168 lines
3.7 KiB
C
168 lines
3.7 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2005, Joshua Colp
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*
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* Joshua Colp <jcolp@asterlink.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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/*! \file
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*
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* \brief Directed Call Pickup Support
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*
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* \ingroup applications
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include "asterisk/file.h"
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#include "asterisk/logger.h"
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#include "asterisk/channel.h"
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#include "asterisk/pbx.h"
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#include "asterisk/module.h"
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#include "asterisk/lock.h"
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#include "asterisk/app.h"
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static const char *tdesc = "Directed Call Pickup Application";
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static const char *app = "Pickup";
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static const char *synopsis = "Directed Call Pickup";
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static const char *descrip =
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" Pickup(extension[@context]): This application can pickup any ringing channel\n"
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"that is calling the specified extension. If no context is specified, the current\n"
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"context will be used.\n";
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STANDARD_LOCAL_USER;
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LOCAL_USER_DECL;
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static int pickup_exec(struct ast_channel *chan, void *data)
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{
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int res = 0;
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struct localuser *u = NULL;
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struct ast_channel *origin = NULL, *target = NULL;
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char *tmp = NULL, *exten = NULL, *context = NULL;
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char workspace[256] = "";
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if (ast_strlen_zero(data)) {
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ast_log(LOG_WARNING, "Pickup requires an argument (extension) !\n");
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return -1;
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}
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LOCAL_USER_ADD(u);
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/* Get the extension and context if present */
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exten = data;
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context = strchr(data, '@');
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if (context) {
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*context = '\0';
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context++;
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}
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/* Find a channel to pickup */
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origin = ast_get_channel_by_exten_locked(exten, context);
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if (origin) {
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ast_cdr_getvar(origin->cdr, "dstchannel", &tmp, workspace,
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sizeof(workspace), 0);
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if (tmp) {
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/* We have a possible channel... now we need to find it! */
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target = ast_get_channel_by_name_locked(tmp);
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} else {
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ast_log(LOG_DEBUG, "No target channel found.\n");
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res = -1;
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}
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ast_mutex_unlock(&origin->lock);
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} else {
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ast_log(LOG_DEBUG, "No originating channel found.\n");
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}
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if (res)
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goto out;
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if (target && (!target->pbx) && ((target->_state == AST_STATE_RINGING) || (target->_state == AST_STATE_RING))) {
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ast_log(LOG_DEBUG, "Call pickup on chan '%s' by '%s'\n", target->name,
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chan->name);
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res = ast_answer(chan);
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if (res) {
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ast_log(LOG_WARNING, "Unable to answer '%s'\n", chan->name);
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res = -1;
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goto out;
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}
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res = ast_queue_control(chan, AST_CONTROL_ANSWER);
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if (res) {
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ast_log(LOG_WARNING, "Unable to queue answer on '%s'\n",
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chan->name);
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res = -1;
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goto out;
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}
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res = ast_channel_masquerade(target, chan);
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if (res) {
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ast_log(LOG_WARNING, "Unable to masquerade '%s' into '%s'\n", chan->name, target->name);
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res = -1;
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goto out;
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}
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} else {
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ast_log(LOG_DEBUG, "No call pickup possible...\n");
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res = -1;
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}
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/* Done */
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out:
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if (target)
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ast_mutex_unlock(&target->lock);
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LOCAL_USER_REMOVE(u);
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return res;
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}
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int unload_module(void)
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{
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int res;
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res = ast_unregister_application(app);
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STANDARD_HANGUP_LOCALUSERS;
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return res;
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}
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int load_module(void)
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{
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return ast_register_application(app, pickup_exec, synopsis, descrip);
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}
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char *description(void)
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{
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return (char *) tdesc;
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}
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int usecount(void)
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{
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int res;
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STANDARD_USECOUNT(res);
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return res;
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}
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char *key()
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{
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return ASTERISK_GPL_KEY;
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}
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