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Vendorizing new feedparser.

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Samuel Clay 2020-07-01 18:38:37 -04:00
parent 6f14455115
commit 1351aee6a8
45 changed files with 6047 additions and 4026 deletions
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7
UPGRADING.md
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@ -30,3 +30,10 @@ pip install -r requirements.txt
## Django 2.0 (python 3)
mkvirutalenv -p python3 newsblur3
mongo:
db.notifications.dropIndex('user_id_1_feed_id_1')
db.notification_tokens.dropIndex('user_id_1')
db.email_unsubscribes.dropIndex('user_id_1_email_type_1')
db.stories.dropIndex('story_hash_1')
db.saved_searches.dropIndex('user_id_1_feed_id_1_query_1')

12
apps/profile/middleware.py
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@ -12,7 +12,7 @@ from apps.statistics.rstats import round_time
from utils import json_functions as json
class LastSeenMiddleware(object):
def __init__(self, get_response):
def __init__(self, get_response=None):
self.get_response = get_response
def process_response(self, request, response):
@ -123,7 +123,7 @@ class DBProfilerMiddleware:
return response
class SQLLogToConsoleMiddleware:
def __init__(self, get_response):
def __init__(self, get_response=None):
self.get_response = get_response
def activated(self, request):
@ -285,7 +285,7 @@ SIMPSONS_QUOTES = [
]
class SimpsonsMiddleware:
def __init__(self, get_response):
def __init__(self, get_response=None):
self.get_response = get_response
def process_response(self, request, response):
@ -308,7 +308,7 @@ class SimpsonsMiddleware:
class ServerHostnameMiddleware:
def __init__(self, get_response):
def __init__(self, get_response=None):
self.get_response = get_response
def process_response(self, request, response):
@ -329,7 +329,7 @@ class ServerHostnameMiddleware:
class TimingMiddleware:
def __init__(self, get_response):
def __init__(self, get_response=None):
self.get_response = get_response
def process_request(self, request):
@ -350,7 +350,7 @@ BANNED_USERNAMES = (
)
class UserAgentBanMiddleware:
def __init__(self, get_response):
def __init__(self, get_response=None):
self.get_response = get_response
def process_request(self, request):

2
apps/push/models.py
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@ -1,7 +1,7 @@
# Adapted from djpubsubhubbub. See License: http://git.participatoryculture.org/djpubsubhubbub/tree/LICENSE
from datetime import datetime, timedelta
import feedparser
from vendor import feedparser
import requests
import re

2
apps/push/views.py
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@ -1,6 +1,6 @@
# Adapted from djpubsubhubbub. See License: http://git.participatoryculture.org/djpubsubhubbub/tree/LICENSE
import feedparser
from vendor import feedparser
import random
import datetime

4
apps/rss_feeds/icon_importer.py
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@ -383,9 +383,7 @@ class IconImporter(object):
# Find the most frequent color, based on the counts.
index_max = scipy.argmax(counts)
peak = codes.astype(int)[index_max]
print(f" ---> Color: {peak}")
color = "{:02x}{:02x}{:02x}".format(peak[0], peak[1], peak[2])
print(f" ---> Color: {color} {peak}")
return color[:6]
@ -394,4 +392,4 @@ class IconImporter(object):
image.save(output, 'png', quality=95)
contents = output.getvalue()
output.close()
return base64.b64encode(contents)
return base64.b64encode(contents).decode()

2
apps/rss_feeds/page_importer.py
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@ -2,7 +2,7 @@ import requests
import re
import urllib.parse
import traceback
import feedparser
from vendor import feedparser
import time
import urllib.request, urllib.error, urllib.parse
import http.client

2
utils/exception_middleware.py
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@ -15,7 +15,7 @@ class ConsoleExceptionMiddleware:
#pprint(request)
#print "################################################################"
def __init__(self, get_response):
def __init__(self, get_response=None):
self.get_response = get_response
def __call__(self, request):

2
utils/feed_fetcher.py
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@ -22,7 +22,7 @@ from apps.rss_feeds.icon_importer import IconImporter
from apps.notifications.tasks import QueueNotifications, MUserFeedNotification
from apps.push.models import PushSubscription
from apps.statistics.models import MAnalyticsFetcher, MStatistics
from utils import feedparser
from vendor import feedparser
from utils.story_functions import pre_process_story, strip_tags, linkify
from utils import log as logging
from utils.feed_functions import timelimit, TimeoutError

4008
utils/feedparser.py
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File diff suppressed because it is too large Load diff

2
utils/mongo_raw_log_middleware.py
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@ -11,7 +11,7 @@ from bson.errors import InvalidBSON
class MongoDumpMiddleware(object):
def __init__(self, get_response):
def __init__(self, get_response=None):
self.get_response = get_response
def activated(self, request):

2
utils/redis_raw_log_middleware.py
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@ -6,7 +6,7 @@ from time import time
class RedisDumpMiddleware(object):
def __init__(self, get_response):
def __init__(self, get_response=None):
self.get_response = get_response
def activated(self, request):

2
utils/request_introspection_middleware.py
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@ -9,7 +9,7 @@ class DumpRequestMiddleware:
if request_items:
logging.debug(" ---> ~FC%s ~SN~FC%s ~SN~BC~FK%s~BK~FC" % (request.method, request.path, dict(request_items)))
def __init__(self, get_response):
def __init__(self, get_response=None):
self.get_response = get_response
def __call__(self, request):

2
utils/story_functions.py
View file

@ -16,7 +16,7 @@ from django.utils.html import strip_tags as strip_tags_django
from utils.tornado_escape import linkify as linkify_tornado
from utils.tornado_escape import xhtml_unescape as xhtml_unescape_tornado
from vendor import reseekfile
from utils import feedparser
from vendor import feedparser
import hmac
from binascii import hexlify

51
vendor/feedparser/__init__.py vendored Normal file
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@ -0,0 +1,51 @@
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ import unicode_literals
from .api import parse
from .datetimes import registerDateHandler
from .exceptions import *
from .util import FeedParserDict
__author__ = 'Kurt McKee <contactme@kurtmckee.org>'
__license__ = 'BSD 2-clause'
__version__ = '6.0.0b3'
# 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__
# 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

296
vendor/feedparser/api.py vendored Normal file
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@ -0,0 +1,296 @@
# The public API for feedparser
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ import unicode_literals
import xml.sax
try:
from io import BytesIO as _StringIO
except ImportError:
# Python 2.7
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, make_safe_absolute_uri
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"]
_XML_AVAILABLE = True
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'), # `str()` call required for Python 2.7
(_LooseFeedParser, _FeedParserMixin, _BaseHTMLProcessor, object),
{},
)
StrictFeedParser = type(
str('StrictFeedParser'), # `str()` call required for Python 2.7
(_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, resolve_relative_uris=None, sanitize_html=None):
"""Parse a feed from a URL, file, stream, or string.
:param url_file_stream_or_string:
File-like object, URL, file path, or string. Both byte and text strings
are accepted. If necessary, encoding will be derived from the response
headers or automatically detected.
Note that strings may trigger network I/O or filesystem access
depending on the value. Wrap an untrusted string in
a :class:`io.StringIO` or :class:`io.BytesIO` to avoid this. Do not
pass untrusted strings to this function.
When a URL is not passed the feed location to use in relative URL
resolution should be passed in the ``Content-Location`` response header
(see ``response_headers`` below).
:param str etag: HTTP ``ETag`` request header.
:param modified: HTTP ``Last-Modified`` request header.
:type modified: :class:`str`, :class:`time.struct_time` 9-tuple, or
:class:`datetime.datetime`
:param str agent: HTTP ``User-Agent`` request header, which defaults to
the value of :data:`feedparser.USER_AGENT`.
:param referrer: HTTP ``Referer`` [sic] request header.
:param request_headers:
A mapping of HTTP header name to HTTP header value to add to the
request, overriding internally generated values.
:type request_headers: :class:`dict` mapping :class:`str` to :class:`str`
:param response_headers:
A mapping of HTTP header name to HTTP header value. Multiple values may
be joined with a comma. If a HTTP request was made, these headers
override any matching headers in the response. Otherwise this specifies
the entirety of the response headers.
:type response_headers: :class:`dict` mapping :class:`str` to :class:`str`
:param bool resolve_relative_uris:
Should feedparser attempt to resolve relative URIs absolute ones within
HTML content? Defaults to the value of
:data:`feedparser.RESOLVE_RELATIVE_URIS`, which is ``True``.
:param bool sanitize_html:
Should feedparser skip HTML sanitization? Only disable this if you know
what you are doing! Defaults to the value of
:data:`feedparser.SANITIZE_HTML`, which is ``True``.
:return: A :class:`FeedParserDict`.
"""
if not agent or sanitize_html is None or resolve_relative_uris is None:
import feedparser
if not agent:
agent = feedparser.USER_AGENT
if sanitize_html is None:
sanitize_html = feedparser.SANITIZE_HTML
if resolve_relative_uris is None:
resolve_relative_uris = feedparser.RESOLVE_RELATIVE_URIS
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 = make_safe_absolute_uri(href, contentloc) or make_safe_absolute_uri(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')
feedparser.resolve_relative_uris = resolve_relative_uris
feedparser.sanitize_html = sanitize_html
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.resolve_relative_uris = resolve_relative_uris
feedparser.sanitize_html = sanitize_html
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.namespaces_in_use
return result

72
vendor/feedparser/datetimes/__init__.py vendored Normal file
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@ -0,0 +1,72 @@
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
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(date_string):
"""Parses a variety of date formats into a 9-tuple in GMT"""
if not date_string:
return None
for handler in _date_handlers:
try:
date9tuple = handler(date_string)
except (KeyError, OverflowError, ValueError, AttributeError):
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)

74
vendor/feedparser/datetimes/asctime.py vendored Normal file
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@ -0,0 +1,74 @@
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ 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],
]))

89
vendor/feedparser/datetimes/greek.py vendored Normal file
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@ -0,0 +1,89 @@
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ 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(r'([^,]+),\s+(\d{2})\s+([^\s]+)\s+(\d{4})\s+(\d{2}):(\d{2}):(\d{2})\s+([^\s]+)')
def _parse_date_greek(date_string):
"""Parse a string according to a Greek 8-bit date format."""
m = _greek_date_format_re.match(date_string)
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)

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# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ 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(r'(\d{4})-([^-]+)-(\d{,2})T(\d{,2}):(\d{2})((\+|-)(\d{,2}:\d{2}))')
def _parse_date_hungarian(date_string):
"""Parse a string according to a Hungarian 8-bit date format."""
m = _hungarian_date_format_re.match(date_string)
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)

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# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ 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<year>\d{4})').replace(
'YY', r'(?P<year>\d\d)').replace(
'MM', r'(?P<month>[01]\d)').replace(
'DD', r'(?P<day>[0123]\d)').replace(
'OOO', r'(?P<ordinal>[0123]\d\d)').replace(
'CC', r'(?P<century>\d\d$)')
+ r'(T?(?P<hour>\d{2}):(?P<minute>\d{2})'
+ r'(:(?P<second>\d{2}))?'
+ r'(\.(?P<fracsecond>\d+))?'
+ r'(?P<tz>[+-](?P<tzhour>\d{2})(:(?P<tzmin>\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(date_string):
"""Parse a variety of ISO-8601-compatible formats like 20040105"""
m = None
for _iso8601_match in _iso8601_matches:
m = _iso8601_match(date_string)
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)))

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# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ 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(
r'(\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(
r'(\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)

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# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ import unicode_literals
try:
import rfc822
except ImportError:
from email import _parseaddr as rfc822
import re
import time
def _parse_date_perforce(date_string):
"""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(date_string)
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']
new_date_string = "%s, %s %s %s %s:%s:%s %s" % (dow, day, months[int(month) - 1], year, hour, minute, second, tz)
tm = rfc822.parsedate_tz(new_date_string)
if tm:
return time.gmtime(rfc822.mktime_tz(tm))

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# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ 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

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# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ 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)))
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)
tzmin = 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

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# Character encoding routines
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ import unicode_literals
import cgi
import codecs
import re
try:
try:
import cchardet as chardet
except ImportError:
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 ('<?xm') in the specified encoding.
EBCDIC_MARKER = b'\x4C\x6F\xA7\x94'
UTF16BE_MARKER = b'\x00\x3C\x00\x3F'
UTF16LE_MARKER = b'\x3C\x00\x3F\x00'
UTF32BE_MARKER = b'\x00\x00\x00\x3C'
UTF32LE_MARKER = b'\x3C\x00\x00\x00'
ZERO_BYTES = '\x00\x00'
# Match the opening XML declaration.
# Example: <?xml version="1.0" encoding="utf-8"?>
RE_XML_DECLARATION = re.compile(r'^<\?xml[^>]*?>')
# Capture the value of the XML processing instruction's encoding attribute.
# Example: <?xml version="1.0" encoding="utf-8"?>
RE_XML_PI_ENCODING = re.compile(br'^<\?.*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 = ''
# 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 '<?xm' in several encodings.
elif data[:4] == EBCDIC_MARKER:
bom_encoding = 'cp037'
elif data[:4] == UTF16BE_MARKER:
bom_encoding = 'utf-16be'
elif data[:4] == UTF16LE_MARKER:
bom_encoding = 'utf-16le'
elif data[:4] == UTF32BE_MARKER:
bom_encoding = 'utf-32be'
elif data[:4] == UTF32LE_MARKER:
bom_encoding = 'utf-32le'
tempdata = data
try:
if bom_encoding:
tempdata = data.decode(bom_encoding).encode('utf-8')
except (UnicodeDecodeError, LookupError):
# feedparser recognizes UTF-32 encodings that aren't
# available in Python 2.4 and 2.5, so it's possible to
# encounter a LookupError during decoding.
xml_encoding_match = None
else:
xml_encoding_match = RE_XML_PI_ENCODING.match(tempdata)
if xml_encoding_match:
xml_encoding = xml_encoding_match.groups()[0].decode('utf-8').lower()
# Normalize the xml_encoding if necessary.
if bom_encoding and (xml_encoding in (
'u16', 'utf-16', 'utf16', 'utf_16',
'u32', 'utf-32', 'utf32', 'utf_32',
'iso-10646-ucs-2', 'iso-10646-ucs-4',
'csucs4', 'csunicode', 'ucs-2', 'ucs-4'
)):
xml_encoding = bom_encoding
# Find the HTTP Content-Type and, hopefully, a character
# encoding provided by the server. The Content-Type is used
# to choose the "correct" encoding among the BOM encoding,
# XML declaration encoding, and HTTP encoding, following the
# heuristic defined in RFC 3023.
http_content_type = http_headers.get('content-type') or ''
http_content_type, params = cgi.parse_header(http_content_type)
http_encoding = params.get('charset', '').replace("'", "")
if isinstance(http_encoding, bytes_):
http_encoding = http_encoding.decode('utf-8', 'ignore')
acceptable_content_type = 0
application_content_types = ('application/xml', 'application/xml-dtd',
'application/xml-external-parsed-entity')
text_content_types = ('text/xml', 'text/xml-external-parsed-entity')
if (
http_content_type in application_content_types
or (
http_content_type.startswith('application/')
and http_content_type.endswith('+xml')
)
):
acceptable_content_type = 1
rfc3023_encoding = http_encoding or xml_encoding or 'utf-8'
elif (
http_content_type in text_content_types
or (
http_content_type.startswith('text/')
and http_content_type.endswith('+xml')
)
):
acceptable_content_type = 1
rfc3023_encoding = http_encoding or 'us-ascii'
elif http_content_type.startswith('text/'):
rfc3023_encoding = http_encoding or 'us-ascii'
elif http_headers and 'content-type' not in http_headers:
rfc3023_encoding = xml_encoding or 'iso-8859-1'
else:
rfc3023_encoding = xml_encoding or 'utf-8'
# gb18030 is a superset of gb2312, so always replace gb2312
# with gb18030 for greater compatibility.
if rfc3023_encoding.lower() == 'gb2312':
rfc3023_encoding = 'gb18030'
if xml_encoding.lower() == 'gb2312':
xml_encoding = 'gb18030'
# there are four encodings to keep track of:
# - http_encoding is the encoding declared in the Content-Type HTTP header
# - xml_encoding is the encoding declared in the <?xml declaration
# - bom_encoding is the encoding sniffed from the first 4 bytes of the XML data
# - rfc3023_encoding is the actual encoding, as per RFC 3023 and a variety of other conflicting specifications
error = None
if http_headers and (not acceptable_content_type):
if 'content-type' in http_headers:
msg = '%s is not an XML media type' % http_headers['content-type']
else:
msg = 'no Content-type specified'
error = NonXMLContentType(msg)
# determine character encoding
known_encoding = 0
tried_encodings = []
# try: HTTP encoding, declared XML encoding, encoding sniffed from BOM
for proposed_encoding in (rfc3023_encoding, xml_encoding, bom_encoding,
lazy_chardet_encoding, 'utf-8', 'windows-1252', 'iso-8859-2'):
if callable(proposed_encoding):
proposed_encoding = proposed_encoding(data)
if not proposed_encoding:
continue
if proposed_encoding in tried_encodings:
continue
tried_encodings.append(proposed_encoding)
try:
data = data.decode(proposed_encoding)
except (UnicodeDecodeError, LookupError):
pass
else:
known_encoding = 1
# Update the encoding in the opening XML processing instruction.
new_declaration = '''<?xml version='1.0' encoding='utf-8'?>'''
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

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# Exceptions used throughout feedparser
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ 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

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# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ import unicode_literals
import re
try:
from html.entities import name2codepoint
except ImportError:
# Python 2
# noinspection PyUnresolvedReferences
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(r"&(?!#\d+;|#x[0-9a-fA-F]+;|\w+;)")
elements_no_end_tag = {
'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
self.pieces = []
super(_BaseHTMLProcessor, self).__init__()
def reset(self):
self.pieces = []
super(_BaseHTMLProcessor, self).reset()
def _shorttag_replace(self, match):
"""
:type match: Match[str]
:rtype: str
"""
tag = match.group(1)
if tag in self.elements_no_end_tag:
return '<' + tag + ' />'
else:
return '<' + tag + '></' + 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):
raise NotImplementedError
# Replace goahead with SGMLParser's goahead() code object.
try:
goahead.__code__ = sgmllib.SGMLParser.goahead.__code__
except AttributeError:
# Python 2
# noinspection PyUnresolvedReferences
goahead.func_code = sgmllib.SGMLParser.goahead.func_code
def __parse_starttag(self, i):
raise NotImplementedError
# Replace __parse_starttag with SGMLParser's parse_starttag() code object.
try:
__parse_starttag.__code__ = sgmllib.SGMLParser.parse_starttag.__code__
except AttributeError:
# Python 2
# noinspection PyUnresolvedReferences
__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):
"""
:type data: str
:rtype: None
"""
data = re.sub(r'<!((?!DOCTYPE|--|\[))', r'&lt;!\1', data, re.IGNORECASE)
data = re.sub(r'<([^<>\s]+?)\s*/>', self._shorttag_replace, data)
data = data.replace('&#39;', "'")
data = data.replace('&#34;', '"')
super(_BaseHTMLProcessor, self).feed(data)
super(_BaseHTMLProcessor, self).close()
@staticmethod
def normalize_attrs(attrs):
"""
:type attrs: List[Tuple[str, str]]
:rtype: List[Tuple[str, str]]
"""
if not attrs:
return attrs
# utility method to be called by descendants
# Collapse any duplicate attribute names and values by converting
# *attrs* into a dictionary, then convert it back to a list.
attrs_d = {k.lower(): v for k, v in attrs}
attrs = [
(k, k in ('rel', 'type') and v.lower() or v)
for k, v in attrs_d.items()
]
attrs.sort()
return attrs
def unknown_starttag(self, tag, attrs):
"""
:type tag: str
:type attrs: List[Tuple[str, str]]
:rtype: None
"""
# Called for each start tag
# attrs is a list of (attr, value) tuples
# e.g. for <pre class='screen'>, tag='pre', attrs=[('class', 'screen')]
uattrs = []
strattrs = ''
if attrs:
for key, value in attrs:
value = value.replace('>', '&gt;')
value = value.replace('<', '&lt;')
value = value.replace('"', '&quot;')
value = self.bare_ampersand.sub("&amp;", 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):
"""
:type tag: str
:rtype: None
"""
# Called for each end tag, e.g. for </pre>, tag will be 'pre'
# Reconstruct the original end tag.
if tag not in self.elements_no_end_tag:
self.pieces.append("</%s>" % tag)
def handle_charref(self, ref):
"""
:type ref: str
:rtype: None
"""
# Called for each character reference, e.g. '&#160;' will extract '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):
"""
:type ref: str
:rtype: None
"""
# Called for each entity reference, e.g. '&copy;' will extract 'copy'
# Reconstruct the original entity reference.
if ref in name2codepoint or ref == 'apos':
self.pieces.append('&%s;' % ref)
else:
self.pieces.append('&amp;%s' % ref)
def handle_data(self, text):
"""
:type text: str
:rtype: None
"""
# 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):
"""
:type text: str
:rtype: None
"""
# Called for HTML comments, e.g. <!-- insert Javascript code here -->
# Reconstruct the original comment.
self.pieces.append('<!--%s-->' % text)
def handle_pi(self, text):
"""
:type text: str
:rtype: None
"""
# Called for each processing instruction, e.g. <?instruction>
# Reconstruct original processing instruction.
self.pieces.append('<?%s>' % text)
def handle_decl(self, text):
"""
:type text: str
:rtype: None
"""
# called for the DOCTYPE, if present, e.g.
# <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
# "http://www.w3.org/TR/html4/loose.dtd">
# Reconstruct original DOCTYPE
self.pieces.append('<!%s>' % text)
_new_declname_match = re.compile(r'[a-zA-Z][-_.a-zA-Z0-9:]*\s*').match
def _scan_name(self, i, declstartpos):
"""
:type i: int
:type declstartpos: int
:rtype: Tuple[Optional[str], int]
"""
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
@staticmethod
def convert_charref(name):
"""
:type name: str
:rtype: str
"""
return '&#%s;' % name
@staticmethod
def convert_entityref(name):
"""
:type name: str
:rtype: str
"""
return '&%s;' % name
def output(self):
"""Return processed HTML as a single string.
:rtype: str
"""
return ''.join(self.pieces)
def parse_declaration(self, i):
"""
:type i: int
:rtype: int
"""
try:
return sgmllib.SGMLParser.parse_declaration(self, i)
except sgmllib.SGMLParseError:
# Escape the doctype declaration and continue parsing.
self.handle_data('&lt;')
return i+1

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# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ import unicode_literals
import datetime
import gzip
import re
import struct
import zlib
try:
import urllib.parse
import urllib.request
except ImportError:
# Mock urllib sufficiently to work on Python 2.7
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:
# Python 2.7
try:
from cStringIO import StringIO as _StringIO
except ImportError:
from StringIO import StringIO as _StringIO
import base64
from .datetimes import _parse_date
from .urls import convert_to_idn
# Python 3.1 deprecated decodestring in favor of decodebytes.
# This can be removed after Python 2.7 support is dropped.
_base64decode = getattr(base64, 'decodebytes', base64.decodestring)
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 '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)
request.add_header('Accept-encoding', 'gzip, deflate')
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:
from . import USER_AGENT
agent = USER_AGENT
# Test for inline user:password credentials for HTTP basic auth
auth = None
if 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'] = {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:
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

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# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ import unicode_literals
import base64
import binascii
import copy
import re
from xml.sax.saxutils import escape as _xmlescape
try:
from html.entities import name2codepoint, entitydefs
except ImportError:
# Python 2
# noinspection PyUnresolvedReferences
from htmlentitydefs import name2codepoint, entitydefs
from .html import _cp1252
from .namespaces import _base, cc, dc, georss, itunes, mediarss, psc
from .sanitizer import _sanitize_html, _HTMLSanitizer
from .util import FeedParserDict
from .urls import _urljoin, make_safe_absolute_uri, resolve_relative_uris
# Python 2.7 only offers "decodestring()".
# This name substitution can be removed when Python 2.7 support is dropped.
_base64decode = getattr(base64, 'decodebytes', base64.decodestring)
bytes_ = type(b'')
try:
# Python 2
# noinspection PyUnresolvedReferences,PyShadowingBuiltins
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 = {
'comments',
'docs',
'href',
'icon',
'id',
'link',
'logo',
'url',
'wfw_comment',
'wfw_commentrss',
}
can_contain_relative_uris = {
'content',
'copyright',
'description',
'info',
'rights',
'subtitle',
'summary',
'tagline',
'title',
}
can_contain_dangerous_markup = {
'content',
'copyright',
'description',
'info',
'rights',
'subtitle',
'summary',
'tagline',
'title',
}
html_types = {
'application/xhtml+xml',
'text/html',
}
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.namespaces_in_use = {} # 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 _normalize_attributes(self, kv):
raise NotImplementedError
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
attrs_d = dict(attrs)
baseuri = attrs_d.get('xml:base', attrs_d.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 = make_safe_absolute_uri(self.baseuri, baseuri) or self.baseuri
else:
self.baseuri = _urljoin(self.baseuri, baseuri)
lang = attrs_d.get('xml:lang', attrs_d.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.track_namespace(prefix[6:], uri)
elif prefix == 'xmlns':
self.track_namespace(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.namespaces_in_use.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(attrs_d)
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(attrs_d) == 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._get_context()
context[unknown_tag] = attrs_d
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('</%s>' % 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 '&#160;', ref is '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 '&copy;', ref is '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. <!-- insert message here -->
pass
def handle_pi(self, text):
# Called for each processing instruction, e.g. <?instruction>
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] == '<![CDATA[':
k = self.rawdata.find(']]>', 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
@staticmethod
def map_content_type(content_type):
content_type = content_type.lower()
if content_type == 'text' or content_type == 'plain':
content_type = 'text/plain'
elif content_type == 'html':
content_type = 'text/html'
elif content_type == 'xhtml':
content_type = 'application/xhtml+xml'
return content_type
def track_namespace(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.namespaces_in_use[self._matchnamespaces[loweruri]] = uri
else:
self.namespaces_in_use[prefix or ''] = uri
def resolve_uri(self, uri):
return _urljoin(self.baseuri or '', uri)
@staticmethod
def decode_entities(element, data):
return data
@staticmethod
def strattrs(attrs):
return ''.join(
' %s="%s"' % (t[0], _xmlescape(t[1], {'"': '&quot;'}))
for t in attrs
)
def push(self, element, expecting_text):
self.elementstack.append([element, expecting_text, []])
def pop(self, element, strip_whitespace=1):
if not self.elementstack:
return
if self.elementstack[-1][0] != element:
return
element, expecting_text, pieces = self.elementstack.pop()
# 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')
if self.version == 'atom10' and self.contentparams.get('type', 'text') == 'application/xhtml+xml':
# remove enclosing child element, but only if it is a <div> and
# only if all the remaining content is nested underneath it.
# This means that the divs would be retained in the following:
# <div>foo</div><div>bar</div>
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] == '<div>' or pieces[0].startswith('<div ')) and pieces[-1] == '</div>':
depth = 0
for piece in pieces[:-1]:
if piece.startswith('</'):
depth -= 1
if depth == 0:
break
elif piece.startswith('<') and not piece.endswith('/>'):
depth += 1
else:
pieces = pieces[1:-1]
output = ''.join(pieces)
if strip_whitespace:
output = output.strip()
if not expecting_text:
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.resolve_uri(output)
# decode entities within embedded markup
if not self.contentparams.get('base64', 0):
output = self.decode_entities(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.looks_like_html(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.map_content_type(self.contentparams.get('type', 'text/html')) in self.html_types
# resolve relative URIs within embedded markup
if is_htmlish and self.resolve_relative_uris:
if element in self.can_contain_relative_uris:
output = resolve_relative_uris(output, self.baseuri, self.encoding, self.contentparams.get('type', 'text/html'))
# sanitize embedded markup
if is_htmlish and self.sanitize_html:
if element in self.can_contain_dangerous_markup:
output = _sanitize_html(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('&amp;', '&')
output = re.sub("&([A-Za-z0-9_]+);", r"&\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._get_context()
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_]+);", r"&\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 push_content(self, tag, attrs_d, default_content_type, expecting_text):
self.incontent += 1
if self.lang:
self.lang = self.lang.replace('_', '-')
self.contentparams = FeedParserDict({
'type': self.map_content_type(attrs_d.get('type', default_content_type)),
'language': self.lang,
'base': self.baseuri})
self.contentparams['base64'] = self._is_base64(attrs_d, self.contentparams)
self.push(tag, expecting_text)
def pop_content(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 looks_like_html(s):
"""
:type s: str
:rtype: bool
"""
# must have a close tag or an entity reference to qualify
if not (re.search(r'</(\w+)>', s) or re.search(r'&#?\w+;', s)):
return False
# all tags must be in a restricted subset of valid HTML tags
if any((t for t in re.findall(r'</?(\w+)', s) if t.lower() not in _HTMLSanitizer.acceptable_elements)):
return False
# all entities must have been defined as valid HTML entities
if any((e for e in re.findall(r'&(\w+);', s) if e not in entitydefs)):
return False
return True
def _map_to_standard_prefix(self, name):
colonpos = name.find(':')
if colonpos != -1:
prefix = name[:colonpos]
suffix = name[colonpos+1:]
prefix = self.namespacemap.get(prefix, prefix)
name = prefix + ':' + suffix
return name
def _get_attribute(self, attrs_d, name):
return attrs_d.get(self._map_to_standard_prefix(name))
def _is_base64(self, attrs_d, contentparams):
if attrs_d.get('mode', '') == 'base64':
return 1
if self.contentparams['type'].startswith('text/'):
return 0
if self.contentparams['type'].endswith('+xml'):
return 0
if self.contentparams['type'].endswith('/xml'):
return 0
return 1
@staticmethod
def _enforce_href(attrs_d):
href = attrs_d.get('url', attrs_d.get('uri', attrs_d.get('href', None)))
if href:
try:
del attrs_d['url']
except KeyError:
pass
try:
del attrs_d['uri']
except KeyError:
pass
attrs_d['href'] = href
return attrs_d
def _save(self, key, value, overwrite=False):
context = self._get_context()
if overwrite:
context[key] = value
else:
context.setdefault(key, value)
def _get_context(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._get_context()
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._get_context()
context.setdefault('contributors', [FeedParserDict()])
context['contributors'][-1][key] = value
def _sync_author_detail(self, key='author'):
context = self._get_context()
detail = context.get('%ss' % key, [FeedParserDict()])[-1]
if detail:
name = detail.get('name')
email = detail.get('email')
if name and email:
context[key] = '%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(r'''(([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, '')
author = author.replace('()', '')
author = author.replace('<>', '')
author = author.replace('&lt;&gt;', '')
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 _add_tag(self, term, scheme, label):
context = self._get_context()
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, attrs_d):
# 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._add_tag(term.strip(), None, None)

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vendor/feedparser/namespaces/__init__.py vendored Normal file
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@ -0,0 +1,506 @@
# Support for the Atom, RSS, RDF, and CDF feed formats
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ import unicode_literals
import copy
from ..datetimes import _parse_date
from ..urls import make_safe_absolute_uri
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, attrs_d):
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 = attrs_d.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, attrs_d):
self.infeed = 1
self._cdf_common(attrs_d)
def _cdf_common(self, attrs_d):
if 'lastmod' in attrs_d:
self._start_modified({})
self.elementstack[-1][-1] = attrs_d['lastmod']
self._end_modified()
if 'href' in attrs_d:
self._start_link({})
self.elementstack[-1][-1] = attrs_d['href']
self._end_link()
def _start_feed(self, attrs_d):
self.infeed = 1
versionmap = {'0.1': 'atom01',
'0.2': 'atom02',
'0.3': 'atom03'}
if not self.version:
attr_version = attrs_d.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, attrs_d):
context = self._get_context()
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, attrs_d):
context = self._get_context()
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, attrs_d):
self.inauthor = 1
self.push('author', 1)
# Append a new FeedParserDict when expecting an author
context = self._get_context()
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, attrs_d):
self.incontributor = 1
context = self._get_context()
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, attrs_d):
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._get_context()
context['name'] = value
def _start_width(self, attrs_d):
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._get_context()
context['width'] = value
def _start_height(self, attrs_d):
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._get_context()
context['height'] = value
def _start_url(self, attrs_d):
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, attrs_d):
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, attrs_d):
self.push_content('subtitle', attrs_d, 'text/plain', 1)
_start_tagline = _start_subtitle
def _end_subtitle(self):
self.pop_content('subtitle')
_end_tagline = _end_subtitle
def _start_rights(self, attrs_d):
self.push_content('rights', attrs_d, 'text/plain', 1)
_start_copyright = _start_rights
def _end_rights(self):
self.pop_content('rights')
_end_copyright = _end_rights
def _start_item(self, attrs_d):
self.entries.append(FeedParserDict())
self.push('item', 0)
self.inentry = 1
self.guidislink = 0
self.title_depth = -1
id = self._get_attribute(attrs_d, 'rdf:about')
if id:
context = self._get_context()
context['id'] = id
self._cdf_common(attrs_d)
_start_entry = _start_item
def _end_item(self):
self.pop('item')
self.inentry = 0
_end_entry = _end_item
def _start_language(self, attrs_d):
self.push('language', 1)
def _end_language(self):
self.lang = self.pop('language')
def _start_webmaster(self, attrs_d):
self.push('publisher', 1)
def _end_webmaster(self):
self.pop('publisher')
self._sync_author_detail('publisher')
def _start_published(self, attrs_d):
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, attrs_d):
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, attrs_d):
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, attrs_d):
self.push('expired', 1)
def _end_expirationdate(self):
self._save('expired_parsed', _parse_date(self.pop('expired')), overwrite=True)
def _start_category(self, attrs_d):
term = attrs_d.get('term')
scheme = attrs_d.get('scheme', attrs_d.get('domain'))
label = attrs_d.get('label')
self._add_tag(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._get_context()
tags = context['tags']
if value and len(tags) and not tags[-1]['term']:
tags[-1]['term'] = value
else:
self._add_tag(value, None, None)
_end_keywords = _end_category
def _start_cloud(self, attrs_d):
self._get_context()['cloud'] = FeedParserDict(attrs_d)
def _start_link(self, attrs_d):
attrs_d.setdefault('rel', 'alternate')
if attrs_d['rel'] == 'self':
attrs_d.setdefault('type', 'application/atom+xml')
else:
attrs_d.setdefault('type', 'text/html')
context = self._get_context()
attrs_d = self._enforce_href(attrs_d)
if 'href' in attrs_d:
attrs_d['href'] = self.resolve_uri(attrs_d['href'])
expecting_text = self.infeed or self.inentry or self.insource
context.setdefault('links', [])
if not (self.inentry and self.inimage):
context['links'].append(FeedParserDict(attrs_d))
if 'href' in attrs_d:
if (
attrs_d.get('rel') == 'alternate'
and self.map_content_type(attrs_d.get('type')) in self.html_types
):
context['link'] = attrs_d['href']
else:
self.push('link', expecting_text)
def _end_link(self):
self.pop('link')
def _start_guid(self, attrs_d):
self.guidislink = (attrs_d.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._get_context())
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, attrs_d):
if self.svgOK:
return self.unknown_starttag('title', list(attrs_d.items()))
self.push_content('title', attrs_d, 'text/plain', self.infeed or self.inentry or self.insource)
def _end_title(self):
if self.svgOK:
return
value = self.pop_content('title')
if not value:
return
self.title_depth = self.depth
def _start_description(self, attrs_d):
context = self._get_context()
if 'summary' in context:
self._summaryKey = 'content'
self._start_content(attrs_d)
else:
self.push_content('description', attrs_d, 'text/html', self.infeed or self.inentry or self.insource)
def _start_abstract(self, attrs_d):
self.push_content('description', attrs_d, 'text/plain', self.infeed or self.inentry or self.insource)
def _end_description(self):
if self._summaryKey == 'content':
self._end_content()
else:
self.pop_content('description')
self._summaryKey = None
_end_abstract = _end_description
def _start_info(self, attrs_d):
self.push_content('info', attrs_d, 'text/plain', 1)
_start_feedburner_browserfriendly = _start_info
def _end_info(self):
self.pop_content('info')
_end_feedburner_browserfriendly = _end_info
def _start_generator(self, attrs_d):
if attrs_d:
attrs_d = self._enforce_href(attrs_d)
if 'href' in attrs_d:
attrs_d['href'] = self.resolve_uri(attrs_d['href'])
self._get_context()['generator_detail'] = FeedParserDict(attrs_d)
self.push('generator', 1)
def _end_generator(self):
value = self.pop('generator')
context = self._get_context()
if 'generator_detail' in context:
context['generator_detail']['name'] = value
def _start_summary(self, attrs_d):
context = self._get_context()
if 'summary' in context:
self._summaryKey = 'content'
self._start_content(attrs_d)
else:
self._summaryKey = 'summary'
self.push_content(self._summaryKey, attrs_d, 'text/plain', 1)
def _end_summary(self):
if self._summaryKey == 'content':
self._end_content()
else:
self.pop_content(self._summaryKey or 'summary')
self._summaryKey = None
def _start_enclosure(self, attrs_d):
attrs_d = self._enforce_href(attrs_d)
context = self._get_context()
attrs_d['rel'] = 'enclosure'
context.setdefault('links', []).append(FeedParserDict(attrs_d))
def _start_source(self, attrs_d):
if 'url' in attrs_d:
# This means that we're processing a source element from an RSS 2.0 feed
self.sourcedata['href'] = attrs_d['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._get_context()['source'] = copy.deepcopy(self.sourcedata)
self.sourcedata.clear()
def _start_content(self, attrs_d):
self.push_content('content', attrs_d, 'text/plain', 1)
src = attrs_d.get('src')
if src:
self.contentparams['src'] = src
self.push('content', 1)
def _start_body(self, attrs_d):
self.push_content('content', attrs_d, 'application/xhtml+xml', 1)
_start_xhtml_body = _start_body
def _start_content_encoded(self, attrs_d):
self.push_content('content', attrs_d, 'text/html', 1)
_start_fullitem = _start_content_encoded
def _end_content(self):
copyToSummary = self.map_content_type(self.contentparams.get('type')) in ({'text/plain'} | self.html_types)
value = self.pop_content('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, attrs_d):
self.push('newlocation', 1)
def _end_newlocation(self):
url = self.pop('newlocation')
context = self._get_context()
# don't set newlocation if the context isn't right
if context is not self.feeddata:
return
context['newlocation'] = make_safe_absolute_uri(self.baseuri, url.strip())

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# Support for the administrative elements extension
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ 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, attrs_d):
self.push('generator', 1)
value = self._get_attribute(attrs_d, 'rdf:resource')
if value:
self.elementstack[-1][2].append(value)
self.pop('generator')
self._get_context()['generator_detail'] = FeedParserDict({'href': value})
def _start_admin_errorreportsto(self, attrs_d):
self.push('errorreportsto', 1)
value = self._get_attribute(attrs_d, 'rdf:resource')
if value:
self.elementstack[-1][2].append(value)
self.pop('errorreportsto')

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# Support for the Creative Commons licensing extensions
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ 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, attrs_d):
context = self._get_context()
value = self._get_attribute(attrs_d, 'rdf:resource')
attrs_d = FeedParserDict()
attrs_d['rel'] = 'license'
if value:
attrs_d['href'] = value
context.setdefault('links', []).append(attrs_d)
def _start_creativecommons_license(self, attrs_d):
self.push('license', 1)
_start_creativeCommons_license = _start_creativecommons_license
def _end_creativecommons_license(self):
value = self.pop('license')
context = self._get_context()
attrs_d = FeedParserDict()
attrs_d['rel'] = 'license'
if value:
attrs_d['href'] = value
context.setdefault('links', []).append(attrs_d)
del context['license']
_end_creativeCommons_license = _end_creativecommons_license

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# Support for the Dublin Core metadata extensions
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ import unicode_literals
from ..datetimes import _parse_date
from ..util import FeedParserDict
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, attrs_d):
self._start_author(attrs_d)
def _start_dc_creator(self, attrs_d):
self._start_author(attrs_d)
def _start_dc_date(self, attrs_d):
self._start_updated(attrs_d)
def _start_dc_description(self, attrs_d):
self._start_description(attrs_d)
def _start_dc_language(self, attrs_d):
self._start_language(attrs_d)
def _start_dc_publisher(self, attrs_d):
self._start_webmaster(attrs_d)
def _start_dc_rights(self, attrs_d):
self._start_rights(attrs_d)
def _start_dc_subject(self, attrs_d):
self._start_category(attrs_d)
def _start_dc_title(self, attrs_d):
self._start_title(attrs_d)
def _start_dcterms_created(self, attrs_d):
self._start_created(attrs_d)
def _start_dcterms_issued(self, attrs_d):
self._start_published(attrs_d)
def _start_dcterms_modified(self, attrs_d):
self._start_updated(attrs_d)
def _start_dcterms_valid(self, attrs_d):
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, attrs_d):
self.incontributor = 1
context = self._get_context()
context.setdefault('contributors', [])
context['contributors'].append(FeedParserDict())
self.push('name', 0)
def _end_dc_contributor(self):
self._end_name()
self.incontributor = 0

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# Support for the GeoRSS format
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ import unicode_literals
from __future__ import generator_stop
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, attrs_d):
self.push('geometry', 0)
context = self._get_context()
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._get_context()
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, attrs_d):
self.push('where', 0)
context = self._get_context()
context['where'] = FeedParserDict()
_start_georss_where = _start_where
def _parse_srs_attrs(self, attrs_d):
srs_name = attrs_d.get('srsname')
try:
srs_dimension = int(attrs_d.get('srsdimension', '2'))
except ValueError:
srs_dimension = 2
context = self._get_context()
context['where']['srsName'] = srs_name
context['where']['srsDimension'] = srs_dimension
def _start_gml_point(self, attrs_d):
self._parse_srs_attrs(attrs_d)
self.ingeometry = 1
self.push('geometry', 0)
def _start_gml_linestring(self, attrs_d):
self._parse_srs_attrs(attrs_d)
self.ingeometry = 'linestring'
self.push('geometry', 0)
def _start_gml_polygon(self, attrs_d):
self._parse_srs_attrs(attrs_d)
self.push('geometry', 0)
def _start_gml_exterior(self, attrs_d):
self.push('geometry', 0)
def _start_gml_linearring(self, attrs_d):
self.ingeometry = 'polygon'
self.push('geometry', 0)
def _start_gml_pos(self, attrs_d):
self.push('pos', 0)
def _end_gml_pos(self):
this = self.pop('pos')
context = self._get_context()
srs_name = context['where'].get('srsName')
srs_dimension = context['where'].get('srsDimension', 2)
swap = True
if srs_name and "EPSG" in srs_name:
epsg = int(srs_name.split(":")[-1])
swap = bool(epsg in _geogCS)
geometry = _parse_georss_point(this, swap=swap, dims=srs_dimension)
if geometry:
self._save_where(geometry)
def _start_gml_poslist(self, attrs_d):
self.push('pos', 0)
def _end_gml_poslist(self):
this = self.pop('pos')
context = self._get_context()
srs_name = context['where'].get('srsName')
srs_dimension = context['where'].get('srsDimension', 2)
swap = True
if srs_name and "EPSG" in srs_name:
epsg = int(srs_name.split(":")[-1])
swap = bool(epsg in _geogCS)
geometry = _parse_poslist(
this, self.ingeometry, swap=swap, dims=srs_dimension)
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:
try:
t = [next(latlons), next(latlons)][::swap and -1 or 1]
if dims == 3:
t.append(next(latlons))
yield tuple(t)
except StopIteration:
return
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,
]

112
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# Support for the iTunes format
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ 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, attrs_d):
self._start_author(attrs_d)
def _end_itunes_author(self):
self._end_author()
def _end_itunes_category(self):
self._end_category()
def _start_itunes_name(self, attrs_d):
self._start_name(attrs_d)
def _end_itunes_name(self):
self._end_name()
def _start_itunes_email(self, attrs_d):
self._start_email(attrs_d)
def _end_itunes_email(self):
self._end_email()
def _start_itunes_subtitle(self, attrs_d):
self._start_subtitle(attrs_d)
def _end_itunes_subtitle(self):
self._end_subtitle()
def _start_itunes_summary(self, attrs_d):
self._start_summary(attrs_d)
def _end_itunes_summary(self):
self._end_summary()
def _start_itunes_owner(self, attrs_d):
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._add_tag(term.strip(), 'http://www.itunes.com/', None)
def _start_itunes_category(self, attrs_d):
self._add_tag(attrs_d.get('text'), 'http://www.itunes.com/', None)
self.push('category', 1)
def _start_itunes_image(self, attrs_d):
self.push('itunes_image', 0)
if attrs_d.get('href'):
self._get_context()['image'] = FeedParserDict({'href': attrs_d.get('href')})
elif attrs_d.get('url'):
self._get_context()['image'] = FeedParserDict({'href': attrs_d.get('url')})
_start_itunes_link = _start_itunes_image
def _end_itunes_block(self):
value = self.pop('itunes_block', 0)
self._get_context()['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._get_context()['itunes_explicit'] = (None, False, True)[(value == 'yes' and 2) or value == 'clean' or 0]

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# Support for the Media RSS format
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ 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, attrs_d):
attrs_d.setdefault('scheme', 'http://search.yahoo.com/mrss/category_schema')
self._start_category(attrs_d)
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._add_tag(term.strip(), None, None)
def _start_media_title(self, attrs_d):
self._start_title(attrs_d)
def _end_media_title(self):
title_depth = self.title_depth
self._end_title()
self.title_depth = title_depth
def _start_media_group(self, attrs_d):
# don't do anything, but don't break the enclosed tags either
pass
def _start_media_rating(self, attrs_d):
context = self._get_context()
context.setdefault('media_rating', attrs_d)
self.push('rating', 1)
def _end_media_rating(self):
rating = self.pop('rating')
if rating is not None and rating.strip():
context = self._get_context()
context['media_rating']['content'] = rating
def _start_media_credit(self, attrs_d):
context = self._get_context()
context.setdefault('media_credit', [])
context['media_credit'].append(attrs_d)
self.push('credit', 1)
def _end_media_credit(self):
credit = self.pop('credit')
if credit is not None and credit.strip():
context = self._get_context()
context['media_credit'][-1]['content'] = credit
def _start_media_description(self, attrs_d):
self._start_description(attrs_d)
def _end_media_description(self):
self._end_description()
def _start_media_restriction(self, attrs_d):
context = self._get_context()
context.setdefault('media_restriction', attrs_d)
self.push('restriction', 1)
def _end_media_restriction(self):
restriction = self.pop('restriction')
if restriction is not None and restriction.strip():
context = self._get_context()
context['media_restriction']['content'] = [cc.strip().lower() for cc in restriction.split(' ')]
def _start_media_license(self, attrs_d):
context = self._get_context()
context.setdefault('media_license', attrs_d)
self.push('license', 1)
def _end_media_license(self):
license_ = self.pop('license')
if license_ is not None and license_.strip():
context = self._get_context()
context['media_license']['content'] = license_
def _start_media_content(self, attrs_d):
context = self._get_context()
context.setdefault('media_content', [])
context['media_content'].append(attrs_d)
def _start_media_thumbnail(self, attrs_d):
context = self._get_context()
context.setdefault('media_thumbnail', [])
self.push('url', 1) # new
context['media_thumbnail'].append(attrs_d)
def _end_media_thumbnail(self):
url = self.pop('url')
context = self._get_context()
if url is not None and url.strip():
if 'url' not in context['media_thumbnail'][-1]:
context['media_thumbnail'][-1]['url'] = url
def _start_media_player(self, attrs_d):
self.push('media_player', 0)
self._get_context()['media_player'] = FeedParserDict(attrs_d)
def _end_media_player(self):
value = self.pop('media_player')
context = self._get_context()
context['media_player']['content'] = value

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# Support for the Podlove Simple Chapters format
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ 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, attrs_d):
context = self._get_context()
if 'psc_chapters' not in context:
self.psc_chapters_flag = True
attrs_d['chapters'] = []
context['psc_chapters'] = util.FeedParserDict(attrs_d)
def _end_psc_chapters(self):
self.psc_chapters_flag = False
def _start_psc_chapter(self, attrs_d):
if self.psc_chapters_flag:
start = self._get_attribute(attrs_d, 'start')
attrs_d['start_parsed'] = _parse_psc_chapter_start(start)
context = self._get_context()['psc_chapters']
context['chapters'].append(util.FeedParserDict(attrs_d))
format_ = re.compile(r'^((\d{2}):)?(\d{2}):(\d{2})(\.(\d{3}))?$')
def _parse_psc_chapter_start(start):
m = 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)

0
vendor/feedparser/parsers/__init__.py vendored Normal file
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81
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# The loose feed parser that interfaces with an SGML parsing library
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ import unicode_literals
class _LooseFeedParser(object):
contentparams = None
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__()
@staticmethod
def _normalize_attributes(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('&amp;', '&')
return k, v
def decode_entities(self, element, data):
data = data.replace('&#60;', '&lt;')
data = data.replace('&#x3c;', '&lt;')
data = data.replace('&#x3C;', '&lt;')
data = data.replace('&#62;', '&gt;')
data = data.replace('&#x3e;', '&gt;')
data = data.replace('&#x3E;', '&gt;')
data = data.replace('&#38;', '&amp;')
data = data.replace('&#x26;', '&amp;')
data = data.replace('&#34;', '&quot;')
data = data.replace('&#x22;', '&quot;')
data = data.replace('&#39;', '&apos;')
data = data.replace('&#x27;', '&apos;')
if not self.contentparams.get('type', 'xml').endswith('xml'):
data = data.replace('&lt;', '<')
data = data.replace('&gt;', '>')
data = data.replace('&amp;', '&')
data = data.replace('&quot;', '"')
data = data.replace('&apos;', "'")
data = data.replace('&#x2f;', '/')
data = data.replace('&#x2F;', '/')
return data
@staticmethod
def strattrs(attrs):
return ''.join(
' %s="%s"' % (n, v.replace('"', '&quot;'))
for n, v in attrs
)

137
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# The strict feed parser that interfaces with an XML parsing library
# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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__()
@staticmethod
def _normalize_attributes(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.track_namespace(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 is None or (prefix == '' and lowernamespace == '')) and givenprefix not in self.namespaces_in_use:
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.namespaces_in_use.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.namespaces_in_use.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

955
vendor/feedparser/sanitizer.py vendored Normal file
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# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ import unicode_literals
import re
from .html import _BaseHTMLProcessor
from .sgml import _SGML_AVAILABLE
from .urls import make_safe_absolute_uri
class _HTMLSanitizer(_BaseHTMLProcessor):
acceptable_elements = {
'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',
'font',
'footer',
'form',
'h1',
'h2',
'h3',
'h4',
'h5',
'h6',
'header',
'hr',
'i',
'img',
'input',
'ins',
'kbd',
'keygen',
'label',
'legend',
'li',
'm',
'map',
'menu',
'meter',
'multicol',
'nav',
'nextid',
'noscript',
'ol',
'optgroup',
'option',
'output',
'p',
'pre',
'progress',
'q',
's',
'samp',
'section',
'select',
'small',
'sound',
'source',
'spacer',
'span',
'strike',
'strong',
'sub',
'sup',
'table',
'tbody',
'td',
'textarea',
'tfoot',
'th',
'thead',
'time',
'tr',
'tt',
'u',
'ul',
'var',
'video',
}
acceptable_attributes = {
'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',
'charset',
'checked',
'choff',
'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',
'hidden',
'hidefocus',
'high',
'href',
'hreflang',
'hspace',
'icon',
'id',
'inputmode',
'ismap',
'keytype',
'label',
'lang',
'leftspacing',
'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',
'urn',
'usemap',
'valign',
'value',
'variable',
'volume',
'vrml',
'vspace',
'width',
'wrap',
'xml:lang',
}
unacceptable_elements_with_end_tag = {
'applet',
'script',
'style',
}
acceptable_css_properties = {
'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 = {
'!important',
'aqua',
'auto',
'black',
'block',
'blue',
'bold',
'both',
'bottom',
'brown',
'center',
'collapse',
'dashed',
'dotted',
'fuchsia',
'gray',
'green',
'italic',
'left',
'lime',
'maroon',
'medium',
'navy',
'none',
'normal',
'nowrap',
'olive',
'pointer',
'purple',
'red',
'right',
'silver',
'solid',
'teal',
'top',
'transparent',
'underline',
'white',
'yellow',
}
valid_css_values = re.compile(
r'^('
r'#[0-9a-f]+' # Hex values
r'|rgb\(\d+%?,\d*%?,?\d*%?\)?' # RGB values
r'|\d{0,2}\.?\d{0,2}(cm|em|ex|in|mm|pc|pt|px|%|,|\))?' # Sizes/widths
r')$'
)
mathml_elements = {
'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 = {
'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 = {
'a',
'animate',
'animateColor',
'animateMotion',
'animateTransform',
'circle',
'defs',
'desc',
'ellipse',
'font-face',
'font-face-name',
'font-face-src',
'foreignObject',
'g',
'glyph',
'hkern',
'line',
'linearGradient',
'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 = {
'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',
'descent',
'display',
'dur',
'dx',
'dy',
'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',
'marker-end',
'marker-mid',
'marker-start',
'markerHeight',
'markerUnits',
'markerWidth',
'mathematical',
'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 = {
'fill',
'fill-opacity',
'fill-rule',
'stroke',
'stroke-linecap',
'stroke-linejoin',
'stroke-opacity',
'stroke-width',
}
def __init__(self, encoding=None, _type='application/xhtml+xml'):
super(_HTMLSanitizer, self).__init__(encoding, _type)
self.unacceptablestack = 0
self.mathmlOK = 0
self.svgOK = 0
def reset(self):
super(_HTMLSanitizer, self).reset()
self.unacceptablestack = 0
self.mathmlOK = 0
self.svgOK = 0
def unknown_starttag(self, tag, attrs):
acceptable_attributes = self.acceptable_attributes
keymap = {}
if tag not 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 = {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 = {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 tag not 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 = make_safe_absolute_uri(value)
clean_attrs.append((key, value))
elif key == 'style':
clean_value = self.sanitize_style(value)
if clean_value:
clean_attrs.append((key, clean_value))
super(_HTMLSanitizer, self).unknown_starttag(tag, clean_attrs)
def unknown_endtag(self, tag):
if tag not 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
super(_HTMLSanitizer, self).unknown_endtag(tag)
def handle_pi(self, text):
pass
def handle_decl(self, text):
pass
def handle_data(self, text):
if not self.unacceptablestack:
super(_HTMLSanitizer, self).handle_data(text)
def sanitize_style(self, style):
# disallow urls
style = re.compile(r'url\s*\(\s*[^\s)]+?\s*\)\s*').sub(' ', style)
# gauntlet
if not re.match(r"""^([:,;#%.\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(r"\s*[-\w]+\s*:\s*[^:;]*;?", '', style).strip():
return ''
clean = []
for prop, value in re.findall(r"([-\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 (
keyword not 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 = super(_HTMLSanitizer, self).parse_comment(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 _sanitize_html(html_source, encoding, _type):
if not _SGML_AVAILABLE:
return html_source
p = _HTMLSanitizer(encoding, _type)
html_source = html_source.replace('<![CDATA[', '&lt;![CDATA[')
p.feed(html_source)
data = p.output()
data = data.strip().replace('\r\n', '\n')
return data
# Match XML entity declarations.
# Example: <!ENTITY copyright "(C)">
RE_ENTITY_PATTERN = re.compile(br'^\s*<!ENTITY([^>]*?)>', re.MULTILINE)
# Match XML DOCTYPE declarations.
# Example: <!DOCTYPE feed [ ]>
RE_DOCTYPE_PATTERN = re.compile(br'^\s*<!DOCTYPE([^>]*?)>', re.MULTILINE)
# Match safe entity declarations.
# This will allow hexadecimal character references through,
# as well as text, but not arbitrary nested entities.
# Example: cubed "&#179;"
# Example: copyright "(C)"
# Forbidden: explode1 "&explode2;&explode2;"
RE_SAFE_ENTITY_PATTERN = re.compile(br'\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 '<?' or '<!'.
start = re.search(br'<\w', data)
start = start and start.start() or -1
head, data = data[:start+1], data[start+1:]
# Save and then remove all of the ENTITY declarations.
entity_results = RE_ENTITY_PATTERN.findall(head)
head = RE_ENTITY_PATTERN.sub(b'', head)
# Find the DOCTYPE declaration and check the feed type.
doctype_results = RE_DOCTYPE_PATTERN.findall(head)
doctype = doctype_results and doctype_results[0] or b''
if b'netscape' in doctype.lower():
version = 'rss091n'
else:
version = None
# Re-insert the safe ENTITY declarations if a DOCTYPE was found.
replacement = b''
if len(doctype_results) == 1 and entity_results:
safe_entities = [
e
for e in entity_results
if RE_SAFE_ENTITY_PATTERN.match(e)
]
if safe_entities:
replacement = b'<!DOCTYPE feed [\n<!ENTITY' \
+ b'>\n<!ENTITY '.join(safe_entities) \
+ b'>\n]>'
data = RE_DOCTYPE_PATTERN.sub(replacement, head) + data
# Precompute the safe entities for the loose parser.
safe_entities = {
k.decode('utf-8'): v.decode('utf-8')
for k, v in RE_SAFE_ENTITY_PATTERN.findall(replacement)
}
return version, data, safe_entities

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# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
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):
SGMLParseError = EnvironmentError
class SGMLParser(object):
lasttag = None
rawdata = None
def close(self):
pass
def feed(self, data):
pass
def goahead(self, i):
pass
def parse_declaration(self, i):
pass
def parse_starttag(self, i):
pass
def reset(self):
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(r'&#(\d+|[xX][0-9a-fA-F]+);')
tagfind = re.compile(r'[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(
r'('
r"""[^'"<>]"""
r"""|"[^"]*"(?=>|/|\s|\w+=)"""
r"""|'[^']*'(?=>|/|\s|\w+=))*(?=[<>])"""
r"""|.*?(?=[<>]"""
r')'
)
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()

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# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ import unicode_literals
import re
try:
import urllib.parse as urlparse
except ImportError:
import urlparse as urlparse
from .html import _BaseHTMLProcessor
# 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',
)
_urifixer = re.compile('^([A-Za-z][A-Za-z0-9+-.]*://)(/*)(.*?)')
def _urljoin(base, uri):
uri = _urifixer.sub(r'\1\3', uri)
try:
uri = urlparse.urljoin(base, uri)
except ValueError:
uri = ''
return uri
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 = ''
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 make_safe_absolute_uri(base, rel=None):
# bail if ACCEPTABLE_URI_SCHEMES is empty
if not ACCEPTABLE_URI_SCHEMES:
return _urljoin(base, rel or '')
if not base:
return rel or ''
if not rel:
try:
scheme = urlparse.urlparse(base)[0]
except ValueError:
return ''
if not scheme or scheme in ACCEPTABLE_URI_SCHEMES:
return base
return ''
uri = _urljoin(base, rel)
if uri.strip().split(':', 1)[0] not in ACCEPTABLE_URI_SCHEMES:
return ''
return uri
class RelativeURIResolver(_BaseHTMLProcessor):
relative_uris = {
('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 resolve_uri(self, uri):
return make_safe_absolute_uri(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.resolve_uri(value) or value) for key, value in attrs]
super(RelativeURIResolver, self).unknown_starttag(tag, attrs)
def resolve_relative_uris(html_source, base_uri, encoding, type_):
p = RelativeURIResolver(base_uri, encoding, type_)
p.feed(html_source)
return p.output()

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# Copyright 2010-2020 Kurt McKee <contactme@kurtmckee.org>
# 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
from __future__ import unicode_literals
import warnings
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'] == 'enclosure'
]
elif key == 'license':
for link in dict.__getitem__(self, 'links'):
if link['rel'] == '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, k, default):
if k not in self:
self[k] = default
return default
return self[k]
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):
# This is incorrect behavior -- dictionaries shouldn't be hashable.
# Note to self: remove this behavior in the future.
return id(self)