Mercurial > libervia-backend

annotate sat_frontends/tools/jid.py @ 3542:53c1724a89ea

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core (xmpp): catch `cancelError` in `pre_xml_treatments` in message workflow
author Goffi <goffi@goffi.org>
date Thu, 03 Jun 2021 15:40:57 +0200
parents be6d91572633
children 524856bd7b19
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1 #!/usr/bin/env python3
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2
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4 # SAT: a jabber client
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5 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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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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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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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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21 # hack to use this module with pyjamas
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22 try:
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23 str("") # XXX: unicode doesn't exist in pyjamas
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24
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25 # normal version
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26 class BaseJID(str):
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27 def __new__(cls, jid_str):
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28 self = str.__new__(cls, cls._normalize(jid_str))
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29 return self
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30
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31 def __init__(self, jid_str):
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32 pass
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33
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34 def _parse(self):
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35 """Find node domain and resource"""
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36 node_end = self.find("@")
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37 if node_end < 0:
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38 node_end = 0
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39 domain_end = self.find("/")
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40 if domain_end == 0:
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41 raise ValueError("a jid can't start with '/'")
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42 if domain_end == -1:
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43 domain_end = len(self)
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44 self.node = self[:node_end] or None
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45 self.domain = self[(node_end + 1) if node_end else 0 : domain_end]
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46 self.resource = self[domain_end + 1 :] or None
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47
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48
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49 except (
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50 TypeError,
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51 AttributeError,
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52 ): # Error raised is not the same depending on pyjsbuild options
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53
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54 # pyjamas version
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55 class BaseJID(object):
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56 def __init__(self, jid_str):
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57 self.__internal_str = JID._normalize(jid_str)
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58
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59 def __str__(self):
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60 return self.__internal_str
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61
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62 def __getattr__(self, name):
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63 return getattr(self.__internal_str, name)
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64
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65 def __eq__(self, other):
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66 if not isinstance(other, JID):
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67 return False
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68 return (
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69 self.node == other.node
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70 and self.domain == other.domain
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71 and self.resource == other.resource
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72 )
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73
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74 def __hash__(self):
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75 return hash("JID<{}>".format(self.__internal_str))
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76
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77 def find(self, *args):
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78 return self.__internal_str.find(*args)
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79
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80 def _parse(self):
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81 """Find node domain and resource"""
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82 node_end = self.__internal_str.find("@")
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83 if node_end < 0:
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84 node_end = 0
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85 domain_end = self.__internal_str.find("/")
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86 if domain_end == 0:
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87 raise ValueError("a jid can't start with '/'")
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88 if domain_end == -1:
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89 domain_end = len(self.__internal_str)
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90 self.node = self.__internal_str[:node_end] or None
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91 self.domain = self.__internal_str[
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92 (node_end + 1) if node_end else 0 : domain_end
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93 ]
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94 self.resource = self.__internal_str[domain_end + 1 :] or None
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95
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96
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97 class JID(BaseJID):
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98 """This class help manage JID (Node@Domaine/Resource)"""
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99
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100 def __init__(self, jid_str):
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101 super(JID, self).__init__(jid_str)
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102 self._parse()
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103
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104 @staticmethod
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105 def _normalize(jid_str):
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106 """Naive normalization before instantiating and parsing the JID"""
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107 if not jid_str:
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108 return jid_str
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109 tokens = jid_str.split("/")
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110 tokens[0] = tokens[0].lower() # force node and domain to lower-case
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111 return "/".join(tokens)
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112
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113 @property
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114 def bare(self):
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115 if not self.node:
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116 return JID(self.domain)
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117 return JID("{}@{}".format(self.node, self.domain))
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118
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119 def is_valid(self):
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120 """
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121 @return: True if the JID is XMPP compliant
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122 """
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123 # TODO: implement real check, according to the RFC http://tools.ietf.org/html/rfc6122
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124 return self.domain != ""
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125
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126
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127 def newResource(entity, resource):
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128 """Build a new JID from the given entity and resource.
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129
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130 @param entity (JID): original JID
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131 @param resource (unicode): new resource
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132 @return: a new JID instance
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133 """
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134 return JID("%s/%s" % (entity.bare, resource))