DrSmoothl
5d1dbecf2e
Derive QQ NT's peerUid_chatType_msg_seq_random identity from its reverse-engineered static routing table before event dispatch. Unknown routes and incomplete identities fail open, while C2C and group peers use their native namespaces. Refines #266
258 lines
10 KiB
TypeScript
258 lines
10 KiB
TypeScript
// Regression for #137: inviting an official robot (e.g. 2854207029) into a
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// group makes QQ push the `group_member_increase` notice TWICE, so SnowLuma
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// reported two `notice.group_increase` while a normal member produced one.
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// QQ NT dedups system messages in `sys_msg_mgr.cc::ProcessRecvSysMsg` by a
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// global key whose per-message discriminators are msg_seq (contentHead field 5
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// = head.sequence) and random (contentHead field 4 = head.msgId); kernel-based
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// bots see events only after that dedup. SnowLuma reads the raw OlPush, so
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// parseMsgPush must replicate the drop for routes in QQ NT's static system-
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// message table, but only when given a dedup tracker (the live path). Ordinary
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// chat routes remain outside that table even when their outer msgType matches.
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import { describe, expect, it } from 'vitest';
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import type { PacketInfo } from '@snowluma/common/protocol-types';
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import { protobuf_encode } from '@snowluma/proton';
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import type { PushMsg, PushMsgBody } from '@snowluma/proto-defs/message';
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import type { GroupChange, OnlineDeviceNotify } from '@snowluma/proto-defs/notify';
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import type { IdentityService } from '../../src/identity-service';
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import {
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deriveSysMsgDedupIdentity,
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parseMsgPush,
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SysMsgDedup,
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type SysMsgDedupIdentity,
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} from '../../src/msg-push';
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const identity = { findUinByUid: () => null, findFriend: () => undefined } as unknown as IdentityService;
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function pushPacket(message: PushMsgBody): PacketInfo {
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return {
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pid: 0,
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uin: '2000000001',
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serviceCmd: 'trpc.msg.olpush.OlPushService.MsgPush',
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seqId: 0,
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retCode: 0,
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fromClient: false,
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body: protobuf_encode<PushMsg>({ message }),
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};
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}
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// A type-33 group member-increase push (the #137 shape). `memberUid` is a
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// numeric string so resolveUidToUin returns it without touching identity.
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function memberIncreasePush(opts: { groupId: number; memberUin: number; sequence: number; msgId: number }): PacketInfo {
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return pushPacket({
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responseHead: { fromUin: opts.groupId, fromUid: '' },
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contentHead: { msgType: 33, subType: 0, sequence: opts.sequence, timestamp: 1781540572, msgId: opts.msgId },
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body: { msgContent: protobuf_encode<GroupChange>({ groupUin: opts.groupId, memberUid: String(opts.memberUin) }) },
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});
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}
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function c2cPacket(msgType: number, subType: number): PacketInfo {
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return pushPacket({
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responseHead: { fromUin: 10001, fromUid: 'u_x' },
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contentHead: { msgType, subType, sequence: 900, timestamp: 1781540572, msgId: 7 },
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body: { richText: { elems: [{ text: { str: 'hi' } }] } },
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});
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}
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function onlineDevicesPush(deviceName: string): PacketInfo {
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return pushPacket({
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responseHead: { fromUin: 2000000001, fromUid: '' },
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contentHead: { msgType: 528, subType: 349, sequence: 800, timestamp: 1781540572, msgId: 555 },
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body: {
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msgContent: protobuf_encode<OnlineDeviceNotify>({
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devices: [{ appId: 537242075, instanceId: 202, clientType: 1, platform: 3, deviceName }],
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}),
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},
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});
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}
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function dedupIdentity(overrides: Partial<SysMsgDedupIdentity> = {}): SysMsgDedupIdentity {
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return {
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peerUid: '700',
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chatType: 2,
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sequence: 500,
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random: 12345,
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...overrides,
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};
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}
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function deriveIdentity(opts: {
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msgType: number;
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subType: number;
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sequence?: number;
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msgId?: number;
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fromUin?: number;
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fromUid?: string;
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}) {
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return deriveSysMsgDedupIdentity({
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head: {
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msgType: opts.msgType,
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subType: opts.subType,
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c2cCmd: 0,
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sequence: opts.sequence ?? 500,
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ntMsgSeq: 0,
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timestamp: 1781540572,
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msgId: opts.msgId ?? 12345,
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},
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fromUin: opts.fromUin ?? 700,
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fromUid: opts.fromUid ?? 'u_peer',
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});
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}
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describe('deriveSysMsgDedupIdentity', () => {
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it.each([
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[528, 290],
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[166, 75],
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[166, 129],
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[166, 131],
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[166, 133],
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[166, 135],
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[167, 133],
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])('maps native C2C route %d/%d to fromUid and chatType 1', (msgType, subType) => {
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expect(deriveIdentity({ msgType, subType, fromUin: 700, fromUid: 'u_peer' })).toEqual({
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peerUid: 'u_peer',
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chatType: 1,
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sequence: 500,
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random: 12345,
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});
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});
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it.each([
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[732, 12],
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[732, 16],
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[732, 20],
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[33, 0],
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[34, 0],
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[85, 0],
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])('maps native group route %d/%d to decimal fromUin and chatType 2', (msgType, subType) => {
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expect(deriveIdentity({ msgType, subType, fromUin: 700, fromUid: 'ignored' })).toEqual({
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peerUid: '700',
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chatType: 2,
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sequence: 500,
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random: 12345,
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});
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});
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it('[#266] fails open for an outer package pair absent from QQ NT’s static table', () => {
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expect(deriveIdentity({ msgType: 528, subType: 99 })).toBeNull();
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});
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it('fails open when the native sequence, random, or route-specific peer is missing', () => {
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expect(deriveIdentity({ msgType: 33, subType: 0, sequence: 0 })).toBeNull();
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expect(deriveIdentity({ msgType: 33, subType: 0, msgId: 0 })).toBeNull();
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expect(deriveIdentity({ msgType: 33, subType: 0, fromUin: 0 })).toBeNull();
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expect(deriveIdentity({ msgType: 528, subType: 290, fromUid: '' })).toBeNull();
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});
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});
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describe('SysMsgDedup', () => {
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it('flags the second push with the same native global key', () => {
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const d = new SysMsgDedup();
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expect(d.seenDuplicate(dedupIdentity())).toBe(false);
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expect(d.seenDuplicate(dedupIdentity())).toBe(true);
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});
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it('treats a different sequence, random, peer, or chat type as distinct', () => {
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const d = new SysMsgDedup();
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expect(d.seenDuplicate(dedupIdentity())).toBe(false);
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expect(d.seenDuplicate(dedupIdentity({ sequence: 501 }))).toBe(false);
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expect(d.seenDuplicate(dedupIdentity({ random: 99999 }))).toBe(false);
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expect(d.seenDuplicate(dedupIdentity({ peerUid: '701' }))).toBe(false);
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expect(d.seenDuplicate(dedupIdentity({ chatType: 1 }))).toBe(false);
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});
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it('[#266] dedups different listed outer routes that derive the same native identity', () => {
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const d = new SysMsgDedup();
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const first = deriveIdentity({ msgType: 166, subType: 133 });
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const alternateRoute = deriveIdentity({ msgType: 167, subType: 133 });
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expect(first).not.toBeNull();
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expect(alternateRoute).toEqual(first);
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expect(d.seenDuplicate(first!)).toBe(false);
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expect(d.seenDuplicate(alternateRoute!)).toBe(true);
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});
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it('[#266] does not record an unlisted outer route', () => {
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const d = new SysMsgDedup();
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const unlisted = deriveIdentity({ msgType: 528, subType: 99 });
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const listed = deriveIdentity({ msgType: 528, subType: 290 });
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expect(unlisted).toBeNull();
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expect(listed).not.toBeNull();
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expect(d.seenDuplicate(listed!)).toBe(false);
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});
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it('never dedups a manually supplied identity without a server discriminator or peer', () => {
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const d = new SysMsgDedup();
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expect(d.seenDuplicate(dedupIdentity({ sequence: 0 }))).toBe(false);
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expect(d.seenDuplicate(dedupIdentity({ sequence: 0 }))).toBe(false);
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expect(d.seenDuplicate(dedupIdentity({ random: 0 }))).toBe(false);
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expect(d.seenDuplicate(dedupIdentity({ peerUid: '' }))).toBe(false);
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});
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it('evicts the oldest key once capacity is exceeded (bounded memory)', () => {
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const d = new SysMsgDedup(2);
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expect(d.seenDuplicate(dedupIdentity({ sequence: 1, random: 1 }))).toBe(false);
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expect(d.seenDuplicate(dedupIdentity({ sequence: 2, random: 1 }))).toBe(false);
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expect(d.seenDuplicate(dedupIdentity({ sequence: 3, random: 1 }))).toBe(false);
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expect(d.seenDuplicate(dedupIdentity({ sequence: 1, random: 1 }))).toBe(false);
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expect(d.seenDuplicate(dedupIdentity({ sequence: 3, random: 1 }))).toBe(true);
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});
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});
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describe('parseMsgPush — system-push dedup (#137)', () => {
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it('drops the second identical official-robot member-increase push', () => {
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const dedup = new SysMsgDedup();
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const push = () => memberIncreasePush({ groupId: 700, memberUin: 2854207029, sequence: 800, msgId: 555 });
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const first = parseMsgPush(push(), identity, dedup);
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expect(first).toHaveLength(1);
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expect(first[0]).toMatchObject({ kind: 'group_member_join', groupId: 700, userUin: 2854207029 });
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const second = parseMsgPush(push(), identity, dedup);
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expect(second).toEqual([]);
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});
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it('keeps both pushes when no dedup tracker is supplied (forward re-parse path)', () => {
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const push = () => memberIncreasePush({ groupId: 700, memberUin: 2854207029, sequence: 800, msgId: 555 });
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expect(parseMsgPush(push(), identity)).toHaveLength(1);
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expect(parseMsgPush(push(), identity)).toHaveLength(1);
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});
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it('keeps distinct member-increase events (different members → different seq/msgId)', () => {
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const dedup = new SysMsgDedup();
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const a = parseMsgPush(memberIncreasePush({ groupId: 700, memberUin: 111, sequence: 800, msgId: 555 }), identity, dedup);
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const b = parseMsgPush(memberIncreasePush({ groupId: 700, memberUin: 222, sequence: 801, msgId: 556 }), identity, dedup);
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expect(a).toHaveLength(1);
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expect(b).toHaveLength(1);
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expect(b[0]).toMatchObject({ userUin: 222 });
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});
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it('[#266] dedups a listed C2C route before its outer type is decoded as a chat message', () => {
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const dedup = new SysMsgDedup();
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expect(parseMsgPush(c2cPacket(166, 133), identity, dedup)).toHaveLength(1);
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expect(parseMsgPush(c2cPacket(166, 133), identity, dedup)).toEqual([]);
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});
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it('[#266] records a listed undecoded route before a matching listed route is dispatched', () => {
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const dedup = new SysMsgDedup();
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expect(parseMsgPush(c2cPacket(167, 133), identity, dedup)).toEqual([]);
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expect(parseMsgPush(c2cPacket(166, 133), identity, dedup)).toEqual([]);
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});
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it('does not dedup ordinary chat messages outside the native system-message table', () => {
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const dedup = new SysMsgDedup();
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expect(parseMsgPush(c2cPacket(166, 0), identity, dedup)).toHaveLength(1);
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expect(parseMsgPush(c2cPacket(166, 0), identity, dedup)).toHaveLength(1);
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});
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it('does not dedup replacement state snapshots with the same server identity', () => {
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const dedup = new SysMsgDedup();
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expect(parseMsgPush(onlineDevicesPush('DESKTOP-A'), identity, dedup)).toMatchObject([
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{ kind: 'online_devices_changed', devices: [{ deviceName: 'DESKTOP-A' }] },
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]);
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expect(parseMsgPush(onlineDevicesPush('DESKTOP-B'), identity, dedup)).toMatchObject([
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{ kind: 'online_devices_changed', devices: [{ deviceName: 'DESKTOP-B' }] },
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]);
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});
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});
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