恢复了原有的视频解密逻辑

electron/main.ts

@@ -852,9 +852,9 @@ function registerIpcHandlers() {
   })
 
   // 视频相关
-  ipcMain.handle('video:getVideoInfo', async (_, videoMd5: string, sessionId?: string) => {
+  ipcMain.handle('video:getVideoInfo', async (_, videoMd5: string) => {
     try {
-      const result = await videoService.getVideoInfo(videoMd5, sessionId)
+      const result = await videoService.getVideoInfo(videoMd5)
       return { success: true, ...result }
     } catch (e) {
       return { success: false, error: String(e), exists: false }

electron/preload.ts

@@ -194,12 +194,11 @@ contextBridge.exposeInMainWorld('electronAPI', {
     }
   },
 
-  // 视频
-  video: {
-    getVideoInfo: (videoMd5: string, sessionId?: string) => ipcRenderer.invoke('video:getVideoInfo', videoMd5, sessionId),
-    parseVideoMd5: (content: string) => ipcRenderer.invoke('video:parseVideoMd5', content)
-  },
-
+    // 视频
+    video: {
+      getVideoInfo: (videoMd5: string) => ipcRenderer.invoke('video:getVideoInfo', videoMd5),
+      parseVideoMd5: (content: string) => ipcRenderer.invoke('video:parseVideoMd5', content)
+    },
   // 数据分析
   analytics: {
     getOverallStatistics: (force?: boolean) => ipcRenderer.invoke('analytics:getOverallStatistics', force),

electron/services/videoService.ts

@@ -1,13 +1,11 @@
-import { join, basename, extname, dirname } from 'path'
-import { existsSync, readdirSync, statSync, readFileSync, appendFileSync, mkdirSync, writeFileSync } from 'fs'
-import { app } from 'electron'
+import { join } from 'path'
+import { existsSync, readdirSync, statSync, readFileSync } from 'fs'
 import { ConfigService } from './config'
 import Database from 'better-sqlite3'
 import { wcdbService } from './wcdbService'
-import crypto from 'crypto'
 
 export interface VideoInfo {
-    videoUrl?: string       // 视频文件路径
+    videoUrl?: string       // 视频文件路径（用于 readFile）
     coverUrl?: string       // 封面 data URL
     thumbUrl?: string       // 缩略图 data URL
     exists: boolean
@@ -15,379 +13,276 @@ export interface VideoInfo {
 
 class VideoService {
     private configService: ConfigService
-    private resolvedCache = new Map<string, string>() // md5 -> localPath
 
     constructor() {
         this.configService = new ConfigService()
     }
 
-    private logInfo(message: string, meta?: Record<string, unknown>): void {
-        if (!this.configService.get('logEnabled')) return
-        const timestamp = new Date().toISOString()
-        const metaStr = meta ? ` ${JSON.stringify(meta)}` : ''
-        const logLine = `[${timestamp}] [VideoService] ${message}${metaStr}\n`
-        this.writeLog(logLine)
-    }
-
-    private logError(message: string, error?: unknown, meta?: Record<string, unknown>): void {
-        if (!this.configService.get('logEnabled')) return
-        const timestamp = new Date().toISOString()
-        const errorStr = error ? ` Error: ${String(error)}` : ''
-        const metaStr = meta ? ` ${JSON.stringify(meta)}` : ''
-        const logLine = `[${timestamp}] [VideoService] ERROR: ${message}${errorStr}${metaStr}\n`
-        console.error(`[VideoService] ${message}`, error, meta)
-        this.writeLog(logLine)
-    }
-
-    private writeLog(line: string): void {
-        try {
-            const logDir = join(app.getPath('userData'), 'logs')
-            if (!existsSync(logDir)) {
-                mkdirSync(logDir, { recursive: true })
-            }
-            appendFileSync(join(logDir, 'wcdb.log'), line, { encoding: 'utf8' })
-        } catch (err) {
-            console.error('写入日志失败:', err)
-        }
-    }
-
+    /**
+     * 获取数据库根目录
+     */
     private getDbPath(): string {
         return this.configService.get('dbPath') || ''
     }
 
+    /**
+     * 获取当前用户的wxid
+     */
     private getMyWxid(): string {
         return this.configService.get('myWxid') || ''
     }
 
-    private getCacheBasePath(): string {
-        return this.configService.getCacheBasePath()
-    }
-
-    private cleanWxid(wxid: string): string {
-        const trimmed = wxid.trim()
-        if (!trimmed) return trimmed
-        if (trimmed.toLowerCase().startsWith('wxid_')) {
-            const match = trimmed.match(/^(wxid_[^_]+)/i)
-            if (match) return match[1]
-        }
-        const suffixMatch = trimmed.match(/^(.+)_([a-zA-Z0-9]{4})$/)
-        if (suffixMatch) return suffixMatch[1]
-        return trimmed
-    }
-
-    private resolveAccountDir(dbPath: string, wxid: string): string | null {
-        if (!dbPath || !wxid) return null
-        const cleanedWxid = this.cleanWxid(wxid).toLowerCase()
-        const normalized = dbPath.replace(/[\\/]+$/, '')
-        const candidates: { path: string; mtime: number }[] = []
-
-        const checkDir = (p: string) => {
-            if (existsSync(p) && (existsSync(join(p, 'db_storage')) || existsSync(join(p, 'msg', 'video')) || existsSync(join(p, 'msg', 'attach')))) {
-                candidates.push({ path: p, mtime: this.getDirMtime(p) })
-            }
-        }
-
-        checkDir(join(normalized, wxid))
-        checkDir(join(normalized, cleanedWxid))
-        checkDir(normalized)
-
-        try {
-            if (existsSync(normalized) && statSync(normalized).isDirectory()) {
-                const entries = readdirSync(normalized)
-                for (const entry of entries) {
-                    const entryPath = join(normalized, entry)
-                    try {
-                        if (!statSync(entryPath).isDirectory()) continue
-                    } catch { continue }
-                    const lowerEntry = entry.toLowerCase()
-                    if (lowerEntry === cleanedWxid || lowerEntry.startsWith(`${cleanedWxid}_`)) {
-                        checkDir(entryPath)
-                    }
-                }
-            }
-        } catch { }
-
-        if (candidates.length === 0) return null
-        candidates.sort((a, b) => b.mtime - a.mtime)
-        return candidates[0].path
-    }
-
-    private getDirMtime(dirPath: string): number {
-        try {
-            let mtime = statSync(dirPath).mtimeMs
-            const subs = ['db_storage', 'msg/video', 'msg/attach']
-            for (const sub of subs) {
-                const p = join(dirPath, sub)
-                if (existsSync(p)) mtime = Math.max(mtime, statSync(p).mtimeMs)
-            }
-            return mtime
-        } catch { return 0 }
-    }
-
-    private async ensureWcdbReady(): Promise<boolean> {
-        if (wcdbService.isReady()) return true
-        const dbPath = this.configService.get('dbPath')
-        const decryptKey = this.configService.get('decryptKey')
-        const wxid = this.configService.get('myWxid')
-        if (!dbPath || !decryptKey || !wxid) return false
-        const cleanedWxid = this.cleanWxid(wxid)
-        return await wcdbService.open(dbPath, decryptKey, cleanedWxid)
+    /**
+     * 获取缓存目录（解密后的数据库存放位置）
+     */
+    private getCachePath(): string {
+        return this.configService.get('cachePath') || ''
     }
 
     /**
-     * 计算会话哈希（对应磁盘目录名）
+     * 清理 wxid 目录名（去掉后缀）
      */
-    private md5Hash(text: string): string {
-        return crypto.createHash('md5').update(text).digest('hex')
-    }
+    private cleanWxid(wxid: string): string {
+        const trimmed = wxid.trim()
+        if (!trimmed) return trimmed
 
-    private async resolveHardlinkPath(accountDir: string, md5: string): Promise<string | null> {
-        const dbPath = join(accountDir, 'db_storage', 'hardlink', 'hardlink.db')
-        if (!existsSync(dbPath)) {
-            this.logInfo('hardlink.db 不存在', { dbPath })
-            return null
+        if (trimmed.toLowerCase().startsWith('wxid_')) {
+            const match = trimmed.match(/^(wxid_[^_]+)/i)
+            if (match) return match[1]
+            return trimmed
         }
 
-        try {
-            const ready = await this.ensureWcdbReady()
-            if (!ready) return null
+        const suffixMatch = trimmed.match(/^(.+)_([a-zA-Z0-9]{4})$/)
+        if (suffixMatch) return suffixMatch[1]
 
-            const tableResult = await wcdbService.execQuery('media', dbPath, 
-                "SELECT name FROM sqlite_master WHERE type='table' AND name LIKE 'video_hardlink_info%' ORDER BY name DESC LIMIT 1")
+        return trimmed
+    }
 
-            if (!tableResult.success || !tableResult.rows?.length) return null
-            const tableName = tableResult.rows[0].name
+    /**
+     * 从 video_hardlink_info_v4 表查询视频文件名
+     * 优先使用 cachePath 中解密后的 hardlink.db（使用 better-sqlite3）
+     * 如果失败，则尝试使用 wcdbService.execQuery 查询加密的 hardlink.db
+     */
+    private async queryVideoFileName(md5: string): Promise<string | undefined> {
+        const cachePath = this.getCachePath()
+        const dbPath = this.getDbPath()
+        const wxid = this.getMyWxid()
+        const cleanedWxid = this.cleanWxid(wxid)
 
-            const escapedMd5 = md5.replace(/'/g, "''")
-            const rowResult = await wcdbService.execQuery('media', dbPath, 
-                `SELECT dir1, dir2, file_name FROM ${tableName} WHERE lower(md5) = lower('${escapedMd5}') LIMIT 1`)
+        console.log('[VideoService] queryVideoFileName called with MD5:', md5)
+        console.log('[VideoService] cachePath:', cachePath, 'dbPath:', dbPath, 'wxid:', wxid, 'cleanedWxid:', cleanedWxid)
 
-            if (!rowResult.success || !rowResult.rows?.length) return null
+        if (!wxid) return undefined
 
-            const row = rowResult.rows[0]
-            const dir1 = row.dir1 ?? row.DIR1
-            const dir2 = row.dir2 ?? row.DIR2
-            const file_name = row.file_name ?? row.fileName ?? row.FILE_NAME
-
-            if (dir1 === undefined || dir2 === undefined || !file_name) return null
-
-            const dirTableResult = await wcdbService.execQuery('media', dbPath, 
-                "SELECT name FROM sqlite_master WHERE type='table' AND name LIKE 'dir2id%' LIMIT 1")
-            if (!dirTableResult.success || !dirTableResult.rows?.length) return null
-            const dirTable = dirTableResult.rows[0].name
-
-            const getDirName = async (id: number) => {
-                const res = await wcdbService.execQuery('media', dbPath, `SELECT username FROM ${dirTable} WHERE rowid = ${id} LIMIT 1`)
-                return res.success && res.rows?.length ? String(res.rows[0].username) : null
-            }
-
-            const dir1Name = await getDirName(Number(dir1))
-            const dir2Name = await getDirName(Number(dir2))
-            if (!dir1Name || !dir2Name) return null
-
-            const candidates = [
-                join(accountDir, 'msg', 'attach', dir1Name, dir2Name, 'Video', file_name),
-                join(accountDir, 'msg', 'attach', dir1Name, dir2Name, file_name),
-                join(accountDir, 'msg', 'video', dir2Name, file_name)
+        // 方法1：优先在 cachePath 下查找解密后的 hardlink.db
+        if (cachePath) {
+            const cacheDbPaths = [
+                join(cachePath, cleanedWxid, 'hardlink.db'),
+                join(cachePath, wxid, 'hardlink.db'),
+                join(cachePath, 'hardlink.db'),
+                join(cachePath, 'databases', cleanedWxid, 'hardlink.db'),
+                join(cachePath, 'databases', wxid, 'hardlink.db')
             ]
 
-            for (const p of candidates) {
+            for (const p of cacheDbPaths) {
                 if (existsSync(p)) {
-                    this.logInfo('hardlink 命中', { path: p })
-                    return p
-                }
-            }
-        } catch (e) {
-            this.logError('resolveHardlinkPath 异常', e)
-        }
-        return null
-    }
+                    console.log('[VideoService] Found decrypted hardlink.db at:', p)
+                    try {
+                        const db = new Database(p, { readonly: true })
+                        const row = db.prepare(`
+                            SELECT file_name, md5 FROM video_hardlink_info_v4 
+                            WHERE md5 = ? 
+                            LIMIT 1
+                        `).get(md5) as { file_name: string; md5: string } | undefined
+                        db.close()
 
-    private async searchVideoFile(accountDir: string, md5: string, sessionId?: string): Promise<string | null> {
-        const lowerMd5 = md5.toLowerCase()
-        
-        // 策略 1: 基于 sessionId 哈希的精准搜索 (XWeChat 核心逻辑)
-        if (sessionId) {
-            const sessHash = this.md5Hash(sessionId)
-            const attachRoot = join(accountDir, 'msg', 'attach', sessHash)
-            if (existsSync(attachRoot)) {
-                try {
-                    const monthDirs = readdirSync(attachRoot).filter(d => /^\d{4}-\d{2}$/.test(d))
-                    for (const m of monthDirs) {
-                        const videoDir = join(attachRoot, m, 'Video')
-                        if (existsSync(videoDir)) {
-                            // 尝试精确名和带数字后缀的名
-                            const files = readdirSync(videoDir)
-                            const match = files.find(f => f.toLowerCase().startsWith(lowerMd5) && f.toLowerCase().endsWith('.mp4'))
-                            if (match) return join(videoDir, match)
+                        if (row?.file_name) {
+                            const realMd5 = row.file_name.replace(/\.[^.]+$/, '')
+                            console.log('[VideoService] Found video filename via cache:', realMd5)
+                            return realMd5
                         }
+                    } catch (e) {
+                        console.log('[VideoService] Failed to query cached hardlink.db:', e)
                     }
-                } catch { }
+                }
             }
         }
 
-        // 策略 2: 概率搜索所有 session 目录 (针对最近 3 个月)
-        const attachRoot = join(accountDir, 'msg', 'attach')
-        if (existsSync(attachRoot)) {
-            try {
-                const sessionDirs = readdirSync(attachRoot).filter(d => d.length === 32)
-                const now = new Date()
-                const months = []
-                for (let i = 0; i < 3; i++) {
-                    const d = new Date(now.getFullYear(), now.getMonth() - i, 1)
-                    months.push(`${d.getFullYear()}-${String(d.getMonth() + 1).padStart(2, '0')}`)
-                }
+        // 方法2：使用 wcdbService.execQuery 查询加密的 hardlink.db
+        if (dbPath) {
+            const encryptedDbPaths = [
+                join(dbPath, wxid, 'db_storage', 'hardlink', 'hardlink.db'),
+                join(dbPath, cleanedWxid, 'db_storage', 'hardlink', 'hardlink.db')
+            ]
 
-                for (const sess of sessionDirs) {
-                    for (const month of months) {
-                        const videoDir = join(attachRoot, sess, month, 'Video')
-                        if (existsSync(videoDir)) {
-                            const files = readdirSync(videoDir)
-                            const match = files.find(f => f.toLowerCase().startsWith(lowerMd5) && f.toLowerCase().endsWith('.mp4'))
-                            if (match) return join(videoDir, match)
+            for (const p of encryptedDbPaths) {
+                if (existsSync(p)) {
+                    console.log('[VideoService] Found encrypted hardlink.db at:', p)
+                    try {
+                        const escapedMd5 = md5.replace(/'/g, "''")
+
+                        // 用 md5 字段查询，获取 file_name
+                        const sql = `SELECT file_name FROM video_hardlink_info_v4 WHERE md5 = '${escapedMd5}' LIMIT 1`
+                        console.log('[VideoService] Query SQL:', sql)
+
+                        const result = await wcdbService.execQuery('media', p, sql)
+                        console.log('[VideoService] Query result:', result)
+
+                        if (result.success && result.rows && result.rows.length > 0) {
+                            const row = result.rows[0]
+                            if (row?.file_name) {
+                                // 提取不带扩展名的文件名作为实际视频 MD5
+                                const realMd5 = String(row.file_name).replace(/\.[^.]+$/, '')
+                                console.log('[VideoService] Found video filename:', realMd5)
+                                return realMd5
+                            }
                         }
+                    } catch (e) {
+                        console.log('[VideoService] Failed to query encrypted hardlink.db via wcdbService:', e)
                     }
                 }
-            } catch { }
+            }
         }
 
-        // 策略 3: 传统 msg/video 目录
-        const videoRoot = join(accountDir, 'msg', 'video')
-        if (existsSync(videoRoot)) {
-            try {
-                const monthDirs = readdirSync(videoRoot).sort().reverse()
-                for (const m of monthDirs) {
-                    const dirPath = join(videoRoot, m)
-                    const files = readdirSync(dirPath)
-                    const match = files.find(f => f.toLowerCase().startsWith(lowerMd5) && f.toLowerCase().endsWith('.mp4'))
-                    if (match) return join(dirPath, match)
-                }
-            } catch { }
-        }
-
-        return null
-    }
-
-    private getXorKey(): number | undefined {
-        const raw = this.configService.get('imageXorKey')
-        if (typeof raw === 'number') return raw
-        if (typeof raw === 'string') {
-            const t = raw.trim()
-            return t.toLowerCase().startsWith('0x') ? parseInt(t, 16) : parseInt(t, 10)
-        }
+        console.log('[VideoService] No matching video found in hardlink.db')
         return undefined
     }
 
-    private isEncrypted(buffer: Buffer, xorKey: number, type: 'video' | 'image'): boolean {
-        if (buffer.length < 8) return false
-        const first = buffer[0] ^ xorKey
-        const second = buffer[1] ^ xorKey
-        
-        if (type === 'image') {
-            return (first === 0xFF && second === 0xD8) || (first === 0x89 && second === 0x50) || (first === 0x47 && second === 0x49)
-        } else {
-            // MP4 头部通常包含 'ftyp'
-            const f = buffer[4] ^ xorKey
-            const t = buffer[5] ^ xorKey
-            const y = buffer[6] ^ xorKey
-            const p = buffer[7] ^ xorKey
-            return (f === 0x66 && t === 0x74 && y === 0x79 && p === 0x70) || // 'ftyp'
-                   (buffer[0] ^ xorKey) === 0x00 && (buffer[1] ^ xorKey) === 0x00 // 一些 mp4 以 00 00 开头
-        }
-    }
-
-    private filePathToUrl(filePath: string): string {
-        try {
-            const { pathToFileURL } = require('url')
-            const url = pathToFileURL(filePath).toString()
-            const s = statSync(filePath)
-            return `${url}?v=${Math.floor(s.mtimeMs)}`
-        } catch {
-            return `file:///${filePath.replace(/\\/g, '/')}`
-        }
-    }
-
-    private handleFile(filePath: string, type: 'video' | 'image', sessionId?: string): string | undefined {
-        if (!existsSync(filePath)) return undefined
-        const xorKey = this.getXorKey()
-        
+    /**
+     * 将文件转换为 data URL
+     */
+    private fileToDataUrl(filePath: string, mimeType: string): string | undefined {
         try {
+            if (!existsSync(filePath)) return undefined
             const buffer = readFileSync(filePath)
-            const isEnc = xorKey !== undefined && !Number.isNaN(xorKey) && this.isEncrypted(buffer, xorKey, type)
-
-            if (isEnc) {
-                const decrypted = Buffer.alloc(buffer.length)
-                for (let i = 0; i < buffer.length; i++) decrypted[i] = buffer[i] ^ xorKey!
-                
-                if (type === 'image') {
-                    return `data:image/jpeg;base64,${decrypted.toString('base64')}`
-                } else {
-                    const cacheDir = join(this.getCacheBasePath(), 'Videos', this.cleanWxid(sessionId || 'unknown'))
-                    if (!existsSync(cacheDir)) mkdirSync(cacheDir, { recursive: true })
-                    const outPath = join(cacheDir, `${basename(filePath)}`)
-                    if (!existsSync(outPath) || statSync(outPath).size !== decrypted.length) {
-                        writeFileSync(outPath, decrypted)
-                    }
-                    return this.filePathToUrl(outPath)
-                }
-            }
-
-            if (type === 'image') {
-                return `data:image/jpeg;base64,${buffer.toString('base64')}`
-            }
-            return this.filePathToUrl(filePath)
-        } catch (e) {
-            this.logError(`处理${type}文件异常: ${filePath}`, e)
-            return type === 'image' ? undefined : this.filePathToUrl(filePath)
+            return `data:${mimeType};base64,${buffer.toString('base64')}`
+        } catch {
+            return undefined
         }
     }
 
-    async getVideoInfo(videoMd5: string, sessionId?: string): Promise<VideoInfo> {
-        this.logInfo('获取视频信息', { videoMd5, sessionId })
+    /**
+     * 根据视频MD5获取视频文件信息
+     * 视频存放在: {数据库根目录}/{用户wxid}/msg/video/{年月}/
+     * 文件命名: {md5}.mp4, {md5}.jpg, {md5}_thumb.jpg
+     */
+    async getVideoInfo(videoMd5: string): Promise<VideoInfo> {
+        console.log('[VideoService] getVideoInfo called with MD5:', videoMd5)
+
         const dbPath = this.getDbPath()
         const wxid = this.getMyWxid()
-        if (!dbPath || !wxid || !videoMd5) return { exists: false }
 
-        const accountDir = this.resolveAccountDir(dbPath, wxid)
-        if (!accountDir) {
-            this.logError('未找到账号目录', undefined, { dbPath, wxid })
+        console.log('[VideoService] Config - dbPath:', dbPath, 'wxid:', wxid)
+
+        if (!dbPath || !wxid || !videoMd5) {
+            console.log('[VideoService] Missing required params')
             return { exists: false }
         }
 
-        // 1. 通过 hardlink 映射
-        let videoPath = await this.resolveHardlinkPath(accountDir, videoMd5)
+        // 先尝试从数据库查询真正的视频文件名
+        const realVideoMd5 = await this.queryVideoFileName(videoMd5) || videoMd5
+        console.log('[VideoService] Real video MD5:', realVideoMd5)
 
-        // 2. 启发式搜索
-        if (!videoPath) {
-            videoPath = await this.searchVideoFile(accountDir, videoMd5, sessionId)
+        const videoBaseDir = join(dbPath, wxid, 'msg', 'video')
+        console.log('[VideoService] Video base dir:', videoBaseDir)
+
+        if (!existsSync(videoBaseDir)) {
+            console.log('[VideoService] Video base dir does not exist')
+            return { exists: false }
         }
 
-        if (videoPath && existsSync(videoPath)) {
-            this.logInfo('定位成功', { videoPath })
-            const base = videoPath.slice(0, -4)
-            const coverPath = `${base}.jpg`
-            const thumbPath = `${base}_thumb.jpg`
+        // 遍历年月目录查找视频文件
+        try {
+            const allDirs = readdirSync(videoBaseDir)
+            console.log('[VideoService] Found year-month dirs:', allDirs)
 
-            return {
-                videoUrl: this.handleFile(videoPath, 'video', sessionId),
-                coverUrl: this.handleFile(coverPath, 'image', sessionId),
-                thumbUrl: this.handleFile(thumbPath, 'image', sessionId),
-                exists: true
+            // 支持多种目录格式: YYYY-MM, YYYYMM, 或其他
+            const yearMonthDirs = allDirs
+                .filter(dir => {
+                    const dirPath = join(videoBaseDir, dir)
+                    return statSync(dirPath).isDirectory()
+                })
+                .sort((a, b) => b.localeCompare(a)) // 从最新的目录开始查找
+
+            for (const yearMonth of yearMonthDirs) {
+                const dirPath = join(videoBaseDir, yearMonth)
+
+                const videoPath = join(dirPath, `${realVideoMd5}.mp4`)
+                const coverPath = join(dirPath, `${realVideoMd5}.jpg`)
+                const thumbPath = join(dirPath, `${realVideoMd5}_thumb.jpg`)
+
+                console.log('[VideoService] Checking:', videoPath)
+
+                // 检查视频文件是否存在
+                if (existsSync(videoPath)) {
+                    console.log('[VideoService] Video file found!')
+                    return {
+                        videoUrl: videoPath,  // 返回文件路径，前端通过 readFile 读取
+                        coverUrl: this.fileToDataUrl(coverPath, 'image/jpeg'),
+                        thumbUrl: this.fileToDataUrl(thumbPath, 'image/jpeg'),
+                        exists: true
+                    }
+                }
             }
+
+            console.log('[VideoService] Video file not found in any directory')
+        } catch (e) {
+            console.error('[VideoService] Error searching for video:', e)
         }
 
-        this.logInfo('定位失败', { videoMd5 })
         return { exists: false }
     }
 
+    /**
+     * 根据消息内容解析视频MD5
+     */
     parseVideoMd5(content: string): string | undefined {
+        console.log('[VideoService] parseVideoMd5 called, content length:', content?.length)
+
+        // 打印前500字符看看 XML 结构
+        console.log('[VideoService] XML preview:', content?.substring(0, 500))
+
         if (!content) return undefined
+
         try {
-            const m = /<videomsg[^>]*\smd5\s*=\s*['"]([a-fA-F0-9]+)['"]/i.exec(content) || 
-                    /\smd5\s*=\s*['"]([a-fA-F0-9]+)['"]/i.exec(content) ||
-                    /<md5>([a-fA-F0-9]+)<\/md5>/i.exec(content)
-            return m ? m[1].toLowerCase() : undefined
-        } catch { return undefined }
+            // 提取所有可能的 md5 值进行日志
+            const allMd5s: string[] = []
+            const md5Regex = /(?:md5|rawmd5|newmd5|originsourcemd5)\s*=\s*['"]([a-fA-F0-9]+)['"]/gi
+            let match
+            while ((match = md5Regex.exec(content)) !== null) {
+                allMd5s.push(`${match[0]}`)
+            }
+            console.log('[VideoService] All MD5 attributes found:', allMd5s)
+
+            // 提取 md5（用于查询 hardlink.db）
+            // 注意：不是 rawmd5，rawmd5 是另一个值
+            // 格式: md5="xxx" 或 <md5>xxx</md5>
+
+            // 尝试从videomsg标签中提取md5
+            const videoMsgMatch = /<videomsg[^>]*\smd5\s*=\s*['"]([a-fA-F0-9]+)['"]/i.exec(content)
+            if (videoMsgMatch) {
+                console.log('[VideoService] Found MD5 via videomsg:', videoMsgMatch[1])
+                return videoMsgMatch[1].toLowerCase()
+            }
+
+            const attrMatch = /\smd5\s*=\s*['"]([a-fA-F0-9]+)['"]/i.exec(content)
+            if (attrMatch) {
+                console.log('[VideoService] Found MD5 via attribute:', attrMatch[1])
+                return attrMatch[1].toLowerCase()
+            }
+
+            const md5Match = /<md5>([a-fA-F0-9]+)<\/md5>/i.exec(content)
+            if (md5Match) {
+                console.log('[VideoService] Found MD5 via <md5> tag:', md5Match[1])
+                return md5Match[1].toLowerCase()
+            }
+
+            console.log('[VideoService] No MD5 found in content')
+        } catch (e) {
+            console.error('[VideoService] 解析视频MD5失败:', e)
+        }
+
+        return undefined
     }
 }
 

src/pages/ChatPage.tsx

@@ -3540,13 +3540,12 @@ function MessageBubble({
   const requestVideoInfo = useCallback(async () => {
     if (!videoMd5 || videoLoadingRef.current) return
 
-    videoLoadingRef.current = true
-    setVideoLoading(true)
-    try {
-      const result = await window.electronAPI.video.getVideoInfo(videoMd5, session.username)
-      if (result && result.success && result.exists) {
-        setVideoInfo({
-          exists: result.exists,
+        videoLoadingRef.current = true
+        setVideoLoading(true)
+        try {
+          const result = await window.electronAPI.video.getVideoInfo(videoMd5)
+          if (result && result.success && result.exists) {        
+            setVideoInfo({          exists: result.exists,
           videoUrl: result.videoUrl,
           coverUrl: result.coverUrl,
           thumbUrl: result.thumbUrl
@@ -3560,7 +3559,7 @@ function MessageBubble({
       videoLoadingRef.current = false
       setVideoLoading(false)
     }
-  }, [videoMd5, session.username])
+  }, [videoMd5])
 
   // 视频进入视野时自动加载
   useEffect(() => {