![tilghman](/assets/img/avatar_default.png)
allow the deprecated syntax (fixed for jmls on -dev). git-svn-id: http://svn.digium.com/svn/asterisk/trunk@120904 f38db490-d61c-443f-a65b-d21fe96a405b
247 lines
6.8 KiB
C
247 lines
6.8 KiB
C
/*
|
|
* Asterisk -- An open source telephony toolkit.
|
|
*
|
|
* Copyright (c) 2004 - 2005, Tilghman Lesher. All rights reserved.
|
|
* Portions copyright (c) 2006, Philipp Dunkel.
|
|
*
|
|
* Tilghman Lesher <app_exec__v002@the-tilghman.com>
|
|
*
|
|
* This code is released by the author with no restrictions on usage.
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
/*! \file
|
|
*
|
|
* \brief Exec application
|
|
*
|
|
* \author Tilghman Lesher <app_exec__v002@the-tilghman.com>
|
|
* \author Philipp Dunkel <philipp.dunkel@ebox.at>
|
|
*
|
|
* \ingroup applications
|
|
*/
|
|
|
|
#include "asterisk.h"
|
|
|
|
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
|
|
|
|
#include "asterisk/file.h"
|
|
#include "asterisk/channel.h"
|
|
#include "asterisk/pbx.h"
|
|
#include "asterisk/module.h"
|
|
#include "asterisk/app.h"
|
|
|
|
/* Maximum length of any variable */
|
|
#define MAXRESULT 1024
|
|
|
|
/*! Note
|
|
*
|
|
* The key difference between these two apps is exit status. In a
|
|
* nutshell, Exec tries to be transparent as possible, behaving
|
|
* in exactly the same way as if the application it calls was
|
|
* directly invoked from the dialplan.
|
|
*
|
|
* TryExec, on the other hand, provides a way to execute applications
|
|
* and catch any possible fatal error without actually fatally
|
|
* affecting the dialplan.
|
|
*/
|
|
|
|
static char *app_exec = "Exec";
|
|
static char *exec_synopsis = "Executes dialplan application";
|
|
static char *exec_descrip =
|
|
" Exec(appname(arguments)):\n"
|
|
"Allows an arbitrary application to be invoked even when not\n"
|
|
"hardcoded into the dialplan. If the underlying application\n"
|
|
"terminates the dialplan, or if the application cannot be found,\n"
|
|
"Exec will terminate the dialplan.\n"
|
|
" To invoke external applications, see the application System.\n"
|
|
" If you would like to catch any error instead, see TryExec.\n";
|
|
|
|
static char *app_tryexec = "TryExec";
|
|
static char *tryexec_synopsis = "Executes dialplan application, always returning";
|
|
static char *tryexec_descrip =
|
|
" TryExec(appname(arguments)):\n"
|
|
"Allows an arbitrary application to be invoked even when not\n"
|
|
"hardcoded into the dialplan. To invoke external applications\n"
|
|
"see the application System. Always returns to the dialplan.\n"
|
|
"The channel variable TRYSTATUS will be set to one of:\n"
|
|
" SUCCESS if the application returned zero\n"
|
|
" FAILED if the application returned non-zero\n"
|
|
" NOAPP if the application was not found or was not specified\n";
|
|
|
|
static char *app_execif = "ExecIf";
|
|
static char *execif_synopsis = "Executes dialplan application, conditionally";
|
|
static char *execif_descrip =
|
|
" ExecIF (<expr>?<appiftrue>(<args>)[:<appiffalse>(<args>)])\n"
|
|
"If <expr> is true, execute and return the result of <appiftrue>(<args>).\n"
|
|
"If <expr> is true, but <appiftrue> is not found, then the application\n"
|
|
"will return a non-zero value.\n";
|
|
|
|
static int exec_exec(struct ast_channel *chan, void *data)
|
|
{
|
|
int res = 0;
|
|
char *s, *appname, *endargs, args[MAXRESULT];
|
|
struct ast_app *app;
|
|
|
|
if (ast_strlen_zero(data))
|
|
return 0;
|
|
|
|
s = ast_strdupa(data);
|
|
args[0] = 0;
|
|
appname = strsep(&s, "(");
|
|
if (s) {
|
|
endargs = strrchr(s, ')');
|
|
if (endargs)
|
|
*endargs = '\0';
|
|
pbx_substitute_variables_helper(chan, s, args, MAXRESULT - 1);
|
|
}
|
|
if (appname) {
|
|
app = pbx_findapp(appname);
|
|
if (app) {
|
|
res = pbx_exec(chan, app, args);
|
|
} else {
|
|
ast_log(LOG_WARNING, "Could not find application (%s)\n", appname);
|
|
res = -1;
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static int tryexec_exec(struct ast_channel *chan, void *data)
|
|
{
|
|
int res = 0;
|
|
char *s, *appname, *endargs, args[MAXRESULT];
|
|
struct ast_app *app;
|
|
|
|
if (ast_strlen_zero(data))
|
|
return 0;
|
|
|
|
s = ast_strdupa(data);
|
|
args[0] = 0;
|
|
appname = strsep(&s, "(");
|
|
if (s) {
|
|
endargs = strrchr(s, ')');
|
|
if (endargs)
|
|
*endargs = '\0';
|
|
pbx_substitute_variables_helper(chan, s, args, MAXRESULT - 1);
|
|
}
|
|
if (appname) {
|
|
app = pbx_findapp(appname);
|
|
if (app) {
|
|
res = pbx_exec(chan, app, args);
|
|
pbx_builtin_setvar_helper(chan, "TRYSTATUS", res ? "FAILED" : "SUCCESS");
|
|
} else {
|
|
ast_log(LOG_WARNING, "Could not find application (%s)\n", appname);
|
|
pbx_builtin_setvar_helper(chan, "TRYSTATUS", "NOAPP");
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int execif_exec(struct ast_channel *chan, void *data)
|
|
{
|
|
int res = 0;
|
|
char *truedata = NULL, *falsedata = NULL, *end, *firstcomma, *firstquestion;
|
|
struct ast_app *app = NULL;
|
|
AST_DECLARE_APP_ARGS(expr,
|
|
AST_APP_ARG(expr);
|
|
AST_APP_ARG(remainder);
|
|
);
|
|
AST_DECLARE_APP_ARGS(apps,
|
|
AST_APP_ARG(t);
|
|
AST_APP_ARG(f);
|
|
);
|
|
char *parse = ast_strdupa(data);
|
|
|
|
firstcomma = strchr(parse, ',');
|
|
firstquestion = strchr(parse, '?');
|
|
|
|
if ((firstcomma != NULL && firstquestion != NULL && firstcomma < firstquestion) || (firstquestion == NULL)) {
|
|
/* Deprecated syntax */
|
|
AST_DECLARE_APP_ARGS(depr,
|
|
AST_APP_ARG(expr);
|
|
AST_APP_ARG(appname);
|
|
AST_APP_ARG(appargs);
|
|
);
|
|
AST_STANDARD_APP_ARGS(depr, parse);
|
|
|
|
ast_log(LOG_WARNING, "Deprecated syntax found. Please upgrade to using ExecIf(<expr>?%s(%s))\n", depr.appname, depr.appargs);
|
|
|
|
/* Make the two syntaxes look the same */
|
|
expr.expr = depr.expr;
|
|
apps.t = depr.appname;
|
|
apps.f = NULL;
|
|
truedata = depr.appargs;
|
|
} else {
|
|
/* Preferred syntax */
|
|
|
|
AST_NONSTANDARD_APP_ARGS(expr, parse, '?');
|
|
if (ast_strlen_zero(expr.remainder)) {
|
|
ast_log(LOG_ERROR, "Usage: ExecIf(<expr>?<appiftrue>(<args>)[:<appiffalse>(<args)])\n");
|
|
return -1;
|
|
}
|
|
|
|
AST_NONSTANDARD_APP_ARGS(apps, expr.remainder, ':');
|
|
|
|
if (apps.t && (truedata = strchr(apps.t, '('))) {
|
|
*truedata++ = '\0';
|
|
if ((end = strrchr(truedata, ')'))) {
|
|
*end = '\0';
|
|
}
|
|
}
|
|
|
|
if (apps.f && (falsedata = strchr(apps.f, '('))) {
|
|
*falsedata++ = '\0';
|
|
if ((end = strrchr(falsedata, ')'))) {
|
|
*end = '\0';
|
|
}
|
|
}
|
|
}
|
|
|
|
if (pbx_checkcondition(expr.expr)) {
|
|
if (!ast_strlen_zero(apps.t) && (app = pbx_findapp(apps.t))) {
|
|
res = pbx_exec(chan, app, S_OR(truedata, ""));
|
|
} else {
|
|
ast_log(LOG_WARNING, "Could not find application! (%s)\n", apps.t);
|
|
res = -1;
|
|
}
|
|
} else if (!ast_strlen_zero(apps.f)) {
|
|
if ((app = pbx_findapp(apps.f))) {
|
|
res = pbx_exec(chan, app, S_OR(falsedata, ""));
|
|
} else {
|
|
ast_log(LOG_WARNING, "Could not find application! (%s)\n", apps.f);
|
|
res = -1;
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static int unload_module(void)
|
|
{
|
|
int res;
|
|
|
|
res = ast_unregister_application(app_exec);
|
|
res |= ast_unregister_application(app_tryexec);
|
|
res |= ast_unregister_application(app_execif);
|
|
|
|
return res;
|
|
}
|
|
|
|
static int load_module(void)
|
|
{
|
|
int res = ast_register_application(app_exec, exec_exec, exec_synopsis, exec_descrip);
|
|
res |= ast_register_application(app_tryexec, tryexec_exec, tryexec_synopsis, tryexec_descrip);
|
|
res |= ast_register_application(app_execif, execif_exec, execif_synopsis, execif_descrip);
|
|
return res;
|
|
}
|
|
|
|
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Executes dialplan applications");
|