2 * Copyright (C) 2015 "IoT.bzh"
3 * Author "Fulup Ar Foll"
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.
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.
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/>.
20 #include "local-def.h"
22 // Dummy sample of Client Application Context
25 void *whateveryouwant;
26 } MyClientApplicationHandle;
29 // Request Creation of new context if it does not exist
30 STATIC json_object* clientContextCreate (AFB_request *request) {
33 // add an application specific client context to session
34 request->client->ctx = malloc (sizeof (MyClientApplicationHandle));
36 // Send response to UI
37 jresp = json_object_new_object();
38 json_object_object_add(jresp, "token", json_object_new_string ("A New Token and Session Context Was Created"));
43 // Before entering here token will be check and renew
44 STATIC json_object* clientContextRefresh (AFB_request *request) {
48 jresp = json_object_new_object();
49 json_object_object_add(jresp, "token", json_object_new_string ("Token was refreshed"));
55 // Session token will we verified before entering here
56 STATIC json_object* clientContextCheck (AFB_request *request) {
58 json_object *jresp = json_object_new_object();
59 json_object_object_add(jresp, "isvalid", json_object_new_boolean (TRUE));
65 // Close and Free context
66 STATIC json_object* clientContextReset (AFB_request *request) {
69 jresp = json_object_new_object();
70 json_object_object_add(jresp, "uuid", json_object_new_string (request->client->uuid));
75 // In this case or handle is quite basic
80 // This function is call when PostForm processing is completed
81 STATIC void DonePostForm (AFB_request *request) {
82 AFB_PostHandle *postHandle = (AFB_PostHandle*)request->post->data;
83 appPostCtx *appCtx= postHandle->ctx;
85 // Close upload file ID
88 // Free application specific handle
89 free (postHandle->ctx);
91 if (verbose) fprintf (stderr, "DonePostForm upload done\n");
95 // WARNING: PostForm callback are call multiple time (one or each key within form)
96 // When processing POST_JSON request->data hold a PostHandle and not data directly as for POST_JSON
97 STATIC json_object* ProcessPostForm (AFB_request *request, AFB_PostItem *item) {
99 AFB_PostHandle *postHandle;
103 // When Post is fully processed the same callback is call with a item==NULL
105 // Close file, Free handle
107 request->errcode = MHD_HTTP_OK;
108 return(jsonNewMessage(AFB_SUCCESS,"File [%s] uploaded at [%s] error=\n", item->filename, request->config->sessiondir));
111 // Let's make sure this is a valid PostForm request
112 if (!request->post && request->post->type != AFB_POST_FORM) {
113 request->errcode = MHD_HTTP_FORBIDDEN;
114 return(jsonNewMessage(AFB_FAIL,"This is not a valid PostForm request\n"));
116 // In AFB_POST_FORM case post->data is a PostForm handle
117 postHandle = (AFB_PostHandle*) request->post->data;
118 appCtx = (appPostCtx*) postHandle->ctx;
121 // Check this is a file element
122 if (0 != strcmp (item->key, "file")) {
123 request->errcode = MHD_HTTP_FORBIDDEN;
124 return (jsonNewMessage(AFB_FAIL,"No File within element key=%s\n", item->key));
127 // This is the 1st Item iteration let's open output file and allocate necessary resources
128 if (postHandle->ctx == NULL) {
131 strncpy (filepath, request->config->sessiondir, sizeof(filepath));
132 strncat (filepath, "/", sizeof(filepath));
133 strncat (filepath, item->filename, sizeof(filepath));
135 if((fd = open(request->config->sessiondir, O_RDONLY)) < 0) {
136 request->errcode = MHD_HTTP_FORBIDDEN;
137 return (jsonNewMessage(AFB_FAIL,"Fail to Upload file [%s] at [%s] error=\n", item->filename, request->config->sessiondir, strerror(errno)));
140 // Create an application specific context
141 appCtx = malloc (sizeof(appPostCtx)); // May place anything here until post->completeCB handle resources liberation
144 // attach application to postHandle
145 postHandle->ctx = (void*) appCtx; // May place anything here until post->completeCB handle resources liberation
146 postHandle->completeCB = (AFB_apiCB)DonePostForm; // CallBack when Form Processing is finished
149 // this is not the call, FD is already open
150 appCtx = (appPostCtx*) postHandle->ctx;
153 // We have something to write
156 if (!write (appCtx->fd, item->data, item->len)) {
157 request->errcode = MHD_HTTP_FORBIDDEN;
158 return (jsonNewMessage(AFB_FAIL,"Fail to write file [%s] at [%s] error=\n", item->filename, strerror(errno)));
162 // every event should return Sucess or Form processing stop
163 request->errcode = MHD_HTTP_OK;
167 // This function is call when Client Session Context is removed
168 // Note: when freeCtxCB==NULL standard free/malloc is called
169 STATIC void clientContextFree(AFB_clientCtx *client) {
170 fprintf (stderr,"Plugin[%s] Closing Session uuid=[%s]\n", client->plugin->prefix, client->uuid);
174 STATIC AFB_restapi pluginApis[]= {
175 {"ping" , AFB_SESSION_NONE , (AFB_apiCB)apiPingTest ,"Ping Rest Test Service"},
176 {"token-create" , AFB_SESSION_CREATE, (AFB_apiCB)clientContextCreate ,"Request Client Context Creation"},
177 {"token-refresh" , AFB_SESSION_RENEW , (AFB_apiCB)clientContextRefresh,"Refresh Client Context Token"},
178 {"token-check" , AFB_SESSION_CHECK , (AFB_apiCB)clientContextCheck ,"Check Client Context Token"},
179 {"token-reset" , AFB_SESSION_CLOSE , (AFB_apiCB)clientContextReset ,"Close Client Context and Free resources"},
180 {"file-upload" , AFB_SESSION_NONE , (AFB_apiCB)ProcessPostForm ,"Demo for file upload"},
184 PUBLIC AFB_plugin *afsvRegister () {
185 AFB_plugin *plugin = malloc (sizeof (AFB_plugin));
186 plugin->type = AFB_PLUGIN_JSON;
187 plugin->info = "Application Framework Binder Service";
188 plugin->prefix= "afbs"; // url base
189 plugin->apis = pluginApis;
190 plugin->handle= (void*) "What ever you want";
191 plugin->freeCtxCB= (void*) clientContextFree;