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annotate sat_frontends/tools/strings.py @ 3237:b0c57c9a4bd8

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plugin XEP-0384: OMEMO trust policy: OMEMO trust policy can now be specified. For now there are 2 policies: - `manual`: each new device fingerprint must be explicitly trusted or not before the device can be used, and the message sent - `BTBV` (Blind Trust Before Verification): each new device fingerprint is automically trusted, until user manually trust or not a device, in which case the behaviour becomes the same as for `manual` for the entity. When using the Trust UI, user can put the entity back to blind trust if they wish. A message is send as feedback to user when a new device is/must be trusted, trying to explain clearly what's happening to the user. Devices which have been automically trusted are marked, so user can know which ones may cause security issue.
author Goffi <goffi@goffi.org>
date Fri, 27 Mar 2020 10:02:14 +0100
parents 559a625a236b
children 524856bd7b19
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1 #!/usr/bin/env python3
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2
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3
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4 # SAT helpers methods for plugins
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5 # Copyright (C) 2013-2016 Adrien Cossa (souliane@mailoo.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 import re
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21
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22 # Regexp from http://daringfireball.net/2010/07/improved_regex_for_matching_urls
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23 RE_URL = re.compile(
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24 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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25 )
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28 # TODO: merge this class with an other module or at least rename it (strings is not a good name)
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30
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31 def getURLParams(url):
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32 """This comes from pyjamas.Location.makeUrlDict with a small change
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33 to also parse full URLs, and parameters with no value specified
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34 (in that case the default value "" is used).
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35 @param url: any URL with or without parameters
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36 @return: a dictionary of the parameters, if any was given, or {}
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37 """
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38 dict_ = {}
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39 if "/" in url:
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40 # keep the part after the last "/"
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41 url = url[url.rindex("/") + 1 :]
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42 if url.startswith("?"):
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43 # remove the first "?"
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44 url = url[1:]
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45 pairs = url.split("&")
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46 for pair in pairs:
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47 if len(pair) < 3:
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48 continue
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49 kv = pair.split("=", 1)
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50 dict_[kv[0]] = kv[1] if len(kv) > 1 else ""
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51 return dict_
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54 def addURLToText(string, new_target=True):
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55 """Check a text for what looks like an URL and make it clickable.
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56
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57 @param string (unicode): text to process
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58 @param new_target (bool): if True, make the link open in a new window
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59 """
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60 # XXX: report any change to libervia.browser.strings.addURLToText
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61 def repl(match):
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62 url = match.group(0)
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63 if not re.match(r"""[a-z]{3,}://|mailto:|xmpp:""", url):
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64 url = "http://" + url
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65 target = ' target="_blank"' if new_target else ""
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66 return '<a href="%s"%s class="url">%s</a>' % (url, target, match.group(0))
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67
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68 return RE_URL.sub(repl, string)
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71 def addURLToImage(string):
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72 """Check a XHTML text for what looks like an imageURL and make it clickable.
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73
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74 @param string (unicode): text to process
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75 """
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76 # XXX: report any change to libervia.browser.strings.addURLToImage
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77 def repl(match):
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78 url = match.group(1)
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79 return '<a href="%s" target="_blank">%s</a>' % (url, match.group(0))
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80
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81 pattern = r"""<img[^>]* src="([^"]+)"[^>]*>"""
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82 return re.sub(pattern, repl, string)
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83
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84
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85 def fixXHTMLLinks(xhtml):
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86 """Add http:// if the scheme is missing and force opening in a new window.
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87
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88 @param string (unicode): XHTML Content
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89 """
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90 subs = []
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91 for match in re.finditer(r'<a( \w+="[^"]*")* ?/?>', xhtml):
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92 tag = match.group(0)
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93 url = re.search(r'href="([^"]*)"', tag)
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94 if url and not url.group(1).startswith("#"): # skip internal anchor
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95 if not re.search(r'target="([^"]*)"', tag): # no target
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96 subs.append((tag, '<a target="_blank"%s' % tag[2:]))
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97 if not re.match(r"^\w+://", url.group(1)): # no scheme
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98 subs.append((url.group(0), 'href="http://%s"' % url.group(1)))
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99
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100 for url, new_url in subs:
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101 xhtml = xhtml.replace(url, new_url)
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102 return xhtml