matrix-dart-sdk/lib/src/room.dart

1792 lines
60 KiB
Dart

// @dart=2.9
/*
* Famedly Matrix SDK
* Copyright (C) 2019, 2020, 2021 Famedly GmbH
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import 'dart:async';
import 'dart:convert';
import 'package:html_unescape/html_unescape.dart';
import 'package:matrix/src/utils/space_child.dart';
import '../matrix.dart';
import 'client.dart';
import 'event.dart';
import 'timeline.dart';
import 'user.dart';
import 'utils/crypto/encrypted_file.dart';
import 'utils/event_update.dart';
import 'utils/markdown.dart';
import 'utils/marked_unread.dart';
import 'utils/matrix_file.dart';
import 'utils/matrix_localizations.dart';
enum PushRuleState { notify, mentionsOnly, dontNotify }
enum JoinRules { public, knock, invite, private }
enum GuestAccess { canJoin, forbidden }
enum HistoryVisibility { invited, joined, shared, worldReadable }
const Map<GuestAccess, String> _guestAccessMap = {
GuestAccess.canJoin: 'can_join',
GuestAccess.forbidden: 'forbidden',
};
const Map<HistoryVisibility, String> _historyVisibilityMap = {
HistoryVisibility.invited: 'invited',
HistoryVisibility.joined: 'joined',
HistoryVisibility.shared: 'shared',
HistoryVisibility.worldReadable: 'world_readable',
};
const String messageSendingStatusKey =
'com.famedly.famedlysdk.message_sending_status';
const String sortOrderKey = 'com.famedly.famedlysdk.sort_order';
/// Represents a Matrix room.
class Room {
/// The full qualified Matrix ID for the room in the format '!localid:server.abc'.
final String id;
/// Membership status of the user for this room.
Membership membership;
/// The count of unread notifications.
int notificationCount;
/// The count of highlighted notifications.
int highlightCount;
/// A token that can be supplied to the from parameter of the rooms/{roomId}/messages endpoint.
String prev_batch;
RoomSummary summary;
@deprecated
List<String> get mHeroes => summary.mHeroes;
@deprecated
int get mJoinedMemberCount => summary.mJoinedMemberCount;
@deprecated
int get mInvitedMemberCount => summary.mInvitedMemberCount;
/// The room states are a key value store of the key (`type`,`state_key`) => State(event).
/// In a lot of cases the `state_key` might be an empty string. You **should** use the
/// methods `getState()` and `setState()` to interact with the room states.
Map<String, Map<String, Event>> states = {};
/// Key-Value store for ephemerals.
Map<String, BasicRoomEvent> ephemerals = {};
/// Key-Value store for private account data only visible for this user.
Map<String, BasicRoomEvent> roomAccountData = {};
double _newestSortOrder;
double _oldestSortOrder;
Map<String, dynamic> toJson() => {
'id': id,
'membership': membership.toString().split('.').last,
'highlight_count': highlightCount,
'notification_count': notificationCount,
'prev_batch': prev_batch,
'summary': summary.toJson(),
'newest_sort_order': 0,
'oldest_sort_order': 0,
};
factory Room.fromJson(Map<String, dynamic> json, [Client client]) => Room(
client: client,
id: json['id'],
membership: Membership.values.singleWhere(
(m) => m.toString() == 'Membership.${json['membership']}',
orElse: () => Membership.join,
),
notificationCount: json['notification_count'],
highlightCount: json['highlight_count'],
prev_batch: json['prev_batch'],
summary:
RoomSummary.fromJson(Map<String, dynamic>.from(json['summary'])),
newestSortOrder: json['newest_sort_order'].toDouble(),
oldestSortOrder: json['oldest_sort_order'].toDouble(),
);
double get newSortOrder {
var now = DateTime.now().millisecondsSinceEpoch.toDouble();
if (_newestSortOrder >= now) {
now = _newestSortOrder + 1;
}
_newestSortOrder = now;
return _newestSortOrder;
}
double get oldSortOrder {
_oldestSortOrder--;
return _oldestSortOrder;
}
void resetSortOrder() {
_oldestSortOrder = _newestSortOrder = 0.0;
}
Future<void> updateSortOrder() async {
await client.database?.updateRoomSortOrder(
_oldestSortOrder, _newestSortOrder, client.id, id);
}
/// Flag if the room is partial, meaning not all state events have been loaded yet
bool partial = true;
/// Post-loads the room.
/// This load all the missing state events for the room from the database
/// If the room has already been loaded, this does nothing.
Future<void> postLoad() async {
if (!partial || client.database == null) {
return;
}
final allStates = await client.database
.getUnimportantRoomEventStatesForRoom(
client.id, client.importantStateEvents.toList(), this);
for (final state in allStates) {
setState(state);
}
partial = false;
}
/// Returns the [Event] for the given [typeKey] and optional [stateKey].
/// If no [stateKey] is provided, it defaults to an empty string.
Event getState(String typeKey, [String stateKey = '']) =>
states[typeKey] != null ? states[typeKey][stateKey] : null;
/// Adds the [state] to this room and overwrites a state with the same
/// typeKey/stateKey key pair if there is one.
void setState(Event state) {
// Decrypt if necessary
if (state.type == EventTypes.Encrypted && client.encryptionEnabled) {
try {
state = client.encryption.decryptRoomEventSync(id, state);
} catch (e, s) {
Logs().e('[LibOlm] Could not decrypt room state', e, s);
}
}
if (!(state.stateKey is String) &&
![EventTypes.Message, EventTypes.Sticker, EventTypes.Encrypted]
.contains(state.type) ||
(state.type == EventTypes.Message &&
state.messageType.startsWith('m.room.verification.'))) {
return;
}
final oldStateEvent = getState(state.type, state.stateKey ?? '');
if (oldStateEvent != null && oldStateEvent.sortOrder >= state.sortOrder) {
return;
}
if (!states.containsKey(state.type)) {
states[state.type] = {};
}
states[state.type][state.stateKey ?? ''] = state;
}
/// ID of the fully read marker event.
String get fullyRead => roomAccountData['m.fully_read'] != null
? roomAccountData['m.fully_read'].content['event_id']
: '';
/// If something changes, this callback will be triggered. Will return the
/// room id.
final StreamController<String> onUpdate = StreamController.broadcast();
/// If there is a new session key received, this will be triggered with
/// the session ID.
final StreamController<String> onSessionKeyReceived =
StreamController.broadcast();
/// The name of the room if set by a participant.
String get name => getState(EventTypes.RoomName) != null &&
getState(EventTypes.RoomName).content['name'] is String
? getState(EventTypes.RoomName).content['name']
: '';
/// The pinned events for this room. If there are none this returns an empty
/// list.
List<String> get pinnedEventIds => getState(EventTypes.RoomPinnedEvents) !=
null
? (getState(EventTypes.RoomPinnedEvents).content['pinned'] is List<String>
? getState(EventTypes.RoomPinnedEvents).content['pinned']
: <String>[])
: <String>[];
/// Returns a localized displayname for this server. If the room is a groupchat
/// without a name, then it will return the localized version of 'Group with Alice' instead
/// of just 'Alice' to make it different to a direct chat.
/// Empty chats will become the localized version of 'Empty Chat'.
/// This method requires a localization class which implements [MatrixLocalizations]
String getLocalizedDisplayname(MatrixLocalizations i18n) {
if ((name?.isEmpty ?? true) &&
(canonicalAlias?.isEmpty ?? true) &&
!isDirectChat &&
(summary.mHeroes != null && summary.mHeroes.isNotEmpty)) {
return i18n.groupWith(displayname);
}
if (displayname?.isNotEmpty ?? false) {
return displayname;
}
return i18n.emptyChat;
}
/// The topic of the room if set by a participant.
String get topic => getState(EventTypes.RoomTopic) != null &&
getState(EventTypes.RoomTopic).content['topic'] is String
? getState(EventTypes.RoomTopic).content['topic']
: '';
/// The avatar of the room if set by a participant.
Uri get avatar {
if (getState(EventTypes.RoomAvatar) != null &&
getState(EventTypes.RoomAvatar).content['url'] is String) {
return Uri.tryParse(getState(EventTypes.RoomAvatar).content['url']);
}
if (summary.mHeroes != null &&
summary.mHeroes.length == 1 &&
getState(EventTypes.RoomMember, summary.mHeroes.first) != null) {
return getState(EventTypes.RoomMember, summary.mHeroes.first)
.asUser
.avatarUrl;
}
if (membership == Membership.invite &&
getState(EventTypes.RoomMember, client.userID) != null) {
return getState(EventTypes.RoomMember, client.userID).sender.avatarUrl;
}
return null;
}
/// The address in the format: #roomname:homeserver.org.
String get canonicalAlias =>
getState(EventTypes.RoomCanonicalAlias) != null &&
getState(EventTypes.RoomCanonicalAlias).content['alias'] is String
? getState(EventTypes.RoomCanonicalAlias).content['alias']
: '';
/// Sets the canonical alias. If the [canonicalAlias] is not yet an alias of
/// this room, it will create one.
Future<void> setCanonicalAlias(String canonicalAlias) async {
final aliases = await client.getLocalAliases(id);
if (!aliases.contains(canonicalAlias)) {
await client.setRoomAlias(canonicalAlias, id);
}
await client.setRoomStateWithKey(id, EventTypes.RoomCanonicalAlias, '', {
'alias': canonicalAlias,
});
}
/// If this room is a direct chat, this is the matrix ID of the user.
/// Returns null otherwise.
String get directChatMatrixID {
String returnUserId;
if (membership == Membership.invite) {
final invitation = getState(EventTypes.RoomMember, client.userID);
if (invitation != null && invitation.content['is_direct'] == true) {
return invitation.senderId;
}
}
if (client.directChats is Map<String, dynamic>) {
client.directChats.forEach((String userId, dynamic roomIds) {
if (roomIds is List<dynamic> && roomIds.contains(id)) {
returnUserId = userId;
}
});
}
return returnUserId;
}
/// Wheither this is a direct chat or not
bool get isDirectChat => directChatMatrixID != null;
/// Must be one of [all, mention]
String notificationSettings;
Event get lastEvent {
// as lastEvent calculation is based on the state events we unfortunately cannot
// use sortOrder here: With many state events we just know which ones are the
// newest ones, without knowing in which order they actually happened. As such,
// using the origin_server_ts is the best guess for this algorithm. While not
// perfect, it is only used for the room preview in the room list and sorting
// said room list, so it should be good enough.
var lastTime = DateTime.fromMillisecondsSinceEpoch(0);
final lastEvents =
client.roomPreviewLastEvents.map(getState).where((e) => e != null);
var lastEvent = lastEvents.isEmpty
? null
: lastEvents.reduce((a, b) {
if (a.sortOrder == b.sortOrder) {
// if two events have the same sort order we want to give encrypted events a lower priority
// This is so that if the same event exists in the state both encrypted *and* unencrypted,
// the unencrypted one is picked
return a.type == EventTypes.Encrypted ? b : a;
}
return a.sortOrder > b.sortOrder ? a : b;
});
if (lastEvent == null) {
states.forEach((final String key, final entry) {
if (!entry.containsKey('')) return;
final state = entry[''];
if (state.originServerTs != null &&
state.originServerTs.millisecondsSinceEpoch >
lastTime.millisecondsSinceEpoch) {
lastTime = state.originServerTs;
lastEvent = state;
}
});
}
return lastEvent;
}
/// Returns a list of all current typing users.
List<User> get typingUsers {
if (!ephemerals.containsKey('m.typing')) return [];
final List<dynamic> typingMxid = ephemerals['m.typing'].content['user_ids'];
return typingMxid.cast<String>().map(getUserByMXIDSync).toList();
}
/// Your current client instance.
final Client client;
Room({
this.id,
this.membership = Membership.join,
int notificationCount,
int highlightCount,
String prev_batch,
this.client,
this.notificationSettings,
Map<String, BasicRoomEvent> roomAccountData,
double newestSortOrder = 0.0,
double oldestSortOrder = 0.0,
RoomSummary summary,
}) : _newestSortOrder = newestSortOrder,
_oldestSortOrder = oldestSortOrder,
notificationCount = notificationCount ?? 0,
highlightCount = highlightCount ?? 0,
prev_batch = prev_batch ?? '',
roomAccountData = roomAccountData ?? <String, BasicRoomEvent>{},
summary = summary ??
RoomSummary.fromJson({
'm.joined_member_count': 0,
'm.invited_member_count': 0,
'm.heroes': [],
});
/// The default count of how much events should be requested when requesting the
/// history of this room.
static const int defaultHistoryCount = 100;
/// Calculates the displayname. First checks if there is a name, then checks for a canonical alias and
/// then generates a name from the heroes.
String get displayname {
if (name != null && name.isNotEmpty) return name;
if (canonicalAlias != null &&
canonicalAlias.isNotEmpty &&
canonicalAlias.length > 3) {
return canonicalAlias.localpart;
}
var heroes = <String>[];
if (summary.mHeroes != null &&
summary.mHeroes.isNotEmpty &&
summary.mHeroes.any((h) => h.isNotEmpty)) {
heroes = summary.mHeroes;
} else {
if (states[EventTypes.RoomMember] is Map<String, dynamic>) {
for (final entry in states[EventTypes.RoomMember].entries) {
final state = entry.value;
if (state.type == EventTypes.RoomMember &&
state.stateKey != client?.userID) heroes.add(state.stateKey);
}
}
}
if (heroes.isNotEmpty) {
return heroes
.where((hero) => hero.isNotEmpty)
.map((hero) => getUserByMXIDSync(hero).calcDisplayname())
.join(', ');
}
if (membership == Membership.invite &&
getState(EventTypes.RoomMember, client.userID) != null) {
return getState(EventTypes.RoomMember, client.userID)
.sender
.calcDisplayname();
}
return 'Empty chat';
}
@Deprecated('Use [lastEvent.body] instead')
String get lastMessage {
if (lastEvent != null) {
return lastEvent.body;
} else {
return '';
}
}
/// When the last message received.
DateTime get timeCreated {
if (lastEvent != null) {
return lastEvent.originServerTs;
}
return DateTime.now();
}
/// Call the Matrix API to change the name of this room. Returns the event ID of the
/// new m.room.name event.
Future<String> setName(String newName) => client.setRoomStateWithKey(
id,
EventTypes.RoomName,
'',
{'name': newName},
);
/// Call the Matrix API to change the topic of this room.
Future<String> setDescription(String newName) => client.setRoomStateWithKey(
id,
EventTypes.RoomTopic,
'',
{'topic': newName},
);
/// Add a tag to the room.
Future<void> addTag(String tag, {double order}) => client.setRoomTag(
client.userID,
id,
tag,
order: order,
);
/// Removes a tag from the room.
Future<void> removeTag(String tag) => client.deleteRoomTag(
client.userID,
id,
tag,
);
// Tag is part of client-to-server-API, so it uses strict parsing.
// For roomAccountData, permissive parsing is more suitable,
// so it is implemented here.
static Tag _tryTagFromJson(Object o) {
if (o is Map<String, dynamic>) {
return Tag(
order: o.tryGet<num>('order')?.toDouble(),
additionalProperties: Map.from(o)..remove('order'));
}
return Tag();
}
/// Returns all tags for this room.
Map<String, Tag> get tags {
if (roomAccountData['m.tag'] == null ||
!(roomAccountData['m.tag'].content['tags'] is Map)) {
return {};
}
final tags = (roomAccountData['m.tag'].content['tags'] as Map)
.map((k, v) => MapEntry<String, Tag>(k, _tryTagFromJson(v)));
tags.removeWhere((k, v) => !TagType.isValid(k));
return tags;
}
bool get markedUnread {
return MarkedUnread.fromJson(
roomAccountData[EventType.markedUnread]?.content ?? {})
.unread;
}
/// Returns true if this room is unread
bool get isUnread => notificationCount > 0 || markedUnread;
/// Sets an unread flag manually for this room. Similar to the setUnreadMarker
/// this changes the local account data model before syncing it to make sure
/// this works if there is no connection to the homeserver.
Future<void> setUnread(bool unread) async {
final content = MarkedUnread(unread).toJson();
await _handleFakeSync(SyncUpdate(nextBatch: '')
..rooms = (RoomsUpdate()
..join = (({}..[id] = (JoinedRoomUpdate()
..accountData = [
BasicRoomEvent(
content: content,
roomId: id,
type: EventType.markedUnread,
)
])))));
await client.setAccountDataPerRoom(
client.userID,
id,
EventType.markedUnread,
content,
);
if (unread == false && lastEvent != null) {
await setReadMarker(
lastEvent.eventId,
mRead: lastEvent.eventId,
);
}
}
/// Returns true if this room has a m.favourite tag.
bool get isFavourite => tags[TagType.favourite] != null;
/// Sets the m.favourite tag for this room.
Future<void> setFavourite(bool favourite) =>
favourite ? addTag(TagType.favourite) : removeTag(TagType.favourite);
/// Call the Matrix API to change the pinned events of this room.
Future<String> setPinnedEvents(List<String> pinnedEventIds) =>
client.setRoomStateWithKey(
id,
EventTypes.RoomPinnedEvents,
'',
{'pinned': pinnedEventIds},
);
/// return all current emote packs for this room
@deprecated
Map<String, Map<String, String>> get emotePacks =>
getImagePacksFlat(ImagePackUsage.emoticon);
/// Sends a normal text message to this room. Returns the event ID generated
/// by the server for this message.
Future<String> sendTextEvent(String message,
{String txid,
Event inReplyTo,
String editEventId,
bool parseMarkdown = true,
@deprecated Map<String, Map<String, String>> emotePacks,
bool parseCommands = true,
String msgtype = MessageTypes.Text}) {
if (parseCommands) {
return client.parseAndRunCommand(this, message,
inReplyTo: inReplyTo, editEventId: editEventId, txid: txid);
}
final event = <String, dynamic>{
'msgtype': msgtype,
'body': message,
};
if (parseMarkdown) {
final mentionMap = <String, String>{
for (final user in getParticipants()) user.mention: user.id
};
final html = markdown(event['body'],
emotePacks: getImagePacksFlat(ImagePackUsage.emoticon),
mentionMap: mentionMap);
// if the decoded html is the same as the body, there is no need in sending a formatted message
if (HtmlUnescape().convert(html.replaceAll(RegExp(r'<br />\n?'), '\n')) !=
event['body']) {
event['format'] = 'org.matrix.custom.html';
event['formatted_body'] = html;
}
}
return sendEvent(event,
txid: txid, inReplyTo: inReplyTo, editEventId: editEventId);
}
/// Sends a reaction to an event with an [eventId] and the content [key] into a room.
/// Returns the event ID generated by the server for this reaction.
Future<String> sendReaction(String eventId, String key, {String txid}) {
return sendEvent({
'm.relates_to': {
'rel_type': RelationshipTypes.reaction,
'event_id': eventId,
'key': key,
},
}, type: EventTypes.Reaction, txid: txid);
}
/// Sends the location with description [body] and geo URI [geoUri] into a room.
/// Returns the event ID generated by the server for this message.
Future<String> sendLocation(String body, String geoUri, {String txid}) {
final event = <String, dynamic>{
'msgtype': 'm.location',
'body': body,
'geo_uri': geoUri,
};
return sendEvent(event, txid: txid);
}
/// Sends a [file] to this room after uploading it. Returns the mxc uri of
/// the uploaded file. If [waitUntilSent] is true, the future will wait until
/// the message event has received the server. Otherwise the future will only
/// wait until the file has been uploaded.
/// Optionally specify [extraContent] to tack on to the event.
Future<Uri> sendFileEvent(
MatrixFile file, {
String txid,
Event inReplyTo,
String editEventId,
bool waitUntilSent = false,
MatrixImageFile thumbnail,
Map<String, dynamic> extraContent,
}) async {
MatrixFile uploadFile = file; // ignore: omit_local_variable_types
MatrixFile uploadThumbnail = thumbnail; // ignore: omit_local_variable_types
EncryptedFile encryptedFile;
EncryptedFile encryptedThumbnail;
if (encrypted && client.fileEncryptionEnabled) {
encryptedFile = await file.encrypt();
uploadFile = encryptedFile.toMatrixFile();
if (thumbnail != null) {
encryptedThumbnail = await thumbnail.encrypt();
uploadThumbnail = encryptedThumbnail.toMatrixFile();
}
}
final uploadResp = await client.uploadContent(
uploadFile.bytes,
filename: uploadFile.name,
contentType: uploadFile.mimeType,
);
final thumbnailUploadResp = uploadThumbnail != null
? await client.uploadContent(
uploadThumbnail.bytes,
filename: uploadThumbnail.name,
contentType: uploadThumbnail.mimeType,
)
: null;
// Send event
final content = <String, dynamic>{
'msgtype': file.msgType,
'body': file.name,
'filename': file.name,
if (encryptedFile == null) 'url': uploadResp.toString(),
if (encryptedFile != null)
'file': {
'url': uploadResp.toString(),
'mimetype': file.mimeType,
'v': 'v2',
'key': {
'alg': 'A256CTR',
'ext': true,
'k': encryptedFile.k,
'key_ops': ['encrypt', 'decrypt'],
'kty': 'oct'
},
'iv': encryptedFile.iv,
'hashes': {'sha256': encryptedFile.sha256}
},
'info': {
...file.info,
if (thumbnail != null && encryptedThumbnail == null)
'thumbnail_url': thumbnailUploadResp,
if (thumbnail != null && encryptedThumbnail != null)
'thumbnail_file': {
'url': thumbnailUploadResp.toString(),
'mimetype': thumbnail.mimeType,
'v': 'v2',
'key': {
'alg': 'A256CTR',
'ext': true,
'k': encryptedThumbnail.k,
'key_ops': ['encrypt', 'decrypt'],
'kty': 'oct'
},
'iv': encryptedThumbnail.iv,
'hashes': {'sha256': encryptedThumbnail.sha256}
},
if (thumbnail != null) 'thumbnail_info': thumbnail.info,
},
if (extraContent != null) ...extraContent,
};
final sendResponse = sendEvent(
content,
txid: txid,
inReplyTo: inReplyTo,
editEventId: editEventId,
);
if (waitUntilSent) {
await sendResponse;
}
return uploadResp;
}
Future<String> _sendContent(
String type,
Map<String, dynamic> content, {
String txid,
}) async {
txid ??= client.generateUniqueTransactionId();
final mustEncrypt = encrypted && client.encryptionEnabled;
final sendMessageContent = mustEncrypt
? await client.encryption
.encryptGroupMessagePayload(id, content, type: type)
: content;
return await client.sendMessage(
id,
mustEncrypt ? EventTypes.Encrypted : type,
txid,
sendMessageContent,
);
}
/// Sends an event to this room with this json as a content. Returns the
/// event ID generated from the server.
Future<String> sendEvent(
Map<String, dynamic> content, {
String type,
String txid,
Event inReplyTo,
String editEventId,
}) async {
type = type ?? EventTypes.Message;
// Create new transaction id
String messageID;
if (txid == null) {
messageID = client.generateUniqueTransactionId();
} else {
messageID = txid;
}
if (inReplyTo != null) {
var replyText = '<${inReplyTo.senderId}> ' + inReplyTo.body;
replyText = replyText.split('\n').map((line) => '> $line').join('\n');
content['format'] = 'org.matrix.custom.html';
// be sure that we strip any previous reply fallbacks
final replyHtml = (inReplyTo.formattedText.isNotEmpty
? inReplyTo.formattedText
: htmlEscape.convert(inReplyTo.body).replaceAll('\n', '<br>'))
.replaceAll(
RegExp(r'<mx-reply>.*<\/mx-reply>',
caseSensitive: false, multiLine: false, dotAll: true),
'');
final repliedHtml = content.tryGet<String>('formatted_body') ??
htmlEscape
.convert(content.tryGet<String>('body') ?? '')
.replaceAll('\n', '<br>');
content['formatted_body'] =
'<mx-reply><blockquote><a href="https://matrix.to/#/${inReplyTo.room.id}/${inReplyTo.eventId}">In reply to</a> <a href="https://matrix.to/#/${inReplyTo.senderId}">${inReplyTo.senderId}</a><br>$replyHtml</blockquote></mx-reply>$repliedHtml';
// We escape all @room-mentions here to prevent accidental room pings when an admin
// replies to a message containing that!
content['body'] =
'${replyText.replaceAll('@room', '@\u200broom')}\n\n${content.tryGet<String>('body') ?? ''}';
content['m.relates_to'] = {
'm.in_reply_to': {
'event_id': inReplyTo.eventId,
},
};
}
if (editEventId != null) {
final newContent = content.copy();
content['m.new_content'] = newContent;
content['m.relates_to'] = {
'event_id': editEventId,
'rel_type': RelationshipTypes.edit,
};
if (content['body'] is String) {
content['body'] = '* ' + content['body'];
}
if (content['formatted_body'] is String) {
content['formatted_body'] = '* ' + content['formatted_body'];
}
}
final sentDate = DateTime.now();
final syncUpdate = SyncUpdate(nextBatch: '')
..rooms = (RoomsUpdate()
..join = (<String, JoinedRoomUpdate>{}..[id] = (JoinedRoomUpdate()
..timeline = (TimelineUpdate()
..events = [
MatrixEvent(
content: content,
type: type,
eventId: messageID,
senderId: client.userID,
originServerTs: sentDate,
unsigned: {
messageSendingStatusKey: 0,
'transaction_id': messageID,
},
)
]))));
await _handleFakeSync(syncUpdate);
// Send the text and on success, store and display a *sent* event.
String res;
while (res == null) {
try {
res = await _sendContent(
type,
content,
txid: messageID,
);
} catch (e, s) {
if ((DateTime.now().millisecondsSinceEpoch -
sentDate.millisecondsSinceEpoch) <
(1000 * client.sendMessageTimeoutSeconds)) {
Logs().w('[Client] Problem while sending message because of "' +
e.toString() +
'". Try again in 1 seconds...');
await Future.delayed(Duration(seconds: 1));
} else {
Logs().w('[Client] Problem while sending message', e, s);
syncUpdate.rooms.join.values.first.timeline.events.first
.unsigned[messageSendingStatusKey] = -1;
await _handleFakeSync(syncUpdate);
return null;
}
}
}
syncUpdate.rooms.join.values.first.timeline.events.first
.unsigned[messageSendingStatusKey] = 1;
syncUpdate.rooms.join.values.first.timeline.events.first.eventId = res;
await _handleFakeSync(syncUpdate);
return res;
}
/// Call the Matrix API to join this room if the user is not already a member.
/// If this room is intended to be a direct chat, the direct chat flag will
/// automatically be set.
Future<void> join({bool leaveIfNotFound = true}) async {
try {
await client.joinRoomById(id);
final invitation = getState(EventTypes.RoomMember, client.userID);
if (invitation != null &&
invitation.content['is_direct'] is bool &&
invitation.content['is_direct']) {
await addToDirectChat(invitation.sender.id);
}
} on MatrixException catch (exception) {
if (leaveIfNotFound &&
[MatrixError.M_NOT_FOUND, MatrixError.M_UNKNOWN]
.contains(exception.error)) {
await leave();
}
rethrow;
}
return;
}
/// Call the Matrix API to leave this room. If this room is set as a direct
/// chat, this will be removed too.
Future<void> leave() async {
if (directChatMatrixID != '') await removeFromDirectChat();
try {
await client.leaveRoom(id);
} on MatrixException catch (exception) {
if ([MatrixError.M_NOT_FOUND, MatrixError.M_UNKNOWN]
.contains(exception.error)) {
await _handleFakeSync(
SyncUpdate(nextBatch: '')
..rooms = (RoomsUpdate()
..leave = {
'$id': (LeftRoomUpdate()),
}),
);
}
rethrow;
}
return;
}
/// Call the Matrix API to forget this room if you already left it.
Future<void> forget() async {
await client.database?.forgetRoom(client.id, id);
await client.forgetRoom(id);
return;
}
/// Call the Matrix API to kick a user from this room.
Future<void> kick(String userID) => client.kick(id, userID);
/// Call the Matrix API to ban a user from this room.
Future<void> ban(String userID) => client.ban(id, userID);
/// Call the Matrix API to unban a banned user from this room.
Future<void> unban(String userID) => client.unban(id, userID);
/// Set the power level of the user with the [userID] to the value [power].
/// Returns the event ID of the new state event. If there is no known
/// power level event, there might something broken and this returns null.
Future<String> setPower(String userID, int power) async {
if (getState(EventTypes.RoomPowerLevels) == null) return null;
final powerMap = <String, dynamic>{}
..addAll(getState(EventTypes.RoomPowerLevels).content);
if (powerMap['users'] == null) powerMap['users'] = {};
powerMap['users'][userID] = power;
return await client.setRoomStateWithKey(
id,
EventTypes.RoomPowerLevels,
'',
powerMap,
);
}
/// Call the Matrix API to invite a user to this room.
Future<void> invite(String userID) => client.inviteUser(id, userID);
/// Request more previous events from the server. [historyCount] defines how much events should
/// be received maximum. When the request is answered, [onHistoryReceived] will be triggered **before**
/// the historical events will be published in the onEvent stream.
Future<void> requestHistory(
{int historyCount = defaultHistoryCount, onHistoryReceived}) async {
final resp = await client.getRoomEvents(
id,
prev_batch,
Direction.b,
limit: historyCount,
filter: jsonEncode(StateFilter(lazyLoadMembers: true).toJson()),
);
if (onHistoryReceived != null) onHistoryReceived();
prev_batch = resp.end;
final loadFn = () async {
if (!((resp.chunk?.isNotEmpty ?? false) && resp.end != null)) return;
await client.handleSync(
SyncUpdate(nextBatch: '')
..rooms = (RoomsUpdate()
..join = ({}..[id] = (JoinedRoomUpdate()
..state = resp.state
..timeline = (TimelineUpdate()
..limited = false
..events = resp.chunk
..prevBatch = resp.end)))),
sortAtTheEnd: true);
};
if (client.database != null) {
await client.database.transaction(() async {
await client.database.setRoomPrevBatch(resp.end, client.id, id);
await loadFn();
await updateSortOrder();
});
} else {
await loadFn();
}
}
/// Sets this room as a direct chat for this user if not already.
Future<void> addToDirectChat(String userID) async {
final directChats = client.directChats;
if (directChats[userID] is List) {
if (!directChats[userID].contains(id)) {
directChats[userID].add(id);
} else {
return;
} // Is already in direct chats
} else {
directChats[userID] = [id];
}
await client.setAccountData(
client.userID,
'm.direct',
directChats,
);
return;
}
/// Removes this room from all direct chat tags.
Future<void> removeFromDirectChat() async {
final directChats = client.directChats;
if (directChats[directChatMatrixID] is List &&
directChats[directChatMatrixID].contains(id)) {
directChats[directChatMatrixID].remove(id);
} else {
return;
} // Nothing to do here
await client.setAccountDataPerRoom(
client.userID,
id,
'm.direct',
directChats,
);
return;
}
/// Sets the position of the read marker for a given room, and optionally the
/// read receipt's location.
Future<void> setReadMarker(String eventId, {String mRead}) async {
if (mRead != null) {
notificationCount = 0;
await client.database?.resetNotificationCount(client.id, id);
}
await client.setReadMarker(
id,
eventId,
mRead: mRead,
);
return;
}
/// This API updates the marker for the given receipt type to the event ID
/// specified.
Future<void> postReceipt(String eventId) async {
notificationCount = 0;
await client.database?.resetNotificationCount(client.id, id);
await client.postReceipt(
id,
ReceiptType.mRead,
eventId,
{},
);
return;
}
/// Sends *m.fully_read* and *m.read* for the given event ID.
@Deprecated('Use sendReadMarker instead')
Future<void> sendReadReceipt(String eventID) async {
notificationCount = 0;
await client.database?.resetNotificationCount(client.id, id);
await client.setReadMarker(
id,
eventID,
mRead: eventID,
);
return;
}
/// Creates a timeline from the store. Returns a [Timeline] object.
Future<Timeline> getTimeline(
{void Function() onUpdate, void Function(int insertID) onInsert}) async {
await postLoad();
var events;
if (client.database != null) {
events = await client.database.getEventList(client.id, this);
} else {
events = <Event>[];
}
// Try again to decrypt encrypted events and update the database.
if (encrypted && client.database != null && client.encryptionEnabled) {
await client.database.transaction(() async {
for (var i = 0; i < events.length; i++) {
if (events[i].type == EventTypes.Encrypted &&
events[i].content['can_request_session'] == true) {
events[i] = await client.encryption
.decryptRoomEvent(id, events[i], store: true);
}
}
});
}
final timeline = Timeline(
room: this,
events: events,
onUpdate: onUpdate,
onInsert: onInsert,
);
if (client.database == null) {
prev_batch = '';
await requestHistory(historyCount: 10);
}
return timeline;
}
/// Returns all participants for this room. With lazy loading this
/// list may not be complete. User [requestParticipants] in this
/// case.
List<User> getParticipants() {
final userList = <User>[];
if (states[EventTypes.RoomMember] is Map<String, dynamic>) {
for (final entry in states[EventTypes.RoomMember].entries) {
final state = entry.value;
if (state.type == EventTypes.RoomMember) userList.add(state.asUser);
}
}
return userList;
}
bool _requestedParticipants = false;
/// Request the full list of participants from the server. The local list
/// from the store is not complete if the client uses lazy loading.
Future<List<User>> requestParticipants() async {
if (!participantListComplete && partial && client.database != null) {
// we aren't fully loaded, maybe the users are in the database
final users = await client.database.getUsers(client.id, this);
for (final user in users) {
setState(user);
}
}
if (_requestedParticipants || participantListComplete) {
return getParticipants();
}
final matrixEvents = await client.getMembersByRoom(id);
final users =
matrixEvents.map((e) => Event.fromMatrixEvent(e, this).asUser).toList();
for (final user in users) {
setState(user); // at *least* cache this in-memory
}
_requestedParticipants = true;
users.removeWhere(
(u) => [Membership.leave, Membership.ban].contains(u.membership));
return users;
}
/// Checks if the local participant list of joined and invited users is complete.
bool get participantListComplete {
final knownParticipants = getParticipants();
knownParticipants.removeWhere(
(u) => ![Membership.join, Membership.invite].contains(u.membership));
return knownParticipants.length ==
(summary.mJoinedMemberCount ?? 0) + (summary.mInvitedMemberCount ?? 0);
}
/// Returns the [User] object for the given [mxID] or requests it from
/// the homeserver and waits for a response.
@Deprecated('Use [requestUser] instead')
Future<User> getUserByMXID(String mxID) async {
if (getState(EventTypes.RoomMember, mxID) != null) {
return getState(EventTypes.RoomMember, mxID).asUser;
}
return requestUser(mxID);
}
/// Returns the [User] object for the given [mxID] or requests it from
/// the homeserver and returns a default [User] object while waiting.
User getUserByMXIDSync(String mxID) {
if (getState(EventTypes.RoomMember, mxID) != null) {
return getState(EventTypes.RoomMember, mxID).asUser;
} else {
requestUser(mxID, ignoreErrors: true);
return User(mxID, room: this);
}
}
final Set<String> _requestingMatrixIds = {};
/// Requests a missing [User] for this room. Important for clients using
/// lazy loading. If the user can't be found this method tries to fetch
/// the displayname and avatar from the profile if [requestProfile] is true.
Future<User> requestUser(
String mxID, {
bool ignoreErrors = false,
bool requestProfile = true,
}) async {
// TODO: Why is this bug happening at all?
if (mxID == null) {
// Show a warning but first generate a stacktrace.
try {
throw Exception();
} catch (e, s) {
Logs().w('requestUser has been called with a null mxID', e, s);
}
return null;
}
if (getState(EventTypes.RoomMember, mxID) != null) {
return getState(EventTypes.RoomMember, mxID).asUser;
}
if (client.database != null) {
// it may be in the database
final user = await client.database.getUser(client.id, mxID, this);
if (user != null) {
setState(user);
onUpdate.add(id);
return user;
}
}
if (!_requestingMatrixIds.add(mxID)) return null;
Map<String, dynamic> resp;
try {
Logs().v(
'Request missing user $mxID in room $displayname from the server...');
resp = await client.requestStateContent(
id,
EventTypes.RoomMember,
mxID,
);
} catch (e, s) {
if (!ignoreErrors) {
_requestingMatrixIds.remove(mxID);
rethrow;
} else {
Logs().w('Unable to request the user $mxID from the server', e, s);
}
}
if (resp == null && requestProfile) {
try {
final profile = await client.getUserProfile(mxID);
resp = {
'displayname': profile.displayname,
'avatar_url': profile.avatarUrl.toString(),
};
} catch (e, s) {
_requestingMatrixIds.remove(mxID);
if (!ignoreErrors) {
rethrow;
} else {
Logs().w('Unable to request the profile $mxID from the server', e, s);
}
}
}
if (resp == null) {
return null;
}
final user = User(mxID,
displayName: resp['displayname'],
avatarUrl: resp['avatar_url'],
room: this);
setState(user);
await client.database?.transaction(() async {
final content = <String, dynamic>{
'sender': mxID,
'type': EventTypes.RoomMember,
'content': resp,
'state_key': mxID,
};
await client.database.storeEventUpdate(
client.id,
EventUpdate(
content: content,
roomID: id,
type: EventUpdateType.state,
sortOrder: 0.0),
);
});
onUpdate.add(id);
_requestingMatrixIds.remove(mxID);
return user;
}
/// Searches for the event on the server. Returns null if not found.
Future<Event> getEventById(String eventID) async {
try {
final matrixEvent = await client.getOneRoomEvent(id, eventID);
final event = Event.fromMatrixEvent(matrixEvent, this);
if (event.type == EventTypes.Encrypted && client.encryptionEnabled) {
// attempt decryption
return await client.encryption
.decryptRoomEvent(id, event, store: false);
}
return event;
} on MatrixException catch (err) {
if (err.errcode == 'M_NOT_FOUND') {
return null;
}
rethrow;
}
}
/// Returns the power level of the given user ID.
int getPowerLevelByUserId(String userId) {
var powerLevel = 0;
final powerLevelState = getState(EventTypes.RoomPowerLevels);
if (powerLevelState == null) return powerLevel;
if (powerLevelState.content['users_default'] is int) {
powerLevel = powerLevelState.content['users_default'];
}
if (powerLevelState.content
.tryGet<Map<String, dynamic>>('users')
?.tryGet<int>(userId) !=
null) {
powerLevel = powerLevelState.content['users'][userId];
}
return powerLevel;
}
/// Returns the user's own power level.
int get ownPowerLevel => getPowerLevelByUserId(client.userID);
/// Returns the power levels from all users for this room or null if not given.
Map<String, int> get powerLevels {
final powerLevelState = getState(EventTypes.RoomPowerLevels);
if (powerLevelState.content['users'] is Map<String, int>) {
return powerLevelState.content['users'];
}
return null;
}
/// Uploads a new user avatar for this room. Returns the event ID of the new
/// m.room.avatar event.
Future<String> setAvatar(MatrixFile file) async {
final uploadResp =
await client.uploadContent(file.bytes, filename: file.name);
return await client.setRoomStateWithKey(
id,
EventTypes.RoomAvatar,
'',
{'url': uploadResp.toString()},
);
}
bool _hasPermissionFor(String action) {
if (getState(EventTypes.RoomPowerLevels) == null ||
getState(EventTypes.RoomPowerLevels).content[action] == null) {
return true;
}
return ownPowerLevel >=
getState(EventTypes.RoomPowerLevels).content[action];
}
/// The level required to ban a user.
bool get canBan => _hasPermissionFor('ban');
/// The default level required to send message events. Can be overridden by the events key.
bool get canSendDefaultMessages => _hasPermissionFor('events_default');
/// The level required to invite a user.
bool get canInvite => _hasPermissionFor('invite');
/// The level required to kick a user.
bool get canKick => _hasPermissionFor('kick');
/// The level required to redact an event.
bool get canRedact => _hasPermissionFor('redact');
/// The default level required to send state events. Can be overridden by the events key.
bool get canSendDefaultStates => _hasPermissionFor('state_default');
bool get canChangePowerLevel => canSendEvent(EventTypes.RoomPowerLevels);
bool canSendEvent(String eventType) {
if (getState(EventTypes.RoomPowerLevels) == null) return true;
if (getState(EventTypes.RoomPowerLevels).content['events'] == null ||
getState(EventTypes.RoomPowerLevels).content['events'][eventType] ==
null) {
return eventType == EventTypes.Message
? canSendDefaultMessages
: canSendDefaultStates;
}
return ownPowerLevel >=
getState(EventTypes.RoomPowerLevels).content['events'][eventType];
}
/// Returns the [PushRuleState] for this room, based on the m.push_rules stored in
/// the account_data.
PushRuleState get pushRuleState {
if (!client.accountData.containsKey('m.push_rules') ||
!(client.accountData['m.push_rules'].content['global'] is Map)) {
return PushRuleState.notify;
}
final Map<String, dynamic> globalPushRules =
client.accountData['m.push_rules'].content['global'];
if (globalPushRules == null) return PushRuleState.notify;
if (globalPushRules['override'] is List) {
for (final pushRule in globalPushRules['override']) {
if (pushRule['rule_id'] == id) {
if (pushRule['actions'].indexOf('dont_notify') != -1) {
return PushRuleState.dontNotify;
}
break;
}
}
}
if (globalPushRules['room'] is List) {
for (final pushRule in globalPushRules['room']) {
if (pushRule['rule_id'] == id) {
if (pushRule['actions'].indexOf('dont_notify') != -1) {
return PushRuleState.mentionsOnly;
}
break;
}
}
}
return PushRuleState.notify;
}
/// Sends a request to the homeserver to set the [PushRuleState] for this room.
/// Returns ErrorResponse if something goes wrong.
Future<void> setPushRuleState(PushRuleState newState) async {
if (newState == pushRuleState) return null;
dynamic resp;
switch (newState) {
// All push notifications should be sent to the user
case PushRuleState.notify:
if (pushRuleState == PushRuleState.dontNotify) {
await client.deletePushRule('global', PushRuleKind.override, id);
} else if (pushRuleState == PushRuleState.mentionsOnly) {
await client.deletePushRule('global', PushRuleKind.room, id);
}
break;
// Only when someone mentions the user, a push notification should be sent
case PushRuleState.mentionsOnly:
if (pushRuleState == PushRuleState.dontNotify) {
await client.deletePushRule('global', PushRuleKind.override, id);
await client.setPushRule(
'global',
PushRuleKind.room,
id,
[PushRuleAction.dontNotify],
);
} else if (pushRuleState == PushRuleState.notify) {
await client.setPushRule(
'global',
PushRuleKind.room,
id,
[PushRuleAction.dontNotify],
);
}
break;
// No push notification should be ever sent for this room.
case PushRuleState.dontNotify:
if (pushRuleState == PushRuleState.mentionsOnly) {
await client.deletePushRule('global', PushRuleKind.room, id);
}
await client.setPushRule(
'global',
PushRuleKind.override,
id,
[PushRuleAction.dontNotify],
conditions: [
PushCondition(kind: 'event_match', key: 'room_id', pattern: id)
],
);
}
return resp;
}
/// Redacts this event. Throws `ErrorResponse` on error.
Future<String> redactEvent(String eventId,
{String reason, String txid}) async {
// Create new transaction id
String messageID;
final now = DateTime.now().millisecondsSinceEpoch;
if (txid == null) {
messageID = 'msg$now';
} else {
messageID = txid;
}
final data = <String, dynamic>{};
if (reason != null) data['reason'] = reason;
return await client.redactEvent(
id,
eventId,
messageID,
reason: reason,
);
}
/// This tells the server that the user is typing for the next N milliseconds
/// where N is the value specified in the timeout key. Alternatively, if typing is false,
/// it tells the server that the user has stopped typing.
Future<void> setTyping(bool isTyping, {int timeout}) =>
client.setTyping(client.userID, id, isTyping, timeout: timeout);
@Deprecated('Use sendTypingNotification instead')
Future<void> sendTypingInfo(bool isTyping, {int timeout}) =>
setTyping(isTyping, timeout: timeout);
/// This is sent by the caller when they wish to establish a call.
/// [callId] is a unique identifier for the call.
/// [version] is the version of the VoIP specification this message adheres to. This specification is version 0.
/// [lifetime] is the time in milliseconds that the invite is valid for. Once the invite age exceeds this value,
/// clients should discard it. They should also no longer show the call as awaiting an answer in the UI.
/// [type] The type of session description. Must be 'offer'.
/// [sdp] The SDP text of the session description.
Future<String> inviteToCall(String callId, int lifetime, String sdp,
{String type = 'offer', int version = 0, String txid}) async {
txid ??= 'txid${DateTime.now().millisecondsSinceEpoch}';
final content = {
'call_id': callId,
'lifetime': lifetime,
'offer': {'sdp': sdp, 'type': type},
'version': version,
};
return await _sendContent(
EventTypes.CallInvite,
content,
txid: txid,
);
}
/// This is sent by callers after sending an invite and by the callee after answering.
/// Its purpose is to give the other party additional ICE candidates to try using to communicate.
///
/// [callId] The ID of the call this event relates to.
///
/// [version] The version of the VoIP specification this messages adheres to. This specification is version 0.
///
/// [candidates] Array of objects describing the candidates. Example:
///
/// ```
/// [
/// {
/// "candidate": "candidate:863018703 1 udp 2122260223 10.9.64.156 43670 typ host generation 0",
/// "sdpMLineIndex": 0,
/// "sdpMid": "audio"
/// }
/// ],
/// ```
Future<String> sendCallCandidates(
String callId,
List<Map<String, dynamic>> candidates, {
int version = 0,
String txid,
}) async {
txid ??= 'txid${DateTime.now().millisecondsSinceEpoch}';
final content = {
'call_id': callId,
'candidates': candidates,
'version': version,
};
return await _sendContent(
EventTypes.CallCandidates,
content,
txid: txid,
);
}
/// This event is sent by the callee when they wish to answer the call.
/// [callId] is a unique identifier for the call.
/// [version] is the version of the VoIP specification this message adheres to. This specification is version 0.
/// [type] The type of session description. Must be 'answer'.
/// [sdp] The SDP text of the session description.
Future<String> answerCall(String callId, String sdp,
{String type = 'answer', int version = 0, String txid}) async {
txid ??= 'txid${DateTime.now().millisecondsSinceEpoch}';
final content = {
'call_id': callId,
'answer': {'sdp': sdp, 'type': type},
'version': version,
};
return await _sendContent(
EventTypes.CallAnswer,
content,
txid: txid,
);
}
/// This event is sent by the callee when they wish to answer the call.
/// [callId] The ID of the call this event relates to.
/// [version] is the version of the VoIP specification this message adheres to. This specification is version 0.
Future<String> hangupCall(String callId,
{int version = 0, String txid}) async {
txid ??= 'txid${DateTime.now().millisecondsSinceEpoch}';
final content = {
'call_id': callId,
'version': version,
};
return await _sendContent(
EventTypes.CallHangup,
content,
txid: txid,
);
}
/// A room may be public meaning anyone can join the room without any prior action. Alternatively,
/// it can be invite meaning that a user who wishes to join the room must first receive an invite
/// to the room from someone already inside of the room. Currently, knock and private are reserved
/// keywords which are not implemented.
JoinRules get joinRules => getState(EventTypes.RoomJoinRules) != null
? JoinRules.values.firstWhere(
(r) =>
r.toString().replaceAll('JoinRules.', '') ==
getState(EventTypes.RoomJoinRules).content['join_rule'],
orElse: () => null)
: null;
/// Changes the join rules. You should check first if the user is able to change it.
Future<void> setJoinRules(JoinRules joinRules) async {
await client.setRoomStateWithKey(
id,
EventTypes.RoomJoinRules,
'',
{
'join_rule': joinRules.toString().replaceAll('JoinRules.', ''),
},
);
return;
}
/// Whether the user has the permission to change the join rules.
bool get canChangeJoinRules => canSendEvent(EventTypes.RoomJoinRules);
/// This event controls whether guest users are allowed to join rooms. If this event
/// is absent, servers should act as if it is present and has the guest_access value "forbidden".
GuestAccess get guestAccess => getState(EventTypes.GuestAccess) != null
? _guestAccessMap.map((k, v) => MapEntry(v, k))[
getState(EventTypes.GuestAccess).content['guest_access']]
: GuestAccess.forbidden;
/// Changes the guest access. You should check first if the user is able to change it.
Future<void> setGuestAccess(GuestAccess guestAccess) async {
await client.setRoomStateWithKey(
id,
EventTypes.GuestAccess,
'',
{
'guest_access': _guestAccessMap[guestAccess],
},
);
return;
}
/// Whether the user has the permission to change the guest access.
bool get canChangeGuestAccess => canSendEvent(EventTypes.GuestAccess);
/// This event controls whether a user can see the events that happened in a room from before they joined.
HistoryVisibility get historyVisibility =>
getState(EventTypes.HistoryVisibility) != null
? _historyVisibilityMap.map((k, v) => MapEntry(v, k))[
getState(EventTypes.HistoryVisibility)
.content['history_visibility']]
: null;
/// Changes the history visibility. You should check first if the user is able to change it.
Future<void> setHistoryVisibility(HistoryVisibility historyVisibility) async {
await client.setRoomStateWithKey(
id,
EventTypes.HistoryVisibility,
'',
{
'history_visibility': _historyVisibilityMap[historyVisibility],
},
);
return;
}
/// Whether the user has the permission to change the history visibility.
bool get canChangeHistoryVisibility =>
canSendEvent(EventTypes.HistoryVisibility);
/// Returns the encryption algorithm. Currently only `m.megolm.v1.aes-sha2` is supported.
/// Returns null if there is no encryption algorithm.
String get encryptionAlgorithm =>
getState(EventTypes.Encryption)?.parsedRoomEncryptionContent?.algorithm;
/// Checks if this room is encrypted.
bool get encrypted => encryptionAlgorithm != null;
Future<void> enableEncryption({int algorithmIndex = 0}) async {
if (encrypted) throw ('Encryption is already enabled!');
final algorithm = Client.supportedGroupEncryptionAlgorithms[algorithmIndex];
await client.setRoomStateWithKey(
id,
EventTypes.Encryption,
'',
{
'algorithm': algorithm,
},
);
return;
}
/// Returns all known device keys for all participants in this room.
Future<List<DeviceKeys>> getUserDeviceKeys() async {
final deviceKeys = <DeviceKeys>[];
final users = await requestParticipants();
for (final user in users) {
if ([Membership.invite, Membership.join].contains(user.membership) &&
client.userDeviceKeys.containsKey(user.id)) {
for (final deviceKeyEntry
in client.userDeviceKeys[user.id].deviceKeys.values) {
deviceKeys.add(deviceKeyEntry);
}
}
}
return deviceKeys;
}
Future<void> requestSessionKey(String sessionId, String senderKey) async {
if (!client.encryptionEnabled) {
return;
}
await client.encryption.keyManager.request(this, sessionId, senderKey);
}
Future<void> _handleFakeSync(SyncUpdate syncUpdate,
{bool sortAtTheEnd = false}) async {
if (client.database != null) {
await client.database.transaction(() async {
await client.handleSync(syncUpdate, sortAtTheEnd: sortAtTheEnd);
});
} else {
await client.handleSync(syncUpdate, sortAtTheEnd: sortAtTheEnd);
}
}
/// Whether this is an extinct room which has been archived in favor of a new
/// room which replaces this. Use `getLegacyRoomInformations()` to get more
/// informations about it if this is true.
bool get isExtinct => getState(EventTypes.RoomTombstone) != null;
/// Returns informations about how this room is
TombstoneContent get extinctInformations => isExtinct
? getState(EventTypes.RoomTombstone).parsedTombstoneContent
: null;
/// Checks if the `m.room.create` state has a `type` key with the value
/// `m.space`.
bool get isSpace =>
getState(EventTypes.RoomCreate)?.content?.tryGet<String>('type') ==
RoomCreationTypes.mSpace; // TODO: Magic string!
/// The parents of this room. Currently this SDK doesn't yet set the canonical
/// flag and is not checking if this room is in fact a child of this space.
/// You should therefore not rely on this and always check the children of
/// the space.
List<SpaceParent> get spaceParents =>
states[EventTypes.spaceParent]
?.values
?.map((state) => SpaceParent.fromState(state))
?.where((child) => child.via?.isNotEmpty ?? false)
?.toList() ??
[];
/// List all children of this space. Children without a `via` domain will be
/// ignored.
/// Children are sorted by the `order` while those without this field will be
/// sorted at the end of the list.
List<SpaceChild> get spaceChildren => !isSpace
? throw Exception('Room is not a space!')
: (states[EventTypes.spaceChild]
?.values
?.map((state) => SpaceChild.fromState(state))
?.where((child) => child.via?.isNotEmpty ?? false)
?.toList() ??
[])
..sort((a, b) => a.order.isEmpty || b.order.isEmpty
? b.order.compareTo(a.order)
: a.order.compareTo(b.order));
/// Adds or edits a child of this space.
Future<void> setSpaceChild(
String roomId, {
List<String> via,
String order,
bool suggested,
}) async {
if (!isSpace) throw Exception('Room is not a space!');
via ??= [roomId.domain];
await client.setRoomStateWithKey(id, EventTypes.spaceChild, roomId, {
'via': via,
if (order != null) 'order': order,
if (suggested != null) 'suggested': suggested,
});
await client.setRoomStateWithKey(roomId, EventTypes.spaceParent, id, {
'via': via,
});
return;
}
/// Remove a child from this space by setting the `via` to an empty list.
Future<void> removeSpaceChild(String roomId) => !isSpace
? throw Exception('Room is not a space!')
: setSpaceChild(roomId, via: const []);
@override
bool operator ==(dynamic other) => (other is Room && other.id == id);
}