comparison: libgaim/protocols/bonjour/dns_sd.c
libgaim/protocols/bonjour/dns_sd.c
- branch
- cpw.khc.msnp14
- changeset 20472
- 6a6d2ef151e6
- parent 13650
- 8c1043337393
- parent 14254
- 77edc7a6191a
equal
deleted
inserted
replaced
| 13912:463b4fa9f067 | 20472:6a6d2ef151e6 |
|---|---|
| 1 /* | |
| 2 * This program is free software; you can redistribute it and/or modify | |
| 3 * it under the terms of the GNU General Public License as published by | |
| 4 * the Free Software Foundation; either version 2 of the License, or | |
| 5 * (at your option) any later version. | |
| 6 * | |
| 7 * This program is distributed in the hope that it will be useful, | |
| 8 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 10 * GNU Library General Public License for more details. | |
| 11 * | |
| 12 * You should have received a copy of the GNU General Public License | |
| 13 * along with this program; if not, write to the Free Software | |
| 14 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 15 */ | |
| 16 | |
| 17 #include <string.h> | |
| 18 | |
| 19 #include "dns_sd.h" | |
| 20 #include "bonjour.h" | |
| 21 #include "buddy.h" | |
| 22 #include "debug.h" | |
| 23 | |
| 24 /* Private functions */ | |
| 25 | |
| 26 static sw_result HOWL_API | |
| 27 _publish_reply(sw_discovery discovery, sw_discovery_oid oid, | |
| 28 sw_discovery_publish_status status, sw_opaque extra) | |
| 29 { | |
| 30 gaim_debug_warning("bonjour", "_publish_reply --> Start\n"); | |
| 31 | |
| 32 /* Check the answer from the mDNS daemon */ | |
| 33 switch (status) | |
| 34 { | |
| 35 case SW_DISCOVERY_PUBLISH_STARTED : | |
| 36 gaim_debug_info("bonjour", "_publish_reply --> Service started\n"); | |
| 37 break; | |
| 38 case SW_DISCOVERY_PUBLISH_STOPPED : | |
| 39 gaim_debug_info("bonjour", "_publish_reply --> Service stopped\n"); | |
| 40 break; | |
| 41 case SW_DISCOVERY_PUBLISH_NAME_COLLISION : | |
| 42 gaim_debug_info("bonjour", "_publish_reply --> Name collision\n"); | |
| 43 break; | |
| 44 case SW_DISCOVERY_PUBLISH_INVALID : | |
| 45 gaim_debug_info("bonjour", "_publish_reply --> Service invalid\n"); | |
| 46 break; | |
| 47 } | |
| 48 | |
| 49 return SW_OKAY; | |
| 50 } | |
| 51 | |
| 52 static sw_result HOWL_API | |
| 53 _resolve_reply(sw_discovery discovery, sw_discovery_oid oid, | |
| 54 sw_uint32 interface_index, sw_const_string name, | |
| 55 sw_const_string type, sw_const_string domain, | |
| 56 sw_ipv4_address address, sw_port port, | |
| 57 sw_octets text_record, sw_ulong text_record_len, | |
| 58 sw_opaque extra) | |
| 59 { | |
| 60 BonjourBuddy *buddy; | |
| 61 GaimAccount *account = (GaimAccount*)extra; | |
| 62 gchar *txtvers = NULL; | |
| 63 gchar *version = NULL; | |
| 64 gchar *first = NULL; | |
| 65 gchar *phsh = NULL; | |
| 66 gchar *status = NULL; | |
| 67 gchar *email = NULL; | |
| 68 gchar *last = NULL; | |
| 69 gchar *jid = NULL; | |
| 70 gchar *AIM = NULL; | |
| 71 gchar *vc = NULL; | |
| 72 gchar *msg = NULL; | |
| 73 gint address_length = 16; | |
| 74 gchar *ip = NULL; | |
| 75 sw_text_record_iterator iterator; | |
| 76 char key[SW_TEXT_RECORD_MAX_LEN]; | |
| 77 char value[SW_TEXT_RECORD_MAX_LEN]; | |
| 78 sw_uint32 value_length; | |
| 79 | |
| 80 sw_discovery_cancel(discovery, oid); | |
| 81 | |
| 82 /* Get the ip as a string */ | |
| 83 ip = malloc(address_length); | |
| 84 sw_ipv4_address_name(address, ip, address_length); | |
| 85 | |
| 86 /* Obtain the parameters from the text_record */ | |
| 87 if ((text_record_len > 0) && (text_record) && (*text_record != '\0')) | |
| 88 { | |
| 89 sw_text_record_iterator_init(&iterator, text_record, text_record_len); | |
| 90 while (sw_text_record_iterator_next(iterator, key, (sw_octet *)value, &value_length) == SW_OKAY) | |
| 91 { | |
| 92 /* Compare the keys with the possible ones and save them on */ | |
| 93 /* the appropiate place of the buddy_list */ | |
| 94 if (strcmp(key, "txtvers") == 0) { | |
| 95 txtvers = g_strdup(value); | |
| 96 } else if (strcmp(key, "version") == 0) { | |
| 97 version = g_strdup(value); | |
| 98 } else if (strcmp(key, "1st") == 0) { | |
| 99 first = g_strdup(value); | |
| 100 } else if (strcmp(key, "status") == 0) { | |
| 101 status = g_strdup(value); | |
| 102 } else if (strcmp(key, "email") == 0) { | |
| 103 email = g_strdup(value); | |
| 104 } else if (strcmp(key, "last") == 0) { | |
| 105 last = g_strdup(value); | |
| 106 } else if (strcmp(key, "jid") == 0) { | |
| 107 jid = g_strdup(value); | |
| 108 } else if (strcmp(key, "AIM") == 0) { | |
| 109 AIM = g_strdup(value); | |
| 110 } else if (strcmp(key, "vc") == 0) { | |
| 111 vc = g_strdup(value); | |
| 112 } else if (strcmp(key, "phsh") == 0) { | |
| 113 phsh = g_strdup(value); | |
| 114 } else if (strcmp(key, "msg") == 0) { | |
| 115 msg = g_strdup(value); | |
| 116 } | |
| 117 } | |
| 118 } | |
| 119 | |
| 120 /* Put the parameters of the text_record in a buddy and add the buddy to */ | |
| 121 /* the buddy list */ | |
| 122 buddy = bonjour_buddy_new(name, first, port, phsh, | |
| 123 status, email, last, jid, AIM, vc, ip, msg); | |
| 124 | |
| 125 if (bonjour_buddy_check(buddy) == FALSE) | |
| 126 { | |
| 127 bonjour_buddy_delete(buddy); | |
| 128 return SW_DISCOVERY_E_UNKNOWN; | |
| 129 } | |
| 130 | |
| 131 /* Add or update the buddy in our buddy list */ | |
| 132 bonjour_buddy_add_to_gaim(account, buddy); | |
| 133 | |
| 134 /* Free all the temporal strings */ | |
| 135 g_free(txtvers); | |
| 136 g_free(version); | |
| 137 g_free(first); | |
| 138 g_free(last); | |
| 139 g_free(status); | |
| 140 g_free(email); | |
| 141 g_free(jid); | |
| 142 g_free(AIM); | |
| 143 g_free(vc); | |
| 144 g_free(phsh); | |
| 145 g_free(msg); | |
| 146 | |
| 147 return SW_OKAY; | |
| 148 } | |
| 149 | |
| 150 static sw_result HOWL_API | |
| 151 _browser_reply(sw_discovery discovery, sw_discovery_oid oid, | |
| 152 sw_discovery_browse_status status, | |
| 153 sw_uint32 interface_index, sw_const_string name, | |
| 154 sw_const_string type, sw_const_string domain, | |
| 155 sw_opaque_t extra) | |
| 156 { | |
| 157 sw_discovery_resolve_id rid; | |
| 158 GaimAccount *account = (GaimAccount*)extra; | |
| 159 GaimBuddy *gb = NULL; | |
| 160 | |
| 161 switch (status) | |
| 162 { | |
| 163 case SW_DISCOVERY_BROWSE_INVALID: | |
| 164 gaim_debug_warning("bonjour", "_browser_reply --> Invalid\n"); | |
| 165 break; | |
| 166 case SW_DISCOVERY_BROWSE_RELEASE: | |
| 167 gaim_debug_warning("bonjour", "_browser_reply --> Release\n"); | |
| 168 break; | |
| 169 case SW_DISCOVERY_BROWSE_ADD_DOMAIN: | |
| 170 gaim_debug_warning("bonjour", "_browser_reply --> Add domain\n"); | |
| 171 break; | |
| 172 case SW_DISCOVERY_BROWSE_ADD_DEFAULT_DOMAIN: | |
| 173 gaim_debug_warning("bonjour", "_browser_reply --> Add default domain\n"); | |
| 174 break; | |
| 175 case SW_DISCOVERY_BROWSE_REMOVE_DOMAIN: | |
| 176 gaim_debug_warning("bonjour", "_browser_reply --> Remove domain\n"); | |
| 177 break; | |
| 178 case SW_DISCOVERY_BROWSE_ADD_SERVICE: | |
| 179 /* A new peer has joined the network and uses iChat bonjour */ | |
| 180 gaim_debug_info("bonjour", "_browser_reply --> Add service\n"); | |
| 181 if (g_ascii_strcasecmp(name, account->username) != 0) | |
| 182 { | |
| 183 if (sw_discovery_resolve(discovery, interface_index, name, type, | |
| 184 domain, _resolve_reply, extra, &rid) != SW_OKAY) | |
| 185 { | |
| 186 gaim_debug_warning("bonjour", "_browser_reply --> Cannot send resolve\n"); | |
| 187 } | |
| 188 } | |
| 189 break; | |
| 190 case SW_DISCOVERY_BROWSE_REMOVE_SERVICE: | |
| 191 gaim_debug_info("bonjour", "_browser_reply --> Remove service\n"); | |
| 192 gb = gaim_find_buddy((GaimAccount*)extra, name); | |
| 193 if (gb != NULL) | |
| 194 { | |
| 195 bonjour_buddy_delete(gb->proto_data); | |
| 196 gaim_blist_remove_buddy(gb); | |
| 197 } | |
| 198 break; | |
| 199 case SW_DISCOVERY_BROWSE_RESOLVED: | |
| 200 gaim_debug_info("bonjour", "_browse_reply --> Resolved\n"); | |
| 201 break; | |
| 202 default: | |
| 203 break; | |
| 204 } | |
| 205 | |
| 206 return SW_OKAY; | |
| 207 } | |
| 208 | |
| 209 static int | |
| 210 _dns_sd_publish(BonjourDnsSd *data, PublishType type) | |
| 211 { | |
| 212 sw_text_record dns_data; | |
| 213 sw_result publish_result = SW_OKAY; | |
| 214 char portstring[6]; | |
| 215 | |
| 216 /* Fill the data for the service */ | |
| 217 if (sw_text_record_init(&dns_data) != SW_OKAY) | |
| 218 { | |
| 219 gaim_debug_error("bonjour", "Unable to initialize the data for the mDNS.\n"); | |
| 220 return -1; | |
| 221 } | |
| 222 | |
| 223 /* Convert the port to a string */ | |
| 224 snprintf(portstring, sizeof(portstring), "%d", data->port_p2pj); | |
| 225 | |
| 226 /* Publish standard records */ | |
| 227 sw_text_record_add_key_and_string_value(dns_data, "txtvers", data->txtvers); | |
| 228 sw_text_record_add_key_and_string_value(dns_data, "version", data->version); | |
| 229 sw_text_record_add_key_and_string_value(dns_data, "1st", data->first); | |
| 230 sw_text_record_add_key_and_string_value(dns_data, "last", data->last); | |
| 231 sw_text_record_add_key_and_string_value(dns_data, "port.p2pj", portstring); | |
| 232 sw_text_record_add_key_and_string_value(dns_data, "phsh", data->phsh); | |
| 233 sw_text_record_add_key_and_string_value(dns_data, "status", data->status); | |
| 234 sw_text_record_add_key_and_string_value(dns_data, "vc", data->vc); | |
| 235 | |
| 236 /* Publish extra records */ | |
| 237 if ((data->email != NULL) && (*data->email != '\0')) | |
| 238 sw_text_record_add_key_and_string_value(dns_data, "email", data->email); | |
| 239 | |
| 240 if ((data->jid != NULL) && (*data->jid != '\0')) | |
| 241 sw_text_record_add_key_and_string_value(dns_data, "jid", data->jid); | |
| 242 | |
| 243 if ((data->AIM != NULL) && (*data->AIM != '\0')) | |
| 244 sw_text_record_add_key_and_string_value(dns_data, "AIM", data->AIM); | |
| 245 | |
| 246 if ((data->msg != NULL) && (*data->msg != '\0')) | |
| 247 sw_text_record_add_key_and_string_value(dns_data, "msg", data->msg); | |
| 248 | |
| 249 /* Publish the service */ | |
| 250 switch (type) | |
| 251 { | |
| 252 case PUBLISH_START: | |
| 253 publish_result = sw_discovery_publish(data->session, 0, data->name, ICHAT_SERVICE, NULL, | |
| 254 NULL, data->port_p2pj, sw_text_record_bytes(dns_data), sw_text_record_len(dns_data), | |
| 255 _publish_reply, NULL, &data->session_id); | |
| 256 break; | |
| 257 case PUBLISH_UPDATE: | |
| 258 publish_result = sw_discovery_publish_update(data->session, data->session_id, | |
| 259 sw_text_record_bytes(dns_data), sw_text_record_len(dns_data)); | |
| 260 break; | |
| 261 } | |
| 262 if (publish_result != SW_OKAY) | |
| 263 { | |
| 264 gaim_debug_error("bonjour", "Unable to publish or change the status of the _presence._tcp service.\n"); | |
| 265 return -1; | |
| 266 } | |
| 267 | |
| 268 /* Free the memory used by temp data */ | |
| 269 sw_text_record_fina(dns_data); | |
| 270 | |
| 271 return 0; | |
| 272 } | |
| 273 | |
| 274 static void | |
| 275 _dns_sd_handle_packets(gpointer data, gint source, GaimInputCondition condition) | |
| 276 { | |
| 277 sw_discovery_read_socket((sw_discovery)data); | |
| 278 } | |
| 279 | |
| 280 /* End private functions */ | |
| 281 | |
| 282 /** | |
| 283 * Allocate space for the dns-sd data. | |
| 284 */ | |
| 285 BonjourDnsSd * | |
| 286 bonjour_dns_sd_new() | |
| 287 { | |
| 288 BonjourDnsSd *data = g_new0(BonjourDnsSd, 1); | |
| 289 | |
| 290 return data; | |
| 291 } | |
| 292 | |
| 293 /** | |
| 294 * Deallocate the space of the dns-sd data. | |
| 295 */ | |
| 296 void | |
| 297 bonjour_dns_sd_free(BonjourDnsSd *data) | |
| 298 { | |
| 299 g_free(data->first); | |
| 300 g_free(data->last); | |
| 301 g_free(data->email); | |
| 302 g_free(data); | |
| 303 } | |
| 304 | |
| 305 /** | |
| 306 * Send a new dns-sd packet updating our status. | |
| 307 */ | |
| 308 void | |
| 309 bonjour_dns_sd_send_status(BonjourDnsSd *data, const char *status, const char *status_message) | |
| 310 { | |
| 311 g_free(data->status); | |
| 312 g_free(data->msg); | |
| 313 | |
| 314 data->status = g_strdup(status); | |
| 315 data->msg = g_strdup(status_message); | |
| 316 | |
| 317 /* Update our text record with the new status */ | |
| 318 _dns_sd_publish(data, PUBLISH_UPDATE); /* <--We must control the errors */ | |
| 319 } | |
| 320 | |
| 321 /** | |
| 322 * Advertise our presence within the dns-sd daemon and start browsing | |
| 323 * for other bonjour peers. | |
| 324 */ | |
| 325 gboolean | |
| 326 bonjour_dns_sd_start(BonjourDnsSd *data) | |
| 327 { | |
| 328 GaimAccount *account; | |
| 329 GaimConnection *gc; | |
| 330 gint dns_sd_socket; | |
| 331 sw_discovery_oid session_id; | |
| 332 | |
| 333 account = data->account; | |
| 334 gc = gaim_account_get_connection(account); | |
| 335 | |
| 336 /* Initialize the dns-sd data and session */ | |
| 337 if (sw_discovery_init(&data->session) != SW_OKAY) | |
| 338 { | |
| 339 gaim_debug_error("bonjour", "Unable to initialize an mDNS session.\n"); | |
| 340 | |
| 341 /* In Avahi, sw_discovery_init frees data->session but doesn't clear it */ | |
| 342 data->session = NULL; | |
| 343 | |
| 344 return FALSE; | |
| 345 } | |
| 346 | |
| 347 /* Publish our bonjour IM client at the mDNS daemon */ | |
| 348 _dns_sd_publish(data, PUBLISH_START); /* <--We must control the errors */ | |
| 349 | |
| 350 /* Advise the daemon that we are waiting for connections */ | |
| 351 if (sw_discovery_browse(data->session, 0, ICHAT_SERVICE, NULL, _browser_reply, | |
| 352 data->account, &session_id) != SW_OKAY) | |
| 353 { | |
| 354 gaim_debug_error("bonjour", "Unable to get service."); | |
| 355 return FALSE; | |
| 356 } | |
| 357 | |
| 358 /* Get the socket that communicates with the mDNS daemon and bind it to a */ | |
| 359 /* callback that will handle the dns_sd packets */ | |
| 360 dns_sd_socket = sw_discovery_socket(data->session); | |
| 361 gc->inpa = gaim_input_add(dns_sd_socket, GAIM_INPUT_READ, | |
| 362 _dns_sd_handle_packets, data->session); | |
| 363 | |
| 364 return TRUE; | |
| 365 } | |
| 366 | |
| 367 /** | |
| 368 * Unregister the "_presence._tcp" service at the mDNS daemon. | |
| 369 */ | |
| 370 void | |
| 371 bonjour_dns_sd_stop(BonjourDnsSd *data) | |
| 372 { | |
| 373 GaimAccount *account; | |
| 374 GaimConnection *gc; | |
| 375 | |
| 376 if (data->session == NULL) | |
| 377 return; | |
| 378 | |
| 379 sw_discovery_cancel(data->session, data->session_id); | |
| 380 | |
| 381 account = data->account; | |
| 382 gc = gaim_account_get_connection(account); | |
| 383 gaim_input_remove(gc->inpa); | |
| 384 | |
| 385 g_free(data->session); | |
| 386 data->session = NULL; | |
| 387 } |
