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"
24 // handle to hold queryAll values
31 // Sample Generic Ping Debug API
32 PUBLIC json_object* getPingTest(AFB_request *request) {
34 json_object *response;
39 // request all query key/value
40 len = getQueryAll (request, query, sizeof(query));
41 if (len == 0) strncpy (query, "NoSearchQueryList", sizeof(query));
43 // check if we have some post data
44 if (request->post == NULL) request->post->data="NoData";
46 // return response to caller
47 response = jsonNewMessage(AFB_SUCCESS, "Ping Binder Daemon count=%d uuid=%s query={%s} session={0x%x} PostData: [%s] "
48 , pingcount++, request->uuid, query, session, request->post->data);
53 // Helper to retrieve argument from connection
54 PUBLIC const char* getQueryValue(const AFB_request * request, const char *name) {
57 value = MHD_lookup_connection_value(request->connection, MHD_GET_ARGUMENT_KIND, name);
61 STATIC int getQueryCB (void*handle, enum MHD_ValueKind kind, const char *key, const char *value) {
62 queryHandleT *query = (queryHandleT*)handle;
64 query->idx += snprintf (&query->msg[query->idx],query->len," %s: \'%s\',", key, value);
67 // Helper to retrieve argument from connection
68 PUBLIC int getQueryAll(AFB_request * request, char *buffer, size_t len) {
70 buffer[0] = '\0'; // start with an empty string
75 MHD_get_connection_values (request->connection, MHD_GET_ARGUMENT_KIND, getQueryCB, &query);
79 // Helper to retrieve POST handle
80 PUBLIC AFB_PostHandle* getPostHandle (AFB_request *request) {
81 if (request->post == NULL) return (NULL);
82 return ((AFB_PostHandle*) request->post->data);
85 // Helper to retrieve POST file context
86 PUBLIC AFB_PostCtx* getPostContext (AFB_request *request) {
87 AFB_PostHandle* postHandle;
88 if (request->post == NULL) return (NULL);
90 postHandle = (AFB_PostHandle*) request->post->data;
91 if (postHandle == NULL) return NULL;
93 return ((AFB_PostCtx*) postHandle->ctx);
96 PUBLIC char* getPostPath (AFB_request *request) {
97 AFB_PostHandle *postHandle = getPostHandle(request);
98 AFB_PostCtx *postFileCtx;
100 if (postHandle == NULL) return NULL;
102 postFileCtx = (AFB_PostCtx*) postHandle->ctx;
103 if (postFileCtx == NULL) return NULL;
105 return (postFileCtx->path);
108 PUBLIC json_object* getPostFile (AFB_request *request, AFB_PostItem *item, char* destination) {
110 AFB_PostHandle *postHandle = getPostHandle(request);
111 AFB_PostCtx *postFileCtx;
115 // This is called after PostForm and then after DonePostForm
118 postFileCtx = (AFB_PostCtx*) postHandle->ctx;
120 // No Post Application Context [something really bad happen]
121 if (postFileCtx == NULL) {
122 request->errcode = MHD_HTTP_EXPECTATION_FAILED;
123 return(jsonNewMessage(AFB_FAIL,"Error: PostForm no PostContext to free\n"));
126 // We have a context but last Xform iteration fail or application set a message
127 if (postFileCtx->jresp != NULL) {
128 jresp = postFileCtx->jresp; // retrieve previous error from postCtx
129 if (postFileCtx->errcode != 0) request->errcode=postFileCtx->errcode;
131 else jresp = jsonNewMessage(AFB_FAIL,"getPostFile Post Request done");
133 // Error or not let's free all resources
134 close(postFileCtx->fd);
135 free (postFileCtx->path);
140 // Make sure it's a valid PostForm request
141 if (!request->post && request->post->type != AFB_POST_FORM) {
142 postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"This is not a valid PostForm request\n");
146 // Check this is a file element
147 if (item->filename == NULL) {
148 postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"No Filename attached to key=%s\n", item->key);
152 // Check we got something in buffer
153 if (item->len <= 0) {
154 postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"Buffer size NULL key=%s]\n", item->key);
158 // Extract Application Context from posthandle [NULL == 1st iteration]
159 postFileCtx = (AFB_PostCtx*) postHandle->ctx;
161 // This is the 1st Item iteration let's open output file and allocate necessary resources
162 if (postFileCtx == NULL) {
165 // Create an application specific context
166 postFileCtx = calloc (1, sizeof(AFB_PostCtx)); // May place anything here until post->completeCB handle resources liberation
167 postFileCtx->path = strdup (filepath);
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 ( 0 <= mkdir(filepath,O_RDWR | S_IRWXU | S_IRGRP)) {
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 if((postFileCtx->fd = open(filepath, O_RDWR |O_CREAT, S_IRWXU|S_IRGRP)) <= 0) {
193 postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"Fail to Create destination File=[%s] error=%s\n", filepath, strerror(errno));
197 // reuse existing application context
198 postFileCtx = (AFB_PostCtx*) postHandle->ctx;
201 // Check we successfully wrote full buffer
202 len = write (postFileCtx->fd, item->data, item->len);
203 if (item->len != len) {
204 postFileCtx->jresp= jsonNewMessage(AFB_FAIL,"Fail to write file [%s] at [%s] error=\n", item->filename, strerror(errno));
208 // every intermediary iteration should return Success & NULL
209 request->errcode = MHD_HTTP_OK;
213 request->errcode = MHD_HTTP_EXPECTATION_FAILED;