#!/usr/bin/env python
"""Universal feed parser
-Visit http://diveintomark.org/projects/feed_parser/ for the latest version
-
Handles RSS 0.9x, RSS 1.0, RSS 2.0, CDF, Atom feeds
+Visit http://feedparser.org/ for the latest version
+Visit http://feedparser.org/docs/ for the latest documentation
+
Required: Python 2.1 or later
Recommended: Python 2.3 or later
-Recommended: libxml2 <http://xmlsoft.org/python.html>
+Recommended: CJKCodecs and iconv_codec <http://cjkpython.i18n.org/>
"""
-__version__ = "3.0-beta-22"
-__author__ = "Mark Pilgrim <http://diveintomark.org/>"
+#__version__ = "pre-3.3-" + "$Revision: 1.3 $"[11:15] + "-cvs"
+__version__ = "3.3"
+__license__ = "Python"
__copyright__ = "Copyright 2002-4, Mark Pilgrim"
+__author__ = "Mark Pilgrim <http://diveintomark.org/>"
__contributors__ = ["Jason Diamond <http://injektilo.org/>",
"John Beimler <http://john.beimler.org/>",
- "Fazal Majid <http://www.majid.info/mylos/weblog/>"]
-__license__ = "Python"
+ "Fazal Majid <http://www.majid.info/mylos/weblog/>",
+ "Aaron Swartz <http://aaronsw.com>"]
_debug = 0
-_debug_never_use_libxml2 = 0
-# if you are embedding feedparser in a larger application, you should change this to your application name and URL
-USER_AGENT = "UniversalFeedParser/%s%s +http://diveintomark.org/projects/feed_parser/" % (__version__, _debug and "-debug" or "")
+# HTTP "User-Agent" header to send to servers when downloading feeds.
+# If you are embedding feedparser in a larger application, you should
+# change this to your application name and URL.
+USER_AGENT = "UniversalFeedParser/%s +http://feedparser.org/" % __version__
+
+# HTTP "Accept" header to send to servers when downloading feeds. If you don't
+# want to send an Accept header, set this to None.
+ACCEPT_HEADER = "application/atom+xml,application/rdf+xml,application/rss+xml,application/x-netcdf,application/xml;q=0.9,text/xml;q=0.2,*/*;q=0.1"
-# If you want feedparser to automatically run HTML markup through HTML Tidy, set this to 1.
-# This is off by default because of reports of crashing on some platforms. If it crashes
-# for you, please submit a bug report with your OS platform, Python version, and the URL
-# of the feed you were attempting to parse.
+# List of preferred XML parsers, by SAX driver name. These will be tried first,
+# but if they're not installed, Python will keep searching through its own list
+# of pre-installed parsers until it finds one that supports everything we need.
+PREFERRED_XML_PARSERS = ["drv_libxml2"]
+
+# If you want feedparser to automatically run HTML markup through HTML Tidy, set
+# this to 1. This is off by default because of reports of crashing on some
+# platforms. If it crashes for you, please submit a bug report with your OS
+# platform, Python version, and the URL of the feed you were attempting to parse.
# Requires mxTidy <http://www.egenix.com/files/python/mxTidy.html>
TIDY_MARKUP = 0
# ---------- required modules (should come with any Python distribution) ----------
-import sgmllib, re, sys, copy, urlparse, time, rfc822, types
+import sgmllib, re, sys, copy, urlparse, time, rfc822, types, cgi
try:
from cStringIO import StringIO as _StringIO
except:
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
# 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(10)
-import urllib2
+ socket.setdefaulttimeout(20)
+import urllib, urllib2
_mxtidy = None
if TIDY_MARKUP:
except:
pass
-# If a real XML parser is available, feedparser will attempt to use it. feedparser works
-# with both the built-in SAX parser and PyXML SAX parser. 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 just fall back on regex-based parsing. If XML libraries are
-# available but the feed turns out not to be well-formed XML, feedparser will fall back
-# on regex-based parsing and set the "bozo" bit in the results to indicate that the feed
-# author is a bozo who can't generate well-formed XML. The two advantages of using a real
-# XML parser are (1) Unicode support, and (2) to get people to stop yelling at me for not
-# using one.
+# 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
- class CharacterEncodingOverride(xml.sax.SAXException): pass
_XML_AVAILABLE = 1
except:
_XML_AVAILABLE = 0
import base64, binascii
except:
base64 = binascii = None
-
+
+# cjkcodecs and iconv_codec provide support for more character encodings.
+# Both are available from http://cjkpython.i18n.org/
+try:
+ import cjkcodecs.aliases
+except:
+ pass
+try:
+ import iconv_codec
+except:
+ pass
+
# ---------- 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('<!')
+sgmllib.charref = re.compile('&#(x?[0-9A-Fa-f]+)[^0-9A-Fa-f]')
SUPPORTED_VERSIONS = {'': 'unknown',
'rss090': 'RSS 0.90',
}
try:
- dict
+ UserDict = dict
except NameError:
- # Python 2.1 does not have a built-in dict() function
+ # 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
-from UserDict import UserDict
class FeedParserDict(UserDict):
def __getitem__(self, key):
- if key == 'channel': key = 'feed'
- if key == 'items': key = 'entries'
- return UserDict.__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:
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://www.w3.org/XML/1998/namespace": "xml"
}
- can_be_relative_uri = ['link', 'id', 'wfw_comment', 'wfw_commentrss', 'docs', 'url', 'comments']
- can_contain_relative_uris = ['content', 'description', 'title', 'summary', 'info', 'tagline', 'copyright']
- can_contain_dangerous_markup = ['content', 'description', 'title', 'summary', 'info', 'tagline', 'copyright']
+ 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, encoding='utf-8'):
+ 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.basestack = []
self.langstack = []
self.baseuri = baseuri or ''
- self.lang = None
+ self.lang = baselang or None
+ if baselang:
+ self.feeddata['language'] = baselang
def unknown_starttag(self, tag, attrs):
if _debug: sys.stderr.write('start %s with %s\n' % (tag, attrs))
# normalize attrs
- attrs = [(k.lower(), sgmllib.charref.sub(lambda m: unichr(int(m.groups()[0])), v).strip()) for k, v in 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'))
- if baseuri:
- if _debug: sys.stderr.write('self.baseuri=%s\n' % baseuri)
- self.baseuri = baseuri
+ 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:
- self.lang = lang
+ if tag in ('feed', 'rss', 'rdf:RDF'):
+ self.feeddata['language'] = lang
+ self.lang = lang
self.basestack.append(baseuri)
self.langstack.append(lang)
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:
if self.basestack:
self.basestack.pop()
if self.basestack and self.basestack[-1]:
- baseuri = self.basestack[-1]
- if _debug: sys.stderr.write('self.baseuri=%s\n' % baseuri)
- self.baseuri = baseuri
+ self.baseuri = self.basestack[-1]
if self.langstack:
- lang = self.langstack.pop()
- if lang:
- self.lang = lang
+ 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
+ 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 _debug: sys.stderr.write("entering handle_entityref with %s\n" % ref)
+ if ref in ('lt', 'gt', 'quot', 'amp', 'apos'):
+ text = '&%s;' % ref
+ else:
+ # entity resolution graciously donated by Aaron Swartz
+ def name2cp(k):
+ import htmlentitydefs
+ if hasattr(htmlentitydefs, "name2codepoint"): # requires Python 2.3
+ return htmlentitydefs.name2codepoint[k]
+ k = htmlentitydefs.entitydefs[k]
+ if k.startswith("&#") and k.endswith(";"):
+ return int(k[2:-1]) # not in latin-1
+ return ord(k)
+ try: name2cp(ref)
+ except KeyError: text = "&%s;" % ref
+ else: text = unichr(name2cp(ref)).encode('utf-8')
self.elementstack[-1][2].append(text)
def handle_data(self, text, escape=1):
# called for each block of plain text, i.e. outside of any tag and
# not containing any character or entity references
if not self.elementstack: return
-# if _debug: sys.stderr.write(text)
if escape and self.contentparams.get('mode') == 'xml':
text = _xmlescape(text)
self.elementstack[-1][2].append(text)
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 (prefix, uri) == (None, 'http://purl.org/rss/1.0/') and not self.version:
+ 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:
return urlparse.urljoin(self.baseuri or '', uri)
def decodeEntities(self, element, data):
- if self.contentparams.get('mode') == 'escaped':
- data = data.replace('<', '<')
- data = data.replace('>', '>')
- data = data.replace('&', '&')
- data = data.replace('"', '"')
- data = data.replace(''', "'")
return data
-
+
def push(self, element, expectingText):
-# while self.elementstack and self.elementstack[-1][1]:
-# self.pop(self.elementstack[-1][0])
self.elementstack.append([element, expectingText, []])
def pop(self, element):
if not self.elementstack: return
-# while self.elementstack[-1][0] != element: self.pop(self.elementstack[-1][0])
if self.elementstack[-1][0] != element: return
element, expectingText, pieces = self.elementstack.pop()
output = self.decodeEntities(element, output)
# resolve relative URIs within embedded markup
- if element in self.can_contain_relative_uris:
- output = _resolveRelativeURIs(output, self.baseuri, self.encoding)
+ 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 element in self.can_contain_dangerous_markup:
- output = _sanitizeHTML(output, self.encoding)
+ 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 type(output) == types.StringType:
+ if self.encoding and (type(output) == types.StringType):
try:
output = unicode(output, self.encoding)
except:
if output:
self.entries[-1]['links'][-1]['href'] = output
else:
+ if element == 'description':
+ element = 'summary'
self.entries[-1][element] = output
if self.incontent:
- if element == 'description':
- element = 'summary'
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]
elif element == 'link':
self.feeddata['links'][-1]['href'] = output
elif self.incontent:
- if element == 'description':
- element = 'tagline'
contentparams = copy.deepcopy(self.contentparams)
contentparams['value'] = output
self.feeddata[element + '_detail'] = contentparams
return attrsD.get(self._mapToStandardPrefix(name))
def _save(self, key, value):
- if value:
- if self.inentry:
- self.entries[-1].setdefault(key, value)
- elif self.feeddata:
- self.feeddata.setdefault(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',
def _cdf_common(self, attrsD):
if attrsD.has_key('lastmod'):
- if _debug: sys.stderr.write(attrsD['lastmod'] + '\n')
self._start_modified({})
self.elementstack[-1][-1] = attrsD['lastmod']
self._end_modified()
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):
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
elif self.incontributor:
self._save_contributor('url', value)
elif self.inimage:
- # TODO
- pass
+ context = self._getContext()
+ context['image']['url'] = value
elif self.intextinput:
- # TODO (map to link)
- pass
+ context = self._getContext()
+ context['textinput']['link'] = value
_end_homepage = _end_url
_end_uri = _end_url
context.setdefault('contributors', [FeedParserDict()])
context['contributors'][-1][key] = value
- def _sync_author_detail(self):
+ def _sync_author_detail(self, key='author'):
context = self._getContext()
- detail = context.get('author_detail')
+ detail = context.get('%s_detail' % key)
if detail:
name = detail.get('name')
email = detail.get('email')
if name and email:
- context['author'] = "%s (%s)" % (name, email)
+ context[key] = "%s (%s)" % (name, email)
elif name:
- context['author'] = name
+ context[key] = name
elif email:
- context['author'] = email
+ context[key] = email
else:
- author = context.get('author')
+ 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
if author and (author[-1] == ')'):
author = author[:-1]
author = author.strip()
- context.setdefault('author_detail', FeedParserDict())
- context['author_detail']['name'] = author
- context['author_detail']['email'] = email
+ 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': attrsD.get('xml:lang', self.lang),
- 'base': attrsD.get('xml:base', self.baseuri)})
+ 'language': self.lang,
+ 'base': self.baseuri})
self.push('tagline', 1)
_start_subtitle = _start_tagline
self.incontent += 1
self.contentparams = FeedParserDict({'mode': attrsD.get('mode', 'escaped'),
'type': attrsD.get('type', 'text/plain'),
- 'language': attrsD.get('xml:lang', self.lang),
- 'base': attrsD.get('xml:base', self.baseuri)})
+ 'language': self.lang,
+ 'base': self.baseuri})
self.push('copyright', 1)
_start_dc_rights = _start_copyright
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_dc_publisher(self):
self.pop('publisher')
+ self._sync_author_detail('publisher')
_end_webmaster = _end_dc_publisher
def _start_dcterms_issued(self, attrsD):
def _end_dcterms_modified(self):
value = self.pop('modified')
- if _debug: sys.stderr.write('_end_dcterms_modified, value=' + value + '\n')
parsed_value = _parse_date(value)
- self._save('date', value)
- self._save('date_parsed', parsed_value)
self._save('modified_parsed', parsed_value)
_end_modified = _end_dcterms_modified
_end_dc_date = _end_dcterms_modified
_end_keywords = _end_category
def _start_cloud(self, attrsD):
- self.feeddata['cloud'] = attrsD
+ self.feeddata['cloud'] = FeedParserDict(attrsD)
def _start_link(self, attrsD):
attrsD.setdefault('rel', 'alternate')
expectingText = self.infeed or self.inentry
if self.inentry:
self.entries[-1].setdefault('links', [])
- self.entries[-1]['links'].append(attrsD)
+ self.entries[-1]['links'].append(FeedParserDict(attrsD))
elif self.infeed:
self.feeddata.setdefault('links', [])
- self.feeddata['links'].append(attrsD)
+ self.feeddata['links'].append(FeedParserDict(attrsD))
if attrsD.has_key('href'):
expectingText = 0
if attrsD.get('type', '') in self.html_types:
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('guid', 1)
+ self.push('id', 1)
def _end_guid(self):
- value = self.pop('guid')
- self._save('id', value)
+ 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
def _end_id(self):
value = self.pop('id')
- self._save('guid', value)
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': attrsD.get('xml:lang', self.lang),
- 'base': attrsD.get('xml:base', self.baseuri)})
+ 'language': self.lang,
+ 'base': self.baseuri})
self.push('title', self.infeed or self.inentry)
_start_dc_title = _start_title
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': attrsD.get('xml:lang', self.lang),
- 'base': attrsD.get('xml:base', self.baseuri)})
+ 'language': self.lang,
+ 'base': self.baseuri})
self.push('description', self.infeed or self.inentry)
def _start_abstract(self, attrsD):
context = self._getContext()
if self.intextinput:
context['textinput']['description'] = value
- elif self.inentry:
- context['summary'] = value
- elif self.infeed:
- context['tagline'] = 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': attrsD.get('xml:lang', self.lang),
- 'base': attrsD.get('xml:base', self.baseuri)})
+ 'language': self.lang,
+ 'base': self.baseuri})
self.push('info', 1)
def _end_info(self):
if attrsD:
if attrsD.has_key('url'):
attrsD['url'] = self.resolveURI(attrsD['url'])
- self.feeddata['generator_detail'] = attrsD
+ self.feeddata['generator_detail'] = FeedParserDict(attrsD)
self.push('generator', 1)
def _end_generator(self):
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)
self.incontent += 1
self.contentparams = FeedParserDict({'mode': attrsD.get('mode', 'escaped'),
'type': attrsD.get('type', 'text/plain'),
- 'language': attrsD.get('xml:lang', self.lang),
- 'base': attrsD.get('xml:base', self.baseuri)})
+ 'language': self.lang,
+ 'base': self.baseuri})
self.push('summary', 1)
def _end_summary(self):
def _start_enclosure(self, attrsD):
if self.inentry:
self.entries[-1].setdefault('enclosures', [])
- self.entries[-1]['enclosures'].append(attrsD)
+ self.entries[-1]['enclosures'].append(FeedParserDict(attrsD))
def _start_source(self, attrsD):
if self.inentry:
- self.entries[-1]['source'] = attrsD
+ self.entries[-1]['source'] = FeedParserDict(attrsD)
self.push('source', 1)
def _end_source(self):
self.incontent += 1
self.contentparams = FeedParserDict({'mode': attrsD.get('mode', 'xml'),
'type': attrsD.get('type', 'text/plain'),
- 'language': attrsD.get('xml:lang', self.lang),
- 'base': attrsD.get('xml:base', self.baseuri)})
+ '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': attrsD.get('xml:lang', self.lang),
- 'base': attrsD.get('xml:base', self.baseuri)})
+ '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': attrsD.get('xml:lang', self.lang),
- 'base': attrsD.get('xml:base', self.baseuri)})
+ 'language': self.lang,
+ 'base': self.baseuri})
self.push('content', 1)
_start_xhtml_body = _start_body
self.incontent += 1
self.contentparams = FeedParserDict({'mode': 'escaped',
'type': 'text/html',
- 'language': attrsD.get('xml:lang', self.lang),
- 'base': attrsD.get('xml:base', self.baseuri)})
+ 'language': self.lang,
+ 'base': self.baseuri})
self.push('content', 1)
_start_fullitem = _start_content_encoded
_end_prodlink = _end_content
if _XML_AVAILABLE:
- class _StrictFeedParser(_FeedParserMixin, xml.sax.handler.ContentHandler, xml.sax.handler.EntityResolver):#, xml.sax.handler.DTDHandler):
- def __init__(self, baseuri, encoding):
+ 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, encoding)
+ _FeedParserMixin.__init__(self, baseuri, baselang, encoding)
self.bozo = 0
self.exc = None
attrsD[str(qname).lower()] = attrs.getValueByQName(qname)
self.unknown_starttag(localname, attrsD.items())
- def resolveEntity(self, publicId, systemId):
- return _StringIO()
+# def resolveEntity(self, publicId, systemId):
+# return _StringIO()
def characters(self, text):
self.handle_data(text)
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):
data = re.sub(r'<(\S+)/>', r'<\1></\1>', data)
data = data.replace(''', "'")
data = data.replace('"', '"')
- if type(data) == types.UnicodeType:
+ 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(), sgmllib.charref.sub(lambda m: unichr(int(m.groups()[0])), v).strip()) for k, v in attrs]
+ 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
_new_declname_match = re.compile(r'[a-zA-Z][-_.a-zA-Z0-9:]*\s*').match
def _scan_name(self, i, declstartpos):
rawdata = self.rawdata
- if _debug: sys.stderr.write("i=%s, declstartpos=%s, rawdata=%s\n" % (i, declstartpos, rawdata))
n = len(rawdata)
if i == n:
return None, -1
def output(self):
"""Return processed HTML as a single string"""
- if _debug:
- for p in self.pieces:
- sys.stderr.write(p)
- sys.stderr.write('\n')
return "".join([str(p) for p in self.pieces])
class _LooseFeedParser(_FeedParserMixin, _BaseHTMLProcessor):
- def __init__(self, baseuri, encoding):
+ def __init__(self, baseuri, baselang, encoding):
sgmllib.SGMLParser.__init__(self)
- _FeedParserMixin.__init__(self, baseuri, encoding)
+ _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'),
def _resolveRelativeURIs(htmlSource, baseURI, encoding):
if _debug: sys.stderr.write("entering _resolveRelativeURIs\n")
p = _RelativeURIResolver(baseURI, encoding)
- if _debug: sys.stderr.write(repr(type(htmlSource)) + '\n')
p.feed(htmlSource)
return p.output()
def http_error_default(self, req, fp, code, msg, headers):
if ((code / 100) == 3) and (code != 304):
return self.http_error_302(req, fp, code, msg, headers)
- from urllib import addinfourl
- infourl = addinfourl(fp, headers, req.get_full_url())
+ infourl = urllib.addinfourl(fp, headers, req.get_full_url())
infourl.status = code
return infourl
def http_error_302(self, req, fp, code, msg, headers):
- infourl = urllib2.HTTPRedirectHandler.http_error_302(self, req, fp, code, msg, headers)
- infourl.status = code
+ if headers.dict.has_key('location'):
+ infourl = urllib2.HTTPRedirectHandler.http_error_302(self, req, fp, code, msg, headers)
+ else:
+ infourl = urllib.addinfourl(fp, headers, req.get_full_url())
+ if not hasattr(infourl, 'status'):
+ infourl.status = code
return infourl
def http_error_301(self, req, fp, code, msg, headers):
- infourl = urllib2.HTTPRedirectHandler.http_error_301(self, req, fp, code, msg, headers)
- infourl.status = code
+ if headers.dict.has_key('location'):
+ infourl = urllib2.HTTPRedirectHandler.http_error_301(self, req, fp, code, msg, headers)
+ else:
+ infourl = urllib.addinfourl(fp, headers, req.get_full_url())
+ if not hasattr(infourl, 'status'):
+ infourl.status = code
return infourl
http_error_300 = http_error_302
+ http_error_303 = http_error_302
http_error_307 = http_error_302
-def _open_resource(url_file_stream_or_string, etag=None, modified=None, agent=None, referrer=None):
+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
If the referrer argument is supplied, it will be used as the value of a
Referer[sic] request header.
+
+ If handlers is supplied, it is a list of handlers used to build a
+ urllib2 opener.
"""
if hasattr(url_file_stream_or_string, "read"):
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)
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:
+ if gzip and zlib:
+ request.add_header("Accept-encoding", "gzip, deflate")
+ elif gzip:
request.add_header("Accept-encoding", "gzip")
- opener = urllib2.build_opener(_FeedURLHandler())
+ 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:
- try:
- return opener.open(request)
-# except ValueError:
-# # not a valid URL, but might be a valid filename
-# pass
-# except AssertionError:
-# # under Python 2.1, non-URLs will fail with an AssertionError;
-# # still might be a valid filename, so fall through
-# pass
- except:
- return _StringIO('')
+ return opener.open(request)
finally:
opener.close() # JohnD
# treat url_file_stream_or_string as string
return _StringIO(str(url_file_stream_or_string))
+_date_handlers = []
+def registerDateHandler(func):
+ """Register a date handler function (takes string, returns 9-tuple date in GMT)"""
+ _date_handlers.insert(0, func)
+
+# ISO-8601 date parsing routines written by Fazal Majid.
+# The ISO 8601 standard is very convoluted and irregular - a full ISO 8601
+# parser is beyond the scope of feedparser and would be a worthwhile addition
+# to the Python library.
+# A single regular expression cannot parse ISO 8601 date formats into groups
+# as the standard is highly irregular (for instance is 030104 2003-01-04 or
+# 0301-04-01), so we use templates instead.
+# Please note the order in templates is significant because we need a
+# greedy match.
+_iso8601_tmpl = ['YYYY-?MM-?DD', 'YYYY-MM', 'YYYY-?OOO',
+ 'YY-?MM-?DD', 'YY-?OOO', 'YYYY',
+ '-YY-?MM', '-OOO', '-YY',
+ '--MM-?DD', '--MM',
+ '---DD',
+ 'CC', '']
+_iso8601_re = [
+ tmpl.replace(
+ 'YYYY', r'(?P<year>\d{4})').replace(
+ 'YY', r'(?P<year>\d\d)').replace(
+ 'MM', r'(?P<month>[01]\d)').replace(
+ 'DD', r'(?P<day>[0123]\d)').replace(
+ 'OOO', r'(?P<ordinal>[0123]\d\d)').replace(
+ 'CC', r'(?P<century>\d\d$)')
+ + r'(T?(?P<hour>\d{2}):(?P<minute>\d{2})'
+ + r'(:(?P<second>\d{2}))?'
+ + r'(?P<tz>[+-](?P<tzhour>\d{2})(:(?P<tzmin>\d{2}))?|Z)?)?'
+ for tmpl in _iso8601_tmpl]
+del tmpl
+_iso8601_matches = [re.compile(regex).match for regex in _iso8601_re]
+del regex
+def _parse_date_iso8601(dateString):
+ """Parse a variety of ISO-8601-compatible formats like 20040105"""
+ m = None
+ for _iso8601_match in _iso8601_matches:
+ m = _iso8601_match(dateString)
+ if m: break
+ if not m: return
+ if m.span() == (0, 0): return
+ params = m.groupdict()
+ ordinal = params.get("ordinal", 0)
+ if ordinal:
+ ordinal = int(ordinal)
+ else:
+ ordinal = 0
+ year = params.get("year", "--")
+ if not year or year == "--":
+ year = time.gmtime()[0]
+ elif len(year) == 2:
+ # ISO 8601 assumes current century, i.e. 93 -> 2093, NOT 1993
+ year = 100 * int(time.gmtime()[0] / 100) + int(year)
+ else:
+ year = int(year)
+ month = params.get("month", "-")
+ if not month or month == "-":
+ # ordinals are NOT normalized by mktime, we simulate them
+ # by setting month=1, day=ordinal
+ if ordinal:
+ month = 1
+ else:
+ month = time.gmtime()[1]
+ month = int(month)
+ day = params.get("day", 0)
+ if not day:
+ # see above
+ if ordinal:
+ day = ordinal
+ elif params.get("century", 0) or \
+ params.get("year", 0) or params.get("month", 0):
+ day = 1
+ else:
+ day = time.gmtime()[2]
+ else:
+ day = int(day)
+ # special case of the century - is the first year of the 21st century
+ # 2000 or 2001 ? The debate goes on...
+ if "century" in params.keys():
+ year = (int(params["century"]) - 1) * 100 + 1
+ # in ISO 8601 most fields are optional
+ for field in ["hour", "minute", "second", "tzhour", "tzmin"]:
+ if not params.get(field, None):
+ params[field] = 0
+ hour = int(params.get("hour", 0))
+ minute = int(params.get("minute", 0))
+ second = int(params.get("second", 0))
+ # weekday is normalized by mktime(), we can ignore it
+ weekday = 0
+ # daylight savings is complex, but not needed for feedparser's purposes
+ # as time zones, if specified, include mention of whether it is active
+ # (e.g. PST vs. PDT, CET). Using -1 is implementation-dependent and
+ # and most implementations have DST bugs
+ daylight_savings_flag = 0
+ tm = [year, month, day, hour, minute, second, weekday,
+ ordinal, daylight_savings_flag]
+ # ISO 8601 time zone adjustments
+ tz = params.get("tz")
+ if tz and tz != "Z":
+ if tz[0] == "-":
+ tm[3] += int(params.get("tzhour", 0))
+ tm[4] += int(params.get("tzmin", 0))
+ elif tz[0] == "+":
+ tm[3] -= int(params.get("tzhour", 0))
+ tm[4] -= int(params.get("tzmin", 0))
+ else:
+ return None
+ # Python's time.mktime() is a wrapper around the ANSI C mktime(3c)
+ # which is guaranteed to normalize d/m/y/h/m/s.
+ # Many implementations have bugs, but we'll pretend they don't.
+ return time.localtime(time.mktime(tm))
+registerDateHandler(_parse_date_iso8601)
+
+# 8-bit date handling routines written by ytrewq1.
+_korean_year = u'\ub144' # b3e2 in euc-kr
+_korean_month = u'\uc6d4' # bff9 in euc-kr
+_korean_day = u'\uc77c' # c0cf in euc-kr
+_korean_am = u'\uc624\uc804' # bfc0 c0fc in euc-kr
+_korean_pm = u'\uc624\ud6c4' # bfc0 c8c4 in euc-kr
+
+_korean_onblog_date_re = \
+ re.compile('(\d{4})%s\s+(\d{2})%s\s+(\d{2})%s\s+(\d{2}):(\d{2}):(\d{2})' % \
+ (_korean_year, _korean_month, _korean_day))
+_korean_nate_date_re = \
+ re.compile(u'(\d{4})-(\d{2})-(\d{2})\s+(%s|%s)\s+(\d{,2}):(\d{,2}):(\d{,2})' % \
+ (_korean_am, _korean_pm))
+def _parse_date_onblog(dateString):
+ """Parse a string according to the OnBlog 8-bit date format"""
+ m = _korean_onblog_date_re.match(dateString)
+ if not m: return
+ w3dtfdate = "%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s:%(second)s%(zonediff)s" % \
+ {'year': m.group(1), 'month': m.group(2), 'day': m.group(3),\
+ 'hour': m.group(4), 'minute': m.group(5), 'second': m.group(6),\
+ 'zonediff': '+09:00'}
+ if _debug: sys.stderr.write("OnBlog date parsed as: %s\n" % w3dtfdate)
+ return _parse_date_w3dtf(w3dtfdate)
+registerDateHandler(_parse_date_onblog)
+
+def _parse_date_nate(dateString):
+ """Parse a string according to the Nate 8-bit date format"""
+ m = _korean_nate_date_re.match(dateString)
+ if not m: return
+ hour = int(m.group(5))
+ ampm = m.group(4)
+ if (ampm == _korean_pm):
+ hour += 12
+ hour = str(hour)
+ if len(hour) == 1:
+ hour = '0' + hour
+ w3dtfdate = "%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s:%(second)s%(zonediff)s" % \
+ {'year': m.group(1), 'month': m.group(2), 'day': m.group(3),\
+ 'hour': hour, 'minute': m.group(6), 'second': m.group(7),\
+ 'zonediff': '+09:00'}
+ if _debug: sys.stderr.write("Nate date parsed as: %s\n" % w3dtfdate)
+ return _parse_date_w3dtf(w3dtfdate)
+registerDateHandler(_parse_date_nate)
+
+_mssql_date_re = \
+ re.compile('(\d{4})-(\d{2})-(\d{2})\s+(\d{2}):(\d{2}):(\d{2})\.\d+')
+def _parse_date_mssql(dateString):
+ """Parse a string according to the MS SQL date format"""
+ m = _mssql_date_re.match(dateString)
+ if not m: return
+ w3dtfdate = "%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s:%(second)s%(zonediff)s" % \
+ {'year': m.group(1), 'month': m.group(2), 'day': m.group(3),\
+ 'hour': m.group(4), 'minute': m.group(5), 'second': m.group(6),\
+ 'zonediff': '+09:00'}
+ if _debug: sys.stderr.write("MS SQL date parsed as: %s\n" % w3dtfdate)
+ return _parse_date_w3dtf(w3dtfdate)
+registerDateHandler(_parse_date_mssql)
+
+# Unicode strings for Greek date strings
+_greek_months = \
+ { \
+ u'\u0399\u03b1\u03bd': u'Jan', # c9e1ed in iso-8859-7
+ u'\u03a6\u03b5\u03b2': u'Feb', # d6e5e2 in iso-8859-7
+ u'\u039c\u03ac\u03ce': u'Mar', # ccdcfe in iso-8859-7
+ u'\u039c\u03b1\u03ce': u'Mar', # cce1fe in iso-8859-7
+ u'\u0391\u03c0\u03c1': u'Apr', # c1f0f1 in iso-8859-7
+ u'\u039c\u03ac\u03b9': u'May', # ccdce9 in iso-8859-7
+ u'\u039c\u03b1\u03ca': u'May', # cce1fa in iso-8859-7
+ u'\u039c\u03b1\u03b9': u'May', # cce1e9 in iso-8859-7
+ u'\u0399\u03bf\u03cd\u03bd': u'Jun', # c9effded in iso-8859-7
+ u'\u0399\u03bf\u03bd': u'Jun', # c9efed in iso-8859-7
+ u'\u0399\u03bf\u03cd\u03bb': u'Jul', # c9effdeb in iso-8859-7
+ u'\u0399\u03bf\u03bb': u'Jul', # c9f9eb in iso-8859-7
+ u'\u0391\u03cd\u03b3': u'Aug', # c1fde3 in iso-8859-7
+ u'\u0391\u03c5\u03b3': u'Aug', # c1f5e3 in iso-8859-7
+ u'\u03a3\u03b5\u03c0': u'Sep', # d3e5f0 in iso-8859-7
+ u'\u039f\u03ba\u03c4': u'Oct', # cfeaf4 in iso-8859-7
+ u'\u039d\u03bf\u03ad': u'Nov', # cdefdd in iso-8859-7
+ u'\u039d\u03bf\u03b5': u'Nov', # cdefe5 in iso-8859-7
+ u'\u0394\u03b5\u03ba': u'Dec', # c4e5ea in iso-8859-7
+ }
+
+_greek_wdays = \
+ { \
+ u'\u039a\u03c5\u03c1': u'Sun', # caf5f1 in iso-8859-7
+ u'\u0394\u03b5\u03c5': u'Mon', # c4e5f5 in iso-8859-7
+ u'\u03a4\u03c1\u03b9': u'Tue', # d4f1e9 in iso-8859-7
+ u'\u03a4\u03b5\u03c4': u'Wed', # d4e5f4 in iso-8859-7
+ u'\u03a0\u03b5\u03bc': u'Thu', # d0e5ec in iso-8859-7
+ u'\u03a0\u03b1\u03c1': u'Fri', # d0e1f1 in iso-8859-7
+ u'\u03a3\u03b1\u03b2': u'Sat', # d3e1e2 in iso-8859-7
+ }
+
+_greek_date_format_re = \
+ re.compile(u'([^,]+),\s+(\d{2})\s+([^\s]+)\s+(\d{4})\s+(\d{2}):(\d{2}):(\d{2})\s+([^\s]+)')
+
+def _parse_date_greek(dateString):
+ """Parse a string according to a Greek 8-bit date format."""
+ m = _greek_date_format_re.match(dateString)
+ if not m: return
+ try:
+ wday = _greek_wdays[m.group(1)]
+ month = _greek_months[m.group(3)]
+ except:
+ return
+ rfc822date = "%(wday)s, %(day)s %(month)s %(year)s %(hour)s:%(minute)s:%(second)s %(zonediff)s" % \
+ {'wday': wday, 'day': m.group(2), 'month': month, 'year': m.group(4),\
+ 'hour': m.group(5), 'minute': m.group(6), 'second': m.group(7),\
+ 'zonediff': m.group(8)}
+ if _debug: sys.stderr.write("Greek date parsed as: %s\n" % rfc822date)
+ return _parse_date_rfc822(rfc822date)
+registerDateHandler(_parse_date_greek)
+
+# Unicode strings for Hungarian date strings
+_hungarian_months = \
+ { \
+ u'janu\u00e1r': u'01', # e1 in iso-8859-2
+ u'febru\u00e1ri': u'02', # e1 in iso-8859-2
+ u'm\u00e1rcius': u'03', # e1 in iso-8859-2
+ u'\u00e1prilis': u'04', # e1 in iso-8859-2
+ u'm\u00e1ujus': u'05', # e1 in iso-8859-2
+ u'j\u00fanius': u'06', # fa in iso-8859-2
+ u'j\u00falius': u'07', # fa in iso-8859-2
+ u'augusztus': u'08',
+ u'szeptember': u'09',
+ u'okt\u00f3ber': u'10', # f3 in iso-8859-2
+ u'november': u'11',
+ u'december': u'12',
+ }
+
+_hungarian_date_format_re = \
+ re.compile(u'(\d{4})-([^-]+)-(\d{,2})T(\d{,2}):(\d{2})((\+|-)(\d{,2}:\d{2}))')
+
+def _parse_date_hungarian(dateString):
+ """Parse a string according to a Hungarian 8-bit date format."""
+ m = _hungarian_date_format_re.match(dateString)
+ if not m: return
+ try:
+ month = _hungarian_months[m.group(2)]
+ day = m.group(3)
+ if len(day) == 1:
+ day = '0' + day
+ hour = m.group(4)
+ if len(hour) == 1:
+ hour = '0' + hour
+ except:
+ return
+ w3dtfdate = "%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s%(zonediff)s" % \
+ {'year': m.group(1), 'month': month, 'day': day,\
+ 'hour': hour, 'minute': m.group(5),\
+ 'zonediff': m.group(6)}
+ if _debug: sys.stderr.write("Hungarian date parsed as: %s\n" % w3dtfdate)
+ return _parse_date_w3dtf(w3dtfdate)
+registerDateHandler(_parse_date_hungarian)
+
# W3DTF-style date parsing adapted from PyXML xml.utils.iso8601, written by
# Drake and licensed under the Python license. Removed all range checking
# for month, day, hour, minute, and second, since mktime will normalize
# these later
-def _w3dtf_parse(s):
+def _parse_date_w3dtf(dateString):
def __extract_date(m):
year = int(m.group("year"))
if year < 100:
+ __tzd_re)
__datetime_re = "%s(?:T%s)?" % (__date_re, __time_re)
__datetime_rx = re.compile(__datetime_re)
- m = __datetime_rx.match(s)
- if m is None or m.group() != s:
- return None
+ 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.mktime(gmt) + __extract_tzd(m) - time.timezone
-
-# Additional ISO-8601 date parsing routines written by Fazal Majid
-# The ISO 8601 standard is very convoluted and irregular - a full ISO 8601
-# parser is beyond the scope of feedparser and would be a worthwhile addition
-# to the Python library
-# A single regular expression cannot parse ISO 8601 date formats into groups
-# as the standard is highly irregular (for instance is 030104 2003-01-04 or
-# 0301-04-01), so we use templates instead
-# Please note the order in templates is significant because we need a
-# greedy match
-_iso8601_tmpl = ['YYYY-?MM-?DD', 'YYYY-MM', 'YYYY-?OOO',
- 'YY-?MM-?DD', 'YY-?OOO', 'YYYY',
- '-YY-?MM', '-OOO', '-YY',
- '--MM-?DD', '--MM',
- '---DD',
- 'CC', '']
-_iso8601_re = [
- tmpl.replace(
- 'YYYY', r'(?P<year>\d{4})').replace(
- 'YY', r'(?P<year>\d\d)').replace(
- 'MM', r'(?P<month>[01]\d)').replace(
- 'DD', r'(?P<day>[0123]\d)').replace(
- 'OOO', r'(?P<ordinal>[0123]\d\d)').replace(
- 'CC', r'(?P<century>\d\d$)')
- + r'(T?(?P<hour>\d{2}):(?P<minute>\d{2})'
- + r'(:(?P<second>\d{2}))?'
- + r'(?P<tz>[+-](?P<tzhour>\d{2})(:(?P<tzmin>\d{2}))?|Z)?)?'
- for tmpl in _iso8601_tmpl]
-del tmpl
-
-_iso8601_matches = [re.compile(regex).match for regex in _iso8601_re]
-del regex
-
+ 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(date):
- """Parses a variety of date formats into a tuple of 9 integers"""
- date = str(date)
- try:
- # try the standard rfc822 library, which handles
- # RFC822, RFC1123, RFC2822, and asctime
- tm = rfc822.parsedate_tz(date)
- if tm:
- return time.gmtime(rfc822.mktime_tz(tm))
- # not a RFC2822 date, try W3DTF profile of ISO-8601
+def _parse_date(dateString):
+ """Parses a variety of date formats into a 9-tuple in GMT"""
+ for handler in _date_handlers:
try:
- tm = _w3dtf_parse(date)
- except ValueError:
- tm = None
- if tm:
- return time.gmtime(tm)
- # try various non-W3DTF ISO-8601-compatible formats like 20040105
- m = None
- for _iso8601_match in _iso8601_matches:
- m = _iso8601_match(date)
- if m: break
- if not m: return
- # catch truly malformed strings
- if m.span() == (0, 0): return
- params = m.groupdict()
- ordinal = params.get("ordinal", 0)
- if ordinal:
- ordinal = int(ordinal)
- else:
- ordinal = 0
- year = params.get("year", "--")
- if not year or year == "--":
- year = time.gmtime()[0]
- elif len(year) == 2:
- # ISO 8601 assumes current century, i.e. 93 -> 2093, NOT 1993
- year = 100 * int(time.gmtime()[0] / 100) + int(year)
- else:
- year = int(year)
- month = params.get("month", "-")
- if not month or month == "-":
- # ordinals are NOT normalized by mktime, we simulate them
- # by setting month=1, day=ordinal
- if ordinal:
- month = 1
- else:
- month = time.gmtime()[1]
- month = int(month)
- day = params.get("day", 0)
- if not day:
- # see above
- if ordinal:
- day = ordinal
- elif params.get("century", 0) or \
- params.get("year", 0) or params.get("month", 0):
- day = 1
- else:
- day = time.gmtime()[2]
- else:
- day = int(day)
- # special case of the century - is the first year of the 21st century
- # 2000 or 2001 ? The debate goes on...
- if "century" in params.keys():
- year = (int(params["century"]) - 1) * 100 + 1
- # in ISO 8601 most fields are optional
- for field in ["hour", "minute", "second", "tzhour", "tzmin"]:
- if not params.get(field, None):
- params[field] = 0
- hour = int(params.get("hour", 0))
- minute = int(params.get("minute", 0))
- second = int(params.get("second", 0))
- # weekday is normalized by mktime(), we can ignore it
- weekday = 0
- # daylight savings is complex, but not needed for feedparser's purposes
- # as time zones, if specified, include mention of whether it is active
- # (e.g. PST vs. PDT, CET). Using -1 is implementation-dependent and
- # and most implementations have DST bugs
- daylight_savings_flag = 0
- tm = [year, month, day, hour, minute, second, weekday,
- ordinal, daylight_savings_flag]
- # ISO 8601 time zone adjustments
- tz = params.get("tz")
- if tz and tz != "Z":
- if tz[0] == "-":
- tm[3] += int(params.get("tzhour", 0))
- tm[4] += int(params.get("tzmin", 0))
- elif tz[0] == "+":
- tm[3] -= int(params.get("tzhour", 0))
- tm[4] -= int(params.get("tzmin", 0))
- else:
- return None
- # Python's time.mktime() is a wrapper around the ANSI C mktime(3c)
- # which is guaranteed to normalize d/m/y/h/m/s
- # many implementations have bugs, but we'll pretend they don't
- return time.localtime(time.mktime(tm))
- except:
- return None
+ 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,
+ 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
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. If
- Content-Type is unspecified (input was local file or non-HTTP source)
+ 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
- "utf-8" as per the XML specification.
+ "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):
If no content type is specified, returns ('', '')
Both return parameters are guaranteed to be lowercase strings
"""
- if not content_type:
- return '', ''
- content_type = content_type.strip()
- paramstr = content_type.split(';')[1:]
- if not paramstr:
- return content_type, ''
- content_type = content_type.split(';', 1)[0].strip().lower()
- if not paramstr[0]:
- # declaration like "text/xml;" (note ending semicolon)
- # dunno if this is malformed but it sure was hard to track down
- return content_type, ''
- import string
- params = dict([map(string.lower, map(string.strip, p.strip().split('=', 1))) for p in paramstr])
- charset = params.get('charset')
- if not charset:
- return content_type, ''
- if charset[0] in ('"', "'"):
- charset = charset[1:]
- if charset and charset[-1] in ('"', "'"):
- charset = charset[:-1]
- charset = charset.strip()
- return content_type, charset
-
- true_encoding = None
+ 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"))
- xml_encoding_match = re.compile('<\?.*encoding=[\'"](.*?)[\'"].*\?>').match(xml_data)
- xml_encoding = xml_encoding_match and xml_encoding_match.groups()[0].lower() or ''
- if (http_content_type == 'application/xml') or \
- (http_content_type == 'application/xml-dtd') or \
- (http_content_type == 'application/xml-external-parsed-entity') or \
- (http_content_type.startswith('application/') and http_content_type.endswith('+xml')):
- if http_encoding:
- true_encoding = http_encoding
- elif xml_encoding:
- true_encoding = xml_encoding
- else:
- true_encoding = 'utf-8'
- elif (http_content_type == 'text/xml') or \
- (http_content_type == 'text/xml-external-parsed-entity') or \
- (http_content_type.startswith('text/') and http_content_type.endswith('+xml')):
- if http_encoding:
- true_encoding = http_encoding
+ # 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:
- true_encoding = 'us-ascii'
+ # 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
+ return true_encoding, http_encoding, xml_encoding, sniffed_xml_encoding, acceptable_content_type
-def _changeEncodingDeclaration(data, encoding):
+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 _changeEncodingDeclaration\n')
- if _debug: sys.stderr.write('proposed encoding: %s\n' % encoding)
- #import cjkcodecs.aliases
- #import japanese
- data = unicode(data, encoding)
- declmatch = re.compile(u'^<\?xml[^>]*?>')
- newdecl = unicode("""<?xml version='1.0' encoding='%s'?>""" % encoding, encoding)
- if declmatch.search(data):
- data = declmatch.sub(newdecl, data)
+ if _debug: sys.stderr.write('entering _toUTF8, trying encoding %s\n' % encoding)
+ # strip Byte Order Mark (if present)
+ if (len(data) >= 4) and (data[:2] == '\xfe\xff') and (data[2:4] != '\x00\x00'):
+ if _debug:
+ sys.stderr.write('stripping BOM\n')
+ if encoding != 'utf-16be':
+ sys.stderr.write('trying utf-16be instead\n')
+ encoding = 'utf-16be'
+ data = data[2:]
+ elif (len(data) >= 4) and (data[:2] == '\xff\xfe') and (data[2:4] != '\x00\x00'):
+ if _debug:
+ sys.stderr.write('stripping BOM\n')
+ if encoding != 'utf-16le':
+ sys.stderr.write('trying utf-16le instead\n')
+ encoding = 'utf-16le'
+ data = data[2:]
+ elif data[:3] == '\xef\xbb\xbf':
+ if _debug:
+ sys.stderr.write('stripping BOM\n')
+ if encoding != 'utf-8':
+ sys.stderr.write('trying utf-8 instead\n')
+ encoding = 'utf-8'
+ data = data[3:]
+ elif data[:4] == '\x00\x00\xfe\xff':
+ if _debug:
+ sys.stderr.write('stripping BOM\n')
+ if encoding != 'utf-32be':
+ sys.stderr.write('trying utf-32be instead\n')
+ encoding = 'utf-32be'
+ data = data[4:]
+ elif data[:4] == '\xff\xfe\x00\x00':
+ if _debug:
+ sys.stderr.write('stripping BOM\n')
+ if encoding != 'utf-32le':
+ sys.stderr.write('trying utf-32le instead\n')
+ encoding = 'utf-32le'
+ data = data[4:]
+ newdata = unicode(data, encoding)
+ if _debug: sys.stderr.write('successfully converted %s data to unicode\n' % encoding)
+ declmatch = re.compile('^<\?xml[^>]*?>')
+ newdecl = """<?xml version='1.0' encoding='utf-8'?>"""
+ if declmatch.search(newdata):
+ newdata = declmatch.sub(newdecl, newdata)
else:
- data = newdecl + u'\n' + data
- return data.encode(encoding)
+ newdata = newdecl + u'\n' + newdata
+ return newdata.encode("utf-8")
def _stripDoctype(data):
"""Strips DOCTYPE from XML document, returns (rss_version, stripped_data)
rss_version may be "rss091n" or None
stripped_data is the same XML document, minus the DOCTYPE
"""
+ entity_pattern = re.compile(r'<!ENTITY([^>]*?)>', re.MULTILINE)
+ data = entity_pattern.sub('', data)
doctype_pattern = re.compile(r'<!DOCTYPE([^>]*?)>', re.MULTILINE)
doctype_results = doctype_pattern.findall(data)
doctype = doctype_results and doctype_results[0] or ''
data = doctype_pattern.sub('', data)
return version, data
-def parse(url_file_stream_or_string, etag=None, modified=None, agent=None, referrer=None):
+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()
- f = _open_resource(url_file_stream_or_string, etag=etag, modified=modified, agent=agent, referrer=referrer)
- data = f.read()
- if hasattr(f, "headers"):
+ result['feed'] = FeedParserDict()
+ result['entries'] = []
+ if _XML_AVAILABLE:
+ result['bozo'] = 0
+ if type(handlers) == types.InstanceType:
+ handlers = [handlers]
+ try:
+ f = _open_resource(url_file_stream_or_string, etag, modified, agent, referrer, handlers)
+ data = f.read()
+ except Exception, e:
+ result['bozo'] = 1
+ result['bozo_exception'] = e
+ data = ''
+ f = None
+
+ # if feed is gzip-compressed, decompress it
+ if f and data and hasattr(f, "headers"):
if gzip and f.headers.get('content-encoding', '') == 'gzip':
try:
data = gzip.GzipFile(fileobj=_StringIO(data)).read()
- except:
- # some feeds claim to be gzipped but they're not, so we get garbage
+ except Exception, e:
+ # Some feeds claim to be gzipped but they're not, so
+ # we get garbage. Ideally, we should re-request the
+ # feed without the "Accept-encoding: gzip" header,
+ # but we don't.
+ result['bozo'] = 1
+ result['bozo_exception'] = e
data = ''
+ elif zlib and f.headers.get('content-encoding', '') == 'deflate':
+ try:
+ data = zlib.decompress(data, -zlib.MAX_WBITS)
+ except Exception, e:
+ result['bozo'] = 1
+ result['bozo_exception'] = e
+ data = ''
+
+ # save HTTP headers
if hasattr(f, "info"):
info = f.info()
result["etag"] = info.getheader("ETag")
result["modified"] = _parse_date(last_modified)
if hasattr(f, "url"):
result["url"] = f.url
- result["status"] = 200 # default, may be overridden later
+ result["status"] = 200
if hasattr(f, "status"):
result["status"] = f.status
if hasattr(f, "headers"):
result["headers"] = f.headers.dict
- f.close()
+ if hasattr(f, "close"):
+ f.close()
+
+ # there are four encodings to keep track of:
+ # - http_encoding is the encoding declared in the Content-Type HTTP header
+ # - xml_encoding is the encoding declared in the <?xml declaration
+ # - sniffed_encoding is the encoding sniffed from the first 4 bytes of the XML data
+ # - result['encoding'] is the actual encoding, as per RFC 3023 and a variety of other conflicting specifications
+ http_headers = result.get("headers", {})
+ result['encoding'], http_encoding, xml_encoding, sniffed_xml_encoding, acceptable_content_type = \
+ _getCharacterEncoding(http_headers, data)
+ if http_headers and (not acceptable_content_type):
+ if http_headers.has_key('content-type'):
+ bozo_message = '%s is not an XML media type' % http_headers['content-type']
+ else:
+ bozo_message = 'no Content-type specified'
+ result['bozo'] = 1
+ result['bozo_exception'] = NonXMLContentType(bozo_message)
+
+ result['version'], data = _stripDoctype(data)
+
+ baseuri = http_headers.get('content-location', result.get('url'))
+ baselang = http_headers.get('content-language', None)
+
+ # if server sent 304, we're done
if result.get("status", 0) == 304:
- result['feed'] = FeedParserDict()
- result['entries'] = []
- result['debug_message'] = "The feed has not changed since you last checked, so the server sent no data. This is a feature, not a bug!"
+ result['version'] = ''
+ result['debug_message'] = "The feed has not changed since you last checked, " + \
+ "so the server sent no data. This is a feature, not a bug!"
return result
- result['encoding'], http_encoding, xml_encoding = _getCharacterEncoding(result.get("headers", {}), data)
- result['version'], data = _stripDoctype(data)
- baseuri = result.get('headers', {}).get('content-location', result.get('url'))
- # try true XML parser first
+
+ # if there was a problem downloading, we're done
+ if not data:
+ return result
+
+ # determine character encoding
+ use_strict_parser = 0
+ known_encoding = 0
+ tried_encodings = []
+ for proposed_encoding in (result['encoding'], xml_encoding, sniffed_xml_encoding, 'utf-8', 'windows-1252'):
+ if proposed_encoding in tried_encodings: continue
+ if not proposed_encoding: continue
+ try:
+ data = _toUTF8(data, proposed_encoding)
+ known_encoding = 1
+ use_strict_parser = 1
+ break
+ except:
+ pass
+ tried_encodings.append(proposed_encoding)
+ if not known_encoding:
+ result['bozo'] = 1
+ result['bozo_exception'] = CharacterEncodingUnknown( \
+ "document encoding unknown, I tried " + \
+ "%s, %s, utf-8, and windows-1252 but nothing worked" % \
+ (result['encoding'], xml_encoding))
+ result['encoding'] = ''
+ elif proposed_encoding != result['encoding']:
+ result['bozo'] = 1
+ result['bozo_exception'] = CharacterEncodingOverride( \
+ "documented declared as %s, but parsed as %s" % \
+ (result['encoding'], proposed_encoding))
+ result['encoding'] = proposed_encoding
+
if not _XML_AVAILABLE:
- if _debug: sys.stderr.write('no xml libraries available\n')
- use_strict_parser = _XML_AVAILABLE
+ use_strict_parser = 0
if use_strict_parser:
- if _debug: sys.stderr.write('using xml library\n')
- result['bozo'] = 0
- feedparser = _StrictFeedParser(baseuri, result['encoding'])
- if _debug and _debug_never_use_libxml2:
- sys.stderr.write('not using libxml2 (even if available)\n')
- additional_parsers = []
- else:
- additional_parsers = ["drv_libxml2"]
- saxparser = xml.sax.make_parser(additional_parsers)
+ # initialize the SAX parser
+ feedparser = _StrictFeedParser(baseuri, baselang, 'utf-8')
+ saxparser = xml.sax.make_parser(PREFERRED_XML_PARSERS)
saxparser.setFeature(xml.sax.handler.feature_namespaces, 1)
saxparser.setContentHandler(feedparser)
saxparser.setErrorHandler(feedparser)
- try:
- saxparser.setDTDHandler(feedparser)
- except xml.sax.SAXNotSupportedException:
- # libxml2 driver does not support DTDHandler
- if _debug: sys.stderr.write('using an xml library that does not support DTDHandler (not a big deal)\n')
- try:
- saxparser.setEntityResolver(feedparser)
- except xml.sax.SAXNotSupportedException:
- # libxml2 driver does not support EntityResolver
- if _debug: sys.stderr.write('using an xml library that does not support EntityResolver (not a big deal)\n')
- encoding_set = (result['encoding'] == xml_encoding)
- if not encoding_set:
- bozo_exception = None
- proposed_encodings = [result['encoding'], xml_encoding, 'utf-8', 'iso-8859-1', 'windows-1252']
- tried_encodings = []
- for proposed_encoding in proposed_encodings:
- if proposed_encodings in tried_encodings: continue
- tried_encodings.append(proposed_encoding)
- try:
- data = _changeEncodingDeclaration(data, proposed_encoding)
- except Exception, bozo_exception:
- if _debug: sys.stderr.write('character encoding is wrong\n')
- else:
- if proposed_encoding != result['encoding']:
- try:
- raise CharacterEncodingOverride, "document declared as %s, but parsed as %s" % (result['encoding'], proposed_encoding)
- except CharacterEncodingOverride, bozo_exception:
- result['bozo'] = 1
- result['bozo_exception'] = bozo_exception
- result['encoding'] = proposed_encoding
- encoding_set = 1
- break
- if not encoding_set:
- result['bozo'] = 1
- result['bozo_exception'] = bozo_exception
- use_strict_parser = 0
- if use_strict_parser:
source = xml.sax.xmlreader.InputSource()
source.setByteStream(_StringIO(data))
if hasattr(saxparser, '_ns_stack'):
try:
saxparser.parse(source)
except Exception, e:
- if _debug: sys.stderr.write('xml parsing failed\n')
- feedparser.bozo = 1
- feedparser.bozo_exception = feedparser.exc or e
- if feedparser.bozo:
- # feed is not well-formed XML, fall back on regex-based parser
+ if _debug:
+ import traceback
+ traceback.print_stack()
+ traceback.print_exc()
+ sys.stderr.write('xml parsing failed\n')
result['bozo'] = 1
- result['bozo_exception'] = feedparser.bozo_exception
+ result['bozo_exception'] = feedparser.exc or e
use_strict_parser = 0
if not use_strict_parser:
- if _debug: sys.stderr.write('using regexes, now you have two problems\n')
- feedparser = _LooseFeedParser(baseuri, result['encoding'])
+ feedparser = _LooseFeedParser(baseuri, baselang, known_encoding and 'utf-8' or '')
feedparser.feed(data)
result['feed'] = feedparser.feeddata
result['entries'] = feedparser.entries
sys.exit(0)
else:
urls = sys.argv[1:]
+ zopeCompatibilityHack()
from pprint import pprint
for url in urls:
print url
pprint(result)
print
-#TODO
-#- image
-#
#REVISION HISTORY
#1.0 - 9/27/2002 - MAP - fixed namespace processing on prefixed RSS 2.0 elements,
# added Simon Fell's test suite
# 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
git.ucc.asn.au / planet-ucc.git / commitdiff
UCC git Repository :: git.ucc.asn.au