4014 lines
163 KiB
Python
4014 lines
163 KiB
Python
"""Universal feed parser
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Handles RSS 0.9x, RSS 1.0, RSS 2.0, CDF, Atom 0.3, and Atom 1.0 feeds
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Visit https://code.google.com/p/feedparser/ for the latest version
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Visit http://packages.python.org/feedparser/ for the latest documentation
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Required: Python 2.4 or later
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Recommended: iconv_codec <http://cjkpython.i18n.org/>
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"""
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__version__ = "5.1.3"
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__license__ = """
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Copyright (c) 2010-2012 Kurt McKee <contactme@kurtmckee.org>
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Copyright (c) 2002-2008 Mark Pilgrim
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS'
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE."""
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__author__ = "Mark Pilgrim <http://diveintomark.org/>"
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__contributors__ = ["Jason Diamond <http://injektilo.org/>",
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"John Beimler <http://john.beimler.org/>",
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"Fazal Majid <http://www.majid.info/mylos/weblog/>",
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"Aaron Swartz <http://aaronsw.com/>",
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"Kevin Marks <http://epeus.blogspot.com/>",
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"Sam Ruby <http://intertwingly.net/>",
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"Ade Oshineye <http://blog.oshineye.com/>",
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"Martin Pool <http://sourcefrog.net/>",
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"Kurt McKee <http://kurtmckee.org/>",
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"Bernd Schlapsi <https://github.com/brot>",]
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# HTTP "User-Agent" header to send to servers when downloading feeds.
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# If you are embedding feedparser in a larger application, you should
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# change this to your application name and URL.
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USER_AGENT = "UniversalFeedParser/%s +https://code.google.com/p/feedparser/" % __version__
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# HTTP "Accept" header to send to servers when downloading feeds. If you don't
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# want to send an Accept header, set this to None.
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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"
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# List of preferred XML parsers, by SAX driver name. These will be tried first,
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# but if they're not installed, Python will keep searching through its own list
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# of pre-installed parsers until it finds one that supports everything we need.
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PREFERRED_XML_PARSERS = ["drv_libxml2"]
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# If you want feedparser to automatically run HTML markup through HTML Tidy, set
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# this to 1. Requires mxTidy <http://www.egenix.com/files/python/mxTidy.html>
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# or utidylib <http://utidylib.berlios.de/>.
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TIDY_MARKUP = 0
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# List of Python interfaces for HTML Tidy, in order of preference. Only useful
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# if TIDY_MARKUP = 1
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PREFERRED_TIDY_INTERFACES = ["uTidy", "mxTidy"]
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# If you want feedparser to automatically resolve all relative URIs, set this
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# to 1.
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RESOLVE_RELATIVE_URIS = 1
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# If you want feedparser to automatically sanitize all potentially unsafe
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# HTML content, set this to 1.
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SANITIZE_HTML = 1
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# If you want feedparser to automatically parse microformat content embedded
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# in entry contents, set this to 1
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PARSE_MICROFORMATS = 1
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# ---------- Python 3 modules (make it work if possible) ----------
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try:
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import rfc822
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except ImportError:
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from email import _parseaddr as rfc822
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try:
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# Python 3.1 introduces bytes.maketrans and simultaneously
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# deprecates string.maketrans; use bytes.maketrans if possible
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_maketrans = bytes.maketrans
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except (NameError, AttributeError):
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import string
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_maketrans = string.maketrans
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# base64 support for Atom feeds that contain embedded binary data
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try:
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import base64, binascii
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except ImportError:
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base64 = binascii = None
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else:
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# Python 3.1 deprecates decodestring in favor of decodebytes
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_base64decode = getattr(base64, 'decodebytes', base64.decodestring)
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# _s2bytes: convert a UTF-8 str to bytes if the interpreter is Python 3
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# _l2bytes: convert a list of ints to bytes if the interpreter is Python 3
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try:
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if bytes is str:
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# In Python 2.5 and below, bytes doesn't exist (NameError)
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# In Python 2.6 and above, bytes and str are the same type
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raise NameError
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except NameError:
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# Python 2
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def _s2bytes(s):
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return s
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def _l2bytes(l):
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return ''.join(map(chr, l))
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else:
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# Python 3
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def _s2bytes(s):
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return bytes(s, 'utf8')
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def _l2bytes(l):
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return bytes(l)
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# If you want feedparser to allow all URL schemes, set this to ()
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# List culled from Python's urlparse documentation at:
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# http://docs.python.org/library/urlparse.html
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# as well as from "URI scheme" at Wikipedia:
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# https://secure.wikimedia.org/wikipedia/en/wiki/URI_scheme
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# Many more will likely need to be added!
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ACCEPTABLE_URI_SCHEMES = (
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'file', 'ftp', 'gopher', 'h323', 'hdl', 'http', 'https', 'imap', 'magnet',
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'mailto', 'mms', 'news', 'nntp', 'prospero', 'rsync', 'rtsp', 'rtspu',
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'sftp', 'shttp', 'sip', 'sips', 'snews', 'svn', 'svn+ssh', 'telnet',
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'wais',
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# Additional common-but-unofficial schemes
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'aim', 'callto', 'cvs', 'facetime', 'feed', 'git', 'gtalk', 'irc', 'ircs',
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'irc6', 'itms', 'mms', 'msnim', 'skype', 'ssh', 'smb', 'svn', 'ymsg',
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)
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#ACCEPTABLE_URI_SCHEMES = ()
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# ---------- required modules (should come with any Python distribution) ----------
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import cgi
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import codecs
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import copy
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import datetime
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import re
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import struct
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import time
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import types
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import urllib
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import urllib2
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import urlparse
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import warnings
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from htmlentitydefs import name2codepoint, codepoint2name, entitydefs
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try:
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from io import BytesIO as _StringIO
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except ImportError:
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try:
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from cStringIO import StringIO as _StringIO
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except ImportError:
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from StringIO import StringIO as _StringIO
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# ---------- optional modules (feedparser will work without these, but with reduced functionality) ----------
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# gzip is included with most Python distributions, but may not be available if you compiled your own
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try:
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import gzip
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except ImportError:
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gzip = None
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try:
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import zlib
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except ImportError:
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zlib = None
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# If a real XML parser is available, feedparser will attempt to use it. feedparser has
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# been tested with the built-in SAX parser and libxml2. On platforms where the
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# Python distribution does not come with an XML parser (such as Mac OS X 10.2 and some
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# versions of FreeBSD), feedparser will quietly fall back on regex-based parsing.
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try:
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import xml.sax
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from xml.sax.saxutils import escape as _xmlescape
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except ImportError:
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_XML_AVAILABLE = 0
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def _xmlescape(data,entities={}):
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data = data.replace('&', '&')
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data = data.replace('>', '>')
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data = data.replace('<', '<')
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for char, entity in entities:
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data = data.replace(char, entity)
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return data
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else:
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try:
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xml.sax.make_parser(PREFERRED_XML_PARSERS) # test for valid parsers
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except xml.sax.SAXReaderNotAvailable:
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_XML_AVAILABLE = 0
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else:
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_XML_AVAILABLE = 1
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# sgmllib is not available by default in Python 3; if the end user doesn't have
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# it available then we'll lose illformed XML parsing, content santizing, and
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# microformat support (at least while feedparser depends on BeautifulSoup).
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try:
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import sgmllib
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except ImportError:
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# This is probably Python 3, which doesn't include sgmllib anymore
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_SGML_AVAILABLE = 0
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# Mock sgmllib enough to allow subclassing later on
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class sgmllib(object):
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class SGMLParser(object):
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def goahead(self, i):
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pass
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def parse_starttag(self, i):
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pass
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else:
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_SGML_AVAILABLE = 1
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# sgmllib defines a number of module-level regular expressions that are
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# insufficient for the XML parsing feedparser needs. Rather than modify
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# the variables directly in sgmllib, they're defined here using the same
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# names, and the compiled code objects of several sgmllib.SGMLParser
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# methods are copied into _BaseHTMLProcessor so that they execute in
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# feedparser's scope instead of sgmllib's scope.
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charref = re.compile('&#(\d+|[xX][0-9a-fA-F]+);')
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tagfind = re.compile('[a-zA-Z][-_.:a-zA-Z0-9]*')
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attrfind = re.compile(
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r'\s*([a-zA-Z_][-:.a-zA-Z_0-9]*)[$]?(\s*=\s*'
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r'(\'[^\']*\'|"[^"]*"|[][\-a-zA-Z0-9./,:;+*%?!&$\(\)_#=~\'"@]*))?'
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)
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# Unfortunately, these must be copied over to prevent NameError exceptions
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entityref = sgmllib.entityref
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incomplete = sgmllib.incomplete
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interesting = sgmllib.interesting
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shorttag = sgmllib.shorttag
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shorttagopen = sgmllib.shorttagopen
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starttagopen = sgmllib.starttagopen
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class _EndBracketRegEx:
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def __init__(self):
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# Overriding the built-in sgmllib.endbracket regex allows the
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# parser to find angle brackets embedded in element attributes.
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self.endbracket = re.compile('''([^'"<>]|"[^"]*"(?=>|/|\s|\w+=)|'[^']*'(?=>|/|\s|\w+=))*(?=[<>])|.*?(?=[<>])''')
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def search(self, target, index=0):
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match = self.endbracket.match(target, index)
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if match is not None:
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# Returning a new object in the calling thread's context
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# resolves a thread-safety.
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return EndBracketMatch(match)
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return None
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class EndBracketMatch:
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def __init__(self, match):
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self.match = match
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def start(self, n):
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return self.match.end(n)
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endbracket = _EndBracketRegEx()
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# iconv_codec provides support for more character encodings.
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# It's available from http://cjkpython.i18n.org/
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try:
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import iconv_codec
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except ImportError:
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pass
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# chardet library auto-detects character encodings
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# Download from http://chardet.feedparser.org/
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try:
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import chardet
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except ImportError:
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chardet = None
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# BeautifulSoup is used to extract microformat content from HTML
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# feedparser is tested using BeautifulSoup 3.2.0
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# http://www.crummy.com/software/BeautifulSoup/
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try:
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import BeautifulSoup
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except ImportError:
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BeautifulSoup = None
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PARSE_MICROFORMATS = False
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# ---------- don't touch these ----------
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class ThingsNobodyCaresAboutButMe(Exception): pass
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class CharacterEncodingOverride(ThingsNobodyCaresAboutButMe): pass
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class CharacterEncodingUnknown(ThingsNobodyCaresAboutButMe): pass
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class NonXMLContentType(ThingsNobodyCaresAboutButMe): pass
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class UndeclaredNamespace(Exception): pass
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SUPPORTED_VERSIONS = {'': u'unknown',
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'rss090': u'RSS 0.90',
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'rss091n': u'RSS 0.91 (Netscape)',
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'rss091u': u'RSS 0.91 (Userland)',
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'rss092': u'RSS 0.92',
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'rss093': u'RSS 0.93',
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'rss094': u'RSS 0.94',
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'rss20': u'RSS 2.0',
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'rss10': u'RSS 1.0',
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'rss': u'RSS (unknown version)',
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'atom01': u'Atom 0.1',
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'atom02': u'Atom 0.2',
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'atom03': u'Atom 0.3',
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'atom10': u'Atom 1.0',
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'atom': u'Atom (unknown version)',
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'cdf': u'CDF',
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}
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class FeedParserDict(dict):
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keymap = {'channel': 'feed',
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'items': 'entries',
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'guid': 'id',
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'date': 'updated',
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'date_parsed': 'updated_parsed',
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'description': ['summary', 'subtitle'],
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'description_detail': ['summary_detail', 'subtitle_detail'],
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'url': ['href'],
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'modified': 'updated',
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'modified_parsed': 'updated_parsed',
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'issued': 'published',
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'issued_parsed': 'published_parsed',
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'copyright': 'rights',
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'copyright_detail': 'rights_detail',
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'tagline': 'subtitle',
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'tagline_detail': 'subtitle_detail'}
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def __getitem__(self, key):
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if key == 'category':
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try:
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return dict.__getitem__(self, 'tags')[0]['term']
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except IndexError:
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raise KeyError, "object doesn't have key 'category'"
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elif key == 'enclosures':
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norel = lambda link: FeedParserDict([(name,value) for (name,value) in link.items() if name!='rel'])
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return [norel(link) for link in dict.__getitem__(self, 'links') if link['rel']==u'enclosure']
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elif key == 'license':
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for link in dict.__getitem__(self, 'links'):
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if link['rel']==u'license' and 'href' in link:
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return link['href']
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elif key == 'updated':
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# Temporarily help developers out by keeping the old
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# broken behavior that was reported in issue 310.
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# This fix was proposed in issue 328.
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if not dict.__contains__(self, 'updated') and \
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dict.__contains__(self, 'published'):
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warnings.warn("To avoid breaking existing software while "
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"fixing issue 310, a temporary mapping has been created "
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"from `updated` to `published` if `updated` doesn't "
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"exist. This fallback will be removed in a future version "
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"of feedparser.", DeprecationWarning)
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return dict.__getitem__(self, 'published')
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return dict.__getitem__(self, 'updated')
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elif key == 'updated_parsed':
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if not dict.__contains__(self, 'updated_parsed') and \
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dict.__contains__(self, 'published_parsed'):
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warnings.warn("To avoid breaking existing software while "
|
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"fixing issue 310, a temporary mapping has been created "
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"from `updated_parsed` to `published_parsed` if "
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"`updated_parsed` doesn't exist. This fallback will be "
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"removed in a future version of feedparser.",
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DeprecationWarning)
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return dict.__getitem__(self, 'published_parsed')
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return dict.__getitem__(self, 'updated_parsed')
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else:
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realkey = self.keymap.get(key, key)
|
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if isinstance(realkey, list):
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for k in realkey:
|
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if dict.__contains__(self, k):
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return dict.__getitem__(self, k)
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elif dict.__contains__(self, realkey):
|
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return dict.__getitem__(self, realkey)
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return dict.__getitem__(self, key)
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|
|
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def __contains__(self, key):
|
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if key in ('updated', 'updated_parsed'):
|
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# Temporarily help developers out by keeping the old
|
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# broken behavior that was reported in issue 310.
|
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# This fix was proposed in issue 328.
|
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return dict.__contains__(self, key)
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try:
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self.__getitem__(key)
|
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except KeyError:
|
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return False
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else:
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return True
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|
|
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has_key = __contains__
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|
|
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def get(self, key, default=None):
|
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try:
|
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return self.__getitem__(key)
|
|
except KeyError:
|
|
return default
|
|
|
|
def __setitem__(self, key, value):
|
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key = self.keymap.get(key, key)
|
|
if isinstance(key, list):
|
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key = key[0]
|
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return dict.__setitem__(self, key, value)
|
|
|
|
def setdefault(self, key, value):
|
|
if key not in self:
|
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self[key] = value
|
|
return value
|
|
return self[key]
|
|
|
|
def __getattr__(self, key):
|
|
# __getattribute__() is called first; this will be called
|
|
# only if an attribute was not already found
|
|
try:
|
|
return self.__getitem__(key)
|
|
except KeyError:
|
|
raise AttributeError, "object has no attribute '%s'" % key
|
|
|
|
def __hash__(self):
|
|
return id(self)
|
|
|
|
_cp1252 = {
|
|
128: unichr(8364), # euro sign
|
|
130: unichr(8218), # single low-9 quotation mark
|
|
131: unichr( 402), # latin small letter f with hook
|
|
132: unichr(8222), # double low-9 quotation mark
|
|
133: unichr(8230), # horizontal ellipsis
|
|
134: unichr(8224), # dagger
|
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135: unichr(8225), # double dagger
|
|
136: unichr( 710), # modifier letter circumflex accent
|
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137: unichr(8240), # per mille sign
|
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138: unichr( 352), # latin capital letter s with caron
|
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139: unichr(8249), # single left-pointing angle quotation mark
|
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140: unichr( 338), # latin capital ligature oe
|
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142: unichr( 381), # latin capital letter z with caron
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145: unichr(8216), # left single quotation mark
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146: unichr(8217), # right single quotation mark
|
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147: unichr(8220), # left double quotation mark
|
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148: unichr(8221), # right double quotation mark
|
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149: unichr(8226), # bullet
|
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150: unichr(8211), # en dash
|
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151: unichr(8212), # em dash
|
|
152: unichr( 732), # small tilde
|
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153: unichr(8482), # trade mark sign
|
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154: unichr( 353), # latin small letter s with caron
|
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155: unichr(8250), # single right-pointing angle quotation mark
|
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156: unichr( 339), # latin small ligature oe
|
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158: unichr( 382), # latin small letter z with caron
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159: unichr( 376), # latin capital letter y with diaeresis
|
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}
|
|
|
|
_urifixer = re.compile('^([A-Za-z][A-Za-z0-9+-.]*://)(/*)(.*?)')
|
|
def _urljoin(base, uri):
|
|
uri = _urifixer.sub(r'\1\3', uri)
|
|
#try:
|
|
if not isinstance(uri, unicode):
|
|
uri = uri.decode('utf-8', 'ignore')
|
|
uri = urlparse.urljoin(base, uri)
|
|
if not isinstance(uri, unicode):
|
|
return uri.decode('utf-8', 'ignore')
|
|
return uri
|
|
#except:
|
|
# uri = urlparse.urlunparse([urllib.quote(part) for part in urlparse.urlparse(uri)])
|
|
# return urlparse.urljoin(base, uri)
|
|
|
|
class _FeedParserMixin:
|
|
namespaces = {
|
|
'': '',
|
|
'http://backend.userland.com/rss': '',
|
|
'http://blogs.law.harvard.edu/tech/rss': '',
|
|
'http://purl.org/rss/1.0/': '',
|
|
'http://my.netscape.com/rdf/simple/0.9/': '',
|
|
'http://example.com/newformat#': '',
|
|
'http://example.com/necho': '',
|
|
'http://purl.org/echo/': '',
|
|
'uri/of/echo/namespace#': '',
|
|
'http://purl.org/pie/': '',
|
|
'http://purl.org/atom/ns#': '',
|
|
'http://www.w3.org/2005/Atom': '',
|
|
'http://purl.org/rss/1.0/modules/rss091#': '',
|
|
|
|
'http://webns.net/mvcb/': 'admin',
|
|
'http://purl.org/rss/1.0/modules/aggregation/': 'ag',
|
|
'http://purl.org/rss/1.0/modules/annotate/': 'annotate',
|
|
'http://media.tangent.org/rss/1.0/': 'audio',
|
|
'http://backend.userland.com/blogChannelModule': 'blogChannel',
|
|
'http://web.resource.org/cc/': 'cc',
|
|
'http://backend.userland.com/creativeCommonsRssModule': 'creativeCommons',
|
|
'http://purl.org/rss/1.0/modules/company': 'co',
|
|
'http://purl.org/rss/1.0/modules/content/': 'content',
|
|
'http://my.theinfo.org/changed/1.0/rss/': 'cp',
|
|
'http://purl.org/dc/elements/1.1/': 'dc',
|
|
'http://purl.org/dc/terms/': 'dcterms',
|
|
'http://purl.org/rss/1.0/modules/email/': 'email',
|
|
'http://purl.org/rss/1.0/modules/event/': 'ev',
|
|
'http://rssnamespace.org/feedburner/ext/1.0': 'feedburner',
|
|
'http://freshmeat.net/rss/fm/': 'fm',
|
|
'http://xmlns.com/foaf/0.1/': 'foaf',
|
|
'http://www.w3.org/2003/01/geo/wgs84_pos#': 'geo',
|
|
'http://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',
|
|
}
|
|
_matchnamespaces = {}
|
|
|
|
can_be_relative_uri = set(['link', 'id', 'wfw_comment', 'wfw_commentrss', 'docs', 'url', 'href', 'comments', 'icon', 'logo'])
|
|
can_contain_relative_uris = set(['content', 'title', 'summary', 'info', 'tagline', 'subtitle', 'copyright', 'rights', 'description'])
|
|
can_contain_dangerous_markup = set(['content', 'title', 'summary', 'info', 'tagline', 'subtitle', 'copyright', 'rights', 'description'])
|
|
html_types = [u'text/html', u'application/xhtml+xml']
|
|
|
|
def __init__(self, baseuri=None, baselang=None, encoding=u'utf-8'):
|
|
if not self._matchnamespaces:
|
|
for k, v in self.namespaces.items():
|
|
self._matchnamespaces[k.lower()] = v
|
|
self.feeddata = FeedParserDict() # feed-level data
|
|
self.encoding = encoding # character encoding
|
|
self.entries = [] # list of entry-level data
|
|
self.version = u'' # feed type/version, see SUPPORTED_VERSIONS
|
|
self.namespacesInUse = {} # dictionary of namespaces defined by the feed
|
|
|
|
# the following are used internally to track state;
|
|
# this is really out of control and should be refactored
|
|
self.infeed = 0
|
|
self.inentry = 0
|
|
self.incontent = 0
|
|
self.intextinput = 0
|
|
self.inimage = 0
|
|
self.inauthor = 0
|
|
self.incontributor = 0
|
|
self.inpublisher = 0
|
|
self.insource = 0
|
|
self.sourcedata = FeedParserDict()
|
|
self.contentparams = FeedParserDict()
|
|
self._summaryKey = None
|
|
self.namespacemap = {}
|
|
self.elementstack = []
|
|
self.basestack = []
|
|
self.langstack = []
|
|
self.baseuri = baseuri or u''
|
|
self.lang = baselang or None
|
|
self.svgOK = 0
|
|
self.title_depth = -1
|
|
self.depth = 0
|
|
if baselang:
|
|
self.feeddata['language'] = baselang.replace('_','-')
|
|
|
|
# A map of the following form:
|
|
# {
|
|
# object_that_value_is_set_on: {
|
|
# property_name: depth_of_node_property_was_extracted_from,
|
|
# other_property: depth_of_node_property_was_extracted_from,
|
|
# },
|
|
# }
|
|
self.property_depth_map = {}
|
|
|
|
def _normalize_attributes(self, kv):
|
|
k = kv[0].lower()
|
|
v = k in ('rel', 'type') and kv[1].lower() or kv[1]
|
|
# the sgml parser doesn't handle entities in attributes, nor
|
|
# does it pass the attribute values through as unicode, while
|
|
# strict xml parsers do -- account for this difference
|
|
if isinstance(self, _LooseFeedParser):
|
|
v = v.replace('&', '&')
|
|
if not isinstance(v, unicode):
|
|
v = v.decode('utf-8')
|
|
return (k, v)
|
|
|
|
def unknown_starttag(self, tag, attrs):
|
|
# increment depth counter
|
|
self.depth += 1
|
|
|
|
# normalize attrs
|
|
attrs = map(self._normalize_attributes, attrs)
|
|
|
|
# track xml:base and xml:lang
|
|
attrsD = dict(attrs)
|
|
baseuri = attrsD.get('xml:base', attrsD.get('base')) or self.baseuri
|
|
if not isinstance(baseuri, unicode):
|
|
baseuri = baseuri.decode(self.encoding, 'ignore')
|
|
# ensure that self.baseuri is always an absolute URI that
|
|
# uses a whitelisted URI scheme (e.g. not `javscript:`)
|
|
if self.baseuri:
|
|
self.baseuri = _makeSafeAbsoluteURI(self.baseuri, baseuri) or self.baseuri
|
|
else:
|
|
self.baseuri = _urljoin(self.baseuri, baseuri)
|
|
lang = attrsD.get('xml:lang', attrsD.get('lang'))
|
|
if lang == '':
|
|
# xml:lang could be explicitly set to '', we need to capture that
|
|
lang = None
|
|
elif lang is None:
|
|
# if no xml:lang is specified, use parent lang
|
|
lang = self.lang
|
|
if lang:
|
|
if tag in ('feed', 'rss', 'rdf:RDF'):
|
|
self.feeddata['language'] = lang.replace('_','-')
|
|
self.lang = lang
|
|
self.basestack.append(self.baseuri)
|
|
self.langstack.append(lang)
|
|
|
|
# track namespaces
|
|
for prefix, uri in attrs:
|
|
if prefix.startswith('xmlns:'):
|
|
self.trackNamespace(prefix[6:], uri)
|
|
elif prefix == 'xmlns':
|
|
self.trackNamespace(None, uri)
|
|
|
|
# track inline content
|
|
if self.incontent and not self.contentparams.get('type', u'xml').endswith(u'xml'):
|
|
if tag in ('xhtml:div', 'div'):
|
|
return # typepad does this 10/2007
|
|
# element declared itself as escaped markup, but it isn't really
|
|
self.contentparams['type'] = u'application/xhtml+xml'
|
|
if self.incontent and self.contentparams.get('type') == u'application/xhtml+xml':
|
|
if tag.find(':') <> -1:
|
|
prefix, tag = tag.split(':', 1)
|
|
namespace = self.namespacesInUse.get(prefix, '')
|
|
if tag=='math' and namespace=='http://www.w3.org/1998/Math/MathML':
|
|
attrs.append(('xmlns',namespace))
|
|
if tag=='svg' and namespace=='http://www.w3.org/2000/svg':
|
|
attrs.append(('xmlns',namespace))
|
|
if tag == 'svg':
|
|
self.svgOK += 1
|
|
return self.handle_data('<%s%s>' % (tag, self.strattrs(attrs)), escape=0)
|
|
|
|
# match namespaces
|
|
if tag.find(':') <> -1:
|
|
prefix, suffix = tag.split(':', 1)
|
|
else:
|
|
prefix, suffix = '', tag
|
|
prefix = self.namespacemap.get(prefix, prefix)
|
|
if prefix:
|
|
prefix = prefix + '_'
|
|
|
|
# special hack for better tracking of empty textinput/image elements in illformed feeds
|
|
if (not prefix) and tag not in ('title', 'link', 'description', 'name'):
|
|
self.intextinput = 0
|
|
if (not prefix) and tag not in ('title', 'link', 'description', 'url', 'href', 'width', 'height'):
|
|
self.inimage = 0
|
|
|
|
# call special handler (if defined) or default handler
|
|
methodname = '_start_' + prefix + suffix
|
|
try:
|
|
method = getattr(self, methodname)
|
|
return method(attrsD)
|
|
except AttributeError:
|
|
# Since there's no handler or something has gone wrong we explicitly add the element and its attributes
|
|
unknown_tag = prefix + suffix
|
|
if len(attrsD) == 0:
|
|
# No attributes so merge it into the encosing dictionary
|
|
return self.push(unknown_tag, 1)
|
|
else:
|
|
# Has attributes so create it in its own dictionary
|
|
context = self._getContext()
|
|
context[unknown_tag] = attrsD
|
|
|
|
def unknown_endtag(self, tag):
|
|
# match namespaces
|
|
if tag.find(':') <> -1:
|
|
prefix, suffix = tag.split(':', 1)
|
|
else:
|
|
prefix, suffix = '', tag
|
|
prefix = self.namespacemap.get(prefix, prefix)
|
|
if prefix:
|
|
prefix = prefix + '_'
|
|
if suffix == 'svg' and self.svgOK:
|
|
self.svgOK -= 1
|
|
|
|
# call special handler (if defined) or default handler
|
|
methodname = '_end_' + prefix + suffix
|
|
try:
|
|
if self.svgOK:
|
|
raise AttributeError()
|
|
method = getattr(self, methodname)
|
|
method()
|
|
except AttributeError:
|
|
self.pop(prefix + suffix)
|
|
|
|
# track inline content
|
|
if self.incontent and not self.contentparams.get('type', u'xml').endswith(u'xml'):
|
|
# element declared itself as escaped markup, but it isn't really
|
|
if tag in ('xhtml:div', 'div'):
|
|
return # typepad does this 10/2007
|
|
self.contentparams['type'] = u'application/xhtml+xml'
|
|
if self.incontent and self.contentparams.get('type') == u'application/xhtml+xml':
|
|
tag = tag.split(':')[-1]
|
|
self.handle_data('</%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 ' ', ref will be '160'
|
|
if not self.elementstack:
|
|
return
|
|
ref = ref.lower()
|
|
if ref in ('34', '38', '39', '60', '62', 'x22', 'x26', 'x27', 'x3c', 'x3e'):
|
|
text = '&#%s;' % ref
|
|
else:
|
|
if ref[0] == 'x':
|
|
c = int(ref[1:], 16)
|
|
else:
|
|
c = int(ref)
|
|
text = unichr(c).encode('utf-8')
|
|
self.elementstack[-1][2].append(text)
|
|
|
|
def handle_entityref(self, ref):
|
|
# called for each entity reference, e.g. for '©', ref will be 'copy'
|
|
if not self.elementstack:
|
|
return
|
|
if ref in ('lt', 'gt', 'quot', 'amp', 'apos'):
|
|
text = '&%s;' % ref
|
|
elif ref in self.entities:
|
|
text = self.entities[ref]
|
|
if text.startswith('&#') and text.endswith(';'):
|
|
return self.handle_entityref(text)
|
|
else:
|
|
try:
|
|
name2codepoint[ref]
|
|
except KeyError:
|
|
text = '&%s;' % ref
|
|
else:
|
|
text = unichr(name2codepoint[ref]).encode('utf-8')
|
|
self.elementstack[-1][2].append(text)
|
|
|
|
def handle_data(self, text, escape=1):
|
|
# called for each block of plain text, i.e. outside of any tag and
|
|
# not containing any character or entity references
|
|
if not self.elementstack:
|
|
return
|
|
if escape and self.contentparams.get('type') == u'application/xhtml+xml':
|
|
text = _xmlescape(text)
|
|
self.elementstack[-1][2].append(text)
|
|
|
|
def handle_comment(self, text):
|
|
# called for each comment, e.g. <!-- 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
|
|
|
|
def mapContentType(self, contentType):
|
|
contentType = contentType.lower()
|
|
if contentType == 'text' or contentType == 'plain':
|
|
contentType = u'text/plain'
|
|
elif contentType == 'html':
|
|
contentType = u'text/html'
|
|
elif contentType == 'xhtml':
|
|
contentType = u'application/xhtml+xml'
|
|
return contentType
|
|
|
|
def trackNamespace(self, prefix, uri):
|
|
loweruri = uri.lower()
|
|
if not self.version:
|
|
if (prefix, loweruri) == (None, 'http://my.netscape.com/rdf/simple/0.9/'):
|
|
self.version = u'rss090'
|
|
elif loweruri == 'http://purl.org/rss/1.0/':
|
|
self.version = u'rss10'
|
|
elif loweruri == 'http://www.w3.org/2005/atom':
|
|
self.version = u'atom10'
|
|
if loweruri.find(u'backend.userland.com/rss') <> -1:
|
|
# match any backend.userland.com namespace
|
|
uri = u'http://backend.userland.com/rss'
|
|
loweruri = uri
|
|
if loweruri in self._matchnamespaces:
|
|
self.namespacemap[prefix] = self._matchnamespaces[loweruri]
|
|
self.namespacesInUse[self._matchnamespaces[loweruri]] = uri
|
|
else:
|
|
self.namespacesInUse[prefix or ''] = uri
|
|
|
|
def resolveURI(self, uri):
|
|
return _urljoin(self.baseuri or u'', uri)
|
|
|
|
def decodeEntities(self, element, data):
|
|
return data
|
|
|
|
def strattrs(self, attrs):
|
|
return ''.join([' %s="%s"' % (t[0],_xmlescape(t[1],{'"':'"'})) for t in attrs])
|
|
|
|
def push(self, element, expectingText):
|
|
self.elementstack.append([element, expectingText, []])
|
|
|
|
def pop(self, element, stripWhitespace=1):
|
|
if not self.elementstack:
|
|
return
|
|
if self.elementstack[-1][0] != element:
|
|
return
|
|
|
|
element, expectingText, pieces = self.elementstack.pop()
|
|
|
|
if self.version == u'atom10' and self.contentparams.get('type', u'text') == u'application/xhtml+xml':
|
|
# remove enclosing child element, but only if it is a <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]
|
|
|
|
# Ensure each piece is a str for Python 3
|
|
for (i, v) in enumerate(pieces):
|
|
if not isinstance(v, unicode):
|
|
pieces[i] = v.decode('utf-8')
|
|
|
|
output = u''.join(pieces)
|
|
if stripWhitespace:
|
|
output = output.strip()
|
|
if not expectingText:
|
|
return output
|
|
|
|
# decode base64 content
|
|
if base64 and self.contentparams.get('base64', 0):
|
|
try:
|
|
output = _base64decode(output)
|
|
except binascii.Error:
|
|
pass
|
|
except binascii.Incomplete:
|
|
pass
|
|
except TypeError:
|
|
# In Python 3, base64 takes and outputs bytes, not str
|
|
# This may not be the most correct way to accomplish this
|
|
output = _base64decode(output.encode('utf-8')).decode('utf-8')
|
|
|
|
# resolve relative URIs
|
|
if (element in self.can_be_relative_uri) and output:
|
|
output = self.resolveURI(output)
|
|
|
|
# decode entities within embedded markup
|
|
if not self.contentparams.get('base64', 0):
|
|
output = self.decodeEntities(element, output)
|
|
|
|
# some feed formats require consumers to guess
|
|
# whether the content is html or plain text
|
|
if not self.version.startswith(u'atom') and self.contentparams.get('type') == u'text/plain':
|
|
if self.lookslikehtml(output):
|
|
self.contentparams['type'] = u'text/html'
|
|
|
|
# remove temporary cruft from contentparams
|
|
try:
|
|
del self.contentparams['mode']
|
|
except KeyError:
|
|
pass
|
|
try:
|
|
del self.contentparams['base64']
|
|
except KeyError:
|
|
pass
|
|
|
|
is_htmlish = self.mapContentType(self.contentparams.get('type', u'text/html')) in self.html_types
|
|
# resolve relative URIs within embedded markup
|
|
if is_htmlish and RESOLVE_RELATIVE_URIS:
|
|
if element in self.can_contain_relative_uris:
|
|
output = _resolveRelativeURIs(output, self.baseuri, self.encoding, self.contentparams.get('type', u'text/html'))
|
|
|
|
# parse microformats
|
|
# (must do this before sanitizing because some microformats
|
|
# rely on elements that we sanitize)
|
|
if PARSE_MICROFORMATS and is_htmlish and element in ['content', 'description', 'summary']:
|
|
mfresults = _parseMicroformats(output, self.baseuri, self.encoding)
|
|
if mfresults:
|
|
for tag in mfresults.get('tags', []):
|
|
self._addTag(tag['term'], tag['scheme'], tag['label'])
|
|
for enclosure in mfresults.get('enclosures', []):
|
|
self._start_enclosure(enclosure)
|
|
for xfn in mfresults.get('xfn', []):
|
|
self._addXFN(xfn['relationships'], xfn['href'], xfn['name'])
|
|
vcard = mfresults.get('vcard')
|
|
if vcard:
|
|
self._getContext()['vcard'] = vcard
|
|
|
|
# sanitize embedded markup
|
|
if is_htmlish and SANITIZE_HTML:
|
|
if element in self.can_contain_dangerous_markup:
|
|
output = _sanitizeHTML(output, self.encoding, self.contentparams.get('type', u'text/html'))
|
|
|
|
if self.encoding and not isinstance(output, unicode):
|
|
output = output.decode(self.encoding, 'ignore')
|
|
|
|
# address common error where people take data that is already
|
|
# utf-8, presume that it is iso-8859-1, and re-encode it.
|
|
if self.encoding in (u'utf-8', u'utf-8_INVALID_PYTHON_3') and isinstance(output, unicode):
|
|
try:
|
|
output = output.encode('iso-8859-1').decode('utf-8')
|
|
except (UnicodeEncodeError, UnicodeDecodeError):
|
|
pass
|
|
|
|
# map win-1252 extensions to the proper code points
|
|
if isinstance(output, unicode):
|
|
output = output.translate(_cp1252)
|
|
|
|
# categories/tags/keywords/whatever are handled in _end_category
|
|
if element == 'category':
|
|
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 = re.sub("&([A-Za-z0-9_]+);", "&\g<1>", output)
|
|
self.entries[-1][element] = output
|
|
if output:
|
|
self.entries[-1]['links'][-1]['href'] = output
|
|
else:
|
|
if element == 'description':
|
|
element = 'summary'
|
|
old_value_depth = self.property_depth_map.setdefault(self.entries[-1], {}).get(element)
|
|
if old_value_depth is None or self.depth <= old_value_depth:
|
|
self.property_depth_map[self.entries[-1]][element] = self.depth
|
|
self.entries[-1][element] = output
|
|
if self.incontent:
|
|
contentparams = copy.deepcopy(self.contentparams)
|
|
contentparams['value'] = output
|
|
self.entries[-1][element + '_detail'] = contentparams
|
|
elif (self.infeed or self.insource):# and (not self.intextinput) and (not self.inimage):
|
|
context = self._getContext()
|
|
if element == 'description':
|
|
element = 'subtitle'
|
|
context[element] = output
|
|
if element == 'link':
|
|
# fix query variables; see above for the explanation
|
|
output = re.sub("&([A-Za-z0-9_]+);", "&\g<1>", output)
|
|
context[element] = output
|
|
context['links'][-1]['href'] = output
|
|
elif self.incontent:
|
|
contentparams = copy.deepcopy(self.contentparams)
|
|
contentparams['value'] = output
|
|
context[element + '_detail'] = contentparams
|
|
return output
|
|
|
|
def pushContent(self, tag, attrsD, defaultContentType, expectingText):
|
|
self.incontent += 1
|
|
if self.lang:
|
|
self.lang=self.lang.replace('_','-')
|
|
self.contentparams = FeedParserDict({
|
|
'type': self.mapContentType(attrsD.get('type', defaultContentType)),
|
|
'language': self.lang,
|
|
'base': self.baseuri})
|
|
self.contentparams['base64'] = self._isBase64(attrsD, self.contentparams)
|
|
self.push(tag, expectingText)
|
|
|
|
def popContent(self, tag):
|
|
value = self.pop(tag)
|
|
self.incontent -= 1
|
|
self.contentparams.clear()
|
|
return value
|
|
|
|
# a number of elements in a number of RSS variants are nominally plain
|
|
# text, but this is routinely ignored. This is an attempt to detect
|
|
# the most common cases. As false positives often result in silent
|
|
# data loss, this function errs on the conservative side.
|
|
@staticmethod
|
|
def lookslikehtml(s):
|
|
# must have a close tag or an entity reference to qualify
|
|
if not (re.search(r'</(\w+)>',s) or re.search("&#?\w+;",s)):
|
|
return
|
|
|
|
# all tags must be in a restricted subset of valid HTML tags
|
|
if filter(lambda t: t.lower() not in _HTMLSanitizer.acceptable_elements,
|
|
re.findall(r'</?(\w+)',s)):
|
|
return
|
|
|
|
# all entities must have been defined as valid HTML entities
|
|
if filter(lambda e: e not in entitydefs.keys(), re.findall(r'&(\w+);', s)):
|
|
return
|
|
|
|
return 1
|
|
|
|
def _mapToStandardPrefix(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 _getAttribute(self, attrsD, name):
|
|
return attrsD.get(self._mapToStandardPrefix(name))
|
|
|
|
def _isBase64(self, attrsD, contentparams):
|
|
if attrsD.get('mode', '') == 'base64':
|
|
return 1
|
|
if self.contentparams['type'].startswith(u'text/'):
|
|
return 0
|
|
if self.contentparams['type'].endswith(u'+xml'):
|
|
return 0
|
|
if self.contentparams['type'].endswith(u'/xml'):
|
|
return 0
|
|
return 1
|
|
|
|
def _itsAnHrefDamnIt(self, attrsD):
|
|
href = attrsD.get('url', attrsD.get('uri', attrsD.get('href', None)))
|
|
if href:
|
|
try:
|
|
del attrsD['url']
|
|
except KeyError:
|
|
pass
|
|
try:
|
|
del attrsD['uri']
|
|
except KeyError:
|
|
pass
|
|
attrsD['href'] = href
|
|
return attrsD
|
|
|
|
def _save(self, key, value, overwrite=False):
|
|
context = self._getContext()
|
|
if overwrite:
|
|
context[key] = value
|
|
else:
|
|
context.setdefault(key, value)
|
|
|
|
def _start_rss(self, attrsD):
|
|
versionmap = {'0.91': u'rss091u',
|
|
'0.92': u'rss092',
|
|
'0.93': u'rss093',
|
|
'0.94': u'rss094'}
|
|
#If we're here then this is an RSS feed.
|
|
#If we don't have a version or have a version that starts with something
|
|
#other than RSS then there's been a mistake. Correct it.
|
|
if not self.version or not self.version.startswith(u'rss'):
|
|
attr_version = attrsD.get('version', '')
|
|
version = versionmap.get(attr_version)
|
|
if version:
|
|
self.version = version
|
|
elif attr_version.startswith('2.'):
|
|
self.version = u'rss20'
|
|
else:
|
|
self.version = u'rss'
|
|
|
|
def _start_channel(self, attrsD):
|
|
self.infeed = 1
|
|
self._cdf_common(attrsD)
|
|
|
|
def _cdf_common(self, attrsD):
|
|
if 'lastmod' in attrsD:
|
|
self._start_modified({})
|
|
self.elementstack[-1][-1] = attrsD['lastmod']
|
|
self._end_modified()
|
|
if 'href' in attrsD:
|
|
self._start_link({})
|
|
self.elementstack[-1][-1] = attrsD['href']
|
|
self._end_link()
|
|
|
|
def _start_feed(self, attrsD):
|
|
self.infeed = 1
|
|
versionmap = {'0.1': u'atom01',
|
|
'0.2': u'atom02',
|
|
'0.3': u'atom03'}
|
|
if not self.version:
|
|
attr_version = attrsD.get('version')
|
|
version = versionmap.get(attr_version)
|
|
if version:
|
|
self.version = version
|
|
else:
|
|
self.version = u'atom'
|
|
|
|
def _end_channel(self):
|
|
self.infeed = 0
|
|
_end_feed = _end_channel
|
|
|
|
def _start_image(self, attrsD):
|
|
context = self._getContext()
|
|
if not self.inentry:
|
|
context.setdefault('image', FeedParserDict())
|
|
self.inimage = 1
|
|
self.title_depth = -1
|
|
self.push('image', 0)
|
|
|
|
def _end_image(self):
|
|
self.pop('image')
|
|
self.inimage = 0
|
|
|
|
def _start_textinput(self, attrsD):
|
|
context = self._getContext()
|
|
context.setdefault('textinput', FeedParserDict())
|
|
self.intextinput = 1
|
|
self.title_depth = -1
|
|
self.push('textinput', 0)
|
|
_start_textInput = _start_textinput
|
|
|
|
def _end_textinput(self):
|
|
self.pop('textinput')
|
|
self.intextinput = 0
|
|
_end_textInput = _end_textinput
|
|
|
|
def _start_author(self, attrsD):
|
|
self.inauthor = 1
|
|
self.push('author', 1)
|
|
# Append a new FeedParserDict when expecting an author
|
|
context = self._getContext()
|
|
context.setdefault('authors', [])
|
|
context['authors'].append(FeedParserDict())
|
|
_start_managingeditor = _start_author
|
|
_start_dc_author = _start_author
|
|
_start_dc_creator = _start_author
|
|
_start_itunes_author = _start_author
|
|
|
|
def _end_author(self):
|
|
self.pop('author')
|
|
self.inauthor = 0
|
|
self._sync_author_detail()
|
|
_end_managingeditor = _end_author
|
|
_end_dc_author = _end_author
|
|
_end_dc_creator = _end_author
|
|
_end_itunes_author = _end_author
|
|
|
|
def _start_itunes_owner(self, attrsD):
|
|
self.inpublisher = 1
|
|
self.push('publisher', 0)
|
|
|
|
def _end_itunes_owner(self):
|
|
self.pop('publisher')
|
|
self.inpublisher = 0
|
|
self._sync_author_detail('publisher')
|
|
|
|
def _start_contributor(self, attrsD):
|
|
self.incontributor = 1
|
|
context = self._getContext()
|
|
context.setdefault('contributors', [])
|
|
context['contributors'].append(FeedParserDict())
|
|
self.push('contributor', 0)
|
|
|
|
def _end_contributor(self):
|
|
self.pop('contributor')
|
|
self.incontributor = 0
|
|
|
|
def _start_dc_contributor(self, attrsD):
|
|
self.incontributor = 1
|
|
context = self._getContext()
|
|
context.setdefault('contributors', [])
|
|
context['contributors'].append(FeedParserDict())
|
|
self.push('name', 0)
|
|
|
|
def _end_dc_contributor(self):
|
|
self._end_name()
|
|
self.incontributor = 0
|
|
|
|
def _start_name(self, attrsD):
|
|
self.push('name', 0)
|
|
_start_itunes_name = _start_name
|
|
|
|
def _end_name(self):
|
|
value = self.pop('name')
|
|
if self.inpublisher:
|
|
self._save_author('name', value, 'publisher')
|
|
elif self.inauthor:
|
|
self._save_author('name', value)
|
|
elif self.incontributor:
|
|
self._save_contributor('name', value)
|
|
elif self.intextinput:
|
|
context = self._getContext()
|
|
context['name'] = value
|
|
_end_itunes_name = _end_name
|
|
|
|
def _start_width(self, attrsD):
|
|
self.push('width', 0)
|
|
|
|
def _end_width(self):
|
|
value = self.pop('width')
|
|
try:
|
|
value = int(value)
|
|
except ValueError:
|
|
value = 0
|
|
if self.inimage:
|
|
context = self._getContext()
|
|
context['width'] = value
|
|
|
|
def _start_height(self, attrsD):
|
|
self.push('height', 0)
|
|
|
|
def _end_height(self):
|
|
value = self.pop('height')
|
|
try:
|
|
value = int(value)
|
|
except ValueError:
|
|
value = 0
|
|
if self.inimage:
|
|
context = self._getContext()
|
|
context['height'] = value
|
|
|
|
def _start_url(self, attrsD):
|
|
self.push('href', 1)
|
|
_start_homepage = _start_url
|
|
_start_uri = _start_url
|
|
|
|
def _end_url(self):
|
|
value = self.pop('href')
|
|
if self.inauthor:
|
|
self._save_author('href', value)
|
|
elif self.incontributor:
|
|
self._save_contributor('href', value)
|
|
_end_homepage = _end_url
|
|
_end_uri = _end_url
|
|
|
|
def _start_email(self, attrsD):
|
|
self.push('email', 0)
|
|
_start_itunes_email = _start_email
|
|
|
|
def _end_email(self):
|
|
value = self.pop('email')
|
|
if self.inpublisher:
|
|
self._save_author('email', value, 'publisher')
|
|
elif self.inauthor:
|
|
self._save_author('email', value)
|
|
elif self.incontributor:
|
|
self._save_contributor('email', value)
|
|
_end_itunes_email = _end_email
|
|
|
|
def _getContext(self):
|
|
if self.insource:
|
|
context = self.sourcedata
|
|
elif self.inimage and 'image' in self.feeddata:
|
|
context = self.feeddata['image']
|
|
elif self.intextinput:
|
|
context = self.feeddata['textinput']
|
|
elif self.inentry:
|
|
context = self.entries[-1]
|
|
else:
|
|
context = self.feeddata
|
|
return context
|
|
|
|
def _save_author(self, key, value, prefix='author'):
|
|
context = self._getContext()
|
|
context.setdefault(prefix + '_detail', FeedParserDict())
|
|
context[prefix + '_detail'][key] = value
|
|
self._sync_author_detail()
|
|
context.setdefault('authors', [FeedParserDict()])
|
|
context['authors'][-1][key] = value
|
|
|
|
def _save_contributor(self, key, value):
|
|
context = self._getContext()
|
|
context.setdefault('contributors', [FeedParserDict()])
|
|
context['contributors'][-1][key] = value
|
|
|
|
def _sync_author_detail(self, key='author'):
|
|
context = self._getContext()
|
|
detail = context.get('%s_detail' % key)
|
|
if detail:
|
|
name = detail.get('name')
|
|
email = detail.get('email')
|
|
if name and email:
|
|
context[key] = u'%s (%s)' % (name, email)
|
|
elif name:
|
|
context[key] = name
|
|
elif email:
|
|
context[key] = email
|
|
else:
|
|
author, email = context.get(key), None
|
|
if not author:
|
|
return
|
|
emailmatch = re.search(ur'''(([a-zA-Z0-9\_\-\.\+]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?))(\?subject=\S+)?''', author)
|
|
if emailmatch:
|
|
email = emailmatch.group(0)
|
|
# probably a better way to do the following, but it passes all the tests
|
|
author = author.replace(email, u'')
|
|
author = author.replace(u'()', u'')
|
|
author = author.replace(u'<>', u'')
|
|
author = author.replace(u'<>', u'')
|
|
author = author.strip()
|
|
if author and (author[0] == u'('):
|
|
author = author[1:]
|
|
if author and (author[-1] == u')'):
|
|
author = author[:-1]
|
|
author = author.strip()
|
|
if author or email:
|
|
context.setdefault('%s_detail' % key, FeedParserDict())
|
|
if author:
|
|
context['%s_detail' % key]['name'] = author
|
|
if email:
|
|
context['%s_detail' % key]['email'] = email
|
|
|
|
def _start_subtitle(self, attrsD):
|
|
self.pushContent('subtitle', attrsD, u'text/plain', 1)
|
|
_start_tagline = _start_subtitle
|
|
_start_itunes_subtitle = _start_subtitle
|
|
|
|
def _end_subtitle(self):
|
|
self.popContent('subtitle')
|
|
_end_tagline = _end_subtitle
|
|
_end_itunes_subtitle = _end_subtitle
|
|
|
|
def _start_rights(self, attrsD):
|
|
self.pushContent('rights', attrsD, u'text/plain', 1)
|
|
_start_dc_rights = _start_rights
|
|
_start_copyright = _start_rights
|
|
|
|
def _end_rights(self):
|
|
self.popContent('rights')
|
|
_end_dc_rights = _end_rights
|
|
_end_copyright = _end_rights
|
|
|
|
def _start_item(self, attrsD):
|
|
self.entries.append(FeedParserDict())
|
|
self.push('item', 0)
|
|
self.inentry = 1
|
|
self.guidislink = 0
|
|
self.title_depth = -1
|
|
id = self._getAttribute(attrsD, 'rdf:about')
|
|
if id:
|
|
context = self._getContext()
|
|
context['id'] = id
|
|
self._cdf_common(attrsD)
|
|
_start_entry = _start_item
|
|
|
|
def _end_item(self):
|
|
self.pop('item')
|
|
self.inentry = 0
|
|
_end_entry = _end_item
|
|
|
|
def _start_dc_language(self, attrsD):
|
|
self.push('language', 1)
|
|
_start_language = _start_dc_language
|
|
|
|
def _end_dc_language(self):
|
|
self.lang = self.pop('language')
|
|
_end_language = _end_dc_language
|
|
|
|
def _start_dc_publisher(self, attrsD):
|
|
self.push('publisher', 1)
|
|
_start_webmaster = _start_dc_publisher
|
|
|
|
def _end_dc_publisher(self):
|
|
self.pop('publisher')
|
|
self._sync_author_detail('publisher')
|
|
_end_webmaster = _end_dc_publisher
|
|
|
|
def _start_published(self, attrsD):
|
|
self.push('published', 1)
|
|
_start_dcterms_issued = _start_published
|
|
_start_issued = _start_published
|
|
_start_pubdate = _start_published
|
|
|
|
def _end_published(self):
|
|
value = self.pop('published')
|
|
self._save('published_parsed', _parse_date(value), overwrite=True)
|
|
_end_dcterms_issued = _end_published
|
|
_end_issued = _end_published
|
|
_end_pubdate = _end_published
|
|
|
|
def _start_updated(self, attrsD):
|
|
self.push('updated', 1)
|
|
_start_modified = _start_updated
|
|
_start_dcterms_modified = _start_updated
|
|
_start_dc_date = _start_updated
|
|
_start_lastbuilddate = _start_updated
|
|
|
|
def _end_updated(self):
|
|
value = self.pop('updated')
|
|
parsed_value = _parse_date(value)
|
|
self._save('updated_parsed', parsed_value, overwrite=True)
|
|
_end_modified = _end_updated
|
|
_end_dcterms_modified = _end_updated
|
|
_end_dc_date = _end_updated
|
|
_end_lastbuilddate = _end_updated
|
|
|
|
def _start_created(self, attrsD):
|
|
self.push('created', 1)
|
|
_start_dcterms_created = _start_created
|
|
|
|
def _end_created(self):
|
|
value = self.pop('created')
|
|
self._save('created_parsed', _parse_date(value), overwrite=True)
|
|
_end_dcterms_created = _end_created
|
|
|
|
def _start_expirationdate(self, attrsD):
|
|
self.push('expired', 1)
|
|
|
|
def _end_expirationdate(self):
|
|
self._save('expired_parsed', _parse_date(self.pop('expired')), overwrite=True)
|
|
|
|
def _start_cc_license(self, attrsD):
|
|
context = self._getContext()
|
|
value = self._getAttribute(attrsD, 'rdf:resource')
|
|
attrsD = FeedParserDict()
|
|
attrsD['rel'] = u'license'
|
|
if value:
|
|
attrsD['href']=value
|
|
context.setdefault('links', []).append(attrsD)
|
|
|
|
def _start_creativecommons_license(self, attrsD):
|
|
self.push('license', 1)
|
|
_start_creativeCommons_license = _start_creativecommons_license
|
|
|
|
def _end_creativecommons_license(self):
|
|
value = self.pop('license')
|
|
context = self._getContext()
|
|
attrsD = FeedParserDict()
|
|
attrsD['rel'] = u'license'
|
|
if value:
|
|
attrsD['href'] = value
|
|
context.setdefault('links', []).append(attrsD)
|
|
del context['license']
|
|
_end_creativeCommons_license = _end_creativecommons_license
|
|
|
|
def _addXFN(self, relationships, href, name):
|
|
context = self._getContext()
|
|
xfn = context.setdefault('xfn', [])
|
|
value = FeedParserDict({'relationships': relationships, 'href': href, 'name': name})
|
|
if value not in xfn:
|
|
xfn.append(value)
|
|
|
|
def _addTag(self, term, scheme, label):
|
|
context = self._getContext()
|
|
tags = context.setdefault('tags', [])
|
|
if (not term) and (not scheme) and (not label):
|
|
return
|
|
value = FeedParserDict({'term': term, 'scheme': scheme, 'label': label})
|
|
if value not in tags:
|
|
tags.append(value)
|
|
|
|
def _start_category(self, attrsD):
|
|
term = attrsD.get('term')
|
|
scheme = attrsD.get('scheme', attrsD.get('domain'))
|
|
label = attrsD.get('label')
|
|
self._addTag(term, scheme, label)
|
|
self.push('category', 1)
|
|
_start_dc_subject = _start_category
|
|
_start_keywords = _start_category
|
|
|
|
def _start_media_category(self, attrsD):
|
|
attrsD.setdefault('scheme', u'http://search.yahoo.com/mrss/category_schema')
|
|
self._start_category(attrsD)
|
|
|
|
def _end_itunes_keywords(self):
|
|
for term in self.pop('itunes_keywords').split(','):
|
|
if term.strip():
|
|
self._addTag(term.strip(), u'http://www.itunes.com/', None)
|
|
|
|
def _start_itunes_category(self, attrsD):
|
|
self._addTag(attrsD.get('text'), u'http://www.itunes.com/', None)
|
|
self.push('category', 1)
|
|
|
|
def _end_category(self):
|
|
value = self.pop('category')
|
|
if not value:
|
|
return
|
|
context = self._getContext()
|
|
tags = context['tags']
|
|
if value and len(tags) and not tags[-1]['term']:
|
|
tags[-1]['term'] = value
|
|
else:
|
|
self._addTag(value, None, None)
|
|
_end_dc_subject = _end_category
|
|
_end_keywords = _end_category
|
|
_end_itunes_category = _end_category
|
|
_end_media_category = _end_category
|
|
|
|
def _start_cloud(self, attrsD):
|
|
self._getContext()['cloud'] = FeedParserDict(attrsD)
|
|
|
|
def _start_link(self, attrsD):
|
|
attrsD.setdefault('rel', u'alternate')
|
|
if attrsD['rel'] == u'self':
|
|
attrsD.setdefault('type', u'application/atom+xml')
|
|
else:
|
|
attrsD.setdefault('type', u'text/html')
|
|
context = self._getContext()
|
|
attrsD = self._itsAnHrefDamnIt(attrsD)
|
|
if 'href' in attrsD:
|
|
attrsD['href'] = self.resolveURI(attrsD['href'])
|
|
expectingText = self.infeed or self.inentry or self.insource
|
|
context.setdefault('links', [])
|
|
if not (self.inentry and self.inimage):
|
|
context['links'].append(FeedParserDict(attrsD))
|
|
if 'href' in attrsD:
|
|
expectingText = 0
|
|
if (attrsD.get('rel') == u'alternate') and (self.mapContentType(attrsD.get('type')) in self.html_types):
|
|
context['link'] = attrsD['href']
|
|
else:
|
|
self.push('link', expectingText)
|
|
|
|
def _end_link(self):
|
|
value = self.pop('link')
|
|
|
|
def _start_guid(self, attrsD):
|
|
self.guidislink = (attrsD.get('ispermalink', 'true') == 'true')
|
|
self.push('id', 1)
|
|
_start_id = _start_guid
|
|
|
|
def _end_guid(self):
|
|
value = self.pop('id')
|
|
self._save('guidislink', self.guidislink and 'link' not in self._getContext())
|
|
if self.guidislink:
|
|
# guid acts as link, but only if 'ispermalink' is not present or is 'true',
|
|
# and only if the item doesn't already have a link element
|
|
self._save('link', value)
|
|
_end_id = _end_guid
|
|
|
|
def _start_title(self, attrsD):
|
|
if self.svgOK:
|
|
return self.unknown_starttag('title', attrsD.items())
|
|
self.pushContent('title', attrsD, u'text/plain', self.infeed or self.inentry or self.insource)
|
|
_start_dc_title = _start_title
|
|
_start_media_title = _start_title
|
|
|
|
def _end_title(self):
|
|
if self.svgOK:
|
|
return
|
|
value = self.popContent('title')
|
|
if not value:
|
|
return
|
|
self.title_depth = self.depth
|
|
_end_dc_title = _end_title
|
|
|
|
def _end_media_title(self):
|
|
title_depth = self.title_depth
|
|
self._end_title()
|
|
self.title_depth = title_depth
|
|
|
|
def _start_description(self, attrsD):
|
|
context = self._getContext()
|
|
if 'summary' in context:
|
|
self._summaryKey = 'content'
|
|
self._start_content(attrsD)
|
|
else:
|
|
self.pushContent('description', attrsD, u'text/html', self.infeed or self.inentry or self.insource)
|
|
_start_dc_description = _start_description
|
|
|
|
def _start_abstract(self, attrsD):
|
|
self.pushContent('description', attrsD, u'text/plain', self.infeed or self.inentry or self.insource)
|
|
|
|
def _end_description(self):
|
|
if self._summaryKey == 'content':
|
|
self._end_content()
|
|
else:
|
|
value = self.popContent('description')
|
|
self._summaryKey = None
|
|
_end_abstract = _end_description
|
|
_end_dc_description = _end_description
|
|
|
|
def _start_info(self, attrsD):
|
|
self.pushContent('info', attrsD, u'text/plain', 1)
|
|
_start_feedburner_browserfriendly = _start_info
|
|
|
|
def _end_info(self):
|
|
self.popContent('info')
|
|
_end_feedburner_browserfriendly = _end_info
|
|
|
|
def _start_generator(self, attrsD):
|
|
if attrsD:
|
|
attrsD = self._itsAnHrefDamnIt(attrsD)
|
|
if 'href' in attrsD:
|
|
attrsD['href'] = self.resolveURI(attrsD['href'])
|
|
self._getContext()['generator_detail'] = FeedParserDict(attrsD)
|
|
self.push('generator', 1)
|
|
|
|
def _end_generator(self):
|
|
value = self.pop('generator')
|
|
context = self._getContext()
|
|
if 'generator_detail' in context:
|
|
context['generator_detail']['name'] = value
|
|
|
|
def _start_admin_generatoragent(self, attrsD):
|
|
self.push('generator', 1)
|
|
value = self._getAttribute(attrsD, 'rdf:resource')
|
|
if value:
|
|
self.elementstack[-1][2].append(value)
|
|
self.pop('generator')
|
|
self._getContext()['generator_detail'] = FeedParserDict({'href': value})
|
|
|
|
def _start_admin_errorreportsto(self, attrsD):
|
|
self.push('errorreportsto', 1)
|
|
value = self._getAttribute(attrsD, 'rdf:resource')
|
|
if value:
|
|
self.elementstack[-1][2].append(value)
|
|
self.pop('errorreportsto')
|
|
|
|
def _start_summary(self, attrsD):
|
|
context = self._getContext()
|
|
if 'summary' in context:
|
|
self._summaryKey = 'content'
|
|
self._start_content(attrsD)
|
|
else:
|
|
self._summaryKey = 'summary'
|
|
self.pushContent(self._summaryKey, attrsD, u'text/plain', 1)
|
|
_start_itunes_summary = _start_summary
|
|
|
|
def _end_summary(self):
|
|
if self._summaryKey == 'content':
|
|
self._end_content()
|
|
else:
|
|
self.popContent(self._summaryKey or 'summary')
|
|
self._summaryKey = None
|
|
_end_itunes_summary = _end_summary
|
|
|
|
def _start_enclosure(self, attrsD):
|
|
attrsD = self._itsAnHrefDamnIt(attrsD)
|
|
context = self._getContext()
|
|
attrsD['rel'] = u'enclosure'
|
|
context.setdefault('links', []).append(FeedParserDict(attrsD))
|
|
|
|
def _start_source(self, attrsD):
|
|
if 'url' in attrsD:
|
|
# This means that we're processing a source element from an RSS 2.0 feed
|
|
self.sourcedata['href'] = attrsD[u'url']
|
|
self.push('source', 1)
|
|
self.insource = 1
|
|
self.title_depth = -1
|
|
|
|
def _end_source(self):
|
|
self.insource = 0
|
|
value = self.pop('source')
|
|
if value:
|
|
self.sourcedata['title'] = value
|
|
self._getContext()['source'] = copy.deepcopy(self.sourcedata)
|
|
self.sourcedata.clear()
|
|
|
|
def _start_content(self, attrsD):
|
|
self.pushContent('content', attrsD, u'text/plain', 1)
|
|
src = attrsD.get('src')
|
|
if src:
|
|
self.contentparams['src'] = src
|
|
self.push('content', 1)
|
|
|
|
def _start_body(self, attrsD):
|
|
self.pushContent('content', attrsD, u'application/xhtml+xml', 1)
|
|
_start_xhtml_body = _start_body
|
|
|
|
def _start_content_encoded(self, attrsD):
|
|
self.pushContent('content', attrsD, u'text/html', 1)
|
|
_start_fullitem = _start_content_encoded
|
|
|
|
def _end_content(self):
|
|
copyToSummary = self.mapContentType(self.contentparams.get('type')) in ([u'text/plain'] + self.html_types)
|
|
value = self.popContent('content')
|
|
if copyToSummary:
|
|
self._save('summary', value)
|
|
|
|
_end_body = _end_content
|
|
_end_xhtml_body = _end_content
|
|
_end_content_encoded = _end_content
|
|
_end_fullitem = _end_content
|
|
|
|
def _start_itunes_image(self, attrsD):
|
|
self.push('itunes_image', 0)
|
|
if attrsD.get('href'):
|
|
self._getContext()['image'] = FeedParserDict({'href': attrsD.get('href')})
|
|
elif attrsD.get('url'):
|
|
self._getContext()['image'] = FeedParserDict({'href': attrsD.get('url')})
|
|
_start_itunes_link = _start_itunes_image
|
|
|
|
def _end_itunes_block(self):
|
|
value = self.pop('itunes_block', 0)
|
|
self._getContext()['itunes_block'] = (value == 'yes') and 1 or 0
|
|
|
|
def _end_itunes_explicit(self):
|
|
value = self.pop('itunes_explicit', 0)
|
|
# Convert 'yes' -> True, 'clean' to False, and any other value to None
|
|
# False and None both evaluate as False, so the difference can be ignored
|
|
# by applications that only need to know if the content is explicit.
|
|
self._getContext()['itunes_explicit'] = (None, False, True)[(value == 'yes' and 2) or value == 'clean' or 0]
|
|
|
|
def _start_media_content(self, attrsD):
|
|
context = self._getContext()
|
|
context.setdefault('media_content', [])
|
|
context['media_content'].append(attrsD)
|
|
|
|
def _start_media_thumbnail(self, attrsD):
|
|
context = self._getContext()
|
|
context.setdefault('media_thumbnail', [])
|
|
self.push('url', 1) # new
|
|
context['media_thumbnail'].append(attrsD)
|
|
|
|
def _end_media_thumbnail(self):
|
|
url = self.pop('url')
|
|
context = self._getContext()
|
|
if url != None and len(url.strip()) != 0:
|
|
if 'url' not in context['media_thumbnail'][-1]:
|
|
context['media_thumbnail'][-1]['url'] = url
|
|
|
|
def _start_media_player(self, attrsD):
|
|
self.push('media_player', 0)
|
|
self._getContext()['media_player'] = FeedParserDict(attrsD)
|
|
|
|
def _end_media_player(self):
|
|
value = self.pop('media_player')
|
|
context = self._getContext()
|
|
context['media_player']['content'] = value
|
|
|
|
def _start_newlocation(self, attrsD):
|
|
self.push('newlocation', 1)
|
|
|
|
def _end_newlocation(self):
|
|
url = self.pop('newlocation')
|
|
context = self._getContext()
|
|
# don't set newlocation if the context isn't right
|
|
if context is not self.feeddata:
|
|
return
|
|
context['newlocation'] = _makeSafeAbsoluteURI(self.baseuri, url.strip())
|
|
|
|
if _XML_AVAILABLE:
|
|
class _StrictFeedParser(_FeedParserMixin, xml.sax.handler.ContentHandler):
|
|
def __init__(self, baseuri, baselang, encoding):
|
|
xml.sax.handler.ContentHandler.__init__(self)
|
|
_FeedParserMixin.__init__(self, baseuri, baselang, encoding)
|
|
self.bozo = 0
|
|
self.exc = None
|
|
self.decls = {}
|
|
|
|
def startPrefixMapping(self, prefix, uri):
|
|
if not uri:
|
|
return
|
|
# Jython uses '' instead of None; standardize on None
|
|
prefix = prefix or None
|
|
self.trackNamespace(prefix, uri)
|
|
if prefix and uri == 'http://www.w3.org/1999/xlink':
|
|
self.decls['xmlns:' + prefix] = uri
|
|
|
|
def startElementNS(self, name, qname, attrs):
|
|
namespace, localname = name
|
|
lowernamespace = str(namespace or '').lower()
|
|
if lowernamespace.find(u'backend.userland.com/rss') <> -1:
|
|
# match any backend.userland.com namespace
|
|
namespace = u'http://backend.userland.com/rss'
|
|
lowernamespace = namespace
|
|
if qname and qname.find(':') > 0:
|
|
givenprefix = qname.split(':')[0]
|
|
else:
|
|
givenprefix = None
|
|
prefix = self._matchnamespaces.get(lowernamespace, givenprefix)
|
|
if givenprefix and (prefix == None or (prefix == '' and lowernamespace == '')) and givenprefix not in self.namespacesInUse:
|
|
raise UndeclaredNamespace, "'%s' is not associated with a namespace" % givenprefix
|
|
localname = str(localname).lower()
|
|
|
|
# qname implementation is horribly broken in Python 2.1 (it
|
|
# doesn't report any), and slightly broken in Python 2.2 (it
|
|
# doesn't report the xml: namespace). So we match up namespaces
|
|
# with a known list first, and then possibly override them with
|
|
# the qnames the SAX parser gives us (if indeed it gives us any
|
|
# at all). Thanks to MatejC for helping me test this and
|
|
# tirelessly telling me that it didn't work yet.
|
|
attrsD, self.decls = self.decls, {}
|
|
if localname=='math' and namespace=='http://www.w3.org/1998/Math/MathML':
|
|
attrsD['xmlns']=namespace
|
|
if localname=='svg' and namespace=='http://www.w3.org/2000/svg':
|
|
attrsD['xmlns']=namespace
|
|
|
|
if prefix:
|
|
localname = prefix.lower() + ':' + localname
|
|
elif namespace and not qname: #Expat
|
|
for name,value in self.namespacesInUse.items():
|
|
if name and value == namespace:
|
|
localname = name + ':' + localname
|
|
break
|
|
|
|
for (namespace, attrlocalname), attrvalue in attrs.items():
|
|
lowernamespace = (namespace or '').lower()
|
|
prefix = self._matchnamespaces.get(lowernamespace, '')
|
|
if prefix:
|
|
attrlocalname = prefix + ':' + attrlocalname
|
|
attrsD[str(attrlocalname).lower()] = attrvalue
|
|
for qname in attrs.getQNames():
|
|
attrsD[str(qname).lower()] = attrs.getValueByQName(qname)
|
|
self.unknown_starttag(localname, attrsD.items())
|
|
|
|
def characters(self, text):
|
|
self.handle_data(text)
|
|
|
|
def endElementNS(self, name, qname):
|
|
namespace, localname = name
|
|
lowernamespace = str(namespace or '').lower()
|
|
if qname and qname.find(':') > 0:
|
|
givenprefix = qname.split(':')[0]
|
|
else:
|
|
givenprefix = ''
|
|
prefix = self._matchnamespaces.get(lowernamespace, givenprefix)
|
|
if prefix:
|
|
localname = prefix + ':' + localname
|
|
elif namespace and not qname: #Expat
|
|
for name,value in self.namespacesInUse.items():
|
|
if name and value == namespace:
|
|
localname = name + ':' + localname
|
|
break
|
|
localname = str(localname).lower()
|
|
self.unknown_endtag(localname)
|
|
|
|
def error(self, exc):
|
|
self.bozo = 1
|
|
self.exc = exc
|
|
|
|
# drv_libxml2 calls warning() in some cases
|
|
warning = error
|
|
|
|
def fatalError(self, exc):
|
|
self.error(exc)
|
|
raise exc
|
|
|
|
class _BaseHTMLProcessor(sgmllib.SGMLParser):
|
|
special = re.compile('''[<>'"]''')
|
|
bare_ampersand = re.compile("&(?!#\d+;|#x[0-9a-fA-F]+;|\w+;)")
|
|
elements_no_end_tag = set([
|
|
'area', 'base', 'basefont', 'br', 'col', 'command', 'embed', 'frame',
|
|
'hr', 'img', 'input', 'isindex', 'keygen', 'link', 'meta', 'param',
|
|
'source', 'track', 'wbr'
|
|
])
|
|
|
|
def __init__(self, encoding, _type):
|
|
self.encoding = encoding
|
|
self._type = _type
|
|
sgmllib.SGMLParser.__init__(self)
|
|
|
|
def reset(self):
|
|
self.pieces = []
|
|
sgmllib.SGMLParser.reset(self)
|
|
|
|
def _shorttag_replace(self, match):
|
|
tag = match.group(1)
|
|
if tag in self.elements_no_end_tag:
|
|
return '<' + tag + ' />'
|
|
else:
|
|
return '<' + tag + '></' + tag + '>'
|
|
|
|
# By declaring these methods and overriding their compiled code
|
|
# with the code from sgmllib, the original code will execute in
|
|
# feedparser's scope instead of sgmllib's. This means that the
|
|
# `tagfind` and `charref` regular expressions will be found as
|
|
# they're declared above, not as they're declared in sgmllib.
|
|
def goahead(self, i):
|
|
pass
|
|
goahead.func_code = sgmllib.SGMLParser.goahead.func_code
|
|
|
|
def __parse_starttag(self, i):
|
|
pass
|
|
__parse_starttag.func_code = sgmllib.SGMLParser.parse_starttag.func_code
|
|
|
|
def parse_starttag(self,i):
|
|
j = self.__parse_starttag(i)
|
|
if self._type == 'application/xhtml+xml':
|
|
if j>2 and self.rawdata[j-2:j]=='/>':
|
|
self.unknown_endtag(self.lasttag)
|
|
return j
|
|
|
|
def feed(self, data):
|
|
data = re.compile(r'<!((?!DOCTYPE|--|\[))', re.IGNORECASE).sub(r'<!\1', data)
|
|
data = re.sub(r'<([^<>\s]+?)\s*/>', self._shorttag_replace, data)
|
|
data = data.replace(''', "'")
|
|
data = data.replace('"', '"')
|
|
try:
|
|
bytes
|
|
if bytes is str:
|
|
raise NameError
|
|
self.encoding = self.encoding + u'_INVALID_PYTHON_3'
|
|
except NameError:
|
|
if self.encoding and isinstance(data, unicode):
|
|
data = data.encode(self.encoding)
|
|
sgmllib.SGMLParser.feed(self, data)
|
|
sgmllib.SGMLParser.close(self)
|
|
|
|
def normalize_attrs(self, attrs):
|
|
if not attrs:
|
|
return attrs
|
|
# utility method to be called by descendants
|
|
attrs = dict([(k.lower(), v) for k, v in attrs]).items()
|
|
attrs = [(k, k in ('rel', 'type') and v.lower() or v) for k, v in attrs]
|
|
attrs.sort()
|
|
return attrs
|
|
|
|
def unknown_starttag(self, tag, attrs):
|
|
# called for each start tag
|
|
# attrs is a list of (attr, value) tuples
|
|
# e.g. for <pre class='screen'>, tag='pre', attrs=[('class', 'screen')]
|
|
uattrs = []
|
|
strattrs=''
|
|
if attrs:
|
|
for key, value in attrs:
|
|
value=value.replace('>','>').replace('<','<').replace('"','"')
|
|
value = self.bare_ampersand.sub("&", value)
|
|
# thanks to Kevin Marks for this breathtaking hack to deal with (valid) high-bit attribute values in UTF-8 feeds
|
|
if not isinstance(value, unicode):
|
|
value = value.decode(self.encoding, 'ignore')
|
|
try:
|
|
# Currently, in Python 3 the key is already a str, and cannot be decoded again
|
|
uattrs.append((unicode(key, self.encoding), value))
|
|
except TypeError:
|
|
uattrs.append((key, value))
|
|
strattrs = u''.join([u' %s="%s"' % (key, value) for key, value in uattrs])
|
|
if self.encoding:
|
|
try:
|
|
strattrs = strattrs.encode(self.encoding)
|
|
except (UnicodeEncodeError, LookupError):
|
|
pass
|
|
if tag in self.elements_no_end_tag:
|
|
self.pieces.append('<%s%s />' % (tag, strattrs))
|
|
else:
|
|
self.pieces.append('<%s%s>' % (tag, strattrs))
|
|
|
|
def unknown_endtag(self, tag):
|
|
# called for each end tag, e.g. for </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):
|
|
# called for each character reference, e.g. for ' ', ref will be '160'
|
|
# Reconstruct the original character reference.
|
|
ref = ref.lower()
|
|
if ref.startswith('x'):
|
|
value = int(ref[1:], 16)
|
|
else:
|
|
value = int(ref)
|
|
|
|
if value in _cp1252:
|
|
self.pieces.append('&#%s;' % hex(ord(_cp1252[value]))[1:])
|
|
else:
|
|
self.pieces.append('&#%s;' % ref)
|
|
|
|
def handle_entityref(self, ref):
|
|
# called for each entity reference, e.g. for '©', ref will be 'copy'
|
|
# Reconstruct the original entity reference.
|
|
if ref in name2codepoint or ref == 'apos':
|
|
self.pieces.append('&%s;' % ref)
|
|
else:
|
|
self.pieces.append('&%s' % ref)
|
|
|
|
def handle_data(self, text):
|
|
# called for each block of plain text, i.e. outside of any tag and
|
|
# not containing any character or entity references
|
|
# Store the original text verbatim.
|
|
self.pieces.append(text)
|
|
|
|
def handle_comment(self, text):
|
|
# called for each HTML comment, e.g. <!-- insert Javascript code here -->
|
|
# Reconstruct the original comment.
|
|
self.pieces.append('<!--%s-->' % text)
|
|
|
|
def handle_pi(self, text):
|
|
# called for each processing instruction, e.g. <?instruction>
|
|
# Reconstruct original processing instruction.
|
|
self.pieces.append('<?%s>' % text)
|
|
|
|
def handle_decl(self, text):
|
|
# 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):
|
|
rawdata = self.rawdata
|
|
n = len(rawdata)
|
|
if i == n:
|
|
return None, -1
|
|
m = self._new_declname_match(rawdata, i)
|
|
if m:
|
|
s = m.group()
|
|
name = s.strip()
|
|
if (i + len(s)) == n:
|
|
return None, -1 # end of buffer
|
|
return name.lower(), m.end()
|
|
else:
|
|
self.handle_data(rawdata)
|
|
# self.updatepos(declstartpos, i)
|
|
return None, -1
|
|
|
|
def convert_charref(self, name):
|
|
return '&#%s;' % name
|
|
|
|
def convert_entityref(self, name):
|
|
return '&%s;' % name
|
|
|
|
def output(self):
|
|
'''Return processed HTML as a single string'''
|
|
return ''.join([str(p) for p in self.pieces])
|
|
|
|
def parse_declaration(self, i):
|
|
try:
|
|
return sgmllib.SGMLParser.parse_declaration(self, i)
|
|
except sgmllib.SGMLParseError:
|
|
# escape the doctype declaration and continue parsing
|
|
self.handle_data('<')
|
|
return i+1
|
|
|
|
class _LooseFeedParser(_FeedParserMixin, _BaseHTMLProcessor):
|
|
def __init__(self, baseuri, baselang, encoding, entities):
|
|
sgmllib.SGMLParser.__init__(self)
|
|
_FeedParserMixin.__init__(self, baseuri, baselang, encoding)
|
|
_BaseHTMLProcessor.__init__(self, encoding, 'application/xhtml+xml')
|
|
self.entities=entities
|
|
|
|
def decodeEntities(self, element, data):
|
|
data = data.replace('<', '<')
|
|
data = data.replace('<', '<')
|
|
data = data.replace('<', '<')
|
|
data = data.replace('>', '>')
|
|
data = data.replace('>', '>')
|
|
data = data.replace('>', '>')
|
|
data = data.replace('&', '&')
|
|
data = data.replace('&', '&')
|
|
data = data.replace('"', '"')
|
|
data = data.replace('"', '"')
|
|
data = data.replace(''', ''')
|
|
data = data.replace(''', ''')
|
|
if not self.contentparams.get('type', u'xml').endswith(u'xml'):
|
|
data = data.replace('<', '<')
|
|
data = data.replace('>', '>')
|
|
data = data.replace('&', '&')
|
|
data = data.replace('"', '"')
|
|
data = data.replace(''', "'")
|
|
return data
|
|
|
|
def strattrs(self, attrs):
|
|
return ''.join([' %s="%s"' % (n,v.replace('"','"')) for n,v in attrs])
|
|
|
|
class _MicroformatsParser:
|
|
STRING = 1
|
|
DATE = 2
|
|
URI = 3
|
|
NODE = 4
|
|
EMAIL = 5
|
|
|
|
known_xfn_relationships = set(['contact', 'acquaintance', 'friend', 'met', 'co-worker', 'coworker', 'colleague', 'co-resident', 'coresident', 'neighbor', 'child', 'parent', 'sibling', 'brother', 'sister', 'spouse', 'wife', 'husband', 'kin', 'relative', 'muse', 'crush', 'date', 'sweetheart', 'me'])
|
|
known_binary_extensions = set(['zip','rar','exe','gz','tar','tgz','tbz2','bz2','z','7z','dmg','img','sit','sitx','hqx','deb','rpm','bz2','jar','rar','iso','bin','msi','mp2','mp3','ogg','ogm','mp4','m4v','m4a','avi','wma','wmv'])
|
|
|
|
def __init__(self, data, baseuri, encoding):
|
|
self.document = BeautifulSoup.BeautifulSoup(data)
|
|
self.baseuri = baseuri
|
|
self.encoding = encoding
|
|
if isinstance(data, unicode):
|
|
data = data.encode(encoding)
|
|
self.tags = []
|
|
self.enclosures = []
|
|
self.xfn = []
|
|
self.vcard = None
|
|
|
|
def vcardEscape(self, s):
|
|
if isinstance(s, basestring):
|
|
s = s.replace(',', '\\,').replace(';', '\\;').replace('\n', '\\n')
|
|
return s
|
|
|
|
def vcardFold(self, s):
|
|
s = re.sub(';+$', '', s)
|
|
sFolded = ''
|
|
iMax = 75
|
|
sPrefix = ''
|
|
while len(s) > iMax:
|
|
sFolded += sPrefix + s[:iMax] + '\n'
|
|
s = s[iMax:]
|
|
sPrefix = ' '
|
|
iMax = 74
|
|
sFolded += sPrefix + s
|
|
return sFolded
|
|
|
|
def normalize(self, s):
|
|
return re.sub(r'\s+', ' ', s).strip()
|
|
|
|
def unique(self, aList):
|
|
results = []
|
|
for element in aList:
|
|
if element not in results:
|
|
results.append(element)
|
|
return results
|
|
|
|
def toISO8601(self, dt):
|
|
return time.strftime('%Y-%m-%dT%H:%M:%SZ', dt)
|
|
|
|
def getPropertyValue(self, elmRoot, sProperty, iPropertyType=4, bAllowMultiple=0, bAutoEscape=0):
|
|
all = lambda x: 1
|
|
sProperty = sProperty.lower()
|
|
bFound = 0
|
|
bNormalize = 1
|
|
propertyMatch = {'class': re.compile(r'\b%s\b' % sProperty)}
|
|
if bAllowMultiple and (iPropertyType != self.NODE):
|
|
snapResults = []
|
|
containers = elmRoot(['ul', 'ol'], propertyMatch)
|
|
for container in containers:
|
|
snapResults.extend(container('li'))
|
|
bFound = (len(snapResults) != 0)
|
|
if not bFound:
|
|
snapResults = elmRoot(all, propertyMatch)
|
|
bFound = (len(snapResults) != 0)
|
|
if (not bFound) and (sProperty == 'value'):
|
|
snapResults = elmRoot('pre')
|
|
bFound = (len(snapResults) != 0)
|
|
bNormalize = not bFound
|
|
if not bFound:
|
|
snapResults = [elmRoot]
|
|
bFound = (len(snapResults) != 0)
|
|
arFilter = []
|
|
if sProperty == 'vcard':
|
|
snapFilter = elmRoot(all, propertyMatch)
|
|
for node in snapFilter:
|
|
if node.findParent(all, propertyMatch):
|
|
arFilter.append(node)
|
|
arResults = []
|
|
for node in snapResults:
|
|
if node not in arFilter:
|
|
arResults.append(node)
|
|
bFound = (len(arResults) != 0)
|
|
if not bFound:
|
|
if bAllowMultiple:
|
|
return []
|
|
elif iPropertyType == self.STRING:
|
|
return ''
|
|
elif iPropertyType == self.DATE:
|
|
return None
|
|
elif iPropertyType == self.URI:
|
|
return ''
|
|
elif iPropertyType == self.NODE:
|
|
return None
|
|
else:
|
|
return None
|
|
arValues = []
|
|
for elmResult in arResults:
|
|
sValue = None
|
|
if iPropertyType == self.NODE:
|
|
if bAllowMultiple:
|
|
arValues.append(elmResult)
|
|
continue
|
|
else:
|
|
return elmResult
|
|
sNodeName = elmResult.name.lower()
|
|
if (iPropertyType == self.EMAIL) and (sNodeName == 'a'):
|
|
sValue = (elmResult.get('href') or '').split('mailto:').pop().split('?')[0]
|
|
if sValue:
|
|
sValue = bNormalize and self.normalize(sValue) or sValue.strip()
|
|
if (not sValue) and (sNodeName == 'abbr'):
|
|
sValue = elmResult.get('title')
|
|
if sValue:
|
|
sValue = bNormalize and self.normalize(sValue) or sValue.strip()
|
|
if (not sValue) and (iPropertyType == self.URI):
|
|
if sNodeName == 'a':
|
|
sValue = elmResult.get('href')
|
|
elif sNodeName == 'img':
|
|
sValue = elmResult.get('src')
|
|
elif sNodeName == 'object':
|
|
sValue = elmResult.get('data')
|
|
if sValue:
|
|
sValue = bNormalize and self.normalize(sValue) or sValue.strip()
|
|
if (not sValue) and (sNodeName == 'img'):
|
|
sValue = elmResult.get('alt')
|
|
if sValue:
|
|
sValue = bNormalize and self.normalize(sValue) or sValue.strip()
|
|
if not sValue:
|
|
sValue = elmResult.renderContents()
|
|
sValue = re.sub(r'<\S[^>]*>', '', sValue)
|
|
sValue = sValue.replace('\r\n', '\n')
|
|
sValue = sValue.replace('\r', '\n')
|
|
if sValue:
|
|
sValue = bNormalize and self.normalize(sValue) or sValue.strip()
|
|
if not sValue:
|
|
continue
|
|
if iPropertyType == self.DATE:
|
|
sValue = _parse_date_iso8601(sValue)
|
|
if bAllowMultiple:
|
|
arValues.append(bAutoEscape and self.vcardEscape(sValue) or sValue)
|
|
else:
|
|
return bAutoEscape and self.vcardEscape(sValue) or sValue
|
|
return arValues
|
|
|
|
def findVCards(self, elmRoot, bAgentParsing=0):
|
|
sVCards = ''
|
|
|
|
if not bAgentParsing:
|
|
arCards = self.getPropertyValue(elmRoot, 'vcard', bAllowMultiple=1)
|
|
else:
|
|
arCards = [elmRoot]
|
|
|
|
for elmCard in arCards:
|
|
arLines = []
|
|
|
|
def processSingleString(sProperty):
|
|
sValue = self.getPropertyValue(elmCard, sProperty, self.STRING, bAutoEscape=1).decode(self.encoding)
|
|
if sValue:
|
|
arLines.append(self.vcardFold(sProperty.upper() + ':' + sValue))
|
|
return sValue or u''
|
|
|
|
def processSingleURI(sProperty):
|
|
sValue = self.getPropertyValue(elmCard, sProperty, self.URI)
|
|
if sValue:
|
|
sContentType = ''
|
|
sEncoding = ''
|
|
sValueKey = ''
|
|
if sValue.startswith('data:'):
|
|
sEncoding = ';ENCODING=b'
|
|
sContentType = sValue.split(';')[0].split('/').pop()
|
|
sValue = sValue.split(',', 1).pop()
|
|
else:
|
|
elmValue = self.getPropertyValue(elmCard, sProperty)
|
|
if elmValue:
|
|
if sProperty != 'url':
|
|
sValueKey = ';VALUE=uri'
|
|
sContentType = elmValue.get('type', '').strip().split('/').pop().strip()
|
|
sContentType = sContentType.upper()
|
|
if sContentType == 'OCTET-STREAM':
|
|
sContentType = ''
|
|
if sContentType:
|
|
sContentType = ';TYPE=' + sContentType.upper()
|
|
arLines.append(self.vcardFold(sProperty.upper() + sEncoding + sContentType + sValueKey + ':' + sValue))
|
|
|
|
def processTypeValue(sProperty, arDefaultType, arForceType=None):
|
|
arResults = self.getPropertyValue(elmCard, sProperty, bAllowMultiple=1)
|
|
for elmResult in arResults:
|
|
arType = self.getPropertyValue(elmResult, 'type', self.STRING, 1, 1)
|
|
if arForceType:
|
|
arType = self.unique(arForceType + arType)
|
|
if not arType:
|
|
arType = arDefaultType
|
|
sValue = self.getPropertyValue(elmResult, 'value', self.EMAIL, 0)
|
|
if sValue:
|
|
arLines.append(self.vcardFold(sProperty.upper() + ';TYPE=' + ','.join(arType) + ':' + sValue))
|
|
|
|
# AGENT
|
|
# must do this before all other properties because it is destructive
|
|
# (removes nested class="vcard" nodes so they don't interfere with
|
|
# this vcard's other properties)
|
|
arAgent = self.getPropertyValue(elmCard, 'agent', bAllowMultiple=1)
|
|
for elmAgent in arAgent:
|
|
if re.compile(r'\bvcard\b').search(elmAgent.get('class')):
|
|
sAgentValue = self.findVCards(elmAgent, 1) + '\n'
|
|
sAgentValue = sAgentValue.replace('\n', '\\n')
|
|
sAgentValue = sAgentValue.replace(';', '\\;')
|
|
if sAgentValue:
|
|
arLines.append(self.vcardFold('AGENT:' + sAgentValue))
|
|
# Completely remove the agent element from the parse tree
|
|
elmAgent.extract()
|
|
else:
|
|
sAgentValue = self.getPropertyValue(elmAgent, 'value', self.URI, bAutoEscape=1);
|
|
if sAgentValue:
|
|
arLines.append(self.vcardFold('AGENT;VALUE=uri:' + sAgentValue))
|
|
|
|
# FN (full name)
|
|
sFN = processSingleString('fn')
|
|
|
|
# N (name)
|
|
elmName = self.getPropertyValue(elmCard, 'n')
|
|
if elmName:
|
|
sFamilyName = self.getPropertyValue(elmName, 'family-name', self.STRING, bAutoEscape=1)
|
|
sGivenName = self.getPropertyValue(elmName, 'given-name', self.STRING, bAutoEscape=1)
|
|
arAdditionalNames = self.getPropertyValue(elmName, 'additional-name', self.STRING, 1, 1) + self.getPropertyValue(elmName, 'additional-names', self.STRING, 1, 1)
|
|
arHonorificPrefixes = self.getPropertyValue(elmName, 'honorific-prefix', self.STRING, 1, 1) + self.getPropertyValue(elmName, 'honorific-prefixes', self.STRING, 1, 1)
|
|
arHonorificSuffixes = self.getPropertyValue(elmName, 'honorific-suffix', self.STRING, 1, 1) + self.getPropertyValue(elmName, 'honorific-suffixes', self.STRING, 1, 1)
|
|
arLines.append(self.vcardFold('N:' + sFamilyName + ';' +
|
|
sGivenName + ';' +
|
|
','.join(arAdditionalNames) + ';' +
|
|