* Author "Fulup Ar Foll"
* Author José Bollo <jose.bollo@iot.bzh>
*
- * 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.
+ * 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
*
- * 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.
+ * http://www.apache.org/licenses/LICENSE-2.0
*
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- * Contain all generic part to handle REST/API
- *
- * https://www.gnu.org/software/libmicrohttpd/tutorial.html [search 'largepost.c']
+ * 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 <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 "../include/local-def.h"
+#include "session.h"
+#include "verbose.h"
#include "afb-apis.h"
+#include "afb-context.h"
+#include <afb/afb-req-itf.h>
struct api_desc {
- AFB_plugin *plugin; /* descriptor */
- size_t prefixlen;
- const char *prefix;
- void *handle; /* context of dlopen */
+ struct afb_api api;
+ const char *name;
+ size_t namelen;
};
static struct api_desc *apis_array = NULL;
static int apis_count = 0;
-static const char plugin_register_function[] = "pluginRegister";
-
int afb_apis_count()
{
return apis_count;
}
-void afb_apis_free_context(int apiidx, void *context)
-{
- void (*cb)(void*);
-
- assert(0 <= apiidx && apiidx < apis_count);
- cb = apis_array[apiidx].plugin->freeCtxCB;
- if (cb)
- cb(context);
- else
- free(context);
-}
-
-const struct AFB_restapi *afb_apis_get(int apiidx, int verbidx)
-{
- assert(0 <= apiidx && apiidx < apis_count);
- return &apis_array[apiidx].plugin->apis[verbidx];
-}
-
-int afb_apis_get_verbidx(int apiidx, const char *name)
-{
- const struct AFB_restapi *apis;
- int idx;
-
- assert(0 <= apiidx && apiidx < apis_count);
- apis = apis_array[apiidx].plugin->apis;
- for (idx = 0 ; apis[idx].name ; idx++)
- if (!strcasecmp(apis[idx].name, name))
- return idx;
- return -1;
-}
-
-int afb_apis_get_apiidx(const char *prefix, size_t length)
-{
- int i;
- const struct api_desc *a;
-
- if (!length)
- length = strlen(prefix);
-
- for (i = 0 ; i < apis_count ; i++) {
- a = &apis_array[i];
- if (a->prefixlen == length && !strcasecmp(a->prefix, prefix))
- return i;
- }
- return -1;
-}
-
-int afb_apis_add_plugin(const char *path)
+int afb_apis_add(const char *name, struct afb_api api)
{
struct api_desc *apis;
- AFB_plugin *plugin;
- AFB_plugin *(*pluginRegisterFct) (void);
- void *handle;
size_t len;
+ int i;
- // This is a loadable library let's check if it's a plugin
- handle = dlopen(path, RTLD_NOW | RTLD_LOCAL);
- if (handle == NULL) {
- fprintf(stderr, "[%s] not loadable, continuing...\n", path);
+ /* check existing or not */
+ len = strlen(name);
+ if (len == 0) {
+ ERROR("empty api name forbidden");
goto error;
}
- /* retrieves the register function */
- pluginRegisterFct = dlsym(handle, plugin_register_function);
- if (!pluginRegisterFct) {
- fprintf(stderr, "[%s] not an AFB plugin, continuing...\n", path);
- goto error2;
+ /* 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;
+ }
}
- if (verbose)
- fprintf(stderr, "[%s] is a valid AFB plugin\n", path);
/* allocates enough memory */
apis = realloc(apis_array, ((unsigned)apis_count + 1) * sizeof * apis);
if (apis == NULL) {
- fprintf(stderr, "ERROR: plugin [%s] memory missing. continuing...\n", path);
- goto error2;
+ ERROR("out of memory");
+ goto error;
}
apis_array = apis;
- /* init the plugin */
- plugin = pluginRegisterFct();
- if (plugin == NULL) {
- fprintf(stderr, "ERROR: plugin [%s] register function failed. continuing...\n", path);
- goto error2;
- }
-
- /* check the returned structure */
- if (plugin->type != AFB_PLUGIN_JSON) {
- fprintf(stderr, "ERROR: plugin [%s] invalid type %d...\n", path, plugin->type);
- goto error2;
- }
- if (plugin->prefix == NULL || *plugin->prefix == 0) {
- fprintf(stderr, "ERROR: plugin [%s] bad prefix...\n", path);
- goto error2;
- }
- if (plugin->info == NULL || *plugin->info == 0) {
- fprintf(stderr, "ERROR: plugin [%s] bad description...\n", path);
- goto error2;
- }
- if (plugin->apis == NULL) {
- fprintf(stderr, "ERROR: plugin [%s] no APIs...\n", path);
- goto error2;
- }
-
- /* check previously existing plugin */
- len = strlen(plugin->prefix);
- if (afb_apis_get_apiidx(plugin->prefix, len) >= 0) {
- fprintf(stderr, "ERROR: plugin [%s] prefix %s duplicated...\n", path, plugin->prefix);
- goto error2;
- }
-
/* record the plugin */
- if (verbose)
- fprintf(stderr, "Loading plugin[%lu] prefix=[%s] info=%s\n", (unsigned long)apis_count, plugin->prefix, plugin->info);
apis = &apis_array[apis_count];
- apis->plugin = plugin;
- apis->prefixlen = len;
- apis->prefix = plugin->prefix;
- apis->handle = handle;
+ apis->api = api;
+ apis->namelen = len;
+ apis->name = name;
apis_count++;
return 0;
-error2:
- dlclose(handle);
error:
return -1;
}
-static int adddirs(char path[PATH_MAX], size_t end)
+void afb_apis_call_(struct afb_req req, struct afb_context *context, const char *api, const char *verb)
{
- int rc;
- DIR *dir;
- struct dirent ent, *result;
- size_t len;
-
- /* open the DIR now */
- dir = opendir(path);
- if (dir == NULL) {
- fprintf(stderr, "ERROR in scanning plugin directory %s, %m\n", path);
- return -1;
- }
- if (verbose)
- fprintf(stderr, "Scanning dir=[%s] for plugins\n", path);
-
- /* scan each entry */
- if (end)
- path[end++] = '/';
- for (;;) {
- readdir_r(dir, &ent, &result);
- if (result == NULL)
- break;
-
- len = strlen(ent.d_name);
- if (len + end >= PATH_MAX) {
- fprintf(stderr, "path too long for %s\n", ent.d_name);
- continue;
- }
- memcpy(&path[end], ent.d_name, len+1);
- if (ent.d_type == DT_DIR) {
- /* case of directories */
- if (ent.d_name[0] == '.') {
- if (len == 1)
- continue;
- if (ent.d_name[1] == '.' && len == 2)
- continue;
- }
- rc = adddirs(path, end+len);;
- } else if (ent.d_type == DT_REG) {
- /* case of files */
- if (!strstr(ent.d_name, ".so"))
- continue;
- rc = afb_apis_add_plugin(path);
- }
- }
- closedir(dir);
- return 0;
+ afb_apis_call(req, context, api, strlen(api), verb, strlen(verb));
}
-int afb_apis_add_directory(const char *path)
+void afb_apis_call(struct afb_req req, struct afb_context *context, const char *api, size_t lenapi, const char *verb, size_t lenverb)
{
- size_t length;
- char buffer[PATH_MAX];
+ int i;
+ const struct api_desc *a;
- length = strlen(path);
- if (length >= sizeof(buffer)) {
- fprintf(stderr, "path too long %lu [%.99s...]\n", (unsigned long)length, path);
- return -1;
+ 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;
+ }
}
-
- memcpy(buffer, path, length + 1);
- return adddirs(buffer, length);
-}
-
-int afb_apis_add_path(const char *path)
-{
- struct stat st;
- int rc;
-
- rc = stat(path, &st);
- if (rc < 0)
- fprintf(stderr, "Invalid plugin path [%s]: %m\n", path);
- else if (S_ISDIR(st.st_mode))
- rc = afb_apis_add_directory(path);
- else
- rc = afb_apis_add_plugin(path);
- return rc;
-}
-
-int afb_apis_add_pathset(const char *pathset)
-{
- static char sep[] = ":";
- char *ps, *p;
- int rc;
-
- ps = strdupa(pathset);
- for (;;) {
- p = strsep(&ps, sep);
- if (!p)
- return 0;
- rc = afb_apis_add_path(p);
- };
+ afb_req_fail(req, "fail", "api not found");
}
Code Review / src / app-framework-binder.git / blobdiff