2 * Copyright (C) 2015, 2016, 2017 IoT.bzh
3 * Author "Fulup Ar Foll"
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
18 #define _GNU_SOURCE /* See feature_test_macros(7) */
23 #include <json-c/json.h>
25 #define AFB_BINDING_VERSION 2
26 #include <afb/afb-binding.h>
29 #include "utils-systemd.h"
33 #include "wgtpkg-install.h"
34 #include "wgtpkg-uninstall.h"
35 #include "wrap-json.h"
37 static const char _added_[] = "added";
38 static const char _a_l_c_[] = "application-list-changed";
39 static const char _detail_[] = "detail";
40 static const char _id_[] = "id";
41 static const char _install_[] = "install";
42 static const char _not_found_[] = "not-found";
43 static const char _once_[] = "once";
44 static const char _pause_[] = "pause";
45 static const char _resume_[] = "resume";
46 static const char _runid_[] = "runid";
47 static const char _runnables_[] = "runnables";
48 static const char _runners_[] = "runners";
49 static const char _start_[] = "start";
50 static const char _state_[] = "state";
51 static const char _terminate_[] = "terminate";
52 static const char _uninstall_[] = "uninstall";
54 static const char *rootdir = FWK_APP_DIR;
55 static struct afb_event applist_changed_event;
56 static struct afm_udb *afudb;
57 static struct json_object *json_true;
59 static void do_reloads()
61 /* enforce daemon reload */
62 systemd_daemon_reload(0);
63 systemd_unit_restart_name(0, "sockets.target");
66 static void bad_request(struct afb_req req)
68 afb_req_fail(req, "bad-request", NULL);
71 static void not_found(struct afb_req req)
73 afb_req_fail(req, _not_found_, NULL);
76 static void cant_start(struct afb_req req)
78 afb_req_fail(req, "cannot-start", NULL);
82 * Broadcast the event "application-list-changed".
83 * This event is sent was the event "changed" is received from dbus.
85 static void application_list_changed(const char *operation, const char *data)
87 struct json_object *e = NULL;
88 wrap_json_pack(&e, "{ss ss}", "operation", operation, "data", data);
89 afb_event_broadcast(applist_changed_event, e);
93 * retrieves the 'appid' in parameters received with the
94 * request 'req' for the 'method'.
96 * Returns 1 in case of success.
97 * Otherwise, if the 'appid' can't be retrieved, an error stating
98 * the bad request is replied for 'req' and 0 is returned.
100 static int onappid(struct afb_req req, const char *method, const char **appid)
102 struct json_object *json;
104 /* get the paramaters of the request */
105 json = afb_req_json(req);
107 /* get the appid if any */
108 if (!wrap_json_unpack(json, "s", appid)
109 || !wrap_json_unpack(json, "{si}", _id_, appid)) {
111 INFO("method %s called for %s", method, *appid);
115 /* nothing appropriate */
116 INFO("bad request method %s: %s", method,
117 json_object_to_json_string(json));
123 * retrieves the 'runid' in parameters received with the
124 * request 'req' for the 'method'.
126 * Returns 1 in case of success.
127 * Otherwise, if the 'runid' can't be retrieved, an error stating
128 * the bad request is replied for 'req' and 0 is returned.
130 static int onrunid(struct afb_req req, const char *method, int *runid)
132 struct json_object *json;
135 /* get the paramaters of the request */
136 json = afb_req_json(req);
138 /* get the runid if any */
139 if (!wrap_json_unpack(json, "i", runid)
140 || !wrap_json_unpack(json, "{si}", _runid_, runid)) {
141 INFO("method %s called for %d", method, *runid);
145 /* get the appid if any */
146 if (!onappid(req, method, &appid))
149 /* search the runid of the appid */
150 *runid = afm_urun_search_runid(afudb, appid, afb_req_get_uid(req));
152 /* nothing appropriate */
153 INFO("method %s can't get runid for %s: %m", method,
160 INFO("method %s called for %s -> %d", method, appid, *runid);
165 * Sends the reply 'resp' to the request 'req' if 'resp' is not NULLzero.
166 * Otherwise, when 'resp' is NULL replies the error string 'errstr'.
168 static void reply(struct afb_req req, struct json_object *resp, const char *errstr)
171 afb_req_fail(req, errstr, NULL);
173 afb_req_success(req, resp, NULL);
177 * Sends the reply "true" to the request 'req' if 'status' is zero.
178 * Otherwise, when 'status' is not zero replies the error string 'errstr'.
180 static void reply_status(struct afb_req req, int status, const char *errstr)
182 reply(req, status ? NULL : json_object_get(json_true), errstr);
186 * On query "runnables"
188 static void runnables(struct afb_req req)
190 struct json_object *resp;
191 INFO("method runnables called");
192 resp = afm_udb_applications_public(afudb, afb_req_get_uid(req));
193 afb_req_success(req, resp, NULL);
199 static void detail(struct afb_req req)
202 struct json_object *resp;
204 /* scan the request */
205 if (!onappid(req, _detail_, &appid))
208 /* wants details for appid */
209 resp = afm_udb_get_application_public(afudb, appid, afb_req_get_uid(req));
211 afb_req_success(req, resp, NULL);
219 static void start(struct afb_req req)
222 struct json_object *appli, *resp;
225 /* scan the request */
226 if (!onappid(req, _start_, &appid))
229 /* get the application */
230 appli = afm_udb_get_application_private(afudb, appid, afb_req_get_uid(req));
236 /* launch the application */
237 runid = afm_urun_start(appli, afb_req_get_uid(req));
246 wrap_json_pack(&resp, "{si}", _runid_, runid);
248 wrap_json_pack(&resp, "i", runid);
250 afb_req_success(req, resp, NULL);
256 static void once(struct afb_req req)
259 struct json_object *appli, *resp;
262 /* scan the request */
263 if (!onappid(req, _once_, &appid))
266 /* get the application */
267 appli = afm_udb_get_application_private(afudb, appid, afb_req_get_uid(req));
273 /* launch the application */
274 runid = afm_urun_once(appli, afb_req_get_uid(req));
280 /* returns the state */
281 resp = afm_urun_state(afudb, runid, afb_req_get_uid(req));
282 afb_req_success(req, resp, NULL);
288 static void pause(struct afb_req req)
291 if (onrunid(req, "pause", &runid)) {
292 status = afm_urun_pause(runid, afb_req_get_uid(req));
293 reply_status(req, status, _not_found_);
298 * On query "resume" from 'smsg' with parameters of 'obj'.
300 static void resume(struct afb_req req)
303 if (onrunid(req, "resume", &runid)) {
304 status = afm_urun_resume(runid, afb_req_get_uid(req));
305 reply_status(req, status, _not_found_);
310 * On query "terminate"
312 static void terminate(struct afb_req req)
315 if (onrunid(req, "terminate", &runid)) {
316 status = afm_urun_terminate(runid, afb_req_get_uid(req));
317 reply_status(req, status, _not_found_);
324 static void runners(struct afb_req req)
326 struct json_object *resp;
327 INFO("method runners called");
328 resp = afm_urun_list(afudb, afb_req_get_uid(req));
329 afb_req_success(req, resp, NULL);
335 static void state(struct afb_req req)
338 struct json_object *resp;
339 if (onrunid(req, "state", &runid)) {
340 resp = afm_urun_state(afudb, runid, afb_req_get_uid(req));
341 reply(req, resp, _not_found_);
345 static void install(struct afb_req req)
351 struct wgt_info *ifo;
352 struct json_object *json;
353 struct json_object *resp;
355 /* default settings */
360 /* scan the request */
361 json = afb_req_json(req);
362 if (wrap_json_unpack(json, "s", &wgtfile)
363 && wrap_json_unpack(json, "{ss s?s s?b s?b}",
367 "reload", &reload)) {
368 return bad_request(req);
371 /* install the widget */
372 ifo = install_widget(wgtfile, root, force);
374 afb_req_fail_f(req, "failed", "installation failed: %m");
376 afm_udb_update(afudb);
377 /* reload if needed */
381 /* build the response */
382 wrap_json_pack(&resp, "{ss}", _added_, wgt_info_desc(ifo)->idaver);
383 afb_req_success(req, resp, NULL);
384 application_list_changed(_install_, wgt_info_desc(ifo)->idaver);
391 static void uninstall(struct afb_req req)
395 struct json_object *json;
398 /* default settings */
401 /* scan the request */
402 json = afb_req_json(req);
403 if (wrap_json_unpack(json, "s", &idaver)
404 && wrap_json_unpack(json, "{ss s?s}",
407 return bad_request(req);
410 /* install the widget */
411 rc = uninstall_widget(idaver, root);
413 afb_req_fail_f(req, "failed", "uninstallation failed: %m");
415 afm_udb_update(afudb);
416 afb_req_success(req, NULL, NULL);
417 application_list_changed(_uninstall_, idaver);
424 afudb = afm_udb_create(1, 0, "afm-appli-");
426 ERROR("afm_udb_create failed");
431 json_true = json_object_new_boolean(1);
433 /* create the event */
434 applist_changed_event = afb_daemon_make_event(_a_l_c_);
435 return -!afb_event_is_valid(applist_changed_event);
438 static const struct afb_auth
440 .type = afb_auth_Permission,
441 .text = "urn:AGL:permission:afm:system:widget:install"
444 .type = afb_auth_Permission,
445 .text = "urn:AGL:permission:afm:system:widget:uninstall"
449 static const struct afb_verb_v2 verbs[] =
451 {_runnables_, runnables, NULL, "Get list of runnable applications", AFB_SESSION_CHECK_V2 },
452 {_detail_ , detail, NULL, "Get the details for one application", AFB_SESSION_CHECK_V2 },
453 {_start_ , start, NULL, "Start an application", AFB_SESSION_CHECK_V2 },
454 {_once_ , once, NULL, "Start once an application", AFB_SESSION_CHECK_V2 },
455 {_terminate_, terminate, NULL, "Terminate a running application", AFB_SESSION_CHECK_V2 },
456 {_pause_ , pause, NULL, "Pause a running application", AFB_SESSION_CHECK_V2 },
457 {_resume_ , resume, NULL, "Resume a paused application", AFB_SESSION_CHECK_V2 },
458 {_runners_ , runners, NULL, "Get the list of running applications", AFB_SESSION_CHECK_V2 },
459 {_state_ , state, NULL, "Get the state of a running application", AFB_SESSION_CHECK_V2 },
460 {_install_ , install, NULL, "Install an application using a widget file", AFB_SESSION_CHECK_V2 },
461 {_uninstall_, uninstall, NULL, "Uninstall an application", AFB_SESSION_CHECK_V2 },
462 { NULL, NULL, NULL, NULL, 0 }
465 const struct afb_binding_v2 afbBindingV2 = {
467 .specification = NULL,
468 .info = "Application Framework Master Service",
473 .noconcurrency = 1 /* relies on binder for serialisation of requests */