7a46309d3d
This option was added to control whether to notify dialog-info state 'early' or 'confirmed' on Ringing when already INUSE. The value "yes" is useful for some SIP phones (Cisco SPA) to be able to indicate and pick up ringing devices. ASTERISK-26919 #close Change-Id: Ie050bc30023543c7dfb4365c5be3ce58c738c711
139 lines
3.9 KiB
C
139 lines
3.9 KiB
C
/*
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* asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2014, Digium, Inc.
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*
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* Mark Michelson <mmichelson@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*** MODULEINFO
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<depend>pjproject</depend>
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<depend>res_pjsip</depend>
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<depend>res_pjsip_pubsub</depend>
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<support_level>core</support_level>
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***/
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#include "asterisk.h"
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#include <pjsip.h>
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#include <pjsip_simple.h>
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#include <pjlib.h>
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#include "asterisk/module.h"
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#include "asterisk/res_pjsip.h"
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#include "asterisk/res_pjsip_pubsub.h"
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#include "asterisk/res_pjsip_presence_xml.h"
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#include "asterisk/res_pjsip_body_generator_types.h"
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static void *pidf_allocate_body(void *data)
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{
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struct ast_sip_exten_state_data *state_data = data;
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char *local = ast_strdupa(state_data->local);
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pjpidf_pres *pres;
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pj_str_t entity;
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pres = pjpidf_create(state_data->pool, pj_cstr(&entity, ast_strip_quoted(local, "<", ">")));
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return pres;
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}
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static int pidf_generate_body_content(void *body, void *data)
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{
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pjpidf_tuple *tuple;
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pj_str_t note, id, contact, priority;
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char *statestring = NULL, *pidfstate = NULL, *pidfnote = NULL;
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enum ast_sip_pidf_state local_state;
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char sanitized[PJSIP_MAX_URL_SIZE];
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pjpidf_pres *pres = body;
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struct ast_sip_exten_state_data *state_data = data;
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ast_sip_presence_exten_state_to_str(state_data->exten_state, &statestring,
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&pidfstate, &pidfnote, &local_state, 0);
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if (!pjpidf_pres_add_note(state_data->pool, pres, pj_cstr(¬e, pidfnote))) {
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ast_log(LOG_WARNING, "Unable to add note to PIDF presence\n");
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return -1;
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}
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if (!(tuple = pjpidf_pres_add_tuple(state_data->pool, pres,
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pj_cstr(&id, state_data->exten)))) {
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ast_log(LOG_WARNING, "Unable to create PIDF tuple\n");
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return -1;
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}
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ast_sip_sanitize_xml(state_data->remote, sanitized, sizeof(sanitized));
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pjpidf_tuple_set_contact(state_data->pool, tuple, pj_cstr(&contact, sanitized));
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pjpidf_tuple_set_contact_prio(state_data->pool, tuple, pj_cstr(&priority, "1"));
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pjpidf_status_set_basic_open(pjpidf_tuple_get_status(tuple),
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local_state == NOTIFY_OPEN);
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return 0;
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}
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#define MAX_STRING_GROWTHS 5
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static void pidf_to_string(void *body, struct ast_str **str)
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{
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pjpidf_pres *pres = body;
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int growths = 0;
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int size;
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do {
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size = pjpidf_print(pres, ast_str_buffer(*str), ast_str_size(*str) - 1);
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if (size <= AST_PJSIP_XML_PROLOG_LEN) {
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ast_str_make_space(str, ast_str_size(*str) * 2);
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++growths;
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}
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} while (size <= AST_PJSIP_XML_PROLOG_LEN && growths < MAX_STRING_GROWTHS);
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if (size <= AST_PJSIP_XML_PROLOG_LEN) {
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ast_log(LOG_WARNING, "PIDF body text too large\n");
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return;
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}
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*(ast_str_buffer(*str) + size) = '\0';
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ast_str_update(*str);
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}
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static struct ast_sip_pubsub_body_generator pidf_body_generator = {
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.type = "application",
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.subtype = "pidf+xml",
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.body_type = AST_SIP_EXTEN_STATE_DATA,
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.allocate_body = pidf_allocate_body,
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.generate_body_content = pidf_generate_body_content,
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.to_string = pidf_to_string,
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/* No need for a destroy_body callback since we use a pool */
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};
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static int load_module(void)
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{
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CHECK_PJSIP_PUBSUB_MODULE_LOADED();
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if (ast_sip_pubsub_register_body_generator(&pidf_body_generator)) {
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return AST_MODULE_LOAD_DECLINE;
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}
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return AST_MODULE_LOAD_SUCCESS;
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}
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static int unload_module(void)
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{
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ast_sip_pubsub_unregister_body_generator(&pidf_body_generator);
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return 0;
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}
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AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "PJSIP Extension State PIDF Provider",
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.support_level = AST_MODULE_SUPPORT_CORE,
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.load = load_module,
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.unload = unload_module,
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.load_pri = AST_MODPRI_CHANNEL_DEPEND,
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);
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