SickGear/lib/feedparser/parsers/json.py

135 lines
4.6 KiB
Python

# The JSON feed parser
# Copyright 2017 Beat Bolli
# 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.
import json
from ..datetimes import _parse_date
from ..sanitizer import sanitize_html
from ..util import FeedParserDict
class JSONParser:
VERSIONS = {
"https://jsonfeed.org/version/1": "json1",
"https://jsonfeed.org/version/1.1": "json11",
}
FEED_FIELDS = (
("title", "title"),
("icon", "image"),
("home_page_url", "link"),
("description", "description"),
)
ITEM_FIELDS = (
("title", "title"),
("id", "guid"),
("url", "link"),
("summary", "summary"),
("external_url", "source"),
)
def __init__(self, baseuri=None, baselang=None, encoding=None):
self.baseuri = baseuri or ""
self.lang = baselang or None
self.encoding = encoding or "utf-8" # character encoding
self.version = None
self.feeddata = FeedParserDict()
self.namespacesInUse = []
self.entries = []
def feed(self, file):
data = json.load(file)
v = data.get("version", "")
try:
self.version = self.VERSIONS[v]
except KeyError:
raise ValueError("Unrecognized JSONFeed version '%s'" % v)
for src, dst in self.FEED_FIELDS:
if src in data:
self.feeddata[dst] = data[src]
if "author" in data:
self.parse_author(data["author"], self.feeddata)
# TODO: hubs; expired has no RSS equivalent
self.entries = [self.parse_entry(e) for e in data["items"]]
def parse_entry(self, e):
entry = FeedParserDict()
for src, dst in self.ITEM_FIELDS:
if src in e:
entry[dst] = e[src]
if "content_text" in e:
entry["content"] = c = FeedParserDict()
c["value"] = e["content_text"]
c["type"] = "text"
elif "content_html" in e:
entry["content"] = c = FeedParserDict()
c["value"] = sanitize_html(
e["content_html"], self.encoding, "application/json"
)
c["type"] = "html"
if "date_published" in e:
entry["published"] = e["date_published"]
entry["published_parsed"] = _parse_date(e["date_published"])
if "date_updated" in e:
entry["updated"] = e["date_modified"]
entry["updated_parsed"] = _parse_date(e["date_modified"])
if "tags" in e:
entry["category"] = e["tags"]
if "author" in e:
self.parse_author(e["author"], entry)
if "attachments" in e:
entry["enclosures"] = [self.parse_attachment(a) for a in e["attachments"]]
return entry
@staticmethod
def parse_author(parent, dest):
dest["author_detail"] = detail = FeedParserDict()
if "name" in parent:
dest["author"] = detail["name"] = parent["name"]
if "url" in parent:
if parent["url"].startswith("mailto:"):
detail["email"] = parent["url"][7:]
else:
detail["href"] = parent["url"]
@staticmethod
def parse_attachment(attachment):
enc = FeedParserDict()
enc["href"] = attachment["url"]
enc["type"] = attachment["mime_type"]
if "size_in_bytes" in attachment:
enc["length"] = attachment["size_in_bytes"]
return enc