afm-main-plugin: plugin for afb

Change-Id: I39868b5c1076a995bbb10a984a2a0651579da30b
Signed-off-by: José Bollo <jose.bollo@iot.bzh>

5 files changed, 437 insertions, 44 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ebae7fc..abae909 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -32,8 +32,8 @@ setc(USE_LIBZIP 1)
 setc(USE_SIMULATION 1)
 
 setc(afm_name                "aglfwk")
-setc(afm_confdir             "${CMAKE_INSTALL_FULL_SYSCONFDIR}/${afm_name}")
-setc(afm_datadir             "${CMAKE_INSTALL_FULL_DATADIR}/${afm_name}")
+setc(afm_confdir             "${CMAKE_INSTALL_SYSCONFDIR}/${afm_name}")
+setc(afm_datadir             "${CMAKE_INSTALL_DATADIR}/${afm_name}")
 setc(afm_appdir              "${afm_datadir}/applications")
 setc(afm_icondir             "${afm_datadir}/icons")
 setc(afm_prefix              "urn:agl:")
diff --git a/scripts/CMakeLists.txt b/scripts/CMakeLists.txt
index 74ecec7..34c37cf 100644
--- a/scripts/CMakeLists.txt
+++ b/scripts/CMakeLists.txt
@@ -18,5 +18,5 @@
 
 cmake_minimum_required(VERSION 2.8)
 
-install(PROGRAMS afm-util DESTINATION ${CMAKE_INSTALL_FULL_BINDIR})
+install(PROGRAMS afm-util DESTINATION ${CMAKE_INSTALL_BINDIR})
 
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index f7c9843..22765fb 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -18,29 +18,43 @@
 
 cmake_minimum_required(VERSION 2.8)
 
-include(FindPkgConfig)
+###########################################################################
 
-pkg_check_modules(EXTRAS REQUIRED
-	libxml-2.0
-	openssl
-	xmlsec1 xmlsec1-openssl
-	json-c
-	libsystemd
-	)
+link_libraries(-Wl,--as-needed -Wl,--gc-sections)
+
+add_compile_options(-Wall -Wextra -Wconversion)
+add_compile_options(-Wno-unused-parameter) # frankly not using a parameter does it care?
+add_compile_options(-Werror=maybe-uninitialized)
+add_compile_options(-Werror=implicit-function-declaration)
+add_compile_options(-Wno-pointer-sign) # for XmlChar handling
+add_compile_options(-ffunction-sections -fdata-sections)
+add_compile_options(-Wl,--as-needed -Wl,--gc-sections)
+add_compile_options(-fPIC)
+#add_definitions(-DNDEBUG)
 
+set(CMAKE_C_FLAGS_PROFILING    "-g -O0 -pg -Wp,-U_FORTIFY_SOURCE")
+set(CMAKE_C_FLAGS_DEBUG        "-g -O0 -ggdb -Wp,-U_FORTIFY_SOURCE")
+set(CMAKE_C_FLAGS_RELEASE      "-g -O2")
+set(CMAKE_C_FLAGS_CCOV         "-g -O2 --coverage")
+
+###########################################################################
+
+include(FindPkgConfig)
+
+pkg_check_modules(EXTRAS REQUIRED libxml-2.0 openssl xmlsec1 xmlsec1-openssl json-c libsystemd)
 add_compile_options(${EXTRAS_CFLAGS})
 include_directories(${EXTRAS_INCLUDE_DIRS})
 link_libraries(${EXTRAS_LIBRARIES})
 
-if(USE_LIBZIP)
-	pkg_check_modules(LIBZIP REQUIRED libzip>=0.11)
-	add_compile_options(${LIBZIP_CFLAGS})
-	include_directories(${LIBZIP_INCLUDE_DIRS})
-	link_libraries(${LIBZIP_LIBRARIES})
+pkg_check_modules(libzip libzip>=0.11)
+if(libzip_FOUND)
+	add_compile_options(${libzip_CFLAGS})
+	include_directories(${libzip_INCLUDE_DIRS})
+	link_libraries(${libzip_LIBRARIES})
 	add_definitions(-DUSE_LIBZIP=1)
-else(USE_LIBZIP)
+else()
 	add_definitions(-DUSE_LIBZIP=0)
-endif(USE_LIBZIP)
+endif()
 
 ###########################################################################
 
@@ -55,24 +69,7 @@ endif(USE_SIMULATION)
 
 ###########################################################################
 
-add_compile_options(-Wall -Wextra -Wconversion)
-add_compile_options(-Wno-unused-parameter) # frankly not using a parameter does it care?
-add_compile_options(-Werror=maybe-uninitialized)
-add_compile_options(-Werror=implicit-function-declaration)
-add_compile_options(-Wno-pointer-sign) # for XmlChar handling
-add_compile_options(-ffunction-sections -fdata-sections)
-add_compile_options(-Wl,--gc-sections)
-add_compile_options(-fPIC)
-#add_definitions(-DNDEBUG)
-
-set(CMAKE_C_FLAGS_PROFILING    "-g -O0 -pg -Wp,-U_FORTIFY_SOURCE")
-set(CMAKE_C_FLAGS_DEBUG        "-g -O0 -ggdb -Wp,-U_FORTIFY_SOURCE")
-set(CMAKE_C_FLAGS_RELEASE      "-g -O2")
-set(CMAKE_C_FLAGS_CCOV         "-g -O2 --coverage")
-
-###########################################################################
-
-add_library(wgtpkg
+add_library(wgtpkg STATIC
 	wgtpkg-base64.c
 	wgtpkg-certs.c
 	wgtpkg-digsig.c
@@ -85,30 +82,35 @@ add_library(wgtpkg
 	wgtpkg-zip.c
 	)
 
-add_library(utils
+add_library(utils STATIC
 	utils-dir.c
 	utils-jbus.c
 	utils-json.c
 	verbose.c
 	)
 
-add_library(wgt
+add_library(wgt STATIC
 	wgt-config.c
 	wgt-info.c
 	wgt.c
 	)
 
-add_library(secwrp
+add_library(secwrp STATIC
 	secmgr-wrap.c
 	)
 
-add_library(afm
+add_library(afm STATIC
 	afm-db.c
 	afm-launch.c
 	afm-launch-mode.c
 	afm-run.c
 	)
 
+###########################################################################
+# packaging tools
+
+MESSAGE(STATUS "Creating packaging tools")
+
 add_executable(wgtpkg-sign wgtpkg-sign.c)
 target_link_libraries(wgtpkg-sign wgtpkg utils)
 
@@ -121,13 +123,38 @@ target_link_libraries(wgtpkg-info wgtpkg wgt utils)
 add_executable(wgtpkg-installer wgtpkg-installer.c)
 target_link_libraries(wgtpkg-installer wgtpkg wgt secwrp utils)
 
+install(TARGETS wgtpkg-sign wgtpkg-pack wgtpkg-info wgtpkg-installer DESTINATION ${CMAKE_INSTALL_BINDIR})
+
+###########################################################################
+# the daemons
+
+MESSAGE(STATUS "Creating daemons")
+
 add_executable(afm-user-daemon afm-user-daemon.c)
-target_link_libraries(afm-user-daemon afm secwrp wgt utils)
+target_link_libraries(afm-user-daemon afm secwrp wgt utils )
+install(TARGETS afm-user-daemon DESTINATION ${CMAKE_INSTALL_BINDIR})
 
 add_executable(afm-system-daemon afm-system-daemon.c)
 target_link_libraries(afm-system-daemon wgtpkg afm secwrp wgt utils)
+install(TARGETS afm-system-daemon DESTINATION ${CMAKE_INSTALL_BINDIR})
 
-install(TARGETS wgtpkg-sign wgtpkg-pack wgtpkg-info wgtpkg-installer DESTINATION ${CMAKE_INSTALL_FULL_BINDIR})
-install(TARGETS afm-user-daemon DESTINATION ${CMAKE_INSTALL_FULL_BINDIR})
-install(TARGETS afm-system-daemon DESTINATION ${CMAKE_INSTALL_FULL_BINDIR})
+###########################################################################
+# the plugin for afb
+
+pkg_check_modules(afb afb-daemon)
+if(afb_FOUND)
+	MESSAGE(STATUS "Creation afm-main-plugin for AFB-DAEMON")
+	pkg_get_variable(afb_plugin_install_dir afb-daemon plugin_install_dir)
+	add_library(afm-main-plugin MODULE afm-main-plugin.c)
+	target_compile_options(afm-main-plugin PRIVATE ${afb_CFLAGS})
+	target_include_directories(afm-main-plugin PRIVATE ${afb_INCLUDE_DIRS})
+	target_link_libraries(afm-main-plugin utils ${afb_LIBRARIES})
+	set_target_properties(afm-main-plugin PROPERTIES
+		PREFIX ""
+		LINK_FLAGS "-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/afm-main-plugin.export-map"
+	)
+	INSTALL(TARGETS afm-main-plugin LIBRARY DESTINATION ${afb_plugin_install_dir})
+else()
+	MESSAGE(STATUS "Not creating the plugin for AFB-DAEMON")
+endif()
 
diff --git a/src/afm-main-plugin.c b/src/afm-main-plugin.c
new file mode 100644
index 0000000..786468a
--- /dev/null
+++ b/src/afm-main-plugin.c
@@ -0,0 +1,365 @@
+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Fulup Ar Foll"
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define _GNU_SOURCE         /* See feature_test_macros(7) */
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include <json-c/json.h>
+
+#include <afb/afb-plugin.h>
+
+#include "utils-jbus.h"
+
+static const char _added_[]     = "added";
+static const char _auto_[]      = "auto";
+static const char _continue_[]  = "continue";
+static const char _changed_[]   = "changed";
+static const char _detail_[]    = "detail";
+static const char _id_[]        = "id";
+static const char _install_[]   = "install";
+static const char _local_[]     = "local";
+static const char _mode_[]      = "mode";
+static const char _remote_[]    = "remote";
+static const char _runid_[]     = "runid";
+static const char _runnables_[] = "runnables";
+static const char _runners_[]   = "runners";
+static const char _start_[]     = "start";
+static const char _state_[]     = "state";
+static const char _stop_[]      = "stop";
+static const char _terminate_[] = "terminate";
+static const char _uninstall_[] = "uninstall";
+static const char _uri_[]       = "uri";
+
+static const struct AFB_interface *afb_interface;
+static struct afb_event_sender event_sender;
+
+static struct jbus *jbus;
+
+struct memo
+{
+	struct afb_req request;
+	const char *method;
+};
+
+static struct memo *make_memo(struct afb_req request, const char *method)
+{
+	struct memo *memo = malloc(sizeof *memo);
+	if (memo != NULL) {
+		memo->request = request;
+		memo->method = method;
+		afb_req_addref(request);
+	}
+	return memo;
+}
+
+static void application_list_changed(const char *data, void *closure)
+{
+	afb_event_sender_push(event_sender, "application-list-changed", NULL);
+}
+
+static struct json_object *embed(const char *tag, struct json_object *obj)
+{
+	struct json_object *result;
+
+	if (obj == NULL)
+		result = NULL;
+	else if (!tag)
+		result = obj;
+	else {
+		result = json_object_new_object();
+		if (result == NULL) {
+			/* can't embed */
+			result = obj;
+		}
+		else {
+			/* TODO why is json-c not returning a status? */
+			json_object_object_add(result, tag, obj);
+		}
+	}
+	return result;
+}
+
+static void embed_call_void_callback(int status, struct json_object *obj, struct memo *memo)
+{
+	if (afb_interface->verbosity)
+		fprintf(stderr, "(afm-main-plugin) %s(true) -> %s\n", memo->method,
+			obj ? json_object_to_json_string(obj) : "NULL");
+	if (obj == NULL) {
+		afb_req_fail(memo->request, "failed", "framework daemon failure");
+	} else {
+		obj = json_object_get(obj);
+		obj = embed(memo->method, obj);
+		if (obj == NULL) {
+			afb_req_fail(memo->request, "failed", "framework daemon failure");
+		} else {
+			afb_req_success(memo->request, obj, NULL);
+		}
+	}
+	afb_req_unref(memo->request);
+	free(memo);
+}
+
+static void embed_call_void(struct afb_req request, const char *method)
+{
+	struct memo *memo = make_memo(request, method);
+	if (memo == NULL)
+		afb_req_fail(request, "failed", "out of memory");
+	else if (jbus_call_sj(jbus, method, "true", (void*)embed_call_void_callback, memo) < 0) {
+		afb_req_fail(request, "failed", "dbus failure");
+		free(memo);
+	}
+}
+
+static void call_appid_callback(int status, struct json_object *obj, struct memo *memo)
+{
+	if (afb_interface->verbosity)
+		fprintf(stderr, "(afm-main-plugin) %s -> %s\n", memo->method, 
+			obj ? json_object_to_json_string(obj) : "NULL");
+	if (obj == NULL) {
+		afb_req_fail(memo->request, "failed", "framework daemon failure");
+	} else {
+		obj = json_object_get(obj);
+		afb_req_success(memo->request, obj, NULL);
+	}
+	afb_req_unref(memo->request);
+	free(memo);
+}
+
+static void call_appid(struct afb_req request, const char *method)
+{
+	struct memo *memo;
+	char *sid;
+	const char *id = afb_req_value(request, _id_);
+	if (id == NULL) {
+		afb_req_fail(request, "bad-request", "missing 'id'");
+		return;
+	}
+	memo = make_memo(request, method);
+	if (asprintf(&sid, "\"%s\"", id) <= 0 || memo == NULL) {
+		afb_req_fail(request, "server-error", "out of memory");
+		free(memo);
+		return;
+	}
+	if (jbus_call_sj(jbus, method, sid, (void*)call_appid_callback, memo) < 0) {
+		afb_req_fail(request, "failed", "dbus failure");
+		free(memo);
+	}
+	free(sid);
+}
+
+static void call_runid(struct afb_req request, const char *method)
+{
+	struct json_object *obj;
+	const char *id = afb_req_value(request, _runid_);
+	if (id == NULL) {
+		afb_req_fail(request, "bad-request", "missing 'runid'");
+		return;
+	}
+	obj = jbus_call_sj_sync(jbus, method, id);
+	if (afb_interface->verbosity)
+		fprintf(stderr, "(afm-main-plugin) %s(%s) -> %s\n", method, id,
+				obj ? json_object_to_json_string(obj) : "NULL");
+	if (obj == NULL) {
+		afb_req_fail(request, "failed", "framework daemon failure");
+		return;
+	}
+	obj = json_object_get(obj);
+	afb_req_success(request, obj, NULL);
+}
+
+/************************** entries ******************************/
+
+static void runnables(struct afb_req request)
+{
+	embed_call_void(request, _runnables_);
+}
+
+static void detail(struct afb_req request)
+{
+	call_appid(request, _detail_);
+}
+
+static void start(struct afb_req request)
+{
+	struct json_object *obj;
+	const char *id, *mode;
+	char *query;
+	int rc;
+
+	/* get the id */
+	id = afb_req_value(request, _id_);
+	if (id == NULL) {
+		afb_req_fail(request, "bad-request", "missing 'id'");
+		return;
+	}
+	/* get the mode */
+	mode = afb_req_value(request, _mode_);
+	if (mode == NULL || !strcmp(mode, _auto_)) {
+		mode = afb_interface->mode == AFB_MODE_REMOTE ? _remote_ : _local_;
+	}
+
+	/* create the query */
+	rc = asprintf(&query, "{\"id\":\"%s\",\"mode\":\"%s\"}", id, mode);
+	if (rc < 0) {
+		afb_req_fail(request, "server-error", "out of memory");
+		return;
+	}
+
+	/* calls the service */
+	obj = jbus_call_sj_sync(jbus, _start_, query);
+	if (afb_interface->verbosity)
+		fprintf(stderr, "(afm-main-plugin) start(%s) -> %s\n", query,
+			obj ? json_object_to_json_string(obj) : "NULL");
+	free(query);
+
+	/* check status */
+	obj = json_object_get(obj);
+	if (obj == NULL) {
+		afb_req_fail(request, "failed", "framework daemon failure");
+		return;
+	}
+
+	/* embed if needed */
+	if (json_object_get_type(obj) == json_type_int)
+		obj = embed(_runid_, obj);
+	afb_req_success(request, obj, NULL);
+}
+
+static void terminate(struct afb_req request)
+{
+	call_runid(request, _terminate_);
+}
+
+static void stop(struct afb_req request)
+{
+	call_runid(request, _stop_);
+}
+
+static void continue_(struct afb_req request)
+{
+	call_runid(request, _continue_);
+}
+
+static void runners(struct afb_req request)
+{
+	embed_call_void(request, _runners_);
+}
+
+static void state(struct afb_req request)
+{
+	call_runid(request, _state_);
+}
+
+static void install(struct afb_req request)
+{
+	struct json_object *obj, *added;
+	char *query;
+	const char *filename;
+	struct afb_arg arg;
+
+	/* get the argument */
+	arg = afb_req_get(request, "widget");
+	filename = arg.path;
+	if (filename == NULL) {
+		afb_req_fail(request, "bad-request", "missing 'widget' file");
+		return;
+	}
+
+	/* makes the query */
+	if (0 >= asprintf(&query, "\"%s\"", filename)) {
+		afb_req_fail(request, "server-error", "out of memory");
+		return;
+	}
+
+	obj = jbus_call_sj_sync(jbus, _install_, query);
+	if (afb_interface->verbosity)
+		fprintf(stderr, "(afm-main-plugin) install(%s) -> %s\n", query,
+			obj ? json_object_to_json_string(obj) : "NULL");
+	free(query);
+
+	/* check status */
+	if (obj == NULL) {
+		afb_req_fail(request, "failed", "framework daemon failure");
+		return;
+	}
+
+	/* embed if needed */
+	if (json_object_object_get_ex(obj, _added_, &added))
+		obj = added;
+	obj = json_object_get(obj);
+	obj = embed(_id_, obj);
+	afb_req_success(request, obj, NULL);
+}
+
+static void uninstall(struct afb_req request)
+{
+	call_appid(request, _uninstall_);
+}
+
+static const struct AFB_verb_desc_v1 verbs[] =
+{
+	{_runnables_, AFB_SESSION_CHECK, runnables,  "Get list of runnable applications"},
+	{_detail_   , AFB_SESSION_CHECK, detail, "Get the details for one application"},
+	{_start_    , AFB_SESSION_CHECK, start, "Start an application"},
+	{_terminate_, AFB_SESSION_CHECK, terminate, "Terminate a running application"},
+	{_stop_     , AFB_SESSION_CHECK, stop, "Stop (pause) a running application"},
+	{_continue_ , AFB_SESSION_CHECK, continue_, "Continue (resume) a stopped application"},
+	{_runners_  , AFB_SESSION_CHECK, runners,  "Get the list of running applications"},
+	{_state_    , AFB_SESSION_CHECK, state, "Get the state of a running application"},
+	{_install_  , AFB_SESSION_CHECK, install,  "Install an application using a widget file"},
+	{_uninstall_, AFB_SESSION_CHECK, uninstall, "Uninstall an application"},
+	{ NULL, 0, NULL, NULL }
+};
+
+static const struct AFB_plugin plug_desc = {
+	.type = AFB_PLUGIN_VERSION_1,
+	.v1 = {
+		.info = "Application Framework Master Service",
+		.prefix = "afm-main",
+		.verbs = verbs
+	}
+};
+
+const struct AFB_plugin *pluginAfbV1Register(const struct AFB_interface *itf)
+{
+	int rc;
+	struct sd_bus *sbus;
+
+	/* records the interface */
+	assert (afb_interface == NULL);
+	afb_interface = itf;
+	event_sender = afb_daemon_get_event_sender(itf->daemon);
+
+	/* creates the jbus for accessing afm-user-daemon */
+	sbus = afb_daemon_get_user_bus(itf->daemon);
+	if (sbus == NULL)
+		return NULL;
+	jbus = create_jbus(sbus, "/org/AGL/afm/user");
+        if (jbus == NULL)
+		return NULL;
+
+	/* records the signal handler */
+	rc = jbus_on_signal_s(jbus, _changed_, application_list_changed, NULL);
+	if (rc < 0) {
+		jbus_unref(jbus);
+		return NULL;
+	}
+
+	return &plug_desc;
+}
+
diff --git a/src/afm-main-plugin.export-map b/src/afm-main-plugin.export-map
new file mode 100644
index 0000000..e2da85c
--- /dev/null
+++ b/src/afm-main-plugin.export-map
@@ -0,0 +1 @@
+{ global: pluginAfbV1Register; local: *; };