+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