CHANGES: Update changes log to include r403414 entry
[asterisk/asterisk.git] / apps / app_channelredirect.c
1 /*
2  * Asterisk -- An open source telephony toolkit.
3  *
4  * Copyright (C) 2006, Sergey Basmanov
5  *
6  * See http://www.asterisk.org for more information about
7  * the Asterisk project. Please do not directly contact
8  * any of the maintainers of this project for assistance;
9  * the project provides a web site, mailing lists and IRC
10  * channels for your use.
11  *
12  * This program is free software, distributed under the terms of
13  * the GNU General Public License Version 2. See the LICENSE file
14  * at the top of the source tree.
15  */
16
17 /*! \file
18  *
19  * \brief ChannelRedirect application
20  *
21  * \author Sergey Basmanov <sergey_basmanov@mail.ru>
22  *
23  * \ingroup applications
24  */
25
26 /*** MODULEINFO
27         <support_level>core</support_level>
28  ***/
29
30 #include "asterisk.h"
31
32 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
33
34 #include "asterisk/file.h"
35 #include "asterisk/channel.h"
36 #include "asterisk/pbx.h"
37 #include "asterisk/module.h"
38 #include "asterisk/lock.h"
39 #include "asterisk/app.h"
40 #include "asterisk/features.h"
41
42 /*** DOCUMENTATION
43         <application name="ChannelRedirect" language="en_US">
44                 <synopsis>
45                         Redirects given channel to a dialplan target
46                 </synopsis>
47                 <syntax>
48                         <parameter name="channel" required="true" />
49                         <parameter name="context" required="false" />
50                         <parameter name="extension" required="false" />
51                         <parameter name="priority" required="true" />
52                 </syntax>
53                 <description>
54                         <para>Sends the specified channel to the specified extension priority</para>
55
56                         <para>This application sets the following channel variables upon completion</para>
57                         <variablelist>
58                                 <variable name="CHANNELREDIRECT_STATUS">
59                                         <value name="NOCHANNEL" />
60                                         <value name="SUCCESS" />
61                                         <para>Are set to the result of the redirection</para>
62                                 </variable>
63                         </variablelist>
64                 </description>
65         </application>
66  ***/
67 static const char app[] = "ChannelRedirect";
68
69 static int asyncgoto_exec(struct ast_channel *chan, const char *data)
70 {
71         int res = -1;
72         char *info;
73         struct ast_channel *chan2 = NULL;
74
75         AST_DECLARE_APP_ARGS(args,
76                 AST_APP_ARG(channel);
77                 AST_APP_ARG(label);
78         );
79
80         if (ast_strlen_zero(data)) {
81                 ast_log(LOG_WARNING, "%s requires an argument (channel,[[context,]exten,]priority)\n", app);
82                 return -1;
83         }
84
85         info = ast_strdupa(data);
86         AST_STANDARD_APP_ARGS(args, info);
87
88         if (ast_strlen_zero(args.channel) || ast_strlen_zero(args.label)) {
89                 ast_log(LOG_WARNING, "%s requires an argument (channel,[[context,]exten,]priority)\n", app);
90                 return -1;
91         }
92
93         if (!(chan2 = ast_channel_get_by_name(args.channel))) {
94                 ast_log(LOG_WARNING, "No such channel: %s\n", args.channel);
95                 pbx_builtin_setvar_helper(chan, "CHANNELREDIRECT_STATUS", "NOCHANNEL");
96                 return 0;
97         }
98
99         res = ast_async_parseable_goto(chan2, args.label);
100
101         chan2 = ast_channel_unref(chan2);
102
103         pbx_builtin_setvar_helper(chan, "CHANNELREDIRECT_STATUS", "SUCCESS");
104
105         return res;
106 }
107
108 static int unload_module(void)
109 {
110         return ast_unregister_application(app);
111 }
112
113 static int load_module(void)
114 {
115         return ast_register_application_xml(app, asyncgoto_exec) ?
116                 AST_MODULE_LOAD_DECLINE : AST_MODULE_LOAD_SUCCESS;
117 }
118
119 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Redirects a given channel to a dialplan target");