Added app password hint

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

@@ -66,6 +66,7 @@ public class EmailProvider {
     public int keepalive;
     public boolean partial;
     public boolean useip;
+    public boolean appPassword;
     public String link;
     public Server imap = new Server();
     public Server smtp = new Server();
@@ -127,6 +128,7 @@ public class EmailProvider {
                         provider.keepalive = xml.getAttributeIntValue(null, "keepalive", 0);
                         provider.partial = xml.getAttributeBooleanValue(null, "partial", true);
                         provider.useip = xml.getAttributeBooleanValue(null, "useip", true);
+                        provider.appPassword = xml.getAttributeBooleanValue(null, "appPassword", false);
                         provider.link = xml.getAttributeValue(null, "link");
                         provider.type = xml.getAttributeValue(null, "type");
                         String user = xml.getAttributeValue(null, "user");

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

@@ -262,6 +262,7 @@ public class FragmentQuickSetup extends FragmentBase {
                     throw new IllegalArgumentException(context.getString(R.string.title_no_password));
 
                 EmailProvider provider = EmailProvider.fromEmail(context, email, EmailProvider.Discover.ALL);
+                args.putBoolean("appPassword", provider.appPassword);
 
                 if (provider.link != null)
                     args.putString("link", provider.link);
@@ -404,9 +405,13 @@ public class FragmentQuickSetup extends FragmentBase {
             protected void onException(final Bundle args, Throwable ex) {
                 Log.e(ex);
 
-                if (ex instanceof AuthenticationFailedException)
-                    tvErrorHint.setText(R.string.title_setup_no_auth_hint);
-                else
+                if (ex instanceof AuthenticationFailedException) {
+                    boolean appPassword = args.getBoolean("appPassword");
+                    String message = getString(R.string.title_setup_no_auth_hint);
+                    if (appPassword)
+                        message += " - " + getString(R.string.title_setup_app_password_hint);
+                    tvErrorHint.setText(message);
+                } else
                     tvErrorHint.setText(R.string.title_setup_no_settings_hint);
 
                 if (ex instanceof IllegalArgumentException || ex instanceof UnknownHostException) {

app/src/main/res/values/strings.xml

@@ -164,6 +164,7 @@
     <string name="title_setup_no_settings">No settings found for domain \'%1$s\'</string>
     <string name="title_setup_no_settings_hint">Please try setting up an account and identity in setup steps 1 and 2 using the settings provided by your email provider</string>
     <string name="title_setup_no_auth_hint">Please double check your email address and password and make sure external access (IMAP/SMTP) is enabled for your account</string>
+    <string name="title_setup_app_password_hint">This provider requires an app password instead of the account password</string>
     <string name="title_setup_no_system_folders">Inbox or draft folder not found</string>
     <string name="title_setup_quick_success">An account and an identity have successfully been added</string>
     <string name="title_setup_quick_failed">You can try to configure an account and an identity below too</string>

app/src/main/res/xml/providers.xml

@@ -59,6 +59,7 @@
     <!-- no IMAP IDLE -->
     <provider
         name="Yahoo!"
+        appPassword="true"
         domain="yahoo.*"
         id="yahoo"
         link="https://github.com/M66B/FairEmail/blob/master/FAQ.md#user-content-faq88">