2007-12-26 18:54:21 +00:00
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/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2007, Digium, Inc.
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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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2007-12-27 09:13:07 +00:00
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* \brief Dialplan group functions check if a dialplan entry exists
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2007-12-26 18:54:21 +00:00
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*
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* \author Gregory Nietsky AKA irroot <gregory@networksentry.co.za>
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* \author Russell Bryant <russell@digium.com>
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*
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* \ingroup functions
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*/
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2011-07-14 20:28:54 +00:00
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/*** MODULEINFO
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<support_level>core</support_level>
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***/
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2007-12-26 18:54:21 +00:00
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#include "asterisk.h"
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git migration: Refactor the ASTERISK_FILE_VERSION macro
Git does not support the ability to replace a token with a version
string during check-in. While it does have support for replacing a
token on clone, this is somewhat sub-optimal: the token is replaced
with the object hash, which is not particularly easy for human
consumption. What's more, in practice, the source file version was often
not terribly useful. Generally, when triaging bugs, the overall version
of Asterisk is far more useful than an individual SVN version of a file. As a
result, this patch removes Asterisk's support for showing source file
versions.
Specifically, it does the following:
* Rename ASTERISK_FILE_VERSION macro to ASTERISK_REGISTER_FILE, and
remove passing the version in with the macro. Other facilities
than 'core show file version' make use of the file names, such as
setting a debug level only on a specific file. As such, the act of
registering source files with the Asterisk core still has use. The
macro rename now reflects the new macro purpose.
* main/asterisk:
- Refactor the file_version structure to reflect that it no longer
tracks a version field.
- Remove the "core show file version" CLI command. Without the file
version, it is no longer useful.
- Remove the ast_file_version_find function. The file version is no
longer tracked.
- Rename ast_register_file_version/ast_unregister_file_version to
ast_register_file/ast_unregister_file, respectively.
* main/manager: Remove value from the Version key of the ModuleCheck
Action. The actual key itself has not been removed, as doing so would
absolutely constitute a backwards incompatible change. However, since
the file version is no longer tracked, there is no need to attempt to
include it in the Version key.
* UPGRADE: Add notes for:
- Modification to the ModuleCheck AMI Action
- Removal of the "core show file version" CLI command
Change-Id: I6cf0ff280e1668bf4957dc21f32a5ff43444a40e
2015-04-12 02:38:22 +00:00
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ASTERISK_REGISTER_FILE()
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2007-12-26 18:54:21 +00:00
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#include "asterisk/module.h"
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#include "asterisk/channel.h"
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#include "asterisk/pbx.h"
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#include "asterisk/app.h"
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2008-11-01 21:10:07 +00:00
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/*** DOCUMENTATION
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<function name="DIALPLAN_EXISTS" language="en_US">
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<synopsis>
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Checks the existence of a dialplan target.
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</synopsis>
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<syntax>
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<parameter name="context" required="true" />
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<parameter name="extension" />
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<parameter name="priority" />
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</syntax>
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<description>
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<para>This function returns <literal>1</literal> if the target exits. Otherwise, it returns <literal>0</literal>.</para>
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</description>
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</function>
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2011-09-09 07:28:42 +00:00
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<function name="VALID_EXTEN" language="en_US">
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<synopsis>
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Determine whether an extension exists or not.
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</synopsis>
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<syntax>
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<parameter name="context">
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<para>Defaults to the current context</para>
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</parameter>
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<parameter name="extension" required="true" />
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<parameter name="priority">
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<para>Priority defaults to <literal>1</literal>.</para>
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</parameter>
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</syntax>
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<description>
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<para>Returns a true value if the indicated <replaceable>context</replaceable>,
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<replaceable>extension</replaceable>, and <replaceable>priority</replaceable> exist.</para>
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<warning><para>This function has been deprecated in favor of the <literal>DIALPLAN_EXISTS()</literal> function</para></warning>
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</description>
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</function>
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2008-11-01 21:10:07 +00:00
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***/
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2011-09-09 07:28:42 +00:00
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static int isexten_function_read(struct ast_channel *chan, const char *cmd, char *data,
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char *buf, size_t len)
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2007-12-26 18:54:21 +00:00
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{
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char *parse;
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AST_DECLARE_APP_ARGS(args,
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AST_APP_ARG(context);
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AST_APP_ARG(exten);
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AST_APP_ARG(priority);
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);
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strcpy(buf, "0");
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if (ast_strlen_zero(data)) {
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ast_log(LOG_ERROR, "DIALPLAN_EXISTS() requires an argument\n");
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return -1;
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}
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parse = ast_strdupa(data);
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AST_STANDARD_APP_ARGS(args, parse);
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if (!ast_strlen_zero(args.priority)) {
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int priority_num;
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2009-08-10 19:20:57 +00:00
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if (sscanf(args.priority, "%30d", &priority_num) == 1 && priority_num > 0) {
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2007-12-26 18:54:21 +00:00
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int res;
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2014-03-27 19:21:44 +00:00
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res = ast_exists_extension(chan, args.context, args.exten, priority_num,
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!chan ? NULL :
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2012-02-29 16:52:47 +00:00
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S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL));
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2007-12-26 18:54:21 +00:00
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if (res)
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strcpy(buf, "1");
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} else {
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int res;
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2010-07-14 15:48:36 +00:00
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res = ast_findlabel_extension(chan, args.context, args.exten, args.priority,
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2014-03-27 19:21:44 +00:00
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!chan ? NULL :
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2012-02-29 16:52:47 +00:00
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S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL));
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2007-12-26 18:54:21 +00:00
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if (res > 0)
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strcpy(buf, "1");
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}
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} else if (!ast_strlen_zero(args.exten)) {
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int res;
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2014-03-27 19:21:44 +00:00
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res = ast_exists_extension(chan, args.context, args.exten, 1,
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!chan ? NULL :
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2012-02-29 16:52:47 +00:00
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S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL));
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2007-12-26 18:54:21 +00:00
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if (res)
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strcpy(buf, "1");
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} else if (!ast_strlen_zero(args.context)) {
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if (ast_context_find(args.context))
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strcpy(buf, "1");
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} else {
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ast_log(LOG_ERROR, "Invalid arguments provided to DIALPLAN_EXISTS\n");
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return -1;
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}
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2011-09-09 07:28:42 +00:00
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return 0;
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}
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static int acf_isexten_exec(struct ast_channel *chan, const char *cmd, char *parse, char *buffer, size_t buflen)
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{
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int priority_int;
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AST_DECLARE_APP_ARGS(args,
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AST_APP_ARG(context);
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AST_APP_ARG(extension);
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AST_APP_ARG(priority);
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);
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2014-03-27 19:21:44 +00:00
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if (!chan) {
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ast_log(LOG_WARNING, "No channel was provided to %s function.\n", cmd);
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return -1;
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}
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2011-09-09 07:28:42 +00:00
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AST_STANDARD_APP_ARGS(args, parse);
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if (ast_strlen_zero(args.context)) {
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2012-02-13 17:27:06 +00:00
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args.context = ast_strdupa(ast_channel_context(chan));
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2011-09-09 07:28:42 +00:00
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}
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if (ast_strlen_zero(args.extension)) {
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ast_log(LOG_WARNING, "Syntax: VALID_EXTEN([<context>],<extension>[,<priority>]) - missing argument <extension>!\n");
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return -1;
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}
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if (ast_strlen_zero(args.priority)) {
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priority_int = 1;
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} else {
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priority_int = atoi(args.priority);
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}
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if (ast_exists_extension(chan, args.context, args.extension, priority_int,
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2012-02-29 16:52:47 +00:00
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S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL))) {
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2011-09-09 07:28:42 +00:00
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ast_copy_string(buffer, "1", buflen);
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} else {
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ast_copy_string(buffer, "0", buflen);
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}
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2007-12-26 18:54:21 +00:00
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return 0;
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}
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static struct ast_custom_function isexten_function = {
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.name = "DIALPLAN_EXISTS",
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.read = isexten_function_read,
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2009-04-29 18:53:01 +00:00
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.read_max = 2,
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2007-12-26 18:54:21 +00:00
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};
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2011-09-09 07:28:42 +00:00
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static struct ast_custom_function acf_isexten = {
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.name = "VALID_EXTEN",
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.read = acf_isexten_exec,
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};
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2007-12-26 18:54:21 +00:00
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static int unload_module(void)
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{
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2011-09-09 07:28:42 +00:00
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int res = ast_custom_function_unregister(&isexten_function);
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res |= ast_custom_function_unregister(&acf_isexten);
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return res;
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2007-12-26 18:54:21 +00:00
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}
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static int load_module(void)
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{
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2011-09-09 07:28:42 +00:00
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int res = ast_custom_function_register(&isexten_function);
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res |= ast_custom_function_register(&acf_isexten);
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return res;
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2007-12-26 18:54:21 +00:00
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}
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Enable macros in 1.8 to find the next highest "h" extension in a context, like in 1.4.
This change restores functionality that was present in 1.4, when AEL macros
were implemented with the Macro dialplan application. Macros are fraught with
functionality issues, because they consume a large portion of the underlying
application stack. This limits the ability of AEL users to call many layers
of subroutines, an issue which Gosub does not have (originally tested to
100,000 levels deep). Therefore, starting in 1.6.0, AEL macros were
implemented with Gosub.
However, there were some implicit behaviors of Macro, which were not replicated
at the same time as with the transition to Gosub, one of which is documented in
the related issue. In particular, the "h" extension is designed to execute not
in the Macro context, but in the topmost calling context. Due to legacy issues
with a misapplied bugfix many years ago, when a macro exited in 1.4, it looks
in all calling contexts, bubbling up from the deepest level until it finds an
"h" extension.
Since AEL hides the complexity of the underlying dialplan logic from the AEL
programmer, it's reasonable to assume that this behavior should not change in
the transition from Asterisk 1.4 LTS to Asterisk 1.8 LTS, lest we break
working AEL configurations in the transition to Asterisk 1.8 LTS. This fix
is the result, which implements a search for the "h" extension in all calling
Gosub contexts.
Fixes ASTERISK-19336
Patch: 20120308__ael_bugfix_for_trunk__2.diff (License #5003) by Tilghman Lesher
(with slight modifications for 1.8)
Tested by: Johan Wilfer
Review: https://reviewboard.asterisk.org/r/1776/
........
Merged revisions 358810 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........
Merged revisions 358811 from http://svn.asterisk.org/svn/asterisk/branches/10
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@358812 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2012-03-13 08:06:20 +00:00
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AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Dialplan Context/Extension/Priority Checking Functions",
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2014-07-25 16:47:17 +00:00
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.support_level = AST_MODULE_SUPPORT_CORE,
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Enable macros in 1.8 to find the next highest "h" extension in a context, like in 1.4.
This change restores functionality that was present in 1.4, when AEL macros
were implemented with the Macro dialplan application. Macros are fraught with
functionality issues, because they consume a large portion of the underlying
application stack. This limits the ability of AEL users to call many layers
of subroutines, an issue which Gosub does not have (originally tested to
100,000 levels deep). Therefore, starting in 1.6.0, AEL macros were
implemented with Gosub.
However, there were some implicit behaviors of Macro, which were not replicated
at the same time as with the transition to Gosub, one of which is documented in
the related issue. In particular, the "h" extension is designed to execute not
in the Macro context, but in the topmost calling context. Due to legacy issues
with a misapplied bugfix many years ago, when a macro exited in 1.4, it looks
in all calling contexts, bubbling up from the deepest level until it finds an
"h" extension.
Since AEL hides the complexity of the underlying dialplan logic from the AEL
programmer, it's reasonable to assume that this behavior should not change in
the transition from Asterisk 1.4 LTS to Asterisk 1.8 LTS, lest we break
working AEL configurations in the transition to Asterisk 1.8 LTS. This fix
is the result, which implements a search for the "h" extension in all calling
Gosub contexts.
Fixes ASTERISK-19336
Patch: 20120308__ael_bugfix_for_trunk__2.diff (License #5003) by Tilghman Lesher
(with slight modifications for 1.8)
Tested by: Johan Wilfer
Review: https://reviewboard.asterisk.org/r/1776/
........
Merged revisions 358810 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........
Merged revisions 358811 from http://svn.asterisk.org/svn/asterisk/branches/10
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@358812 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2012-03-13 08:06:20 +00:00
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.load = load_module,
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.unload = unload_module,
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.load_pri = AST_MODPRI_APP_DEPEND,
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2015-05-06 00:49:04 +00:00
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);
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