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"
23 // In this case or handle is quite basic
28 // This function is call when PostForm processing is completed
29 STATIC void DonePostForm (AFB_request *request) {
30 AFB_PostHandle *postHandle = (AFB_PostHandle*)request->post->data;
31 appPostCtx *appCtx= postHandle->ctx;
33 // Close upload file ID
36 // Free application specific handle
37 free (postHandle->ctx);
39 if (verbose) fprintf (stderr, "DonePostForm upload done\n");
43 // WARNING: PostForm callback are call multiple time (one or each key within form)
44 // When processing POST_JSON request->data hold a PostHandle and not data directly as for POST_JSON
45 STATIC json_object* ProcessPostForm (AFB_request *request, AFB_PostItem *item) {
47 AFB_PostHandle *postHandle;
51 // When Post is fully processed the same callback is call with a item==NULL
53 // Close file, Free handle
55 request->errcode = MHD_HTTP_OK;
56 return(jsonNewMessage(AFB_SUCCESS,"File [%s] uploaded at [%s] error=\n", item->filename, request->config->sessiondir));
59 // Let's make sure this is a valid PostForm request
60 if (!request->post && request->post->type != AFB_POST_FORM) {
61 request->errcode = MHD_HTTP_FORBIDDEN;
62 return(jsonNewMessage(AFB_FAIL,"This is not a valid PostForm request\n"));
64 // In AFB_POST_FORM case post->data is a PostForm handle
65 postHandle = (AFB_PostHandle*) request->post->data;
66 appCtx = (appPostCtx*) postHandle->ctx;
69 // Check this is a file element
70 if (0 != strcmp (item->key, "file")) {
71 request->errcode = MHD_HTTP_FORBIDDEN;
72 return (jsonNewMessage(AFB_FAIL,"No File within element key=%s\n", item->key));
75 // This is the 1st Item iteration let's open output file and allocate necessary resources
76 if (postHandle->ctx == NULL) {
79 strncpy (filepath, request->config->sessiondir, sizeof(filepath));
80 strncat (filepath, "/", sizeof(filepath));
81 strncat (filepath, item->filename, sizeof(filepath));
83 if((fd = open(request->config->sessiondir, O_RDONLY)) < 0) {
84 request->errcode = MHD_HTTP_FORBIDDEN;
85 return (jsonNewMessage(AFB_FAIL,"Fail to Upload file [%s] at [%s] error=\n", item->filename, request->config->sessiondir, strerror(errno)));
88 // Create an application specific context
89 appCtx = malloc (sizeof(appPostCtx)); // May place anything here until post->completeCB handle resources liberation
92 // attach application to postHandle
93 postHandle->ctx = (void*) appCtx; // May place anything here until post->completeCB handle resources liberation
94 postHandle->completeCB = (AFB_apiCB)DonePostForm; // CallBack when Form Processing is finished
97 // this is not the call, FD is already open
98 appCtx = (appPostCtx*) postHandle->ctx;
101 // We have something to write
104 if (!write (appCtx->fd, item->data, item->len)) {
105 request->errcode = MHD_HTTP_FORBIDDEN;
106 return (jsonNewMessage(AFB_FAIL,"Fail to write file [%s] at [%s] error=\n", item->filename, strerror(errno)));
110 // every event should return Sucess or Form processing stop
111 request->errcode = MHD_HTTP_OK;
115 // This function is call when Client Session Context is removed
116 // Note: when freeCtxCB==NULL standard free/malloc is called
117 STATIC void clientContextFree(AFB_clientCtx *client) {
118 fprintf (stderr,"Plugin[%s] Closing Session uuid=[%s]\n", client->plugin->prefix, client->uuid);
122 STATIC AFB_restapi pluginApis[]= {
123 {"ping" , AFB_SESSION_NONE , (AFB_apiCB)apiPingTest ,"Ping Rest Test Service"},
124 {"upload" , AFB_SESSION_NONE , (AFB_apiCB)ProcessPostForm ,"Demo for file upload"},
128 PUBLIC AFB_plugin *afsvRegister () {
129 AFB_plugin *plugin = malloc (sizeof (AFB_plugin));
130 plugin->type = AFB_PLUGIN_JSON;
131 plugin->info = "Application Framework Binder Service";
132 plugin->prefix= "post"; // url base
133 plugin->apis = pluginApis;
134 plugin->handle= (void*) "What ever you want";
135 plugin->freeCtxCB= (void*) clientContextFree;