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
  20 #include "local-def.h"
  21
  22 #include "utils-jbus.h"
  23
  24 static const char _id_[]        = "id";
  25 static const char _runid_[]     = "runid";
  26 static char _runnables_[] = "runnables";
  27 static char _detail_[]    = "detail";
  28 static char _start_[]     = "start";
  29 static char _terminate_[] = "terminate";
  30 static char _stop_[]      = "stop";
  31 static char _continue_[]  = "continue";
  32 static char _runners_[]   = "runners";
  33 static char _state_[]     = "state";
  34 static char _install_[]   = "install";
  35 static char _uninstall_[] = "uninstall";
  36
  37 static struct jbus *jbus;
  38
  39 static struct json_object *embed(AFB_request *request, const char *tag, struct json_object *obj)
  40 {
  41         struct json_object *result;
  42
  43         if (obj == NULL)
  44                 result = NULL;
  45         else if (!tag) {
  46                 request->errcode = MHD_HTTP_OK;
  47                 result = obj;
  48         }
  49         else {
  50                 result = json_object_new_object();
  51                 if (result == NULL) {
  52                         /* can't embed */
  53                         result = obj;
  54                         request->errcode = MHD_HTTP_INTERNAL_SERVER_ERROR;
  55                 }
  56                 else {
  57                         /* TODO why is json-c not returning a status? */
  58                         json_object_object_add(result, tag, obj);
  59                         request->errcode = MHD_HTTP_OK;
  60                 }
  61         }
  62         return result;
  63 }
  64
  65 static struct json_object *call(AFB_request *request, AFB_PostItem *item, const char *tag, struct json_object *(*fun)(AFB_request*,AFB_PostItem*))
  66 {
  67         return embed(request, tag, fun(request, item));
  68 }
  69
  70 static struct json_object *call_void(AFB_request *request, AFB_PostItem *item)
  71 {
  72         struct json_object *obj = jbus_call_sj_sync(jbus, request->api, "true");
  73         request->errcode = obj ? MHD_HTTP_OK : MHD_HTTP_FAILED_DEPENDENCY;
  74         return obj;
  75 }
  76
  77 static struct json_object *call_appid(AFB_request *request, AFB_PostItem *item)
  78 {
  79         struct json_object *obj;
  80         char *sid;
  81         const char *id = getQueryValue(request, _id_);
  82         if (id == NULL) {
  83                 request->errcode = MHD_HTTP_BAD_REQUEST;
  84                 return NULL;
  85         }
  86         if (0 >= asprintf(&sid, "\"%s\"", id)) {
  87                 request->errcode = MHD_HTTP_INTERNAL_SERVER_ERROR;
  88                 return NULL;
  89         }
  90         obj = jbus_call_sj_sync(jbus, request->api, sid);
  91         free(sid);
  92         request->errcode = obj ? MHD_HTTP_OK : MHD_HTTP_FAILED_DEPENDENCY;
  93         return obj;
  94 }
  95
  96 static struct json_object *call_runid(AFB_request *request, AFB_PostItem *item)
  97 {
  98         struct json_object *obj;
  99         const char *id = getQueryValue(request, _runid_);
 100         if (id == NULL) {
 101                 request->errcode = MHD_HTTP_BAD_REQUEST;
 102                 return NULL;
 103         }
 104         obj = jbus_call_sj_sync(jbus, request->api, id);
 105         request->errcode = obj ? MHD_HTTP_OK : MHD_HTTP_FAILED_DEPENDENCY;
 106         return obj;
 107 }
 108
 109 static struct json_object *call_void__runnables(AFB_request *request, AFB_PostItem *item)
 110 {
 111         return embed(request, _runnables_, call_void(request, item));
 112 }
 113
 114 static struct json_object *call_appid__runid(AFB_request *request, AFB_PostItem *item)
 115 {
 116         return embed(request, _runid_, call_appid(request, item));
 117 }
 118
 119 static struct json_object *call_void__runners(AFB_request *request, AFB_PostItem *item)
 120 {
 121         return embed(request, _runners_, call_void(request, item));
 122 }
 123
 124 static struct json_object *call_file__appid(AFB_request *request, AFB_PostItem *item)
 125 {
 126         if (item == NULL) {
 127                 struct json_object *obj;
 128                 char *query;
 129                 const char *filename = getPostPath(request);
 130                 request->jresp = NULL;
 131                 if (0 >= asprintf(&query, "\"%s\"", filename))
 132                         request->errcode = MHD_HTTP_INTERNAL_SERVER_ERROR;
 133                 else {
 134                         obj = jbus_call_sj_sync(jbus, request->api, query);
 135                         free(query);
 136                         if (obj)
 137                                 request->jresp = embed(request, _id_, obj);
 138                         else
 139                                 request->errcode = MHD_HTTP_FAILED_DEPENDENCY;
 140                 }
 141                 unlink(filename);
 142         }
 143         return getPostFile (request, item, "/tmp");
 144 }
 145
 146 static AFB_restapi plug_apis[] =
 147 {
 148         {_runnables_, AFB_SESSION_CHECK, (AFB_apiCB)call_void__runnables,  "Get list of runnable applications"},
 149         {_detail_   , AFB_SESSION_CHECK, (AFB_apiCB)call_appid, "Get the details for one application"},
 150         {_start_    , AFB_SESSION_CHECK, (AFB_apiCB)call_appid__runid, "Start an application"},
 151         {_terminate_, AFB_SESSION_CHECK, (AFB_apiCB)call_runid, "Terminate a running application"},
 152         {_stop_     , AFB_SESSION_CHECK, (AFB_apiCB)call_runid, "Stop (pause) a running application"},
 153         {_continue_ , AFB_SESSION_CHECK, (AFB_apiCB)call_runid, "Continue (resume) a stopped application"},
 154         {_runners_  , AFB_SESSION_CHECK, (AFB_apiCB)call_void__runners,  "Get the list of running applications"},
 155         {_state_    , AFB_SESSION_CHECK, (AFB_apiCB)call_runid, "Get the state of a running application"},
 156         {_install_  , AFB_SESSION_CHECK, (AFB_apiCB)call_file__appid,  "Install an application using a widget file"},
 157         {_uninstall_, AFB_SESSION_CHECK, (AFB_apiCB)call_appid, "Uninstall an application"},
 158         {NULL}
 159 };
 160
 161 static AFB_plugin plug_desc = {
 162         .type = AFB_PLUGIN_JSON,
 163         .info = "Application Framework Master Service",
 164         .prefix = "afm-main",
 165         .apis = plug_apis
 166 };
 167
 168 AFB_plugin *pluginRegister()
 169 {
 170         jbus = create_jbus(1, "/org/AGL/afm/user");
 171         return jbus ? &plug_desc : NULL;
 172 }
 173