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/*
* 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"
// Dummy sample of Client Application Context
typedef struct {
int something;
void *whateveryouwant;
} MyClientApplicationHandle;
// Request Creation of new context if it does not exist
STATIC json_object* clientContextCreate (AFB_request *request) {
json_object *jresp;
int res;
char *token;
AFB_clientCtx *client=request->client; // get client context from request
// check we do not already have a session
if ((client != NULL) && (client->ctx != NULL)) {
request->errcode=MHD_HTTP_FORBIDDEN;
return (jsonNewMessage(AFB_FAIL, "Token exist use refresh"));
}
// request a new client context token and check result
if (AFB_UNAUTH == ctxTokenCreate (request)) {
request->errcode=MHD_HTTP_UNAUTHORIZED;
jresp= jsonNewMessage(AFB_FAIL, "No/Invalid initial token provided [should match --token=xxxx]");
return (jresp);
}
// request a new client context token and check result
if (AFB_SUCCESS != ctxTokenCreate (request)) {
request->errcode=MHD_HTTP_UNAUTHORIZED;
jresp= jsonNewMessage(AFB_FAIL, "Token Session Not Activated [restart with --token=xxxx]");
return (jresp);
}
// add a client context to session
client->ctx = malloc (sizeof (MyClientApplicationHandle));
// Send response to UI
jresp = json_object_new_object();
json_object_object_add(jresp, "token", json_object_new_string (client->token));
return (jresp);
}
// Renew an existing context
STATIC json_object* clientContextRefresh (AFB_request *request) {
json_object *jresp;
// note: we do not need to parse the old token as clientContextRefresh doit for us
if (AFB_SUCCESS != ctxTokenRefresh (request)) {
request->errcode=MHD_HTTP_UNAUTHORIZED;
jresp= jsonNewMessage(AFB_FAIL, "Token Exchange Broken Refresh Refused");
} else {
jresp = json_object_new_object();
json_object_object_add(jresp, "token", json_object_new_string (request->client->token));
}
return (jresp);
}
// Verify a context is still valid
STATIC json_object* clientContextCheck (AFB_request *request) {
json_object *jresp = json_object_new_object();
// add an error code to respond
if (AFB_SUCCESS != ctxTokenCheck (request)) {
request->errcode=MHD_HTTP_UNAUTHORIZED;
json_object_object_add(jresp, "isvalid", json_object_new_boolean (FALSE));
} else {
json_object_object_add(jresp, "isvalid", json_object_new_boolean (TRUE));
}
return (jresp);
}
// Close and Free context
STATIC json_object* clientContextReset (AFB_request *request) {
json_object *jresp;
// note: we do not need to parse the old token as clientContextRefresh doit for us
if (AFB_SUCCESS != ctxTokenReset (request)) {
request->errcode=MHD_HTTP_UNAUTHORIZED;
jresp= jsonNewMessage(AFB_FAIL, "No Token Client Context [use --token=xxx]");
} else {
jresp = json_object_new_object();
json_object_object_add(jresp, "uuid", json_object_new_string (request->client->uuid));
}
return (jresp);
}
// Some file upload sample
STATIC json_object* clientFileUpload (AFB_request *request) {
int fd;
json_object *jresp;
char filepath[512];
char *filename;
getQueryValue(request, "filename");
if (filename == NULL) return (jsonNewMessage(AFB_FAIL, "No Filename provided"));
// add an error code to respond
if (request->post == NULL) {
request->errcode=MHD_HTTP_UNAUTHORIZED;
return (jsonNewMessage(AFB_FAIL, "Post No Data"));
}
// This is simple test let's write file in config->session->filename
strncpy (filepath, request->config->configfile, sizeof(filepath));
strncat (filepath, "/", sizeof(filepath));
strncat (filepath, "/", sizeof(filepath));
if((fd = open(request->config->configfile, O_RDONLY)) < 0) {
return (jsonNewMessage(AFB_FAIL,"Fail to Upload file [%s] at [%s] error=\n", filename, filepath, strerror(errno)));
};
// write file on disk and free fd
write (fd, request->post, request->len);
close(fd);
return (jresp);
}
// This function is call when Client Session Context is removed
// Note: when freeCtxCB==NULL standard free/malloc is called
STATIC void clientContextFree(AFB_clientCtx *client) {
fprintf (stderr,"Plugin[%s] Closing Session uuid=[%s]\n", client->plugin->prefix, client->uuid);
free (client->ctx);
}
STATIC AFB_restapi pluginApis[]= {
{"ping" , (AFB_apiCB)apiPingTest ,"Ping Rest Test Service"},
{"token-create" , (AFB_apiCB)clientContextCreate ,"Request Client Context Creation"},
{"token-refresh" , (AFB_apiCB)clientContextRefresh,"Refresh Client Context Token"},
{"token-check" , (AFB_apiCB)clientContextCheck ,"Check Client Context Token"},
{"token-reset" , (AFB_apiCB)clientContextReset ,"Close Client Context and Free resources"},
{"file-upload" , (AFB_apiCB)clientFileUpload ,"Demo for file upload"},
{NULL}
};
PUBLIC AFB_plugin *afsvRegister () {
AFB_plugin *plugin = malloc (sizeof (AFB_plugin));
plugin->type = AFB_PLUGIN_JSON;
plugin->info = "Application Framework Binder Service";
plugin->prefix= "afbs"; // url base
plugin->apis = pluginApis;
plugin->handle= (void*) "What ever you want";
plugin->freeCtxCB= (void*) clientContextFree;
return (plugin);
};
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