#include "utils-upoll.h"
struct api_desc {
- struct AFB_plugin *plugin; /* descriptor */
- size_t prefixlen;
- const char *prefix;
- void *handle; /* context of dlopen */
- struct AFB_interface *interface;
+ struct afb_api api;
+ const char *name;
+ size_t namelen;
};
-static int api_timeout = 15;
static struct api_desc *apis_array = NULL;
static int apis_count = 0;
-static const char plugin_register_function[] = "pluginRegister";
-
-static const struct afb_poll_itf upoll_itf = {
- .on_readable = (void*)upoll_on_readable,
- .on_writable = (void*)upoll_on_writable,
- .on_hangup = (void*)upoll_on_hangup,
- .close = (void*)upoll_close
-};
-
-
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);
-}
-
-static struct afb_poll itf_poll_open(int fd, void *closure)
-{
- struct afb_poll result;
- result.data = upoll_open(fd, closure);
- result.itf = result.data ? &upoll_itf : NULL;
- return result;
+ const struct afb_api *api;
+ api = &apis_array[apiidx].api;
+ api->free_context(api->closure, context);
}
-
-int afb_apis_add_plugin(const char *path)
+int afb_apis_add(const char *name, struct afb_api api)
{
struct api_desc *apis;
- struct AFB_plugin *plugin;
- struct AFB_plugin *(*pluginRegisterFct) (const struct AFB_interface *interface);
- struct AFB_interface *interface;
- 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) {
+ fprintf(stderr, "empty api name forbidden\n");
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)) {
+ fprintf(stderr, "ERROR: api of name %s already exists\n", name);
+ goto error;
+ }
}
- if (verbosity)
- 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;
+ fprintf(stderr, "out of memory\n");
+ goto error;
}
apis_array = apis;
- /* allocates the interface */
- interface = calloc(1, sizeof *interface);
- if (interface == NULL) {
- fprintf(stderr, "ERROR: plugin [%s] memory missing. continuing...\n", path);
- goto error2;
- }
- interface->verbosity = 0;
- interface->mode = AFB_MODE_LOCAL;
- interface->poll_open = itf_poll_open;
-
- /* init the plugin */
- plugin = pluginRegisterFct(interface);
- if (plugin == NULL) {
- fprintf(stderr, "ERROR: plugin [%s] register function failed. continuing...\n", path);
- goto error3;
- }
-
- /* check the returned structure */
- if (plugin->type != AFB_PLUGIN_JSON) {
- fprintf(stderr, "ERROR: plugin [%s] invalid type %d...\n", path, plugin->type);
- goto error3;
- }
- if (plugin->prefix == NULL || *plugin->prefix == 0) {
- fprintf(stderr, "ERROR: plugin [%s] bad prefix...\n", path);
- goto error3;
- }
- if (plugin->info == NULL || *plugin->info == 0) {
- fprintf(stderr, "ERROR: plugin [%s] bad description...\n", path);
- goto error3;
- }
- if (plugin->apis == NULL) {
- fprintf(stderr, "ERROR: plugin [%s] no APIs...\n", path);
- goto error3;
- }
-
- /* check previously existing plugin */
- for (i = 0 ; i < apis_count ; i++) {
- if (!strcasecmp(apis_array[i].prefix, plugin->prefix)) {
- fprintf(stderr, "ERROR: plugin [%s] prefix %s duplicated...\n", path, plugin->prefix);
- goto error2;
- }
- }
-
/* record the plugin */
- if (verbosity)
- 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 = strlen(plugin->prefix);
- apis->prefix = plugin->prefix;
- apis->handle = handle;
- apis->interface = interface;
+ apis->api = api;
+ apis->namelen = len;
+ apis->name = name;
apis_count++;
return 0;
-error3:
- free(interface);
-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_clientCtx *context, const char *api, size_t lenapi, const char *verb, size_t lenverb)
{
- 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 (verbosity)
- 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;
-}
-
-int afb_apis_add_directory(const char *path)
-{
- size_t length;
- char buffer[PATH_MAX];
-
- length = strlen(path);
- if (length >= sizeof(buffer)) {
- fprintf(stderr, "path too long %lu [%.99s...]\n", (unsigned long)length, path);
- return -1;
- }
-
- 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);
- };
-}
-
-// Check of apiurl is declare in this plugin and call it
-extern __thread sigjmp_buf *error_handler;
-static void trapping_handle(struct afb_req req, void(*cb)(struct afb_req))
-{
- volatile int signum, timerset;
- timer_t timerid;
- sigjmp_buf jmpbuf, *older;
- struct sigevent sevp;
- struct itimerspec its;
-
- // save context before calling the API
- timerset = 0;
- older = error_handler;
- signum = setjmp(jmpbuf);
- if (signum != 0) {
- afb_req_fail_f(req, "aborted", "signal %d caught", signum);
- }
- else {
- error_handler = &jmpbuf;
- if (api_timeout > 0) {
- timerset = 1; /* TODO: check statuses */
- sevp.sigev_notify = SIGEV_THREAD_ID;
- sevp.sigev_signo = SIGALRM;
- sevp.sigev_value.sival_ptr = NULL;
-#if defined(sigev_notify_thread_id)
- sevp.sigev_notify_thread_id = (pid_t)syscall(SYS_gettid);
-#else
- sevp._sigev_un._tid = (pid_t)syscall(SYS_gettid);
-#endif
- timer_create(CLOCK_THREAD_CPUTIME_ID, &sevp, &timerid);
- its.it_interval.tv_sec = 0;
- its.it_interval.tv_nsec = 0;
- its.it_value.tv_sec = api_timeout;
- its.it_value.tv_nsec = 0;
- timer_settime(timerid, 0, &its, NULL);
- }
-
- cb(req);
- }
- if (timerset)
- timer_delete(timerid);
- error_handler = older;
-}
-
-static void handle(struct afb_req req, const struct AFB_restapi *verb)
-{
- switch(verb->session) {
- case AFB_SESSION_CREATE:
- if (!afb_req_session_create(req))
- return;
- break;
- case AFB_SESSION_RENEW:
- if (!afb_req_session_check(req, 1))
- return;
- break;
- case AFB_SESSION_CLOSE:
- case AFB_SESSION_CHECK:
- if (!afb_req_session_check(req, 0))
- return;
- break;
- case AFB_SESSION_NONE:
- default:
- break;
- }
- trapping_handle(req, verb->callback);
-
- if (verb->session == AFB_SESSION_CLOSE)
- afb_req_session_close(req);
-}
-
-int afb_apis_handle(struct afb_req req, struct AFB_clientCtx *context, const char *api, size_t lenapi, const char *verb, size_t lenverb)
-{
- int i, j;
+ int i;
const struct api_desc *a;
- const struct AFB_restapi *v;
a = apis_array;
for (i = 0 ; i < apis_count ; i++, a++) {
- if (a->prefixlen == lenapi && !strncasecmp(a->prefix, api, lenapi)) {
- v = a->plugin->apis;
- for (j = 0 ; v->name ; j++, v++) {
- if (!strncasecmp(v->name, verb, lenverb) && !v->name[lenverb]) {
- req.context = &context->contexts[i];
- handle(req, v);
- return 1;
- }
- }
- afb_req_fail_f(req, "unknown-verb", "verb %.*s unknown within api %s", (int)lenverb, verb, a->prefix);
- return 1;
+ if (a->namelen == lenapi && !strncasecmp(a->name, api, lenapi)) {
+ req.context = &context->contexts[i];
+ a->api.call(a->api.closure, req, verb, lenverb);
+ return;
}
}
- return 0;
+ afb_req_fail(req, "fail", "api not found");
}
Code Review / src / app-framework-binder.git / blobdiff