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.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long *//*
* Copyright (C) 2015 "IoT.bzh"
* Author "Fulup Ar Foll"
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "local-def.h"
// In this case or handle is quite basic
typedef struct {
int fd;
char *path;
json_object* jerror;
} appPostCtx;
// With content-type=json data are directly avaliable in request->post->data
STATIC json_object* GetJsonByPost (AFB_request *request) {
json_object* jresp;
char query [256];
int len;
// check if we have some post data
if (request->post == NULL) request->post->data="NoData";
// Get all query string [Note real app should probably use value=getQueryValue(request,"key")]
len = getQueryAll (request, query, sizeof(query));
if (len == 0) strncpy (query, "NoSearchQueryList", sizeof(query));
// for debug/test return response to caller
jresp = jsonNewMessage(AFB_SUCCESS, "GetJsonByPost query={%s} PostData: [%s]", query, request->post->data);
return (jresp);
}
// This function is call when PostForm processing is completed
STATIC void DonePostForm (AFB_request *request) {
// Retrieve PostHandle Context from request
AFB_PostHandle *postHandle = getPostHandle(request);
appPostCtx *appCtx= (appPostCtx*) postHandle->ctx;
if (verbose) fprintf (stderr, "DonePostForm file=[%s]upload done\n", appCtx->path);
}
// PostForm callback is called multiple times (one or each key within form, or once per file buffer)
// When processing POST_FORM request->data holds a PostHandle and not data directly as for POST_JSON
// When file has been fully uploaded call is call with item==NULL it is application responsibility to free appPostCtx
STATIC json_object* UploadFile (AFB_request *request, AFB_PostItem *item) {
AFB_PostHandle *postHandle = getPostHandle(request);
appPostCtx *appCtx;
char filepath[512];
int len;
// This is called after PostForm and then after DonePostForm
if (item == NULL) {
json_object* jresp;
appCtx = (appPostCtx*) postHandle->ctx;
// No Post Application Context [something really bad happen]
if (appCtx == NULL) {
request->errcode = MHD_HTTP_EXPECTATION_FAILED;
return(jsonNewMessage(AFB_FAIL,"Error: PostForm no PostContext to free\n"));
}
// We have a context but last Xform iteration fail.
if (appCtx->jerror != NULL) {
request->errcode = MHD_HTTP_EXPECTATION_FAILED;
jresp = appCtx->jerror; // retrieve previous error from postCtx
} else jresp = jsonNewMessage(AFB_FAIL,"UploadFile Post Request file=[%s] done", appCtx->path);
// Error or not let's free all resources
close(appCtx->fd);
free (appCtx->path);
free (appCtx);
return (jresp);
}
// Make sure it's a valid PostForm request
if (!request->post && request->post->type != AFB_POST_FORM) {
appCtx->jerror= jsonNewMessage(AFB_FAIL,"This is not a valid PostForm request\n");
goto ExitOnError;
}
// Check this is a file element
if (item->filename == NULL) {
appCtx->jerror= jsonNewMessage(AFB_FAIL,"No Filename attached to key=%s\n", item->key);
goto ExitOnError;
}
// Check we got something in buffer
if (item->len <= 0) {
appCtx->jerror= jsonNewMessage(AFB_FAIL,"Buffer size NULL key=%s]\n", item->key);
goto ExitOnError;
}
// Extract Application Context from posthandle [NULL == 1st iteration]
appCtx = (appPostCtx*) postHandle->ctx;
// This is the 1st Item iteration let's open output file and allocate necessary resources
if (appCtx == NULL) {
// Create an application specific context
appCtx = calloc (1, sizeof(appPostCtx)); // May place anything here until post->completeCB handle resources liberation
appCtx->path = strdup (filepath);
// attach application to postHandle
postHandle->ctx = (void*) appCtx; // May place anything here until post->completeCB handle resources liberation
// Allocate an application specific handle to this post
strncpy (filepath, request->config->sessiondir, sizeof(filepath));
strncat (filepath, "/", sizeof(filepath));
strncat (filepath, item->filename, sizeof(filepath));
if((appCtx->fd = open(filepath, O_RDWR |O_CREAT, S_IRWXU|S_IRGRP)) < 0) {
appCtx->jerror= jsonNewMessage(AFB_FAIL,"Fail to Create destination=[%s] error=%s\n", filepath, strerror(errno));
goto ExitOnError;
}
} else {
// reuse existing application context
appCtx = (appPostCtx*) postHandle->ctx;
}
// Check we successfully wrote full buffer
len = write (appCtx->fd, item->data, item->len);
if (item->len != len) {
appCtx->jerror= jsonNewMessage(AFB_FAIL,"Fail to write file [%s] at [%s] error=\n", item->filename, strerror(errno));
goto ExitOnError;
}
// every intermediary iteration should return Success & NULL
request->errcode = MHD_HTTP_OK;
return NULL;
ExitOnError:
request->errcode = MHD_HTTP_EXPECTATION_FAILED;
return NULL;
}
// NOTE: this sample does not use session to keep test a basic as possible
// in real application upload-xxx should be protected with AFB_SESSION_CHECK
STATIC AFB_restapi pluginApis[]= {
{"ping" , AFB_SESSION_NONE , (AFB_apiCB)apiPingTest ,"Ping Rest Test Service"},
{"upload-json" , AFB_SESSION_NONE , (AFB_apiCB)GetJsonByPost ,"Demo for Json Buffer on Post"},
{"upload-image" , AFB_SESSION_NONE , (AFB_apiCB)UploadFile ,"Demo for file upload"},
{"upload-music" , AFB_SESSION_NONE , (AFB_apiCB)UploadFile ,"Demo for file upload"},
{"upload-appli" , AFB_SESSION_NONE , (AFB_apiCB)UploadFile ,"Demo for file upload"},
{NULL}
};
PUBLIC AFB_plugin *pluginRegister () {
AFB_plugin *plugin = malloc (sizeof (AFB_plugin));
plugin->type = AFB_PLUGIN_JSON;
plugin->info = "Application Framework Binder Service";
plugin->prefix= "post"; // url base
plugin->apis = pluginApis;
plugin->handle= (void*) "What ever you want";
return (plugin);
};
