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annotate mcabber/mcabber/carbons.c @ 2268:f5402d705f67

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Fix FSF addresses in all files
author Mikael Berthe <mikael@lilotux.net>
date Sun, 05 Jun 2016 20:06:46 +0200
parents 2ce6dd6861ea
children
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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, see <http://www.gnu.org/licenses/>.
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18 */
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19
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20 #include "carbons.h"
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21 #include "settings.h"
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22 #include "xmpp_helper.h"
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23 #include "xmpp_defines.h"
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24 #include "logprint.h"
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25 #include "xmpp.h"
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26
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27 static int _carbons_available = 0;
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28 static int _carbons_enabled = 0;
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29
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30 static LmHandlerResult cb_carbons(LmMessageHandler *h, LmConnection *c,
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31 LmMessage *m, gpointer user_data);
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32
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33
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34 void carbons_available()
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35 {
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36 int enable = 0;
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37 _carbons_available = 1;
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38
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39 enable = settings_opt_get_int("carbons");
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40
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41 if (enable) {
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42 carbons_enable();
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43 }
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44 }
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45
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46 gboolean carbons_enabled()
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47 {
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48 return (_carbons_enabled != 0);
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49 }
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50
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51 void carbons_enable()
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52 {
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53 LmMessage *iq;
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54 LmMessageNode *enable;
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55 LmMessageHandler *handler;
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56 GError *error = NULL;
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57
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58 //We cannot enable carbons if there is no carbons support
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59 if (_carbons_available == 0) {
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60 scr_log_print(LPRINT_NORMAL, "Carbons not available on this server!");
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61 return;
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62 }
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63
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64 //We only have to enable carbons once
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65 if (_carbons_enabled == 1) {
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66 return;
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67 }
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68
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69 iq = lm_message_new_with_sub_type(NULL, LM_MESSAGE_TYPE_IQ,
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70 LM_MESSAGE_SUB_TYPE_SET);
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71
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72 enable = lm_message_node_add_child(iq->node, "enable", NULL);
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73 lm_message_node_set_attribute(enable, "xmlns", NS_CARBONS_2);
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74 handler = lm_message_handler_new(cb_carbons, NULL, NULL);
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75
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76 if (!lm_connection_send_with_reply(lconnection, iq, handler, &error)) {
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77 scr_log_print(LPRINT_DEBUG, "Error sending IQ request: %s.",
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78 error->message);
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79 g_error_free(error);
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80 }
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81
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82 lm_message_handler_unref(handler);
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83 lm_message_unref(iq);
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84 }
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85
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86 // Mark carbons as disabled (e.g. when a connection terminates)
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87 void carbons_reset()
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88 {
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89 _carbons_enabled = 0;
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90 }
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91
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92 void carbons_disable()
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93 {
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94 LmMessage *iq;
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95 LmMessageNode *disable;
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96 LmMessageHandler *handler;
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97 GError *error = NULL;
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98
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99 //We cannot disable carbons if there is no carbon support on the server
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100 if (_carbons_available == 0) {
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101 scr_log_print(LPRINT_NORMAL, "Carbons not available on this server!");
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102 return;
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103 }
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104
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105 //We can only disable carbons if they are disabled
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106 if (_carbons_enabled == 0) {
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107 return;
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108 }
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109
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110 iq = lm_message_new_with_sub_type(NULL, LM_MESSAGE_TYPE_IQ,
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111 LM_MESSAGE_SUB_TYPE_SET);
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112
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113 disable = lm_message_node_add_child(iq->node, "disable", NULL);
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114 lm_message_node_set_attribute(disable, "xmlns", NS_CARBONS_2);
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115 handler = lm_message_handler_new(cb_carbons, NULL, NULL);
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116
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117 if (!lm_connection_send_with_reply(lconnection, iq, handler, &error)) {
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118 scr_log_print(LPRINT_DEBUG, "Error sending IQ request: %s.",
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119 error->message);
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120 g_error_free(error);
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121 }
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122
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123 lm_message_handler_unref(handler);
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124 lm_message_unref(iq);
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125
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126 }
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127
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128 void carbons_info()
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129 {
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130 if (_carbons_enabled) {
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131 scr_log_print(LPRINT_NORMAL, "Carbons enabled.");
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132 } else {
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133 if (_carbons_available) {
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134 scr_log_print(LPRINT_NORMAL, "Carbons available, but not enabled.");
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135 } else {
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136 scr_log_print(LPRINT_NORMAL, "Carbons not available.");
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137 }
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138 }
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139 }
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140
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141 static LmHandlerResult cb_carbons(LmMessageHandler *h, LmConnection *c,
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142 LmMessage *m, gpointer user_data)
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143 {
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144 if (lm_message_get_sub_type(m) == LM_MESSAGE_SUB_TYPE_RESULT) {
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145 _carbons_enabled = (_carbons_enabled == 0 ? 1 : 0);
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146 if (_carbons_enabled) {
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147 scr_log_print(LPRINT_NORMAL, "Carbons enabled.");
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148 } else {
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149 scr_log_print(LPRINT_NORMAL, "Carbons disabled.");
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150 }
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151 } else {
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152 //Handle error cases
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153 }
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154
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155 return LM_HANDLER_RESULT_REMOVE_MESSAGE;
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156 }
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157
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158 /* vim: set et cindent cinoptions=>2\:2(0 ts=2 sw=2: For Vim users... */