SickGear/lib/html5lib/serializer/htmlserializer.py
echel0n 0d9fbc1ad7 Welcome to our SickBeard-TVRage Edition ...
This version of SickBeard uses both TVDB and TVRage to search and gather it's series data from allowing you to now have access to and download shows that you couldn't before because of being locked into only what TheTVDB had to offer.

Also this edition is based off the code we used in our XEM editon so it does come with scene numbering support as well as all the other features our XEM edition has to offer.

Please before using this with your existing database (sickbeard.db) please make a backup copy of it and delete any other database files such as cache.db and failed.db if present, we HIGHLY recommend starting out with no database files at all to make this a fresh start but the choice is at your own risk!

Enjoy!
2014-03-09 22:39:12 -07:00

312 lines
12 KiB
Python

try:
frozenset
except NameError:
# Import from the sets module for python 2.3
from sets import ImmutableSet as frozenset
import gettext
_ = gettext.gettext
from html5lib.constants import voidElements, booleanAttributes, spaceCharacters
from html5lib.constants import rcdataElements, entities, xmlEntities
from html5lib import utils
from xml.sax.saxutils import escape
spaceCharacters = u"".join(spaceCharacters)
try:
from codecs import register_error, xmlcharrefreplace_errors
except ImportError:
unicode_encode_errors = "strict"
else:
unicode_encode_errors = "htmlentityreplace"
from html5lib.constants import entities
encode_entity_map = {}
is_ucs4 = len(u"\U0010FFFF") == 1
for k, v in entities.items():
#skip multi-character entities
if ((is_ucs4 and len(v) > 1) or
(not is_ucs4 and len(v) > 2)):
continue
if v != "&":
if len(v) == 2:
v = utils.surrogatePairToCodepoint(v)
else:
try:
v = ord(v)
except:
print v
raise
if not v in encode_entity_map or k.islower():
# prefer < over < and similarly for &, >, etc.
encode_entity_map[v] = k
def htmlentityreplace_errors(exc):
if isinstance(exc, (UnicodeEncodeError, UnicodeTranslateError)):
res = []
codepoints = []
skip = False
for i, c in enumerate(exc.object[exc.start:exc.end]):
if skip:
skip = False
continue
index = i + exc.start
if utils.isSurrogatePair(exc.object[index:min([exc.end, index+2])]):
codepoint = utils.surrogatePairToCodepoint(exc.object[index:index+2])
skip = True
else:
codepoint = ord(c)
codepoints.append(codepoint)
for cp in codepoints:
e = encode_entity_map.get(cp)
if e:
res.append("&")
res.append(e)
if not e.endswith(";"):
res.append(";")
else:
res.append("&#x%s;"%(hex(cp)[2:]))
return (u"".join(res), exc.end)
else:
return xmlcharrefreplace_errors(exc)
register_error(unicode_encode_errors, htmlentityreplace_errors)
del register_error
class HTMLSerializer(object):
# attribute quoting options
quote_attr_values = False
quote_char = u'"'
use_best_quote_char = True
# tag syntax options
omit_optional_tags = True
minimize_boolean_attributes = True
use_trailing_solidus = False
space_before_trailing_solidus = True
# escaping options
escape_lt_in_attrs = False
escape_rcdata = False
resolve_entities = True
# miscellaneous options
inject_meta_charset = True
strip_whitespace = False
sanitize = False
options = ("quote_attr_values", "quote_char", "use_best_quote_char",
"minimize_boolean_attributes", "use_trailing_solidus",
"space_before_trailing_solidus", "omit_optional_tags",
"strip_whitespace", "inject_meta_charset", "escape_lt_in_attrs",
"escape_rcdata", "resolve_entities", "sanitize")
def __init__(self, **kwargs):
"""Initialize HTMLSerializer.
Keyword options (default given first unless specified) include:
inject_meta_charset=True|False
Whether it insert a meta element to define the character set of the
document.
quote_attr_values=True|False
Whether to quote attribute values that don't require quoting
per HTML5 parsing rules.
quote_char=u'"'|u"'"
Use given quote character for attribute quoting. Default is to
use double quote unless attribute value contains a double quote,
in which case single quotes are used instead.
escape_lt_in_attrs=False|True
Whether to escape < in attribute values.
escape_rcdata=False|True
Whether to escape characters that need to be escaped within normal
elements within rcdata elements such as style.
resolve_entities=True|False
Whether to resolve named character entities that appear in the
source tree. The XML predefined entities &lt; &gt; &amp; &quot; &apos;
are unaffected by this setting.
strip_whitespace=False|True
Whether to remove semantically meaningless whitespace. (This
compresses all whitespace to a single space except within pre.)
minimize_boolean_attributes=True|False
Shortens boolean attributes to give just the attribute value,
for example <input disabled="disabled"> becomes <input disabled>.
use_trailing_solidus=False|True
Includes a close-tag slash at the end of the start tag of void
elements (empty elements whose end tag is forbidden). E.g. <hr/>.
space_before_trailing_solidus=True|False
Places a space immediately before the closing slash in a tag
using a trailing solidus. E.g. <hr />. Requires use_trailing_solidus.
sanitize=False|True
Strip all unsafe or unknown constructs from output.
See `html5lib user documentation`_
omit_optional_tags=True|False
Omit start/end tags that are optional.
.. _html5lib user documentation: http://code.google.com/p/html5lib/wiki/UserDocumentation
"""
if kwargs.has_key('quote_char'):
self.use_best_quote_char = False
for attr in self.options:
setattr(self, attr, kwargs.get(attr, getattr(self, attr)))
self.errors = []
self.strict = False
def encode(self, string):
assert(isinstance(string, unicode))
if self.encoding:
return string.encode(self.encoding, unicode_encode_errors)
else:
return string
def encodeStrict(self, string):
assert(isinstance(string, unicode))
if self.encoding:
return string.encode(self.encoding, "strict")
else:
return string
def serialize(self, treewalker, encoding=None):
self.encoding = encoding
in_cdata = False
self.errors = []
if encoding and self.inject_meta_charset:
from html5lib.filters.inject_meta_charset import Filter
treewalker = Filter(treewalker, encoding)
# XXX: WhitespaceFilter should be used before OptionalTagFilter
# for maximum efficiently of this latter filter
if self.strip_whitespace:
from html5lib.filters.whitespace import Filter
treewalker = Filter(treewalker)
if self.sanitize:
from html5lib.filters.sanitizer import Filter
treewalker = Filter(treewalker)
if self.omit_optional_tags:
from html5lib.filters.optionaltags import Filter
treewalker = Filter(treewalker)
for token in treewalker:
type = token["type"]
if type == "Doctype":
doctype = u"<!DOCTYPE %s" % token["name"]
if token["publicId"]:
doctype += u' PUBLIC "%s"' % token["publicId"]
elif token["systemId"]:
doctype += u" SYSTEM"
if token["systemId"]:
if token["systemId"].find(u'"') >= 0:
if token["systemId"].find(u"'") >= 0:
self.serializeError(_("System identifer contains both single and double quote characters"))
quote_char = u"'"
else:
quote_char = u'"'
doctype += u" %s%s%s" % (quote_char, token["systemId"], quote_char)
doctype += u">"
yield self.encodeStrict(doctype)
elif type in ("Characters", "SpaceCharacters"):
if type == "SpaceCharacters" or in_cdata:
if in_cdata and token["data"].find("</") >= 0:
self.serializeError(_("Unexpected </ in CDATA"))
yield self.encode(token["data"])
else:
yield self.encode(escape(token["data"]))
elif type in ("StartTag", "EmptyTag"):
name = token["name"]
yield self.encodeStrict(u"<%s" % name)
if name in rcdataElements and not self.escape_rcdata:
in_cdata = True
elif in_cdata:
self.serializeError(_("Unexpected child element of a CDATA element"))
attributes = []
for (attr_namespace,attr_name),attr_value in sorted(token["data"].items()):
#TODO: Add namespace support here
k = attr_name
v = attr_value
yield self.encodeStrict(u' ')
yield self.encodeStrict(k)
if not self.minimize_boolean_attributes or \
(k not in booleanAttributes.get(name, tuple()) \
and k not in booleanAttributes.get("", tuple())):
yield self.encodeStrict(u"=")
if self.quote_attr_values or not v:
quote_attr = True
else:
quote_attr = reduce(lambda x,y: x or (y in v),
spaceCharacters + u">\"'=", False)
v = v.replace(u"&", u"&amp;")
if self.escape_lt_in_attrs: v = v.replace(u"<", u"&lt;")
if quote_attr:
quote_char = self.quote_char
if self.use_best_quote_char:
if u"'" in v and u'"' not in v:
quote_char = u'"'
elif u'"' in v and u"'" not in v:
quote_char = u"'"
if quote_char == u"'":
v = v.replace(u"'", u"&#39;")
else:
v = v.replace(u'"', u"&quot;")
yield self.encodeStrict(quote_char)
yield self.encode(v)
yield self.encodeStrict(quote_char)
else:
yield self.encode(v)
if name in voidElements and self.use_trailing_solidus:
if self.space_before_trailing_solidus:
yield self.encodeStrict(u" /")
else:
yield self.encodeStrict(u"/")
yield self.encode(u">")
elif type == "EndTag":
name = token["name"]
if name in rcdataElements:
in_cdata = False
elif in_cdata:
self.serializeError(_("Unexpected child element of a CDATA element"))
yield self.encodeStrict(u"</%s>" % name)
elif type == "Comment":
data = token["data"]
if data.find("--") >= 0:
self.serializeError(_("Comment contains --"))
yield self.encodeStrict(u"<!--%s-->" % token["data"])
elif type == "Entity":
name = token["name"]
key = name + ";"
if not key in entities:
self.serializeError(_("Entity %s not recognized" % name))
if self.resolve_entities and key not in xmlEntities:
data = entities[key]
else:
data = u"&%s;" % name
yield self.encodeStrict(data)
else:
self.serializeError(token["data"])
def render(self, treewalker, encoding=None):
if encoding:
return "".join(list(self.serialize(treewalker, encoding)))
else:
return u"".join(list(self.serialize(treewalker)))
def serializeError(self, data="XXX ERROR MESSAGE NEEDED"):
# XXX The idea is to make data mandatory.
self.errors.append(data)
if self.strict:
raise SerializeError
def SerializeError(Exception):
"""Error in serialized tree"""
pass