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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 <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "session.h"
#include "verbose.h"
#include "afb-apis.h"
#include "afb-context.h"
#include "afb-hook.h"
#include <afb/afb-req-itf.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;
}
int afb_apis_is_valid_api_name(const char *name)
{
unsigned char c;
c = (unsigned char)*name;
if (c == 0)
return 0;
do {
if (c < (unsigned char)'\x80') {
switch(c) {
default:
if (c > ' ')
break;
case '"':
case '#':
case '%':
case '&':
case '\'':
case '/':
case '?':
case '`':
case '\\':
case '\x7f':
return 0;
}
}
c = (unsigned char)*++name;
} while(c != 0);
return 1;
}
int afb_apis_add(const char *name, struct afb_api api)
{
struct api_desc *apis;
int i;
/* Checks the api name */
if (!afb_apis_is_valid_api_name(name)) {
ERROR("invalid api name forbidden (name is '%s')", name);
goto error;
}
/* check previously existing plugin */
for (i = 0 ; i < apis_count ; i++) {
if (!strcasecmp(apis_array[i].name, name)) {
ERROR("api of name %s already exists", name);
goto error;
}
}
/* allocates enough memory */
apis = realloc(apis_array, ((unsigned)apis_count + 1) * sizeof * apis);
if (apis == NULL) {
ERROR("out of memory");
goto error;
}
apis_array = apis;
/* record the plugin */
apis = &apis_array[apis_count];
apis->api = api;
apis->namelen = strlen(name);
apis->name = name;
apis_count++;
return 0;
error:
return -1;
}
void afb_apis_call_(struct afb_req req, struct afb_context *context, const char *api, const char *verb)
{
afb_apis_call(req, context, api, strlen(api), verb, strlen(verb));
}
void afb_apis_call(struct afb_req req, struct afb_context *context, const char *api, size_t lenapi, const char *verb, size_t lenverb)
{
int i;
const struct api_desc *a;
req = afb_hook_req_call(req, context, api, lenapi, verb, lenverb);
a = apis_array;
for (i = 0 ; i < apis_count ; i++, a++) {
if (a->namelen == lenapi && !strncasecmp(a->name, api, lenapi)) {
context->api_index = i;
a->api.call(a->api.closure, req, context, verb, lenverb);
return;
}
}
afb_req_fail(req, "fail", "api not found");
}
int afb_apis_start_service(const char *api, int share_session, int onneed)
{
int i;
for (i = 0 ; i < apis_count ; i++) {
if (!strcasecmp(apis_array[i].name, api))
return apis_array[i].api.service_start(apis_array[i].api.closure, share_session, onneed);
}
ERROR("can't find service %s", api);
return -1;
}
int afb_apis_start_all_services(int share_session)
{
int i, rc;
for (i = 0 ; i < apis_count ; i++) {
rc = apis_array[i].api.service_start(apis_array[i].api.closure, share_session, 1);
if (rc < 0)
return rc;
}
return 0;
}
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