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1 /* |
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2 * pep_geoloc.c -- Pep geographical location events |
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3 * |
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4 * Copyright (C) 2009-2012 Myhailo Danylenko <isbear@ukrpost.net> |
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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 <glib.h> |
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23 #include <loudmouth/loudmouth.h> |
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24 #include <stdlib.h> // atoi |
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25 #include <string.h> |
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26 #include <time.h> |
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27 |
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28 #include <mcabber/logprint.h> |
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29 #include <mcabber/utils.h> |
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30 #include <mcabber/xmpp.h> |
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31 #include <mcabber/xmpp_helper.h> |
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32 #include <mcabber/hooks.h> |
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33 #include <mcabber/settings.h> |
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34 #include <mcabber/modules.h> |
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35 |
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36 #include "pep.h" |
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37 #include "geoloc.h" |
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38 |
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39 #include "config.h" |
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40 |
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41 // |
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42 // module description |
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43 // |
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44 |
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45 void pep_geoloc_init (void); |
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46 void pep_geoloc_uninit (void); |
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47 |
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48 #define DESCRIPTION ( \ |
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49 "PEP geoloc event handling\n" \ |
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50 "Recognizes option geoloc_interval" ) |
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51 |
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52 static const gchar *deps[] = { "pep", NULL }; |
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53 |
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54 static module_info_t info_geoloc_dev = { |
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55 .branch = "dev", |
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56 .api = 20, |
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57 .version = PROJECT_VERSION, |
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58 .description = DESCRIPTION, |
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59 .requires = deps, |
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60 .init = pep_geoloc_init, |
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61 .uninit = pep_geoloc_uninit, |
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62 .next = NULL, |
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63 }; |
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64 |
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65 module_info_t info_pep_geoloc = { |
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66 .branch = "0.10.1", |
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67 .api = 1, |
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68 .version = PROJECT_VERSION, |
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69 .description = DESCRIPTION, |
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70 .requires = deps, |
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71 .init = pep_geoloc_init, |
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72 .uninit = pep_geoloc_uninit, |
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73 .next = &info_geoloc_dev, |
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74 }; |
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75 |
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76 // |
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77 // globals |
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78 // |
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79 |
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80 #define MAX_NO ( 21 ) |
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81 |
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82 static geoloc_pair_t info[] = { |
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83 { "accuracy", NULL }, |
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84 { "alt", NULL }, |
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85 { "area", NULL }, |
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86 { "bearing", NULL }, |
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87 { "building", NULL }, |
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88 { "country", NULL }, |
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89 { "countrycode", NULL }, |
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90 { "datum", NULL }, |
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91 { "description", NULL }, |
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92 { "error", NULL }, |
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93 { "floor", NULL }, |
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94 { "lat", NULL }, |
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95 { "locality", NULL }, |
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96 { "lon", NULL }, |
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97 { "postalcode", NULL }, |
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98 { "region", NULL }, |
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99 { "room", NULL }, |
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100 { "speed", NULL }, |
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101 { "street", NULL }, |
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102 { "text", NULL }, |
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103 { "timestamp", NULL }, |
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104 { "uri", NULL }, |
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105 { NULL, NULL }, |
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106 }; |
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107 |
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108 static GQuark geoloc_gerror_quark = 0; |
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109 static gboolean publish_delayed = FALSE; |
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110 static guint geoloc_hid_connect = 0; |
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111 static guint geoloc_hid_disconnect = 0; |
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112 static guint geoloc_hid_geolocout = 0; |
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113 static guint geoloc_interval = 0; |
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114 static time_t geoloc_timestamp = 0; |
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115 static LmMessageHandler *geoloc_reply_handler = NULL; |
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116 static guint geoloc_source = 0; |
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117 static gboolean geoloc_guard_installed = FALSE; |
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118 |
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119 // |
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120 // predeclarations |
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121 // |
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122 |
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123 static void geoloc_publish_info (void); |
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124 |
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125 // |
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126 // code |
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127 // |
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128 |
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129 static LmHandlerResult geoloc_publish_reply_handler (LmMessageHandler *handler, LmConnection *connection, LmMessage *message, gpointer userdata) |
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130 { |
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131 switch (lm_message_get_sub_type (message)) { |
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132 case LM_MESSAGE_SUB_TYPE_RESULT: |
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133 break; |
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134 |
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135 case LM_MESSAGE_SUB_TYPE_ERROR: |
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136 |
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137 { |
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138 LmMessageNode *node = lm_message_get_node (message); |
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139 const gchar *type; |
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140 const gchar *reason; |
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141 |
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142 node = lm_message_node_get_child (node, "error"); |
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143 type = lm_message_node_get_attribute (node, "type"); |
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144 if (node->children) |
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145 reason = node->children->name; |
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146 else |
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147 reason = "undefined"; |
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148 |
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149 scr_log_print (LPRINT_LOGNORM, "geoloc: Publish failed: %s - %s.", type, reason); |
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150 } |
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151 |
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152 break; |
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153 |
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154 default: |
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155 return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS; |
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156 break; |
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157 } |
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158 |
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159 return LM_HANDLER_RESULT_REMOVE_MESSAGE; |
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160 } |
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161 |
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162 static gboolean geoloc_delayed_publish_cb (gpointer data) |
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163 { |
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164 geoloc_source = 0; |
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165 geoloc_publish_info (); |
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166 return FALSE; |
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167 } |
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168 |
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169 static void geoloc_publish_info (void) |
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170 { |
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171 if (!xmpp_is_online ()) { |
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172 scr_log_print (LPRINT_DEBUG, "geoloc: Not online, delaying publish."); |
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173 publish_delayed = TRUE; |
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174 return; |
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175 } |
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176 |
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177 // check for frequency of publishes |
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178 if (geoloc_interval) { |
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179 time_t now = time (NULL); |
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180 |
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181 if (now - geoloc_timestamp < geoloc_interval) { |
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182 |
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183 scr_log_print (LPRINT_DEBUG, "geoloc: Publish interval not passed, delaying."); |
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184 if (!geoloc_source) |
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185 geoloc_source = g_timeout_add_seconds ( geoloc_interval - ( now - geoloc_timestamp ), geoloc_delayed_publish_cb, NULL ); |
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186 return; |
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187 |
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188 } else |
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189 geoloc_timestamp = now; |
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190 } |
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191 |
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192 LmMessage *request = lm_message_new_with_sub_type (NULL, LM_MESSAGE_TYPE_IQ, LM_MESSAGE_SUB_TYPE_SET); |
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193 LmMessageNode *node = lm_message_get_node (request); |
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194 lm_message_node_set_attribute (node, "from", lm_connection_get_jid (lconnection)); |
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195 |
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196 node = lm_message_node_add_child (node, "pubsub", NULL); |
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197 lm_message_node_set_attribute (node, "xmlns", NS_PUBSUB); |
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198 |
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199 node = lm_message_node_add_child (node, "publish", NULL); |
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200 lm_message_node_set_attribute (node, "node", NS_GEOLOC); |
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201 |
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202 node = lm_message_node_add_child (node, "item", NULL); |
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203 |
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204 node = lm_message_node_add_child (node, "geoloc", NULL); |
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205 lm_message_node_set_attribute (node, "xmlns", NS_GEOLOC); |
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206 |
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207 { // put data inside |
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208 int i; |
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209 |
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210 for ( i = 0; i <= MAX_NO; ++ i ) |
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211 if ( info[i].value ) |
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212 lm_message_node_add_child ( node, info[i].name, info[i].value ); |
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213 } |
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214 |
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215 { // send |
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216 GError *error = NULL; |
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217 |
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218 lm_connection_send_with_reply (lconnection, request, geoloc_reply_handler, &error); |
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219 |
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220 if (error) { |
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221 scr_log_print (LPRINT_DEBUG, "geoloc: Publishing error: %s.", error -> message); |
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222 g_error_free (error); |
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223 } |
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224 } |
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225 |
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226 lm_message_unref (request); |
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227 //publish_delayed = FALSE; XXX |
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228 } |
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229 |
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230 void geoloc_publish (const geoloc_pair_t *pairs) |
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231 { |
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232 gboolean publish = FALSE; |
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233 const geoloc_pair_t *tag; |
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234 static geoloc_pair_t new_info[] = { |
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235 { "accuracy", NULL }, |
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236 { "alt", NULL }, |
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237 { "area", NULL }, |
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238 { "bearing", NULL }, |
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239 { "building", NULL }, |
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240 { "country", NULL }, |
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241 { "countrycode", NULL }, |
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242 { "datum", NULL }, |
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243 { "description", NULL }, |
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244 { "error", NULL }, |
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245 { "floor", NULL }, |
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246 { "lat", NULL }, |
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247 { "locality", NULL }, |
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248 { "lon", NULL }, |
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249 { "postalcode", NULL }, |
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250 { "region", NULL }, |
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251 { "room", NULL }, |
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252 { "speed", NULL }, |
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253 { "street", NULL }, |
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254 { "text", NULL }, |
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255 { "timestamp", NULL }, |
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256 { "uri", NULL }, |
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257 { NULL, NULL }, |
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258 }; |
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259 |
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260 // populate new_info with new values |
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261 for (tag = pairs; tag->name; ++tag) { |
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262 int i; |
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263 for (i = 0; i <= MAX_NO; ++i) |
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264 if (!g_strcmp0 (tag->name, new_info[i].name)) |
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265 new_info[i].value = tag->value; |
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266 } |
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267 |
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268 { // check, if it differ from info |
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269 int i; |
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270 for (i = 0; i <= MAX_NO; ++i) |
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271 if (g_strcmp0 (new_info[i].value, info[i].value)) { |
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272 publish = TRUE; |
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273 break; |
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274 } |
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275 } |
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276 |
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277 if (publish) { |
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278 |
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279 { // copy new vaules to info |
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280 int i; |
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281 for (i = 0; i <= MAX_NO; ++i) { |
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282 if (info[i].value) |
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283 g_free (info[i].value); |
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284 info[i].value = g_strdup (new_info[i].value); |
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285 } |
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286 } |
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287 |
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288 geoloc_publish_info (); |
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289 } |
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290 } |
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291 |
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292 gboolean geoloc_request ( const gchar *to, GError **err ) |
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293 { |
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294 |
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295 LmMessage *request; |
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296 LmMessageNode *node; |
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297 |
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298 if (!xmpp_is_online ()) { |
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299 g_set_error ( err, geoloc_gerror_quark, GEOLOC_ERROR_NOTCONNECTED, "You are not connected" ); |
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300 return FALSE; |
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301 } |
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302 |
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303 request = lm_message_new_with_sub_type (to, LM_MESSAGE_TYPE_IQ, LM_MESSAGE_SUB_TYPE_GET); |
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304 node = lm_message_get_node (request); |
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305 lm_message_node_set_attribute (node, "from", lm_connection_get_jid (lconnection)); |
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306 |
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307 node = lm_message_node_add_child (node, "pubsub", NULL); |
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308 lm_message_node_set_attribute (node, "xmlns", NS_PUBSUB); |
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309 |
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310 node = lm_message_node_add_child (node, "items", NULL); |
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311 lm_message_node_set_attribute (node, "node", NS_GEOLOC); |
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312 |
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313 { // send, result will be handled by pep |
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314 GError *error = NULL; |
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315 |
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316 lm_connection_send (lconnection, request, &error); |
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317 |
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318 if (error) { |
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319 g_propagate_error ( err, error ); |
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320 return FALSE; |
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321 } |
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322 } |
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323 |
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324 lm_message_unref (request); |
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325 |
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326 return TRUE; |
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327 } |
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328 |
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329 static void geoloc_handler (const gchar *from, const gchar *node, LmMessageNode *n, const gchar *id, gpointer ignore) |
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330 { |
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331 LmMessageNode *tag; |
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332 hk_arg_t args[] = { |
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333 { "accuracy", NULL }, |
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334 { "alt", NULL }, |
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335 { "area", NULL }, |
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336 { "bearing", NULL }, |
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337 { "building", NULL }, |
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338 { "country", NULL }, |
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339 { "countrycode", NULL }, |
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340 { "datum", NULL }, |
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341 { "description", NULL }, |
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342 { "error", NULL }, |
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343 { "floor", NULL }, |
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344 { "lat", NULL }, |
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345 { "locality", NULL }, |
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346 { "lon", NULL }, |
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347 { "postalcode", NULL }, |
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348 { "region", NULL }, |
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349 { "room", NULL }, |
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350 { "speed", NULL }, |
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351 { "street", NULL }, |
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352 { "text", NULL }, |
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353 { "timestamp", NULL }, |
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354 { "uri", NULL }, |
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355 { "from", from }, |
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356 { NULL, NULL }, |
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357 }; |
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358 |
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359 for ( tag = n -> children; tag; tag = tag -> next ) { |
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360 const gchar *name = tag -> name; |
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361 if ( name ) { |
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362 int i; |
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363 for ( i = 0; i <= MAX_NO; ++ i ) |
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364 if ( ! strcmp ( name, args[i].name ) ) { |
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365 const gchar *value = lm_message_node_get_value ( tag ); |
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366 if ( value ) |
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367 args[i].value = value; |
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368 } |
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369 } |
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370 } |
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371 |
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372 hk_run_handlers ( HOOK_GEOLOC_IN, args ); |
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373 } |
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374 |
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375 static guint geoloc_hch (const gchar *hid, hk_arg_t *args, gpointer userdata) |
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376 { |
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377 if (publish_delayed) { |
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378 scr_log_print (LPRINT_DEBUG, "geoloc: Publishing delayed data."); |
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379 |
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380 publish_delayed = FALSE; |
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381 geoloc_publish_info (); |
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382 } |
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383 |
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384 return HOOK_HANDLER_RESULT_ALLOW_MORE_HANDLERS; |
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385 } |
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386 |
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387 static guint geoloc_hdh (const gchar *hid, hk_arg_t *args, gpointer userdata) |
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388 { |
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389 #ifdef HAVE_LM_CONNECTION_UNREGISTER_REPLY_HANDLER |
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390 if (lconnection) |
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391 lm_connection_unregister_reply_handler (lconnection, geoloc_reply_handler); |
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392 #endif |
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393 |
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394 return HOOK_HANDLER_RESULT_ALLOW_MORE_HANDLERS; |
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395 } |
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396 |
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397 static guint geoloc_hgoh ( const gchar *hid, hk_arg_t *args, gpointer userdata ) |
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398 { |
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399 geoloc_publish ( (const geoloc_pair_t *) args ); |
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400 return HOOK_HANDLER_RESULT_ALLOW_MORE_HANDLERS; |
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401 } |
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402 |
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403 static gchar *geoloc_guard (const char *key, const char *new_value) |
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404 { |
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405 if (new_value) |
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406 geoloc_interval = atoi (new_value); |
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407 else |
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408 geoloc_interval = 0; |
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409 |
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410 if (geoloc_source) { |
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411 g_source_remove (geoloc_source); |
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412 geoloc_source = 0; |
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413 // Will reinstall source, if necessary |
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414 geoloc_publish_info (); |
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415 } |
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416 |
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417 return g_strdup (new_value); |
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418 } |
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419 |
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420 void pep_geoloc_init (void) |
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421 { |
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422 geoloc_gerror_quark = g_quark_from_string ( "pep-geoloc-gerror-quark" ); |
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423 |
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424 geoloc_interval = settings_opt_get_int ("geoloc_interval"); |
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425 |
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426 geoloc_guard_installed = settings_set_guard ("geoloc_interval", geoloc_guard); |
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427 if (!geoloc_guard_installed) |
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428 scr_log_print (LPRINT_LOGNORM, "geoloc: Warning: cannot install option guard for 'geoloc_interval'."); |
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429 |
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430 pep_register_xmlns_handler (NS_GEOLOC, geoloc_handler, NULL, NULL); |
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431 |
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432 geoloc_reply_handler = lm_message_handler_new (geoloc_publish_reply_handler, NULL, NULL); |
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433 |
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434 geoloc_hid_connect = hk_add_handler ( geoloc_hch, HOOK_POST_CONNECT, G_PRIORITY_DEFAULT, NULL ); |
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435 geoloc_hid_disconnect = hk_add_handler ( geoloc_hdh, HOOK_PRE_DISCONNECT, G_PRIORITY_DEFAULT, NULL ); |
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436 geoloc_hid_geolocout = hk_add_handler ( geoloc_hgoh, HOOK_GEOLOC_OUT, G_PRIORITY_DEFAULT, NULL ); |
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437 |
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438 xmpp_add_feature ( NS_GEOLOC ); |
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439 xmpp_add_feature ( NS_GEOLOC_NOTIFY ); |
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440 } |
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441 |
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442 void pep_geoloc_uninit (void) |
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443 { |
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444 xmpp_del_feature ( NS_GEOLOC ); |
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445 xmpp_del_feature ( NS_GEOLOC_NOTIFY ); |
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446 |
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447 hk_del_handler ( HOOK_POST_CONNECT, geoloc_hid_connect ); |
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448 hk_del_handler ( HOOK_PRE_DISCONNECT, geoloc_hid_disconnect ); |
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449 hk_del_handler ( HOOK_GEOLOC_OUT, geoloc_hid_geolocout ); |
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450 |
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451 if (geoloc_source) |
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452 g_source_remove (geoloc_source); |
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453 |
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454 pep_unregister_xmlns_handler ( NS_GEOLOC ); |
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455 |
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456 lm_message_handler_invalidate (geoloc_reply_handler); |
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457 lm_message_handler_unref (geoloc_reply_handler); |
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458 #ifdef HAVE_LM_CONNECTION_UNREGISTE_REPLY_HANDLER |
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459 if (lconnection) |
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460 lm_connection_unregister_reply_handler (lconnection, handler); |
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461 #endif |
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462 |
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463 { |
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464 int i; |
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465 for (i = 0; i <= MAX_NO; ++i) |
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466 if (info[i].value) |
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467 g_free (info[i].value); |
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468 } |
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469 |
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470 if (geoloc_guard_installed) |
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471 settings_del_guard ("geoloc_interval"); |
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472 } |
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473 |
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474 /* vim: se ts=4 sw=4: */ |