Mercurial > ~mikael > mcabber > hg

annotate mcabber/mcabber/carbons.c @ 2118:51fde9c25401

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Reset carbons when the connection is closed Then, carbons are re-enabled when mcabber reconnects. Thanks to sezuan for the report.
author Mikael Berthe <mikael@lilotux.net>
date Mon, 09 Jun 2014 10:01:48 +0200
parents 9023a6f2bf6c
children 2ce6dd6861ea
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1 /*
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2 * carbons.c -- Support for Message Carbons (XEP 0280)
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3 *
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4 * Copyright (C) 2013 Roeland Jago Douma <roeland@famdouma.nl>
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5 *
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6 * This program is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 2 of the License, or (at
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9 * your option) any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful, but
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program; if not, write to the Free Software
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18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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19 * USA
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20 */
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21
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22 #include "carbons.h"
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23 #include "settings.h"
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24 #include "xmpp_helper.h"
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25 #include "xmpp_defines.h"
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26 #include "logprint.h"
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27 #include "xmpp.h"
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28
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29 static int _carbons_available = 0;
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30 static int _carbons_enabled = 0;
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31
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32 static LmHandlerResult cb_carbons(LmMessageHandler *h, LmConnection *c,
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33 LmMessage *m, gpointer user_data);
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34
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35
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36 void carbons_available()
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37 {
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38 int enable = 0;
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39 _carbons_available = 1;
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40
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41 enable = settings_opt_get_int("carbons");
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42
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43 if (enable) {
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44 carbons_enable();
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45 }
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46 }
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47
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48 void carbons_enable()
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49 {
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50 LmMessage *iq;
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51 LmMessageNode *enable;
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52 LmMessageHandler *handler;
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53 GError *error = NULL;
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54
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55 //We cannot enable carbons if there is no carbons support
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56 if (_carbons_available == 0) {
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57 scr_log_print(LPRINT_NORMAL, "Carbons not available on this server!");
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58 return;
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59 }
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60
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61 //We only have to enable carbons once
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62 if (_carbons_enabled == 1) {
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63 return;
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64 }
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65
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66 iq = lm_message_new_with_sub_type(NULL, LM_MESSAGE_TYPE_IQ,
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67 LM_MESSAGE_SUB_TYPE_SET);
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68
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69 enable = lm_message_node_add_child(iq->node, "enable", NULL);
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70 lm_message_node_set_attribute(enable, "xmlns", NS_CARBONS_2);
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71 handler = lm_message_handler_new(cb_carbons, NULL, NULL);
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72
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73 if (!lm_connection_send_with_reply(lconnection, iq, handler, &error)) {
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74 scr_log_print(LPRINT_DEBUG, "Error sending IQ request: %s.",
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75 error->message);
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76 g_error_free(error);
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77 }
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78
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79 lm_message_handler_unref(handler);
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80 lm_message_unref(iq);
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81 }
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82
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83 // Mark carbons as disabled (e.g. when a connection terminates)
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84 void carbons_reset()
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85 {
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86 _carbons_enabled = 0;
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87 }
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88
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89 void carbons_disable()
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90 {
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91 LmMessage *iq;
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92 LmMessageNode *disable;
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93 LmMessageHandler *handler;
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94 GError *error = NULL;
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95
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96 //We cannot disable carbons if there is no carbon support on the server
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97 if (_carbons_available == 0) {
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98 scr_log_print(LPRINT_NORMAL, "Carbons not available on this server!");
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99 return;
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100 }
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101
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102 //We can only disable carbons if they are disabled
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103 if (_carbons_enabled == 0) {
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104 return;
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105 }
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106
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107 iq = lm_message_new_with_sub_type(NULL, LM_MESSAGE_TYPE_IQ,
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108 LM_MESSAGE_SUB_TYPE_SET);
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109
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110 disable = lm_message_node_add_child(iq->node, "disable", NULL);
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111 lm_message_node_set_attribute(disable, "xmlns", NS_CARBONS_2);
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112 handler = lm_message_handler_new(cb_carbons, NULL, NULL);
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113
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114 if (!lm_connection_send_with_reply(lconnection, iq, handler, &error)) {
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115 scr_log_print(LPRINT_DEBUG, "Error sending IQ request: %s.",
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116 error->message);
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117 g_error_free(error);
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118 }
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119
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120 lm_message_handler_unref(handler);
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121 lm_message_unref(iq);
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122
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123 }
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124
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125 void carbons_info()
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126 {
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127 if (_carbons_enabled) {
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128 scr_log_print(LPRINT_NORMAL, "Carbons enabled.");
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129 } else {
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130 if (_carbons_available) {
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131 scr_log_print(LPRINT_NORMAL, "Carbons available, but not enabled.");
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132 } else {
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133 scr_log_print(LPRINT_NORMAL, "Carbons not available.");
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134 }
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135 }
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136 }
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137
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138 static LmHandlerResult cb_carbons(LmMessageHandler *h, LmConnection *c,
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139 LmMessage *m, gpointer user_data)
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140 {
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141 if (lm_message_get_sub_type(m) == LM_MESSAGE_SUB_TYPE_RESULT) {
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142 _carbons_enabled = (_carbons_enabled == 0 ? 1 : 0);
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143 if (_carbons_enabled) {
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144 scr_log_print(LPRINT_NORMAL, "Carbons enabled.");
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145 } else {
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146 scr_log_print(LPRINT_NORMAL, "Carbons disabled.");
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147 }
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148 } else {
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149 //Handle error cases
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150 }
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151
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152 return LM_HANDLER_RESULT_REMOVE_MESSAGE;
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153 }
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154
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155 /* vim: set et cindent cinoptions=>2\:2(0 ts=2 sw=2: For Vim users... */