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 "../include/local-def.h"
23 #include <sys/types.h>
26 // handle to hold queryAll values
33 // Sample Generic Ping Debug API
34 PUBLIC json_object* getPingTest(AFB_request *request) {
35 static int pingcount = 0;
36 json_object *response;
41 // request all query key/value
42 len = getQueryAll (request, query, sizeof(query));
43 if (len == 0) strncpy (query, "NoSearchQueryList", sizeof(query));
45 // check if we have some post data
46 if (request->post == NULL) request->post->data="NoData";
48 // return response to caller
49 response = jsonNewMessage(AFB_SUCCESS, "Ping Binder Daemon count=%d uuid=%s query={%s} session={0x%x} PostData: [%s] "
50 , pingcount++, request->uuid, query, session, request->post->data);
55 // Helper to retrieve argument from connection
56 PUBLIC const char* getQueryValue(const AFB_request * request, const char *name) {
59 value = MHD_lookup_connection_value(request->connection, MHD_GET_ARGUMENT_KIND, name);
63 STATIC int getQueryCB (void*handle, enum MHD_ValueKind kind, const char *key, const char *value) {
64 queryHandleT *query = (queryHandleT*)handle;
66 query->idx += snprintf (&query->msg[query->idx],query->len," %s: \'%s\',", key, value);
67 return MHD_YES; /* continue to iterate */
70 // Helper to retrieve argument from connection
71 PUBLIC int getQueryAll(AFB_request * request, char *buffer, size_t len) {
73 buffer[0] = '\0'; // start with an empty string
78 MHD_get_connection_values (request->connection, MHD_GET_ARGUMENT_KIND, getQueryCB, &query);
82 // Helper to retrieve POST handle
83 PUBLIC AFB_PostHandle* getPostHandle (AFB_request *request) {
84 if (request->post == NULL) return (NULL);
85 return ((AFB_PostHandle*) request->post->data);
88 // Helper to retrieve POST file context
89 PUBLIC AFB_PostCtx* getPostContext (AFB_request *request) {
90 AFB_PostHandle* postHandle;
91 if (request->post == NULL) return (NULL);
93 postHandle = (AFB_PostHandle*) request->post->data;
94 if (postHandle == NULL) return NULL;
96 return ((AFB_PostCtx*) postHandle->ctx);
99 PUBLIC char* getPostPath (AFB_request *request) {
100 AFB_PostHandle *postHandle = getPostHandle(request);
101 AFB_PostCtx *postFileCtx;
103 if (postHandle == NULL) return NULL;
105 postFileCtx = (AFB_PostCtx*) postHandle->ctx;
106 if (postFileCtx == NULL) return NULL;
108 return (postFileCtx->path);
111 PUBLIC json_object* getPostFile (AFB_request *request, AFB_PostItem *item, char* destination) {
113 AFB_PostHandle *postHandle = getPostHandle(request);
114 AFB_PostCtx *postFileCtx;
118 // This is called after PostForm and then after DonePostForm
121 postFileCtx = (AFB_PostCtx*) postHandle->ctx;
123 // No Post Application Context [something really bad happen]
124 if (postFileCtx == NULL) {
125 request->errcode = MHD_HTTP_EXPECTATION_FAILED;
126 return(jsonNewMessage(AFB_FAIL,"Error: PostForm no PostContext to free\n"));
129 // We have a context but last Xform iteration fail or application set a message
130 if (request->jresp != NULL) {
131 jresp = request->jresp; // retrieve previous error from postCtx
132 } else jresp = jsonNewMessage(AFB_SUCCESS,"getPostFile Post Request done");
134 // Error or not let's free all resources
135 close(postFileCtx->fd);
136 free (postFileCtx->path);
140 #if defined(PLEASE_FIX_ME_THE_ERROR_IS_postFileCtx_NOT_INITIALIZED)
141 // Make sure it's a valid PostForm request
142 if (!request->post && request->post->type != AFB_POST_FORM) {
143 postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"This is not a valid PostForm request\n");
147 // Check this is a file element
148 if (item->filename == NULL) {
149 postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"No Filename attached to key=%s\n", item->key);
153 // Check we got something in buffer
154 if (item->len <= 0) {
155 postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"Buffer size NULL key=%s]\n", item->key);
159 // Extract Application Context from posthandle [NULL == 1st iteration]
160 postFileCtx = (AFB_PostCtx*) postHandle->ctx;
162 // This is the 1st Item iteration let's open output file and allocate necessary resources
163 if (postFileCtx == NULL) {
166 // Create an application specific context
167 postFileCtx = calloc (1, sizeof(AFB_PostCtx)); // May place anything here until post->completeCB handle resources liberation
169 // attach application to postHandle
170 postHandle->ctx = (void*) postFileCtx; // May place anything here until post->completeCB handle resources liberation
172 // Build destination directory full path
173 if (destination[0] != '/') {
174 strncpy (filepath, request->config->sessiondir, sizeof(filepath));
175 strncat (filepath, "/", sizeof(filepath));
176 strncat (filepath, destination, sizeof(filepath));
177 } else strncpy (filepath, destination, sizeof(filepath));
180 // make sure destination directory exist
181 destDir = opendir (filepath);
182 if (destDir == NULL) {
183 if (mkdir(filepath,O_RDWR | S_IRWXU | S_IRGRP) < 0) {
184 postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"Fail to Create destination directory=[%s] error=%s\n", filepath, strerror(errno));
187 } else closedir (destDir);
189 strncat (filepath, "/", sizeof(filepath));
190 strncat (filepath, item->filename, sizeof(filepath));
192 postFileCtx->path = strdup (filepath);
193 if (verbose) fprintf(stderr, "getPostFile path=%s\n", filepath);
195 if((postFileCtx->fd = open(filepath, O_RDWR |O_CREAT, S_IRWXU|S_IRGRP)) <= 0) {
196 postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"Fail to Create destination File=[%s] error=%s\n", filepath, strerror(errno));
200 // reuse existing application context
201 postFileCtx = (AFB_PostCtx*) postHandle->ctx;
204 // Check we successfully wrote full buffer
205 len = write (postFileCtx->fd, item->data, item->len);
206 if ((ssize_t)item->len != len) {
207 postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"Fail to write file [%s] at [%s] error=\n", item->filename, strerror(errno));
211 // every intermediary iteration should return Success & NULL
212 request->errcode = MHD_HTTP_OK;
216 request->errcode = MHD_HTTP_EXPECTATION_FAILED;