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/*
* Copyright (C) 2016 "IoT.bzh"
* Author "Fulup Ar Foll"
* Author José Bollo <jose.bollo@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <assert.h>
#include <string.h>
#include <dirent.h>
#include <dlfcn.h>
#include <unistd.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <signal.h>
#include <time.h>
#include <sys/syscall.h>
#include <setjmp.h>
#include "afb-plugin.h"
#include "afb-req-itf.h"
#include "afb-poll-itf.h"
#include "session.h"
#include "afb-apis.h"
#include "verbose.h"
#include "utils-upoll.h"
struct api_desc {
struct afb_api api;
const char *name;
size_t namelen;
};
static struct api_desc *apis_array = NULL;
static int apis_count = 0;
int afb_apis_count()
{
return apis_count;
}
void afb_apis_free_context(int apiidx, void *context)
{
const struct afb_api *api;
api = &apis_array[apiidx].api;
api->free_context(api->closure, context);
}
int afb_apis_add(const char *name, struct afb_api api)
{
struct api_desc *apis;
size_t len;
int i;
/* check existing or not */
len = strlen(name);
if (len == 0) {
fprintf(stderr, "empty api name forbidden\n");
goto error;
}
/* check previously existing plugin */
for (i = 0 ; i < apis_count ; i++) {
if (!strcasecmp(apis_array[i].name, name)) {
fprintf(stderr, "ERROR: api of name %s already exists\n", name);
goto error;
}
}
/* allocates enough memory */
apis = realloc(apis_array, ((unsigned)apis_count + 1) * sizeof * apis);
if (apis == NULL) {
fprintf(stderr, "out of memory\n");
goto error;
}
apis_array = apis;
/* record the plugin */
apis = &apis_array[apis_count];
apis->api = api;
apis->namelen = len;
apis->name = name;
apis_count++;
return 0;
error:
return -1;
}
void afb_apis_call(struct afb_req req, struct AFB_clientCtx *context, const char *api, size_t lenapi, const char *verb, size_t lenverb)
{
int i;
const struct api_desc *a;
a = apis_array;
for (i = 0 ; i < apis_count ; i++, a++) {
if (a->namelen == lenapi && !strncasecmp(a->name, api, lenapi)) {
req.context = &context->contexts[i];
a->api.call(a->api.closure, req, verb, lenverb);
return;
}
}
afb_req_fail(req, "fail", "api not found");
}
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