fix: allow msmsg decryption and emit view-once unavailable fanout

Two issues found during view-once testing on linked devices:

1. msmsg block removal:
   The "temporary fix" that discarded all msmsg-type encrypted messages
   was also blocking legitimate view-once messages. On linked devices,
   view-once arrives as msmsg encryption type. The block was originally
   added to prevent crashes from missing messageSecret, but the existing
   try/catch in the decrypt path already handles those errors gracefully
   by marking the message as a CIPHERTEXT stub.

2. view_once_unavailable_fanout emission:
   When a linked device receives a view-once, the WA server sends only
   <unavailable type="view_once"/> (no <enc> with actual media content).
   Previously this was silently acknowledged without emitting any event,
   so consumers (zpro, astra-api, etc.) never knew a view-once arrived.
   Now it emits the message as a CIPHERTEXT stub with key.isViewOnce=true
   so consumers can display "view-once message received" in their UI.

Co-Authored-By: Renato Alcara

WAProto/WAProto.proto

@@ -1,7 +1,7 @@
 syntax = "proto3";
 package proto;
 
-/// WhatsApp Version: 2.3000.1035370989
+/// WhatsApp Version: 2.3000.1037082622
 
 message ADVDeviceIdentity {
     optional uint32 rawId = 1;
@@ -417,9 +417,16 @@ message BotCapabilityMetadata {
         JSON_PATCH_STREAMING = 58;
         AI_TAB_FORCE_CLIPPY = 59;
         UNIFIED_RESPONSE_EMBEDDED_SCREENS = 60;
+        AI_SUBSCRIPTION_ENABLED = 61;
     }
 }
 
+message BotCommandMetadata {
+    optional string commandName = 1;
+    optional string commandDescription = 2;
+    optional string commandPrompt = 3;
+}
+
 message BotDocumentMessageMetadata {
     optional DocumentPluginType pluginType = 1;
     enum DocumentPluginType {
@@ -651,6 +658,7 @@ message BotMetadata {
     optional BotRenderingConfigMetadata botRenderingConfigMetadata = 36;
     optional BotInfrastructureDiagnostics botInfrastructureDiagnostics = 37;
     optional AIMediaCollectionMetadata aiMediaCollectionMetadata = 38;
+    optional BotCommandMetadata commandMetadata = 39;
     optional bytes internalMetadata = 999;
 }
 
@@ -702,6 +710,7 @@ enum BotMetricsEntryPoint {
     WEB_NAVIGATION_BAR = 47;
     GROUP_MEMBER = 54;
     CHATLIST_SEARCH = 55;
+    NEW_CHAT_LIST = 56;
 }
 message BotMetricsMetadata {
     optional string destinationId = 1;
@@ -1466,6 +1475,10 @@ message ContextInfo {
         optional string wtwaWebsiteUrl = 26;
         optional string adPreviewUrl = 27;
         optional bool containsCtwaFlowsAutoReply = 28;
+        optional int32 agmThumbnailStrategy = 29;
+        optional int32 agmTitleStrategy = 30;
+        optional int32 agmSubtitleStrategy = 31;
+        optional int32 agmHeaderInteractionStrategy = 32;
         enum AdType {
             CTWA = 0;
             CAWC = 1;
@@ -1651,6 +1664,7 @@ message DeviceCapabilities {
         optional bool companionSupportEnabled = 2;
         optional bool campaignSyncEnabled = 3;
         optional bool insightsSyncEnabled = 4;
+        optional int32 recipientLimit = 5;
     }
     
     enum ChatLockSupportLevel {
@@ -1726,6 +1740,8 @@ message DeviceProps {
         optional uint32 initialSyncMaxMessagesPerChat = 20;
         optional bool supportManusHistory = 21;
         optional bool supportHatchHistory = 22;
+        repeated string supportedBotChannelFbids = 23;
+        optional bool supportInlineContacts = 24;
     }
     
     enum PlatformType {
@@ -1912,6 +1928,16 @@ message GroupParticipant {
     }
 }
 
+message GroupRootKeyShare {
+    repeated GroupRootKeyShareEntry keys = 1;
+}
+
+message GroupRootKeyShareEntry {
+    optional bytes groupRootKey = 1;
+    optional string keyId = 2;
+    optional int64 expiryTimestampMs = 3;
+}
+
 message HandshakeMessage {
     optional ClientHello clientHello = 2;
     optional ServerHello serverHello = 3;
@@ -1934,6 +1960,7 @@ message HandshakeMessage {
         optional bool sendServerHelloPaddedBytes = 7;
         optional bool simulateXxkemFs = 8;
         optional HandshakeMessage.HandshakePqMode pqMode = 9;
+        optional bytes extendedEphemeral = 10;
     }
     
     enum HandshakePqMode {
@@ -1953,6 +1980,7 @@ message HandshakeMessage {
         optional bytes payload = 3;
         optional bytes extendedStatic = 4;
         optional bytes paddingBytes = 5;
+        optional bytes extendedCiphertext = 6;
     }
     
 }
@@ -1976,6 +2004,8 @@ message HistorySync {
     optional bytes shareableChatIdentifierEncryptionKey = 17;
     repeated Account accounts = 18;
     optional bytes nctSalt = 19;
+    repeated InlineContact inlineContacts = 20;
+    optional bool inlineContactsProvided = 21;
     enum BotAIWaitListState {
         IN_WAITLIST = 0;
         AI_AVAILABLE = 1;
@@ -2070,6 +2100,14 @@ message InThreadSurveyMetadata {
     
 }
 
+message InlineContact {
+    optional string pnJid = 1;
+    optional string lidJid = 2;
+    optional string fullName = 3;
+    optional string firstName = 4;
+    optional string username = 5;
+}
+
 message InteractiveAnnotation {
     repeated Point polygonVertices = 1;
     optional bool shouldSkipConfirmation = 4;
@@ -2148,7 +2186,6 @@ message LimitSharing {
         CHAT_SETTING = 1;
         BIZ_SUPPORTS_FB_HOSTING = 2;
         UNKNOWN_GROUP = 3;
-        DEPRECATION = 4;
     }
 }
 
@@ -2310,6 +2347,7 @@ message Message {
     optional ConditionalRevealMessage conditionalRevealMessage = 120;
     optional PollAddOptionMessage pollAddOptionMessage = 121;
     optional EventInviteMessage eventInviteMessage = 122;
+    optional GroupRootKeyShare groupRootKeyShare = 123;
     message AlbumMessage {
         optional uint32 expectedImageCount = 2;
         optional uint32 expectedVideoCount = 3;
@@ -2501,6 +2539,7 @@ message Message {
             UNKNOWN = 0;
             CONTROL_PASSED = 1;
             CONTROL_TAKEN = 2;
+            INFO = 3;
         }
         message CloudAPIThreadControlNotificationContent {
             optional string handoffNotificationText = 1;
@@ -3282,6 +3321,7 @@ message Message {
             optional int32 onDemandMsgCount = 4;
             optional int64 oldestMsgTimestampMs = 5;
             optional string accountLid = 6;
+            optional bool supportInlineResponse = 7;
         }
         
         message PlaceholderMessageResendRequest {
@@ -3368,6 +3408,7 @@ message Message {
                 ERROR_REQUEST_ON_NON_SMB_PRIMARY = 4;
                 ERROR_HOSTED_DEVICE_NOT_CONNECTED = 5;
                 ERROR_HOSTED_DEVICE_LOGIN_TIME_NOT_SET = 6;
+                ERROR_MULTI_PROVIDER_NOT_CONFIGURED = 7;
             }
             message HistorySyncChunkRetryResponse {
                 optional Message.HistorySyncType syncType = 1;
@@ -3616,7 +3657,6 @@ message Message {
             GROUP_MEMBER_LABEL_CHANGE = 30;
             AI_MEDIA_COLLECTION_MESSAGE = 31;
             MESSAGE_UNSCHEDULE = 32;
-            BOT_UNLINK_MESSAGE = 33;
         }
     }
     
@@ -3767,6 +3807,7 @@ message Message {
         optional bool isLottie = 21;
         optional string accessibilityLabel = 22;
         optional int32 premium = 24;
+        optional string emojis = 25;
     }
     
     message StickerPackMessage {
@@ -3987,6 +4028,7 @@ message MessageContextInfo {
     optional LimitSharing limitSharingV2 = 14;
     repeated ThreadID threadId = 15;
     optional WebLinkRenderConfig weblinkRenderConfig = 16;
+    optional bytes teeBotMetadata = 17;
     enum MessageAddonExpiryType {
         STATIC = 1;
         DEPENDENT_ON_PARENT = 2;
@@ -4492,6 +4534,12 @@ message ReportingTokenInfo {
     optional bytes reportingTag = 1;
 }
 
+message ScheduledMessageMetadata {
+    optional string revealKeyId = 1;
+    optional bytes revealKey = 2;
+    optional uint64 scheduledTime = 3;
+}
+
 message SenderKeyDistributionMessage {
     optional uint32 id = 1;
     optional uint32 iteration = 2;
@@ -4892,6 +4940,7 @@ message SyncActionValue {
         repeated SyncActionValue.BroadcastListParticipant participants = 2;
         optional string listName = 3;
         repeated string labelIds = 4;
+        optional string audienceExpression = 5;
     }
     
     message CallLogAction {
@@ -5021,6 +5070,7 @@ message SyncActionValue {
             DRAFTED = 8;
             AI_HANDOFF = 9;
             CHANNELS = 10;
+            AI_RESPONDING = 11;
         }
     }
     
@@ -5236,6 +5286,8 @@ message SyncActionValue {
         optional bool isStatusNotificationEnabled = 29;
         optional int32 statusNotificationToneId = 30;
         optional bool shouldPlaySoundForCallNotification = 31;
+        optional string chatThemeId = 32;
+        optional string colorSchemeId = 33;
         enum DisplayMode {
             DISPLAY_MODE_UNKNOWN = 0;
             ALWAYS = 1;
@@ -5280,6 +5332,8 @@ message SyncActionValue {
             IS_STATUS_NOTIFICATION_ENABLED = 29;
             STATUS_NOTIFICATION_TONE_ID = 30;
             SHOULD_PLAY_SOUND_FOR_CALL_NOTIFICATION = 31;
+            CHAT_THEME_ID = 32;
+            COLOR_SCHEME_ID = 33;
         }
         enum SettingPlatform {
             PLATFORM_UNKNOWN = 0;
@@ -5303,11 +5357,21 @@ message SyncActionValue {
         repeated string userJid = 2;
         optional bool shareToFB = 3;
         optional bool shareToIG = 4;
+        repeated CustomList customLists = 5;
+        message CustomList {
+            optional string listId = 1;
+            optional string name = 2;
+            optional string emoji = 3;
+            optional bool isSelected = 4;
+            repeated string userJid = 5;
+        }
+        
         enum StatusDistributionMode {
             ALLOW_LIST = 0;
             DENY_LIST = 1;
             CONTACTS = 2;
             CLOSE_FRIENDS = 3;
+            CUSTOM_LIST = 4;
         }
     }
     
@@ -5694,6 +5758,8 @@ message WebMessageInfo {
     optional QuarantinedMessage quarantinedMessage = 77;
     optional uint32 nonJidMentions = 78;
     optional string hsmTag = 79;
+    optional uint64 ephemeralExpirationTimestamp = 80;
+    optional ScheduledMessageMetadata scheduledMessageMetadata = 81;
     enum BizPrivacyStatus {
         E2EE = 0;
         FB = 2;
@@ -5933,6 +5999,8 @@ message WebMessageInfo {
         GROUP_MEMBER_SHARE_GROUP_HISTORY_MODE = 221;
         GROUP_OPEN_BOT_ADDED = 222;
         GROUP_TEE_BOT_ADDED = 223;
+        CONTACT_INFO = 224;
+        SCHEDULED_MESSAGE_CREATED = 225;
     }
 }
 

WAProto/index.d.ts

@@ -1092,10 +1092,31 @@ export namespace proto {
             RICH_RESPONSE_UR_IMAGINE_VIDEO = 57,
             JSON_PATCH_STREAMING = 58,
             AI_TAB_FORCE_CLIPPY = 59,
-            UNIFIED_RESPONSE_EMBEDDED_SCREENS = 60
+            UNIFIED_RESPONSE_EMBEDDED_SCREENS = 60,
+            AI_SUBSCRIPTION_ENABLED = 61
         }
     }
 
+    interface IBotCommandMetadata {
+        commandName?: (string|null);
+        commandDescription?: (string|null);
+        commandPrompt?: (string|null);
+    }
+
+    class BotCommandMetadata implements IBotCommandMetadata {
+        constructor(p?: proto.IBotCommandMetadata);
+        public commandName?: (string|null);
+        public commandDescription?: (string|null);
+        public commandPrompt?: (string|null);
+        public static create(properties?: proto.IBotCommandMetadata): proto.BotCommandMetadata;
+        public static encode(m: proto.IBotCommandMetadata, w?: $protobuf.Writer): $protobuf.Writer;
+        public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.BotCommandMetadata;
+        public static fromObject(d: { [k: string]: any }): proto.BotCommandMetadata;
+        public static toObject(m: proto.BotCommandMetadata, o?: $protobuf.IConversionOptions): { [k: string]: any };
+        public toJSON(): { [k: string]: any };
+        public static getTypeUrl(typeUrlPrefix?: string): string;
+    }
+
     interface IBotDocumentMessageMetadata {
         pluginType?: (proto.BotDocumentMessageMetadata.DocumentPluginType|null);
     }
@@ -1680,6 +1701,7 @@ export namespace proto {
         botRenderingConfigMetadata?: (proto.IBotRenderingConfigMetadata|null);
         botInfrastructureDiagnostics?: (proto.IBotInfrastructureDiagnostics|null);
         aiMediaCollectionMetadata?: (proto.IAIMediaCollectionMetadata|null);
+        commandMetadata?: (proto.IBotCommandMetadata|null);
         internalMetadata?: (Uint8Array|null);
     }
 
@@ -1722,6 +1744,7 @@ export namespace proto {
         public botRenderingConfigMetadata?: (proto.IBotRenderingConfigMetadata|null);
         public botInfrastructureDiagnostics?: (proto.IBotInfrastructureDiagnostics|null);
         public aiMediaCollectionMetadata?: (proto.IAIMediaCollectionMetadata|null);
+        public commandMetadata?: (proto.IBotCommandMetadata|null);
         public internalMetadata?: (Uint8Array|null);
         public static create(properties?: proto.IBotMetadata): proto.BotMetadata;
         public static encode(m: proto.IBotMetadata, w?: $protobuf.Writer): $protobuf.Writer;
@@ -1779,7 +1802,8 @@ export namespace proto {
         WEB_INTRO_PANEL = 46,
         WEB_NAVIGATION_BAR = 47,
         GROUP_MEMBER = 54,
-        CHATLIST_SEARCH = 55
+        CHATLIST_SEARCH = 55,
+        NEW_CHAT_LIST = 56
     }
 
     interface IBotMetricsMetadata {
@@ -3591,6 +3615,10 @@ export namespace proto {
             wtwaWebsiteUrl?: (string|null);
             adPreviewUrl?: (string|null);
             containsCtwaFlowsAutoReply?: (boolean|null);
+            agmThumbnailStrategy?: (number|null);
+            agmTitleStrategy?: (number|null);
+            agmSubtitleStrategy?: (number|null);
+            agmHeaderInteractionStrategy?: (number|null);
         }
 
         class ExternalAdReplyInfo implements IExternalAdReplyInfo {
@@ -3623,6 +3651,10 @@ export namespace proto {
             public wtwaWebsiteUrl?: (string|null);
             public adPreviewUrl?: (string|null);
             public containsCtwaFlowsAutoReply?: (boolean|null);
+            public agmThumbnailStrategy?: (number|null);
+            public agmTitleStrategy?: (number|null);
+            public agmSubtitleStrategy?: (number|null);
+            public agmHeaderInteractionStrategy?: (number|null);
             public static create(properties?: proto.ContextInfo.IExternalAdReplyInfo): proto.ContextInfo.ExternalAdReplyInfo;
             public static encode(m: proto.ContextInfo.IExternalAdReplyInfo, w?: $protobuf.Writer): $protobuf.Writer;
             public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.ContextInfo.ExternalAdReplyInfo;
@@ -4027,6 +4059,7 @@ export namespace proto {
             companionSupportEnabled?: (boolean|null);
             campaignSyncEnabled?: (boolean|null);
             insightsSyncEnabled?: (boolean|null);
+            recipientLimit?: (number|null);
         }
 
         class BusinessBroadcast implements IBusinessBroadcast {
@@ -4035,6 +4068,7 @@ export namespace proto {
             public companionSupportEnabled?: (boolean|null);
             public campaignSyncEnabled?: (boolean|null);
             public insightsSyncEnabled?: (boolean|null);
+            public recipientLimit?: (number|null);
             public static create(properties?: proto.DeviceCapabilities.IBusinessBroadcast): proto.DeviceCapabilities.BusinessBroadcast;
             public static encode(m: proto.DeviceCapabilities.IBusinessBroadcast, w?: $protobuf.Writer): $protobuf.Writer;
             public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.DeviceCapabilities.BusinessBroadcast;
@@ -4210,6 +4244,8 @@ export namespace proto {
             initialSyncMaxMessagesPerChat?: (number|null);
             supportManusHistory?: (boolean|null);
             supportHatchHistory?: (boolean|null);
+            supportedBotChannelFbids?: (string[]|null);
+            supportInlineContacts?: (boolean|null);
         }
 
         class HistorySyncConfig implements IHistorySyncConfig {
@@ -4236,6 +4272,8 @@ export namespace proto {
             public initialSyncMaxMessagesPerChat?: (number|null);
             public supportManusHistory?: (boolean|null);
             public supportHatchHistory?: (boolean|null);
+            public supportedBotChannelFbids: string[];
+            public supportInlineContacts?: (boolean|null);
             public static create(properties?: proto.DeviceProps.IHistorySyncConfig): proto.DeviceProps.HistorySyncConfig;
             public static encode(m: proto.DeviceProps.IHistorySyncConfig, w?: $protobuf.Writer): $protobuf.Writer;
             public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.DeviceProps.HistorySyncConfig;
@@ -4704,6 +4742,42 @@ export namespace proto {
         }
     }
 
+    interface IGroupRootKeyShare {
+        keys?: (proto.IGroupRootKeyShareEntry[]|null);
+    }
+
+    class GroupRootKeyShare implements IGroupRootKeyShare {
+        constructor(p?: proto.IGroupRootKeyShare);
+        public keys: proto.IGroupRootKeyShareEntry[];
+        public static create(properties?: proto.IGroupRootKeyShare): proto.GroupRootKeyShare;
+        public static encode(m: proto.IGroupRootKeyShare, w?: $protobuf.Writer): $protobuf.Writer;
+        public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.GroupRootKeyShare;
+        public static fromObject(d: { [k: string]: any }): proto.GroupRootKeyShare;
+        public static toObject(m: proto.GroupRootKeyShare, o?: $protobuf.IConversionOptions): { [k: string]: any };
+        public toJSON(): { [k: string]: any };
+        public static getTypeUrl(typeUrlPrefix?: string): string;
+    }
+
+    interface IGroupRootKeyShareEntry {
+        groupRootKey?: (Uint8Array|null);
+        keyId?: (string|null);
+        expiryTimestampMs?: (number|Long|null);
+    }
+
+    class GroupRootKeyShareEntry implements IGroupRootKeyShareEntry {
+        constructor(p?: proto.IGroupRootKeyShareEntry);
+        public groupRootKey?: (Uint8Array|null);
+        public keyId?: (string|null);
+        public expiryTimestampMs?: (number|Long|null);
+        public static create(properties?: proto.IGroupRootKeyShareEntry): proto.GroupRootKeyShareEntry;
+        public static encode(m: proto.IGroupRootKeyShareEntry, w?: $protobuf.Writer): $protobuf.Writer;
+        public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.GroupRootKeyShareEntry;
+        public static fromObject(d: { [k: string]: any }): proto.GroupRootKeyShareEntry;
+        public static toObject(m: proto.GroupRootKeyShareEntry, o?: $protobuf.IConversionOptions): { [k: string]: any };
+        public toJSON(): { [k: string]: any };
+        public static getTypeUrl(typeUrlPrefix?: string): string;
+    }
+
     interface IHandshakeMessage {
         clientHello?: (proto.HandshakeMessage.IClientHello|null);
         serverHello?: (proto.HandshakeMessage.IServerHello|null);
@@ -4760,6 +4834,7 @@ export namespace proto {
             sendServerHelloPaddedBytes?: (boolean|null);
             simulateXxkemFs?: (boolean|null);
             pqMode?: (proto.HandshakeMessage.HandshakePqMode|null);
+            extendedEphemeral?: (Uint8Array|null);
         }
 
         class ClientHello implements IClientHello {
@@ -4773,6 +4848,7 @@ export namespace proto {
             public sendServerHelloPaddedBytes?: (boolean|null);
             public simulateXxkemFs?: (boolean|null);
             public pqMode?: (proto.HandshakeMessage.HandshakePqMode|null);
+            public extendedEphemeral?: (Uint8Array|null);
             public static create(properties?: proto.HandshakeMessage.IClientHello): proto.HandshakeMessage.ClientHello;
             public static encode(m: proto.HandshakeMessage.IClientHello, w?: $protobuf.Writer): $protobuf.Writer;
             public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.HandshakeMessage.ClientHello;
@@ -4800,6 +4876,7 @@ export namespace proto {
             payload?: (Uint8Array|null);
             extendedStatic?: (Uint8Array|null);
             paddingBytes?: (Uint8Array|null);
+            extendedCiphertext?: (Uint8Array|null);
         }
 
         class ServerHello implements IServerHello {
@@ -4809,6 +4886,7 @@ export namespace proto {
             public payload?: (Uint8Array|null);
             public extendedStatic?: (Uint8Array|null);
             public paddingBytes?: (Uint8Array|null);
+            public extendedCiphertext?: (Uint8Array|null);
             public static create(properties?: proto.HandshakeMessage.IServerHello): proto.HandshakeMessage.ServerHello;
             public static encode(m: proto.HandshakeMessage.IServerHello, w?: $protobuf.Writer): $protobuf.Writer;
             public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.HandshakeMessage.ServerHello;
@@ -4838,6 +4916,8 @@ export namespace proto {
         shareableChatIdentifierEncryptionKey?: (Uint8Array|null);
         accounts?: (proto.IAccount[]|null);
         nctSalt?: (Uint8Array|null);
+        inlineContacts?: (proto.IInlineContact[]|null);
+        inlineContactsProvided?: (boolean|null);
     }
 
     class HistorySync implements IHistorySync {
@@ -4860,6 +4940,8 @@ export namespace proto {
         public shareableChatIdentifierEncryptionKey?: (Uint8Array|null);
         public accounts: proto.IAccount[];
         public nctSalt?: (Uint8Array|null);
+        public inlineContacts: proto.IInlineContact[];
+        public inlineContactsProvided?: (boolean|null);
         public static create(properties?: proto.IHistorySync): proto.HistorySync;
         public static encode(m: proto.IHistorySync, w?: $protobuf.Writer): $protobuf.Writer;
         public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.HistorySync;
@@ -5127,6 +5209,30 @@ export namespace proto {
         }
     }
 
+    interface IInlineContact {
+        pnJid?: (string|null);
+        lidJid?: (string|null);
+        fullName?: (string|null);
+        firstName?: (string|null);
+        username?: (string|null);
+    }
+
+    class InlineContact implements IInlineContact {
+        constructor(p?: proto.IInlineContact);
+        public pnJid?: (string|null);
+        public lidJid?: (string|null);
+        public fullName?: (string|null);
+        public firstName?: (string|null);
+        public username?: (string|null);
+        public static create(properties?: proto.IInlineContact): proto.InlineContact;
+        public static encode(m: proto.IInlineContact, w?: $protobuf.Writer): $protobuf.Writer;
+        public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.InlineContact;
+        public static fromObject(d: { [k: string]: any }): proto.InlineContact;
+        public static toObject(m: proto.InlineContact, o?: $protobuf.IConversionOptions): { [k: string]: any };
+        public toJSON(): { [k: string]: any };
+        public static getTypeUrl(typeUrlPrefix?: string): string;
+    }
+
     interface IInteractiveAnnotation {
         polygonVertices?: (proto.IPoint[]|null);
         shouldSkipConfirmation?: (boolean|null);
@@ -5355,8 +5461,7 @@ export namespace proto {
             UNKNOWN = 0,
             CHAT_SETTING = 1,
             BIZ_SUPPORTS_FB_HOSTING = 2,
-            UNKNOWN_GROUP = 3,
-            DEPRECATION = 4
+            UNKNOWN_GROUP = 3
         }
     }
 
@@ -5619,6 +5724,7 @@ export namespace proto {
         conditionalRevealMessage?: (proto.Message.IConditionalRevealMessage|null);
         pollAddOptionMessage?: (proto.Message.IPollAddOptionMessage|null);
         eventInviteMessage?: (proto.Message.IEventInviteMessage|null);
+        groupRootKeyShare?: (proto.IGroupRootKeyShare|null);
     }
 
     class Message implements IMessage {
@@ -5725,6 +5831,7 @@ export namespace proto {
         public conditionalRevealMessage?: (proto.Message.IConditionalRevealMessage|null);
         public pollAddOptionMessage?: (proto.Message.IPollAddOptionMessage|null);
         public eventInviteMessage?: (proto.Message.IEventInviteMessage|null);
+        public groupRootKeyShare?: (proto.IGroupRootKeyShare|null);
         public static create(properties?: proto.IMessage): proto.Message;
         public static encode(m: proto.IMessage, w?: $protobuf.Writer): $protobuf.Writer;
         public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.Message;
@@ -6264,7 +6371,8 @@ export namespace proto {
             enum CloudAPIThreadControl {
                 UNKNOWN = 0,
                 CONTROL_PASSED = 1,
-                CONTROL_TAKEN = 2
+                CONTROL_TAKEN = 2,
+                INFO = 3
             }
 
             interface ICloudAPIThreadControlNotificationContent {
@@ -8372,6 +8480,7 @@ export namespace proto {
                 onDemandMsgCount?: (number|null);
                 oldestMsgTimestampMs?: (number|Long|null);
                 accountLid?: (string|null);
+                supportInlineResponse?: (boolean|null);
             }
 
             class HistorySyncOnDemandRequest implements IHistorySyncOnDemandRequest {
@@ -8382,6 +8491,7 @@ export namespace proto {
                 public onDemandMsgCount?: (number|null);
                 public oldestMsgTimestampMs?: (number|Long|null);
                 public accountLid?: (string|null);
+                public supportInlineResponse?: (boolean|null);
                 public static create(properties?: proto.Message.PeerDataOperationRequestMessage.IHistorySyncOnDemandRequest): proto.Message.PeerDataOperationRequestMessage.HistorySyncOnDemandRequest;
                 public static encode(m: proto.Message.PeerDataOperationRequestMessage.IHistorySyncOnDemandRequest, w?: $protobuf.Writer): $protobuf.Writer;
                 public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.Message.PeerDataOperationRequestMessage.HistorySyncOnDemandRequest;
@@ -8655,7 +8765,8 @@ export namespace proto {
                     GENERIC_ERROR = 3,
                     ERROR_REQUEST_ON_NON_SMB_PRIMARY = 4,
                     ERROR_HOSTED_DEVICE_NOT_CONNECTED = 5,
-                    ERROR_HOSTED_DEVICE_LOGIN_TIME_NOT_SET = 6
+                    ERROR_HOSTED_DEVICE_LOGIN_TIME_NOT_SET = 6,
+                    ERROR_MULTI_PROVIDER_NOT_CONFIGURED = 7
                 }
 
                 interface IHistorySyncChunkRetryResponse {
@@ -9281,8 +9392,7 @@ export namespace proto {
                 AI_QUERY_FANOUT = 29,
                 GROUP_MEMBER_LABEL_CHANGE = 30,
                 AI_MEDIA_COLLECTION_MESSAGE = 31,
-                MESSAGE_UNSCHEDULE = 32,
-                BOT_UNLINK_MESSAGE = 33
+                MESSAGE_UNSCHEDULE = 32
             }
         }
 
@@ -9661,6 +9771,7 @@ export namespace proto {
             isLottie?: (boolean|null);
             accessibilityLabel?: (string|null);
             premium?: (number|null);
+            emojis?: (string|null);
         }
 
         class StickerMessage implements IStickerMessage {
@@ -9686,6 +9797,7 @@ export namespace proto {
             public isLottie?: (boolean|null);
             public accessibilityLabel?: (string|null);
             public premium?: (number|null);
+            public emojis?: (string|null);
             public static create(properties?: proto.Message.IStickerMessage): proto.Message.StickerMessage;
             public static encode(m: proto.Message.IStickerMessage, w?: $protobuf.Writer): $protobuf.Writer;
             public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.Message.StickerMessage;
@@ -10181,6 +10293,7 @@ export namespace proto {
         limitSharingV2?: (proto.ILimitSharing|null);
         threadId?: (proto.IThreadID[]|null);
         weblinkRenderConfig?: (proto.WebLinkRenderConfig|null);
+        teeBotMetadata?: (Uint8Array|null);
     }
 
     class MessageContextInfo implements IMessageContextInfo {
@@ -10201,6 +10314,7 @@ export namespace proto {
         public limitSharingV2?: (proto.ILimitSharing|null);
         public threadId: proto.IThreadID[];
         public weblinkRenderConfig?: (proto.WebLinkRenderConfig|null);
+        public teeBotMetadata?: (Uint8Array|null);
         public static create(properties?: proto.IMessageContextInfo): proto.MessageContextInfo;
         public static encode(m: proto.IMessageContextInfo, w?: $protobuf.Writer): $protobuf.Writer;
         public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.MessageContextInfo;
@@ -11389,6 +11503,26 @@ export namespace proto {
         public static getTypeUrl(typeUrlPrefix?: string): string;
     }
 
+    interface IScheduledMessageMetadata {
+        revealKeyId?: (string|null);
+        revealKey?: (Uint8Array|null);
+        scheduledTime?: (number|Long|null);
+    }
+
+    class ScheduledMessageMetadata implements IScheduledMessageMetadata {
+        constructor(p?: proto.IScheduledMessageMetadata);
+        public revealKeyId?: (string|null);
+        public revealKey?: (Uint8Array|null);
+        public scheduledTime?: (number|Long|null);
+        public static create(properties?: proto.IScheduledMessageMetadata): proto.ScheduledMessageMetadata;
+        public static encode(m: proto.IScheduledMessageMetadata, w?: $protobuf.Writer): $protobuf.Writer;
+        public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.ScheduledMessageMetadata;
+        public static fromObject(d: { [k: string]: any }): proto.ScheduledMessageMetadata;
+        public static toObject(m: proto.ScheduledMessageMetadata, o?: $protobuf.IConversionOptions): { [k: string]: any };
+        public toJSON(): { [k: string]: any };
+        public static getTypeUrl(typeUrlPrefix?: string): string;
+    }
+
     interface ISenderKeyDistributionMessage {
         id?: (number|null);
         iteration?: (number|null);
@@ -12482,6 +12616,7 @@ export namespace proto {
             participants?: (proto.SyncActionValue.IBroadcastListParticipant[]|null);
             listName?: (string|null);
             labelIds?: (string[]|null);
+            audienceExpression?: (string|null);
         }
 
         class BusinessBroadcastListAction implements IBusinessBroadcastListAction {
@@ -12490,6 +12625,7 @@ export namespace proto {
             public participants: proto.SyncActionValue.IBroadcastListParticipant[];
             public listName?: (string|null);
             public labelIds: string[];
+            public audienceExpression?: (string|null);
             public static create(properties?: proto.SyncActionValue.IBusinessBroadcastListAction): proto.SyncActionValue.BusinessBroadcastListAction;
             public static encode(m: proto.SyncActionValue.IBusinessBroadcastListAction, w?: $protobuf.Writer): $protobuf.Writer;
             public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.SyncActionValue.BusinessBroadcastListAction;
@@ -12918,7 +13054,8 @@ export namespace proto {
                 SERVER_ASSIGNED = 7,
                 DRAFTED = 8,
                 AI_HANDOFF = 9,
-                CHANNELS = 10
+                CHANNELS = 10,
+                AI_RESPONDING = 11
             }
         }
 
@@ -13560,6 +13697,8 @@ export namespace proto {
             isStatusNotificationEnabled?: (boolean|null);
             statusNotificationToneId?: (number|null);
             shouldPlaySoundForCallNotification?: (boolean|null);
+            chatThemeId?: (string|null);
+            colorSchemeId?: (string|null);
         }
 
         class SettingsSyncAction implements ISettingsSyncAction {
@@ -13595,6 +13734,8 @@ export namespace proto {
             public isStatusNotificationEnabled?: (boolean|null);
             public statusNotificationToneId?: (number|null);
             public shouldPlaySoundForCallNotification?: (boolean|null);
+            public chatThemeId?: (string|null);
+            public colorSchemeId?: (string|null);
             public static create(properties?: proto.SyncActionValue.ISettingsSyncAction): proto.SyncActionValue.SettingsSyncAction;
             public static encode(m: proto.SyncActionValue.ISettingsSyncAction, w?: $protobuf.Writer): $protobuf.Writer;
             public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.SyncActionValue.SettingsSyncAction;
@@ -13651,7 +13792,9 @@ export namespace proto {
                 IS_GROUP_REACTIONS_NOTIFICATION_ENABLED = 28,
                 IS_STATUS_NOTIFICATION_ENABLED = 29,
                 STATUS_NOTIFICATION_TONE_ID = 30,
-                SHOULD_PLAY_SOUND_FOR_CALL_NOTIFICATION = 31
+                SHOULD_PLAY_SOUND_FOR_CALL_NOTIFICATION = 31,
+                CHAT_THEME_ID = 32,
+                COLOR_SCHEME_ID = 33
             }
 
             enum SettingPlatform {
@@ -13700,6 +13843,7 @@ export namespace proto {
             userJid?: (string[]|null);
             shareToFB?: (boolean|null);
             shareToIG?: (boolean|null);
+            customLists?: (proto.SyncActionValue.StatusPrivacyAction.ICustomList[]|null);
         }
 
         class StatusPrivacyAction implements IStatusPrivacyAction {
@@ -13708,6 +13852,7 @@ export namespace proto {
             public userJid: string[];
             public shareToFB?: (boolean|null);
             public shareToIG?: (boolean|null);
+            public customLists: proto.SyncActionValue.StatusPrivacyAction.ICustomList[];
             public static create(properties?: proto.SyncActionValue.IStatusPrivacyAction): proto.SyncActionValue.StatusPrivacyAction;
             public static encode(m: proto.SyncActionValue.IStatusPrivacyAction, w?: $protobuf.Writer): $protobuf.Writer;
             public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.SyncActionValue.StatusPrivacyAction;
@@ -13719,11 +13864,36 @@ export namespace proto {
 
         namespace StatusPrivacyAction {
 
+            interface ICustomList {
+                listId?: (string|null);
+                name?: (string|null);
+                emoji?: (string|null);
+                isSelected?: (boolean|null);
+                userJid?: (string[]|null);
+            }
+
+            class CustomList implements ICustomList {
+                constructor(p?: proto.SyncActionValue.StatusPrivacyAction.ICustomList);
+                public listId?: (string|null);
+                public name?: (string|null);
+                public emoji?: (string|null);
+                public isSelected?: (boolean|null);
+                public userJid: string[];
+                public static create(properties?: proto.SyncActionValue.StatusPrivacyAction.ICustomList): proto.SyncActionValue.StatusPrivacyAction.CustomList;
+                public static encode(m: proto.SyncActionValue.StatusPrivacyAction.ICustomList, w?: $protobuf.Writer): $protobuf.Writer;
+                public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.SyncActionValue.StatusPrivacyAction.CustomList;
+                public static fromObject(d: { [k: string]: any }): proto.SyncActionValue.StatusPrivacyAction.CustomList;
+                public static toObject(m: proto.SyncActionValue.StatusPrivacyAction.CustomList, o?: $protobuf.IConversionOptions): { [k: string]: any };
+                public toJSON(): { [k: string]: any };
+                public static getTypeUrl(typeUrlPrefix?: string): string;
+            }
+
             enum StatusDistributionMode {
                 ALLOW_LIST = 0,
                 DENY_LIST = 1,
                 CONTACTS = 2,
-                CLOSE_FRIENDS = 3
+                CLOSE_FRIENDS = 3,
+                CUSTOM_LIST = 4
             }
         }
 
@@ -14731,6 +14901,8 @@ export namespace proto {
         quarantinedMessage?: (proto.IQuarantinedMessage|null);
         nonJidMentions?: (number|null);
         hsmTag?: (string|null);
+        ephemeralExpirationTimestamp?: (number|Long|null);
+        scheduledMessageMetadata?: (proto.IScheduledMessageMetadata|null);
     }
 
     class WebMessageInfo implements IWebMessageInfo {
@@ -14803,6 +14975,8 @@ export namespace proto {
         public quarantinedMessage?: (proto.IQuarantinedMessage|null);
         public nonJidMentions?: (number|null);
         public hsmTag?: (string|null);
+        public ephemeralExpirationTimestamp?: (number|Long|null);
+        public scheduledMessageMetadata?: (proto.IScheduledMessageMetadata|null);
         public static create(properties?: proto.IWebMessageInfo): proto.WebMessageInfo;
         public static encode(m: proto.IWebMessageInfo, w?: $protobuf.Writer): $protobuf.Writer;
         public static decode(r: ($protobuf.Reader|Uint8Array), l?: number): proto.WebMessageInfo;
@@ -15054,7 +15228,9 @@ export namespace proto {
             QUARANTINED_MESSAGE = 220,
             GROUP_MEMBER_SHARE_GROUP_HISTORY_MODE = 221,
             GROUP_OPEN_BOT_ADDED = 222,
-            GROUP_TEE_BOT_ADDED = 223
+            GROUP_TEE_BOT_ADDED = 223,
+            CONTACT_INFO = 224,
+            SCHEDULED_MESSAGE_CREATED = 225
         }
     }
 

docs/VIEW_ONCE.md

@@ -0,0 +1,531 @@
+# Mensagens View-Once (Visualização Única) — Guia de Implementação
+
+**Data:** 2026-03-23
+**Versão:** 1.0
+
+---
+
+## 1. O que é View-Once
+
+Mensagem de visualização única é um tipo especial de mídia (imagem, vídeo ou áudio) que o destinatário pode abrir apenas uma vez. Após abrir, o conteúdo some permanentemente.
+
+---
+
+> ## ⚠️ RESTRIÇÃO CRÍTICA — Contas Hosted (Meta Business Cloud API)
+>
+> **Contas registradas como "hosted" na Meta Business Cloud API têm view-once bloqueado pelo servidor do WhatsApp.**
+>
+> Essa restrição se aplica a **todos os clientes** (Android, iOS, WA Web) e **não há como contornar por código** — é uma política imposta diretamente pelo servidor WA para contas hosted.
+>
+> **Como identificar se sua conta é hosted:**
+> - A conta foi criada via Meta Business Cloud API (WABA)
+> - Aparece como "Meta" ou "Business Cloud" nas configurações do WhatsApp Business Manager
+>
+> **Contas não-hosted** (registradas diretamente via QR code ou pair code) **funcionam normalmente** com view-once.
+
+---
+
+**Comportamento em cada dispositivo após envio via API (contas não-hosted):**
+
+| Dispositivo | O que aparece |
+|---|---|
+| Destinatário (Android/iOS) | Recebe a mídia com ícone de olhinho — pode abrir uma vez |
+| Android principal do remetente | Mostra na conversa que a mensagem foi enviada (ícone de olhinho) |
+| WA Web do remetente | "Aguardando mensagem. Abra o WhatsApp no seu celular." |
+
+> **Nota:** A mensagem "Aguardando mensagem..." no WA Web é o comportamento correto e esperado quando o envio vem de um companion (API). É uma limitação do protocolo WhatsApp — o servidor só permite que o celular principal notifique companions com o conteúdo da view-once.
+
+---
+
+## 2. Como Enviar via API
+
+### 2.1 Imagem
+
+```bash
+curl -X POST https://sua-api.com/v1/messages/send_image \
+  -H "Content-Type: application/json" \
+  -H "x-api-key: SEU_API_KEY" \
+  -d '{
+    "instance": "nome-da-instancia",
+    "to": "5511999999999",
+    "caption": "Olha só isso!",
+    "imageUrl": "https://exemplo.com/foto.jpg",
+    "viewOnce": true
+  }'
+```
+
+**Resposta de sucesso:**
+```json
+{ "ok": true }
+```
+
+### 2.2 Vídeo
+
+```bash
+curl -X POST https://sua-api.com/v1/messages/send_video \
+  -H "Content-Type: application/json" \
+  -H "x-api-key: SEU_API_KEY" \
+  -d '{
+    "instance": "nome-da-instancia",
+    "to": "5511999999999",
+    "caption": "Assista uma vez",
+    "videoUrl": "https://exemplo.com/video.mp4",
+    "viewOnce": true
+  }'
+```
+
+### 2.3 Áudio
+
+```bash
+curl -X POST https://sua-api.com/v1/messages/send_audio \
+  -H "Content-Type: application/json" \
+  -H "x-api-key: SEU_API_KEY" \
+  -d '{
+    "instance": "nome-da-instancia",
+    "to": "5511999999999",
+    "audioUrl": "https://exemplo.com/audio.ogg",
+    "ptt": false,
+    "viewOnce": true
+  }'
+```
+
+### 2.4 Usando Base64 (sem URL pública)
+
+```bash
+curl -X POST https://sua-api.com/v1/messages/send_image \
+  -H "Content-Type: application/json" \
+  -H "x-api-key: SEU_API_KEY" \
+  -d '{
+    "instance": "nome-da-instancia",
+    "to": "5511999999999",
+    "imageBase64": "data:image/jpeg;base64,/9j/4AAQSkZJRgAB...",
+    "viewOnce": true
+  }'
+```
+
+---
+
+## 3. Como Receber via Webhook
+
+Quando um contato envia uma mensagem de visualização única para o número conectado na API, o webhook recebe o evento com `key.isViewOnce = true`.
+
+### 3.1 Estrutura do evento recebido
+
+```json
+{
+  "event": "messages.upsert",
+  "instance": "nome-da-instancia",
+  "data": {
+    "messages": [
+      {
+        "key": {
+          "remoteJid": "5511999999999@s.whatsapp.net",
+          "fromMe": false,
+          "id": "3EB0ABCDEF123456",
+          "isViewOnce": true
+        },
+        "message": {
+          "viewOnceMessageV2": {
+            "message": {
+              "imageMessage": {
+                "url": "https://mmg.whatsapp.net/...",
+                "mimetype": "image/jpeg",
+                "mediaKey": "base64...",
+                "fileEncSha256": "base64...",
+                "directPath": "/v/...",
+                "viewOnce": true
+              }
+            }
+          }
+        },
+        "messageTimestamp": 1742700000,
+        "pushName": "João Silva"
+      }
+    ],
+    "type": "notify"
+  }
+}
+```
+
+### 3.2 Como identificar que é view-once
+
+O campo principal para identificar é `key.isViewOnce = true`. Existem dois caminhos para confirmar:
+
+```javascript
+function isViewOnce(msg) {
+  // Caminho 1: flag direta (mais simples)
+  if (msg.key?.isViewOnce) return true
+
+  // Caminho 2: verificar o wrapper da mensagem
+  const inner =
+    msg.message?.viewOnceMessageV2?.message ||
+    msg.message?.viewOnceMessage?.message ||
+    msg.message?.viewOnceMessageV2Extension?.message
+
+  return !!(
+    inner?.imageMessage?.viewOnce ||
+    inner?.videoMessage?.viewOnce ||
+    inner?.audioMessage?.viewOnce
+  )
+}
+```
+
+### 3.3 Como acessar a mídia
+
+```javascript
+function getViewOnceMedia(msg) {
+  const inner =
+    msg.message?.viewOnceMessageV2?.message ||
+    msg.message?.viewOnceMessage?.message ||
+    msg.message?.viewOnceMessageV2Extension?.message
+
+  if (!inner) return null
+
+  if (inner.imageMessage) return { type: 'image', media: inner.imageMessage }
+  if (inner.videoMessage) return { type: 'video', media: inner.videoMessage }
+  if (inner.audioMessage) return { type: 'audio', media: inner.audioMessage }
+
+  return null
+}
+
+// Uso:
+const media = getViewOnceMedia(msg)
+if (media) {
+  console.log(`View-once ${media.type}`)
+  console.log('URL:', media.media.url)
+  console.log('DirectPath:', media.media.directPath)
+  console.log('MediaKey:', media.media.mediaKey) // necessário para download
+}
+```
+
+---
+
+## 4. Como Exibir numa Ferramenta (Frontend/CRM)
+
+### 4.1 Lógica de detecção e exibição
+
+```javascript
+function renderMessage(msg) {
+  if (!isViewOnce(msg)) {
+    // Renderizar mensagem normal
+    return renderNormalMessage(msg)
+  }
+
+  const media = getViewOnceMedia(msg)
+  if (!media) return
+
+  // Verificar se já foi aberta (controle local da ferramenta)
+  const alreadyOpened = localStorage.getItem(`vo_${msg.key.id}`)
+
+  if (alreadyOpened) {
+    // Mostrar placeholder de "já visualizado"
+    return renderViewOncePlaceholder(media.type, msg.key.fromMe)
+  }
+
+  if (msg.key.fromMe) {
+    // Mensagem enviada por mim — nunca mostrar conteúdo
+    return renderSentViewOnce(media.type)
+  }
+
+  // Mensagem recebida — mostrar botão para "abrir uma vez"
+  return renderViewOnceButton(media.type, msg)
+}
+```
+
+### 4.2 Componente de exibição — mensagem recebida
+
+```javascript
+function renderViewOnceButton(type, msg) {
+  const icons = { image: '📷', video: '🎥', audio: '🎵' }
+  const labels = { image: 'Foto', video: 'Vídeo', áudio: 'Áudio' }
+
+  return `
+    <div class="view-once-bubble received">
+      <span class="view-once-icon">${icons[type]}</span>
+      <span class="view-once-label">${labels[type]} de visualização única</span>
+      <button onclick="openViewOnce('${msg.key.id}', '${type}')">
+        Abrir
+      </button>
+    </div>
+  `
+}
+
+async function openViewOnce(msgId, type) {
+  // 1. Marcar como aberta ANTES de mostrar (só uma chance)
+  localStorage.setItem(`vo_${msgId}`, '1')
+
+  // 2. Baixar e mostrar a mídia
+  const mediaUrl = await downloadViewOnceMedia(msgId)
+  showMedia(type, mediaUrl)
+
+  // 3. Após fechar/visualizar, substituir pelo placeholder
+  onMediaClosed(() => {
+    replaceWithPlaceholder(msgId, type)
+  })
+}
+```
+
+### 4.3 Componente de exibição — mensagem enviada
+
+```javascript
+function renderSentViewOnce(type) {
+  const labels = { image: 'Foto', video: 'Vídeo', audio: 'Áudio' }
+  return `
+    <div class="view-once-bubble sent">
+      <span class="view-once-icon">👁️</span>
+      <span>${labels[type]} de visualização única</span>
+      <span class="view-once-status">Enviada</span>
+    </div>
+  `
+}
+```
+
+### 4.4 Placeholder após visualização
+
+```javascript
+function renderViewOncePlaceholder(type, fromMe) {
+  const labels = { image: 'foto', video: 'vídeo', audio: 'áudio' }
+  const text = fromMe
+    ? `Você enviou uma ${labels[type]} de visualização única`
+    : `${labels[type]} de visualização única aberta`
+
+  return `
+    <div class="view-once-bubble placeholder">
+      <span class="view-once-icon">🚫</span>
+      <span>${text}</span>
+    </div>
+  `
+}
+```
+
+### 4.5 CSS sugerido
+
+```css
+.view-once-bubble {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 10px 14px;
+  border-radius: 12px;
+  max-width: 280px;
+}
+
+.view-once-bubble.received {
+  background: #f0f0f0;
+  color: #333;
+}
+
+.view-once-bubble.sent {
+  background: #dcf8c6;
+  color: #333;
+  align-self: flex-end;
+}
+
+.view-once-bubble.placeholder {
+  background: #e8e8e8;
+  color: #999;
+  font-style: italic;
+}
+
+.view-once-bubble button {
+  background: #25d366;
+  color: white;
+  border: none;
+  border-radius: 8px;
+  padding: 6px 12px;
+  cursor: pointer;
+  font-size: 13px;
+}
+```
+
+---
+
+## 5. Código Implementado na API
+
+### 5.1 Geração da mensagem — `src/Utils/messages.ts`
+
+Quando `viewOnce: true` é passado, a mídia é encapsulada no wrapper moderno `viewOnceMessageV2` (campo 55 do proto) e o flag `viewOnce=true` é setado na mídia interna:
+
+```typescript
+if (hasOptionalProperty(message, 'viewOnce') && !!message.viewOnce) {
+    // Seta viewOnce=true na mensagem de mídia interna
+    if (m.imageMessage) m.imageMessage.viewOnce = true
+    else if (m.videoMessage) m.videoMessage.viewOnce = true
+    else if (m.audioMessage) m.audioMessage.viewOnce = true
+    // Usa viewOnceMessageV2 (campo 55) — formato atual do WA
+    m = { viewOnceMessageV2: { message: m } }
+}
+```
+
+### 5.2 Envio — `src/Socket/messages-send.ts`
+
+**Detecção de view-once real** (não confunde com botões/listas que também usam o wrapper `viewOnceMessage`):
+
+```typescript
+// Detecta view-once real pela flag viewOnce na mídia interna.
+// viewOnceMessage* wrappers são também usados por botões/listas/carrosséis
+// (que carregam interactiveMessage dentro) — esses NÃO têm viewOnce=true na mídia.
+const viewOnceInner =
+    message.viewOnceMessageV2?.message ||
+    message.viewOnceMessage?.message ||
+    message.viewOnceMessageV2Extension?.message
+const isViewOnceMsg = !!(
+    viewOnceInner?.imageMessage?.viewOnce ||
+    viewOnceInner?.videoMessage?.viewOnce ||
+    viewOnceInner?.audioMessage?.viewOnce
+)
+
+// Para view-once: DSM enviado apenas para o celular principal (device=0).
+// Companions (device>0) são omitidos — o servidor WA gera
+// <unavailable type="view_once"/> automaticamente para eles.
+const viewOnceMeRecipients = isViewOnceMsg
+    ? meRecipients.filter(jid => !jidDecode(jid)?.device)
+    : meRecipients
+
+// assertSessions apenas para quem vai realmente receber
+await assertSessions([...viewOnceMeRecipients, ...otherRecipients])
+
+const [meNodes, otherNodes] = await Promise.all([
+    createParticipantNodes(viewOnceMeRecipients, meMsg || message, extraAttrs),
+    createParticipantNodes(otherRecipients, message, extraAttrs)
+])
+participants.push(...meNodes)
+participants.push(...otherNodes)
+
+// phash recalculado com os participantes reais
+const phashRecipients = isViewOnceMsg
+    ? [...viewOnceMeRecipients, ...otherRecipients]
+    : [...meRecipients, ...otherRecipients]
+if (phashRecipients.length > 0) {
+    extraAttrs['phash'] = generateParticipantHashV2(phashRecipients)
+}
+```
+
+**`getMediaType()` — garante que vídeo e áudio view-once sejam entregues:**
+
+```typescript
+const getMediaType = (message: proto.IMessage) => {
+    // Desencapsula wrapper view-once antes de verificar o tipo de mídia.
+    // Sem isso, message.videoMessage e message.audioMessage são undefined
+    // (estão dentro do wrapper) e o atributo mediatype ficaria ausente no
+    // enc node — o servidor WA descarta silenciosamente vídeo/áudio view-once.
+    const inner =
+        message.viewOnceMessage?.message ||
+        message.viewOnceMessageV2?.message ||
+        message.viewOnceMessageV2Extension?.message
+    if (inner) {
+        return getMediaType(inner)
+    }
+
+    if (message.imageMessage) return 'image'
+    else if (message.videoMessage) return 'video'
+    // ...
+}
+```
+
+### 5.3 Recepção — `src/Utils/decode-wa-message.ts`
+
+Quando a API recebe uma view-once como companion (linked device), o servidor envia dois stanzas:
+
+- **Stanza 1** (`enc`): conteúdo completo com metadados da mídia
+- **Stanza 2** (`unavailable type="view_once"`): sinal de sync
+
+O stanza 1 é detectado e marcado corretamente:
+
+```typescript
+// Detecta view-once na stanza 1 recebida por linked device.
+// O wrapper viewOnceMessage também é usado por mensagens interativas
+// (interactiveMessage, listMessage) — esses NÃO têm viewOnce=true na mídia.
+const viewOnceInner =
+    msg.viewOnceMessage?.message ||
+    msg.viewOnceMessageV2?.message ||
+    msg.viewOnceMessageV2Extension?.message
+if (
+    viewOnceInner?.imageMessage?.viewOnce ||
+    viewOnceInner?.videoMessage?.viewOnce ||
+    viewOnceInner?.audioMessage?.viewOnce
+) {
+    fullMessage.key.isViewOnce = true
+}
+```
+
+---
+
+## 6. Fluxo Completo
+
+```
+API envia view-once para destinatário
+│
+├── Protobuf gerado:
+│   viewOnceMessageV2 {
+│     message {
+│       imageMessage { viewOnce: true, url, mediaKey, ... }
+│     }
+│   }
+│
+├── Stanza enviado ao servidor WA:
+│   <message to="destinatario@s.whatsapp.net" type="media">
+│     <enc type="pkmsg">...viewOnceMessageV2 cifrado...</enc>   ← para o destinatário
+│     <participants>
+│       <to jid="meu-numero:0@lid">                             ← celular principal
+│         <enc type="msg">...DSM{viewOnceMessageV2}...</enc>
+│       </to>
+│       <!-- device>0 omitidos — servidor gera unavailable -->
+│     </participants>
+│   </message>
+│
+└── Distribuição pelo servidor:
+    ├── Destinatário      → recebe enc → abre uma vez ✅
+    ├── Celular principal → recebe DSM → mostra "você enviou" ✅
+    └── WA Web            → recebe <unavailable> → "Aguardando..." ✅
+
+
+Destinatário envia view-once de volta para a API
+│
+├── Stanza recebido pela API (stanza 1 — enc com conteúdo):
+│   <message from="destinatario@s.whatsapp.net" type="media">
+│     <enc type="msg">...viewOnceMessageV2 cifrado...</enc>
+│   </message>
+│
+├── decode-wa-message.ts:
+│   └── Descriptografa → detecta viewOnce=true → seta key.isViewOnce=true
+│
+├── Stanza recebido (stanza 2 — unavailable, ignorado):
+│   <message from="...">
+│     <unavailable type="view_once"/>
+│   </message>
+│
+└── Webhook emitido:
+    messages.upsert → msg.key.isViewOnce = true ✅
+```
+
+---
+
+## 7. Limitações
+
+| Situação | Comportamento | Motivo |
+|---|---|---|
+| **Conta hosted (Meta Business Cloud API)** | **View-once bloqueado para todos os clientes** | **Política do servidor WA para contas hosted — sem workaround** |
+| WA Web do remetente | "Aguardando mensagem. Abra no celular." | Servidor WA só aceita `<unavailable>` vindo do celular principal, não de companions |
+| View-once de documento/sticker | Não suportado | Limitação do protocolo WA — só imagem, vídeo e áudio |
+| `error_479` nos logs | Normal, não é erro | TcToken é atualizado após o envio de view-once |
+| Companion não consegue abrir | Por design | O conteúdo não é entregue para linked devices |
+
+---
+
+## 8. Checklist de Validação
+
+**Envio:**
+- [ ] Destinatário recebe com ícone de olhinho
+- [ ] Destinatário consegue abrir a mídia
+- [ ] Após abrir, a mídia some
+- [ ] Celular principal do remetente mostra "você enviou" com ícone de olhinho
+- [ ] WA Web do remetente mostra "Aguardando mensagem..."
+- [ ] Funciona para imagem, vídeo e áudio
+- [ ] Logs mostram `📤 Message sent` (error_479 é normal)
+
+**Recepção:**
+- [ ] Webhook recebe `key.isViewOnce = true`
+- [ ] `viewOnceMessageV2.message.imageMessage` (ou video/audio) está presente
+- [ ] API não crasha ao receber view-once de outro dispositivo
+- [ ] Mensagem interativa (botão/lista) enviada após view-once não é afetada

src/Defaults/baileys-version.json

@@ -1 +1 @@
-{"version":[2,3000,1035406580]}
+{"version":[2,3000,1037137890]}

src/Defaults/index.ts

@@ -154,7 +154,20 @@ export const MEDIA_PATH_MAP: { [T in MediaType]?: string } = {
 	'md-msg-hist': '/mms/md-app-state',
 	'biz-cover-photo': '/pps/biz-cover-photo',
 	'sticker-pack': '/mms/sticker-pack',
-	'thumbnail-sticker-pack': '/mms/thumbnail-sticker-pack'
+	'thumbnail-sticker-pack': '/mms/thumbnail-sticker-pack',
+	// View-once types — same upload path as regular media (server CDN routing TBD)
+	'viewonce-image': '/mms/image',
+	'viewonce-video': '/mms/video',
+	'viewonce-audio': '/mms/audio'
+}
+
+export const NEWSLETTER_MEDIA_PATH_MAP: { [T in MediaType]?: string } = {
+	image: '/newsletter/newsletter-image',
+	video: '/newsletter/newsletter-video',
+	document: '/newsletter/newsletter-document',
+	audio: '/newsletter/newsletter-audio',
+	sticker: '/newsletter/newsletter-image',
+	'thumbnail-link': '/newsletter/newsletter-image'
 }
 
 export const MEDIA_HKDF_KEY_MAPPING = {
@@ -178,7 +191,11 @@ export const MEDIA_HKDF_KEY_MAPPING = {
 	ptv: 'Video',
 	'biz-cover-photo': 'Image',
 	'sticker-pack': 'Sticker Pack',
-	'thumbnail-sticker-pack': 'Sticker Pack Thumbnail'
+	'thumbnail-sticker-pack': 'Sticker Pack Thumbnail',
+	// View-once types — same HKDF keys as regular types (recipients decrypt with normal keys)
+	'viewonce-image': 'Image',
+	'viewonce-video': 'Video',
+	'viewonce-audio': 'Audio'
 }
 
 export type MediaType = keyof typeof MEDIA_HKDF_KEY_MAPPING
@@ -188,10 +205,12 @@ export const MEDIA_KEYS = Object.keys(MEDIA_PATH_MAP) as MediaType[]
 /** 120s timeout for history sync stall detection, same as WA Web's handleChunkProgress / restartPausedTimer (g = 120) */
 export const HISTORY_SYNC_PAUSED_TIMEOUT_MS = 120_000
 
-export const MIN_PREKEY_COUNT = 5
+// Replenishment threshold: when server count drops below this, top-up back to INITIAL_PREKEY_COUNT
+export const MIN_PREKEY_COUNT = 200
 
-// Moderate prekey count (upstream uses 812, reduced to balance rate limiting and availability)
-export const INITIAL_PREKEY_COUNT = 200
+// Initial pool size matching WA Business (CDP IDB capture: prekey-store = 812 on registration)
+// Rounded to 800 for cleanliness; replenishment always tops up to this value
+export const INITIAL_PREKEY_COUNT = 800
 
 export const UPLOAD_TIMEOUT = 30000 // 30 seconds
 // Moderate upload interval to balance rate limiting and responsiveness (was 5000)

src/Socket/messages-recv.ts

@@ -7,6 +7,7 @@ import { proto } from '../../WAProto/index.js'
 import {
 	DEFAULT_CACHE_TTLS,
 	DEFAULT_SESSION_CLEANUP_CONFIG,
+	INITIAL_PREKEY_COUNT,
 	KEY_BUNDLE_TYPE,
 	MIN_PREKEY_COUNT,
 	PLACEHOLDER_MAX_AGE_SECONDS,
@@ -48,9 +49,12 @@ import {
 	getStatusFromReceiptType,
 	handleIdentityChange,
 	hkdf,
+	BAD_MAC_ERROR_TEXT,
+	DECRYPTION_RETRY_CONFIG,
 	MISSING_KEYS_ERROR_TEXT,
 	NACK_REASONS,
 	NO_MESSAGE_FOUND_ERROR_TEXT,
+	RetryReason,
 	normalizeKeyLidToPn,
 	normalizeMessageJids,
 	resolveLidToPn,
@@ -1212,7 +1216,7 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 		return await query(stanza)
 	}
 
-	const sendRetryRequest = async (node: BinaryNode, forceIncludeKeys = false) => {
+	const sendRetryRequest = async (node: BinaryNode, forceIncludeKeys = false, decryptionError?: string) => {
 		const { fullMessage } = decodeMessageNode(node, authState.creds.me!.id, authState.creds.me!.lid || '')
 		const { key: msgKey } = fullMessage
 		const msgId = msgKey.id!
@@ -1310,39 +1314,39 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 		const { account, signedPreKey, signedIdentityKey: identityKey } = authState.creds
 		const fromJid = node.attrs.from!
 
-		// Check if we should recreate the session
-		let shouldRecreateSession = false
-		let recreateReason = ''
-
-		if (enableAutoSessionRecreation && messageRetryManager && retryCount >= 1) {
-			try {
-				// Check if we have a session with this JID
-				const sessionId = signalRepository.jidToSignalProtocolAddress(fromJid)
-				const hasSession = await signalRepository.validateSession(fromJid)
-
-				// Extract error code from retry node if present (for MAC error detection)
-				const retryNode = getBinaryNodeChild(node, 'retry')
-				const errorAttr = retryNode?.attrs?.error
-				const errorCode = messageRetryManager.parseRetryErrorCode(errorAttr)
-
-				const result = messageRetryManager.shouldRecreateSession(fromJid, hasSession.exists, errorCode)
-				shouldRecreateSession = result.recreate
-				recreateReason = result.reason
-
-				if (shouldRecreateSession) {
-					logger.debug({ fromJid, retryCount, reason: recreateReason, errorCode }, 'recreating session for retry')
-					// Delete existing session to force recreation
-					// CRITICAL: Use same transaction key as encrypt/decrypt operations to prevent race
-					// Using meId ensures this delete serializes with sendMessage() and other session operations
-					await authState.keys.transaction(async () => {
-						await authState.keys.set({ session: { [sessionId]: null } })
-					}, authState.creds.me?.id || 'session-operation')
-					forceIncludeKeys = true
-				}
-			} catch (error) {
-				logger.warn({ error, fromJid }, 'failed to check session recreation')
-			}
-		}
+		// Derive the Signal error code from the actual decryption failure message.
+		// Sent in the retry receipt so the peer (even another InfiniteAPI instance)
+		// knows the exact failure type and can recreate the session immediately
+		// instead of falling back to the 1-hour timeout.
+		//
+		// Codes mirror RetryReason enum in message-retry-manager.ts:
+		//   0 = UnknownError | 1 = NoSession  | 2 = InvalidKey
+		//   3 = InvalidKeyId | 4 = InvalidMessage | 7 = BadMac
+		//
+		// Uses DECRYPTION_RETRY_CONFIG error lists (single source of truth in
+		// decode-wa-message.ts) so additions to those lists are picked up here
+		// automatically.
+		//
+		// NOTE: We do NOT delete the session here (receiver side). The Signal Protocol
+		// recovers automatically when the sender's pkmsg arrives — it overwrites the
+		// corrupted session. Deleting prematurely creates a race window where no session
+		// exists, which can cause "No Session" errors on concurrent messages.
+		const retryErrorCode = (() => {
+			if (!decryptionError) return RetryReason.UnknownError
+			// Bad MAC must be checked first — it is also in corruptedSessionErrors
+			// but warrants the more specific code 7 over the generic code 4.
+			if (decryptionError.includes(BAD_MAC_ERROR_TEXT)) return RetryReason.SignalErrorBadMac
+			// MessageCounterError and other corrupted-session variants
+			if (DECRYPTION_RETRY_CONFIG.corruptedSessionErrors.some(e => decryptionError.includes(e))) return RetryReason.SignalErrorInvalidMessage
+			// Missing / invalid session record
+			if (DECRYPTION_RETRY_CONFIG.sessionRecordErrors.some(e => decryptionError.includes(e)) ||
+				/no\s+(open\s+)?sessions?/i.test(decryptionError)) return RetryReason.SignalErrorNoSession
+			// PreKey / key-id errors
+			if (/pre\s*key/i.test(decryptionError)) return RetryReason.SignalErrorInvalidKeyId
+			// Identity / key errors
+			if (/invalid\s*key|untrusted\s*identity/i.test(decryptionError)) return RetryReason.SignalErrorInvalidKey
+			return RetryReason.UnknownError
+		})()
 
 		if (retryCount <= 2) {
 			// Use new retry manager for phone requests if available
@@ -1383,8 +1387,7 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 							id: node.attrs.id!,
 							t: node.attrs.t!,
 							v: '1',
-							// ADD ERROR FIELD
-							error: '0'
+							error: retryErrorCode.toString()
 						}
 					},
 					{
@@ -1403,7 +1406,7 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 				receipt.attrs.participant = node.attrs.participant
 			}
 
-			if (retryCount > 1 || forceIncludeKeys || shouldRecreateSession) {
+			if (retryCount > 1 || forceIncludeKeys) {
 				const { update, preKeys } = await getNextPreKeys(authState, 1)
 
 				const [keyId] = Object.keys(preKeys)
@@ -1440,7 +1443,8 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 
 			logger.debug({ count, shouldUploadMorePreKeys }, 'recv pre-key count')
 			if (shouldUploadMorePreKeys) {
-				await uploadPreKeys()
+				// Top-up back to INITIAL_PREKEY_COUNT so the pool is always restored to full size
+				await uploadPreKeys(Math.max(1, INITIAL_PREKEY_COUNT - count))
 			}
 		} else {
 			const result = await handleIdentityChange(node, {
@@ -2247,10 +2251,16 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 		}
 
 		const encNode = getBinaryNodeChild(node, 'enc')
-		// TODO: temporary fix for crashes and issues resulting of failed msmsg decryption
-		if (encNode?.attrs.type === 'msmsg') {
-			logger.debug({ key: node.attrs.key }, 'ignored msmsg')
-			await sendMessageAck(node, NACK_REASONS.MissingMessageSecret)
+		// msmsg block removed — allow msmsg decryption (required for view-once on linked devices)
+
+		// Handle view-once unavailable sync from primary device.
+		// When the primary device sends a view-once, linked companions receive
+		// <unavailable type="view_once"/> — no enc content, just a sync signal.
+		// Acknowledge and skip decryption (nothing to decrypt).
+		const unavailableNode = getBinaryNodeChild(node, 'unavailable')
+		if (unavailableNode?.attrs?.type === 'view_once') {
+			logger.debug({ id: node.attrs.id, from: node.attrs.from }, 'received view_once unavailable sync from primary device')
+			await sendMessageAck(node)
 			return
 		}
 
@@ -2367,6 +2377,15 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 								{ msgId: msg.key?.id, messageType },
 								'CTWA: Skipping placeholder resend for unavailable fanout type'
 							)
+							// For view-once: emit the message as a stub so consumers know it arrived.
+							// Use 'notify' for live messages so realtime consumers get the event.
+							if (messageType === 'view_once_unavailable_fanout') {
+								msg.key.isViewOnce = true
+								msg.messageStubType = proto.WebMessageInfo.StubType.CIPHERTEXT
+								msg.messageStubParameters = ['view_once_unavailable']
+								const upsertType = node.attrs.offline ? 'append' : 'notify'
+								await upsertMessage(msg, upsertType)
+							}
 							metrics.ctwaRecoveryFailures.inc({ reason: 'unavailable_fanout' })
 							return sendMessageAck(node)
 						}
@@ -2505,7 +2524,7 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 							}
 
 							const encNode = getBinaryNodeChild(node, 'enc')
-							await sendRetryRequest(node, !encNode)
+							await sendRetryRequest(node, !encNode, errorMessage)
 							if (retryRequestDelayMs) {
 								await delay(retryRequestDelayMs)
 							}
@@ -2514,7 +2533,7 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 							// Still attempt retry even if pre-key upload failed
 							try {
 								const encNode = getBinaryNodeChild(node, 'enc')
-								await sendRetryRequest(node, !encNode)
+								await sendRetryRequest(node, !encNode, errorMessage)
 							} catch (retryErr) {
 								logger.error({ retryErr }, 'Failed to send retry after error handling')
 							}
@@ -2548,6 +2567,11 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 
 						await sendReceipt(msg.key.remoteJid!, participant!, [msg.key.id!], type)
 
+						// NOTE: do NOT send view_once_read from a linked device (API).
+						// WA shows view-once as view_once_unavailable_fanout on linked devices — only the
+						// primary phone sends view_once_read when the user actually opens it.
+						// Sending it from a linked device causes WA to flag the account and disables view-once.
+
 						// send ack for history message
 						const isAnyHistoryMsg = getHistoryMsg(msg.message!)
 						if (isAnyHistoryMsg) {

src/Socket/messages-send.ts

@@ -9,6 +9,7 @@ import type {
 	AlbumMessageOptions,
 	AlbumSendResult,
 	AnyMessageContent,
+	LIDMapping,
 	MediaConnInfo,
 	MessageReceiptType,
 	MessageRelayOptions,
@@ -338,6 +339,33 @@ export const makeMessagesSocket = (config: SocketConfig) => {
 				}
 			}
 
+			// 4th LID→PN source: device-list entries sharing the same raw_id
+			// WA Business uses this for accounts where HistorySync sends zero phoneNumberToLidMappings
+			const allEntries = [...result.list, ...result.sideList]
+			const rawIdMap = new Map<number, { pn?: string; lid?: string }>()
+			for (const item of allEntries) {
+				if (typeof item.rawId !== 'number' || isNaN(item.rawId)) continue
+				const decoded = jidDecode(item.id)
+				if (!decoded) continue
+				const entry = rawIdMap.get(item.rawId) || {}
+				if (decoded.server === 'lid' || decoded.server === 'hosted.lid') {
+					entry.lid = item.id
+				} else if (decoded.server === 's.whatsapp.net' || decoded.server === 'c.us') {
+					entry.pn = item.id
+				}
+				rawIdMap.set(item.rawId, entry)
+			}
+			const rawIdMappings: LIDMapping[] = []
+			for (const { pn, lid } of rawIdMap.values()) {
+				if (pn && lid) {
+					rawIdMappings.push({ lid: jidNormalizedUser(lid), pn: jidNormalizedUser(pn) })
+				}
+			}
+			if (rawIdMappings.length > 0) {
+				await signalRepository.lidMapping.storeLIDPNMappings(rawIdMappings)
+				logger.debug({ count: rawIdMappings.length }, 'stored LID-PN mappings from raw_id pairing')
+			}
+
 			const meId = authState.creds.me?.id
 			if (!meId) throw new Boom('Not authenticated', { statusCode: 401 })
 			const meLid = authState.creds.me?.lid || ''
@@ -1013,7 +1041,8 @@ export const makeMessagesSocket = (config: SocketConfig) => {
 		}
 
 		await authState.keys.transaction(async () => {
-			const mediaType = getMediaType(message)
+			// normalizeMessageContent unwraps viewOnceMessage/viewOnceMessageV2 so getMediaType works correctly
+			const mediaType = getMediaType(normalizeMessageContent(message) || message)
 			if (mediaType) {
 				extraAttrs['mediatype'] = mediaType
 			}
@@ -1023,7 +1052,7 @@ export const makeMessagesSocket = (config: SocketConfig) => {
 				const bytes = encodeNewsletterMessage(patched as proto.IMessage)
 				binaryNodeContent.push({
 					tag: 'plaintext',
-					attrs: {},
+					attrs: mediaType ? { mediatype: mediaType } : {},
 					content: bytes
 				})
 				const stanza: BinaryNode = {
@@ -1045,6 +1074,8 @@ export const makeMessagesSocket = (config: SocketConfig) => {
 				extraAttrs['decrypt-fail'] = 'hide' // todo: expand for reactions and other types
 			}
 
+			// view_once_write disabled — causes server to drop message (validation fails for linked device sessions)
+
 			if (isGroupOrStatus && !isRetryResend) {
 				const [groupData, senderKeyMap] = await Promise.all([
 					(async () => {
@@ -1249,21 +1280,48 @@ export const makeMessagesSocket = (config: SocketConfig) => {
 					: otherRecipients
 				const effectiveAllRecipients = [...effectiveMeRecipients, ...effectiveOtherRecipients]
 
-				await assertSessions(effectiveAllRecipients)
+				// P2: detect actual view-once media by checking inner message's viewOnce flag.
+				// viewOnceMessage wrapper is also used for interactive messages (buttons, lists, etc)
+				// which do NOT carry viewOnce=true on the media — those must NOT be filtered.
+				const viewOnceInner =
+					message.viewOnceMessageV2?.message ||
+					message.viewOnceMessage?.message ||
+					message.viewOnceMessageV2Extension?.message
+				const isViewOnceMsg = !!(
+					viewOnceInner?.imageMessage?.viewOnce ||
+					viewOnceInner?.videoMessage?.viewOnce ||
+					viewOnceInner?.audioMessage?.viewOnce
+				)
+
+				// For view-once: only send DSM to primary phone (device=0).
+				// Companion devices (device>0) are omitted — WA server generates
+				// <unavailable type="view_once"/> for them automatically.
+				// Sending explicit <unavailable> from a companion is rejected by the server.
+				const viewOnceMeRecipients = isViewOnceMsg
+					? effectiveMeRecipients.filter(jid => !jidDecode(jid)?.device)
+					: effectiveMeRecipients
+
+				// P3: assert sessions only for recipients we actually encrypt for.
+				// For view-once, companions are omitted — asserting their sessions is wasteful
+				// and could block the send if a companion session is corrupted.
+				await assertSessions([...viewOnceMeRecipients, ...effectiveOtherRecipients])
 
 				const [
 					{ nodes: meNodes, shouldIncludeDeviceIdentity: s1 },
 					{ nodes: otherNodes, shouldIncludeDeviceIdentity: s2 }
 				] = await Promise.all([
-					// For own devices: use DSM (deviceSentMessage) wrapper
-					createParticipantNodes(effectiveMeRecipients, meMsg || message, extraAttrs),
+					createParticipantNodes(viewOnceMeRecipients, meMsg || message, extraAttrs),
 					createParticipantNodes(effectiveOtherRecipients, message, extraAttrs)
 				])
 				participants.push(...meNodes)
 				participants.push(...otherNodes)
 
-				if (effectiveMeRecipients.length > 0 || effectiveOtherRecipients.length > 0) {
-					extraAttrs['phash'] = generateParticipantHashV2(effectiveAllRecipients)
+				// phash: para view-once inclui só celular principal + destinatários
+				const phashRecipients = isViewOnceMsg
+					? [...viewOnceMeRecipients, ...effectiveOtherRecipients]
+					: effectiveAllRecipients
+				if (phashRecipients.length > 0) {
+					extraAttrs['phash'] = generateParticipantHashV2(phashRecipients)
 				}
 
 				shouldIncludeDeviceIdentity = shouldIncludeDeviceIdentity || s1 || s2
@@ -1869,6 +1927,15 @@ export const makeMessagesSocket = (config: SocketConfig) => {
 	}
 
 	const getMediaType = (message: proto.IMessage) => {
+		// For view-once media, unwrap the viewOnceMessage wrapper before checking media type
+		const inner =
+			message.viewOnceMessage?.message ||
+			message.viewOnceMessageV2?.message ||
+			message.viewOnceMessageV2Extension?.message
+		if (inner) {
+			return getMediaType(inner)
+		}
+
 		if (message.imageMessage) {
 			return 'image'
 		} else if (message.videoMessage) {

src/Socket/newsletter.ts

@@ -123,11 +123,11 @@ export const makeNewsletterSocket = (config: SocketConfig) => {
 		},
 
 		newsletterMute: (jid: string) => {
-			return executeWMexQuery({ newsletter_id: jid }, QueryIds.MUTE, XWAPaths.xwa2_newsletter_mute_v2)
+			return executeWMexQuery({ input: { newsletter_id: jid, type: 'MUTE_ADMIN_ACTIVITY', value: 'OFF' } }, QueryIds.MUTE, XWAPaths.xwa2_newsletter_mute_v2)
 		},
 
 		newsletterUnmute: (jid: string) => {
-			return executeWMexQuery({ newsletter_id: jid }, QueryIds.UNMUTE, XWAPaths.xwa2_newsletter_unmute_v2)
+			return executeWMexQuery({ input: { newsletter_id: jid, type: 'MUTE_ADMIN_ACTIVITY', value: 'ON' } }, QueryIds.UNMUTE, XWAPaths.xwa2_newsletter_unmute_v2)
 		},
 
 		newsletterUpdateName: async (jid: string, name: string) => {

src/Socket/socket.ts

@@ -701,10 +701,12 @@ export const makeSocket = (config: SocketConfig) => {
 			}
 		}
 
-		// Prevent multiple concurrent uploads
+		// Prevent multiple concurrent uploads — if one is already running, wait for it and return:
+		// the concurrent upload already replenished the pool, so there is nothing left to do.
 		if (uploadPreKeysPromise) {
 			logger.debug('Pre-key upload already in progress, waiting for completion')
 			await uploadPreKeysPromise
+			return
 		}
 
 		const uploadLogic = async () => {
@@ -784,14 +786,15 @@ export const makeSocket = (config: SocketConfig) => {
 		try {
 			let count = 0
 			const preKeyCount = await getAvailablePreKeysOnServer()
-			if (preKeyCount === 0) count = INITIAL_PREKEY_COUNT
-			else count = MIN_PREKEY_COUNT
+			// How many to upload: top-up to INITIAL_PREKEY_COUNT from whatever remains on server
+			count = Math.max(0, INITIAL_PREKEY_COUNT - preKeyCount)
 			const { exists: currentPreKeyExists, currentPreKeyId } = await verifyCurrentPreKeyExists()
 
 			logger.info(`${preKeyCount} pre-keys found on server`)
 			logger.info(`Current prekey ID: ${currentPreKeyId}, exists in storage: ${currentPreKeyExists}`)
 
-			const lowServerCount = preKeyCount <= count
+			// Trigger upload when below the replenishment threshold, not when count < topUp amount
+			const lowServerCount = preKeyCount < MIN_PREKEY_COUNT
 			const missingCurrentPreKey = !currentPreKeyExists && currentPreKeyId > 0
 
 			const shouldUpload = lowServerCount || missingCurrentPreKey
@@ -1151,7 +1154,7 @@ export const makeSocket = (config: SocketConfig) => {
 		// Decrement active connections
 		decrementActiveConnections()
 
-		clearInterval(keepAliveReq)
+		clearTimeout(keepAliveReq)
 		clearTimeout(qrTimer)
 
 		// Clear offline-buffer safety timer so its callback cannot call ev.flush()
@@ -1262,8 +1265,16 @@ export const makeSocket = (config: SocketConfig) => {
 		})
 	}
 
-	const startKeepAliveRequest = () =>
-		(keepAliveReq = setInterval(() => {
+	const startKeepAliveRequest = () => {
+		// Use recursive setTimeout with ±15% jitter to match WA Desktop behaviour
+		// (WA Business Desktop: ~25-30s intervals with natural variance)
+		const scheduleNextKeepAlive = () => {
+			const jitter = keepAliveIntervalMs * 0.15
+			const delay = keepAliveIntervalMs + Math.floor((Math.random() * 2 - 1) * jitter)
+			keepAliveReq = setTimeout(onKeepAliveTick, delay)
+		}
+
+		const onKeepAliveTick = () => {
 			if (!lastDateRecv) {
 				lastDateRecv = new Date()
 			}
@@ -1275,6 +1286,7 @@ export const makeSocket = (config: SocketConfig) => {
 			*/
 			if (diff > keepAliveIntervalMs + 5000) {
 				void end(new Boom('Connection was lost', { statusCode: DisconnectReason.connectionLost }))
+				return // connection closing — do not reschedule
 			} else if (ws.isOpen) {
 				// Send keep-alive ping via sendNode() (fire-and-forget) instead of query().
 				// query() wraps the ping in the query circuit breaker — when that breaker is
@@ -1297,7 +1309,15 @@ export const makeSocket = (config: SocketConfig) => {
 			} else {
 				logger.warn('keep alive called when WS not open')
 			}
-		}, keepAliveIntervalMs))
+
+			// Do not reschedule once shutdown has started (closed set by end() on any concurrent path)
+			if (!closed) {
+				scheduleNextKeepAlive()
+			}
+		}
+
+		scheduleNextKeepAlive()
+	}
 	/** i have no idea why this exists. pls enlighten me */
 	const sendPassiveIq = (tag: 'passive' | 'active') =>
 		query({

src/Types/Events.ts

@@ -27,6 +27,8 @@ export type BaileysEventMap = {
 		chats: Chat[]
 		contacts: Contact[]
 		messages: WAMessage[]
+		/** Past participants for group chats (people who left/were removed). userJid is always a phone number (PN), never a LID. */
+		pastParticipants?: proto.IPastParticipants[] | null
 		isLatest?: boolean
 		progress?: number | null
 		syncType?: proto.HistorySync.HistorySyncType | null
@@ -185,6 +187,8 @@ export type BufferedEventData = {
 		chats: { [jid: string]: Chat }
 		contacts: { [jid: string]: Contact }
 		messages: { [uqId: string]: WAMessage }
+		/** Keyed by groupJid for O(1) deduplication across chunks */
+		pastParticipants: { [groupJid: string]: proto.IPastParticipant[] }
 		empty: boolean
 		isLatest: boolean
 		progress?: number | null

src/Types/Message.ts

@@ -155,6 +155,7 @@ export type MessageReceiptType =
 	| 'sender'
 	| 'inactive'
 	| 'played'
+	| 'view_once_read'
 	| undefined
 
 export type MediaConnInfo = {
@@ -178,6 +179,8 @@ export interface WAUrlInfo {
 type Mentionable = {
 	/** list of jids that are mentioned in the accompanying text */
 	mentions?: string[]
+	/** mention all participants in the group */
+	mentionAll?: boolean
 }
 type Contextable = {
 	/** add contextInfo to the message */
@@ -990,8 +993,16 @@ export type MessageGenerationOptionsFromContent = MiscMessageGenerationOptions &
 
 export type WAMediaUploadFunction = (
 	encFilePath: string,
-	opts: { fileEncSha256B64: string; mediaType: MediaType; timeoutMs?: number }
-) => Promise<{ mediaUrl: string; directPath: string; meta_hmac?: string; ts?: number; fbid?: number }>
+	opts: { fileEncSha256B64: string; mediaType: MediaType; timeoutMs?: number; newsletter?: boolean }
+) => Promise<{
+	mediaUrl: string | undefined
+	directPath: string
+	meta_hmac?: string
+	ts?: number
+	fbid?: number
+	thumbnailDirectPath?: string
+	thumbnailSha256?: string
+}>
 
 export type MediaGenerationOptions = {
 	logger?: ILogger

src/Types/Newsletter.ts

@@ -4,10 +4,10 @@ export enum XWAPaths {
 	xwa2_newsletter_view = 'xwa2_newsletter_view',
 	xwa2_newsletter_metadata = 'xwa2_newsletter',
 	xwa2_newsletter_admin_count = 'xwa2_newsletter_admin',
-	xwa2_newsletter_mute_v2 = 'xwa2_newsletter_mute_v2',
-	xwa2_newsletter_unmute_v2 = 'xwa2_newsletter_unmute_v2',
-	xwa2_newsletter_follow = 'xwa2_newsletter_follow',
-	xwa2_newsletter_unfollow = 'xwa2_newsletter_unfollow',
+	xwa2_newsletter_mute_v2 = 'xwa2_newsletter_update_user_setting',
+	xwa2_newsletter_unmute_v2 = 'xwa2_newsletter_update_user_setting',
+	xwa2_newsletter_follow = 'xwa2_newsletter_join_v2',
+	xwa2_newsletter_unfollow = 'xwa2_newsletter_leave_v2',
 	xwa2_newsletter_change_owner = 'xwa2_newsletter_change_owner',
 	xwa2_newsletter_demote = 'xwa2_newsletter_demote',
 	xwa2_newsletter_delete_v2 = 'xwa2_newsletter_delete_v2'
@@ -17,10 +17,10 @@ export enum QueryIds {
 	UPDATE_METADATA = '24250201037901610',
 	METADATA = '6563316087068696',
 	SUBSCRIBERS = '9783111038412085',
-	FOLLOW = '7871414976211147',
-	UNFOLLOW = '7238632346214362',
-	MUTE = '29766401636284406',
-	UNMUTE = '9864994326891137',
+	FOLLOW = '24404358912487870',
+	UNFOLLOW = '9767147403369991',
+	MUTE = '31938993655691868',
+	UNMUTE = '31938993655691868',
 	ADMIN_COUNT = '7130823597031706',
 	CHANGE_OWNER = '7341777602580933',
 	DEMOTE = '6551828931592903',

src/Utils/decode-wa-message.ts

@@ -392,6 +392,23 @@ export const decryptMessageNode = (
 						} else {
 							fullMessage.message = msg
 						}
+
+						// Detect view-once media on stanza 1 received by linked device.
+						// viewOnceMessage wrapper is also used for interactive messages
+						// (interactiveMessage, listMessage, nativeFlowMessage) -- those do NOT have
+						// imageMessage.viewOnce / videoMessage.viewOnce / audioMessage.viewOnce = true.
+						// Only real view-once media carries viewOnce: true on the inner media message.
+						const viewOnceInner =
+							msg.viewOnceMessage?.message ||
+							msg.viewOnceMessageV2?.message ||
+							msg.viewOnceMessageV2Extension?.message
+						if (
+							viewOnceInner?.imageMessage?.viewOnce ||
+							viewOnceInner?.videoMessage?.viewOnce ||
+							viewOnceInner?.audioMessage?.viewOnce
+						) {
+							fullMessage.key.isViewOnce = true
+						}
 					} catch (err: any) {
 						// Check if this is a final failure after all retries exhausted
 						const isRetryExhausted = err instanceof RetryExhaustedError

src/Utils/event-buffer.ts

@@ -1,4 +1,5 @@
 import EventEmitter from 'events'
+import { proto } from '../../WAProto/index.js'
 import type {
 	BaileysEvent,
 	BaileysEventEmitter,
@@ -890,6 +891,7 @@ const makeBufferData = (): BufferedEventData => {
 			chats: {},
 			messages: {},
 			contacts: {},
+			pastParticipants: {},
 			isLatest: false,
 			empty: true
 		},
@@ -967,6 +969,28 @@ function append<E extends BufferableEvent>(
 				}
 			}
 
+			// Merge pastParticipants with deduplication by groupJid and by userJid within each group.
+			// Multiple HistorySync chunks can carry the same group -- we merge rather than concatenate
+			// to avoid duplicate entries in the final event delivered to the consumer.
+			for (const group of (eventData.pastParticipants ?? []) as proto.IPastParticipants[]) {
+				const groupJid = group.groupJid
+				if (!groupJid) continue
+
+				if (!data.historySets.pastParticipants[groupJid]) {
+					data.historySets.pastParticipants[groupJid] = []
+				}
+
+				const existing = data.historySets.pastParticipants[groupJid]
+				const seenJids = new Set(existing.map(p => p.userJid).filter(Boolean))
+
+				for (const participant of (group.pastParticipants ?? []) as proto.IPastParticipant[]) {
+					if (participant.userJid && !seenJids.has(participant.userJid)) {
+						existing.push(participant)
+						seenJids.add(participant.userJid)
+					}
+				}
+			}
+
 			data.historySets.empty = false
 			data.historySets.syncType = eventData.syncType
 			data.historySets.progress = eventData.progress
@@ -1292,6 +1316,10 @@ function consolidateEvents(data: BufferedEventData) {
 			chats: Object.values(data.historySets.chats),
 			messages: Object.values(data.historySets.messages),
 			contacts: Object.values(data.historySets.contacts),
+			// Convert dedup map back to array. Each entry has groupJid + participants (all unique userJids).
+			pastParticipants: Object.entries(data.historySets.pastParticipants).map(
+				([groupJid, participants]) => ({ groupJid, pastParticipants: participants })
+			),
 			syncType: data.historySets.syncType,
 			progress: data.historySets.progress,
 			isLatest: data.historySets.isLatest,

src/Utils/history.ts

@@ -15,7 +15,8 @@ import {
 import { toNumber } from './generics'
 import type { ILogger } from './logger.js'
 import { normalizeMessageContent } from './messages'
-import { downloadContentFromMessage } from './messages-media'
+import { DEFAULT_ORIGIN } from '../Defaults'
+import { downloadContentFromMessage, getUrlFromDirectPath } from './messages-media'
 
 const inflatePromise = promisify(inflate)
 
@@ -374,10 +375,25 @@ export const processHistoryMessage = (item: proto.IHistorySync, logger?: ILogger
 	// Convert Map back to array for return
 	const lidPnMappings = Array.from(lidPnMap.values())
 
+	// Normalize pastParticipants: resolve LID userJids → PN so the consumer always
+	// receives a phone number, never an opaque LID identifier.
+	// Uses the lidPnMap built above (populated from phoneNumberToLidMappings + conversations).
+	// If a LID cannot be resolved, the original value is kept rather than dropping the participant.
+	const pastParticipants: proto.IPastParticipants[] = (item.pastParticipants ?? []).map(group => ({
+		groupJid: group.groupJid,
+		pastParticipants: (group.pastParticipants ?? []).map(participant => {
+			const userJid = participant.userJid
+			if (!userJid || !isAnyLidUser(userJid)) return participant
+			const mapping = lidPnMap.get(jidNormalizedUser(userJid))
+			return mapping?.pn ? { ...participant, userJid: mapping.pn } : participant
+		})
+	}))
+
 	return {
 		chats,
 		contacts,
 		messages,
+		pastParticipants,
 		lidPnMappings,
 		syncType: item.syncType,
 		progress: item.progress
@@ -408,7 +424,23 @@ export const downloadAndProcessHistorySyncNotification = async (
 		historyMsg = await downloadHistory(msg, options)
 	}
 
-	return processHistoryMessage(historyMsg, logger)
+	const result = processHistoryMessage(historyMsg, logger)
+
+	// Mirror WA Desktop behaviour: DELETE the CDN blob only after processing succeeds.
+	// Doing this earlier (e.g. inside downloadHistory) risks permanent history loss if
+	// processing throws — the server copy would be gone and retry after reconnect would fail.
+	if (msg.directPath) {
+		const cdnUrl = getUrlFromDirectPath(msg.directPath)
+		fetch(cdnUrl, {
+			...options,
+			method: 'DELETE',
+			headers: { ...((options as RequestInit).headers ?? {}), Origin: DEFAULT_ORIGIN }
+		}).catch(() => {
+			// non-fatal — server will expire it anyway
+		})
+	}
+
+	return result
 }
 
 /**

src/Utils/messages-media.ts

@@ -10,7 +10,13 @@ import { join } from 'path'
 import { Readable, Transform } from 'stream'
 import { URL } from 'url'
 import { proto } from '../../WAProto/index.js'
-import { DEFAULT_ORIGIN, MEDIA_HKDF_KEY_MAPPING, MEDIA_PATH_MAP, type MediaType } from '../Defaults'
+import {
+	DEFAULT_ORIGIN,
+	MEDIA_HKDF_KEY_MAPPING,
+	MEDIA_PATH_MAP,
+	type MediaType,
+	NEWSLETTER_MEDIA_PATH_MAP
+} from '../Defaults'
 import type {
 	BaileysEventMap,
 	DownloadableMessage,
@@ -681,6 +687,10 @@ type MediaUploadResult = {
 	meta_hmac?: string
 	ts?: number
 	fbid?: number
+	thumbnail_info?: {
+		thumbnail_sha256?: string
+		thumbnail_direct_path?: string
+	}
 }
 
 export type UploadParams = {
@@ -825,11 +835,21 @@ export const getWAUploadToServer = (
 	{ customUploadHosts, fetchAgent, logger, options }: SocketConfig,
 	refreshMediaConn: (force: boolean) => Promise<MediaConnInfo>
 ): WAMediaUploadFunction => {
-	return async (filePath, { mediaType, fileEncSha256B64, timeoutMs }) => {
+	return async (filePath, { mediaType, fileEncSha256B64, timeoutMs, newsletter }) => {
 		// send a query JSON to obtain the url & auth token to upload our media
 		let uploadInfo = await refreshMediaConn(false)
 
-		let urls: { mediaUrl: string; directPath: string; meta_hmac?: string; ts?: number; fbid?: number } | undefined
+		let urls:
+			| {
+					mediaUrl: string
+					directPath: string
+					meta_hmac?: string
+					ts?: number
+					fbid?: number
+					thumbnailDirectPath?: string
+					thumbnailSha256?: string
+			  }
+			| undefined
 		const hosts = [...customUploadHosts, ...uploadInfo.hosts]
 
 		fileEncSha256B64 = encodeBase64EncodedStringForUpload(fileEncSha256B64)
@@ -851,7 +871,11 @@ export const getWAUploadToServer = (
 			logger.debug(`uploading to "${hostname}"`)
 
 			const auth = encodeURIComponent(uploadInfo.auth)
-			const url = `https://${hostname}${MEDIA_PATH_MAP[mediaType]}/${fileEncSha256B64}?auth=${auth}&token=${fileEncSha256B64}`
+			const mediaPath = (newsletter ? NEWSLETTER_MEDIA_PATH_MAP[mediaType] : undefined) || MEDIA_PATH_MAP[mediaType]
+			let url = `https://${hostname}${mediaPath}/${fileEncSha256B64}?auth=${auth}&token=${fileEncSha256B64}`
+			if (newsletter) {
+				url += '&server_thumb_gen=1'
+			}
 
 			let result: MediaUploadResult | undefined
 			try {
@@ -868,11 +892,13 @@ export const getWAUploadToServer = (
 
 				if (result?.url || result?.direct_path) {
 					urls = {
-						mediaUrl: result.url!,
+						mediaUrl: result.url || result.direct_path!,
 						directPath: result.direct_path!,
 						meta_hmac: result.meta_hmac,
 						fbid: result.fbid,
-						ts: result.ts
+						ts: result.ts,
+						thumbnailDirectPath: result.thumbnail_info?.thumbnail_direct_path,
+						thumbnailSha256: result.thumbnail_info?.thumbnail_sha256
 					}
 					break
 				} else {

src/Utils/messages.ts

@@ -196,10 +196,11 @@ export const prepareWAMessageMedia = async (
 		)
 
 		const fileSha256B64 = fileSha256.toString('base64')
-		const { mediaUrl, directPath } = await options.upload(filePath, {
+		const { directPath, thumbnailDirectPath, thumbnailSha256 } = await options.upload(filePath, {
 			fileEncSha256B64: fileSha256B64,
 			mediaType: mediaType,
-			timeoutMs: options.mediaUploadTimeoutMs
+			timeoutMs: options.mediaUploadTimeoutMs,
+			newsletter: true
 		})
 
 		await fs.unlink(filePath)
@@ -207,10 +208,12 @@ export const prepareWAMessageMedia = async (
 		const obj = WAProto.Message.fromObject({
 			// todo: add more support here
 			[`${mediaType}Message`]: (MessageTypeProto as any)[mediaType].fromObject({
-				url: mediaUrl,
+				// url intentionally omitted — newsletters use directPath only
 				directPath,
 				fileSha256,
 				fileLength,
+				thumbnailDirectPath,
+				thumbnailSha256: thumbnailSha256 ? Buffer.from(thumbnailSha256, 'base64') : undefined,
 				...uploadData,
 				media: undefined
 			})
@@ -236,7 +239,7 @@ export const prepareWAMessageMedia = async (
 	const requiresDurationComputation = mediaType === 'audio' && typeof uploadData.seconds === 'undefined'
 	const requiresThumbnailComputation =
 		(mediaType === 'image' || mediaType === 'video') && typeof uploadData['jpegThumbnail'] === 'undefined'
-	const requiresWaveformProcessing = mediaType === 'audio' && uploadData.ptt === true
+	const requiresWaveformProcessing = mediaType === 'audio' && uploadData.ptt === true && typeof uploadData.waveform === 'undefined'
 	const requiresAudioBackground = options.backgroundColor && mediaType === 'audio' && uploadData.ptt === true
 	const requiresOriginalForSomeProcessing = requiresDurationComputation || requiresThumbnailComputation
 	const { mediaKey, encFilePath, originalFilePath, fileEncSha256, fileSha256, fileLength } = await encryptedStream(
@@ -254,7 +257,9 @@ export const prepareWAMessageMedia = async (
 		(async () => {
 			const result = await options.upload(encFilePath, {
 				fileEncSha256B64,
-				mediaType,
+				// Use mediaTypeOverride for upload path (e.g. 'viewonce-image' → /o1/mms/image)
+				// Encryption already used the override via encryptedStream above
+				mediaType: options.mediaTypeOverride || mediaType,
 				timeoutMs: options.mediaUploadTimeoutMs
 			})
 			logger?.debug({ mediaType, cacheableKey }, 'uploaded media')
@@ -292,7 +297,7 @@ export const prepareWAMessageMedia = async (
 					logger?.debug('computed audio duration')
 				}
 
-				if (requiresWaveformProcessing) {
+				if (requiresWaveformProcessing && !uploadData.waveform) {
 					uploadData.waveform = await getAudioWaveform(filePath, logger)
 					logger?.debug('processed waveform')
 				}
@@ -1747,22 +1752,49 @@ export const generateWAMessageContent = async (
 			}
 		}
 	} else {
-		m = await prepareWAMessageMedia(message, options)
+		// For view-once media, upload to the one-time CDN (/o1/mms/*) instead of regular CDN
+		// WA Web view-once messages always have directPath: /o1/v/t24/... (not /v/t62.7118-24/...)
+		// Using the wrong CDN causes WA server to flag the account and breaks view-once capability
+		const isViewOnce = hasOptionalProperty(message, 'viewOnce') && !!message.viewOnce
+		const viewOnceTypeMap: Record<string, string> = {
+			image: 'viewonce-image',
+			video: 'viewonce-video',
+			audio: 'viewonce-audio'
+		}
+		const viewOnceOverride = isViewOnce
+			? viewOnceTypeMap[Object.keys(message).find(k => k in viewOnceTypeMap) || '']
+			: undefined
+		m = await prepareWAMessageMedia(message, {
+			...options,
+			mediaTypeOverride: (viewOnceOverride as any) || options.mediaTypeOverride
+		})
 	}
 
 	if (hasOptionalProperty(message, 'viewOnce') && !!message.viewOnce) {
-		m = { viewOnceMessage: { message: m } }
+		// Also set viewOnce=true on the inner media message (required by WA app to render as view-once)
+		if (m.imageMessage) m.imageMessage.viewOnce = true
+		else if (m.videoMessage) m.videoMessage.viewOnce = true
+		else if (m.audioMessage) m.audioMessage.viewOnce = true
+		// Use viewOnceMessageV2 (field 55) — modern WA clients use this wrapper
+		// viewOnceMessage (field 37) is the old format which WA server no longer accepts with view_once_write
+		m = { viewOnceMessageV2: { message: m } }
 	}
 
-	if (hasOptionalProperty(message, 'mentions') && message.mentions?.length) {
+	if (
+		(hasOptionalProperty(message, 'mentions') && message.mentions?.length) ||
+		(hasOptionalProperty(message, 'mentionAll') && message.mentionAll)
+	) {
 		const messageType = Object.keys(m)[0] as Extract<keyof proto.IMessage, MessageWithContextInfo>
 		if (messageType) {
 			const key = m[messageType]
-			if (key && 'contextInfo' in key && !!key.contextInfo) {
+			if (key && 'contextInfo' in key) {
+				key.contextInfo = key.contextInfo || {}
+				if (message.mentions?.length) {
 					key.contextInfo.mentionedJid = message.mentions
-			} else if (key) {
-				key.contextInfo = {
-					mentionedJid: message.mentions
+				}
+
+				if (message.mentionAll) {
+					key.contextInfo.nonJidMentions = 1
 				}
 			}
 		}

src/WAUSync/USyncQuery.ts

@@ -10,7 +10,7 @@ import {
 } from './Protocols'
 import { USyncUser } from './USyncUser'
 
-export type USyncQueryResultList = { [protocol: string]: unknown; id: string }
+export type USyncQueryResultList = { [protocol: string]: unknown; id: string; rawId?: number }
 
 export type USyncQueryResult = {
 	list: USyncQueryResultList[]
@@ -68,10 +68,8 @@ export class USyncQuery {
 		//TODO: see if there are any errors in the result node
 		//const resultNode = getBinaryNodeChild(usyncNode, 'result')
 
-		const listNode = usyncNode ? getBinaryNodeChild(usyncNode, 'list') : undefined
-
-		if (listNode?.content && Array.isArray(listNode.content)) {
-			queryResult.list = listNode.content.reduce((acc: USyncQueryResultList[], node) => {
+		const parseNodeList = (content: BinaryNode[]): USyncQueryResultList[] =>
+			content.reduce((acc: USyncQueryResultList[], node) => {
 				const id = node?.attrs.jid
 				if (id) {
 					const data = Array.isArray(node?.content)
@@ -89,15 +87,24 @@ export class USyncQuery {
 									.filter(([, b]) => b !== null) as [string, unknown][]
 							)
 						: {}
-					acc.push({ ...data, id })
+					const rawIdAttr = node?.attrs?.['raw_id']
+					const rawId = rawIdAttr !== undefined ? Number(rawIdAttr) : undefined
+					acc.push({ ...data, id, ...(rawId !== undefined && !isNaN(rawId) ? { rawId } : {}) })
 				}
 
 				return acc
 			}, [])
+
+		const listNode = usyncNode ? getBinaryNodeChild(usyncNode, 'list') : undefined
+		if (listNode?.content && Array.isArray(listNode.content)) {
+			queryResult.list = parseNodeList(listNode.content)
+		}
+
+		const sideListNode = usyncNode ? getBinaryNodeChild(usyncNode, 'side_list') : undefined
+		if (sideListNode?.content && Array.isArray(sideListNode.content)) {
+			queryResult.sideList = parseNodeList(sideListNode.content)
 		}
 
-		//TODO: implement side list
-		//const sideListNode = getBinaryNodeChild(usyncNode, 'side_list')
 		return queryResult
 	}