ARI: Add support for continuing to a different location in dialplan.

This allows going elsewhere in the dialplan, so that the location can be
specified after exiting the Stasis application.

(closes issue ASTERISK-21870)

Review: https://reviewboard.asterisk.org/r/2644/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@392987 65c4cc65-6c06-0410-ace0-fbb531ad65f3

include/asterisk/stasis_app.h

@@ -142,8 +142,14 @@ const char *stasis_app_control_get_channel_id(
  * If the channel is no longer in \c res_stasis, this function does nothing.
  *
  * \param control Control for \c res_stasis
+ * \param context An optional context to continue to
+ * \param extension An optional extension to continue to
+ * \param priority An optional priority to continue to
+ *
+ * \return 0 for success
+ * \return -1 for error.
  */
-void stasis_app_control_continue(struct stasis_app_control *control);
+int stasis_app_control_continue(struct stasis_app_control *control, const char *context, const char *extension, int priority);
 
 /*!
  * \brief Answer the channel associated with this control.

res/res_stasis_http_channels.c

@@ -191,6 +191,18 @@ static void stasis_http_continue_in_dialplan_cb(
 	struct ast_continue_in_dialplan_args args = {};
 	struct ast_variable *i;
 
+	for (i = get_params; i; i = i->next) {
+		if (strcmp(i->name, "context") == 0) {
+			args.context = (i->value);
+		} else
+		if (strcmp(i->name, "extension") == 0) {
+			args.extension = (i->value);
+		} else
+		if (strcmp(i->name, "priority") == 0) {
+			args.priority = atoi(i->value);
+		} else
+		{}
+	}
 	for (i = path_vars; i; i = i->next) {
 		if (strcmp(i->name, "channelId") == 0) {
 			args.channel_id = (i->value);

res/stasis/control.c

@@ -33,6 +33,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "control.h"
 #include "asterisk/bridging.h"
 #include "asterisk/bridging_features.h"
+#include "asterisk/pbx.h"
 
 struct stasis_app_control {
 	/*! Queue of commands to dispatch on the channel */
@@ -91,17 +92,43 @@ int control_is_done(struct stasis_app_control *control)
 	return control->is_done;
 }
 
+struct stasis_app_control_continue_data {
+	char context[AST_MAX_CONTEXT];
+	char extension[AST_MAX_EXTENSION];
+	int priority;
+};
+
 static void *app_control_continue(struct stasis_app_control *control,
 	struct ast_channel *chan, void *data)
 {
+	RAII_VAR(struct stasis_app_control_continue_data *, continue_data, data, ast_free);
+
 	/* Called from stasis_app_exec thread; no lock needed */
+	ast_explicit_goto(control->channel, continue_data->context, continue_data->extension, continue_data->priority);
+
 	control->is_done = 1;
+
 	return NULL;
 }
 
-void stasis_app_control_continue(struct stasis_app_control *control)
+int stasis_app_control_continue(struct stasis_app_control *control, const char *context, const char *extension, int priority)
 {
-	stasis_app_send_command_async(control, app_control_continue, NULL);
+	struct stasis_app_control_continue_data *continue_data;
+
+	if (!(continue_data = ast_calloc(1, sizeof(*continue_data)))) {
+		return -1;
+	}
+	ast_copy_string(continue_data->context, S_OR(context, ""), sizeof(continue_data->context));
+	ast_copy_string(continue_data->extension, S_OR(extension, ""), sizeof(continue_data->extension));
+	if (priority > 0) {
+		continue_data->priority = priority;
+	} else {
+		continue_data->priority = -1;
+	}
+
+	stasis_app_send_command_async(control, app_control_continue, continue_data);
+
+	return 0;
 }
 
 struct ast_channel_snapshot *stasis_app_control_get_snapshot(

res/stasis_http/resource_channels.c

@@ -97,7 +97,11 @@ void stasis_http_continue_in_dialplan(
 		return;
 	}
 
-	stasis_app_control_continue(control);
+	if (stasis_app_control_continue(control, args->context, args->extension, args->priority)) {
+		stasis_http_response_alloc_failed(response);
+		return;
+	}
+
 	stasis_http_response_no_content(response);
 }
 

res/stasis_http/resource_channels.h

@@ -124,6 +124,12 @@ void stasis_http_dial(struct ast_variable *headers, struct ast_dial_args *args,
 struct ast_continue_in_dialplan_args {
 	/*! \brief Channel's id */
 	const char *channel_id;
+	/*! \brief The context to continue to. */
+	const char *context;
+	/*! \brief The extension to continue to. */
+	const char *extension;
+	/*! \brief The priority to continue to. */
+	int priority;
 };
 /*!
  * \brief Exit application; continue execution in the dialplan.

rest-api/api-docs/channels.json

@@ -207,6 +207,30 @@
 							"required": true,
 							"allowMultiple": false,
 							"dataType": "string"
+						},
+						{
+							"name": "context",
+							"description": "The context to continue to.",
+							"paramType": "query",
+							"required": false,
+							"allowMultiple": false,
+							"dataType": "string"
+						},
+						{
+							"name": "extension",
+							"description": "The extension to continue to.",
+							"paramType": "query",
+							"required": false,
+							"allowMultiple": false,
+							"dataType": "string"
+						},
+						{
+							"name": "priority",
+							"description": "The priority to continue to.",
+							"paramType": "query",
+							"required": false,
+							"allowMultiple": false,
+							"dataType": "int"
 						}
 					],
 					"errorResponses": [