From 7c47698d95ade00662fce89cba8a94b89e4c63bd Mon Sep 17 00:00:00 2001 From: JackDandy Date: Fri, 27 Jan 2017 14:23:35 +0000 Subject: [PATCH] Update feedparser library 5.2.0 (8c62940) to 5.2.1 (f1dd1bb). --- CHANGES.md | 1 + lib/feedparser/__init__.py | 44 + lib/feedparser/api.py | 247 ++ lib/feedparser/datetimes/__init__.py | 41 + lib/feedparser/datetimes/asctime.py | 32 + lib/feedparser/datetimes/greek.py | 56 + lib/feedparser/datetimes/hungarian.py | 43 + lib/feedparser/datetimes/iso8601.py | 120 + lib/feedparser/datetimes/korean.py | 47 + lib/feedparser/datetimes/perforce.py | 25 + lib/feedparser/datetimes/rfc822.py | 121 + lib/feedparser/datetimes/w3dtf.py | 88 + lib/feedparser/encodings.py | 279 ++ lib/feedparser/exceptions.py | 52 + lib/feedparser/feedparser.py | 4007 ------------------------- lib/feedparser/html.py | 213 ++ lib/feedparser/http.py | 231 ++ lib/feedparser/mixin.py | 754 +++++ lib/feedparser/namespaces/__init__.py | 0 lib/feedparser/namespaces/_base.py | 499 +++ lib/feedparser/namespaces/admin.py | 55 + lib/feedparser/namespaces/cc.py | 71 + lib/feedparser/namespaces/dc.py | 136 + lib/feedparser/namespaces/georss.py | 264 ++ lib/feedparser/namespaces/itunes.py | 111 + lib/feedparser/namespaces/mediarss.py | 142 + lib/feedparser/namespaces/psc.py | 72 + lib/feedparser/parsers/__init__.py | 0 lib/feedparser/parsers/loose.py | 72 + lib/feedparser/parsers/strict.py | 135 + lib/feedparser/sanitizer.py | 466 +++ lib/feedparser/sgml.py | 76 + lib/feedparser/sgmllib3.py | 547 ---- lib/feedparser/urls.py | 131 + lib/feedparser/util.py | 144 + sickbeard/rssfeeds.py | 2 +- 36 files changed, 4769 insertions(+), 4555 deletions(-) create mode 100644 lib/feedparser/api.py create mode 100644 lib/feedparser/datetimes/__init__.py create mode 100644 lib/feedparser/datetimes/asctime.py create mode 100644 lib/feedparser/datetimes/greek.py create mode 100644 lib/feedparser/datetimes/hungarian.py create mode 100644 lib/feedparser/datetimes/iso8601.py create mode 100644 lib/feedparser/datetimes/korean.py create mode 100644 lib/feedparser/datetimes/perforce.py create mode 100644 lib/feedparser/datetimes/rfc822.py create mode 100644 lib/feedparser/datetimes/w3dtf.py create mode 100644 lib/feedparser/encodings.py create mode 100644 lib/feedparser/exceptions.py delete mode 100644 lib/feedparser/feedparser.py create mode 100644 lib/feedparser/html.py create mode 100644 lib/feedparser/http.py create mode 100644 lib/feedparser/mixin.py create mode 100644 lib/feedparser/namespaces/__init__.py create mode 100644 lib/feedparser/namespaces/_base.py create mode 100644 lib/feedparser/namespaces/admin.py create mode 100644 lib/feedparser/namespaces/cc.py create mode 100644 lib/feedparser/namespaces/dc.py create mode 100644 lib/feedparser/namespaces/georss.py create mode 100644 lib/feedparser/namespaces/itunes.py create mode 100644 lib/feedparser/namespaces/mediarss.py create mode 100644 lib/feedparser/namespaces/psc.py create mode 100644 lib/feedparser/parsers/__init__.py create mode 100644 lib/feedparser/parsers/loose.py create mode 100644 lib/feedparser/parsers/strict.py create mode 100644 lib/feedparser/sanitizer.py create mode 100644 lib/feedparser/sgml.py delete mode 100644 lib/feedparser/sgmllib3.py create mode 100644 lib/feedparser/urls.py create mode 100644 lib/feedparser/util.py diff --git a/CHANGES.md b/CHANGES.md index 6cc41264..9a71212a 100644 --- a/CHANGES.md +++ b/CHANGES.md @@ -12,6 +12,7 @@ * Update Beautiful Soup 4.4.0 (r397) to 4.5.3 (r439) * Update cachecontrol library 0.11.5 to 0.11.7 (3b3b776) * Update Certifi 2015.11.20.1 (385476b) to 2017.01.23 (9f9dc30) +* Update feedparser library 5.2.0 (8c62940) to 5.2.1 (f1dd1bb) [develop changelog] diff --git a/lib/feedparser/__init__.py b/lib/feedparser/__init__.py index e69de29b..a52b39a2 100644 --- a/lib/feedparser/__init__.py +++ b/lib/feedparser/__init__.py @@ -0,0 +1,44 @@ +# Copyright 2010-2015 Kurt McKee +# Copyright 2002-2008 Mark Pilgrim +# All rights reserved. +# +# This file is part of feedparser. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE.""" + +from __future__ import absolute_import, unicode_literals + +__author__ = 'Kurt McKee ' +__license__ = 'BSD 2-clause' +__version__ = '5.2.1' + +# HTTP "User-Agent" header to send to servers when downloading feeds. +# If you are embedding feedparser in a larger application, you should +# change this to your application name and URL. +USER_AGENT = "feedparser/%s +https://github.com/kurtmckee/feedparser/" % __version__ + +from . import api +from .api import parse +from .datetimes import registerDateHandler +from .exceptions import * + +api.USER_AGENT = USER_AGENT diff --git a/lib/feedparser/api.py b/lib/feedparser/api.py new file mode 100644 index 00000000..614bd2d2 --- /dev/null +++ b/lib/feedparser/api.py @@ -0,0 +1,247 @@ +# The public API for feedparser +# Copyright 2010-2015 Kurt McKee +# Copyright 2002-2008 Mark Pilgrim +# All rights reserved. +# +# This file is a part of feedparser. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +from __future__ import absolute_import, unicode_literals + +import xml.sax + +try: + from io import BytesIO as _StringIO +except ImportError: + try: + from cStringIO import StringIO as _StringIO + except ImportError: + from StringIO import StringIO as _StringIO + +try: + import urllib.parse +except ImportError: + from urlparse import urlparse + + class urllib(object): + class parse(object): + urlparse = staticmethod(urlparse) + +from .datetimes import registerDateHandler, _parse_date +from .encodings import convert_to_utf8 +from .exceptions import * +from .html import _BaseHTMLProcessor +from . import http +from . import mixin +from .mixin import _FeedParserMixin +from .parsers.loose import _LooseFeedParser +from .parsers.strict import _StrictFeedParser +from .sanitizer import replace_doctype +from .sgml import * +from .urls import _convert_to_idn, _makeSafeAbsoluteURI +from .util import FeedParserDict + +bytes_ = type(b'') +unicode_ = type('') +try: + unichr + basestring +except NameError: + unichr = chr + basestring = str + +# List of preferred XML parsers, by SAX driver name. These will be tried first, +# but if they're not installed, Python will keep searching through its own list +# of pre-installed parsers until it finds one that supports everything we need. +PREFERRED_XML_PARSERS = ["drv_libxml2"] + +# If you want feedparser to automatically resolve all relative URIs, set this +# to 1. +RESOLVE_RELATIVE_URIS = 1 + +# If you want feedparser to automatically sanitize all potentially unsafe +# HTML content, set this to 1. +SANITIZE_HTML = 1 + +_XML_AVAILABLE = True +mixin.RESOLVE_RELATIVE_URIS = RESOLVE_RELATIVE_URIS +mixin.SANITIZE_HTML = SANITIZE_HTML + +SUPPORTED_VERSIONS = { + '': 'unknown', + 'rss090': 'RSS 0.90', + 'rss091n': 'RSS 0.91 (Netscape)', + 'rss091u': 'RSS 0.91 (Userland)', + 'rss092': 'RSS 0.92', + 'rss093': 'RSS 0.93', + 'rss094': 'RSS 0.94', + 'rss20': 'RSS 2.0', + 'rss10': 'RSS 1.0', + 'rss': 'RSS (unknown version)', + 'atom01': 'Atom 0.1', + 'atom02': 'Atom 0.2', + 'atom03': 'Atom 0.3', + 'atom10': 'Atom 1.0', + 'atom': 'Atom (unknown version)', + 'cdf': 'CDF', +} + +def _open_resource(url_file_stream_or_string, etag, modified, agent, referrer, handlers, request_headers, result): + """URL, filename, or string --> stream + + This function lets you define parsers that take any input source + (URL, pathname to local or network file, or actual data as a string) + and deal with it in a uniform manner. Returned object is guaranteed + to have all the basic stdio read methods (read, readline, readlines). + Just .close() the object when you're done with it. + + If the etag argument is supplied, it will be used as the value of an + If-None-Match request header. + + If the modified argument is supplied, it can be a tuple of 9 integers + (as returned by gmtime() in the standard Python time module) or a date + string in any format supported by feedparser. Regardless, it MUST + be in GMT (Greenwich Mean Time). It will be reformatted into an + RFC 1123-compliant date and used as the value of an If-Modified-Since + request header. + + If the agent argument is supplied, it will be used as the value of a + User-Agent request header. + + If the referrer argument is supplied, it will be used as the value of a + Referer[sic] request header. + + If handlers is supplied, it is a list of handlers used to build a + urllib2 opener. + + if request_headers is supplied it is a dictionary of HTTP request headers + that will override the values generated by FeedParser. + + :return: A :class:`StringIO.StringIO` or :class:`io.BytesIO`. + """ + + if hasattr(url_file_stream_or_string, 'read'): + return url_file_stream_or_string.read() + + if isinstance(url_file_stream_or_string, basestring) \ + and urllib.parse.urlparse(url_file_stream_or_string)[0] in ('http', 'https', 'ftp', 'file', 'feed'): + return http.get(url_file_stream_or_string, etag, modified, agent, referrer, handlers, request_headers, result) + + # try to open with native open function (if url_file_stream_or_string is a filename) + try: + with open(url_file_stream_or_string, 'rb') as f: + data = f.read() + except (IOError, UnicodeEncodeError, TypeError, ValueError): + # if url_file_stream_or_string is a unicode object that + # cannot be converted to the encoding returned by + # sys.getfilesystemencoding(), a UnicodeEncodeError + # will be thrown + # If url_file_stream_or_string is a string that contains NULL + # (such as an XML document encoded in UTF-32), TypeError will + # be thrown. + pass + else: + return data + + # treat url_file_stream_or_string as string + if not isinstance(url_file_stream_or_string, bytes_): + return url_file_stream_or_string.encode('utf-8') + return url_file_stream_or_string + +LooseFeedParser = type(str('LooseFeedParser'), ( + _LooseFeedParser, _FeedParserMixin, _BaseHTMLProcessor, object +), {}) +StrictFeedParser = type(str('StrictFeedParser'), ( + _StrictFeedParser, _FeedParserMixin, xml.sax.handler.ContentHandler, object +), {}) + +def parse(url_file_stream_or_string, etag=None, modified=None, agent=None, referrer=None, handlers=None, request_headers=None, response_headers=None): + '''Parse a feed from a URL, file, stream, or string. + + request_headers, if given, is a dict from http header name to value to add + to the request; this overrides internally generated values. + + :return: A :class:`FeedParserDict`. + ''' + + if not agent: + agent = USER_AGENT + result = FeedParserDict( + bozo = False, + entries = [], + feed = FeedParserDict(), + headers = {}, + ) + + data = _open_resource(url_file_stream_or_string, etag, modified, agent, referrer, handlers, request_headers, result) + + if not data: + return result + + # overwrite existing headers using response_headers + result['headers'].update(response_headers or {}) + + data = convert_to_utf8(result['headers'], data, result) + use_strict_parser = result['encoding'] and True or False + + result['version'], data, entities = replace_doctype(data) + + # Ensure that baseuri is an absolute URI using an acceptable URI scheme. + contentloc = result['headers'].get('content-location', '') + href = result.get('href', '') + baseuri = _makeSafeAbsoluteURI(href, contentloc) or _makeSafeAbsoluteURI(contentloc) or href + + baselang = result['headers'].get('content-language', None) + if isinstance(baselang, bytes_) and baselang is not None: + baselang = baselang.decode('utf-8', 'ignore') + + if not _XML_AVAILABLE: + use_strict_parser = 0 + if use_strict_parser: + # initialize the SAX parser + feedparser = StrictFeedParser(baseuri, baselang, 'utf-8') + saxparser = xml.sax.make_parser(PREFERRED_XML_PARSERS) + saxparser.setFeature(xml.sax.handler.feature_namespaces, 1) + try: + # disable downloading external doctype references, if possible + saxparser.setFeature(xml.sax.handler.feature_external_ges, 0) + except xml.sax.SAXNotSupportedException: + pass + saxparser.setContentHandler(feedparser) + saxparser.setErrorHandler(feedparser) + source = xml.sax.xmlreader.InputSource() + source.setByteStream(_StringIO(data)) + try: + saxparser.parse(source) + except xml.sax.SAXException as e: + result['bozo'] = 1 + result['bozo_exception'] = feedparser.exc or e + use_strict_parser = 0 + if not use_strict_parser and _SGML_AVAILABLE: + feedparser = LooseFeedParser(baseuri, baselang, 'utf-8', entities) + feedparser.feed(data.decode('utf-8', 'replace')) + result['feed'] = feedparser.feeddata + result['entries'] = feedparser.entries + result['version'] = result['version'] or feedparser.version + result['namespaces'] = feedparser.namespacesInUse + return result diff --git a/lib/feedparser/datetimes/__init__.py b/lib/feedparser/datetimes/__init__.py new file mode 100644 index 00000000..96b45e9d --- /dev/null +++ b/lib/feedparser/datetimes/__init__.py @@ -0,0 +1,41 @@ +from __future__ import absolute_import + +from .asctime import _parse_date_asctime +from .greek import _parse_date_greek +from .hungarian import _parse_date_hungarian +from .iso8601 import _parse_date_iso8601 +from .korean import _parse_date_onblog, _parse_date_nate +from .perforce import _parse_date_perforce +from .rfc822 import _parse_date_rfc822 +from .w3dtf import _parse_date_w3dtf + +_date_handlers = [] +def registerDateHandler(func): + '''Register a date handler function (takes string, returns 9-tuple date in GMT)''' + _date_handlers.insert(0, func) + +def _parse_date(dateString): + '''Parses a variety of date formats into a 9-tuple in GMT''' + if not dateString: + return None + for handler in _date_handlers: + try: + date9tuple = handler(dateString) + except (KeyError, OverflowError, ValueError): + continue + if not date9tuple: + continue + if len(date9tuple) != 9: + continue + return date9tuple + return None + +registerDateHandler(_parse_date_onblog) +registerDateHandler(_parse_date_nate) +registerDateHandler(_parse_date_greek) +registerDateHandler(_parse_date_hungarian) +registerDateHandler(_parse_date_perforce) +registerDateHandler(_parse_date_asctime) +registerDateHandler(_parse_date_iso8601) +registerDateHandler(_parse_date_rfc822) +registerDateHandler(_parse_date_w3dtf) diff --git a/lib/feedparser/datetimes/asctime.py b/lib/feedparser/datetimes/asctime.py new file mode 100644 index 00000000..54fc8cbb --- /dev/null +++ b/lib/feedparser/datetimes/asctime.py @@ -0,0 +1,32 @@ +from __future__ import absolute_import, unicode_literals + +from .rfc822 import _parse_date_rfc822 + +_months = ['jan', 'feb', 'mar', 'apr', 'may', 'jun', + 'jul', 'aug', 'sep', 'oct', 'nov', 'dec'] +def _parse_date_asctime(dt): + """Parse asctime-style dates. + + Converts asctime to RFC822-compatible dates and uses the RFC822 parser + to do the actual parsing. + + Supported formats (format is standardized to the first one listed): + + * {weekday name} {month name} dd hh:mm:ss {+-tz} yyyy + * {weekday name} {month name} dd hh:mm:ss yyyy + """ + + parts = dt.split() + + # Insert a GMT timezone, if needed. + if len(parts) == 5: + parts.insert(4, '+0000') + + # Exit if there are not six parts. + if len(parts) != 6: + return None + + # Reassemble the parts in an RFC822-compatible order and parse them. + return _parse_date_rfc822(' '.join([ + parts[0], parts[2], parts[1], parts[5], parts[3], parts[4], + ])) diff --git a/lib/feedparser/datetimes/greek.py b/lib/feedparser/datetimes/greek.py new file mode 100644 index 00000000..e47d9215 --- /dev/null +++ b/lib/feedparser/datetimes/greek.py @@ -0,0 +1,56 @@ +from __future__ import absolute_import, unicode_literals + +import re + +from .rfc822 import _parse_date_rfc822 + +# Unicode strings for Greek date strings +_greek_months = \ + { \ + '\u0399\u03b1\u03bd': 'Jan', # c9e1ed in iso-8859-7 + '\u03a6\u03b5\u03b2': 'Feb', # d6e5e2 in iso-8859-7 + '\u039c\u03ac\u03ce': 'Mar', # ccdcfe in iso-8859-7 + '\u039c\u03b1\u03ce': 'Mar', # cce1fe in iso-8859-7 + '\u0391\u03c0\u03c1': 'Apr', # c1f0f1 in iso-8859-7 + '\u039c\u03ac\u03b9': 'May', # ccdce9 in iso-8859-7 + '\u039c\u03b1\u03ca': 'May', # cce1fa in iso-8859-7 + '\u039c\u03b1\u03b9': 'May', # cce1e9 in iso-8859-7 + '\u0399\u03bf\u03cd\u03bd': 'Jun', # c9effded in iso-8859-7 + '\u0399\u03bf\u03bd': 'Jun', # c9efed in iso-8859-7 + '\u0399\u03bf\u03cd\u03bb': 'Jul', # c9effdeb in iso-8859-7 + '\u0399\u03bf\u03bb': 'Jul', # c9f9eb in iso-8859-7 + '\u0391\u03cd\u03b3': 'Aug', # c1fde3 in iso-8859-7 + '\u0391\u03c5\u03b3': 'Aug', # c1f5e3 in iso-8859-7 + '\u03a3\u03b5\u03c0': 'Sep', # d3e5f0 in iso-8859-7 + '\u039f\u03ba\u03c4': 'Oct', # cfeaf4 in iso-8859-7 + '\u039d\u03bf\u03ad': 'Nov', # cdefdd in iso-8859-7 + '\u039d\u03bf\u03b5': 'Nov', # cdefe5 in iso-8859-7 + '\u0394\u03b5\u03ba': 'Dec', # c4e5ea in iso-8859-7 + } + +_greek_wdays = \ + { \ + '\u039a\u03c5\u03c1': 'Sun', # caf5f1 in iso-8859-7 + '\u0394\u03b5\u03c5': 'Mon', # c4e5f5 in iso-8859-7 + '\u03a4\u03c1\u03b9': 'Tue', # d4f1e9 in iso-8859-7 + '\u03a4\u03b5\u03c4': 'Wed', # d4e5f4 in iso-8859-7 + '\u03a0\u03b5\u03bc': 'Thu', # d0e5ec in iso-8859-7 + '\u03a0\u03b1\u03c1': 'Fri', # d0e1f1 in iso-8859-7 + '\u03a3\u03b1\u03b2': 'Sat', # d3e1e2 in iso-8859-7 + } + +_greek_date_format_re = \ + re.compile('([^,]+),\s+(\d{2})\s+([^\s]+)\s+(\d{4})\s+(\d{2}):(\d{2}):(\d{2})\s+([^\s]+)') + +def _parse_date_greek(dateString): + '''Parse a string according to a Greek 8-bit date format.''' + m = _greek_date_format_re.match(dateString) + if not m: + return + wday = _greek_wdays[m.group(1)] + month = _greek_months[m.group(3)] + rfc822date = '%(wday)s, %(day)s %(month)s %(year)s %(hour)s:%(minute)s:%(second)s %(zonediff)s' % \ + {'wday': wday, 'day': m.group(2), 'month': month, 'year': m.group(4),\ + 'hour': m.group(5), 'minute': m.group(6), 'second': m.group(7),\ + 'zonediff': m.group(8)} + return _parse_date_rfc822(rfc822date) diff --git a/lib/feedparser/datetimes/hungarian.py b/lib/feedparser/datetimes/hungarian.py new file mode 100644 index 00000000..11c56b45 --- /dev/null +++ b/lib/feedparser/datetimes/hungarian.py @@ -0,0 +1,43 @@ +from __future__ import absolute_import, unicode_literals + +import re + +from .w3dtf import _parse_date_w3dtf + +# Unicode strings for Hungarian date strings +_hungarian_months = \ + { \ + 'janu\u00e1r': '01', # e1 in iso-8859-2 + 'febru\u00e1ri': '02', # e1 in iso-8859-2 + 'm\u00e1rcius': '03', # e1 in iso-8859-2 + '\u00e1prilis': '04', # e1 in iso-8859-2 + 'm\u00e1ujus': '05', # e1 in iso-8859-2 + 'j\u00fanius': '06', # fa in iso-8859-2 + 'j\u00falius': '07', # fa in iso-8859-2 + 'augusztus': '08', + 'szeptember': '09', + 'okt\u00f3ber': '10', # f3 in iso-8859-2 + 'november': '11', + 'december': '12', + } + +_hungarian_date_format_re = \ + re.compile('(\d{4})-([^-]+)-(\d{,2})T(\d{,2}):(\d{2})((\+|-)(\d{,2}:\d{2}))') + +def _parse_date_hungarian(dateString): + '''Parse a string according to a Hungarian 8-bit date format.''' + m = _hungarian_date_format_re.match(dateString) + if not m or m.group(2) not in _hungarian_months: + return None + month = _hungarian_months[m.group(2)] + day = m.group(3) + if len(day) == 1: + day = '0' + day + hour = m.group(4) + if len(hour) == 1: + hour = '0' + hour + w3dtfdate = '%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s%(zonediff)s' % \ + {'year': m.group(1), 'month': month, 'day': day,\ + 'hour': hour, 'minute': m.group(5),\ + 'zonediff': m.group(6)} + return _parse_date_w3dtf(w3dtfdate) diff --git a/lib/feedparser/datetimes/iso8601.py b/lib/feedparser/datetimes/iso8601.py new file mode 100644 index 00000000..eb36e2db --- /dev/null +++ b/lib/feedparser/datetimes/iso8601.py @@ -0,0 +1,120 @@ +from __future__ import absolute_import, unicode_literals + +import re +import time + +# ISO-8601 date parsing routines written by Fazal Majid. +# The ISO 8601 standard is very convoluted and irregular - a full ISO 8601 +# parser is beyond the scope of feedparser and would be a worthwhile addition +# to the Python library. +# A single regular expression cannot parse ISO 8601 date formats into groups +# as the standard is highly irregular (for instance is 030104 2003-01-04 or +# 0301-04-01), so we use templates instead. +# Please note the order in templates is significant because we need a +# greedy match. +_iso8601_tmpl = ['YYYY-?MM-?DD', 'YYYY-0MM?-?DD', 'YYYY-MM', 'YYYY-?OOO', + 'YY-?MM-?DD', 'YY-?OOO', 'YYYY', + '-YY-?MM', '-OOO', '-YY', + '--MM-?DD', '--MM', + '---DD', + 'CC', ''] +_iso8601_re = [ + tmpl.replace( + 'YYYY', r'(?P\d{4})').replace( + 'YY', r'(?P\d\d)').replace( + 'MM', r'(?P[01]\d)').replace( + 'DD', r'(?P[0123]\d)').replace( + 'OOO', r'(?P[0123]\d\d)').replace( + 'CC', r'(?P\d\d$)') + + r'(T?(?P\d{2}):(?P\d{2})' + + r'(:(?P\d{2}))?' + + r'(\.(?P\d+))?' + + r'(?P[+-](?P\d{2})(:(?P\d{2}))?|Z)?)?' + for tmpl in _iso8601_tmpl] +try: + del tmpl +except NameError: + pass +_iso8601_matches = [re.compile(regex).match for regex in _iso8601_re] +try: + del regex +except NameError: + pass + +def _parse_date_iso8601(dateString): + '''Parse a variety of ISO-8601-compatible formats like 20040105''' + m = None + for _iso8601_match in _iso8601_matches: + m = _iso8601_match(dateString) + if m: + break + if not m: + return + if m.span() == (0, 0): + return + params = m.groupdict() + ordinal = params.get('ordinal', 0) + if ordinal: + ordinal = int(ordinal) + else: + ordinal = 0 + year = params.get('year', '--') + if not year or year == '--': + year = time.gmtime()[0] + elif len(year) == 2: + # ISO 8601 assumes current century, i.e. 93 -> 2093, NOT 1993 + year = 100 * int(time.gmtime()[0] / 100) + int(year) + else: + year = int(year) + month = params.get('month', '-') + if not month or month == '-': + # ordinals are NOT normalized by mktime, we simulate them + # by setting month=1, day=ordinal + if ordinal: + month = 1 + else: + month = time.gmtime()[1] + month = int(month) + day = params.get('day', 0) + if not day: + # see above + if ordinal: + day = ordinal + elif params.get('century', 0) or \ + params.get('year', 0) or params.get('month', 0): + day = 1 + else: + day = time.gmtime()[2] + else: + day = int(day) + # special case of the century - is the first year of the 21st century + # 2000 or 2001 ? The debate goes on... + if 'century' in params: + year = (int(params['century']) - 1) * 100 + 1 + # in ISO 8601 most fields are optional + for field in ['hour', 'minute', 'second', 'tzhour', 'tzmin']: + if not params.get(field, None): + params[field] = 0 + hour = int(params.get('hour', 0)) + minute = int(params.get('minute', 0)) + second = int(float(params.get('second', 0))) + # weekday is normalized by mktime(), we can ignore it + weekday = 0 + daylight_savings_flag = -1 + tm = [year, month, day, hour, minute, second, weekday, + ordinal, daylight_savings_flag] + # ISO 8601 time zone adjustments + tz = params.get('tz') + if tz and tz != 'Z': + if tz[0] == '-': + tm[3] += int(params.get('tzhour', 0)) + tm[4] += int(params.get('tzmin', 0)) + elif tz[0] == '+': + tm[3] -= int(params.get('tzhour', 0)) + tm[4] -= int(params.get('tzmin', 0)) + else: + return None + # Python's time.mktime() is a wrapper around the ANSI C mktime(3c) + # which is guaranteed to normalize d/m/y/h/m/s. + # Many implementations have bugs, but we'll pretend they don't. + return time.localtime(time.mktime(tuple(tm))) diff --git a/lib/feedparser/datetimes/korean.py b/lib/feedparser/datetimes/korean.py new file mode 100644 index 00000000..7e6e0910 --- /dev/null +++ b/lib/feedparser/datetimes/korean.py @@ -0,0 +1,47 @@ +from __future__ import absolute_import, unicode_literals + +import re + +from .w3dtf import _parse_date_w3dtf + +# 8-bit date handling routines written by ytrewq1. +_korean_year = '\ub144' # b3e2 in euc-kr +_korean_month = '\uc6d4' # bff9 in euc-kr +_korean_day = '\uc77c' # c0cf in euc-kr +_korean_am = '\uc624\uc804' # bfc0 c0fc in euc-kr +_korean_pm = '\uc624\ud6c4' # bfc0 c8c4 in euc-kr + +_korean_onblog_date_re = \ + re.compile('(\d{4})%s\s+(\d{2})%s\s+(\d{2})%s\s+(\d{2}):(\d{2}):(\d{2})' % \ + (_korean_year, _korean_month, _korean_day)) +_korean_nate_date_re = \ + re.compile('(\d{4})-(\d{2})-(\d{2})\s+(%s|%s)\s+(\d{,2}):(\d{,2}):(\d{,2})' % \ + (_korean_am, _korean_pm)) +def _parse_date_onblog(dateString): + '''Parse a string according to the OnBlog 8-bit date format''' + m = _korean_onblog_date_re.match(dateString) + if not m: + return + w3dtfdate = '%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s:%(second)s%(zonediff)s' % \ + {'year': m.group(1), 'month': m.group(2), 'day': m.group(3),\ + 'hour': m.group(4), 'minute': m.group(5), 'second': m.group(6),\ + 'zonediff': '+09:00'} + return _parse_date_w3dtf(w3dtfdate) + +def _parse_date_nate(dateString): + '''Parse a string according to the Nate 8-bit date format''' + m = _korean_nate_date_re.match(dateString) + if not m: + return + hour = int(m.group(5)) + ampm = m.group(4) + if (ampm == _korean_pm): + hour += 12 + hour = str(hour) + if len(hour) == 1: + hour = '0' + hour + w3dtfdate = '%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s:%(second)s%(zonediff)s' % \ + {'year': m.group(1), 'month': m.group(2), 'day': m.group(3),\ + 'hour': hour, 'minute': m.group(6), 'second': m.group(7),\ + 'zonediff': '+09:00'} + return _parse_date_w3dtf(w3dtfdate) diff --git a/lib/feedparser/datetimes/perforce.py b/lib/feedparser/datetimes/perforce.py new file mode 100644 index 00000000..f5b7d8cc --- /dev/null +++ b/lib/feedparser/datetimes/perforce.py @@ -0,0 +1,25 @@ +from __future__ import absolute_import, unicode_literals + +try: + import rfc822 +except ImportError: + from email import _parseaddr as rfc822 + +import re +import time + +def _parse_date_perforce(aDateString): + """parse a date in yyyy/mm/dd hh:mm:ss TTT format""" + # Fri, 2006/09/15 08:19:53 EDT + _my_date_pattern = re.compile( \ + r'(\w{,3}), (\d{,4})/(\d{,2})/(\d{2}) (\d{,2}):(\d{2}):(\d{2}) (\w{,3})') + + m = _my_date_pattern.search(aDateString) + if m is None: + return None + dow, year, month, day, hour, minute, second, tz = m.groups() + months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'] + dateString = "%s, %s %s %s %s:%s:%s %s" % (dow, day, months[int(month) - 1], year, hour, minute, second, tz) + tm = rfc822.parsedate_tz(dateString) + if tm: + return time.gmtime(rfc822.mktime_tz(tm)) diff --git a/lib/feedparser/datetimes/rfc822.py b/lib/feedparser/datetimes/rfc822.py new file mode 100644 index 00000000..88bc3864 --- /dev/null +++ b/lib/feedparser/datetimes/rfc822.py @@ -0,0 +1,121 @@ +from __future__ import absolute_import, unicode_literals + +import datetime + +timezone_names = { + 'ut': 0, 'gmt': 0, 'z': 0, + 'adt': -3, 'ast': -4, 'at': -4, + 'edt': -4, 'est': -5, 'et': -5, + 'cdt': -5, 'cst': -6, 'ct': -6, + 'mdt': -6, 'mst': -7, 'mt': -7, + 'pdt': -7, 'pst': -8, 'pt': -8, + 'a': -1, 'n': 1, + 'm': -12, 'y': 12, + 'met': 1, 'mest': 2, +} +day_names = {'mon', 'tue', 'wed', 'thu', 'fri', 'sat', 'sun'} +months = { + 'jan': 1, 'feb': 2, 'mar': 3, 'apr': 4, 'may': 5, 'jun': 6, + 'jul': 7, 'aug': 8, 'sep': 9, 'oct': 10, 'nov': 11, 'dec': 12, +} + + +def _parse_date_rfc822(date): + """Parse RFC 822 dates and times + http://tools.ietf.org/html/rfc822#section-5 + + There are some formatting differences that are accounted for: + 1. Years may be two or four digits. + 2. The month and day can be swapped. + 3. Additional timezone names are supported. + 4. A default time and timezone are assumed if only a date is present. + + :param str date: a date/time string that will be converted to a time tuple + :returns: a UTC time tuple, or None + :rtype: time.struct_time | None + """ + + parts = date.lower().split() + if len(parts) < 5: + # Assume that the time and timezone are missing + parts.extend(('00:00:00', '0000')) + # Remove the day name + if parts[0][:3] in day_names: + parts = parts[1:] + if len(parts) < 5: + # If there are still fewer than five parts, there's not enough + # information to interpret this. + return None + + # Handle the day and month name. + month = months.get(parts[1][:3]) + try: + day = int(parts[0]) + except ValueError: + # Check if the day and month are swapped. + if months.get(parts[0][:3]): + try: + day = int(parts[1]) + except ValueError: + return None + month = months.get(parts[0][:3]) + else: + return None + if not month: + return None + + # Handle the year. + try: + year = int(parts[2]) + except ValueError: + return None + # Normalize two-digit years: + # Anything in the 90's is interpreted as 1990 and on. + # Anything 89 or less is interpreted as 2089 or before. + if len(parts[2]) <= 2: + year += (1900, 2000)[year < 90] + + # Handle the time (default to 00:00:00). + time_parts = parts[3].split(':') + time_parts.extend(('0',) * (3 - len(time_parts))) + try: + (hour, minute, second) = [int(i) for i in time_parts] + except ValueError: + return None + + # Handle the timezone information, if any (default to +0000). + # Strip 'Etc/' from the timezone. + if parts[4].startswith('etc/'): + parts[4] = parts[4][4:] + # Normalize timezones that start with 'gmt': + # GMT-05:00 => -0500 + # GMT => GMT + if parts[4].startswith('gmt'): + parts[4] = ''.join(parts[4][3:].split(':')) or 'gmt' + # Handle timezones like '-0500', '+0500', and 'EST' + if parts[4] and parts[4][0] in ('-', '+'): + try: + timezone_hours = int(parts[4][1:3]) + timezone_minutes = int(parts[4][3:]) + except ValueError: + return None + if parts[4].startswith('-'): + timezone_hours *= -1 + timezone_minutes *= -1 + else: + timezone_hours = timezone_names.get(parts[4], 0) + timezone_minutes = 0 + + # Create the datetime object and timezone delta objects + try: + stamp = datetime.datetime(year, month, day, hour, minute, second) + except ValueError: + return None + delta = datetime.timedelta(0, 0, 0, 0, timezone_minutes, timezone_hours) + + # Return the date and timestamp in a UTC 9-tuple + try: + return (stamp - delta).utctimetuple() + except (OverflowError, ValueError): + # IronPython throws ValueErrors instead of OverflowErrors + return None diff --git a/lib/feedparser/datetimes/w3dtf.py b/lib/feedparser/datetimes/w3dtf.py new file mode 100644 index 00000000..02bc712e --- /dev/null +++ b/lib/feedparser/datetimes/w3dtf.py @@ -0,0 +1,88 @@ +from __future__ import absolute_import, unicode_literals + +import datetime + +timezonenames = { + 'ut': 0, 'gmt': 0, 'z': 0, + 'adt': -3, 'ast': -4, 'at': -4, + 'edt': -4, 'est': -5, 'et': -5, + 'cdt': -5, 'cst': -6, 'ct': -6, + 'mdt': -6, 'mst': -7, 'mt': -7, + 'pdt': -7, 'pst': -8, 'pt': -8, + 'a': -1, 'n': 1, + 'm': -12, 'y': 12, +} +# W3 date and time format parser +# http://www.w3.org/TR/NOTE-datetime +# Also supports MSSQL-style datetimes as defined at: +# http://msdn.microsoft.com/en-us/library/ms186724.aspx +# (basically, allow a space as a date/time/timezone separator) +def _parse_date_w3dtf(datestr): + if not datestr.strip(): + return None + parts = datestr.lower().split('t') + if len(parts) == 1: + # This may be a date only, or may be an MSSQL-style date + parts = parts[0].split() + if len(parts) == 1: + # Treat this as a date only + parts.append('00:00:00z') + elif len(parts) > 2: + return None + date = parts[0].split('-', 2) + if not date or len(date[0]) != 4: + return None + # Ensure that `date` has 3 elements. Using '1' sets the default + # month to January and the default day to the 1st of the month. + date.extend(['1'] * (3 - len(date))) + try: + year, month, day = [int(i) for i in date] + except ValueError: + # `date` may have more than 3 elements or may contain + # non-integer strings. + return None + if parts[1].endswith('z'): + parts[1] = parts[1][:-1] + parts.append('z') + # Append the numeric timezone offset, if any, to parts. + # If this is an MSSQL-style date then parts[2] already contains + # the timezone information, so `append()` will not affect it. + # Add 1 to each value so that if `find()` returns -1 it will be + # treated as False. + loc = parts[1].find('-') + 1 or parts[1].find('+') + 1 or len(parts[1]) + 1 + loc = loc - 1 + parts.append(parts[1][loc:]) + parts[1] = parts[1][:loc] + time = parts[1].split(':', 2) + # Ensure that time has 3 elements. Using '0' means that the + # minutes and seconds, if missing, will default to 0. + time.extend(['0'] * (3 - len(time))) + tzhour = 0 + tzmin = 0 + if parts[2][:1] in ('-', '+'): + try: + tzhour = int(parts[2][1:3]) + tzmin = int(parts[2][4:]) + except ValueError: + return None + if parts[2].startswith('-'): + tzhour = tzhour * -1 + tzmin = tzmin * -1 + else: + tzhour = timezonenames.get(parts[2], 0) + try: + hour, minute, second = [int(float(i)) for i in time] + except ValueError: + return None + # Create the datetime object and timezone delta objects + try: + stamp = datetime.datetime(year, month, day, hour, minute, second) + except ValueError: + return None + delta = datetime.timedelta(0, 0, 0, 0, tzmin, tzhour) + # Return the date and timestamp in a UTC 9-tuple + try: + return (stamp - delta).utctimetuple() + except (OverflowError, ValueError): + # IronPython throws ValueErrors instead of OverflowErrors + return None diff --git a/lib/feedparser/encodings.py b/lib/feedparser/encodings.py new file mode 100644 index 00000000..6bbdaf70 --- /dev/null +++ b/lib/feedparser/encodings.py @@ -0,0 +1,279 @@ +# Character encoding routines +# Copyright 2010-2015 Kurt McKee +# Copyright 2002-2008 Mark Pilgrim +# All rights reserved. +# +# This file is a part of feedparser. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +from __future__ import absolute_import, unicode_literals + +import cgi +import codecs +import collections +import re + +try: + import chardet +except ImportError: + chardet = None + lazy_chardet_encoding = None +else: + def lazy_chardet_encoding(data): + chardet_encoding = chardet.detect(data)['encoding'] + if not chardet_encoding: + chardet_encoding = '' + if isinstance(chardet_encoding, bytes_): + chardet_encoding = chardet_encoding.encode('ascii', 'ignore') + return chardet_encoding + +from .exceptions import ( + CharacterEncodingOverride, CharacterEncodingUnknown, NonXMLContentType, +) + +bytes_ = type(b'') +unicode_ = type('') + +# Each marker represents some of the characters of the opening XML +# processing instruction (' +RE_XML_DECLARATION = re.compile('^<\?xml[^>]*?>') + +# Capture the value of the XML processing instruction's encoding attribute. +# Example: +RE_XML_PI_ENCODING = re.compile(b'^<\?.*encoding=[\'"](.*?)[\'"].*\?>') + +def convert_to_utf8(http_headers, data, result): + '''Detect and convert the character encoding to UTF-8. + + http_headers is a dictionary + data is a raw string (not Unicode)''' + + # This is so much trickier than it sounds, it's not even funny. + # According to RFC 3023 ('XML Media Types'), if the HTTP Content-Type + # is application/xml, application/*+xml, + # application/xml-external-parsed-entity, or application/xml-dtd, + # the encoding given in the charset parameter of the HTTP Content-Type + # takes precedence over the encoding given in the XML prefix within the + # document, and defaults to 'utf-8' if neither are specified. But, if + # the HTTP Content-Type is text/xml, text/*+xml, or + # text/xml-external-parsed-entity, the encoding given in the XML prefix + # within the document is ALWAYS IGNORED and only the encoding given in + # the charset parameter of the HTTP Content-Type header should be + # respected, and it defaults to 'us-ascii' if not specified. + + # Furthermore, discussion on the atom-syntax mailing list with the + # author of RFC 3023 leads me to the conclusion that any document + # served with a Content-Type of text/* and no charset parameter + # must be treated as us-ascii. (We now do this.) And also that it + # must always be flagged as non-well-formed. (We now do this too.) + + # If Content-Type is unspecified (input was local file or non-HTTP source) + # or unrecognized (server just got it totally wrong), then go by the + # encoding given in the XML prefix of the document and default to + # 'iso-8859-1' as per the HTTP specification (RFC 2616). + + # Then, assuming we didn't find a character encoding in the HTTP headers + # (and the HTTP Content-type allowed us to look in the body), we need + # to sniff the first few bytes of the XML data and try to determine + # whether the encoding is ASCII-compatible. Section F of the XML + # specification shows the way here: + # http://www.w3.org/TR/REC-xml/#sec-guessing-no-ext-info + + # If the sniffed encoding is not ASCII-compatible, we need to make it + # ASCII compatible so that we can sniff further into the XML declaration + # to find the encoding attribute, which will tell us the true encoding. + + # Of course, none of this guarantees that we will be able to parse the + # feed in the declared character encoding (assuming it was declared + # correctly, which many are not). iconv_codec can help a lot; + # you should definitely install it if you can. + # http://cjkpython.i18n.org/ + + bom_encoding = '' + xml_encoding = '' + rfc3023_encoding = '' + + # Look at the first few bytes of the document to guess what + # its encoding may be. We only need to decode enough of the + # document that we can use an ASCII-compatible regular + # expression to search for an XML encoding declaration. + # The heuristic follows the XML specification, section F: + # http://www.w3.org/TR/REC-xml/#sec-guessing-no-ext-info + # Check for BOMs first. + if data[:4] == codecs.BOM_UTF32_BE: + bom_encoding = 'utf-32be' + data = data[4:] + elif data[:4] == codecs.BOM_UTF32_LE: + bom_encoding = 'utf-32le' + data = data[4:] + elif data[:2] == codecs.BOM_UTF16_BE and data[2:4] != ZERO_BYTES: + bom_encoding = 'utf-16be' + data = data[2:] + elif data[:2] == codecs.BOM_UTF16_LE and data[2:4] != ZERO_BYTES: + bom_encoding = 'utf-16le' + data = data[2:] + elif data[:3] == codecs.BOM_UTF8: + bom_encoding = 'utf-8' + data = data[3:] + # Check for the characters '''' + if RE_XML_DECLARATION.search(data): + data = RE_XML_DECLARATION.sub(new_declaration, data) + else: + data = new_declaration + '\n' + data + data = data.encode('utf-8') + break + # if still no luck, give up + if not known_encoding: + error = CharacterEncodingUnknown( + 'document encoding unknown, I tried ' + + '%s, %s, utf-8, windows-1252, and iso-8859-2 but nothing worked' % + (rfc3023_encoding, xml_encoding)) + rfc3023_encoding = '' + elif proposed_encoding != rfc3023_encoding: + error = CharacterEncodingOverride( + 'document declared as %s, but parsed as %s' % + (rfc3023_encoding, proposed_encoding)) + rfc3023_encoding = proposed_encoding + + result['encoding'] = rfc3023_encoding + if error: + result['bozo'] = True + result['bozo_exception'] = error + return data diff --git a/lib/feedparser/exceptions.py b/lib/feedparser/exceptions.py new file mode 100644 index 00000000..9e57775d --- /dev/null +++ b/lib/feedparser/exceptions.py @@ -0,0 +1,52 @@ +# Exceptions used throughout feedparser +# Copyright 2010-2015 Kurt McKee +# Copyright 2002-2008 Mark Pilgrim +# All rights reserved. +# +# This file is a part of feedparser. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +from __future__ import absolute_import, unicode_literals + +__all__ = [ + 'ThingsNobodyCaresAboutButMe', + 'CharacterEncodingOverride', + 'CharacterEncodingUnknown', + 'NonXMLContentType', + 'UndeclaredNamespace', +] + +class ThingsNobodyCaresAboutButMe(Exception): + pass + +class CharacterEncodingOverride(ThingsNobodyCaresAboutButMe): + pass + +class CharacterEncodingUnknown(ThingsNobodyCaresAboutButMe): + pass + +class NonXMLContentType(ThingsNobodyCaresAboutButMe): + pass + +class UndeclaredNamespace(Exception): + pass diff --git a/lib/feedparser/feedparser.py b/lib/feedparser/feedparser.py deleted file mode 100644 index 578e2020..00000000 --- a/lib/feedparser/feedparser.py +++ /dev/null @@ -1,4007 +0,0 @@ -"""Universal feed parser - -Handles RSS 0.9x, RSS 1.0, RSS 2.0, CDF, Atom 0.3, and Atom 1.0 feeds - -Visit https://code.google.com/p/feedparser/ for the latest version -Visit http://packages.python.org/feedparser/ for the latest documentation - -Required: Python 2.4 or later -Recommended: iconv_codec -""" - -__version__ = "5.2.0" -__license__ = """ -Copyright 2010-2015 Kurt McKee -Copyright 2002-2008 Mark Pilgrim -All rights reserved. - -Redistribution and use in source and binary forms, with or without modification, -are permitted provided that the following conditions are met: - -* Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. -* Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' -AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE -LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR -CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS -INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN -CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) -ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -POSSIBILITY OF SUCH DAMAGE.""" -__author__ = "Mark Pilgrim " -__contributors__ = ["Jason Diamond ", - "John Beimler ", - "Fazal Majid ", - "Aaron Swartz ", - "Kevin Marks ", - "Sam Ruby ", - "Ade Oshineye ", - "Martin Pool ", - "Kurt McKee ", - "Bernd Schlapsi ",] - -# HTTP "User-Agent" header to send to servers when downloading feeds. -# If you are embedding feedparser in a larger application, you should -# change this to your application name and URL. -USER_AGENT = "UniversalFeedParser/%s +https://code.google.com/p/feedparser/" % __version__ - -# HTTP "Accept" header to send to servers when downloading feeds. If you don't -# want to send an Accept header, set this to None. -ACCEPT_HEADER = "application/atom+xml,application/rdf+xml,application/rss+xml,application/x-netcdf,application/xml;q=0.9,text/xml;q=0.2,*/*;q=0.1" - -# List of preferred XML parsers, by SAX driver name. These will be tried first, -# but if they're not installed, Python will keep searching through its own list -# of pre-installed parsers until it finds one that supports everything we need. -PREFERRED_XML_PARSERS = ["drv_libxml2"] - -# If you want feedparser to automatically resolve all relative URIs, set this -# to 1. -RESOLVE_RELATIVE_URIS = 1 - -# If you want feedparser to automatically sanitize all potentially unsafe -# HTML content, set this to 1. -SANITIZE_HTML = 1 - -# ---------- Python 3 modules (make it work if possible) ---------- -try: - import rfc822 -except ImportError: - from email import _parseaddr as rfc822 - -try: - # Python 3.1 introduces bytes.maketrans and simultaneously - # deprecates string.maketrans; use bytes.maketrans if possible - _maketrans = bytes.maketrans -except (NameError, AttributeError): - import string - _maketrans = string.maketrans - -# base64 support for Atom feeds that contain embedded binary data -try: - import base64, binascii -except ImportError: - base64 = binascii = None -else: - # Python 3.1 deprecates decodestring in favor of decodebytes - _base64decode = getattr(base64, 'decodebytes', base64.decodestring) - -# _s2bytes: convert a UTF-8 str to bytes if the interpreter is Python 3 -# _l2bytes: convert a list of ints to bytes if the interpreter is Python 3 -try: - if bytes is str: - # In Python 2.5 and below, bytes doesn't exist (NameError) - # In Python 2.6 and above, bytes and str are the same type - raise NameError -except NameError: - # Python 2 - def _s2bytes(s): - return s - def _l2bytes(l): - return ''.join(map(chr, l)) -else: - # Python 3 - def _s2bytes(s): - return bytes(s, 'utf8') - def _l2bytes(l): - return bytes(l) - -# If you want feedparser to allow all URL schemes, set this to () -# List culled from Python's urlparse documentation at: -# http://docs.python.org/library/urlparse.html -# as well as from "URI scheme" at Wikipedia: -# https://secure.wikimedia.org/wikipedia/en/wiki/URI_scheme -# Many more will likely need to be added! -ACCEPTABLE_URI_SCHEMES = ( - 'file', 'ftp', 'gopher', 'h323', 'hdl', 'http', 'https', 'imap', 'magnet', - 'mailto', 'mms', 'news', 'nntp', 'prospero', 'rsync', 'rtsp', 'rtspu', - 'sftp', 'shttp', 'sip', 'sips', 'snews', 'svn', 'svn+ssh', 'telnet', - 'wais', - # Additional common-but-unofficial schemes - 'aim', 'callto', 'cvs', 'facetime', 'feed', 'git', 'gtalk', 'irc', 'ircs', - 'irc6', 'itms', 'mms', 'msnim', 'skype', 'ssh', 'smb', 'svn', 'ymsg', -) -#ACCEPTABLE_URI_SCHEMES = () - -# ---------- required modules (should come with any Python distribution) ---------- -import cgi -import codecs -import copy -import datetime -import itertools -import re -import struct -import time -import types -import urllib -import urllib2 -import urlparse -import warnings - -from htmlentitydefs import name2codepoint, codepoint2name, entitydefs - -try: - from io import BytesIO as _StringIO -except ImportError: - try: - from cStringIO import StringIO as _StringIO - except ImportError: - from StringIO import StringIO as _StringIO - -# ---------- optional modules (feedparser will work without these, but with reduced functionality) ---------- - -# gzip is included with most Python distributions, but may not be available if you compiled your own -try: - import gzip -except ImportError: - gzip = None -try: - import zlib -except ImportError: - zlib = None - -# If a real XML parser is available, feedparser will attempt to use it. feedparser has -# been tested with the built-in SAX parser and libxml2. On platforms where the -# Python distribution does not come with an XML parser (such as Mac OS X 10.2 and some -# versions of FreeBSD), feedparser will quietly fall back on regex-based parsing. -try: - import xml.sax - from xml.sax.saxutils import escape as _xmlescape -except ImportError: - _XML_AVAILABLE = 0 - def _xmlescape(data,entities={}): - data = data.replace('&', '&') - data = data.replace('>', '>') - data = data.replace('<', '<') - for char, entity in entities: - data = data.replace(char, entity) - return data -else: - try: - xml.sax.make_parser(PREFERRED_XML_PARSERS) # test for valid parsers - except xml.sax.SAXReaderNotAvailable: - _XML_AVAILABLE = 0 - else: - _XML_AVAILABLE = 1 - -# sgmllib is not available by default in Python 3; if the end user doesn't have -# it available then we'll lose illformed XML parsing and content santizing -try: - import sgmllib -except ImportError: - # This is probably Python 3, which doesn't include sgmllib anymore - _SGML_AVAILABLE = 0 - - # Mock sgmllib enough to allow subclassing later on - class sgmllib(object): - class SGMLParser(object): - def goahead(self, i): - pass - def parse_starttag(self, i): - pass -else: - _SGML_AVAILABLE = 1 - - # sgmllib defines a number of module-level regular expressions that are - # insufficient for the XML parsing feedparser needs. Rather than modify - # the variables directly in sgmllib, they're defined here using the same - # names, and the compiled code objects of several sgmllib.SGMLParser - # methods are copied into _BaseHTMLProcessor so that they execute in - # feedparser's scope instead of sgmllib's scope. - charref = re.compile('&#(\d+|[xX][0-9a-fA-F]+);') - tagfind = re.compile('[a-zA-Z][-_.:a-zA-Z0-9]*') - attrfind = re.compile( - r'\s*([a-zA-Z_][-:.a-zA-Z_0-9]*)[$]?(\s*=\s*' - r'(\'[^\']*\'|"[^"]*"|[][\-a-zA-Z0-9./,:;+*%?!&$\(\)_#=~\'"@]*))?' - ) - - # Unfortunately, these must be copied over to prevent NameError exceptions - entityref = sgmllib.entityref - incomplete = sgmllib.incomplete - interesting = sgmllib.interesting - shorttag = sgmllib.shorttag - shorttagopen = sgmllib.shorttagopen - starttagopen = sgmllib.starttagopen - - class _EndBracketRegEx: - def __init__(self): - # Overriding the built-in sgmllib.endbracket regex allows the - # parser to find angle brackets embedded in element attributes. - self.endbracket = re.compile('''([^'"<>]|"[^"]*"(?=>|/|\s|\w+=)|'[^']*'(?=>|/|\s|\w+=))*(?=[<>])|.*?(?=[<>])''') - def search(self, target, index=0): - match = self.endbracket.match(target, index) - if match is not None: - # Returning a new object in the calling thread's context - # resolves a thread-safety. - return EndBracketMatch(match) - return None - class EndBracketMatch: - def __init__(self, match): - self.match = match - def start(self, n): - return self.match.end(n) - endbracket = _EndBracketRegEx() - - -# iconv_codec provides support for more character encodings. -# It's available from http://cjkpython.i18n.org/ -try: - import iconv_codec -except ImportError: - pass - -# chardet library auto-detects character encodings -# Download from http://chardet.feedparser.org/ -try: - import chardet -except ImportError: - chardet = None - -# ---------- don't touch these ---------- -class ThingsNobodyCaresAboutButMe(Exception): pass -class CharacterEncodingOverride(ThingsNobodyCaresAboutButMe): pass -class CharacterEncodingUnknown(ThingsNobodyCaresAboutButMe): pass -class NonXMLContentType(ThingsNobodyCaresAboutButMe): pass -class UndeclaredNamespace(Exception): pass - -SUPPORTED_VERSIONS = {'': u'unknown', - 'rss090': u'RSS 0.90', - 'rss091n': u'RSS 0.91 (Netscape)', - 'rss091u': u'RSS 0.91 (Userland)', - 'rss092': u'RSS 0.92', - 'rss093': u'RSS 0.93', - 'rss094': u'RSS 0.94', - 'rss20': u'RSS 2.0', - 'rss10': u'RSS 1.0', - 'rss': u'RSS (unknown version)', - 'atom01': u'Atom 0.1', - 'atom02': u'Atom 0.2', - 'atom03': u'Atom 0.3', - 'atom10': u'Atom 1.0', - 'atom': u'Atom (unknown version)', - 'cdf': u'CDF', - } - -class FeedParserDict(dict): - keymap = {'channel': 'feed', - 'items': 'entries', - 'guid': 'id', - 'date': 'updated', - 'date_parsed': 'updated_parsed', - 'description': ['summary', 'subtitle'], - 'description_detail': ['summary_detail', 'subtitle_detail'], - 'url': ['href'], - 'modified': 'updated', - 'modified_parsed': 'updated_parsed', - 'issued': 'published', - 'issued_parsed': 'published_parsed', - 'copyright': 'rights', - 'copyright_detail': 'rights_detail', - 'tagline': 'subtitle', - 'tagline_detail': 'subtitle_detail'} - def __getitem__(self, key): - ''' - :return: A :class:`FeedParserDict`. - ''' - if key == 'category': - try: - return dict.__getitem__(self, 'tags')[0]['term'] - except IndexError: - raise KeyError, "object doesn't have key 'category'" - elif key == 'enclosures': - norel = lambda link: FeedParserDict([(name,value) for (name,value) in link.items() if name!='rel']) - return [norel(link) for link in dict.__getitem__(self, 'links') if link['rel']==u'enclosure'] - elif key == 'license': - for link in dict.__getitem__(self, 'links'): - if link['rel']==u'license' and 'href' in link: - return link['href'] - elif key == 'updated': - # Temporarily help developers out by keeping the old - # broken behavior that was reported in issue 310. - # This fix was proposed in issue 328. - if not dict.__contains__(self, 'updated') and \ - dict.__contains__(self, 'published'): - warnings.warn("To avoid breaking existing software while " - "fixing issue 310, a temporary mapping has been created " - "from `updated` to `published` if `updated` doesn't " - "exist. This fallback will be removed in a future version " - "of feedparser.", DeprecationWarning) - return dict.__getitem__(self, 'published') - return dict.__getitem__(self, 'updated') - elif key == 'updated_parsed': - if not dict.__contains__(self, 'updated_parsed') and \ - dict.__contains__(self, 'published_parsed'): - warnings.warn("To avoid breaking existing software while " - "fixing issue 310, a temporary mapping has been created " - "from `updated_parsed` to `published_parsed` if " - "`updated_parsed` doesn't exist. This fallback will be " - "removed in a future version of feedparser.", - DeprecationWarning) - return dict.__getitem__(self, 'published_parsed') - return dict.__getitem__(self, 'updated_parsed') - else: - realkey = self.keymap.get(key, key) - if isinstance(realkey, list): - for k in realkey: - if dict.__contains__(self, k): - return dict.__getitem__(self, k) - elif dict.__contains__(self, realkey): - return dict.__getitem__(self, realkey) - return dict.__getitem__(self, key) - - def __contains__(self, key): - if key in ('updated', 'updated_parsed'): - # Temporarily help developers out by keeping the old - # broken behavior that was reported in issue 310. - # This fix was proposed in issue 328. - return dict.__contains__(self, key) - try: - self.__getitem__(key) - except KeyError: - return False - else: - return True - - has_key = __contains__ - - def get(self, key, default=None): - ''' - :return: A :class:`FeedParserDict`. - ''' - try: - return self.__getitem__(key) - except KeyError: - return default - - def __setitem__(self, key, value): - key = self.keymap.get(key, key) - if isinstance(key, list): - key = key[0] - return dict.__setitem__(self, key, value) - - def setdefault(self, key, value): - if key not in self: - self[key] = value - return value - return self[key] - - def __getattr__(self, key): - # __getattribute__() is called first; this will be called - # only if an attribute was not already found - try: - return self.__getitem__(key) - except KeyError: - raise AttributeError, "object has no attribute '%s'" % key - - def __hash__(self): - return id(self) - -_cp1252 = { - 128: unichr(8364), # euro sign - 130: unichr(8218), # single low-9 quotation mark - 131: unichr( 402), # latin small letter f with hook - 132: unichr(8222), # double low-9 quotation mark - 133: unichr(8230), # horizontal ellipsis - 134: unichr(8224), # dagger - 135: unichr(8225), # double dagger - 136: unichr( 710), # modifier letter circumflex accent - 137: unichr(8240), # per mille sign - 138: unichr( 352), # latin capital letter s with caron - 139: unichr(8249), # single left-pointing angle quotation mark - 140: unichr( 338), # latin capital ligature oe - 142: unichr( 381), # latin capital letter z with caron - 145: unichr(8216), # left single quotation mark - 146: unichr(8217), # right single quotation mark - 147: unichr(8220), # left double quotation mark - 148: unichr(8221), # right double quotation mark - 149: unichr(8226), # bullet - 150: unichr(8211), # en dash - 151: unichr(8212), # em dash - 152: unichr( 732), # small tilde - 153: unichr(8482), # trade mark sign - 154: unichr( 353), # latin small letter s with caron - 155: unichr(8250), # single right-pointing angle quotation mark - 156: unichr( 339), # latin small ligature oe - 158: unichr( 382), # latin small letter z with caron - 159: unichr( 376), # latin capital letter y with diaeresis -} - -_urifixer = re.compile('^([A-Za-z][A-Za-z0-9+-.]*://)(/*)(.*?)') -def _urljoin(base, uri): - uri = _urifixer.sub(r'\1\3', uri) - if not isinstance(uri, unicode): - uri = uri.decode('utf-8', 'ignore') - try: - uri = urlparse.urljoin(base, uri) - except ValueError: - uri = u'' - if not isinstance(uri, unicode): - return uri.decode('utf-8', 'ignore') - return uri - -class _FeedParserMixin: - namespaces = { - '': '', - 'http://backend.userland.com/rss': '', - 'http://blogs.law.harvard.edu/tech/rss': '', - 'http://purl.org/rss/1.0/': '', - 'http://my.netscape.com/rdf/simple/0.9/': '', - 'http://example.com/newformat#': '', - 'http://example.com/necho': '', - 'http://purl.org/echo/': '', - 'uri/of/echo/namespace#': '', - 'http://purl.org/pie/': '', - 'http://purl.org/atom/ns#': '', - 'http://www.w3.org/2005/Atom': '', - 'http://purl.org/rss/1.0/modules/rss091#': '', - - 'http://webns.net/mvcb/': 'admin', - 'http://purl.org/rss/1.0/modules/aggregation/': 'ag', - 'http://purl.org/rss/1.0/modules/annotate/': 'annotate', - 'http://media.tangent.org/rss/1.0/': 'audio', - 'http://backend.userland.com/blogChannelModule': 'blogChannel', - 'http://web.resource.org/cc/': 'cc', - 'http://backend.userland.com/creativeCommonsRssModule': 'creativeCommons', - 'http://purl.org/rss/1.0/modules/company': 'co', - 'http://purl.org/rss/1.0/modules/content/': 'content', - 'http://my.theinfo.org/changed/1.0/rss/': 'cp', - 'http://purl.org/dc/elements/1.1/': 'dc', - 'http://purl.org/dc/terms/': 'dcterms', - 'http://purl.org/rss/1.0/modules/email/': 'email', - 'http://purl.org/rss/1.0/modules/event/': 'ev', - 'http://rssnamespace.org/feedburner/ext/1.0': 'feedburner', - 'http://freshmeat.net/rss/fm/': 'fm', - 'http://xmlns.com/foaf/0.1/': 'foaf', - 'http://www.w3.org/2003/01/geo/wgs84_pos#': 'geo', - 'http://www.georss.org/georss': 'georss', - 'http://www.opengis.net/gml': 'gml', - 'http://postneo.com/icbm/': 'icbm', - 'http://purl.org/rss/1.0/modules/image/': 'image', - 'http://www.itunes.com/DTDs/PodCast-1.0.dtd': 'itunes', - 'http://example.com/DTDs/PodCast-1.0.dtd': 'itunes', - 'http://purl.org/rss/1.0/modules/link/': 'l', - 'http://search.yahoo.com/mrss': 'media', - # Version 1.1.2 of the Media RSS spec added the trailing slash on the namespace - 'http://search.yahoo.com/mrss/': 'media', - 'http://madskills.com/public/xml/rss/module/pingback/': 'pingback', - 'http://prismstandard.org/namespaces/1.2/basic/': 'prism', - 'http://www.w3.org/1999/02/22-rdf-syntax-ns#': 'rdf', - 'http://www.w3.org/2000/01/rdf-schema#': 'rdfs', - 'http://purl.org/rss/1.0/modules/reference/': 'ref', - 'http://purl.org/rss/1.0/modules/richequiv/': 'reqv', - 'http://purl.org/rss/1.0/modules/search/': 'search', - 'http://purl.org/rss/1.0/modules/slash/': 'slash', - 'http://schemas.xmlsoap.org/soap/envelope/': 'soap', - 'http://purl.org/rss/1.0/modules/servicestatus/': 'ss', - 'http://hacks.benhammersley.com/rss/streaming/': 'str', - 'http://purl.org/rss/1.0/modules/subscription/': 'sub', - 'http://purl.org/rss/1.0/modules/syndication/': 'sy', - 'http://schemas.pocketsoap.com/rss/myDescModule/': 'szf', - 'http://purl.org/rss/1.0/modules/taxonomy/': 'taxo', - 'http://purl.org/rss/1.0/modules/threading/': 'thr', - 'http://purl.org/rss/1.0/modules/textinput/': 'ti', - 'http://madskills.com/public/xml/rss/module/trackback/': 'trackback', - 'http://wellformedweb.org/commentAPI/': 'wfw', - 'http://purl.org/rss/1.0/modules/wiki/': 'wiki', - 'http://www.w3.org/1999/xhtml': 'xhtml', - 'http://www.w3.org/1999/xlink': 'xlink', - 'http://www.w3.org/XML/1998/namespace': 'xml', - 'http://podlove.org/simple-chapters': 'psc', - } - _matchnamespaces = {} - - can_be_relative_uri = set(['link', 'id', 'wfw_comment', 'wfw_commentrss', 'docs', 'url', 'href', 'comments', 'icon', 'logo']) - can_contain_relative_uris = set(['content', 'title', 'summary', 'info', 'tagline', 'subtitle', 'copyright', 'rights', 'description']) - can_contain_dangerous_markup = set(['content', 'title', 'summary', 'info', 'tagline', 'subtitle', 'copyright', 'rights', 'description']) - html_types = [u'text/html', u'application/xhtml+xml'] - - def __init__(self, baseuri=None, baselang=None, encoding=u'utf-8'): - if not self._matchnamespaces: - for k, v in self.namespaces.items(): - self._matchnamespaces[k.lower()] = v - self.feeddata = FeedParserDict() # feed-level data - self.encoding = encoding # character encoding - self.entries = [] # list of entry-level data - self.version = u'' # feed type/version, see SUPPORTED_VERSIONS - self.namespacesInUse = {} # dictionary of namespaces defined by the feed - - # the following are used internally to track state; - # this is really out of control and should be refactored - self.infeed = 0 - self.inentry = 0 - self.incontent = 0 - self.intextinput = 0 - self.inimage = 0 - self.inauthor = 0 - self.incontributor = 0 - self.inpublisher = 0 - self.insource = 0 - - # georss - self.ingeometry = 0 - - self.sourcedata = FeedParserDict() - self.contentparams = FeedParserDict() - self._summaryKey = None - self.namespacemap = {} - self.elementstack = [] - self.basestack = [] - self.langstack = [] - self.baseuri = baseuri or u'' - self.lang = baselang or None - self.svgOK = 0 - self.title_depth = -1 - self.depth = 0 - # psc_chapters_flag prevents multiple psc_chapters from being - # captured in a single entry or item. The transition states are - # None -> True -> False. psc_chapter elements will only be - # captured while it is True. - self.psc_chapters_flag = None - if baselang: - self.feeddata['language'] = baselang.replace('_','-') - - # A map of the following form: - # { - # object_that_value_is_set_on: { - # property_name: depth_of_node_property_was_extracted_from, - # other_property: depth_of_node_property_was_extracted_from, - # }, - # } - self.property_depth_map = {} - - def _normalize_attributes(self, kv): - k = kv[0].lower() - v = k in ('rel', 'type') and kv[1].lower() or kv[1] - # the sgml parser doesn't handle entities in attributes, nor - # does it pass the attribute values through as unicode, while - # strict xml parsers do -- account for this difference - if isinstance(self, _LooseFeedParser): - v = v.replace('&', '&') - if not isinstance(v, unicode): - v = v.decode('utf-8') - return (k, v) - - def unknown_starttag(self, tag, attrs): - # increment depth counter - self.depth += 1 - - # normalize attrs - attrs = map(self._normalize_attributes, attrs) - - # track xml:base and xml:lang - attrsD = dict(attrs) - baseuri = attrsD.get('xml:base', attrsD.get('base')) or self.baseuri - if not isinstance(baseuri, unicode): - baseuri = baseuri.decode(self.encoding, 'ignore') - # ensure that self.baseuri is always an absolute URI that - # uses a whitelisted URI scheme (e.g. not `javscript:`) - if self.baseuri: - self.baseuri = _makeSafeAbsoluteURI(self.baseuri, baseuri) or self.baseuri - else: - self.baseuri = _urljoin(self.baseuri, baseuri) - lang = attrsD.get('xml:lang', attrsD.get('lang')) - if lang == '': - # xml:lang could be explicitly set to '', we need to capture that - lang = None - elif lang is None: - # if no xml:lang is specified, use parent lang - lang = self.lang - if lang: - if tag in ('feed', 'rss', 'rdf:RDF'): - self.feeddata['language'] = lang.replace('_','-') - self.lang = lang - self.basestack.append(self.baseuri) - self.langstack.append(lang) - - # track namespaces - for prefix, uri in attrs: - if prefix.startswith('xmlns:'): - self.trackNamespace(prefix[6:], uri) - elif prefix == 'xmlns': - self.trackNamespace(None, uri) - - # track inline content - if self.incontent and not self.contentparams.get('type', u'xml').endswith(u'xml'): - if tag in ('xhtml:div', 'div'): - return # typepad does this 10/2007 - # element declared itself as escaped markup, but it isn't really - self.contentparams['type'] = u'application/xhtml+xml' - if self.incontent and self.contentparams.get('type') == u'application/xhtml+xml': - if tag.find(':') <> -1: - prefix, tag = tag.split(':', 1) - namespace = self.namespacesInUse.get(prefix, '') - if tag=='math' and namespace=='http://www.w3.org/1998/Math/MathML': - attrs.append(('xmlns',namespace)) - if tag=='svg' and namespace=='http://www.w3.org/2000/svg': - attrs.append(('xmlns',namespace)) - if tag == 'svg': - self.svgOK += 1 - return self.handle_data('<%s%s>' % (tag, self.strattrs(attrs)), escape=0) - - # match namespaces - if tag.find(':') <> -1: - prefix, suffix = tag.split(':', 1) - else: - prefix, suffix = '', tag - prefix = self.namespacemap.get(prefix, prefix) - if prefix: - prefix = prefix + '_' - - # special hack for better tracking of empty textinput/image elements in illformed feeds - if (not prefix) and tag not in ('title', 'link', 'description', 'name'): - self.intextinput = 0 - if (not prefix) and tag not in ('title', 'link', 'description', 'url', 'href', 'width', 'height'): - self.inimage = 0 - - # call special handler (if defined) or default handler - methodname = '_start_' + prefix + suffix - try: - method = getattr(self, methodname) - return method(attrsD) - except AttributeError: - # Since there's no handler or something has gone wrong we explicitly add the element and its attributes - unknown_tag = prefix + suffix - if len(attrsD) == 0: - # No attributes so merge it into the encosing dictionary - return self.push(unknown_tag, 1) - else: - # Has attributes so create it in its own dictionary - context = self._getContext() - context[unknown_tag] = attrsD - - def unknown_endtag(self, tag): - # match namespaces - if tag.find(':') <> -1: - prefix, suffix = tag.split(':', 1) - else: - prefix, suffix = '', tag - prefix = self.namespacemap.get(prefix, prefix) - if prefix: - prefix = prefix + '_' - if suffix == 'svg' and self.svgOK: - self.svgOK -= 1 - - # call special handler (if defined) or default handler - methodname = '_end_' + prefix + suffix - try: - if self.svgOK: - raise AttributeError() - method = getattr(self, methodname) - method() - except AttributeError: - self.pop(prefix + suffix) - - # track inline content - if self.incontent and not self.contentparams.get('type', u'xml').endswith(u'xml'): - # element declared itself as escaped markup, but it isn't really - if tag in ('xhtml:div', 'div'): - return # typepad does this 10/2007 - self.contentparams['type'] = u'application/xhtml+xml' - if self.incontent and self.contentparams.get('type') == u'application/xhtml+xml': - tag = tag.split(':')[-1] - self.handle_data('' % tag, escape=0) - - # track xml:base and xml:lang going out of scope - if self.basestack: - self.basestack.pop() - if self.basestack and self.basestack[-1]: - self.baseuri = self.basestack[-1] - if self.langstack: - self.langstack.pop() - if self.langstack: # and (self.langstack[-1] is not None): - self.lang = self.langstack[-1] - - self.depth -= 1 - - def handle_charref(self, ref): - # called for each character reference, e.g. for ' ', ref will be '160' - if not self.elementstack: - return - ref = ref.lower() - if ref in ('34', '38', '39', '60', '62', 'x22', 'x26', 'x27', 'x3c', 'x3e'): - text = '&#%s;' % ref - else: - if ref[0] == 'x': - c = int(ref[1:], 16) - else: - c = int(ref) - text = unichr(c).encode('utf-8') - self.elementstack[-1][2].append(text) - - def handle_entityref(self, ref): - # called for each entity reference, e.g. for '©', ref will be 'copy' - if not self.elementstack: - return - if ref in ('lt', 'gt', 'quot', 'amp', 'apos'): - text = '&%s;' % ref - elif ref in self.entities: - text = self.entities[ref] - if text.startswith('&#') and text.endswith(';'): - return self.handle_entityref(text) - else: - try: - name2codepoint[ref] - except KeyError: - text = '&%s;' % ref - else: - text = unichr(name2codepoint[ref]).encode('utf-8') - self.elementstack[-1][2].append(text) - - def handle_data(self, text, escape=1): - # called for each block of plain text, i.e. outside of any tag and - # not containing any character or entity references - if not self.elementstack: - return - if escape and self.contentparams.get('type') == u'application/xhtml+xml': - text = _xmlescape(text) - self.elementstack[-1][2].append(text) - - def handle_comment(self, text): - # called for each comment, e.g. - pass - - def handle_pi(self, text): - # called for each processing instruction, e.g. - pass - - def handle_decl(self, text): - pass - - def parse_declaration(self, i): - # override internal declaration handler to handle CDATA blocks - if self.rawdata[i:i+9] == '', i) - if k == -1: - # CDATA block began but didn't finish - k = len(self.rawdata) - return k - self.handle_data(_xmlescape(self.rawdata[i+9:k]), 0) - return k+3 - else: - k = self.rawdata.find('>', i) - if k >= 0: - return k+1 - else: - # We have an incomplete CDATA block. - return k - - def mapContentType(self, contentType): - contentType = contentType.lower() - if contentType == 'text' or contentType == 'plain': - contentType = u'text/plain' - elif contentType == 'html': - contentType = u'text/html' - elif contentType == 'xhtml': - contentType = u'application/xhtml+xml' - return contentType - - def trackNamespace(self, prefix, uri): - loweruri = uri.lower() - if not self.version: - if (prefix, loweruri) == (None, 'http://my.netscape.com/rdf/simple/0.9/'): - self.version = u'rss090' - elif loweruri == 'http://purl.org/rss/1.0/': - self.version = u'rss10' - elif loweruri == 'http://www.w3.org/2005/atom': - self.version = u'atom10' - if loweruri.find(u'backend.userland.com/rss') <> -1: - # match any backend.userland.com namespace - uri = u'http://backend.userland.com/rss' - loweruri = uri - if loweruri in self._matchnamespaces: - self.namespacemap[prefix] = self._matchnamespaces[loweruri] - self.namespacesInUse[self._matchnamespaces[loweruri]] = uri - else: - self.namespacesInUse[prefix or ''] = uri - - def resolveURI(self, uri): - return _urljoin(self.baseuri or u'', uri) - - def decodeEntities(self, element, data): - return data - - def strattrs(self, attrs): - return ''.join([' %s="%s"' % (t[0],_xmlescape(t[1],{'"':'"'})) for t in attrs]) - - def push(self, element, expectingText): - self.elementstack.append([element, expectingText, []]) - - def pop(self, element, stripWhitespace=1): - if not self.elementstack: - return - if self.elementstack[-1][0] != element: - return - - element, expectingText, pieces = self.elementstack.pop() - - if self.version == u'atom10' and self.contentparams.get('type', u'text') == u'application/xhtml+xml': - # remove enclosing child element, but only if it is a
and - # only if all the remaining content is nested underneath it. - # This means that the divs would be retained in the following: - #
foo
bar
- while pieces and len(pieces)>1 and not pieces[-1].strip(): - del pieces[-1] - while pieces and len(pieces)>1 and not pieces[0].strip(): - del pieces[0] - if pieces and (pieces[0] == '
' or pieces[0].startswith('
': - depth = 0 - for piece in pieces[:-1]: - if piece.startswith(''): - depth += 1 - else: - pieces = pieces[1:-1] - - # Ensure each piece is a str for Python 3 - for (i, v) in enumerate(pieces): - if not isinstance(v, unicode): - pieces[i] = v.decode('utf-8') - - output = u''.join(pieces) - if stripWhitespace: - output = output.strip() - if not expectingText: - return output - - # decode base64 content - if base64 and self.contentparams.get('base64', 0): - try: - output = _base64decode(output) - except binascii.Error: - pass - except binascii.Incomplete: - pass - except TypeError: - # In Python 3, base64 takes and outputs bytes, not str - # This may not be the most correct way to accomplish this - output = _base64decode(output.encode('utf-8')).decode('utf-8') - - # resolve relative URIs - if (element in self.can_be_relative_uri) and output: - # do not resolve guid elements with isPermalink="false" - if not element == 'id' or self.guidislink: - output = self.resolveURI(output) - - # decode entities within embedded markup - if not self.contentparams.get('base64', 0): - output = self.decodeEntities(element, output) - - # some feed formats require consumers to guess - # whether the content is html or plain text - if not self.version.startswith(u'atom') and self.contentparams.get('type') == u'text/plain': - if self.lookslikehtml(output): - self.contentparams['type'] = u'text/html' - - # remove temporary cruft from contentparams - try: - del self.contentparams['mode'] - except KeyError: - pass - try: - del self.contentparams['base64'] - except KeyError: - pass - - is_htmlish = self.mapContentType(self.contentparams.get('type', u'text/html')) in self.html_types - # resolve relative URIs within embedded markup - if is_htmlish and RESOLVE_RELATIVE_URIS: - if element in self.can_contain_relative_uris: - output = _resolveRelativeURIs(output, self.baseuri, self.encoding, self.contentparams.get('type', u'text/html')) - - # sanitize embedded markup - if is_htmlish and SANITIZE_HTML: - if element in self.can_contain_dangerous_markup: - output = _sanitizeHTML(output, self.encoding, self.contentparams.get('type', u'text/html')) - - if self.encoding and not isinstance(output, unicode): - output = output.decode(self.encoding, 'ignore') - - # address common error where people take data that is already - # utf-8, presume that it is iso-8859-1, and re-encode it. - if self.encoding in (u'utf-8', u'utf-8_INVALID_PYTHON_3') and isinstance(output, unicode): - try: - output = output.encode('iso-8859-1').decode('utf-8') - except (UnicodeEncodeError, UnicodeDecodeError): - pass - - # map win-1252 extensions to the proper code points - if isinstance(output, unicode): - output = output.translate(_cp1252) - - # categories/tags/keywords/whatever are handled in _end_category or _end_tags or _end_itunes_keywords - if element in ('category', 'tags', 'itunes_keywords'): - return output - - if element == 'title' and -1 < self.title_depth <= self.depth: - return output - - # store output in appropriate place(s) - if self.inentry and not self.insource: - if element == 'content': - self.entries[-1].setdefault(element, []) - contentparams = copy.deepcopy(self.contentparams) - contentparams['value'] = output - self.entries[-1][element].append(contentparams) - elif element == 'link': - if not self.inimage: - # query variables in urls in link elements are improperly - # converted from `?a=1&b=2` to `?a=1&b;=2` as if they're - # unhandled character references. fix this special case. - output = output.replace('&', '&') - output = re.sub("&([A-Za-z0-9_]+);", "&\g<1>", output) - self.entries[-1][element] = output - if output: - self.entries[-1]['links'][-1]['href'] = output - else: - if element == 'description': - element = 'summary' - old_value_depth = self.property_depth_map.setdefault(self.entries[-1], {}).get(element) - if old_value_depth is None or self.depth <= old_value_depth: - self.property_depth_map[self.entries[-1]][element] = self.depth - self.entries[-1][element] = output - if self.incontent: - contentparams = copy.deepcopy(self.contentparams) - contentparams['value'] = output - self.entries[-1][element + '_detail'] = contentparams - elif (self.infeed or self.insource):# and (not self.intextinput) and (not self.inimage): - context = self._getContext() - if element == 'description': - element = 'subtitle' - context[element] = output - if element == 'link': - # fix query variables; see above for the explanation - output = re.sub("&([A-Za-z0-9_]+);", "&\g<1>", output) - context[element] = output - context['links'][-1]['href'] = output - elif self.incontent: - contentparams = copy.deepcopy(self.contentparams) - contentparams['value'] = output - context[element + '_detail'] = contentparams - return output - - def pushContent(self, tag, attrsD, defaultContentType, expectingText): - self.incontent += 1 - if self.lang: - self.lang=self.lang.replace('_','-') - self.contentparams = FeedParserDict({ - 'type': self.mapContentType(attrsD.get('type', defaultContentType)), - 'language': self.lang, - 'base': self.baseuri}) - self.contentparams['base64'] = self._isBase64(attrsD, self.contentparams) - self.push(tag, expectingText) - - def popContent(self, tag): - value = self.pop(tag) - self.incontent -= 1 - self.contentparams.clear() - return value - - # a number of elements in a number of RSS variants are nominally plain - # text, but this is routinely ignored. This is an attempt to detect - # the most common cases. As false positives often result in silent - # data loss, this function errs on the conservative side. - @staticmethod - def lookslikehtml(s): - # must have a close tag or an entity reference to qualify - if not (re.search(r'',s) or re.search("&#?\w+;",s)): - return - - # all tags must be in a restricted subset of valid HTML tags - if filter(lambda t: t.lower() not in _HTMLSanitizer.acceptable_elements, - re.findall(r' -1: - prefix = name[:colonpos] - suffix = name[colonpos+1:] - prefix = self.namespacemap.get(prefix, prefix) - name = prefix + ':' + suffix - return name - - def _getAttribute(self, attrsD, name): - return attrsD.get(self._mapToStandardPrefix(name)) - - def _isBase64(self, attrsD, contentparams): - if attrsD.get('mode', '') == 'base64': - return 1 - if self.contentparams['type'].startswith(u'text/'): - return 0 - if self.contentparams['type'].endswith(u'+xml'): - return 0 - if self.contentparams['type'].endswith(u'/xml'): - return 0 - return 1 - - def _itsAnHrefDamnIt(self, attrsD): - href = attrsD.get('url', attrsD.get('uri', attrsD.get('href', None))) - if href: - try: - del attrsD['url'] - except KeyError: - pass - try: - del attrsD['uri'] - except KeyError: - pass - attrsD['href'] = href - return attrsD - - def _save(self, key, value, overwrite=False): - context = self._getContext() - if overwrite: - context[key] = value - else: - context.setdefault(key, value) - - def _start_rss(self, attrsD): - versionmap = {'0.91': u'rss091u', - '0.92': u'rss092', - '0.93': u'rss093', - '0.94': u'rss094'} - #If we're here then this is an RSS feed. - #If we don't have a version or have a version that starts with something - #other than RSS then there's been a mistake. Correct it. - if not self.version or not self.version.startswith(u'rss'): - attr_version = attrsD.get('version', '') - version = versionmap.get(attr_version) - if version: - self.version = version - elif attr_version.startswith('2.'): - self.version = u'rss20' - else: - self.version = u'rss' - - def _start_channel(self, attrsD): - self.infeed = 1 - self._cdf_common(attrsD) - - def _cdf_common(self, attrsD): - if 'lastmod' in attrsD: - self._start_modified({}) - self.elementstack[-1][-1] = attrsD['lastmod'] - self._end_modified() - if 'href' in attrsD: - self._start_link({}) - self.elementstack[-1][-1] = attrsD['href'] - self._end_link() - - def _start_feed(self, attrsD): - self.infeed = 1 - versionmap = {'0.1': u'atom01', - '0.2': u'atom02', - '0.3': u'atom03'} - if not self.version: - attr_version = attrsD.get('version') - version = versionmap.get(attr_version) - if version: - self.version = version - else: - self.version = u'atom' - - def _end_channel(self): - self.infeed = 0 - _end_feed = _end_channel - - def _start_image(self, attrsD): - context = self._getContext() - if not self.inentry: - context.setdefault('image', FeedParserDict()) - self.inimage = 1 - self.title_depth = -1 - self.push('image', 0) - - def _end_image(self): - self.pop('image') - self.inimage = 0 - - def _start_textinput(self, attrsD): - context = self._getContext() - context.setdefault('textinput', FeedParserDict()) - self.intextinput = 1 - self.title_depth = -1 - self.push('textinput', 0) - _start_textInput = _start_textinput - - def _end_textinput(self): - self.pop('textinput') - self.intextinput = 0 - _end_textInput = _end_textinput - - def _start_author(self, attrsD): - self.inauthor = 1 - self.push('author', 1) - # Append a new FeedParserDict when expecting an author - context = self._getContext() - context.setdefault('authors', []) - context['authors'].append(FeedParserDict()) - _start_managingeditor = _start_author - _start_dc_author = _start_author - _start_dc_creator = _start_author - _start_itunes_author = _start_author - - def _end_author(self): - self.pop('author') - self.inauthor = 0 - self._sync_author_detail() - _end_managingeditor = _end_author - _end_dc_author = _end_author - _end_dc_creator = _end_author - _end_itunes_author = _end_author - - def _start_itunes_owner(self, attrsD): - self.inpublisher = 1 - self.push('publisher', 0) - - def _end_itunes_owner(self): - self.pop('publisher') - self.inpublisher = 0 - self._sync_author_detail('publisher') - - def _start_contributor(self, attrsD): - self.incontributor = 1 - context = self._getContext() - context.setdefault('contributors', []) - context['contributors'].append(FeedParserDict()) - self.push('contributor', 0) - - def _end_contributor(self): - self.pop('contributor') - self.incontributor = 0 - - def _start_dc_contributor(self, attrsD): - self.incontributor = 1 - context = self._getContext() - context.setdefault('contributors', []) - context['contributors'].append(FeedParserDict()) - self.push('name', 0) - - def _end_dc_contributor(self): - self._end_name() - self.incontributor = 0 - - def _start_name(self, attrsD): - self.push('name', 0) - _start_itunes_name = _start_name - - def _end_name(self): - value = self.pop('name') - if self.inpublisher: - self._save_author('name', value, 'publisher') - elif self.inauthor: - self._save_author('name', value) - elif self.incontributor: - self._save_contributor('name', value) - elif self.intextinput: - context = self._getContext() - context['name'] = value - _end_itunes_name = _end_name - - def _start_width(self, attrsD): - self.push('width', 0) - - def _end_width(self): - value = self.pop('width') - try: - value = int(value) - except ValueError: - value = 0 - if self.inimage: - context = self._getContext() - context['width'] = value - - def _start_height(self, attrsD): - self.push('height', 0) - - def _end_height(self): - value = self.pop('height') - try: - value = int(value) - except ValueError: - value = 0 - if self.inimage: - context = self._getContext() - context['height'] = value - - def _start_url(self, attrsD): - self.push('href', 1) - _start_homepage = _start_url - _start_uri = _start_url - - def _end_url(self): - value = self.pop('href') - if self.inauthor: - self._save_author('href', value) - elif self.incontributor: - self._save_contributor('href', value) - _end_homepage = _end_url - _end_uri = _end_url - - def _start_email(self, attrsD): - self.push('email', 0) - _start_itunes_email = _start_email - - def _end_email(self): - value = self.pop('email') - if self.inpublisher: - self._save_author('email', value, 'publisher') - elif self.inauthor: - self._save_author('email', value) - elif self.incontributor: - self._save_contributor('email', value) - _end_itunes_email = _end_email - - def _getContext(self): - if self.insource: - context = self.sourcedata - elif self.inimage and 'image' in self.feeddata: - context = self.feeddata['image'] - elif self.intextinput: - context = self.feeddata['textinput'] - elif self.inentry: - context = self.entries[-1] - else: - context = self.feeddata - return context - - def _save_author(self, key, value, prefix='author'): - context = self._getContext() - context.setdefault(prefix + '_detail', FeedParserDict()) - context[prefix + '_detail'][key] = value - self._sync_author_detail() - context.setdefault('authors', [FeedParserDict()]) - context['authors'][-1][key] = value - - def _save_contributor(self, key, value): - context = self._getContext() - context.setdefault('contributors', [FeedParserDict()]) - context['contributors'][-1][key] = value - - def _sync_author_detail(self, key='author'): - context = self._getContext() - detail = context.get('%ss' % key, [FeedParserDict()])[-1] - if detail: - name = detail.get('name') - email = detail.get('email') - if name and email: - context[key] = u'%s (%s)' % (name, email) - elif name: - context[key] = name - elif email: - context[key] = email - else: - author, email = context.get(key), None - if not author: - return - emailmatch = re.search(ur'''(([a-zA-Z0-9\_\-\.\+]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?))(\?subject=\S+)?''', author) - if emailmatch: - email = emailmatch.group(0) - # probably a better way to do the following, but it passes all the tests - author = author.replace(email, u'') - author = author.replace(u'()', u'') - author = author.replace(u'<>', u'') - author = author.replace(u'<>', u'') - author = author.strip() - if author and (author[0] == u'('): - author = author[1:] - if author and (author[-1] == u')'): - author = author[:-1] - author = author.strip() - if author or email: - context.setdefault('%s_detail' % key, detail) - if author: - detail['name'] = author - if email: - detail['email'] = email - - def _start_subtitle(self, attrsD): - self.pushContent('subtitle', attrsD, u'text/plain', 1) - _start_tagline = _start_subtitle - _start_itunes_subtitle = _start_subtitle - - def _end_subtitle(self): - self.popContent('subtitle') - _end_tagline = _end_subtitle - _end_itunes_subtitle = _end_subtitle - - def _start_rights(self, attrsD): - self.pushContent('rights', attrsD, u'text/plain', 1) - _start_dc_rights = _start_rights - _start_copyright = _start_rights - - def _end_rights(self): - self.popContent('rights') - _end_dc_rights = _end_rights - _end_copyright = _end_rights - - def _start_item(self, attrsD): - self.entries.append(FeedParserDict()) - self.push('item', 0) - self.inentry = 1 - self.guidislink = 0 - self.title_depth = -1 - self.psc_chapters_flag = None - id = self._getAttribute(attrsD, 'rdf:about') - if id: - context = self._getContext() - context['id'] = id - self._cdf_common(attrsD) - _start_entry = _start_item - - def _end_item(self): - self.pop('item') - self.inentry = 0 - _end_entry = _end_item - - def _start_dc_language(self, attrsD): - self.push('language', 1) - _start_language = _start_dc_language - - def _end_dc_language(self): - self.lang = self.pop('language') - _end_language = _end_dc_language - - def _start_dc_publisher(self, attrsD): - self.push('publisher', 1) - _start_webmaster = _start_dc_publisher - - def _end_dc_publisher(self): - self.pop('publisher') - self._sync_author_detail('publisher') - _end_webmaster = _end_dc_publisher - - def _start_dcterms_valid(self, attrsD): - self.push('validity', 1) - - def _end_dcterms_valid(self): - for validity_detail in self.pop('validity').split(';'): - if '=' in validity_detail: - key, value = validity_detail.split('=', 1) - if key == 'start': - self._save('validity_start', value, overwrite=True) - self._save('validity_start_parsed', _parse_date(value), overwrite=True) - elif key == 'end': - self._save('validity_end', value, overwrite=True) - self._save('validity_end_parsed', _parse_date(value), overwrite=True) - - def _start_published(self, attrsD): - self.push('published', 1) - _start_dcterms_issued = _start_published - _start_issued = _start_published - _start_pubdate = _start_published - - def _end_published(self): - value = self.pop('published') - self._save('published_parsed', _parse_date(value), overwrite=True) - _end_dcterms_issued = _end_published - _end_issued = _end_published - _end_pubdate = _end_published - - def _start_updated(self, attrsD): - self.push('updated', 1) - _start_modified = _start_updated - _start_dcterms_modified = _start_updated - _start_dc_date = _start_updated - _start_lastbuilddate = _start_updated - - def _end_updated(self): - value = self.pop('updated') - parsed_value = _parse_date(value) - self._save('updated_parsed', parsed_value, overwrite=True) - _end_modified = _end_updated - _end_dcterms_modified = _end_updated - _end_dc_date = _end_updated - _end_lastbuilddate = _end_updated - - def _start_created(self, attrsD): - self.push('created', 1) - _start_dcterms_created = _start_created - - def _end_created(self): - value = self.pop('created') - self._save('created_parsed', _parse_date(value), overwrite=True) - _end_dcterms_created = _end_created - - def _start_expirationdate(self, attrsD): - self.push('expired', 1) - - def _end_expirationdate(self): - self._save('expired_parsed', _parse_date(self.pop('expired')), overwrite=True) - - # geospatial location, or "where", from georss.org - - def _start_georssgeom(self, attrsD): - self.push('geometry', 0) - context = self._getContext() - context['where'] = FeedParserDict() - - _start_georss_point = _start_georssgeom - _start_georss_line = _start_georssgeom - _start_georss_polygon = _start_georssgeom - _start_georss_box = _start_georssgeom - - def _save_where(self, geometry): - context = self._getContext() - context['where'].update(geometry) - - def _end_georss_point(self): - geometry = _parse_georss_point(self.pop('geometry')) - if geometry: - self._save_where(geometry) - - def _end_georss_line(self): - geometry = _parse_georss_line(self.pop('geometry')) - if geometry: - self._save_where(geometry) - - def _end_georss_polygon(self): - this = self.pop('geometry') - geometry = _parse_georss_polygon(this) - if geometry: - self._save_where(geometry) - - def _end_georss_box(self): - geometry = _parse_georss_box(self.pop('geometry')) - if geometry: - self._save_where(geometry) - - def _start_where(self, attrsD): - self.push('where', 0) - context = self._getContext() - context['where'] = FeedParserDict() - _start_georss_where = _start_where - - def _parse_srs_attrs(self, attrsD): - srsName = attrsD.get('srsname') - try: - srsDimension = int(attrsD.get('srsdimension', '2')) - except ValueError: - srsDimension = 2 - context = self._getContext() - context['where']['srsName'] = srsName - context['where']['srsDimension'] = srsDimension - - def _start_gml_point(self, attrsD): - self._parse_srs_attrs(attrsD) - self.ingeometry = 1 - self.push('geometry', 0) - - def _start_gml_linestring(self, attrsD): - self._parse_srs_attrs(attrsD) - self.ingeometry = 'linestring' - self.push('geometry', 0) - - def _start_gml_polygon(self, attrsD): - self._parse_srs_attrs(attrsD) - self.push('geometry', 0) - - def _start_gml_exterior(self, attrsD): - self.push('geometry', 0) - - def _start_gml_linearring(self, attrsD): - self.ingeometry = 'polygon' - self.push('geometry', 0) - - def _start_gml_pos(self, attrsD): - self.push('pos', 0) - - def _end_gml_pos(self): - this = self.pop('pos') - context = self._getContext() - srsName = context['where'].get('srsName') - srsDimension = context['where'].get('srsDimension', 2) - swap = True - if srsName and "EPSG" in srsName: - epsg = int(srsName.split(":")[-1]) - swap = bool(epsg in _geogCS) - geometry = _parse_georss_point(this, swap=swap, dims=srsDimension) - if geometry: - self._save_where(geometry) - - def _start_gml_poslist(self, attrsD): - self.push('pos', 0) - - def _end_gml_poslist(self): - this = self.pop('pos') - context = self._getContext() - srsName = context['where'].get('srsName') - srsDimension = context['where'].get('srsDimension', 2) - swap = True - if srsName and "EPSG" in srsName: - epsg = int(srsName.split(":")[-1]) - swap = bool(epsg in _geogCS) - geometry = _parse_poslist( - this, self.ingeometry, swap=swap, dims=srsDimension) - if geometry: - self._save_where(geometry) - - def _end_geom(self): - self.ingeometry = 0 - self.pop('geometry') - _end_gml_point = _end_geom - _end_gml_linestring = _end_geom - _end_gml_linearring = _end_geom - _end_gml_exterior = _end_geom - _end_gml_polygon = _end_geom - - def _end_where(self): - self.pop('where') - _end_georss_where = _end_where - - # end geospatial - - def _start_cc_license(self, attrsD): - context = self._getContext() - value = self._getAttribute(attrsD, 'rdf:resource') - attrsD = FeedParserDict() - attrsD['rel'] = u'license' - if value: - attrsD['href']=value - context.setdefault('links', []).append(attrsD) - - def _start_creativecommons_license(self, attrsD): - self.push('license', 1) - _start_creativeCommons_license = _start_creativecommons_license - - def _end_creativecommons_license(self): - value = self.pop('license') - context = self._getContext() - attrsD = FeedParserDict() - attrsD['rel'] = u'license' - if value: - attrsD['href'] = value - context.setdefault('links', []).append(attrsD) - del context['license'] - _end_creativeCommons_license = _end_creativecommons_license - - def _addTag(self, term, scheme, label): - context = self._getContext() - tags = context.setdefault('tags', []) - if (not term) and (not scheme) and (not label): - return - value = FeedParserDict(term=term, scheme=scheme, label=label) - if value not in tags: - tags.append(value) - - def _start_tags(self, attrsD): - # This is a completely-made up element. Its semantics are determined - # only by a single feed that precipitated bug report 392 on Google Code. - # In short, this is junk code. - self.push('tags', 1) - - def _end_tags(self): - for term in self.pop('tags').split(','): - self._addTag(term.strip(), None, None) - - def _start_category(self, attrsD): - term = attrsD.get('term') - scheme = attrsD.get('scheme', attrsD.get('domain')) - label = attrsD.get('label') - self._addTag(term, scheme, label) - self.push('category', 1) - _start_dc_subject = _start_category - _start_keywords = _start_category - - def _start_media_category(self, attrsD): - attrsD.setdefault('scheme', u'http://search.yahoo.com/mrss/category_schema') - self._start_category(attrsD) - - def _end_itunes_keywords(self): - for term in self.pop('itunes_keywords').split(','): - if term.strip(): - self._addTag(term.strip(), u'http://www.itunes.com/', None) - - def _end_media_keywords(self): - for term in self.pop('media_keywords').split(','): - if term.strip(): - self._addTag(term.strip(), None, None) - - def _start_itunes_category(self, attrsD): - self._addTag(attrsD.get('text'), u'http://www.itunes.com/', None) - self.push('category', 1) - - def _end_category(self): - value = self.pop('category') - if not value: - return - context = self._getContext() - tags = context['tags'] - if value and len(tags) and not tags[-1]['term']: - tags[-1]['term'] = value - else: - self._addTag(value, None, None) - _end_dc_subject = _end_category - _end_keywords = _end_category - _end_itunes_category = _end_category - _end_media_category = _end_category - - def _start_cloud(self, attrsD): - self._getContext()['cloud'] = FeedParserDict(attrsD) - - def _start_link(self, attrsD): - attrsD.setdefault('rel', u'alternate') - if attrsD['rel'] == u'self': - attrsD.setdefault('type', u'application/atom+xml') - else: - attrsD.setdefault('type', u'text/html') - context = self._getContext() - attrsD = self._itsAnHrefDamnIt(attrsD) - if 'href' in attrsD: - attrsD['href'] = self.resolveURI(attrsD['href']) - expectingText = self.infeed or self.inentry or self.insource - context.setdefault('links', []) - if not (self.inentry and self.inimage): - context['links'].append(FeedParserDict(attrsD)) - if 'href' in attrsD: - expectingText = 0 - if (attrsD.get('rel') == u'alternate') and (self.mapContentType(attrsD.get('type')) in self.html_types): - context['link'] = attrsD['href'] - else: - self.push('link', expectingText) - - def _end_link(self): - value = self.pop('link') - - def _start_guid(self, attrsD): - self.guidislink = (attrsD.get('ispermalink', 'true') == 'true') - self.push('id', 1) - _start_id = _start_guid - - def _end_guid(self): - value = self.pop('id') - self._save('guidislink', self.guidislink and 'link' not in self._getContext()) - if self.guidislink: - # guid acts as link, but only if 'ispermalink' is not present or is 'true', - # and only if the item doesn't already have a link element - self._save('link', value) - _end_id = _end_guid - - def _start_title(self, attrsD): - if self.svgOK: - return self.unknown_starttag('title', attrsD.items()) - self.pushContent('title', attrsD, u'text/plain', self.infeed or self.inentry or self.insource) - _start_dc_title = _start_title - _start_media_title = _start_title - - def _end_title(self): - if self.svgOK: - return - value = self.popContent('title') - if not value: - return - self.title_depth = self.depth - _end_dc_title = _end_title - - def _end_media_title(self): - title_depth = self.title_depth - self._end_title() - self.title_depth = title_depth - - def _start_description(self, attrsD): - context = self._getContext() - if 'summary' in context: - self._summaryKey = 'content' - self._start_content(attrsD) - else: - self.pushContent('description', attrsD, u'text/html', self.infeed or self.inentry or self.insource) - _start_dc_description = _start_description - _start_media_description = _start_description - - def _start_abstract(self, attrsD): - self.pushContent('description', attrsD, u'text/plain', self.infeed or self.inentry or self.insource) - - def _end_description(self): - if self._summaryKey == 'content': - self._end_content() - else: - value = self.popContent('description') - self._summaryKey = None - _end_abstract = _end_description - _end_dc_description = _end_description - _end_media_description = _end_description - - def _start_info(self, attrsD): - self.pushContent('info', attrsD, u'text/plain', 1) - _start_feedburner_browserfriendly = _start_info - - def _end_info(self): - self.popContent('info') - _end_feedburner_browserfriendly = _end_info - - def _start_generator(self, attrsD): - if attrsD: - attrsD = self._itsAnHrefDamnIt(attrsD) - if 'href' in attrsD: - attrsD['href'] = self.resolveURI(attrsD['href']) - self._getContext()['generator_detail'] = FeedParserDict(attrsD) - self.push('generator', 1) - - def _end_generator(self): - value = self.pop('generator') - context = self._getContext() - if 'generator_detail' in context: - context['generator_detail']['name'] = value - - def _start_admin_generatoragent(self, attrsD): - self.push('generator', 1) - value = self._getAttribute(attrsD, 'rdf:resource') - if value: - self.elementstack[-1][2].append(value) - self.pop('generator') - self._getContext()['generator_detail'] = FeedParserDict({'href': value}) - - def _start_admin_errorreportsto(self, attrsD): - self.push('errorreportsto', 1) - value = self._getAttribute(attrsD, 'rdf:resource') - if value: - self.elementstack[-1][2].append(value) - self.pop('errorreportsto') - - def _start_summary(self, attrsD): - context = self._getContext() - if 'summary' in context: - self._summaryKey = 'content' - self._start_content(attrsD) - else: - self._summaryKey = 'summary' - self.pushContent(self._summaryKey, attrsD, u'text/plain', 1) - _start_itunes_summary = _start_summary - - def _end_summary(self): - if self._summaryKey == 'content': - self._end_content() - else: - self.popContent(self._summaryKey or 'summary') - self._summaryKey = None - _end_itunes_summary = _end_summary - - def _start_enclosure(self, attrsD): - attrsD = self._itsAnHrefDamnIt(attrsD) - context = self._getContext() - attrsD['rel'] = u'enclosure' - context.setdefault('links', []).append(FeedParserDict(attrsD)) - - def _start_source(self, attrsD): - if 'url' in attrsD: - # This means that we're processing a source element from an RSS 2.0 feed - self.sourcedata['href'] = attrsD[u'url'] - self.push('source', 1) - self.insource = 1 - self.title_depth = -1 - - def _end_source(self): - self.insource = 0 - value = self.pop('source') - if value: - self.sourcedata['title'] = value - self._getContext()['source'] = copy.deepcopy(self.sourcedata) - self.sourcedata.clear() - - def _start_content(self, attrsD): - self.pushContent('content', attrsD, u'text/plain', 1) - src = attrsD.get('src') - if src: - self.contentparams['src'] = src - self.push('content', 1) - - def _start_body(self, attrsD): - self.pushContent('content', attrsD, u'application/xhtml+xml', 1) - _start_xhtml_body = _start_body - - def _start_content_encoded(self, attrsD): - self.pushContent('content', attrsD, u'text/html', 1) - _start_fullitem = _start_content_encoded - - def _end_content(self): - copyToSummary = self.mapContentType(self.contentparams.get('type')) in ([u'text/plain'] + self.html_types) - value = self.popContent('content') - if copyToSummary: - self._save('summary', value) - - _end_body = _end_content - _end_xhtml_body = _end_content - _end_content_encoded = _end_content - _end_fullitem = _end_content - - def _start_itunes_image(self, attrsD): - self.push('itunes_image', 0) - if attrsD.get('href'): - self._getContext()['image'] = FeedParserDict({'href': attrsD.get('href')}) - elif attrsD.get('url'): - self._getContext()['image'] = FeedParserDict({'href': attrsD.get('url')}) - _start_itunes_link = _start_itunes_image - - def _end_itunes_block(self): - value = self.pop('itunes_block', 0) - self._getContext()['itunes_block'] = (value == 'yes') and 1 or 0 - - def _end_itunes_explicit(self): - value = self.pop('itunes_explicit', 0) - # Convert 'yes' -> True, 'clean' to False, and any other value to None - # False and None both evaluate as False, so the difference can be ignored - # by applications that only need to know if the content is explicit. - self._getContext()['itunes_explicit'] = (None, False, True)[(value == 'yes' and 2) or value == 'clean' or 0] - - def _start_media_group(self, attrsD): - # don't do anything, but don't break the enclosed tags either - pass - - def _start_media_rating(self, attrsD): - context = self._getContext() - context.setdefault('media_rating', attrsD) - self.push('rating', 1) - - def _end_media_rating(self): - rating = self.pop('rating') - if rating is not None and rating.strip(): - context = self._getContext() - context['media_rating']['content'] = rating - - def _start_media_credit(self, attrsD): - context = self._getContext() - context.setdefault('media_credit', []) - context['media_credit'].append(attrsD) - self.push('credit', 1) - - def _end_media_credit(self): - credit = self.pop('credit') - if credit != None and len(credit.strip()) != 0: - context = self._getContext() - context['media_credit'][-1]['content'] = credit - - def _start_media_restriction(self, attrsD): - context = self._getContext() - context.setdefault('media_restriction', attrsD) - self.push('restriction', 1) - - def _end_media_restriction(self): - restriction = self.pop('restriction') - if restriction != None and len(restriction.strip()) != 0: - context = self._getContext() - context['media_restriction']['content'] = [cc.strip().lower() for cc in restriction.split(' ')] - - def _start_media_license(self, attrsD): - context = self._getContext() - context.setdefault('media_license', attrsD) - self.push('license', 1) - - def _end_media_license(self): - license = self.pop('license') - if license != None and len(license.strip()) != 0: - context = self._getContext() - context['media_license']['content'] = license - - def _start_media_content(self, attrsD): - context = self._getContext() - context.setdefault('media_content', []) - context['media_content'].append(attrsD) - - def _start_media_thumbnail(self, attrsD): - context = self._getContext() - context.setdefault('media_thumbnail', []) - self.push('url', 1) # new - context['media_thumbnail'].append(attrsD) - - def _end_media_thumbnail(self): - url = self.pop('url') - context = self._getContext() - if url != None and len(url.strip()) != 0: - if 'url' not in context['media_thumbnail'][-1]: - context['media_thumbnail'][-1]['url'] = url - - def _start_media_player(self, attrsD): - self.push('media_player', 0) - self._getContext()['media_player'] = FeedParserDict(attrsD) - - def _end_media_player(self): - value = self.pop('media_player') - context = self._getContext() - context['media_player']['content'] = value - - def _start_newlocation(self, attrsD): - self.push('newlocation', 1) - - def _end_newlocation(self): - url = self.pop('newlocation') - context = self._getContext() - # don't set newlocation if the context isn't right - if context is not self.feeddata: - return - context['newlocation'] = _makeSafeAbsoluteURI(self.baseuri, url.strip()) - - def _start_psc_chapters(self, attrsD): - if self.psc_chapters_flag is None: - # Transition from None -> True - self.psc_chapters_flag = True - attrsD['chapters'] = [] - self._getContext()['psc_chapters'] = FeedParserDict(attrsD) - - def _end_psc_chapters(self): - # Transition from True -> False - self.psc_chapters_flag = False - - def _start_psc_chapter(self, attrsD): - if self.psc_chapters_flag: - start = self._getAttribute(attrsD, 'start') - attrsD['start_parsed'] = _parse_psc_chapter_start(start) - - context = self._getContext()['psc_chapters'] - context['chapters'].append(FeedParserDict(attrsD)) - - -if _XML_AVAILABLE: - class _StrictFeedParser(_FeedParserMixin, xml.sax.handler.ContentHandler): - def __init__(self, baseuri, baselang, encoding): - xml.sax.handler.ContentHandler.__init__(self) - _FeedParserMixin.__init__(self, baseuri, baselang, encoding) - self.bozo = 0 - self.exc = None - self.decls = {} - - def startPrefixMapping(self, prefix, uri): - if not uri: - return - # Jython uses '' instead of None; standardize on None - prefix = prefix or None - self.trackNamespace(prefix, uri) - if prefix and uri == 'http://www.w3.org/1999/xlink': - self.decls['xmlns:' + prefix] = uri - - def startElementNS(self, name, qname, attrs): - namespace, localname = name - lowernamespace = str(namespace or '').lower() - if lowernamespace.find(u'backend.userland.com/rss') <> -1: - # match any backend.userland.com namespace - namespace = u'http://backend.userland.com/rss' - lowernamespace = namespace - if qname and qname.find(':') > 0: - givenprefix = qname.split(':')[0] - else: - givenprefix = None - prefix = self._matchnamespaces.get(lowernamespace, givenprefix) - if givenprefix and (prefix == None or (prefix == '' and lowernamespace == '')) and givenprefix not in self.namespacesInUse: - raise UndeclaredNamespace, "'%s' is not associated with a namespace" % givenprefix - localname = str(localname).lower() - - # qname implementation is horribly broken in Python 2.1 (it - # doesn't report any), and slightly broken in Python 2.2 (it - # doesn't report the xml: namespace). So we match up namespaces - # with a known list first, and then possibly override them with - # the qnames the SAX parser gives us (if indeed it gives us any - # at all). Thanks to MatejC for helping me test this and - # tirelessly telling me that it didn't work yet. - attrsD, self.decls = self.decls, {} - if localname=='math' and namespace=='http://www.w3.org/1998/Math/MathML': - attrsD['xmlns']=namespace - if localname=='svg' and namespace=='http://www.w3.org/2000/svg': - attrsD['xmlns']=namespace - - if prefix: - localname = prefix.lower() + ':' + localname - elif namespace and not qname: #Expat - for name,value in self.namespacesInUse.items(): - if name and value == namespace: - localname = name + ':' + localname - break - - for (namespace, attrlocalname), attrvalue in attrs.items(): - lowernamespace = (namespace or '').lower() - prefix = self._matchnamespaces.get(lowernamespace, '') - if prefix: - attrlocalname = prefix + ':' + attrlocalname - attrsD[str(attrlocalname).lower()] = attrvalue - for qname in attrs.getQNames(): - attrsD[str(qname).lower()] = attrs.getValueByQName(qname) - localname = str(localname).lower() - self.unknown_starttag(localname, attrsD.items()) - - def characters(self, text): - self.handle_data(text) - - def endElementNS(self, name, qname): - namespace, localname = name - lowernamespace = str(namespace or '').lower() - if qname and qname.find(':') > 0: - givenprefix = qname.split(':')[0] - else: - givenprefix = '' - prefix = self._matchnamespaces.get(lowernamespace, givenprefix) - if prefix: - localname = prefix + ':' + localname - elif namespace and not qname: #Expat - for name,value in self.namespacesInUse.items(): - if name and value == namespace: - localname = name + ':' + localname - break - localname = str(localname).lower() - self.unknown_endtag(localname) - - def error(self, exc): - self.bozo = 1 - self.exc = exc - - # drv_libxml2 calls warning() in some cases - warning = error - - def fatalError(self, exc): - self.error(exc) - raise exc - -class _BaseHTMLProcessor(sgmllib.SGMLParser): - special = re.compile('''[<>'"]''') - bare_ampersand = re.compile("&(?!#\d+;|#x[0-9a-fA-F]+;|\w+;)") - elements_no_end_tag = set([ - 'area', 'base', 'basefont', 'br', 'col', 'command', 'embed', 'frame', - 'hr', 'img', 'input', 'isindex', 'keygen', 'link', 'meta', 'param', - 'source', 'track', 'wbr' - ]) - - def __init__(self, encoding, _type): - self.encoding = encoding - self._type = _type - sgmllib.SGMLParser.__init__(self) - - def reset(self): - self.pieces = [] - sgmllib.SGMLParser.reset(self) - - def _shorttag_replace(self, match): - tag = match.group(1) - if tag in self.elements_no_end_tag: - return '<' + tag + ' />' - else: - return '<' + tag + '>' - - # By declaring these methods and overriding their compiled code - # with the code from sgmllib, the original code will execute in - # feedparser's scope instead of sgmllib's. This means that the - # `tagfind` and `charref` regular expressions will be found as - # they're declared above, not as they're declared in sgmllib. - def goahead(self, i): - pass - goahead.func_code = sgmllib.SGMLParser.goahead.func_code - - def __parse_starttag(self, i): - pass - __parse_starttag.func_code = sgmllib.SGMLParser.parse_starttag.func_code - - def parse_starttag(self,i): - j = self.__parse_starttag(i) - if self._type == 'application/xhtml+xml': - if j>2 and self.rawdata[j-2:j]=='/>': - self.unknown_endtag(self.lasttag) - return j - - def feed(self, data): - data = re.compile(r'\s]+?)\s*/>', self._shorttag_replace, data) - data = data.replace(''', "'") - data = data.replace('"', '"') - try: - bytes - if bytes is str: - raise NameError - self.encoding = self.encoding + u'_INVALID_PYTHON_3' - except NameError: - if self.encoding and isinstance(data, unicode): - data = data.encode(self.encoding) - sgmllib.SGMLParser.feed(self, data) - sgmllib.SGMLParser.close(self) - - def normalize_attrs(self, attrs): - if not attrs: - return attrs - # utility method to be called by descendants - attrs = dict([(k.lower(), v) for k, v in attrs]).items() - attrs = [(k, k in ('rel', 'type') and v.lower() or v) for k, v in attrs] - attrs.sort() - return attrs - - def unknown_starttag(self, tag, attrs): - # called for each start tag - # attrs is a list of (attr, value) tuples - # e.g. for 
, tag='pre', attrs=[('class', 'screen')]
-        uattrs = []
-        strattrs=''
-        if attrs:
-            for key, value in attrs:
-                value=value.replace('>','>').replace('<','<').replace('"','"')
-                value = self.bare_ampersand.sub("&", value)
-                # thanks to Kevin Marks for this breathtaking hack to deal with (valid) high-bit attribute values in UTF-8 feeds
-                if not isinstance(value, unicode):
-                    value = value.decode(self.encoding, 'ignore')
-                try:
-                    # Currently, in Python 3 the key is already a str, and cannot be decoded again
-                    uattrs.append((unicode(key, self.encoding), value))
-                except TypeError:
-                    uattrs.append((key, value))
-            strattrs = u''.join([u' %s="%s"' % (key, value) for key, value in uattrs])
-            if self.encoding:
-                try:
-                    strattrs = strattrs.encode(self.encoding)
-                except (UnicodeEncodeError, LookupError):
-                    pass
-        if tag in self.elements_no_end_tag:
-            self.pieces.append('<%s%s />' % (tag, strattrs))
-        else:
-            self.pieces.append('<%s%s>' % (tag, strattrs))
-
-    def unknown_endtag(self, tag):
-        # called for each end tag, e.g. for
, tag will be 'pre' - # Reconstruct the original end tag. - if tag not in self.elements_no_end_tag: - self.pieces.append("" % tag) - - def handle_charref(self, ref): - # called for each character reference, e.g. for ' ', ref will be '160' - # Reconstruct the original character reference. - ref = ref.lower() - if ref.startswith('x'): - value = int(ref[1:], 16) - else: - value = int(ref) - - if value in _cp1252: - self.pieces.append('&#%s;' % hex(ord(_cp1252[value]))[1:]) - else: - self.pieces.append('&#%s;' % ref) - - def handle_entityref(self, ref): - # called for each entity reference, e.g. for '©', ref will be 'copy' - # Reconstruct the original entity reference. - if ref in name2codepoint or ref == 'apos': - self.pieces.append('&%s;' % ref) - else: - self.pieces.append('&%s' % ref) - - def handle_data(self, text): - # called for each block of plain text, i.e. outside of any tag and - # not containing any character or entity references - # Store the original text verbatim. - self.pieces.append(text) - - def handle_comment(self, text): - # called for each HTML comment, e.g. - # Reconstruct the original comment. - self.pieces.append('' % text) - - def handle_pi(self, text): - # called for each processing instruction, e.g. - # Reconstruct original processing instruction. - self.pieces.append('' % text) - - def handle_decl(self, text): - # called for the DOCTYPE, if present, e.g. - # - # Reconstruct original DOCTYPE - self.pieces.append('' % text) - - _new_declname_match = re.compile(r'[a-zA-Z][-_.a-zA-Z0-9:]*\s*').match - def _scan_name(self, i, declstartpos): - rawdata = self.rawdata - n = len(rawdata) - if i == n: - return None, -1 - m = self._new_declname_match(rawdata, i) - if m: - s = m.group() - name = s.strip() - if (i + len(s)) == n: - return None, -1 # end of buffer - return name.lower(), m.end() - else: - self.handle_data(rawdata) -# self.updatepos(declstartpos, i) - return None, -1 - - def convert_charref(self, name): - return '&#%s;' % name - - def convert_entityref(self, name): - return '&%s;' % name - - def output(self): - '''Return processed HTML as a single string''' - return ''.join([str(p) for p in self.pieces]) - - def parse_declaration(self, i): - try: - return sgmllib.SGMLParser.parse_declaration(self, i) - except sgmllib.SGMLParseError: - # escape the doctype declaration and continue parsing - self.handle_data('<') - return i+1 - -class _LooseFeedParser(_FeedParserMixin, _BaseHTMLProcessor): - def __init__(self, baseuri, baselang, encoding, entities): - sgmllib.SGMLParser.__init__(self) - _FeedParserMixin.__init__(self, baseuri, baselang, encoding) - _BaseHTMLProcessor.__init__(self, encoding, 'application/xhtml+xml') - self.entities=entities - - def decodeEntities(self, element, data): - data = data.replace('<', '<') - data = data.replace('<', '<') - data = data.replace('<', '<') - data = data.replace('>', '>') - data = data.replace('>', '>') - data = data.replace('>', '>') - data = data.replace('&', '&') - data = data.replace('&', '&') - data = data.replace('"', '"') - data = data.replace('"', '"') - data = data.replace(''', ''') - data = data.replace(''', ''') - if not self.contentparams.get('type', u'xml').endswith(u'xml'): - data = data.replace('<', '<') - data = data.replace('>', '>') - data = data.replace('&', '&') - data = data.replace('"', '"') - data = data.replace(''', "'") - data = data.replace('/', '/') - data = data.replace('/', '/') - return data - - def strattrs(self, attrs): - return ''.join([' %s="%s"' % (n,v.replace('"','"')) for n,v in attrs]) - -class _RelativeURIResolver(_BaseHTMLProcessor): - relative_uris = set([('a', 'href'), - ('applet', 'codebase'), - ('area', 'href'), - ('audio', 'src'), - ('blockquote', 'cite'), - ('body', 'background'), - ('del', 'cite'), - ('form', 'action'), - ('frame', 'longdesc'), - ('frame', 'src'), - ('iframe', 'longdesc'), - ('iframe', 'src'), - ('head', 'profile'), - ('img', 'longdesc'), - ('img', 'src'), - ('img', 'usemap'), - ('input', 'src'), - ('input', 'usemap'), - ('ins', 'cite'), - ('link', 'href'), - ('object', 'classid'), - ('object', 'codebase'), - ('object', 'data'), - ('object', 'usemap'), - ('q', 'cite'), - ('script', 'src'), - ('source', 'src'), - ('video', 'poster'), - ('video', 'src')]) - - def __init__(self, baseuri, encoding, _type): - _BaseHTMLProcessor.__init__(self, encoding, _type) - self.baseuri = baseuri - - def resolveURI(self, uri): - return _makeSafeAbsoluteURI(self.baseuri, uri.strip()) - - def unknown_starttag(self, tag, attrs): - attrs = self.normalize_attrs(attrs) - attrs = [(key, ((tag, key) in self.relative_uris) and self.resolveURI(value) or value) for key, value in attrs] - _BaseHTMLProcessor.unknown_starttag(self, tag, attrs) - -def _resolveRelativeURIs(htmlSource, baseURI, encoding, _type): - if not _SGML_AVAILABLE: - return htmlSource - - p = _RelativeURIResolver(baseURI, encoding, _type) - p.feed(htmlSource) - return p.output() - -def _makeSafeAbsoluteURI(base, rel=None): - # bail if ACCEPTABLE_URI_SCHEMES is empty - if not ACCEPTABLE_URI_SCHEMES: - return _urljoin(base, rel or u'') - if not base: - return rel or u'' - if not rel: - try: - scheme = urlparse.urlparse(base)[0] - except ValueError: - return u'' - if not scheme or scheme in ACCEPTABLE_URI_SCHEMES: - return base - return u'' - uri = _urljoin(base, rel) - if uri.strip().split(':', 1)[0] not in ACCEPTABLE_URI_SCHEMES: - return u'' - return uri - -class _HTMLSanitizer(_BaseHTMLProcessor): - acceptable_elements = set(['a', 'abbr', 'acronym', 'address', 'area', - 'article', 'aside', 'audio', 'b', 'big', 'blockquote', 'br', 'button', - 'canvas', 'caption', 'center', 'cite', 'code', 'col', 'colgroup', - 'command', 'datagrid', 'datalist', 'dd', 'del', 'details', 'dfn', - 'dialog', 'dir', 'div', 'dl', 'dt', 'em', 'event-source', 'fieldset', - 'figcaption', 'figure', 'footer', 'font', 'form', 'header', 'h1', - 'h2', 'h3', 'h4', 'h5', 'h6', 'hr', 'i', 'img', 'input', 'ins', - 'keygen', 'kbd', 'label', 'legend', 'li', 'm', 'map', 'menu', 'meter', - 'multicol', 'nav', 'nextid', 'ol', 'output', 'optgroup', 'option', - 'p', 'pre', 'progress', 'q', 's', 'samp', 'section', 'select', - 'small', 'sound', 'source', 'spacer', 'span', 'strike', 'strong', - 'sub', 'sup', 'table', 'tbody', 'td', 'textarea', 'time', 'tfoot', - 'th', 'thead', 'tr', 'tt', 'u', 'ul', 'var', 'video', 'noscript']) - - acceptable_attributes = set(['abbr', 'accept', 'accept-charset', 'accesskey', - 'action', 'align', 'alt', 'autocomplete', 'autofocus', 'axis', - 'background', 'balance', 'bgcolor', 'bgproperties', 'border', - 'bordercolor', 'bordercolordark', 'bordercolorlight', 'bottompadding', - 'cellpadding', 'cellspacing', 'ch', 'challenge', 'char', 'charoff', - 'choff', 'charset', 'checked', 'cite', 'class', 'clear', 'color', 'cols', - 'colspan', 'compact', 'contenteditable', 'controls', 'coords', 'data', - 'datafld', 'datapagesize', 'datasrc', 'datetime', 'default', 'delay', - 'dir', 'disabled', 'draggable', 'dynsrc', 'enctype', 'end', 'face', 'for', - 'form', 'frame', 'galleryimg', 'gutter', 'headers', 'height', 'hidefocus', - 'hidden', 'high', 'href', 'hreflang', 'hspace', 'icon', 'id', 'inputmode', - 'ismap', 'keytype', 'label', 'leftspacing', 'lang', 'list', 'longdesc', - 'loop', 'loopcount', 'loopend', 'loopstart', 'low', 'lowsrc', 'max', - 'maxlength', 'media', 'method', 'min', 'multiple', 'name', 'nohref', - 'noshade', 'nowrap', 'open', 'optimum', 'pattern', 'ping', 'point-size', - 'poster', 'pqg', 'preload', 'prompt', 'radiogroup', 'readonly', 'rel', - 'repeat-max', 'repeat-min', 'replace', 'required', 'rev', 'rightspacing', - 'rows', 'rowspan', 'rules', 'scope', 'selected', 'shape', 'size', 'span', - 'src', 'start', 'step', 'summary', 'suppress', 'tabindex', 'target', - 'template', 'title', 'toppadding', 'type', 'unselectable', 'usemap', - 'urn', 'valign', 'value', 'variable', 'volume', 'vspace', 'vrml', - 'width', 'wrap', 'xml:lang']) - - unacceptable_elements_with_end_tag = set(['script', 'applet', 'style']) - - acceptable_css_properties = set(['azimuth', 'background-color', - 'border-bottom-color', 'border-collapse', 'border-color', - 'border-left-color', 'border-right-color', 'border-top-color', 'clear', - 'color', 'cursor', 'direction', 'display', 'elevation', 'float', 'font', - 'font-family', 'font-size', 'font-style', 'font-variant', 'font-weight', - 'height', 'letter-spacing', 'line-height', 'overflow', 'pause', - 'pause-after', 'pause-before', 'pitch', 'pitch-range', 'richness', - 'speak', 'speak-header', 'speak-numeral', 'speak-punctuation', - 'speech-rate', 'stress', 'text-align', 'text-decoration', 'text-indent', - 'unicode-bidi', 'vertical-align', 'voice-family', 'volume', - 'white-space', 'width']) - - # survey of common keywords found in feeds - acceptable_css_keywords = set(['auto', 'aqua', 'black', 'block', 'blue', - 'bold', 'both', 'bottom', 'brown', 'center', 'collapse', 'dashed', - 'dotted', 'fuchsia', 'gray', 'green', '!important', 'italic', 'left', - 'lime', 'maroon', 'medium', 'none', 'navy', 'normal', 'nowrap', 'olive', - 'pointer', 'purple', 'red', 'right', 'solid', 'silver', 'teal', 'top', - 'transparent', 'underline', 'white', 'yellow']) - - valid_css_values = re.compile('^(#[0-9a-f]+|rgb\(\d+%?,\d*%?,?\d*%?\)?|' + - '\d{0,2}\.?\d{0,2}(cm|em|ex|in|mm|pc|pt|px|%|,|\))?)$') - - mathml_elements = set([ - 'annotation', - 'annotation-xml', - 'maction', - 'maligngroup', - 'malignmark', - 'math', - 'menclose', - 'merror', - 'mfenced', - 'mfrac', - 'mglyph', - 'mi', - 'mlabeledtr', - 'mlongdiv', - 'mmultiscripts', - 'mn', - 'mo', - 'mover', - 'mpadded', - 'mphantom', - 'mprescripts', - 'mroot', - 'mrow', - 'ms', - 'mscarries', - 'mscarry', - 'msgroup', - 'msline', - 'mspace', - 'msqrt', - 'msrow', - 'mstack', - 'mstyle', - 'msub', - 'msubsup', - 'msup', - 'mtable', - 'mtd', - 'mtext', - 'mtr', - 'munder', - 'munderover', - 'none', - 'semantics', - ]) - - mathml_attributes = set([ - 'accent', - 'accentunder', - 'actiontype', - 'align', - 'alignmentscope', - 'altimg', - 'altimg-height', - 'altimg-valign', - 'altimg-width', - 'alttext', - 'bevelled', - 'charalign', - 'close', - 'columnalign', - 'columnlines', - 'columnspacing', - 'columnspan', - 'columnwidth', - 'crossout', - 'decimalpoint', - 'denomalign', - 'depth', - 'dir', - 'display', - 'displaystyle', - 'edge', - 'encoding', - 'equalcolumns', - 'equalrows', - 'fence', - 'fontstyle', - 'fontweight', - 'form', - 'frame', - 'framespacing', - 'groupalign', - 'height', - 'href', - 'id', - 'indentalign', - 'indentalignfirst', - 'indentalignlast', - 'indentshift', - 'indentshiftfirst', - 'indentshiftlast', - 'indenttarget', - 'infixlinebreakstyle', - 'largeop', - 'length', - 'linebreak', - 'linebreakmultchar', - 'linebreakstyle', - 'lineleading', - 'linethickness', - 'location', - 'longdivstyle', - 'lquote', - 'lspace', - 'mathbackground', - 'mathcolor', - 'mathsize', - 'mathvariant', - 'maxsize', - 'minlabelspacing', - 'minsize', - 'movablelimits', - 'notation', - 'numalign', - 'open', - 'other', - 'overflow', - 'position', - 'rowalign', - 'rowlines', - 'rowspacing', - 'rowspan', - 'rquote', - 'rspace', - 'scriptlevel', - 'scriptminsize', - 'scriptsizemultiplier', - 'selection', - 'separator', - 'separators', - 'shift', - 'side', - 'src', - 'stackalign', - 'stretchy', - 'subscriptshift', - 'superscriptshift', - 'symmetric', - 'voffset', - 'width', - 'xlink:href', - 'xlink:show', - 'xlink:type', - 'xmlns', - 'xmlns:xlink', - ]) - - # svgtiny - foreignObject + linearGradient + radialGradient + stop - svg_elements = set(['a', 'animate', 'animateColor', 'animateMotion', - 'animateTransform', 'circle', 'defs', 'desc', 'ellipse', 'foreignObject', - 'font-face', 'font-face-name', 'font-face-src', 'g', 'glyph', 'hkern', - 'linearGradient', 'line', 'marker', 'metadata', 'missing-glyph', 'mpath', - 'path', 'polygon', 'polyline', 'radialGradient', 'rect', 'set', 'stop', - 'svg', 'switch', 'text', 'title', 'tspan', 'use']) - - # svgtiny + class + opacity + offset + xmlns + xmlns:xlink - svg_attributes = set(['accent-height', 'accumulate', 'additive', 'alphabetic', - 'arabic-form', 'ascent', 'attributeName', 'attributeType', - 'baseProfile', 'bbox', 'begin', 'by', 'calcMode', 'cap-height', - 'class', 'color', 'color-rendering', 'content', 'cx', 'cy', 'd', 'dx', - 'dy', 'descent', 'display', 'dur', 'end', 'fill', 'fill-opacity', - 'fill-rule', 'font-family', 'font-size', 'font-stretch', 'font-style', - 'font-variant', 'font-weight', 'from', 'fx', 'fy', 'g1', 'g2', - 'glyph-name', 'gradientUnits', 'hanging', 'height', 'horiz-adv-x', - 'horiz-origin-x', 'id', 'ideographic', 'k', 'keyPoints', 'keySplines', - 'keyTimes', 'lang', 'mathematical', 'marker-end', 'marker-mid', - 'marker-start', 'markerHeight', 'markerUnits', 'markerWidth', 'max', - 'min', 'name', 'offset', 'opacity', 'orient', 'origin', - 'overline-position', 'overline-thickness', 'panose-1', 'path', - 'pathLength', 'points', 'preserveAspectRatio', 'r', 'refX', 'refY', - 'repeatCount', 'repeatDur', 'requiredExtensions', 'requiredFeatures', - 'restart', 'rotate', 'rx', 'ry', 'slope', 'stemh', 'stemv', - 'stop-color', 'stop-opacity', 'strikethrough-position', - 'strikethrough-thickness', 'stroke', 'stroke-dasharray', - 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', - 'stroke-miterlimit', 'stroke-opacity', 'stroke-width', 'systemLanguage', - 'target', 'text-anchor', 'to', 'transform', 'type', 'u1', 'u2', - 'underline-position', 'underline-thickness', 'unicode', 'unicode-range', - 'units-per-em', 'values', 'version', 'viewBox', 'visibility', 'width', - 'widths', 'x', 'x-height', 'x1', 'x2', 'xlink:actuate', 'xlink:arcrole', - 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', - 'xml:base', 'xml:lang', 'xml:space', 'xmlns', 'xmlns:xlink', 'y', 'y1', - 'y2', 'zoomAndPan']) - - svg_attr_map = None - svg_elem_map = None - - acceptable_svg_properties = set([ 'fill', 'fill-opacity', 'fill-rule', - 'stroke', 'stroke-width', 'stroke-linecap', 'stroke-linejoin', - 'stroke-opacity']) - - def reset(self): - _BaseHTMLProcessor.reset(self) - self.unacceptablestack = 0 - self.mathmlOK = 0 - self.svgOK = 0 - - def unknown_starttag(self, tag, attrs): - acceptable_attributes = self.acceptable_attributes - keymap = {} - if not tag in self.acceptable_elements or self.svgOK: - if tag in self.unacceptable_elements_with_end_tag: - self.unacceptablestack += 1 - - # add implicit namespaces to html5 inline svg/mathml - if self._type.endswith('html'): - if not dict(attrs).get('xmlns'): - if tag=='svg': - attrs.append( ('xmlns','http://www.w3.org/2000/svg') ) - if tag=='math': - attrs.append( ('xmlns','http://www.w3.org/1998/Math/MathML') ) - - # not otherwise acceptable, perhaps it is MathML or SVG? - if tag=='math' and ('xmlns','http://www.w3.org/1998/Math/MathML') in attrs: - self.mathmlOK += 1 - if tag=='svg' and ('xmlns','http://www.w3.org/2000/svg') in attrs: - self.svgOK += 1 - - # chose acceptable attributes based on tag class, else bail - if self.mathmlOK and tag in self.mathml_elements: - acceptable_attributes = self.mathml_attributes - elif self.svgOK and tag in self.svg_elements: - # for most vocabularies, lowercasing is a good idea. Many - # svg elements, however, are camel case - if not self.svg_attr_map: - lower=[attr.lower() for attr in self.svg_attributes] - mix=[a for a in self.svg_attributes if a not in lower] - self.svg_attributes = lower - self.svg_attr_map = dict([(a.lower(),a) for a in mix]) - - lower=[attr.lower() for attr in self.svg_elements] - mix=[a for a in self.svg_elements if a not in lower] - self.svg_elements = lower - self.svg_elem_map = dict([(a.lower(),a) for a in mix]) - acceptable_attributes = self.svg_attributes - tag = self.svg_elem_map.get(tag,tag) - keymap = self.svg_attr_map - elif not tag in self.acceptable_elements: - return - - # declare xlink namespace, if needed - if self.mathmlOK or self.svgOK: - if filter(lambda (n,v): n.startswith('xlink:'),attrs): - if not ('xmlns:xlink','http://www.w3.org/1999/xlink') in attrs: - attrs.append(('xmlns:xlink','http://www.w3.org/1999/xlink')) - - clean_attrs = [] - for key, value in self.normalize_attrs(attrs): - if key in acceptable_attributes: - key=keymap.get(key,key) - # make sure the uri uses an acceptable uri scheme - if key == u'href': - value = _makeSafeAbsoluteURI(value) - clean_attrs.append((key,value)) - elif key=='style': - clean_value = self.sanitize_style(value) - if clean_value: - clean_attrs.append((key,clean_value)) - _BaseHTMLProcessor.unknown_starttag(self, tag, clean_attrs) - - def unknown_endtag(self, tag): - if not tag in self.acceptable_elements: - if tag in self.unacceptable_elements_with_end_tag: - self.unacceptablestack -= 1 - if self.mathmlOK and tag in self.mathml_elements: - if tag == 'math' and self.mathmlOK: - self.mathmlOK -= 1 - elif self.svgOK and tag in self.svg_elements: - tag = self.svg_elem_map.get(tag,tag) - if tag == 'svg' and self.svgOK: - self.svgOK -= 1 - else: - return - _BaseHTMLProcessor.unknown_endtag(self, tag) - - def handle_pi(self, text): - pass - - def handle_decl(self, text): - pass - - def handle_data(self, text): - if not self.unacceptablestack: - _BaseHTMLProcessor.handle_data(self, text) - - def sanitize_style(self, style): - # disallow urls - style=re.compile('url\s*\(\s*[^\s)]+?\s*\)\s*').sub(' ',style) - - # gauntlet - if not re.match("""^([:,;#%.\sa-zA-Z0-9!]|\w-\w|'[\s\w]+'|"[\s\w]+"|\([\d,\s]+\))*$""", style): - return '' - # This replaced a regexp that used re.match and was prone to pathological back-tracking. - if re.sub("\s*[-\w]+\s*:\s*[^:;]*;?", '', style).strip(): - return '' - - clean = [] - for prop,value in re.findall("([-\w]+)\s*:\s*([^:;]*)",style): - if not value: - continue - if prop.lower() in self.acceptable_css_properties: - clean.append(prop + ': ' + value + ';') - elif prop.split('-')[0].lower() in ['background','border','margin','padding']: - for keyword in value.split(): - if not keyword in self.acceptable_css_keywords and \ - not self.valid_css_values.match(keyword): - break - else: - clean.append(prop + ': ' + value + ';') - elif self.svgOK and prop.lower() in self.acceptable_svg_properties: - clean.append(prop + ': ' + value + ';') - - return ' '.join(clean) - - def parse_comment(self, i, report=1): - ret = _BaseHTMLProcessor.parse_comment(self, i, report) - if ret >= 0: - return ret - # if ret == -1, this may be a malicious attempt to circumvent - # sanitization, or a page-destroying unclosed comment - match = re.compile(r'--[^>]*>').search(self.rawdata, i+4) - if match: - return match.end() - # unclosed comment; deliberately fail to handle_data() - return len(self.rawdata) - - -def _sanitizeHTML(htmlSource, encoding, _type): - if not _SGML_AVAILABLE: - return htmlSource - p = _HTMLSanitizer(encoding, _type) - htmlSource = htmlSource.replace(' stream - - This function lets you define parsers that take any input source - (URL, pathname to local or network file, or actual data as a string) - and deal with it in a uniform manner. Returned object is guaranteed - to have all the basic stdio read methods (read, readline, readlines). - Just .close() the object when you're done with it. - - If the etag argument is supplied, it will be used as the value of an - If-None-Match request header. - - If the modified argument is supplied, it can be a tuple of 9 integers - (as returned by gmtime() in the standard Python time module) or a date - string in any format supported by feedparser. Regardless, it MUST - be in GMT (Greenwich Mean Time). It will be reformatted into an - RFC 1123-compliant date and used as the value of an If-Modified-Since - request header. - - If the agent argument is supplied, it will be used as the value of a - User-Agent request header. - - If the referrer argument is supplied, it will be used as the value of a - Referer[sic] request header. - - If handlers is supplied, it is a list of handlers used to build a - urllib2 opener. - - if request_headers is supplied it is a dictionary of HTTP request headers - that will override the values generated by FeedParser. - - :return: A :class:`StringIO.StringIO` or :class:`io.BytesIO`. - """ - - if hasattr(url_file_stream_or_string, 'read'): - return url_file_stream_or_string - - if isinstance(url_file_stream_or_string, basestring) \ - and urlparse.urlparse(url_file_stream_or_string)[0] in ('http', 'https', 'ftp', 'file', 'feed'): - # Deal with the feed URI scheme - if url_file_stream_or_string.startswith('feed:http'): - url_file_stream_or_string = url_file_stream_or_string[5:] - elif url_file_stream_or_string.startswith('feed:'): - url_file_stream_or_string = 'http:' + url_file_stream_or_string[5:] - if not agent: - agent = USER_AGENT - # Test for inline user:password credentials for HTTP basic auth - auth = None - if base64 and not url_file_stream_or_string.startswith('ftp:'): - urltype, rest = urllib.splittype(url_file_stream_or_string) - realhost, rest = urllib.splithost(rest) - if realhost: - user_passwd, realhost = urllib.splituser(realhost) - if user_passwd: - url_file_stream_or_string = '%s://%s%s' % (urltype, realhost, rest) - auth = base64.standard_b64encode(user_passwd).strip() - - # iri support - if isinstance(url_file_stream_or_string, unicode): - url_file_stream_or_string = _convert_to_idn(url_file_stream_or_string) - - # try to open with urllib2 (to use optional headers) - request = _build_urllib2_request(url_file_stream_or_string, agent, etag, modified, referrer, auth, request_headers) - opener = urllib2.build_opener(*tuple(handlers + [_FeedURLHandler()])) - opener.addheaders = [] # RMK - must clear so we only send our custom User-Agent - try: - return opener.open(request) - finally: - opener.close() # JohnD - - # try to open with native open function (if url_file_stream_or_string is a filename) - try: - return open(url_file_stream_or_string, 'rb') - except (IOError, UnicodeEncodeError, TypeError): - # if url_file_stream_or_string is a unicode object that - # cannot be converted to the encoding returned by - # sys.getfilesystemencoding(), a UnicodeEncodeError - # will be thrown - # If url_file_stream_or_string is a string that contains NULL - # (such as an XML document encoded in UTF-32), TypeError will - # be thrown. - pass - - # treat url_file_stream_or_string as string - if isinstance(url_file_stream_or_string, unicode): - return _StringIO(url_file_stream_or_string.encode('utf-8')) - return _StringIO(url_file_stream_or_string) - -def _convert_to_idn(url): - """Convert a URL to IDN notation""" - # this function should only be called with a unicode string - # strategy: if the host cannot be encoded in ascii, then - # it'll be necessary to encode it in idn form - parts = list(urlparse.urlsplit(url)) - try: - parts[1].encode('ascii') - except UnicodeEncodeError: - # the url needs to be converted to idn notation - host = parts[1].rsplit(':', 1) - newhost = [] - port = u'' - if len(host) == 2: - port = host.pop() - for h in host[0].split('.'): - newhost.append(h.encode('idna').decode('utf-8')) - parts[1] = '.'.join(newhost) - if port: - parts[1] += ':' + port - return urlparse.urlunsplit(parts) - else: - return url - -def _build_urllib2_request(url, agent, etag, modified, referrer, auth, request_headers): - request = urllib2.Request(url) - request.add_header('User-Agent', agent) - if etag: - request.add_header('If-None-Match', etag) - if isinstance(modified, basestring): - modified = _parse_date(modified) - elif isinstance(modified, datetime.datetime): - modified = modified.utctimetuple() - if modified: - # format into an RFC 1123-compliant timestamp. We can't use - # time.strftime() since the %a and %b directives can be affected - # by the current locale, but RFC 2616 states that dates must be - # in English. - short_weekdays = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'] - months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'] - request.add_header('If-Modified-Since', '%s, %02d %s %04d %02d:%02d:%02d GMT' % (short_weekdays[modified[6]], modified[2], months[modified[1] - 1], modified[0], modified[3], modified[4], modified[5])) - if referrer: - request.add_header('Referer', referrer) - if gzip and zlib: - request.add_header('Accept-encoding', 'gzip, deflate') - elif gzip: - request.add_header('Accept-encoding', 'gzip') - elif zlib: - request.add_header('Accept-encoding', 'deflate') - else: - request.add_header('Accept-encoding', '') - if auth: - request.add_header('Authorization', 'Basic %s' % auth) - if ACCEPT_HEADER: - request.add_header('Accept', ACCEPT_HEADER) - # use this for whatever -- cookies, special headers, etc - # [('Cookie','Something'),('x-special-header','Another Value')] - for header_name, header_value in request_headers.items(): - request.add_header(header_name, header_value) - request.add_header('A-IM', 'feed') # RFC 3229 support - return request - -def _parse_psc_chapter_start(start): - FORMAT = r'^((\d{2}):)?(\d{2}):(\d{2})(\.(\d{3}))?$' - - m = re.compile(FORMAT).match(start) - if m is None: - return None - - _, h, m, s, _, ms = m.groups() - h, m, s, ms = (int(h or 0), int(m), int(s), int(ms or 0)) - return datetime.timedelta(0, h*60*60 + m*60 + s, ms*1000) - -_date_handlers = [] -def registerDateHandler(func): - '''Register a date handler function (takes string, returns 9-tuple date in GMT)''' - _date_handlers.insert(0, func) - -# ISO-8601 date parsing routines written by Fazal Majid. -# The ISO 8601 standard is very convoluted and irregular - a full ISO 8601 -# parser is beyond the scope of feedparser and would be a worthwhile addition -# to the Python library. -# A single regular expression cannot parse ISO 8601 date formats into groups -# as the standard is highly irregular (for instance is 030104 2003-01-04 or -# 0301-04-01), so we use templates instead. -# Please note the order in templates is significant because we need a -# greedy match. -_iso8601_tmpl = ['YYYY-?MM-?DD', 'YYYY-0MM?-?DD', 'YYYY-MM', 'YYYY-?OOO', - 'YY-?MM-?DD', 'YY-?OOO', 'YYYY', - '-YY-?MM', '-OOO', '-YY', - '--MM-?DD', '--MM', - '---DD', - 'CC', ''] -_iso8601_re = [ - tmpl.replace( - 'YYYY', r'(?P\d{4})').replace( - 'YY', r'(?P\d\d)').replace( - 'MM', r'(?P[01]\d)').replace( - 'DD', r'(?P[0123]\d)').replace( - 'OOO', r'(?P[0123]\d\d)').replace( - 'CC', r'(?P\d\d$)') - + r'(T?(?P\d{2}):(?P\d{2})' - + r'(:(?P\d{2}))?' - + r'(\.(?P\d+))?' - + r'(?P[+-](?P\d{2})(:(?P\d{2}))?|Z)?)?' - for tmpl in _iso8601_tmpl] -try: - del tmpl -except NameError: - pass -_iso8601_matches = [re.compile(regex).match for regex in _iso8601_re] -try: - del regex -except NameError: - pass - -def _parse_date_iso8601(dateString): - '''Parse a variety of ISO-8601-compatible formats like 20040105''' - m = None - for _iso8601_match in _iso8601_matches: - m = _iso8601_match(dateString) - if m: - break - if not m: - return - if m.span() == (0, 0): - return - params = m.groupdict() - ordinal = params.get('ordinal', 0) - if ordinal: - ordinal = int(ordinal) - else: - ordinal = 0 - year = params.get('year', '--') - if not year or year == '--': - year = time.gmtime()[0] - elif len(year) == 2: - # ISO 8601 assumes current century, i.e. 93 -> 2093, NOT 1993 - year = 100 * int(time.gmtime()[0] / 100) + int(year) - else: - year = int(year) - month = params.get('month', '-') - if not month or month == '-': - # ordinals are NOT normalized by mktime, we simulate them - # by setting month=1, day=ordinal - if ordinal: - month = 1 - else: - month = time.gmtime()[1] - month = int(month) - day = params.get('day', 0) - if not day: - # see above - if ordinal: - day = ordinal - elif params.get('century', 0) or \ - params.get('year', 0) or params.get('month', 0): - day = 1 - else: - day = time.gmtime()[2] - else: - day = int(day) - # special case of the century - is the first year of the 21st century - # 2000 or 2001 ? The debate goes on... - if 'century' in params: - year = (int(params['century']) - 1) * 100 + 1 - # in ISO 8601 most fields are optional - for field in ['hour', 'minute', 'second', 'tzhour', 'tzmin']: - if not params.get(field, None): - params[field] = 0 - hour = int(params.get('hour', 0)) - minute = int(params.get('minute', 0)) - second = int(float(params.get('second', 0))) - # weekday is normalized by mktime(), we can ignore it - weekday = 0 - daylight_savings_flag = -1 - tm = [year, month, day, hour, minute, second, weekday, - ordinal, daylight_savings_flag] - # ISO 8601 time zone adjustments - tz = params.get('tz') - if tz and tz != 'Z': - if tz[0] == '-': - tm[3] += int(params.get('tzhour', 0)) - tm[4] += int(params.get('tzmin', 0)) - elif tz[0] == '+': - tm[3] -= int(params.get('tzhour', 0)) - tm[4] -= int(params.get('tzmin', 0)) - else: - return None - # Python's time.mktime() is a wrapper around the ANSI C mktime(3c) - # which is guaranteed to normalize d/m/y/h/m/s. - # Many implementations have bugs, but we'll pretend they don't. - return time.localtime(time.mktime(tuple(tm))) -registerDateHandler(_parse_date_iso8601) - -# 8-bit date handling routines written by ytrewq1. -_korean_year = u'\ub144' # b3e2 in euc-kr -_korean_month = u'\uc6d4' # bff9 in euc-kr -_korean_day = u'\uc77c' # c0cf in euc-kr -_korean_am = u'\uc624\uc804' # bfc0 c0fc in euc-kr -_korean_pm = u'\uc624\ud6c4' # bfc0 c8c4 in euc-kr - -_korean_onblog_date_re = \ - re.compile('(\d{4})%s\s+(\d{2})%s\s+(\d{2})%s\s+(\d{2}):(\d{2}):(\d{2})' % \ - (_korean_year, _korean_month, _korean_day)) -_korean_nate_date_re = \ - re.compile(u'(\d{4})-(\d{2})-(\d{2})\s+(%s|%s)\s+(\d{,2}):(\d{,2}):(\d{,2})' % \ - (_korean_am, _korean_pm)) -def _parse_date_onblog(dateString): - '''Parse a string according to the OnBlog 8-bit date format''' - m = _korean_onblog_date_re.match(dateString) - if not m: - return - w3dtfdate = '%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s:%(second)s%(zonediff)s' % \ - {'year': m.group(1), 'month': m.group(2), 'day': m.group(3),\ - 'hour': m.group(4), 'minute': m.group(5), 'second': m.group(6),\ - 'zonediff': '+09:00'} - return _parse_date_w3dtf(w3dtfdate) -registerDateHandler(_parse_date_onblog) - -def _parse_date_nate(dateString): - '''Parse a string according to the Nate 8-bit date format''' - m = _korean_nate_date_re.match(dateString) - if not m: - return - hour = int(m.group(5)) - ampm = m.group(4) - if (ampm == _korean_pm): - hour += 12 - hour = str(hour) - if len(hour) == 1: - hour = '0' + hour - w3dtfdate = '%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s:%(second)s%(zonediff)s' % \ - {'year': m.group(1), 'month': m.group(2), 'day': m.group(3),\ - 'hour': hour, 'minute': m.group(6), 'second': m.group(7),\ - 'zonediff': '+09:00'} - return _parse_date_w3dtf(w3dtfdate) -registerDateHandler(_parse_date_nate) - -# Unicode strings for Greek date strings -_greek_months = \ - { \ - u'\u0399\u03b1\u03bd': u'Jan', # c9e1ed in iso-8859-7 - u'\u03a6\u03b5\u03b2': u'Feb', # d6e5e2 in iso-8859-7 - u'\u039c\u03ac\u03ce': u'Mar', # ccdcfe in iso-8859-7 - u'\u039c\u03b1\u03ce': u'Mar', # cce1fe in iso-8859-7 - u'\u0391\u03c0\u03c1': u'Apr', # c1f0f1 in iso-8859-7 - u'\u039c\u03ac\u03b9': u'May', # ccdce9 in iso-8859-7 - u'\u039c\u03b1\u03ca': u'May', # cce1fa in iso-8859-7 - u'\u039c\u03b1\u03b9': u'May', # cce1e9 in iso-8859-7 - u'\u0399\u03bf\u03cd\u03bd': u'Jun', # c9effded in iso-8859-7 - u'\u0399\u03bf\u03bd': u'Jun', # c9efed in iso-8859-7 - u'\u0399\u03bf\u03cd\u03bb': u'Jul', # c9effdeb in iso-8859-7 - u'\u0399\u03bf\u03bb': u'Jul', # c9f9eb in iso-8859-7 - u'\u0391\u03cd\u03b3': u'Aug', # c1fde3 in iso-8859-7 - u'\u0391\u03c5\u03b3': u'Aug', # c1f5e3 in iso-8859-7 - u'\u03a3\u03b5\u03c0': u'Sep', # d3e5f0 in iso-8859-7 - u'\u039f\u03ba\u03c4': u'Oct', # cfeaf4 in iso-8859-7 - u'\u039d\u03bf\u03ad': u'Nov', # cdefdd in iso-8859-7 - u'\u039d\u03bf\u03b5': u'Nov', # cdefe5 in iso-8859-7 - u'\u0394\u03b5\u03ba': u'Dec', # c4e5ea in iso-8859-7 - } - -_greek_wdays = \ - { \ - u'\u039a\u03c5\u03c1': u'Sun', # caf5f1 in iso-8859-7 - u'\u0394\u03b5\u03c5': u'Mon', # c4e5f5 in iso-8859-7 - u'\u03a4\u03c1\u03b9': u'Tue', # d4f1e9 in iso-8859-7 - u'\u03a4\u03b5\u03c4': u'Wed', # d4e5f4 in iso-8859-7 - u'\u03a0\u03b5\u03bc': u'Thu', # d0e5ec in iso-8859-7 - u'\u03a0\u03b1\u03c1': u'Fri', # d0e1f1 in iso-8859-7 - u'\u03a3\u03b1\u03b2': u'Sat', # d3e1e2 in iso-8859-7 - } - -_greek_date_format_re = \ - re.compile(u'([^,]+),\s+(\d{2})\s+([^\s]+)\s+(\d{4})\s+(\d{2}):(\d{2}):(\d{2})\s+([^\s]+)') - -def _parse_date_greek(dateString): - '''Parse a string according to a Greek 8-bit date format.''' - m = _greek_date_format_re.match(dateString) - if not m: - return - wday = _greek_wdays[m.group(1)] - month = _greek_months[m.group(3)] - rfc822date = '%(wday)s, %(day)s %(month)s %(year)s %(hour)s:%(minute)s:%(second)s %(zonediff)s' % \ - {'wday': wday, 'day': m.group(2), 'month': month, 'year': m.group(4),\ - 'hour': m.group(5), 'minute': m.group(6), 'second': m.group(7),\ - 'zonediff': m.group(8)} - return _parse_date_rfc822(rfc822date) -registerDateHandler(_parse_date_greek) - -# Unicode strings for Hungarian date strings -_hungarian_months = \ - { \ - u'janu\u00e1r': u'01', # e1 in iso-8859-2 - u'febru\u00e1ri': u'02', # e1 in iso-8859-2 - u'm\u00e1rcius': u'03', # e1 in iso-8859-2 - u'\u00e1prilis': u'04', # e1 in iso-8859-2 - u'm\u00e1ujus': u'05', # e1 in iso-8859-2 - u'j\u00fanius': u'06', # fa in iso-8859-2 - u'j\u00falius': u'07', # fa in iso-8859-2 - u'augusztus': u'08', - u'szeptember': u'09', - u'okt\u00f3ber': u'10', # f3 in iso-8859-2 - u'november': u'11', - u'december': u'12', - } - -_hungarian_date_format_re = \ - re.compile(u'(\d{4})-([^-]+)-(\d{,2})T(\d{,2}):(\d{2})((\+|-)(\d{,2}:\d{2}))') - -def _parse_date_hungarian(dateString): - '''Parse a string according to a Hungarian 8-bit date format.''' - m = _hungarian_date_format_re.match(dateString) - if not m or m.group(2) not in _hungarian_months: - return None - month = _hungarian_months[m.group(2)] - day = m.group(3) - if len(day) == 1: - day = '0' + day - hour = m.group(4) - if len(hour) == 1: - hour = '0' + hour - w3dtfdate = '%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s%(zonediff)s' % \ - {'year': m.group(1), 'month': month, 'day': day,\ - 'hour': hour, 'minute': m.group(5),\ - 'zonediff': m.group(6)} - return _parse_date_w3dtf(w3dtfdate) -registerDateHandler(_parse_date_hungarian) - -timezonenames = { - 'ut': 0, 'gmt': 0, 'z': 0, - 'adt': -3, 'ast': -4, 'at': -4, - 'edt': -4, 'est': -5, 'et': -5, - 'cdt': -5, 'cst': -6, 'ct': -6, - 'mdt': -6, 'mst': -7, 'mt': -7, - 'pdt': -7, 'pst': -8, 'pt': -8, - 'a': -1, 'n': 1, - 'm': -12, 'y': 12, -} -# W3 date and time format parser -# http://www.w3.org/TR/NOTE-datetime -# Also supports MSSQL-style datetimes as defined at: -# http://msdn.microsoft.com/en-us/library/ms186724.aspx -# (basically, allow a space as a date/time/timezone separator) -def _parse_date_w3dtf(datestr): - if not datestr.strip(): - return None - parts = datestr.lower().split('t') - if len(parts) == 1: - # This may be a date only, or may be an MSSQL-style date - parts = parts[0].split() - if len(parts) == 1: - # Treat this as a date only - parts.append('00:00:00z') - elif len(parts) > 2: - return None - date = parts[0].split('-', 2) - if not date or len(date[0]) != 4: - return None - # Ensure that `date` has 3 elements. Using '1' sets the default - # month to January and the default day to the 1st of the month. - date.extend(['1'] * (3 - len(date))) - try: - year, month, day = [int(i) for i in date] - except ValueError: - # `date` may have more than 3 elements or may contain - # non-integer strings. - return None - if parts[1].endswith('z'): - parts[1] = parts[1][:-1] - parts.append('z') - # Append the numeric timezone offset, if any, to parts. - # If this is an MSSQL-style date then parts[2] already contains - # the timezone information, so `append()` will not affect it. - # Add 1 to each value so that if `find()` returns -1 it will be - # treated as False. - loc = parts[1].find('-') + 1 or parts[1].find('+') + 1 or len(parts[1]) + 1 - loc = loc - 1 - parts.append(parts[1][loc:]) - parts[1] = parts[1][:loc] - time = parts[1].split(':', 2) - # Ensure that time has 3 elements. Using '0' means that the - # minutes and seconds, if missing, will default to 0. - time.extend(['0'] * (3 - len(time))) - tzhour = 0 - tzmin = 0 - if parts[2][:1] in ('-', '+'): - try: - tzhour = int(parts[2][1:3]) - tzmin = int(parts[2][4:]) - except ValueError: - return None - if parts[2].startswith('-'): - tzhour = tzhour * -1 - tzmin = tzmin * -1 - else: - tzhour = timezonenames.get(parts[2], 0) - try: - hour, minute, second = [int(float(i)) for i in time] - except ValueError: - return None - # Create the datetime object and timezone delta objects - try: - stamp = datetime.datetime(year, month, day, hour, minute, second) - except ValueError: - return None - delta = datetime.timedelta(0, 0, 0, 0, tzmin, tzhour) - # Return the date and timestamp in a UTC 9-tuple - try: - return (stamp - delta).utctimetuple() - except (OverflowError, ValueError): - # IronPython throws ValueErrors instead of OverflowErrors - return None - -registerDateHandler(_parse_date_w3dtf) - -def _parse_date_rfc822(date): - """Parse RFC 822 dates and times - http://tools.ietf.org/html/rfc822#section-5 - - There are some formatting differences that are accounted for: - 1. Years may be two or four digits. - 2. The month and day can be swapped. - 3. Additional timezone names are supported. - 4. A default time and timezone are assumed if only a date is present. - """ - daynames = set(['mon', 'tue', 'wed', 'thu', 'fri', 'sat', 'sun']) - months = { - 'jan': 1, 'feb': 2, 'mar': 3, 'apr': 4, 'may': 5, 'jun': 6, - 'jul': 7, 'aug': 8, 'sep': 9, 'oct': 10, 'nov': 11, 'dec': 12, - } - - parts = date.lower().split() - if len(parts) < 5: - # Assume that the time and timezone are missing - parts.extend(('00:00:00', '0000')) - # Remove the day name - if parts[0][:3] in daynames: - parts = parts[1:] - if len(parts) < 5: - # If there are still fewer than five parts, there's not enough - # information to interpret this - return None - try: - day = int(parts[0]) - except ValueError: - # Check if the day and month are swapped - if months.get(parts[0][:3]): - try: - day = int(parts[1]) - except ValueError: - return None - else: - parts[1] = parts[0] - else: - return None - month = months.get(parts[1][:3]) - if not month: - return None - try: - year = int(parts[2]) - except ValueError: - return None - # Normalize two-digit years: - # Anything in the 90's is interpreted as 1990 and on - # Anything 89 or less is interpreted as 2089 or before - if len(parts[2]) <= 2: - year += (1900, 2000)[year < 90] - timeparts = parts[3].split(':') - timeparts = timeparts + ([0] * (3 - len(timeparts))) - try: - (hour, minute, second) = map(int, timeparts) - except ValueError: - return None - tzhour = 0 - tzmin = 0 - # Strip 'Etc/' from the timezone - if parts[4].startswith('etc/'): - parts[4] = parts[4][4:] - # Normalize timezones that start with 'gmt': - # GMT-05:00 => -0500 - # GMT => GMT - if parts[4].startswith('gmt'): - parts[4] = ''.join(parts[4][3:].split(':')) or 'gmt' - # Handle timezones like '-0500', '+0500', and 'EST' - if parts[4] and parts[4][0] in ('-', '+'): - try: - tzhour = int(parts[4][1:3]) - tzmin = int(parts[4][3:]) - except ValueError: - return None - if parts[4].startswith('-'): - tzhour = tzhour * -1 - tzmin = tzmin * -1 - else: - tzhour = timezonenames.get(parts[4], 0) - # Create the datetime object and timezone delta objects - try: - stamp = datetime.datetime(year, month, day, hour, minute, second) - except ValueError: - return None - delta = datetime.timedelta(0, 0, 0, 0, tzmin, tzhour) - # Return the date and timestamp in a UTC 9-tuple - try: - return (stamp - delta).utctimetuple() - except (OverflowError, ValueError): - # IronPython throws ValueErrors instead of OverflowErrors - return None -registerDateHandler(_parse_date_rfc822) - -_months = ['jan', 'feb', 'mar', 'apr', 'may', 'jun', - 'jul', 'aug', 'sep', 'oct', 'nov', 'dec'] -def _parse_date_asctime(dt): - """Parse asctime-style dates. - - Converts asctime to RFC822-compatible dates and uses the RFC822 parser - to do the actual parsing. - - Supported formats (format is standardized to the first one listed): - - * {weekday name} {month name} dd hh:mm:ss {+-tz} yyyy - * {weekday name} {month name} dd hh:mm:ss yyyy - """ - - parts = dt.split() - - # Insert a GMT timezone, if needed. - if len(parts) == 5: - parts.insert(4, '+0000') - - # Exit if there are not six parts. - if len(parts) != 6: - return None - - # Reassemble the parts in an RFC822-compatible order and parse them. - return _parse_date_rfc822(' '.join([ - parts[0], parts[2], parts[1], parts[5], parts[3], parts[4], - ])) -registerDateHandler(_parse_date_asctime) - -def _parse_date_perforce(aDateString): - """parse a date in yyyy/mm/dd hh:mm:ss TTT format""" - # Fri, 2006/09/15 08:19:53 EDT - _my_date_pattern = re.compile( \ - r'(\w{,3}), (\d{,4})/(\d{,2})/(\d{2}) (\d{,2}):(\d{2}):(\d{2}) (\w{,3})') - - m = _my_date_pattern.search(aDateString) - if m is None: - return None - dow, year, month, day, hour, minute, second, tz = m.groups() - months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'] - dateString = "%s, %s %s %s %s:%s:%s %s" % (dow, day, months[int(month) - 1], year, hour, minute, second, tz) - tm = rfc822.parsedate_tz(dateString) - if tm: - return time.gmtime(rfc822.mktime_tz(tm)) -registerDateHandler(_parse_date_perforce) - -def _parse_date(dateString): - '''Parses a variety of date formats into a 9-tuple in GMT''' - if not dateString: - return None - for handler in _date_handlers: - try: - date9tuple = handler(dateString) - except (KeyError, OverflowError, ValueError): - continue - if not date9tuple: - continue - if len(date9tuple) != 9: - continue - return date9tuple - return None - -# Each marker represents some of the characters of the opening XML -# processing instruction (' -RE_XML_DECLARATION = re.compile('^<\?xml[^>]*?>') - -# Capture the value of the XML processing instruction's encoding attribute. -# Example: -RE_XML_PI_ENCODING = re.compile(_s2bytes('^<\?.*encoding=[\'"](.*?)[\'"].*\?>')) - -def convert_to_utf8(http_headers, data): - '''Detect and convert the character encoding to UTF-8. - - http_headers is a dictionary - data is a raw string (not Unicode)''' - - # This is so much trickier than it sounds, it's not even funny. - # According to RFC 3023 ('XML Media Types'), if the HTTP Content-Type - # is application/xml, application/*+xml, - # application/xml-external-parsed-entity, or application/xml-dtd, - # the encoding given in the charset parameter of the HTTP Content-Type - # takes precedence over the encoding given in the XML prefix within the - # document, and defaults to 'utf-8' if neither are specified. But, if - # the HTTP Content-Type is text/xml, text/*+xml, or - # text/xml-external-parsed-entity, the encoding given in the XML prefix - # within the document is ALWAYS IGNORED and only the encoding given in - # the charset parameter of the HTTP Content-Type header should be - # respected, and it defaults to 'us-ascii' if not specified. - - # Furthermore, discussion on the atom-syntax mailing list with the - # author of RFC 3023 leads me to the conclusion that any document - # served with a Content-Type of text/* and no charset parameter - # must be treated as us-ascii. (We now do this.) And also that it - # must always be flagged as non-well-formed. (We now do this too.) - - # If Content-Type is unspecified (input was local file or non-HTTP source) - # or unrecognized (server just got it totally wrong), then go by the - # encoding given in the XML prefix of the document and default to - # 'iso-8859-1' as per the HTTP specification (RFC 2616). - - # Then, assuming we didn't find a character encoding in the HTTP headers - # (and the HTTP Content-type allowed us to look in the body), we need - # to sniff the first few bytes of the XML data and try to determine - # whether the encoding is ASCII-compatible. Section F of the XML - # specification shows the way here: - # http://www.w3.org/TR/REC-xml/#sec-guessing-no-ext-info - - # If the sniffed encoding is not ASCII-compatible, we need to make it - # ASCII compatible so that we can sniff further into the XML declaration - # to find the encoding attribute, which will tell us the true encoding. - - # Of course, none of this guarantees that we will be able to parse the - # feed in the declared character encoding (assuming it was declared - # correctly, which many are not). iconv_codec can help a lot; - # you should definitely install it if you can. - # http://cjkpython.i18n.org/ - - bom_encoding = u'' - xml_encoding = u'' - rfc3023_encoding = u'' - - # Look at the first few bytes of the document to guess what - # its encoding may be. We only need to decode enough of the - # document that we can use an ASCII-compatible regular - # expression to search for an XML encoding declaration. - # The heuristic follows the XML specification, section F: - # http://www.w3.org/TR/REC-xml/#sec-guessing-no-ext-info - # Check for BOMs first. - if data[:4] == codecs.BOM_UTF32_BE: - bom_encoding = u'utf-32be' - data = data[4:] - elif data[:4] == codecs.BOM_UTF32_LE: - bom_encoding = u'utf-32le' - data = data[4:] - elif data[:2] == codecs.BOM_UTF16_BE and data[2:4] != ZERO_BYTES: - bom_encoding = u'utf-16be' - data = data[2:] - elif data[:2] == codecs.BOM_UTF16_LE and data[2:4] != ZERO_BYTES: - bom_encoding = u'utf-16le' - data = data[2:] - elif data[:3] == codecs.BOM_UTF8: - bom_encoding = u'utf-8' - data = data[3:] - # Check for the characters '''' - if RE_XML_DECLARATION.search(data): - data = RE_XML_DECLARATION.sub(new_declaration, data) - else: - data = new_declaration + u'\n' + data - data = data.encode('utf-8') - break - # if still no luck, give up - if not known_encoding: - error = CharacterEncodingUnknown( - 'document encoding unknown, I tried ' + - '%s, %s, utf-8, windows-1252, and iso-8859-2 but nothing worked' % - (rfc3023_encoding, xml_encoding)) - rfc3023_encoding = u'' - elif proposed_encoding != rfc3023_encoding: - error = CharacterEncodingOverride( - 'document declared as %s, but parsed as %s' % - (rfc3023_encoding, proposed_encoding)) - rfc3023_encoding = proposed_encoding - - return data, rfc3023_encoding, error - -# Match XML entity declarations. -# Example: -RE_ENTITY_PATTERN = re.compile(_s2bytes(r'^\s*]*?)>'), re.MULTILINE) - -# Match XML DOCTYPE declarations. -# Example: -RE_DOCTYPE_PATTERN = re.compile(_s2bytes(r'^\s*]*?)>'), re.MULTILINE) - -# Match safe entity declarations. -# This will allow hexadecimal character references through, -# as well as text, but not arbitrary nested entities. -# Example: cubed "³" -# Example: copyright "(C)" -# Forbidden: explode1 "&explode2;&explode2;" -RE_SAFE_ENTITY_PATTERN = re.compile(_s2bytes('\s+(\w+)\s+"(&#\w+;|[^&"]*)"')) - -def replace_doctype(data): - '''Strips and replaces the DOCTYPE, returns (rss_version, stripped_data) - - rss_version may be 'rss091n' or None - stripped_data is the same XML document with a replaced DOCTYPE - ''' - - # Divide the document into two groups by finding the location - # of the first element that doesn't begin with '\n\n]>') - data = RE_DOCTYPE_PATTERN.sub(replacement, head) + data - - # Precompute the safe entities for the loose parser. - safe_entities = dict((k.decode('utf-8'), v.decode('utf-8')) - for k, v in RE_SAFE_ENTITY_PATTERN.findall(replacement)) - return version, data, safe_entities - - -# GeoRSS geometry parsers. Each return a dict with 'type' and 'coordinates' -# items, or None in the case of a parsing error. - -def _parse_poslist(value, geom_type, swap=True, dims=2): - if geom_type == 'linestring': - return _parse_georss_line(value, swap, dims) - elif geom_type == 'polygon': - ring = _parse_georss_line(value, swap, dims) - return {'type': u'Polygon', 'coordinates': (ring['coordinates'],)} - else: - return None - -def _gen_georss_coords(value, swap=True, dims=2): - # A generator of (lon, lat) pairs from a string of encoded GeoRSS - # coordinates. Converts to floats and swaps order. - latlons = itertools.imap(float, value.strip().replace(',', ' ').split()) - nxt = latlons.next - while True: - t = [nxt(), nxt()][::swap and -1 or 1] - if dims == 3: - t.append(nxt()) - yield tuple(t) - -def _parse_georss_point(value, swap=True, dims=2): - # A point contains a single latitude-longitude pair, separated by - # whitespace. We'll also handle comma separators. - try: - coords = list(_gen_georss_coords(value, swap, dims)) - return {u'type': u'Point', u'coordinates': coords[0]} - except (IndexError, ValueError): - return None - -def _parse_georss_line(value, swap=True, dims=2): - # A line contains a space separated list of latitude-longitude pairs in - # WGS84 coordinate reference system, with each pair separated by - # whitespace. There must be at least two pairs. - try: - coords = list(_gen_georss_coords(value, swap, dims)) - return {u'type': u'LineString', u'coordinates': coords} - except (IndexError, ValueError): - return None - -def _parse_georss_polygon(value, swap=True, dims=2): - # A polygon contains a space separated list of latitude-longitude pairs, - # with each pair separated by whitespace. There must be at least four - # pairs, with the last being identical to the first (so a polygon has a - # minimum of three actual points). - try: - ring = list(_gen_georss_coords(value, swap, dims)) - except (IndexError, ValueError): - return None - if len(ring) < 4: - return None - return {u'type': u'Polygon', u'coordinates': (ring,)} - -def _parse_georss_box(value, swap=True, dims=2): - # A bounding box is a rectangular region, often used to define the extents - # of a map or a rough area of interest. A box contains two space seperate - # latitude-longitude pairs, with each pair separated by whitespace. The - # first pair is the lower corner, the second is the upper corner. - try: - coords = list(_gen_georss_coords(value, swap, dims)) - return {u'type': u'Box', u'coordinates': tuple(coords)} - except (IndexError, ValueError): - return None - -# end geospatial parsers - - -def parse(url_file_stream_or_string, etag=None, modified=None, agent=None, referrer=None, handlers=None, request_headers=None, response_headers=None): - '''Parse a feed from a URL, file, stream, or string. - - request_headers, if given, is a dict from http header name to value to add - to the request; this overrides internally generated values. - - :return: A :class:`FeedParserDict`. - ''' - - if handlers is None: - handlers = [] - if request_headers is None: - request_headers = {} - if response_headers is None: - response_headers = {} - - result = FeedParserDict() - result['feed'] = FeedParserDict() - result['entries'] = [] - result['bozo'] = 0 - if not isinstance(handlers, list): - handlers = [handlers] - try: - f = _open_resource(url_file_stream_or_string, etag, modified, agent, referrer, handlers, request_headers) - data = f.read() - except Exception, e: - result['bozo'] = 1 - result['bozo_exception'] = e - data = None - f = None - - if hasattr(f, 'headers'): - result['headers'] = dict(f.headers) - # overwrite existing headers using response_headers - if 'headers' in result: - result['headers'].update(response_headers) - elif response_headers: - result['headers'] = copy.deepcopy(response_headers) - - # lowercase all of the HTTP headers for comparisons per RFC 2616 - if 'headers' in result: - http_headers = dict((k.lower(), v) for k, v in result['headers'].items()) - else: - http_headers = {} - - # if feed is gzip-compressed, decompress it - if f and data and http_headers: - if gzip and 'gzip' in http_headers.get('content-encoding', ''): - try: - data = gzip.GzipFile(fileobj=_StringIO(data)).read() - except (IOError, struct.error), e: - # IOError can occur if the gzip header is bad. - # struct.error can occur if the data is damaged. - result['bozo'] = 1 - result['bozo_exception'] = e - if isinstance(e, struct.error): - # A gzip header was found but the data is corrupt. - # Ideally, we should re-request the feed without the - # 'Accept-encoding: gzip' header, but we don't. - data = None - elif zlib and 'deflate' in http_headers.get('content-encoding', ''): - try: - data = zlib.decompress(data) - except zlib.error, e: - try: - # The data may have no headers and no checksum. - data = zlib.decompress(data, -15) - except zlib.error, e: - result['bozo'] = 1 - result['bozo_exception'] = e - - # save HTTP headers - if http_headers: - if 'etag' in http_headers: - etag = http_headers.get('etag', u'') - if not isinstance(etag, unicode): - etag = etag.decode('utf-8', 'ignore') - if etag: - result['etag'] = etag - if 'last-modified' in http_headers: - modified = http_headers.get('last-modified', u'') - if modified: - result['modified'] = modified - result['modified_parsed'] = _parse_date(modified) - if hasattr(f, 'url'): - if not isinstance(f.url, unicode): - result['href'] = f.url.decode('utf-8', 'ignore') - else: - result['href'] = f.url - result['status'] = 200 - if hasattr(f, 'status'): - result['status'] = f.status - if hasattr(f, 'close'): - f.close() - - if data is None: - return result - - # Stop processing if the server sent HTTP 304 Not Modified. - if getattr(f, 'code', 0) == 304: - result['version'] = u'' - result['debug_message'] = 'The feed has not changed since you last checked, ' + \ - 'so the server sent no data. This is a feature, not a bug!' - return result - - data, result['encoding'], error = convert_to_utf8(http_headers, data) - use_strict_parser = result['encoding'] and True or False - if error is not None: - result['bozo'] = 1 - result['bozo_exception'] = error - - result['version'], data, entities = replace_doctype(data) - - # Ensure that baseuri is an absolute URI using an acceptable URI scheme. - contentloc = http_headers.get('content-location', u'') - href = result.get('href', u'') - baseuri = _makeSafeAbsoluteURI(href, contentloc) or _makeSafeAbsoluteURI(contentloc) or href - - baselang = http_headers.get('content-language', None) - if not isinstance(baselang, unicode) and baselang is not None: - baselang = baselang.decode('utf-8', 'ignore') - - if not _XML_AVAILABLE: - use_strict_parser = 0 - if use_strict_parser: - # initialize the SAX parser - feedparser = _StrictFeedParser(baseuri, baselang, 'utf-8') - saxparser = xml.sax.make_parser(PREFERRED_XML_PARSERS) - saxparser.setFeature(xml.sax.handler.feature_namespaces, 1) - try: - # disable downloading external doctype references, if possible - saxparser.setFeature(xml.sax.handler.feature_external_ges, 0) - except xml.sax.SAXNotSupportedException: - pass - saxparser.setContentHandler(feedparser) - saxparser.setErrorHandler(feedparser) - source = xml.sax.xmlreader.InputSource() - source.setByteStream(_StringIO(data)) - try: - saxparser.parse(source) - except xml.sax.SAXException, e: - result['bozo'] = 1 - result['bozo_exception'] = feedparser.exc or e - use_strict_parser = 0 - if not use_strict_parser and _SGML_AVAILABLE: - feedparser = _LooseFeedParser(baseuri, baselang, 'utf-8', entities) - feedparser.feed(data.decode('utf-8', 'replace')) - result['feed'] = feedparser.feeddata - result['entries'] = feedparser.entries - result['version'] = result['version'] or feedparser.version - result['namespaces'] = feedparser.namespacesInUse - return result - -# The list of EPSG codes for geographic (latitude/longitude) coordinate -# systems to support decoding of GeoRSS GML profiles. -_geogCS = [ -3819, 3821, 3824, 3889, 3906, 4001, 4002, 4003, 4004, 4005, 4006, 4007, 4008, -4009, 4010, 4011, 4012, 4013, 4014, 4015, 4016, 4018, 4019, 4020, 4021, 4022, -4023, 4024, 4025, 4027, 4028, 4029, 4030, 4031, 4032, 4033, 4034, 4035, 4036, -4041, 4042, 4043, 4044, 4045, 4046, 4047, 4052, 4053, 4054, 4055, 4075, 4081, -4120, 4121, 4122, 4123, 4124, 4125, 4126, 4127, 4128, 4129, 4130, 4131, 4132, -4133, 4134, 4135, 4136, 4137, 4138, 4139, 4140, 4141, 4142, 4143, 4144, 4145, -4146, 4147, 4148, 4149, 4150, 4151, 4152, 4153, 4154, 4155, 4156, 4157, 4158, -4159, 4160, 4161, 4162, 4163, 4164, 4165, 4166, 4167, 4168, 4169, 4170, 4171, -4172, 4173, 4174, 4175, 4176, 4178, 4179, 4180, 4181, 4182, 4183, 4184, 4185, -4188, 4189, 4190, 4191, 4192, 4193, 4194, 4195, 4196, 4197, 4198, 4199, 4200, -4201, 4202, 4203, 4204, 4205, 4206, 4207, 4208, 4209, 4210, 4211, 4212, 4213, -4214, 4215, 4216, 4218, 4219, 4220, 4221, 4222, 4223, 4224, 4225, 4226, 4227, -4228, 4229, 4230, 4231, 4232, 4233, 4234, 4235, 4236, 4237, 4238, 4239, 4240, -4241, 4242, 4243, 4244, 4245, 4246, 4247, 4248, 4249, 4250, 4251, 4252, 4253, -4254, 4255, 4256, 4257, 4258, 4259, 4260, 4261, 4262, 4263, 4264, 4265, 4266, -4267, 4268, 4269, 4270, 4271, 4272, 4273, 4274, 4275, 4276, 4277, 4278, 4279, -4280, 4281, 4282, 4283, 4284, 4285, 4286, 4287, 4288, 4289, 4291, 4292, 4293, -4294, 4295, 4296, 4297, 4298, 4299, 4300, 4301, 4302, 4303, 4304, 4306, 4307, -4308, 4309, 4310, 4311, 4312, 4313, 4314, 4315, 4316, 4317, 4318, 4319, 4322, -4324, 4326, 4463, 4470, 4475, 4483, 4490, 4555, 4558, 4600, 4601, 4602, 4603, -4604, 4605, 4606, 4607, 4608, 4609, 4610, 4611, 4612, 4613, 4614, 4615, 4616, -4617, 4618, 4619, 4620, 4621, 4622, 4623, 4624, 4625, 4626, 4627, 4628, 4629, -4630, 4631, 4632, 4633, 4634, 4635, 4636, 4637, 4638, 4639, 4640, 4641, 4642, -4643, 4644, 4645, 4646, 4657, 4658, 4659, 4660, 4661, 4662, 4663, 4664, 4665, -4666, 4667, 4668, 4669, 4670, 4671, 4672, 4673, 4674, 4675, 4676, 4677, 4678, -4679, 4680, 4681, 4682, 4683, 4684, 4685, 4686, 4687, 4688, 4689, 4690, 4691, -4692, 4693, 4694, 4695, 4696, 4697, 4698, 4699, 4700, 4701, 4702, 4703, 4704, -4705, 4706, 4707, 4708, 4709, 4710, 4711, 4712, 4713, 4714, 4715, 4716, 4717, -4718, 4719, 4720, 4721, 4722, 4723, 4724, 4725, 4726, 4727, 4728, 4729, 4730, -4731, 4732, 4733, 4734, 4735, 4736, 4737, 4738, 4739, 4740, 4741, 4742, 4743, -4744, 4745, 4746, 4747, 4748, 4749, 4750, 4751, 4752, 4753, 4754, 4755, 4756, -4757, 4758, 4759, 4760, 4761, 4762, 4763, 4764, 4765, 4801, 4802, 4803, 4804, -4805, 4806, 4807, 4808, 4809, 4810, 4811, 4813, 4814, 4815, 4816, 4817, 4818, -4819, 4820, 4821, 4823, 4824, 4901, 4902, 4903, 4904, 4979 ] diff --git a/lib/feedparser/html.py b/lib/feedparser/html.py new file mode 100644 index 00000000..18f5e8da --- /dev/null +++ b/lib/feedparser/html.py @@ -0,0 +1,213 @@ +from __future__ import absolute_import, unicode_literals + +import re + +try: + from html.entities import name2codepoint +except ImportError: + from htmlentitydefs import name2codepoint + +from .sgml import * + +_cp1252 = { + 128: '\u20ac', # euro sign + 130: '\u201a', # single low-9 quotation mark + 131: '\u0192', # latin small letter f with hook + 132: '\u201e', # double low-9 quotation mark + 133: '\u2026', # horizontal ellipsis + 134: '\u2020', # dagger + 135: '\u2021', # double dagger + 136: '\u02c6', # modifier letter circumflex accent + 137: '\u2030', # per mille sign + 138: '\u0160', # latin capital letter s with caron + 139: '\u2039', # single left-pointing angle quotation mark + 140: '\u0152', # latin capital ligature oe + 142: '\u017d', # latin capital letter z with caron + 145: '\u2018', # left single quotation mark + 146: '\u2019', # right single quotation mark + 147: '\u201c', # left double quotation mark + 148: '\u201d', # right double quotation mark + 149: '\u2022', # bullet + 150: '\u2013', # en dash + 151: '\u2014', # em dash + 152: '\u02dc', # small tilde + 153: '\u2122', # trade mark sign + 154: '\u0161', # latin small letter s with caron + 155: '\u203a', # single right-pointing angle quotation mark + 156: '\u0153', # latin small ligature oe + 158: '\u017e', # latin small letter z with caron + 159: '\u0178', # latin capital letter y with diaeresis +} + +class _BaseHTMLProcessor(sgmllib.SGMLParser, object): + special = re.compile('''[<>'"]''') + bare_ampersand = re.compile("&(?!#\d+;|#x[0-9a-fA-F]+;|\w+;)") + elements_no_end_tag = set([ + 'area', 'base', 'basefont', 'br', 'col', 'command', 'embed', 'frame', + 'hr', 'img', 'input', 'isindex', 'keygen', 'link', 'meta', 'param', + 'source', 'track', 'wbr' + ]) + + def __init__(self, encoding=None, _type='application/xhtml+xml'): + if encoding: + self.encoding = encoding + self._type = _type + super(_BaseHTMLProcessor, self).__init__() + + def reset(self): + self.pieces = [] + sgmllib.SGMLParser.reset(self) + + def _shorttag_replace(self, match): + tag = match.group(1) + if tag in self.elements_no_end_tag: + return '<' + tag + ' />' + else: + return '<' + tag + '>' + + # By declaring these methods and overriding their compiled code + # with the code from sgmllib, the original code will execute in + # feedparser's scope instead of sgmllib's. This means that the + # `tagfind` and `charref` regular expressions will be found as + # they're declared above, not as they're declared in sgmllib. + def goahead(self, i): + pass + try: + goahead.__code__ = sgmllib.SGMLParser.goahead.__code__ + except AttributeError: + goahead.func_code = sgmllib.SGMLParser.goahead.func_code + + def __parse_starttag(self, i): + pass + try: + __parse_starttag.__code__ = sgmllib.SGMLParser.parse_starttag.__code__ + except AttributeError: + __parse_starttag.func_code = sgmllib.SGMLParser.parse_starttag.func_code + + def parse_starttag(self,i): + j = self.__parse_starttag(i) + if self._type == 'application/xhtml+xml': + if j>2 and self.rawdata[j-2:j]=='/>': + self.unknown_endtag(self.lasttag) + return j + + def feed(self, data): + data = re.compile(r'\s]+?)\s*/>', self._shorttag_replace, data) + data = data.replace(''', "'") + data = data.replace('"', '"') + sgmllib.SGMLParser.feed(self, data) + sgmllib.SGMLParser.close(self) + + def normalize_attrs(self, attrs): + if not attrs: + return attrs + # utility method to be called by descendants + attrs = dict([(k.lower(), v) for k, v in attrs]).items() + attrs = [(k, k in ('rel', 'type') and v.lower() or v) for k, v in attrs] + attrs.sort() + return attrs + + def unknown_starttag(self, tag, attrs): + # called for each start tag + # attrs is a list of (attr, value) tuples + # e.g. for 
, tag='pre', attrs=[('class', 'screen')]
+        uattrs = []
+        strattrs=''
+        if attrs:
+            for key, value in attrs:
+                value=value.replace('>','>').replace('<','<').replace('"','"')
+                value = self.bare_ampersand.sub("&", value)
+                uattrs.append((key, value))
+            strattrs = ''.join([' %s="%s"' % (key, value) for key, value in uattrs])
+        if tag in self.elements_no_end_tag:
+            self.pieces.append('<%s%s />' % (tag, strattrs))
+        else:
+            self.pieces.append('<%s%s>' % (tag, strattrs))
+
+    def unknown_endtag(self, tag):
+        # called for each end tag, e.g. for
, tag will be 'pre' + # Reconstruct the original end tag. + if tag not in self.elements_no_end_tag: + self.pieces.append("" % tag) + + def handle_charref(self, ref): + # called for each character reference, e.g. for ' ', ref will be '160' + # Reconstruct the original character reference. + ref = ref.lower() + if ref.startswith('x'): + value = int(ref[1:], 16) + else: + value = int(ref) + + if value in _cp1252: + self.pieces.append('&#%s;' % hex(ord(_cp1252[value]))[1:]) + else: + self.pieces.append('&#%s;' % ref) + + def handle_entityref(self, ref): + # called for each entity reference, e.g. for '©', ref will be 'copy' + # Reconstruct the original entity reference. + if ref in name2codepoint or ref == 'apos': + self.pieces.append('&%s;' % ref) + else: + self.pieces.append('&%s' % ref) + + def handle_data(self, text): + # called for each block of plain text, i.e. outside of any tag and + # not containing any character or entity references + # Store the original text verbatim. + self.pieces.append(text) + + def handle_comment(self, text): + # called for each HTML comment, e.g. + # Reconstruct the original comment. + self.pieces.append('' % text) + + def handle_pi(self, text): + # called for each processing instruction, e.g. + # Reconstruct original processing instruction. + self.pieces.append('' % text) + + def handle_decl(self, text): + # called for the DOCTYPE, if present, e.g. + # + # Reconstruct original DOCTYPE + self.pieces.append('' % text) + + _new_declname_match = re.compile(r'[a-zA-Z][-_.a-zA-Z0-9:]*\s*').match + def _scan_name(self, i, declstartpos): + rawdata = self.rawdata + n = len(rawdata) + if i == n: + return None, -1 + m = self._new_declname_match(rawdata, i) + if m: + s = m.group() + name = s.strip() + if (i + len(s)) == n: + return None, -1 # end of buffer + return name.lower(), m.end() + else: + self.handle_data(rawdata) +# self.updatepos(declstartpos, i) + return None, -1 + + def convert_charref(self, name): + return '&#%s;' % name + + def convert_entityref(self, name): + return '&%s;' % name + + def output(self): + '''Return processed HTML as a single string''' + return ''.join(self.pieces) + + def parse_declaration(self, i): + try: + return sgmllib.SGMLParser.parse_declaration(self, i) + except sgmllib.SGMLParseError: + # escape the doctype declaration and continue parsing + self.handle_data('<') + return i+1 diff --git a/lib/feedparser/http.py b/lib/feedparser/http.py new file mode 100644 index 00000000..980dd2c5 --- /dev/null +++ b/lib/feedparser/http.py @@ -0,0 +1,231 @@ +from __future__ import absolute_import, unicode_literals, with_statement + +import datetime +import gzip +import re +import struct +import zlib + +try: + import urllib.parse + import urllib.request +except ImportError: + from urllib import splithost, splittype, splituser + from urllib2 import build_opener, HTTPDigestAuthHandler, HTTPRedirectHandler, HTTPDefaultErrorHandler, Request + from urlparse import urlparse + + class urllib(object): + class parse(object): + splithost = staticmethod(splithost) + splittype = staticmethod(splittype) + splituser = staticmethod(splituser) + urlparse = staticmethod(urlparse) + class request(object): + build_opener = staticmethod(build_opener) + HTTPDigestAuthHandler = HTTPDigestAuthHandler + HTTPRedirectHandler = HTTPRedirectHandler + HTTPDefaultErrorHandler = HTTPDefaultErrorHandler + Request = Request + +try: + from io import BytesIO as _StringIO +except ImportError: + try: + from cStringIO import StringIO as _StringIO + except ImportError: + from StringIO import StringIO as _StringIO + +try: + import base64, binascii +except ImportError: + base64 = binascii = None +else: + # Python 3.1 deprecated decodestring in favor of decodebytes + _base64decode = getattr(base64, 'decodebytes', base64.decodestring) + +from .datetimes import _parse_date +from .urls import _convert_to_idn + +try: + basestring +except NameError: + basestring = str + +bytes_ = type(b'') + +# HTTP "Accept" header to send to servers when downloading feeds. If you don't +# want to send an Accept header, set this to None. +ACCEPT_HEADER = "application/atom+xml,application/rdf+xml,application/rss+xml,application/x-netcdf,application/xml;q=0.9,text/xml;q=0.2,*/*;q=0.1" + +class _FeedURLHandler(urllib.request.HTTPDigestAuthHandler, urllib.request.HTTPRedirectHandler, urllib.request.HTTPDefaultErrorHandler): + def http_error_default(self, req, fp, code, msg, headers): + # The default implementation just raises HTTPError. + # Forget that. + fp.status = code + return fp + + def http_error_301(self, req, fp, code, msg, hdrs): + result = urllib.request.HTTPRedirectHandler.http_error_301(self, req, fp, + code, msg, hdrs) + result.status = code + result.newurl = result.geturl() + return result + # The default implementations in urllib.request.HTTPRedirectHandler + # are identical, so hardcoding a http_error_301 call above + # won't affect anything + http_error_300 = http_error_301 + http_error_302 = http_error_301 + http_error_303 = http_error_301 + http_error_307 = http_error_301 + + def http_error_401(self, req, fp, code, msg, headers): + # Check if + # - server requires digest auth, AND + # - we tried (unsuccessfully) with basic auth, AND + # If all conditions hold, parse authentication information + # out of the Authorization header we sent the first time + # (for the username and password) and the WWW-Authenticate + # header the server sent back (for the realm) and retry + # the request with the appropriate digest auth headers instead. + # This evil genius hack has been brought to you by Aaron Swartz. + host = urllib.parse.urlparse(req.get_full_url())[1] + if base64 is None or 'Authorization' not in req.headers \ + or 'WWW-Authenticate' not in headers: + return self.http_error_default(req, fp, code, msg, headers) + auth = _base64decode(req.headers['Authorization'].split(' ')[1]) + user, passw = auth.split(':') + realm = re.findall('realm="([^"]*)"', headers['WWW-Authenticate'])[0] + self.add_password(realm, host, user, passw) + retry = self.http_error_auth_reqed('www-authenticate', host, req, headers) + self.reset_retry_count() + return retry + +def _build_urllib2_request(url, agent, accept_header, etag, modified, referrer, auth, request_headers): + request = urllib.request.Request(url) + request.add_header('User-Agent', agent) + if etag: + request.add_header('If-None-Match', etag) + if isinstance(modified, basestring): + modified = _parse_date(modified) + elif isinstance(modified, datetime.datetime): + modified = modified.utctimetuple() + if modified: + # format into an RFC 1123-compliant timestamp. We can't use + # time.strftime() since the %a and %b directives can be affected + # by the current locale, but RFC 2616 states that dates must be + # in English. + short_weekdays = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'] + months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'] + request.add_header('If-Modified-Since', '%s, %02d %s %04d %02d:%02d:%02d GMT' % (short_weekdays[modified[6]], modified[2], months[modified[1] - 1], modified[0], modified[3], modified[4], modified[5])) + if referrer: + request.add_header('Referer', referrer) + if gzip and zlib: + request.add_header('Accept-encoding', 'gzip, deflate') + elif gzip: + request.add_header('Accept-encoding', 'gzip') + elif zlib: + request.add_header('Accept-encoding', 'deflate') + else: + request.add_header('Accept-encoding', '') + if auth: + request.add_header('Authorization', 'Basic %s' % auth) + if accept_header: + request.add_header('Accept', accept_header) + # use this for whatever -- cookies, special headers, etc + # [('Cookie','Something'),('x-special-header','Another Value')] + for header_name, header_value in request_headers.items(): + request.add_header(header_name, header_value) + request.add_header('A-IM', 'feed') # RFC 3229 support + return request + +def get(url, etag=None, modified=None, agent=None, referrer=None, handlers=None, request_headers=None, result=None): + if handlers is None: + handlers = [] + elif not isinstance(handlers, list): + handlers = [handlers] + if request_headers is None: + request_headers = {} + + # Deal with the feed URI scheme + if url.startswith('feed:http'): + url = url[5:] + elif url.startswith('feed:'): + url = 'http:' + url[5:] + if not agent: + agent = USER_AGENT + # Test for inline user:password credentials for HTTP basic auth + auth = None + if base64 and not url.startswith('ftp:'): + urltype, rest = urllib.parse.splittype(url) + realhost, rest = urllib.parse.splithost(rest) + if realhost: + user_passwd, realhost = urllib.parse.splituser(realhost) + if user_passwd: + url = '%s://%s%s' % (urltype, realhost, rest) + auth = base64.standard_b64encode(user_passwd).strip() + + # iri support + if not isinstance(url, bytes_): + url = _convert_to_idn(url) + + # try to open with urllib2 (to use optional headers) + request = _build_urllib2_request(url, agent, ACCEPT_HEADER, etag, modified, referrer, auth, request_headers) + opener = urllib.request.build_opener(*tuple(handlers + [_FeedURLHandler()])) + opener.addheaders = [] # RMK - must clear so we only send our custom User-Agent + f = opener.open(request) + data = f.read() + f.close() + + # lowercase all of the HTTP headers for comparisons per RFC 2616 + result['headers'] = dict((k.lower(), v) for k, v in f.headers.items()) + + # if feed is gzip-compressed, decompress it + if data and 'gzip' in result['headers'].get('content-encoding', ''): + try: + data = gzip.GzipFile(fileobj=_StringIO(data)).read() + except (EOFError, IOError, struct.error) as e: + # IOError can occur if the gzip header is bad. + # struct.error can occur if the data is damaged. + result['bozo'] = True + result['bozo_exception'] = e + if isinstance(e, struct.error): + # A gzip header was found but the data is corrupt. + # Ideally, we should re-request the feed without the + # 'Accept-encoding: gzip' header, but we don't. + data = None + elif data and 'deflate' in result['headers'].get('content-encoding', ''): + try: + data = zlib.decompress(data) + except zlib.error as e: + try: + # The data may have no headers and no checksum. + data = zlib.decompress(data, -15) + except zlib.error as e: + result['bozo'] = True + result['bozo_exception'] = e + + # save HTTP headers + if 'etag' in result['headers']: + etag = result['headers'].get('etag', '') + if isinstance(etag, bytes_): + etag = etag.decode('utf-8', 'ignore') + if etag: + result['etag'] = etag + if 'last-modified' in result['headers']: + modified = result['headers'].get('last-modified', '') + if modified: + result['modified'] = modified + result['modified_parsed'] = _parse_date(modified) + if isinstance(f.url, bytes_): + result['href'] = f.url.decode('utf-8', 'ignore') + else: + result['href'] = f.url + result['status'] = getattr(f, 'status', 200) + + # Stop processing if the server sent HTTP 304 Not Modified. + if getattr(f, 'code', 0) == 304: + result['version'] = '' + result['debug_message'] = 'The feed has not changed since you last checked, ' + \ + 'so the server sent no data. This is a feature, not a bug!' + + return data diff --git a/lib/feedparser/mixin.py b/lib/feedparser/mixin.py new file mode 100644 index 00000000..263bb0d0 --- /dev/null +++ b/lib/feedparser/mixin.py @@ -0,0 +1,754 @@ +# Shared code that is common to the strict and loose feed parsers +# Copyright 2010-2015 Kurt McKee +# Copyright 2002-2008 Mark Pilgrim +# All rights reserved. +# +# This file is a part of feedparser. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +from __future__ import absolute_import, unicode_literals + +import copy +import re + +from xml.sax.saxutils import escape as _xmlescape + +# base64 support for Atom feeds that contain embedded binary data +try: + import base64, binascii +except ImportError: + base64 = binascii = None +else: + # Python 3.1 deprecates decodestring in favor of decodebytes + _base64decode = getattr(base64, 'decodebytes', base64.decodestring) + +try: + from html.entities import name2codepoint, entitydefs +except ImportError: + from htmlentitydefs import name2codepoint, entitydefs + +from .html import _cp1252 +from .namespaces import _base, cc, dc, georss, itunes, mediarss, psc +from .sanitizer import _sanitizeHTML, _HTMLSanitizer +from .util import FeedParserDict +from .urls import _urljoin, _makeSafeAbsoluteURI, _resolveRelativeURIs + +bytes_ = type(b'') +try: + chr = unichr +except NameError: + pass + +class _FeedParserMixin( + _base.Namespace, + cc.Namespace, + dc.Namespace, + georss.Namespace, + itunes.Namespace, + mediarss.Namespace, + psc.Namespace, +): + namespaces = { + '': '', + 'http://backend.userland.com/rss': '', + 'http://blogs.law.harvard.edu/tech/rss': '', + 'http://purl.org/rss/1.0/': '', + 'http://my.netscape.com/rdf/simple/0.9/': '', + 'http://example.com/newformat#': '', + 'http://example.com/necho': '', + 'http://purl.org/echo/': '', + 'uri/of/echo/namespace#': '', + 'http://purl.org/pie/': '', + 'http://purl.org/atom/ns#': '', + 'http://www.w3.org/2005/Atom': '', + 'http://purl.org/rss/1.0/modules/rss091#': '', + + 'http://webns.net/mvcb/': 'admin', + 'http://purl.org/rss/1.0/modules/aggregation/': 'ag', + 'http://purl.org/rss/1.0/modules/annotate/': 'annotate', + 'http://media.tangent.org/rss/1.0/': 'audio', + 'http://backend.userland.com/blogChannelModule': 'blogChannel', + 'http://creativecommons.org/ns#license': 'cc', + 'http://web.resource.org/cc/': 'cc', + 'http://cyber.law.harvard.edu/rss/creativeCommonsRssModule.html': 'creativeCommons', + 'http://backend.userland.com/creativeCommonsRssModule': 'creativeCommons', + 'http://purl.org/rss/1.0/modules/company': 'co', + 'http://purl.org/rss/1.0/modules/content/': 'content', + 'http://my.theinfo.org/changed/1.0/rss/': 'cp', + 'http://purl.org/dc/elements/1.1/': 'dc', + 'http://purl.org/dc/terms/': 'dcterms', + 'http://purl.org/rss/1.0/modules/email/': 'email', + 'http://purl.org/rss/1.0/modules/event/': 'ev', + 'http://rssnamespace.org/feedburner/ext/1.0': 'feedburner', + 'http://freshmeat.net/rss/fm/': 'fm', + 'http://xmlns.com/foaf/0.1/': 'foaf', + 'http://www.w3.org/2003/01/geo/wgs84_pos#': 'geo', + 'http://www.georss.org/georss': 'georss', + 'http://www.opengis.net/gml': 'gml', + 'http://postneo.com/icbm/': 'icbm', + 'http://purl.org/rss/1.0/modules/image/': 'image', + 'http://www.itunes.com/DTDs/PodCast-1.0.dtd': 'itunes', + 'http://example.com/DTDs/PodCast-1.0.dtd': 'itunes', + 'http://purl.org/rss/1.0/modules/link/': 'l', + 'http://search.yahoo.com/mrss': 'media', + # Version 1.1.2 of the Media RSS spec added the trailing slash on the namespace + 'http://search.yahoo.com/mrss/': 'media', + 'http://madskills.com/public/xml/rss/module/pingback/': 'pingback', + 'http://prismstandard.org/namespaces/1.2/basic/': 'prism', + 'http://www.w3.org/1999/02/22-rdf-syntax-ns#': 'rdf', + 'http://www.w3.org/2000/01/rdf-schema#': 'rdfs', + 'http://purl.org/rss/1.0/modules/reference/': 'ref', + 'http://purl.org/rss/1.0/modules/richequiv/': 'reqv', + 'http://purl.org/rss/1.0/modules/search/': 'search', + 'http://purl.org/rss/1.0/modules/slash/': 'slash', + 'http://schemas.xmlsoap.org/soap/envelope/': 'soap', + 'http://purl.org/rss/1.0/modules/servicestatus/': 'ss', + 'http://hacks.benhammersley.com/rss/streaming/': 'str', + 'http://purl.org/rss/1.0/modules/subscription/': 'sub', + 'http://purl.org/rss/1.0/modules/syndication/': 'sy', + 'http://schemas.pocketsoap.com/rss/myDescModule/': 'szf', + 'http://purl.org/rss/1.0/modules/taxonomy/': 'taxo', + 'http://purl.org/rss/1.0/modules/threading/': 'thr', + 'http://purl.org/rss/1.0/modules/textinput/': 'ti', + 'http://madskills.com/public/xml/rss/module/trackback/': 'trackback', + 'http://wellformedweb.org/commentAPI/': 'wfw', + 'http://purl.org/rss/1.0/modules/wiki/': 'wiki', + 'http://www.w3.org/1999/xhtml': 'xhtml', + 'http://www.w3.org/1999/xlink': 'xlink', + 'http://www.w3.org/XML/1998/namespace': 'xml', + 'http://podlove.org/simple-chapters': 'psc', + } + _matchnamespaces = {} + + can_be_relative_uri = set(['link', 'id', 'wfw_comment', 'wfw_commentrss', 'docs', 'url', 'href', 'comments', 'icon', 'logo']) + can_contain_relative_uris = set(['content', 'title', 'summary', 'info', 'tagline', 'subtitle', 'copyright', 'rights', 'description']) + can_contain_dangerous_markup = set(['content', 'title', 'summary', 'info', 'tagline', 'subtitle', 'copyright', 'rights', 'description']) + html_types = ['text/html', 'application/xhtml+xml'] + + def __init__(self): + if not self._matchnamespaces: + for k, v in self.namespaces.items(): + self._matchnamespaces[k.lower()] = v + self.feeddata = FeedParserDict() # feed-level data + self.entries = [] # list of entry-level data + self.version = '' # feed type/version, see SUPPORTED_VERSIONS + self.namespacesInUse = {} # dictionary of namespaces defined by the feed + + # the following are used internally to track state; + # this is really out of control and should be refactored + self.infeed = 0 + self.inentry = 0 + self.incontent = 0 + self.intextinput = 0 + self.inimage = 0 + self.inauthor = 0 + self.incontributor = 0 + self.inpublisher = 0 + self.insource = 0 + + self.sourcedata = FeedParserDict() + self.contentparams = FeedParserDict() + self._summaryKey = None + self.namespacemap = {} + self.elementstack = [] + self.basestack = [] + self.langstack = [] + self.svgOK = 0 + self.title_depth = -1 + self.depth = 0 + if self.lang: + self.feeddata['language'] = self.lang.replace('_','-') + + # A map of the following form: + # { + # object_that_value_is_set_on: { + # property_name: depth_of_node_property_was_extracted_from, + # other_property: depth_of_node_property_was_extracted_from, + # }, + # } + self.property_depth_map = {} + super(_FeedParserMixin, self).__init__() + + def unknown_starttag(self, tag, attrs): + # increment depth counter + self.depth += 1 + + # normalize attrs + attrs = [self._normalize_attributes(attr) for attr in attrs] + + # track xml:base and xml:lang + attrsD = dict(attrs) + baseuri = attrsD.get('xml:base', attrsD.get('base')) or self.baseuri + if isinstance(baseuri, bytes_): + baseuri = baseuri.decode(self.encoding, 'ignore') + # ensure that self.baseuri is always an absolute URI that + # uses a whitelisted URI scheme (e.g. not `javscript:`) + if self.baseuri: + self.baseuri = _makeSafeAbsoluteURI(self.baseuri, baseuri) or self.baseuri + else: + self.baseuri = _urljoin(self.baseuri, baseuri) + lang = attrsD.get('xml:lang', attrsD.get('lang')) + if lang == '': + # xml:lang could be explicitly set to '', we need to capture that + lang = None + elif lang is None: + # if no xml:lang is specified, use parent lang + lang = self.lang + if lang: + if tag in ('feed', 'rss', 'rdf:RDF'): + self.feeddata['language'] = lang.replace('_','-') + self.lang = lang + self.basestack.append(self.baseuri) + self.langstack.append(lang) + + # track namespaces + for prefix, uri in attrs: + if prefix.startswith('xmlns:'): + self.trackNamespace(prefix[6:], uri) + elif prefix == 'xmlns': + self.trackNamespace(None, uri) + + # track inline content + if self.incontent and not self.contentparams.get('type', 'xml').endswith('xml'): + if tag in ('xhtml:div', 'div'): + return # typepad does this 10/2007 + # element declared itself as escaped markup, but it isn't really + self.contentparams['type'] = 'application/xhtml+xml' + if self.incontent and self.contentparams.get('type') == 'application/xhtml+xml': + if tag.find(':') != -1: + prefix, tag = tag.split(':', 1) + namespace = self.namespacesInUse.get(prefix, '') + if tag=='math' and namespace=='http://www.w3.org/1998/Math/MathML': + attrs.append(('xmlns',namespace)) + if tag=='svg' and namespace=='http://www.w3.org/2000/svg': + attrs.append(('xmlns',namespace)) + if tag == 'svg': + self.svgOK += 1 + return self.handle_data('<%s%s>' % (tag, self.strattrs(attrs)), escape=0) + + # match namespaces + if tag.find(':') != -1: + prefix, suffix = tag.split(':', 1) + else: + prefix, suffix = '', tag + prefix = self.namespacemap.get(prefix, prefix) + if prefix: + prefix = prefix + '_' + + # special hack for better tracking of empty textinput/image elements in illformed feeds + if (not prefix) and tag not in ('title', 'link', 'description', 'name'): + self.intextinput = 0 + if (not prefix) and tag not in ('title', 'link', 'description', 'url', 'href', 'width', 'height'): + self.inimage = 0 + + # call special handler (if defined) or default handler + methodname = '_start_' + prefix + suffix + try: + method = getattr(self, methodname) + return method(attrsD) + except AttributeError: + # Since there's no handler or something has gone wrong we explicitly add the element and its attributes + unknown_tag = prefix + suffix + if len(attrsD) == 0: + # No attributes so merge it into the enclosing dictionary + return self.push(unknown_tag, 1) + else: + # Has attributes so create it in its own dictionary + context = self._getContext() + context[unknown_tag] = attrsD + + def unknown_endtag(self, tag): + # match namespaces + if tag.find(':') != -1: + prefix, suffix = tag.split(':', 1) + else: + prefix, suffix = '', tag + prefix = self.namespacemap.get(prefix, prefix) + if prefix: + prefix = prefix + '_' + if suffix == 'svg' and self.svgOK: + self.svgOK -= 1 + + # call special handler (if defined) or default handler + methodname = '_end_' + prefix + suffix + try: + if self.svgOK: + raise AttributeError() + method = getattr(self, methodname) + method() + except AttributeError: + self.pop(prefix + suffix) + + # track inline content + if self.incontent and not self.contentparams.get('type', 'xml').endswith('xml'): + # element declared itself as escaped markup, but it isn't really + if tag in ('xhtml:div', 'div'): + return # typepad does this 10/2007 + self.contentparams['type'] = 'application/xhtml+xml' + if self.incontent and self.contentparams.get('type') == 'application/xhtml+xml': + tag = tag.split(':')[-1] + self.handle_data('' % tag, escape=0) + + # track xml:base and xml:lang going out of scope + if self.basestack: + self.basestack.pop() + if self.basestack and self.basestack[-1]: + self.baseuri = self.basestack[-1] + if self.langstack: + self.langstack.pop() + if self.langstack: # and (self.langstack[-1] is not None): + self.lang = self.langstack[-1] + + self.depth -= 1 + + def handle_charref(self, ref): + # called for each character reference, e.g. for ' ', ref will be '160' + if not self.elementstack: + return + ref = ref.lower() + if ref in ('34', '38', '39', '60', '62', 'x22', 'x26', 'x27', 'x3c', 'x3e'): + text = '&#%s;' % ref + else: + if ref[0] == 'x': + c = int(ref[1:], 16) + else: + c = int(ref) + text = chr(c).encode('utf-8') + self.elementstack[-1][2].append(text) + + def handle_entityref(self, ref): + # called for each entity reference, e.g. for '©', ref will be 'copy' + if not self.elementstack: + return + if ref in ('lt', 'gt', 'quot', 'amp', 'apos'): + text = '&%s;' % ref + elif ref in self.entities: + text = self.entities[ref] + if text.startswith('&#') and text.endswith(';'): + return self.handle_entityref(text) + else: + try: + name2codepoint[ref] + except KeyError: + text = '&%s;' % ref + else: + text = chr(name2codepoint[ref]).encode('utf-8') + self.elementstack[-1][2].append(text) + + def handle_data(self, text, escape=1): + # called for each block of plain text, i.e. outside of any tag and + # not containing any character or entity references + if not self.elementstack: + return + if escape and self.contentparams.get('type') == 'application/xhtml+xml': + text = _xmlescape(text) + self.elementstack[-1][2].append(text) + + def handle_comment(self, text): + # called for each comment, e.g. + pass + + def handle_pi(self, text): + # called for each processing instruction, e.g. + pass + + def handle_decl(self, text): + pass + + def parse_declaration(self, i): + # override internal declaration handler to handle CDATA blocks + if self.rawdata[i:i+9] == '', i) + if k == -1: + # CDATA block began but didn't finish + k = len(self.rawdata) + return k + self.handle_data(_xmlescape(self.rawdata[i+9:k]), 0) + return k+3 + else: + k = self.rawdata.find('>', i) + if k >= 0: + return k+1 + else: + # We have an incomplete CDATA block. + return k + + def mapContentType(self, contentType): + contentType = contentType.lower() + if contentType == 'text' or contentType == 'plain': + contentType = 'text/plain' + elif contentType == 'html': + contentType = 'text/html' + elif contentType == 'xhtml': + contentType = 'application/xhtml+xml' + return contentType + + def trackNamespace(self, prefix, uri): + loweruri = uri.lower() + if not self.version: + if (prefix, loweruri) == (None, 'http://my.netscape.com/rdf/simple/0.9/'): + self.version = 'rss090' + elif loweruri == 'http://purl.org/rss/1.0/': + self.version = 'rss10' + elif loweruri == 'http://www.w3.org/2005/atom': + self.version = 'atom10' + if loweruri.find('backend.userland.com/rss') != -1: + # match any backend.userland.com namespace + uri = 'http://backend.userland.com/rss' + loweruri = uri + if loweruri in self._matchnamespaces: + self.namespacemap[prefix] = self._matchnamespaces[loweruri] + self.namespacesInUse[self._matchnamespaces[loweruri]] = uri + else: + self.namespacesInUse[prefix or ''] = uri + + def resolveURI(self, uri): + return _urljoin(self.baseuri or '', uri) + + def decodeEntities(self, element, data): + return data + + def strattrs(self, attrs): + return ''.join([' %s="%s"' % (t[0],_xmlescape(t[1],{'"':'"'})) for t in attrs]) + + def push(self, element, expectingText): + self.elementstack.append([element, expectingText, []]) + + def pop(self, element, stripWhitespace=1): + if not self.elementstack: + return + if self.elementstack[-1][0] != element: + return + + element, expectingText, pieces = self.elementstack.pop() + + if self.version == 'atom10' and self.contentparams.get('type', 'text') == 'application/xhtml+xml': + # remove enclosing child element, but only if it is a
and + # only if all the remaining content is nested underneath it. + # This means that the divs would be retained in the following: + #
foo
bar
+ while pieces and len(pieces)>1 and not pieces[-1].strip(): + del pieces[-1] + while pieces and len(pieces)>1 and not pieces[0].strip(): + del pieces[0] + if pieces and (pieces[0] == '
' or pieces[0].startswith('
': + depth = 0 + for piece in pieces[:-1]: + if piece.startswith(''): + depth += 1 + else: + pieces = pieces[1:-1] + + # Ensure each piece is a str for Python 3 + for (i, v) in enumerate(pieces): + if isinstance(v, bytes_): + pieces[i] = v.decode('utf-8') + + output = ''.join(pieces) + if stripWhitespace: + output = output.strip() + if not expectingText: + return output + + # decode base64 content + if base64 and self.contentparams.get('base64', 0): + try: + output = _base64decode(output) + except binascii.Error: + pass + except binascii.Incomplete: + pass + except TypeError: + # In Python 3, base64 takes and outputs bytes, not str + # This may not be the most correct way to accomplish this + output = _base64decode(output.encode('utf-8')).decode('utf-8') + + # resolve relative URIs + if (element in self.can_be_relative_uri) and output: + # do not resolve guid elements with isPermalink="false" + if not element == 'id' or self.guidislink: + output = self.resolveURI(output) + + # decode entities within embedded markup + if not self.contentparams.get('base64', 0): + output = self.decodeEntities(element, output) + + # some feed formats require consumers to guess + # whether the content is html or plain text + if not self.version.startswith('atom') and self.contentparams.get('type') == 'text/plain': + if self.lookslikehtml(output): + self.contentparams['type'] = 'text/html' + + # remove temporary cruft from contentparams + try: + del self.contentparams['mode'] + except KeyError: + pass + try: + del self.contentparams['base64'] + except KeyError: + pass + + is_htmlish = self.mapContentType(self.contentparams.get('type', 'text/html')) in self.html_types + # resolve relative URIs within embedded markup + if is_htmlish and RESOLVE_RELATIVE_URIS: + if element in self.can_contain_relative_uris: + output = _resolveRelativeURIs(output, self.baseuri, self.encoding, self.contentparams.get('type', 'text/html')) + + # sanitize embedded markup + if is_htmlish and SANITIZE_HTML: + if element in self.can_contain_dangerous_markup: + output = _sanitizeHTML(output, self.encoding, self.contentparams.get('type', 'text/html')) + + if self.encoding and isinstance(output, bytes_): + output = output.decode(self.encoding, 'ignore') + + # address common error where people take data that is already + # utf-8, presume that it is iso-8859-1, and re-encode it. + if self.encoding in ('utf-8', 'utf-8_INVALID_PYTHON_3') and not isinstance(output, bytes_): + try: + output = output.encode('iso-8859-1').decode('utf-8') + except (UnicodeEncodeError, UnicodeDecodeError): + pass + + # map win-1252 extensions to the proper code points + if not isinstance(output, bytes_): + output = output.translate(_cp1252) + + # categories/tags/keywords/whatever are handled in _end_category or _end_tags or _end_itunes_keywords + if element in ('category', 'tags', 'itunes_keywords'): + return output + + if element == 'title' and -1 < self.title_depth <= self.depth: + return output + + # store output in appropriate place(s) + if self.inentry and not self.insource: + if element == 'content': + self.entries[-1].setdefault(element, []) + contentparams = copy.deepcopy(self.contentparams) + contentparams['value'] = output + self.entries[-1][element].append(contentparams) + elif element == 'link': + if not self.inimage: + # query variables in urls in link elements are improperly + # converted from `?a=1&b=2` to `?a=1&b;=2` as if they're + # unhandled character references. fix this special case. + output = output.replace('&', '&') + output = re.sub("&([A-Za-z0-9_]+);", "&\g<1>", output) + self.entries[-1][element] = output + if output: + self.entries[-1]['links'][-1]['href'] = output + else: + if element == 'description': + element = 'summary' + old_value_depth = self.property_depth_map.setdefault(self.entries[-1], {}).get(element) + if old_value_depth is None or self.depth <= old_value_depth: + self.property_depth_map[self.entries[-1]][element] = self.depth + self.entries[-1][element] = output + if self.incontent: + contentparams = copy.deepcopy(self.contentparams) + contentparams['value'] = output + self.entries[-1][element + '_detail'] = contentparams + elif (self.infeed or self.insource):# and (not self.intextinput) and (not self.inimage): + context = self._getContext() + if element == 'description': + element = 'subtitle' + context[element] = output + if element == 'link': + # fix query variables; see above for the explanation + output = re.sub("&([A-Za-z0-9_]+);", "&\g<1>", output) + context[element] = output + context['links'][-1]['href'] = output + elif self.incontent: + contentparams = copy.deepcopy(self.contentparams) + contentparams['value'] = output + context[element + '_detail'] = contentparams + return output + + def pushContent(self, tag, attrsD, defaultContentType, expectingText): + self.incontent += 1 + if self.lang: + self.lang=self.lang.replace('_','-') + self.contentparams = FeedParserDict({ + 'type': self.mapContentType(attrsD.get('type', defaultContentType)), + 'language': self.lang, + 'base': self.baseuri}) + self.contentparams['base64'] = self._isBase64(attrsD, self.contentparams) + self.push(tag, expectingText) + + def popContent(self, tag): + value = self.pop(tag) + self.incontent -= 1 + self.contentparams.clear() + return value + + # a number of elements in a number of RSS variants are nominally plain + # text, but this is routinely ignored. This is an attempt to detect + # the most common cases. As false positives often result in silent + # data loss, this function errs on the conservative side. + @staticmethod + def lookslikehtml(s): + # must have a close tag or an entity reference to qualify + if not (re.search(r'', s) or re.search(r'&#?\w+;', s)): + return + + # all tags must be in a restricted subset of valid HTML tags + if any((t for t in re.findall(r'', '') + author = author.replace('<>', '') + author = author.strip() + if author and (author[0] == '('): + author = author[1:] + if author and (author[-1] == ')'): + author = author[:-1] + author = author.strip() + if author or email: + context.setdefault('%s_detail' % key, detail) + if author: + detail['name'] = author + if email: + detail['email'] = email + + def _addTag(self, term, scheme, label): + context = self._getContext() + tags = context.setdefault('tags', []) + if (not term) and (not scheme) and (not label): + return + value = FeedParserDict(term=term, scheme=scheme, label=label) + if value not in tags: + tags.append(value) + + def _start_tags(self, attrsD): + # This is a completely-made up element. Its semantics are determined + # only by a single feed that precipitated bug report 392 on Google Code. + # In short, this is junk code. + self.push('tags', 1) + + def _end_tags(self): + for term in self.pop('tags').split(','): + self._addTag(term.strip(), None, None) diff --git a/lib/feedparser/namespaces/__init__.py b/lib/feedparser/namespaces/__init__.py new file mode 100644 index 00000000..e69de29b diff --git a/lib/feedparser/namespaces/_base.py b/lib/feedparser/namespaces/_base.py new file mode 100644 index 00000000..f25edb62 --- /dev/null +++ b/lib/feedparser/namespaces/_base.py @@ -0,0 +1,499 @@ +# Support for the Atom, RSS, RDF, and CDF feed formats +# Copyright 2010-2015 Kurt McKee +# Copyright 2002-2008 Mark Pilgrim +# All rights reserved. +# +# This file is a part of feedparser. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +from __future__ import absolute_import, unicode_literals + +import copy + +from ..datetimes import registerDateHandler, _parse_date +from ..urls import _makeSafeAbsoluteURI +from ..util import FeedParserDict + +class Namespace(object): + """Support for the Atom, RSS, RDF, and CDF feed formats. + + The feed formats all share common elements, some of which have conflicting + interpretations. For simplicity, all of the base feed format support is + collected here. + """ + + supported_namespaces = { + '': '', + 'http://backend.userland.com/rss': '', + 'http://blogs.law.harvard.edu/tech/rss': '', + 'http://purl.org/rss/1.0/': '', + 'http://my.netscape.com/rdf/simple/0.9/': '', + 'http://example.com/newformat#': '', + 'http://example.com/necho': '', + 'http://purl.org/echo/': '', + 'uri/of/echo/namespace#': '', + 'http://purl.org/pie/': '', + 'http://purl.org/atom/ns#': '', + 'http://www.w3.org/2005/Atom': '', + 'http://purl.org/rss/1.0/modules/rss091#': '', + } + + def _start_rss(self, attrsD): + versionmap = {'0.91': 'rss091u', + '0.92': 'rss092', + '0.93': 'rss093', + '0.94': 'rss094'} + #If we're here then this is an RSS feed. + #If we don't have a version or have a version that starts with something + #other than RSS then there's been a mistake. Correct it. + if not self.version or not self.version.startswith('rss'): + attr_version = attrsD.get('version', '') + version = versionmap.get(attr_version) + if version: + self.version = version + elif attr_version.startswith('2.'): + self.version = 'rss20' + else: + self.version = 'rss' + + def _start_channel(self, attrsD): + self.infeed = 1 + self._cdf_common(attrsD) + + def _cdf_common(self, attrsD): + if 'lastmod' in attrsD: + self._start_modified({}) + self.elementstack[-1][-1] = attrsD['lastmod'] + self._end_modified() + if 'href' in attrsD: + self._start_link({}) + self.elementstack[-1][-1] = attrsD['href'] + self._end_link() + + def _start_feed(self, attrsD): + self.infeed = 1 + versionmap = {'0.1': 'atom01', + '0.2': 'atom02', + '0.3': 'atom03'} + if not self.version: + attr_version = attrsD.get('version') + version = versionmap.get(attr_version) + if version: + self.version = version + else: + self.version = 'atom' + + def _end_channel(self): + self.infeed = 0 + _end_feed = _end_channel + + def _start_image(self, attrsD): + context = self._getContext() + if not self.inentry: + context.setdefault('image', FeedParserDict()) + self.inimage = 1 + self.title_depth = -1 + self.push('image', 0) + + def _end_image(self): + self.pop('image') + self.inimage = 0 + + def _start_textinput(self, attrsD): + context = self._getContext() + context.setdefault('textinput', FeedParserDict()) + self.intextinput = 1 + self.title_depth = -1 + self.push('textinput', 0) + _start_textInput = _start_textinput + + def _end_textinput(self): + self.pop('textinput') + self.intextinput = 0 + _end_textInput = _end_textinput + + def _start_author(self, attrsD): + self.inauthor = 1 + self.push('author', 1) + # Append a new FeedParserDict when expecting an author + context = self._getContext() + context.setdefault('authors', []) + context['authors'].append(FeedParserDict()) + _start_managingeditor = _start_author + + def _end_author(self): + self.pop('author') + self.inauthor = 0 + self._sync_author_detail() + _end_managingeditor = _end_author + + def _start_contributor(self, attrsD): + self.incontributor = 1 + context = self._getContext() + context.setdefault('contributors', []) + context['contributors'].append(FeedParserDict()) + self.push('contributor', 0) + + def _end_contributor(self): + self.pop('contributor') + self.incontributor = 0 + + def _start_name(self, attrsD): + self.push('name', 0) + + def _end_name(self): + value = self.pop('name') + if self.inpublisher: + self._save_author('name', value, 'publisher') + elif self.inauthor: + self._save_author('name', value) + elif self.incontributor: + self._save_contributor('name', value) + elif self.intextinput: + context = self._getContext() + context['name'] = value + + def _start_width(self, attrsD): + self.push('width', 0) + + def _end_width(self): + value = self.pop('width') + try: + value = int(value) + except ValueError: + value = 0 + if self.inimage: + context = self._getContext() + context['width'] = value + + def _start_height(self, attrsD): + self.push('height', 0) + + def _end_height(self): + value = self.pop('height') + try: + value = int(value) + except ValueError: + value = 0 + if self.inimage: + context = self._getContext() + context['height'] = value + + def _start_url(self, attrsD): + self.push('href', 1) + _start_homepage = _start_url + _start_uri = _start_url + + def _end_url(self): + value = self.pop('href') + if self.inauthor: + self._save_author('href', value) + elif self.incontributor: + self._save_contributor('href', value) + _end_homepage = _end_url + _end_uri = _end_url + + def _start_email(self, attrsD): + self.push('email', 0) + + def _end_email(self): + value = self.pop('email') + if self.inpublisher: + self._save_author('email', value, 'publisher') + elif self.inauthor: + self._save_author('email', value) + elif self.incontributor: + self._save_contributor('email', value) + + def _start_subtitle(self, attrsD): + self.pushContent('subtitle', attrsD, 'text/plain', 1) + _start_tagline = _start_subtitle + + def _end_subtitle(self): + self.popContent('subtitle') + _end_tagline = _end_subtitle + + def _start_rights(self, attrsD): + self.pushContent('rights', attrsD, 'text/plain', 1) + _start_copyright = _start_rights + + def _end_rights(self): + self.popContent('rights') + _end_copyright = _end_rights + + def _start_item(self, attrsD): + self.entries.append(FeedParserDict()) + self.push('item', 0) + self.inentry = 1 + self.guidislink = 0 + self.title_depth = -1 + id = self._getAttribute(attrsD, 'rdf:about') + if id: + context = self._getContext() + context['id'] = id + self._cdf_common(attrsD) + _start_entry = _start_item + + def _end_item(self): + self.pop('item') + self.inentry = 0 + _end_entry = _end_item + + def _start_language(self, attrsD): + self.push('language', 1) + + def _end_language(self): + self.lang = self.pop('language') + + def _start_webmaster(self, attrsD): + self.push('publisher', 1) + + def _end_webmaster(self): + self.pop('publisher') + self._sync_author_detail('publisher') + + def _start_published(self, attrsD): + self.push('published', 1) + _start_issued = _start_published + _start_pubdate = _start_published + + def _end_published(self): + value = self.pop('published') + self._save('published_parsed', _parse_date(value), overwrite=True) + _end_issued = _end_published + _end_pubdate = _end_published + + def _start_updated(self, attrsD): + self.push('updated', 1) + _start_modified = _start_updated + _start_lastbuilddate = _start_updated + + def _end_updated(self): + value = self.pop('updated') + parsed_value = _parse_date(value) + self._save('updated_parsed', parsed_value, overwrite=True) + _end_modified = _end_updated + _end_lastbuilddate = _end_updated + + def _start_created(self, attrsD): + self.push('created', 1) + + def _end_created(self): + value = self.pop('created') + self._save('created_parsed', _parse_date(value), overwrite=True) + + def _start_expirationdate(self, attrsD): + self.push('expired', 1) + + def _end_expirationdate(self): + self._save('expired_parsed', _parse_date(self.pop('expired')), overwrite=True) + + def _start_category(self, attrsD): + term = attrsD.get('term') + scheme = attrsD.get('scheme', attrsD.get('domain')) + label = attrsD.get('label') + self._addTag(term, scheme, label) + self.push('category', 1) + _start_keywords = _start_category + + def _end_category(self): + value = self.pop('category') + if not value: + return + context = self._getContext() + tags = context['tags'] + if value and len(tags) and not tags[-1]['term']: + tags[-1]['term'] = value + else: + self._addTag(value, None, None) + _end_keywords = _end_category + + def _start_cloud(self, attrsD): + self._getContext()['cloud'] = FeedParserDict(attrsD) + + def _start_link(self, attrsD): + attrsD.setdefault('rel', 'alternate') + if attrsD['rel'] == 'self': + attrsD.setdefault('type', 'application/atom+xml') + else: + attrsD.setdefault('type', 'text/html') + context = self._getContext() + attrsD = self._itsAnHrefDamnIt(attrsD) + if 'href' in attrsD: + attrsD['href'] = self.resolveURI(attrsD['href']) + expectingText = self.infeed or self.inentry or self.insource + context.setdefault('links', []) + if not (self.inentry and self.inimage): + context['links'].append(FeedParserDict(attrsD)) + if 'href' in attrsD: + expectingText = 0 + if (attrsD.get('rel') == 'alternate') and (self.mapContentType(attrsD.get('type')) in self.html_types): + context['link'] = attrsD['href'] + else: + self.push('link', expectingText) + + def _end_link(self): + value = self.pop('link') + + def _start_guid(self, attrsD): + self.guidislink = (attrsD.get('ispermalink', 'true') == 'true') + self.push('id', 1) + _start_id = _start_guid + + def _end_guid(self): + value = self.pop('id') + self._save('guidislink', self.guidislink and 'link' not in self._getContext()) + if self.guidislink: + # guid acts as link, but only if 'ispermalink' is not present or is 'true', + # and only if the item doesn't already have a link element + self._save('link', value) + _end_id = _end_guid + + def _start_title(self, attrsD): + if self.svgOK: + return self.unknown_starttag('title', list(attrsD.items())) + self.pushContent('title', attrsD, 'text/plain', self.infeed or self.inentry or self.insource) + + def _end_title(self): + if self.svgOK: + return + value = self.popContent('title') + if not value: + return + self.title_depth = self.depth + + def _start_description(self, attrsD): + context = self._getContext() + if 'summary' in context: + self._summaryKey = 'content' + self._start_content(attrsD) + else: + self.pushContent('description', attrsD, 'text/html', self.infeed or self.inentry or self.insource) + + def _start_abstract(self, attrsD): + self.pushContent('description', attrsD, 'text/plain', self.infeed or self.inentry or self.insource) + + def _end_description(self): + if self._summaryKey == 'content': + self._end_content() + else: + value = self.popContent('description') + self._summaryKey = None + _end_abstract = _end_description + + def _start_info(self, attrsD): + self.pushContent('info', attrsD, 'text/plain', 1) + _start_feedburner_browserfriendly = _start_info + + def _end_info(self): + self.popContent('info') + _end_feedburner_browserfriendly = _end_info + + def _start_generator(self, attrsD): + if attrsD: + attrsD = self._itsAnHrefDamnIt(attrsD) + if 'href' in attrsD: + attrsD['href'] = self.resolveURI(attrsD['href']) + self._getContext()['generator_detail'] = FeedParserDict(attrsD) + self.push('generator', 1) + + def _end_generator(self): + value = self.pop('generator') + context = self._getContext() + if 'generator_detail' in context: + context['generator_detail']['name'] = value + + def _start_summary(self, attrsD): + context = self._getContext() + if 'summary' in context: + self._summaryKey = 'content' + self._start_content(attrsD) + else: + self._summaryKey = 'summary' + self.pushContent(self._summaryKey, attrsD, 'text/plain', 1) + + def _end_summary(self): + if self._summaryKey == 'content': + self._end_content() + else: + self.popContent(self._summaryKey or 'summary') + self._summaryKey = None + + def _start_enclosure(self, attrsD): + attrsD = self._itsAnHrefDamnIt(attrsD) + context = self._getContext() + attrsD['rel'] = 'enclosure' + context.setdefault('links', []).append(FeedParserDict(attrsD)) + + def _start_source(self, attrsD): + if 'url' in attrsD: + # This means that we're processing a source element from an RSS 2.0 feed + self.sourcedata['href'] = attrsD['url'] + self.push('source', 1) + self.insource = 1 + self.title_depth = -1 + + def _end_source(self): + self.insource = 0 + value = self.pop('source') + if value: + self.sourcedata['title'] = value + self._getContext()['source'] = copy.deepcopy(self.sourcedata) + self.sourcedata.clear() + + def _start_content(self, attrsD): + self.pushContent('content', attrsD, 'text/plain', 1) + src = attrsD.get('src') + if src: + self.contentparams['src'] = src + self.push('content', 1) + + def _start_body(self, attrsD): + self.pushContent('content', attrsD, 'application/xhtml+xml', 1) + _start_xhtml_body = _start_body + + def _start_content_encoded(self, attrsD): + self.pushContent('content', attrsD, 'text/html', 1) + _start_fullitem = _start_content_encoded + + def _end_content(self): + copyToSummary = self.mapContentType(self.contentparams.get('type')) in (['text/plain'] + self.html_types) + value = self.popContent('content') + if copyToSummary: + self._save('summary', value) + + _end_body = _end_content + _end_xhtml_body = _end_content + _end_content_encoded = _end_content + _end_fullitem = _end_content + + def _start_newlocation(self, attrsD): + self.push('newlocation', 1) + + def _end_newlocation(self): + url = self.pop('newlocation') + context = self._getContext() + # don't set newlocation if the context isn't right + if context is not self.feeddata: + return + context['newlocation'] = _makeSafeAbsoluteURI(self.baseuri, url.strip()) diff --git a/lib/feedparser/namespaces/admin.py b/lib/feedparser/namespaces/admin.py new file mode 100644 index 00000000..7c663aef --- /dev/null +++ b/lib/feedparser/namespaces/admin.py @@ -0,0 +1,55 @@ +# Support for the administrative elements extension +# Copyright 2010-2015 Kurt McKee +# Copyright 2002-2008 Mark Pilgrim +# All rights reserved. +# +# This file is a part of feedparser. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +from __future__ import absolute_import, unicode_literals + +from ..util import FeedParserDict + +class Namespace(object): + # RDF Site Summary 1.0 Modules: Administrative + # http://web.resource.org/rss/1.0/modules/admin/ + + supported_namespaces = { + 'http://webns.net/mvcb/': 'admin', + } + + def _start_admin_generatoragent(self, attrsD): + self.push('generator', 1) + value = self._getAttribute(attrsD, 'rdf:resource') + if value: + self.elementstack[-1][2].append(value) + self.pop('generator') + self._getContext()['generator_detail'] = FeedParserDict({'href': value}) + + def _start_admin_errorreportsto(self, attrsD): + self.push('errorreportsto', 1) + value = self._getAttribute(attrsD, 'rdf:resource') + if value: + self.elementstack[-1][2].append(value) + self.pop('errorreportsto') + diff --git a/lib/feedparser/namespaces/cc.py b/lib/feedparser/namespaces/cc.py new file mode 100644 index 00000000..6d8d3933 --- /dev/null +++ b/lib/feedparser/namespaces/cc.py @@ -0,0 +1,71 @@ +# Support for the Creative Commons licensing extensions +# Copyright 2010-2015 Kurt McKee +# Copyright 2002-2008 Mark Pilgrim +# All rights reserved. +# +# This file is a part of feedparser. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +from __future__ import absolute_import, unicode_literals + +from ..util import FeedParserDict + +class Namespace(object): + supported_namespaces = { + # RDF-based namespace + 'http://creativecommons.org/ns#license': 'cc', + + # Old RDF-based namespace + 'http://web.resource.org/cc/': 'cc', + + # RSS-based namespace + 'http://cyber.law.harvard.edu/rss/creativeCommonsRssModule.html': 'creativecommons', + + # Old RSS-based namespace + 'http://backend.userland.com/creativeCommonsRssModule': 'creativecommons', + } + + def _start_cc_license(self, attrsD): + context = self._getContext() + value = self._getAttribute(attrsD, 'rdf:resource') + attrsD = FeedParserDict() + attrsD['rel'] = 'license' + if value: + attrsD['href'] = value + context.setdefault('links', []).append(attrsD) + + def _start_creativecommons_license(self, attrsD): + self.push('license', 1) + _start_creativeCommons_license = _start_creativecommons_license + + def _end_creativecommons_license(self): + value = self.pop('license') + context = self._getContext() + attrsD = FeedParserDict() + attrsD['rel'] = 'license' + if value: + attrsD['href'] = value + context.setdefault('links', []).append(attrsD) + del context['license'] + _end_creativeCommons_license = _end_creativecommons_license + diff --git a/lib/feedparser/namespaces/dc.py b/lib/feedparser/namespaces/dc.py new file mode 100644 index 00000000..035bbadd --- /dev/null +++ b/lib/feedparser/namespaces/dc.py @@ -0,0 +1,136 @@ +# Support for the Dublin Core metadata extensions +# Copyright 2010-2015 Kurt McKee +# Copyright 2002-2008 Mark Pilgrim +# All rights reserved. +# +# This file is a part of feedparser. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +from __future__ import absolute_import, unicode_literals + +from ..util import FeedParserDict +from ..datetimes import _parse_date + +class Namespace(object): + supported_namespaces = { + 'http://purl.org/dc/elements/1.1/': 'dc', + 'http://purl.org/dc/terms/': 'dcterms', + } + + def _end_dc_author(self): + self._end_author() + + def _end_dc_creator(self): + self._end_author() + + def _end_dc_date(self): + self._end_updated() + + def _end_dc_description(self): + self._end_description() + + def _end_dc_language(self): + self._end_language() + + def _end_dc_publisher(self): + self._end_webmaster() + + def _end_dc_rights(self): + self._end_rights() + + def _end_dc_subject(self): + self._end_category() + + def _end_dc_title(self): + self._end_title() + + def _end_dcterms_created(self): + self._end_created() + + def _end_dcterms_issued(self): + self._end_published() + + def _end_dcterms_modified(self): + self._end_updated() + + def _start_dc_author(self, attrsD): + self._start_author(attrsD) + + def _start_dc_creator(self, attrsD): + self._start_author(attrsD) + + def _start_dc_date(self, attrsD): + self._start_updated(attrsD) + + def _start_dc_description(self, attrsD): + self._start_description(attrsD) + + def _start_dc_language(self, attrsD): + self._start_language(attrsD) + + def _start_dc_publisher(self, attrsD): + self._start_webmaster(attrsD) + + def _start_dc_rights(self, attrsD): + self._start_rights(attrsD) + + def _start_dc_subject(self, attrsD): + self._start_category(attrsD) + + def _start_dc_title(self, attrsD): + self._start_title(attrsD) + + def _start_dcterms_created(self, attrsD): + self._start_created(attrsD) + + def _start_dcterms_issued(self, attrsD): + self._start_published(attrsD) + + def _start_dcterms_modified(self, attrsD): + self._start_updated(attrsD) + + def _start_dcterms_valid(self, attrsD): + self.push('validity', 1) + + def _end_dcterms_valid(self): + for validity_detail in self.pop('validity').split(';'): + if '=' in validity_detail: + key, value = validity_detail.split('=', 1) + if key == 'start': + self._save('validity_start', value, overwrite=True) + self._save('validity_start_parsed', _parse_date(value), overwrite=True) + elif key == 'end': + self._save('validity_end', value, overwrite=True) + self._save('validity_end_parsed', _parse_date(value), overwrite=True) + + def _start_dc_contributor(self, attrsD): + self.incontributor = 1 + context = self._getContext() + context.setdefault('contributors', []) + context['contributors'].append(FeedParserDict()) + self.push('name', 0) + + def _end_dc_contributor(self): + self._end_name() + self.incontributor = 0 + diff --git a/lib/feedparser/namespaces/georss.py b/lib/feedparser/namespaces/georss.py new file mode 100644 index 00000000..347ceb65 --- /dev/null +++ b/lib/feedparser/namespaces/georss.py @@ -0,0 +1,264 @@ +# Support for the GeoRSS format +# Copyright 2010-2015 Kurt McKee +# Copyright 2002-2008 Mark Pilgrim +# All rights reserved. +# +# This file is a part of feedparser. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +from __future__ import absolute_import, unicode_literals + +from ..util import FeedParserDict + +class Namespace(object): + supported_namespaces = { + 'http://www.w3.org/2003/01/geo/wgs84_pos#': 'geo', + 'http://www.georss.org/georss': 'georss', + 'http://www.opengis.net/gml': 'gml', + } + + def __init__(self): + self.ingeometry = 0 + super(Namespace, self).__init__() + + def _start_georssgeom(self, attrsD): + self.push('geometry', 0) + context = self._getContext() + context['where'] = FeedParserDict() + + _start_georss_point = _start_georssgeom + _start_georss_line = _start_georssgeom + _start_georss_polygon = _start_georssgeom + _start_georss_box = _start_georssgeom + + def _save_where(self, geometry): + context = self._getContext() + context['where'].update(geometry) + + def _end_georss_point(self): + geometry = _parse_georss_point(self.pop('geometry')) + if geometry: + self._save_where(geometry) + + def _end_georss_line(self): + geometry = _parse_georss_line(self.pop('geometry')) + if geometry: + self._save_where(geometry) + + def _end_georss_polygon(self): + this = self.pop('geometry') + geometry = _parse_georss_polygon(this) + if geometry: + self._save_where(geometry) + + def _end_georss_box(self): + geometry = _parse_georss_box(self.pop('geometry')) + if geometry: + self._save_where(geometry) + + def _start_where(self, attrsD): + self.push('where', 0) + context = self._getContext() + context['where'] = FeedParserDict() + _start_georss_where = _start_where + + def _parse_srs_attrs(self, attrsD): + srsName = attrsD.get('srsname') + try: + srsDimension = int(attrsD.get('srsdimension', '2')) + except ValueError: + srsDimension = 2 + context = self._getContext() + context['where']['srsName'] = srsName + context['where']['srsDimension'] = srsDimension + + def _start_gml_point(self, attrsD): + self._parse_srs_attrs(attrsD) + self.ingeometry = 1 + self.push('geometry', 0) + + def _start_gml_linestring(self, attrsD): + self._parse_srs_attrs(attrsD) + self.ingeometry = 'linestring' + self.push('geometry', 0) + + def _start_gml_polygon(self, attrsD): + self._parse_srs_attrs(attrsD) + self.push('geometry', 0) + + def _start_gml_exterior(self, attrsD): + self.push('geometry', 0) + + def _start_gml_linearring(self, attrsD): + self.ingeometry = 'polygon' + self.push('geometry', 0) + + def _start_gml_pos(self, attrsD): + self.push('pos', 0) + + def _end_gml_pos(self): + this = self.pop('pos') + context = self._getContext() + srsName = context['where'].get('srsName') + srsDimension = context['where'].get('srsDimension', 2) + swap = True + if srsName and "EPSG" in srsName: + epsg = int(srsName.split(":")[-1]) + swap = bool(epsg in _geogCS) + geometry = _parse_georss_point(this, swap=swap, dims=srsDimension) + if geometry: + self._save_where(geometry) + + def _start_gml_poslist(self, attrsD): + self.push('pos', 0) + + def _end_gml_poslist(self): + this = self.pop('pos') + context = self._getContext() + srsName = context['where'].get('srsName') + srsDimension = context['where'].get('srsDimension', 2) + swap = True + if srsName and "EPSG" in srsName: + epsg = int(srsName.split(":")[-1]) + swap = bool(epsg in _geogCS) + geometry = _parse_poslist( + this, self.ingeometry, swap=swap, dims=srsDimension) + if geometry: + self._save_where(geometry) + + def _end_geom(self): + self.ingeometry = 0 + self.pop('geometry') + _end_gml_point = _end_geom + _end_gml_linestring = _end_geom + _end_gml_linearring = _end_geom + _end_gml_exterior = _end_geom + _end_gml_polygon = _end_geom + + def _end_where(self): + self.pop('where') + _end_georss_where = _end_where + + +# GeoRSS geometry parsers. Each return a dict with 'type' and 'coordinates' +# items, or None in the case of a parsing error. + +def _parse_poslist(value, geom_type, swap=True, dims=2): + if geom_type == 'linestring': + return _parse_georss_line(value, swap, dims) + elif geom_type == 'polygon': + ring = _parse_georss_line(value, swap, dims) + return {'type': 'Polygon', 'coordinates': (ring['coordinates'],)} + else: + return None + +def _gen_georss_coords(value, swap=True, dims=2): + # A generator of (lon, lat) pairs from a string of encoded GeoRSS + # coordinates. Converts to floats and swaps order. + latlons = (float(ll) for ll in value.replace(',', ' ').split()) + while True: + t = [next(latlons), next(latlons)][::swap and -1 or 1] + if dims == 3: + t.append(next(latlons)) + yield tuple(t) + +def _parse_georss_point(value, swap=True, dims=2): + # A point contains a single latitude-longitude pair, separated by + # whitespace. We'll also handle comma separators. + try: + coords = list(_gen_georss_coords(value, swap, dims)) + return {'type': 'Point', 'coordinates': coords[0]} + except (IndexError, ValueError): + return None + +def _parse_georss_line(value, swap=True, dims=2): + # A line contains a space separated list of latitude-longitude pairs in + # WGS84 coordinate reference system, with each pair separated by + # whitespace. There must be at least two pairs. + try: + coords = list(_gen_georss_coords(value, swap, dims)) + return {'type': 'LineString', 'coordinates': coords} + except (IndexError, ValueError): + return None + +def _parse_georss_polygon(value, swap=True, dims=2): + # A polygon contains a space separated list of latitude-longitude pairs, + # with each pair separated by whitespace. There must be at least four + # pairs, with the last being identical to the first (so a polygon has a + # minimum of three actual points). + try: + ring = list(_gen_georss_coords(value, swap, dims)) + except (IndexError, ValueError): + return None + if len(ring) < 4: + return None + return {'type': 'Polygon', 'coordinates': (ring,)} + +def _parse_georss_box(value, swap=True, dims=2): + # A bounding box is a rectangular region, often used to define the extents + # of a map or a rough area of interest. A box contains two space separate + # latitude-longitude pairs, with each pair separated by whitespace. The + # first pair is the lower corner, the second is the upper corner. + try: + coords = list(_gen_georss_coords(value, swap, dims)) + return {'type': 'Box', 'coordinates': tuple(coords)} + except (IndexError, ValueError): + return None + +# The list of EPSG codes for geographic (latitude/longitude) coordinate +# systems to support decoding of GeoRSS GML profiles. +_geogCS = [ +3819, 3821, 3824, 3889, 3906, 4001, 4002, 4003, 4004, 4005, 4006, 4007, 4008, +4009, 4010, 4011, 4012, 4013, 4014, 4015, 4016, 4018, 4019, 4020, 4021, 4022, +4023, 4024, 4025, 4027, 4028, 4029, 4030, 4031, 4032, 4033, 4034, 4035, 4036, +4041, 4042, 4043, 4044, 4045, 4046, 4047, 4052, 4053, 4054, 4055, 4075, 4081, +4120, 4121, 4122, 4123, 4124, 4125, 4126, 4127, 4128, 4129, 4130, 4131, 4132, +4133, 4134, 4135, 4136, 4137, 4138, 4139, 4140, 4141, 4142, 4143, 4144, 4145, +4146, 4147, 4148, 4149, 4150, 4151, 4152, 4153, 4154, 4155, 4156, 4157, 4158, +4159, 4160, 4161, 4162, 4163, 4164, 4165, 4166, 4167, 4168, 4169, 4170, 4171, +4172, 4173, 4174, 4175, 4176, 4178, 4179, 4180, 4181, 4182, 4183, 4184, 4185, +4188, 4189, 4190, 4191, 4192, 4193, 4194, 4195, 4196, 4197, 4198, 4199, 4200, +4201, 4202, 4203, 4204, 4205, 4206, 4207, 4208, 4209, 4210, 4211, 4212, 4213, +4214, 4215, 4216, 4218, 4219, 4220, 4221, 4222, 4223, 4224, 4225, 4226, 4227, +4228, 4229, 4230, 4231, 4232, 4233, 4234, 4235, 4236, 4237, 4238, 4239, 4240, +4241, 4242, 4243, 4244, 4245, 4246, 4247, 4248, 4249, 4250, 4251, 4252, 4253, +4254, 4255, 4256, 4257, 4258, 4259, 4260, 4261, 4262, 4263, 4264, 4265, 4266, +4267, 4268, 4269, 4270, 4271, 4272, 4273, 4274, 4275, 4276, 4277, 4278, 4279, +4280, 4281, 4282, 4283, 4284, 4285, 4286, 4287, 4288, 4289, 4291, 4292, 4293, +4294, 4295, 4296, 4297, 4298, 4299, 4300, 4301, 4302, 4303, 4304, 4306, 4307, +4308, 4309, 4310, 4311, 4312, 4313, 4314, 4315, 4316, 4317, 4318, 4319, 4322, +4324, 4326, 4463, 4470, 4475, 4483, 4490, 4555, 4558, 4600, 4601, 4602, 4603, +4604, 4605, 4606, 4607, 4608, 4609, 4610, 4611, 4612, 4613, 4614, 4615, 4616, +4617, 4618, 4619, 4620, 4621, 4622, 4623, 4624, 4625, 4626, 4627, 4628, 4629, +4630, 4631, 4632, 4633, 4634, 4635, 4636, 4637, 4638, 4639, 4640, 4641, 4642, +4643, 4644, 4645, 4646, 4657, 4658, 4659, 4660, 4661, 4662, 4663, 4664, 4665, +4666, 4667, 4668, 4669, 4670, 4671, 4672, 4673, 4674, 4675, 4676, 4677, 4678, +4679, 4680, 4681, 4682, 4683, 4684, 4685, 4686, 4687, 4688, 4689, 4690, 4691, +4692, 4693, 4694, 4695, 4696, 4697, 4698, 4699, 4700, 4701, 4702, 4703, 4704, +4705, 4706, 4707, 4708, 4709, 4710, 4711, 4712, 4713, 4714, 4715, 4716, 4717, +4718, 4719, 4720, 4721, 4722, 4723, 4724, 4725, 4726, 4727, 4728, 4729, 4730, +4731, 4732, 4733, 4734, 4735, 4736, 4737, 4738, 4739, 4740, 4741, 4742, 4743, +4744, 4745, 4746, 4747, 4748, 4749, 4750, 4751, 4752, 4753, 4754, 4755, 4756, +4757, 4758, 4759, 4760, 4761, 4762, 4763, 4764, 4765, 4801, 4802, 4803, 4804, +4805, 4806, 4807, 4808, 4809, 4810, 4811, 4813, 4814, 4815, 4816, 4817, 4818, +4819, 4820, 4821, 4823, 4824, 4901, 4902, 4903, 4904, 4979 ] diff --git a/lib/feedparser/namespaces/itunes.py b/lib/feedparser/namespaces/itunes.py new file mode 100644 index 00000000..37faa7e4 --- /dev/null +++ b/lib/feedparser/namespaces/itunes.py @@ -0,0 +1,111 @@ +# Support for the iTunes format +# Copyright 2010-2015 Kurt McKee +# Copyright 2002-2008 Mark Pilgrim +# All rights reserved. +# +# This file is a part of feedparser. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +from __future__ import absolute_import, unicode_literals + +from ..util import FeedParserDict + +class Namespace(object): + supported_namespaces = { + # Canonical namespace + 'http://www.itunes.com/DTDs/PodCast-1.0.dtd': 'itunes', + + # Extra namespace + 'http://example.com/DTDs/PodCast-1.0.dtd': 'itunes', + } + + def _start_itunes_author(self, attrsD): + self._start_author(attrsD) + + def _end_itunes_author(self): + self._end_author() + + def _end_itunes_category(self): + self._end_category() + + def _start_itunes_name(self, attrsD): + self._start_name(attrsD) + + def _end_itunes_name(self): + self._end_name() + + def _start_itunes_email(self, attrsD): + self._start_email(attrsD) + + def _end_itunes_email(self): + self._end_email() + + def _start_itunes_subtitle(self, attrsD): + self._start_subtitle(attrsD) + + def _end_itunes_subtitle(self): + self._end_subtitle() + + def _start_itunes_summary(self, attrsD): + self._start_summary(attrsD) + + def _end_itunes_summary(self): + self._end_summary() + + def _start_itunes_owner(self, attrsD): + self.inpublisher = 1 + self.push('publisher', 0) + + def _end_itunes_owner(self): + self.pop('publisher') + self.inpublisher = 0 + self._sync_author_detail('publisher') + + def _end_itunes_keywords(self): + for term in self.pop('itunes_keywords').split(','): + if term.strip(): + self._addTag(term.strip(), 'http://www.itunes.com/', None) + + def _start_itunes_category(self, attrsD): + self._addTag(attrsD.get('text'), 'http://www.itunes.com/', None) + self.push('category', 1) + + def _start_itunes_image(self, attrsD): + self.push('itunes_image', 0) + if attrsD.get('href'): + self._getContext()['image'] = FeedParserDict({'href': attrsD.get('href')}) + elif attrsD.get('url'): + self._getContext()['image'] = FeedParserDict({'href': attrsD.get('url')}) + _start_itunes_link = _start_itunes_image + + def _end_itunes_block(self): + value = self.pop('itunes_block', 0) + self._getContext()['itunes_block'] = (value == 'yes') and 1 or 0 + + def _end_itunes_explicit(self): + value = self.pop('itunes_explicit', 0) + # Convert 'yes' -> True, 'clean' to False, and any other value to None + # False and None both evaluate as False, so the difference can be ignored + # by applications that only need to know if the content is explicit. + self._getContext()['itunes_explicit'] = (None, False, True)[(value == 'yes' and 2) or value == 'clean' or 0] + diff --git a/lib/feedparser/namespaces/mediarss.py b/lib/feedparser/namespaces/mediarss.py new file mode 100644 index 00000000..878ed7c8 --- /dev/null +++ b/lib/feedparser/namespaces/mediarss.py @@ -0,0 +1,142 @@ +# Support for the Media RSS format +# Copyright 2010-2015 Kurt McKee +# Copyright 2002-2008 Mark Pilgrim +# All rights reserved. +# +# This file is a part of feedparser. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +from __future__ import absolute_import, unicode_literals + +from ..util import FeedParserDict + +class Namespace(object): + supported_namespaces = { + # Canonical namespace + 'http://search.yahoo.com/mrss/': 'media', + + # Old namespace (no trailing slash) + 'http://search.yahoo.com/mrss': 'media', + } + + def _start_media_category(self, attrsD): + attrsD.setdefault('scheme', 'http://search.yahoo.com/mrss/category_schema') + self._start_category(attrsD) + + def _end_media_category(self): + self._end_category() + + def _end_media_keywords(self): + for term in self.pop('media_keywords').split(','): + if term.strip(): + self._addTag(term.strip(), None, None) + + def _start_media_title(self, attrsD): + self._start_title(attrsD) + + def _end_media_title(self): + title_depth = self.title_depth + self._end_title() + self.title_depth = title_depth + + def _start_media_group(self, attrsD): + # don't do anything, but don't break the enclosed tags either + pass + + def _start_media_rating(self, attrsD): + context = self._getContext() + context.setdefault('media_rating', attrsD) + self.push('rating', 1) + + def _end_media_rating(self): + rating = self.pop('rating') + if rating is not None and rating.strip(): + context = self._getContext() + context['media_rating']['content'] = rating + + def _start_media_credit(self, attrsD): + context = self._getContext() + context.setdefault('media_credit', []) + context['media_credit'].append(attrsD) + self.push('credit', 1) + + def _end_media_credit(self): + credit = self.pop('credit') + if credit != None and len(credit.strip()) != 0: + context = self._getContext() + context['media_credit'][-1]['content'] = credit + + def _start_media_description(self, attrsD): + self._start_description(attrsD) + + def _end_media_description(self): + self._end_description() + + def _start_media_restriction(self, attrsD): + context = self._getContext() + context.setdefault('media_restriction', attrsD) + self.push('restriction', 1) + + def _end_media_restriction(self): + restriction = self.pop('restriction') + if restriction != None and len(restriction.strip()) != 0: + context = self._getContext() + context['media_restriction']['content'] = [cc.strip().lower() for cc in restriction.split(' ')] + + def _start_media_license(self, attrsD): + context = self._getContext() + context.setdefault('media_license', attrsD) + self.push('license', 1) + + def _end_media_license(self): + license = self.pop('license') + if license != None and len(license.strip()) != 0: + context = self._getContext() + context['media_license']['content'] = license + + def _start_media_content(self, attrsD): + context = self._getContext() + context.setdefault('media_content', []) + context['media_content'].append(attrsD) + + def _start_media_thumbnail(self, attrsD): + context = self._getContext() + context.setdefault('media_thumbnail', []) + self.push('url', 1) # new + context['media_thumbnail'].append(attrsD) + + def _end_media_thumbnail(self): + url = self.pop('url') + context = self._getContext() + if url != None and len(url.strip()) != 0: + if 'url' not in context['media_thumbnail'][-1]: + context['media_thumbnail'][-1]['url'] = url + + def _start_media_player(self, attrsD): + self.push('media_player', 0) + self._getContext()['media_player'] = FeedParserDict(attrsD) + + def _end_media_player(self): + value = self.pop('media_player') + context = self._getContext() + context['media_player']['content'] = value diff --git a/lib/feedparser/namespaces/psc.py b/lib/feedparser/namespaces/psc.py new file mode 100644 index 00000000..c7dc843e --- /dev/null +++ b/lib/feedparser/namespaces/psc.py @@ -0,0 +1,72 @@ +# Support for the Podlove Simple Chapters format +# Copyright 2010-2015 Kurt McKee +# Copyright 2002-2008 Mark Pilgrim +# All rights reserved. +# +# This file is a part of feedparser. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +from __future__ import absolute_import, unicode_literals + +import datetime +import re + +from .. import util +class Namespace(object): + supported_namespaces = { + 'http://podlove.org/simple-chapters': 'psc', + } + + def __init__(self): + # chapters will only be captured while psc_chapters_flag is True. + self.psc_chapters_flag = False + super(Namespace, self).__init__() + + def _start_psc_chapters(self, attrsD): + context = self._getContext() + if 'psc_chapters' not in context: + self.psc_chapters_flag = True + attrsD['chapters'] = [] + context['psc_chapters'] = util.FeedParserDict(attrsD) + + def _end_psc_chapters(self): + self.psc_chapters_flag = False + + def _start_psc_chapter(self, attrsD): + if self.psc_chapters_flag: + start = self._getAttribute(attrsD, 'start') + attrsD['start_parsed'] = _parse_psc_chapter_start(start) + + context = self._getContext()['psc_chapters'] + context['chapters'].append(util.FeedParserDict(attrsD)) + +def _parse_psc_chapter_start(start): + FORMAT = r'^((\d{2}):)?(\d{2}):(\d{2})(\.(\d{3}))?$' + + m = re.compile(FORMAT).match(start) + if m is None: + return None + + _, h, m, s, _, ms = m.groups() + h, m, s, ms = (int(h or 0), int(m), int(s), int(ms or 0)) + return datetime.timedelta(0, h*60*60 + m*60 + s, ms*1000) diff --git a/lib/feedparser/parsers/__init__.py b/lib/feedparser/parsers/__init__.py new file mode 100644 index 00000000..e69de29b diff --git a/lib/feedparser/parsers/loose.py b/lib/feedparser/parsers/loose.py new file mode 100644 index 00000000..597ce8b7 --- /dev/null +++ b/lib/feedparser/parsers/loose.py @@ -0,0 +1,72 @@ +# The loose feed parser that interfaces with an SGML parsing library +# Copyright 2010-2015 Kurt McKee +# Copyright 2002-2008 Mark Pilgrim +# All rights reserved. +# +# This file is a part of feedparser. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +from __future__ import absolute_import, unicode_literals + +class _LooseFeedParser(object): + def __init__(self, baseuri=None, baselang=None, encoding=None, entities=None): + self.baseuri = baseuri or '' + self.lang = baselang or None + self.encoding = encoding or 'utf-8' # character encoding + self.entities = entities or {} + super(_LooseFeedParser, self).__init__() + + def _normalize_attributes(self, kv): + k = kv[0].lower() + v = k in ('rel', 'type') and kv[1].lower() or kv[1] + # the sgml parser doesn't handle entities in attributes, nor + # does it pass the attribute values through as unicode, while + # strict xml parsers do -- account for this difference + v = v.replace('&', '&') + return (k, v) + + def decodeEntities(self, element, data): + data = data.replace('<', '<') + data = data.replace('<', '<') + data = data.replace('<', '<') + data = data.replace('>', '>') + data = data.replace('>', '>') + data = data.replace('>', '>') + data = data.replace('&', '&') + data = data.replace('&', '&') + data = data.replace('"', '"') + data = data.replace('"', '"') + data = data.replace(''', ''') + data = data.replace(''', ''') + if not self.contentparams.get('type', 'xml').endswith('xml'): + data = data.replace('<', '<') + data = data.replace('>', '>') + data = data.replace('&', '&') + data = data.replace('"', '"') + data = data.replace(''', "'") + data = data.replace('/', '/') + data = data.replace('/', '/') + return data + + def strattrs(self, attrs): + return ''.join([' %s="%s"' % (n,v.replace('"','"')) for n,v in attrs]) diff --git a/lib/feedparser/parsers/strict.py b/lib/feedparser/parsers/strict.py new file mode 100644 index 00000000..29ad2be3 --- /dev/null +++ b/lib/feedparser/parsers/strict.py @@ -0,0 +1,135 @@ +# The strict feed parser that interfaces with an XML parsing library +# Copyright 2010-2015 Kurt McKee +# Copyright 2002-2008 Mark Pilgrim +# All rights reserved. +# +# This file is a part of feedparser. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +from __future__ import absolute_import, unicode_literals + +from ..exceptions import UndeclaredNamespace + +class _StrictFeedParser(object): + def __init__(self, baseuri, baselang, encoding): + self.bozo = 0 + self.exc = None + self.decls = {} + self.baseuri = baseuri or '' + self.lang = baselang + self.encoding = encoding + super(_StrictFeedParser, self).__init__() + + def _normalize_attributes(self, kv): + k = kv[0].lower() + v = k in ('rel', 'type') and kv[1].lower() or kv[1] + return (k, v) + + def startPrefixMapping(self, prefix, uri): + if not uri: + return + # Jython uses '' instead of None; standardize on None + prefix = prefix or None + self.trackNamespace(prefix, uri) + if prefix and uri == 'http://www.w3.org/1999/xlink': + self.decls['xmlns:' + prefix] = uri + + def startElementNS(self, name, qname, attrs): + namespace, localname = name + lowernamespace = str(namespace or '').lower() + if lowernamespace.find('backend.userland.com/rss') != -1: + # match any backend.userland.com namespace + namespace = 'http://backend.userland.com/rss' + lowernamespace = namespace + if qname and qname.find(':') > 0: + givenprefix = qname.split(':')[0] + else: + givenprefix = None + prefix = self._matchnamespaces.get(lowernamespace, givenprefix) + if givenprefix and (prefix == None or (prefix == '' and lowernamespace == '')) and givenprefix not in self.namespacesInUse: + raise UndeclaredNamespace("'%s' is not associated with a namespace" % givenprefix) + localname = str(localname).lower() + + # qname implementation is horribly broken in Python 2.1 (it + # doesn't report any), and slightly broken in Python 2.2 (it + # doesn't report the xml: namespace). So we match up namespaces + # with a known list first, and then possibly override them with + # the qnames the SAX parser gives us (if indeed it gives us any + # at all). Thanks to MatejC for helping me test this and + # tirelessly telling me that it didn't work yet. + attrsD, self.decls = self.decls, {} + if localname=='math' and namespace=='http://www.w3.org/1998/Math/MathML': + attrsD['xmlns']=namespace + if localname=='svg' and namespace=='http://www.w3.org/2000/svg': + attrsD['xmlns']=namespace + + if prefix: + localname = prefix.lower() + ':' + localname + elif namespace and not qname: #Expat + for name,value in self.namespacesInUse.items(): + if name and value == namespace: + localname = name + ':' + localname + break + + for (namespace, attrlocalname), attrvalue in attrs.items(): + lowernamespace = (namespace or '').lower() + prefix = self._matchnamespaces.get(lowernamespace, '') + if prefix: + attrlocalname = prefix + ':' + attrlocalname + attrsD[str(attrlocalname).lower()] = attrvalue + for qname in attrs.getQNames(): + attrsD[str(qname).lower()] = attrs.getValueByQName(qname) + localname = str(localname).lower() + self.unknown_starttag(localname, list(attrsD.items())) + + def characters(self, text): + self.handle_data(text) + + def endElementNS(self, name, qname): + namespace, localname = name + lowernamespace = str(namespace or '').lower() + if qname and qname.find(':') > 0: + givenprefix = qname.split(':')[0] + else: + givenprefix = '' + prefix = self._matchnamespaces.get(lowernamespace, givenprefix) + if prefix: + localname = prefix + ':' + localname + elif namespace and not qname: #Expat + for name,value in self.namespacesInUse.items(): + if name and value == namespace: + localname = name + ':' + localname + break + localname = str(localname).lower() + self.unknown_endtag(localname) + + def error(self, exc): + self.bozo = 1 + self.exc = exc + + # drv_libxml2 calls warning() in some cases + warning = error + + def fatalError(self, exc): + self.error(exc) + raise exc diff --git a/lib/feedparser/sanitizer.py b/lib/feedparser/sanitizer.py new file mode 100644 index 00000000..04096b3a --- /dev/null +++ b/lib/feedparser/sanitizer.py @@ -0,0 +1,466 @@ +from __future__ import absolute_import, unicode_literals + +import re + +from .html import _BaseHTMLProcessor +from .sgml import _SGML_AVAILABLE +from .urls import _makeSafeAbsoluteURI + +class _HTMLSanitizer(_BaseHTMLProcessor): + acceptable_elements = set(['a', 'abbr', 'acronym', 'address', 'area', + 'article', 'aside', 'audio', 'b', 'big', 'blockquote', 'br', 'button', + 'canvas', 'caption', 'center', 'cite', 'code', 'col', 'colgroup', + 'command', 'datagrid', 'datalist', 'dd', 'del', 'details', 'dfn', + 'dialog', 'dir', 'div', 'dl', 'dt', 'em', 'event-source', 'fieldset', + 'figcaption', 'figure', 'footer', 'font', 'form', 'header', 'h1', + 'h2', 'h3', 'h4', 'h5', 'h6', 'hr', 'i', 'img', 'input', 'ins', + 'keygen', 'kbd', 'label', 'legend', 'li', 'm', 'map', 'menu', 'meter', + 'multicol', 'nav', 'nextid', 'ol', 'output', 'optgroup', 'option', + 'p', 'pre', 'progress', 'q', 's', 'samp', 'section', 'select', + 'small', 'sound', 'source', 'spacer', 'span', 'strike', 'strong', + 'sub', 'sup', 'table', 'tbody', 'td', 'textarea', 'time', 'tfoot', + 'th', 'thead', 'tr', 'tt', 'u', 'ul', 'var', 'video', 'noscript']) + + acceptable_attributes = set(['abbr', 'accept', 'accept-charset', 'accesskey', + 'action', 'align', 'alt', 'autocomplete', 'autofocus', 'axis', + 'background', 'balance', 'bgcolor', 'bgproperties', 'border', + 'bordercolor', 'bordercolordark', 'bordercolorlight', 'bottompadding', + 'cellpadding', 'cellspacing', 'ch', 'challenge', 'char', 'charoff', + 'choff', 'charset', 'checked', 'cite', 'class', 'clear', 'color', 'cols', + 'colspan', 'compact', 'contenteditable', 'controls', 'coords', 'data', + 'datafld', 'datapagesize', 'datasrc', 'datetime', 'default', 'delay', + 'dir', 'disabled', 'draggable', 'dynsrc', 'enctype', 'end', 'face', 'for', + 'form', 'frame', 'galleryimg', 'gutter', 'headers', 'height', 'hidefocus', + 'hidden', 'high', 'href', 'hreflang', 'hspace', 'icon', 'id', 'inputmode', + 'ismap', 'keytype', 'label', 'leftspacing', 'lang', 'list', 'longdesc', + 'loop', 'loopcount', 'loopend', 'loopstart', 'low', 'lowsrc', 'max', + 'maxlength', 'media', 'method', 'min', 'multiple', 'name', 'nohref', + 'noshade', 'nowrap', 'open', 'optimum', 'pattern', 'ping', 'point-size', + 'poster', 'pqg', 'preload', 'prompt', 'radiogroup', 'readonly', 'rel', + 'repeat-max', 'repeat-min', 'replace', 'required', 'rev', 'rightspacing', + 'rows', 'rowspan', 'rules', 'scope', 'selected', 'shape', 'size', 'span', + 'src', 'start', 'step', 'summary', 'suppress', 'tabindex', 'target', + 'template', 'title', 'toppadding', 'type', 'unselectable', 'usemap', + 'urn', 'valign', 'value', 'variable', 'volume', 'vspace', 'vrml', + 'width', 'wrap', 'xml:lang']) + + unacceptable_elements_with_end_tag = set(['script', 'applet', 'style']) + + acceptable_css_properties = set(['azimuth', 'background-color', + 'border-bottom-color', 'border-collapse', 'border-color', + 'border-left-color', 'border-right-color', 'border-top-color', 'clear', + 'color', 'cursor', 'direction', 'display', 'elevation', 'float', 'font', + 'font-family', 'font-size', 'font-style', 'font-variant', 'font-weight', + 'height', 'letter-spacing', 'line-height', 'overflow', 'pause', + 'pause-after', 'pause-before', 'pitch', 'pitch-range', 'richness', + 'speak', 'speak-header', 'speak-numeral', 'speak-punctuation', + 'speech-rate', 'stress', 'text-align', 'text-decoration', 'text-indent', + 'unicode-bidi', 'vertical-align', 'voice-family', 'volume', + 'white-space', 'width']) + + # survey of common keywords found in feeds + acceptable_css_keywords = set(['auto', 'aqua', 'black', 'block', 'blue', + 'bold', 'both', 'bottom', 'brown', 'center', 'collapse', 'dashed', + 'dotted', 'fuchsia', 'gray', 'green', '!important', 'italic', 'left', + 'lime', 'maroon', 'medium', 'none', 'navy', 'normal', 'nowrap', 'olive', + 'pointer', 'purple', 'red', 'right', 'solid', 'silver', 'teal', 'top', + 'transparent', 'underline', 'white', 'yellow']) + + valid_css_values = re.compile('^(#[0-9a-f]+|rgb\(\d+%?,\d*%?,?\d*%?\)?|' + + '\d{0,2}\.?\d{0,2}(cm|em|ex|in|mm|pc|pt|px|%|,|\))?)$') + + mathml_elements = set([ + 'annotation', + 'annotation-xml', + 'maction', + 'maligngroup', + 'malignmark', + 'math', + 'menclose', + 'merror', + 'mfenced', + 'mfrac', + 'mglyph', + 'mi', + 'mlabeledtr', + 'mlongdiv', + 'mmultiscripts', + 'mn', + 'mo', + 'mover', + 'mpadded', + 'mphantom', + 'mprescripts', + 'mroot', + 'mrow', + 'ms', + 'mscarries', + 'mscarry', + 'msgroup', + 'msline', + 'mspace', + 'msqrt', + 'msrow', + 'mstack', + 'mstyle', + 'msub', + 'msubsup', + 'msup', + 'mtable', + 'mtd', + 'mtext', + 'mtr', + 'munder', + 'munderover', + 'none', + 'semantics', + ]) + + mathml_attributes = set([ + 'accent', + 'accentunder', + 'actiontype', + 'align', + 'alignmentscope', + 'altimg', + 'altimg-height', + 'altimg-valign', + 'altimg-width', + 'alttext', + 'bevelled', + 'charalign', + 'close', + 'columnalign', + 'columnlines', + 'columnspacing', + 'columnspan', + 'columnwidth', + 'crossout', + 'decimalpoint', + 'denomalign', + 'depth', + 'dir', + 'display', + 'displaystyle', + 'edge', + 'encoding', + 'equalcolumns', + 'equalrows', + 'fence', + 'fontstyle', + 'fontweight', + 'form', + 'frame', + 'framespacing', + 'groupalign', + 'height', + 'href', + 'id', + 'indentalign', + 'indentalignfirst', + 'indentalignlast', + 'indentshift', + 'indentshiftfirst', + 'indentshiftlast', + 'indenttarget', + 'infixlinebreakstyle', + 'largeop', + 'length', + 'linebreak', + 'linebreakmultchar', + 'linebreakstyle', + 'lineleading', + 'linethickness', + 'location', + 'longdivstyle', + 'lquote', + 'lspace', + 'mathbackground', + 'mathcolor', + 'mathsize', + 'mathvariant', + 'maxsize', + 'minlabelspacing', + 'minsize', + 'movablelimits', + 'notation', + 'numalign', + 'open', + 'other', + 'overflow', + 'position', + 'rowalign', + 'rowlines', + 'rowspacing', + 'rowspan', + 'rquote', + 'rspace', + 'scriptlevel', + 'scriptminsize', + 'scriptsizemultiplier', + 'selection', + 'separator', + 'separators', + 'shift', + 'side', + 'src', + 'stackalign', + 'stretchy', + 'subscriptshift', + 'superscriptshift', + 'symmetric', + 'voffset', + 'width', + 'xlink:href', + 'xlink:show', + 'xlink:type', + 'xmlns', + 'xmlns:xlink', + ]) + + # svgtiny - foreignObject + linearGradient + radialGradient + stop + svg_elements = set(['a', 'animate', 'animateColor', 'animateMotion', + 'animateTransform', 'circle', 'defs', 'desc', 'ellipse', 'foreignObject', + 'font-face', 'font-face-name', 'font-face-src', 'g', 'glyph', 'hkern', + 'linearGradient', 'line', 'marker', 'metadata', 'missing-glyph', 'mpath', + 'path', 'polygon', 'polyline', 'radialGradient', 'rect', 'set', 'stop', + 'svg', 'switch', 'text', 'title', 'tspan', 'use']) + + # svgtiny + class + opacity + offset + xmlns + xmlns:xlink + svg_attributes = set(['accent-height', 'accumulate', 'additive', 'alphabetic', + 'arabic-form', 'ascent', 'attributeName', 'attributeType', + 'baseProfile', 'bbox', 'begin', 'by', 'calcMode', 'cap-height', + 'class', 'color', 'color-rendering', 'content', 'cx', 'cy', 'd', 'dx', + 'dy', 'descent', 'display', 'dur', 'end', 'fill', 'fill-opacity', + 'fill-rule', 'font-family', 'font-size', 'font-stretch', 'font-style', + 'font-variant', 'font-weight', 'from', 'fx', 'fy', 'g1', 'g2', + 'glyph-name', 'gradientUnits', 'hanging', 'height', 'horiz-adv-x', + 'horiz-origin-x', 'id', 'ideographic', 'k', 'keyPoints', 'keySplines', + 'keyTimes', 'lang', 'mathematical', 'marker-end', 'marker-mid', + 'marker-start', 'markerHeight', 'markerUnits', 'markerWidth', 'max', + 'min', 'name', 'offset', 'opacity', 'orient', 'origin', + 'overline-position', 'overline-thickness', 'panose-1', 'path', + 'pathLength', 'points', 'preserveAspectRatio', 'r', 'refX', 'refY', + 'repeatCount', 'repeatDur', 'requiredExtensions', 'requiredFeatures', + 'restart', 'rotate', 'rx', 'ry', 'slope', 'stemh', 'stemv', + 'stop-color', 'stop-opacity', 'strikethrough-position', + 'strikethrough-thickness', 'stroke', 'stroke-dasharray', + 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', + 'stroke-miterlimit', 'stroke-opacity', 'stroke-width', 'systemLanguage', + 'target', 'text-anchor', 'to', 'transform', 'type', 'u1', 'u2', + 'underline-position', 'underline-thickness', 'unicode', 'unicode-range', + 'units-per-em', 'values', 'version', 'viewBox', 'visibility', 'width', + 'widths', 'x', 'x-height', 'x1', 'x2', 'xlink:actuate', 'xlink:arcrole', + 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', + 'xml:base', 'xml:lang', 'xml:space', 'xmlns', 'xmlns:xlink', 'y', 'y1', + 'y2', 'zoomAndPan']) + + svg_attr_map = None + svg_elem_map = None + + acceptable_svg_properties = set([ 'fill', 'fill-opacity', 'fill-rule', + 'stroke', 'stroke-width', 'stroke-linecap', 'stroke-linejoin', + 'stroke-opacity']) + + def reset(self): + _BaseHTMLProcessor.reset(self) + self.unacceptablestack = 0 + self.mathmlOK = 0 + self.svgOK = 0 + + def unknown_starttag(self, tag, attrs): + acceptable_attributes = self.acceptable_attributes + keymap = {} + if not tag in self.acceptable_elements or self.svgOK: + if tag in self.unacceptable_elements_with_end_tag: + self.unacceptablestack += 1 + + # add implicit namespaces to html5 inline svg/mathml + if self._type.endswith('html'): + if not dict(attrs).get('xmlns'): + if tag=='svg': + attrs.append( ('xmlns','http://www.w3.org/2000/svg') ) + if tag=='math': + attrs.append( ('xmlns','http://www.w3.org/1998/Math/MathML') ) + + # not otherwise acceptable, perhaps it is MathML or SVG? + if tag=='math' and ('xmlns','http://www.w3.org/1998/Math/MathML') in attrs: + self.mathmlOK += 1 + if tag=='svg' and ('xmlns','http://www.w3.org/2000/svg') in attrs: + self.svgOK += 1 + + # chose acceptable attributes based on tag class, else bail + if self.mathmlOK and tag in self.mathml_elements: + acceptable_attributes = self.mathml_attributes + elif self.svgOK and tag in self.svg_elements: + # for most vocabularies, lowercasing is a good idea. Many + # svg elements, however, are camel case + if not self.svg_attr_map: + lower=[attr.lower() for attr in self.svg_attributes] + mix=[a for a in self.svg_attributes if a not in lower] + self.svg_attributes = lower + self.svg_attr_map = dict([(a.lower(),a) for a in mix]) + + lower=[attr.lower() for attr in self.svg_elements] + mix=[a for a in self.svg_elements if a not in lower] + self.svg_elements = lower + self.svg_elem_map = dict([(a.lower(),a) for a in mix]) + acceptable_attributes = self.svg_attributes + tag = self.svg_elem_map.get(tag,tag) + keymap = self.svg_attr_map + elif not tag in self.acceptable_elements: + return + + # declare xlink namespace, if needed + if self.mathmlOK or self.svgOK: + if any((a for a in attrs if a[0].startswith('xlink:'))): + if not ('xmlns:xlink','http://www.w3.org/1999/xlink') in attrs: + attrs.append(('xmlns:xlink','http://www.w3.org/1999/xlink')) + + clean_attrs = [] + for key, value in self.normalize_attrs(attrs): + if key in acceptable_attributes: + key=keymap.get(key,key) + # make sure the uri uses an acceptable uri scheme + if key == 'href': + value = _makeSafeAbsoluteURI(value) + clean_attrs.append((key,value)) + elif key=='style': + clean_value = self.sanitize_style(value) + if clean_value: + clean_attrs.append((key,clean_value)) + _BaseHTMLProcessor.unknown_starttag(self, tag, clean_attrs) + + def unknown_endtag(self, tag): + if not tag in self.acceptable_elements: + if tag in self.unacceptable_elements_with_end_tag: + self.unacceptablestack -= 1 + if self.mathmlOK and tag in self.mathml_elements: + if tag == 'math' and self.mathmlOK: + self.mathmlOK -= 1 + elif self.svgOK and tag in self.svg_elements: + tag = self.svg_elem_map.get(tag,tag) + if tag == 'svg' and self.svgOK: + self.svgOK -= 1 + else: + return + _BaseHTMLProcessor.unknown_endtag(self, tag) + + def handle_pi(self, text): + pass + + def handle_decl(self, text): + pass + + def handle_data(self, text): + if not self.unacceptablestack: + _BaseHTMLProcessor.handle_data(self, text) + + def sanitize_style(self, style): + # disallow urls + style=re.compile('url\s*\(\s*[^\s)]+?\s*\)\s*').sub(' ',style) + + # gauntlet + if not re.match("""^([:,;#%.\sa-zA-Z0-9!]|\w-\w|'[\s\w]+'|"[\s\w]+"|\([\d,\s]+\))*$""", style): + return '' + # This replaced a regexp that used re.match and was prone to pathological back-tracking. + if re.sub("\s*[-\w]+\s*:\s*[^:;]*;?", '', style).strip(): + return '' + + clean = [] + for prop,value in re.findall("([-\w]+)\s*:\s*([^:;]*)",style): + if not value: + continue + if prop.lower() in self.acceptable_css_properties: + clean.append(prop + ': ' + value + ';') + elif prop.split('-')[0].lower() in ['background','border','margin','padding']: + for keyword in value.split(): + if not keyword in self.acceptable_css_keywords and \ + not self.valid_css_values.match(keyword): + break + else: + clean.append(prop + ': ' + value + ';') + elif self.svgOK and prop.lower() in self.acceptable_svg_properties: + clean.append(prop + ': ' + value + ';') + + return ' '.join(clean) + + def parse_comment(self, i, report=1): + ret = _BaseHTMLProcessor.parse_comment(self, i, report) + if ret >= 0: + return ret + # if ret == -1, this may be a malicious attempt to circumvent + # sanitization, or a page-destroying unclosed comment + match = re.compile(r'--[^>]*>').search(self.rawdata, i+4) + if match: + return match.end() + # unclosed comment; deliberately fail to handle_data() + return len(self.rawdata) + + +def _sanitizeHTML(htmlSource, encoding, _type): + if not _SGML_AVAILABLE: + return htmlSource + p = _HTMLSanitizer(encoding, _type) + htmlSource = htmlSource.replace(' +RE_ENTITY_PATTERN = re.compile(br'^\s*]*?)>', re.MULTILINE) + +# Match XML DOCTYPE declarations. +# Example: +RE_DOCTYPE_PATTERN = re.compile(br'^\s*]*?)>', re.MULTILINE) + +# Match safe entity declarations. +# This will allow hexadecimal character references through, +# as well as text, but not arbitrary nested entities. +# Example: cubed "³" +# Example: copyright "(C)" +# Forbidden: explode1 "&explode2;&explode2;" +RE_SAFE_ENTITY_PATTERN = re.compile(b'\s+(\w+)\s+"(&#\w+;|[^&"]*)"') + +def replace_doctype(data): + '''Strips and replaces the DOCTYPE, returns (rss_version, stripped_data) + + rss_version may be 'rss091n' or None + stripped_data is the same XML document with a replaced DOCTYPE + ''' + + # Divide the document into two groups by finding the location + # of the first element that doesn't begin with '\n\n]>' + data = RE_DOCTYPE_PATTERN.sub(replacement, head) + data + + # Precompute the safe entities for the loose parser. + safe_entities = dict((k.decode('utf-8'), v.decode('utf-8')) + for k, v in RE_SAFE_ENTITY_PATTERN.findall(replacement)) + return version, data, safe_entities diff --git a/lib/feedparser/sgml.py b/lib/feedparser/sgml.py new file mode 100644 index 00000000..9bccd569 --- /dev/null +++ b/lib/feedparser/sgml.py @@ -0,0 +1,76 @@ +from __future__ import absolute_import + +import re + +__all__ = [ + '_SGML_AVAILABLE', + 'sgmllib', + 'charref', + 'tagfind', + 'attrfind', + 'entityref', + 'incomplete', + 'interesting', + 'shorttag', + 'shorttagopen', + 'starttagopen', + 'endbracket', +] + +# sgmllib is not available by default in Python 3; if the end user doesn't have +# it available then we'll lose illformed XML parsing and content sanitizing +try: + import sgmllib +except ImportError: + # This is probably Python 3, which doesn't include sgmllib anymore + _SGML_AVAILABLE = 0 + + # Mock sgmllib enough to allow subclassing later on + class sgmllib(object): + class SGMLParser(object): + def goahead(self, i): + pass + def parse_starttag(self, i): + pass +else: + _SGML_AVAILABLE = 1 + + # sgmllib defines a number of module-level regular expressions that are + # insufficient for the XML parsing feedparser needs. Rather than modify + # the variables directly in sgmllib, they're defined here using the same + # names, and the compiled code objects of several sgmllib.SGMLParser + # methods are copied into _BaseHTMLProcessor so that they execute in + # feedparser's scope instead of sgmllib's scope. + charref = re.compile('&#(\d+|[xX][0-9a-fA-F]+);') + tagfind = re.compile('[a-zA-Z][-_.:a-zA-Z0-9]*') + attrfind = re.compile( + r'\s*([a-zA-Z_][-:.a-zA-Z_0-9]*)[$]?(\s*=\s*' + r'(\'[^\']*\'|"[^"]*"|[][\-a-zA-Z0-9./,:;+*%?!&$\(\)_#=~\'"@]*))?' + ) + + # Unfortunately, these must be copied over to prevent NameError exceptions + entityref = sgmllib.entityref + incomplete = sgmllib.incomplete + interesting = sgmllib.interesting + shorttag = sgmllib.shorttag + shorttagopen = sgmllib.shorttagopen + starttagopen = sgmllib.starttagopen + + class _EndBracketRegEx: + def __init__(self): + # Overriding the built-in sgmllib.endbracket regex allows the + # parser to find angle brackets embedded in element attributes. + self.endbracket = re.compile('''([^'"<>]|"[^"]*"(?=>|/|\s|\w+=)|'[^']*'(?=>|/|\s|\w+=))*(?=[<>])|.*?(?=[<>])''') + def search(self, target, index=0): + match = self.endbracket.match(target, index) + if match is not None: + # Returning a new object in the calling thread's context + # resolves a thread-safety. + return EndBracketMatch(match) + return None + class EndBracketMatch: + def __init__(self, match): + self.match = match + def start(self, n): + return self.match.end(n) + endbracket = _EndBracketRegEx() diff --git a/lib/feedparser/sgmllib3.py b/lib/feedparser/sgmllib3.py deleted file mode 100644 index 88a02a30..00000000 --- a/lib/feedparser/sgmllib3.py +++ /dev/null @@ -1,547 +0,0 @@ -"""A parser for SGML, using the derived class as a static DTD.""" - -# XXX This only supports those SGML features used by HTML. - -# XXX There should be a way to distinguish between PCDATA (parsed -# character data -- the normal case), RCDATA (replaceable character -# data -- only char and entity references and end tags are special) -# and CDATA (character data -- only end tags are special). RCDATA is -# not supported at all. - -import _markupbase -import re - -__all__ = ["SGMLParser", "SGMLParseError"] - -# Regular expressions used for parsing - -interesting = re.compile('[&<]') -incomplete = re.compile('&([a-zA-Z][a-zA-Z0-9]*|#[0-9]*)?|' - '<([a-zA-Z][^<>]*|' - '/([a-zA-Z][^<>]*)?|' - '![^<>]*)?') - -entityref = re.compile('&([a-zA-Z][-.a-zA-Z0-9]*)[^a-zA-Z0-9]') -charref = re.compile('&#([0-9]+)[^0-9]') - -starttagopen = re.compile('<[>a-zA-Z]') -shorttagopen = re.compile('<[a-zA-Z][-.a-zA-Z0-9]*/') -shorttag = re.compile('<([a-zA-Z][-.a-zA-Z0-9]*)/([^/]*)/') -piclose = re.compile('>') -endbracket = re.compile('[<>]') -tagfind = re.compile('[a-zA-Z][-_.a-zA-Z0-9]*') -attrfind = re.compile( - r'\s*([a-zA-Z_][-:.a-zA-Z_0-9]*)(\s*=\s*' - r'(\'[^\']*\'|"[^"]*"|[][\-a-zA-Z0-9./,:;+*%?!&$\(\)_#=~\'"@]*))?') - - -class SGMLParseError(RuntimeError): - """Exception raised for all parse errors.""" - pass - - -# SGML parser base class -- find tags and call handler functions. -# Usage: p = SGMLParser(); p.feed(data); ...; p.close(). -# The dtd is defined by deriving a class which defines methods -# with special names to handle tags: start_foo and end_foo to handle -# and , respectively, or do_foo to handle by itself. -# (Tags are converted to lower case for this purpose.) The data -# between tags is passed to the parser by calling self.handle_data() -# with some data as argument (the data may be split up in arbitrary -# chunks). Entity references are passed by calling -# self.handle_entityref() with the entity reference as argument. - -class SGMLParser(_markupbase.ParserBase): - # Definition of entities -- derived classes may override - entity_or_charref = re.compile('&(?:' - '([a-zA-Z][-.a-zA-Z0-9]*)|#([0-9]+)' - ')(;?)') - - def __init__(self, verbose=0): - """Initialize and reset this instance.""" - self.verbose = verbose - self.reset() - - def reset(self): - """Reset this instance. Loses all unprocessed data.""" - self.__starttag_text = None - self.rawdata = '' - self.stack = [] - self.lasttag = '???' - self.nomoretags = 0 - self.literal = 0 - _markupbase.ParserBase.reset(self) - - def setnomoretags(self): - """Enter literal mode (CDATA) till EOF. - - Intended for derived classes only. - """ - self.nomoretags = self.literal = 1 - - def setliteral(self, *args): - """Enter literal mode (CDATA). - - Intended for derived classes only. - """ - self.literal = 1 - - def feed(self, data): - """Feed some data to the parser. - - Call this as often as you want, with as little or as much text - as you want (may include '\n'). (This just saves the text, - all the processing is done by goahead().) - """ - - self.rawdata = self.rawdata + data - self.goahead(0) - - def close(self): - """Handle the remaining data.""" - self.goahead(1) - - def error(self, message): - raise SGMLParseError(message) - - # Internal -- handle data as far as reasonable. May leave state - # and data to be processed by a subsequent call. If 'end' is - # true, force handling all data as if followed by EOF marker. - def goahead(self, end): - rawdata = self.rawdata - i = 0 - n = len(rawdata) - while i < n: - if self.nomoretags: - self.handle_data(rawdata[i:n]) - i = n - break - match = interesting.search(rawdata, i) - if match: j = match.start() - else: j = n - if i < j: - self.handle_data(rawdata[i:j]) - i = j - if i == n: break - if rawdata[i] == '<': - if starttagopen.match(rawdata, i): - if self.literal: - self.handle_data(rawdata[i]) - i = i+1 - continue - k = self.parse_starttag(i) - if k < 0: break - i = k - continue - if rawdata.startswith(" (i + 1): - self.handle_data("<") - i = i+1 - else: - # incomplete - break - continue - if rawdata.startswith("