Merge pull request #706 from vector-im/feature/handle_matrix_to

Feature/handle matrix to

CHANGES.md

@@ -5,7 +5,8 @@ Features ✨:
  - Implement soft logout (#281)
 
 Improvements 🙌:
- -
+ - Handle navigation to room via room alias (#201)
+ - Open matrix.to link in RiotX (#57)
 
 Other changes:
  - Use same default room colors than Riot-Web

matrix-sdk-android-rx/src/main/java/im/vector/matrix/rx/MatrixCallbackCompletable.kt

@@ -1,38 +0,0 @@
-/*
- * Copyright 2019 New Vector Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package im.vector.matrix.rx
-
-import im.vector.matrix.android.api.MatrixCallback
-import im.vector.matrix.android.api.util.Cancelable
-import io.reactivex.CompletableEmitter
-
-internal class MatrixCallbackCompletable<T>(private val completableEmitter: CompletableEmitter) : MatrixCallback<T> {
-
-    override fun onSuccess(data: T) {
-        completableEmitter.onComplete()
-    }
-
-    override fun onFailure(failure: Throwable) {
-        completableEmitter.tryOnError(failure)
-    }
-}
-
-fun Cancelable.toCompletable(completableEmitter: CompletableEmitter) {
-    completableEmitter.setCancellable {
-        this.cancel()
-    }
-}

matrix-sdk-android-rx/src/main/java/im/vector/matrix/rx/RxCallbackBuilders.kt

@@ -0,0 +1,54 @@
+/*
+ * Copyright 2019 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package im.vector.matrix.rx
+
+import im.vector.matrix.android.api.MatrixCallback
+import im.vector.matrix.android.api.util.Cancelable
+import io.reactivex.Completable
+import io.reactivex.Single
+
+fun <T> singleBuilder(builder: (callback: MatrixCallback<T>) -> Cancelable): Single<T> = Single.create {
+    val callback: MatrixCallback<T> = object : MatrixCallback<T> {
+        override fun onSuccess(data: T) {
+            it.onSuccess(data)
+        }
+
+        override fun onFailure(failure: Throwable) {
+            it.tryOnError(failure)
+        }
+    }
+    val cancelable = builder(callback)
+    it.setCancellable {
+        cancelable.cancel()
+    }
+}
+
+fun <T> completableBuilder(builder: (callback: MatrixCallback<T>) -> Cancelable): Completable = Completable.create {
+    val callback: MatrixCallback<T> = object : MatrixCallback<T> {
+        override fun onSuccess(data: T) {
+            it.onComplete()
+        }
+
+        override fun onFailure(failure: Throwable) {
+            it.tryOnError(failure)
+        }
+    }
+    val cancelable = builder(callback)
+    it.setCancellable {
+        cancelable.cancel()
+    }
+}

matrix-sdk-android-rx/src/main/java/im/vector/matrix/rx/RxRoom.kt

@@ -53,13 +53,13 @@ class RxRoom(private val room: Room) {
         return room.getMyReadReceiptLive().asObservable()
     }
 
-    fun loadRoomMembersIfNeeded(): Single<Unit> = Single.create {
-        room.loadRoomMembersIfNeeded(MatrixCallbackSingle(it)).toSingle(it)
+    fun loadRoomMembersIfNeeded(): Single<Unit> = singleBuilder {
+        room.loadRoomMembersIfNeeded(it)
     }
 
     fun joinRoom(reason: String? = null,
-                 viaServers: List<String> = emptyList()): Single<Unit> = Single.create {
-        room.join(reason, viaServers, MatrixCallbackSingle(it)).toSingle(it)
+                 viaServers: List<String> = emptyList()): Single<Unit> = singleBuilder {
+        room.join(reason, viaServers, it)
     }
 
     fun liveEventReadReceipts(eventId: String): Observable<List<ReadReceipt>> {

matrix-sdk-android-rx/src/main/java/im/vector/matrix/rx/RxSession.kt

@@ -66,20 +66,25 @@ class RxSession(private val session: Session) {
         return session.livePagedUsers(filter).asObservable()
     }
 
-    fun createRoom(roomParams: CreateRoomParams): Single<String> = Single.create {
-        session.createRoom(roomParams, MatrixCallbackSingle(it)).toSingle(it)
+    fun createRoom(roomParams: CreateRoomParams): Single<String> = singleBuilder {
+        session.createRoom(roomParams, it)
     }
 
     fun searchUsersDirectory(search: String,
                              limit: Int,
-                             excludedUserIds: Set<String>): Single<List<User>> = Single.create {
-        session.searchUsersDirectory(search, limit, excludedUserIds, MatrixCallbackSingle(it)).toSingle(it)
+                             excludedUserIds: Set<String>): Single<List<User>> = singleBuilder {
+        session.searchUsersDirectory(search, limit, excludedUserIds, it)
     }
 
     fun joinRoom(roomId: String,
                  reason: String? = null,
-                 viaServers: List<String> = emptyList()): Single<Unit> = Single.create {
-        session.joinRoom(roomId, reason, viaServers, MatrixCallbackSingle(it)).toSingle(it)
+                 viaServers: List<String> = emptyList()): Single<Unit> = singleBuilder {
+        session.joinRoom(roomId, reason, viaServers, it)
+    }
+
+    fun getRoomIdByAlias(roomAlias: String,
+                         searchOnServer: Boolean): Single<Optional<String>> = singleBuilder {
+        session.getRoomIdByAlias(roomAlias, searchOnServer, it)
     }
 }
 

matrix-sdk-android/src/main/java/im/vector/matrix/android/api/permalinks/PermalinkData.kt

@@ -24,9 +24,7 @@ import android.net.Uri
  */
 sealed class PermalinkData {
 
-    data class EventLink(val roomIdOrAlias: String, val eventId: String) : PermalinkData()
-
-    data class RoomLink(val roomIdOrAlias: String) : PermalinkData()
+    data class RoomLink(val roomIdOrAlias: String, val isRoomAlias: Boolean, val eventId: String?) : PermalinkData()
 
     data class UserLink(val userId: String) : PermalinkData()
 

matrix-sdk-android/src/main/java/im/vector/matrix/android/api/permalinks/PermalinkParser.kt

@@ -60,16 +60,21 @@ object PermalinkParser {
             return PermalinkData.FallbackLink(uri)
         }
         return when {
-            MatrixPatterns.isUserId(identifier)  -> PermalinkData.UserLink(userId = identifier)
-            MatrixPatterns.isGroupId(identifier) -> PermalinkData.GroupLink(groupId = identifier)
-            MatrixPatterns.isRoomId(identifier)  -> {
-                if (!extraParameter.isNullOrEmpty() && MatrixPatterns.isEventId(extraParameter)) {
-                    PermalinkData.EventLink(roomIdOrAlias = identifier, eventId = extraParameter)
-                } else {
-                    PermalinkData.RoomLink(roomIdOrAlias = identifier)
+            MatrixPatterns.isUserId(identifier)    -> PermalinkData.UserLink(userId = identifier)
+            MatrixPatterns.isGroupId(identifier)   -> PermalinkData.GroupLink(groupId = identifier)
+            MatrixPatterns.isRoomId(identifier)    -> {
+                val eventId = extraParameter.takeIf {
+                    !it.isNullOrEmpty() && MatrixPatterns.isEventId(it)
                 }
+                PermalinkData.RoomLink(roomIdOrAlias = identifier, isRoomAlias = false, eventId = eventId)
             }
-            else                                 -> PermalinkData.FallbackLink(uri)
+            MatrixPatterns.isRoomAlias(identifier) -> {
+                val eventId = extraParameter.takeIf {
+                    !it.isNullOrEmpty() && MatrixPatterns.isEventId(it)
+                }
+                PermalinkData.RoomLink(roomIdOrAlias = identifier, isRoomAlias = true, eventId = eventId)
+            }
+            else                                   -> PermalinkData.FallbackLink(uri)
         }
     }
 }

matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/room/RoomService.kt

@@ -21,6 +21,7 @@ import im.vector.matrix.android.api.MatrixCallback
 import im.vector.matrix.android.api.session.room.model.RoomSummary
 import im.vector.matrix.android.api.session.room.model.create.CreateRoomParams
 import im.vector.matrix.android.api.util.Cancelable
+import im.vector.matrix.android.api.util.Optional
 
 /**
  * This interface defines methods to get rooms. It's implemented at the session level.
@@ -74,4 +75,11 @@ interface RoomService {
      */
     fun markAllAsRead(roomIds: List<String>,
                       callback: MatrixCallback<Unit>): Cancelable
+
+    /**
+     * Resolve a room alias to a room ID.
+     */
+    fun getRoomIdByAlias(roomAlias: String,
+                         searchOnServer: Boolean,
+                         callback: MatrixCallback<Optional<String>>): Cancelable
 }

matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/room/members/MembershipService.kt

@@ -59,7 +59,6 @@ interface MembershipService {
     /**
      * Join the room, or accept an invitation.
      */
-
     fun join(reason: String? = null,
              viaServers: List<String> = emptyList(),
              callback: MatrixCallback<Unit>): Cancelable

matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/room/model/RoomSummary.kt

@@ -29,6 +29,8 @@ data class RoomSummary(
         val displayName: String = "",
         val topic: String = "",
         val avatarUrl: String = "",
+        val canonicalAlias: String? = null,
+        val aliases: List<String> = emptyList(),
         val isDirect: Boolean = false,
         val latestPreviewableEvent: TimelineEvent? = null,
         val otherMemberIds: List<String> = emptyList(),

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/mapper/RoomSummaryMapper.kt

@@ -68,7 +68,9 @@ internal class RoomSummaryMapper @Inject constructor(
                 membership = roomSummaryEntity.membership,
                 versioningState = roomSummaryEntity.versioningState,
                 readMarkerId = roomSummaryEntity.readMarkerId,
-                userDrafts = roomSummaryEntity.userDrafts?.userDrafts?.map { DraftMapper.map(it) } ?: emptyList()
+                userDrafts = roomSummaryEntity.userDrafts?.userDrafts?.map { DraftMapper.map(it) } ?: emptyList(),
+                canonicalAlias = roomSummaryEntity.canonicalAlias,
+                aliases = roomSummaryEntity.aliases.toList()
         )
     }
 }

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/model/RoomSummaryEntity.kt

@@ -39,7 +39,10 @@ internal open class RoomSummaryEntity(@PrimaryKey var roomId: String = "",
                                       var hasUnreadMessages: Boolean = false,
                                       var tags: RealmList<RoomTagEntity> = RealmList(),
                                       var userDrafts: UserDraftsEntity? = null,
-                                      var breadcrumbsIndex: Int = NOT_IN_BREADCRUMBS
+                                      var breadcrumbsIndex: Int = NOT_IN_BREADCRUMBS,
+                                      var canonicalAlias: String? = null,
+                                      var aliases: RealmList<String> = RealmList(),
+                                      var flatAliases: String = ""
 ) : RealmObject() {
 
     private var membershipStr: String = Membership.NONE.name

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/query/RoomSummaryEntityQueries.kt

@@ -32,6 +32,18 @@ internal fun RoomSummaryEntity.Companion.where(realm: Realm, roomId: String? = n
     return query
 }
 
+internal fun RoomSummaryEntity.Companion.findByAlias(realm: Realm, roomAlias: String): RoomSummaryEntity? {
+    val roomSummary = realm.where<RoomSummaryEntity>()
+            .equalTo(RoomSummaryEntityFields.CANONICAL_ALIAS, roomAlias)
+            .findFirst()
+    if (roomSummary != null) {
+        return roomSummary
+    }
+    return realm.where<RoomSummaryEntity>()
+            .contains(RoomSummaryEntityFields.FLAT_ALIASES, "|$roomAlias")
+            .findFirst()
+}
+
 internal fun RoomSummaryEntity.Companion.getOrCreate(realm: Realm, roomId: String): RoomSummaryEntity {
     return where(realm, roomId).findFirst() ?: realm.createObject(roomId)
 }

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/DefaultRoomService.kt

@@ -25,11 +25,13 @@ import im.vector.matrix.android.api.session.room.model.RoomSummary
 import im.vector.matrix.android.api.session.room.model.VersioningState
 import im.vector.matrix.android.api.session.room.model.create.CreateRoomParams
 import im.vector.matrix.android.api.util.Cancelable
+import im.vector.matrix.android.api.util.Optional
 import im.vector.matrix.android.internal.database.mapper.RoomSummaryMapper
 import im.vector.matrix.android.internal.database.model.RoomEntity
 import im.vector.matrix.android.internal.database.model.RoomSummaryEntity
 import im.vector.matrix.android.internal.database.model.RoomSummaryEntityFields
 import im.vector.matrix.android.internal.database.query.where
+import im.vector.matrix.android.internal.session.room.alias.GetRoomIdByAliasTask
 import im.vector.matrix.android.internal.session.room.create.CreateRoomTask
 import im.vector.matrix.android.internal.session.room.membership.joining.JoinRoomTask
 import im.vector.matrix.android.internal.session.room.read.MarkAllRoomsReadTask
@@ -45,6 +47,7 @@ internal class DefaultRoomService @Inject constructor(private val monarchy: Mona
                                                       private val joinRoomTask: JoinRoomTask,
                                                       private val markAllRoomsReadTask: MarkAllRoomsReadTask,
                                                       private val updateBreadcrumbsTask: UpdateBreadcrumbsTask,
+                                                      private val roomIdByAliasTask: GetRoomIdByAliasTask,
                                                       private val roomFactory: RoomFactory,
                                                       private val taskExecutor: TaskExecutor) : RoomService {
 
@@ -111,4 +114,12 @@ internal class DefaultRoomService @Inject constructor(private val monarchy: Mona
                 }
                 .executeBy(taskExecutor)
     }
+
+    override fun getRoomIdByAlias(roomAlias: String, searchOnServer: Boolean, callback: MatrixCallback<Optional<String>>): Cancelable {
+        return roomIdByAliasTask
+                .configureWith(GetRoomIdByAliasTask.Params(roomAlias, searchOnServer)) {
+                    this.callback = callback
+                }
+                .executeBy(taskExecutor)
+    }
 }

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/RoomAPI.kt

@@ -18,6 +18,7 @@ package im.vector.matrix.android.internal.session.room
 
 import im.vector.matrix.android.api.session.events.model.Content
 import im.vector.matrix.android.api.session.events.model.Event
+import im.vector.matrix.android.internal.session.room.alias.RoomAliasDescription
 import im.vector.matrix.android.api.session.room.model.create.CreateRoomParams
 import im.vector.matrix.android.api.session.room.model.create.CreateRoomResponse
 import im.vector.matrix.android.api.session.room.model.roomdirectory.PublicRoomsParams
@@ -258,4 +259,12 @@ internal interface RoomAPI {
     fun reportContent(@Path("roomId") roomId: String,
                       @Path("eventId") eventId: String,
                       @Body body: ReportContentBody): Call<Unit>
+
+    /**
+     * Get the room ID associated to the room alias.
+     *
+     * @param roomAlias the room alias.
+     */
+    @GET(NetworkConstants.URI_API_PREFIX_PATH_R0 + "directory/room/{roomAlias}")
+    fun getRoomIdByAlias(@Path("roomAlias") roomAlias: String): Call<RoomAliasDescription>
 }

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/RoomModule.kt

@@ -24,6 +24,8 @@ import im.vector.matrix.android.api.session.room.RoomDirectoryService
 import im.vector.matrix.android.api.session.room.RoomService
 import im.vector.matrix.android.internal.session.DefaultFileService
 import im.vector.matrix.android.internal.session.SessionScope
+import im.vector.matrix.android.internal.session.room.alias.DefaultGetRoomIdByAliasTask
+import im.vector.matrix.android.internal.session.room.alias.GetRoomIdByAliasTask
 import im.vector.matrix.android.internal.session.room.create.CreateRoomTask
 import im.vector.matrix.android.internal.session.room.create.DefaultCreateRoomTask
 import im.vector.matrix.android.internal.session.room.directory.DefaultGetPublicRoomTask
@@ -133,4 +135,7 @@ internal abstract class RoomModule {
 
     @Binds
     abstract fun bindFetchEditHistoryTask(fetchEditHistoryTask: DefaultFetchEditHistoryTask): FetchEditHistoryTask
+
+    @Binds
+    abstract fun bindGetRoomIdByAliasTask(getRoomIdByAliasTask: DefaultGetRoomIdByAliasTask): GetRoomIdByAliasTask
 }

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/RoomSummaryUpdater.kt

@@ -20,6 +20,8 @@ import com.zhuinden.monarchy.Monarchy
 import im.vector.matrix.android.api.session.events.model.EventType
 import im.vector.matrix.android.api.session.events.model.toModel
 import im.vector.matrix.android.api.session.room.model.Membership
+import im.vector.matrix.android.api.session.room.model.RoomAliasesContent
+import im.vector.matrix.android.api.session.room.model.RoomCanonicalAliasContent
 import im.vector.matrix.android.api.session.room.model.RoomTopicContent
 import im.vector.matrix.android.internal.database.mapper.ContentMapper
 import im.vector.matrix.android.internal.database.model.EventEntity
@@ -68,7 +70,7 @@ internal class RoomSummaryUpdater @Inject constructor(@UserId private val userId
                unreadNotifications: RoomSyncUnreadNotifications? = null,
                updateMembers: Boolean = false) {
         val roomSummaryEntity = RoomSummaryEntity.where(realm, roomId).findFirst()
-                                ?: realm.createObject(roomId)
+                ?: realm.createObject(roomId)
 
         if (roomSummary != null) {
             if (roomSummary.heroes.isNotEmpty()) {
@@ -91,15 +93,24 @@ internal class RoomSummaryUpdater @Inject constructor(@UserId private val userId
 
         val latestPreviewableEvent = TimelineEventEntity.latestEvent(realm, roomId, includesSending = true, filterTypes = PREVIEWABLE_TYPES)
         val lastTopicEvent = EventEntity.where(realm, roomId, EventType.STATE_ROOM_TOPIC).prev()
+        val lastCanonicalAliasEvent = EventEntity.where(realm, roomId, EventType.STATE_CANONICAL_ALIAS).prev()
+        val lastAliasesEvent = EventEntity.where(realm, roomId, EventType.STATE_ROOM_ALIASES).prev()
 
         roomSummaryEntity.hasUnreadMessages = roomSummaryEntity.notificationCount > 0
-                                              // avoid this call if we are sure there are unread events
-                                              || !isEventRead(monarchy, userId, roomId, latestPreviewableEvent?.eventId)
+                // avoid this call if we are sure there are unread events
+                || !isEventRead(monarchy, userId, roomId, latestPreviewableEvent?.eventId)
 
         roomSummaryEntity.displayName = roomDisplayNameResolver.resolve(roomId).toString()
         roomSummaryEntity.avatarUrl = roomAvatarResolver.resolve(roomId)
         roomSummaryEntity.topic = ContentMapper.map(lastTopicEvent?.content).toModel<RoomTopicContent>()?.topic
         roomSummaryEntity.latestPreviewableEvent = latestPreviewableEvent
+        roomSummaryEntity.canonicalAlias = ContentMapper.map(lastCanonicalAliasEvent?.content).toModel<RoomCanonicalAliasContent>()
+                ?.canonicalAlias
+
+        val roomAliases = ContentMapper.map(lastAliasesEvent?.content).toModel<RoomAliasesContent>()?.aliases ?: emptyList()
+        roomSummaryEntity.aliases.clear()
+        roomSummaryEntity.aliases.addAll(roomAliases)
+        roomSummaryEntity.flatAliases = roomAliases.joinToString(separator = "|", prefix = "|")
 
         if (updateMembers) {
             val otherRoomMembers = RoomMembers(realm, roomId)

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/alias/GetRoomIdByAliasTask.kt

@@ -0,0 +1,54 @@
+/*
+ * Copyright 2019 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package im.vector.matrix.android.internal.session.room.alias
+
+import com.zhuinden.monarchy.Monarchy
+import im.vector.matrix.android.api.util.Optional
+import im.vector.matrix.android.internal.database.model.RoomSummaryEntity
+import im.vector.matrix.android.internal.database.query.findByAlias
+import im.vector.matrix.android.internal.network.executeRequest
+import im.vector.matrix.android.internal.session.room.RoomAPI
+import im.vector.matrix.android.internal.task.Task
+import io.realm.Realm
+import javax.inject.Inject
+
+internal interface GetRoomIdByAliasTask : Task<GetRoomIdByAliasTask.Params, Optional<String>> {
+    data class Params(
+            val roomAlias: String,
+            val searchOnServer: Boolean
+    )
+}
+
+internal class DefaultGetRoomIdByAliasTask @Inject constructor(private val monarchy: Monarchy,
+                                                               private val roomAPI: RoomAPI) : GetRoomIdByAliasTask {
+
+    override suspend fun execute(params: GetRoomIdByAliasTask.Params): Optional<String> {
+        var roomId = Realm.getInstance(monarchy.realmConfiguration).use {
+            RoomSummaryEntity.findByAlias(it, params.roomAlias)?.roomId
+        }
+        return if (roomId != null) {
+            Optional.from(roomId)
+        } else if (!params.searchOnServer) {
+            Optional.from<String>(null)
+        } else {
+            roomId = executeRequest<RoomAliasDescription> {
+                apiCall = roomAPI.getRoomIdByAlias(params.roomAlias)
+            }.roomId
+            Optional.from(roomId)
+        }
+    }
+}

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/alias/RoomAliasDescription.kt

@@ -14,25 +14,20 @@
  * limitations under the License.
  */
 
-package im.vector.matrix.rx
+package im.vector.matrix.android.internal.session.room.alias
 
-import im.vector.matrix.android.api.MatrixCallback
-import im.vector.matrix.android.api.util.Cancelable
-import io.reactivex.SingleEmitter
+import com.squareup.moshi.Json
+import com.squareup.moshi.JsonClass
 
-internal class MatrixCallbackSingle<T>(private val singleEmitter: SingleEmitter<T>) : MatrixCallback<T> {
+@JsonClass(generateAdapter = true)
+internal data class RoomAliasDescription(
+        /**
+         * The room ID for this alias.
+         */
+        @Json(name = "room_id") val roomId: String,
 
-    override fun onSuccess(data: T) {
-        singleEmitter.onSuccess(data)
-    }
-
-    override fun onFailure(failure: Throwable) {
-        singleEmitter.tryOnError(failure)
-    }
-}
-
-fun <T> Cancelable.toSingle(singleEmitter: SingleEmitter<T>) {
-    singleEmitter.setCancellable {
-        this.cancel()
-    }
-}
+        /**
+         * A list of servers that are aware of this room ID.
+         */
+        @Json(name = "servers") val servers: List<String> = emptyList()
+)

vector/src/main/AndroidManifest.xml

@@ -65,7 +65,13 @@
         <activity android:name=".features.roomdirectory.RoomDirectoryActivity" />
         <activity android:name=".features.roomdirectory.roompreview.RoomPreviewActivity" />
         <activity android:name=".features.home.room.filtered.FilteredRoomsActivity" />
-        <activity android:name=".features.home.room.detail.RoomDetailActivity" />
+        <activity
+            android:name=".features.home.room.detail.RoomDetailActivity"
+            android:parentActivityName=".features.home.HomeActivity">
+            <meta-data
+                android:name="android.support.PARENT_ACTIVITY"
+                android:value=".features.home.HomeActivity" />
+        </activity>
         <activity android:name=".features.debug.DebugMenuActivity" />
         <activity android:name=".features.home.createdirect.CreateDirectRoomActivity" />
         <activity android:name=".features.webview.VectorWebViewActivity" />
@@ -102,6 +108,18 @@
         <activity
             android:name=".features.signout.soft.SoftLogoutActivity"
             android:windowSoftInputMode="adjustResize" />
+        <activity android:name=".features.permalink.PermalinkHandlerActivity">
+            <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="http" />
+                <data android:scheme="https" />
+                <data android:host="matrix.to" />
+            </intent-filter>
+        </activity>
         <!-- Services -->
 
         <service

vector/src/main/java/im/vector/riotx/core/di/ScreenComponent.kt

@@ -41,6 +41,7 @@ import im.vector.riotx.features.login.LoginActivity
 import im.vector.riotx.features.media.ImageMediaViewerActivity
 import im.vector.riotx.features.media.VideoMediaViewerActivity
 import im.vector.riotx.features.navigation.Navigator
+import im.vector.riotx.features.permalink.PermalinkHandlerActivity
 import im.vector.riotx.features.rageshake.BugReportActivity
 import im.vector.riotx.features.rageshake.BugReporter
 import im.vector.riotx.features.rageshake.RageShake
@@ -132,6 +133,8 @@ interface ScreenComponent {
 
     fun inject(activity: SoftLogoutActivity)
 
+    fun inject(permalinkHandlerActivity: PermalinkHandlerActivity)
+
     @Component.Factory
     interface Factory {
         fun create(vectorComponent: VectorComponent,

vector/src/main/java/im/vector/riotx/features/home/PermalinkHandler.kt

@@ -1,87 +0,0 @@
-/*
- * Copyright 2019 New Vector Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package im.vector.riotx.features.home
-
-import android.content.Context
-import android.net.Uri
-import im.vector.matrix.android.api.permalinks.PermalinkData
-import im.vector.matrix.android.api.permalinks.PermalinkParser
-import im.vector.matrix.android.api.session.Session
-import im.vector.riotx.features.navigation.Navigator
-import javax.inject.Inject
-
-class PermalinkHandler @Inject constructor(private val session: Session,
-                                           private val navigator: Navigator) {
-
-    fun launch(context: Context, deepLink: String?, navigateToRoomInterceptor: NavigateToRoomInterceptor? = null): Boolean {
-        val uri = deepLink?.let { Uri.parse(it) }
-        return launch(context, uri, navigateToRoomInterceptor)
-    }
-
-    fun launch(context: Context, deepLink: Uri?, navigateToRoomInterceptor: NavigateToRoomInterceptor? = null): Boolean {
-        if (deepLink == null) {
-            return false
-        }
-
-        return when (val permalinkData = PermalinkParser.parse(deepLink)) {
-            is PermalinkData.EventLink    -> {
-                if (navigateToRoomInterceptor?.navToRoom(permalinkData.roomIdOrAlias, permalinkData.eventId) != true) {
-                    openRoom(context, permalinkData.roomIdOrAlias, permalinkData.eventId)
-                }
-
-                true
-            }
-            is PermalinkData.RoomLink     -> {
-                if (navigateToRoomInterceptor?.navToRoom(permalinkData.roomIdOrAlias) != true) {
-                    openRoom(context, permalinkData.roomIdOrAlias)
-                }
-
-                true
-            }
-            is PermalinkData.GroupLink    -> {
-                navigator.openGroupDetail(permalinkData.groupId, context)
-                true
-            }
-            is PermalinkData.UserLink     -> {
-                navigator.openUserDetail(permalinkData.userId, context)
-                true
-            }
-            is PermalinkData.FallbackLink -> {
-                false
-            }
-        }
-    }
-
-    /**
-     * Open room either joined, or not unknown
-     */
-    private fun openRoom(context: Context, roomIdOrAlias: String, eventId: String? = null) {
-        if (session.getRoom(roomIdOrAlias) != null) {
-            navigator.openRoom(context, roomIdOrAlias, eventId)
-        } else {
-            navigator.openNotJoinedRoom(context, roomIdOrAlias, eventId)
-        }
-    }
-}
-
-interface NavigateToRoomInterceptor {
-
-    /**
-     * Return true if the navigation has been intercepted
-     */
-    fun navToRoom(roomId: String, eventId: String? = null): Boolean
-}

vector/src/main/java/im/vector/riotx/features/home/room/detail/RoomDetailFragment.kt

@@ -86,8 +86,8 @@ import im.vector.riotx.features.autocomplete.command.CommandAutocompletePolicy
 import im.vector.riotx.features.autocomplete.user.AutocompleteUserPresenter
 import im.vector.riotx.features.command.Command
 import im.vector.riotx.features.home.AvatarRenderer
-import im.vector.riotx.features.home.NavigateToRoomInterceptor
-import im.vector.riotx.features.home.PermalinkHandler
+import im.vector.riotx.features.permalink.NavigateToRoomInterceptor
+import im.vector.riotx.features.permalink.PermalinkHandler
 import im.vector.riotx.features.home.getColorFromUserId
 import im.vector.riotx.features.home.room.detail.composer.TextComposerAction
 import im.vector.riotx.features.home.room.detail.composer.TextComposerView
@@ -113,6 +113,8 @@ import im.vector.riotx.features.reactions.EmojiReactionPickerActivity
 import im.vector.riotx.features.settings.VectorPreferences
 import im.vector.riotx.features.share.SharedData
 import im.vector.riotx.features.themes.ThemeUtils
+import io.reactivex.android.schedulers.AndroidSchedulers
+import io.reactivex.schedulers.Schedulers
 import kotlinx.android.parcel.Parcelize
 import kotlinx.android.synthetic.main.fragment_room_detail.*
 import kotlinx.android.synthetic.main.merge_composer_layout.view.*
@@ -851,30 +853,33 @@ class RoomDetailFragment @Inject constructor(
 // TimelineEventController.Callback ************************************************************
 
     override fun onUrlClicked(url: String): Boolean {
-        val managed = permalinkHandler.launch(requireActivity(), url, object : NavigateToRoomInterceptor {
-            override fun navToRoom(roomId: String, eventId: String?): Boolean {
-                // Same room?
-                if (roomId == roomDetailArgs.roomId) {
-                    // Navigation to same room
-                    if (eventId == null) {
-                        showSnackWithMessage(getString(R.string.navigate_to_room_when_already_in_the_room))
-                    } else {
-                        // Highlight and scroll to this event
-                        roomDetailViewModel.handle(RoomDetailAction.NavigateToEvent(eventId, true))
+        permalinkHandler
+                .launch(requireActivity(), url, object : NavigateToRoomInterceptor {
+                    override fun navToRoom(roomId: String?, eventId: String?): Boolean {
+                        // Same room?
+                        if (roomId == roomDetailArgs.roomId) {
+                            // Navigation to same room
+                            if (eventId == null) {
+                                showSnackWithMessage(getString(R.string.navigate_to_room_when_already_in_the_room))
+                            } else {
+                                // Highlight and scroll to this event
+                                roomDetailViewModel.handle(RoomDetailAction.NavigateToEvent(eventId, true))
+                            }
+                            return true
+                        }
+                        // Not handled
+                        return false
+                    }
+                })
+                .subscribeOn(Schedulers.io())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe { managed ->
+                    if (!managed) {
+                        // Open in external browser, in a new Tab
+                        openUrlInExternalBrowser(requireContext(), url)
                     }
-                    return true
                 }
-
-                // Not handled
-                return false
-            }
-        })
-
-        if (!managed) {
-            // Open in external browser, in a new Tab
-            openUrlInExternalBrowser(requireContext(), url)
-        }
-
+                .disposeOnDestroyView()
         // In fact it is always managed
         return true
     }
@@ -1022,12 +1027,15 @@ class RoomDetailFragment @Inject constructor(
     }
 
     override fun onRoomCreateLinkClicked(url: String) {
-        permalinkHandler.launch(requireContext(), url, object : NavigateToRoomInterceptor {
-            override fun navToRoom(roomId: String, eventId: String?): Boolean {
-                requireActivity().finish()
-                return false
-            }
-        })
+        permalinkHandler
+                .launch(requireContext(), url, object : NavigateToRoomInterceptor {
+                    override fun navToRoom(roomId: String?, eventId: String?): Boolean {
+                        requireActivity().finish()
+                        return false
+                    }
+                })
+                .subscribe()
+                .disposeOnDestroyView()
     }
 
     override fun onReadReceiptsClicked(readReceipts: List<ReadReceiptData>) {

vector/src/main/java/im/vector/riotx/features/navigation/DefaultNavigator.kt

@@ -38,14 +38,45 @@ import im.vector.riotx.features.share.SharedData
 import timber.log.Timber
 import javax.inject.Inject
 import javax.inject.Singleton
+import androidx.core.app.TaskStackBuilder
 
 @Singleton
 class DefaultNavigator @Inject constructor() : Navigator {
 
-    override fun openRoom(context: Context, roomId: String, eventId: String?) {
+    override fun openRoom(context: Context, roomId: String, eventId: String?, buildTask: Boolean) {
         val args = RoomDetailArgs(roomId, eventId)
         val intent = RoomDetailActivity.newIntent(context, args)
-        context.startActivity(intent)
+        if (buildTask) {
+            val stackBuilder = TaskStackBuilder.create(context)
+            stackBuilder.addNextIntentWithParentStack(intent)
+            stackBuilder.startActivities()
+        } else {
+            context.startActivity(intent)
+        }
+    }
+
+    override fun openNotJoinedRoom(context: Context, roomIdOrAlias: String?, eventId: String?, buildTask: Boolean) {
+        if (context is VectorBaseActivity) {
+            context.notImplemented("Open not joined room")
+        } else {
+            context.toast(R.string.not_implemented)
+        }
+    }
+
+    override fun openGroupDetail(groupId: String, context: Context, buildTask: Boolean) {
+        if (context is VectorBaseActivity) {
+            context.notImplemented("Open group detail")
+        } else {
+            context.toast(R.string.not_implemented)
+        }
+    }
+
+    override fun openUserDetail(userId: String, context: Context, buildTask: Boolean) {
+        if (context is VectorBaseActivity) {
+            context.notImplemented("Open user detail")
+        } else {
+            context.toast(R.string.not_implemented)
+        }
     }
 
     override fun openRoomForSharing(activity: Activity, roomId: String, sharedData: SharedData) {
@@ -55,14 +86,6 @@ class DefaultNavigator @Inject constructor() : Navigator {
         activity.finish()
     }
 
-    override fun openNotJoinedRoom(context: Context, roomIdOrAlias: String, eventId: String?) {
-        if (context is VectorBaseActivity) {
-            context.notImplemented("Open not joined room")
-        } else {
-            context.toast(R.string.not_implemented)
-        }
-    }
-
     override fun openRoomPreview(publicRoom: PublicRoom, context: Context) {
         val intent = RoomPreviewActivity.getIntent(context, publicRoom)
         context.startActivity(intent)
@@ -105,14 +128,6 @@ class DefaultNavigator @Inject constructor() : Navigator {
         context.startActivity(KeysBackupManageActivity.intent(context))
     }
 
-    override fun openGroupDetail(groupId: String, context: Context) {
-        Timber.v("Open group detail $groupId")
-    }
-
-    override fun openUserDetail(userId: String, context: Context) {
-        Timber.v("Open user detail $userId")
-    }
-
     override fun openRoomSettings(context: Context, roomId: String) {
         Timber.v("Open room settings$roomId")
     }

vector/src/main/java/im/vector/riotx/features/navigation/Navigator.kt

@@ -23,11 +23,11 @@ import im.vector.riotx.features.share.SharedData
 
 interface Navigator {
 
-    fun openRoom(context: Context, roomId: String, eventId: String? = null)
+    fun openRoom(context: Context, roomId: String, eventId: String? = null, buildTask: Boolean = false)
 
     fun openRoomForSharing(activity: Activity, roomId: String, sharedData: SharedData)
 
-    fun openNotJoinedRoom(context: Context, roomIdOrAlias: String, eventId: String? = null)
+    fun openNotJoinedRoom(context: Context, roomIdOrAlias: String?, eventId: String? = null, buildTask: Boolean = false)
 
     fun openRoomPreview(publicRoom: PublicRoom, context: Context)
 
@@ -47,9 +47,9 @@ interface Navigator {
 
     fun openKeysBackupManager(context: Context)
 
-    fun openGroupDetail(groupId: String, context: Context)
+    fun openGroupDetail(groupId: String, context: Context, buildTask: Boolean = false)
 
-    fun openUserDetail(userId: String, context: Context)
+    fun openUserDetail(userId: String, context: Context, buildTask: Boolean = false)
 
     fun openRoomSettings(context: Context, roomId: String)
 }

vector/src/main/java/im/vector/riotx/features/permalink/PermalinkHandler.kt

@@ -0,0 +1,107 @@
+/*
+ * Copyright 2019 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package im.vector.riotx.features.permalink
+
+import android.content.Context
+import android.net.Uri
+import im.vector.matrix.android.api.permalinks.PermalinkData
+import im.vector.matrix.android.api.permalinks.PermalinkParser
+import im.vector.matrix.android.api.session.Session
+import im.vector.matrix.android.api.util.Optional
+import im.vector.matrix.rx.rx
+import im.vector.riotx.features.navigation.Navigator
+import io.reactivex.Single
+import io.reactivex.android.schedulers.AndroidSchedulers
+import io.reactivex.schedulers.Schedulers
+import javax.inject.Inject
+
+class PermalinkHandler @Inject constructor(private val session: Session,
+                                           private val navigator: Navigator) {
+
+    fun launch(
+            context: Context,
+            deepLink: String?,
+            navigateToRoomInterceptor: NavigateToRoomInterceptor? = null,
+            buildTask: Boolean = false
+    ): Single<Boolean> {
+        val uri = deepLink?.let { Uri.parse(it) }
+        return launch(context, uri, navigateToRoomInterceptor, buildTask)
+    }
+
+    fun launch(
+            context: Context,
+            deepLink: Uri?,
+            navigateToRoomInterceptor: NavigateToRoomInterceptor? = null,
+            buildTask: Boolean = false
+    ): Single<Boolean> {
+        if (deepLink == null) {
+            return Single.just(false)
+        }
+        return when (val permalinkData = PermalinkParser.parse(deepLink)) {
+            is PermalinkData.RoomLink     -> {
+                permalinkData.getRoomId()
+                        .observeOn(AndroidSchedulers.mainThread())
+                        .map {
+                            val roomId = it.getOrNull()
+                            if (navigateToRoomInterceptor?.navToRoom(roomId) != true) {
+                                openRoom(context, roomId, permalinkData.eventId, buildTask)
+                            }
+                            true
+                        }
+            }
+            is PermalinkData.GroupLink    -> {
+                navigator.openGroupDetail(permalinkData.groupId, context, buildTask)
+                Single.just(true)
+            }
+            is PermalinkData.UserLink     -> {
+                navigator.openUserDetail(permalinkData.userId, context, buildTask)
+                Single.just(true)
+            }
+            is PermalinkData.FallbackLink -> {
+                Single.just(false)
+            }
+        }
+    }
+
+    private fun PermalinkData.RoomLink.getRoomId(): Single<Optional<String>> {
+        return if (isRoomAlias) {
+            // At the moment we are not fetching on the server as we don't handle not join room
+            session.rx().getRoomIdByAlias(roomIdOrAlias, false).subscribeOn(Schedulers.io())
+        } else {
+            Single.just(Optional.from(roomIdOrAlias))
+        }
+    }
+
+    /**
+     * Open room either joined, or not unknown
+     */
+    private fun openRoom(context: Context, roomId: String?, eventId: String? = null, buildTask: Boolean) {
+        return if (roomId != null && session.getRoom(roomId) != null) {
+            navigator.openRoom(context, roomId, eventId, buildTask)
+        } else {
+            navigator.openNotJoinedRoom(context, roomId, eventId, buildTask)
+        }
+    }
+}
+
+interface NavigateToRoomInterceptor {
+
+    /**
+     * Return true if the navigation has been intercepted
+     */
+    fun navToRoom(roomId: String?, eventId: String? = null): Boolean
+}

vector/src/main/java/im/vector/riotx/features/permalink/PermalinkHandlerActivity.kt

@@ -0,0 +1,74 @@
+/*
+ * Copyright 2019 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package im.vector.riotx.features.permalink
+
+import android.content.Intent
+import android.os.Bundle
+import im.vector.riotx.R
+import im.vector.riotx.core.di.ActiveSessionHolder
+import im.vector.riotx.core.di.ScreenComponent
+import im.vector.riotx.core.extensions.replaceFragment
+import im.vector.riotx.core.platform.VectorBaseActivity
+import im.vector.riotx.core.utils.toast
+import im.vector.riotx.features.home.LoadingFragment
+import im.vector.riotx.features.login.LoginActivity
+import io.reactivex.android.schedulers.AndroidSchedulers
+import kotlinx.android.synthetic.debug.activity_test_material_theme.*
+import java.util.concurrent.TimeUnit
+import javax.inject.Inject
+
+class PermalinkHandlerActivity : VectorBaseActivity() {
+
+    @Inject lateinit var permalinkHandler: PermalinkHandler
+    @Inject lateinit var sessionHolder: ActiveSessionHolder
+
+    override fun injectWith(injector: ScreenComponent) {
+        injector.inject(this)
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_simple)
+        if (isFirstCreation()) {
+            replaceFragment(R.id.simpleFragmentContainer, LoadingFragment::class.java)
+        }
+        // If we are not logged in, open login screen.
+        // In the future, we might want to relaunch the process after login.
+        if (!sessionHolder.hasActiveSession()) {
+            startLoginActivity()
+            return
+        }
+        val uri = intent.dataString
+        permalinkHandler.launch(this, uri, buildTask = true)
+                .delay(500, TimeUnit.MILLISECONDS)
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe { isHandled ->
+                    if (!isHandled) {
+                        toast(R.string.permalink_malformed)
+                    }
+                    finish()
+                }
+                .disposeOnDestroy()
+    }
+
+    private fun startLoginActivity() {
+        val intent = LoginActivity.newIntent(this, null)
+        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_CLEAR_TASK or Intent.FLAG_ACTIVITY_NEW_TASK)
+        startActivity(intent)
+        finish()
+    }
+}

vector/src/main/java/im/vector/riotx/features/signout/soft/SoftLogoutFragment.kt

@@ -27,8 +27,6 @@ import im.vector.riotx.core.dialogs.withColoredButton
 import im.vector.riotx.core.extensions.cleanup
 import im.vector.riotx.core.extensions.configureWith
 import im.vector.riotx.core.extensions.hideKeyboard
-import im.vector.riotx.features.MainActivity
-import im.vector.riotx.features.MainActivityArgs
 import im.vector.riotx.features.login.AbstractLoginFragment
 import im.vector.riotx.features.login.LoginAction
 import im.vector.riotx.features.login.LoginMode

vector/src/main/res/values/strings_riotX.xml

@@ -161,4 +161,5 @@
     <string name="soft_logout_clear_data_dialog_submit">Clear data</string>
     <string name="soft_logout_sso_not_same_user_error">The current session is for user %1$s and you provide credentials for user %2$s. This is not supported by RiotX.\nPlease first clear data, then sign in again on another account.</string>
 
+    <string name="permalink_malformed">Your matrix.to link was malformed</string>
 </resources>