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cli: Add command to evaluate dialplan functions. 

Adds the dialplan eval function commands to evaluate a dialplan
function from the CLI. The return value and function result are
printed out and can be used for testing or debugging.

ASTERISK-29820 #close

Change-Id: I833e97ea54c49336aca145330a2adeebfad05209
This commit is contained in:
Naveen Albert 2021-12-26 21:39:12 +00:00 committed by Friendly Automation
parent 7e18d42479
commit 74e28c1270
2 changed files with 52 additions and 0 deletions
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5
doc/CHANGES-staging/cli_eval_function.txt Normal file
View File

@ -0,0 +1,5 @@
Subject: cli
A new CLI command 'dialplan eval function' has been
added which allows users to test the behavior of
dialplan function calls directly from the CLI.

47
main/pbx_variables.c
View File

@ -924,6 +924,52 @@ static char *handle_show_chanvar(struct ast_cli_entry *e, int cmd, struct ast_cl
return CLI_SUCCESS;
}
/*! \brief CLI support for executing function */
static char *handle_eval_function(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
struct ast_channel *c = NULL;
char *fn, *substituted;
int ret;
char workspace[1024];
switch (cmd) {
case CLI_INIT:
e->command = "dialplan eval function";
e->usage =
"Usage: dialplan eval function <name(args)>\n"
" Evaluate a dialplan function call\n"
" A dummy channel is used to evaluate\n"
" the function call, so only global\n"
" variables should be used.\n";
return NULL;
case CLI_GENERATE:
return NULL;
}
if (a->argc != e->args + 1) {
return CLI_SHOWUSAGE;
}
c = ast_dummy_channel_alloc();
if (!c) {
ast_cli(a->fd, "Unable to allocate bogus channel for function evaluation.\n");
return CLI_FAILURE;
}
fn = (char *) a->argv[3];
pbx_substitute_variables_helper(c, fn, workspace, sizeof(workspace));
substituted = ast_strdupa(workspace);
workspace[0] = '\0';
ret = ast_func_read(c, substituted, workspace, sizeof(workspace));
c = ast_channel_unref(c);
ast_cli(a->fd, "Return Value: %s (%d)\n", ret ? "Failure" : "Success", ret);
ast_cli(a->fd, "Result: %s\n", workspace);
return CLI_SUCCESS;
}
static char *handle_set_global(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
switch (cmd) {
@ -1218,6 +1264,7 @@ void pbx_builtin_clear_globals(void)
static struct ast_cli_entry vars_cli[] = {
AST_CLI_DEFINE(handle_show_globals, "Show global dialplan variables"),
AST_CLI_DEFINE(handle_show_chanvar, "Show channel variables"),
AST_CLI_DEFINE(handle_eval_function, "Evaluate dialplan function"),
AST_CLI_DEFINE(handle_set_global, "Set global dialplan variable"),
AST_CLI_DEFINE(handle_set_chanvar, "Set a channel variable"),
};