mirror of
https://github.com/hicccc77/WeFlow.git
synced 2026-03-24 15:19:03 +08:00
359 lines
15 KiB
TypeScript
359 lines
15 KiB
TypeScript
import { join } from 'path'
|
||
import { existsSync, readdirSync, statSync, readFileSync, appendFileSync, mkdirSync } from 'fs'
|
||
import { app } from 'electron'
|
||
import { ConfigService } from './config'
|
||
import Database from 'better-sqlite3'
|
||
import { wcdbService } from './wcdbService'
|
||
|
||
export interface VideoInfo {
|
||
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
|
||
}
|
||
|
||
class VideoService {
|
||
private configService: ConfigService
|
||
|
||
constructor() {
|
||
this.configService = new ConfigService()
|
||
}
|
||
|
||
private log(message: string, meta?: Record<string, unknown>): void {
|
||
try {
|
||
const timestamp = new Date().toISOString()
|
||
const metaStr = meta ? ` ${JSON.stringify(meta)}` : ''
|
||
const logDir = join(app.getPath('userData'), 'logs')
|
||
if (!existsSync(logDir)) mkdirSync(logDir, { recursive: true })
|
||
appendFileSync(join(logDir, 'wcdb.log'), `[${timestamp}] [VideoService] ${message}${metaStr}\n`, 'utf8')
|
||
} catch {}
|
||
}
|
||
|
||
/**
|
||
* 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') || ''
|
||
}
|
||
|
||
/**
|
||
* 获取缓存目录（解密后的数据库存放位置）
|
||
*/
|
||
private getCachePath(): string {
|
||
return this.configService.getCacheBasePath()
|
||
}
|
||
|
||
/**
|
||
* 清理 wxid 目录名（去掉后缀）
|
||
*/
|
||
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]
|
||
return trimmed
|
||
}
|
||
|
||
const suffixMatch = trimmed.match(/^(.+)_([a-zA-Z0-9]{4})$/)
|
||
if (suffixMatch) return suffixMatch[1]
|
||
|
||
return trimmed
|
||
}
|
||
|
||
/**
|
||
* 从 video_hardlink_info_v4 表查询视频文件名
|
||
* 优先使用 cachePath 中解密后的 hardlink.db（使用 better-sqlite3）
|
||
* 如果失败，则尝试使用 wcdbService.execQuery 查询加密的 hardlink.db
|
||
*/
|
||
private async queryVideoFileName(md5: string): Promise<string | undefined> {
|
||
const cachePath = this.getCachePath()
|
||
const dbPath = this.getDbPath()
|
||
const wxid = this.getMyWxid()
|
||
const cleanedWxid = this.cleanWxid(wxid)
|
||
|
||
this.log('queryVideoFileName 开始', { md5, wxid, cleanedWxid, cachePath, dbPath })
|
||
|
||
if (!wxid) {
|
||
this.log('queryVideoFileName: wxid 为空')
|
||
return undefined
|
||
}
|
||
|
||
// 方法1：优先在 cachePath 下查找解密后的 hardlink.db
|
||
if (cachePath) {
|
||
const cacheDbPaths = [
|
||
join(cachePath, cleanedWxid, 'hardlink.db'),
|
||
join(cachePath, wxid, 'hardlink.db'),
|
||
join(cachePath, 'hardlink.db'),
|
||
join(cachePath, 'databases', cleanedWxid, 'hardlink.db'),
|
||
join(cachePath, 'databases', wxid, 'hardlink.db')
|
||
]
|
||
|
||
for (const p of cacheDbPaths) {
|
||
if (existsSync(p)) {
|
||
try {
|
||
this.log('尝试缓存 hardlink.db', { path: p })
|
||
const db = new Database(p, { readonly: true })
|
||
const row = db.prepare(`
|
||
SELECT file_name, md5 FROM video_hardlink_info_v4
|
||
WHERE md5 = ?
|
||
LIMIT 1
|
||
`).get(md5) as { file_name: string; md5: string } | undefined
|
||
db.close()
|
||
|
||
if (row?.file_name) {
|
||
const realMd5 = row.file_name.replace(/\.[^.]+$/, '')
|
||
this.log('缓存 hardlink.db 命中', { file_name: row.file_name, realMd5 })
|
||
return realMd5
|
||
}
|
||
this.log('缓存 hardlink.db 未命中', { path: p })
|
||
} catch (e) {
|
||
this.log('缓存 hardlink.db 查询失败', { path: p, error: String(e) })
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
// 方法2：使用 wcdbService.execQuery 查询加密的 hardlink.db
|
||
if (dbPath) {
|
||
const dbPathLower = dbPath.toLowerCase()
|
||
const wxidLower = wxid.toLowerCase()
|
||
const cleanedWxidLower = cleanedWxid.toLowerCase()
|
||
const dbPathContainsWxid = dbPathLower.includes(wxidLower) || dbPathLower.includes(cleanedWxidLower)
|
||
|
||
const encryptedDbPaths: string[] = []
|
||
if (dbPathContainsWxid) {
|
||
encryptedDbPaths.push(join(dbPath, 'db_storage', 'hardlink', 'hardlink.db'))
|
||
} else {
|
||
encryptedDbPaths.push(join(dbPath, wxid, 'db_storage', 'hardlink', 'hardlink.db'))
|
||
encryptedDbPaths.push(join(dbPath, cleanedWxid, 'db_storage', 'hardlink', 'hardlink.db'))
|
||
}
|
||
|
||
for (const p of encryptedDbPaths) {
|
||
if (existsSync(p)) {
|
||
try {
|
||
this.log('尝试加密 hardlink.db', { path: p })
|
||
const escapedMd5 = md5.replace(/'/g, "''")
|
||
const sql = `SELECT file_name FROM video_hardlink_info_v4 WHERE md5 = '${escapedMd5}' LIMIT 1`
|
||
const result = await wcdbService.execQuery('media', p, sql)
|
||
|
||
if (result.success && result.rows && result.rows.length > 0) {
|
||
const row = result.rows[0]
|
||
if (row?.file_name) {
|
||
const realMd5 = String(row.file_name).replace(/\.[^.]+$/, '')
|
||
this.log('加密 hardlink.db 命中', { file_name: row.file_name, realMd5 })
|
||
return realMd5
|
||
}
|
||
}
|
||
this.log('加密 hardlink.db 未命中', { path: p, result: JSON.stringify(result).slice(0, 200) })
|
||
} catch (e) {
|
||
this.log('加密 hardlink.db 查询失败', { path: p, error: String(e) })
|
||
}
|
||
} else {
|
||
this.log('加密 hardlink.db 不存在', { path: p })
|
||
}
|
||
}
|
||
}
|
||
this.log('queryVideoFileName: 所有方法均未找到', { md5 })
|
||
return undefined
|
||
}
|
||
|
||
/**
|
||
* 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)
|
||
return `data:${mimeType};base64,${buffer.toString('base64')}`
|
||
} catch {
|
||
return undefined
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 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> {
|
||
const dbPath = this.getDbPath()
|
||
const wxid = this.getMyWxid()
|
||
|
||
this.log('getVideoInfo 开始', { videoMd5, dbPath, wxid })
|
||
|
||
if (!dbPath || !wxid || !videoMd5) {
|
||
this.log('getVideoInfo: 参数缺失', { dbPath: !!dbPath, wxid: !!wxid, videoMd5: !!videoMd5 })
|
||
return { exists: false }
|
||
}
|
||
|
||
// 先尝试从数据库查询真正的视频文件名
|
||
const realVideoMd5 = await this.queryVideoFileName(videoMd5) || videoMd5
|
||
this.log('realVideoMd5', { input: videoMd5, resolved: realVideoMd5, changed: realVideoMd5 !== videoMd5 })
|
||
|
||
// 检查 dbPath 是否已经包含 wxid，避免重复拼接
|
||
const dbPathLower = dbPath.toLowerCase()
|
||
const wxidLower = wxid.toLowerCase()
|
||
const cleanedWxid = this.cleanWxid(wxid)
|
||
|
||
let videoBaseDir: string
|
||
if (dbPathLower.includes(wxidLower) || dbPathLower.includes(cleanedWxid.toLowerCase())) {
|
||
videoBaseDir = join(dbPath, 'msg', 'video')
|
||
} else {
|
||
videoBaseDir = join(dbPath, wxid, 'msg', 'video')
|
||
}
|
||
|
||
this.log('videoBaseDir', { videoBaseDir, exists: existsSync(videoBaseDir) })
|
||
|
||
if (!existsSync(videoBaseDir)) {
|
||
this.log('getVideoInfo: videoBaseDir 不存在')
|
||
return { exists: false }
|
||
}
|
||
|
||
// 遍历年月目录查找视频文件
|
||
try {
|
||
const allDirs = readdirSync(videoBaseDir)
|
||
const yearMonthDirs = allDirs
|
||
.filter(dir => {
|
||
const dirPath = join(videoBaseDir, dir)
|
||
return statSync(dirPath).isDirectory()
|
||
})
|
||
.sort((a, b) => b.localeCompare(a))
|
||
|
||
this.log('扫描目录', { dirs: yearMonthDirs })
|
||
|
||
for (const yearMonth of yearMonthDirs) {
|
||
const dirPath = join(videoBaseDir, yearMonth)
|
||
const videoPath = join(dirPath, `${realVideoMd5}.mp4`)
|
||
|
||
if (existsSync(videoPath)) {
|
||
// 封面/缩略图使用不带 _raw 后缀的基础名（自己发的视频文件名带 _raw，但封面不带）
|
||
const baseMd5 = realVideoMd5.replace(/_raw$/, '')
|
||
const coverPath = join(dirPath, `${baseMd5}.jpg`)
|
||
const thumbPath = join(dirPath, `${baseMd5}_thumb.jpg`)
|
||
|
||
// 列出同目录下与该 md5 相关的所有文件，帮助排查封面命名
|
||
const allFiles = readdirSync(dirPath)
|
||
const relatedFiles = allFiles.filter(f => f.toLowerCase().startsWith(realVideoMd5.slice(0, 8).toLowerCase()))
|
||
this.log('找到视频，相关文件列表', {
|
||
videoPath,
|
||
coverExists: existsSync(coverPath),
|
||
thumbExists: existsSync(thumbPath),
|
||
relatedFiles,
|
||
coverPath,
|
||
thumbPath
|
||
})
|
||
|
||
return {
|
||
videoUrl: videoPath,
|
||
coverUrl: this.fileToDataUrl(coverPath, 'image/jpeg'),
|
||
thumbUrl: this.fileToDataUrl(thumbPath, 'image/jpeg'),
|
||
exists: true
|
||
}
|
||
}
|
||
}
|
||
|
||
// 没找到，列出所有目录里的 mp4 文件帮助排查（最多每目录 10 个）
|
||
this.log('未找到视频，开始全目录扫描', {
|
||
lookingForOriginal: `${videoMd5}.mp4`,
|
||
lookingForResolved: `${realVideoMd5}.mp4`,
|
||
hardlinkResolved: realVideoMd5 !== videoMd5
|
||
})
|
||
for (const yearMonth of yearMonthDirs) {
|
||
const dirPath = join(videoBaseDir, yearMonth)
|
||
try {
|
||
const allFiles = readdirSync(dirPath)
|
||
const mp4Files = allFiles.filter(f => f.endsWith('.mp4')).slice(0, 10)
|
||
// 检查原始 md5 是否部分匹配（前8位）
|
||
const partialMatch = mp4Files.filter(f => f.toLowerCase().startsWith(videoMd5.slice(0, 8).toLowerCase()))
|
||
this.log(`目录 ${yearMonth} 扫描结果`, {
|
||
totalFiles: allFiles.length,
|
||
mp4Count: allFiles.filter(f => f.endsWith('.mp4')).length,
|
||
sampleMp4: mp4Files,
|
||
partialMatchByOriginalMd5: partialMatch
|
||
})
|
||
} catch (e) {
|
||
this.log(`目录 ${yearMonth} 读取失败`, { error: String(e) })
|
||
}
|
||
}
|
||
} catch (e) {
|
||
this.log('getVideoInfo 遍历出错', { error: String(e) })
|
||
}
|
||
|
||
this.log('getVideoInfo: 未找到视频', { videoMd5, realVideoMd5 })
|
||
return { exists: false }
|
||
}
|
||
|
||
/**
|
||
* 根据消息内容解析视频MD5
|
||
*/
|
||
parseVideoMd5(content: string): string | undefined {
|
||
if (!content) return undefined
|
||
|
||
// 打印原始 XML 前 800 字符，帮助排查自己发的视频结构
|
||
this.log('parseVideoMd5 原始内容', { preview: content.slice(0, 800) })
|
||
|
||
try {
|
||
// 收集所有 md5 相关属性，方便对比
|
||
const allMd5Attrs: string[] = []
|
||
const md5Regex = /(?:md5|rawmd5|newmd5|originsourcemd5)\s*=\s*['"]([a-fA-F0-9]*)['"]/gi
|
||
let match
|
||
while ((match = md5Regex.exec(content)) !== null) {
|
||
allMd5Attrs.push(match[0])
|
||
}
|
||
this.log('parseVideoMd5 所有 md5 属性', { attrs: allMd5Attrs })
|
||
|
||
// 方法1：从 <videomsg md5="..."> 提取（收到的视频）
|
||
const videoMsgMd5Match = /<videomsg[^>]*\smd5\s*=\s*['"]([a-fA-F0-9]+)['"]/i.exec(content)
|
||
if (videoMsgMd5Match) {
|
||
this.log('parseVideoMd5 命中 videomsg md5 属性', { md5: videoMsgMd5Match[1] })
|
||
return videoMsgMd5Match[1].toLowerCase()
|
||
}
|
||
|
||
// 方法2：从 <videomsg rawmd5="..."> 提取（自己发的视频，没有 md5 只有 rawmd5）
|
||
const rawMd5Match = /<videomsg[^>]*\srawmd5\s*=\s*['"]([a-fA-F0-9]+)['"]/i.exec(content)
|
||
if (rawMd5Match) {
|
||
this.log('parseVideoMd5 命中 videomsg rawmd5 属性（自发视频）', { rawmd5: rawMd5Match[1] })
|
||
return rawMd5Match[1].toLowerCase()
|
||
}
|
||
|
||
// 方法3：任意属性 md5="..."（非 rawmd5/cdnthumbaeskey 等）
|
||
const attrMatch = /(?<![a-z])md5\s*=\s*['"]([a-fA-F0-9]+)['"]/i.exec(content)
|
||
if (attrMatch) {
|
||
this.log('parseVideoMd5 命中通用 md5 属性', { md5: attrMatch[1] })
|
||
return attrMatch[1].toLowerCase()
|
||
}
|
||
|
||
// 方法4：<md5>...</md5> 标签
|
||
const md5TagMatch = /<md5>([a-fA-F0-9]+)<\/md5>/i.exec(content)
|
||
if (md5TagMatch) {
|
||
this.log('parseVideoMd5 命中 md5 标签', { md5: md5TagMatch[1] })
|
||
return md5TagMatch[1].toLowerCase()
|
||
}
|
||
|
||
// 方法5：兜底取 rawmd5 属性（任意位置）
|
||
const rawMd5Fallback = /\srawmd5\s*=\s*['"]([a-fA-F0-9]+)['"]/i.exec(content)
|
||
if (rawMd5Fallback) {
|
||
this.log('parseVideoMd5 兜底命中 rawmd5', { rawmd5: rawMd5Fallback[1] })
|
||
return rawMd5Fallback[1].toLowerCase()
|
||
}
|
||
|
||
this.log('parseVideoMd5 未提取到任何 md5', { contentLength: content.length })
|
||
} catch (e) {
|
||
this.log('parseVideoMd5 异常', { error: String(e) })
|
||
}
|
||
|
||
return undefined
|
||
}
|
||
}
|
||
|
||
export const videoService = new VideoService()
|