Add ability to import otpauth uri from clipboard

app/src/main/java/com/beemdevelopment/aegis/ui/MainActivity.java

@@ -17,6 +17,7 @@
 import android.text.Spannable;
 import android.text.SpannableStringBuilder;
 import android.text.style.StyleSpan;
+import android.util.Log;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.Menu;
@@ -63,6 +64,7 @@
 import com.beemdevelopment.aegis.ui.tasks.IconOptimizationTask;
 import com.beemdevelopment.aegis.ui.tasks.QrDecodeTask;
 import com.beemdevelopment.aegis.ui.views.EntryListView;
+import com.beemdevelopment.aegis.util.ClipboardUtils;
 import com.beemdevelopment.aegis.util.TimeUtils;
 import com.beemdevelopment.aegis.util.UUIDMap;
 import com.beemdevelopment.aegis.vault.VaultEntry;
@@ -89,7 +91,6 @@
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
-import java.util.SequencedMap;
 import java.util.Set;
 import java.util.UUID;
 import java.util.concurrent.atomic.AtomicReference;
@@ -252,7 +253,7 @@ protected void onCreate(Bundle savedInstanceState) {
         LinkedHashMap<View, Runnable> actions = new LinkedHashMap<>();
         actions.put(fabMenuLayout.findViewById(R.id.fab_menu_item_scan), this::startScanActivity);
         actions.put(fabMenuLayout.findViewById(R.id.fab_menu_item_scan_image), this::startScanImageActivity);
-        actions.put(fabMenuLayout.findViewById(R.id.fab_menu_item_enter), this::startEditEntryActivityForManual);
+        actions.put(fabMenuLayout.findViewById(R.id.fab_menu_item_enter), this::startEditEntryActivity);
 
         _fabMenuHelper = new FabMenuHelper(scrimOverlay, menuItemsContainer, fab, actions);
         _fabMenuHelper.setOnFabMenuStateChangeListener(_fabMenuBackPressHandler::setEnabled);
@@ -470,6 +471,34 @@ private void onPreferencesResult() {
         }
     }
 
+    private void startEditEntryActivity() {
+        String clip = ClipboardUtils.readText(this);
+        if (clip != null) {
+            GoogleAuthInfo parsed;
+            try {
+                parsed = GoogleAuthInfo.parseUri(clip.trim());
+                String message = getString(
+                        R.string.import_from_clipboard_message,
+                        parsed.getAccountName(),
+                        parsed.getIssuer()
+                );
+
+                Dialogs.showSecureDialog(new MaterialAlertDialogBuilder(this)
+                        .setTitle(R.string.import_from_clipboard_title)
+                        .setMessage(message)
+                        .setPositiveButton(R.string.yes, (dialog, which) -> startEditEntryActivityForNew(new VaultEntry(parsed)))
+                        .setNegativeButton(R.string.no,  (dialog, which) -> startEditEntryActivityForManual())
+                        .create());
+
+                return;
+            } catch (GoogleAuthInfoException e) {
+                Log.i("EntryActivity", "Clipboard did not contain a valid otpauth URI", e);
+            }
+        }
+
+        startEditEntryActivityForManual();
+    }
+
     private void startEditEntryActivityForNew(VaultEntry entry) {
         Intent intent = new Intent(this, EditEntryActivity.class);
         intent.putExtra("newEntry", entry);

app/src/main/java/com/beemdevelopment/aegis/util/ClipboardUtils.java

@@ -0,0 +1,34 @@
+package com.beemdevelopment.aegis.util;
+
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.content.Context;
+
+public final class ClipboardUtils {
+    public static String readText(Context context) {
+        ClipboardManager clipboard =
+                (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE);
+
+        if (clipboard == null) {
+            return null;
+        }
+
+        ClipData clip = clipboard.getPrimaryClip();
+        if (clip == null || clip.getItemCount() == 0) {
+            return null;
+        }
+
+        ClipData.Item item = clip.getItemAt(0);
+        CharSequence cs = item.coerceToText(context);
+        if (cs == null) {
+            return null;
+        }
+
+        String text = cs.toString().trim();
+        if (text.isEmpty()) {
+            return null;
+        }
+
+        return text;
+    }
+}

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

@@ -539,6 +539,10 @@
     <string name="dialog_wipe_entries_message">Your vault already contains entries. Do you want to remove these entries before importing this file?\n\n<b>In doing so, you will permanently lose access to the existing entries in the vault.</b></string>
     <string name="dialog_wipe_entries_checkbox">Wipe vault contents</string>
 
+    <string name="import_from_clipboard_title">Import from clipboard</string>
+
+    <string name="import_from_clipboard_message">We found a valid otpauth uri on your clipboard.\n\n<b>Name</b>: %1$s\n<b>Issuer</b>: %2$s\n\nDo you want to use it to prefill this entry?</string>
+
     <string name="panic_trigger_ignore_toast">Aegis received panic trigger but setting is disabled, ignoring</string>
     <string name="pref_panic_trigger_title">Delete vault on panic trigger</string>
     <string name="pref_panic_trigger_summary">Delete vault when a panic trigger is received from Ripple</string>