*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- * Reference:
+ *
+ * Reference:
* http://stackoverflow.com/questions/25971505/how-to-delete-element-from-hsearch
*
*/
int count; // current number of sessions
int max;
} sessions;
+
+static const char key_uuid = "uuid";
+static const char key_token = "token";
+
+// Free context [XXXX Should be protected again memory abort XXXX]
+static void ctxUuidFreeCB (AFB_clientCtx *client)
+{
+
+ AFB_plugin **plugins = client->plugins;
+ AFB_freeCtxCB freeCtxCB;
+ int idx;
+
+ // If application add a handle let's free it now
+ if (client->contexts != NULL) {
+
+ // Free client handle with a standard Free function, with app callback or ignore it
+ for (idx=0; client->plugins[idx] != NULL; idx ++) {
+ if (client->contexts[idx] != NULL) {
+ freeCtxCB = client->plugins[idx]->freeCtxCB;
+ if (freeCtxCB == NULL)
+ free (client->contexts[idx]);
+ else if (freeCtxCB != (void*)-1)
+ freeCtxCB(client->contexts[idx], plugins[idx]->handle, client->uuid);
+ }
+ }
+ }
+}
+
+// Create a new store in RAM, not that is too small it will be automatically extended
+void ctxStoreInit (int nbSession)
+{
+
+ // let's create as store as hashtable does not have any
+ sessions.store = calloc (1 + (unsigned)nbSession, sizeof(AFB_clientCtx));
+ sessions.max = nbSession;
+}
+
+static AFB_clientCtx *ctxStoreSearch (const char* uuid)
+{
+ int idx;
+ AFB_clientCtx *client;
+
+ if (uuid == NULL)
+ return NULL;
+
+ pthread_mutex_lock(&sessions.mutex);
+
+ for (idx=0; idx < sessions.max; idx++) {
+ if (sessions.store[idx] && (0 == strcmp (uuid, sessions.store[idx]->uuid))) break;
+ }
+
+ if (idx == sessions.max) client=NULL;
+ else client= sessions.store[idx];
+ pthread_mutex_unlock(&sessions.mutex);
+
+ return client;
+}
+
+static AFB_error ctxStoreDel (AFB_clientCtx *client)
+{
+ int idx;
+ int status;
+
+ if (client == NULL)
+ return AFB_FAIL;
+
+ pthread_mutex_lock(&sessions.mutex);
+
+ for (idx=0; idx < sessions.max; idx++) {
+ if (sessions.store[idx] && (0 == strcmp (client->uuid, sessions.store[idx]->uuid))) break;
+ }
+
+ if (idx == sessions.max)
+ status = AFB_FAIL;
+ else {
+ sessions.count--;
+ ctxUuidFreeCB (sessions.store[idx]);
+ sessions.store[idx]=NULL;
+ status = AFB_SUCCESS;
+ }
+
+ pthread_mutex_unlock(&sessions.mutex);
+ return status;
+}
+
+static AFB_error ctxStoreAdd (AFB_clientCtx *client)
+{
+ int idx;
+ int status;
+ if (client == NULL)
+ return AFB_FAIL;
+
+ //fprintf (stderr, "ctxStoreAdd request uuid=%s count=%d\n", client->uuid, sessions.count);
+
+ pthread_mutex_lock(&sessions.mutex);
+
+ for (idx=0; idx < sessions.max; idx++) {
+ if (NULL == sessions.store[idx]) break;
+ }
+
+ if (idx == sessions.max) status=AFB_FAIL;
+ else {
+ status=AFB_SUCCESS;
+ sessions.count ++;
+ sessions.store[idx]= client;
+ }
+
+ pthread_mutex_unlock(&sessions.mutex);
+ return status;
+}
+
+// Check if context timeout or not
+static int ctxStoreToOld (AFB_clientCtx *ctx, int timeout)
+{
+ int res;
+ time_t now = time(NULL);
+ res = (ctx->timeStamp + timeout) <= now;
+ return res;
+}
+
+// Loop on every entry and remove old context sessions.hash
+void ctxStoreGarbage (const int timeout)
+{
+ AFB_clientCtx *ctx;
+ long idx;
+
+ // Loop on Sessions Table and remove anything that is older than timeout
+ for (idx=0; idx < sessions.max; idx++) {
+ ctx=sessions.store[idx];
+ if ((ctx != NULL) && (ctxStoreToOld(ctx, timeout))) {
+ ctxStoreDel (ctx);
+ }
+ }
+}
+
+// This function will return exiting client context or newly created client context
+AFB_clientCtx *ctxClientGet (AFB_request *request, int idx)
+{
+ AFB_clientCtx *clientCtx=NULL;
+ const char *uuid;
+ uuid_t newuuid;
+
+ if (request->config->token == NULL) return NULL;
+
+ // Check if client as a context or not inside the URL
+ uuid = MHD_lookup_connection_value(request->connection, MHD_GET_ARGUMENT_KIND, key_uuid);
+
+ // if UUID in query we're restfull with no cookies otherwise check for cookie
+ if (uuid != NULL)
+ request->restfull = TRUE;
+ else {
+ char cookie[64];
+ request->restfull = FALSE;
+ snprintf(cookie, sizeof cookie, "%s-%d", COOKIE_NAME, request->config->httpdPort);
+ uuid = MHD_lookup_connection_value (request->connection, MHD_COOKIE_KIND, cookie);
+ };
+
+ // Warning when no cookie defined MHD_lookup_connection_value may return something !!!
+ if ((uuid != NULL) && (strnlen (uuid, 10) >= 10)) {
+ // search if client context exist and it not timeout let's use it
+ clientCtx = ctxStoreSearch (uuid);
+
+ if (clientCtx) {
+ if (ctxStoreToOld (clientCtx, request->config->cntxTimeout)) {
+ // this session is too old let's delete it
+ ctxStoreDel (clientCtx);
+ clientCtx = NULL;
+ } else {
+ request->context=clientCtx->contexts[idx];
+ request->handle = clientCtx->plugins[idx]->handle;
+ request->uuid= uuid;
+ return clientCtx;
+ }
+ }
+ }
+
+ // we have no session let's create one otherwise let's clean any exiting values
+ if (clientCtx == NULL) {
+ clientCtx = calloc(1, sizeof(AFB_clientCtx)); // init NULL clientContext
+ clientCtx->contexts = calloc (1, (unsigned)request->config->pluginCount * (sizeof (void*)));
+ clientCtx->plugins = request->plugins;
+ }
+
+ uuid_generate(newuuid); // create a new UUID
+ uuid_unparse_lower(newuuid, clientCtx->uuid);
+
+ // if table is full at 50% let's clean it up
+ if(sessions.count > (sessions.max / 2)) ctxStoreGarbage(request->config->cntxTimeout);
+
+ // finally add uuid into hashtable
+ if (AFB_SUCCESS != ctxStoreAdd (clientCtx)) {
+ free (clientCtx);
+ return NULL;
+ }
+
+ // if (verbose) fprintf (stderr, "ctxClientGet New uuid=[%s] token=[%s] timestamp=%d\n", clientCtx->uuid, clientCtx->token, clientCtx->timeStamp);
+ request->context = clientCtx->contexts[idx];
+ request->handle = clientCtx->plugins[idx]->handle;
+ request->uuid=clientCtx->uuid;
+ return clientCtx;
+}
+
+// Sample Generic Ping Debug API
+AFB_error ctxTokenCheck (AFB_clientCtx *clientCtx, AFB_request *request)
+{
+ const char *token;
+
+ if (clientCtx->contexts == NULL)
+ return AFB_EMPTY;
+
+ // this time have to extract token from query list
+ token = MHD_lookup_connection_value(request->connection, MHD_GET_ARGUMENT_KIND, key_token);
+
+ // if not token is providing we refuse the exchange
+ if ((token == NULL) || (clientCtx->token == NULL))
+ return AFB_FALSE;
+
+ // compare current token with previous one
+ if ((0 == strcmp (token, clientCtx->token)) && (!ctxStoreToOld (clientCtx, request->config->cntxTimeout))) {
+ return AFB_SUCCESS;
+ }
+
+ // Token is not valid let move level of assurance to zero and free attached client handle
+ return AFB_FAIL;
+}
+
+// Free Client Session Context
+AFB_error ctxTokenReset (AFB_clientCtx *clientCtx, AFB_request *request)
+{
+ if (clientCtx == NULL)
+ return AFB_EMPTY;
+ //if (verbose) fprintf (stderr, "ctxClientReset New uuid=[%s] token=[%s] timestamp=%d\n", clientCtx->uuid, clientCtx->token, clientCtx->timeStamp);
+
+ // Search for an existing client with the same UUID
+ clientCtx = ctxStoreSearch (clientCtx->uuid);
+ if (clientCtx == NULL)
+ return AFB_FALSE;
+
+ // Remove client from table
+ ctxStoreDel (clientCtx);
+
+ return AFB_SUCCESS;
+}
+
+// generate a new token
+AFB_error ctxTokenCreate (AFB_clientCtx *clientCtx, AFB_request *request)
+{
+ uuid_t newuuid;
+ const char *token;
+
+ if (clientCtx == NULL)
+ return AFB_EMPTY;
+
+ // if config->token!="" then verify that we have the right initial share secret
+ if (request->config->token[0] != '\0') {
+
+ // check for initial token secret and return if not presented
+ token = MHD_lookup_connection_value(request->connection, MHD_GET_ARGUMENT_KIND, key_token);
+ if (token == NULL)
+ return AFB_UNAUTH;
+
+ // verify that it fits with initial tokens fit
+ if (strcmp(request->config->token, token))
+ return AFB_UNAUTH;
+ }
+
+ // create a UUID as token value
+ uuid_generate(newuuid);
+ uuid_unparse_lower(newuuid, clientCtx->token);
+
+ // keep track of time for session timeout and further clean up
+ clientCtx->timeStamp=time(NULL);
+
+ // Token is also store in context but it might be convenient for plugin to access it directly
+ return AFB_SUCCESS;
+}
+
+
+// generate a new token and update client context
+AFB_error ctxTokenRefresh (AFB_clientCtx *clientCtx, AFB_request *request)
+{
+ uuid_t newuuid;
+
+ if (clientCtx == NULL)
+ return AFB_EMPTY;
+
+ // Check if the old token is valid
+ if (ctxTokenCheck (clientCtx, request) != AFB_SUCCESS)
+ return AFB_FAIL;
+
+ // Old token was valid let's regenerate a new one
+ uuid_generate(newuuid); // create a new UUID
+ uuid_unparse_lower(newuuid, clientCtx->token);
+
+ // keep track of time for session timeout and further clean up
+ clientCtx->timeStamp=time(NULL);
+
+ return AFB_SUCCESS;
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
#if defined(ALLOWS_SESSION_FILES)
#define AFB_DEFAULT_SESSION "current-session" // should be in sync with UI
// let's return only sessions.hash files
-STATIC int fileSelect (const struct dirent *entry) {
+static int fileSelect (const struct dirent *entry) {
return (strstr (entry->d_name, ".afb") != NULL);
}
-STATIC json_object *checkCardDirExit (AFB_session *session, AFB_request *request ) {
+static json_object *checkCardDirExit (AFB_session *session, AFB_request *request ) {
int sessionDir, cardDir;
// card name should be more than 3 character long !!!!
}
// Create a link toward last used sessionname within sndcard directory
-STATIC void makeSessionLink (const char *cardname, const char *sessionname) {
+static void makeSessionLink (const char *cardname, const char *sessionname) {
char linkname [256], filename [256];
int err;
// create a link to keep track of last uploaded sessionname for this card
}
// verify we can read/write in session dir
-PUBLIC AFB_error sessionCheckdir (AFB_session *session) {
+AFB_error sessionCheckdir (AFB_session *session) {
int err;
}
// create a session in current directory
-PUBLIC json_object *sessionList (AFB_session *session, AFB_request *request) {
+json_object *sessionList (AFB_session *session, AFB_request *request) {
json_object *sessionsJ, *ajgResponse;
struct stat fstat;
struct dirent **namelist;
}
// Load Json session object from disk
-PUBLIC json_object *sessionFromDisk (AFB_session *session, AFB_request *request, char *name) {
+json_object *sessionFromDisk (AFB_session *session, AFB_request *request, char *name) {
json_object *jsonSession, *jtype, *response;
const char *ajglabel;
char filename [256];
}
// push Json session object to disk
-PUBLIC json_object * sessionToDisk (AFB_session *session, AFB_request *request, char *name, json_object *jsonSession) {
+json_object * sessionToDisk (AFB_session *session, AFB_request *request, char *name, json_object *jsonSession) {
char filename [256];
time_t rawtime;
struct tm * timeinfo;
}
#endif
-// Free context [XXXX Should be protected again memory abort XXXX]
-STATIC void ctxUuidFreeCB (AFB_clientCtx *client) {
-
- AFB_plugin **plugins = client->plugins;
- AFB_freeCtxCB freeCtxCB;
- int idx;
-
- // If application add a handle let's free it now
- if (client->contexts != NULL) {
-
- // Free client handle with a standard Free function, with app callback or ignore it
- for (idx=0; client->plugins[idx] != NULL; idx ++) {
- if (client->contexts[idx] != NULL) {
- freeCtxCB = client->plugins[idx]->freeCtxCB;
- if (freeCtxCB == NULL) free (client->contexts[idx]);
- else if (freeCtxCB != (void*)-1) freeCtxCB(client->contexts[idx], plugins[idx]->handle, client->uuid);
- }
- }
- }
-}
-
-// Create a new store in RAM, not that is too small it will be automatically extended
-PUBLIC void ctxStoreInit (int nbSession) {
-
- // let's create as store as hashtable does not have any
- sessions.store = calloc (1 + (unsigned)nbSession, sizeof(AFB_clientCtx));
- sessions.max = nbSession;
-}
-
-STATIC AFB_clientCtx *ctxStoreSearch (const char* uuid) {
- int idx;
- AFB_clientCtx *client;
-
- if (uuid == NULL) return NULL;
-
- pthread_mutex_lock(&sessions.mutex);
-
- for (idx=0; idx < sessions.max; idx++) {
- if (sessions.store[idx] && (0 == strcmp (uuid, sessions.store[idx]->uuid))) break;
- }
-
- if (idx == sessions.max) client=NULL;
- else client= sessions.store[idx];
- pthread_mutex_unlock(&sessions.mutex);
-
- return (client);
-}
-
-
-STATIC AFB_error ctxStoreDel (AFB_clientCtx *client) {
- int idx;
- int status;
- if (client == NULL) return (AFB_FAIL);
-
- pthread_mutex_lock(&sessions.mutex);
-
- for (idx=0; idx < sessions.max; idx++) {
- if (sessions.store[idx] && (0 == strcmp (client->uuid, sessions.store[idx]->uuid))) break;
- }
-
- if (idx == sessions.max) status=AFB_FAIL;
- else {
- sessions.count --;
- ctxUuidFreeCB (sessions.store[idx]);
- sessions.store[idx]=NULL;
- status=AFB_SUCCESS;
- }
-
- pthread_mutex_unlock(&sessions.mutex);
- return (status);
-}
-
-STATIC AFB_error ctxStoreAdd (AFB_clientCtx *client) {
- int idx;
- int status;
- if (client == NULL) return (AFB_FAIL);
-
- //fprintf (stderr, "ctxStoreAdd request uuid=%s count=%d\n", client->uuid, sessions.count);
-
- pthread_mutex_lock(&sessions.mutex);
-
- for (idx=0; idx < sessions.max; idx++) {
- if (NULL == sessions.store[idx]) break;
- }
-
- if (idx == sessions.max) status=AFB_FAIL;
- else {
- status=AFB_SUCCESS;
- sessions.count ++;
- sessions.store[idx]= client;
- }
-
- pthread_mutex_unlock(&sessions.mutex);
- return (status);
-}
-
-// Check if context timeout or not
-STATIC int ctxStoreToOld (AFB_clientCtx *ctx, int timeout) {
- int res;
- time_t now = time(NULL);
- res = ((ctx->timeStamp + timeout) <= now);
- return (res);
-}
-
-// Loop on every entry and remove old context sessions.hash
-PUBLIC void ctxStoreGarbage (const int timeout) {
- AFB_clientCtx *ctx;
- long idx;
-
- // Loop on Sessions Table and remove anything that is older than timeout
- for (idx=0; idx < sessions.max; idx++) {
- ctx=sessions.store[idx];
- if ((ctx != NULL) && (ctxStoreToOld(ctx, timeout))) {
- ctxStoreDel (ctx);
- }
- }
-}
-
-// This function will return exiting client context or newly created client context
-PUBLIC AFB_clientCtx *ctxClientGet (AFB_request *request, int idx) {
- AFB_clientCtx *clientCtx=NULL;
- const char *uuid;
- uuid_t newuuid;
-
- if (request->config->token == NULL) return NULL;
-
- // Check if client as a context or not inside the URL
- uuid = MHD_lookup_connection_value(request->connection, MHD_GET_ARGUMENT_KIND, "uuid");
-
- // if UUID in query we're restfull with no cookies otherwise check for cookie
- if (uuid != NULL) request->restfull = TRUE;
- else {
- char cookie[64];
- request->restfull = FALSE;
- snprintf(cookie, sizeof cookie, "%s-%d", COOKIE_NAME, request->config->httpdPort);
- uuid = MHD_lookup_connection_value (request->connection, MHD_COOKIE_KIND, cookie);
- };
-
- // Warning when no cookie defined MHD_lookup_connection_value may return something !!!
- if ((uuid != NULL) && (strnlen (uuid, 10) >= 10)) {
- // search if client context exist and it not timeout let's use it
- clientCtx = ctxStoreSearch (uuid);
-
- if (clientCtx) {
- if (ctxStoreToOld (clientCtx, request->config->cntxTimeout)) {
- // this session is too old let's delete it
- ctxStoreDel (clientCtx);
- clientCtx=NULL;
- } else {
- request->context=clientCtx->contexts[idx];
- request->handle = clientCtx->plugins[idx]->handle;
- request->uuid= uuid;
- return (clientCtx);
- }
- }
- }
-
- // we have no session let's create one otherwise let's clean any exiting values
- if (clientCtx == NULL) {
- clientCtx = calloc(1, sizeof(AFB_clientCtx)); // init NULL clientContext
- clientCtx->contexts = calloc (1, (unsigned)request->config->pluginCount * (sizeof (void*)));
- clientCtx->plugins = request->plugins;
- }
-
- uuid_generate(newuuid); // create a new UUID
- uuid_unparse_lower(newuuid, clientCtx->uuid);
-
- // if table is full at 50% let's clean it up
- if(sessions.count > (sessions.max / 2)) ctxStoreGarbage(request->config->cntxTimeout);
-
- // finally add uuid into hashtable
- if (AFB_SUCCESS != ctxStoreAdd (clientCtx)) {
- free (clientCtx);
- return(NULL);
- }
-
- // if (verbose) fprintf (stderr, "ctxClientGet New uuid=[%s] token=[%s] timestamp=%d\n", clientCtx->uuid, clientCtx->token, clientCtx->timeStamp);
- request->context = clientCtx->contexts[idx];
- request->handle = clientCtx->plugins[idx]->handle;
- request->uuid=clientCtx->uuid;
- return(clientCtx);
-}
-
-// Sample Generic Ping Debug API
-PUBLIC AFB_error ctxTokenCheck (AFB_clientCtx *clientCtx, AFB_request *request) {
- const char *token;
-
- if (clientCtx->contexts == NULL) return AFB_EMPTY;
-
- // this time have to extract token from query list
- token = MHD_lookup_connection_value(request->connection, MHD_GET_ARGUMENT_KIND, "token");
-
- // if not token is providing we refuse the exchange
- if ((token == NULL) || (clientCtx->token == NULL)) return (AFB_FALSE);
-
- // compare current token with previous one
- if ((0 == strcmp (token, clientCtx->token)) && (!ctxStoreToOld (clientCtx, request->config->cntxTimeout))) {
- return (AFB_SUCCESS);
- }
-
- // Token is not valid let move level of assurance to zero and free attached client handle
- return (AFB_FAIL);
-}
-
-// Free Client Session Context
-PUBLIC AFB_error ctxTokenReset (AFB_clientCtx *clientCtx, AFB_request *request) {
-
- if (clientCtx == NULL) return AFB_EMPTY;
- //if (verbose) fprintf (stderr, "ctxClientReset New uuid=[%s] token=[%s] timestamp=%d\n", clientCtx->uuid, clientCtx->token, clientCtx->timeStamp);
-
- // Search for an existing client with the same UUID
- clientCtx = ctxStoreSearch (clientCtx->uuid);
- if (clientCtx == NULL) return AFB_FALSE;
-
- // Remove client from table
- ctxStoreDel (clientCtx);
-
- return (AFB_SUCCESS);
-}
-
-// generate a new token
-PUBLIC AFB_error ctxTokenCreate (AFB_clientCtx *clientCtx, AFB_request *request) {
- uuid_t newuuid;
- const char *token;
-
- if (clientCtx == NULL) return AFB_EMPTY;
-
- // if config->token!="" then verify that we have the right initial share secret
- if (request->config->token[0] != '\0') {
-
- // check for initial token secret and return if not presented
- token = MHD_lookup_connection_value(request->connection, MHD_GET_ARGUMENT_KIND, "token");
- if (token == NULL) return AFB_UNAUTH;
-
- // verify that it fits with initial tokens fit
- if (strcmp(request->config->token, token)) return AFB_UNAUTH;
- }
-
- // create a UUID as token value
- uuid_generate(newuuid);
- uuid_unparse_lower(newuuid, clientCtx->token);
-
- // keep track of time for session timeout and further clean up
- clientCtx->timeStamp=time(NULL);
-
- // Token is also store in context but it might be convenient for plugin to access it directly
- return (AFB_SUCCESS);
-}
-
-
-// generate a new token and update client context
-PUBLIC AFB_error ctxTokenRefresh (AFB_clientCtx *clientCtx, AFB_request *request) {
- uuid_t newuuid;
-
- if (clientCtx == NULL) return AFB_EMPTY;
-
- // Check if the old token is valid
- if (ctxTokenCheck (clientCtx, request) != AFB_SUCCESS) return (AFB_FAIL);
-
- // Old token was valid let's regenerate a new one
- uuid_generate(newuuid); // create a new UUID
- uuid_unparse_lower(newuuid, clientCtx->token);
-
- // keep track of time for session timeout and further clean up
- clientCtx->timeStamp=time(NULL);
-
- return (AFB_SUCCESS);
-
-}
-
Code Review / src / app-framework-binder.git / commitdiff