#!/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 """ __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 " __contributors__ = ["Jason Diamond ", "John Beimler ", "Fazal Majid ", "Aaron Swartz ", "Kevin Marks "] _debug = 0 # HTTP "User-Agent" header to send to servers when downloading feeds. # If you are embedding feedparser in a larger application, you should # change this to your application name and URL. USER_AGENT = "UniversalFeedParser/%s +http://feedparser.org/" % __version__ # HTTP "Accept" header to send to servers when downloading feeds. If you don't # want to send an Accept header, set this to None. ACCEPT_HEADER = "application/atom+xml,application/rdf+xml,application/rss+xml,application/x-netcdf,application/xml;q=0.9,text/xml;q=0.2,*/*;q=0.1" # List of preferred XML parsers, by SAX driver name. These will be tried first, # but if they're not installed, Python will keep searching through its own list # of pre-installed parsers until it finds one that supports everything we need. PREFERRED_XML_PARSERS = ["drv_libxml2"] # If you want feedparser to automatically run HTML markup through HTML Tidy, set # this to 1. Requires mxTidy # or utidylib . TIDY_MARKUP = 0 # List of Python interfaces for HTML Tidy, in order of preference. Only useful # if TIDY_MARKUP = 1 PREFERRED_TIDY_INTERFACES = ["uTidy", "mxTidy"] # ---------- 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): data = data.replace('&', '&') data = data.replace('>', '>') data = data.replace('<', '<') 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('' % (tag, ''.join([' %s="%s"' % t for t in 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('' % 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. pass def handle_pi(self, text): # called for each processing instruction, e.g. pass def handle_decl(self, text): pass def parse_declaration(self, i): # override internal declaration handler to handle CDATA blocks if _debug: sys.stderr.write('entering parse_declaration\n') if self.rawdata[i:i+9] == '', i) if k == -1: 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 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() 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 # 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 + '>' def feed(self, data): data = re.compile(r'', self._shorttag_replace, data) # bug [ 1399464 ] Bad regexp for _shorttag_replace data = re.sub(r'<([^<\s]+?)\s*/>', self._shorttag_replace, data) data = data.replace(''', "'") data = data.replace('"', '"') if self.encoding and type(data) == type(u''): data = data.encode(self.encoding) sgmllib.SGMLParser.feed(self, data) 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
, 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 
, tag will be 'pre' # Reconstruct the original end tag. if tag not in self.elements_no_end_tag: self.pieces.append("" % locals()) def handle_charref(self, ref): # called for each character reference, e.g. for ' ', ref will be '160' # Reconstruct the original character reference. 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. 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. # Reconstruct the original comment. self.pieces.append('' % locals()) def handle_pi(self, text): # called for each processing instruction, e.g. # Reconstruct original processing instruction. self.pieces.append('' % locals()) def handle_decl(self, text): # called for the DOCTYPE, if present, e.g. # # Reconstruct original DOCTYPE self.pieces.append('' % locals()) _new_declname_match = re.compile(r'[a-zA-Z][-_.a-zA-Z0-9:]*\s*').match def _scan_name(self, i, declstartpos): rawdata = self.rawdata n = len(rawdata) if i == n: return None, -1 m = self._new_declname_match(rawdata, i) if m: s = m.group() name = s.strip() if (i + len(s)) == n: return None, -1 # end of buffer return name.lower(), m.end() else: self.handle_data(rawdata) # self.updatepos(declstartpos, i) return None, -1 def 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(''', ''') 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 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'] 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(''): data = data.split('>', 1)[1] if data.count('= '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\d{4})').replace( 'YY', r'(?P\d\d)').replace( 'MM', r'(?P[01]\d)').replace( 'DD', r'(?P[0123]\d)').replace( 'OOO', r'(?P[0123]\d\d)').replace( 'CC', r'(?P\d\d$)') + r'(T?(?P\d{2}):(?P\d{2})' + r'(:(?P\d{2}))?' + r'(?P[+-](?P\d{2})(:(?P\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\d\d\d\d)' '(?:(?P-|)' '(?:(?P\d\d\d)' '|(?P\d\d)(?:(?P=dsep)(?P\d\d))?))?') __tzd_re = '(?P[-+](?P\d\d)(?::?(?P\d\d))|Z)' __tzd_rx = re.compile(__tzd_re) __time_re = ('(?P\d\d)(?P:|)(?P\d\d)' '(?:(?P=tsep)(?P\d\d(?:[.,]\d+)?))?' + __tzd_re) __datetime_re = '%s(?:T%s)?' % (__date_re, __time_re) __datetime_rx = re.compile(__datetime_re) m = __datetime_rx.match(dateString) if (m is None) or (m.group() != dateString): return gmt = __extract_date(m) + __extract_time(m) + (0, 0, 0) if gmt[0] == 0: return return time.gmtime(time.mktime(gmt) + __extract_tzd(m) - time.timezone) registerDateHandler(_parse_date_w3dtf) def _parse_date_rfc822(dateString): '''Parse an RFC822, RFC1123, RFC2822, or asctime-style date''' data = dateString.split() if data[0][-1] in (',', '.') or data[0].lower() in rfc822._daynames: del data[0] if len(data) == 4: s = data[3] i = s.find('+') if i > 0: data[3:] = [s[:i], s[i+1:]] else: data.append('') dateString = " ".join(data) 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 = '''''' 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']*?)>', re.MULTILINE) data = entity_pattern.sub('', data) doctype_pattern = re.compile(r']*?)>', 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 ; 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 ; # 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 and 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 # 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
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 (
,
,
) #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