add linked it to view key context menu

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyActivity.java

@@ -72,6 +72,7 @@ import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.service.KeychainIntentService;
 import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
+import org.sufficientlysecure.keychain.ui.linked.LinkedIdWizard;
 import org.sufficientlysecure.keychain.ui.util.FormattingUtils;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
 import org.sufficientlysecure.keychain.ui.util.Notify;
@@ -334,6 +335,12 @@ public class ViewKeyActivity extends BaseActivity implements
                     certifyFingeprint(mDataUri);
                     return true;
                 }
+                case R.id.menu_key_view_add_linked_identity: {
+                    Intent intent = new Intent(this, LinkedIdWizard.class);
+                    intent.setData(mDataUri);
+                    startActivity(intent);
+                    return true;
+                }
             }
         } catch (ProviderHelper.NotFoundException e) {
             Notify.showNotify(this, R.string.error_key_not_found, Notify.Style.ERROR);
@@ -346,6 +353,10 @@ public class ViewKeyActivity extends BaseActivity implements
     public boolean onPrepareOptionsMenu(Menu menu) {
         MenuItem editKey = menu.findItem(R.id.menu_key_view_edit);
         editKey.setVisible(mIsSecret);
+
+        MenuItem addLinked = menu.findItem(R.id.menu_key_view_add_linked_identity);
+        addLinked.setVisible(mIsSecret);
+
         MenuItem certifyFingerprint = menu.findItem(R.id.menu_key_view_certify_fingerprint);
         certifyFingerprint.setVisible(!mIsSecret && !mIsVerified);
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdWizard.java

@@ -27,6 +27,7 @@ import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
+import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.util.Log;
 
@@ -47,7 +48,14 @@ public class LinkedIdWizard extends ActionBarActivity {
 
         try {
             Uri uri = getIntent().getData();
+            uri = KeychainContract.KeyRings.buildUnifiedKeyRingUri(uri);
             CachedPublicKeyRing ring = new ProviderHelper(this).getCachedPublicKeyRing(uri);
+            if (!ring.hasAnySecret()) {
+                Log.e(Constants.TAG, "Linked Identities can only be added to secret keys!");
+                finish();
+                return;
+            }
+
             mMasterKeyId = ring.extractOrGetMasterKeyId();
             mFingerprint = ring.getFingerprint();
         } catch (PgpKeyNotFoundException e) {

OpenKeychain/src/main/res/menu/key_view.xml

@@ -37,4 +37,9 @@
         android:visible="false"
         android:title="@string/menu_certify_fingerprint" />
 
+    <item
+        android:id="@+id/menu_key_view_add_linked_identity"
+        app:showAsAction="never"
+        android:title="@string/menu_linked_add_identity" />
+
 </menu>

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

@@ -1292,8 +1292,9 @@
     <string name="linked_id_generic_text">"This file claims ownership of the OpenPGP key with long id %2$s.\n\nCookie for proof:\n%1$s"</string>
     <string name="linked_verifying">Verifying…</string>
     <string name="linked_verify_success">Verification successful!</string>
-    <string name="linked_verify_error">Veriication error!</string>
+    <string name="linked_verify_error">Verification error!</string>
     <string name="linked_verify_pending">Not yet verified</string>
     <string name="linked_need_verify">The resource needs to be verified before you can proceed!</string>
+    <string name="menu_linked_add_identity">"Add Linked Identity"</string>
 
 </resources>