zdm/envoy
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Handle handshake rejections on invalid token, reuse not expired tokens

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This commit is contained in:
Kai S. K. Engelbart
2020-09-19 13:33:18 +02:00
parent f21d077522
commit 3e594c1fbd
2 changed files with 26 additions and 8 deletions
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18
client/src/main/java/envoy/client/ui/Startup.java
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@ -93,8 +93,9 @@ public final class Startup extends Application {
logger.info("Attempting authentication with token...");
localDB.initializeUserStorage();
localDB.loadUserData();
performHandshake(LoginCredentials.loginWithToken(localDB.getUser().getName(), localDB.getAuthToken(), VERSION, localDB.getLastSync()));
// TODO: handle unsuccessful handshake
if (!performHandshake(
LoginCredentials.loginWithToken(localDB.getUser().getName(), localDB.getAuthToken(), VERSION, localDB.getLastSync())))
sceneContext.load(SceneInfo.LOGIN_SCENE);
} else {
// Load login scene
@ -106,9 +107,10 @@ public final class Startup extends Application {
* Tries to perform a Handshake with the server.
*
* @param credentials the credentials to use for the handshake
* @return whether the handshake was successful or offline mode could be entered
* @since Envoy Client v0.2-beta
*/
public static void performHandshake(LoginCredentials credentials) {
public static boolean performHandshake(LoginCredentials credentials) {
final var cacheMap = new CacheMap();
cacheMap.put(Message.class, new Cache<Message>());
cacheMap.put(GroupMessage.class, new Cache<GroupMessage>());
@ -120,10 +122,13 @@ public final class Startup extends Application {
if (client.isOnline()) {
loadChatScene();
client.initReceiver(localDB, cacheMap);
return true;
} else {
return false;
}
} catch (IOException | InterruptedException | TimeoutException e) {
logger.log(Level.INFO, "Could not connect to server. Entering offline mode...");
attemptOfflineMode(credentials.getIdentifier());
return attemptOfflineMode(credentials.getIdentifier());
}
}
@ -132,9 +137,10 @@ public final class Startup extends Application {
* for a given user.
*
* @param identifier the identifier of the user - currently his username
* @return whether the offline mode could be entered
* @since Envoy Client v0.2-beta
*/
public static void attemptOfflineMode(String identifier) {
public static boolean attemptOfflineMode(String identifier) {
try {
// Try entering offline mode
localDB.loadUsers();
@ -142,10 +148,12 @@ public final class Startup extends Application {
if (clientUser == null) throw new EnvoyException("Could not enter offline mode: user name unknown");
client.setSender(clientUser);
loadChatScene();
return true;
} catch (final Exception e) {
new Alert(AlertType.ERROR, "Client error: " + e).showAndWait();
logger.log(Level.SEVERE, "Offline mode could not be loaded: ", e);
System.exit(1);
return false;
}
}