From f939e0e6798f4a2ea2857f37367ef3dc02f6cb22 Mon Sep 17 00:00:00 2001 From: Jeremy Fincher Date: Thu, 30 Sep 2004 07:57:31 +0000 Subject: [PATCH] Updated to the newest feedparser. --- others/rssparser.py | 3021 ++++++++++++++++++++++++++++++++++--------- 1 file changed, 2432 insertions(+), 589 deletions(-) diff --git a/others/rssparser.py b/others/rssparser.py index fccfd0cb3..c110bfc92 100644 --- a/others/rssparser.py +++ b/others/rssparser.py @@ -1,444 +1,463 @@ -"""Ultra-liberal feed parser +#!/usr/bin/env python +"""Universal feed parser -Visit http://diveintomark.org/projects/feed_parser/ for the latest version +Handles RSS 0.9x, RSS 1.0, RSS 2.0, CDF, Atom feeds -Handles RSS 0.9x, RSS 1.0, RSS 2.0, Pie/Atom/Echo feeds +Visit http://feedparser.org/ for the latest version +Visit http://feedparser.org/docs/ for the latest documentation -RSS 0.9x/common elements: -- title, link, guid, description, webMaster, managingEditor, language - copyright, lastBuildDate, pubDate - -Additional RSS 1.0/2.0 elements: -- dc:rights, dc:language, dc:creator, dc:date, dc:subject, - content:encoded, admin:generatorAgent, admin:errorReportsTo, - -Addition Pie/Atom/Echo elements: -- subtitle, created, issued, modified, summary, id, content - -Things it handles that choke other parsers: -- bastard combinations of RSS 0.9x and RSS 1.0 -- illegal XML characters -- naked and/or invalid HTML in description -- content:encoded in item element -- guid in item element -- fullitem in item element -- non-standard namespaces -- inline XML in content (Pie/Atom/Echo) -- multiple content items per entry (Pie/Atom/Echo) - -Requires Python 2.2 or later +Required: Python 2.1 or later +Recommended: Python 2.3 or later +Recommended: CJKCodecs and iconv_codec """ -__version__ = "2.5.3" -__author__ = "Mark Pilgrim " -__copyright__ = "Copyright 2002-3, Mark Pilgrim" -__contributors__ = ["Jason Diamond ", - "John Beimler "] +#__version__ = "pre-3.3-" + "$Revision$"[11:15] + "-cvs" +__version__ = "3.3" __license__ = "Python" -__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 ; 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) -""" +__copyright__ = "Copyright 2002-4, Mark Pilgrim" +__author__ = "Mark Pilgrim " +__contributors__ = ["Jason Diamond ", + "John Beimler ", + "Fazal Majid ", + "Aaron Swartz "] +_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. This is off by default because of reports of crashing on some +# platforms. If it crashes for you, please submit a bug report with your OS +# platform, Python version, and the URL of the feed you were attempting to parse. +# Requires mxTidy +TIDY_MARKUP = 0 + +# ---------- required modules (should come with any Python distribution) ---------- +import sgmllib, re, sys, copy, urlparse, time, rfc822, types, cgi +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 + +# timeoutsocket allows feedparser to time out rather than hang forever on ultra-slow servers. +# Python 2.3 now has this functionality available in the standard socket library, so under +# 2.3 you don't need to install anything. But you probably should anyway, because the socket +# module is buggy and timeoutsocket is better. try: import timeoutsocket # http://www.timo-tasi.org/python/timeoutsocket.py - timeoutsocket.setDefaultSocketTimeout(10) + timeoutsocket.setDefaultSocketTimeout(20) except ImportError: + import socket + if hasattr(socket, 'setdefaulttimeout'): + socket.setdefaulttimeout(20) +import urllib, urllib2 + +_mxtidy = None +if TIDY_MARKUP: + try: + from mx.Tidy import Tidy as _mxtidy + except: + pass + +# 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 -import cgi, re, sgmllib, string, StringIO, gzip, urllib2 +try: + import iconv_codec +except: + pass + +# ---------- don't touch these ---------- +class CharacterEncodingOverride(Exception): pass +class CharacterEncodingUnknown(Exception): pass +class NonXMLContentType(Exception): pass + sgmllib.tagfind = re.compile('[a-zA-Z][-_.:a-zA-Z0-9]*') +sgmllib.special = re.compile('') - data = data.replace('"', '"') - data = data.replace(''', "'") - data = data.replace('&', '&') - return data +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 FeedParser(sgmllib.SGMLParser): - namespaces = {"http://backend.userland.com/rss": "", +class FeedParserDict(UserDict): + def __getitem__(self, key): + keymap = {'channel': 'feed', + 'items': 'entries', + 'guid': 'id', + 'date': 'modified', + 'date_parsed': 'modified_parsed', + 'description': ['tagline', 'summary']} + realkey = keymap.get(key, key) + if type(realkey) == types.ListType: + for k in realkey: + if UserDict.has_key(self, k): + return UserDict.__getitem__(self, k) + return UserDict.__getitem__(self, key) + return UserDict.__getitem__(self, realkey) + + def has_key(self, key): + return hasattr(self, key) or UserDict.has_key(self, key) + + def __getattr__(self, key): + try: + return self.__dict__[key] + except KeyError: + pass + try: + return self.__getitem__(key) + except: + raise AttributeError, "object has no attribute '%s'" % key + + 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) + +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/rss/1.0/modules/textinput/": "ti", - "http://purl.org/rss/1.0/modules/company/": "co", - "http://purl.org/rss/1.0/modules/syndication/": "sy", - "http://purl.org/dc/elements/1.1/": "dc", - "http://webns.net/mvcb/": "admin", - "http://www.w3.org/1999/xhtml": "xhtml"} + "http://purl.org/atom/ns#": "", + "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://postneo.com/icbm/": "icbm", + "http://purl.org/rss/1.0/modules/image/": "image", + "http://xmlns.com/foaf/0.1/": "foaf", + "http://freshmeat.net/rss/fm/": "fm", + "http://purl.org/rss/1.0/modules/link/": "l", + "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://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://schemas.xmlsoap.org/soap/envelope/": "soap", + "http://www.w3.org/1999/xhtml": "xhtml", + "http://www.w3.org/XML/1998/namespace": "xml" +} - def reset(self): - self.channel = {} - self.items = [] - self.elementstack = [] - self.inchannel = 0 - self.initem = 0 + can_be_relative_uri = ['link', 'id', 'wfw_comment', 'wfw_commentrss', 'docs', 'url', 'comments', 'license'] + can_contain_relative_uris = ['content', 'title', 'summary', 'info', 'tagline', 'copyright', 'description'] + can_contain_dangerous_markup = ['content', 'title', 'summary', 'info', 'tagline', 'copyright', '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") + 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 + + # the following are used internally to track state; + # some of this is kind of out of control and should + # probably be refactored into a finite state machine + self.infeed = 0 + self.inentry = 0 self.incontent = 0 self.intextinput = 0 self.inimage = 0 - self.contentmode = None - self.contenttype = None - self.contentlang = None + self.inauthor = 0 + self.incontributor = 0 + self.contentparams = FeedParserDict() self.namespacemap = {} - sgmllib.SGMLParser.reset(self) - - def push(self, element, expectingText): - self.elementstack.append([element, expectingText, []]) - - def pop(self, element): - if not self.elementstack: return - if self.elementstack[-1][0] != element: return - element, expectingText, pieces = self.elementstack.pop() - if not expectingText: return - output = "".join(pieces) - output = decodeEntities(output) - if self.incontent and self.initem: - if not self.items[-1].has_key(element): - self.items[-1][element] = [] - self.items[-1][element].append({"language":self.contentlang, "type":self.contenttype, "value":output}) - elif self.initem: - self.items[-1][element] = output - elif self.inchannel and (not self.intextinput) and (not self.inimage): - self.channel[element] = output - - def _addNamespaces(self, attrs): - for prefix, value in attrs: - if not prefix.startswith("xmlns:"): continue - prefix = prefix[6:] - if prefix.find('backend.userland.com/rss') <> -1: - # match any backend.userland.com namespace - prefix = 'http://backend.userland.com/rss' - if self.namespaces.has_key(value): - self.namespacemap[prefix] = self.namespaces[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, attrs, name): - value = [v for k, v in attrs if self._mapToStandardPrefix(k) == name] - if value: - value = value[0] - else: - value = None - return value - - def start_channel(self, attrs): - self.push('channel', 0) - self.inchannel = 1 - - def end_channel(self): - self.pop('channel') - self.inchannel = 0 - - def start_image(self, attrs): - self.inimage = 1 - - def end_image(self): - self.inimage = 0 - - def start_textinput(self, attrs): - self.intextinput = 1 - - def end_textinput(self): - self.intextinput = 0 - - def start_item(self, attrs): - self.items.append({}) - self.push('item', 0) - self.initem = 1 - - def end_item(self): - self.pop('item') - self.initem = 0 - - def start_dc_language(self, attrs): - self.push('language', 1) - start_language = start_dc_language - - def end_dc_language(self): - self.pop('language') - end_language = end_dc_language - - def start_dc_creator(self, attrs): - self.push('creator', 1) - start_managingeditor = start_dc_creator - start_webmaster = start_dc_creator - - def end_dc_creator(self): - self.pop('creator') - end_managingeditor = end_dc_creator - end_webmaster = end_dc_creator - - def start_dc_rights(self, attrs): - self.push('rights', 1) - start_copyright = start_dc_rights - - def end_dc_rights(self): - self.pop('rights') - end_copyright = end_dc_rights - - def start_dc_date(self, attrs): - self.push('date', 1) - start_lastbuilddate = start_dc_date - start_pubdate = start_dc_date - - def end_dc_date(self): - self.pop('date') - end_lastbuilddate = end_dc_date - end_pubdate = end_dc_date - - def start_dc_subject(self, attrs): - self.push('category', 1) - - def end_dc_subject(self): - self.pop('category') - - def start_link(self, attrs): - self.push('link', self.inchannel or self.initem) - - def end_link(self): - self.pop('link') - - def start_guid(self, attrs): - self.guidislink = ('ispermalink', 'false') not in attrs - self.push('guid', 1) - - def end_guid(self): - self.pop('guid') - if self.guidislink: - if not self.items[-1].has_key('link'): - # 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.items[-1]['link'] = self.items[-1]['guid'] - - def start_title(self, attrs): - self.push('title', self.inchannel or self.initem) - - def start_description(self, attrs): - self.push('description', self.inchannel or self.initem) - - def start_content_encoded(self, attrs): - self.push('content_encoded', 1) - start_fullitem = start_content_encoded - - def end_content_encoded(self): - self.pop('content_encoded') - end_fullitem = end_content_encoded - - def start_admin_generatoragent(self, attrs): - self.push('generator', 1) - value = self._getAttribute(attrs, 'rdf:resource') - if value: - self.elementstack[-1][2].append(value) - self.pop('generator') - - def start_feed(self, attrs): - self.inchannel = 1 - - def end_feed(self): - self.inchannel = 0 - - def start_entry(self, attrs): - self.items.append({}) - self.push('item', 0) - self.initem = 1 - - def end_entry(self): - self.pop('item') - self.initem = 0 - - def start_subtitle(self, attrs): - self.push('subtitle', 1) - - def end_subtitle(self): - self.pop('subtitle') - - def start_summary(self, attrs): - self.push('summary', 1) - - def end_summary(self): - self.pop('summary') - - def start_modified(self, attrs): - self.push('modified', 1) - - def end_modified(self): - self.pop('modified') - - def start_created(self, attrs): - self.push('created', 1) - - def end_created(self): - self.pop('created') - - def start_issued(self, attrs): - self.push('issued', 1) - - def end_issued(self): - self.pop('issued') - - def start_id(self, attrs): - self.push('id', 1) - - def end_id(self): - self.pop('id') - - def start_content(self, attrs): - self.incontent = 1 - if ('mode', 'escaped') in attrs: - self.contentmode = 'escaped' - elif ('mode', 'base64') in attrs: - self.contentmode = 'base64' - else: - self.contentmode = 'xml' - mimetype = [v for k, v in attrs if k=='type'] - if mimetype: - self.contenttype = mimetype[0] - xmllang = [v for k, v in attrs if k=='xml:lang'] - if xmllang: - self.contentlang = xmllang[0] - self.push('content', 1) - - def end_content(self): - self.pop('content') - self.incontent = 0 - self.contentmode = None - self.contenttype = None - self.contentlang = None - - def start_body(self, attrs): - self.incontent = 1 - self.contentmode = 'xml' - self.contenttype = 'application/xhtml+xml' - xmllang = [v for k, v in attrs if k=='xml:lang'] - if xmllang: - self.contentlang = xmllang[0] - self.push('content', 1) - - start_div = start_body - start_xhtml_body = start_body - start_xhtml_div = start_body - end_body = end_content - end_div = end_content - end_xhtml_body = end_content - end_xhtml_div = end_content + 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 self.incontent and self.contentmode == 'xml': - self.handle_data("<%s%s>" % (tag, "".join([' %s="%s"' % t for t in attrs]))) - return - self._addNamespaces(attrs) - colonpos = tag.find(':') - if colonpos <> -1: - prefix = tag[:colonpos] - suffix = tag[colonpos+1:] - prefix = self.namespacemap.get(prefix, prefix) - if prefix: - prefix = prefix + '_' - methodname = 'start_' + prefix + suffix - try: - method = getattr(self, methodname) - return method(attrs) - except AttributeError: - return self.push(prefix + suffix, 0) - return self.push(tag, 0) + 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 = 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(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.get('mode') == 'escaped': + # element declared itself as escaped markup, but it isn't really + self.contentparams['mode'] = 'xml' + if self.incontent and self.contentparams.get('mode') == '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, "".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', '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 self.incontent and self.contentmode == 'xml': - self.handle_data("" % tag) - return - colonpos = tag.find(':') - if colonpos <> -1: - prefix = tag[:colonpos] - suffix = tag[colonpos+1:] - prefix = self.namespacemap.get(prefix, prefix) - if prefix: - prefix = prefix + '_' - methodname = 'end_' + prefix + suffix - try: - method = getattr(self, methodname) - return method() - except AttributeError: - return self.pop(prefix + suffix) - return self.pop(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.get('mode') == 'escaped': + # element declared itself as escaped markup, but it isn't really + self.contentparams['mode'] = 'xml' + if self.incontent and self.contentparams.get('mode') == '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" - # Reconstruct the original character reference. if not self.elementstack: return - text = "&#%s;" % ref - if self.incontent and self.contentmode == 'xml': - text = cgi.escape(text) + 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" - # Reconstruct the original entity reference. if not self.elementstack: return - text = "&%s;" % ref - if self.incontent and self.contentmode == 'xml': - text = cgi.escape(text) + 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): + 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 self.incontent and self.contentmode == 'xml': - text = cgi.escape(text) + if escape and self.contentparams.get('mode') == 'xml': + text = _xmlescape(text) self.elementstack[-1][2].append(text) def handle_comment(self, text): @@ -449,12 +468,855 @@ class FeedParser(sgmllib.SGMLParser): # 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 trackNamespace(self, prefix, uri): + if (prefix, uri) == (None, 'http://my.netscape.com/rdf/simple/0.9/') and not self.version: + self.version = 'rss090' + if uri == 'http://purl.org/rss/1.0/' and not self.version: + self.version = 'rss10' + if not prefix: return + if uri.find('backend.userland.com/rss') <> -1: + # match any backend.userland.com namespace + uri = 'http://backend.userland.com/rss' + if self.namespaces.has_key(uri): + self.namespacemap[prefix] = self.namespaces[uri] + + def resolveURI(self, uri): + return urlparse.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): + if not self.elementstack: return + if self.elementstack[-1][0] != element: return + + element, expectingText, pieces = self.elementstack.pop() + output = "".join(pieces) + output = output.strip() + if not expectingText: return output + + # decode base64 content + if self.contentparams.get('mode') == 'base64' and base64: + 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 + output = self.decodeEntities(element, output) + + # resolve relative URIs within embedded markup + if 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.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) == types.StringType): + try: + output = unicode(output, self.encoding) + except: + pass + + # store output in appropriate place(s) + if self.inentry: + if element == 'content': + self.entries[-1].setdefault(element, []) + contentparams = copy.deepcopy(self.contentparams) + contentparams['value'] = output + self.entries[-1][element].append(contentparams) + elif element == 'category': + self.entries[-1][element] = output + domain = self.entries[-1]['categories'][-1][0] + self.entries[-1]['categories'][-1] = (domain, output) + elif element == 'source': + self.entries[-1]['source']['value'] = output + 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 and (not self.intextinput) and (not self.inimage): + if element == 'description': + element = 'tagline' + self.feeddata[element] = output + if element == 'category': + domain = self.feeddata['categories'][-1][0] + self.feeddata['categories'][-1] = (domain, output) + elif element == 'link': + self.feeddata['links'][-1]['href'] = output + elif self.incontent: + contentparams = copy.deepcopy(self.contentparams) + contentparams['value'] = output + self.feeddata[element + '_detail'] = contentparams + return output + + 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 _save(self, key, value): + if self.inentry: + self.entries[-1].setdefault(key, value) + elif self.feeddata: + self.feeddata.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 + + 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 + + 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_name(self, attrsD): + self.push('name', 0) + + def _end_name(self): + value = self.pop('name') + if 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 + + 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('url', 1) + _start_homepage = _start_url + _start_uri = _start_url + + def _end_url(self): + value = self.pop('url') + if self.inauthor: + self._save_author('url', value) + elif self.incontributor: + self._save_contributor('url', value) + elif self.inimage: + context = self._getContext() + context['image']['url'] = 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) + + def _end_email(self): + value = self.pop('email') + if self.inauthor: + self._save_author('email', value) + elif self.incontributor: + self._save_contributor('email', value) + pass + + def _getContext(self): + if self.inentry: + context = self.entries[-1] + else: + context = self.feeddata + return context + + def _save_author(self, key, value): + context = self._getContext() + context.setdefault('author_detail', FeedParserDict()) + context['author_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_tagline(self, attrsD): + self.incontent += 1 + self.contentparams = FeedParserDict({'mode': attrsD.get('mode', 'escaped'), + 'type': attrsD.get('type', 'text/plain'), + 'language': self.lang, + 'base': self.baseuri}) + self.push('tagline', 1) + _start_subtitle = _start_tagline + + def _end_tagline(self): + value = self.pop('tagline') + self.incontent -= 1 + self.contentparams.clear() + if self.infeed: + self.feeddata['description'] = value + _end_subtitle = _end_tagline + + def _start_copyright(self, attrsD): + self.incontent += 1 + self.contentparams = FeedParserDict({'mode': attrsD.get('mode', 'escaped'), + 'type': attrsD.get('type', 'text/plain'), + 'language': self.lang, + 'base': self.baseuri}) + self.push('copyright', 1) + _start_dc_rights = _start_copyright + + def _end_copyright(self): + self.pop('copyright') + self.incontent -= 1 + self.contentparams.clear() + _end_dc_rights = _end_copyright + + 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_dcterms_issued(self, attrsD): + self.push('issued', 1) + _start_issued = _start_dcterms_issued + + def _end_dcterms_issued(self): + value = self.pop('issued') + self._save('issued_parsed', _parse_date(value)) + _end_issued = _end_dcterms_issued + + def _start_dcterms_created(self, attrsD): + self.push('created', 1) + _start_created = _start_dcterms_created + + def _end_dcterms_created(self): + value = self.pop('created') + self._save('created_parsed', _parse_date(value)) + _end_created = _end_dcterms_created + + def _start_dcterms_modified(self, attrsD): + self.push('modified', 1) + _start_modified = _start_dcterms_modified + _start_dc_date = _start_dcterms_modified + _start_pubdate = _start_dcterms_modified + + def _end_dcterms_modified(self): + value = self.pop('modified') + parsed_value = _parse_date(value) + self._save('modified_parsed', parsed_value) + _end_modified = _end_dcterms_modified + _end_dc_date = _end_dcterms_modified + _end_pubdate = _end_dcterms_modified + + 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 _start_category(self, attrsD): + self.push('category', 1) + domain = self._getAttribute(attrsD, 'domain') + cats = [] + if self.inentry: + cats = self.entries[-1].setdefault('categories', []) + elif self.infeed: + cats = self.feeddata.setdefault('categories', []) + cats.append((domain, None)) + _start_dc_subject = _start_category + _start_keywords = _start_category + + def _end_category(self): + self.pop('category') + _end_dc_subject = _end_category + _end_keywords = _end_category + + def _start_cloud(self, attrsD): + self.feeddata['cloud'] = FeedParserDict(attrsD) + + def _start_link(self, attrsD): + attrsD.setdefault('rel', 'alternate') + attrsD.setdefault('type', 'text/html') + if attrsD.has_key('href'): + attrsD['href'] = self.resolveURI(attrsD['href']) + expectingText = self.infeed or self.inentry + if self.inentry: + self.entries[-1].setdefault('links', []) + self.entries[-1]['links'].append(FeedParserDict(attrsD)) + elif self.infeed: + self.feeddata.setdefault('links', []) + self.feeddata['links'].append(FeedParserDict(attrsD)) + if attrsD.has_key('href'): + expectingText = 0 + if attrsD.get('type', '') in self.html_types: + if self.inentry: + self.entries[-1]['link'] = attrsD['href'] + elif self.infeed: + self.feeddata['link'] = attrsD['href'] + else: + self.push('link', expectingText) + _start_producturl = _start_link + + def _end_link(self): + value = self.pop('link') + if self.intextinput: + context = self._getContext() + context['textinput']['link'] = value + if self.inimage: + context = self._getContext() + 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_id(self, attrsD): + self.push('id', 1) + + def _end_id(self): + value = self.pop('id') + + def _start_title(self, attrsD): + self.incontent += 1 + if _debug: sys.stderr.write('attrsD.xml:lang = %s\n' % attrsD.get('xml:lang')) + if _debug: sys.stderr.write('self.lang = %s\n' % self.lang) + self.contentparams = FeedParserDict({'mode': attrsD.get('mode', 'escaped'), + 'type': attrsD.get('type', 'text/plain'), + 'language': self.lang, + 'base': self.baseuri}) + self.push('title', self.infeed or self.inentry) + _start_dc_title = _start_title + + def _end_title(self): + value = self.pop('title') + self.incontent -= 1 + self.contentparams.clear() + if self.intextinput: + context = self._getContext() + context['textinput']['title'] = value + elif self.inimage: + context = self._getContext() + context['image']['title'] = value + _end_dc_title = _end_title + + def _start_description(self, attrsD, default_content_type='text/html'): + self.incontent += 1 + self.contentparams = FeedParserDict({'mode': attrsD.get('mode', 'escaped'), + 'type': attrsD.get('type', default_content_type), + 'language': self.lang, + 'base': self.baseuri}) + self.push('description', self.infeed or self.inentry) + + def _start_abstract(self, attrsD): + return self._start_description(attrsD, 'text/plain') + + def _end_description(self): + value = self.pop('description') + self.incontent -= 1 + self.contentparams.clear() + context = self._getContext() + if self.intextinput: + context['textinput']['description'] = value + elif self.inimage: + context['image']['description'] = value +# elif self.inentry: +# context['summary'] = value +# elif self.infeed: +# context['tagline'] = value + _end_abstract = _end_description + + def _start_info(self, attrsD): + self.incontent += 1 + self.contentparams = FeedParserDict({'mode': attrsD.get('mode', 'escaped'), + 'type': attrsD.get('type', 'text/plain'), + 'language': self.lang, + 'base': self.baseuri}) + self.push('info', 1) + + def _end_info(self): + self.pop('info') + self.incontent -= 1 + self.contentparams.clear() + + def _start_generator(self, attrsD): + if attrsD: + if attrsD.has_key('url'): + attrsD['url'] = self.resolveURI(attrsD['url']) + self.feeddata['generator_detail'] = FeedParserDict(attrsD) + self.push('generator', 1) + + def _end_generator(self): + value = self.pop('generator') + if self.feeddata.has_key('generator_detail'): + self.feeddata['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.feeddata['generator_detail'] = FeedParserDict({"url": 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): + self.incontent += 1 + self.contentparams = FeedParserDict({'mode': attrsD.get('mode', 'escaped'), + 'type': attrsD.get('type', 'text/plain'), + 'language': self.lang, + 'base': self.baseuri}) + self.push('summary', 1) + + def _end_summary(self): + value = self.pop('summary') + if self.entries: + self.entries[-1]['description'] = value + self.incontent -= 1 + self.contentparams.clear() + + def _start_enclosure(self, attrsD): + if self.inentry: + self.entries[-1].setdefault('enclosures', []) + self.entries[-1]['enclosures'].append(FeedParserDict(attrsD)) + + def _start_source(self, attrsD): + if self.inentry: + self.entries[-1]['source'] = FeedParserDict(attrsD) + self.push('source', 1) + + def _end_source(self): + self.pop('source') + + def _start_content(self, attrsD): + self.incontent += 1 + self.contentparams = FeedParserDict({'mode': attrsD.get('mode', 'xml'), + 'type': attrsD.get('type', 'text/plain'), + 'language': self.lang, + 'base': self.baseuri}) + self.push('content', 1) + + def _start_prodlink(self, attrsD): + self.incontent += 1 + self.contentparams = FeedParserDict({'mode': attrsD.get('mode', 'xml'), + 'type': attrsD.get('type', 'text/html'), + 'language': self.lang, + 'base': self.baseuri}) + self.push('content', 1) + + def _start_body(self, attrsD): + self.incontent += 1 + self.contentparams = FeedParserDict({'mode': 'xml', + 'type': 'application/xhtml+xml', + 'language': self.lang, + 'base': self.baseuri}) + self.push('content', 1) + _start_xhtml_body = _start_body + + def _start_content_encoded(self, attrsD): + self.incontent += 1 + self.contentparams = FeedParserDict({'mode': 'escaped', + 'type': 'text/html', + 'language': self.lang, + 'base': self.baseuri}) + self.push('content', 1) + _start_fullitem = _start_content_encoded + + def _end_content(self): + value = self.pop('content') + if self.contentparams.get('type') in (['text/plain'] + self.html_types): + self._save('description', value) + self.incontent -= 1 + self.contentparams.clear() + _end_body = _end_content + _end_xhtml_body = _end_content + _end_content_encoded = _end_content + _end_fullitem = _end_content + _end_prodlink = _end_content + +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 + namespace = str(namespace or '') + if namespace.find('backend.userland.com/rss') <> -1: + # match any backend.userland.com namespace + namespace = 'http://backend.userland.com/rss' + prefix = self.namespaces.get(namespace, 'unknown') + if prefix: + localname = prefix + ':' + localname + localname = str(localname).lower() + + # qname implementation is horribly broken in Python 2.1 (it + # doesn't report any), and slightly broken in Python 2.2 (it + # doesn't report the xml: namespace). So we match up namespaces + # with a known list first, and then possibly override them with + # the qnames the SAX parser gives us (if indeed it gives us any + # at all). Thanks to MatejC for helping me test this and + # tirelessly telling me that it didn't work yet. + attrsD = {} + for (namespace, attrlocalname), attrvalue in attrs._attrs.items(): + prefix = self.namespaces.get(namespace, '') + 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 resolveEntity(self, publicId, systemId): +# return _StringIO() + + def characters(self, text): + self.handle_data(text) + + def endElementNS(self, name, qname): + namespace, localname = name + namespace = str(namespace) + prefix = self.namespaces.get(namespace, '') + 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 feed(self, data): + data = re.compile(r'', r'<\1>', data) + data = data.replace(''', "'") + data = data.replace('"', '"') + if self.encoding and (type(data) == types.UnicodeType): + 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] +# if self.encoding: +# if _debug: sys.stderr.write('normalize_attrs, encoding=%s\n' % self.encoding) +# attrs = [(k, v.encode(self.encoding)) 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)
+        strattrs = "".join([' %s="%s"' % (key, value) for key, value in attrs])
+        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. # - pass - + # 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 @@ -467,46 +1329,185 @@ class FeedParser(sgmllib.SGMLParser): name = s.strip() if (i + len(s)) == n: return None, -1 # end of buffer - return string.lower(name), m.end() + return name.lower(), m.end() else: - self.updatepos(declstartpos, i) - self.error("expected name token") + self.handle_data(rawdata) +# self.updatepos(declstartpos, i) + return None, -1 - def parse_declaration(self, i): - # override internal declaration handler to handle CDATA blocks - if self.rawdata[i:i+9] == '', i) - if k == -1: k = len(self.rawdata) - self.handle_data(cgi.escape(self.rawdata[i+9:k])) - return k+3 - return sgmllib.SGMLParser.parse_declaration(self, i) + def output(self): + """Return processed HTML as a single string""" + return "".join([str(p) for p in self.pieces]) -class FeedURLHandler(urllib2.HTTPRedirectHandler, urllib2.HTTPDefaultErrorHandler): +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.get('mode') == 'escaped': + 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 urlparse.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 _mxtidy and TIDY_MARKUP: + nerrors, nwarnings, data, errordata = _mxtidy.tidy(data, output_xhtml=1, numeric_entities=1, wrap=0) + if data.count(''): + data = data.split('>', 1)[1] + if data.count(' stream + +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) @@ -527,190 +1528,834 @@ def open_resource(source, etag=None, modified=None, agent=None, referrer=None): 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(source, "read"): - return source + if hasattr(url_file_stream_or_string, "read"): + return url_file_stream_or_string -## Not appropriate. I wish this module advertised that it did this. -## Hah! Incidentally, even if it were appropriate, Mr. Pilgrim forgot to -## import sys. Double suckage! -## if source == "-": -## return sys.stdin + if url_file_stream_or_string == "-": + return sys.stdin - if not agent: - agent = USER_AGENT - - # try to open with urllib2 (to use optional headers) - request = urllib2.Request(source) - if etag: - request.add_header("If-None-Match", etag) - if modified: - request.add_header("If-Modified-Since", format_http_date(modified)) - request.add_header("User-Agent", agent) - if referrer: - request.add_header("Referer", referrer) - request.add_header("Accept-encoding", "gzip") - opener = urllib2.build_opener(FeedURLHandler()) - opener.addheaders = [] # RMK - must clear so we only send our custom User-Agent + 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) + 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 opener.open(request) + return open(url_file_stream_or_string) except: - # source is not a valid URL, but it might be a valid filename - # jemfinch: yeah, right. Like we're going to allow that. Eat - # this, Mark Pilgrim! pass -## # Dumb dumb dumb! -## # try to open with native open function (if source is a filename) -## try: -## return open(source) -## except: -## pass + # treat url_file_stream_or_string as string + return _StringIO(str(url_file_stream_or_string)) -# This just feels icky to me, I'm not allowing it. -# treat source as string -## return StringIO.StringIO(str(source)) - return StringIO.StringIO('') - -def get_etag(resource): - """ - Get the ETag associated with a response returned from a call to - open_resource(). - - If the resource was not returned from an HTTP server or the server did - not specify an ETag for the resource, this will return None. - """ - - if hasattr(resource, "info"): - return resource.info().getheader("ETag") - return None - -def get_modified(resource): - """ - Get the Last-Modified timestamp for a response returned from a call to - open_resource(). - - If the resource was not returned from an HTTP server or the server did - not specify a Last-Modified timestamp, this function will return None. - Otherwise, it returns a tuple of 9 integers as returned by gmtime() in - the standard Python time module(). - """ - - if hasattr(resource, "info"): - last_modified = resource.info().getheader("Last-Modified") - if last_modified: - return parse_http_date(last_modified) - return None - -short_weekdays = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"] -long_weekdays = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"] -months = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"] - -def format_http_date(date): - """ - Formats a tuple of 9 integers into an RFC 1123-compliant timestamp as - required in RFC 2616. We don't use time.strftime() since the %a and %b - directives can be affected by the current locale (HTTP dates have to be - in English). The date MUST be in GMT (Greenwich Mean Time). - """ - - return "%s, %02d %s %04d %02d:%02d:%02d GMT" % (short_weekdays[date[6]], date[2], months[date[1] - 1], date[0], date[3], date[4], date[5]) - -rfc1123_match = re.compile(r"(?P[A-Z][a-z]{2}), (?P\d{2}) (?P[A-Z][a-z]{2}) (?P\d{4}) (?P\d{2}):(?P\d{2}):(?P\d{2}) GMT").match -rfc850_match = re.compile(r"(?P[A-Z][a-z]+), (?P\d{2})-(?P[A-Z][a-z]{2})-(?P\d{2}) (?P\d{2}):(?P\d{2}):(?P\d{2}) GMT").match -asctime_match = re.compile(r"(?P[A-Z][a-z]{2}) (?P[A-Z][a-z]{2}) ?(?P\d\d?) (?P\d{2}):(?P\d{2}):(?P\d{2}) (?P\d{4})").match - -def parse_http_date(date): - """ - Parses any of the three HTTP date formats into a tuple of 9 integers as - returned by time.gmtime(). This should not use time.strptime() since - that function is not available on all platforms and could also be - affected by the current locale. - """ - - date = str(date) - year = 0 - weekdays = short_weekdays - - m = rfc1123_match(date) - if not m: - m = rfc850_match(date) - if m: - year = 1900 - weekdays = long_weekdays +_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: - m = asctime_match(date) - if not m: - return None + 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: - year = year + int(m.group("year")) - month = months.index(m.group("month")) + 1 - day = int(m.group("day")) - hour = int(m.group("hour")) - minute = int(m.group("minute")) - second = int(m.group("second")) - weekday = weekdays.index(m.group("weekday")) - a = int((14 - month) / 12) - julian_day = (day - 32045 + int(((153 * (month + (12 * a) - 3)) + 2) / 5) + int((146097 * (year + 4800 - a)) / 400)) - (int((146097 * (year + 4799)) / 400) - 31738) + 1 - daylight_savings_flag = 0 - return (year, month, day, hour, minute, second, weekday, julian_day, daylight_savings_flag) + wday = _greek_wdays[m.group(1)] + month = _greek_months[m.group(3)] except: - # the month or weekday lookup probably failed indicating an invalid timestamp - return None + 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) -def parse(uri, etag=None, modified=None, agent=None, referrer=None): - r = FeedParser() - f = open_resource(uri, etag=etag, modified=modified, agent=agent, referrer=referrer) - data = f.read() - if hasattr(f, "headers"): - if f.headers.get('content-encoding', '') == 'gzip': +# 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""" + 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.StringIO(data)).read() - except: - # some feeds claim to be gzipped but they're not, so we get garbage + 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 = '' - r.feed(data) - result = {"channel": r.channel, "items": r.items} - newEtag = get_etag(f) - if newEtag: result["etag"] = newEtag - elif etag: result["etag"] = etag - newModified = get_modified(f) - if newModified: result["modified"] = newModified - elif modified: result["modified"] = modified + 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["url"] = f.url - if hasattr(f, "headers"): - result["headers"] = f.headers.dict + result["status"] = 200 if hasattr(f, "status"): result["status"] = f.status - elif hasattr(f, "url"): - result["status"] = 200 - # get the xml encoding - if result.get('encoding', '') == '': - xmlheaderRe = re.compile('<\?.*encoding="(.*)".*\?>') - match = xmlheaderRe.match(data) - if match: - result['encoding'] = match.groups()[0].lower() - f.close() + 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