annotate src/plugins/plugin_xep_0071.py @ 2105:c96fe007ca41

core(constants): added a constant for profile extension (PLUGIN_EXT): this constant may be modified if needed, which is the case on Android (it's modified by Cagou service's main.py), so platform detection is not needed anymore in sat_main.py.
author Goffi <goffi@goffi.org>
date Sun, 25 Dec 2016 16:43:56 +0100
parents 3626b2813158
children 2d633b3c923d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1934
2daf7b4c6756 use of /usr/bin/env instead of /usr/bin/python in shebang
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1 #!/usr/bin/env python2
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2 # -*- coding: utf-8 -*-
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3
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4 # SAT plugin for Publish-Subscribe (xep-0071)
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d17772b0fe22 copyright update
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5 # Copyright (C) 2009-2016 Jérôme Poisson (goffi@goffi.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 from sat.core.i18n import _
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21 from sat.core.constants import Const as C
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22 from sat.core import exceptions
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23 from sat.core.log import getLogger
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24 log = getLogger(__name__)
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25 from sat.tools.common import data_format
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26
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27 from twisted.internet import defer
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28 from wokkel import disco, iwokkel
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29 from zope.interface import implements
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30 # from lxml import etree
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31 try:
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32 from lxml import html
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33 except ImportError:
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34 raise exceptions.MissingModule(u"Missing module lxml, please download/install it from http://lxml.de/")
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35 try:
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36 from twisted.words.protocols.xmlstream import XMPPHandler
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37 except ImportError:
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38 from wokkel.subprotocols import XMPPHandler
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39
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40 NS_XHTML_IM = 'http://jabber.org/protocol/xhtml-im'
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41 NS_XHTML = 'http://www.w3.org/1999/xhtml'
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42
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43 PLUGIN_INFO = {
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44 "name": "XHTML-IM Plugin",
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45 "import_name": "XEP-0071",
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46 "type": "XEP",
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47 "protocols": ["XEP-0071"],
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48 "dependencies": ["TEXT-SYNTAXES"],
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49 "main": "XEP_0071",
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50 "handler": "yes",
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51 "description": _("""Implementation of XHTML-IM""")
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52 }
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53
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54 allowed = {
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55 "a": set(["href", "style", "type"]),
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56 "blockquote": set(["style"]),
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57 "body": set(["style"]),
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58 "br": set([]),
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59 "cite": set(["style"]),
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60 "em": set([]),
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61 "img": set(["alt", "height", "src", "style", "width"]),
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62 "li": set(["style"]),
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63 "ol": set(["style"]),
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64 "p": set(["style"]),
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65 "span": set(["style"]),
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66 "strong": set([]),
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67 "ul": set(["style"]),
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68 }
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69
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70 styles_allowed = ["background-color", "color", "font-family", "font-size", "font-style", "font-weight", "margin-left", "margin-right", "text-align", "text-decoration"]
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71
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72 blacklist = ['script'] # tag that we have to kill (we don't keep content)
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73
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74
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75 class XEP_0071(object):
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76 SYNTAX_XHTML_IM = "XHTML-IM"
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77
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78 def __init__(self, host):
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79 log.info(_("XHTML-IM plugin initialization"))
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80 self.host = host
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81 self._s = self.host.plugins["TEXT-SYNTAXES"]
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82 self._s.addSyntax(self.SYNTAX_XHTML_IM, lambda xhtml: xhtml, self.XHTML2XHTML_IM, [self._s.OPT_HIDDEN])
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83 host.trigger.add("MessageReceived", self.messageReceivedTrigger)
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84 host.trigger.add("messageSend", self.messageSendTrigger)
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85
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86 def getHandler(self, profile):
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87 return XEP_0071_handler(self)
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88
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89 def _messagePostTreat(self, data, body_elts):
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90 """Callback which manage the post treatment of the message in case of XHTML-IM found
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91 @param data: data send by MessageReceived trigger through post_treat deferred
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92 @param body_elts: XHTML-IM body elements found
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93 @return: the data with the extra parameter updated
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94 """
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95 # TODO: check if text only body is empty, then try to convert XHTML-IM to pure text and show a warning message
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96 def converted(xhtml, lang):
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97 if lang:
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98 data['extra']['xhtml_{}'.format(lang)] = xhtml
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99 else:
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100 data['extra']['xhtml'] = xhtml
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101
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102 defers = []
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103 for body_elt in body_elts:
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104 lang = body_elt.getAttribute((C.NS_XML, 'lang'), '')
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105 d = self._s.convert(body_elt.toXml(), self.SYNTAX_XHTML_IM, safe=True)
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106 d.addCallback(converted, lang)
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107 defers.append(d)
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108
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109 d_list = defer.DeferredList(defers)
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110 d_list.addCallback(lambda dummy: data)
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111 return d_list
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112
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113 def _fill_body_text(self, text, data, lang):
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114 data['message'][lang or ''] = text
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115 message_elt = data['xml']
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116 body_elt = message_elt.addElement("body", content=text)
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117 if lang:
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118 body_elt[(C.NS_XML, 'lang')] = lang
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119
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120 def _check_body_text(self, data, lang, markup, syntax, defers):
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121 """check if simple text message exists, and fill if needed"""
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122 if not (lang or '') in data['message']:
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123 d = self._s.convert(markup, syntax, self._s.SYNTAX_TEXT)
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124 d.addCallback(self._fill_body_text, data, lang)
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125 defers.append(d)
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126
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127 def _messageSendAddRich(self, data, client):
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128 """ Construct XHTML-IM node and add it XML element
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129
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130 @param data: message data as sended by messageSend callback
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131 """
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132 # at this point, either ['extra']['rich'] or ['extra']['xhtml'] exists
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133 # but both can't exist at the same time
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
134 message_elt = data['xml']
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
135 html_elt = message_elt.addElement((NS_XHTML_IM, 'html'))
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
136
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
137 def syntax_converted(xhtml_im, lang):
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
138 body_elt = html_elt.addElement((NS_XHTML, 'body'))
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
139 if lang:
1963
a2bc5089c2eb backend, frontends: message refactoring (huge commit):
Goffi <goffi@goffi.org>
parents: 1955
diff changeset
140 body_elt[(C.NS_XML, 'lang')] = lang
1955
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
141 data['extra']['xhtml_{}'.format(lang)] = xhtml_im
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
142 else:
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
143 data['extra']['xhtml'] = xhtml_im
702
a25db3fe3959 plugin XEP-0071: rich messages management for sendMessage
Goffi <goffi@goffi.org>
parents: 701
diff changeset
144 body_elt.addRawXml(xhtml_im)
a25db3fe3959 plugin XEP-0071: rich messages management for sendMessage
Goffi <goffi@goffi.org>
parents: 701
diff changeset
145
1955
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
146 syntax = self._s.getCurrentSyntax(client.profile)
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
147 defers = []
2080
3626b2813158 plugin XEP-0071: fixed rich and xhtml sending + add simple text body if not present
Goffi <goffi@goffi.org>
parents: 1963
diff changeset
148 if u'xhtml' in data['extra']:
1955
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
149 # we have directly XHTML
2080
3626b2813158 plugin XEP-0071: fixed rich and xhtml sending + add simple text body if not present
Goffi <goffi@goffi.org>
parents: 1963
diff changeset
150 for lang, xhtml in data_format.getSubDict('xhtml', data['extra']):
3626b2813158 plugin XEP-0071: fixed rich and xhtml sending + add simple text body if not present
Goffi <goffi@goffi.org>
parents: 1963
diff changeset
151 self._check_body_text(data, lang, xhtml, self._s.SYNTAX_XHTML, defers)
1955
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
152 d = self._s.convert(xhtml, self._s.SYNTAX_XHTML, self.SYNTAX_XHTML_IM)
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
153 d.addCallback(syntax_converted, lang)
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
154 defers.append(d)
2080
3626b2813158 plugin XEP-0071: fixed rich and xhtml sending + add simple text body if not present
Goffi <goffi@goffi.org>
parents: 1963
diff changeset
155 elif u'rich' in data['extra']:
1955
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
156 # we have rich syntax to convert
2080
3626b2813158 plugin XEP-0071: fixed rich and xhtml sending + add simple text body if not present
Goffi <goffi@goffi.org>
parents: 1963
diff changeset
157 for lang, rich_data in data_format.getSubDict('rich', data['extra']):
3626b2813158 plugin XEP-0071: fixed rich and xhtml sending + add simple text body if not present
Goffi <goffi@goffi.org>
parents: 1963
diff changeset
158 self._check_body_text(data, lang, rich_data, syntax, defers)
1955
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
159 d = self._s.convert(rich_data, syntax, self.SYNTAX_XHTML_IM)
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
160 d.addCallback(syntax_converted, lang)
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
161 defers.append(d)
2080
3626b2813158 plugin XEP-0071: fixed rich and xhtml sending + add simple text body if not present
Goffi <goffi@goffi.org>
parents: 1963
diff changeset
162 else:
3626b2813158 plugin XEP-0071: fixed rich and xhtml sending + add simple text body if not present
Goffi <goffi@goffi.org>
parents: 1963
diff changeset
163 exceptions.InternalError(u"xhtml or rich should be present at this point")
1955
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
164 d_list = defer.DeferredList(defers)
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
165 d_list.addCallback(lambda dummy: data)
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
166 return d_list
702
a25db3fe3959 plugin XEP-0071: rich messages management for sendMessage
Goffi <goffi@goffi.org>
parents: 701
diff changeset
167
1955
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
168 def messageReceivedTrigger(self, client, message, post_treat):
668
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
169 """ Check presence of XHTML-IM in message
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
170 """
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
171 try:
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
172 html_elt = message.elements(NS_XHTML_IM, 'html').next()
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
173 except StopIteration:
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
174 # No XHTML-IM
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
175 pass
1955
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
176 else:
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
177 body_elts = html_elt.elements(NS_XHTML, 'body')
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
178 post_treat.addCallback(self._messagePostTreat, body_elts)
668
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
179 return True
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
180
1955
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
181 def messageSendTrigger(self, client, data, pre_xml_treatments, post_xml_treatments):
2080
3626b2813158 plugin XEP-0071: fixed rich and xhtml sending + add simple text body if not present
Goffi <goffi@goffi.org>
parents: 1963
diff changeset
182 """ Check presence of rich text in extra """
1955
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
183 rich = {}
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
184 xhtml = {}
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
185 for key, value in data['extra'].iteritems():
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
186 if key.startswith('rich'):
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
187 rich[key[5:]] = value
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
188 elif key.startswith('xhtml'):
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
189 xhtml[key[6:]] = value
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
190 if rich and xhtml:
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
191 raise exceptions.DataError(_(u"Can't have XHTML and rich content at the same time"))
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
192 if rich or xhtml:
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
193 if rich:
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
194 data['rich'] = rich
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
195 else:
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
196 data['xhtml'] = xhtml
633b5c21aefd backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
197 post_xml_treatments.addCallback(self._messageSendAddRich, client)
702
a25db3fe3959 plugin XEP-0071: rich messages management for sendMessage
Goffi <goffi@goffi.org>
parents: 701
diff changeset
198 return True
a25db3fe3959 plugin XEP-0071: rich messages management for sendMessage
Goffi <goffi@goffi.org>
parents: 701
diff changeset
199
668
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
200 def _purgeStyle(self, styles_raw):
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
201 """ Remove unauthorised styles according to the XEP-0071
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
202 @param styles_raw: raw styles (value of the style attribute)
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
203 """
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
204 purged = []
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
205
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
206 styles = [style.strip().split(':') for style in styles_raw.split(';')]
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
207
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
208 for style_tuple in styles:
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
209 if len(style_tuple) != 2:
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
210 continue
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
211 name, value = style_tuple
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
212 name = name.strip()
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
213 if name not in styles_allowed:
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
214 continue
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
215 purged.append((name, value.strip()))
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
216
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
217 return u'; '.join([u"%s: %s" % data for data in purged])
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
218
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
219 def XHTML2XHTML_IM(self, xhtml):
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
220 """ Convert XHTML document to XHTML_IM subset
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
221 @param xhtml: raw xhtml to convert
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
222 """
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
223 # TODO: more clever tag replacement (replace forbidden tags with equivalents when possible)
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
224
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
225 parser = html.HTMLParser(remove_comments=True, encoding='utf-8')
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
226 root = html.fromstring(xhtml, parser=parser)
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
227 body_elt = root.find('body')
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
228 if body_elt is None:
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
229 # we use the whole XML as body if no body element is found
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
230 body_elt = html.Element('body')
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
231 body_elt.append(root)
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
232 else:
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
233 body_elt.attrib.clear()
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
234
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
235 allowed_tags = allowed.keys()
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
236 to_strip = []
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
237 for elem in body_elt.iter():
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
238 if elem.tag not in allowed_tags:
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
239 to_strip.append(elem)
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
240 else:
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
241 # we remove unallowed attributes
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
242 attrib = elem.attrib
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
243 att_to_remove = set(attrib).difference(allowed[elem.tag])
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
244 for att in att_to_remove:
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
245 del(attrib[att])
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
246 if "style" in attrib:
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
247 attrib["style"] = self._purgeStyle(attrib["style"])
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
248
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
249 for elem in to_strip:
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
250 if elem.tag in blacklist:
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
251 #we need to remove the element and all descendants
993
301b342c697a core: use of the new core.log module:
Goffi <goffi@goffi.org>
parents: 922
diff changeset
252 log.debug(u"removing black listed tag: %s" % (elem.tag))
668
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
253 elem.drop_tree()
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
254 else:
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
255 elem.drop_tag()
701
98b2400e17d6 plugin XEP-0071: XHTML2XHTML_IM don't return the <body> root tag anymore.
Goffi <goffi@goffi.org>
parents: 668
diff changeset
256 if len(body_elt) !=1:
98b2400e17d6 plugin XEP-0071: XHTML2XHTML_IM don't return the <body> root tag anymore.
Goffi <goffi@goffi.org>
parents: 668
diff changeset
257 root_elt = body_elt
98b2400e17d6 plugin XEP-0071: XHTML2XHTML_IM don't return the <body> root tag anymore.
Goffi <goffi@goffi.org>
parents: 668
diff changeset
258 body_elt.tag = "p"
98b2400e17d6 plugin XEP-0071: XHTML2XHTML_IM don't return the <body> root tag anymore.
Goffi <goffi@goffi.org>
parents: 668
diff changeset
259 else:
98b2400e17d6 plugin XEP-0071: XHTML2XHTML_IM don't return the <body> root tag anymore.
Goffi <goffi@goffi.org>
parents: 668
diff changeset
260 root_elt = body_elt[0]
668
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
261
701
98b2400e17d6 plugin XEP-0071: XHTML2XHTML_IM don't return the <body> root tag anymore.
Goffi <goffi@goffi.org>
parents: 668
diff changeset
262 return html.tostring(root_elt, encoding='unicode', method='xml')
668
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
263
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
264 class XEP_0071_handler(XMPPHandler):
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
265 implements(iwokkel.IDisco)
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
266
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
267 def __init__(self, plugin_parent):
7bb50096d225 plugin XEP_0071: first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
268 self.plugin_parent = plugin_parent
7bb50096d225 plugin XEP_0071: first draft
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269 self.host = plugin_parent.host
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270
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271 def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
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272 return [disco.DiscoFeature(NS_XHTML_IM)]
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273
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274 def getDiscoItems(self, requestor, target, nodeIdentifier=''):
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275 return []