Add warning detection and improve
[src/app-framework-binder.git] / plugins / afm-main-plugin / afm-main-plugin.c
1 /*
2  * Copyright (C) 2015 "IoT.bzh"
3  * Author "Fulup Ar Foll"
4  *
5  * This program is free software: you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation, either version 3 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
17  */
18
19 #define _GNU_SOURCE         /* See feature_test_macros(7) */
20 #include <stdio.h>
21
22 #include "local-def.h"
23
24 #include "utils-jbus.h"
25
26 static const char _id_[]    = "id";
27 static const char _runid_[] = "runid";
28 static char _runnables_[]   = "runnables";
29 static char _detail_[]      = "detail";
30 static char _start_[]       = "start";
31 static char _terminate_[]   = "terminate";
32 static char _stop_[]        = "stop";
33 static char _continue_[]    = "continue";
34 static char _runners_[]     = "runners";
35 static char _state_[]       = "state";
36 static char _install_[]     = "install";
37 static char _uninstall_[]   = "uninstall";
38 static const char _mode_[]  = "mode";
39 static const char _local_[] = "local";
40 static const char _remote_[]= "remote";
41 static const char _auto_[]  = "auto";
42 static const char _uri_[]   = "uri";
43
44 static struct jbus *jbus;
45
46 static struct json_object *embed(AFB_request *request, const char *tag, struct json_object *obj)
47 {
48         struct json_object *result;
49
50         if (obj == NULL)
51                 result = NULL;
52         else if (!tag) {
53                 request->errcode = MHD_HTTP_OK;
54                 result = obj;
55         }
56         else {
57                 result = json_object_new_object();
58                 if (result == NULL) {
59                         /* can't embed */
60                         result = obj;
61                         request->errcode = MHD_HTTP_INTERNAL_SERVER_ERROR;
62                 }
63                 else {
64                         /* TODO why is json-c not returning a status? */
65                         json_object_object_add(result, tag, obj);
66                         request->errcode = MHD_HTTP_OK;
67                 }
68         }
69         return result;
70 }
71
72 static struct json_object *call_void(AFB_request *request, AFB_PostItem *item)
73 {
74         struct json_object *obj = jbus_call_sj_sync(jbus, request->api, "true");
75         if (verbose)
76                 fprintf(stderr, "(afm-main-plugin) call_void: true -> %s\n", obj ? json_object_to_json_string(obj) : "NULL");
77         request->errcode = obj ? MHD_HTTP_OK : MHD_HTTP_FAILED_DEPENDENCY;
78         return obj;
79 }
80
81 static struct json_object *call_appid(AFB_request *request, AFB_PostItem *item)
82 {
83         struct json_object *obj;
84         char *sid;
85         const char *id = getQueryValue(request, _id_);
86         if (id == NULL) {
87                 request->errcode = MHD_HTTP_BAD_REQUEST;
88                 return NULL;
89         }
90         if (0 >= asprintf(&sid, "\"%s\"", id)) {
91                 request->errcode = MHD_HTTP_INTERNAL_SERVER_ERROR;
92                 return NULL;
93         }
94         obj = jbus_call_sj_sync(jbus, request->api, sid);
95         if (verbose)
96                 fprintf(stderr, "(afm-main-plugin) call_appid: %s -> %s\n", sid, obj ? json_object_to_json_string(obj) : "NULL");
97         free(sid);
98         request->errcode = obj ? MHD_HTTP_OK : MHD_HTTP_FAILED_DEPENDENCY;
99         return obj;
100 }
101
102 static struct json_object *call_runid(AFB_request *request, AFB_PostItem *item)
103 {
104         struct json_object *obj;
105         const char *id = getQueryValue(request, _runid_);
106         if (id == NULL) {
107                 request->errcode = MHD_HTTP_BAD_REQUEST;
108                 return NULL;
109         }
110         obj = jbus_call_sj_sync(jbus, request->api, id);
111         if (verbose)
112                 fprintf(stderr, "(afm-main-plugin) call_runid: %s -> %s\n", id, obj ? json_object_to_json_string(obj) : "NULL");
113         request->errcode = obj ? MHD_HTTP_OK : MHD_HTTP_FAILED_DEPENDENCY;
114         return obj;
115 }
116
117 static struct json_object *call_void__runnables(AFB_request *request, AFB_PostItem *item)
118 {
119         return embed(request, _runnables_, call_void(request, item));
120 }
121
122 static struct json_object *call_start(AFB_request *request, AFB_PostItem *item)
123 {
124         struct json_object *resp;
125         const char *id, *mode;
126         char *query;
127         int rc;
128
129         /* get the id */
130         id = getQueryValue(request, _id_);
131         if (id == NULL) {
132                 request->errcode = MHD_HTTP_BAD_REQUEST;
133                 return NULL;
134         }
135         /* get the mode */
136         mode = getQueryValue(request, _mode_);
137         if (mode == NULL || !strcmp(mode, _auto_)) {
138                 mode = request->config->mode == AFB_MODE_REMOTE ? _remote_ : _local_;
139         }
140
141         /* create the query */
142         rc = asprintf(&query, "{\"id\":\"%s\",\"mode\":\"%s\"}", id, mode);
143         if (rc < 0) {
144                 request->errcode = MHD_HTTP_INTERNAL_SERVER_ERROR;
145                 return NULL;
146         }
147
148         /* calls the service */
149         resp = jbus_call_sj_sync(jbus, _start_, query);
150         if (verbose)
151                 fprintf(stderr, "(afm-main-plugin) call_start: %s -> %s\n", query, resp ? json_object_to_json_string(resp) : "NULL");
152         free(query);
153
154         /* embed if needed */
155         if (json_object_get_type(resp) == json_type_int)
156                 resp = embed(request, _runid_, resp);
157         request->errcode = resp ? MHD_HTTP_OK : MHD_HTTP_FAILED_DEPENDENCY;
158         return resp;
159 }
160
161 static struct json_object *call_void__runners(AFB_request *request, AFB_PostItem *item)
162 {
163         return embed(request, _runners_, call_void(request, item));
164 }
165
166 static struct json_object *call_file__appid(AFB_request *request, AFB_PostItem *item)
167 {
168         if (item == NULL) {
169                 const char *filename = getPostPath(request);
170                 if (filename != NULL) {
171                         struct json_object *obj;
172                         char *query;
173                         request->jresp = NULL;
174                         if (0 >= asprintf(&query, "\"%s\"", filename))
175                                 request->errcode = MHD_HTTP_INTERNAL_SERVER_ERROR;
176                         else {
177                                 obj = jbus_call_sj_sync(jbus, request->api, query);
178                                 if (verbose)
179                                         fprintf(stderr, "(afm-main-plugin) call_file_appid: %s -> %s\n", query, obj ? json_object_to_json_string(obj) : "NULL");
180                                 free(query);
181                                 if (obj)
182                                         request->jresp = embed(request, _id_, obj);
183                                 else
184                                         request->errcode = MHD_HTTP_FAILED_DEPENDENCY;
185                         }
186                         unlink(filename);
187                 }
188         }
189         return getPostFile (request, item, "/tmp/upload");
190 }
191
192 static AFB_restapi plug_apis[] =
193 {
194         {_runnables_, AFB_SESSION_CHECK, (AFB_apiCB)call_void__runnables,  "Get list of runnable applications"},
195         {_detail_   , AFB_SESSION_CHECK, (AFB_apiCB)call_appid, "Get the details for one application"},
196         {_start_    , AFB_SESSION_CHECK, (AFB_apiCB)call_start, "Start an application"},
197         {_terminate_, AFB_SESSION_CHECK, (AFB_apiCB)call_runid, "Terminate a running application"},
198         {_stop_     , AFB_SESSION_CHECK, (AFB_apiCB)call_runid, "Stop (pause) a running application"},
199         {_continue_ , AFB_SESSION_CHECK, (AFB_apiCB)call_runid, "Continue (resume) a stopped application"},
200         {_runners_  , AFB_SESSION_CHECK, (AFB_apiCB)call_void__runners,  "Get the list of running applications"},
201         {_state_    , AFB_SESSION_CHECK, (AFB_apiCB)call_runid, "Get the state of a running application"},
202         {_install_  , AFB_SESSION_CHECK, (AFB_apiCB)call_file__appid,  "Install an application using a widget file"},
203         {_uninstall_, AFB_SESSION_CHECK, (AFB_apiCB)call_appid, "Uninstall an application"},
204         {NULL}
205 };
206
207 static AFB_plugin plug_desc = {
208         .type = AFB_PLUGIN_JSON,
209         .info = "Application Framework Master Service",
210         .prefix = "afm-main",
211         .apis = plug_apis
212 };
213
214 AFB_plugin *pluginRegister()
215 {
216         jbus = create_jbus(1, "/org/AGL/afm/user");
217         if (jbus)
218                 return &plug_desc;
219         fprintf(stderr, "ERROR: %s:%d: can't connect to DBUS session\n", __FILE__, __LINE__);
220         return NULL;
221 }
222