Add a hook to disable public rooms/spaces on UI.

features/createroom/impl/src/main/kotlin/io/element/android/features/createroom/impl/configureroom/ConfigureRoomPresenter.kt

@@ -16,6 +16,7 @@ import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.derivedStateOf
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.produceState
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
@@ -92,6 +93,9 @@ class ConfigureRoomPresenter(
         val isKnockFeatureEnabled by remember {
             featureFlagService.isFeatureEnabledFlow(FeatureFlags.Knock)
         }.collectAsState(initial = false)
+        val arePublicRoomsDisabled by produceState(false) {
+            value = sessionEnterpriseService.arePublicRoomsDisabledByHomeserver()
+        }
         val roomAddressValidity = remember {
             mutableStateOf<RoomAddressValidity>(RoomAddressValidity.Unknown)
         }
@@ -145,12 +149,13 @@ class ConfigureRoomPresenter(
         // 1. If we are creating a space.
         // 2. If it has a parent space.
         // 3. If knocking is enabled.
+        // 4. If the homeserver forbids public rooms.
         val parentSpace = createRoomConfig.parentSpace
-        val availableJoinRules = remember(parentSpace, isSpace, isKnockFeatureEnabled) {
+        val availableJoinRules = remember(parentSpace, isSpace, isKnockFeatureEnabled, arePublicRoomsDisabled) {
             when {
                 isSpace && parentSpace != null -> TODO("Adding a space to a parent space is not supported yet! How did you get here?")
                 parentSpace == null || parentSpace.joinRule == JoinRule.Public -> listOfNotNull(
-                    JoinRuleItem.PublicVisibility.Public,
+                    JoinRuleItem.PublicVisibility.Public.takeIf { !arePublicRoomsDisabled },
                     JoinRuleItem.PublicVisibility.AskToJoin.takeIf { !isSpace && isKnockFeatureEnabled },
                     JoinRuleItem.PrivateVisibility.Private,
                 ).toImmutableList()

features/createroom/impl/src/test/kotlin/io/element/android/features/createroom/impl/ConfigureRoomPresenterTest.kt

@@ -57,6 +57,7 @@ import io.element.android.libraries.previewutils.room.aSpaceRoom
 import io.element.android.services.analytics.api.AnalyticsService
 import io.element.android.services.analytics.test.FakeAnalyticsService
 import io.element.android.tests.testutils.WarmUpRule
+import io.element.android.tests.testutils.consumeItemsUntilPredicate
 import io.element.android.tests.testutils.lambda.lambdaRecorder
 import io.element.android.tests.testutils.lambda.matching
 import io.element.android.tests.testutils.robolectric.RobolectricTest
@@ -522,7 +523,10 @@ class ConfigureRoomPresenterTest : RobolectricTest() {
 
     @Test
     fun `present - creating a private room when encryption is disabled by the HS creates it unencrypted`() = runTest {
-        val sessionEnterpriseService = FakeSessionEnterpriseService(isEncryptionDisabledResult = { true })
+        val sessionEnterpriseService = FakeSessionEnterpriseService(
+            isEncryptionDisabledResult = { true },
+            arePublicRoomsDisabledResult = { false },
+        )
         val createRoomLambda = lambdaRecorder<CreateRoomParameters, Result<RoomId>> { Result.success(A_ROOM_ID) }
         val matrixClient = createMatrixClient().apply {
             createRoomResult = createRoomLambda
@@ -544,6 +548,38 @@ class ConfigureRoomPresenterTest : RobolectricTest() {
         }
     }
 
+    @Test
+    fun `present - when public rooms are disabled by the HS, the public join rule is not available`() = runTest {
+        val presenter = createConfigureRoomPresenter(
+            sessionEnterpriseService = FakeSessionEnterpriseService(
+                isEncryptionDisabledResult = { false },
+                arePublicRoomsDisabledResult = { true },
+            ),
+        )
+        presenter.test {
+            val expectedJoinRules = listOf(JoinRuleItem.PublicVisibility.AskToJoin, JoinRuleItem.PrivateVisibility.Private)
+            val state = consumeItemsUntilPredicate { it.availableJoinRules == expectedJoinRules }.last()
+            assertThat(state.availableJoinRules).containsExactlyElementsIn(expectedJoinRules).inOrder()
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - when public rooms are disabled by the HS, only the private join rule is available for a space`() = runTest {
+        val presenter = createConfigureRoomPresenter(
+            isSpace = true,
+            sessionEnterpriseService = FakeSessionEnterpriseService(
+                isEncryptionDisabledResult = { false },
+                arePublicRoomsDisabledResult = { true },
+            ),
+        )
+        presenter.test {
+            val state = consumeItemsUntilPredicate { it.availableJoinRules == listOf(JoinRuleItem.PrivateVisibility.Private) }.last()
+            assertThat(state.config.visibilityState).isEqualTo(RoomVisibilityState.Private(JoinRuleItem.PrivateVisibility.Private))
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
     private suspend fun TurbineTestContext<ConfigureRoomState>.initialState(): ConfigureRoomState {
         skipItems(1)
         return awaitItem()
@@ -579,7 +615,10 @@ class ConfigureRoomPresenterTest : RobolectricTest() {
         permissionsPresenter: PermissionsPresenter = FakePermissionsPresenter(),
         isKnockFeatureEnabled: Boolean = true,
         mediaOptimizationConfigProvider: FakeMediaOptimizationConfigProvider = FakeMediaOptimizationConfigProvider(),
-        sessionEnterpriseService: FakeSessionEnterpriseService = FakeSessionEnterpriseService(isEncryptionDisabledResult = { false }),
+        sessionEnterpriseService: FakeSessionEnterpriseService = FakeSessionEnterpriseService(
+            isEncryptionDisabledResult = { false },
+            arePublicRoomsDisabledResult = { false },
+        ),
     ) = ConfigureRoomPresenter(
         isSpace = isSpace,
         initialParentSpaceId = initialParenSpaceId,

features/enterprise/api/src/main/kotlin/io/element/android/features/enterprise/api/SessionEnterpriseService.kt

@@ -29,4 +29,10 @@ interface SessionEnterpriseService {
 
     /** Whether the homeserver forbids creating encrypted rooms, in which case the app must not offer the option. */
     suspend fun isEncryptionDisabledByHomeserver(): Boolean
+
+    /**
+     * Whether the homeserver forbids public rooms and spaces, in which case the app must not offer to create one,
+     * nor to make an existing room or space public.
+     */
+    suspend fun arePublicRoomsDisabledByHomeserver(): Boolean
 }

features/enterprise/impl-foss/src/main/kotlin/io/element/android/features/enterprise/impl/DefaultSessionEnterpriseService.kt

@@ -18,4 +18,5 @@ class DefaultSessionEnterpriseService : SessionEnterpriseService {
     override suspend fun tweakMasUrl(url: String): String = url
     override suspend fun isElementCallAvailable(): Boolean = true
     override suspend fun isEncryptionDisabledByHomeserver(): Boolean = false
+    override suspend fun arePublicRoomsDisabledByHomeserver(): Boolean = false
 }

features/enterprise/test/src/main/kotlin/io/element/android/features/enterprise/test/FakeSessionEnterpriseService.kt

@@ -16,6 +16,7 @@ class FakeSessionEnterpriseService(
     private val isElementCallAvailableResult: () -> Boolean = { lambdaError() },
     private val tweakMasUrlResult: (String) -> String = { lambdaError() },
     private val isEncryptionDisabledResult: () -> Boolean = { lambdaError() },
+    private val arePublicRoomsDisabledResult: () -> Boolean = { lambdaError() },
 ) : SessionEnterpriseService {
     override suspend fun init() {
     }
@@ -31,4 +32,8 @@ class FakeSessionEnterpriseService(
     override suspend fun isEncryptionDisabledByHomeserver(): Boolean {
         return isEncryptionDisabledResult()
     }
+
+    override suspend fun arePublicRoomsDisabledByHomeserver(): Boolean {
+        return arePublicRoomsDisabledResult()
+    }
 }

features/securityandprivacy/impl/src/main/kotlin/io/element/android/features/securityandprivacy/impl/root/SecurityAndPrivacyPresenter.kt

@@ -89,6 +89,10 @@ class SecurityAndPrivacyPresenter(
             value = sessionEnterpriseService.isEncryptionDisabledByHomeserver()
         }
 
+        val arePublicRoomsDisabledByHomeserver by produceState(false) {
+            value = sessionEnterpriseService.arePublicRoomsDisabledByHomeserver()
+        }
+
         val savedIsVisibleInRoomDirectory = remember { mutableStateOf<AsyncData<Boolean>>(AsyncData.Uninitialized) }
         LaunchedEffect(Unit) {
             isRoomVisibleInRoomDirectory(savedIsVisibleInRoomDirectory)
@@ -254,6 +258,7 @@ class SecurityAndPrivacyPresenter(
             selectableJoinedSpaces = selectableJoinedSpaces,
             spaceSelectionMode = spaceSelectionMode,
             isEncryptionDisabledByHomeserver = isEncryptionDisabledByHomeserver,
+            arePublicRoomsDisabledByHomeserver = arePublicRoomsDisabledByHomeserver,
             eventSink = ::handleEvent,
         )
 

features/securityandprivacy/impl/src/main/kotlin/io/element/android/features/securityandprivacy/impl/root/SecurityAndPrivacyState.kt

@@ -28,6 +28,7 @@ data class SecurityAndPrivacyState(
     val editedSettings: SecurityAndPrivacySettings,
     val homeserverName: String,
     val isEncryptionDisabledByHomeserver: Boolean,
+    private val arePublicRoomsDisabledByHomeserver: Boolean,
     val showEnableEncryptionConfirmation: Boolean,
     private val isKnockEnabled: Boolean,
     val saveAction: AsyncAction<Unit>,
@@ -39,6 +40,11 @@ data class SecurityAndPrivacyState(
 ) {
     val isSpaceMemberSelectable = spaceSelectionMode != SpaceSelectionMode.None
 
+    // Show Anyone option when:
+    // - Anyone is the current saved value, OR
+    // - The homeserver allows public rooms
+    val showAnyoneOption = savedSettings.roomAccess == SecurityAndPrivacyRoomAccess.Anyone || !arePublicRoomsDisabledByHomeserver
+
     // Show SpaceMember option in two cases:
     // - SpaceMember is the current saved value
     // - SpaceMember option is selectable (ie. the FF is enabled and there is at least one space to select)

features/securityandprivacy/impl/src/main/kotlin/io/element/android/features/securityandprivacy/impl/root/SecurityAndPrivacyStatePreviewParam.kt

@@ -37,6 +37,10 @@ open class SecurityAndPrivacyStatePreviewParam : PreviewParameterProvider<Securi
                     showEncryptionConfirmation = true,
                     isSpace = false,
                 ),
+                aSecurityAndPrivacyState(
+                    arePublicRoomsDisabledByHomeserver = true,
+                    isSpace = false,
+                ),
             )
 }
 
@@ -139,6 +143,7 @@ fun aSecurityAndPrivacyState(
     selectableJoinedSpaces: Set<SpaceRoom> = emptySet(),
     spaceSelectionMode: SpaceSelectionMode = SpaceSelectionMode.None,
     isEncryptionDisabledByHomeserver: Boolean = false,
+    arePublicRoomsDisabledByHomeserver: Boolean = false,
     eventSink: (SecurityAndPrivacyEvent) -> Unit = {}
 ) = SecurityAndPrivacyState(
     editedSettings = editedSettings,
@@ -152,5 +157,6 @@ fun aSecurityAndPrivacyState(
     selectableJoinedSpaces = selectableJoinedSpaces.toImmutableSet(),
     spaceSelectionMode = spaceSelectionMode,
     isEncryptionDisabledByHomeserver = isEncryptionDisabledByHomeserver,
+    arePublicRoomsDisabledByHomeserver = arePublicRoomsDisabledByHomeserver,
     eventSink = eventSink,
 )

features/securityandprivacy/impl/src/main/kotlin/io/element/android/features/securityandprivacy/impl/root/SecurityAndPrivacyView.kt

@@ -232,13 +232,15 @@ private fun RoomAccessSection(
         title = stringResource(R.string.screen_security_and_privacy_room_access_section_header),
         modifier = modifier,
     ) {
-        ListItem(
-            content = { Text(text = stringResource(R.string.screen_security_and_privacy_room_access_anyone_option_title)) },
-            supportingContent = { Text(text = stringResource(R.string.screen_security_and_privacy_room_access_anyone_option_description)) },
-            trailingContent = ListItemContent.RadioButton(selected = edited == SecurityAndPrivacyRoomAccess.Anyone),
-            leadingContent = ListItemContent.Icon(IconSource.Vector(CompoundIcons.Public())),
-            onClick = { onSelectOption(SecurityAndPrivacyRoomAccess.Anyone) },
-        )
+        if (state.showAnyoneOption) {
+            ListItem(
+                content = { Text(text = stringResource(R.string.screen_security_and_privacy_room_access_anyone_option_title)) },
+                supportingContent = { Text(text = stringResource(R.string.screen_security_and_privacy_room_access_anyone_option_description)) },
+                trailingContent = ListItemContent.RadioButton(selected = edited == SecurityAndPrivacyRoomAccess.Anyone),
+                leadingContent = ListItemContent.Icon(IconSource.Vector(CompoundIcons.Public())),
+                onClick = { onSelectOption(SecurityAndPrivacyRoomAccess.Anyone) },
+            )
+        }
         if (state.showSpaceMemberOption) {
             ListItem(
                 content = { Text(text = stringResource(R.string.screen_security_and_privacy_room_access_space_members_option_title)) },

features/securityandprivacy/impl/src/test/kotlin/io/element/android/features/securityandprivacy/impl/root/SecurityAndPrivacyPresenterTest.kt

@@ -34,6 +34,8 @@ import io.element.android.libraries.matrix.test.room.aRoomInfo
 import io.element.android.libraries.matrix.test.room.powerlevels.FakeRoomPermissions
 import io.element.android.libraries.matrix.test.spaces.FakeSpaceService
 import io.element.android.libraries.previewutils.room.aSpaceRoom
+import io.element.android.tests.testutils.consumeItemsUntilPredicate
+import io.element.android.tests.testutils.consumeItemsUntilTimeout
 import io.element.android.tests.testutils.lambda.assert
 import io.element.android.tests.testutils.lambda.lambdaError
 import io.element.android.tests.testutils.lambda.lambdaRecorder
@@ -1048,7 +1050,10 @@ class SecurityAndPrivacyPresenterTest {
 
     @Test
     fun `present - showEncryptionSection is false if the HS disabled encryption`() = runTest {
-        val sessionEnterpriseService = FakeSessionEnterpriseService(isEncryptionDisabledResult = { true })
+        val sessionEnterpriseService = FakeSessionEnterpriseService(
+            isEncryptionDisabledResult = { true },
+            arePublicRoomsDisabledResult = { false },
+        )
         val presenter = createSecurityAndPrivacyPresenter(
             sessionEnterpriseService = sessionEnterpriseService,
         )
@@ -1060,6 +1065,42 @@ class SecurityAndPrivacyPresenterTest {
         }
     }
 
+    @Test
+    fun `present - showAnyoneOption is false if the HS disabled public rooms`() = runTest {
+        val presenter = createSecurityAndPrivacyPresenter(
+            sessionEnterpriseService = FakeSessionEnterpriseService(
+                isEncryptionDisabledResult = { false },
+                arePublicRoomsDisabledResult = { true },
+            ),
+        )
+        presenter.test {
+            consumeItemsUntilPredicate { !it.showAnyoneOption }
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `present - showAnyoneOption is true if the HS disabled public rooms but the room is already public`() = runTest {
+        val presenter = createSecurityAndPrivacyPresenter(
+            room = FakeJoinedRoom(
+                baseRoom = FakeBaseRoom(
+                    roomPermissions = roomPermissions(),
+                    getRoomVisibilityResult = { Result.success(RoomVisibility.Public) },
+                    initialRoomInfo = aRoomInfo(historyVisibility = RoomHistoryVisibility.Shared, joinRule = JoinRule.Public)
+                ),
+            ),
+            sessionEnterpriseService = FakeSessionEnterpriseService(
+                isEncryptionDisabledResult = { false },
+                arePublicRoomsDisabledResult = { true },
+            ),
+        )
+        presenter.test {
+            val states = consumeItemsUntilTimeout()
+            assertThat(states).isNotEmpty()
+            assertThat(states.all { it.showAnyoneOption }).isTrue()
+        }
+    }
+
     private fun roomPermissions(
         canChangeRoomAccess: Boolean = true,
         canChangeHistoryVisibility: Boolean = true,
@@ -1100,6 +1141,7 @@ class SecurityAndPrivacyPresenterTest {
         spaceSelectionStateHolder: SpaceSelectionStateHolder = SpaceSelectionStateHolder(),
         sessionEnterpriseService: FakeSessionEnterpriseService = FakeSessionEnterpriseService(
             isEncryptionDisabledResult = { false },
+            arePublicRoomsDisabledResult = { false },
         )
     ): SecurityAndPrivacyPresenter {
         return SecurityAndPrivacyPresenter(