annotate src/tmp/wokkel/delay.py @ 1662:9aa2a703e460

plugin group blog: group permissions are used if "group*" keys are found in mbdata (in data2entry and comments trigger)
author Goffi <goffi@goffi.org>
date Tue, 24 Nov 2015 16:21:18 +0100
parents 2d8fccec84e8
children
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1 # -*- coding: utf-8 -*-
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2 # -*- test-case-name: wokkel.test.test_delay -*-
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3 #
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4 # SàT adaptation for wokkel.delay
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5 # Copyright (C) 2015 Adien Cossa (souliane@mailoo.org)
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6 # Copyright (c) 2003-2012 Ralph Meijer.
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7
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8 # This program is free software: you can redistribute it and/or modify
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9 # it under the terms of the GNU Affero General Public License as published by
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10 # the Free Software Foundation, either version 3 of the License, or
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11 # (at your option) any later version.
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12
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13 # This program is distributed in the hope that it will be useful,
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14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 # GNU Affero General Public License for more details.
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17
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18 # You should have received a copy of the GNU Affero General Public License
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19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 # --
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21
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22 # This program is based on wokkel (https://wokkel.ik.nu/),
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23 # originaly written by Ralph Meijer
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24 # It is sublicensed under AGPL v3 (or any later version) as allowed by the original
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25 # license.
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26
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27 # --
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28
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29 # Here is a copy of the original license:
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30
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31 # Copyright (c) 2003-2012 Ralph Meijer.
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32 #
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33 # Permission is hereby granted, free of charge, to any person obtaining
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34 # a copy of this software and associated documentation files (the
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35 # "Software"), to deal in the Software without restriction, including
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36 # without limitation the rights to use, copy, modify, merge, publish,
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37 # distribute, sublicense, and/or sell copies of the Software, and to
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38 # permit persons to whom the Software is furnished to do so, subject to
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39 # the following conditions:
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40 #
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41 # The above copyright notice and this permission notice shall be
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42 # included in all copies or substantial portions of the Software.
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43 #
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44 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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45 # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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46 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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47 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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48 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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49 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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50 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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51 #
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52 # Copyright (c) Ralph Meijer.
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53 # See LICENSE for details.
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54
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55 """
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56 Delayed Delivery.
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57
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58 Support for comunicating Delayed Delivery information as specified by
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59 U{XEP-0203<http://xmpp.org/extensions/xep-0203.html>} and its predecessor
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60 U{XEP-0091<http://xmpp.org/extensions/xep-0091.html>}.
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61 """
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62
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63 from dateutil.parser import parse
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64 from dateutil.tz import tzutc
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65
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66 from twisted.words.protocols.jabber.jid import InvalidFormat, JID
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67 from twisted.words.xish import domish
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68
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69 NS_DELAY = 'urn:xmpp:delay'
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70 NS_JABBER_DELAY = 'jabber:x:delay'
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71
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72 class Delay(object):
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73 """
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74 Delayed Delivery information.
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75
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76 Instances of this class represent delayed delivery information that can be
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77 parsed from and rendered into both XEP-0203 and legacy XEP-0091 formats.
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78
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79 @ivar stamp: The timestamp the stanza was originally sent.
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80 @type stamp: L{datetime.datetime}
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81 @ivar sender: The optional entity that originally sent the stanza or
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82 delayed its delivery.
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83 @type sender: L{JID}
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84 """
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85
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86 def __init__(self, stamp, sender=None):
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87 self.stamp = stamp
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88 self.sender = sender
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89
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90
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91 def toElement(self, legacy=False):
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92 """
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93 Render this instance into a domish Element.
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94
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95 @param legacy: If C{True}, use the legacy XEP-0091 format.
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96 @type legacy: C{bool}
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97 """
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98 if not self.stamp:
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99 raise ValueError("stamp is required")
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100 if self.stamp.tzinfo is None:
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101 raise ValueError("stamp is not offset-aware")
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102
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103 if legacy:
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104 element = domish.Element((NS_JABBER_DELAY, 'x'))
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105 stampFormat = '%Y%m%dT%H:%M:%S'
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106 else:
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107 element = domish.Element((NS_DELAY, 'delay'))
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108 stampFormat = '%Y-%m-%dT%H:%M:%SZ'
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109
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110 stamp = self.stamp.astimezone(tzutc())
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111 element['stamp'] = stamp.strftime(stampFormat)
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112
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113 if self.sender:
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114 element['from'] = self.sender.full()
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115
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116 return element
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117
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118
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119 @staticmethod
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120 def fromElement(element):
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121 """
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122 Create an instance from a domish Element.
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123 """
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124 try:
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125 stamp = parse(element[u'stamp'])
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126
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127 # Assume UTC if no timezone was given
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128 if stamp.tzinfo is None:
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129 stamp = stamp.replace(tzinfo=tzutc())
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130 except (KeyError, ValueError, TypeError):
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131 stamp = None
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132
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souliane <souliane@mailoo.org>
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133 try:
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134 sender = JID(element[u'from'])
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135 except (KeyError, InvalidFormat):
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136 sender = None
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137
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138 delay = Delay(stamp, sender)
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139 return delay
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140
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141
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142
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143 class DelayMixin(object):
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144 """
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145 Mixin for parsing delayed delivery information from stanzas.
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146
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147 This can be used as a mixin for subclasses of L{wokkel.generic.Stanza}
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148 for parsing delayed delivery information. If both XEP-0203 and XEP-0091
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149 formats are present, the former takes precedence.
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150 """
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151
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152 delay = None
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153
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154 childParsers = {
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155 (NS_DELAY, 'delay'): '_childParser_delay',
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156 (NS_JABBER_DELAY, 'x'): '_childParser_legacyDelay',
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157 }
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158
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159
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160 def _childParser_delay(self, element):
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161 self.delay = Delay.fromElement(element)
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162
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163
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164 def _childParser_legacyDelay(self, element):
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165 if not self.delay:
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166 self.delay = Delay.fromElement(element)