feat(invite-code): register scheme for `obfsvpnintro`

4 files changed, 84 insertions, 2 deletions

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index cc876ecc..08433778 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -39,6 +39,21 @@
             android:screenOrientation="portrait"
             android:exported="false" />
 
+        <activity-alias
+            android:exported="true"
+            android:name=".InviteCodeActivity"
+            android:targetActivity=".providersetup.activities.SetupActivity">
+
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data android:scheme="obfsvpnintro" />
+            </intent-filter>
+        </activity-alias>
+
         <service
             android:name="de.blinkt.openvpn.core.OpenVPNService"
             android:exported="false"
diff --git a/app/src/main/java/se/leap/bitmaskclient/base/models/Provider.java b/app/src/main/java/se/leap/bitmaskclient/base/models/Provider.java
index bf1e6b94..487134d4 100644
--- a/app/src/main/java/se/leap/bitmaskclient/base/models/Provider.java
+++ b/app/src/main/java/se/leap/bitmaskclient/base/models/Provider.java
@@ -751,6 +751,10 @@ public final class Provider implements Parcelable {
         return introducer != null;
     }
 
+    public Introducer getIntroducer() {
+        return introducer;
+    }
+
     /**
      * resets everything except the main url, the providerIp and the geoip
      * service url (currently preseeded)
diff --git a/app/src/main/java/se/leap/bitmaskclient/providersetup/activities/SetupActivity.java b/app/src/main/java/se/leap/bitmaskclient/providersetup/activities/SetupActivity.java
index 9284edc9..75d2f29e 100644
--- a/app/src/main/java/se/leap/bitmaskclient/providersetup/activities/SetupActivity.java
+++ b/app/src/main/java/se/leap/bitmaskclient/providersetup/activities/SetupActivity.java
@@ -8,7 +8,7 @@ import static se.leap.bitmaskclient.base.utils.BuildConfigHelper.isDefaultBitmas
 import static se.leap.bitmaskclient.base.utils.PreferenceHelper.deleteProviderDetailsFromPreferences;
 import static se.leap.bitmaskclient.providersetup.fragments.SetupFragmentFactory.CIRCUMVENTION_SETUP_FRAGMENT;
 import static se.leap.bitmaskclient.providersetup.fragments.SetupFragmentFactory.CONFIGURE_PROVIDER_FRAGMENT;
-import static se.leap.bitmaskclient.providersetup.fragments.viewmodel.ProviderSelectionViewModel.INVITE_CODE_PROVIDER;
+import static se.leap.bitmaskclient.providersetup.fragments.SetupFragmentFactory.PROVIDER_SELECTION_FRAGMENT;
 import static se.leap.bitmaskclient.tor.TorStatusObservable.TorStatus.OFF;
 
 import android.Manifest;
@@ -33,7 +33,9 @@ import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.content.ContextCompat;
 import androidx.core.content.res.ResourcesCompat;
 import androidx.fragment.app.DialogFragment;
+import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentTransaction;
+import androidx.viewpager2.adapter.FragmentStateAdapter;
 import androidx.viewpager2.widget.ViewPager2;
 
 import org.json.JSONException;
@@ -41,10 +43,12 @@ import org.json.JSONObject;
 
 import java.util.ArrayList;
 import java.util.HashSet;
+import java.util.Objects;
 
 import se.leap.bitmaskclient.BuildConfig;
 import se.leap.bitmaskclient.R;
 import se.leap.bitmaskclient.base.FragmentManagerEnhanced;
+import se.leap.bitmaskclient.base.models.Introducer;
 import se.leap.bitmaskclient.base.models.Provider;
 import se.leap.bitmaskclient.base.models.ProviderObservable;
 import se.leap.bitmaskclient.base.utils.ViewHelper;
@@ -53,6 +57,7 @@ import se.leap.bitmaskclient.databinding.ActivitySetupBinding;
 import se.leap.bitmaskclient.providersetup.ProviderSetupFailedDialog;
 import se.leap.bitmaskclient.providersetup.ProviderSetupObservable;
 import se.leap.bitmaskclient.providersetup.SetupViewPagerAdapter;
+import se.leap.bitmaskclient.providersetup.fragments.ProviderSelectionFragment;
 import se.leap.bitmaskclient.tor.TorServiceCommand;
 import se.leap.bitmaskclient.tor.TorStatusObservable;
 
@@ -167,6 +172,54 @@ public class SetupActivity extends AppCompatActivity implements SetupActivityCal
             }
         }
         binding.viewPager.setCurrentItem(currentPosition, false);
+       if (getIntent() != null) {
+           manageIntent(getIntent());
+       }
+    }
+
+    /**
+     * Manages the incoming intent and processes the provider selection if the intent action is ACTION_VIEW
+     * and the data scheme is "obfsvpnintro". This method create an introducer from the URI data and sets the
+     * current provider to the introducer.
+     * <p>
+     *     If the current fragment is a ProviderSelectionFragment, it will notify the fragment that the provider
+     *     selection has changed.
+     * </p>
+     *
+     *
+     * @param intent The incoming intent to be managed.
+     * @see #onProviderSelected(Provider)
+     * @see ProviderSelectionFragment#providerSelectionChanged()
+     */
+    private void manageIntent(Intent intent) {
+        if (Intent.ACTION_VIEW.equals(intent.getAction()) && intent.getData() != null) {
+            String scheme = intent.getData().getScheme();
+
+            if (Objects.equals(scheme, "obfsvpnintro")) {
+                try {
+                    onProviderSelected(new Provider(Introducer.fromUrl(intent.getData().toString())));
+                    binding.viewPager.setCurrentItem(adapter.getFragmentPostion(PROVIDER_SELECTION_FRAGMENT));
+                    binding.viewPager.post(() -> {
+                        /**
+                         * @see FragmentStateAdapter#saveState()
+                         */
+                        String fragmentTag = "f" + binding.viewPager.getCurrentItem();
+                        Fragment fragment = getSupportFragmentManager().findFragmentByTag(fragmentTag);
+                        if (fragment instanceof ProviderSelectionFragment){
+                            ((ProviderSelectionFragment) fragment).providerSelectionChanged();
+                        }
+                    });
+                } catch (Exception e) {
+                    Log.d("invite", e.getMessage());
+                }
+            }
+        }
+    }
+
+    @Override
+    protected void onNewIntent(Intent intent) {
+        super.onNewIntent(intent);
+        manageIntent(intent);
     }
 
     @Override
diff --git a/app/src/main/java/se/leap/bitmaskclient/providersetup/fragments/ProviderSelectionFragment.java b/app/src/main/java/se/leap/bitmaskclient/providersetup/fragments/ProviderSelectionFragment.java
index 24da4691..e5c19e28 100644
--- a/app/src/main/java/se/leap/bitmaskclient/providersetup/fragments/ProviderSelectionFragment.java
+++ b/app/src/main/java/se/leap/bitmaskclient/providersetup/fragments/ProviderSelectionFragment.java
@@ -155,7 +155,17 @@ public class ProviderSelectionFragment extends BaseSetupFragment implements Canc
                 binding.getRoot().smoothScrollTo(binding.editCustomProvider.getLeft(), binding.getRoot().getBottom());
             }
         });
-        binding.providerRadioGroup.check(viewModel.getSelected());
+        providerSelectionChanged();
+    }
+
+    public void providerSelectionChanged(){
+        Provider provider = setupActivityCallback.getSelectedProvider();
+        if (provider != null && provider.hasIntroducer()) {
+            binding.providerRadioGroup.check(INVITE_CODE_PROVIDER);
+            binding.editCustomProvider.setText(provider.getIntroducer().toUrl());
+        } else {
+            binding.providerRadioGroup.check(viewModel.getSelected());
+        }
     }
 
     private void providerSelected(String string, int checkedId) {