update custom repo impl

Signed-off-by: androidacy-user <opensource@androidacy.com>

app/src/main/java/com/fox2code/mmm/MainActivity.java

@@ -114,12 +114,6 @@ public class MainActivity extends FoxActivity implements SwipeRefreshLayout.OnRe
         BackgroundUpdateChecker.onMainActivityCreate(this);
         super.onCreate(savedInstanceState);
         // log all shared preferences that are present
-        // first, get every shared preference
-        Map<String, ?> allPrefs = MainApplication.getPreferences("mmm").getAll();
-        // then, log them
-        for (Map.Entry<String, ?> entry : allPrefs.entrySet()) {
-            Timber.d("Shared preference: %s = %s", entry.getKey(), entry.getValue());
-        }
         if (!isOfficial) {
             Timber.w("You may be running an untrusted build.");
             // Show a toast to warn the user

app/src/main/java/com/fox2code/mmm/androidacy/AndroidacyWebAPI.java

@@ -35,7 +35,7 @@ import java.nio.charset.StandardCharsets;
 
 import timber.log.Timber;
 
-@SuppressWarnings("SameReturnValue")
+@SuppressWarnings({"unused", "SameReturnValue"})
 @Keep
 public class AndroidacyWebAPI {
     public static final int COMPAT_UNSUPPORTED = 0;

app/src/main/java/com/fox2code/mmm/settings/SettingsActivity.java

@@ -1169,7 +1169,22 @@ public class SettingsActivity extends FoxActivity implements LanguageActivity {
                     input.setValidator(new AutoCompleteTextView.Validator() {
                         @Override
                         public boolean isValid(CharSequence charSequence) {
-                            return customRepoManager.canAddRepo(charSequence.toString());
+                            // show error if string is empty, does not start with https://, or contains spaces
+                            if (charSequence.toString().isEmpty()) {
+                                input.setError(getString(R.string.empty_field));
+                                return false;
+                            } else if (!charSequence.toString().matches("^https://.*")) {
+                                input.setError(getString(R.string.invalid_repo_url));
+                                return false;
+                            } else if (charSequence.toString().contains(" ")) {
+                                input.setError(getString(R.string.invalid_repo_url));
+                                return false;
+                            } else if (!customRepoManager.canAddRepo(charSequence.toString())) {
+                                input.setError(getString(R.string.repo_already_added));
+                                return false;
+                            } else {
+                                return true;
+                            }
                         }
 
                         @Override

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

@@ -394,4 +394,6 @@
     <string name="setup_crash_reporting_pii_summary"> This may include device identifiers and IP addresses. No data will be used for any other purpose besides analyzing crashes and improving performance.</string>
     <string name="error_creating_cookie_database">Error accessing WebView. Functionality may be impacted.</string>
     <string name="setup_scroll_down">To enable the finish button, please scroll down and view all the options.</string>
+    <string name="empty_field">URL is required</string>
+    <string name="repo_already_added">Repo already exists.</string>
 </resources>