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-rw-r--r--src/rest-api.c668
1 files changed, 0 insertions, 668 deletions
diff --git a/src/rest-api.c b/src/rest-api.c
deleted file mode 100644
index 12f4a448..00000000
--- a/src/rest-api.c
+++ /dev/null
@@ -1,668 +0,0 @@
-/*
- * Copyright (C) 2015 "IoT.bzh"
- * Author "Fulup Ar Foll"
- *
- * 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.
- *
- * 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.
- *
- * 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']
- */
-
-#include "../include/local-def.h"
-
-#include <dirent.h>
-#include <dlfcn.h>
-#include <setjmp.h>
-#include <signal.h>
-
-#define AFB_MSG_JTYPE "AJB_reply"
-
-#define JSON_CONTENT "application/json"
-#define FORM_CONTENT "multipart/form-data" /* TODO: replace with MHD_HTTP_POST_ENCODING_MULTIPART_FORMDATA */
-
-
-static json_object *afbJsonType;
-
-
-// Because of POST call multiple time requestApi we need to free POST handle here
-// Note this method is called from http-svc just before closing session
-PUBLIC void endPostRequest(AFB_PostHandle *postHandle) {
-
- if (postHandle->type == AFB_POST_JSON) {
- // if (verbose) fprintf(stderr, "End PostJson Request UID=%d\n", postHandle->uid);
- }
-
- if (postHandle->type == AFB_POST_FORM) {
- if (verbose) fprintf(stderr, "End PostForm Request UID=%d\n", postHandle->uid);
- }
- if (postHandle->privatebuf) free(postHandle->privatebuf);
- free(postHandle);
-}
-
-// Check of apiurl is declare in this plugin and call it
-STATIC AFB_error callPluginApi(AFB_request *request, int plugidx, void *context) {
- json_object *jresp, *jcall, *jreqt;
- int idx, status, sig;
- AFB_clientCtx *clientCtx = NULL;
- AFB_plugin *plugin = request->plugins[plugidx];
- int signals[]= {SIGALRM, SIGSEGV, SIGFPE, 0};
-
- /*---------------------------------------------------------------
- | Signal handler defined inside CallPluginApi to access Request
- +---------------------------------------------------------------- */
- void pluginError (int signum) {
- sigset_t sigset;
-
-
- // unlock signal to allow a new signal to come
- sigemptyset (&sigset);
- sigaddset (&sigset, signum);
- sigprocmask (SIG_UNBLOCK, &sigset, 0);
-
- fprintf (stderr, "Oops: Plugin Api Timeout timeout\n");
- longjmp (request->checkPluginCall, signum);
- }
-
-
- // If a plugin hold this urlpath call its callback
- for (idx = 0; plugin->apis[idx].callback != NULL; idx++) {
- if (!strcmp(plugin->apis[idx].name, request->api)) {
-
- // Request was found and at least partially executed
- jreqt = json_object_new_object();
- json_object_get (afbJsonType); // increate jsontype reference count
- json_object_object_add (jreqt, "jtype", afbJsonType);
-
- // prepare an object to store calling values
- jcall=json_object_new_object();
- json_object_object_add(jcall, "prefix", json_object_new_string (plugin->prefix));
- json_object_object_add(jcall, "api" , json_object_new_string (plugin->apis[idx].name));
-
- // save context before calling the API
- status = setjmp (request->checkPluginCall);
- if (status != 0) {
-
- // Plugin aborted somewhere during its execution
- json_object_object_add(jcall, "status", json_object_new_string ("abort"));
- json_object_object_add(jcall, "info" , json_object_new_string ("Plugin broke during execution"));
- json_object_object_add(jreqt, "request", jcall);
-
- } else {
-
- // If timeout protection==0 we are in debug and we do not apply signal protection
- if (request->config->apiTimeout > 0) {
- for (sig=0; signals[sig] != 0; sig++) {
- if (signal (signals[sig], pluginError) == SIG_ERR) {
- request->errcode = MHD_HTTP_UNPROCESSABLE_ENTITY;
- json_object_object_add(jcall, "status", json_object_new_string ("fail"));
- json_object_object_add(jcall, "info", json_object_new_string ("Setting Timeout Handler Failed"));
- json_object_object_add(jreqt, "request", jcall);
- goto ExitOnDone;
- }
- }
- // Trigger a timer to protect from unacceptable long time execution
- alarm ((unsigned)request->config->apiTimeout);
- }
-
- // Out of SessionNone every call get a client context session
- if (AFB_SESSION_NONE != plugin->apis[idx].session) {
-
- // add client context to request
- clientCtx = ctxClientGet(request, plugidx);
- if (clientCtx == NULL) {
- request->errcode=MHD_HTTP_INSUFFICIENT_STORAGE;
- json_object_object_add(jcall, "status", json_object_new_string ("fail"));
- json_object_object_add(jcall, "info", json_object_new_string ("Client Session Context Full !!!"));
- json_object_object_add(jreqt, "request", jcall);
- goto ExitOnDone;
- };
-
- if (verbose) fprintf(stderr, "Plugin=[%s] Api=[%s] Middleware=[%d] Client=[%p] Uuid=[%s] Token=[%s]\n"
- , request->prefix, request->api, plugin->apis[idx].session, clientCtx, clientCtx->uuid, clientCtx->token);
-
- switch(plugin->apis[idx].session) {
-
- case AFB_SESSION_CREATE:
- if (clientCtx->token[0] != '\0' && request->config->token[0] != '\0') {
- request->errcode=MHD_HTTP_UNAUTHORIZED;
- json_object_object_add(jcall, "status", json_object_new_string ("exist"));
- json_object_object_add(jcall, "info", json_object_new_string ("AFB_SESSION_CREATE Session already exist"));
- json_object_object_add(jreqt, "request", jcall);
- goto ExitOnDone;
- }
-
- if (AFB_SUCCESS != ctxTokenCreate (clientCtx, request)) {
- request->errcode=MHD_HTTP_UNAUTHORIZED;
- json_object_object_add(jcall, "status", json_object_new_string ("fail"));
- json_object_object_add(jcall, "info", json_object_new_string ("AFB_SESSION_CREATE Invalid Initial Token"));
- json_object_object_add(jreqt, "request", jcall);
- goto ExitOnDone;
- } else {
- json_object_object_add(jcall, "uuid", json_object_new_string (clientCtx->uuid));
- json_object_object_add(jcall, "token", json_object_new_string (clientCtx->token));
- json_object_object_add(jcall, "timeout", json_object_new_int (request->config->cntxTimeout));
- }
- break;
-
-
- case AFB_SESSION_RENEW:
- if (AFB_SUCCESS != ctxTokenRefresh (clientCtx, request)) {
- request->errcode=MHD_HTTP_UNAUTHORIZED;
- json_object_object_add(jcall, "status", json_object_new_string ("fail"));
- json_object_object_add(jcall, "info", json_object_new_string ("AFB_SESSION_REFRESH Broken Exchange Token Chain"));
- json_object_object_add(jreqt, "request", jcall);
- goto ExitOnDone;
- } else {
- json_object_object_add(jcall, "uuid", json_object_new_string (clientCtx->uuid));
- json_object_object_add(jcall, "token", json_object_new_string (clientCtx->token));
- json_object_object_add(jcall, "timeout", json_object_new_int (request->config->cntxTimeout));
- }
- break;
-
- case AFB_SESSION_CLOSE:
- if (AFB_SUCCESS != ctxTokenCheck (clientCtx, request)) {
- request->errcode=MHD_HTTP_UNAUTHORIZED;
- json_object_object_add(jcall, "status", json_object_new_string ("empty"));
- json_object_object_add(jcall, "info", json_object_new_string ("AFB_SESSION_CLOSE Not a Valid Access Token"));
- json_object_object_add(jreqt, "request", jcall);
- goto ExitOnDone;
- } else {
- json_object_object_add(jcall, "uuid", json_object_new_string (clientCtx->uuid));
- }
- break;
-
- case AFB_SESSION_CHECK:
- default:
- // default action is check
- if (AFB_SUCCESS != ctxTokenCheck (clientCtx, request)) {
- request->errcode=MHD_HTTP_UNAUTHORIZED;
- json_object_object_add(jcall, "status", json_object_new_string ("fail"));
- json_object_object_add(jcall, "info", json_object_new_string ("AFB_SESSION_CHECK Invalid Active Token"));
- json_object_object_add(jreqt, "request", jcall);
- goto ExitOnDone;
- }
- break;
- }
- }
-
- // Effectively CALL PLUGIN API with a subset of the context
- jresp = plugin->apis[idx].callback(request, context);
-
- // Store context in case it was updated by plugins
- if (request->context != NULL) clientCtx->contexts[plugidx] = request->context;
-
- // handle intermediary Post Iterates out of band
- if ((jresp == NULL) && (request->errcode == MHD_HTTP_OK)) return (AFB_SUCCESS);
-
- // Session close is done after the API call so API can still use session in closing API
- if (AFB_SESSION_CLOSE == plugin->apis[idx].session) ctxTokenReset (clientCtx, request);
-
- // API should return NULL of a valid Json Object
- if (jresp == NULL) {
- json_object_object_add(jcall, "status", json_object_new_string ("null"));
- json_object_object_add(jreqt, "request", jcall);
- request->errcode = MHD_HTTP_NO_RESPONSE;
-
- } else {
- json_object_object_add(jcall, "status", json_object_new_string ("processed"));
- json_object_object_add(jreqt, "request", jcall);
- json_object_object_add(jreqt, "response", jresp);
- }
- // cancel timeout and plugin signal handle before next call
- if (request->config->apiTimeout > 0) {
- alarm (0);
- for (sig=0; signals[sig] != 0; sig++) {
- signal (signals[sig], SIG_DFL);
- }
- }
- }
- goto ExitOnDone;
- }
- }
- return (AFB_FAIL);
-
-ExitOnDone:
- request->jresp = jreqt;
- return (AFB_DONE);
-}
-
-STATIC AFB_error findAndCallApi (AFB_request *request, void *context) {
- int idx;
- AFB_error status;
-
- if (!request->api || !request->prefix) return (AFB_FAIL);
-
- // Search for a plugin with this urlpath
- for (idx = 0; request->plugins[idx] != NULL; idx++) {
- if (!strcmp(request->plugins[idx]->prefix, request->prefix)) {
- status =callPluginApi(request, idx, context);
- break;
- }
- }
- // No plugin was found
- if (request->plugins[idx] == NULL) {
- request->jresp = jsonNewMessage(AFB_FATAL, "No Plugin=[%s] Url=%s", request->prefix, request->url);
- goto ExitOnError;
- }
-
- // plugin callback did not return a valid Json Object
- if (status == AFB_FAIL) {
- request->jresp = jsonNewMessage(AFB_FATAL, "No API=[%s] for Plugin=[%s] url=[%s]", request->api, request->prefix, request->url);
- goto ExitOnError;
- }
-
- // Everything look OK
- return (status);
-
-ExitOnError:
- request->errcode = MHD_HTTP_UNPROCESSABLE_ENTITY;
- return (AFB_FAIL);
-}
-
-// This CB is call for every item with a form post it reformat iterator values
-// and callback Plugin API for each Item within PostForm.
-STATIC int doPostIterate (void *cls, enum MHD_ValueKind kind, const char *key,
- const char *filename, const char *mimetype,
- const char *encoding, const char *data, uint64_t offset,
- size_t size) {
-
- AFB_error status;
- AFB_PostItem item;
-
- // retrieve API request from Post iterator handle
- AFB_PostHandle *postHandle = (AFB_PostHandle*)cls;
- AFB_request *request = (AFB_request*)postHandle->privatebuf;
- AFB_PostRequest postRequest;
-
- if (verbose)
- fprintf (stderr, "postHandle key=%s filename=%s len=%zu mime=%s\n", key, filename, size, mimetype);
-
- // Create and Item value for Plugin API
- item.kind = kind;
- item.key = key;
- item.filename = filename;
- item.mimetype = mimetype;
- item.encoding = encoding;
- item.len = size;
- item.data = data;
- item.offset = offset;
-
- // Reformat Request to make it somehow similar to GET/PostJson case
- postRequest.data= (char*) postHandle;
- postRequest.len = size;
- postRequest.type= AFB_POST_FORM;;
- request->post = &postRequest;
-
- // effectively call plugin API
- status = findAndCallApi (request, &item);
- // when returning no processing of postform stop
- if (status != AFB_SUCCESS) return MHD_NO;
-
- // let's allow iterator to move to next item
- return MHD_YES;
-}
-
-STATIC void freeRequest (AFB_request *request) {
-
- free (request->prefix);
- free (request->api);
- free (request);
-}
-
-STATIC AFB_request *createRequest (struct MHD_Connection *connection, AFB_session *session, const char* url) {
-
- AFB_request *request;
-
- // Start with a clean request
- request = calloc (1, sizeof (AFB_request));
- char *urlcpy1, *urlcpy2;
- char *baseapi, *baseurl;
-
- // Extract plugin urlpath from request and make two copy because strsep overload copy
- urlcpy1 = urlcpy2 = strdup(url);
- baseurl = strsep(&urlcpy2, "/");
- if (baseurl == NULL) {
- request->jresp = jsonNewMessage(AFB_FATAL, "Invalid API call url=[%s]", url);
- request->errcode = MHD_HTTP_BAD_REQUEST;
- goto Done;
- }
-
- // let's compute URL and call API
- baseapi = strsep(&urlcpy2, "/");
- if (baseapi == NULL) {
- request->jresp = jsonNewMessage(AFB_FATAL, "Invalid API call plugin=[%s] url=[%s]", baseurl, url);
- request->errcode = MHD_HTTP_BAD_REQUEST;
- goto Done;
- }
-
- // build request structure
- request->connection = connection;
- request->config = session->config;
- request->url = url;
- request->prefix = strdup (baseurl);
- request->api = strdup (baseapi);
- request->plugins= session->plugins;
- // note request->handle is fed with request->context in ctxClientGet
-
-Done:
- free(urlcpy1);
- return (request);
-}
-
-// process rest API query
-PUBLIC int doRestApi(struct MHD_Connection *connection, AFB_session *session, const char* url, const char *method
- , const char *upload_data, size_t *upload_data_size, void **con_cls) {
-
- static int postcount = 0; // static counter to debug POST protocol
- json_object *errMessage;
- AFB_error status;
- struct MHD_Response *webResponse;
- const char *serialized;
- AFB_request *request = NULL;
- AFB_PostHandle *postHandle;
- AFB_PostRequest postRequest;
- int ret;
-
- // fprintf (stderr, "doRestAPI method=%s posthandle=%p\n", method, con_cls);
-
- // if post data may come in multiple calls
- if (0 == strcmp(method, MHD_HTTP_METHOD_POST)) {
- const char *encoding, *param;
- int contentlen = -1;
- postHandle = *con_cls;
-
- // This is the initial post event let's create form post structure POST data come in multiple events
- if (postHandle == NULL) {
-
- // allocate application POST processor handle to zero
- postHandle = calloc(1, sizeof (AFB_PostHandle));
- postHandle->uid = postcount++; // build a UID for DEBUG
- *con_cls = postHandle; // update context with posthandle
-
- // Let make sure we have the right encoding and a valid length
- encoding = MHD_lookup_connection_value(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_CONTENT_TYPE);
-
- // We are facing an empty post let's process it as a get
- if (encoding == NULL) {
- postHandle->type = AFB_POST_EMPTY;
- return MHD_YES;
- }
-
- // Form post is handle through a PostProcessor and call API once per form key
- if (strcasestr(encoding, FORM_CONTENT) != NULL) {
- if (verbose) fprintf(stderr, "Create doPostIterate[uid=%d posthandle=%p]\n", postHandle->uid, postHandle);
-
- request = createRequest (connection, session, url);
- if (request->jresp != NULL) goto ProcessApiCall;
- postHandle->type = AFB_POST_FORM;
- postHandle->privatebuf = (void*)request;
- postHandle->pp = MHD_create_post_processor (connection, MAX_POST_SIZE, &doPostIterate, postHandle);
-
- if (NULL == postHandle->pp) {
- fprintf(stderr,"OOPS: Internal error fail to allocate MHD_create_post_processor\n");
- free (postHandle);
- return MHD_NO;
- }
- return MHD_YES;
- }
-
- // POST json is store into a buffer and present in one piece to API
- if (strcasestr(encoding, JSON_CONTENT) != NULL) {
-
- param = MHD_lookup_connection_value(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_CONTENT_LENGTH);
- if (param) sscanf(param, "%i", &contentlen);
-
- // Because PostJson are build in RAM size is constrained
- if (contentlen > MAX_POST_SIZE) {
- errMessage = jsonNewMessage(AFB_FATAL, "Post Date to big %d > %d", contentlen, MAX_POST_SIZE);
- goto ExitOnError;
- }
-
- // Size is OK, let's allocate a buffer to hold post data
- postHandle->type = AFB_POST_JSON;
- postHandle->privatebuf = malloc((unsigned)contentlen + 1); // allocate memory for full POST data + 1 for '\0' enf of string
-
- // if (verbose) fprintf(stderr, "Create PostJson[uid=%d] Size=%d\n", postHandle->uid, contentlen);
- return MHD_YES;
-
- } else {
- // We only support Json and Form Post format
- errMessage = jsonNewMessage(AFB_FATAL, "Post Date wrong type encoding=%s != %s", encoding, JSON_CONTENT);
- goto ExitOnError;
- }
- }
-
- // This time we receive partial/all Post data. Note that even if we get all POST data. We should nevertheless
- // return MHD_YES and not process the request directly. Otherwise Libmicrohttpd is unhappy and fails with
- // 'Internal application error, closing connection'.
- if (*upload_data_size) {
-
- if (postHandle->type == AFB_POST_FORM) {
- // if (verbose) fprintf(stderr, "Processing PostForm[uid=%d]\n", postHandle->uid);
- MHD_post_process (postHandle->pp, upload_data, *upload_data_size);
- }
-
- // Process JsonPost request when buffer is completed let's call API
- if (postHandle->type == AFB_POST_JSON) {
- // if (verbose) fprintf(stderr, "Updating PostJson[uid=%d]\n", postHandle->uid);
- memcpy(&postHandle->privatebuf[postHandle->len], upload_data, *upload_data_size);
- postHandle->len = postHandle->len + *upload_data_size;
- }
-
- *upload_data_size = 0;
- return MHD_YES;
-
- } else { // we have finish with Post reception let's finish the work
-
- // Create a request structure to finalise the request
- request= createRequest (connection, session, url);
- if (request->jresp != NULL) {
- errMessage = request->jresp;
- goto ExitOnError;
- }
- postRequest.type = postHandle->type;
-
- // Postform add application context handle to request
- if (postHandle->type == AFB_POST_FORM) {
- postRequest.data = (char*) postHandle;
- request->post = &postRequest;
- }
-
- if (postHandle->type == AFB_POST_JSON) {
- // if (verbose) fprintf(stderr, "Processing PostJson[uid=%d]\n", postHandle->uid);
-
- param = MHD_lookup_connection_value(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_CONTENT_LENGTH);
- if (param) sscanf(param, "%i", &contentlen);
-
- // At this level we're may verify that we got everything and process DATA
- if (postHandle->len != contentlen) {
- errMessage = jsonNewMessage(AFB_FATAL, "Post Data Incomplete UID=%d Len %d != %d", postHandle->uid, contentlen, postHandle->len);
- goto ExitOnError;
- }
-
- // Before processing data, make sure buffer string is properly ended
- postHandle->privatebuf[postHandle->len] = '\0';
- postRequest.data = postHandle->privatebuf;
- request->post = &postRequest;
-
- // if (verbose) fprintf(stderr, "Close Post[%d] Buffer=%s\n", postHandle->uid, request->post->data);
- }
- }
- } else {
- // this is a get we only need a request
- request= createRequest (connection, session, url);
- };
-
-ProcessApiCall:
- // Request is ready let's call API without any extra handle
- status = findAndCallApi (request, NULL);
-
- serialized = json_object_to_json_string(request->jresp);
- webResponse = MHD_create_response_from_buffer(strlen(serialized), (void*) serialized, MHD_RESPMEM_MUST_COPY);
-
- // client did not pass token on URI let's use cookies
- if ((!request->restfull) && (request->context != NULL)) {
- char cookie[256];
- snprintf (cookie, sizeof (cookie), "%s-%d=%s; Path=%s; Max-Age=%d; HttpOnly", COOKIE_NAME, request->config->httpdPort, request->uuid, request->config->rootapi,request->config->cntxTimeout);
- MHD_add_response_header (webResponse, MHD_HTTP_HEADER_SET_COOKIE, cookie);
- }
-
- // if requested add an error status
- if (request->errcode != 0) ret=MHD_queue_response (connection, request->errcode, webResponse);
- else MHD_queue_response(connection, MHD_HTTP_OK, webResponse);
-
- MHD_destroy_response(webResponse);
- json_object_put(request->jresp); // decrease reference rqtcount to free the json object
- freeRequest (request);
- return MHD_YES;
-
-ExitOnError:
- freeRequest (request);
- serialized = json_object_to_json_string(errMessage);
- webResponse = MHD_create_response_from_buffer(strlen(serialized), (void*) serialized, MHD_RESPMEM_MUST_COPY);
- MHD_queue_response(connection, MHD_HTTP_BAD_REQUEST, webResponse);
- MHD_destroy_response(webResponse);
- json_object_put(errMessage); // decrease reference rqtcount to free the json object
- return MHD_YES;
-}
-
-
-// Loop on plugins. Check that they have the right type, prepare a JSON object with prefix
-STATIC AFB_plugin ** RegisterJsonPlugins(AFB_plugin **plugins) {
- int idx;
-
- for (idx = 0; plugins[idx] != NULL; idx++) {
- if (plugins[idx]->type != AFB_PLUGIN_JSON) {
- fprintf(stderr, "ERROR: AFSV plugin[%d] invalid type=%d != %d\n", idx, AFB_PLUGIN_JSON, plugins[idx]->type);
- } else {
- // some sanity controls
- if ((plugins[idx]->prefix == NULL) || (plugins[idx]->info == NULL) || (plugins[idx]->apis == NULL)) {
- if (plugins[idx]->prefix == NULL) plugins[idx]->prefix = "No URL prefix for APIs";
- if (plugins[idx]->info == NULL) plugins[idx]->info = "No Info describing plugin APIs";
- fprintf(stderr, "ERROR: plugin[%d] invalid prefix=%s info=%s", idx, plugins[idx]->prefix, plugins[idx]->info);
- return NULL;
- }
-
- if (verbose) fprintf(stderr, "Loading plugin[%d] prefix=[%s] info=%s\n", idx, plugins[idx]->prefix, plugins[idx]->info);
-
- // Prebuild plugin jtype to boost API response
- plugins[idx]->jtype = json_object_new_string(plugins[idx]->prefix);
- json_object_get(plugins[idx]->jtype); // increase reference count to make it permanent
- plugins[idx]->prefixlen = strlen(plugins[idx]->prefix);
- }
- }
- return (plugins);
-}
-
-STATIC void scanDirectory(char *dirpath, int dirfd, AFB_plugin **plugins, int *count) {
- DIR *dir;
- void *libso;
- struct dirent pluginDir, *result;
- AFB_plugin* (*pluginRegisterFct)(void);
- char pluginPath[255];
-
- // Open Directory to scan over it
- dir = fdopendir (dirfd);
- if (dir == NULL) {
- fprintf(stderr, "ERROR in scanning directory\n");
- return;
- }
- if (verbose) fprintf (stderr, "Scanning dir=[%s] for plugins\n", dirpath);
-
- for (;;) {
- readdir_r(dir, &pluginDir, &result);
- if (result == NULL) break;
-
- // Loop on any contained directory
- if ((pluginDir.d_type == DT_DIR) && (pluginDir.d_name[0] != '.')) {
- int fd = openat (dirfd, pluginDir.d_name, O_DIRECTORY);
- char newpath[255];
- strncpy (newpath, dirpath, sizeof(newpath));
- strncat (newpath, "/", sizeof(newpath));
- strncat (newpath, pluginDir.d_name, sizeof(newpath));
-
- scanDirectory (newpath, fd, plugins, count);
- close (fd);
-
- } else {
-
- // This is a file but not a plugin let's move to next directory element
- if (!strstr (pluginDir.d_name, ".so")) continue;
-
- // This is a loadable library let's check if it's a plugin
- snprintf (pluginPath, sizeof(pluginPath), "%s/%s", dirpath, pluginDir.d_name);
- libso = dlopen (pluginPath, RTLD_NOW | RTLD_LOCAL);
-
- // Load fail we ignore this .so file
- if (!libso) {
- fprintf(stderr, "[%s] is not loadable, continuing...\n", pluginDir.d_name);
- continue;
- }
-
- pluginRegisterFct = dlsym (libso, "pluginRegister");
-
- if (!pluginRegisterFct) {
- fprintf(stderr, "[%s] is not an AFB plugin, continuing...\n", pluginDir.d_name);
- continue;
- }
-
- // if max plugin is reached let's stop searching
- if (*count == AFB_MAX_PLUGINS) {
- fprintf(stderr, "[%s] is not loaded [Max Count=%d reached]\n", pluginDir.d_name, *count);
- continue;
- }
-
- if (verbose) fprintf(stderr, "[%s] is a valid AFB plugin, loading pos[%d]\n", pluginDir.d_name, *count);
- plugins[*count] = pluginRegisterFct();
- if (!plugins[*count]) {
- if (verbose) fprintf(stderr, "ERROR: plugin [%s] register function failed. continuing...\n", pluginDir.d_name);
- } else
- *count = *count +1;
- }
- }
- closedir (dir);
-}
-
-void initPlugins(AFB_session *session) {
- AFB_plugin **plugins;
-
- afbJsonType = json_object_new_string (AFB_MSG_JTYPE);
- int count = 0;
- char *dirpath;
- int dirfd;
-
- /* pre-allocate for AFB_MAX_PLUGINS plugins, we will downsize later */
- plugins = (AFB_plugin **) malloc (AFB_MAX_PLUGINS *sizeof(AFB_plugin*));
-
- // Loop on every directory passed in --plugins=xxx
- while ((dirpath = strsep(&session->config->ldpaths, ":"))) {
- // Ignore any directory we fail to open
- if ((dirfd = open(dirpath, O_DIRECTORY)) <= 0) {
- fprintf(stderr, "Invalid directory path=[%s]\n", dirpath);
- continue;
- }
- scanDirectory (dirpath, dirfd, plugins, &count);
- close (dirfd);
- }
-
- // downsize structure to effective number of loaded plugins
- plugins = (AFB_plugin **)realloc (plugins, (unsigned)(count+1)*sizeof(AFB_plugin*));
- plugins[count] = NULL;
-
- // complete plugins and save them within current sessions
- session->plugins = RegisterJsonPlugins(plugins);
- session->config->pluginCount = count;
-}
-