annotate src/browser/sat_browser/json.py @ 979:1d558dfb32ca

server: pages redirection: when using a redirection dict, a new "page" key can be used to redirect to a named page. "args" can be added to specified named arguments to set (will be put in request.args, in addition to existing ones). The redirection is done dynamically, during the request workflow.
author Goffi <goffi@goffi.org>
date Sun, 12 Nov 2017 12:56:46 +0100
parents fd4eae654182
children f2170536ba23
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 # Libervia: a Salut à Toi frontend
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5 # Copyright (C) 2011-2017 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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20
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21 ### logging configuration ###
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22 from sat.core.log import getLogger
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23 log = getLogger(__name__)
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24 ###
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25
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26 from pyjamas.Timer import Timer
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27 from pyjamas import Window
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28 from pyjamas import JSONService
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29 import time
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30 from sat_browser import main_panel
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31
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32 from sat_browser.constants import Const as C
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33 import random
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34
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35
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36 class LiberviaMethodProxy(object):
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37 """This class manage calling for one method"""
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38
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39 def __init__(self, parent, method):
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40 self._parent = parent
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41 self._method = method
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42
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43 def call(self, *args, **kwargs):
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44 """Method called when self._method attribue is used in JSON_PROXY_PARENT
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45
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46 This method manage callback/errback in kwargs, and profile(_key) removing
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47 @param *args: positional arguments of self._method
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48 @param **kwargs: keyword arguments of self._method
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49 """
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50 callback=kwargs.pop('callback', None)
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51 errback=kwargs.pop('errback', None)
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52
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53 # as profile is linked to browser session and managed server side, we remove them
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54 profile_removed = False
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55 try:
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56 kwargs['profile'] # FIXME: workaround for pyjamas bug: KeyError is not raised with del
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57 del kwargs['profile']
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58 profile_removed = True
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59 except KeyError:
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60 pass
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61
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62 try:
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63 kwargs['profile_key'] # FIXME: workaround for pyjamas bug: KeyError is not raised iwith del
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64 del kwargs['profile_key']
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65 profile_removed = True
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66 except KeyError:
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67 pass
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68
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69 if not profile_removed and args:
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70 # if profile was not in kwargs, there is most probably one in args
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71 args = list(args)
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72 assert isinstance(args[-1], basestring) # Detect when we want to remove a callback (or something else) instead of the profile
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73 del args[-1]
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74
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75 if kwargs:
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76 # kwargs should be empty here, we don't manage keyword arguments on bridge calls
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77 log.error(u"kwargs is not empty after treatment on method call: kwargs={}".format(kwargs))
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78
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79 id_ = self._parent.callMethod(self._method, args)
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80
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81 # callback or errback are managed in parent LiberviaJsonProxy with call id
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82 if callback is not None:
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83 self._parent.cb[id_] = callback
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84 if errback is not None:
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85 self._parent.eb[id_] = errback
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86
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87
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88 class LiberviaJsonProxy(JSONService.JSONService):
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89
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90 def __init__(self, url, methods):
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91 self._serviceURL = url
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92 self.methods = methods
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93 JSONService.JSONService.__init__(self, url, self)
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94 self.cb = {}
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95 self.eb = {}
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96 self._registerMethods(methods)
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97
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98 def _registerMethods(self, methods):
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99 if methods:
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100 for method in methods:
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101 log.debug(u"Registering JSON method call [{}]".format(method))
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102 setattr(self,
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103 method,
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104 getattr(LiberviaMethodProxy(self, method), 'call')
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105 )
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106
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107 def callMethod(self, method, params, handler = None):
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108 ret = super(LiberviaJsonProxy, self).callMethod(method, params, handler)
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109 return ret
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111 def call(self, method, cb, *args):
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112 # FIXME: deprecated call method, must be removed once it's not used anymore
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113 id_ = self.callMethod(method, args)
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114 log.debug(u"call: method={} [id={}], args={}".format(method, id_, args))
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115 if cb:
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116 if isinstance(cb, tuple):
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117 if len(cb) != 2:
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118 log.error("tuple syntax for bridge.call is (callback, errback), aborting")
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119 return
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120 if cb[0] is not None:
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121 self.cb[id_] = cb[0]
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122 self.eb[id_] = cb[1]
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123 else:
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124 self.cb[id_] = cb
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125
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126 def onRemoteResponse(self, response, request_info):
589
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127 try:
132
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128 _cb = self.cb[request_info.id]
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129 except KeyError:
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130 pass
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131 else:
203
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132 _cb(response)
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133 del self.cb[request_info.id]
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134
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135 try:
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136 del self.eb[request_info.id]
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137 except KeyError:
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138 pass
226
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139
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140 def onRemoteError(self, code, errobj, request_info):
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141 """def dump(obj):
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142 print "\n\nDUMPING %s\n\n" % obj
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143 for i in dir(obj):
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144 print "%s: %s" % (i, getattr(obj,i))"""
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145 try:
203
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146 _eb = self.eb[request_info.id]
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147 except KeyError:
203
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148 if code != 0:
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149 log.error("Internal server error")
203
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150 """for o in code, error, request_info:
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151 dump(o)"""
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152 else:
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153 if isinstance(errobj['message'], dict):
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154 log.error(u"Error %s: %s" % (errobj['message']['faultCode'], errobj['message']['faultString']))
203
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155 else:
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156 log.error(u"%s" % errobj['message'])
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157 else:
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158 _eb((code, errobj))
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159 del self.eb[request_info.id]
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160
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161 try:
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162 del self.cb[request_info.id]
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163 except KeyError:
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164 pass
239
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165
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166
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167 class RegisterCall(LiberviaJsonProxy):
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168 def __init__(self):
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169 LiberviaJsonProxy.__init__(self, "/register_api",
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170 ["getSessionMetadata", "isConnected", "connect", "registerParams", "menusGet"])
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171
239
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172
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173 class BridgeCall(LiberviaJsonProxy):
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174 def __init__(self):
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175 LiberviaJsonProxy.__init__(self, "/json_api",
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176 ["getContacts", "addContact", "messageSend",
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177 "psNodeDelete", "psRetractItem", "psRetractItems",
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178 "mbSend", "mbRetract", "mbGet", "mbGetFromMany", "mbGetFromManyRTResult",
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179 "mbGetFromManyWithComments", "mbGetFromManyWithCommentsRTResult",
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180 "historyGet", "getPresenceStatuses", "joinMUC", "mucLeave", "mucGetRoomsJoined",
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181 "inviteMUC", "launchTarotGame", "getTarotCardsPaths", "tarotGameReady",
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182 "tarotGamePlayCards", "launchRadioCollective",
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183 "getWaitingSub", "subscription", "delContact", "updateContact", "avatarGet",
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184 "getEntityData", "getParamsUI", "asyncGetParamA", "setParam", "launchAction",
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185 "disconnect", "chatStateComposing", "getNewAccountDomain",
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186 "syntaxConvert", "getAccountDialogUI", "getMainResource", "getEntitiesData",
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187 "getVersion", "getLiberviaVersion", "mucGetDefaultService", "getFeatures",
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parents: 146
diff changeset
188 ])
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189
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190 def __call__(self, *args, **kwargs):
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191 return LiberviaJsonProxy.__call__(self, *args, **kwargs)
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192
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193 def getConfig(self, dummy1, dummy2): # FIXME
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194 log.warning("getConfig is not implemeted in Libervia yet")
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195 return ''
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196
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197 def isConnected(self, dummy, callback): # FIXME
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198 log.warning("isConnected is not implemeted in Libervia as for now profile is connected if session is opened")
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199 callback(True)
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200
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201 def bridgeConnect(self, callback, errback):
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202 callback()
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203
242
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204
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205 class BridgeSignals(LiberviaJsonProxy):
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206
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207 def __init__(self, host):
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208 self.host = host
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209 self.retry_time = None
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210 self.retry_nb = 0
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211 self.retry_warning = None
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212 self.retry_timer = None
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213 LiberviaJsonProxy.__init__(self, "/json_signal_api",
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214 ["getSignals"])
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215 self._signals = {} # key: signal name, value: callback
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216
157
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217 def onRemoteResponse(self, response, request_info):
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218 if self.retry_time:
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219 log.info("Connection with server restablished")
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220 self.retry_nb = 0
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221 self.retry_time = None
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222 LiberviaJsonProxy.onRemoteResponse(self, response, request_info)
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diff changeset
223
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diff changeset
224 def onRemoteError(self, code, errobj, request_info):
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225 if errobj['message'] == 'Empty Response':
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226 log.warning(u"Empty reponse bridgeSignal\ncode={}\nrequest_info: id={} method={} handler={}".format(code, request_info.id, request_info.method, request_info.handler))
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227 # FIXME: to check/replace by a proper session end on disconnected signal
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228 # Window.getLocation().reload() # XXX: reset page in case of session ended.
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229 # FIXME: Should be done more properly without hard reload
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230 LiberviaJsonProxy.onRemoteError(self, code, errobj, request_info)
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231 #we now try to reconnect
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232 if isinstance(errobj['message'], dict) and errobj['message']['faultCode'] == 0:
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233 Window.alert('You are not allowed to connect to server')
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234 else:
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235 def _timerCb(dummy):
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236 current = time.time()
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237 if current > self.retry_time:
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238 msg = "Trying to reconnect to server..."
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239 log.info(msg)
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240 self.retry_warning.showWarning("INFO", msg)
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241 self.retry_timer.cancel()
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242 self.retry_warning = self.retry_timer = None
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243 self.getSignals(callback=self.signalHandler, profile=None)
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244 else:
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245 remaining = int(self.retry_time - current)
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246 msg_html = u"Connection with server lost. Retrying in <strong>{}</strong> s".format(remaining)
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247 self.retry_warning.showWarning("WARNING", msg_html, None)
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248
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249 if self.retry_nb < 3:
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250 retry_delay = 1
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251 elif self.retry_nb < 10:
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252 retry_delay = random.randint(1,10)
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253 else:
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254 retry_delay = random.randint(1,60)
845
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255 self.retry_nb += 1
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256 log.warning(u"Lost connection, trying to reconnect in {} s (try #{})".format(retry_delay, self.retry_nb))
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257 self.retry_time = time.time() + retry_delay
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258 self.retry_warning = main_panel.WarningPopup()
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259 self.retry_timer = Timer(notify=_timerCb)
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260 self.retry_timer.scheduleRepeating(1000)
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261 _timerCb(None)
2
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262
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263 def register_signal(self, name, callback, with_profile=True):
589
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264 """Register a signal
226
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265
589
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266 @param: name of the signal to register
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267 @param callback: method to call
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268 @param with_profile: True if the original bridge method need a profile
267
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269 """
694
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270 log.debug(u"Registering signal {}".format(name))
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271 if name in self._signals:
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272 log.error(u"Trying to register and already registered signal ({})".format(name))
267
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273 else:
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274 self._signals[name] = (callback, with_profile)
426
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diff changeset
275
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276 def signalHandler(self, signal_data):
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277 self.getSignals(callback=self.signalHandler, profile=None)
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278 if len(signal_data) == 1:
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279 signal_data.append([])
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280 log.debug(u"Got signal ==> name: %s, params: %s" % (signal_data[0], signal_data[1]))
226
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diff changeset
281 name, args = signal_data
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282 try:
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283 callback, with_profile = self._signals[name]
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284 except KeyError:
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diff changeset
285 log.warning(u"Ignoring {} signal: no handler registered !".format(name))
205
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parents: 204
diff changeset
286 return
589
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287 if with_profile:
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diff changeset
288 args.append(C.PROF_KEY_NONE)
700
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parents: 697
diff changeset
289 if not self.host._profile_plugged:
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diff changeset
290 log.debug("Profile is not plugged, we cache the signal")
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parents: 697
diff changeset
291 self.host.signals_cache[C.PROF_KEY_NONE].append((name, callback, args, {}))
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diff changeset
292 else:
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diff changeset
293 callback(*args)