feat: content protection aka noforwards

closes MTQ-84

packages/client/src/client.ts

@@ -75,6 +75,7 @@ import { setChatPhoto } from './methods/chats/set-chat-photo'
 import { setChatTitle } from './methods/chats/set-chat-title'
 import { setChatUsername } from './methods/chats/set-chat-username'
 import { setSlowMode } from './methods/chats/set-slow-mode'
+import { toggleContentProtection } from './methods/chats/toggle-content-protection'
 import { toggleFragmentUsername } from './methods/chats/toggle-fragment-username'
 import { toggleJoinRequests } from './methods/chats/toggle-join-requests'
 import { toggleJoinToSend } from './methods/chats/toggle-join-to-send'
@@ -1528,6 +1529,13 @@ export interface TelegramClient extends BaseTelegramClient {
      *   Valid values are: `0 (off), 10, 30, 60 (1m), 300 (5m), 900 (15m) or 3600 (1h)`
      */
     setSlowMode(chatId: InputPeerLike, seconds?: number): Promise<void>
+    /**
+     * Set whether a chat has content protection (i.e. forwarding messages is disabled)
+     *
+     * @param chatId  Chat ID or username
+     * @param enabled  (default: `false`) Whether content protection should be enabled
+     */
+    toggleContentProtection(chatId: InputPeerLike, enabled?: boolean): Promise<void>
     /**
      * Toggle a collectible (Fragment) username
      *
@@ -4442,6 +4450,7 @@ export class TelegramClient extends BaseTelegramClient {
     setChatTitle = setChatTitle
     setChatUsername = setChatUsername
     setSlowMode = setSlowMode
+    toggleContentProtection = toggleContentProtection
     toggleFragmentUsername = toggleFragmentUsername
     toggleJoinRequests = toggleJoinRequests
     toggleJoinToSend = toggleJoinToSend

packages/client/src/methods/chats/toggle-content-protection.ts

@@ -0,0 +1,22 @@
+import { TelegramClient } from '../../client'
+import { InputPeerLike } from '../../types'
+
+/**
+ * Set whether a chat has content protection (i.e. forwarding messages is disabled)
+ *
+ * @param chatId  Chat ID or username
+ * @param enabled  Whether content protection should be enabled
+ * @internal
+ */
+export async function toggleContentProtection(
+    this: TelegramClient,
+    chatId: InputPeerLike,
+    enabled = false,
+): Promise<void> {
+    const res = await this.call({
+        _: 'messages.toggleNoForwards',
+        peer: await this.resolvePeer(chatId),
+        enabled,
+    })
+    this._handleUpdate(res)
+}

packages/client/src/types/messages/message.ts

@@ -146,6 +146,11 @@ export class Message {
         return this.raw._ === 'messageService'
     }
 
+    /** Whether this message has content protection (i.e. disabled forwards) */
+    get isContentProtected(): boolean {
+        return this.raw._ === 'message' && this.raw.noforwards!
+    }
+
     /**
      * Multiple media messages with the same grouped ID
      * indicate an album or media group

packages/client/src/types/peers/chat-event/actions.ts

@@ -10,12 +10,12 @@ import { ChatMember } from '../chat-member'
 import { ChatPermissions } from '../chat-permissions'
 import { User } from '../user'
 
-/** A user has joined the group (in the case of big groups, info of the user that has joined isn't shown) */
+/** A user has joined the channel (in the case of big groups, info of the user that has joined isn't shown) */
 export interface ChatActionUserJoined {
     type: 'user_joined'
 }
 
-/** A user has joined the group using an invite link */
+/** A user has joined the channel using an invite link */
 export interface ChatActionUserJoinedInvite {
     type: 'user_joined_invite'
 
@@ -23,7 +23,7 @@ export interface ChatActionUserJoinedInvite {
     link: ChatInviteLink
 }
 
-/** A user has joined the group using an invite link and was approved by an admin */
+/** A user has joined the channel using an invite link and was approved by an admin */
 export interface ChatActionUserJoinedApproved {
     type: 'user_joined_approved'
 
@@ -34,12 +34,12 @@ export interface ChatActionUserJoinedApproved {
     approvedBy: User
 }
 
-/** A user has left the group (in the case of big groups, info of the user that has joined isn't shown) */
+/** A user has left the channel (in the case of big groups, info of the user that has joined isn't shown) */
 export interface ChatActionUserLeft {
     type: 'user_left'
 }
 
-/** A user was invited to the group */
+/** A user was invited to the channel */
 export interface ChatActionUserInvited {
     type: 'user_invited'
 
@@ -47,7 +47,7 @@ export interface ChatActionUserInvited {
     member: ChatMember
 }
 
-/** Group title has been changed */
+/** Channel title has been changed */
 export interface ChatActionTitleChanged {
     type: 'title_changed'
 
@@ -58,7 +58,7 @@ export interface ChatActionTitleChanged {
     new: string
 }
 
-/** Group description has been changed */
+/** Channel description has been changed */
 export interface ChatActionDescriptionChanged {
     type: 'description_changed'
 
@@ -69,7 +69,7 @@ export interface ChatActionDescriptionChanged {
     new: string
 }
 
-/** Group username has been changed */
+/** Channel username has been changed */
 export interface ChatActionUsernameChanged {
     type: 'username_changed'
 
@@ -80,7 +80,18 @@ export interface ChatActionUsernameChanged {
     new: string
 }
 
-/** Group photo has been changed */
+/** Channel username list has been changed */
+export interface ChatActionUsernamesChanged {
+    type: 'usernames_changed'
+
+    /** Old username */
+    old: string[]
+
+    /** New username */
+    new: string[]
+}
+
+/** Channel photo has been changed */
 export interface ChatActionPhotoChanged {
     type: 'photo_changed'
 
@@ -298,6 +309,14 @@ export interface ChatActionTtlChanged {
     new: number
 }
 
+/** Content protection has been toggled */
+export interface ChatActionNoForwardsToggled {
+    type: 'no_forwards_toggled'
+
+    /** New status */
+    enabled: boolean
+}
+
 /** Forum has been toggled */
 export interface ChatActionForumToggled {
     type: 'forum_toggled'
@@ -341,6 +360,7 @@ export type ChatAction =
     | ChatActionTitleChanged
     | ChatActionDescriptionChanged
     | ChatActionUsernameChanged
+    | ChatActionUsernamesChanged
     | ChatActionPhotoChanged
     | ChatActionInvitesToggled
     | ChatActionSignaturesToggled
@@ -365,6 +385,7 @@ export type ChatAction =
     | ChatActionInviteLinkRevoked
     | ChatActionUserJoinedApproved
     | ChatActionTtlChanged
+    | ChatActionNoForwardsToggled
     | ChatActionForumToggled
     | ChatActionTopicCreated
     | ChatActionTopicEdited
@@ -377,10 +398,6 @@ export function _actionFromTl(
     client: TelegramClient,
     peers: PeersIndex,
 ): ChatAction {
-    // todo - MTQ-84
-    // channelAdminLogEventActionToggleNoForwards#cb2ac766 new_value:Bool = ChannelAdminLogEventAction;
-    // todo - MTQ-57
-    // channelAdminLogEventActionChangeUsernames#f04fb3a9 prev_value:Vector<string> new_value:Vector<string>
     // todo - MTQ-72
     // channelAdminLogEventActionSendMessage#278f2868 message:Message = ChannelAdminLogEventAction;
     // channelAdminLogEventActionChangeAvailableReactions#be4e0ef8 prev_value:ChatReactions new_value:ChatReactions
@@ -407,6 +424,12 @@ export function _actionFromTl(
                 old: e.prevValue,
                 new: e.newValue,
             }
+        case 'channelAdminLogEventActionChangeUsernames':
+            return {
+                type: 'usernames_changed',
+                old: e.prevValue,
+                new: e.newValue,
+            }
         case 'channelAdminLogEventActionChangePhoto':
             return {
                 type: 'photo_changed',
@@ -585,6 +608,11 @@ export function _actionFromTl(
                 type: 'topic_deleted',
                 topic: new ForumTopic(client, e.topic, peers),
             }
+        case 'channelAdminLogEventActionToggleNoForwards':
+            return {
+                type: 'no_forwards_toggled',
+                enabled: e.newValue,
+            }
         // case 'channelAdminLogEventActionPinTopic'
         // ^ looks like it is not used, and pinned topics are not at all presented in the event log
         default:

packages/client/src/types/peers/chat-event/filters.ts

@@ -48,6 +48,7 @@ export function normalizeChatEventFilters(input: InputChatEventFilters): ChatEve
                 case 'location_changed':
                 case 'photo_changed':
                 case 'username_changed':
+                case 'usernames_changed':
                 case 'stickerset_changed':
                 case 'slow_mode_changed':
                 case 'ttl_changed':
@@ -58,6 +59,7 @@ export function normalizeChatEventFilters(input: InputChatEventFilters): ChatEve
                 case 'signatures_toggled':
                 case 'def_perms_changed':
                 case 'forum_toggled':
+                case 'no_forwards_toggled':
                     serverFilter.settings = true
                     break
                 case 'msg_pinned':

packages/client/src/types/peers/chat.ts

@@ -212,6 +212,11 @@ export class Chat {
         return this.peer._ === 'channel' && this.peer.joinToSend!
     }
 
+    /** Whether this group has content protection (i.e. disabled forwards) */
+    get hasContentProtection(): boolean {
+        return (this.peer._ === 'channel' || this.peer._ === 'chat') && this.peer.noforwards!
+    }
+
     /**
      * Title, for supergroups, channels and groups
      */