Files
WeFlow/electron/services/keyService.ts
cc 2e41a03c96 feat: 所有数据解析完全后台进行以解决页面未响应的问题;优化了头像渲染逻辑以提升渲染速度
fix: 修复了虚拟机上无法索引到wxkey的问题;修复图片密钥扫描的问题;修复年度报告错误;修复了年度报告和数据分析中的发送者错误问题;修复了部分页面偶发的未渲染名称问题;修复了头像偶发渲染失败的问题;修复了部分图片无法解密的问题
2026-01-14 22:43:42 +08:00

1059 lines
36 KiB
TypeScript
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import { app } from 'electron'
import { join, dirname, basename } from 'path'
import { existsSync, readdirSync, readFileSync, statSync, copyFileSync, mkdirSync } from 'fs'
import { execFile, spawn } from 'child_process'
import { promisify } from 'util'
import crypto from 'crypto'
import os from 'os'
const execFileAsync = promisify(execFile)
type DbKeyResult = { success: boolean; key?: string; error?: string; logs?: string[] }
type ImageKeyResult = { success: boolean; xorKey?: number; aesKey?: string; error?: string }
export class KeyService {
private koffi: any = null
private lib: any = null
private initialized = false
private initHook: any = null
private pollKeyData: any = null
private getStatusMessage: any = null
private cleanupHook: any = null
private getLastErrorMsg: any = null
// Win32 APIs
private kernel32: any = null
private user32: any = null
private advapi32: any = null
// Kernel32
private OpenProcess: any = null
private CloseHandle: any = null
private VirtualQueryEx: any = null
private ReadProcessMemory: any = null
private MEMORY_BASIC_INFORMATION: any = null
private TerminateProcess: any = null
// User32
private EnumWindows: any = null
private GetWindowTextW: any = null
private GetWindowTextLengthW: any = null
private GetClassNameW: any = null
private GetWindowThreadProcessId: any = null
private IsWindowVisible: any = null
private EnumChildWindows: any = null
private WNDENUMPROC_PTR: any = null
// Advapi32
private RegOpenKeyExW: any = null
private RegQueryValueExW: any = null
private RegCloseKey: any = null
// Constants
private readonly PROCESS_ALL_ACCESS = 0x1F0FFF
private readonly PROCESS_TERMINATE = 0x0001
private readonly KEY_READ = 0x20019
private readonly HKEY_LOCAL_MACHINE = 0x80000002
private readonly HKEY_CURRENT_USER = 0x80000001
private readonly ERROR_SUCCESS = 0
private getDllPath(): string {
const isPackaged = typeof app !== 'undefined' && app ? app.isPackaged : process.env.NODE_ENV === 'production'
// 候选路径列表
const candidates: string[] = []
// 1. 显式环境变量 (最高优先级)
if (process.env.WX_KEY_DLL_PATH) {
candidates.push(process.env.WX_KEY_DLL_PATH)
}
if (isPackaged) {
// 生产环境: 通常在 resources 目录下,但也可能直接在 resources 根目录
candidates.push(join(process.resourcesPath, 'resources', 'wx_key.dll'))
candidates.push(join(process.resourcesPath, 'wx_key.dll'))
} else {
// 开发环境
const cwd = process.cwd()
candidates.push(join(cwd, 'resources', 'wx_key.dll'))
candidates.push(join(app.getAppPath(), 'resources', 'wx_key.dll'))
}
// 检查并返回第一个存在的路径
for (const path of candidates) {
if (existsSync(path)) {
return path
}
}
// 如果都没找到,返回最可能的路径以便报错信息有参考
return candidates[0]
}
// 检查路径是否为 UNC 路径或网络路径
private isNetworkPath(path: string): boolean {
// UNC 路径以 \\ 开头
if (path.startsWith('\\\\')) {
return true
}
// 检查是否为网络映射驱动器简化检测A: 表示驱动器)
// 注意:这是一个启发式检测,更准确的方式需要调用 GetDriveType Windows API
// 但对于大多数 VM 共享场景UNC 路径检测已足够
return false
}
// 将 DLL 复制到本地临时目录
private localizeNetworkDll(originalPath: string): string {
try {
const tempDir = join(os.tmpdir(), 'weflow_dll_cache')
if (!existsSync(tempDir)) {
mkdirSync(tempDir, { recursive: true })
}
const localPath = join(tempDir, 'wx_key.dll')
// 检查是否已经有本地副本,如果有就使用它
if (existsSync(localPath)) {
console.log(`使用已存在的 DLL 本地副本: ${localPath}`)
return localPath
}
console.log(`检测到网络路径 DLL正在复制到本地: ${originalPath} -> ${localPath}`)
copyFileSync(originalPath, localPath)
console.log('DLL 本地化成功')
return localPath
} catch (e) {
console.error('DLL 本地化失败:', e)
// 如果本地化失败,返回原路径
return originalPath
}
}
private ensureLoaded(): boolean {
if (this.initialized) return true
let dllPath = ''
try {
this.koffi = require('koffi')
dllPath = this.getDllPath()
if (!existsSync(dllPath)) {
console.error(`wx_key.dll 不存在于路径: ${dllPath}`)
return false
}
// 检查是否为网络路径,如果是则本地化
if (this.isNetworkPath(dllPath)) {
console.log('检测到网络路径,将进行本地化处理')
dllPath = this.localizeNetworkDll(dllPath)
}
this.lib = this.koffi.load(dllPath)
this.initHook = this.lib.func('bool InitializeHook(uint32 targetPid)')
this.pollKeyData = this.lib.func('bool PollKeyData(_Out_ char *keyBuffer, int bufferSize)')
this.getStatusMessage = this.lib.func('bool GetStatusMessage(_Out_ char *msgBuffer, int bufferSize, _Out_ int *outLevel)')
this.cleanupHook = this.lib.func('bool CleanupHook()')
this.getLastErrorMsg = this.lib.func('const char* GetLastErrorMsg()')
this.initialized = true
return true
} catch (e) {
const errorMsg = e instanceof Error ? e.message : String(e)
const errorStack = e instanceof Error ? e.stack : ''
console.error(`加载 wx_key.dll 失败`)
console.error(` 路径: ${dllPath}`)
console.error(` 错误: ${errorMsg}`)
if (errorStack) {
console.error(` 堆栈: ${errorStack}`)
}
return false
}
}
private ensureWin32(): boolean {
return process.platform === 'win32'
}
private ensureKernel32(): boolean {
if (this.kernel32) return true
try {
this.koffi = require('koffi')
this.kernel32 = this.koffi.load('kernel32.dll')
const HANDLE = this.koffi.pointer('HANDLE', this.koffi.opaque())
this.MEMORY_BASIC_INFORMATION = this.koffi.struct('MEMORY_BASIC_INFORMATION', {
BaseAddress: 'uint64',
AllocationBase: 'uint64',
AllocationProtect: 'uint32',
RegionSize: 'uint64',
State: 'uint32',
Protect: 'uint32',
Type: 'uint32'
})
// Use explicit definitions to avoid parser issues
this.OpenProcess = this.kernel32.func('OpenProcess', 'HANDLE', ['uint32', 'bool', 'uint32'])
this.CloseHandle = this.kernel32.func('CloseHandle', 'bool', ['HANDLE'])
this.TerminateProcess = this.kernel32.func('TerminateProcess', 'bool', ['HANDLE', 'uint32'])
this.VirtualQueryEx = this.kernel32.func('VirtualQueryEx', 'uint64', ['HANDLE', 'uint64', this.koffi.out(this.koffi.pointer(this.MEMORY_BASIC_INFORMATION)), 'uint64'])
this.ReadProcessMemory = this.kernel32.func('ReadProcessMemory', 'bool', ['HANDLE', 'uint64', 'void*', 'uint64', this.koffi.out(this.koffi.pointer('uint64'))])
return true
} catch (e) {
console.error('初始化 kernel32 失败:', e)
return false
}
}
private decodeUtf8(buf: Buffer): string {
const nullIdx = buf.indexOf(0)
return buf.toString('utf8', 0, nullIdx > -1 ? nullIdx : undefined).trim()
}
private ensureUser32(): boolean {
if (this.user32) return true
try {
this.koffi = require('koffi')
this.user32 = this.koffi.load('user32.dll')
// Callbacks
// Define the prototype and its pointer type
const WNDENUMPROC = this.koffi.proto('bool __stdcall (void *hWnd, intptr_t lParam)')
this.WNDENUMPROC_PTR = this.koffi.pointer(WNDENUMPROC)
this.EnumWindows = this.user32.func('EnumWindows', 'bool', [this.WNDENUMPROC_PTR, 'intptr_t'])
this.EnumChildWindows = this.user32.func('EnumChildWindows', 'bool', ['void*', this.WNDENUMPROC_PTR, 'intptr_t'])
this.GetWindowTextW = this.user32.func('GetWindowTextW', 'int', ['void*', this.koffi.out('uint16*'), 'int'])
this.GetWindowTextLengthW = this.user32.func('GetWindowTextLengthW', 'int', ['void*'])
this.GetClassNameW = this.user32.func('GetClassNameW', 'int', ['void*', this.koffi.out('uint16*'), 'int'])
this.GetWindowThreadProcessId = this.user32.func('GetWindowThreadProcessId', 'uint32', ['void*', this.koffi.out('uint32*')])
this.IsWindowVisible = this.user32.func('IsWindowVisible', 'bool', ['void*'])
return true
} catch (e) {
console.error('初始化 user32 失败:', e)
return false
}
}
private ensureAdvapi32(): boolean {
if (this.advapi32) return true
try {
this.koffi = require('koffi')
this.advapi32 = this.koffi.load('advapi32.dll')
// Types
// Use intptr_t for HKEY to match system architecture (64-bit safe)
const HKEY = this.koffi.alias('HKEY', 'intptr_t')
const HKEY_PTR = this.koffi.pointer(HKEY)
this.RegOpenKeyExW = this.advapi32.func('RegOpenKeyExW', 'long', [HKEY, 'uint16*', 'uint32', 'uint32', this.koffi.out(HKEY_PTR)])
this.RegQueryValueExW = this.advapi32.func('RegQueryValueExW', 'long', [HKEY, 'uint16*', 'uint32*', this.koffi.out('uint32*'), this.koffi.out('uint8*'), this.koffi.out('uint32*')])
this.RegCloseKey = this.advapi32.func('RegCloseKey', 'long', [HKEY])
return true
} catch (e) {
console.error('初始化 advapi32 失败:', e)
return false
}
}
private decodeCString(ptr: any): string {
try {
if (typeof ptr === 'string') return ptr
return this.koffi.decode(ptr, 'char', -1)
} catch {
return ''
}
}
// --- WeChat Process & Path Finding ---
// Helper to read simple registry string
private readRegistryString(rootKey: number, subKey: string, valueName: string): string | null {
if (!this.ensureAdvapi32()) return null
// Convert strings to UTF-16 buffers
const subKeyBuf = Buffer.from(subKey + '\0', 'ucs2')
const valueNameBuf = valueName ? Buffer.from(valueName + '\0', 'ucs2') : null
const phkResult = Buffer.alloc(8) // Pointer size (64-bit safe)
if (this.RegOpenKeyExW(rootKey, subKeyBuf, 0, this.KEY_READ, phkResult) !== this.ERROR_SUCCESS) {
return null
}
const hKey = this.koffi.decode(phkResult, 'uintptr_t')
try {
const lpcbData = Buffer.alloc(4)
lpcbData.writeUInt32LE(0, 0) // First call to get size? No, RegQueryValueExW expects initialized size or null to get size.
// Usually we call it twice or just provide a big buffer.
// Let's call twice.
let ret = this.RegQueryValueExW(hKey, valueNameBuf, null, null, null, lpcbData)
if (ret !== this.ERROR_SUCCESS) return null
const size = lpcbData.readUInt32LE(0)
if (size === 0) return null
const dataBuf = Buffer.alloc(size)
ret = this.RegQueryValueExW(hKey, valueNameBuf, null, null, dataBuf, lpcbData)
if (ret !== this.ERROR_SUCCESS) return null
// Read UTF-16 string (remove null terminator)
let str = dataBuf.toString('ucs2')
if (str.endsWith('\0')) str = str.slice(0, -1)
return str
} finally {
this.RegCloseKey(hKey)
}
}
private async findWeChatInstallPath(): Promise<string | null> {
// 1. Registry - Uninstall Keys
const uninstallKeys = [
'SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall',
'SOFTWARE\\WOW6432Node\\Microsoft\\Windows\\CurrentVersion\\Uninstall'
]
const roots = [this.HKEY_LOCAL_MACHINE, this.HKEY_CURRENT_USER]
// NOTE: Scanning subkeys in registry via Koffi is tedious (RegEnumKeyEx).
// Simplified strategy: Check common known registry keys first, then fallback to common paths.
// wx_key searches *all* subkeys of Uninstall, which is robust but complex to port quickly.
// Let's rely on specific Tencent keys first.
// 2. Tencent specific keys
const tencentKeys = [
'Software\\Tencent\\WeChat',
'Software\\WOW6432Node\\Tencent\\WeChat',
'Software\\Tencent\\Weixin',
]
for (const root of roots) {
for (const key of tencentKeys) {
const path = this.readRegistryString(root, key, 'InstallPath')
if (path && existsSync(join(path, 'Weixin.exe'))) return join(path, 'Weixin.exe')
if (path && existsSync(join(path, 'WeChat.exe'))) return join(path, 'WeChat.exe')
}
}
// 3. Uninstall key exact match (sometimes works)
for (const root of roots) {
for (const parent of uninstallKeys) {
// Try WeChat specific subkey
const path = this.readRegistryString(root, parent + '\\WeChat', 'InstallLocation')
if (path && existsSync(join(path, 'Weixin.exe'))) return join(path, 'Weixin.exe')
}
}
// 4. Common Paths
const drives = ['C', 'D', 'E', 'F']
const commonPaths = [
'Program Files\\Tencent\\WeChat\\WeChat.exe',
'Program Files (x86)\\Tencent\\WeChat\\WeChat.exe',
'Program Files\\Tencent\\Weixin\\Weixin.exe',
'Program Files (x86)\\Tencent\\Weixin\\Weixin.exe'
]
for (const drive of drives) {
for (const p of commonPaths) {
const full = join(drive + ':\\', p)
if (existsSync(full)) return full
}
}
return null
}
private async findPidByImageName(imageName: string): Promise<number | null> {
try {
const { stdout } = await execFileAsync('tasklist', ['/FI', `IMAGENAME eq ${imageName}`, '/FO', 'CSV', '/NH'])
const lines = stdout.split(/\r?\n/).map((line) => line.trim()).filter(Boolean)
for (const line of lines) {
if (line.startsWith('INFO:')) continue
const parts = line.split('","').map((p) => p.replace(/^"|"$/g, ''))
if (parts[0]?.toLowerCase() === imageName.toLowerCase()) {
const pid = Number(parts[1])
if (!Number.isNaN(pid)) return pid
}
}
return null
} catch (e) {
console.error(`获取进程失败 (${imageName}):`, e)
return null
}
}
private async findWeChatPid(): Promise<number | null> {
const names = ['Weixin.exe', 'WeChat.exe']
for (const name of names) {
const pid = await this.findPidByImageName(name)
if (pid) return pid
}
const fallbackPid = await this.waitForWeChatWindow(5000)
return fallbackPid ?? null
}
private async killWeChatProcesses() {
try {
await execFileAsync('taskkill', ['/F', '/IM', 'Weixin.exe'])
await execFileAsync('taskkill', ['/F', '/IM', 'WeChat.exe'])
} catch (e) {
// Ignore if not found
}
await new Promise(r => setTimeout(r, 1000))
}
// --- Window Detection ---
private getWindowTitle(hWnd: any): string {
const len = this.GetWindowTextLengthW(hWnd)
if (len === 0) return ''
const buf = Buffer.alloc((len + 1) * 2)
this.GetWindowTextW(hWnd, buf, len + 1)
return buf.toString('ucs2', 0, len * 2)
}
private getClassName(hWnd: any): string {
const buf = Buffer.alloc(512)
const len = this.GetClassNameW(hWnd, buf, 256)
return buf.toString('ucs2', 0, len * 2)
}
private isWeChatWindowTitle(title: string): boolean {
const normalized = title.trim()
if (!normalized) return false
const lower = normalized.toLowerCase()
return normalized === '微信' || lower === 'wechat' || lower === 'weixin'
}
private async waitForWeChatWindow(timeoutMs = 25000): Promise<number | null> {
if (!this.ensureUser32()) return null
const startTime = Date.now()
while (Date.now() - startTime < timeoutMs) {
let foundPid: number | null = null
const enumWindowsCallback = this.koffi.register((hWnd: any, lParam: any) => {
if (!this.IsWindowVisible(hWnd)) return true
const title = this.getWindowTitle(hWnd)
if (!this.isWeChatWindowTitle(title)) return true
const pidBuf = Buffer.alloc(4)
this.GetWindowThreadProcessId(hWnd, pidBuf)
const pid = pidBuf.readUInt32LE(0)
if (pid) {
foundPid = pid
return false
}
return true
}, this.WNDENUMPROC_PTR)
this.EnumWindows(enumWindowsCallback, 0)
this.koffi.unregister(enumWindowsCallback)
if (foundPid) return foundPid
await new Promise(r => setTimeout(r, 500))
}
return null
}
private collectChildWindowInfos(parent: any): Array<{ title: string; className: string }> {
const children: Array<{ title: string; className: string }> = []
const enumChildCallback = this.koffi.register((hChild: any, lp: any) => {
const title = this.getWindowTitle(hChild).trim()
const className = this.getClassName(hChild).trim()
children.push({ title, className })
return true
}, this.WNDENUMPROC_PTR)
this.EnumChildWindows(parent, enumChildCallback, 0)
this.koffi.unregister(enumChildCallback)
return children
}
private hasReadyComponents(children: Array<{ title: string; className: string }>): boolean {
if (children.length === 0) return false
const readyTexts = ['聊天', '登录', '账号']
const readyClassMarkers = ['WeChat', 'Weixin', 'TXGuiFoundation', 'Qt5', 'ChatList', 'MainWnd', 'BrowserWnd', 'ListView']
const readyChildCountThreshold = 14
let classMatchCount = 0
let titleMatchCount = 0
let hasValidClassName = false
for (const child of children) {
const normalizedTitle = child.title.replace(/\s+/g, '')
if (normalizedTitle) {
if (readyTexts.some(marker => normalizedTitle.includes(marker))) {
return true
}
titleMatchCount += 1
}
const className = child.className
if (className) {
if (readyClassMarkers.some(marker => className.includes(marker))) {
return true
}
if (className.length > 5) {
classMatchCount += 1
hasValidClassName = true
}
}
}
if (classMatchCount >= 3 || titleMatchCount >= 2) return true
if (children.length >= readyChildCountThreshold) return true
if (hasValidClassName && children.length >= 5) return true
return false
}
private async waitForWeChatWindowComponents(pid: number, timeoutMs = 15000): Promise<boolean> {
if (!this.ensureUser32()) return true
const startTime = Date.now()
while (Date.now() - startTime < timeoutMs) {
let ready = false
const enumWindowsCallback = this.koffi.register((hWnd: any, lParam: any) => {
if (!this.IsWindowVisible(hWnd)) return true
const title = this.getWindowTitle(hWnd)
if (!this.isWeChatWindowTitle(title)) return true
const pidBuf = Buffer.alloc(4)
this.GetWindowThreadProcessId(hWnd, pidBuf)
const windowPid = pidBuf.readUInt32LE(0)
if (windowPid !== pid) return true
const children = this.collectChildWindowInfos(hWnd)
if (this.hasReadyComponents(children)) {
ready = true
return false
}
return true
}, this.WNDENUMPROC_PTR)
this.EnumWindows(enumWindowsCallback, 0)
this.koffi.unregister(enumWindowsCallback)
if (ready) return true
await new Promise(r => setTimeout(r, 500))
}
return true
}
// --- Main Methods ---
async autoGetDbKey(
timeoutMs = 60_000,
onStatus?: (message: string, level: number) => void
): Promise<DbKeyResult> {
if (!this.ensureWin32()) return { success: false, error: '仅支持 Windows' }
if (!this.ensureLoaded()) return { success: false, error: 'wx_key.dll 未加载' }
if (!this.ensureKernel32()) return { success: false, error: 'Kernel32 Init Failed' }
const logs: string[] = []
// 1. Find Path
onStatus?.('正在定位微信安装路径...', 0)
let wechatPath = await this.findWeChatInstallPath()
if (!wechatPath) {
const err = '未找到微信安装路径请确认已安装PC微信'
onStatus?.(err, 2)
return { success: false, error: err }
}
// 2. Restart WeChat
onStatus?.('正在重启微信以进行获取...', 0)
await this.killWeChatProcesses()
// 3. Launch
onStatus?.('正在启动微信...', 0)
const sub = spawn(wechatPath, { detached: true, stdio: 'ignore' })
sub.unref()
// 4. Wait for Window & Get PID (Crucial change: discover PID from window)
onStatus?.('等待微信界面就绪...', 0)
const pid = await this.waitForWeChatWindow()
if (!pid) {
return { success: false, error: '启动微信失败或等待界面就绪超时' }
}
onStatus?.(`检测到微信窗口 (PID: ${pid}),正在获取...`, 0)
onStatus?.('正在检测微信界面组件...', 0)
await this.waitForWeChatWindowComponents(pid, 15000)
// 5. Inject
const ok = this.initHook(pid)
if (!ok) {
const error = this.getLastErrorMsg ? this.decodeCString(this.getLastErrorMsg()) : ''
if (error) {
return { success: false, error }
}
const statusBuffer = Buffer.alloc(256)
const levelOut = [0]
const status = this.getStatusMessage && this.getStatusMessage(statusBuffer, statusBuffer.length, levelOut)
? this.decodeUtf8(statusBuffer)
: ''
return { success: false, error: status || '初始化失败' }
}
const keyBuffer = Buffer.alloc(128)
const start = Date.now()
try {
while (Date.now() - start < timeoutMs) {
if (this.pollKeyData(keyBuffer, keyBuffer.length)) {
const key = this.decodeUtf8(keyBuffer)
if (key.length === 64) {
onStatus?.('密钥获取成功', 1)
return { success: true, key, logs }
}
}
for (let i = 0; i < 5; i++) {
const statusBuffer = Buffer.alloc(256)
const levelOut = [0]
if (!this.getStatusMessage(statusBuffer, statusBuffer.length, levelOut)) {
break
}
const msg = this.decodeUtf8(statusBuffer)
const level = levelOut[0] ?? 0
if (msg) {
logs.push(msg)
onStatus?.(msg, level)
}
}
await new Promise((resolve) => setTimeout(resolve, 120))
}
} finally {
try {
this.cleanupHook()
} catch { }
}
return { success: false, error: '获取密钥超时', logs }
}
// --- Image Key Stuff (Legacy but kept) ---
private isAccountDir(dirPath: string): boolean {
return (
existsSync(join(dirPath, 'db_storage')) ||
existsSync(join(dirPath, 'FileStorage', 'Image')) ||
existsSync(join(dirPath, 'FileStorage', 'Image2'))
)
}
private isPotentialAccountName(name: string): boolean {
const lower = name.toLowerCase()
if (lower.startsWith('all') || lower.startsWith('applet') || lower.startsWith('backup') || lower.startsWith('wmpf')) {
return false
}
if (lower.startsWith('wxid_')) return true
if (/^\d+$/.test(name) && name.length >= 6) return true
return name.length > 5
}
private listAccountDirs(rootDir: string): string[] {
try {
const entries = readdirSync(rootDir)
const high: string[] = []
const low: string[] = []
for (const entry of entries) {
const fullPath = join(rootDir, entry)
try {
if (!statSync(fullPath).isDirectory()) continue
} catch {
continue
}
if (!this.isPotentialAccountName(entry)) {
continue
}
if (this.isAccountDir(fullPath)) {
high.push(fullPath)
} else {
low.push(fullPath)
}
}
return high.length ? high.sort() : low.sort()
} catch {
return []
}
}
private normalizeExistingDir(inputPath: string): string | null {
const trimmed = inputPath.replace(/[\\\\/]+$/, '')
if (!existsSync(trimmed)) return null
try {
const stats = statSync(trimmed)
if (stats.isFile()) {
return dirname(trimmed)
}
} catch {
return null
}
return trimmed
}
private resolveAccountDirFromPath(inputPath: string): string | null {
const normalized = this.normalizeExistingDir(inputPath)
if (!normalized) return null
if (this.isAccountDir(normalized)) return normalized
const lower = normalized.toLowerCase()
if (lower.endsWith('db_storage') || lower.endsWith('filestorage') || lower.endsWith('image') || lower.endsWith('image2')) {
const parent = dirname(normalized)
if (this.isAccountDir(parent)) return parent
const grandParent = dirname(parent)
if (this.isAccountDir(grandParent)) return grandParent
}
const candidates = this.listAccountDirs(normalized)
if (candidates.length) return candidates[0]
return null
}
private resolveAccountDir(manualDir?: string): string | null {
if (manualDir) {
const resolved = this.resolveAccountDirFromPath(manualDir)
if (resolved) return resolved
}
const userProfile = process.env.USERPROFILE
if (!userProfile) return null
const roots = [
join(userProfile, 'Documents', 'xwechat_files'),
join(userProfile, 'Documents', 'WeChat Files')
]
for (const root of roots) {
if (!existsSync(root)) continue
const candidates = this.listAccountDirs(root)
if (candidates.length) return candidates[0]
}
return null
}
private findTemplateDatFiles(rootDir: string): string[] {
const files: string[] = []
const stack = [rootDir]
const maxFiles = 32
while (stack.length && files.length < maxFiles) {
const dir = stack.pop() as string
let entries: string[]
try {
entries = readdirSync(dir)
} catch {
continue
}
for (const entry of entries) {
const fullPath = join(dir, entry)
let stats: any
try {
stats = statSync(fullPath)
} catch {
continue
}
if (stats.isDirectory()) {
stack.push(fullPath)
} else if (entry.endsWith('_t.dat')) {
files.push(fullPath)
if (files.length >= maxFiles) break
}
}
}
if (!files.length) return []
const dateReg = /(\d{4}-\d{2})/
files.sort((a, b) => {
const ma = a.match(dateReg)?.[1]
const mb = b.match(dateReg)?.[1]
if (ma && mb) return mb.localeCompare(ma)
return 0
})
return files.slice(0, 16)
}
private getXorKey(templateFiles: string[]): number | null {
const counts = new Map<number, number>()
const tailSignatures = [
Buffer.from([0xFF, 0xD9]),
Buffer.from([0x49, 0x45, 0x4E, 0x44, 0xAE, 0x42, 0x60, 0x82])
]
for (const file of templateFiles) {
try {
const bytes = readFileSync(file)
for (const signature of tailSignatures) {
if (bytes.length < signature.length) continue
const tail = bytes.subarray(bytes.length - signature.length)
const xorKey = tail[0] ^ signature[0]
let valid = true
for (let i = 1; i < signature.length; i++) {
if ((tail[i] ^ xorKey) !== signature[i]) {
valid = false
break
}
}
if (valid) {
counts.set(xorKey, (counts.get(xorKey) ?? 0) + 1)
}
}
} catch { }
}
if (!counts.size) return null
let bestKey: number | null = null
let bestCount = 0
for (const [key, count] of counts) {
if (count > bestCount) {
bestCount = count
bestKey = key
}
}
return bestKey
}
private getCiphertextFromTemplate(templateFiles: string[]): Buffer | null {
for (const file of templateFiles) {
try {
const bytes = readFileSync(file)
if (bytes.length < 0x1f) continue
if (
bytes[0] === 0x07 &&
bytes[1] === 0x08 &&
bytes[2] === 0x56 &&
bytes[3] === 0x32 &&
bytes[4] === 0x08 &&
bytes[5] === 0x07
) {
return bytes.subarray(0x0f, 0x1f)
}
} catch { }
}
return null
}
private isAlphaNumAscii(byte: number): boolean {
return (byte >= 0x61 && byte <= 0x7a) || (byte >= 0x41 && byte <= 0x5a) || (byte >= 0x30 && byte <= 0x39)
}
private isUtf16AsciiKey(buf: Buffer, start: number): boolean {
if (start + 64 > buf.length) return false
for (let j = 0; j < 32; j++) {
const charByte = buf[start + j * 2]
const nullByte = buf[start + j * 2 + 1]
if (nullByte !== 0x00 || !this.isAlphaNumAscii(charByte)) {
return false
}
}
return true
}
private verifyKey(ciphertext: Buffer, keyBytes: Buffer): boolean {
try {
const key = keyBytes.subarray(0, 16)
const decipher = crypto.createDecipheriv('aes-128-ecb', key, null)
decipher.setAutoPadding(false)
const decrypted = Buffer.concat([decipher.update(ciphertext), decipher.final()])
const isJpeg = decrypted.length >= 3 && decrypted[0] === 0xff && decrypted[1] === 0xd8 && decrypted[2] === 0xff
const isPng = decrypted.length >= 8 &&
decrypted[0] === 0x89 &&
decrypted[1] === 0x50 &&
decrypted[2] === 0x4e &&
decrypted[3] === 0x47 &&
decrypted[4] === 0x0d &&
decrypted[5] === 0x0a &&
decrypted[6] === 0x1a &&
decrypted[7] === 0x0a
return isJpeg || isPng
} catch {
return false
}
}
private getMemoryRegions(hProcess: any): Array<[number, number]> {
const regions: Array<[number, number]> = []
const MEM_COMMIT = 0x1000
const MEM_PRIVATE = 0x20000
const MEM_MAPPED = 0x40000
const MEM_IMAGE = 0x1000000
const PAGE_NOACCESS = 0x01
const PAGE_GUARD = 0x100
let address = 0
const maxAddress = 0x7fffffffffff
while (address >= 0 && address < maxAddress) {
const info: any = {}
const result = this.VirtualQueryEx(hProcess, address, info, this.koffi.sizeof(this.MEMORY_BASIC_INFORMATION))
if (!result) break
const state = info.State
const protect = info.Protect
const type = info.Type
const regionSize = Number(info.RegionSize)
if (state === MEM_COMMIT && (protect & PAGE_NOACCESS) === 0 && (protect & PAGE_GUARD) === 0) {
if (type === MEM_PRIVATE || type === MEM_MAPPED || type === MEM_IMAGE) {
regions.push([Number(info.BaseAddress), regionSize])
}
}
const nextAddress = address + regionSize
if (nextAddress <= address) break
address = nextAddress
}
return regions
}
private readProcessMemory(hProcess: any, address: number, size: number): Buffer | null {
const buffer = Buffer.alloc(size)
const bytesRead = [0]
const ok = this.ReadProcessMemory(hProcess, address, buffer, size, bytesRead)
if (!ok || bytesRead[0] === 0) return null
return buffer.subarray(0, bytesRead[0])
}
private async getAesKeyFromMemory(
pid: number,
ciphertext: Buffer,
onProgress?: (current: number, total: number, message: string) => void
): Promise<string | null> {
if (!this.ensureKernel32()) return null
const hProcess = this.OpenProcess(this.PROCESS_ALL_ACCESS, false, pid)
if (!hProcess) return null
try {
const allRegions = this.getMemoryRegions(hProcess)
// 优化1: 只保留小内存区域(< 10MB- 密钥通常在小区域,可大幅减少扫描时间
const filteredRegions = allRegions.filter(([_, size]) => size <= 10 * 1024 * 1024)
// 优化2: 优先级排序 - 按大小升序,先扫描小区域(密钥通常在较小区域)
const sortedRegions = filteredRegions.sort((a, b) => a[1] - b[1])
// 优化3: 计算总字节数用于精确进度报告
const totalBytes = sortedRegions.reduce((sum, [_, size]) => sum + size, 0)
let processedBytes = 0
// 优化4: 减小分块大小到 1MB参考 wx_key 项目)
const chunkSize = 1 * 1024 * 1024
const overlap = 65
let currentRegion = 0
for (const [baseAddress, regionSize] of sortedRegions) {
currentRegion++
const progress = totalBytes > 0 ? Math.floor((processedBytes / totalBytes) * 100) : 0
onProgress?.(progress, 100, `扫描内存 ${progress}% (${currentRegion}/${sortedRegions.length})`)
// 每个区域都让出主线程确保UI流畅
await new Promise(resolve => setImmediate(resolve))
let offset = 0
let trailing: Buffer | null = null
while (offset < regionSize) {
const remaining = regionSize - offset
const currentChunkSize = remaining > chunkSize ? chunkSize : remaining
const chunk = this.readProcessMemory(hProcess, baseAddress + offset, currentChunkSize)
if (!chunk || !chunk.length) {
offset += currentChunkSize
trailing = null
continue
}
let dataToScan: Buffer
if (trailing && trailing.length) {
dataToScan = Buffer.concat([trailing, chunk])
} else {
dataToScan = chunk
}
for (let i = 0; i < dataToScan.length - 34; i++) {
if (this.isAlphaNumAscii(dataToScan[i])) continue
let valid = true
for (let j = 1; j <= 32; j++) {
if (!this.isAlphaNumAscii(dataToScan[i + j])) {
valid = false
break
}
}
if (valid && this.isAlphaNumAscii(dataToScan[i + 33])) {
valid = false
}
if (valid) {
const keyBytes = dataToScan.subarray(i + 1, i + 33)
if (this.verifyKey(ciphertext, keyBytes)) {
return keyBytes.toString('ascii')
}
}
}
for (let i = 0; i < dataToScan.length - 65; i++) {
if (!this.isUtf16AsciiKey(dataToScan, i)) continue
const keyBytes = Buffer.alloc(32)
for (let j = 0; j < 32; j++) {
keyBytes[j] = dataToScan[i + j * 2]
}
if (this.verifyKey(ciphertext, keyBytes)) {
return keyBytes.toString('ascii')
}
}
const start = dataToScan.length - overlap
trailing = dataToScan.subarray(start < 0 ? 0 : start)
offset += currentChunkSize
}
// 更新已处理字节数
processedBytes += regionSize
}
return null
} finally {
try {
this.CloseHandle(hProcess)
} catch { }
}
}
async autoGetImageKey(
manualDir?: string,
onProgress?: (message: string) => void
): Promise<ImageKeyResult> {
if (!this.ensureWin32()) return { success: false, error: '仅支持 Windows' }
if (!this.ensureLoaded()) return { success: false, error: 'wx_key.dll 未加载' }
if (!this.ensureKernel32()) return { success: false, error: '初始化系统 API 失败' }
onProgress?.('正在定位微信账号目录...')
const accountDir = this.resolveAccountDir(manualDir)
if (!accountDir) return { success: false, error: '未找到微信账号目录' }
onProgress?.('正在收集模板文件...')
const templateFiles = this.findTemplateDatFiles(accountDir)
if (!templateFiles.length) return { success: false, error: '未找到模板文件' }
onProgress?.('正在计算 XOR 密钥...')
const xorKey = this.getXorKey(templateFiles)
if (xorKey == null) return { success: false, error: '无法计算 XOR 密钥' }
onProgress?.('正在读取加密模板数据...')
const ciphertext = this.getCiphertextFromTemplate(templateFiles)
if (!ciphertext) return { success: false, error: '无法读取加密模板数据' }
const pid = await this.findWeChatPid()
if (!pid) return { success: false, error: '未检测到微信进程' }
onProgress?.('正在扫描内存获取 AES 密钥...')
const aesKey = await this.getAesKeyFromMemory(pid, ciphertext, (current, total, msg) => {
onProgress?.(`${msg} (${current}/${total})`)
})
if (!aesKey) {
return {
success: false,
error: '未能从内存中获取 AES 密钥,请打开朋友圈图片后重试'
}
}
return { success: true, xorKey, aesKey: aesKey.slice(0, 16) }
}
}