1 | /***************************************************************************\ |
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2 | * * |
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3 | * BitlBee - An IRC to IM gateway * |
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4 | * Jabber module - IQ packets * |
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5 | * * |
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6 | * Copyright 2006 Wilmer van der Gaast <wilmer@gaast.net> * |
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7 | * * |
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8 | * This program is free software; you can redistribute it and/or modify * |
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9 | * it under the terms of the GNU General Public License as published by * |
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10 | * the Free Software Foundation; either version 2 of the License, or * |
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11 | * (at your option) any later version. * |
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12 | * * |
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13 | * This program is distributed in the hope that it will be useful, * |
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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16 | * GNU General Public License for more details. * |
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17 | * * |
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18 | * You should have received a copy of the GNU General Public License along * |
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19 | * with this program; if not, write to the Free Software Foundation, Inc., * |
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20 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * |
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21 | * * |
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22 | \***************************************************************************/ |
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23 | |
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24 | #include "jabber.h" |
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25 | |
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26 | xt_status jabber_pkt_iq( struct xt_node *node, gpointer data ) |
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27 | { |
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28 | struct gaim_connection *gc = data; |
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29 | struct jabber_data *jd = gc->proto_data; |
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30 | struct xt_node *c, *reply = NULL; |
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31 | char *type, *s; |
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32 | int st, pack = 1; |
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33 | |
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34 | type = xt_find_attr( node, "type" ); |
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35 | |
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36 | if( !type ) |
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37 | { |
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38 | hide_login_progress_error( gc, "Received IQ packet without type." ); |
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39 | signoff( gc ); |
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40 | return XT_ABORT; |
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41 | } |
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42 | |
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43 | if( strcmp( type, "result" ) == 0 || strcmp( type, "error" ) == 0 ) |
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44 | { |
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45 | struct jabber_cache_entry *entry; |
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46 | |
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47 | if( ( s = xt_find_attr( node, "id" ) ) == NULL ) |
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48 | { |
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49 | /* Silently ignore it, without an ID we don't know |
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50 | how to handle the packet, but it doesn't have |
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51 | to be a serious problem. */ |
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52 | return XT_HANDLED; |
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53 | } |
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54 | |
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55 | entry = g_hash_table_lookup( jd->node_cache, s ); |
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56 | |
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57 | if( entry == NULL ) |
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58 | serv_got_crap( gc, "WARNING: Received IQ %s packet with unknown/expired ID %s!", type, s ); |
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59 | else if( entry->func ) |
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60 | return entry->func( gc, node, entry->node ); |
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61 | } |
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62 | else if( strcmp( type, "get" ) == 0 ) |
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63 | { |
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64 | if( !( c = xt_find_node( node->children, "query" ) ) || |
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65 | !( s = xt_find_attr( c, "xmlns" ) ) ) |
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66 | { |
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67 | serv_got_crap( gc, "WARNING: Received incomplete IQ-get packet" ); |
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68 | return XT_HANDLED; |
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69 | } |
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70 | |
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71 | reply = xt_new_node( "query", NULL, NULL ); |
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72 | xt_add_attr( reply, "xmlns", s ); |
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73 | |
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74 | /* Of course this is a very essential query to support. ;-) */ |
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75 | if( strcmp( s, "jabber:iq:version" ) == 0 ) |
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76 | { |
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77 | xt_add_child( reply, xt_new_node( "name", "BitlBee", NULL ) ); |
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78 | xt_add_child( reply, xt_new_node( "version", BITLBEE_VERSION, NULL ) ); |
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79 | xt_add_child( reply, xt_new_node( "os", ARCH, NULL ) ); |
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80 | } |
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81 | else if( strcmp( s, "jabber:iq:time" ) == 0 ) |
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82 | { |
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83 | time_t time_ep; |
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84 | char buf[1024]; |
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85 | |
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86 | buf[sizeof(buf)-1] = 0; |
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87 | time_ep = time( NULL ); |
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88 | |
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89 | strftime( buf, sizeof( buf ) - 1, "%Y%m%dT%H:%M:%S", gmtime( &time_ep ) ); |
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90 | xt_add_child( reply, xt_new_node( "utc", buf, NULL ) ); |
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91 | |
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92 | strftime( buf, sizeof( buf ) - 1, "%Z", localtime( &time_ep ) ); |
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93 | xt_add_child( reply, xt_new_node( "tz", buf, NULL ) ); |
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94 | } |
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95 | else if( strcmp( s, "http://jabber.org/protocol/disco#info" ) == 0 ) |
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96 | { |
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97 | c = xt_new_node( "identity", NULL, NULL ); |
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98 | xt_add_attr( c, "category", "client" ); |
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99 | xt_add_attr( c, "type", "pc" ); |
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100 | xt_add_attr( c, "name", "BitlBee" ); |
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101 | xt_add_child( reply, c ); |
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102 | |
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103 | c = xt_new_node( "feature", NULL, NULL ); |
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104 | xt_add_attr( c, "var", "jabber:iq:version" ); |
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105 | xt_add_child( reply, c ); |
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106 | |
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107 | c = xt_new_node( "feature", NULL, NULL ); |
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108 | xt_add_attr( c, "var", "jabber:iq:time" ); |
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109 | xt_add_child( reply, c ); |
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110 | |
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111 | c = xt_new_node( "feature", NULL, NULL ); |
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112 | xt_add_attr( c, "var", "http://jabber.org/protocol/chatstates" ); |
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113 | xt_add_child( reply, c ); |
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114 | |
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115 | /* Later this can be useful to announce things like |
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116 | MUC support. */ |
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117 | } |
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118 | else |
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119 | { |
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120 | xt_free_node( reply ); |
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121 | reply = jabber_make_error_packet( node, "feature-not-implemented", "cancel" ); |
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122 | pack = 0; |
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123 | } |
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124 | } |
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125 | else if( strcmp( type, "set" ) == 0 ) |
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126 | { |
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127 | xt_free_node( reply ); |
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128 | reply = jabber_make_error_packet( node, "feature-not-implemented", "cancel" ); |
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129 | pack = 0; |
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130 | } |
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131 | |
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132 | /* If we recognized the xmlns and managed to generate a reply, |
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133 | finish and send it. */ |
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134 | if( reply ) |
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135 | { |
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136 | /* Normally we still have to pack it into an iq-result |
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137 | packet, but for errors, for example, we don't. */ |
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138 | if( pack ) |
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139 | { |
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140 | reply = jabber_make_packet( "iq", "result", xt_find_attr( node, "from" ), reply ); |
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141 | if( ( s = xt_find_attr( node, "id" ) ) ) |
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142 | xt_add_attr( reply, "id", s ); |
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143 | } |
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144 | |
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145 | st = jabber_write_packet( gc, reply ); |
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146 | xt_free_node( reply ); |
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147 | if( !st ) |
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148 | return XT_ABORT; |
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149 | } |
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150 | |
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151 | return XT_HANDLED; |
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152 | } |
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153 | |
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154 | static xt_status jabber_do_iq_auth( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ); |
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155 | static xt_status jabber_finish_iq_auth( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ); |
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156 | |
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157 | int jabber_init_iq_auth( struct gaim_connection *gc ) |
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158 | { |
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159 | struct jabber_data *jd = gc->proto_data; |
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160 | struct xt_node *node; |
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161 | int st; |
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162 | |
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163 | node = xt_new_node( "query", NULL, xt_new_node( "username", jd->username, NULL ) ); |
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164 | xt_add_attr( node, "xmlns", "jabber:iq:auth" ); |
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165 | node = jabber_make_packet( "iq", "get", NULL, node ); |
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166 | |
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167 | jabber_cache_add( gc, node, jabber_do_iq_auth ); |
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168 | st = jabber_write_packet( gc, node ); |
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169 | |
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170 | return st; |
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171 | } |
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172 | |
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173 | static xt_status jabber_do_iq_auth( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ) |
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174 | { |
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175 | struct jabber_data *jd = gc->proto_data; |
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176 | struct xt_node *reply, *query; |
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177 | xt_status st; |
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178 | char *s; |
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179 | |
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180 | query = xt_find_node( node->children, "query" ); |
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181 | |
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182 | /* Time to authenticate ourselves! */ |
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183 | reply = xt_new_node( "query", NULL, NULL ); |
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184 | xt_add_attr( reply, "xmlns", "jabber:iq:auth" ); |
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185 | xt_add_child( reply, xt_new_node( "username", jd->username, NULL ) ); |
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186 | xt_add_child( reply, xt_new_node( "resource", set_getstr( &gc->acc->set, "resource" ), NULL ) ); |
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187 | |
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188 | if( xt_find_node( query->children, "digest" ) && ( s = xt_find_attr( jd->xt->root, "id" ) ) ) |
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189 | { |
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190 | /* We can do digest authentication, it seems, and of |
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191 | course we prefer that. */ |
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192 | SHA_CTX sha; |
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193 | char hash_hex[41]; |
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194 | unsigned char hash[20]; |
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195 | int i; |
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196 | |
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197 | shaInit( &sha ); |
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198 | shaUpdate( &sha, (unsigned char*) s, strlen( s ) ); |
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199 | shaUpdate( &sha, (unsigned char*) gc->acc->pass, strlen( gc->acc->pass ) ); |
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200 | shaFinal( &sha, hash ); |
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201 | |
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202 | for( i = 0; i < 20; i ++ ) |
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203 | sprintf( hash_hex + i * 2, "%02x", hash[i] ); |
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204 | |
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205 | xt_add_child( reply, xt_new_node( "digest", hash_hex, NULL ) ); |
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206 | } |
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207 | else if( xt_find_node( query->children, "password" ) ) |
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208 | { |
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209 | /* We'll have to stick with plaintext. Let's hope we're using SSL/TLS... */ |
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210 | xt_add_child( reply, xt_new_node( "password", gc->acc->pass, NULL ) ); |
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211 | } |
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212 | else |
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213 | { |
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214 | xt_free_node( reply ); |
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215 | |
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216 | hide_login_progress( gc, "Can't find suitable authentication method" ); |
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217 | signoff( gc ); |
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218 | return XT_ABORT; |
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219 | } |
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220 | |
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221 | reply = jabber_make_packet( "iq", "set", NULL, reply ); |
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222 | jabber_cache_add( gc, reply, jabber_finish_iq_auth ); |
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223 | st = jabber_write_packet( gc, reply ); |
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224 | |
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225 | return st ? XT_HANDLED : XT_ABORT; |
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226 | } |
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227 | |
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228 | static xt_status jabber_finish_iq_auth( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ) |
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229 | { |
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230 | char *type = xt_find_attr( node, "type" ); |
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231 | struct jabber_data *jd = gc->proto_data; |
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232 | |
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233 | if( strcmp( type, "error" ) == 0 ) |
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234 | { |
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235 | hide_login_progress( gc, "Authentication failure" ); |
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236 | signoff( gc ); |
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237 | return XT_ABORT; |
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238 | } |
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239 | else if( strcmp( type, "result" ) == 0 ) |
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240 | { |
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241 | /* This happens when we just successfully authenticated the |
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242 | old (non-SASL) way. */ |
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243 | jd->flags |= JFLAG_AUTHENTICATED; |
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244 | if( !jabber_get_roster( gc ) ) |
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245 | return XT_ABORT; |
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246 | } |
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247 | |
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248 | return XT_HANDLED; |
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249 | } |
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250 | |
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251 | xt_status jabber_pkt_bind_sess( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ) |
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252 | { |
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253 | struct jabber_data *jd = gc->proto_data; |
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254 | struct xt_node *c; |
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255 | char *s; |
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256 | |
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257 | if( ( c = xt_find_node( node->children, "bind" ) ) ) |
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258 | { |
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259 | c = xt_find_node( c->children, "jid" ); |
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260 | if( c && c->text_len && ( s = strchr( c->text, '/' ) ) && |
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261 | strcmp( s + 1, set_getstr( &gc->acc->set, "resource" ) ) != 0 ) |
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262 | serv_got_crap( gc, "Server changed session resource string to `%s'", s + 1 ); |
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263 | |
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264 | jd->flags &= ~JFLAG_WAIT_BIND; |
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265 | } |
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266 | else |
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267 | { |
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268 | jd->flags &= ~JFLAG_WAIT_SESSION; |
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269 | } |
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270 | |
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271 | if( ( jd->flags & ( JFLAG_WAIT_BIND | JFLAG_WAIT_SESSION ) ) == 0 ) |
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272 | { |
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273 | if( !jabber_get_roster( gc ) ) |
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274 | return XT_ABORT; |
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275 | } |
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276 | |
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277 | return XT_HANDLED; |
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278 | } |
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279 | |
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280 | static xt_status jabber_parse_roster( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ); |
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281 | |
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282 | int jabber_get_roster( struct gaim_connection *gc ) |
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283 | { |
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284 | struct xt_node *node; |
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285 | int st; |
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286 | |
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287 | set_login_progress( gc, 1, "Authenticated, requesting buddy list" ); |
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288 | |
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289 | node = xt_new_node( "query", NULL, NULL ); |
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290 | xt_add_attr( node, "xmlns", "jabber:iq:roster" ); |
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291 | node = jabber_make_packet( "iq", "get", NULL, node ); |
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292 | |
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293 | jabber_cache_add( gc, node, jabber_parse_roster ); |
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294 | st = jabber_write_packet( gc, node ); |
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295 | |
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296 | return st; |
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297 | } |
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298 | |
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299 | static xt_status jabber_parse_roster( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ) |
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300 | { |
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301 | struct xt_node *query, *c; |
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302 | |
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303 | query = xt_find_node( node->children, "query" ); |
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304 | |
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305 | c = query->children; |
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306 | while( ( c = xt_find_node( c, "item" ) ) ) |
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307 | { |
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308 | char *jid = xt_find_attr( c, "jid" ); |
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309 | char *name = xt_find_attr( c, "name" ); |
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310 | char *sub = xt_find_attr( c, "subscription" ); |
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311 | |
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312 | if( jid && sub && ( strcmp( sub, "both" ) == 0 || strcmp( sub, "to" ) == 0 ) ) |
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313 | add_buddy( gc, NULL, jid, name ); |
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314 | |
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315 | c = c->next; |
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316 | } |
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317 | |
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318 | account_online( gc ); |
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319 | |
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320 | return XT_HANDLED; |
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321 | } |
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322 | |
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323 | static xt_status jabber_iq_display_vcard( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ); |
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324 | |
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325 | int jabber_get_vcard( struct gaim_connection *gc, char *bare_jid ) |
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326 | { |
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327 | struct xt_node *node; |
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328 | |
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329 | if( strchr( bare_jid, '/' ) ) |
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330 | return 1; /* This was an error, but return 0 should only be done if the connection died... */ |
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331 | |
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332 | node = xt_new_node( "vCard", NULL, NULL ); |
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333 | xt_add_attr( node, "xmlns", "vcard-temp" ); |
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334 | node = jabber_make_packet( "iq", "get", bare_jid, node ); |
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335 | |
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336 | jabber_cache_add( gc, node, jabber_iq_display_vcard ); |
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337 | return jabber_write_packet( gc, node ); |
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338 | } |
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339 | |
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340 | static xt_status jabber_iq_display_vcard( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ) |
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341 | { |
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342 | struct xt_node *vc, *c, *sc; /* subchild, gc is already in use ;-) */ |
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343 | GString *reply; |
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344 | char *s; |
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345 | |
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346 | if( ( s = xt_find_attr( node, "type" ) ) == NULL || |
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347 | strcmp( s, "result" ) != 0 || |
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348 | ( vc = xt_find_node( node->children, "vCard" ) ) == NULL ) |
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349 | { |
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350 | s = xt_find_attr( orig, "to" ); /* If this returns NULL something's wrong.. */ |
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351 | serv_got_crap( gc, "Could not retrieve vCard of %s", s ? s : "(NULL)" ); |
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352 | return XT_HANDLED; |
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353 | } |
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354 | |
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355 | s = xt_find_attr( orig, "to" ); |
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356 | reply = g_string_new( "vCard information for " ); |
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357 | reply = g_string_append( reply, s ? s : "(NULL)" ); |
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358 | reply = g_string_append( reply, ":\n" ); |
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359 | |
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360 | /* I hate this format, I really do... */ |
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361 | |
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362 | if( ( c = xt_find_node( vc->children, "FN" ) ) && c->text_len ) |
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363 | g_string_append_printf( reply, "Name: %s\n", c->text ); |
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364 | |
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365 | if( ( c = xt_find_node( vc->children, "N" ) ) && c->children ) |
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366 | { |
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367 | reply = g_string_append( reply, "Full name:" ); |
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368 | |
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369 | if( ( sc = xt_find_node( c->children, "PREFIX" ) ) && sc->text_len ) |
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370 | g_string_append_printf( reply, " %s", sc->text ); |
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371 | if( ( sc = xt_find_node( c->children, "GIVEN" ) ) && sc->text_len ) |
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372 | g_string_append_printf( reply, " %s", sc->text ); |
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373 | if( ( sc = xt_find_node( c->children, "MIDDLE" ) ) && sc->text_len ) |
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374 | g_string_append_printf( reply, " %s", sc->text ); |
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375 | if( ( sc = xt_find_node( c->children, "FAMILY" ) ) && sc->text_len ) |
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376 | g_string_append_printf( reply, " %s", sc->text ); |
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377 | if( ( sc = xt_find_node( c->children, "SUFFIX" ) ) && sc->text_len ) |
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378 | g_string_append_printf( reply, " %s", sc->text ); |
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379 | |
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380 | reply = g_string_append_c( reply, '\n' ); |
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381 | } |
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382 | |
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383 | if( ( c = xt_find_node( vc->children, "NICKNAME" ) ) && c->text_len ) |
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384 | g_string_append_printf( reply, "Nickname: %s\n", c->text ); |
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385 | |
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386 | if( ( c = xt_find_node( vc->children, "BDAY" ) ) && c->text_len ) |
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387 | g_string_append_printf( reply, "Date of birth: %s\n", c->text ); |
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388 | |
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389 | /* Slightly alternative use of for... ;-) */ |
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390 | for( c = vc->children; ( c = xt_find_node( c, "EMAIL" ) ); c = c->next ) |
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391 | { |
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392 | if( ( sc = xt_find_node( c->children, "USERID" ) ) == NULL || sc->text_len == 0 ) |
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393 | continue; |
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394 | |
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395 | if( xt_find_node( c->children, "HOME" ) ) |
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396 | s = "Home"; |
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397 | else if( xt_find_node( c->children, "WORK" ) ) |
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398 | s = "Work"; |
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399 | else |
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400 | s = "Misc."; |
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401 | |
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402 | g_string_append_printf( reply, "%s e-mail address: %s\n", s, sc->text ); |
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403 | } |
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404 | |
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405 | if( ( c = xt_find_node( vc->children, "URL" ) ) && c->text_len ) |
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406 | g_string_append_printf( reply, "Homepage: %s\n", c->text ); |
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407 | |
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408 | /* Slightly alternative use of for... ;-) */ |
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409 | for( c = vc->children; ( c = xt_find_node( c, "ADR" ) ); c = c->next ) |
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410 | { |
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411 | if( xt_find_node( c->children, "HOME" ) ) |
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412 | s = "Home"; |
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413 | else if( xt_find_node( c->children, "WORK" ) ) |
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414 | s = "Work"; |
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415 | else |
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416 | s = "Misc."; |
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417 | |
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418 | g_string_append_printf( reply, "%s address: ", s ); |
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419 | |
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420 | if( ( sc = xt_find_node( c->children, "STREET" ) ) && sc->text_len ) |
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421 | g_string_append_printf( reply, "%s ", sc->text ); |
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422 | if( ( sc = xt_find_node( c->children, "EXTADR" ) ) && sc->text_len ) |
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423 | g_string_append_printf( reply, "%s, ", sc->text ); |
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424 | if( ( sc = xt_find_node( c->children, "PCODE" ) ) && sc->text_len ) |
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425 | g_string_append_printf( reply, "%s, ", sc->text ); |
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426 | if( ( sc = xt_find_node( c->children, "LOCALITY" ) ) && sc->text_len ) |
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427 | g_string_append_printf( reply, "%s, ", sc->text ); |
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428 | if( ( sc = xt_find_node( c->children, "REGION" ) ) && sc->text_len ) |
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429 | g_string_append_printf( reply, "%s, ", sc->text ); |
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430 | if( ( sc = xt_find_node( c->children, "CTRY" ) ) && sc->text_len ) |
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431 | g_string_append_printf( reply, "%s", sc->text ); |
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432 | |
---|
433 | if( reply->str[reply->len-2] == ',' ) |
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434 | reply = g_string_truncate( reply, reply->len-2 ); |
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435 | |
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436 | reply = g_string_append_c( reply, '\n' ); |
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437 | } |
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438 | |
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439 | for( c = vc->children; ( c = xt_find_node( c, "TEL" ) ); c = c->next ) |
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440 | { |
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441 | if( ( sc = xt_find_node( c->children, "NUMBER" ) ) == NULL || sc->text_len == 0 ) |
---|
442 | continue; |
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443 | |
---|
444 | if( xt_find_node( c->children, "HOME" ) ) |
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445 | s = "Home"; |
---|
446 | else if( xt_find_node( c->children, "WORK" ) ) |
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447 | s = "Work"; |
---|
448 | else |
---|
449 | s = "Misc."; |
---|
450 | |
---|
451 | g_string_append_printf( reply, "%s phone number: %s\n", s, sc->text ); |
---|
452 | } |
---|
453 | |
---|
454 | if( ( c = xt_find_node( vc->children, "DESC" ) ) && c->text_len ) |
---|
455 | g_string_append_printf( reply, "Other information:\n%s", c->text ); |
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456 | |
---|
457 | /* *sigh* */ |
---|
458 | |
---|
459 | serv_got_crap( gc, reply->str ); |
---|
460 | g_string_free( reply, TRUE ); |
---|
461 | |
---|
462 | return XT_HANDLED; |
---|
463 | } |
---|
464 | |
---|
465 | int jabber_add_to_roster( struct gaim_connection *gc, char *handle, char *name ) |
---|
466 | { |
---|
467 | struct xt_node *node; |
---|
468 | int st; |
---|
469 | |
---|
470 | /* Build the item entry */ |
---|
471 | node = xt_new_node( "item", NULL, NULL ); |
---|
472 | xt_add_attr( node, "jid", handle ); |
---|
473 | if( name ) |
---|
474 | xt_add_attr( node, "name", name ); |
---|
475 | |
---|
476 | /* And pack it into a roster-add packet */ |
---|
477 | node = xt_new_node( "query", NULL, node ); |
---|
478 | xt_add_attr( node, "xmlns", "jabber:iq:roster" ); |
---|
479 | node = jabber_make_packet( "iq", "set", NULL, node ); |
---|
480 | |
---|
481 | st = jabber_write_packet( gc, node ); |
---|
482 | |
---|
483 | xt_free_node( node ); |
---|
484 | return st; |
---|
485 | } |
---|
486 | |
---|
487 | int jabber_remove_from_roster( struct gaim_connection *gc, char *handle ) |
---|
488 | { |
---|
489 | struct xt_node *node; |
---|
490 | int st; |
---|
491 | |
---|
492 | /* Build the item entry */ |
---|
493 | node = xt_new_node( "item", NULL, NULL ); |
---|
494 | xt_add_attr( node, "jid", handle ); |
---|
495 | xt_add_attr( node, "subscription", "remove" ); |
---|
496 | |
---|
497 | /* And pack it into a roster-add packet */ |
---|
498 | node = xt_new_node( "query", NULL, node ); |
---|
499 | xt_add_attr( node, "xmlns", "jabber:iq:roster" ); |
---|
500 | node = jabber_make_packet( "iq", "set", NULL, node ); |
---|
501 | |
---|
502 | st = jabber_write_packet( gc, node ); |
---|
503 | |
---|
504 | xt_free_node( node ); |
---|
505 | return st; |
---|
506 | } |
---|