--- a/libpurple/protocols/bonjour/dns_sd.c Wed Jun 06 00:17:06 2007 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,387 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Library General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -#include <string.h> - -#include "dns_sd.h" -#include "bonjour.h" -#include "buddy.h" -#include "debug.h" - -/* Private functions */ - -static sw_result HOWL_API -_publish_reply(sw_discovery discovery, sw_discovery_oid oid, - sw_discovery_publish_status status, sw_opaque extra) -{ - purple_debug_warning("bonjour", "_publish_reply --> Start\n"); - - /* Check the answer from the mDNS daemon */ - switch (status) - { - case SW_DISCOVERY_PUBLISH_STARTED : - purple_debug_info("bonjour", "_publish_reply --> Service started\n"); - break; - case SW_DISCOVERY_PUBLISH_STOPPED : - purple_debug_info("bonjour", "_publish_reply --> Service stopped\n"); - break; - case SW_DISCOVERY_PUBLISH_NAME_COLLISION : - purple_debug_info("bonjour", "_publish_reply --> Name collision\n"); - break; - case SW_DISCOVERY_PUBLISH_INVALID : - purple_debug_info("bonjour", "_publish_reply --> Service invalid\n"); - break; - } - - return SW_OKAY; -} - -static sw_result HOWL_API -_resolve_reply(sw_discovery discovery, sw_discovery_oid oid, - sw_uint32 interface_index, sw_const_string name, - sw_const_string type, sw_const_string domain, - sw_ipv4_address address, sw_port port, - sw_octets text_record, sw_ulong text_record_len, - sw_opaque extra) -{ - BonjourBuddy *buddy; - PurpleAccount *account = (PurpleAccount*)extra; - gchar *txtvers = NULL; - gchar *version = NULL; - gchar *first = NULL; - gchar *phsh = NULL; - gchar *status = NULL; - gchar *email = NULL; - gchar *last = NULL; - gchar *jid = NULL; - gchar *AIM = NULL; - gchar *vc = NULL; - gchar *msg = NULL; - gint address_length = 16; - gchar *ip = NULL; - sw_text_record_iterator iterator; - char key[SW_TEXT_RECORD_MAX_LEN]; - char value[SW_TEXT_RECORD_MAX_LEN]; - sw_uint32 value_length; - - sw_discovery_cancel(discovery, oid); - - /* Get the ip as a string */ - ip = malloc(address_length); - sw_ipv4_address_name(address, ip, address_length); - - /* Obtain the parameters from the text_record */ - if ((text_record_len > 0) && (text_record) && (*text_record != '\0')) - { - sw_text_record_iterator_init(&iterator, text_record, text_record_len); - while (sw_text_record_iterator_next(iterator, key, (sw_octet *)value, &value_length) == SW_OKAY) - { - /* Compare the keys with the possible ones and save them on */ - /* the appropiate place of the buddy_list */ - if (strcmp(key, "txtvers") == 0) { - txtvers = g_strdup(value); - } else if (strcmp(key, "version") == 0) { - version = g_strdup(value); - } else if (strcmp(key, "1st") == 0) { - first = g_strdup(value); - } else if (strcmp(key, "status") == 0) { - status = g_strdup(value); - } else if (strcmp(key, "email") == 0) { - email = g_strdup(value); - } else if (strcmp(key, "last") == 0) { - last = g_strdup(value); - } else if (strcmp(key, "jid") == 0) { - jid = g_strdup(value); - } else if (strcmp(key, "AIM") == 0) { - AIM = g_strdup(value); - } else if (strcmp(key, "vc") == 0) { - vc = g_strdup(value); - } else if (strcmp(key, "phsh") == 0) { - phsh = g_strdup(value); - } else if (strcmp(key, "msg") == 0) { - msg = g_strdup(value); - } - } - } - - /* Put the parameters of the text_record in a buddy and add the buddy to */ - /* the buddy list */ - buddy = bonjour_buddy_new(name, first, port, phsh, - status, email, last, jid, AIM, vc, ip, msg); - - if (bonjour_buddy_check(buddy) == FALSE) - { - bonjour_buddy_delete(buddy); - return SW_DISCOVERY_E_UNKNOWN; - } - - /* Add or update the buddy in our buddy list */ - bonjour_buddy_add_to_purple(account, buddy); - - /* Free all the temporal strings */ - g_free(txtvers); - g_free(version); - g_free(first); - g_free(last); - g_free(status); - g_free(email); - g_free(jid); - g_free(AIM); - g_free(vc); - g_free(phsh); - g_free(msg); - - return SW_OKAY; -} - -static sw_result HOWL_API -_browser_reply(sw_discovery discovery, sw_discovery_oid oid, - sw_discovery_browse_status status, - sw_uint32 interface_index, sw_const_string name, - sw_const_string type, sw_const_string domain, - sw_opaque_t extra) -{ - sw_discovery_resolve_id rid; - PurpleAccount *account = (PurpleAccount*)extra; - PurpleBuddy *gb = NULL; - - switch (status) - { - case SW_DISCOVERY_BROWSE_INVALID: - purple_debug_warning("bonjour", "_browser_reply --> Invalid\n"); - break; - case SW_DISCOVERY_BROWSE_RELEASE: - purple_debug_warning("bonjour", "_browser_reply --> Release\n"); - break; - case SW_DISCOVERY_BROWSE_ADD_DOMAIN: - purple_debug_warning("bonjour", "_browser_reply --> Add domain\n"); - break; - case SW_DISCOVERY_BROWSE_ADD_DEFAULT_DOMAIN: - purple_debug_warning("bonjour", "_browser_reply --> Add default domain\n"); - break; - case SW_DISCOVERY_BROWSE_REMOVE_DOMAIN: - purple_debug_warning("bonjour", "_browser_reply --> Remove domain\n"); - break; - case SW_DISCOVERY_BROWSE_ADD_SERVICE: - /* A new peer has joined the network and uses iChat bonjour */ - purple_debug_info("bonjour", "_browser_reply --> Add service\n"); - if (g_ascii_strcasecmp(name, account->username) != 0) - { - if (sw_discovery_resolve(discovery, interface_index, name, type, - domain, _resolve_reply, extra, &rid) != SW_OKAY) - { - purple_debug_warning("bonjour", "_browser_reply --> Cannot send resolve\n"); - } - } - break; - case SW_DISCOVERY_BROWSE_REMOVE_SERVICE: - purple_debug_info("bonjour", "_browser_reply --> Remove service\n"); - gb = purple_find_buddy((PurpleAccount*)extra, name); - if (gb != NULL) - { - bonjour_buddy_delete(gb->proto_data); - purple_blist_remove_buddy(gb); - } - break; - case SW_DISCOVERY_BROWSE_RESOLVED: - purple_debug_info("bonjour", "_browse_reply --> Resolved\n"); - break; - default: - break; - } - - return SW_OKAY; -} - -static int -_dns_sd_publish(BonjourDnsSd *data, PublishType type) -{ - sw_text_record dns_data; - sw_result publish_result = SW_OKAY; - char portstring[6]; - - /* Fill the data for the service */ - if (sw_text_record_init(&dns_data) != SW_OKAY) - { - purple_debug_error("bonjour", "Unable to initialize the data for the mDNS.\n"); - return -1; - } - - /* Convert the port to a string */ - snprintf(portstring, sizeof(portstring), "%d", data->port_p2pj); - - /* Publish standard records */ - sw_text_record_add_key_and_string_value(dns_data, "txtvers", data->txtvers); - sw_text_record_add_key_and_string_value(dns_data, "version", data->version); - sw_text_record_add_key_and_string_value(dns_data, "1st", data->first); - sw_text_record_add_key_and_string_value(dns_data, "last", data->last); - sw_text_record_add_key_and_string_value(dns_data, "port.p2pj", portstring); - sw_text_record_add_key_and_string_value(dns_data, "phsh", data->phsh); - sw_text_record_add_key_and_string_value(dns_data, "status", data->status); - sw_text_record_add_key_and_string_value(dns_data, "vc", data->vc); - - /* Publish extra records */ - if ((data->email != NULL) && (*data->email != '\0')) - sw_text_record_add_key_and_string_value(dns_data, "email", data->email); - - if ((data->jid != NULL) && (*data->jid != '\0')) - sw_text_record_add_key_and_string_value(dns_data, "jid", data->jid); - - if ((data->AIM != NULL) && (*data->AIM != '\0')) - sw_text_record_add_key_and_string_value(dns_data, "AIM", data->AIM); - - if ((data->msg != NULL) && (*data->msg != '\0')) - sw_text_record_add_key_and_string_value(dns_data, "msg", data->msg); - - /* Publish the service */ - switch (type) - { - case PUBLISH_START: - publish_result = sw_discovery_publish(data->session, 0, data->name, ICHAT_SERVICE, NULL, - NULL, data->port_p2pj, sw_text_record_bytes(dns_data), sw_text_record_len(dns_data), - _publish_reply, NULL, &data->session_id); - break; - case PUBLISH_UPDATE: - publish_result = sw_discovery_publish_update(data->session, data->session_id, - sw_text_record_bytes(dns_data), sw_text_record_len(dns_data)); - break; - } - if (publish_result != SW_OKAY) - { - purple_debug_error("bonjour", "Unable to publish or change the status of the _presence._tcp service.\n"); - return -1; - } - - /* Free the memory used by temp data */ - sw_text_record_fina(dns_data); - - return 0; -} - -static void -_dns_sd_handle_packets(gpointer data, gint source, PurpleInputCondition condition) -{ - sw_discovery_read_socket((sw_discovery)data); -} - -/* End private functions */ - -/** - * Allocate space for the dns-sd data. - */ -BonjourDnsSd * -bonjour_dns_sd_new() -{ - BonjourDnsSd *data = g_new0(BonjourDnsSd, 1); - - return data; -} - -/** - * Deallocate the space of the dns-sd data. - */ -void -bonjour_dns_sd_free(BonjourDnsSd *data) -{ - g_free(data->first); - g_free(data->last); - g_free(data->email); - g_free(data); -} - -/** - * Send a new dns-sd packet updating our status. - */ -void -bonjour_dns_sd_send_status(BonjourDnsSd *data, const char *status, const char *status_message) -{ - g_free(data->status); - g_free(data->msg); - - data->status = g_strdup(status); - data->msg = g_strdup(status_message); - - /* Update our text record with the new status */ - _dns_sd_publish(data, PUBLISH_UPDATE); /* <--We must control the errors */ -} - -/** - * Advertise our presence within the dns-sd daemon and start browsing - * for other bonjour peers. - */ -gboolean -bonjour_dns_sd_start(BonjourDnsSd *data) -{ - PurpleAccount *account; - PurpleConnection *gc; - gint dns_sd_socket; - sw_discovery_oid session_id; - - account = data->account; - gc = purple_account_get_connection(account); - - /* Initialize the dns-sd data and session */ - if (sw_discovery_init(&data->session) != SW_OKAY) - { - purple_debug_error("bonjour", "Unable to initialize an mDNS session.\n"); - - /* In Avahi, sw_discovery_init frees data->session but doesn't clear it */ - data->session = NULL; - - return FALSE; - } - - /* Publish our bonjour IM client at the mDNS daemon */ - _dns_sd_publish(data, PUBLISH_START); /* <--We must control the errors */ - - /* Advise the daemon that we are waiting for connections */ - if (sw_discovery_browse(data->session, 0, ICHAT_SERVICE, NULL, _browser_reply, - data->account, &session_id) != SW_OKAY) - { - purple_debug_error("bonjour", "Unable to get service."); - return FALSE; - } - - /* Get the socket that communicates with the mDNS daemon and bind it to a */ - /* callback that will handle the dns_sd packets */ - dns_sd_socket = sw_discovery_socket(data->session); - gc->inpa = purple_input_add(dns_sd_socket, PURPLE_INPUT_READ, - _dns_sd_handle_packets, data->session); - - return TRUE; -} - -/** - * Unregister the "_presence._tcp" service at the mDNS daemon. - */ -void -bonjour_dns_sd_stop(BonjourDnsSd *data) -{ - PurpleAccount *account; - PurpleConnection *gc; - - if (data->session == NULL) - return; - - sw_discovery_cancel(data->session, data->session_id); - - account = data->account; - gc = purple_account_get_connection(account); - purple_input_remove(gc->inpa); - - g_free(data->session); - data->session = NULL; -}