Gmail refresh refactoring

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

@@ -776,7 +776,7 @@ public class ActivitySetup extends ActivityBase implements FragmentManager.OnBac
                         if (account.auth_type == EmailService.AUTH_TYPE_GMAIL) {
                             AccountManager am = AccountManager.get(context);
                             boolean found = false;
-                            for (Account google : am.getAccountsByType("com.google"))
+                            for (Account google : am.getAccountsByType(EmailService.TYPE_GOOGLE))
                                 if (account.user.equals(google.name)) {
                                     found = true;
                                     break;

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

@@ -3,6 +3,7 @@ package eu.faircode.email;
 import android.accounts.Account;
 import android.accounts.AccountManager;
 import android.accounts.AuthenticatorException;
+import android.accounts.OperationCanceledException;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.security.KeyChain;
@@ -104,6 +105,8 @@ public class EmailService implements AutoCloseable {
 
     private ExecutorService executor = Helper.getBackgroundExecutor(0, "mail");
 
+    static final String TYPE_GOOGLE = "com.google";
+
     static final int AUTH_TYPE_PASSWORD = 1;
     static final int AUTH_TYPE_GMAIL = 2;
     static final int AUTH_TYPE_OAUTH = 3;
@@ -347,22 +350,9 @@ public class EmailService implements AutoCloseable {
             // Refresh token
             if (auth == AUTH_TYPE_GMAIL)
                 try {
-                    String type = "com.google";
-                    AccountManager am = AccountManager.get(context);
-                    Account[] accounts = am.getAccountsByType(type);
-                    for (Account account : accounts)
-                        if (user.equals(account.name)) {
-                            Log.i("Refreshing token user=" + user);
-                            am.invalidateAuthToken(type, password);
-                            String token = am.blockingGetAuthToken(account, getAuthTokenType(type), true);
-                            if (token == null)
-                                throw new AuthenticatorException("No token on refresh for " + user);
-
+                    String token = GmailRefresh(context, user, password);
                     connect(host, port, auth, user, token, factory);
                     return token;
-                        }
-
-                    throw new AuthenticatorException("Account not found for " + user);
                 } catch (Exception ex1) {
                     Log.e(ex1);
                     throw new AuthenticationFailedException(ex.getMessage(), ex1);
@@ -619,6 +609,24 @@ public class EmailService implements AutoCloseable {
         AuthorizationException error;
     }
 
+    private static String GmailRefresh(Context context, String user, String password) throws AuthenticatorException, OperationCanceledException, IOException {
+        AccountManager am = AccountManager.get(context);
+        Account[] accounts = am.getAccountsByType(TYPE_GOOGLE);
+        for (Account account : accounts)
+            if (user.equals(account.name)) {
+                Log.i("Refreshing token user=" + user);
+                if (password != null)
+                    am.invalidateAuthToken(TYPE_GOOGLE, password);
+                String token = am.blockingGetAuthToken(account, getAuthTokenType(TYPE_GOOGLE), true);
+                if (token == null)
+                    throw new AuthenticatorException("No token on refresh for " + user);
+
+                return token;
+            }
+
+        throw new AuthenticatorException("Account not found for " + user);
+    }
+
     private static AuthState OAuthRefresh(Context context, String id, String json) throws MessagingException {
         try {
             AuthState authState = AuthState.jsonDeserialize(json);

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

@@ -1334,12 +1334,12 @@ public class FragmentAccount extends FragmentBase {
                     return null;
 
                 AccountManager am = AccountManager.get(context);
-                Account[] accounts = am.getAccountsByType("com.google");
+                Account[] accounts = am.getAccountsByType(EmailService.TYPE_GOOGLE);
                 for (Account google : accounts)
                     if (account.user.equals(google.name))
                         return am.blockingGetAuthToken(
                                 google,
-                                EmailService.getAuthTokenType("com.google"),
+                                EmailService.getAuthTokenType(EmailService.TYPE_GOOGLE),
                                 true);
 
                 return null;

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

@@ -987,12 +987,12 @@ public class FragmentIdentity extends FragmentBase {
                     return null;
 
                 AccountManager am = AccountManager.get(context);
-                Account[] accounts = am.getAccountsByType("com.google");
+                Account[] accounts = am.getAccountsByType(EmailService.TYPE_GOOGLE);
                 for (Account google : accounts)
                     if (identity.user.equals(google.name))
                         return am.blockingGetAuthToken(
                                 google,
-                                EmailService.getAuthTokenType("com.google"),
+                                EmailService.getAuthTokenType(EmailService.TYPE_GOOGLE),
                                 true);
 
                 return null;