Revert "Pre expire tokens"

This reverts commit 0a417725eb.

app/src/main/java/eu/faircode/email/EmailService.java

@@ -306,9 +306,8 @@ public class EmailService implements AutoCloseable {
         this.listener = listener;
     }
 
-    @NonNull
-    public ServiceAuthenticator connect(EntityAccount account) throws MessagingException {
-        return connect(
+    public void connect(EntityAccount account) throws MessagingException {
+        connect(
                 account.host, account.port,
                 account.auth_type, account.provider,
                 account.user, account.password,
@@ -324,9 +323,8 @@ public class EmailService implements AutoCloseable {
                 account.certificate_alias, account.fingerprint);
     }
 
-    @NonNull
-    public ServiceAuthenticator connect(EntityIdentity identity) throws MessagingException {
-        return connect(
+    public void connect(EntityIdentity identity) throws MessagingException {
+        connect(
                 identity.host, identity.port,
                 identity.auth_type, identity.provider,
                 identity.user, identity.password,
@@ -342,16 +340,14 @@ public class EmailService implements AutoCloseable {
                 identity.certificate_alias, identity.fingerprint);
     }
 
-    @NonNull
-    public ServiceAuthenticator connect(
+    public void connect(
             String host, int port,
             int auth, String provider, String user, String password,
             String certificate, String fingerprint) throws MessagingException {
-        return connect(host, port, auth, provider, user, password, null, certificate, fingerprint);
+        connect(host, port, auth, provider, user, password, null, certificate, fingerprint);
     }
 
-    @NonNull
-    private ServiceAuthenticator connect(
+    private void connect(
             String host, int port,
             int auth, String provider, String user, String password,
             ServiceAuthenticator.IAuthenticated intf,
@@ -395,13 +391,11 @@ public class EmailService implements AutoCloseable {
                 properties.put("mail." + protocol + ".yahoo.guid", "FAIRMAIL_V1");
 
             connect(host, port, auth, user, authenticator, factory);
-            return authenticator;
         } catch (AuthenticationFailedException ex) {
             if (auth == AUTH_TYPE_GMAIL || auth == AUTH_TYPE_OAUTH) {
                 try {
                     authenticator.refreshToken(true);
                     connect(host, port, auth, user, authenticator, factory);
-                    return authenticator;
                 } catch (Exception ex1) {
                     Log.e(ex1);
                     throw new AuthenticationFailedException(

app/src/main/java/eu/faircode/email/ServiceAuthenticator.java

@@ -84,8 +84,7 @@ public class ServiceAuthenticator extends Authenticator {
         return new PasswordAuthentication(user, token);
     }
 
-    String refreshToken(boolean expire)
-            throws AuthenticatorException, OperationCanceledException, IOException, JSONException, MessagingException {
+    String refreshToken(boolean expire) throws AuthenticatorException, OperationCanceledException, IOException, JSONException, MessagingException {
         if (auth == AUTH_TYPE_GMAIL) {
             GmailState authState = GmailState.jsonDeserialize(password);
             authState.refresh(context, user, expire);
@@ -120,34 +119,6 @@ public class ServiceAuthenticator extends Authenticator {
             return password;
     }
 
-    boolean isTokenValid(int minValidity) {
-        Long expiration = null;
-        long validUntil = new Date().getTime() +
-                Math.round(minValidity * 60 * 1000L * 1.1f);
-
-        try {
-            if (auth == AUTH_TYPE_GMAIL) {
-                GmailState authState = GmailState.jsonDeserialize(password);
-                expiration = authState.getAccessTokenExpirationTime();
-            } else if (auth == AUTH_TYPE_OAUTH) {
-                AuthState authState = AuthState.jsonDeserialize(password);
-                expiration = authState.getAccessTokenExpirationTime();
-            }
-        } catch (JSONException ex) {
-            Log.e(ex);
-        }
-
-        if (expiration != null && expiration < validUntil) {
-            EntityLog.log(context, user + " token" +
-                    " expiration=" + new Date(expiration) +
-                    " valid until" + new Date(validUntil) +
-                    " min valid=" + minValidity + "m");
-            return false;
-        }
-
-        return true;
-    }
-
     interface IAuthenticated {
         void onPasswordChanged(String newPassword);
     }

app/src/main/java/eu/faircode/email/ServiceSynchronize.java

@@ -1268,9 +1268,8 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
                     db.folder().setFolderStates(account.id, null);
                     db.account().setAccountState(account.id, "connecting");
 
-                    ServiceAuthenticator authenticator;
                     try {
-                        authenticator = iservice.connect(account);
+                        iservice.connect(account);
                     } catch (Throwable ex) {
                         // Immediately report auth errors
                         if (ex instanceof AuthenticationFailedException) {
@@ -1859,9 +1858,6 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
                                         "Unrecoverable",
                                         new Exception(state.getUnrecoverable()));
 
-                            if (!authenticator.isTokenValid(account.poll_interval))
-                                throw new StoreClosedException(iservice.getStore(), "Token invalidation");
-
                             // Sends store NOOP
                             if (EmailService.SEPARATE_STORE_CONNECTION) {
                                 EntityLog.log(this, account.name + " checking store" +