/yarss2/lib/feedparser/feedparser.py
Python | 4010 lines | 3673 code | 141 blank | 196 comment | 258 complexity | 6e5dbc23c3d496df9f6ad1020a2ba983 MD5 | raw file
Possible License(s): GPL-3.0, MIT, MPL-2.0, Apache-2.0, BSD-3-Clause
- """Universal feed parser
- Handles RSS 0.9x, RSS 1.0, RSS 2.0, CDF, Atom 0.3, and Atom 1.0 feeds
- Visit https://code.google.com/p/feedparser/ for the latest version
- Visit http://packages.python.org/feedparser/ for the latest documentation
- Required: Python 2.4 or later
- Recommended: iconv_codec <http://cjkpython.i18n.org/>
- """
- __version__ = "5.2.0"
- __license__ = """
- Copyright 2010-2015 Kurt McKee <contactme@kurtmckee.org>
- Copyright 2002-2008 Mark Pilgrim
- All rights reserved.
- Redistribution and use in source and binary forms, with or without modification,
- are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright notice,
- this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright notice,
- this list of conditions and the following disclaimer in the documentation
- and/or other materials provided with the distribution.
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS'
- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- POSSIBILITY OF SUCH DAMAGE."""
- __author__ = "Mark Pilgrim <http://diveintomark.org/>"
- __contributors__ = ["Jason Diamond <http://injektilo.org/>",
- "John Beimler <http://john.beimler.org/>",
- "Fazal Majid <http://www.majid.info/mylos/weblog/>",
- "Aaron Swartz <http://aaronsw.com/>",
- "Kevin Marks <http://epeus.blogspot.com/>",
- "Sam Ruby <http://intertwingly.net/>",
- "Ade Oshineye <http://blog.oshineye.com/>",
- "Martin Pool <http://sourcefrog.net/>",
- "Kurt McKee <http://kurtmckee.org/>",
- "Bernd Schlapsi <https://github.com/brot>",]
- # HTTP "User-Agent" header to send to servers when downloading feeds.
- # If you are embedding feedparser in a larger application, you should
- # change this to your application name and URL.
- USER_AGENT = "UniversalFeedParser/%s +https://code.google.com/p/feedparser/" % __version__
- # HTTP "Accept" header to send to servers when downloading feeds. If you don't
- # want to send an Accept header, set this to None.
- ACCEPT_HEADER = "application/atom+xml,application/rdf+xml,application/rss+xml,application/x-netcdf,application/xml;q=0.9,text/xml;q=0.2,*/*;q=0.1"
- # List of preferred XML parsers, by SAX driver name. These will be tried first,
- # but if they're not installed, Python will keep searching through its own list
- # of pre-installed parsers until it finds one that supports everything we need.
- PREFERRED_XML_PARSERS = ["drv_libxml2"]
- # If you want feedparser to automatically resolve all relative URIs, set this
- # to 1.
- RESOLVE_RELATIVE_URIS = 1
- # If you want feedparser to automatically sanitize all potentially unsafe
- # HTML content, set this to 1.
- SANITIZE_HTML = 1
- # ---------- Python 3 modules (make it work if possible) ----------
- try:
- import rfc822
- except ImportError:
- from email import _parseaddr as rfc822
- try:
- # Python 3.1 introduces bytes.maketrans and simultaneously
- # deprecates string.maketrans; use bytes.maketrans if possible
- _maketrans = bytes.maketrans
- except (NameError, AttributeError):
- import string
- _maketrans = string.maketrans
- # base64 support for Atom feeds that contain embedded binary data
- try:
- import base64, binascii
- except ImportError:
- base64 = binascii = None
- else:
- # Python 3.1 deprecates decodestring in favor of decodebytes
- _base64decode = getattr(base64, 'decodebytes', base64.decodestring)
- # _s2bytes: convert a UTF-8 str to bytes if the interpreter is Python 3
- # _l2bytes: convert a list of ints to bytes if the interpreter is Python 3
- try:
- if bytes is str:
- # In Python 2.5 and below, bytes doesn't exist (NameError)
- # In Python 2.6 and above, bytes and str are the same type
- raise NameError
- except NameError:
- # Python 2
- def _s2bytes(s):
- return s
- def _l2bytes(l):
- return ''.join(map(chr, l))
- else:
- # Python 3
- def _s2bytes(s):
- return bytes(s, 'utf8')
- def _l2bytes(l):
- return bytes(l)
- # If you want feedparser to allow all URL schemes, set this to ()
- # List culled from Python's urlparse documentation at:
- # http://docs.python.org/library/urlparse.html
- # as well as from "URI scheme" at Wikipedia:
- # https://secure.wikimedia.org/wikipedia/en/wiki/URI_scheme
- # Many more will likely need to be added!
- ACCEPTABLE_URI_SCHEMES = (
- 'file', 'ftp', 'gopher', 'h323', 'hdl', 'http', 'https', 'imap', 'magnet',
- 'mailto', 'mms', 'news', 'nntp', 'prospero', 'rsync', 'rtsp', 'rtspu',
- 'sftp', 'shttp', 'sip', 'sips', 'snews', 'svn', 'svn+ssh', 'telnet',
- 'wais',
- # Additional common-but-unofficial schemes
- 'aim', 'callto', 'cvs', 'facetime', 'feed', 'git', 'gtalk', 'irc', 'ircs',
- 'irc6', 'itms', 'mms', 'msnim', 'skype', 'ssh', 'smb', 'svn', 'ymsg',
- )
- #ACCEPTABLE_URI_SCHEMES = ()
- # ---------- required modules (should come with any Python distribution) ----------
- import cgi
- import codecs
- import copy
- import datetime
- import itertools
- import re
- import struct
- import time
- import types
- import urllib
- import urllib2
- import urlparse
- import warnings
- from htmlentitydefs import name2codepoint, codepoint2name, entitydefs
- try:
- from io import BytesIO as _StringIO
- except ImportError:
- try:
- from cStringIO import StringIO as _StringIO
- except ImportError:
- from StringIO import StringIO as _StringIO
- # ---------- optional modules (feedparser will work without these, but with reduced functionality) ----------
- # gzip is included with most Python distributions, but may not be available if you compiled your own
- try:
- import gzip
- except ImportError:
- gzip = None
- try:
- import zlib
- except ImportError:
- zlib = None
- # If a real XML parser is available, feedparser will attempt to use it. feedparser has
- # been tested with the built-in SAX parser and libxml2. On platforms where the
- # Python distribution does not come with an XML parser (such as Mac OS X 10.2 and some
- # versions of FreeBSD), feedparser will quietly fall back on regex-based parsing.
- try:
- import xml.sax
- from xml.sax.saxutils import escape as _xmlescape
- except ImportError:
- _XML_AVAILABLE = 0
- def _xmlescape(data,entities={}):
- data = data.replace('&', '&')
- data = data.replace('>', '>')
- data = data.replace('<', '<')
- for char, entity in entities:
- data = data.replace(char, entity)
- return data
- else:
- try:
- xml.sax.make_parser(PREFERRED_XML_PARSERS) # test for valid parsers
- except xml.sax.SAXReaderNotAvailable:
- _XML_AVAILABLE = 0
- else:
- _XML_AVAILABLE = 1
- # sgmllib is not available by default in Python 3; if the end user doesn't have
- # it available then we'll lose illformed XML parsing and content santizing
- try:
- import sgmllib
- except ImportError:
- # This is probably Python 3, which doesn't include sgmllib anymore
- _SGML_AVAILABLE = 0
- # Mock sgmllib enough to allow subclassing later on
- class sgmllib(object):
- class SGMLParser(object):
- def goahead(self, i):
- pass
- def parse_starttag(self, i):
- pass
- else:
- _SGML_AVAILABLE = 1
- # sgmllib defines a number of module-level regular expressions that are
- # insufficient for the XML parsing feedparser needs. Rather than modify
- # the variables directly in sgmllib, they're defined here using the same
- # names, and the compiled code objects of several sgmllib.SGMLParser
- # methods are copied into _BaseHTMLProcessor so that they execute in
- # feedparser's scope instead of sgmllib's scope.
- charref = re.compile('&#(\d+|[xX][0-9a-fA-F]+);')
- tagfind = re.compile('[a-zA-Z][-_.:a-zA-Z0-9]*')
- attrfind = re.compile(
- r'\s*([a-zA-Z_][-:.a-zA-Z_0-9]*)[$]?(\s*=\s*'
- r'(\'[^\']*\'|"[^"]*"|[][\-a-zA-Z0-9./,:;+*%?!&$\(\)_#=~\'"@]*))?'
- )
- # Unfortunately, these must be copied over to prevent NameError exceptions
- entityref = sgmllib.entityref
- incomplete = sgmllib.incomplete
- interesting = sgmllib.interesting
- shorttag = sgmllib.shorttag
- shorttagopen = sgmllib.shorttagopen
- starttagopen = sgmllib.starttagopen
- class _EndBracketRegEx:
- def __init__(self):
- # Overriding the built-in sgmllib.endbracket regex allows the
- # parser to find angle brackets embedded in element attributes.
- self.endbracket = re.compile('''([^'"<>]|"[^"]*"(?=>|/|\s|\w+=)|'[^']*'(?=>|/|\s|\w+=))*(?=[<>])|.*?(?=[<>])''')
- def search(self, target, index=0):
- match = self.endbracket.match(target, index)
- if match is not None:
- # Returning a new object in the calling thread's context
- # resolves a thread-safety.
- return EndBracketMatch(match)
- return None
- class EndBracketMatch:
- def __init__(self, match):
- self.match = match
- def start(self, n):
- return self.match.end(n)
- endbracket = _EndBracketRegEx()
- # iconv_codec provides support for more character encodings.
- # It's available from http://cjkpython.i18n.org/
- try:
- import iconv_codec
- except ImportError:
- pass
- # chardet library auto-detects character encodings
- # Download from http://chardet.feedparser.org/
- try:
- import chardet
- except ImportError:
- chardet = None
- # ---------- don't touch these ----------
- class ThingsNobodyCaresAboutButMe(Exception): pass
- class CharacterEncodingOverride(ThingsNobodyCaresAboutButMe): pass
- class CharacterEncodingUnknown(ThingsNobodyCaresAboutButMe): pass
- class NonXMLContentType(ThingsNobodyCaresAboutButMe): pass
- class UndeclaredNamespace(Exception): pass
- SUPPORTED_VERSIONS = {'': u'unknown',
- 'rss090': u'RSS 0.90',
- 'rss091n': u'RSS 0.91 (Netscape)',
- 'rss091u': u'RSS 0.91 (Userland)',
- 'rss092': u'RSS 0.92',
- 'rss093': u'RSS 0.93',
- 'rss094': u'RSS 0.94',
- 'rss20': u'RSS 2.0',
- 'rss10': u'RSS 1.0',
- 'rss': u'RSS (unknown version)',
- 'atom01': u'Atom 0.1',
- 'atom02': u'Atom 0.2',
- 'atom03': u'Atom 0.3',
- 'atom10': u'Atom 1.0',
- 'atom': u'Atom (unknown version)',
- 'cdf': u'CDF',
- }
- class FeedParserDict(dict):
- keymap = {'channel': 'feed',
- 'items': 'entries',
- 'guid': 'id',
- 'date': 'updated',
- 'date_parsed': 'updated_parsed',
- 'description': ['summary', 'subtitle'],
- 'description_detail': ['summary_detail', 'subtitle_detail'],
- 'url': ['href'],
- 'modified': 'updated',
- 'modified_parsed': 'updated_parsed',
- 'issued': 'published',
- 'issued_parsed': 'published_parsed',
- 'copyright': 'rights',
- 'copyright_detail': 'rights_detail',
- 'tagline': 'subtitle',
- 'tagline_detail': 'subtitle_detail'}
- def __getitem__(self, key):
- '''
- :return: A :class:`FeedParserDict`.
- '''
- if key == 'category':
- try:
- return dict.__getitem__(self, 'tags')[0]['term']
- except IndexError:
- raise KeyError, "object doesn't have key 'category'"
- elif key == 'enclosures':
- norel = lambda link: FeedParserDict([(name,value) for (name,value) in link.items() if name!='rel'])
- return [norel(link) for link in dict.__getitem__(self, 'links') if link['rel']==u'enclosure']
- elif key == 'license':
- for link in dict.__getitem__(self, 'links'):
- if link['rel']==u'license' and 'href' in link:
- return link['href']
- elif key == 'updated':
- # Temporarily help developers out by keeping the old
- # broken behavior that was reported in issue 310.
- # This fix was proposed in issue 328.
- if not dict.__contains__(self, 'updated') and \
- dict.__contains__(self, 'published'):
- warnings.warn("To avoid breaking existing software while "
- "fixing issue 310, a temporary mapping has been created "
- "from `updated` to `published` if `updated` doesn't "
- "exist. This fallback will be removed in a future version "
- "of feedparser.", DeprecationWarning)
- return dict.__getitem__(self, 'published')
- return dict.__getitem__(self, 'updated')
- elif key == 'updated_parsed':
- if not dict.__contains__(self, 'updated_parsed') and \
- dict.__contains__(self, 'published_parsed'):
- warnings.warn("To avoid breaking existing software while "
- "fixing issue 310, a temporary mapping has been created "
- "from `updated_parsed` to `published_parsed` if "
- "`updated_parsed` doesn't exist. This fallback will be "
- "removed in a future version of feedparser.",
- DeprecationWarning)
- return dict.__getitem__(self, 'published_parsed')
- return dict.__getitem__(self, 'updated_parsed')
- else:
- realkey = self.keymap.get(key, key)
- if isinstance(realkey, list):
- for k in realkey:
- if dict.__contains__(self, k):
- return dict.__getitem__(self, k)
- elif dict.__contains__(self, realkey):
- return dict.__getitem__(self, realkey)
- return dict.__getitem__(self, key)
- def __contains__(self, key):
- if key in ('updated', 'updated_parsed'):
- # Temporarily help developers out by keeping the old
- # broken behavior that was reported in issue 310.
- # This fix was proposed in issue 328.
- return dict.__contains__(self, key)
- try:
- self.__getitem__(key)
- except KeyError:
- return False
- else:
- return True
- has_key = __contains__
- def get(self, key, default=None):
- '''
- :return: A :class:`FeedParserDict`.
- '''
- try:
- return self.__getitem__(key)
- except KeyError:
- return default
- def __setitem__(self, key, value):
- key = self.keymap.get(key, key)
- if isinstance(key, list):
- key = key[0]
- return dict.__setitem__(self, key, value)
- def setdefault(self, key, value):
- if key not in self:
- self[key] = value
- return value
- return self[key]
- def __getattr__(self, key):
- # __getattribute__() is called first; this will be called
- # only if an attribute was not already found
- try:
- return self.__getitem__(key)
- except KeyError:
- raise AttributeError, "object has no attribute '%s'" % key
- def __hash__(self):
- return id(self)
- _cp1252 = {
- 128: unichr(8364), # euro sign
- 130: unichr(8218), # single low-9 quotation mark
- 131: unichr( 402), # latin small letter f with hook
- 132: unichr(8222), # double low-9 quotation mark
- 133: unichr(8230), # horizontal ellipsis
- 134: unichr(8224), # dagger
- 135: unichr(8225), # double dagger
- 136: unichr( 710), # modifier letter circumflex accent
- 137: unichr(8240), # per mille sign
- 138: unichr( 352), # latin capital letter s with caron
- 139: unichr(8249), # single left-pointing angle quotation mark
- 140: unichr( 338), # latin capital ligature oe
- 142: unichr( 381), # latin capital letter z with caron
- 145: unichr(8216), # left single quotation mark
- 146: unichr(8217), # right single quotation mark
- 147: unichr(8220), # left double quotation mark
- 148: unichr(8221), # right double quotation mark
- 149: unichr(8226), # bullet
- 150: unichr(8211), # en dash
- 151: unichr(8212), # em dash
- 152: unichr( 732), # small tilde
- 153: unichr(8482), # trade mark sign
- 154: unichr( 353), # latin small letter s with caron
- 155: unichr(8250), # single right-pointing angle quotation mark
- 156: unichr( 339), # latin small ligature oe
- 158: unichr( 382), # latin small letter z with caron
- 159: unichr( 376), # latin capital letter y with diaeresis
- }
- _urifixer = re.compile('^([A-Za-z][A-Za-z0-9+-.]*://)(/*)(.*?)')
- def _urljoin(base, uri):
- uri = _urifixer.sub(r'\1\3', uri)
- if not isinstance(uri, unicode):
- uri = uri.decode('utf-8', 'ignore')
- try:
- uri = urlparse.urljoin(base, uri)
- except ValueError:
- uri = u''
- if not isinstance(uri, unicode):
- return uri.decode('utf-8', 'ignore')
- return uri
- class _FeedParserMixin:
- namespaces = {
- '': '',
- 'http://backend.userland.com/rss': '',
- 'http://blogs.law.harvard.edu/tech/rss': '',
- 'http://purl.org/rss/1.0/': '',
- 'http://my.netscape.com/rdf/simple/0.9/': '',
- 'http://example.com/newformat#': '',
- 'http://example.com/necho': '',
- 'http://purl.org/echo/': '',
- 'uri/of/echo/namespace#': '',
- 'http://purl.org/pie/': '',
- 'http://purl.org/atom/ns#': '',
- 'http://www.w3.org/2005/Atom': '',
- 'http://purl.org/rss/1.0/modules/rss091#': '',
- 'http://webns.net/mvcb/': 'admin',
- 'http://purl.org/rss/1.0/modules/aggregation/': 'ag',
- 'http://purl.org/rss/1.0/modules/annotate/': 'annotate',
- 'http://media.tangent.org/rss/1.0/': 'audio',
- 'http://backend.userland.com/blogChannelModule': 'blogChannel',
- 'http://web.resource.org/cc/': 'cc',
- 'http://backend.userland.com/creativeCommonsRssModule': 'creativeCommons',
- 'http://purl.org/rss/1.0/modules/company': 'co',
- 'http://purl.org/rss/1.0/modules/content/': 'content',
- 'http://my.theinfo.org/changed/1.0/rss/': 'cp',
- 'http://purl.org/dc/elements/1.1/': 'dc',
- 'http://purl.org/dc/terms/': 'dcterms',
- 'http://purl.org/rss/1.0/modules/email/': 'email',
- 'http://purl.org/rss/1.0/modules/event/': 'ev',
- 'http://rssnamespace.org/feedburner/ext/1.0': 'feedburner',
- 'http://freshmeat.net/rss/fm/': 'fm',
- 'http://xmlns.com/foaf/0.1/': 'foaf',
- 'http://www.w3.org/2003/01/geo/wgs84_pos#': 'geo',
- 'http://www.georss.org/georss': 'georss',
- 'http://www.opengis.net/gml': 'gml',
- 'http://postneo.com/icbm/': 'icbm',
- 'http://purl.org/rss/1.0/modules/image/': 'image',
- 'http://www.itunes.com/DTDs/PodCast-1.0.dtd': 'itunes',
- 'http://example.com/DTDs/PodCast-1.0.dtd': 'itunes',
- 'http://purl.org/rss/1.0/modules/link/': 'l',
- 'http://search.yahoo.com/mrss': 'media',
- # Version 1.1.2 of the Media RSS spec added the trailing slash on the namespace
- 'http://search.yahoo.com/mrss/': 'media',
- 'http://madskills.com/public/xml/rss/module/pingback/': 'pingback',
- 'http://prismstandard.org/namespaces/1.2/basic/': 'prism',
- 'http://www.w3.org/1999/02/22-rdf-syntax-ns#': 'rdf',
- 'http://www.w3.org/2000/01/rdf-schema#': 'rdfs',
- 'http://purl.org/rss/1.0/modules/reference/': 'ref',
- 'http://purl.org/rss/1.0/modules/richequiv/': 'reqv',
- 'http://purl.org/rss/1.0/modules/search/': 'search',
- 'http://purl.org/rss/1.0/modules/slash/': 'slash',
- 'http://schemas.xmlsoap.org/soap/envelope/': 'soap',
- 'http://purl.org/rss/1.0/modules/servicestatus/': 'ss',
- 'http://hacks.benhammersley.com/rss/streaming/': 'str',
- 'http://purl.org/rss/1.0/modules/subscription/': 'sub',
- 'http://purl.org/rss/1.0/modules/syndication/': 'sy',
- 'http://schemas.pocketsoap.com/rss/myDescModule/': 'szf',
- 'http://purl.org/rss/1.0/modules/taxonomy/': 'taxo',
- 'http://purl.org/rss/1.0/modules/threading/': 'thr',
- 'http://purl.org/rss/1.0/modules/textinput/': 'ti',
- 'http://madskills.com/public/xml/rss/module/trackback/': 'trackback',
- 'http://wellformedweb.org/commentAPI/': 'wfw',
- 'http://purl.org/rss/1.0/modules/wiki/': 'wiki',
- 'http://www.w3.org/1999/xhtml': 'xhtml',
- 'http://www.w3.org/1999/xlink': 'xlink',
- 'http://www.w3.org/XML/1998/namespace': 'xml',
- 'http://podlove.org/simple-chapters': 'psc',
- }
- _matchnamespaces = {}
- can_be_relative_uri = set(['link', 'id', 'wfw_comment', 'wfw_commentrss', 'docs', 'url', 'href', 'comments', 'icon', 'logo'])
- can_contain_relative_uris = set(['content', 'title', 'summary', 'info', 'tagline', 'subtitle', 'copyright', 'rights', 'description'])
- can_contain_dangerous_markup = set(['content', 'title', 'summary', 'info', 'tagline', 'subtitle', 'copyright', 'rights', 'description'])
- html_types = [u'text/html', u'application/xhtml+xml']
- def __init__(self, baseuri=None, baselang=None, encoding=u'utf-8'):
- if not self._matchnamespaces:
- for k, v in self.namespaces.items():
- self._matchnamespaces[k.lower()] = v
- self.feeddata = FeedParserDict() # feed-level data
- self.encoding = encoding # character encoding
- self.entries = [] # list of entry-level data
- self.version = u'' # feed type/version, see SUPPORTED_VERSIONS
- self.namespacesInUse = {} # dictionary of namespaces defined by the feed
- # the following are used internally to track state;
- # this is really out of control and should be refactored
- self.infeed = 0
- self.inentry = 0
- self.incontent = 0
- self.intextinput = 0
- self.inimage = 0
- self.inauthor = 0
- self.incontributor = 0
- self.inpublisher = 0
- self.insource = 0
- # georss
- self.ingeometry = 0
- self.sourcedata = FeedParserDict()
- self.contentparams = FeedParserDict()
- self._summaryKey = None
- self.namespacemap = {}
- self.elementstack = []
- self.basestack = []
- self.langstack = []
- self.baseuri = baseuri or u''
- self.lang = baselang or None
- self.svgOK = 0
- self.title_depth = -1
- self.depth = 0
- # psc_chapters_flag prevents multiple psc_chapters from being
- # captured in a single entry or item. The transition states are
- # None -> True -> False. psc_chapter elements will only be
- # captured while it is True.
- self.psc_chapters_flag = None
- if baselang:
- self.feeddata['language'] = baselang.replace('_','-')
- # A map of the following form:
- # {
- # object_that_value_is_set_on: {
- # property_name: depth_of_node_property_was_extracted_from,
- # other_property: depth_of_node_property_was_extracted_from,
- # },
- # }
- self.property_depth_map = {}
- def _normalize_attributes(self, kv):
- k = kv[0].lower()
- v = k in ('rel', 'type') and kv[1].lower() or kv[1]
- # the sgml parser doesn't handle entities in attributes, nor
- # does it pass the attribute values through as unicode, while
- # strict xml parsers do -- account for this difference
- if isinstance(self, _LooseFeedParser):
- v = v.replace('&', '&')
- if not isinstance(v, unicode):
- v = v.decode('utf-8')
- return (k, v)
- def unknown_starttag(self, tag, attrs):
- # increment depth counter
- self.depth += 1
- # normalize attrs
- attrs = map(self._normalize_attributes, attrs)
- # track xml:base and xml:lang
- attrsD = dict(attrs)
- baseuri = attrsD.get('xml:base', attrsD.get('base')) or self.baseuri
- if not isinstance(baseuri, unicode):
- baseuri = baseuri.decode(self.encoding, 'ignore')
- # ensure that self.baseuri is always an absolute URI that
- # uses a whitelisted URI scheme (e.g. not `javscript:`)
- if self.baseuri:
- self.baseuri = _makeSafeAbsoluteURI(self.baseuri, baseuri) or self.baseuri
- else:
- self.baseuri = _urljoin(self.baseuri, baseuri)
- lang = attrsD.get('xml:lang', attrsD.get('lang'))
- if lang == '':
- # xml:lang could be explicitly set to '', we need to capture that
- lang = None
- elif lang is None:
- # if no xml:lang is specified, use parent lang
- lang = self.lang
- if lang:
- if tag in ('feed', 'rss', 'rdf:RDF'):
- self.feeddata['language'] = lang.replace('_','-')
- self.lang = lang
- self.basestack.append(self.baseuri)
- self.langstack.append(lang)
- # track namespaces
- for prefix, uri in attrs:
- if prefix.startswith('xmlns:'):
- self.trackNamespace(prefix[6:], uri)
- elif prefix == 'xmlns':
- self.trackNamespace(None, uri)
- # track inline content
- if self.incontent and not self.contentparams.get('type', u'xml').endswith(u'xml'):
- if tag in ('xhtml:div', 'div'):
- return # typepad does this 10/2007
- # element declared itself as escaped markup, but it isn't really
- self.contentparams['type'] = u'application/xhtml+xml'
- if self.incontent and self.contentparams.get('type') == u'application/xhtml+xml':
- if tag.find(':') <> -1:
- prefix, tag = tag.split(':', 1)
- namespace = self.namespacesInUse.get(prefix, '')
- if tag=='math' and namespace=='http://www.w3.org/1998/Math/MathML':
- attrs.append(('xmlns',namespace))
- if tag=='svg' and namespace=='http://www.w3.org/2000/svg':
- attrs.append(('xmlns',namespace))
- if tag == 'svg':
- self.svgOK += 1
- return self.handle_data('<%s%s>' % (tag, self.strattrs(attrs)), escape=0)
- # match namespaces
- if tag.find(':') <> -1:
- prefix, suffix = tag.split(':', 1)
- else:
- prefix, suffix = '', tag
- prefix = self.namespacemap.get(prefix, prefix)
- if prefix:
- prefix = prefix + '_'
- # special hack for better tracking of empty textinput/image elements in illformed feeds
- if (not prefix) and tag not in ('title', 'link', 'description', 'name'):
- self.intextinput = 0
- if (not prefix) and tag not in ('title', 'link', 'description', 'url', 'href', 'width', 'height'):
- self.inimage = 0
- # call special handler (if defined) or default handler
- methodname = '_start_' + prefix + suffix
- try:
- method = getattr(self, methodname)
- return method(attrsD)
- except AttributeError:
- # Since there's no handler or something has gone wrong we explicitly add the element and its attributes
- unknown_tag = prefix + suffix
- if len(attrsD) == 0:
- # No attributes so merge it into the encosing dictionary
- return self.push(unknown_tag, 1)
- else:
- # Has attributes so create it in its own dictionary
- context = self._getContext()
- context[unknown_tag] = attrsD
- def unknown_endtag(self, tag):
- # match namespaces
- if tag.find(':') <> -1:
- prefix, suffix = tag.split(':', 1)
- else:
- prefix, suffix = '', tag
- prefix = self.namespacemap.get(prefix, prefix)
- if prefix:
- prefix = prefix + '_'
- if suffix == 'svg' and self.svgOK:
- self.svgOK -= 1
- # call special handler (if defined) or default handler
- methodname = '_end_' + prefix + suffix
- try:
- if self.svgOK:
- raise AttributeError()
- method = getattr(self, methodname)
- method()
- except AttributeError:
- self.pop(prefix + suffix)
- # track inline content
- if self.incontent and not self.contentparams.get('type', u'xml').endswith(u'xml'):
- # element declared itself as escaped markup, but it isn't really
- if tag in ('xhtml:div', 'div'):
- return # typepad does this 10/2007
- self.contentparams['type'] = u'application/xhtml+xml'
- if self.incontent and self.contentparams.get('type') == u'application/xhtml+xml':
- tag = tag.split(':')[-1]
- self.handle_data('</%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:
- # do not resolve guid elements with isPermalink="false"
- if not element == 'id' or self.guidislink:
- output = self.resolveURI(output)
- # decode entities within embedded markup
- if not self.contentparams.get('base64', 0):
- output = self.decodeEntities(element, output)
- # some feed formats require consumers to guess
- # whether the content is html or plain text
- if not self.version.startswith(u'atom') and self.contentparams.get('type') == u'text/plain':
- if self.lookslikehtml(output):
- self.contentparams['type'] = u'text/html'
- # remove temporary cruft from contentparams
- try:
- del self.contentparams['mode']
- except KeyError:
- pass
- try:
- del self.contentparams['base64']
- except KeyError:
- pass
- is_htmlish = self.mapContentType(self.contentparams.get('type', u'text/html')) in self.html_types
- # resolve relative URIs within embedded markup
- if is_htmlish and RESOLVE_RELATIVE_URIS:
- if element in self.can_contain_relative_uris:
- output = _resolveRelativeURIs(output, self.baseuri, self.encoding, self.contentparams.get('type', u'text/html'))
- # sanitize embedded markup
- if is_htmlish and SANITIZE_HTML:
- if element in self.can_contain_dangerous_markup:
- output = _sanitizeHTML(output, self.encoding, self.contentparams.get('type', u'text/html'))
- if self.encoding and not isinstance(output, unicode):
- output = output.decode(self.encoding, 'ignore')
- # address common error where people take data that is already
- # utf-8, presume that it is iso-8859-1, and re-encode it.
- if self.encoding in (u'utf-8', u'utf-8_INVALID_PYTHON_3') and isinstance(output, unicode):
- try:
- output = output.encode('iso-8859-1').decode('utf-8')
- except (UnicodeEncodeError, UnicodeDecodeError):
- pass
- # map win-1252 extensions to the proper code points
- if isinstance(output, unicode):
- output = output.translate(_cp1252)
- # categories/tags/keywords/whatever are handled in _end_category or _end_tags or _end_itunes_keywords
- if element in ('category', 'tags', 'itunes_keywords'):
- return output
- if element == 'title' and -1 < self.title_depth <= self.depth:
- return output
- # store output in appropriate place(s)
- if self.inentry and not self.insource:
- if element == 'content':
- self.entries[-1].setdefault(element, [])
- contentparams = copy.deepcopy(self.contentparams)
- contentparams['value'] = output
- self.entries[-1][element].append(contentparams)
- elif element == 'link':
- if not self.inimage:
- # query variables in urls in link elements are improperly
- # converted from `?a=1&b=2` to `?a=1&b;=2` as if they're
- # unhandled character references. fix this special case.
- output = output.replace('&', '&')
- output = re.sub("&([A-Za-z0-9_]+);", "&\g<1>", output)
- self.entries[-1][element] = output
- if output:
- self.entries[-1]['links'][-1]['href'] = output
- else:
- if element == 'description':
- element = 'summary'
- old_value_depth = self.property_depth_map.setdefault(self.entries[-1], {}).get(element)
- if old_value_depth is None or self.depth <= old_value_depth:
- self.property_depth_map[self.entries[-1]][element] = self.depth
- self.entries[-1][element] = output
- if self.incontent:
- contentparams = copy.deepcopy(self.contentparams)
- contentparams['value'] = output
- self.entries[-1][element + '_detail'] = contentparams
- elif (self.infeed or self.insource):# and (not self.intextinput) and (not self.inimage):
- context = self._getContext()
- if element == 'description':
- element = 'subtitle'
- context[element] = output
- if element == 'link':
- # fix query variables; see above for the explanation
- output = re.sub("&([A-Za-z0-9_]+);", "&\g<1>", output)
- context[element] = output
- context['links'][-1]['href'] = output
- elif self.incontent:
- contentparams = copy.deepcopy(self.contentparams)
- contentparams['value'] = output
- context[element + '_detail'] = contentparams
- return output
- def pushContent(self, tag, attrsD, defaultContentType, expectingText):
- self.incontent += 1
- if self.lang:
- self.lang=self.lang.replace('_','-')
- self.contentparams = FeedParserDict({
- 'type': self.mapContentType(attrsD.get('type', defaultContentType)),
- 'language': self.lang,
- 'base': self.baseuri})
- self.contentparams['base64'] = self._isBase64(attrsD, self.contentparams)
- self.push(tag, expectingText)
- def popContent(self, tag):
- value = self.pop(tag)
- self.incontent -= 1
- self.contentparams.clear()
- return value
- # a number of elements in a number of RSS variants are nominally plain
- # text, but this is routinely ignored. This is an attempt to detect
- # the most common cases. As false positives often result in silent
- # data loss, this function errs on the conservative side.
- @staticmethod
- def lookslikehtml(s):
- # must have a close tag or an entity reference to qualify
- if not (re.search(r'</(\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('%ss' % key, [FeedParserDict()])[-1]
- if detail:
- name = detail.get('name')
- email = detail.get('email')
- if name and email:
- context[key] = u'%s (%s)' % (name, email)
- elif name:
- context[key] = name
- elif email:
- context[key] = email
- else:
- author, email = context.get(key), None
- if not author:
- return
- emailmatch = re.search(ur'''(([a-zA-Z0-9\_\-\.\+]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?))(\?subject=\S+)?''', author)
- if emailmatch:
- email = emailmatch.group(0)
- # probably a better way to do the following, but it passes all the tests
- author = author.replace(email, u'')
- author = author.replace(u'()', u'')
- author = author.replace(u'<>', u'')
- author = author.replace(u'<>', u'')
- author = author.strip()
- if author and (author[0] == u'('):
- author = author[1:]
- if author and (author[-1] == u')'):
- author = author[:-1]
- author = author.strip()
- if author or email:
- context.setdefault('%s_detail' % key, detail)
- if author:
- detail['name'] = author
- if email:
- detail['email'] = email
- def _start_subtitle(self, attrsD):
- self.pushContent('subtitle', attrsD, u'text/plain', 1)
- _start_tagline = _start_subtitle
- _start_itunes_subtitle = _start_subtitle
- def _end_subtitle(self):
- self.popContent('subtitle')
- _end_tagline = _end_subtitle
- _end_itunes_subtitle = _end_subtitle
- def _start_rights(self, attrsD):
- self.pushContent('rights', attrsD, u'text/plain', 1)
- _start_dc_rights = _start_rights
- _start_copyright = _start_rights
- def _end_rights(self):
- self.popContent('rights')
- _end_dc_rights = _end_rights
- _end_copyright = _end_rights
- def _start_item(self, attrsD):
- self.entries.append(FeedParserDict())
- self.push('item', 0)
- self.inentry = 1
- self.guidislink = 0
- self.title_depth = -1
- self.psc_chapters_flag = None
- id = self._getAttribute(attrsD, 'rdf:about')
- if id:
- context = self._getContext()
- context['id'] = id
- self._cdf_common(attrsD)
- _start_entry = _start_item
- def _end_item(self):
- self.pop('item')
- self.inentry = 0
- _end_entry = _end_item
- def _start_dc_language(self, attrsD):
- self.push('language', 1)
- _start_language = _start_dc_language
- def _end_dc_language(self):
- self.lang = self.pop('language')
- _end_language = _end_dc_language
- def _start_dc_publisher(self, attrsD):
- self.push('publisher', 1)
- _start_webmaster = _start_dc_publisher
- def _end_dc_publisher(self):
- self.pop('publisher')
- self._sync_author_detail('publisher')
- _end_webmaster = _end_dc_publisher
- def _start_dcterms_valid(self, attrsD):
- self.push('validity', 1)
- def _end_dcterms_valid(self):
- for validity_detail in self.pop('validity').split(';'):
- if '=' in validity_detail:
- key, value = validity_detail.split('=', 1)
- if key == 'start':
- self._save('validity_start', value, overwrite=True)
- self._save('validity_start_parsed', _parse_date(value), overwrite=True)
- elif key == 'end':
- self._save('validity_end', value, overwrite=True)
- self._save('validity_end_parsed', _parse_date(value), overwrite=True)
- def _start_published(self, attrsD):
- self.push('published', 1)
- _start_dcterms_issued = _start_published
- _start_issued = _start_published
- _start_pubdate = _start_published
- def _end_published(self):
- value = self.pop('published')
- self._save('published_parsed', _parse_date(value), overwrite=True)
- _end_dcterms_issued = _end_published
- _end_issued = _end_published
- _end_pubdate = _end_published
- def _start_updated(self, attrsD):
- self.push('updated', 1)
- _start_modified = _start_updated
- _start_dcterms_modified = _start_updated
- _start_dc_date = _start_updated
- _start_lastbuilddate = _start_updated
- def _end_updated(self):
- value = self.pop('updated')
- parsed_value = _parse_date(value)
- self._save('updated_parsed', parsed_value, overwrite=True)
- _end_modified = _end_updated
- _end_dcterms_modified = _end_updated
- _end_dc_date = _end_updated
- _end_lastbuilddate = _end_updated
- def _start_created(self, attrsD):
- self.push('created', 1)
- _start_dcterms_created = _start_created
- def _end_created(self):
- value = self.pop('created')
- self._save('created_parsed', _parse_date(value), overwrite=True)
- _end_dcterms_created = _end_created
- def _start_expirationdate(self, attrsD):
- self.push('expired', 1)
- def _end_expirationdate(self):
- self._save('expired_parsed', _parse_date(self.pop('expired')), overwrite=True)
- # geospatial location, or "where", from georss.org
- def _start_georssgeom(self, attrsD):
- self.push('geometry', 0)
- context = self._getContext()
- context['where'] = FeedParserDict()
- _start_georss_point = _start_georssgeom
- _start_georss_line = _start_georssgeom
- _start_georss_polygon = _start_georssgeom
- _start_georss_box = _start_georssgeom
- def _save_where(self, geometry):
- context = self._getContext()
- context['where'].update(geometry)
- def _end_georss_point(self):
- geometry = _parse_georss_point(self.pop('geometry'))
- if geometry:
- self._save_where(geometry)
- def _end_georss_line(self):
- geometry = _parse_georss_line(self.pop('geometry'))
- if geometry:
- self._save_where(geometry)
- def _end_georss_polygon(self):
- this = self.pop('geometry')
- geometry = _parse_georss_polygon(this)
- if geometry:
- self._save_where(geometry)
- def _end_georss_box(self):
- geometry = _parse_georss_box(self.pop('geometry'))
- if geometry:
- self._save_where(geometry)
- def _start_where(self, attrsD):
- self.push('where', 0)
- context = self._getContext()
- context['where'] = FeedParserDict()
- _start_georss_where = _start_where
- def _parse_srs_attrs(self, attrsD):
- srsName = attrsD.get('srsname')
- try:
- srsDimension = int(attrsD.get('srsdimension', '2'))
- except ValueError:
- srsDimension = 2
- context = self._getContext()
- context['where']['srsName'] = srsName
- context['where']['srsDimension'] = srsDimension
- def _start_gml_point(self, attrsD):
- self._parse_srs_attrs(attrsD)
- self.ingeometry = 1
- self.push('geometry', 0)
- def _start_gml_linestring(self, attrsD):
- self._parse_srs_attrs(attrsD)
- self.ingeometry = 'linestring'
- self.push('geometry', 0)
- def _start_gml_polygon(self, attrsD):
- self._parse_srs_attrs(attrsD)
- self.push('geometry', 0)
- def _start_gml_exterior(self, attrsD):
- self.push('geometry', 0)
- def _start_gml_linearring(self, attrsD):
- self.ingeometry = 'polygon'
- self.push('geometry', 0)
- def _start_gml_pos(self, attrsD):
- self.push('pos', 0)
- def _end_gml_pos(self):
- this = self.pop('pos')
- context = self._getContext()
- srsName = context['where'].get('srsName')
- srsDimension = context['where'].get('srsDimension', 2)
- swap = True
- if srsName and "EPSG" in srsName:
- epsg = int(srsName.split(":")[-1])
- swap = bool(epsg in _geogCS)
- geometry = _parse_georss_point(this, swap=swap, dims=srsDimension)
- if geometry:
- self._save_where(geometry)
- def _start_gml_poslist(self, attrsD):
- self.push('pos', 0)
- def _end_gml_poslist(self):
- this = self.pop('pos')
- context = self._getContext()
- srsName = context['where'].get('srsName')
- srsDimension = context['where'].get('srsDimension', 2)
- swap = True
- if srsName and "EPSG" in srsName:
- epsg = int(srsName.split(":")[-1])
- swap = bool(epsg in _geogCS)
- geometry = _parse_poslist(
- this, self.ingeometry, swap=swap, dims=srsDimension)
- if geometry:
- self._save_where(geometry)
- def _end_geom(self):
- self.ingeometry = 0
- self.pop('geometry')
- _end_gml_point = _end_geom
- _end_gml_linestring = _end_geom
- _end_gml_linearring = _end_geom
- _end_gml_exterior = _end_geom
- _end_gml_polygon = _end_geom
- def _end_where(self):
- self.pop('where')
- _end_georss_where = _end_where
- # end geospatial
- def _start_cc_license(self, attrsD):
- context = self._getContext()
- value = self._getAttribute(attrsD, 'rdf:resource')
- attrsD = FeedParserDict()
- attrsD['rel'] = u'license'
- if value:
- attrsD['href']=value
- context.setdefault('links', []).append(attrsD)
- def _start_creativecommons_license(self, attrsD):
- self.push('license', 1)
- _start_creativeCommons_license = _start_creativecommons_license
- def _end_creativecommons_license(self):
- value = self.pop('license')
- context = self._getContext()
- attrsD = FeedParserDict()
- attrsD['rel'] = u'license'
- if value:
- attrsD['href'] = value
- context.setdefault('links', []).append(attrsD)
- del context['license']
- _end_creativeCommons_license = _end_creativecommons_license
- def _addTag(self, term, scheme, label):
- context = self._getContext()
- tags = context.setdefault('tags', [])
- if (not term) and (not scheme) and (not label):
- return
- value = FeedParserDict(term=term, scheme=scheme, label=label)
- if value not in tags:
- tags.append(value)
- def _start_tags(self, attrsD):
- # This is a completely-made up element. Its semantics are determined
- # only by a single feed that precipitated bug report 392 on Google Code.
- # In short, this is junk code.
- self.push('tags', 1)
- def _end_tags(self):
- for term in self.pop('tags').split(','):
- self._addTag(term.strip(), None, None)
- def _start_category(self, attrsD):
- term = attrsD.get('term')
- scheme = attrsD.get('scheme', attrsD.get('domain'))
- label = attrsD.get('label')
- self._addTag(term, scheme, label)
- self.push('category', 1)
- _start_dc_subject = _start_category
- _start_keywords = _start_category
- def _start_media_category(self, attrsD):
- attrsD.setdefault('scheme', u'http://search.yahoo.com/mrss/category_schema')
- self._start_category(attrsD)
- def _end_itunes_keywords(self):
- for term in self.pop('itunes_keywords').split(','):
- if term.strip():
- self._addTag(term.strip(), u'http://www.itunes.com/', None)
- def _end_media_keywords(self):
- for term in self.pop('media_keywords').split(','):
- if term.strip():
- self._addTag(term.strip(), None, None)
- def _start_itunes_category(self, attrsD):
- self._addTag(attrsD.get('text'), u'http://www.itunes.com/', None)
- self.push('category', 1)
- def _end_category(self):
- value = self.pop('category')
- if not value:
- return
- context = self._getContext()
- tags = context['tags']
- if value and len(tags) and not tags[-1]['term']:
- tags[-1]['term'] = value
- else:
- self._addTag(value, None, None)
- _end_dc_subject = _end_category
- _end_keywords = _end_category
- _end_itunes_category = _end_category
- _end_media_category = _end_category
- def _start_cloud(self, attrsD):
- self._getContext()['cloud'] = FeedParserDict(attrsD)
- def _start_link(self, attrsD):
- attrsD.setdefault('rel', u'alternate')
- if attrsD['rel'] == u'self':
- attrsD.setdefault('type', u'application/atom+xml')
- else:
- attrsD.setdefault('type', u'text/html')
- context = self._getContext()
- attrsD = self._itsAnHrefDamnIt(attrsD)
- if 'href' in attrsD:
- attrsD['href'] = self.resolveURI(attrsD['href'])
- expectingText = self.infeed or self.inentry or self.insource
- context.setdefault('links', [])
- if not (self.inentry and self.inimage):
- context['links'].append(FeedParserDict(attrsD))
- if 'href' in attrsD:
- expectingText = 0
- if (attrsD.get('rel') == u'alternate') and (self.mapContentType(attrsD.get('type')) in self.html_types):
- context['link'] = attrsD['href']
- else:
- self.push('link', expectingText)
- def _end_link(self):
- value = self.pop('link')
- def _start_guid(self, attrsD):
- self.guidislink = (attrsD.get('ispermalink', 'true') == 'true')
- self.push('id', 1)
- _start_id = _start_guid
- def _end_guid(self):
- value = self.pop('id')
- self._save('guidislink', self.guidislink and 'link' not in self._getContext())
- if self.guidislink:
- # guid acts as link, but only if 'ispermalink' is not present or is 'true',
- # and only if the item doesn't already have a link element
- self._save('link', value)
- _end_id = _end_guid
- def _start_title(self, attrsD):
- if self.svgOK:
- return self.unknown_starttag('title', attrsD.items())
- self.pushContent('title', attrsD, u'text/plain', self.infeed or self.inentry or self.insource)
- _start_dc_title = _start_title
- _start_media_title = _start_title
- def _end_title(self):
- if self.svgOK:
- return
- value = self.popContent('title')
- if not value:
- return
- self.title_depth = self.depth
- _end_dc_title = _end_title
- def _end_media_title(self):
- title_depth = self.title_depth
- self._end_title()
- self.title_depth = title_depth
- def _start_description(self, attrsD):
- context = self._getContext()
- if 'summary' in context:
- self._summaryKey = 'content'
- self._start_content(attrsD)
- else:
- self.pushContent('description', attrsD, u'text/html', self.infeed or self.inentry or self.insource)
- _start_dc_description = _start_description
- _start_media_description = _start_description
- def _start_abstract(self, attrsD):
- self.pushContent('description', attrsD, u'text/plain', self.infeed or self.inentry or self.insource)
- def _end_description(self):
- if self._summaryKey == 'content':
- self._end_content()
- else:
- value = self.popContent('description')
- self._summaryKey = None
- _end_abstract = _end_description
- _end_dc_description = _end_description
- _end_media_description = _end_description
- def _start_info(self, attrsD):
- self.pushContent('info', attrsD, u'text/plain', 1)
- _start_feedburner_browserfriendly = _start_info
- def _end_info(self):
- self.popContent('info')
- _end_feedburner_browserfriendly = _end_info
- def _start_generator(self, attrsD):
- if attrsD:
- attrsD = self._itsAnHrefDamnIt(attrsD)
- if 'href' in attrsD:
- attrsD['href'] = self.resolveURI(attrsD['href'])
- self._getContext()['generator_detail'] = FeedParserDict(attrsD)
- self.push('generator', 1)
- def _end_generator(self):
- value = self.pop('generator')
- context = self._getContext()
- if 'generator_detail' in context:
- context['generator_detail']['name'] = value
- def _start_admin_generatoragent(self, attrsD):
- self.push('generator', 1)
- value = self._getAttribute(attrsD, 'rdf:resource')
- if value:
- self.elementstack[-1][2].append(value)
- self.pop('generator')
- self._getContext()['generator_detail'] = FeedParserDict({'href': value})
- def _start_admin_errorreportsto(self, attrsD):
- self.push('errorreportsto', 1)
- value = self._getAttribute(attrsD, 'rdf:resource')
- if value:
- self.elementstack[-1][2].append(value)
- self.pop('errorreportsto')
- def _start_summary(self, attrsD):
- context = self._getContext()
- if 'summary' in context:
- self._summaryKey = 'content'
- self._start_content(attrsD)
- else:
- self._summaryKey = 'summary'
- self.pushContent(self._summaryKey, attrsD, u'text/plain', 1)
- _start_itunes_summary = _start_summary
- def _end_summary(self):
- if self._summaryKey == 'content':
- self._end_content()
- else:
- self.popContent(self._summaryKey or 'summary')
- self._summaryKey = None
- _end_itunes_summary = _end_summary
- def _start_enclosure(self, attrsD):
- attrsD = self._itsAnHrefDamnIt(attrsD)
- context = self._getContext()
- attrsD['rel'] = u'enclosure'
- context.setdefault('links', []).append(FeedParserDict(attrsD))
- def _start_source(self, attrsD):
- if 'url' in attrsD:
- # This means that we're processing a source element from an RSS 2.0 feed
- self.sourcedata['href'] = attrsD[u'url']
- self.push('source', 1)
- self.insource = 1
- self.title_depth = -1
- def _end_source(self):
- self.insource = 0
- value = self.pop('source')
- if value:
- self.sourcedata['title'] = value
- self._getContext()['source'] = copy.deepcopy(self.sourcedata)
- self.sourcedata.clear()
- def _start_content(self, attrsD):
- self.pushContent('content', attrsD, u'text/plain', 1)
- src = attrsD.get('src')
- if src:
- self.contentparams['src'] = src
- self.push('content', 1)
- def _start_body(self, attrsD):
- self.pushContent('content', attrsD, u'application/xhtml+xml', 1)
- _start_xhtml_body = _start_body
- def _start_content_encoded(self, attrsD):
- self.pushContent('content', attrsD, u'text/html', 1)
- _start_fullitem = _start_content_encoded
- def _end_content(self):
- copyToSummary = self.mapContentType(self.contentparams.get('type')) in ([u'text/plain'] + self.html_types)
- value = self.popContent('content')
- if copyToSummary:
- self._save('summary', value)
- _end_body = _end_content
- _end_xhtml_body = _end_content
- _end_content_encoded = _end_content
- _end_fullitem = _end_content
- def _start_itunes_image(self, attrsD):
- self.push('itunes_image', 0)
- if attrsD.get('href'):
- self._getContext()['image'] = FeedParserDict({'href': attrsD.get('href')})
- elif attrsD.get('url'):
- self._getContext()['image'] = FeedParserDict({'href': attrsD.get('url')})
- _start_itunes_link = _start_itunes_image
- def _end_itunes_block(self):
- value = self.pop('itunes_block', 0)
- self._getContext()['itunes_block'] = (value == 'yes') and 1 or 0
- def _end_itunes_explicit(self):
- value = self.pop('itunes_explicit', 0)
- # Convert 'yes' -> True, 'clean' to False, and any other value to None
- # False and None both evaluate as False, so the difference can be ignored
- # by applications that only need to know if the content is explicit.
- self._getContext()['itunes_explicit'] = (None, False, True)[(value == 'yes' and 2) or value == 'clean' or 0]
- def _start_media_group(self, attrsD):
- # don't do anything, but don't break the enclosed tags either
- pass
- def _start_media_rating(self, attrsD):
- context = self._getContext()
- context.setdefault('media_rating', attrsD)
- self.push('rating', 1)
- def _end_media_rating(self):
- rating = self.pop('rating')
- if rating is not None and rating.strip():
- context = self._getContext()
- context['media_rating']['content'] = rating
- def _start_media_credit(self, attrsD):
- context = self._getContext()
- context.setdefault('media_credit', [])
- context['media_credit'].append(attrsD)
- self.push('credit', 1)
- def _end_media_credit(self):
- credit = self.pop('credit')
- if credit != None and len(credit.strip()) != 0:
- context = self._getContext()
- context['media_credit'][-1]['content'] = credit
- def _start_media_restriction(self, attrsD):
- context = self._getContext()
- context.setdefault('media_restriction', attrsD)
- self.push('restriction', 1)
- def _end_media_restriction(self):
- restriction = self.pop('restriction')
- if restriction != None and len(restriction.strip()) != 0:
- context = self._getContext()
- context['media_restriction']['content'] = [cc.strip().lower() for cc in restriction.split(' ')]
- def _start_media_license(self, attrsD):
- context = self._getContext()
- context.setdefault('media_license', attrsD)
- self.push('license', 1)
- def _end_media_license(self):
- license = self.pop('license')
- if license != None and len(license.strip()) != 0:
- context = self._getContext()
- context['media_license']['content'] = license
- def _start_media_content(self, attrsD):
- context = self._getContext()
- context.setdefault('media_content', [])
- context['media_content'].append(attrsD)
- def _start_media_thumbnail(self, attrsD):
- context = self._getContext()
- context.setdefault('media_thumbnail', [])
- self.push('url', 1) # new
- context['media_thumbnail'].append(attrsD)
- def _end_media_thumbnail(self):
- url = self.pop('url')
- context = self._getContext()
- if url != None and len(url.strip()) != 0:
- if 'url' not in context['media_thumbnail'][-1]:
- context['media_thumbnail'][-1]['url'] = url
- def _start_media_player(self, attrsD):
- self.push('media_player', 0)
- self._getContext()['media_player'] = FeedParserDict(attrsD)
- def _end_media_player(self):
- value = self.pop('media_player')
- context = self._getContext()
- context['media_player']['content'] = value
- def _start_newlocation(self, attrsD):
- self.push('newlocation', 1)
- def _end_newlocation(self):
- url = self.pop('newlocation')
- context = self._getContext()
- # don't set newlocation if the context isn't right
- if context is not self.feeddata:
- return
- context['newlocation'] = _makeSafeAbsoluteURI(self.baseuri, url.strip())
- def _start_psc_chapters(self, attrsD):
- if self.psc_chapters_flag is None:
- # Transition from None -> True
- self.psc_chapters_flag = True
- attrsD['chapters'] = []
- self._getContext()['psc_chapters'] = FeedParserDict(attrsD)
- def _end_psc_chapters(self):
- # Transition from True -> False
- self.psc_chapters_flag = False
- def _start_psc_chapter(self, attrsD):
- if self.psc_chapters_flag:
- start = self._getAttribute(attrsD, 'start')
- attrsD['start_parsed'] = _parse_psc_chapter_start(start)
- context = self._getContext()['psc_chapters']
- context['chapters'].append(FeedParserDict(attrsD))
- if _XML_AVAILABLE:
- class _StrictFeedParser(_FeedParserMixin, xml.sax.handler.ContentHandler):
- def __init__(self, baseuri, baselang, encoding):
- xml.sax.handler.ContentHandler.__init__(self)
- _FeedParserMixin.__init__(self, baseuri, baselang, encoding)
- self.bozo = 0
- self.exc = None
- self.decls = {}
- def startPrefixMapping(self, prefix, uri):
- if not uri:
- return
- # Jython uses '' instead of None; standardize on None
- prefix = prefix or None
- self.trackNamespace(prefix, uri)
- if prefix and uri == 'http://www.w3.org/1999/xlink':
- self.decls['xmlns:' + prefix] = uri
- def startElementNS(self, name, qname, attrs):
- namespace, localname = name
- lowernamespace = str(namespace or '').lower()
- if lowernamespace.find(u'backend.userland.com/rss') <> -1:
- # match any backend.userland.com namespace
- namespace = u'http://backend.userland.com/rss'
- lowernamespace = namespace
- if qname and qname.find(':') > 0:
- givenprefix = qname.split(':')[0]
- else:
- givenprefix = None
- prefix = self._matchnamespaces.get(lowernamespace, givenprefix)
- if givenprefix and (prefix == None or (prefix == '' and lowernamespace == '')) and givenprefix not in self.namespacesInUse:
- raise UndeclaredNamespace, "'%s' is not associated with a namespace" % givenprefix
- localname = str(localname).lower()
- # qname implementation is horribly broken in Python 2.1 (it
- # doesn't report any), and slightly broken in Python 2.2 (it
- # doesn't report the xml: namespace). So we match up namespaces
- # with a known list first, and then possibly override them with
- # the qnames the SAX parser gives us (if indeed it gives us any
- # at all). Thanks to MatejC for helping me test this and
- # tirelessly telling me that it didn't work yet.
- attrsD, self.decls = self.decls, {}
- if localname=='math' and namespace=='http://www.w3.org/1998/Math/MathML':
- attrsD['xmlns']=namespace
- if localname=='svg' and namespace=='http://www.w3.org/2000/svg':
- attrsD['xmlns']=namespace
- if prefix:
- localname = prefix.lower() + ':' + localname
- elif namespace and not qname: #Expat
- for name,value in self.namespacesInUse.items():
- if name and value == namespace:
- localname = name + ':' + localname
- break
- for (namespace, attrlocalname), attrvalue in attrs.items():
- lowernamespace = (namespace or '').lower()
- prefix = self._matchnamespaces.get(lowernamespace, '')
- if prefix:
- attrlocalname = prefix + ':' + attrlocalname
- attrsD[str(attrlocalname).lower()] = attrvalue
- for qname in attrs.getQNames():
- attrsD[str(qname).lower()] = attrs.getValueByQName(qname)
- localname = str(localname).lower()
- self.unknown_starttag(localname, attrsD.items())
- def characters(self, text):
- self.handle_data(text)
- def endElementNS(self, name, qname):
- namespace, localname = name
- lowernamespace = str(namespace or '').lower()
- if qname and qname.find(':') > 0:
- givenprefix = qname.split(':')[0]
- else:
- givenprefix = ''
- prefix = self._matchnamespaces.get(lowernamespace, givenprefix)
- if prefix:
- localname = prefix + ':' + localname
- elif namespace and not qname: #Expat
- for name,value in self.namespacesInUse.items():
- if name and value == namespace:
- localname = name + ':' + localname
- break
- localname = str(localname).lower()
- self.unknown_endtag(localname)
- def error(self, exc):
- self.bozo = 1
- self.exc = exc
- # drv_libxml2 calls warning() in some cases
- warning = error
- def fatalError(self, exc):
- self.error(exc)
- raise exc
- class _BaseHTMLProcessor(sgmllib.SGMLParser):
- special = re.compile('''[<>'"]''')
- bare_ampersand = re.compile("&(?!#\d+;|#x[0-9a-fA-F]+;|\w+;)")
- elements_no_end_tag = set([
- 'area', 'base', 'basefont', 'br', 'col', 'command', 'embed', 'frame',
- 'hr', 'img', 'input', 'isindex', 'keygen', 'link', 'meta', 'param',
- 'source', 'track', 'wbr'
- ])
- def __init__(self, encoding, _type):
- self.encoding = encoding
- self._type = _type
- sgmllib.SGMLParser.__init__(self)
- def reset(self):
- self.pieces = []
- sgmllib.SGMLParser.reset(self)
- def _shorttag_replace(self, match):
- tag = match.group(1)
- if tag in self.elements_no_end_tag:
- return '<' + tag + ' />'
- else:
- return '<' + tag + '></' + 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(''', "'")
- data = data.replace('/', '/')
- data = data.replace('/', '/')
- return data
- def strattrs(self, attrs):
- return ''.join([' %s="%s"' % (n,v.replace('"','"')) for n,v in attrs])
- class _RelativeURIResolver(_BaseHTMLProcessor):
- relative_uris = set([('a', 'href'),
- ('applet', 'codebase'),
- ('area', 'href'),
- ('audio', 'src'),
- ('blockquote', 'cite'),
- ('body', 'background'),
- ('del', 'cite'),
- ('form', 'action'),
- ('frame', 'longdesc'),
- ('frame', 'src'),
- ('iframe', 'longdesc'),
- ('iframe', 'src'),
- ('head', 'profile'),
- ('img', 'longdesc'),
- ('img', 'src'),
- ('img', 'usemap'),
- ('input', 'src'),
- ('input', 'usemap'),
- ('ins', 'cite'),
- ('link', 'href'),
- ('object', 'classid'),
- ('object', 'codebase'),
- ('object', 'data'),
- ('object', 'usemap'),
- ('q', 'cite'),
- ('script', 'src'),
- ('source', 'src'),
- ('video', 'poster'),
- ('video', 'src')])
- def __init__(self, baseuri, encoding, _type):
- _BaseHTMLProcessor.__init__(self, encoding, _type)
- self.baseuri = baseuri
- def resolveURI(self, uri):
- return _makeSafeAbsoluteURI(self.baseuri, uri.strip())
- def unknown_starttag(self, tag, attrs):
- attrs = self.normalize_attrs(attrs)
- attrs = [(key, ((tag, key) in self.relative_uris) and self.resolveURI(value) or value) for key, value in attrs]
- _BaseHTMLProcessor.unknown_starttag(self, tag, attrs)
- def _resolveRelativeURIs(htmlSource, baseURI, encoding, _type):
- if not _SGML_AVAILABLE:
- return htmlSource
- p = _RelativeURIResolver(baseURI, encoding, _type)
- p.feed(htmlSource)
- return p.output()
- def _makeSafeAbsoluteURI(base, rel=None):
- # bail if ACCEPTABLE_URI_SCHEMES is empty
- if not ACCEPTABLE_URI_SCHEMES:
- return _urljoin(base, rel or u'')
- if not base:
- return rel or u''
- if not rel:
- try:
- scheme = urlparse.urlparse(base)[0]
- except ValueError:
- return u''
- if not scheme or scheme in ACCEPTABLE_URI_SCHEMES:
- return base
- return u''
- uri = _urljoin(base, rel)
- if uri.strip().split(':', 1)[0] not in ACCEPTABLE_URI_SCHEMES:
- return u''
- return uri
- class _HTMLSanitizer(_BaseHTMLProcessor):
- acceptable_elements = set(['a', 'abbr', 'acronym', 'address', 'area',
- 'article', 'aside', 'audio', 'b', 'big', 'blockquote', 'br', 'button',
- 'canvas', 'caption', 'center', 'cite', 'code', 'col', 'colgroup',
- 'command', 'datagrid', 'datalist', 'dd', 'del', 'details', 'dfn',
- 'dialog', 'dir', 'div', 'dl', 'dt', 'em', 'event-source', 'fieldset',
- 'figcaption', 'figure', 'footer', 'font', 'form', 'header', 'h1',
- 'h2', 'h3', 'h4', 'h5', 'h6', 'hr', 'i', 'img', 'input', 'ins',
- 'keygen', 'kbd', 'label', 'legend', 'li', 'm', 'map', 'menu', 'meter',
- 'multicol', 'nav', 'nextid', 'ol', 'output', 'optgroup', 'option',
- 'p', 'pre', 'progress', 'q', 's', 'samp', 'section', 'select',
- 'small', 'sound', 'source', 'spacer', 'span', 'strike', 'strong',
- 'sub', 'sup', 'table', 'tbody', 'td', 'textarea', 'time', 'tfoot',
- 'th', 'thead', 'tr', 'tt', 'u', 'ul', 'var', 'video', 'noscript'])
- acceptable_attributes = set(['abbr', 'accept', 'accept-charset', 'accesskey',
- 'action', 'align', 'alt', 'autocomplete', 'autofocus', 'axis',
- 'background', 'balance', 'bgcolor', 'bgproperties', 'border',
- 'bordercolor', 'bordercolordark', 'bordercolorlight', 'bottompadding',
- 'cellpadding', 'cellspacing', 'ch', 'challenge', 'char', 'charoff',
- 'choff', 'charset', 'checked', 'cite', 'class', 'clear', 'color', 'cols',
- 'colspan', 'compact', 'contenteditable', 'controls', 'coords', 'data',
- 'datafld', 'datapagesize', 'datasrc', 'datetime', 'default', 'delay',
- 'dir', 'disabled', 'draggable', 'dynsrc', 'enctype', 'end', 'face', 'for',
- 'form', 'frame', 'galleryimg', 'gutter', 'headers', 'height', 'hidefocus',
- 'hidden', 'high', 'href', 'hreflang', 'hspace', 'icon', 'id', 'inputmode',
- 'ismap', 'keytype', 'label', 'leftspacing', 'lang', 'list', 'longdesc',
- 'loop', 'loopcount', 'loopend', 'loopstart', 'low', 'lowsrc', 'max',
- 'maxlength', 'media', 'method', 'min', 'multiple', 'name', 'nohref',
- 'noshade', 'nowrap', 'open', 'optimum', 'pattern', 'ping', 'point-size',
- 'poster', 'pqg', 'preload', 'prompt', 'radiogroup', 'readonly', 'rel',
- 'repeat-max', 'repeat-min', 'replace', 'required', 'rev', 'rightspacing',
- 'rows', 'rowspan', 'rules', 'scope', 'selected', 'shape', 'size', 'span',
- 'src', 'start', 'step', 'summary', 'suppress', 'tabindex', 'target',
- 'template', 'title', 'toppadding', 'type', 'unselectable', 'usemap',
- 'urn', 'valign', 'value', 'variable', 'volume', 'vspace', 'vrml',
- 'width', 'wrap', 'xml:lang'])
- unacceptable_elements_with_end_tag = set(['script', 'applet', 'style'])
- acceptable_css_properties = set(['azimuth', 'background-color',
- 'border-bottom-color', 'border-collapse', 'border-color',
- 'border-left-color', 'border-right-color', 'border-top-color', 'clear',
- 'color', 'cursor', 'direction', 'display', 'elevation', 'float', 'font',
- 'font-family', 'font-size', 'font-style', 'font-variant', 'font-weight',
- 'height', 'letter-spacing', 'line-height', 'overflow', 'pause',
- 'pause-after', 'pause-before', 'pitch', 'pitch-range', 'richness',
- 'speak', 'speak-header', 'speak-numeral', 'speak-punctuation',
- 'speech-rate', 'stress', 'text-align', 'text-decoration', 'text-indent',
- 'unicode-bidi', 'vertical-align', 'voice-family', 'volume',
- 'white-space', 'width'])
- # survey of common keywords found in feeds
- acceptable_css_keywords = set(['auto', 'aqua', 'black', 'block', 'blue',
- 'bold', 'both', 'bottom', 'brown', 'center', 'collapse', 'dashed',
- 'dotted', 'fuchsia', 'gray', 'green', '!important', 'italic', 'left',
- 'lime', 'maroon', 'medium', 'none', 'navy', 'normal', 'nowrap', 'olive',
- 'pointer', 'purple', 'red', 'right', 'solid', 'silver', 'teal', 'top',
- 'transparent', 'underline', 'white', 'yellow'])
- valid_css_values = re.compile('^(#[0-9a-f]+|rgb\(\d+%?,\d*%?,?\d*%?\)?|' +
- '\d{0,2}\.?\d{0,2}(cm|em|ex|in|mm|pc|pt|px|%|,|\))?)$')
- mathml_elements = set([
- 'annotation',
- 'annotation-xml',
- 'maction',
- 'maligngroup',
- 'malignmark',
- 'math',
- 'menclose',
- 'merror',
- 'mfenced',
- 'mfrac',
- 'mglyph',
- 'mi',
- 'mlabeledtr',
- 'mlongdiv',
- 'mmultiscripts',
- 'mn',
- 'mo',
- 'mover',
- 'mpadded',
- 'mphantom',
- 'mprescripts',
- 'mroot',
- 'mrow',
- 'ms',
- 'mscarries',
- 'mscarry',
- 'msgroup',
- 'msline',
- 'mspace',
- 'msqrt',
- 'msrow',
- 'mstack',
- 'mstyle',
- 'msub',
- 'msubsup',
- 'msup',
- 'mtable',
- 'mtd',
- 'mtext',
- 'mtr',
- 'munder',
- 'munderover',
- 'none',
- 'semantics',
- ])
- mathml_attributes = set([
- 'accent',
- 'accentunder',
- 'actiontype',
- 'align',
- 'alignmentscope',
- 'altimg',
- 'altimg-height',
- 'altimg-valign',
- 'altimg-width',
- 'alttext',
- 'bevelled',
- 'charalign',
- 'close',
- 'columnalign',
- 'columnlines',
- 'columnspacing',
- 'columnspan',
- 'columnwidth',
- 'crossout',
- 'decimalpoint',
- 'denomalign',
- 'depth',
- 'dir',
- 'display',
- 'displaystyle',
- 'edge',
- 'encoding',
- 'equalcolumns',
- 'equalrows',
- 'fence',
- 'fontstyle',
- 'fontweight',
- 'form',
- 'frame',
- 'framespacing',
- 'groupalign',
- 'height',
- 'href',
- 'id',
- 'indentalign',
- 'indentalignfirst',
- 'indentalignlast',
- 'indentshift',
- 'indentshiftfirst',
- 'indentshiftlast',
- 'indenttarget',
- 'infixlinebreakstyle',
- 'largeop',
- 'length',
- 'linebreak',
- 'linebreakmultchar',
- 'linebreakstyle',
- 'lineleading',
- 'linethickness',
- 'location',
- 'longdivstyle',
- 'lquote',
- 'lspace',
- 'mathbackground',
- 'mathcolor',
- 'mathsize',
- 'mathvariant',
- 'maxsize',
- 'minlabelspacing',
- 'minsize',
- 'movablelimits',
- 'notation',
- 'numalign',
- 'open',
- 'other',
- 'overflow',
- 'position',
- 'rowalign',
- 'rowlines',
- 'rowspacing',
- 'rowspan',
- 'rquote',
- 'rspace',
- 'scriptlevel',
- 'scriptminsize',
- 'scriptsizemultiplier',
- 'selection',
- 'separator',
- 'separators',
- 'shift',
- 'side',
- 'src',
- 'stackalign',
- 'stretchy',
- 'subscriptshift',
- 'superscriptshift',
- 'symmetric',
- 'voffset',
- 'width',
- 'xlink:href',
- 'xlink:show',
- 'xlink:type',
- 'xmlns',
- 'xmlns:xlink',
- ])
- # svgtiny - foreignObject + linearGradient + radialGradient + stop
- svg_elements = set(['a', 'animate', 'animateColor', 'animateMotion',
- 'animateTransform', 'circle', 'defs', 'desc', 'ellipse', 'foreignObject',
- 'font-face', 'font-face-name', 'font-face-src', 'g', 'glyph', 'hkern',
- 'linearGradient', 'line', 'marker', 'metadata', 'missing-glyph', 'mpath',
- 'path', 'polygon', 'polyline', 'radialGradient', 'rect', 'set', 'stop',
- 'svg', 'switch', 'text', 'title', 'tspan', 'use'])
- # svgtiny + class + opacity + offset + xmlns + xmlns:xlink
- svg_attributes = set(['accent-height', 'accumulate', 'additive', 'alphabetic',
- 'arabic-form', 'ascent', 'attributeName', 'attributeType',
- 'baseProfile', 'bbox', 'begin', 'by', 'calcMode', 'cap-height',
- 'class', 'color', 'color-rendering', 'content', 'cx', 'cy', 'd', 'dx',
- 'dy', 'descent', 'display', 'dur', 'end', 'fill', 'fill-opacity',
- 'fill-rule', 'font-family', 'font-size', 'font-stretch', 'font-style',
- 'font-variant', 'font-weight', 'from', 'fx', 'fy', 'g1', 'g2',
- 'glyph-name', 'gradientUnits', 'hanging', 'height', 'horiz-adv-x',
- 'horiz-origin-x', 'id', 'ideographic', 'k', 'keyPoints', 'keySplines',
- 'keyTimes', 'lang', 'mathematical', 'marker-end', 'marker-mid',
- 'marker-start', 'markerHeight', 'markerUnits', 'markerWidth', 'max',
- 'min', 'name', 'offset', 'opacity', 'orient', 'origin',
- 'overline-position', 'overline-thickness', 'panose-1', 'path',
- 'pathLength', 'points', 'preserveAspectRatio', 'r', 'refX', 'refY',
- 'repeatCount', 'repeatDur', 'requiredExtensions', 'requiredFeatures',
- 'restart', 'rotate', 'rx', 'ry', 'slope', 'stemh', 'stemv',
- 'stop-color', 'stop-opacity', 'strikethrough-position',
- 'strikethrough-thickness', 'stroke', 'stroke-dasharray',
- 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin',
- 'stroke-miterlimit', 'stroke-opacity', 'stroke-width', 'systemLanguage',
- 'target', 'text-anchor', 'to', 'transform', 'type', 'u1', 'u2',
- 'underline-position', 'underline-thickness', 'unicode', 'unicode-range',
- 'units-per-em', 'values', 'version', 'viewBox', 'visibility', 'width',
- 'widths', 'x', 'x-height', 'x1', 'x2', 'xlink:actuate', 'xlink:arcrole',
- 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type',
- 'xml:base', 'xml:lang', 'xml:space', 'xmlns', 'xmlns:xlink', 'y', 'y1',
- 'y2', 'zoomAndPan'])
- svg_attr_map = None
- svg_elem_map = None
- acceptable_svg_properties = set([ 'fill', 'fill-opacity', 'fill-rule',
- 'stroke', 'stroke-width', 'stroke-linecap', 'stroke-linejoin',
- 'stroke-opacity'])
- def reset(self):
- _BaseHTMLProcessor.reset(self)
- self.unacceptablestack = 0
- self.mathmlOK = 0
- self.svgOK = 0
- def unknown_starttag(self, tag, attrs):
- acceptable_attributes = self.acceptable_attributes
- keymap = {}
- if not tag in self.acceptable_elements or self.svgOK:
- if tag in self.unacceptable_elements_with_end_tag:
- self.unacceptablestack += 1
- # add implicit namespaces to html5 inline svg/mathml
- if self._type.endswith('html'):
- if not dict(attrs).get('xmlns'):
- if tag=='svg':
- attrs.append( ('xmlns','http://www.w3.org/2000/svg') )
- if tag=='math':
- attrs.append( ('xmlns','http://www.w3.org/1998/Math/MathML') )
- # not otherwise acceptable, perhaps it is MathML or SVG?
- if tag=='math' and ('xmlns','http://www.w3.org/1998/Math/MathML') in attrs:
- self.mathmlOK += 1
- if tag=='svg' and ('xmlns','http://www.w3.org/2000/svg') in attrs:
- self.svgOK += 1
- # chose acceptable attributes based on tag class, else bail
- if self.mathmlOK and tag in self.mathml_elements:
- acceptable_attributes = self.mathml_attributes
- elif self.svgOK and tag in self.svg_elements:
- # for most vocabularies, lowercasing is a good idea. Many
- # svg elements, however, are camel case
- if not self.svg_attr_map:
- lower=[attr.lower() for attr in self.svg_attributes]
- mix=[a for a in self.svg_attributes if a not in lower]
- self.svg_attributes = lower
- self.svg_attr_map = dict([(a.lower(),a) for a in mix])
- lower=[attr.lower() for attr in self.svg_elements]
- mix=[a for a in self.svg_elements if a not in lower]
- self.svg_elements = lower
- self.svg_elem_map = dict([(a.lower(),a) for a in mix])
- acceptable_attributes = self.svg_attributes
- tag = self.svg_elem_map.get(tag,tag)
- keymap = self.svg_attr_map
- elif not tag in self.acceptable_elements:
- return
- # declare xlink namespace, if needed
- if self.mathmlOK or self.svgOK:
- if filter(lambda (n,v): n.startswith('xlink:'),attrs):
- if not ('xmlns:xlink','http://www.w3.org/1999/xlink') in attrs:
- attrs.append(('xmlns:xlink','http://www.w3.org/1999/xlink'))
- clean_attrs = []
- for key, value in self.normalize_attrs(attrs):
- if key in acceptable_attributes:
- key=keymap.get(key,key)
- # make sure the uri uses an acceptable uri scheme
- if key == u'href':
- value = _makeSafeAbsoluteURI(value)
- clean_attrs.append((key,value))
- elif key=='style':
- clean_value = self.sanitize_style(value)
- if clean_value:
- clean_attrs.append((key,clean_value))
- _BaseHTMLProcessor.unknown_starttag(self, tag, clean_attrs)
- def unknown_endtag(self, tag):
- if not tag in self.acceptable_elements:
- if tag in self.unacceptable_elements_with_end_tag:
- self.unacceptablestack -= 1
- if self.mathmlOK and tag in self.mathml_elements:
- if tag == 'math' and self.mathmlOK:
- self.mathmlOK -= 1
- elif self.svgOK and tag in self.svg_elements:
- tag = self.svg_elem_map.get(tag,tag)
- if tag == 'svg' and self.svgOK:
- self.svgOK -= 1
- else:
- return
- _BaseHTMLProcessor.unknown_endtag(self, tag)
- def handle_pi(self, text):
- pass
- def handle_decl(self, text):
- pass
- def handle_data(self, text):
- if not self.unacceptablestack:
- _BaseHTMLProcessor.handle_data(self, text)
- def sanitize_style(self, style):
- # disallow urls
- style=re.compile('url\s*\(\s*[^\s)]+?\s*\)\s*').sub(' ',style)
- # gauntlet
- if not re.match("""^([:,;#%.\sa-zA-Z0-9!]|\w-\w|'[\s\w]+'|"[\s\w]+"|\([\d,\s]+\))*$""", style):
- return ''
- # This replaced a regexp that used re.match and was prone to pathological back-tracking.
- if re.sub("\s*[-\w]+\s*:\s*[^:;]*;?", '', style).strip():
- return ''
- clean = []
- for prop,value in re.findall("([-\w]+)\s*:\s*([^:;]*)",style):
- if not value:
- continue
- if prop.lower() in self.acceptable_css_properties:
- clean.append(prop + ': ' + value + ';')
- elif prop.split('-')[0].lower() in ['background','border','margin','padding']:
- for keyword in value.split():
- if not keyword in self.acceptable_css_keywords and \
- not self.valid_css_values.match(keyword):
- break
- else:
- clean.append(prop + ': ' + value + ';')
- elif self.svgOK and prop.lower() in self.acceptable_svg_properties:
- clean.append(prop + ': ' + value + ';')
- return ' '.join(clean)
- def parse_comment(self, i, report=1):
- ret = _BaseHTMLProcessor.parse_comment(self, i, report)
- if ret >= 0:
- return ret
- # if ret == -1, this may be a malicious attempt to circumvent
- # sanitization, or a page-destroying unclosed comment
- match = re.compile(r'--[^>]*>').search(self.rawdata, i+4)
- if match:
- return match.end()
- # unclosed comment; deliberately fail to handle_data()
- return len(self.rawdata)
- def _sanitizeHTML(htmlSource, encoding, _type):
- if not _SGML_AVAILABLE:
- return htmlSource
- p = _HTMLSanitizer(encoding, _type)
- htmlSource = htmlSource.replace('<![CDATA[', '<![CDATA[')
- p.feed(htmlSource)
- data = p.output()
- data = data.strip().replace('\r\n', '\n')
- return data
- class _FeedURLHandler(urllib2.HTTPDigestAuthHandler, urllib2.HTTPRedirectHandler, urllib2.HTTPDefaultErrorHandler):
- def http_error_default(self, req, fp, code, msg, headers):
- # The default implementation just raises HTTPError.
- # Forget that.
- fp.status = code
- return fp
- def http_error_301(self, req, fp, code, msg, hdrs):
- result = urllib2.HTTPRedirectHandler.http_error_301(self, req, fp,
- code, msg, hdrs)
- result.status = code
- result.newurl = result.geturl()
- return result
- # The default implementations in urllib2.HTTPRedirectHandler
- # are identical, so hardcoding a http_error_301 call above
- # won't affect anything
- http_error_300 = http_error_301
- http_error_302 = http_error_301
- http_error_303 = http_error_301
- http_error_307 = http_error_301
- def http_error_401(self, req, fp, code, msg, headers):
- # Check if
- # - server requires digest auth, AND
- # - we tried (unsuccessfully) with basic auth, AND
- # If all conditions hold, parse authentication information
- # out of the Authorization header we sent the first time
- # (for the username and password) and the WWW-Authenticate
- # header the server sent back (for the realm) and retry
- # the request with the appropriate digest auth headers instead.
- # This evil genius hack has been brought to you by Aaron Swartz.
- host = urlparse.urlparse(req.get_full_url())[1]
- if base64 is None or 'Authorization' not in req.headers \
- or 'WWW-Authenticate' not in headers:
- return self.http_error_default(req, fp, code, msg, headers)
- auth = _base64decode(req.headers['Authorization'].split(' ')[1])
- user, passw = auth.split(':')
- realm = re.findall('realm="([^"]*)"', headers['WWW-Authenticate'])[0]
- self.add_password(realm, host, user, passw)
- retry = self.http_error_auth_reqed('www-authenticate', host, req, headers)
- self.reset_retry_count()
- return retry
- def _open_resource(url_file_stream_or_string, etag, modified, agent, referrer, handlers, request_headers, timeout=None):
- """URL, filename, or string --> stream
- This function lets you define parsers that take any input source
- (URL, pathname to local or network file, or actual data as a string)
- and deal with it in a uniform manner. Returned object is guaranteed
- to have all the basic stdio read methods (read, readline, readlines).
- Just .close() the object when you're done with it.
- If the etag argument is supplied, it will be used as the value of an
- If-None-Match request header.
- If the modified argument is supplied, it can be a tuple of 9 integers
- (as returned by gmtime() in the standard Python time module) or a date
- string in any format supported by feedparser. Regardless, it MUST
- be in GMT (Greenwich Mean Time). It will be reformatted into an
- RFC 1123-compliant date and used as the value of an If-Modified-Since
- request header.
- If the agent argument is supplied, it will be used as the value of a
- User-Agent request header.
- If the referrer argument is supplied, it will be used as the value of a
- Referer[sic] request header.
- If handlers is supplied, it is a list of handlers used to build a
- urllib2 opener.
- if request_headers is supplied it is a dictionary of HTTP request headers
- that will override the values generated by FeedParser.
- :return: A :class:`StringIO.StringIO` or :class:`io.BytesIO`.
- """
- if hasattr(url_file_stream_or_string, 'read'):
- return url_file_stream_or_string
- if isinstance(url_file_stream_or_string, basestring) \
- and urlparse.urlparse(url_file_stream_or_string)[0] in ('http', 'https', 'ftp', 'file', 'feed'):
- # Deal with the feed URI scheme
- if url_file_stream_or_string.startswith('feed:http'):
- url_file_stream_or_string = url_file_stream_or_string[5:]
- elif url_file_stream_or_string.startswith('feed:'):
- url_file_stream_or_string = 'http:' + url_file_stream_or_string[5:]
- if not agent:
- agent = USER_AGENT
- # Test for inline user:password credentials for HTTP basic auth
- auth = None
- if base64 and not url_file_stream_or_string.startswith('ftp:'):
- urltype, rest = urllib.splittype(url_file_stream_or_string)
- realhost, rest = urllib.splithost(rest)
- if realhost:
- user_passwd, realhost = urllib.splituser(realhost)
- if user_passwd:
- url_file_stream_or_string = '%s://%s%s' % (urltype, realhost, rest)
- auth = base64.standard_b64encode(user_passwd).strip()
- # iri support
- if isinstance(url_file_stream_or_string, unicode):
- url_file_stream_or_string = _convert_to_idn(url_file_stream_or_string)
- # try to open with urllib2 (to use optional headers)
- request = _build_urllib2_request(url_file_stream_or_string, agent, etag, modified, referrer, auth, request_headers)
- opener = urllib2.build_opener(*tuple(handlers + [_FeedURLHandler()]))
- opener.addheaders = [] # RMK - must clear so we only send our custom User-Agent
- try:
- return opener.open(request, timeout=timeout)
- finally:
- opener.close() # JohnD
- # try to open with native open function (if url_file_stream_or_string is a filename)
- try:
- return open(url_file_stream_or_string, 'rb')
- except (IOError, UnicodeEncodeError, TypeError):
- # if url_file_stream_or_string is a unicode object that
- # cannot be converted to the encoding returned by
- # sys.getfilesystemencoding(), a UnicodeEncodeError
- # will be thrown
- # If url_file_stream_or_string is a string that contains NULL
- # (such as an XML document encoded in UTF-32), TypeError will
- # be thrown.
- pass
- # treat url_file_stream_or_string as string
- if isinstance(url_file_stream_or_string, unicode):
- return _StringIO(url_file_stream_or_string.encode('utf-8'))
- return _StringIO(url_file_stream_or_string)
- def _convert_to_idn(url):
- """Convert a URL to IDN notation"""
- # this function should only be called with a unicode string
- # strategy: if the host cannot be encoded in ascii, then
- # it'll be necessary to encode it in idn form
- parts = list(urlparse.urlsplit(url))
- try:
- parts[1].encode('ascii')
- except UnicodeEncodeError:
- # the url needs to be converted to idn notation
- host = parts[1].rsplit(':', 1)
- newhost = []
- port = u''
- if len(host) == 2:
- port = host.pop()
- for h in host[0].split('.'):
- newhost.append(h.encode('idna').decode('utf-8'))
- parts[1] = '.'.join(newhost)
- if port:
- parts[1] += ':' + port
- return urlparse.urlunsplit(parts)
- else:
- return url
- def _build_urllib2_request(url, agent, etag, modified, referrer, auth, request_headers):
- request = urllib2.Request(url)
- request.add_header('User-Agent', agent)
- if etag:
- request.add_header('If-None-Match', etag)
- if isinstance(modified, basestring):
- modified = _parse_date(modified)
- elif isinstance(modified, datetime.datetime):
- modified = modified.utctimetuple()
- if modified:
- # format into an RFC 1123-compliant timestamp. We can't use
- # time.strftime() since the %a and %b directives can be affected
- # by the current locale, but RFC 2616 states that dates must be
- # in English.
- short_weekdays = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
- months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
- request.add_header('If-Modified-Since', '%s, %02d %s %04d %02d:%02d:%02d GMT' % (short_weekdays[modified[6]], modified[2], months[modified[1] - 1], modified[0], modified[3], modified[4], modified[5]))
- if referrer:
- request.add_header('Referer', referrer)
- if gzip and zlib:
- request.add_header('Accept-encoding', 'gzip, deflate')
- elif gzip:
- request.add_header('Accept-encoding', 'gzip')
- elif zlib:
- request.add_header('Accept-encoding', 'deflate')
- else:
- request.add_header('Accept-encoding', '')
- if auth:
- request.add_header('Authorization', 'Basic %s' % auth)
- if ACCEPT_HEADER:
- request.add_header('Accept', ACCEPT_HEADER)
- # use this for whatever -- cookies, special headers, etc
- # [('Cookie','Something'),('x-special-header','Another Value')]
- for header_name, header_value in request_headers.items():
- request.add_header(header_name, header_value)
- request.add_header('A-IM', 'feed') # RFC 3229 support
- return request
- def _parse_psc_chapter_start(start):
- FORMAT = r'^((\d{2}):)?(\d{2}):(\d{2})(\.(\d{3}))?$'
- m = re.compile(FORMAT).match(start)
- if m is None:
- return None
- _, h, m, s, _, ms = m.groups()
- h, m, s, ms = (int(h or 0), int(m), int(s), int(ms or 0))
- return datetime.timedelta(0, h*60*60 + m*60 + s, ms*1000)
- _date_handlers = []
- def registerDateHandler(func):
- '''Register a date handler function (takes string, returns 9-tuple date in GMT)'''
- _date_handlers.insert(0, func)
- # ISO-8601 date parsing routines written by Fazal Majid.
- # The ISO 8601 standard is very convoluted and irregular - a full ISO 8601
- # parser is beyond the scope of feedparser and would be a worthwhile addition
- # to the Python library.
- # A single regular expression cannot parse ISO 8601 date formats into groups
- # as the standard is highly irregular (for instance is 030104 2003-01-04 or
- # 0301-04-01), so we use templates instead.
- # Please note the order in templates is significant because we need a
- # greedy match.
- _iso8601_tmpl = ['YYYY-?MM-?DD', 'YYYY-0MM?-?DD', 'YYYY-MM', 'YYYY-?OOO',
- 'YY-?MM-?DD', 'YY-?OOO', 'YYYY',
- '-YY-?MM', '-OOO', '-YY',
- '--MM-?DD', '--MM',
- '---DD',
- 'CC', '']
- _iso8601_re = [
- tmpl.replace(
- 'YYYY', r'(?P<year>\d{4})').replace(
- 'YY', r'(?P<year>\d\d)').replace(
- 'MM', r'(?P<month>[01]\d)').replace(
- 'DD', r'(?P<day>[0123]\d)').replace(
- 'OOO', r'(?P<ordinal>[0123]\d\d)').replace(
- 'CC', r'(?P<century>\d\d$)')
- + r'(T?(?P<hour>\d{2}):(?P<minute>\d{2})'
- + r'(:(?P<second>\d{2}))?'
- + r'(\.(?P<fracsecond>\d+))?'
- + r'(?P<tz>[+-](?P<tzhour>\d{2})(:(?P<tzmin>\d{2}))?|Z)?)?'
- for tmpl in _iso8601_tmpl]
- try:
- del tmpl
- except NameError:
- pass
- _iso8601_matches = [re.compile(regex).match for regex in _iso8601_re]
- try:
- del regex
- except NameError:
- pass
- def _parse_date_iso8601(dateString):
- '''Parse a variety of ISO-8601-compatible formats like 20040105'''
- m = None
- for _iso8601_match in _iso8601_matches:
- m = _iso8601_match(dateString)
- if m:
- break
- if not m:
- return
- if m.span() == (0, 0):
- return
- params = m.groupdict()
- ordinal = params.get('ordinal', 0)
- if ordinal:
- ordinal = int(ordinal)
- else:
- ordinal = 0
- year = params.get('year', '--')
- if not year or year == '--':
- year = time.gmtime()[0]
- elif len(year) == 2:
- # ISO 8601 assumes current century, i.e. 93 -> 2093, NOT 1993
- year = 100 * int(time.gmtime()[0] / 100) + int(year)
- else:
- year = int(year)
- month = params.get('month', '-')
- if not month or month == '-':
- # ordinals are NOT normalized by mktime, we simulate them
- # by setting month=1, day=ordinal
- if ordinal:
- month = 1
- else:
- month = time.gmtime()[1]
- month = int(month)
- day = params.get('day', 0)
- if not day:
- # see above
- if ordinal:
- day = ordinal
- elif params.get('century', 0) or \
- params.get('year', 0) or params.get('month', 0):
- day = 1
- else:
- day = time.gmtime()[2]
- else:
- day = int(day)
- # special case of the century - is the first year of the 21st century
- # 2000 or 2001 ? The debate goes on...
- if 'century' in params:
- year = (int(params['century']) - 1) * 100 + 1
- # in ISO 8601 most fields are optional
- for field in ['hour', 'minute', 'second', 'tzhour', 'tzmin']:
- if not params.get(field, None):
- params[field] = 0
- hour = int(params.get('hour', 0))
- minute = int(params.get('minute', 0))
- second = int(float(params.get('second', 0)))
- # weekday is normalized by mktime(), we can ignore it
- weekday = 0
- daylight_savings_flag = -1
- tm = [year, month, day, hour, minute, second, weekday,
- ordinal, daylight_savings_flag]
- # ISO 8601 time zone adjustments
- tz = params.get('tz')
- if tz and tz != 'Z':
- if tz[0] == '-':
- tm[3] += int(params.get('tzhour', 0))
- tm[4] += int(params.get('tzmin', 0))
- elif tz[0] == '+':
- tm[3] -= int(params.get('tzhour', 0))
- tm[4] -= int(params.get('tzmin', 0))
- else:
- return None
- # Python's time.mktime() is a wrapper around the ANSI C mktime(3c)
- # which is guaranteed to normalize d/m/y/h/m/s.
- # Many implementations have bugs, but we'll pretend they don't.
- return time.localtime(time.mktime(tuple(tm)))
- registerDateHandler(_parse_date_iso8601)
- # 8-bit date handling routines written by ytrewq1.
- _korean_year = u'\ub144' # b3e2 in euc-kr
- _korean_month = u'\uc6d4' # bff9 in euc-kr
- _korean_day = u'\uc77c' # c0cf in euc-kr
- _korean_am = u'\uc624\uc804' # bfc0 c0fc in euc-kr
- _korean_pm = u'\uc624\ud6c4' # bfc0 c8c4 in euc-kr
- _korean_onblog_date_re = \
- re.compile('(\d{4})%s\s+(\d{2})%s\s+(\d{2})%s\s+(\d{2}):(\d{2}):(\d{2})' % \
- (_korean_year, _korean_month, _korean_day))
- _korean_nate_date_re = \
- re.compile(u'(\d{4})-(\d{2})-(\d{2})\s+(%s|%s)\s+(\d{,2}):(\d{,2}):(\d{,2})' % \
- (_korean_am, _korean_pm))
- def _parse_date_onblog(dateString):
- '''Parse a string according to the OnBlog 8-bit date format'''
- m = _korean_onblog_date_re.match(dateString)
- if not m:
- return
- w3dtfdate = '%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s:%(second)s%(zonediff)s' % \
- {'year': m.group(1), 'month': m.group(2), 'day': m.group(3),\
- 'hour': m.group(4), 'minute': m.group(5), 'second': m.group(6),\
- 'zonediff': '+09:00'}
- return _parse_date_w3dtf(w3dtfdate)
- registerDateHandler(_parse_date_onblog)
- def _parse_date_nate(dateString):
- '''Parse a string according to the Nate 8-bit date format'''
- m = _korean_nate_date_re.match(dateString)
- if not m:
- return
- hour = int(m.group(5))
- ampm = m.group(4)
- if (ampm == _korean_pm):
- hour += 12
- hour = str(hour)
- if len(hour) == 1:
- hour = '0' + hour
- w3dtfdate = '%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s:%(second)s%(zonediff)s' % \
- {'year': m.group(1), 'month': m.group(2), 'day': m.group(3),\
- 'hour': hour, 'minute': m.group(6), 'second': m.group(7),\
- 'zonediff': '+09:00'}
- return _parse_date_w3dtf(w3dtfdate)
- registerDateHandler(_parse_date_nate)
- # Unicode strings for Greek date strings
- _greek_months = \
- { \
- u'\u0399\u03b1\u03bd': u'Jan', # c9e1ed in iso-8859-7
- u'\u03a6\u03b5\u03b2': u'Feb', # d6e5e2 in iso-8859-7
- u'\u039c\u03ac\u03ce': u'Mar', # ccdcfe in iso-8859-7
- u'\u039c\u03b1\u03ce': u'Mar', # cce1fe in iso-8859-7
- u'\u0391\u03c0\u03c1': u'Apr', # c1f0f1 in iso-8859-7
- u'\u039c\u03ac\u03b9': u'May', # ccdce9 in iso-8859-7
- u'\u039c\u03b1\u03ca': u'May', # cce1fa in iso-8859-7
- u'\u039c\u03b1\u03b9': u'May', # cce1e9 in iso-8859-7
- u'\u0399\u03bf\u03cd\u03bd': u'Jun', # c9effded in iso-8859-7
- u'\u0399\u03bf\u03bd': u'Jun', # c9efed in iso-8859-7
- u'\u0399\u03bf\u03cd\u03bb': u'Jul', # c9effdeb in iso-8859-7
- u'\u0399\u03bf\u03bb': u'Jul', # c9f9eb in iso-8859-7
- u'\u0391\u03cd\u03b3': u'Aug', # c1fde3 in iso-8859-7
- u'\u0391\u03c5\u03b3': u'Aug', # c1f5e3 in iso-8859-7
- u'\u03a3\u03b5\u03c0': u'Sep', # d3e5f0 in iso-8859-7
- u'\u039f\u03ba\u03c4': u'Oct', # cfeaf4 in iso-8859-7
- u'\u039d\u03bf\u03ad': u'Nov', # cdefdd in iso-8859-7
- u'\u039d\u03bf\u03b5': u'Nov', # cdefe5 in iso-8859-7
- u'\u0394\u03b5\u03ba': u'Dec', # c4e5ea in iso-8859-7
- }
- _greek_wdays = \
- { \
- u'\u039a\u03c5\u03c1': u'Sun', # caf5f1 in iso-8859-7
- u'\u0394\u03b5\u03c5': u'Mon', # c4e5f5 in iso-8859-7
- u'\u03a4\u03c1\u03b9': u'Tue', # d4f1e9 in iso-8859-7
- u'\u03a4\u03b5\u03c4': u'Wed', # d4e5f4 in iso-8859-7
- u'\u03a0\u03b5\u03bc': u'Thu', # d0e5ec in iso-8859-7
- u'\u03a0\u03b1\u03c1': u'Fri', # d0e1f1 in iso-8859-7
- u'\u03a3\u03b1\u03b2': u'Sat', # d3e1e2 in iso-8859-7
- }
- _greek_date_format_re = \
- re.compile(u'([^,]+),\s+(\d{2})\s+([^\s]+)\s+(\d{4})\s+(\d{2}):(\d{2}):(\d{2})\s+([^\s]+)')
- def _parse_date_greek(dateString):
- '''Parse a string according to a Greek 8-bit date format.'''
- m = _greek_date_format_re.match(dateString)
- if not m:
- return
- wday = _greek_wdays[m.group(1)]
- month = _greek_months[m.group(3)]
- rfc822date = '%(wday)s, %(day)s %(month)s %(year)s %(hour)s:%(minute)s:%(second)s %(zonediff)s' % \
- {'wday': wday, 'day': m.group(2), 'month': month, 'year': m.group(4),\
- 'hour': m.group(5), 'minute': m.group(6), 'second': m.group(7),\
- 'zonediff': m.group(8)}
- return _parse_date_rfc822(rfc822date)
- registerDateHandler(_parse_date_greek)
- # Unicode strings for Hungarian date strings
- _hungarian_months = \
- { \
- u'janu\u00e1r': u'01', # e1 in iso-8859-2
- u'febru\u00e1ri': u'02', # e1 in iso-8859-2
- u'm\u00e1rcius': u'03', # e1 in iso-8859-2
- u'\u00e1prilis': u'04', # e1 in iso-8859-2
- u'm\u00e1ujus': u'05', # e1 in iso-8859-2
- u'j\u00fanius': u'06', # fa in iso-8859-2
- u'j\u00falius': u'07', # fa in iso-8859-2
- u'augusztus': u'08',
- u'szeptember': u'09',
- u'okt\u00f3ber': u'10', # f3 in iso-8859-2
- u'november': u'11',
- u'december': u'12',
- }
- _hungarian_date_format_re = \
- re.compile(u'(\d{4})-([^-]+)-(\d{,2})T(\d{,2}):(\d{2})((\+|-)(\d{,2}:\d{2}))')
- def _parse_date_hungarian(dateString):
- '''Parse a string according to a Hungarian 8-bit date format.'''
- m = _hungarian_date_format_re.match(dateString)
- if not m or m.group(2) not in _hungarian_months:
- return None
- month = _hungarian_months[m.group(2)]
- day = m.group(3)
- if len(day) == 1:
- day = '0' + day
- hour = m.group(4)
- if len(hour) == 1:
- hour = '0' + hour
- w3dtfdate = '%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s%(zonediff)s' % \
- {'year': m.group(1), 'month': month, 'day': day,\
- 'hour': hour, 'minute': m.group(5),\
- 'zonediff': m.group(6)}
- return _parse_date_w3dtf(w3dtfdate)
- registerDateHandler(_parse_date_hungarian)
- timezonenames = {
- 'ut': 0, 'gmt': 0, 'z': 0,
- 'adt': -3, 'ast': -4, 'at': -4,
- 'edt': -4, 'est': -5, 'et': -5,
- 'cdt': -5, 'cst': -6, 'ct': -6,
- 'mdt': -6, 'mst': -7, 'mt': -7,
- 'pdt': -7, 'pst': -8, 'pt': -8,
- 'a': -1, 'n': 1,
- 'm': -12, 'y': 12,
- }
- # W3 date and time format parser
- # http://www.w3.org/TR/NOTE-datetime
- # Also supports MSSQL-style datetimes as defined at:
- # http://msdn.microsoft.com/en-us/library/ms186724.aspx
- # (basically, allow a space as a date/time/timezone separator)
- def _parse_date_w3dtf(datestr):
- if not datestr.strip():
- return None
- parts = datestr.lower().split('t')
- if len(parts) == 1:
- # This may be a date only, or may be an MSSQL-style date
- parts = parts[0].split()
- if len(parts) == 1:
- # Treat this as a date only
- parts.append('00:00:00z')
- elif len(parts) > 2:
- return None
- date = parts[0].split('-', 2)
- if not date or len(date[0]) != 4:
- return None
- # Ensure that `date` has 3 elements. Using '1' sets the default
- # month to January and the default day to the 1st of the month.
- date.extend(['1'] * (3 - len(date)))
- try:
- year, month, day = [int(i) for i in date]
- except ValueError:
- # `date` may have more than 3 elements or may contain
- # non-integer strings.
- return None
- if parts[1].endswith('z'):
- parts[1] = parts[1][:-1]
- parts.append('z')
- # Append the numeric timezone offset, if any, to parts.
- # If this is an MSSQL-style date then parts[2] already contains
- # the timezone information, so `append()` will not affect it.
- # Add 1 to each value so that if `find()` returns -1 it will be
- # treated as False.
- loc = parts[1].find('-') + 1 or parts[1].find('+') + 1 or len(parts[1]) + 1
- loc = loc - 1
- parts.append(parts[1][loc:])
- parts[1] = parts[1][:loc]
- time = parts[1].split(':', 2)
- # Ensure that time has 3 elements. Using '0' means that the
- # minutes and seconds, if missing, will default to 0.
- time.extend(['0'] * (3 - len(time)))
- tzhour = 0
- tzmin = 0
- if parts[2][:1] in ('-', '+'):
- try:
- tzhour = int(parts[2][1:3])
- tzmin = int(parts[2][4:])
- except ValueError:
- return None
- if parts[2].startswith('-'):
- tzhour = tzhour * -1
- tzmin = tzmin * -1
- else:
- tzhour = timezonenames.get(parts[2], 0)
- try:
- hour, minute, second = [int(float(i)) for i in time]
- except ValueError:
- return None
- # Create the datetime object and timezone delta objects
- try:
- stamp = datetime.datetime(year, month, day, hour, minute, second)
- except ValueError:
- return None
- delta = datetime.timedelta(0, 0, 0, 0, tzmin, tzhour)
- # Return the date and timestamp in a UTC 9-tuple
- try:
- return (stamp - delta).utctimetuple()
- except (OverflowError, ValueError):
- # IronPython throws ValueErrors instead of OverflowErrors
- return None
- registerDateHandler(_parse_date_w3dtf)
- def _parse_date_rfc822(date):
- """Parse RFC 822 dates and times
- http://tools.ietf.org/html/rfc822#section-5
- There are some formatting differences that are accounted for:
- 1. Years may be two or four digits.
- 2. The month and day can be swapped.
- 3. Additional timezone names are supported.
- 4. A default time and timezone are assumed if only a date is present.
- """
- daynames = set(['mon', 'tue', 'wed', 'thu', 'fri', 'sat', 'sun'])
- months = {
- 'jan': 1, 'feb': 2, 'mar': 3, 'apr': 4, 'may': 5, 'jun': 6,
- 'jul': 7, 'aug': 8, 'sep': 9, 'oct': 10, 'nov': 11, 'dec': 12,
- }
- parts = date.lower().split()
- if len(parts) < 5:
- # Assume that the time and timezone are missing
- parts.extend(('00:00:00', '0000'))
- # Remove the day name
- if parts[0][:3] in daynames:
- parts = parts[1:]
- if len(parts) < 5:
- # If there are still fewer than five parts, there's not enough
- # information to interpret this
- return None
- try:
- day = int(parts[0])
- except ValueError:
- # Check if the day and month are swapped
- if months.get(parts[0][:3]):
- try:
- day = int(parts[1])
- except ValueError:
- return None
- else:
- parts[1] = parts[0]
- else:
- return None
- month = months.get(parts[1][:3])
- if not month:
- return None
- try:
- year = int(parts[2])
- except ValueError:
- return None
- # Normalize two-digit years:
- # Anything in the 90's is interpreted as 1990 and on
- # Anything 89 or less is interpreted as 2089 or before
- if len(parts[2]) <= 2:
- year += (1900, 2000)[year < 90]
- timeparts = parts[3].split(':')
- timeparts = timeparts + ([0] * (3 - len(timeparts)))
- try:
- (hour, minute, second) = map(int, timeparts)
- except ValueError:
- return None
- tzhour = 0
- tzmin = 0
- # Strip 'Etc/' from the timezone
- if parts[4].startswith('etc/'):
- parts[4] = parts[4][4:]
- # Normalize timezones that start with 'gmt':
- # GMT-05:00 => -0500
- # GMT => GMT
- if parts[4].startswith('gmt'):
- parts[4] = ''.join(parts[4][3:].split(':')) or 'gmt'
- # Handle timezones like '-0500', '+0500', and 'EST'
- if parts[4] and parts[4][0] in ('-', '+'):
- try:
- tzhour = int(parts[4][1:3])
- tzmin = int(parts[4][3:])
- except ValueError:
- return None
- if parts[4].startswith('-'):
- tzhour = tzhour * -1
- tzmin = tzmin * -1
- else:
- tzhour = timezonenames.get(parts[4], 0)
- # Create the datetime object and timezone delta objects
- try:
- stamp = datetime.datetime(year, month, day, hour, minute, second)
- except ValueError:
- return None
- delta = datetime.timedelta(0, 0, 0, 0, tzmin, tzhour)
- # Return the date and timestamp in a UTC 9-tuple
- try:
- return (stamp - delta).utctimetuple()
- except (OverflowError, ValueError):
- # IronPython throws ValueErrors instead of OverflowErrors
- return None
- registerDateHandler(_parse_date_rfc822)
- _months = ['jan', 'feb', 'mar', 'apr', 'may', 'jun',
- 'jul', 'aug', 'sep', 'oct', 'nov', 'dec']
- def _parse_date_asctime(dt):
- """Parse asctime-style dates.
- Converts asctime to RFC822-compatible dates and uses the RFC822 parser
- to do the actual parsing.
- Supported formats (format is standardized to the first one listed):
- * {weekday name} {month name} dd hh:mm:ss {+-tz} yyyy
- * {weekday name} {month name} dd hh:mm:ss yyyy
- """
- parts = dt.split()
- # Insert a GMT timezone, if needed.
- if len(parts) == 5:
- parts.insert(4, '+0000')
- # Exit if there are not six parts.
- if len(parts) != 6:
- return None
- # Reassemble the parts in an RFC822-compatible order and parse them.
- return _parse_date_rfc822(' '.join([
- parts[0], parts[2], parts[1], parts[5], parts[3], parts[4],
- ]))
- registerDateHandler(_parse_date_asctime)
- def _parse_date_perforce(aDateString):
- """parse a date in yyyy/mm/dd hh:mm:ss TTT format"""
- # Fri, 2006/09/15 08:19:53 EDT
- _my_date_pattern = re.compile( \
- r'(\w{,3}), (\d{,4})/(\d{,2})/(\d{2}) (\d{,2}):(\d{2}):(\d{2}) (\w{,3})')
- m = _my_date_pattern.search(aDateString)
- if m is None:
- return None
- dow, year, month, day, hour, minute, second, tz = m.groups()
- months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
- dateString = "%s, %s %s %s %s:%s:%s %s" % (dow, day, months[int(month) - 1], year, hour, minute, second, tz)
- tm = rfc822.parsedate_tz(dateString)
- if tm:
- return time.gmtime(rfc822.mktime_tz(tm))
- registerDateHandler(_parse_date_perforce)
- def _parse_date(dateString):
- '''Parses a variety of date formats into a 9-tuple in GMT'''
- if not dateString:
- return None
- for handler in _date_handlers:
- try:
- date9tuple = handler(dateString)
- except (KeyError, OverflowError, ValueError):
- continue
- if not date9tuple:
- continue
- if len(date9tuple) != 9:
- continue
- return date9tuple
- return None
- # Each marker represents some of the characters of the opening XML
- # processing instruction ('<?xm') in the specified encoding.
- EBCDIC_MARKER = _l2bytes([0x4C, 0x6F, 0xA7, 0x94])
- UTF16BE_MARKER = _l2bytes([0x00, 0x3C, 0x00, 0x3F])
- UTF16LE_MARKER = _l2bytes([0x3C, 0x00, 0x3F, 0x00])
- UTF32BE_MARKER = _l2bytes([0x00, 0x00, 0x00, 0x3C])
- UTF32LE_MARKER = _l2bytes([0x3C, 0x00, 0x00, 0x00])
- ZERO_BYTES = _l2bytes([0x00, 0x00])
- # Match the opening XML declaration.
- # Example: <?xml version="1.0" encoding="utf-8"?>
- RE_XML_DECLARATION = re.compile('^<\?xml[^>]*?>')
- # Capture the value of the XML processing instruction's encoding attribute.
- # Example: <?xml version="1.0" encoding="utf-8"?>
- RE_XML_PI_ENCODING = re.compile(_s2bytes('^<\?.*encoding=[\'"](.*?)[\'"].*\?>'))
- def convert_to_utf8(http_headers, data):
- '''Detect and convert the character encoding to UTF-8.
- http_headers is a dictionary
- data is a raw string (not Unicode)'''
- # This is so much trickier than it sounds, it's not even funny.
- # According to RFC 3023 ('XML Media Types'), if the HTTP Content-Type
- # is application/xml, application/*+xml,
- # application/xml-external-parsed-entity, or application/xml-dtd,
- # the encoding given in the charset parameter of the HTTP Content-Type
- # takes precedence over the encoding given in the XML prefix within the
- # document, and defaults to 'utf-8' if neither are specified. But, if
- # the HTTP Content-Type is text/xml, text/*+xml, or
- # text/xml-external-parsed-entity, the encoding given in the XML prefix
- # within the document is ALWAYS IGNORED and only the encoding given in
- # the charset parameter of the HTTP Content-Type header should be
- # respected, and it defaults to 'us-ascii' if not specified.
- # Furthermore, discussion on the atom-syntax mailing list with the
- # author of RFC 3023 leads me to the conclusion that any document
- # served with a Content-Type of text/* and no charset parameter
- # must be treated as us-ascii. (We now do this.) And also that it
- # must always be flagged as non-well-formed. (We now do this too.)
- # If Content-Type is unspecified (input was local file or non-HTTP source)
- # or unrecognized (server just got it totally wrong), then go by the
- # encoding given in the XML prefix of the document and default to
- # 'iso-8859-1' as per the HTTP specification (RFC 2616).
- # Then, assuming we didn't find a character encoding in the HTTP headers
- # (and the HTTP Content-type allowed us to look in the body), we need
- # to sniff the first few bytes of the XML data and try to determine
- # whether the encoding is ASCII-compatible. Section F of the XML
- # specification shows the way here:
- # http://www.w3.org/TR/REC-xml/#sec-guessing-no-ext-info
- # If the sniffed encoding is not ASCII-compatible, we need to make it
- # ASCII compatible so that we can sniff further into the XML declaration
- # to find the encoding attribute, which will tell us the true encoding.
- # Of course, none of this guarantees that we will be able to parse the
- # feed in the declared character encoding (assuming it was declared
- # correctly, which many are not). iconv_codec can help a lot;
- # you should definitely install it if you can.
- # http://cjkpython.i18n.org/
- bom_encoding = u''
- xml_encoding = u''
- rfc3023_encoding = u''
- # Look at the first few bytes of the document to guess what
- # its encoding may be. We only need to decode enough of the
- # document that we can use an ASCII-compatible regular
- # expression to search for an XML encoding declaration.
- # The heuristic follows the XML specification, section F:
- # http://www.w3.org/TR/REC-xml/#sec-guessing-no-ext-info
- # Check for BOMs first.
- if data[:4] == codecs.BOM_UTF32_BE:
- bom_encoding = u'utf-32be'
- data = data[4:]
- elif data[:4] == codecs.BOM_UTF32_LE:
- bom_encoding = u'utf-32le'
- data = data[4:]
- elif data[:2] == codecs.BOM_UTF16_BE and data[2:4] != ZERO_BYTES:
- bom_encoding = u'utf-16be'
- data = data[2:]
- elif data[:2] == codecs.BOM_UTF16_LE and data[2:4] != ZERO_BYTES:
- bom_encoding = u'utf-16le'
- data = data[2:]
- elif data[:3] == codecs.BOM_UTF8:
- bom_encoding = u'utf-8'
- data = data[3:]
- # Check for the characters '<?xm' in several encodings.
- elif data[:4] == EBCDIC_MARKER:
- bom_encoding = u'cp037'
- elif data[:4] == UTF16BE_MARKER:
- bom_encoding = u'utf-16be'
- elif data[:4] == UTF16LE_MARKER:
- bom_encoding = u'utf-16le'
- elif data[:4] == UTF32BE_MARKER:
- bom_encoding = u'utf-32be'
- elif data[:4] == UTF32LE_MARKER:
- bom_encoding = u'utf-32le'
- tempdata = data
- try:
- if bom_encoding:
- tempdata = data.decode(bom_encoding).encode('utf-8')
- except (UnicodeDecodeError, LookupError):
- # feedparser recognizes UTF-32 encodings that aren't
- # available in Python 2.4 and 2.5, so it's possible to
- # encounter a LookupError during decoding.
- xml_encoding_match = None
- else:
- xml_encoding_match = RE_XML_PI_ENCODING.match(tempdata)
- if xml_encoding_match:
- xml_encoding = xml_encoding_match.groups()[0].decode('utf-8').lower()
- # Normalize the xml_encoding if necessary.
- if bom_encoding and (xml_encoding in (
- u'u16', u'utf-16', u'utf16', u'utf_16',
- u'u32', u'utf-32', u'utf32', u'utf_32',
- u'iso-10646-ucs-2', u'iso-10646-ucs-4',
- u'csucs4', u'csunicode', u'ucs-2', u'ucs-4'
- )):
- xml_encoding = bom_encoding
- # Find the HTTP Content-Type and, hopefully, a character
- # encoding provided by the server. The Content-Type is used
- # to choose the "correct" encoding among the BOM encoding,
- # XML declaration encoding, and HTTP encoding, following the
- # heuristic defined in RFC 3023.
- http_content_type = http_headers.get('content-type') or ''
- http_content_type, params = cgi.parse_header(http_content_type)
- http_encoding = params.get('charset', '').replace("'", "")
- if not isinstance(http_encoding, unicode):
- http_encoding = http_encoding.decode('utf-8', 'ignore')
- acceptable_content_type = 0
- application_content_types = (u'application/xml', u'application/xml-dtd',
- u'application/xml-external-parsed-entity')
- text_content_types = (u'text/xml', u'text/xml-external-parsed-entity')
- if (http_content_type in application_content_types) or \
- (http_content_type.startswith(u'application/') and
- http_content_type.endswith(u'+xml')):
- acceptable_content_type = 1
- rfc3023_encoding = http_encoding or xml_encoding or u'utf-8'
- elif (http_content_type in text_content_types) or \
- (http_content_type.startswith(u'text/') and
- http_content_type.endswith(u'+xml')):
- acceptable_content_type = 1
- rfc3023_encoding = http_encoding or u'us-ascii'
- elif http_content_type.startswith(u'text/'):
- rfc3023_encoding = http_encoding or u'us-ascii'
- elif http_headers and 'content-type' not in http_headers:
- rfc3023_encoding = xml_encoding or u'iso-8859-1'
- else:
- rfc3023_encoding = xml_encoding or u'utf-8'
- # gb18030 is a superset of gb2312, so always replace gb2312
- # with gb18030 for greater compatibility.
- if rfc3023_encoding.lower() == u'gb2312':
- rfc3023_encoding = u'gb18030'
- if xml_encoding.lower() == u'gb2312':
- xml_encoding = u'gb18030'
- # there are four encodings to keep track of:
- # - http_encoding is the encoding declared in the Content-Type HTTP header
- # - xml_encoding is the encoding declared in the <?xml declaration
- # - bom_encoding is the encoding sniffed from the first 4 bytes of the XML data
- # - rfc3023_encoding is the actual encoding, as per RFC 3023 and a variety of other conflicting specifications
- error = None
- if http_headers and (not acceptable_content_type):
- if 'content-type' in http_headers:
- msg = '%s is not an XML media type' % http_headers['content-type']
- else:
- msg = 'no Content-type specified'
- error = NonXMLContentType(msg)
- # determine character encoding
- known_encoding = 0
- lazy_chardet_encoding = None
- tried_encodings = []
- if chardet:
- def lazy_chardet_encoding():
- chardet_encoding = chardet.detect(data)['encoding']
- if not chardet_encoding:
- chardet_encoding = ''
- if not isinstance(chardet_encoding, unicode):
- chardet_encoding = unicode(chardet_encoding, 'ascii', 'ignore')
- return chardet_encoding
- # try: HTTP encoding, declared XML encoding, encoding sniffed from BOM
- for proposed_encoding in (rfc3023_encoding, xml_encoding, bom_encoding,
- lazy_chardet_encoding, u'utf-8', u'windows-1252', u'iso-8859-2'):
- if callable(proposed_encoding):
- proposed_encoding = proposed_encoding()
- if not proposed_encoding:
- continue
- if proposed_encoding in tried_encodings:
- continue
- tried_encodings.append(proposed_encoding)
- try:
- data = data.decode(proposed_encoding)
- except (UnicodeDecodeError, LookupError):
- pass
- else:
- known_encoding = 1
- # Update the encoding in the opening XML processing instruction.
- new_declaration = '''<?xml version='1.0' encoding='utf-8'?>'''
- if RE_XML_DECLARATION.search(data):
- data = RE_XML_DECLARATION.sub(new_declaration, data)
- else:
- data = new_declaration + u'\n' + data
- data = data.encode('utf-8')
- break
- # if still no luck, give up
- if not known_encoding:
- error = CharacterEncodingUnknown(
- 'document encoding unknown, I tried ' +
- '%s, %s, utf-8, windows-1252, and iso-8859-2 but nothing worked' %
- (rfc3023_encoding, xml_encoding))
- rfc3023_encoding = u''
- elif proposed_encoding != rfc3023_encoding:
- error = CharacterEncodingOverride(
- 'document declared as %s, but parsed as %s' %
- (rfc3023_encoding, proposed_encoding))
- rfc3023_encoding = proposed_encoding
- return data, rfc3023_encoding, error
- # Match XML entity declarations.
- # Example: <!ENTITY copyright "(C)">
- RE_ENTITY_PATTERN = re.compile(_s2bytes(r'^\s*<!ENTITY([^>]*?)>'), re.MULTILINE)
- # Match XML DOCTYPE declarations.
- # Example: <!DOCTYPE feed [ ]>
- RE_DOCTYPE_PATTERN = re.compile(_s2bytes(r'^\s*<!DOCTYPE([^>]*?)>'), re.MULTILINE)
- # Match safe entity declarations.
- # This will allow hexadecimal character references through,
- # as well as text, but not arbitrary nested entities.
- # Example: cubed "³"
- # Example: copyright "(C)"
- # Forbidden: explode1 "&explode2;&explode2;"
- RE_SAFE_ENTITY_PATTERN = re.compile(_s2bytes('\s+(\w+)\s+"(&#\w+;|[^&"]*)"'))
- def replace_doctype(data):
- '''Strips and replaces the DOCTYPE, returns (rss_version, stripped_data)
- rss_version may be 'rss091n' or None
- stripped_data is the same XML document with a replaced DOCTYPE
- '''
- # Divide the document into two groups by finding the location
- # of the first element that doesn't begin with '<?' or '<!'.
- start = re.search(_s2bytes('<\w'), data)
- start = start and start.start() or -1
- head, data = data[:start+1], data[start+1:]
- # Save and then remove all of the ENTITY declarations.
- entity_results = RE_ENTITY_PATTERN.findall(head)
- head = RE_ENTITY_PATTERN.sub(_s2bytes(''), head)
- # Find the DOCTYPE declaration and check the feed type.
- doctype_results = RE_DOCTYPE_PATTERN.findall(head)
- doctype = doctype_results and doctype_results[0] or _s2bytes('')
- if _s2bytes('netscape') in doctype.lower():
- version = u'rss091n'
- else:
- version = None
- # Re-insert the safe ENTITY declarations if a DOCTYPE was found.
- replacement = _s2bytes('')
- if len(doctype_results) == 1 and entity_results:
- match_safe_entities = lambda e: RE_SAFE_ENTITY_PATTERN.match(e)
- safe_entities = filter(match_safe_entities, entity_results)
- if safe_entities:
- replacement = _s2bytes('<!DOCTYPE feed [\n<!ENTITY') \
- + _s2bytes('>\n<!ENTITY ').join(safe_entities) \
- + _s2bytes('>\n]>')
- data = RE_DOCTYPE_PATTERN.sub(replacement, head) + data
- # Precompute the safe entities for the loose parser.
- safe_entities = dict((k.decode('utf-8'), v.decode('utf-8'))
- for k, v in RE_SAFE_ENTITY_PATTERN.findall(replacement))
- return version, data, safe_entities
- # GeoRSS geometry parsers. Each return a dict with 'type' and 'coordinates'
- # items, or None in the case of a parsing error.
- def _parse_poslist(value, geom_type, swap=True, dims=2):
- if geom_type == 'linestring':
- return _parse_georss_line(value, swap, dims)
- elif geom_type == 'polygon':
- ring = _parse_georss_line(value, swap, dims)
- return {'type': u'Polygon', 'coordinates': (ring['coordinates'],)}
- else:
- return None
- def _gen_georss_coords(value, swap=True, dims=2):
- # A generator of (lon, lat) pairs from a string of encoded GeoRSS
- # coordinates. Converts to floats and swaps order.
- latlons = itertools.imap(float, value.strip().replace(',', ' ').split())
- nxt = latlons.next
- while True:
- t = [nxt(), nxt()][::swap and -1 or 1]
- if dims == 3:
- t.append(nxt())
- yield tuple(t)
- def _parse_georss_point(value, swap=True, dims=2):
- # A point contains a single latitude-longitude pair, separated by
- # whitespace. We'll also handle comma separators.
- try:
- coords = list(_gen_georss_coords(value, swap, dims))
- return {u'type': u'Point', u'coordinates': coords[0]}
- except (IndexError, ValueError):
- return None
- def _parse_georss_line(value, swap=True, dims=2):
- # A line contains a space separated list of latitude-longitude pairs in
- # WGS84 coordinate reference system, with each pair separated by
- # whitespace. There must be at least two pairs.
- try:
- coords = list(_gen_georss_coords(value, swap, dims))
- return {u'type': u'LineString', u'coordinates': coords}
- except (IndexError, ValueError):
- return None
- def _parse_georss_polygon(value, swap=True, dims=2):
- # A polygon contains a space separated list of latitude-longitude pairs,
- # with each pair separated by whitespace. There must be at least four
- # pairs, with the last being identical to the first (so a polygon has a
- # minimum of three actual points).
- try:
- ring = list(_gen_georss_coords(value, swap, dims))
- except (IndexError, ValueError):
- return None
- if len(ring) < 4:
- return None
- return {u'type': u'Polygon', u'coordinates': (ring,)}
- def _parse_georss_box(value, swap=True, dims=2):
- # A bounding box is a rectangular region, often used to define the extents
- # of a map or a rough area of interest. A box contains two space seperate
- # latitude-longitude pairs, with each pair separated by whitespace. The
- # first pair is the lower corner, the second is the upper corner.
- try:
- coords = list(_gen_georss_coords(value, swap, dims))
- return {u'type': u'Box', u'coordinates': tuple(coords)}
- except (IndexError, ValueError):
- return None
- # end geospatial parsers
- def parse(url_file_stream_or_string, etag=None, modified=None, agent=None, referrer=None, handlers=None, request_headers=None, response_headers=None, timeout='Global'):
- '''Parse a feed from a URL, file, stream, or string.
- request_headers, if given, is a dict from http header name to value to add
- to the request; this overrides internally generated values.
- :return: A :class:`FeedParserDict`.
- '''
- if handlers is None:
- handlers = []
- if request_headers is None:
- request_headers = {}
- if response_headers is None:
- response_headers = {}
- if timeout == 'Global':
- import socket
- timeout = socket.getdefaulttimeout()
- result = FeedParserDict()
- result['feed'] = FeedParserDict()
- result['entries'] = []
- result['bozo'] = 0
- if not isinstance(handlers, list):
- handlers = [handlers]
- try:
- f = _open_resource(url_file_stream_or_string, etag, modified, agent, referrer, handlers, request_headers, timeout)
- data = f.read()
- except Exception, e:
- result['bozo'] = 1
- result['bozo_exception'] = e
- data = None
- f = None
- if hasattr(f, 'headers'):
- result['headers'] = dict(f.headers)
- # overwrite existing headers using response_headers
- if 'headers' in result:
- result['headers'].update(response_headers)
- elif response_headers:
- result['headers'] = copy.deepcopy(response_headers)
- # lowercase all of the HTTP headers for comparisons per RFC 2616
- if 'headers' in result:
- http_headers = dict((k.lower(), v) for k, v in result['headers'].items())
- else:
- http_headers = {}
- # if feed is gzip-compressed, decompress it
- if f and data and http_headers:
- if gzip and 'gzip' in http_headers.get('content-encoding', ''):
- try:
- data = gzip.GzipFile(fileobj=_StringIO(data)).read()
- except (IOError, struct.error), e:
- # IOError can occur if the gzip header is bad.
- # struct.error can occur if the data is damaged.
- result['bozo'] = 1
- result['bozo_exception'] = e
- if isinstance(e, struct.error):
- # A gzip header was found but the data is corrupt.
- # Ideally, we should re-request the feed without the
- # 'Accept-encoding: gzip' header, but we don't.
- data = None
- elif zlib and 'deflate' in http_headers.get('content-encoding', ''):
- try:
- data = zlib.decompress(data)
- except zlib.error, e:
- try:
- # The data may have no headers and no checksum.
- data = zlib.decompress(data, -15)
- except zlib.error, e:
- result['bozo'] = 1
- result['bozo_exception'] = e
- # save HTTP headers
- if http_headers:
- if 'etag' in http_headers:
- etag = http_headers.get('etag', u'')
- if not isinstance(etag, unicode):
- etag = etag.decode('utf-8', 'ignore')
- if etag:
- result['etag'] = etag
- if 'last-modified' in http_headers:
- modified = http_headers.get('last-modified', u'')
- if modified:
- result['modified'] = modified
- result['modified_parsed'] = _parse_date(modified)
- if hasattr(f, 'url'):
- if not isinstance(f.url, unicode):
- result['href'] = f.url.decode('utf-8', 'ignore')
- else:
- result['href'] = f.url
- result['status'] = 200
- if hasattr(f, 'status'):
- result['status'] = f.status
- if hasattr(f, 'close'):
- f.close()
- if data is None:
- return result
- # Stop processing if the server sent HTTP 304 Not Modified.
- if getattr(f, 'code', 0) == 304:
- result['version'] = u''
- result['debug_message'] = 'The feed has not changed since you last checked, ' + \
- 'so the server sent no data. This is a feature, not a bug!'
- return result
- data, result['encoding'], error = convert_to_utf8(http_headers, data)
- use_strict_parser = result['encoding'] and True or False
- if error is not None:
- result['bozo'] = 1
- result['bozo_exception'] = error
- result['version'], data, entities = replace_doctype(data)
- # Ensure that baseuri is an absolute URI using an acceptable URI scheme.
- contentloc = http_headers.get('content-location', u'')
- href = result.get('href', u'')
- baseuri = _makeSafeAbsoluteURI(href, contentloc) or _makeSafeAbsoluteURI(contentloc) or href
- baselang = http_headers.get('content-language', None)
- if not isinstance(baselang, unicode) and baselang is not None:
- baselang = baselang.decode('utf-8', 'ignore')
- if not _XML_AVAILABLE:
- use_strict_parser = 0
- if use_strict_parser:
- # initialize the SAX parser
- feedparser = _StrictFeedParser(baseuri, baselang, 'utf-8')
- saxparser = xml.sax.make_parser(PREFERRED_XML_PARSERS)
- saxparser.setFeature(xml.sax.handler.feature_namespaces, 1)
- try:
- # disable downloading external doctype references, if possible
- saxparser.setFeature(xml.sax.handler.feature_external_ges, 0)
- except xml.sax.SAXNotSupportedException:
- pass
- saxparser.setContentHandler(feedparser)
- saxparser.setErrorHandler(feedparser)
- source = xml.sax.xmlreader.InputSource()
- source.setByteStream(_StringIO(data))
- try:
- saxparser.parse(source)
- except xml.sax.SAXException, e:
- result['bozo'] = 1
- result['bozo_exception'] = feedparser.exc or e
- use_strict_parser = 0
- if not use_strict_parser and _SGML_AVAILABLE:
- feedparser = _LooseFeedParser(baseuri, baselang, 'utf-8', entities)
- feedparser.feed(data.decode('utf-8', 'replace'))
- result['feed'] = feedparser.feeddata
- result['entries'] = feedparser.entries
- result['version'] = result['version'] or feedparser.version
- result['namespaces'] = feedparser.namespacesInUse
- return result
- # The list of EPSG codes for geographic (latitude/longitude) coordinate
- # systems to support decoding of GeoRSS GML profiles.
- _geogCS = [
- 3819, 3821, 3824, 3889, 3906, 4001, 4002, 4003, 4004, 4005, 4006, 4007, 4008,
- 4009, 4010, 4011, 4012, 4013, 4014, 4015, 4016, 4018, 4019, 4020, 4021, 4022,
- 4023, 4024, 4025, 4027, 4028, 4029, 4030, 4031, 4032, 4033, 4034, 4035, 4036,
- 4041, 4042, 4043, 4044, 4045, 4046, 4047, 4052, 4053, 4054, 4055, 4075, 4081,
- 4120, 4121, 4122, 4123, 4124, 4125, 4126, 4127, 4128, 4129, 4130, 4131, 4132,
- 4133, 4134, 4135, 4136, 4137, 4138, 4139, 4140, 4141, 4142, 4143, 4144, 4145,
- 4146, 4147, 4148, 4149, 4150, 4151, 4152, 4153, 4154, 4155, 4156, 4157, 4158,
- 4159, 4160, 4161, 4162, 4163, 4164, 4165, 4166, 4167, 4168, 4169, 4170, 4171,
- 4172, 4173, 4174, 4175, 4176, 4178, 4179, 4180, 4181, 4182, 4183, 4184, 4185,
- 4188, 4189, 4190, 4191, 4192, 4193, 4194, 4195, 4196, 4197, 4198, 4199, 4200,
- 4201, 4202, 4203, 4204, 4205, 4206, 4207, 4208, 4209, 4210, 4211, 4212, 4213,
- 4214, 4215, 4216, 4218, 4219, 4220, 4221, 4222, 4223, 4224, 4225, 4226, 4227,
- 4228, 4229, 4230, 4231, 4232, 4233, 4234, 4235, 4236, 4237, 4238, 4239, 4240,
- 4241, 4242, 4243, 4244, 4245, 4246, 4247, 4248, 4249, 4250, 4251, 4252, 4253,
- 4254, 4255, 4256, 4257, 4258, 4259, 4260, 4261, 4262, 4263, 4264, 4265, 4266,
- 4267, 4268, 4269, 4270, 4271, 4272, 4273, 4274, 4275, 4276, 4277, 4278, 4279,
- 4280, 4281, 4282, 4283, 4284, 4285, 4286, 4287, 4288, 4289, 4291, 4292, 4293,
- 4294, 4295, 4296, 4297, 4298, 4299, 4300, 4301, 4302, 4303, 4304, 4306, 4307,
- 4308, 4309, 4310, 4311, 4312, 4313, 4314, 4315, 4316, 4317, 4318, 4319, 4322,
- 4324, 4326, 4463, 4470, 4475, 4483, 4490, 4555, 4558, 4600, 4601, 4602, 4603,
- 4604, 4605, 4606, 4607, 4608, 4609, 4610, 4611, 4612, 4613, 4614, 4615, 4616,
- 4617, 4618, 4619, 4620, 4621, 4622, 4623, 4624, 4625, 4626, 4627, 4628, 4629,
- 4630, 4631, 4632, 4633, 4634, 4635, 4636, 4637, 4638, 4639, 4640, 4641, 4642,
- 4643, 4644, 4645, 4646, 4657, 4658, 4659, 4660, 4661, 4662, 4663, 4664, 4665,
- 4666, 4667, 4668, 4669, 4670, 4671, 4672, 4673, 4674, 4675, 4676, 4677, 4678,
- 4679, 4680, 4681, 4682, 4683, 4684, 4685, 4686, 4687, 4688, 4689, 4690, 4691,
- 4692, 4693, 4694, 4695, 4696, 4697, 4698, 4699, 4700, 4701, 4702, 4703, 4704,
- 4705, 4706, 4707, 4708, 4709, 4710, 4711, 4712, 4713, 4714, 4715, 4716, 4717,
- 4718, 4719, 4720, 4721, 4722, 4723, 4724, 4725, 4726, 4727, 4728, 4729, 4730,
- 4731, 4732, 4733, 4734, 4735, 4736, 4737, 4738, 4739, 4740, 4741, 4742, 4743,
- 4744, 4745, 4746, 4747, 4748, 4749, 4750, 4751, 4752, 4753, 4754, 4755, 4756,
- 4757, 4758, 4759, 4760, 4761, 4762, 4763, 4764, 4765, 4801, 4802, 4803, 4804,
- 4805, 4806, 4807, 4808, 4809, 4810, 4811, 4813, 4814, 4815, 4816, 4817, 4818,
- 4819, 4820, 4821, 4823, 4824, 4901, 4902, 4903, 4904, 4979 ]