Bug 6508 - Redirect arbitrary channel to another extension from the dialplan

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@14915 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_managerredirect.c

+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 1999 - 2005, Digium, Inc.
+ *
+ * Mark Spencer <markster@digium.com>
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+/*! \file
+ *
+ * \brief ManagerRedirect application
+ *
+ * \author Sergey Basmanov <sergey_basmanov@mail.ru>
+ * 
+ * \ingroup applications
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+#include "asterisk.h"
+
+ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
+
+#include "asterisk/file.h"
+#include "asterisk/logger.h"
+#include "asterisk/channel.h"
+#include "asterisk/pbx.h"
+#include "asterisk/module.h"
+#include "asterisk/lock.h"
+#include "asterisk/app.h"
+#include "asterisk/features.h"
+
+static char *tdesc = "Manager Redirect";
+static char *app = "ManagerRedirect";
+static char *synopsis = "Redirects another channel in dialplan.";
+static char *descrip = 
+"ManagerRedirect(channel|[[context|]extension|]priority):\n"
+"  Sends the specified channel to the specified extension priority\n";
+
+STANDARD_LOCAL_USER;
+
+LOCAL_USER_DECL;
+
+static int asyncgoto_exec(struct ast_channel *chan, void *data)
+{
+	int res = 0;
+	struct localuser *u;
+	char *info, *context, *exten, *priority;
+	int prio = 1;
+	struct ast_channel *chan2 = NULL;
+
+	AST_DECLARE_APP_ARGS(args,
+		AST_APP_ARG(channel);
+		AST_APP_ARG(label);
+	);
+
+	if (ast_strlen_zero(data)) {
+		ast_log(LOG_WARNING, "%s requires an argument (channel|[[context|]exten|]priority)\n", app);
+		return -1;
+	}
+
+	LOCAL_USER_ADD(u);
+
+	info = ast_strdupa(data);
+	AST_STANDARD_APP_ARGS(args, info);
+
+	if (ast_strlen_zero(args.channel) || ast_strlen_zero(args.label)) {
+		ast_log(LOG_WARNING, "%s requires an argument (channel|[[context|]exten|]priority)\n", app);
+		LOCAL_USER_REMOVE(u);
+		return -1;
+	}
+
+	chan2 = ast_get_channel_by_name_locked(args.channel);
+	if (!chan2) {
+		ast_log(LOG_WARNING, "No such channel: %s\n", args.channel);
+		LOCAL_USER_REMOVE(u);
+		return -1;
+	}
+
+	/* Parsed right to left, so standard parsing won't work */
+	context = strsep(&args.label, "|");
+	exten = strsep(&args.label, "|");
+	if (exten) {
+		priority = strsep(&args.label, "|");
+		if (!priority) {
+			priority = exten;
+			exten = context;
+			context = NULL;
+		}
+	} else {
+		priority = context;
+		context = NULL;
+	}
+
+	if (!(prio = ast_findlabel_extension(chan2, context ? context : chan2->context, exten ? exten : chan2->exten, priority, chan2->cid.cid_num))) {
+		ast_log(LOG_WARNING, "'%s' is not a known priority or label\n", priority);
+		ast_mutex_unlock(&chan2->lock);
+		LOCAL_USER_REMOVE(u);
+		return -1;
+	}
+
+	ast_log(LOG_DEBUG, "Attempting async goto (%s) to %s\n", args.channel, args.label);
+
+	if (ast_async_goto_if_exists(chan2, context ? context : chan2->context, exten ? exten : chan2->exten, prio)) {
+		ast_log(LOG_WARNING, "ManagerRedirect failed for %s\n", args.channel);
+	}
+
+	ast_mutex_unlock(&chan2->lock);
+	LOCAL_USER_REMOVE(u);
+
+	return res;
+}
+
+int unload_module(void)
+{
+	int res;
+
+	res = ast_unregister_application(app);
+
+	STANDARD_HANGUP_LOCALUSERS;
+
+	return res;	
+}
+
+int load_module(void)
+{
+	return ast_register_application(app, asyncgoto_exec, synopsis, descrip);
+}
+
+char *description(void)
+{
+	return tdesc;
+}
+
+int usecount(void)
+{
+	int res;
+
+	STANDARD_USECOUNT(res);
+
+	return res;
+}
+
+char *key()
+{
+	return ASTERISK_GPL_KEY;
+}