102 lines
3.7 KiB
Python
102 lines
3.7 KiB
Python
#!/usr/bin/env python2
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# -*- coding: utf-8 -*-
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# SAT helpers methods for plugins
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# Copyright (C) 2013-2016 Adrien Cossa (souliane@mailoo.org)
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import re
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# Regexp from http://daringfireball.net/2010/07/improved_regex_for_matching_urls
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RE_URL = re.compile(
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r"""(?i)\b((?:[a-z]{3,}://|(www|ftp)\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}/|mailto:|xmpp:|geo:)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?]))"""
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)
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# TODO: merge this class with an other module or at least rename it (strings is not a good name)
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def getURLParams(url):
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"""This comes from pyjamas.Location.makeUrlDict with a small change
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to also parse full URLs, and parameters with no value specified
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(in that case the default value "" is used).
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@param url: any URL with or without parameters
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@return: a dictionary of the parameters, if any was given, or {}
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"""
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dict_ = {}
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if "/" in url:
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# keep the part after the last "/"
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url = url[url.rindex("/") + 1 :]
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if url.startswith("?"):
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# remove the first "?"
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url = url[1:]
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pairs = url.split("&")
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for pair in pairs:
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if len(pair) < 3:
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continue
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kv = pair.split("=", 1)
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dict_[kv[0]] = kv[1] if len(kv) > 1 else ""
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return dict_
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def addURLToText(string, new_target=True):
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"""Check a text for what looks like an URL and make it clickable.
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@param string (unicode): text to process
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@param new_target (bool): if True, make the link open in a new window
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"""
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# XXX: report any change to libervia.browser.strings.addURLToText
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def repl(match):
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url = match.group(0)
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if not re.match(r"""[a-z]{3,}://|mailto:|xmpp:""", url):
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url = "http://" + url
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target = ' target="_blank"' if new_target else ""
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return '<a href="%s"%s class="url">%s</a>' % (url, target, match.group(0))
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return RE_URL.sub(repl, string)
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def addURLToImage(string):
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"""Check a XHTML text for what looks like an imageURL and make it clickable.
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@param string (unicode): text to process
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"""
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# XXX: report any change to libervia.browser.strings.addURLToImage
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def repl(match):
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url = match.group(1)
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return '<a href="%s" target="_blank">%s</a>' % (url, match.group(0))
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pattern = r"""<img[^>]* src="([^"]+)"[^>]*>"""
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return re.sub(pattern, repl, string)
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def fixXHTMLLinks(xhtml):
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"""Add http:// if the scheme is missing and force opening in a new window.
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@param string (unicode): XHTML Content
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"""
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subs = []
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for match in re.finditer(r'<a( \w+="[^"]*")* ?/?>', xhtml):
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tag = match.group(0)
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url = re.search(r'href="([^"]*)"', tag)
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if url and not url.group(1).startswith("#"): # skip internal anchor
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if not re.search(r'target="([^"]*)"', tag): # no target
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subs.append((tag, '<a target="_blank"%s' % tag[2:]))
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if not re.match(r"^\w+://", url.group(1)): # no scheme
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subs.append((url.group(0), 'href="http://%s"' % url.group(1)))
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for url, new_url in subs:
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xhtml = xhtml.replace(url, new_url)
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return xhtml
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