Support for SMTP authentication methods that are not announced by the server.

- Added AUTOMATIC as a new authentication method that will automatically choose the best authentication method (basically old behavior with CRAM_MD5). All other options will now enforce the selected authentication method.
- Added LOGIN as selectable option.
- Cleaned up code so strings to the different authentication methods are only defined once.

src/com/fsck/k9/activity/setup/AccountSetupOutgoing.java

@@ -16,6 +16,8 @@ import android.widget.CompoundButton.OnCheckedChangeListener;
 import com.fsck.k9.*;
 import com.fsck.k9.activity.K9Activity;
 import com.fsck.k9.helper.Utility;
+import com.fsck.k9.mail.transport.SmtpTransport;
+
 import java.io.UnsupportedEncodingException;
 import java.net.URI;
 import java.net.URISyntaxException;
@@ -45,10 +47,13 @@ public class AccountSetupOutgoing extends K9Activity implements OnClickListener,
         "webdav", "webdav+ssl", "webdav+ssl+", "webdav+tls", "webdav+tls+"
     };
     */
-
     private static final String authTypes[] = {
-        "PLAIN", "CRAM_MD5"
+        SmtpTransport.AUTH_AUTOMATIC,
+        SmtpTransport.AUTH_LOGIN,
+        SmtpTransport.AUTH_PLAIN,
+        SmtpTransport.AUTH_CRAM_MD5,
     };
+    
     private EditText mUsernameView;
     private EditText mPasswordView;
     private EditText mServerView;
@@ -117,14 +122,10 @@ public class AccountSetupOutgoing extends K9Activity implements OnClickListener,
             new SpinnerOption(4, getString(R.string.account_setup_incoming_security_tls_label)),
         };
 
-        // This needs to be kept in sync with the list at the top of the file.
+        SpinnerOption authTypeSpinnerOptions[] = new SpinnerOption[authTypes.length];
-        // that makes me somewhat unhappy
+        for (int i = 0; i < authTypes.length; i++) {
-        SpinnerOption authTypeSpinnerOptions[] = {
+            authTypeSpinnerOptions[i] = new SpinnerOption(i, authTypes[i]);
-            new SpinnerOption(0, "PLAIN"),
+        }
-            new SpinnerOption(1, "CRAM_MD5")
-        };
-
-
 
         ArrayAdapter<SpinnerOption> securityTypesAdapter = new ArrayAdapter<SpinnerOption>(this,
                 android.R.layout.simple_spinner_item, securityTypes);

src/com/fsck/k9/mail/transport/SmtpTransport.java

@@ -39,6 +39,14 @@ public class SmtpTransport extends Transport {
 
     public static final int CONNECTION_SECURITY_SSL_OPTIONAL = 4;
 
+    public static final String AUTH_PLAIN = "PLAIN";
+
+    public static final String AUTH_CRAM_MD5 = "CRAM_MD5";
+
+    public static final String AUTH_LOGIN = "LOGIN";
+
+    public static final String AUTH_AUTOMATIC = "AUTOMATIC";
+
     String mHost;
 
     int mPort;
@@ -227,6 +235,12 @@ public class SmtpTransport extends Transport {
             boolean authLoginSupported = false;
             boolean authPlainSupported = false;
             boolean authCramMD5Supported = false;
+            if (mAuthType != null) {
+                authLoginSupported = mAuthType.equals(AUTH_LOGIN);
+                authPlainSupported = mAuthType.equals(AUTH_PLAIN);
+                authCramMD5Supported = mAuthType.equals(AUTH_CRAM_MD5);
+            }
+            if (mAuthType == null || mAuthType.equals(AUTH_AUTOMATIC)) {
                 for (String result : results) {
                     if (result.matches(".*AUTH.*LOGIN.*$")) {
                         authLoginSupported = true;
@@ -234,7 +248,7 @@ public class SmtpTransport extends Transport {
                     if (result.matches(".*AUTH.*PLAIN.*$")) {
                         authPlainSupported = true;
                     }
-                if (result.matches(".*AUTH.*CRAM-MD5.*$") && mAuthType != null && mAuthType.equals("CRAM_MD5")) {
+                    if (result.matches(".*AUTH.*CRAM-MD5.*$")) {
                         authCramMD5Supported = true;
                     }
                     if (result.matches(".*SIZE \\d*$")) {
@@ -247,6 +261,7 @@ public class SmtpTransport extends Transport {
                         }
                     }
                 }
+            }
 
             if (mUsername != null && mUsername.length() > 0 && mPassword != null
                     && mPassword.length() > 0) {