Apollo: Release source code for 52

android/CHANGELOG.md

@@ -6,6 +6,14 @@ follow [https://changelog.md/](https://changelog.md/) guidelines.
 
 ## [Unreleased]
 
+## [52] - 2024-06-14
+
+### ADDED
+
+- Wallet delete
+  All users can now request wallet delete, to comply with Google Play Account Deletion Data Safety
+  policy.
+
 ## [51.11] - 2024-05-18
 
 ### FIXED

android/apollo/src/main/java/io/muun/apollo/data/external/Globals.kt

@@ -105,6 +105,11 @@ abstract class Globals {
      */
     abstract val rcLoginAuthorizePath: String
 
+    /**
+     * Get the path of this app's "Confirm Account Deletion" deeplink.
+     */
+    abstract val confirmAccountDeletionPath: String
+
     /**
      * Get Lapp's URL.
      */

android/apollo/src/main/java/io/muun/apollo/data/net/HoustonClient.java

@@ -7,6 +7,8 @@
 import io.muun.apollo.data.os.GooglePlayServicesHelper;
 import io.muun.apollo.data.os.HardwareCapabilitiesProvider;
 import io.muun.apollo.data.os.OS_ExtensionsKt;
+import io.muun.apollo.domain.errors.delete_wallet.NonEmptyWalletDeleteException;
+import io.muun.apollo.domain.errors.delete_wallet.UnsettledOperationsWalletDeleteException;
 import io.muun.apollo.domain.errors.newop.CyclicalSwapError;
 import io.muun.apollo.domain.errors.newop.InvalidInvoiceException;
 import io.muun.apollo.domain.errors.newop.InvoiceAlreadyUsedException;
@@ -42,6 +44,7 @@
 import io.muun.apollo.domain.model.user.UserProfile;
 import io.muun.common.Optional;
 import io.muun.common.api.ChallengeSetupVerifyJson;
+import io.muun.common.api.ChallengeSignatureJson;
 import io.muun.common.api.CreateFirstSessionJson;
 import io.muun.common.api.CreateLoginSessionJson;
 import io.muun.common.api.CreateRcLoginSessionJson;
@@ -72,6 +75,7 @@
 import io.muun.common.model.challenge.Challenge;
 import io.muun.common.model.challenge.ChallengeSetup;
 import io.muun.common.model.challenge.ChallengeSignature;
+import io.muun.common.rx.CompletableFn;
 import io.muun.common.rx.ObservableFn;
 import io.muun.common.rx.RxHelper;
 import io.muun.common.utils.Encodings;
@@ -80,6 +84,7 @@
 
 import android.content.Context;
 import android.net.Uri;
+import androidx.annotation.NonNull;
 import libwallet.MusigNonces;
 import okhttp3.MediaType;
 import rx.Completable;
@@ -346,7 +351,7 @@ public Observable<KeySet> loginCompatWithoutChallenge() {
 
     /**
      * Notify houston of a client logout. Not a critical request, in fact its just so Houston
-     * can now IN ADVANCE of a session expiration (otherwise will have to wait until a new create
+     * can know IN ADVANCE of a session expiration (otherwise will have to wait until a new create
      * session to invalidate old ones). So, its a fire and forget call.
      */
     public Observable<Void> notifyLogout(String authHeader) {
@@ -786,4 +791,29 @@ incomingSwap, new PreimageJson(Encodings.bytesToHex(preimage))
     public Completable updateUserPreferences(final UserPreferences prefs) {
         return getService().updateUserPreferences(prefs.toJson());
     }
+
+    /**
+     * Irreversibly delete current user wallet.
+     */
+    public Completable deleteWallet(@NonNull final ChallengeSignature challengeSignature) {
+        final ChallengeSignatureJson challengeSignatureJson =
+                apiMapper.mapChallengeSignature(challengeSignature);
+
+        return getService().deleteWallet(challengeSignatureJson)
+                .compose(CompletableFn.replaceHttpException(
+                        ErrorCode.WALLET_NOT_EMPTY,
+                        NonEmptyWalletDeleteException::new
+                ))
+                .compose(CompletableFn.replaceHttpException(
+                        ErrorCode.UNSETTLED_OPERATIONS,
+                        UnsettledOperationsWalletDeleteException::new
+                ));
+    }
+
+    /**
+     * Use an external confirmation link (received by email) to confirm account deletion.
+     */
+    public Observable<Void> confirmAccountDeletion(String uuid) {
+        return getService().confirmAccountDeletion(new LinkActionJson(uuid));
+    }
 }

android/apollo/src/main/java/io/muun/apollo/domain/action/di/ActionComponent.java

@@ -34,6 +34,7 @@
 import io.muun.apollo.domain.action.session.SyncApplicationDataAction;
 import io.muun.apollo.domain.action.session.UseMuunLinkAction;
 import io.muun.apollo.domain.action.session.rc_only.LogInWithRcAction;
+import io.muun.apollo.domain.action.user.DeleteWalletAction;
 import io.muun.apollo.domain.action.user.EmailLinkAction;
 import io.muun.apollo.domain.action.user.UpdateProfilePictureAction;
 import io.muun.apollo.domain.debug.DebugExecutable;
@@ -129,5 +130,7 @@ public interface ActionComponent {
 
     UpdateContactsPermissionStateAction updateContactsPermissionStateAction();
 
+    DeleteWalletAction deleteWalletAction();
+
     DebugExecutable debugExecutable();
 }

android/apollo/src/main/java/io/muun/apollo/domain/action/session/UseMuunLinkAction.kt

@@ -43,6 +43,7 @@ open class UseMuunLinkAction @Inject constructor(
             isEmailAuthorize(parser) -> houstonClient.useAuthorizeLink(uuid)
             isEmailConfirm(parser) -> houstonClient.useConfirmLink(uuid)
             isRcLoginAuthorize(parser) -> houstonClient.authorizeLoginWithRecoveryCode(uuid)
+            isAccountDeletionConfirm(parser) -> houstonClient.confirmAccountDeletion(uuid)
 
             else ->
                 throw MissingCaseError(linkUri, "Muun links")
@@ -63,4 +64,7 @@ open class UseMuunLinkAction @Inject constructor(
 
     private fun isRcLoginAuthorize(p: UriParser) =
         p.pathWithSlash == Globals.INSTANCE.rcLoginAuthorizePath
+
+    private fun isAccountDeletionConfirm(p: UriParser) =
+        p.pathWithSlash == Globals.INSTANCE.confirmAccountDeletionPath
 }

android/apollo/src/main/java/io/muun/apollo/domain/action/user/DeleteWalletAction.kt

@@ -0,0 +1,32 @@
+package io.muun.apollo.domain.action.user
+
+import io.muun.apollo.data.net.HoustonClient
+import io.muun.apollo.domain.action.base.BaseAsyncAction0
+import io.muun.apollo.domain.action.challenge_keys.SignChallengeAction
+import io.muun.common.Optional
+import io.muun.common.crypto.ChallengeType
+import io.muun.common.model.challenge.Challenge
+import rx.Observable
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class DeleteWalletAction @Inject constructor(
+    private val signChallenge: SignChallengeAction,
+    private val houstonClient: HoustonClient,
+) : BaseAsyncAction0<Void>() {
+
+    override fun action(): Observable<Void> {
+        return Observable.defer {
+            houstonClient.requestChallenge(ChallengeType.USER_KEY)
+                .map { maybeChallenge: Optional<Challenge> ->
+                    val challenge = maybeChallenge.orElseThrow() // empty only for legacy apps
+                    signChallenge.signWithUserKey(challenge)
+                }
+                .flatMap { challengeSignature ->
+                    houstonClient.deleteWallet(challengeSignature)
+                        .andThen(Observable.just(null))
+                }
+        }
+    }
+}

android/apollo/src/main/java/io/muun/apollo/domain/analytics/AnalyticsEvent.kt

@@ -296,7 +296,16 @@ sealed class AnalyticsEvent(metadataKeyValues: List<Pair<String, Any>> = listOf(
     class E_RECOVERY_CODE_SET_UP : AnalyticsEvent()
     class E_LOG_OUT : AnalyticsEvent()
     class E_WALLET_CREATED : AnalyticsEvent()
-    class E_WALLET_DELETED : AnalyticsEvent()
+    class E_WALLET_DELETE(val state: WalletDeleteState) : AnalyticsEvent(
+        listOf("type" to state.name.lowercase(Locale.getDefault()))
+    )
+
+    enum class WalletDeleteState {
+        STARTED,
+        ERROR,
+        SUCCESS,
+    }
+
     class E_SIGN_IN_ABORTED : AnalyticsEvent()
 
     class E_SIGN_IN_SUCCESSFUL(val type: LoginType) : AnalyticsEvent(
@@ -441,8 +450,7 @@ sealed class AnalyticsEvent(metadataKeyValues: List<Pair<String, Any>> = listOf(
         RC_SETUP_START_CONNECTION_ERROR,
         RC_SETUP_FINISH_CONNECTION_ERROR,
         RC_STALE_ERROR,
-        RC_CREDENTIALS_DONT_MATCH_ERROR,
-        CRASHLYTICS
+        RC_CREDENTIALS_DONT_MATCH_ERROR
     }
 
     class E_ERROR(val type: ERROR_TYPE, vararg extras: Any) : AnalyticsEvent(

android/apollo/src/main/java/io/muun/apollo/domain/errors/delete_wallet/NonEmptyWalletDeleteException.kt

@@ -0,0 +1,5 @@
+package io.muun.apollo.domain.errors.delete_wallet
+
+import io.muun.apollo.domain.errors.MuunError
+
+class NonEmptyWalletDeleteException(cause: Throwable) : MuunError(cause)

android/apollo/src/main/java/io/muun/apollo/domain/errors/delete_wallet/UnsettledOperationsWalletDeleteException.kt

@@ -0,0 +1,5 @@
+package io.muun.apollo.domain.errors.delete_wallet
+
+import io.muun.apollo.domain.errors.MuunError
+
+class UnsettledOperationsWalletDeleteException(cause: Throwable) : MuunError(cause)

android/apolloui/build.gradle

@@ -63,20 +63,23 @@ static def configExternalLinks(productFlavor, String host) {
     String authorizePath = "/link/authorize/index.html"
     String changePasswdPath = "/link/confirm/index.html"
     String rcLoginAuthPath = "/link/authorize-rc/index.html"
+    String confirmAccountDeletionPath = "/link/confirm-account-deletion/index.html"
 
     // Required for AndroidManifest:
     productFlavor.resValue "string", "muun_link_host", host
     productFlavor.resValue "string", "verify_link_path", verifyPath
     productFlavor.resValue "string", "authorize_link_path", authorizePath
     productFlavor.resValue "string", "confirm_link_path", changePasswdPath
     productFlavor.resValue "string", "rc_login_authorize_link_path", rcLoginAuthPath
+    productFlavor.resValue "string", "confirm_account_deletion_path", confirmAccountDeletionPath
 
     // Required for code access in action layer:
     productFlavor.buildConfigField "String", "MUUN_LINK_HOST", quote(host)
     productFlavor.buildConfigField "String", "VERIFY_LINK_PATH", quote(verifyPath)
     productFlavor.buildConfigField "String", "AUTHORIZE_LINK_PATH", quote(authorizePath)
     productFlavor.buildConfigField "String", "CONFIRM_LINK_PATH", quote(changePasswdPath)
     productFlavor.buildConfigField "String", "RC_LOGIN_AUTHORIZE_LINK_PATH", quote(rcLoginAuthPath)
+    productFlavor.buildConfigField "String", "CONFIRM_ACCOUNT_DELETION_PATH", quote(confirmAccountDeletionPath)
 }
 
 
@@ -91,8 +94,8 @@ android {
         applicationId "io.muun.apollo"
         minSdkVersion 19
         targetSdkVersion 33
-        versionCode 1111
-        versionName "51.11"
+        versionCode 1200
+        versionName "52"
 
         // Needed to make sure these classes are available in the main DEX file for API 19
         // See: https://spin.atomicobject.com/2018/07/16/support-kitkat-multidex/

android/apolloui/src/main/AndroidManifest.xml

@@ -126,6 +126,16 @@
                         android:path="@string/rc_login_authorize_link_path" />
             </intent-filter>
 
+            <intent-filter android:label="@string/confirm_link_handler_label">
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data android:scheme="https"
+                        android:host="@string/muun_link_host"
+                        android:path="@string/confirm_account_deletion_path" />
+            </intent-filter>
+
         </activity>
 
         <!-- SignupActivity -->

android/apolloui/src/main/java/io/muun/apollo/presentation/app/GlobalsImpl.kt

@@ -62,6 +62,9 @@ class GlobalsImpl : Globals() {
     override val rcLoginAuthorizePath: String
         get() = BuildConfig.RC_LOGIN_AUTHORIZE_LINK_PATH
 
+    override val confirmAccountDeletionPath: String
+        get() = BuildConfig.CONFIRM_ACCOUNT_DELETION_PATH
+
     override val lappUrl: String
         get() = BuildConfig.LAPP_URL
 }

android/apolloui/src/main/java/io/muun/apollo/presentation/ui/activity/extension/AlertDialogExtension.kt

@@ -31,8 +31,12 @@ class AlertDialogExtension @Inject constructor() : ActivityExtension() {
         dismissDialog()
 
         // ON dialog dismiss, dispose android's dialog reference to avoid memory leaks
-        dialog.addOnDismissAction {
-            activeDialog = null
+        dialog.addOnDismissAction { dismissedDialog ->
+            // If activeDialog has changed, it means dismissedDialog is already dismissed and a new
+            // dialog is being shown. We don't want to lose that ref (to properly dismiss it later).
+            if (activeDialog == dismissedDialog) {
+                activeDialog = null
+            }
         }
 
         activeDialog = dialog.show(activity)

android/apolloui/src/main/java/io/muun/apollo/presentation/ui/fragments/ek_save/EmergencyKitSaveFragment.kt

@@ -70,7 +70,9 @@ class EmergencyKitSaveFragment : SingleFragment<EmergencyKitSavePresenter>(),
     /** User's choice of application the last time the share dialog was displayed. */
     private var chosenShareTarget: String? = null
 
-    /** Whether the loading dialog is currently on screen */
+    /** Whether the loading dialog is currently on screen. Required due to limitations of
+     * AlertDialogExtensions. It can't handle multiple dismissDialogs() calls prompted by
+     * handleStates(). */
     private var showingLoadingDialog = false
 
     override fun inject() =