Mercurial > ~mikael > mcabber > hg

annotate mcabber/mcabber/carbons.c @ 2222:ce1043326bbc

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Fix a small leak when a window is closed Also, fix a segfault when buffer close is called with a non-lowercase JID...
author Mikael Berthe <mikael@lilotux.net>
date Fri, 06 Nov 2015 20:33:31 +0100
parents 2ce6dd6861ea
children f5402d705f67
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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 gboolean carbons_enabled()
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49 {
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50 return (_carbons_enabled != 0);
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51 }
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52
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53 void carbons_enable()
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54 {
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55 LmMessage *iq;
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56 LmMessageNode *enable;
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57 LmMessageHandler *handler;
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58 GError *error = NULL;
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59
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60 //We cannot enable carbons if there is no carbons support
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61 if (_carbons_available == 0) {
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62 scr_log_print(LPRINT_NORMAL, "Carbons not available on this server!");
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63 return;
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64 }
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65
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66 //We only have to enable carbons once
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67 if (_carbons_enabled == 1) {
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68 return;
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69 }
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70
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71 iq = lm_message_new_with_sub_type(NULL, LM_MESSAGE_TYPE_IQ,
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72 LM_MESSAGE_SUB_TYPE_SET);
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73
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74 enable = lm_message_node_add_child(iq->node, "enable", NULL);
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75 lm_message_node_set_attribute(enable, "xmlns", NS_CARBONS_2);
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76 handler = lm_message_handler_new(cb_carbons, NULL, NULL);
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77
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78 if (!lm_connection_send_with_reply(lconnection, iq, handler, &error)) {
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79 scr_log_print(LPRINT_DEBUG, "Error sending IQ request: %s.",
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80 error->message);
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81 g_error_free(error);
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82 }
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83
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84 lm_message_handler_unref(handler);
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85 lm_message_unref(iq);
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86 }
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87
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88 // Mark carbons as disabled (e.g. when a connection terminates)
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89 void carbons_reset()
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90 {
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91 _carbons_enabled = 0;
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92 }
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93
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94 void carbons_disable()
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95 {
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96 LmMessage *iq;
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97 LmMessageNode *disable;
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98 LmMessageHandler *handler;
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99 GError *error = NULL;
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100
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101 //We cannot disable carbons if there is no carbon support on the server
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102 if (_carbons_available == 0) {
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103 scr_log_print(LPRINT_NORMAL, "Carbons not available on this server!");
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104 return;
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105 }
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106
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107 //We can only disable carbons if they are disabled
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108 if (_carbons_enabled == 0) {
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109 return;
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110 }
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111
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112 iq = lm_message_new_with_sub_type(NULL, LM_MESSAGE_TYPE_IQ,
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113 LM_MESSAGE_SUB_TYPE_SET);
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114
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115 disable = lm_message_node_add_child(iq->node, "disable", NULL);
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116 lm_message_node_set_attribute(disable, "xmlns", NS_CARBONS_2);
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117 handler = lm_message_handler_new(cb_carbons, NULL, NULL);
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118
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119 if (!lm_connection_send_with_reply(lconnection, iq, handler, &error)) {
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120 scr_log_print(LPRINT_DEBUG, "Error sending IQ request: %s.",
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121 error->message);
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122 g_error_free(error);
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123 }
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124
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125 lm_message_handler_unref(handler);
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126 lm_message_unref(iq);
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127
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128 }
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129
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130 void carbons_info()
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131 {
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132 if (_carbons_enabled) {
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133 scr_log_print(LPRINT_NORMAL, "Carbons enabled.");
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134 } else {
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135 if (_carbons_available) {
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136 scr_log_print(LPRINT_NORMAL, "Carbons available, but not enabled.");
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137 } else {
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138 scr_log_print(LPRINT_NORMAL, "Carbons not available.");
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139 }
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140 }
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141 }
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142
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143 static LmHandlerResult cb_carbons(LmMessageHandler *h, LmConnection *c,
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144 LmMessage *m, gpointer user_data)
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145 {
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146 if (lm_message_get_sub_type(m) == LM_MESSAGE_SUB_TYPE_RESULT) {
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147 _carbons_enabled = (_carbons_enabled == 0 ? 1 : 0);
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148 if (_carbons_enabled) {
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149 scr_log_print(LPRINT_NORMAL, "Carbons enabled.");
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150 } else {
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151 scr_log_print(LPRINT_NORMAL, "Carbons disabled.");
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152 }
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153 } else {
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154 //Handle error cases
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155 }
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156
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157 return LM_HANDLER_RESULT_REMOVE_MESSAGE;
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158 }
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159
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160 /* vim: set et cindent cinoptions=>2\:2(0 ts=2 sw=2: For Vim users... */