+++ /dev/null
-/*
- Copyright 2015 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.
-*/
-
-#include <stdlib.h>
-#include <assert.h>
-#include <string.h>
-#include <errno.h>
-#include <dirent.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <sys/types.h>
-
-#include <json.h>
-
-#include <wgt-info.h>
-
-struct afapps {
- struct json_object *pubarr;
- struct json_object *direct;
- struct json_object *byapp;
-};
-
-struct appfwk {
- int refcount;
- int nrroots;
- char **roots;
- struct afapps applications;
-};
-
-struct appfwk *appfwk_create()
-{
- struct appfwk *appfwk = malloc(sizeof * appfwk);
- if (appfwk == NULL)
- errno = ENOMEM;
- else {
- appfwk->refcount = 1;
- appfwk->nrroots = 0;
- appfwk->roots = NULL;
- appfwk->applications.pubarr = NULL;
- appfwk->applications.direct = NULL;
- appfwk->applications.byapp = NULL;
- }
- return appfwk;
-}
-
-void appfwk_addref(struct appfwk *appfwk)
-{
- assert(appfwk);
- appfwk->refcount++;
-}
-
-void appfwk_unref(struct appfwk *appfwk)
-{
- assert(appfwk);
- if (!--appfwk->refcount) {
- json_object_put(appfwk->applications.pubarr);
- json_object_put(appfwk->applications.direct);
- json_object_put(appfwk->applications.byapp);
- while (appfwk->nrroots)
- free(appfwk->roots[--appfwk->nrroots]);
- free(appfwk->roots);
- free(appfwk);
- }
-}
-
-int appfwk_add_root(struct appfwk *appfwk, const char *path)
-{
- int i, n;
- char *r, **roots;
-
- assert(appfwk);
-
- /* don't depend on the cwd and unique name */
- r = realpath(path, NULL);
- if (!r)
- return -1;
-
- /* avoiding duplications */
- n = appfwk->nrroots;
- roots = appfwk->roots;
- for (i = 0 ; i < n ; i++) {
- if (!strcmp(r, roots[i])) {
- free(r);
- return 0;
- }
- }
-
- /* add */
- roots = realloc(roots, (n + 1) * sizeof(roots[0]));
- if (!roots) {
- free(r);
- errno = ENOMEM;
- return -1;
- }
- roots[n++] = r;
- appfwk->roots = roots;
- appfwk->nrroots = n;
- return 0;
-}
-
-static int json_add(struct json_object *obj, const char *key, struct json_object *val)
-{
- json_object_object_add(obj, key, val);
- return 0;
-}
-
-static int json_add_str(struct json_object *obj, const char *key, const char *val)
-{
- struct json_object *str = json_object_new_string (val ? val : "");
- return str ? json_add(obj, key, str) : -1;
-}
-
-static int json_add_int(struct json_object *obj, const char *key, int val)
-{
- struct json_object *v = json_object_new_int (val);
- return v ? json_add(obj, key, v) : -1;
-}
-
-static int addapp(struct afapps *apps, const char *path)
-{
- struct wgt_info *info;
- const struct wgt_desc *desc;
- const struct wgt_desc_feature *feat;
- struct json_object *priv = NULL, *pub, *bya, *plugs, *str;
- char *appid, *end;
-
- /* connect to the widget */
- info = wgt_info_createat(AT_FDCWD, path, 0, 1, 0);
- if (info == NULL)
- goto error;
- desc = wgt_info_desc(info);
-
- /* create the application id */
- appid = alloca(2 + strlen(desc->id) + strlen(desc->version));
- end = stpcpy(appid, desc->id);
- *end++ = '@';
- strcpy(end, desc->version);
-
- /* create the application structure */
- priv = json_object_new_object();
- if (!priv)
- goto error2;
-
- pub = json_object_new_object();
- if (!priv)
- goto error2;
-
- if (json_add(priv, "public", pub)) {
- json_object_put(pub);
- goto error2;
- }
-
- plugs = json_object_new_array();
- if (!priv)
- goto error2;
-
- if (json_add(priv, "plugins", plugs)) {
- json_object_put(plugs);
- goto error2;
- }
-
- if(json_add_str(pub, "id", appid)
- || json_add_str(priv, "id", desc->id)
- || json_add_str(pub, "version", desc->version)
- || json_add_str(priv, "path", path)
- || json_add_int(pub, "width", desc->width)
- || json_add_int(pub, "height", desc->height)
- || json_add_str(pub, "name", desc->name)
- || json_add_str(pub, "description", desc->description)
- || json_add_str(pub, "shortname", desc->name_short)
- || json_add_str(pub, "author", desc->author))
- goto error2;
-
- feat = desc->features;
- while (feat) {
- static const char prefix[] = FWK_PREFIX_PLUGIN;
- if (!memcmp(feat->name, prefix, sizeof prefix - 1)) {
- str = json_object_new_string (feat->name + sizeof prefix - 1);
- if (str == NULL)
- goto error2;
- if (json_object_array_add(plugs, str)) {
- json_object_put(str);
- goto error2;
- }
- }
- feat = feat->next;
- }
-
- /* record the application structure */
- if (!json_object_object_get_ex(apps->byapp, desc->id, &bya)) {
- bya = json_object_new_object();
- if (!bya)
- goto error2;
- if (json_add(apps->byapp, desc->id, bya)) {
- json_object_put(bya);
- goto error2;
- }
- }
-
- if (json_add(apps->direct, appid, priv))
- goto error2;
- json_object_get(priv);
-
- if (json_add(bya, desc->version, priv)) {
- json_object_put(priv);
- goto error2;
- }
-
- if (json_object_array_add(apps->pubarr, pub))
- goto error2;
-
- wgt_info_unref(info);
- return 0;
-
-error2:
- json_object_put(priv);
- wgt_info_unref(info);
-error:
- return -1;
-}
-
-struct enumdata {
- char path[PATH_MAX];
- int length;
- struct afapps apps;
-};
-
-static int enumentries(struct enumdata *data, int (*callto)(struct enumdata *))
-{
- DIR *dir;
- int rc;
- char *beg, *end;
- struct dirent entry, *e;
-
- /* opens the directory */
- dir = opendir(data->path);
- if (!dir)
- return -1;
-
- /* prepare appending entry names */
- beg = data->path + data->length;
- *beg++ = '/';
-
- /* enumerate entries */
- rc = readdir_r(dir, &entry, &e);
- while (!rc && e) {
- if (entry.d_name[0] != '.' || (entry.d_name[1] && (entry.d_name[1] != '.' || entry.d_name[2]))) {
- /* prepare callto */
- end = stpcpy(beg, entry.d_name);
- data->length = end - data->path;
- /* call the function */
- rc = callto(data);
- if (rc)
- break;
- }
- rc = readdir_r(dir, &entry, &e);
- }
- closedir(dir);
- return rc;
-}
-
-static int recordapp(struct enumdata *data)
-{
- return addapp(&data->apps, data->path);
-}
-
-/* enumerate the versions */
-static int enumvers(struct enumdata *data)
-{
- int rc = enumentries(data, recordapp);
- return !rc || errno != ENOTDIR ? 0 : rc;
-}
-
-/* regenerate the list of applications */
-int appfwk_update_applications(struct appfwk *af)
-{
- int rc, iroot;
- struct enumdata edata;
- struct afapps oldapps;
-
- /* create the result */
- edata.apps.pubarr = json_object_new_array();
- edata.apps.direct = json_object_new_object();
- edata.apps.byapp = json_object_new_object();
- if (edata.apps.pubarr == NULL || edata.apps.direct == NULL || edata.apps.byapp == NULL) {
- errno = ENOMEM;
- goto error;
- }
- /* for each root */
- for (iroot = 0 ; iroot < af->nrroots ; iroot++) {
- edata.length = stpcpy(edata.path, af->roots[iroot]) - edata.path;
- assert(edata.length < sizeof edata.path);
- /* enumerate the applications */
- rc = enumentries(&edata, enumvers);
- if (rc)
- goto error;
- }
- /* commit the result */
- oldapps = af->applications;
- af->applications = edata.apps;
- json_object_put(oldapps.pubarr);
- json_object_put(oldapps.direct);
- json_object_put(oldapps.byapp);
- return 0;
-
-error:
- json_object_put(edata.apps.pubarr);
- json_object_put(edata.apps.direct);
- json_object_put(edata.apps.byapp);
- return -1;
-}
-
-int appfwk_ensure_applications(struct appfwk *af)
-{
- return af->applications.pubarr ? 0 : appfwk_update_applications(af);
-}
-
-struct json_object *appfwk_application_list(struct appfwk *af)
-{
- return appfwk_ensure_applications(af) ? NULL : af->applications.pubarr;
-}
-
-struct json_object *appfwk_get_application(struct appfwk *af, const char *id)
-{
- struct json_object *result;
- if (!appfwk_ensure_applications(af) && json_object_object_get_ex(af->applications.direct, id, &result))
- return result;
- return NULL;
-}
-
-struct json_object *appfwk_get_application_public(struct appfwk *af, const char *id)
-{
- struct json_object *result = appfwk_get_application(af, id);
- return result && json_object_object_get_ex(result, "public", &result) ? result : NULL;
-}
-
-
-
-
-#if defined(TESTAPPFWK)
-#include <stdio.h>
-int main()
-{
-struct appfwk *af = appfwk_create();
-appfwk_add_root(af,FWK_APP_DIR);
-appfwk_update_applications(af);
-printf("array = %s\n", json_object_to_json_string_ext(af->applications.pubarr, 3));
-printf("direct = %s\n", json_object_to_json_string_ext(af->applications.direct, 3));
-printf("byapp = %s\n", json_object_to_json_string_ext(af->applications.byapp, 3));
-return 0;
-}
-#endif
-
Code Review / src / app-framework-main.git / blobdiff