add api_hangup_hook

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@7878 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/include/switch_types.h

@@ -102,6 +102,7 @@ SWITCH_BEGIN_EXTERN_C
 #define SWITCH_PATH_SEPARATOR "/"
 #endif
 #define SWITCH_URL_SEPARATOR "://"
+#define SWITCH_API_HANGUP_HOOK_VARIABLE "api_hangup_hook"
 #define SWITCH_PROCESS_CDR_VARIABLE "process_cdr"
 #define SWITCH_BRIDGE_CHANNEL_VARIABLE "bridge_channel"
 #define SWITCH_CHANNEL_NAME_VARIABLE "channel_name"

src/switch_core_state_machine.c

@@ -412,6 +412,7 @@ SWITCH_DECLARE(void) switch_core_session_run(switch_core_session_t *session)
 			case CS_HANGUP:	    /* Deactivate and end the thread */
 				{
 					const char *var = switch_channel_get_variable(session->channel, SWITCH_PROCESS_CDR_VARIABLE);
+					const char *hook_var = switch_channel_get_variable(session->channel, SWITCH_API_HANGUP_HOOK_VARIABLE);
 
 					if (!switch_strlen_zero(var)) {
 						if (!strcasecmp(var, "a_only")) {
@@ -429,6 +430,19 @@ SWITCH_DECLARE(void) switch_core_session_run(switch_core_session_t *session)
 					switch_core_session_signal_lock(session);
 					STATE_MACRO(hangup, "HANGUP");
 					switch_core_session_signal_unlock(session);
+
+					if (!switch_strlen_zero(hook_var)) {
+						switch_stream_handle_t stream = { 0 };
+						char *cmd = switch_core_session_strdup(session, hook_var);
+						char *arg = NULL;
+						if ((arg = strchr(cmd, ' '))) {
+							*arg++ = '\0';
+						}
+						SWITCH_STANDARD_STREAM(stream);
+						switch_api_execute(cmd, arg, session, &stream);
+						switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Hangup Command %s(%s):\n%s\n", cmd, arg, switch_str_nil((char *) stream.data));
+						switch_safe_free(stream.data);
+					}
 				}
 				goto done;
 			case CS_INIT: /* Basic setup tasks */