mirror of
https://github.com/Mikaela/Limnoria.git
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253 lines
9.1 KiB
Python
253 lines
9.1 KiB
Python
###
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# Copyright (c) 2005, Jeremiah Fincher
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# Copyright (c) 2009, James McCoy
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions, and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions, and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the author of this software nor the name of
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# contributors to this software may be used to endorse or promote products
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# derived from this software without specific prior written consent.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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###
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import re
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import sys
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import HTMLParser
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import htmlentitydefs
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import supybot.conf as conf
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import supybot.utils as utils
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from supybot.commands import *
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import supybot.plugins as plugins
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import supybot.ircutils as ircutils
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import supybot.callbacks as callbacks
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from supybot.i18n import PluginInternationalization, internationalizeDocstring
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_ = PluginInternationalization('Web')
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class Title(HTMLParser.HTMLParser):
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entitydefs = htmlentitydefs.entitydefs.copy()
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entitydefs['nbsp'] = ' '
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entitydefs['apos'] = '\''
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def __init__(self):
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self.inTitle = False
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self.title = ''
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HTMLParser.HTMLParser.__init__(self)
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def handle_starttag(self, tag, attrs):
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if tag == 'title':
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self.inTitle = True
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def handle_endtag(self, tag):
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if tag == 'title':
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self.inTitle = False
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def handle_data(self, data):
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if self.inTitle:
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self.title += data
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def handle_entityref(self, name):
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if self.inTitle:
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if name in self.entitydefs:
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self.title += self.entitydefs[name]
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class Web(callbacks.PluginRegexp):
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"""Add the help for "@help Web" here."""
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threaded = True
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regexps = ['titleSnarfer']
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def callCommand(self, command, irc, msg, *args, **kwargs):
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try:
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super(Web, self).callCommand(command, irc, msg, *args, **kwargs)
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except utils.web.Error, e:
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irc.reply(str(e))
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def titleSnarfer(self, irc, msg, match):
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channel = msg.args[0]
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if not irc.isChannel(channel):
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return
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if callbacks.addressed(irc.nick, msg):
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return
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if self.registryValue('titleSnarfer', channel):
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url = match.group(0)
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r = self.registryValue('nonSnarfingRegexp', channel)
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if r and r.search(url):
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self.log.debug('Not titleSnarfing %q.', url)
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return
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try:
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size = conf.supybot.protocols.http.peekSize()
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text = utils.web.getUrl(url, size=size)
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if sys.version_info[0] >= 3:
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text = text.decode('utf8', 'replace')
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except utils.web.Error, e:
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self.log.info('Couldn\'t snarf title of %u: %s.', url, e)
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return
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parser = Title()
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try:
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parser.feed(text)
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except HTMLParser.HTMLParseError:
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self.log.debug('Encountered a problem parsing %u. Title may '
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'already be set, though', url)
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if parser.title:
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domain = utils.web.getDomain(url)
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title = utils.web.htmlToText(parser.title.strip())
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if sys.version_info[0] < 3:
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try:
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title = title.encode('utf8', 'replace')
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except UnicodeDecodeError:
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pass
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s = format(_('Title: %s (at %s)'), title, domain)
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irc.reply(s, prefixNick=False)
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titleSnarfer = urlSnarfer(titleSnarfer)
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titleSnarfer.__doc__ = utils.web._httpUrlRe
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@internationalizeDocstring
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def headers(self, irc, msg, args, url):
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"""<url>
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Returns the HTTP headers of <url>. Only HTTP urls are valid, of
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course.
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"""
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fd = utils.web.getUrlFd(url)
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try:
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s = ', '.join([format(_('%s: %s'), k, v)
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for (k, v) in fd.headers.items()])
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irc.reply(s)
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finally:
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fd.close()
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headers = wrap(headers, ['httpUrl'])
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_doctypeRe = re.compile(r'(<!DOCTYPE[^>]+>)', re.M)
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@internationalizeDocstring
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def doctype(self, irc, msg, args, url):
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"""<url>
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Returns the DOCTYPE string of <url>. Only HTTP urls are valid, of
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course.
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"""
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size = conf.supybot.protocols.http.peekSize()
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s = utils.web.getUrl(url, size=size) \
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.decode('utf8')
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m = self._doctypeRe.search(s)
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if m:
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s = utils.str.normalizeWhitespace(m.group(0))
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irc.reply(s)
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else:
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irc.reply(_('That URL has no specified doctype.'))
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doctype = wrap(doctype, ['httpUrl'])
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@internationalizeDocstring
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def size(self, irc, msg, args, url):
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"""<url>
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Returns the Content-Length header of <url>. Only HTTP urls are valid,
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of course.
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"""
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fd = utils.web.getUrlFd(url)
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try:
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try:
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size = fd.headers['Content-Length']
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irc.reply(format(_('%u is %S long.'), url, int(size)))
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except KeyError:
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size = conf.supybot.protocols.http.peekSize()
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s = fd.read(size)
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if len(s) != size:
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irc.reply(format(_('%u is %S long.'), url, len(s)))
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else:
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irc.reply(format(_('The server didn\'t tell me how long %u '
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'is but it\'s longer than %S.'),
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url, size))
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finally:
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fd.close()
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size = wrap(size, ['httpUrl'])
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@internationalizeDocstring
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def title(self, irc, msg, args, optlist, url):
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"""[--no-filter] <url>
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Returns the HTML <title>...</title> of a URL.
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If --no-filter is given, the bot won't strip special chars (action,
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DCC, ...).
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"""
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size = conf.supybot.protocols.http.peekSize()
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text = utils.web.getUrl(url, size=size)
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try:
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text = text.decode('utf8', 'replace')
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except:
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pass
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parser = Title()
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try:
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parser.feed(text)
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except HTMLParser.HTMLParseError:
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self.log.debug('Encountered a problem parsing %u. Title may '
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'already be set, though', url)
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if parser.title:
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title = utils.web.htmlToText(parser.title.strip())
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if not [y for x,y in optlist if x == 'no-filter']:
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for i in range(1, 4):
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title = title.replace(chr(i), '')
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irc.reply(title)
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elif len(text) < size:
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irc.reply(_('That URL appears to have no HTML title.'))
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else:
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irc.reply(format(_('That URL appears to have no HTML title '
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'within the first %S.'), size))
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title = wrap(title, [getopts({'no-filter': ''}), 'httpUrl'])
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@internationalizeDocstring
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def urlquote(self, irc, msg, args, text):
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"""<text>
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Returns the URL quoted form of the text.
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"""
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irc.reply(utils.web.urlquote(text))
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urlquote = wrap(urlquote, ['text'])
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@internationalizeDocstring
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def urlunquote(self, irc, msg, args, text):
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"""<text>
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Returns the text un-URL quoted.
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"""
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s = utils.web.urlunquote(text)
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irc.reply(s)
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urlunquote = wrap(urlunquote, ['text'])
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@internationalizeDocstring
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def fetch(self, irc, msg, args, url):
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"""<url>
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Returns the contents of <url>, or as much as is configured in
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supybot.plugins.Web.fetch.maximum. If that configuration variable is
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set to 0, this command will be effectively disabled.
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"""
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max = self.registryValue('fetch.maximum')
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if not max:
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irc.error(_('This command is disabled '
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'(supybot.plugins.Web.fetch.maximum is set to 0).'),
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Raise=True)
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fd = utils.web.getUrl(url, size=max) \
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.decode('utf8')
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irc.reply(fd)
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fetch = wrap(fetch, ['url'])
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Class = Web
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# vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79:
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