| #!/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 2.1 or later |
| Recommended: Python 2.3 or later |
| Recommended: CJKCodecs and iconv_codec <http://cjkpython.i18n.org/> |
| """ |
| |
| __version__ = "4.1"# + "$Revision: 1.92 $"[11:15] + "-cvs" |
| __license__ = """Copyright (c) 2002-2006, Mark Pilgrim, All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without modification, |
| are permitted provided that the following conditions are met: |
| |
| * Redistributions of source code must retain the above copyright notice, |
| this list of conditions and the following disclaimer. |
| * Redistributions in binary form must reproduce the above copyright notice, |
| this list of conditions and the following disclaimer in the documentation |
| and/or other materials provided with the distribution. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' |
| AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| POSSIBILITY OF SUCH DAMAGE.""" |
| __author__ = "Mark Pilgrim <http://diveintomark.org/>" |
| __contributors__ = ["Jason Diamond <http://injektilo.org/>", |
| "John Beimler <http://john.beimler.org/>", |
| "Fazal Majid <http://www.majid.info/mylos/weblog/>", |
| "Aaron Swartz <http://aaronsw.com/>", |
| "Kevin Marks <http://epeus.blogspot.com/>"] |
| _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 <http://www.egenix.com/files/python/mxTidy.html> |
| # or utidylib <http://utidylib.berlios.de/>. |
| 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"] |
| |
| # ---------- required modules (should come with any Python distribution) ---------- |
| import sgmllib, re, sys, copy, urlparse, time, rfc822, types, cgi, urllib, urllib2 |
| 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 |
| |
| # base64 support for Atom feeds that contain embedded binary data |
| try: |
| import base64, binascii |
| except: |
| base64 = binascii = None |
| |
| # 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 |
| |
| # ---------- 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('<!') |
| sgmllib.charref = re.compile('&#(x?[0-9A-Fa-f]+)[^0-9A-Fa-f]') |
| |
| 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': ['subtitle', 'summary'], |
| '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 == '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.has_key(self, k): |
| return UserDict.__getitem__(self, k) |
| if UserDict.has_key(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.has_key(self, key) |
| except AttributeError: |
| return False |
| |
| 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 |
| ) |
| import string |
| _ebcdic_to_ascii_map = string.maketrans( \ |
| ''.join(map(chr, range(256))), ''.join(map(chr, 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) |
| 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', |
| '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://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/XML/1998/namespace': 'xml', |
| 'http://schemas.pocketsoap.com/rss/myDescModule/': 'szf' |
| } |
| _matchnamespaces = {} |
| |
| can_be_relative_uri = ['link', 'id', 'wfw_comment', 'wfw_commentrss', 'docs', 'url', 'href', 'comments', 'license', '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 |
| if baselang: |
| self.feeddata['language'] = baselang |
| |
| 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] |
| |
| # track xml:base and xml:lang |
| attrsD = dict(attrs) |
| baseuri = attrsD.get('xml:base', attrsD.get('base')) or self.baseuri |
| 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 |
| 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'): |
| # 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': |
| # Note: probably shouldn't simply recreate localname here, but |
| # our namespace handling isn't actually 100% correct in cases where |
| # the feed redefines the default namespace (which is actually |
| # the usual case for inline content, thanks Sam), so here we |
| # cheat and just reconstruct the element based on localname |
| # because that compensates for the bugs in our namespace handling. |
| # This will horribly munge inline content with non-empty qnames, |
| # but nobody actually does that, so I'm not fixing it. |
| tag = tag.split(':')[-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: |
| return self.push(prefix + suffix, 1) |
| |
| 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 + '_' |
| |
| # call special handler (if defined) or default handler |
| methodname = '_end_' + prefix + suffix |
| try: |
| 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 |
| self.contentparams['type'] = 'application/xhtml+xml' |
| if self.incontent and self.contentparams.get('type') == 'application/xhtml+xml': |
| tag = tag.split(':')[-1] |
| self.handle_data('</%s>' % tag, escape=0) |
| |
| # track xml:base and xml:lang going out of scope |
| if self.basestack: |
| self.basestack.pop() |
| if self.basestack and self.basestack[-1]: |
| self.baseuri = self.basestack[-1] |
| if self.langstack: |
| self.langstack.pop() |
| if self.langstack: # and (self.langstack[-1] is not None): |
| self.lang = self.langstack[-1] |
| |
| 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 |
| else: |
| # entity resolution graciously donated by Aaron Swartz |
| def name2cp(k): |
| import htmlentitydefs |
| if hasattr(htmlentitydefs, 'name2codepoint'): # requires Python 2.3 |
| return htmlentitydefs.name2codepoint[k] |
| k = htmlentitydefs.entitydefs[k] |
| if k.startswith('&#') and k.endswith(';'): |
| return int(k[2:-1]) # not in latin-1 |
| return ord(k) |
| try: name2cp(ref) |
| except KeyError: text = '&%s;' % ref |
| else: text = unichr(name2cp(ref)).encode('utf-8') |
| self.elementstack[-1][2].append(text) |
| |
| def handle_data(self, text, escape=1): |
| # called for each block of plain text, i.e. outside of any tag and |
| # not containing any character or entity references |
| if not self.elementstack: return |
| if escape and self.contentparams.get('type') == 'application/xhtml+xml': |
| text = _xmlescape(text) |
| self.elementstack[-1][2].append(text) |
| |
| def handle_comment(self, text): |
| # called for each comment, e.g. <!-- insert message here --> |
| pass |
| |
| def handle_pi(self, text): |
| # called for each processing instruction, e.g. <?instruction> |
| pass |
| |
| def handle_decl(self, text): |
| pass |
| |
| def parse_declaration(self, i): |
| # override internal declaration handler to handle CDATA blocks |
| if _debug: sys.stderr.write('entering parse_declaration\n') |
| if self.rawdata[i:i+9] == '<![CDATA[': |
| k = self.rawdata.find(']]>', i) |
| if k == -1: k = len(self.rawdata) |
| self.handle_data(_xmlescape(self.rawdata[i+9:k]), 0) |
| return k+3 |
| else: |
| k = self.rawdata.find('>', i) |
| return k+1 |
| |
| def mapContentType(self, contentType): |
| contentType = contentType.lower() |
| if contentType == 'text': |
| 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 <div> and |
| # only if all the remaining content is nested underneath it. |
| # This means that the divs would be retained in the following: |
| # <div>foo</div><div>bar</div> |
| if pieces and (pieces[0] == '<div>' or pieces[0].startswith('<div ')) and pieces[-1]=='</div>': |
| depth = 0 |
| for piece in pieces[:-1]: |
| if piece.startswith('</'): |
| depth -= 1 |
| if depth == 0: break |
| elif piece.startswith('<') and not piece.endswith('/>'): |
| depth += 1 |
| else: |
| pieces = pieces[1:-1] |
| |
| output = ''.join(pieces) |
| if stripWhitespace: |
| output = output.strip() |
| if not expectingText: return output |
| |
| # decode base64 content |
| if base64 and self.contentparams.get('base64', 0): |
| try: |
| output = base64.decodestring(output) |
| except binascii.Error: |
| pass |
| except binascii.Incomplete: |
| pass |
| |
| # 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) |
| |
| # remove temporary cruft from contentparams |
| try: |
| del self.contentparams['mode'] |
| except KeyError: |
| pass |
| try: |
| del self.contentparams['base64'] |
| except KeyError: |
| pass |
| |
| # resolve relative URIs within embedded markup |
| if self.mapContentType(self.contentparams.get('type', 'text/html')) in self.html_types: |
| if element in self.can_contain_relative_uris: |
| output = _resolveRelativeURIs(output, self.baseuri, self.encoding) |
| |
| # sanitize embedded markup |
| if self.mapContentType(self.contentparams.get('type', 'text/html')) in self.html_types: |
| if element in self.can_contain_dangerous_markup: |
| output = _sanitizeHTML(output, self.encoding) |
| |
| 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=='utf-8' 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 and cp1252[c] or c for c in output]) |
| |
| # categories/tags/keywords/whatever are handled in _end_category |
| if element == 'category': |
| 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': |
| 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': |
| 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 |
| 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 |
| |
| def _mapToStandardPrefix(self, name): |
| colonpos = name.find(':') |
| if colonpos <> -1: |
| prefix = name[:colonpos] |
| suffix = name[colonpos+1:] |
| prefix = self.namespacemap.get(prefix, prefix) |
| name = prefix + ':' + suffix |
| return name |
| |
| def _getAttribute(self, attrsD, name): |
| return attrsD.get(self._mapToStandardPrefix(name)) |
| |
| def _isBase64(self, attrsD, contentparams): |
| if attrsD.get('mode', '') == 'base64': |
| return 1 |
| if self.contentparams['type'].startswith('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): |
| context = self._getContext() |
| context.setdefault(key, value) |
| |
| def _start_rss(self, attrsD): |
| versionmap = {'0.91': 'rss091u', |
| '0.92': 'rss092', |
| '0.93': 'rss093', |
| '0.94': 'rss094'} |
| if not self.version: |
| 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): |
| self.inimage = 1 |
| self.push('image', 0) |
| context = self._getContext() |
| context.setdefault('image', FeedParserDict()) |
| |
| def _end_image(self): |
| self.pop('image') |
| self.inimage = 0 |
| |
| def _start_textinput(self, attrsD): |
| self.intextinput = 1 |
| self.push('textinput', 0) |
| context = self._getContext() |
| context.setdefault('textinput', FeedParserDict()) |
| _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) |
| _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['textinput']['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['image']['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['image']['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) |
| elif self.inimage: |
| context = self._getContext() |
| context['image']['href'] = value |
| elif self.intextinput: |
| context = self._getContext() |
| context['textinput']['link'] = 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.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() |
| |
| 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 = context.get(key) |
| if not author: return |
| emailmatch = re.search(r'''(([a-zA-Z0-9\_\-\.\+]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?))''', author) |
| if not emailmatch: return |
| 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.strip() |
| if author and (author[0] == '('): |
| author = author[1:] |
| if author and (author[-1] == ')'): |
| author = author[:-1] |
| author = author.strip() |
| context.setdefault('%s_detail' % key, FeedParserDict()) |
| context['%s_detail' % key]['name'] = author |
| 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 |
| 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)) |
| _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 |
| |
| def _end_updated(self): |
| value = self.pop('updated') |
| parsed_value = _parse_date(value) |
| self._save('updated_parsed', parsed_value) |
| _end_modified = _end_updated |
| _end_dcterms_modified = _end_updated |
| _end_pubdate = _end_updated |
| _end_dc_date = _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)) |
| _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'))) |
| |
| def _start_cc_license(self, attrsD): |
| self.push('license', 1) |
| value = self._getAttribute(attrsD, 'rdf:resource') |
| if value: |
| self.elementstack[-1][2].append(value) |
| self.pop('license') |
| |
| def _start_creativecommons_license(self, attrsD): |
| self.push('license', 1) |
| |
| def _end_creativecommons_license(self): |
| self.pop('license') |
| |
| def _addTag(self, term, scheme, label): |
| context = self._getContext() |
| tags = context.setdefault('tags', []) |
| if (not term) and (not scheme) and (not label): return |
| value = FeedParserDict({'term': term, 'scheme': scheme, 'label': label}) |
| if value not in tags: |
| tags.append(FeedParserDict({'term': term, 'scheme': scheme, 'label': label})) |
| |
| 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 _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 |
| |
| def _start_cloud(self, attrsD): |
| self._getContext()['cloud'] = FeedParserDict(attrsD) |
| |
| def _start_link(self, attrsD): |
| attrsD.setdefault('rel', 'alternate') |
| attrsD.setdefault('type', 'text/html') |
| 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 = self._getContext() |
| context.setdefault('links', []) |
| context['links'].append(FeedParserDict(attrsD)) |
| if attrsD['rel'] == 'enclosure': |
| self._start_enclosure(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() |
| if self.intextinput: |
| context['textinput']['link'] = value |
| if self.inimage: |
| context['image']['link'] = value |
| _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): |
| 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): |
| value = self.popContent('title') |
| context = self._getContext() |
| if self.intextinput: |
| context['textinput']['title'] = value |
| elif self.inimage: |
| context['image']['title'] = value |
| _end_dc_title = _end_title |
| _end_media_title = _end_title |
| |
| 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) |
| |
| 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') |
| context = self._getContext() |
| if self.intextinput: |
| context['textinput']['description'] = value |
| elif self.inimage: |
| context['image']['description'] = value |
| self._summaryKey = None |
| _end_abstract = _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) |
| self._getContext().setdefault('enclosures', []).append(FeedParserDict(attrsD)) |
| href = attrsD.get('href') |
| if href: |
| context = self._getContext() |
| if not context.get('id'): |
| context['id'] = href |
| |
| def _start_source(self, attrsD): |
| self.insource = 1 |
| |
| def _end_source(self): |
| self.insource = 0 |
| 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): |
| copyToDescription = self.mapContentType(self.contentparams.get('type')) in (['text/plain'] + self.html_types) |
| value = self.popContent('content') |
| if copyToDescription: |
| self._save('description', 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) |
| 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) |
| self._getContext()['itunes_explicit'] = (value == 'yes') and 1 or 0 |
| |
| 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 |
| |
| def startPrefixMapping(self, prefix, uri): |
| self.trackNamespace(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 |
| if prefix: |
| localname = prefix + ':' + localname |
| localname = str(localname).lower() |
| 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)) |
| |
| # 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 = {} |
| 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 |
| 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): |
| elements_no_end_tag = ['area', 'base', 'basefont', 'br', 'col', 'frame', 'hr', |
| 'img', 'input', 'isindex', 'link', 'meta', 'param'] |
| |
| def __init__(self, encoding): |
| self.encoding = encoding |
| 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 + '></' + tag + '>' |
| |
| def feed(self, data): |
| data = re.compile(r'<!((?!DOCTYPE|--|\[))', re.IGNORECASE).sub(r'<!\1', data) |
| #data = re.sub(r'<(\S+?)\s*?/>', self._shorttag_replace, data) # bug [ 1399464 ] Bad regexp for _shorttag_replace |
| data = re.sub(r'<([^<\s]+?)\s*/>', self._shorttag_replace, data) |
| data = data.replace(''', "'") |
| data = data.replace('"', '"') |
| 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): |
| # utility method to be called by descendants |
| 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] |
| return attrs |
| |
| def unknown_starttag(self, tag, attrs): |
| # called for each start tag |
| # attrs is a list of (attr, value) tuples |
| # e.g. for <pre class='screen'>, tag='pre', attrs=[('class', 'screen')] |
| if _debug: sys.stderr.write('_BaseHTMLProcessor, unknown_starttag, tag=%s\n' % tag) |
| uattrs = [] |
| # thanks to Kevin Marks for this breathtaking hack to deal with (valid) high-bit attribute values in UTF-8 feeds |
| for key, value in attrs: |
| if type(value) != type(u''): |
| value = unicode(value, self.encoding) |
| uattrs.append((unicode(key, self.encoding), value)) |
| strattrs = u''.join([u' %s="%s"' % (key, value) for key, value in uattrs]).encode(self.encoding) |
| 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 </pre>, tag will be 'pre' |
| # Reconstruct the original end tag. |
| if tag not in self.elements_no_end_tag: |
| self.pieces.append("</%(tag)s>" % locals()) |
| |
| def handle_charref(self, ref): |
| # called for each character reference, e.g. for ' ', ref will be '160' |
| # Reconstruct the original character reference. |
| 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. |
| import htmlentitydefs |
| if not hasattr(htmlentitydefs, 'name2codepoint') or htmlentitydefs.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_text, text=%s\n' % text) |
| self.pieces.append(text) |
| |
| def handle_comment(self, text): |
| # called for each HTML comment, e.g. <!-- insert Javascript code here --> |
| # Reconstruct the original comment. |
| self.pieces.append('<!--%(text)s-->' % locals()) |
| |
| def handle_pi(self, text): |
| # called for each processing instruction, e.g. <?instruction> |
| # Reconstruct original processing instruction. |
| self.pieces.append('<?%(text)s>' % locals()) |
| |
| def handle_decl(self, text): |
| # called for the DOCTYPE, if present, e.g. |
| # <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" |
| # "http://www.w3.org/TR/html4/loose.dtd"> |
| # Reconstruct original DOCTYPE |
| self.pieces.append('<!%(text)s>' % 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 output(self): |
| '''Return processed HTML as a single string''' |
| return ''.join([str(p) for p in self.pieces]) |
| |
| class _LooseFeedParser(_FeedParserMixin, _BaseHTMLProcessor): |
| def __init__(self, baseuri, baselang, encoding): |
| sgmllib.SGMLParser.__init__(self) |
| _FeedParserMixin.__init__(self, baseuri, baselang, encoding) |
| |
| 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"' % t for t in attrs]) |
| |
| 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): |
| _BaseHTMLProcessor.__init__(self, encoding) |
| self.baseuri = baseuri |
| |
| def resolveURI(self, uri): |
| return _urljoin(self.baseuri, uri) |
| |
| def unknown_starttag(self, tag, attrs): |
| attrs = self.normalize_attrs(attrs) |
| attrs = [(key, ((tag, key) in self.relative_uris) and self.resolveURI(value) or value) for key, value in attrs] |
| _BaseHTMLProcessor.unknown_starttag(self, tag, attrs) |
| |
| def _resolveRelativeURIs(htmlSource, baseURI, encoding): |
| if _debug: sys.stderr.write('entering _resolveRelativeURIs\n') |
| p = _RelativeURIResolver(baseURI, encoding) |
| p.feed(htmlSource) |
| return p.output() |
| |
| class _HTMLSanitizer(_BaseHTMLProcessor): |
| acceptable_elements = ['a', 'abbr', 'acronym', 'address', 'area', 'b', 'big', |
| 'blockquote', 'br', 'button', 'caption', 'center', 'cite', 'code', 'col', |
| 'colgroup', 'dd', 'del', 'dfn', 'dir', 'div', 'dl', 'dt', 'em', 'fieldset', |
| 'font', 'form', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'hr', 'i', 'img', 'input', |
| 'ins', 'kbd', 'label', 'legend', 'li', 'map', 'menu', 'ol', 'optgroup', |
| 'option', 'p', 'pre', 'q', 's', 'samp', 'select', 'small', 'span', 'strike', |
| 'strong', 'sub', 'sup', 'table', 'tbody', 'td', 'textarea', 'tfoot', 'th', |
| 'thead', 'tr', 'tt', 'u', 'ul', 'var'] |
| |
| acceptable_attributes = ['abbr', 'accept', 'accept-charset', 'accesskey', |
| 'action', 'align', 'alt', 'axis', 'border', 'cellpadding', 'cellspacing', |
| 'char', 'charoff', 'charset', 'checked', 'cite', 'class', 'clear', 'cols', |
| 'colspan', 'color', 'compact', 'coords', 'datetime', 'dir', 'disabled', |
| 'enctype', 'for', 'frame', 'headers', 'height', 'href', 'hreflang', 'hspace', |
| 'id', 'ismap', 'label', 'lang', 'longdesc', 'maxlength', 'media', 'method', |
| 'multiple', 'name', 'nohref', 'noshade', 'nowrap', 'prompt', 'readonly', |
| 'rel', 'rev', 'rows', 'rowspan', 'rules', 'scope', 'selected', 'shape', 'size', |
| 'span', 'src', 'start', 'summary', 'tabindex', 'target', 'title', 'type', |
| 'usemap', 'valign', 'value', 'vspace', 'width', 'xml:lang'] |
| |
| unacceptable_elements_with_end_tag = ['script', 'applet'] |
| |
| def reset(self): |
| _BaseHTMLProcessor.reset(self) |
| self.unacceptablestack = 0 |
| |
| def unknown_starttag(self, tag, attrs): |
| if not tag in self.acceptable_elements: |
| if tag in self.unacceptable_elements_with_end_tag: |
| self.unacceptablestack += 1 |
| return |
| attrs = self.normalize_attrs(attrs) |
| attrs = [(key, value) for key, value in attrs if key in self.acceptable_attributes] |
| _BaseHTMLProcessor.unknown_starttag(self, tag, 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 |
| 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 _sanitizeHTML(htmlSource, encoding): |
| p = _HTMLSanitizer(encoding) |
| p.feed(htmlSource) |
| data = p.output() |
| if TIDY_MARKUP: |
| # loop through list of preferred Tidy interfaces looking for one that's installed, |
| # then set up a common _tidy function to wrap the interface-specific API. |
| _tidy = None |
| for tidy_interface in PREFERRED_TIDY_INTERFACES: |
| try: |
| if tidy_interface == "uTidy": |
| from tidy import parseString as _utidy |
| def _tidy(data, **kwargs): |
| return str(_utidy(data, **kwargs)) |
| break |
| elif tidy_interface == "mxTidy": |
| from mx.Tidy import Tidy as _mxtidy |
| def _tidy(data, **kwargs): |
| nerrors, nwarnings, data, errordata = _mxtidy.tidy(data, **kwargs) |
| return data |
| break |
| except: |
| pass |
| if _tidy: |
| utf8 = type(data) == type(u'') |
| if utf8: |
| data = data.encode('utf-8') |
| data = _tidy(data, output_xhtml=1, numeric_entities=1, wrap=0, char_encoding="utf8") |
| if utf8: |
| data = unicode(data, 'utf-8') |
| if data.count('<body'): |
| data = data.split('<body', 1)[1] |
| if data.count('>'): |
| data = data.split('>', 1)[1] |
| if data.count('</body'): |
| data = data.split('</body', 1)[0] |
| data = data.strip().replace('\r\n', '\n') |
| return data |
| |
| class _FeedURLHandler(urllib2.HTTPDigestAuthHandler, urllib2.HTTPRedirectHandler, urllib2.HTTPDefaultErrorHandler): |
| def http_error_default(self, req, fp, code, msg, headers): |
| if ((code / 100) == 3) and (code != 304): |
| return self.http_error_302(req, fp, code, msg, headers) |
| infourl = urllib.addinfourl(fp, headers, req.get_full_url()) |
| infourl.status = code |
| return infourl |
| |
| def http_error_302(self, req, fp, code, msg, headers): |
| if headers.dict.has_key('location'): |
| infourl = urllib2.HTTPRedirectHandler.http_error_302(self, req, fp, code, msg, headers) |
| else: |
| infourl = urllib.addinfourl(fp, headers, req.get_full_url()) |
| if not hasattr(infourl, 'status'): |
| infourl.status = code |
| return infourl |
| |
| def http_error_301(self, req, fp, code, msg, headers): |
| if headers.dict.has_key('location'): |
| infourl = urllib2.HTTPRedirectHandler.http_error_301(self, req, fp, code, msg, headers) |
| else: |
| infourl = urllib.addinfourl(fp, headers, req.get_full_url()) |
| if not hasattr(infourl, 'status'): |
| infourl.status = code |
| return infourl |
| |
| http_error_300 = http_error_302 |
| http_error_303 = http_error_302 |
| http_error_307 = http_error_302 |
| |
| def http_error_401(self, req, fp, code, msg, headers): |
| # Check if |
| # - server requires digest auth, AND |
| # - we tried (unsuccessfully) with basic auth, AND |
| # - we're using Python 2.3.3 or later (digest auth is irreparably broken in earlier versions) |
| # If all conditions hold, parse authentication information |
| # out of the Authorization header we sent the first time |
| # (for the username and password) and the WWW-Authenticate |
| # header the server sent back (for the realm) and retry |
| # the request with the appropriate digest auth headers instead. |
| # This evil genius hack has been brought to you by Aaron Swartz. |
| host = urlparse.urlparse(req.get_full_url())[1] |
| try: |
| assert sys.version.split()[0] >= '2.3.3' |
| assert base64 != None |
| user, passw = base64.decodestring(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): |
| """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 must be a tuple of 9 integers |
| as returned by gmtime() in the standard Python time module. This MUST |
| be in GMT (Greenwich Mean Time). The formatted date/time will be 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 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'): |
| 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.encodestring(user_passwd).strip() |
| # try to open with urllib2 (to use optional headers) |
| request = urllib2.Request(url_file_stream_or_string) |
| request.add_header('User-Agent', agent) |
| if etag: |
| request.add_header('If-None-Match', etag) |
| 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) |
| request.add_header('A-IM', 'feed') # RFC 3229 support |
| opener = apply(urllib2.build_opener, tuple([_FeedURLHandler()] + handlers)) |
| opener.addheaders = [] # RMK - must clear so we only send our custom User-Agent |
| try: |
| return opener.open(request) |
| 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) |
| except: |
| pass |
| |
| # treat url_file_stream_or_string as string |
| return _StringIO(str(url_file_stream_or_string)) |
| |
| _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-MM', 'YYYY-?OOO', |
| 'YY-?MM-?DD', 'YY-?OOO', 'YYYY', |
| '-YY-?MM', '-OOO', '-YY', |
| '--MM-?DD', '--MM', |
| '---DD', |
| 'CC', ''] |
| _iso8601_re = [ |
| tmpl.replace( |
| 'YYYY', r'(?P<year>\d{4})').replace( |
| 'YY', r'(?P<year>\d\d)').replace( |
| 'MM', r'(?P<month>[01]\d)').replace( |
| 'DD', r'(?P<day>[0123]\d)').replace( |
| 'OOO', r'(?P<ordinal>[0123]\d\d)').replace( |
| 'CC', r'(?P<century>\d\d$)') |
| + r'(T?(?P<hour>\d{2}):(?P<minute>\d{2})' |
| + r'(:(?P<second>\d{2}))?' |
| + r'(?P<tz>[+-](?P<tzhour>\d{2})(:(?P<tzmin>\d{2}))?|Z)?)?' |
| for tmpl in _iso8601_tmpl] |
| del tmpl |
| _iso8601_matches = [re.compile(regex).match for regex in _iso8601_re] |
| del regex |
| 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(params.get('second', 0)) |
| # weekday is normalized by mktime(), we can ignore it |
| weekday = 0 |
| # daylight savings is complex, but not needed for feedparser's purposes |
| # as time zones, if specified, include mention of whether it is active |
| # (e.g. PST vs. PDT, CET). Using -1 is implementation-dependent and |
| # and most implementations have DST bugs |
| daylight_savings_flag = 0 |
| 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(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<year>\d\d\d\d)' |
| '(?:(?P<dsep>-|)' |
| '(?:(?P<julian>\d\d\d)' |
| '|(?P<month>\d\d)(?:(?P=dsep)(?P<day>\d\d))?))?') |
| __tzd_re = '(?P<tzd>[-+](?P<tzdhours>\d\d)(?::?(?P<tzdminutes>\d\d))|Z)' |
| __tzd_rx = re.compile(__tzd_re) |
| __time_re = ('(?P<hours>\d\d)(?P<tsep>:|)(?P<minutes>\d\d)' |
| '(?:(?P=tsep)(?P<seconds>\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) |
| 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(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')) |
| # 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] == '\x4c\x6f\xa7\x94': |
| # EBCDIC |
| xml_data = _ebcdic_to_ascii(xml_data) |
| elif xml_data[:4] == '\x00\x3c\x00\x3f': |
| # 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] == '\xfe\xff') and (xml_data[2:4] != '\x00\x00'): |
| # UTF-16BE with BOM |
| sniffed_xml_encoding = 'utf-16be' |
| xml_data = unicode(xml_data[2:], 'utf-16be').encode('utf-8') |
| elif xml_data[:4] == '\x3c\x00\x3f\x00': |
| # 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] == '\xff\xfe') and (xml_data[2:4] != '\x00\x00'): |
| # UTF-16LE with BOM |
| sniffed_xml_encoding = 'utf-16le' |
| xml_data = unicode(xml_data[2:], 'utf-16le').encode('utf-8') |
| elif xml_data[:4] == '\x00\x00\x00\x3c': |
| # UTF-32BE |
| sniffed_xml_encoding = 'utf-32be' |
| xml_data = unicode(xml_data, 'utf-32be').encode('utf-8') |
| elif xml_data[:4] == '\x3c\x00\x00\x00': |
| # UTF-32LE |
| sniffed_xml_encoding = 'utf-32le' |
| xml_data = unicode(xml_data, 'utf-32le').encode('utf-8') |
| elif xml_data[:4] == '\x00\x00\xfe\xff': |
| # UTF-32BE with BOM |
| sniffed_xml_encoding = 'utf-32be' |
| xml_data = unicode(xml_data[4:], 'utf-32be').encode('utf-8') |
| elif xml_data[:4] == '\xff\xfe\x00\x00': |
| # UTF-32LE with BOM |
| sniffed_xml_encoding = 'utf-32le' |
| xml_data = unicode(xml_data[4:], 'utf-32le').encode('utf-8') |
| elif xml_data[:3] == '\xef\xbb\xbf': |
| # 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('^<\?.*encoding=[\'"](.*?)[\'"].*\?>').match(xml_data) |
| except: |
| xml_encoding_match = None |
| if xml_encoding_match: |
| xml_encoding = xml_encoding_match.groups()[0].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')): |
| true_encoding = xml_encoding or 'iso-8859-1' |
| else: |
| true_encoding = xml_encoding or 'utf-8' |
| 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] == '\xfe\xff') and (data[2:4] != '\x00\x00'): |
| 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] == '\xff\xfe') and (data[2:4] != '\x00\x00'): |
| 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] == '\xef\xbb\xbf': |
| 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] == '\x00\x00\xfe\xff': |
| 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] == '\xff\xfe\x00\x00': |
| 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 = '''<?xml version='1.0' encoding='utf-8'?>''' |
| 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 |
| ''' |
| entity_pattern = re.compile(r'<!ENTITY([^>]*?)>', re.MULTILINE) |
| data = entity_pattern.sub('', data) |
| doctype_pattern = re.compile(r'<!DOCTYPE([^>]*?)>', re.MULTILINE) |
| doctype_results = doctype_pattern.findall(data) |
| doctype = doctype_results and doctype_results[0] or '' |
| if doctype.lower().count('netscape'): |
| version = 'rss091n' |
| else: |
| version = None |
| data = doctype_pattern.sub('', data) |
| return version, data |
| |
| def parse(url_file_stream_or_string, etag=None, modified=None, agent=None, referrer=None, handlers=[]): |
| '''Parse a feed from a URL, file, stream, or string''' |
| result = FeedParserDict() |
| result['feed'] = FeedParserDict() |
| result['entries'] = [] |
| if _XML_AVAILABLE: |
| result['bozo'] = 0 |
| if type(handlers) == types.InstanceType: |
| handlers = [handlers] |
| try: |
| f = _open_resource(url_file_stream_or_string, etag, modified, agent, referrer, handlers) |
| data = f.read() |
| except Exception, e: |
| result['bozo'] = 1 |
| result['bozo_exception'] = e |
| data = '' |
| f = None |
| |
| # if feed is gzip-compressed, decompress it |
| if f and data and hasattr(f, 'headers'): |
| if gzip and f.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 f.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 hasattr(f, 'info'): |
| info = f.info() |
| result['etag'] = info.getheader('ETag') |
| last_modified = info.getheader('Last-Modified') |
| if last_modified: |
| result['modified'] = _parse_date(last_modified) |
| if hasattr(f, 'url'): |
| result['href'] = f.url |
| result['status'] = 200 |
| if hasattr(f, 'status'): |
| result['status'] = f.status |
| if hasattr(f, 'headers'): |
| result['headers'] = f.headers.dict |
| 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 <?xml declaration |
| # - sniffed_encoding is the encoding sniffed from the first 4 bytes of the XML data |
| # - result['encoding'] is the actual encoding, as per RFC 3023 and a variety of other conflicting specifications |
| http_headers = result.get('headers', {}) |
| result['encoding'], http_encoding, xml_encoding, sniffed_xml_encoding, acceptable_content_type = \ |
| _getCharacterEncoding(http_headers, data) |
| if http_headers and (not acceptable_content_type): |
| if http_headers.has_key('content-type'): |
| bozo_message = '%s is not an XML media type' % http_headers['content-type'] |
| else: |
| bozo_message = 'no Content-type specified' |
| result['bozo'] = 1 |
| result['bozo_exception'] = NonXMLContentType(bozo_message) |
| |
| result['version'], data = _stripDoctype(data) |
| |
| baseuri = http_headers.get('content-location', result.get('href')) |
| baselang = http_headers.get('content-language', None) |
| |
| # if server sent 304, we're done |
| if result.get('status', 0) == 304: |
| result['version'] = '' |
| result['debug_message'] = 'The feed has not changed since you last checked, ' + \ |
| 'so the server sent no data. This is a feature, not a bug!' |
| return result |
| |
| # if there was a problem downloading, we're done |
| if not data: |
| return result |
| |
| # determine character encoding |
| use_strict_parser = 0 |
| known_encoding = 0 |
| tried_encodings = [] |
| # try: HTTP encoding, declared XML encoding, encoding sniffed from BOM |
| for proposed_encoding in (result['encoding'], xml_encoding, sniffed_xml_encoding): |
| if not proposed_encoding: continue |
| if proposed_encoding in tried_encodings: continue |
| tried_encodings.append(proposed_encoding) |
| try: |
| data = _toUTF8(data, proposed_encoding) |
| known_encoding = use_strict_parser = 1 |
| break |
| except: |
| pass |
| # if no luck and we have auto-detection library, try that |
| if (not known_encoding) and chardet: |
| try: |
| proposed_encoding = chardet.detect(data)['encoding'] |
| if proposed_encoding and (proposed_encoding not in tried_encodings): |
| tried_encodings.append(proposed_encoding) |
| data = _toUTF8(data, proposed_encoding) |
| known_encoding = use_strict_parser = 1 |
| except: |
| pass |
| # if still no luck and we haven't tried utf-8 yet, try that |
| if (not known_encoding) and ('utf-8' not in tried_encodings): |
| try: |
| proposed_encoding = 'utf-8' |
| tried_encodings.append(proposed_encoding) |
| data = _toUTF8(data, proposed_encoding) |
| known_encoding = use_strict_parser = 1 |
| except: |
| pass |
| # if still no luck and we haven't tried windows-1252 yet, try that |
| if (not known_encoding) and ('windows-1252' not in tried_encodings): |
| try: |
| proposed_encoding = 'windows-1252' |
| tried_encodings.append(proposed_encoding) |
| data = _toUTF8(data, proposed_encoding) |
| known_encoding = use_strict_parser = 1 |
| except: |
| pass |
| # if still no luck, give up |
| if not known_encoding: |
| result['bozo'] = 1 |
| result['bozo_exception'] = CharacterEncodingUnknown( \ |
| 'document encoding unknown, I tried ' + \ |
| '%s, %s, utf-8, and windows-1252 but nothing worked' % \ |
| (result['encoding'], xml_encoding)) |
| result['encoding'] = '' |
| elif proposed_encoding != result['encoding']: |
| result['bozo'] = 1 |
| result['bozo_exception'] = CharacterEncodingOverride( \ |
| 'documented declared as %s, but parsed as %s' % \ |
| (result['encoding'], proposed_encoding)) |
| result['encoding'] = proposed_encoding |
| |
| if not _XML_AVAILABLE: |
| use_strict_parser = 0 |
| if use_strict_parser: |
| # initialize the SAX parser |
| feedparser = _StrictFeedParser(baseuri, baselang, 'utf-8') |
| saxparser = xml.sax.make_parser(PREFERRED_XML_PARSERS) |
| saxparser.setFeature(xml.sax.handler.feature_namespaces, 1) |
| saxparser.setContentHandler(feedparser) |
| saxparser.setErrorHandler(feedparser) |
| source = xml.sax.xmlreader.InputSource() |
| source.setByteStream(_StringIO(data)) |
| if hasattr(saxparser, '_ns_stack'): |
| # work around bug in built-in SAX parser (doesn't recognize xml: namespace) |
| # PyXML doesn't have this problem, and it doesn't have _ns_stack either |
| saxparser._ns_stack.append({'http://www.w3.org/XML/1998/namespace':'xml'}) |
| try: |
| saxparser.parse(source) |
| except Exception, e: |
| if _debug: |
| import traceback |
| traceback.print_stack() |
| traceback.print_exc() |
| sys.stderr.write('xml parsing failed\n') |
| result['bozo'] = 1 |
| result['bozo_exception'] = feedparser.exc or e |
| use_strict_parser = 0 |
| if not use_strict_parser: |
| feedparser = _LooseFeedParser(baseuri, baselang, known_encoding and 'utf-8' or '') |
| feedparser.feed(data) |
| result['feed'] = feedparser.feeddata |
| result['entries'] = feedparser.entries |
| result['version'] = result['version'] or feedparser.version |
| result['namespaces'] = feedparser.namespacesInUse |
| return result |
| |
| if __name__ == '__main__': |
| if not sys.argv[1:]: |
| print __doc__ |
| sys.exit(0) |
| else: |
| urls = sys.argv[1:] |
| zopeCompatibilityHack() |
| from pprint import pprint |
| for url in urls: |
| print url |
| print |
| result = parse(url) |
| pprint(result) |
| print |
| |
| #REVISION HISTORY |
| #1.0 - 9/27/2002 - MAP - fixed namespace processing on prefixed RSS 2.0 elements, |
| # added Simon Fell's test suite |
| #1.1 - 9/29/2002 - MAP - fixed infinite loop on incomplete CDATA sections |
| #2.0 - 10/19/2002 |
| # JD - use inchannel to watch out for image and textinput elements which can |
| # also contain title, link, and description elements |
| # JD - check for isPermaLink='false' attribute on guid elements |
| # JD - replaced openAnything with open_resource supporting ETag and |
| # If-Modified-Since request headers |
| # JD - parse now accepts etag, modified, agent, and referrer optional |
| # arguments |
| # JD - modified parse to return a dictionary instead of a tuple so that any |
| # etag or modified information can be returned and cached by the caller |
| #2.0.1 - 10/21/2002 - MAP - changed parse() so that if we don't get anything |
| # because of etag/modified, return the old etag/modified to the caller to |
| # indicate why nothing is being returned |
| #2.0.2 - 10/21/2002 - JB - added the inchannel to the if statement, otherwise its |
| # useless. Fixes the problem JD was addressing by adding it. |
| #2.1 - 11/14/2002 - MAP - added gzip support |
| #2.2 - 1/27/2003 - MAP - added attribute support, admin:generatorAgent. |
| # start_admingeneratoragent is an example of how to handle elements with |
| # only attributes, no content. |
| #2.3 - 6/11/2003 - MAP - added USER_AGENT for default (if caller doesn't specify); |
| # also, make sure we send the User-Agent even if urllib2 isn't available. |
| # Match any variation of backend.userland.com/rss namespace. |
| #2.3.1 - 6/12/2003 - MAP - if item has both link and guid, return both as-is. |
| #2.4 - 7/9/2003 - MAP - added preliminary Pie/Atom/Echo support based on Sam Ruby's |
| # snapshot of July 1 <http://www.intertwingly.net/blog/1506.html>; changed |
| # project name |
| #2.5 - 7/25/2003 - MAP - changed to Python license (all contributors agree); |
| # removed unnecessary urllib code -- urllib2 should always be available anyway; |
| # return actual url, status, and full HTTP headers (as result['url'], |
| # result['status'], and result['headers']) if parsing a remote feed over HTTP -- |
| # this should pass all the HTTP tests at <http://diveintomark.org/tests/client/http/>; |
| # added the latest namespace-of-the-week for RSS 2.0 |
| #2.5.1 - 7/26/2003 - RMK - clear opener.addheaders so we only send our custom |
| # User-Agent (otherwise urllib2 sends two, which confuses some servers) |
| #2.5.2 - 7/28/2003 - MAP - entity-decode inline xml properly; added support for |
| # inline <xhtml:body> and <xhtml:div> as used in some RSS 2.0 feeds |
| #2.5.3 - 8/6/2003 - TvdV - patch to track whether we're inside an image or |
| # textInput, and also to return the character encoding (if specified) |
| #2.6 - 1/1/2004 - MAP - dc:author support (MarekK); fixed bug tracking |
| # nested divs within content (JohnD); fixed missing sys import (JohanS); |
| # fixed regular expression to capture XML character encoding (Andrei); |
| # added support for Atom 0.3-style links; fixed bug with textInput tracking; |
| # added support for cloud (MartijnP); added support for multiple |
| # category/dc:subject (MartijnP); normalize content model: 'description' gets |
| # description (which can come from description, summary, or full content if no |
| # description), 'content' gets dict of base/language/type/value (which can come |
| # from content:encoded, xhtml:body, content, or fullitem); |
| # fixed bug matching arbitrary Userland namespaces; added xml:base and xml:lang |
| # tracking; fixed bug tracking unknown tags; fixed bug tracking content when |
| # <content> element is not in default namespace (like Pocketsoap feed); |
| # resolve relative URLs in link, guid, docs, url, comments, wfw:comment, |
| # wfw:commentRSS; resolve relative URLs within embedded HTML markup in |
| # description, xhtml:body, content, content:encoded, title, subtitle, |
| # summary, info, tagline, and copyright; added support for pingback and |
| # trackback namespaces |
| #2.7 - 1/5/2004 - MAP - really added support for trackback and pingback |
| # namespaces, as opposed to 2.6 when I said I did but didn't really; |
| # sanitize HTML markup within some elements; added mxTidy support (if |
| # installed) to tidy HTML markup within some elements; fixed indentation |
| # bug in _parse_date (FazalM); use socket.setdefaulttimeout if available |
| # (FazalM); universal date parsing and normalization (FazalM): 'created', modified', |
| # 'issued' are parsed into 9-tuple date format and stored in 'created_parsed', |
| # 'modified_parsed', and 'issued_parsed'; 'date' is duplicated in 'modified' |
| # and vice-versa; 'date_parsed' is duplicated in 'modified_parsed' and vice-versa |
| #2.7.1 - 1/9/2004 - MAP - fixed bug handling " and '. fixed memory |
| # leak not closing url opener (JohnD); added dc:publisher support (MarekK); |
| # added admin:errorReportsTo support (MarekK); Python 2.1 dict support (MarekK) |
| #2.7.4 - 1/14/2004 - MAP - added workaround for improperly formed <br/> tags in |
| # encoded HTML (skadz); fixed unicode handling in normalize_attrs (ChrisL); |
| # fixed relative URI processing for guid (skadz); added ICBM support; added |
| # base64 support |
| #2.7.5 - 1/15/2004 - MAP - added workaround for malformed DOCTYPE (seen on many |
| # blogspot.com sites); added _debug variable |
| #2.7.6 - 1/16/2004 - MAP - fixed bug with StringIO importing |
| #3.0b3 - 1/23/2004 - MAP - parse entire feed with real XML parser (if available); |
| # added several new supported namespaces; fixed bug tracking naked markup in |
| # description; added support for enclosure; added support for source; re-added |
| # support for cloud which got dropped somehow; added support for expirationDate |
| #3.0b4 - 1/26/2004 - MAP - fixed xml:lang inheritance; fixed multiple bugs tracking |
| # xml:base URI, one for documents that don't define one explicitly and one for |
| # documents that define an outer and an inner xml:base that goes out of scope |
| # before the end of the document |
| #3.0b5 - 1/26/2004 - MAP - fixed bug parsing multiple links at feed level |
| #3.0b6 - 1/27/2004 - MAP - added feed type and version detection, result['version'] |
| # will be one of SUPPORTED_VERSIONS.keys() or empty string if unrecognized; |
| # added support for creativeCommons:license and cc:license; added support for |
| # full Atom content model in title, tagline, info, copyright, summary; fixed bug |
| # with gzip encoding (not always telling server we support it when we do) |
| #3.0b7 - 1/28/2004 - MAP - support Atom-style author element in author_detail |
| # (dictionary of 'name', 'url', 'email'); map author to author_detail if author |
| # contains name + email address |
| #3.0b8 - 1/28/2004 - MAP - added support for contributor |
| #3.0b9 - 1/29/2004 - MAP - fixed check for presence of dict function; added |
| # support for summary |
| #3.0b10 - 1/31/2004 - MAP - incorporated ISO-8601 date parsing routines from |
| # xml.util.iso8601 |
| #3.0b11 - 2/2/2004 - MAP - added 'rights' to list of elements that can contain |
| # dangerous markup; fiddled with decodeEntities (not right); liberalized |
| # date parsing even further |
| #3.0b12 - 2/6/2004 - MAP - fiddled with decodeEntities (still not right); |
| # added support to Atom 0.2 subtitle; added support for Atom content model |
| # in copyright; better sanitizing of dangerous HTML elements with end tags |
| # (script, frameset) |
| #3.0b13 - 2/8/2004 - MAP - better handling of empty HTML tags (br, hr, img, |
| # etc.) in embedded markup, in either HTML or XHTML form (<br>, <br/>, <br />) |
| #3.0b14 - 2/8/2004 - MAP - fixed CDATA handling in non-wellformed feeds under |
| # Python 2.1 |
| #3.0b15 - 2/11/2004 - MAP - fixed bug resolving relative links in wfw:commentRSS; |
| # fixed bug capturing author and contributor URL; fixed bug resolving relative |
| # links in author and contributor URL; fixed bug resolvin relative links in |
| # generator URL; added support for recognizing RSS 1.0; passed Simon Fell's |
| # namespace tests, and included them permanently in the test suite with his |
| # permission; fixed namespace handling under Python 2.1 |
| #3.0b16 - 2/12/2004 - MAP - fixed support for RSS 0.90 (broken in b15) |
| #3.0b17 - 2/13/2004 - MAP - determine character encoding as per RFC 3023 |
| #3.0b18 - 2/17/2004 - MAP - always map description to summary_detail (Andrei); |
| # use libxml2 (if available) |
| #3.0b19 - 3/15/2004 - MAP - fixed bug exploding author information when author |
| # name was in parentheses; removed ultra-problematic mxTidy support; patch to |
| # workaround crash in PyXML/expat when encountering invalid entities |
| # (MarkMoraes); support for textinput/textInput |
| #3.0b20 - 4/7/2004 - MAP - added CDF support |
| #3.0b21 - 4/14/2004 - MAP - added Hot RSS support |
| #3.0b22 - 4/19/2004 - MAP - changed 'channel' to 'feed', 'item' to 'entries' in |
| # results dict; changed results dict to allow getting values with results.key |
| # as well as results[key]; work around embedded illformed HTML with half |
| # a DOCTYPE; work around malformed Content-Type header; if character encoding |
| # is wrong, try several common ones before falling back to regexes (if this |
| # works, bozo_exception is set to CharacterEncodingOverride); fixed character |
| # encoding issues in BaseHTMLProcessor by tracking encoding and converting |
| # from Unicode to raw strings before feeding data to sgmllib.SGMLParser; |
| # convert each value in results to Unicode (if possible), even if using |
| # regex-based parsing |
| #3.0b23 - 4/21/2004 - MAP - fixed UnicodeDecodeError for feeds that contain |
| # high-bit characters in attributes in embedded HTML in description (thanks |
| # Thijs van de Vossen); moved guid, date, and date_parsed to mapped keys in |
| # FeedParserDict; tweaked FeedParserDict.has_key to return True if asking |
| # about a mapped key |
| #3.0fc1 - 4/23/2004 - MAP - made results.entries[0].links[0] and |
| # results.entries[0].enclosures[0] into FeedParserDict; fixed typo that could |
| # cause the same encoding to be tried twice (even if it failed the first time); |
| # fixed DOCTYPE stripping when DOCTYPE contained entity declarations; |
| # better textinput and image tracking in illformed RSS 1.0 feeds |
| #3.0fc2 - 5/10/2004 - MAP - added and passed Sam's amp tests; added and passed |
| # my blink tag tests |
| #3.0fc3 - 6/18/2004 - MAP - fixed bug in _changeEncodingDeclaration that |
| # failed to parse utf-16 encoded feeds; made source into a FeedParserDict; |
| # duplicate admin:generatorAgent/@rdf:resource in generator_detail.url; |
| # added support for image; refactored parse() fallback logic to try other |
| # encodings if SAX parsing fails (previously it would only try other encodings |
| # if re-encoding failed); remove unichr madness in normalize_attrs now that |
| # we're properly tracking encoding in and out of BaseHTMLProcessor; set |
| # feed.language from root-level xml:lang; set entry.id from rdf:about; |
| # send Accept header |
| #3.0 - 6/21/2004 - MAP - don't try iso-8859-1 (can't distinguish between |
| # iso-8859-1 and windows-1252 anyway, and most incorrectly marked feeds are |
| # windows-1252); fixed regression that could cause the same encoding to be |
| # tried twice (even if it failed the first time) |
| #3.0.1 - 6/22/2004 - MAP - default to us-ascii for all text/* content types; |
| # recover from malformed content-type header parameter with no equals sign |
| # ('text/xml; charset:iso-8859-1') |
| #3.1 - 6/28/2004 - MAP - added and passed tests for converting HTML entities |
| # to Unicode equivalents in illformed feeds (aaronsw); added and |
| # passed tests for converting character entities to Unicode equivalents |
| # in illformed feeds (aaronsw); test for valid parsers when setting |
| # XML_AVAILABLE; make version and encoding available when server returns |
| # a 304; add handlers parameter to pass arbitrary urllib2 handlers (like |
| # digest auth or proxy support); add code to parse username/password |
| # out of url and send as basic authentication; expose downloading-related |
| # exceptions in bozo_exception (aaronsw); added __contains__ method to |
| # FeedParserDict (aaronsw); added publisher_detail (aaronsw) |
| #3.2 - 7/3/2004 - MAP - use cjkcodecs and iconv_codec if available; always |
| # convert feed to UTF-8 before passing to XML parser; completely revamped |
| # logic for determining character encoding and attempting XML parsing |
| # (much faster); increased default timeout to 20 seconds; test for presence |
| # of Location header on redirects; added tests for many alternate character |
| # encodings; support various EBCDIC encodings; support UTF-16BE and |
| # UTF16-LE with or without a BOM; support UTF-8 with a BOM; support |
| # UTF-32BE and UTF-32LE with or without a BOM; fixed crashing bug if no |
| # XML parsers are available; added support for 'Content-encoding: deflate'; |
| # send blank 'Accept-encoding: ' header if neither gzip nor zlib modules |
| # are available |
| #3.3 - 7/15/2004 - MAP - optimize EBCDIC to ASCII conversion; fix obscure |
| # problem tracking xml:base and xml:lang if element declares it, child |
| # doesn't, first grandchild redeclares it, and second grandchild doesn't; |
| # refactored date parsing; defined public registerDateHandler so callers |
| # can add support for additional date formats at runtime; added support |
| # for OnBlog, Nate, MSSQL, Greek, and Hungarian dates (ytrewq1); added |
| # zopeCompatibilityHack() which turns FeedParserDict into a regular |
| # dictionary, required for Zope compatibility, and also makes command- |
| # line debugging easier because pprint module formats real dictionaries |
| # better than dictionary-like objects; added NonXMLContentType exception, |
| # which is stored in bozo_exception when a feed is served with a non-XML |
| # media type such as 'text/plain'; respect Content-Language as default |
| # language if not xml:lang is present; cloud dict is now FeedParserDict; |
| # generator dict is now FeedParserDict; better tracking of xml:lang, |
| # including support for xml:lang='' to unset the current language; |
| # recognize RSS 1.0 feeds even when RSS 1.0 namespace is not the default |
| # namespace; don't overwrite final status on redirects (scenarios: |
| # redirecting to a URL that returns 304, redirecting to a URL that |
| # redirects to another URL with a different type of redirect); add |
| # support for HTTP 303 redirects |
| #4.0 - MAP - support for relative URIs in xml:base attribute; fixed |
| # encoding issue with mxTidy (phopkins); preliminary support for RFC 3229; |
| # support for Atom 1.0; support for iTunes extensions; new 'tags' for |
| # categories/keywords/etc. as array of dict |
| # {'term': term, 'scheme': scheme, 'label': label} to match Atom 1.0 |
| # terminology; parse RFC 822-style dates with no time; lots of other |
| # bug fixes |
| #4.1 - MAP - removed socket timeout; added support for chardet library |