#!/usr/bin/env python """Universal feed parser Handles RSS 0.9x, RSS 1.0, RSS 2.0, CDF, Atom 0.3, and Atom 1.0 feeds Visit http://feedparser.org/ for the latest version Visit http://feedparser.org/docs/ for the latest documentation Required: Python 2.4 or later Recommended: CJKCodecs and iconv_codec """ __version__ = "5.0.1" __license__ = """Copyright (c) 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 " __contributors__ = ["Jason Diamond ", "John Beimler ", "Fazal Majid ", "Aaron Swartz ", "Kevin Marks ", "Sam Ruby ", "Ade Oshineye ", "Martin Pool ", "Kurt McKee "] _debug = 0 # 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 +http://feedparser.org/" % __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 run HTML markup through HTML Tidy, set # this to 1. Requires mxTidy # or utidylib . TIDY_MARKUP = 0 # List of Python interfaces for HTML Tidy, in order of preference. Only useful # if TIDY_MARKUP = 1 PREFERRED_TIDY_INTERFACES = ["uTidy", "mxTidy"] # 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 # Python 3.1 deprecates decodestring in favor of decodebytes _base64decode = getattr(base64, 'decodebytes', base64.decodestring) except: base64 = binascii = None def _s2bytes(s): # Convert a UTF-8 str to bytes if the interpreter is Python 3 try: return bytes(s, 'utf8') except (NameError, TypeError): # In Python 2.5 and below, bytes doesn't exist (NameError) # In Python 2.6 and above, bytes and str are the same (TypeError) return s def _l2bytes(l): # Convert a list of ints to bytes if the interpreter is Python 3 try: if bytes is not str: # In Python 2.6 and above, this call won't raise an exception # but it will return bytes([65]) as '[65]' instead of 'A' return bytes(l) raise NameError except NameError: return ''.join(map(chr, 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', '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 sgmllib, re, sys, copy, urlparse, time, types, cgi, urllib, urllib2, datetime try: from io import BytesIO as _StringIO except ImportError: try: from cStringIO import StringIO as _StringIO except: 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: gzip = None try: import zlib except: 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, PyXML, 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 xml.sax.make_parser(PREFERRED_XML_PARSERS) # test for valid parsers from xml.sax.saxutils import escape as _xmlescape _XML_AVAILABLE = 1 except: _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 # cjkcodecs and iconv_codec provide support for more character encodings. # Both are available from http://cjkpython.i18n.org/ try: import cjkcodecs.aliases except: pass try: import iconv_codec except: pass # chardet library auto-detects character encodings # Download from http://chardet.feedparser.org/ try: import chardet if _debug: import chardet.constants chardet.constants._debug = 1 except: chardet = None # reversable htmlentitydefs mappings for Python 2.2 try: from htmlentitydefs import name2codepoint, codepoint2name except: import htmlentitydefs name2codepoint={} codepoint2name={} for (name,codepoint) in htmlentitydefs.entitydefs.iteritems(): if codepoint.startswith('&#'): codepoint=unichr(int(codepoint[2:-1])) name2codepoint[name]=ord(codepoint) codepoint2name[ord(codepoint)]=name # BeautifulSoup parser used for parsing microformats from embedded HTML content # http://www.crummy.com/software/BeautifulSoup/ # feedparser is tested with BeautifulSoup 3.0.x, but it might work with the # older 2.x series. If it doesn't, and you can figure out why, I'll accept a # patch and modify the compatibility statement accordingly. try: import BeautifulSoup except: BeautifulSoup = 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 sgmllib.tagfind = re.compile('[a-zA-Z][-_.:a-zA-Z0-9]*') sgmllib.special = re.compile(']|"[^"]*"(?=>|/|\s|\w+=)|'[^']*'(?=>|/|\s|\w+=))*(?=[<>])|.*?(?=[<>])''') def search(self,string,index=0): match = self.endbracket.match(string,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) sgmllib.endbracket = EndBracketRegEx() SUPPORTED_VERSIONS = {'': 'unknown', 'rss090': 'RSS 0.90', 'rss091n': 'RSS 0.91 (Netscape)', 'rss091u': 'RSS 0.91 (Userland)', 'rss092': 'RSS 0.92', 'rss093': 'RSS 0.93', 'rss094': 'RSS 0.94', 'rss20': 'RSS 2.0', 'rss10': 'RSS 1.0', 'rss': 'RSS (unknown version)', 'atom01': 'Atom 0.1', 'atom02': 'Atom 0.2', 'atom03': 'Atom 0.3', 'atom10': 'Atom 1.0', 'atom': 'Atom (unknown version)', 'cdf': 'CDF', 'hotrss': 'Hot RSS' } try: UserDict = dict except NameError: # Python 2.1 does not have dict from UserDict import UserDict def dict(aList): rc = {} for k, v in aList: rc[k] = v return rc class FeedParserDict(UserDict): keymap = {'channel': 'feed', 'items': 'entries', 'guid': 'id', 'date': 'updated', 'date_parsed': 'updated_parsed', 'description': ['summary', 'subtitle'], '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): if key == 'category': return UserDict.__getitem__(self, 'tags')[0]['term'] if key == 'enclosures': norel = lambda link: FeedParserDict([(name,value) for (name,value) in link.items() if name!='rel']) return [norel(link) for link in UserDict.__getitem__(self, 'links') if link['rel']=='enclosure'] if key == 'license': for link in UserDict.__getitem__(self, 'links'): if link['rel']=='license' and link.has_key('href'): return link['href'] if key == 'categories': return [(tag['scheme'], tag['term']) for tag in UserDict.__getitem__(self, 'tags')] realkey = self.keymap.get(key, key) if type(realkey) == types.ListType: for k in realkey: if UserDict.__contains__(self, k): return UserDict.__getitem__(self, k) if UserDict.__contains__(self, key): return UserDict.__getitem__(self, key) return UserDict.__getitem__(self, realkey) def __setitem__(self, key, value): for k in self.keymap.keys(): if key == k: key = self.keymap[k] if type(key) == types.ListType: key = key[0] return UserDict.__setitem__(self, key, value) def get(self, key, default=None): if self.has_key(key): return self[key] else: return default def setdefault(self, key, value): if not self.has_key(key): self[key] = value return self[key] def has_key(self, key): try: return hasattr(self, key) or UserDict.__contains__(self, key) except AttributeError: return False # This alias prevents the 2to3 tool from changing the semantics of the # __contains__ function below and exhausting the maximum recursion depth __has_key = has_key def __getattr__(self, key): try: return self.__dict__[key] except KeyError: pass try: assert not key.startswith('_') return self.__getitem__(key) except: raise AttributeError, "object has no attribute '%s'" % key def __setattr__(self, key, value): if key.startswith('_') or key == 'data': self.__dict__[key] = value else: return self.__setitem__(key, value) def __contains__(self, key): return self.__has_key(key) def zopeCompatibilityHack(): global FeedParserDict del FeedParserDict def FeedParserDict(aDict=None): rc = {} if aDict: rc.update(aDict) return rc _ebcdic_to_ascii_map = None def _ebcdic_to_ascii(s): global _ebcdic_to_ascii_map if not _ebcdic_to_ascii_map: emap = ( 0,1,2,3,156,9,134,127,151,141,142,11,12,13,14,15, 16,17,18,19,157,133,8,135,24,25,146,143,28,29,30,31, 128,129,130,131,132,10,23,27,136,137,138,139,140,5,6,7, 144,145,22,147,148,149,150,4,152,153,154,155,20,21,158,26, 32,160,161,162,163,164,165,166,167,168,91,46,60,40,43,33, 38,169,170,171,172,173,174,175,176,177,93,36,42,41,59,94, 45,47,178,179,180,181,182,183,184,185,124,44,37,95,62,63, 186,187,188,189,190,191,192,193,194,96,58,35,64,39,61,34, 195,97,98,99,100,101,102,103,104,105,196,197,198,199,200,201, 202,106,107,108,109,110,111,112,113,114,203,204,205,206,207,208, 209,126,115,116,117,118,119,120,121,122,210,211,212,213,214,215, 216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231, 123,65,66,67,68,69,70,71,72,73,232,233,234,235,236,237, 125,74,75,76,77,78,79,80,81,82,238,239,240,241,242,243, 92,159,83,84,85,86,87,88,89,90,244,245,246,247,248,249, 48,49,50,51,52,53,54,55,56,57,250,251,252,253,254,255 ) _ebcdic_to_ascii_map = _maketrans( \ _l2bytes(range(256)), _l2bytes(emap)) return s.translate(_ebcdic_to_ascii_map) _cp1252 = { unichr(128): unichr(8364), # euro sign unichr(130): unichr(8218), # single low-9 quotation mark unichr(131): unichr( 402), # latin small letter f with hook unichr(132): unichr(8222), # double low-9 quotation mark unichr(133): unichr(8230), # horizontal ellipsis unichr(134): unichr(8224), # dagger unichr(135): unichr(8225), # double dagger unichr(136): unichr( 710), # modifier letter circumflex accent unichr(137): unichr(8240), # per mille sign unichr(138): unichr( 352), # latin capital letter s with caron unichr(139): unichr(8249), # single left-pointing angle quotation mark unichr(140): unichr( 338), # latin capital ligature oe unichr(142): unichr( 381), # latin capital letter z with caron unichr(145): unichr(8216), # left single quotation mark unichr(146): unichr(8217), # right single quotation mark unichr(147): unichr(8220), # left double quotation mark unichr(148): unichr(8221), # right double quotation mark unichr(149): unichr(8226), # bullet unichr(150): unichr(8211), # en dash unichr(151): unichr(8212), # em dash unichr(152): unichr( 732), # small tilde unichr(153): unichr(8482), # trade mark sign unichr(154): unichr( 353), # latin small letter s with caron unichr(155): unichr(8250), # single right-pointing angle quotation mark unichr(156): unichr( 339), # latin small ligature oe unichr(158): unichr( 382), # latin small letter z with caron unichr(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) try: return urlparse.urljoin(base, uri) except: uri = urlparse.urlunparse([urllib.quote(part) for part in urlparse.urlparse(uri)]) return urlparse.urljoin(base, uri) class _FeedParserMixin: namespaces = {'': '', 'http://backend.userland.com/rss': '', 'http://blogs.law.harvard.edu/tech/rss': '', 'http://purl.org/rss/1.0/': '', 'http://my.netscape.com/rdf/simple/0.9/': '', 'http://example.com/newformat#': '', 'http://example.com/necho': '', 'http://purl.org/echo/': '', 'uri/of/echo/namespace#': '', 'http://purl.org/pie/': '', 'http://purl.org/atom/ns#': '', 'http://www.w3.org/2005/Atom': '', 'http://purl.org/rss/1.0/modules/rss091#': '', 'http://webns.net/mvcb/': 'admin', 'http://purl.org/rss/1.0/modules/aggregation/': 'ag', 'http://purl.org/rss/1.0/modules/annotate/': 'annotate', 'http://media.tangent.org/rss/1.0/': 'audio', 'http://backend.userland.com/blogChannelModule': 'blogChannel', 'http://web.resource.org/cc/': 'cc', 'http://backend.userland.com/creativeCommonsRssModule': 'creativeCommons', 'http://purl.org/rss/1.0/modules/company': 'co', 'http://purl.org/rss/1.0/modules/content/': 'content', 'http://my.theinfo.org/changed/1.0/rss/': 'cp', 'http://purl.org/dc/elements/1.1/': 'dc', 'http://purl.org/dc/terms/': 'dcterms', 'http://purl.org/rss/1.0/modules/email/': 'email', 'http://purl.org/rss/1.0/modules/event/': 'ev', 'http://rssnamespace.org/feedburner/ext/1.0': 'feedburner', 'http://freshmeat.net/rss/fm/': 'fm', 'http://xmlns.com/foaf/0.1/': 'foaf', 'http://www.w3.org/2003/01/geo/wgs84_pos#': 'geo', 'http://postneo.com/icbm/': 'icbm', 'http://purl.org/rss/1.0/modules/image/': 'image', 'http://www.itunes.com/DTDs/PodCast-1.0.dtd': 'itunes', 'http://example.com/DTDs/PodCast-1.0.dtd': 'itunes', 'http://purl.org/rss/1.0/modules/link/': 'l', 'http://search.yahoo.com/mrss': 'media', #Version 1.1.2 of the Media RSS spec added the trailing slash on the namespace 'http://search.yahoo.com/mrss/': 'media', 'http://madskills.com/public/xml/rss/module/pingback/': 'pingback', 'http://prismstandard.org/namespaces/1.2/basic/': 'prism', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#': 'rdf', 'http://www.w3.org/2000/01/rdf-schema#': 'rdfs', 'http://purl.org/rss/1.0/modules/reference/': 'ref', 'http://purl.org/rss/1.0/modules/richequiv/': 'reqv', 'http://purl.org/rss/1.0/modules/search/': 'search', 'http://purl.org/rss/1.0/modules/slash/': 'slash', 'http://schemas.xmlsoap.org/soap/envelope/': 'soap', 'http://purl.org/rss/1.0/modules/servicestatus/': 'ss', 'http://hacks.benhammersley.com/rss/streaming/': 'str', 'http://purl.org/rss/1.0/modules/subscription/': 'sub', 'http://purl.org/rss/1.0/modules/syndication/': 'sy', 'http://schemas.pocketsoap.com/rss/myDescModule/': 'szf', 'http://purl.org/rss/1.0/modules/taxonomy/': 'taxo', 'http://purl.org/rss/1.0/modules/threading/': 'thr', 'http://purl.org/rss/1.0/modules/textinput/': 'ti', 'http://madskills.com/public/xml/rss/module/trackback/':'trackback', 'http://wellformedweb.org/commentAPI/': 'wfw', 'http://purl.org/rss/1.0/modules/wiki/': 'wiki', 'http://www.w3.org/1999/xhtml': 'xhtml', 'http://www.w3.org/1999/xlink': 'xlink', 'http://www.w3.org/XML/1998/namespace': 'xml' } _matchnamespaces = {} can_be_relative_uri = ['link', 'id', 'wfw_comment', 'wfw_commentrss', 'docs', 'url', 'href', 'comments', 'icon', 'logo'] can_contain_relative_uris = ['content', 'title', 'summary', 'info', 'tagline', 'subtitle', 'copyright', 'rights', 'description'] can_contain_dangerous_markup = ['content', 'title', 'summary', 'info', 'tagline', 'subtitle', 'copyright', 'rights', 'description'] html_types = ['text/html', 'application/xhtml+xml'] def __init__(self, baseuri=None, baselang=None, encoding='utf-8'): if _debug: sys.stderr.write('initializing FeedParser\n') 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 = '' # feed type/version, see SUPPORTED_VERSIONS self.namespacesInUse = {} # dictionary of namespaces defined by the feed # the following are used internally to track state; # this is really out of control and should be refactored self.infeed = 0 self.inentry = 0 self.incontent = 0 self.intextinput = 0 self.inimage = 0 self.inauthor = 0 self.incontributor = 0 self.inpublisher = 0 self.insource = 0 self.sourcedata = FeedParserDict() self.contentparams = FeedParserDict() self._summaryKey = None self.namespacemap = {} self.elementstack = [] self.basestack = [] self.langstack = [] self.baseuri = baseuri or '' self.lang = baselang or None self.svgOK = 0 self.hasTitle = 0 if baselang: self.feeddata['language'] = baselang.replace('_','-') def unknown_starttag(self, tag, attrs): if _debug: sys.stderr.write('start %s with %s\n' % (tag, attrs)) # normalize attrs attrs = [(k.lower(), v) for k, v in attrs] attrs = [(k, k in ('rel', 'type') and v.lower() or v) for k, v in attrs] # the sgml parser doesn't handle entities in attributes, but # strict xml parsers do -- account for this difference if isinstance(self, _LooseFeedParser): attrs = [(k, v.replace('&', '&')) for k, v in attrs] # track xml:base and xml:lang attrsD = dict(attrs) baseuri = attrsD.get('xml:base', attrsD.get('base')) or self.baseuri if type(baseuri) != type(u''): try: baseuri = unicode(baseuri, self.encoding) except: baseuri = unicode(baseuri, 'iso-8859-1') # 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 self.contentparams.has_key('type') and not self.contentparams.get('type', 'xml').endswith('xml'): if tag in ['xhtml:div', 'div']: return # typepad does this 10/2007 # element declared itself as escaped markup, but it isn't really self.contentparams['type'] = 'application/xhtml+xml' if self.incontent and self.contentparams.get('type') == 'application/xhtml+xml': if tag.find(':') <> -1: prefix, tag = tag.split(':', 1) namespace = self.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): if _debug: sys.stderr.write('end %s\n' % 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 self.contentparams.has_key('type') and not self.contentparams.get('type', 'xml').endswith('xml'): # element declared itself as escaped markup, but it isn't really if tag in ['xhtml:div', 'div']: return # typepad does this 10/2007 self.contentparams['type'] = 'application/xhtml+xml' if self.incontent and self.contentparams.get('type') == 'application/xhtml+xml': tag = tag.split(':')[-1] self.handle_data('' % 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] 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 _debug: sys.stderr.write('entering handle_entityref with %s\n' % ref) if ref in ('lt', 'gt', 'quot', 'amp', 'apos'): text = '&%s;' % ref elif ref in self.entities.keys(): 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') == 'application/xhtml+xml': text = _xmlescape(text) self.elementstack[-1][2].append(text) def handle_comment(self, text): # called for each comment, e.g. pass def handle_pi(self, text): # called for each processing instruction, e.g. pass def handle_decl(self, text): pass def parse_declaration(self, i): # override internal declaration handler to handle CDATA blocks if _debug: sys.stderr.write('entering parse_declaration\n') if self.rawdata[i:i+9] == '', 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 = 'text/plain' elif contentType == 'html': contentType = 'text/html' elif contentType == 'xhtml': contentType = 'application/xhtml+xml' return contentType def trackNamespace(self, prefix, uri): loweruri = uri.lower() if (prefix, loweruri) == (None, 'http://my.netscape.com/rdf/simple/0.9/') and not self.version: self.version = 'rss090' if loweruri == 'http://purl.org/rss/1.0/' and not self.version: self.version = 'rss10' if loweruri == 'http://www.w3.org/2005/atom' and not self.version: self.version = 'atom10' if loweruri.find('backend.userland.com/rss') <> -1: # match any backend.userland.com namespace uri = 'http://backend.userland.com/rss' loweruri = uri if self._matchnamespaces.has_key(loweruri): 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 '', 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 == 'atom10' and self.contentparams.get('type','text') == 'application/xhtml+xml': # remove enclosing child element, but only if it is a
and # only if all the remaining content is nested underneath it. # This means that the divs would be retained in the following: #
foo
bar
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] == '
' or pieces[0].startswith('
': depth = 0 for piece in pieces[:-1]: if piece.startswith(''): 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, basestring): pieces[i] = v.decode('utf-8') output = ''.join(pieces) if stripWhitespace: output = output.strip() if not expectingText: return output # decode base64 content if base64 and self.contentparams.get('base64', 0): try: output = _base64decode(output) except binascii.Error: pass except binascii.Incomplete: pass except TypeError: # In Python 3, base64 takes and outputs bytes, not str # This may not be the most correct way to accomplish this output = _base64decode(output.encode('utf-8')).decode('utf-8') # resolve relative URIs if (element in self.can_be_relative_uri) and output: output = self.resolveURI(output) # decode entities within embedded markup if not self.contentparams.get('base64', 0): output = self.decodeEntities(element, output) if self.lookslikehtml(output): self.contentparams['type']='text/html' # remove temporary cruft from contentparams try: del self.contentparams['mode'] except KeyError: pass try: del self.contentparams['base64'] except KeyError: pass is_htmlish = self.mapContentType(self.contentparams.get('type', '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', 'text/html')) # parse microformats # (must do this before sanitizing because some microformats # rely on elements that we sanitize) if is_htmlish and element in ['content', 'description', 'summary']: mfresults = _parseMicroformats(output, self.baseuri, self.encoding) if mfresults: for tag in mfresults.get('tags', []): self._addTag(tag['term'], tag['scheme'], tag['label']) for enclosure in mfresults.get('enclosures', []): self._start_enclosure(enclosure) for xfn in mfresults.get('xfn', []): self._addXFN(xfn['relationships'], xfn['href'], xfn['name']) vcard = mfresults.get('vcard') if vcard: self._getContext()['vcard'] = vcard # sanitize embedded markup if is_htmlish and SANITIZE_HTML: if element in self.can_contain_dangerous_markup: output = _sanitizeHTML(output, self.encoding, self.contentparams.get('type', 'text/html')) if self.encoding and type(output) != type(u''): try: output = unicode(output, self.encoding) except: pass # address common error where people take data that is already # utf-8, presume that it is iso-8859-1, and re-encode it. if self.encoding in ('utf-8', 'utf-8_INVALID_PYTHON_3') and type(output) == type(u''): try: output = unicode(output.encode('iso-8859-1'), 'utf-8') except: pass # map win-1252 extensions to the proper code points if type(output) == type(u''): output = u''.join([c in _cp1252.keys() and _cp1252[c] or c for c in output]) # categories/tags/keywords/whatever are handled in _end_category if element == 'category': return output if element == 'title' and self.hasTitle: return output # store output in appropriate place(s) if self.inentry and not self.insource: if element == 'content': self.entries[-1].setdefault(element, []) contentparams = copy.deepcopy(self.contentparams) contentparams['value'] = output self.entries[-1][element].append(contentparams) elif element == 'link': if not self.inimage: # query variables in urls in link elements are improperly # converted from `?a=1&b=2` to `?a=1&b;=2` as if they're # unhandled character references. fix this special case. output = re.sub("&([A-Za-z0-9_]+);", "&\g<1>", output) self.entries[-1][element] = output if output: self.entries[-1]['links'][-1]['href'] = output else: if element == 'description': element = 'summary' 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. def lookslikehtml(self, s): if self.version.startswith('atom'): return if self.contentparams.get('type','text/html') != 'text/plain': return # must have a close tag or a entity reference to qualify if not (re.search(r'',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' -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('text/'): return 0 if self.contentparams['type'].endswith('+xml'): return 0 if self.contentparams['type'].endswith('/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': 'rss091u', '0.92': 'rss092', '0.93': 'rss093', '0.94': 'rss094'} #If we're here then this is an RSS feed. #If we don't have a version or have a version that starts with something #other than RSS then there's been a mistake. Correct it. if not self.version or not self.version.startswith('rss'): attr_version = attrsD.get('version', '') version = versionmap.get(attr_version) if version: self.version = version elif attr_version.startswith('2.'): self.version = 'rss20' else: self.version = 'rss' def _start_dlhottitles(self, attrsD): self.version = 'hotrss' def _start_channel(self, attrsD): self.infeed = 1 self._cdf_common(attrsD) _start_feedinfo = _start_channel def _cdf_common(self, attrsD): if attrsD.has_key('lastmod'): self._start_modified({}) self.elementstack[-1][-1] = attrsD['lastmod'] self._end_modified() if attrsD.has_key('href'): self._start_link({}) self.elementstack[-1][-1] = attrsD['href'] self._end_link() def _start_feed(self, attrsD): self.infeed = 1 versionmap = {'0.1': 'atom01', '0.2': 'atom02', '0.3': 'atom03'} if not self.version: attr_version = attrsD.get('version') version = versionmap.get(attr_version) if version: self.version = version else: self.version = 'atom' def _end_channel(self): self.infeed = 0 _end_feed = _end_channel def _start_image(self, attrsD): context = self._getContext() if not self.inentry: context.setdefault('image', FeedParserDict()) self.inimage = 1 self.hasTitle = 0 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.hasTitle = 0 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: 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: 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 self.feeddata.has_key('image'): context = self.feeddata['image'] elif self.intextinput: context = self.feeddata['textinput'] elif self.inentry: context = self.entries[-1] else: context = self.feeddata return context def _save_author(self, key, value, prefix='author'): context = self._getContext() context.setdefault(prefix + '_detail', FeedParserDict()) context[prefix + '_detail'][key] = value self._sync_author_detail() context.setdefault('authors', [FeedParserDict()]) context['authors'][-1][key] = value def _save_contributor(self, key, value): context = self._getContext() context.setdefault('contributors', [FeedParserDict()]) context['contributors'][-1][key] = value def _sync_author_detail(self, key='author'): context = self._getContext() detail = context.get('%s_detail' % key) if detail: name = detail.get('name') email = detail.get('email') if name and email: context[key] = '%s (%s)' % (name, email) elif name: context[key] = name elif email: context[key] = email else: author, email = context.get(key), None if not author: return emailmatch = re.search(r'''(([a-zA-Z0-9\_\-\.\+]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?))(\?subject=\S+)?''', author) if emailmatch: email = emailmatch.group(0) # probably a better way to do the following, but it passes all the tests author = author.replace(email, '') author = author.replace('()', '') author = author.replace('<>', '') author = author.replace('<>', '') author = author.strip() if author and (author[0] == '('): author = author[1:] if author and (author[-1] == ')'): author = author[:-1] author = author.strip() if author or email: context.setdefault('%s_detail' % key, FeedParserDict()) if author: context['%s_detail' % key]['name'] = author if email: context['%s_detail' % key]['email'] = email def _start_subtitle(self, attrsD): self.pushContent('subtitle', attrsD, '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, '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.hasTitle = 0 id = self._getAttribute(attrsD, 'rdf:about') if id: context = self._getContext() context['id'] = id self._cdf_common(attrsD) _start_entry = _start_item _start_product = _start_item def _end_item(self): self.pop('item') self.inentry = 0 _end_entry = _end_item def _start_dc_language(self, attrsD): self.push('language', 1) _start_language = _start_dc_language def _end_dc_language(self): self.lang = self.pop('language') _end_language = _end_dc_language def _start_dc_publisher(self, attrsD): self.push('publisher', 1) _start_webmaster = _start_dc_publisher def _end_dc_publisher(self): self.pop('publisher') self._sync_author_detail('publisher') _end_webmaster = _end_dc_publisher def _start_published(self, attrsD): self.push('published', 1) _start_dcterms_issued = _start_published _start_issued = _start_published 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 def _start_updated(self, attrsD): self.push('updated', 1) _start_modified = _start_updated _start_dcterms_modified = _start_updated _start_pubdate = _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_pubdate = _end_updated _end_dc_date = _end_updated _end_lastbuilddate = _end_updated def _start_created(self, attrsD): self.push('created', 1) _start_dcterms_created = _start_created def _end_created(self): value = self.pop('created') self._save('created_parsed', _parse_date(value), overwrite=True) _end_dcterms_created = _end_created def _start_expirationdate(self, attrsD): self.push('expired', 1) def _end_expirationdate(self): self._save('expired_parsed', _parse_date(self.pop('expired')), overwrite=True) def _start_cc_license(self, attrsD): context = self._getContext() value = self._getAttribute(attrsD, 'rdf:resource') attrsD = FeedParserDict() attrsD['rel']='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']='license' if value: attrsD['href']=value context.setdefault('links', []).append(attrsD) del context['license'] _end_creativeCommons_license = _end_creativecommons_license def _addXFN(self, relationships, href, name): context = self._getContext() xfn = context.setdefault('xfn', []) value = FeedParserDict({'relationships': relationships, 'href': href, 'name': name}) if value not in xfn: xfn.append(value) def _addTag(self, term, scheme, label): context = self._getContext() tags = context.setdefault('tags', []) if (not term) and (not scheme) and (not label): return value = FeedParserDict({'term': term, 'scheme': scheme, 'label': label}) if value not in tags: tags.append(value) def _start_category(self, attrsD): if _debug: sys.stderr.write('entering _start_category with %s\n' % repr(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', 'http://search.yahoo.com/mrss/category_schema') self._start_category(attrsD) def _end_itunes_keywords(self): for term in self.pop('itunes_keywords').split(): self._addTag(term, 'http://www.itunes.com/', None) def _start_itunes_category(self, attrsD): self._addTag(attrsD.get('text'), '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', 'alternate') if attrsD['rel'] == 'self': attrsD.setdefault('type', 'application/atom+xml') else: attrsD.setdefault('type', 'text/html') context = self._getContext() attrsD = self._itsAnHrefDamnIt(attrsD) if attrsD.has_key('href'): 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 attrsD.has_key('href'): expectingText = 0 if (attrsD.get('rel') == 'alternate') and (self.mapContentType(attrsD.get('type')) in self.html_types): context['link'] = attrsD['href'] else: self.push('link', expectingText) _start_producturl = _start_link def _end_link(self): value = self.pop('link') context = self._getContext() _end_producturl = _end_link def _start_guid(self, attrsD): self.guidislink = (attrsD.get('ispermalink', 'true') == 'true') self.push('id', 1) def _end_guid(self): value = self.pop('id') self._save('guidislink', self.guidislink and not self._getContext().has_key('link')) 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) def _start_title(self, attrsD): if self.svgOK: return self.unknown_starttag('title', attrsD.items()) self.pushContent('title', attrsD, '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 context = self._getContext() self.hasTitle = 1 _end_dc_title = _end_title def _end_media_title(self): hasTitle = self.hasTitle self._end_title() self.hasTitle = hasTitle def _start_description(self, attrsD): context = self._getContext() if context.has_key('summary'): self._summaryKey = 'content' self._start_content(attrsD) else: self.pushContent('description', attrsD, 'text/html', self.infeed or self.inentry or self.insource) _start_dc_description = _start_description def _start_abstract(self, attrsD): self.pushContent('description', attrsD, 'text/plain', self.infeed or self.inentry or self.insource) def _end_description(self): if self._summaryKey == 'content': self._end_content() else: value = self.popContent('description') self._summaryKey = None _end_abstract = _end_description _end_dc_description = _end_description def _start_info(self, attrsD): self.pushContent('info', attrsD, '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 attrsD.has_key('href'): 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 context.has_key('generator_detail'): 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 context.has_key('summary'): self._summaryKey = 'content' self._start_content(attrsD) else: self._summaryKey = 'summary' self.pushContent(self._summaryKey, attrsD, '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']='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.hasTitle = 0 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, 'text/plain', 1) src = attrsD.get('src') if src: self.contentparams['src'] = src self.push('content', 1) def _start_prodlink(self, attrsD): self.pushContent('content', attrsD, 'text/html', 1) def _start_body(self, attrsD): self.pushContent('content', attrsD, 'application/xhtml+xml', 1) _start_xhtml_body = _start_body def _start_content_encoded(self, attrsD): self.pushContent('content', attrsD, 'text/html', 1) _start_fullitem = _start_content_encoded def _end_content(self): copyToSummary = self.mapContentType(self.contentparams.get('type')) in (['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 _end_prodlink = _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')}) _start_itunes_link = _start_itunes_image def _end_itunes_block(self): value = self.pop('itunes_block', 0) self._getContext()['itunes_block'] = (value == 'yes') and 1 or 0 def _end_itunes_explicit(self): value = self.pop('itunes_explicit', 0) # Convert 'yes' -> True, 'clean' to False, and any other value to None # False and None both evaluate as False, so the difference can be ignored # by applications that only need to know if the content is explicit. self._getContext()['itunes_explicit'] = (None, False, True)[(value == 'yes' and 2) or value == 'clean' or 0] def _start_media_content(self, attrsD): context = self._getContext() context.setdefault('media_content', []) context['media_content'].append(attrsD) def _start_media_thumbnail(self, attrsD): context = self._getContext() context.setdefault('media_thumbnail', []) self.push('url', 1) # new context['media_thumbnail'].append(attrsD) def _end_media_thumbnail(self): url = self.pop('url') context = self._getContext() if url != None and len(url.strip()) != 0: if not context['media_thumbnail'][-1].has_key('url'): context['media_thumbnail'][-1]['url'] = url def _start_media_player(self, attrsD): self.push('media_player', 0) self._getContext()['media_player'] = FeedParserDict(attrsD) def _end_media_player(self): value = self.pop('media_player') context = self._getContext() context['media_player']['content'] = value def _start_newlocation(self, attrsD): self.push('newlocation', 1) def _end_newlocation(self): url = self.pop('newlocation') context = self._getContext() # don't set newlocation if the context isn't right if context is not self.feeddata: return context['newlocation'] = _makeSafeAbsoluteURI(self.baseuri, url.strip()) if _XML_AVAILABLE: class _StrictFeedParser(_FeedParserMixin, xml.sax.handler.ContentHandler): def __init__(self, baseuri, baselang, encoding): if _debug: sys.stderr.write('trying StrictFeedParser\n') 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): self.trackNamespace(prefix, uri) if uri == 'http://www.w3.org/1999/xlink': self.decls['xmlns:'+prefix] = uri def startElementNS(self, name, qname, attrs): namespace, localname = name lowernamespace = str(namespace or '').lower() if lowernamespace.find('backend.userland.com/rss') <> -1: # match any backend.userland.com namespace namespace = 'http://backend.userland.com/rss' lowernamespace = namespace if qname and qname.find(':') > 0: givenprefix = qname.split(':')[0] else: givenprefix = None prefix = self._matchnamespaces.get(lowernamespace, givenprefix) if givenprefix and (prefix == None or (prefix == '' and lowernamespace == '')) and not self.namespacesInUse.has_key(givenprefix): 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 if _debug: sys.stderr.write('startElementNS: qname = %s, namespace = %s, givenprefix = %s, prefix = %s, attrs = %s, localname = %s\n' % (qname, namespace, givenprefix, prefix, attrs.items(), localname)) for (namespace, attrlocalname), attrvalue in attrs._attrs.items(): lowernamespace = (namespace or '').lower() prefix = self._matchnamespaces.get(lowernamespace, '') if prefix: attrlocalname = prefix + ':' + attrlocalname attrsD[str(attrlocalname).lower()] = attrvalue for qname in attrs.getQNames(): attrsD[str(qname).lower()] = attrs.getValueByQName(qname) self.unknown_starttag(localname, attrsD.items()) def characters(self, text): self.handle_data(text) def endElementNS(self, name, qname): namespace, localname = name lowernamespace = str(namespace or '').lower() if qname and qname.find(':') > 0: givenprefix = qname.split(':')[0] else: givenprefix = '' prefix = self._matchnamespaces.get(lowernamespace, givenprefix) if prefix: localname = prefix + ':' + localname elif namespace and not qname: #Expat for name,value in self.namespacesInUse.items(): if name and value == namespace: localname = name + ':' + localname break localname = str(localname).lower() self.unknown_endtag(localname) def error(self, exc): self.bozo = 1 self.exc = exc 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 = [ '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 if _debug: sys.stderr.write('entering BaseHTMLProcessor, encoding=%s\n' % self.encoding) 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 + '>' def parse_starttag(self,i): j=sgmllib.SGMLParser.parse_starttag(self, 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'', self._shorttag_replace, data) # bug [ 1399464 ] Bad regexp for _shorttag_replace 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 + '_INVALID_PYTHON_3' except NameError: if self.encoding and type(data) == type(u''): 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
, tag='pre', attrs=[('class', 'screen')]
        if _debug: sys.stderr.write('_BaseHTMLProcessor, unknown_starttag, tag=%s\n' % tag)
        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 type(value) != type(u''):
                    try:
                        value = unicode(value, self.encoding)
                    except:
                        value = unicode(value, 'iso-8859-1')
                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:
                    pass
        if tag in self.elements_no_end_tag:
            self.pieces.append('<%(tag)s%(strattrs)s />' % locals())
        else:
            self.pieces.append('<%(tag)s%(strattrs)s>' % locals())

    def unknown_endtag(self, tag):
        # called for each end tag, e.g. for 
, tag will be 'pre' # Reconstruct the original end tag. if tag not in self.elements_no_end_tag: self.pieces.append("" % locals()) def handle_charref(self, ref): # called for each character reference, e.g. for ' ', ref will be '160' # Reconstruct the original character reference. if ref.startswith('x'): value = unichr(int(ref[1:],16)) else: value = unichr(int(ref)) if value in _cp1252.keys(): self.pieces.append('&#%s;' % hex(ord(_cp1252[value]))[1:]) else: self.pieces.append('&#%(ref)s;' % locals()) def handle_entityref(self, ref): # called for each entity reference, e.g. for '©', ref will be 'copy' # Reconstruct the original entity reference. if name2codepoint.has_key(ref): self.pieces.append('&%(ref)s;' % locals()) else: self.pieces.append('&%(ref)s' % locals()) 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. if _debug: sys.stderr.write('_BaseHTMLProcessor, handle_data, text=%s\n' % text) self.pieces.append(text) def handle_comment(self, text): # called for each HTML comment, e.g. # Reconstruct the original comment. self.pieces.append('' % locals()) def handle_pi(self, text): # called for each processing instruction, e.g. # Reconstruct original processing instruction. self.pieces.append('' % locals()) def handle_decl(self, text): # called for the DOCTYPE, if present, e.g. # # Reconstruct original DOCTYPE self.pieces.append('' % locals()) _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 self.contentparams.has_key('type') and not self.contentparams.get('type', 'xml').endswith('xml'): data = data.replace('<', '<') data = data.replace('>', '>') data = data.replace('&', '&') data = data.replace('"', '"') data = data.replace(''', "'") return data def strattrs(self, attrs): return ''.join([' %s="%s"' % (n,v.replace('"','"')) for n,v in attrs]) class _MicroformatsParser: STRING = 1 DATE = 2 URI = 3 NODE = 4 EMAIL = 5 known_xfn_relationships = ['contact', 'acquaintance', 'friend', 'met', 'co-worker', 'coworker', 'colleague', 'co-resident', 'coresident', 'neighbor', 'child', 'parent', 'sibling', 'brother', 'sister', 'spouse', 'wife', 'husband', 'kin', 'relative', 'muse', 'crush', 'date', 'sweetheart', 'me'] known_binary_extensions = ['zip','rar','exe','gz','tar','tgz','tbz2','bz2','z','7z','dmg','img','sit','sitx','hqx','deb','rpm','bz2','jar','rar','iso','bin','msi','mp2','mp3','ogg','ogm','mp4','m4v','m4a','avi','wma','wmv'] def __init__(self, data, baseuri, encoding): self.document = BeautifulSoup.BeautifulSoup(data) self.baseuri = baseuri self.encoding = encoding if type(data) == type(u''): data = data.encode(encoding) self.tags = [] self.enclosures = [] self.xfn = [] self.vcard = None def vcardEscape(self, s): if type(s) in (type(''), type(u'')): s = s.replace(',', '\\,').replace(';', '\\;').replace('\n', '\\n') return s def vcardFold(self, s): s = re.sub(';+$', '', s) sFolded = '' iMax = 75 sPrefix = '' while len(s) > iMax: sFolded += sPrefix + s[:iMax] + '\n' s = s[iMax:] sPrefix = ' ' iMax = 74 sFolded += sPrefix + s return sFolded def normalize(self, s): return re.sub(r'\s+', ' ', s).strip() def unique(self, aList): results = [] for element in aList: if element not in results: results.append(element) return results def toISO8601(self, dt): return time.strftime('%Y-%m-%dT%H:%M:%SZ', dt) def getPropertyValue(self, elmRoot, sProperty, iPropertyType=4, bAllowMultiple=0, bAutoEscape=0): all = lambda x: 1 sProperty = sProperty.lower() bFound = 0 bNormalize = 1 propertyMatch = {'class': re.compile(r'\b%s\b' % sProperty)} if bAllowMultiple and (iPropertyType != self.NODE): snapResults = [] containers = elmRoot(['ul', 'ol'], propertyMatch) for container in containers: snapResults.extend(container('li')) bFound = (len(snapResults) != 0) if not bFound: snapResults = elmRoot(all, propertyMatch) bFound = (len(snapResults) != 0) if (not bFound) and (sProperty == 'value'): snapResults = elmRoot('pre') bFound = (len(snapResults) != 0) bNormalize = not bFound if not bFound: snapResults = [elmRoot] bFound = (len(snapResults) != 0) arFilter = [] if sProperty == 'vcard': snapFilter = elmRoot(all, propertyMatch) for node in snapFilter: if node.findParent(all, propertyMatch): arFilter.append(node) arResults = [] for node in snapResults: if node not in arFilter: arResults.append(node) bFound = (len(arResults) != 0) if not bFound: if bAllowMultiple: return [] elif iPropertyType == self.STRING: return '' elif iPropertyType == self.DATE: return None elif iPropertyType == self.URI: return '' elif iPropertyType == self.NODE: return None else: return None arValues = [] for elmResult in arResults: sValue = None if iPropertyType == self.NODE: if bAllowMultiple: arValues.append(elmResult) continue else: return elmResult sNodeName = elmResult.name.lower() if (iPropertyType == self.EMAIL) and (sNodeName == 'a'): sValue = (elmResult.get('href') or '').split('mailto:').pop().split('?')[0] if sValue: sValue = bNormalize and self.normalize(sValue) or sValue.strip() if (not sValue) and (sNodeName == 'abbr'): sValue = elmResult.get('title') if sValue: sValue = bNormalize and self.normalize(sValue) or sValue.strip() if (not sValue) and (iPropertyType == self.URI): if sNodeName == 'a': sValue = elmResult.get('href') elif sNodeName == 'img': sValue = elmResult.get('src') elif sNodeName == 'object': sValue = elmResult.get('data') if sValue: sValue = bNormalize and self.normalize(sValue) or sValue.strip() if (not sValue) and (sNodeName == 'img'): sValue = elmResult.get('alt') if sValue: sValue = bNormalize and self.normalize(sValue) or sValue.strip() if not sValue: sValue = elmResult.renderContents() sValue = re.sub(r'<\S[^>]*>', '', sValue) sValue = sValue.replace('\r\n', '\n') sValue = sValue.replace('\r', '\n') if sValue: sValue = bNormalize and self.normalize(sValue) or sValue.strip() if not sValue: continue if iPropertyType == self.DATE: sValue = _parse_date_iso8601(sValue) if bAllowMultiple: arValues.append(bAutoEscape and self.vcardEscape(sValue) or sValue) else: return bAutoEscape and self.vcardEscape(sValue) or sValue return arValues def findVCards(self, elmRoot, bAgentParsing=0): sVCards = '' if not bAgentParsing: arCards = self.getPropertyValue(elmRoot, 'vcard', bAllowMultiple=1) else: arCards = [elmRoot] for elmCard in arCards: arLines = [] def processSingleString(sProperty): sValue = self.getPropertyValue(elmCard, sProperty, self.STRING, bAutoEscape=1).decode(self.encoding) if sValue: arLines.append(self.vcardFold(sProperty.upper() + ':' + sValue)) return sValue or u'' def processSingleURI(sProperty): sValue = self.getPropertyValue(elmCard, sProperty, self.URI) if sValue: sContentType = '' sEncoding = '' sValueKey = '' if sValue.startswith('data:'): sEncoding = ';ENCODING=b' sContentType = sValue.split(';')[0].split('/').pop() sValue = sValue.split(',', 1).pop() else: elmValue = self.getPropertyValue(elmCard, sProperty) if elmValue: if sProperty != 'url': sValueKey = ';VALUE=uri' sContentType = elmValue.get('type', '').strip().split('/').pop().strip() sContentType = sContentType.upper() if sContentType == 'OCTET-STREAM': sContentType = '' if sContentType: sContentType = ';TYPE=' + sContentType.upper() arLines.append(self.vcardFold(sProperty.upper() + sEncoding + sContentType + sValueKey + ':' + sValue)) def processTypeValue(sProperty, arDefaultType, arForceType=None): arResults = self.getPropertyValue(elmCard, sProperty, bAllowMultiple=1) for elmResult in arResults: arType = self.getPropertyValue(elmResult, 'type', self.STRING, 1, 1) if arForceType: arType = self.unique(arForceType + arType) if not arType: arType = arDefaultType sValue = self.getPropertyValue(elmResult, 'value', self.EMAIL, 0) if sValue: arLines.append(self.vcardFold(sProperty.upper() + ';TYPE=' + ','.join(arType) + ':' + sValue)) # AGENT # must do this before all other properties because it is destructive # (removes nested class="vcard" nodes so they don't interfere with # this vcard's other properties) arAgent = self.getPropertyValue(elmCard, 'agent', bAllowMultiple=1) for elmAgent in arAgent: if re.compile(r'\bvcard\b').search(elmAgent.get('class')): sAgentValue = self.findVCards(elmAgent, 1) + '\n' sAgentValue = sAgentValue.replace('\n', '\\n') sAgentValue = sAgentValue.replace(';', '\\;') if sAgentValue: arLines.append(self.vcardFold('AGENT:' + sAgentValue)) # Completely remove the agent element from the parse tree elmAgent.extract() else: sAgentValue = self.getPropertyValue(elmAgent, 'value', self.URI, bAutoEscape=1); if sAgentValue: arLines.append(self.vcardFold('AGENT;VALUE=uri:' + sAgentValue)) # FN (full name) sFN = processSingleString('fn') # N (name) elmName = self.getPropertyValue(elmCard, 'n') if elmName: sFamilyName = self.getPropertyValue(elmName, 'family-name', self.STRING, bAutoEscape=1) sGivenName = self.getPropertyValue(elmName, 'given-name', self.STRING, bAutoEscape=1) arAdditionalNames = self.getPropertyValue(elmName, 'additional-name', self.STRING, 1, 1) + self.getPropertyValue(elmName, 'additional-names', self.STRING, 1, 1) arHonorificPrefixes = self.getPropertyValue(elmName, 'honorific-prefix', self.STRING, 1, 1) + self.getPropertyValue(elmName, 'honorific-prefixes', self.STRING, 1, 1) arHonorificSuffixes = self.getPropertyValue(elmName, 'honorific-suffix', self.STRING, 1, 1) + self.getPropertyValue(elmName, 'honorific-suffixes', self.STRING, 1, 1) arLines.append(self.vcardFold('N:' + sFamilyName + ';' + sGivenName + ';' + ','.join(arAdditionalNames) + ';' + ','.join(arHonorificPrefixes) + ';' + ','.join(arHonorificSuffixes))) elif sFN: # implied "N" optimization # http://microformats.org/wiki/hcard#Implied_.22N.22_Optimization arNames = self.normalize(sFN).split() if len(arNames) == 2: bFamilyNameFirst = (arNames[0].endswith(',') or len(arNames[1]) == 1 or ((len(arNames[1]) == 2) and (arNames[1].endswith('.')))) if bFamilyNameFirst: arLines.append(self.vcardFold('N:' + arNames[0] + ';' + arNames[1])) else: arLines.append(self.vcardFold('N:' + arNames[1] + ';' + arNames[0])) # SORT-STRING sSortString = self.getPropertyValue(elmCard, 'sort-string', self.STRING, bAutoEscape=1) if sSortString: arLines.append(self.vcardFold('SORT-STRING:' + sSortString)) # NICKNAME arNickname = self.getPropertyValue(elmCard, 'nickname', self.STRING, 1, 1) if arNickname: arLines.append(self.vcardFold('NICKNAME:' + ','.join(arNickname))) # PHOTO processSingleURI('photo') # BDAY dtBday = self.getPropertyValue(elmCard, 'bday', self.DATE) if dtBday: arLines.append(self.vcardFold('BDAY:' + self.toISO8601(dtBday))) # ADR (address) arAdr = self.getPropertyValue(elmCard, 'adr', bAllowMultiple=1) for elmAdr in arAdr: arType = self.getPropertyValue(elmAdr, 'type', self.STRING, 1, 1) if not arType: arType = ['intl','postal','parcel','work'] # default adr types, see RFC 2426 section 3.2.1 sPostOfficeBox = self.getPropertyValue(elmAdr, 'post-office-box', self.STRING, 0, 1) sExtendedAddress = self.getPropertyValue(elmAdr, 'extended-address', self.STRING, 0, 1) sStreetAddress = self.getPropertyValue(elmAdr, 'street-address', self.STRING, 0, 1) sLocality = self.getPropertyValue(elmAdr, 'locality', self.STRING, 0, 1) sRegion = self.getPropertyValue(elmAdr, 'region', self.STRING, 0, 1) sPostalCode = self.getPropertyValue(elmAdr, 'postal-code', self.STRING, 0, 1) sCountryName = self.getPropertyValue(elmAdr, 'country-name', self.STRING, 0, 1) arLines.append(self.vcardFold('ADR;TYPE=' + ','.join(arType) + ':' + sPostOfficeBox + ';' + sExtendedAddress + ';' + sStreetAddress + ';' + sLocality + ';' + sRegion + ';' + sPostalCode + ';' + sCountryName)) # LABEL processTypeValue('label', ['intl','postal','parcel','work']) # TEL (phone number) processTypeValue('tel', ['voice']) # EMAIL processTypeValue('email', ['internet'], ['internet']) # MAILER processSingleString('mailer') # TZ (timezone) processSingleString('tz') # GEO (geographical information) elmGeo = self.getPropertyValue(elmCard, 'geo') if elmGeo: sLatitude = self.getPropertyValue(elmGeo, 'latitude', self.STRING, 0, 1) sLongitude = self.getPropertyValue(elmGeo, 'longitude', self.STRING, 0, 1) arLines.append(self.vcardFold('GEO:' + sLatitude + ';' + sLongitude)) # TITLE processSingleString('title') # ROLE processSingleString('role') # LOGO processSingleURI('logo') # ORG (organization) elmOrg = self.getPropertyValue(elmCard, 'org') if elmOrg: sOrganizationName = self.getPropertyValue(elmOrg, 'organization-name', self.STRING, 0, 1) if not sOrganizationName: # implied "organization-name" optimization # http://microformats.org/wiki/hcard#Implied_.22organization-name.22_Optimization sOrganizationName = self.getPropertyValue(elmCard, 'org', self.STRING, 0, 1) if sOrganizationName: arLines.append(self.vcardFold('ORG:' + sOrganizationName)) else: arOrganizationUnit = self.getPropertyValue(elmOrg, 'organization-unit', self.STRING, 1, 1) arLines.append(self.vcardFold('ORG:' + sOrganizationName + ';' + ';'.join(arOrganizationUnit))) # CATEGORY arCategory = self.getPropertyValue(elmCard, 'category', self.STRING, 1, 1) + self.getPropertyValue(elmCard, 'categories', self.STRING, 1, 1) if arCategory: arLines.append(self.vcardFold('CATEGORIES:' + ','.join(arCategory))) # NOTE processSingleString('note') # REV processSingleString('rev') # SOUND processSingleURI('sound') # UID processSingleString('uid') # URL processSingleURI('url') # CLASS processSingleString('class') # KEY processSingleURI('key') if arLines: arLines = [u'BEGIN:vCard',u'VERSION:3.0'] + arLines + [u'END:vCard'] sVCards += u'\n'.join(arLines) + u'\n' return sVCards.strip() def isProbablyDownloadable(self, elm): attrsD = elm.attrMap if not attrsD.has_key('href'): return 0 linktype = attrsD.get('type', '').strip() if linktype.startswith('audio/') or \ linktype.startswith('video/') or \ (linktype.startswith('application/') and not linktype.endswith('xml')): return 1 path = urlparse.urlparse(attrsD['href'])[2] if path.find('.') == -1: return 0 fileext = path.split('.').pop().lower() return fileext in self.known_binary_extensions def findTags(self): all = lambda x: 1 for elm in self.document(all, {'rel': re.compile(r'\btag\b')}): href = elm.get('href') if not href: continue urlscheme, domain, path, params, query, fragment = \ urlparse.urlparse(_urljoin(self.baseuri, href)) segments = path.split('/') tag = segments.pop() if not tag: tag = segments.pop() tagscheme = urlparse.urlunparse((urlscheme, domain, '/'.join(segments), '', '', '')) if not tagscheme.endswith('/'): tagscheme += '/' self.tags.append(FeedParserDict({"term": tag, "scheme": tagscheme, "label": elm.string or ''})) def findEnclosures(self): all = lambda x: 1 enclosure_match = re.compile(r'\benclosure\b') for elm in self.document(all, {'href': re.compile(r'.+')}): if not enclosure_match.search(elm.get('rel', '')) and not self.isProbablyDownloadable(elm): continue if elm.attrMap not in self.enclosures: self.enclosures.append(elm.attrMap) if elm.string and not elm.get('title'): self.enclosures[-1]['title'] = elm.string def findXFN(self): all = lambda x: 1 for elm in self.document(all, {'rel': re.compile('.+'), 'href': re.compile('.+')}): rels = elm.get('rel', '').split() xfn_rels = [] for rel in rels: if rel in self.known_xfn_relationships: xfn_rels.append(rel) if xfn_rels: self.xfn.append({"relationships": xfn_rels, "href": elm.get('href', ''), "name": elm.string}) def _parseMicroformats(htmlSource, baseURI, encoding): if not BeautifulSoup: return if _debug: sys.stderr.write('entering _parseMicroformats\n') try: p = _MicroformatsParser(htmlSource, baseURI, encoding) except UnicodeEncodeError: # sgmllib throws this exception when performing lookups of tags # with non-ASCII characters in them. return p.vcard = p.findVCards(p.document) p.findTags() p.findEnclosures() p.findXFN() return {"tags": p.tags, "enclosures": p.enclosures, "xfn": p.xfn, "vcard": p.vcard} class _RelativeURIResolver(_BaseHTMLProcessor): relative_uris = [('a', 'href'), ('applet', 'codebase'), ('area', 'href'), ('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')] def __init__(self, baseuri, encoding, _type): _BaseHTMLProcessor.__init__(self, encoding, _type) self.baseuri = baseuri def resolveURI(self, uri): return _makeSafeAbsoluteURI(_urljoin(self.baseuri, uri.strip())) def unknown_starttag(self, tag, attrs): if _debug: sys.stderr.write('tag: [%s] with attributes: [%s]\n' % (tag, str(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 _debug: sys.stderr.write('entering _resolveRelativeURIs\n') 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: scheme = urlparse.urlparse(base)[0] 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 = ['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 = ['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', 'prompt', 'pqg', '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 = ['script', 'applet', 'style'] acceptable_css_properties = ['azimuth', 'background-color', 'border-bottom-color', 'border-collapse', 'border-color', 'border-left-color', 'border-right-color', 'border-top-color', 'clear', 'color', 'cursor', 'direction', 'display', 'elevation', 'float', 'font', 'font-family', 'font-size', 'font-style', 'font-variant', 'font-weight', 'height', 'letter-spacing', 'line-height', 'overflow', 'pause', 'pause-after', 'pause-before', 'pitch', 'pitch-range', 'richness', 'speak', 'speak-header', 'speak-numeral', 'speak-punctuation', 'speech-rate', 'stress', 'text-align', 'text-decoration', 'text-indent', 'unicode-bidi', 'vertical-align', 'voice-family', 'volume', 'white-space', 'width'] # survey of common keywords found in feeds acceptable_css_keywords = ['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 = ['annotation', 'annotation-xml', 'maction', 'math', 'merror', 'mfenced', 'mfrac', 'mi', 'mmultiscripts', 'mn', 'mo', 'mover', 'mpadded', 'mphantom', 'mprescripts', 'mroot', 'mrow', 'mspace', 'msqrt', 'mstyle', 'msub', 'msubsup', 'msup', 'mtable', 'mtd', 'mtext', 'mtr', 'munder', 'munderover', 'none', 'semantics'] mathml_attributes = ['actiontype', 'align', 'columnalign', 'columnalign', 'columnalign', 'close', 'columnlines', 'columnspacing', 'columnspan', 'depth', 'display', 'displaystyle', 'encoding', 'equalcolumns', 'equalrows', 'fence', 'fontstyle', 'fontweight', 'frame', 'height', 'linethickness', 'lspace', 'mathbackground', 'mathcolor', 'mathvariant', 'mathvariant', 'maxsize', 'minsize', 'open', 'other', 'rowalign', 'rowalign', 'rowalign', 'rowlines', 'rowspacing', 'rowspan', 'rspace', 'scriptlevel', 'selection', 'separator', 'separators', 'stretchy', 'width', 'width', 'xlink:href', 'xlink:show', 'xlink:type', 'xmlns', 'xmlns:xlink'] # svgtiny - foreignObject + linearGradient + radialGradient + stop svg_elements = ['a', 'animate', 'animateColor', 'animateMotion', 'animateTransform', 'circle', 'defs', 'desc', 'ellipse', '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 = ['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 = [ '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): p = _HTMLSanitizer(encoding, _type) htmlSource = htmlSource.replace(''): data = data.split('>', 1)[1] if data.count('= '2.3.3' assert base64 != None user, passw = _base64decode(req.headers['Authorization'].split(' ')[1]).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 except: return self.http_error_default(req, fp, code, msg, headers) def _open_resource(url_file_stream_or_string, etag, modified, agent, referrer, handlers, request_headers): """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. """ if hasattr(url_file_stream_or_string, 'read'): return url_file_stream_or_string if url_file_stream_or_string == '-': return sys.stdin if 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 for basic auth auth = None if base64: 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 try: if isinstance(url_file_stream_or_string,unicode): url_file_stream_or_string = url_file_stream_or_string.encode('idna').decode('utf-8') else: url_file_stream_or_string = url_file_stream_or_string.decode('utf-8').encode('idna').decode('utf-8') except: pass # 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 = apply(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=15) 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: pass # treat url_file_stream_or_string as string return _StringIO(str(url_file_stream_or_string)) 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 type(modified) == type(''): 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 _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\d{4})').replace( 'YY', r'(?P\d\d)').replace( 'MM', r'(?P[01]\d)').replace( 'DD', r'(?P[0123]\d)').replace( 'OOO', r'(?P[0123]\d\d)').replace( 'CC', r'(?P\d\d$)') + r'(T?(?P\d{2}):(?P\d{2})' + r'(:(?P\d{2}))?' + r'(\.(?P\d+))?' + r'(?P[+-](?P\d{2})(:(?P\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.keys(): 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'} if _debug: sys.stderr.write('OnBlog date parsed as: %s\n' % w3dtfdate) 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'} if _debug: sys.stderr.write('Nate date parsed as: %s\n' % w3dtfdate) return _parse_date_w3dtf(w3dtfdate) registerDateHandler(_parse_date_nate) _mssql_date_re = \ re.compile('(\d{4})-(\d{2})-(\d{2})\s+(\d{2}):(\d{2}):(\d{2})(\.\d+)?') def _parse_date_mssql(dateString): '''Parse a string according to the MS SQL date format''' m = _mssql_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'} if _debug: sys.stderr.write('MS SQL date parsed as: %s\n' % w3dtfdate) return _parse_date_w3dtf(w3dtfdate) registerDateHandler(_parse_date_mssql) # 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 try: wday = _greek_wdays[m.group(1)] month = _greek_months[m.group(3)] except: return 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)} if _debug: sys.stderr.write('Greek date parsed as: %s\n' % rfc822date) 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: return try: 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 except: return 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)} if _debug: sys.stderr.write('Hungarian date parsed as: %s\n' % w3dtfdate) return _parse_date_w3dtf(w3dtfdate) registerDateHandler(_parse_date_hungarian) # W3DTF-style date parsing adapted from PyXML xml.utils.iso8601, written by # Drake and licensed under the Python license. Removed all range checking # for month, day, hour, minute, and second, since mktime will normalize # these later def _parse_date_w3dtf(dateString): def __extract_date(m): year = int(m.group('year')) if year < 100: year = 100 * int(time.gmtime()[0] / 100) + int(year) if year < 1000: return 0, 0, 0 julian = m.group('julian') if julian: julian = int(julian) month = julian / 30 + 1 day = julian % 30 + 1 jday = None while jday != julian: t = time.mktime((year, month, day, 0, 0, 0, 0, 0, 0)) jday = time.gmtime(t)[-2] diff = abs(jday - julian) if jday > julian: if diff < day: day = day - diff else: month = month - 1 day = 31 elif jday < julian: if day + diff < 28: day = day + diff else: month = month + 1 return year, month, day month = m.group('month') day = 1 if month is None: month = 1 else: month = int(month) day = m.group('day') if day: day = int(day) else: day = 1 return year, month, day def __extract_time(m): if not m: return 0, 0, 0 hours = m.group('hours') if not hours: return 0, 0, 0 hours = int(hours) minutes = int(m.group('minutes')) seconds = m.group('seconds') if seconds: seconds = int(seconds) else: seconds = 0 return hours, minutes, seconds def __extract_tzd(m): '''Return the Time Zone Designator as an offset in seconds from UTC.''' if not m: return 0 tzd = m.group('tzd') if not tzd: return 0 if tzd == 'Z': return 0 hours = int(m.group('tzdhours')) minutes = m.group('tzdminutes') if minutes: minutes = int(minutes) else: minutes = 0 offset = (hours*60 + minutes) * 60 if tzd[0] == '+': return -offset return offset __date_re = ('(?P\d\d\d\d)' '(?:(?P-|)' '(?:(?P\d\d)(?:(?P=dsep)(?P\d\d))?' '|(?P\d\d\d)))?') __tzd_re = '(?P[-+](?P\d\d)(?::?(?P\d\d))|Z)' __tzd_rx = re.compile(__tzd_re) __time_re = ('(?P\d\d)(?P:|)(?P\d\d)' '(?:(?P=tsep)(?P\d\d)(?:[.,]\d+)?)?' + __tzd_re) __datetime_re = '%s(?:T%s)?' % (__date_re, __time_re) __datetime_rx = re.compile(__datetime_re) m = __datetime_rx.match(dateString) if (m is None) or (m.group() != dateString): return gmt = __extract_date(m) + __extract_time(m) + (0, 0, 0) if gmt[0] == 0: return return time.gmtime(time.mktime(gmt) + __extract_tzd(m) - time.timezone) registerDateHandler(_parse_date_w3dtf) def _parse_date_rfc822(dateString): '''Parse an RFC822, RFC1123, RFC2822, or asctime-style date''' data = dateString.split() if data[0][-1] in (',', '.') or data[0].lower() in rfc822._daynames: del data[0] if len(data) == 4: s = data[3] i = s.find('+') if i > 0: data[3:] = [s[:i], s[i+1:]] else: data.append('') dateString = " ".join(data) # Account for the Etc/GMT timezone by stripping 'Etc/' elif len(data) == 5 and data[4].lower().startswith('etc/'): data[4] = data[4][4:] dateString = " ".join(data) if len(data) < 5: dateString += ' 00:00:00 GMT' tm = rfc822.parsedate_tz(dateString) if tm: return time.gmtime(rfc822.mktime_tz(tm)) # rfc822.py defines several time zones, but we define some extra ones. # 'ET' is equivalent to 'EST', etc. _additional_timezones = {'AT': -400, 'ET': -500, 'CT': -600, 'MT': -700, 'PT': -800} rfc822._timezones.update(_additional_timezones) registerDateHandler(_parse_date_rfc822) 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})') dow, year, month, day, hour, minute, second, tz = \ _my_date_pattern.search(aDateString).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''' for handler in _date_handlers: try: date9tuple = handler(dateString) if not date9tuple: continue if len(date9tuple) != 9: if _debug: sys.stderr.write('date handler function must return 9-tuple\n') raise ValueError map(int, date9tuple) return date9tuple except Exception, e: if _debug: sys.stderr.write('%s raised %s\n' % (handler.__name__, repr(e))) pass return None def _getCharacterEncoding(http_headers, xml_data): '''Get the character encoding of the XML document http_headers is a dictionary xml_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). CJKCodecs and iconv_codec help a lot; you should definitely install them if you can. http://cjkpython.i18n.org/ ''' def _parseHTTPContentType(content_type): '''takes HTTP Content-Type header and returns (content type, charset) If no charset is specified, returns (content type, '') If no content type is specified, returns ('', '') Both return parameters are guaranteed to be lowercase strings ''' content_type = content_type or '' content_type, params = cgi.parse_header(content_type) return content_type, params.get('charset', '').replace("'", '') sniffed_xml_encoding = '' xml_encoding = '' true_encoding = '' http_content_type, http_encoding = _parseHTTPContentType(http_headers.get('content-type', http_headers.get('Content-type'))) # Must sniff for non-ASCII-compatible character encodings before # searching for XML declaration. This heuristic is defined in # section F of the XML specification: # http://www.w3.org/TR/REC-xml/#sec-guessing-no-ext-info try: if xml_data[:4] == _l2bytes([0x4c, 0x6f, 0xa7, 0x94]): # EBCDIC xml_data = _ebcdic_to_ascii(xml_data) elif xml_data[:4] == _l2bytes([0x00, 0x3c, 0x00, 0x3f]): # UTF-16BE sniffed_xml_encoding = 'utf-16be' xml_data = unicode(xml_data, 'utf-16be').encode('utf-8') elif (len(xml_data) >= 4) and (xml_data[:2] == _l2bytes([0xfe, 0xff])) and (xml_data[2:4] != _l2bytes([0x00, 0x00])): # UTF-16BE with BOM sniffed_xml_encoding = 'utf-16be' xml_data = unicode(xml_data[2:], 'utf-16be').encode('utf-8') elif xml_data[:4] == _l2bytes([0x3c, 0x00, 0x3f, 0x00]): # UTF-16LE sniffed_xml_encoding = 'utf-16le' xml_data = unicode(xml_data, 'utf-16le').encode('utf-8') elif (len(xml_data) >= 4) and (xml_data[:2] == _l2bytes([0xff, 0xfe])) and (xml_data[2:4] != _l2bytes([0x00, 0x00])): # UTF-16LE with BOM sniffed_xml_encoding = 'utf-16le' xml_data = unicode(xml_data[2:], 'utf-16le').encode('utf-8') elif xml_data[:4] == _l2bytes([0x00, 0x00, 0x00, 0x3c]): # UTF-32BE sniffed_xml_encoding = 'utf-32be' xml_data = unicode(xml_data, 'utf-32be').encode('utf-8') elif xml_data[:4] == _l2bytes([0x3c, 0x00, 0x00, 0x00]): # UTF-32LE sniffed_xml_encoding = 'utf-32le' xml_data = unicode(xml_data, 'utf-32le').encode('utf-8') elif xml_data[:4] == _l2bytes([0x00, 0x00, 0xfe, 0xff]): # UTF-32BE with BOM sniffed_xml_encoding = 'utf-32be' xml_data = unicode(xml_data[4:], 'utf-32be').encode('utf-8') elif xml_data[:4] == _l2bytes([0xff, 0xfe, 0x00, 0x00]): # UTF-32LE with BOM sniffed_xml_encoding = 'utf-32le' xml_data = unicode(xml_data[4:], 'utf-32le').encode('utf-8') elif xml_data[:3] == _l2bytes([0xef, 0xbb, 0xbf]): # UTF-8 with BOM sniffed_xml_encoding = 'utf-8' xml_data = unicode(xml_data[3:], 'utf-8').encode('utf-8') else: # ASCII-compatible pass xml_encoding_match = re.compile(_s2bytes('^<\?.*encoding=[\'"](.*?)[\'"].*\?>')).match(xml_data) except: xml_encoding_match = None if xml_encoding_match: xml_encoding = xml_encoding_match.groups()[0].decode('utf-8').lower() if sniffed_xml_encoding and (xml_encoding in ('iso-10646-ucs-2', 'ucs-2', 'csunicode', 'iso-10646-ucs-4', 'ucs-4', 'csucs4', 'utf-16', 'utf-32', 'utf_16', 'utf_32', 'utf16', 'u16')): xml_encoding = sniffed_xml_encoding acceptable_content_type = 0 application_content_types = ('application/xml', 'application/xml-dtd', 'application/xml-external-parsed-entity') text_content_types = ('text/xml', 'text/xml-external-parsed-entity') if (http_content_type in application_content_types) or \ (http_content_type.startswith('application/') and http_content_type.endswith('+xml')): acceptable_content_type = 1 true_encoding = http_encoding or xml_encoding or 'utf-8' elif (http_content_type in text_content_types) or \ (http_content_type.startswith('text/')) and http_content_type.endswith('+xml'): acceptable_content_type = 1 true_encoding = http_encoding or 'us-ascii' elif http_content_type.startswith('text/'): true_encoding = http_encoding or 'us-ascii' elif http_headers and (not (http_headers.has_key('content-type') or http_headers.has_key('Content-type'))): true_encoding = xml_encoding or 'iso-8859-1' else: true_encoding = xml_encoding or 'utf-8' # some feeds claim to be gb2312 but are actually gb18030. # apparently MSIE and Firefox both do the following switch: if true_encoding.lower() == 'gb2312': true_encoding = 'gb18030' return true_encoding, http_encoding, xml_encoding, sniffed_xml_encoding, acceptable_content_type def _toUTF8(data, encoding): '''Changes an XML data stream on the fly to specify a new encoding data is a raw sequence of bytes (not Unicode) that is presumed to be in %encoding already encoding is a string recognized by encodings.aliases ''' if _debug: sys.stderr.write('entering _toUTF8, trying encoding %s\n' % encoding) # strip Byte Order Mark (if present) if (len(data) >= 4) and (data[:2] == _l2bytes([0xfe, 0xff])) and (data[2:4] != _l2bytes([0x00, 0x00])): if _debug: sys.stderr.write('stripping BOM\n') if encoding != 'utf-16be': sys.stderr.write('trying utf-16be instead\n') encoding = 'utf-16be' data = data[2:] elif (len(data) >= 4) and (data[:2] == _l2bytes([0xff, 0xfe])) and (data[2:4] != _l2bytes([0x00, 0x00])): if _debug: sys.stderr.write('stripping BOM\n') if encoding != 'utf-16le': sys.stderr.write('trying utf-16le instead\n') encoding = 'utf-16le' data = data[2:] elif data[:3] == _l2bytes([0xef, 0xbb, 0xbf]): if _debug: sys.stderr.write('stripping BOM\n') if encoding != 'utf-8': sys.stderr.write('trying utf-8 instead\n') encoding = 'utf-8' data = data[3:] elif data[:4] == _l2bytes([0x00, 0x00, 0xfe, 0xff]): if _debug: sys.stderr.write('stripping BOM\n') if encoding != 'utf-32be': sys.stderr.write('trying utf-32be instead\n') encoding = 'utf-32be' data = data[4:] elif data[:4] == _l2bytes([0xff, 0xfe, 0x00, 0x00]): if _debug: sys.stderr.write('stripping BOM\n') if encoding != 'utf-32le': sys.stderr.write('trying utf-32le instead\n') encoding = 'utf-32le' data = data[4:] newdata = unicode(data, encoding) if _debug: sys.stderr.write('successfully converted %s data to unicode\n' % encoding) declmatch = re.compile('^<\?xml[^>]*?>') newdecl = '''''' if declmatch.search(newdata): newdata = declmatch.sub(newdecl, newdata) else: newdata = newdecl + u'\n' + newdata return newdata.encode('utf-8') def _stripDoctype(data): '''Strips DOCTYPE from XML document, returns (rss_version, stripped_data) rss_version may be 'rss091n' or None stripped_data is the same XML document, minus the DOCTYPE ''' start = re.search(_s2bytes('<\w'), data) start = start and start.start() or -1 head,data = data[:start+1], data[start+1:] entity_pattern = re.compile(_s2bytes(r'^\s*]*?)>'), re.MULTILINE) entity_results=entity_pattern.findall(head) head = entity_pattern.sub(_s2bytes(''), head) doctype_pattern = re.compile(_s2bytes(r'^\s*]*?)>'), re.MULTILINE) doctype_results = doctype_pattern.findall(head) doctype = doctype_results and doctype_results[0] or _s2bytes('') if doctype.lower().count(_s2bytes('netscape')): version = 'rss091n' else: version = None # only allow in 'safe' inline entity definitions replacement=_s2bytes('') if len(doctype_results)==1 and entity_results: safe_pattern=re.compile(_s2bytes('\s+(\w+)\s+"(&#\w+;|[^&"]*)"')) safe_entities=filter(lambda e: safe_pattern.match(e),entity_results) if safe_entities: replacement=_s2bytes('\n \n]>') data = doctype_pattern.sub(replacement, head) + data return version, data, dict(replacement and [(k.decode('utf-8'), v.decode('utf-8')) for k, v in safe_pattern.findall(replacement)]) def parse(url_file_stream_or_string, etag=None, modified=None, agent=None, referrer=None, handlers=[], request_headers={}, response_headers={}): '''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. ''' result = FeedParserDict() result['feed'] = FeedParserDict() result['entries'] = [] if _XML_AVAILABLE: 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) 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) # if feed is gzip-compressed, decompress it if f and data and 'headers' in result: if gzip and result['headers'].get('content-encoding') == 'gzip': try: data = gzip.GzipFile(fileobj=_StringIO(data)).read() except Exception, e: # Some feeds claim to be gzipped but they're not, so # we get garbage. Ideally, we should re-request the # feed without the 'Accept-encoding: gzip' header, # but we don't. result['bozo'] = 1 result['bozo_exception'] = e data = '' elif zlib and result['headers'].get('content-encoding') == 'deflate': try: data = zlib.decompress(data, -zlib.MAX_WBITS) except Exception, e: result['bozo'] = 1 result['bozo_exception'] = e data = '' # save HTTP headers if 'headers' in result: if 'etag' in result['headers'] or 'ETag' in result['headers']: etag = result['headers'].get('etag', result['headers'].get('ETag')) if etag: result['etag'] = etag if 'last-modified' in result['headers'] or 'Last-Modified' in result['headers']: modified = result['headers'].get('last-modified', result['headers'].get('Last-Modified')) if modified: result['modified'] = _parse_date(modified) if hasattr(f, 'url'): result['href'] = f.url result['status'] = 200 if hasattr(f, 'status'): result['status'] = f.status if hasattr(f, 'close'): f.close() # 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