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  6.     <title>Code coverage report for services/oss.service.ts</title>
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    22. 

  22.         <h1><a href="../index.html">All files</a> / <a href="index.html">services</a> oss.service.ts</h1>
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  23.         <div class='clearfix'>
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  53.         </div>
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  54.         <p class="quiet">
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  55.             Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
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  64.     <div class='status-line low'></div>
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  65.     <pre><table class="coverage">
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  66. <tr><td class="line-count quiet"><a name='L1'></a><a href='#L1'>1</a>
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    255. 

  255. <a name='L190'></a><a href='#L190'>190</a>
    256. 

  256. <a name='L191'></a><a href='#L191'>191</a>
    257. 

  257. <a name='L192'></a><a href='#L192'>192</a>
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  258. <a name='L193'></a><a href='#L193'>193</a>
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  259. <a name='L194'></a><a href='#L194'>194</a>
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  260. <a name='L195'></a><a href='#L195'>195</a>
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  261. <a name='L196'></a><a href='#L196'>196</a>
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  262. <a name='L197'></a><a href='#L197'>197</a>
    263. 

  263. <a name='L198'></a><a href='#L198'>198</a>
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  264. <a name='L199'></a><a href='#L199'>199</a>
    265. 

  265. <a name='L200'></a><a href='#L200'>200</a>
    266. 

  266. <a name='L201'></a><a href='#L201'>201</a>
    267. 

  267. <a name='L202'></a><a href='#L202'>202</a>
    268. 

  268. <a name='L203'></a><a href='#L203'>203</a>
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  269. <a name='L204'></a><a href='#L204'>204</a>
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  270. <a name='L205'></a><a href='#L205'>205</a>
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  271. <a name='L206'></a><a href='#L206'>206</a>
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  272. <a name='L207'></a><a href='#L207'>207</a>
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  273. <a name='L208'></a><a href='#L208'>208</a>
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  274. <a name='L209'></a><a href='#L209'>209</a>
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  275. <a name='L210'></a><a href='#L210'>210</a>
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  276. <a name='L211'></a><a href='#L211'>211</a>
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  277. <a name='L212'></a><a href='#L212'>212</a>
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  278. <a name='L213'></a><a href='#L213'>213</a>
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  279. <a name='L214'></a><a href='#L214'>214</a>
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  280. <a name='L215'></a><a href='#L215'>215</a>
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  281. <a name='L216'></a><a href='#L216'>216</a>
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  282. <a name='L217'></a><a href='#L217'>217</a>
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  283. <a name='L218'></a><a href='#L218'>218</a>
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  284. <a name='L219'></a><a href='#L219'>219</a>
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  285. <a name='L220'></a><a href='#L220'>220</a>
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  286. <a name='L221'></a><a href='#L221'>221</a>
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  287. <a name='L222'></a><a href='#L222'>222</a>
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  288. <a name='L223'></a><a href='#L223'>223</a>
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  289. <a name='L224'></a><a href='#L224'>224</a>
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  290. <a name='L225'></a><a href='#L225'>225</a>
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  291. <a name='L226'></a><a href='#L226'>226</a>
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  292. <a name='L227'></a><a href='#L227'>227</a>
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  293. <a name='L228'></a><a href='#L228'>228</a>
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  294. <a name='L229'></a><a href='#L229'>229</a>
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  295. <a name='L230'></a><a href='#L230'>230</a>
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  296. <a name='L231'></a><a href='#L231'>231</a>
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  297. <a name='L232'></a><a href='#L232'>232</a>
    298. 

  298. <a name='L233'></a><a href='#L233'>233</a>
    299. 

  299. <a name='L234'></a><a href='#L234'>234</a>
    300. 

  300. <a name='L235'></a><a href='#L235'>235</a>
    301. 

  301. <a name='L236'></a><a href='#L236'>236</a>
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  302. <a name='L237'></a><a href='#L237'>237</a>
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  303. <a name='L238'></a><a href='#L238'>238</a>
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  304. <a name='L239'></a><a href='#L239'>239</a>
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  305. <a name='L240'></a><a href='#L240'>240</a>
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  306. <a name='L241'></a><a href='#L241'>241</a>
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  307. <a name='L242'></a><a href='#L242'>242</a>
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  308. <a name='L243'></a><a href='#L243'>243</a>
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  309. <a name='L244'></a><a href='#L244'>244</a>
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  310. <a name='L245'></a><a href='#L245'>245</a>
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  311. <a name='L246'></a><a href='#L246'>246</a>
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  312. <a name='L247'></a><a href='#L247'>247</a>
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  313. <a name='L248'></a><a href='#L248'>248</a>
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  314. <a name='L249'></a><a href='#L249'>249</a>
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  315. <a name='L250'></a><a href='#L250'>250</a>
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  316. <a name='L251'></a><a href='#L251'>251</a>
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  317. <a name='L252'></a><a href='#L252'>252</a>
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  318. <a name='L253'></a><a href='#L253'>253</a>
    319. 

  319. <a name='L254'></a><a href='#L254'>254</a>
    320. 

  320. <a name='L255'></a><a href='#L255'>255</a>
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  554. <span class="cline-any cline-neutral">&nbsp;</span>
    555. 

  555. <span class="cline-any cline-no">&nbsp;</span>
    556. 

  556. <span class="cline-any cline-no">&nbsp;</span>
    557. 

  557. <span class="cline-any cline-neutral">&nbsp;</span>
    558. 

  558. <span class="cline-any cline-neutral">&nbsp;</span>
    559. 

  559. <span class="cline-any cline-neutral">&nbsp;</span>
    560. 

  560. <span class="cline-any cline-neutral">&nbsp;</span>
    561. 

  561. <span class="cline-any cline-no">&nbsp;</span>
    562. 

  562. <span class="cline-any cline-no">&nbsp;</span>
    563. 

  563. <span class="cline-any cline-no">&nbsp;</span>
    564. 

  564. <span class="cline-any cline-no">&nbsp;</span>
    565. 

  565. <span class="cline-any cline-no">&nbsp;</span>
    566. 

  566. <span class="cline-any cline-no">&nbsp;</span>
    567. 

  567. <span class="cline-any cline-no">&nbsp;</span>
    568. 

  568. <span class="cline-any cline-no">&nbsp;</span>
    569. 

  569. <span class="cline-any cline-no">&nbsp;</span>
    570. 

  570. <span class="cline-any cline-no">&nbsp;</span>
    571. 

  571. <span class="cline-any cline-no">&nbsp;</span>
    572. 

  572. <span class="cline-any cline-neutral">&nbsp;</span>
    573. 

  573. <span class="cline-any cline-neutral">&nbsp;</span>
    574. 

  574. <span class="cline-any cline-no">&nbsp;</span>
    575. 

  575. <span class="cline-any cline-no">&nbsp;</span>
    576. 

  576. <span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js"><span class="cstat-no" title="statement not covered" >import OSS from 'ali-oss';<span class="fstat-no" title="function not covered" ><span class="branch-0 cbranch-no" title="branch not covered" ></span></span></span>
    577. 

  577. import path from 'path';
    578. 

  578. import fs from 'fs';
    579. 

  579. &nbsp;
    580. 

  580. interface OSSConfig {
    581. 

  581.   region: string;
    582. 

  582.   accessKeyId: string;
    583. 

  583.   accessKeySecret: string;
    584. 

  584.   bucket: string;
    585. 

  585.   endpoint?: string;
    586. 

  586. }
    587. 

  587. &nbsp;
    588. 

  588. <span class="cstat-no" title="statement not covered" >class OSSService {</span>
    589. 

  589. <span class="cstat-no" title="statement not covered" >  private client: OSS;</span>
    590. 

  590. <span class="cstat-no" title="statement not covered" >  private bucket: string;</span>
    591. 

  591. <span class="cstat-no" title="statement not covered" >  private cdnDomain?: string;</span>
    592. 

  592. &nbsp;
    593. 

  593. <span class="cstat-no" title="statement not covered" >  constructor() {</span>
    594. 

  594. <span class="cstat-no" title="statement not covered" >    const config: OSSConfig = {</span>
    595. 

  595. <span class="cstat-no" title="statement not covered" >      region: process.env.OSS_REGION || 'oss-cn-hangzhou',</span>
    596. 

  596. <span class="cstat-no" title="statement not covered" >      accessKeyId: process.env.OSS_ACCESS_KEY_ID || '',</span>
    597. 

  597. <span class="cstat-no" title="statement not covered" >      accessKeySecret: process.env.OSS_ACCESS_KEY_SECRET || '',</span>
    598. 

  598. <span class="cstat-no" title="statement not covered" >      bucket: process.env.OSS_BUCKET_NAME || '',</span>
    599. 

  599. <span class="cstat-no" title="statement not covered" >      endpoint: process.env.OSS_ENDPOINT || 'oss-cn-hangzhou.aliyuncs.com',</span>
    600. 

  600. <span class="cstat-no" title="statement not covered" >    };</span>
    601. 

  601. &nbsp;
    602. 

  602. <span class="cstat-no" title="statement not covered" >    this.client = new OSS(config);</span>
    603. 

  603. <span class="cstat-no" title="statement not covered" >    this.bucket = config.bucket;</span>
    604. 

  604. <span class="cstat-no" title="statement not covered" >    this.cdnDomain = process.env.OSS_CDN_DOMAIN;</span>
    605. 

  605. <span class="cstat-no" title="statement not covered" >  }</span>
    606. 

  606. &nbsp;
    607. 

  607.   /**
    608. 

  608.    * 上传文件到 OSS
    609. 

  609.    * @param localPath 本地文件路径
    610. 

  610.    * @param objectKey OSS 对象键（路径）
    611. 

  611.    * @returns OSS 文件 URL
    612. 

  612.    */
    613. 

  613. <span class="cstat-no" title="statement not covered" >  async uploadFile(localPath: string, objectKey: string): Promise&lt;string&gt; {</span>
    614. 

  614. <span class="cstat-no" title="statement not covered" >    try {</span>
    615. 

  615.       // 确保 objectKey 格式正确
    616. 

  616. <span class="cstat-no" title="statement not covered" >      const normalizedKey = objectKey.replace(/\\/g, '/').replace(/^\/+/, '');</span>
    617. 

  617.       
    618. 

  618. <span class="cstat-no" title="statement not covered" >      const result = await this.client.put(normalizedKey, localPath, {</span>
    619. 

  619. <span class="cstat-no" title="statement not covered" >        headers: {</span>
    620. 

  620. <span class="cstat-no" title="statement not covered" >          'Content-Type': this.getContentType(normalizedKey),</span>
    621. 

  621. <span class="cstat-no" title="statement not covered" >        },</span>
    622. 

  622. <span class="cstat-no" title="statement not covered" >      });</span>
    623. 

  623. &nbsp;
    624. 

  624. <span class="cstat-no" title="statement not covered" >      console.log(`[OSS] 文件上传成功: ${normalizedKey}`);</span>
    625. 

  625.       
    626. 

  626.       // 返回文件 URL
    627. 

  627. <span class="cstat-no" title="statement not covered" >      return this.getFileUrl(normalizedKey);</span>
    628. 

  628. <span class="cstat-no" title="statement not covered" >    } catch (error) {</span>
    629. 

  629. <span class="cstat-no" title="statement not covered" >      console.error('[OSS] 文件上传失败:', error);</span>
    630. 

  630. <span class="cstat-no" title="statement not covered" >      throw new Error(`OSS 上传失败: ${(error as Error).message}`);</span>
    631. 

  631. <span class="cstat-no" title="statement not covered" >    }</span>
    632. 

  632. <span class="cstat-no" title="statement not covered" >  }</span>
    633. 

  633. &nbsp;
    634. 

  634.   /**
    635. 

  635.    * 上传 Buffer 到 OSS
    636. 

  636.    * @param buffer 文件 Buffer
    637. 

  637.    * @param objectKey OSS 对象键
    638. 

  638.    * @param contentType 内容类型
    639. 

  639.    * @returns OSS 文件 URL
    640. 

  640.    */
    641. 

  641. <span class="cstat-no" title="statement not covered" >  async uploadBuffer(buffer: Buffer, objectKey: string, contentType?: string): Promise&lt;string&gt; {</span>
    642. 

  642. <span class="cstat-no" title="statement not covered" >    try {</span>
    643. 

  643. <span class="cstat-no" title="statement not covered" >      const normalizedKey = objectKey.replace(/\\/g, '/').replace(/^\/+/, '');</span>
    644. 

  644.       
    645. 

  645. <span class="cstat-no" title="statement not covered" >      const result = await this.client.put(normalizedKey, buffer, {</span>
    646. 

  646. <span class="cstat-no" title="statement not covered" >        headers: {</span>
    647. 

  647. <span class="cstat-no" title="statement not covered" >          'Content-Type': contentType || this.getContentType(normalizedKey),</span>
    648. 

  648. <span class="cstat-no" title="statement not covered" >        },</span>
    649. 

  649. <span class="cstat-no" title="statement not covered" >      });</span>
    650. 

  650. &nbsp;
    651. 

  651. <span class="cstat-no" title="statement not covered" >      console.log(`[OSS] Buffer 上传成功: ${normalizedKey}`);</span>
    652. 

  652.       
    653. 

  653. <span class="cstat-no" title="statement not covered" >      return this.getFileUrl(normalizedKey);</span>
    654. 

  654. <span class="cstat-no" title="statement not covered" >    } catch (error) {</span>
    655. 

  655. <span class="cstat-no" title="statement not covered" >      console.error('[OSS] Buffer 上传失败:', error);</span>
    656. 

  656. <span class="cstat-no" title="statement not covered" >      throw new Error(`OSS Buffer 上传失败: ${(error as Error).message}`);</span>
    657. 

  657. <span class="cstat-no" title="statement not covered" >    }</span>
    658. 

  658. <span class="cstat-no" title="statement not covered" >  }</span>
    659. 

  659. &nbsp;
    660. 

  660.   /**
    661. 

  661.    * 上传音频文件
    662. 

  662.    * @param localPath 本地音频文件路径
    663. 

  663.    * @param audioId 音频 ID
    664. 

  664.    * @returns OSS 音频 URL
    665. 

  665.    */
    666. 

  666. <span class="cstat-no" title="statement not covered" >  async uploadAudio(localPath: string, audioId: string): Promise&lt;string&gt; {</span>
    667. 

  667. <span class="cstat-no" title="statement not covered" >    const objectKey = `audio/${audioId}/${path.basename(localPath)}`;</span>
    668. 

  668. <span class="cstat-no" title="statement not covered" >    return this.uploadFile(localPath, objectKey);</span>
    669. 

  669. <span class="cstat-no" title="statement not covered" >  }</span>
    670. 

  670. &nbsp;
    671. 

  671.   /**
    672. 

  672.    * 上传视频文件
    673. 

  673.    * @param localPath 本地视频文件路径
    674. 

  674.    * @param videoId 视频 ID
    675. 

  675.    * @returns OSS 视频 URL
    676. 

  676.    */
    677. 

  677. <span class="cstat-no" title="statement not covered" >  async uploadVideo(localPath: string, videoId: string): Promise&lt;string&gt; {</span>
    678. 

  678. <span class="cstat-no" title="statement not covered" >    const objectKey = `video/${videoId}/${path.basename(localPath)}`;</span>
    679. 

  679. <span class="cstat-no" title="statement not covered" >    return this.uploadFile(localPath, objectKey);</span>
    680. 

  680. <span class="cstat-no" title="statement not covered" >  }</span>
    681. 

  681. &nbsp;
    682. 

  682.   /**
    683. 

  683.    * 上传封面图片
    684. 

  684.    * @param localPath 本地图片路径
    685. 

  685.    * @param bookId 书籍 ID
    686. 

  686.    * @returns OSS 图片 URL
    687. 

  687.    */
    688. 

  688. <span class="cstat-no" title="statement not covered" >  async uploadCover(localPath: string, bookId: string | number): Promise&lt;string&gt; {</span>
    689. 

  689. <span class="cstat-no" title="statement not covered" >    const ext = path.extname(localPath);</span>
    690. 

  690. <span class="cstat-no" title="statement not covered" >    const objectKey = `cover/${bookId}/cover${ext}`;</span>
    691. 

  691. <span class="cstat-no" title="statement not covered" >    return this.uploadFile(localPath, objectKey);</span>
    692. 

  692. <span class="cstat-no" title="statement not covered" >  }</span>
    693. 

  693. &nbsp;
    694. 

  694.   /**
    695. 

  695.    * 删除文件
    696. 

  696.    * @param objectKey OSS 对象键
    697. 

  697.    */
    698. 

  698. <span class="cstat-no" title="statement not covered" >  async deleteFile(objectKey: string): Promise&lt;void&gt; {</span>
    699. 

  699. <span class="cstat-no" title="statement not covered" >    try {</span>
    700. 

  700. <span class="cstat-no" title="statement not covered" >      const normalizedKey = objectKey.replace(/\\/g, '/').replace(/^\/+/, '');</span>
    701. 

  701. <span class="cstat-no" title="statement not covered" >      await this.client.delete(normalizedKey);</span>
    702. 

  702. <span class="cstat-no" title="statement not covered" >      console.log(`[OSS] 文件删除成功: ${normalizedKey}`);</span>
    703. 

  703. <span class="cstat-no" title="statement not covered" >    } catch (error) {</span>
    704. 

  704. <span class="cstat-no" title="statement not covered" >      console.error('[OSS] 文件删除失败:', error);</span>
    705. 

  705. <span class="cstat-no" title="statement not covered" >      throw new Error(`OSS 删除失败: ${(error as Error).message}`);</span>
    706. 

  706. <span class="cstat-no" title="statement not covered" >    }</span>
    707. 

  707. <span class="cstat-no" title="statement not covered" >  }</span>
    708. 

  708. &nbsp;
    709. 

  709.   /**
    710. 

  710.    * 删除整个目录
    711. 

  711.    * @param prefix 目录前缀
    712. 

  712.    */
    713. 

  713. <span class="cstat-no" title="statement not covered" >  async deleteDirectory(prefix: string): Promise&lt;void&gt; {</span>
    714. 

  714. <span class="cstat-no" title="statement not covered" >    try {</span>
    715. 

  715. <span class="cstat-no" title="statement not covered" >      const normalizedPrefix = prefix.replace(/\\/g, '/').replace(/^\/+/, '').replace(/\/+$/, '') + '/';</span>
    716. 

  716.       
    717. 

  717.       // 列出目录下所有文件
    718. 

  718. <span class="cstat-no" title="statement not covered" >      const result = await this.client.list({</span>
    719. 

  719. <span class="cstat-no" title="statement not covered" >        prefix: normalizedPrefix,</span>
    720. 

  720. <span class="cstat-no" title="statement not covered" >        'max-keys': 1000,</span>
    721. 

  721. <span class="cstat-no" title="statement not covered" >      });</span>
    722. 

  722. &nbsp;
    723. 

  723.       // 批量删除
    724. 

  724. <span class="cstat-no" title="statement not covered" >      if (result.objects &amp;&amp; result.objects.length &gt; 0) {</span>
    725. 

  725. <span class="cstat-no" title="statement not covered" >        const keys = result.objects.map(obj =&gt; obj.name);</span>
    726. 

  726. <span class="cstat-no" title="statement not covered" >        await this.client.deleteMulti(keys);</span>
    727. 

  727. <span class="cstat-no" title="statement not covered" >        console.log(`[OSS] 目录删除成功: ${normalizedPrefix} (${keys.length} 个文件)`);</span>
    728. 

  728. <span class="cstat-no" title="statement not covered" >      }</span>
    729. 

  729. <span class="cstat-no" title="statement not covered" >    } catch (error) {</span>
    730. 

  730. <span class="cstat-no" title="statement not covered" >      console.error('[OSS] 目录删除失败:', error);</span>
    731. 

  731. <span class="cstat-no" title="statement not covered" >      throw new Error(`OSS 目录删除失败: ${(error as Error).message}`);</span>
    732. 

  732. <span class="cstat-no" title="statement not covered" >    }</span>
    733. 

  733. <span class="cstat-no" title="statement not covered" >  }</span>
    734. 

  734. &nbsp;
    735. 

  735.   /**
    736. 

  736.    * 获取文件签名 URL（用于私有 bucket）
    737. 

  737.    * @param objectKey OSS 对象键
    738. 

  738.    * @param expires 过期时间（秒），默认 3600 秒
    739. 

  739.    * @returns 签名 URL
    740. 

  740.    */
    741. 

  741. <span class="cstat-no" title="statement not covered" >  async getSignedUrl(objectKey: string, expires: number = 3600): Promise&lt;string&gt; {</span>
    742. 

  742. <span class="cstat-no" title="statement not covered" >    try {</span>
    743. 

  743. <span class="cstat-no" title="statement not covered" >      const normalizedKey = objectKey.replace(/\\/g, '/').replace(/^\/+/, '');</span>
    744. 

  744. <span class="cstat-no" title="statement not covered" >      const url = this.client.signatureUrl(normalizedKey, {</span>
    745. 

  745. <span class="cstat-no" title="statement not covered" >        expires,</span>
    746. 

  746. <span class="cstat-no" title="statement not covered" >      });</span>
    747. 

  747. <span class="cstat-no" title="statement not covered" >      return url;</span>
    748. 

  748. <span class="cstat-no" title="statement not covered" >    } catch (error) {</span>
    749. 

  749. <span class="cstat-no" title="statement not covered" >      console.error('[OSS] 获取签名 URL 失败:', error);</span>
    750. 

  750. <span class="cstat-no" title="statement not covered" >      throw new Error(`获取签名 URL 失败: ${(error as Error).message}`);</span>
    751. 

  751. <span class="cstat-no" title="statement not covered" >    }</span>
    752. 

  752. <span class="cstat-no" title="statement not covered" >  }</span>
    753. 

  753. &nbsp;
    754. 

  754.   /**
    755. 

  755.    * 下载文件
    756. 

  756.    * @param objectKey OSS 对象键
    757. 

  757.    * @returns 文件 Buffer
    758. 

  758.    */
    759. 

  759. <span class="cstat-no" title="statement not covered" >  async downloadFile(objectKey: string): Promise&lt;Buffer&gt; {</span>
    760. 

  760. <span class="cstat-no" title="statement not covered" >    try {</span>
    761. 

  761. <span class="cstat-no" title="statement not covered" >      const normalizedKey = objectKey.replace(/\\/g, '/').replace(/^\/+/, '');</span>
    762. 

  762. <span class="cstat-no" title="statement not covered" >      const result = await this.client.get(normalizedKey);</span>
    763. 

  763. <span class="cstat-no" title="statement not covered" >      return result.content;</span>
    764. 

  764. <span class="cstat-no" title="statement not covered" >    } catch (error) {</span>
    765. 

  765. <span class="cstat-no" title="statement not covered" >      console.error('[OSS] 文件下载失败:', error);</span>
    766. 

  766. <span class="cstat-no" title="statement not covered" >      throw new Error(`OSS 文件下载失败: ${(error as Error).message}`);</span>
    767. 

  767. <span class="cstat-no" title="statement not covered" >    }</span>
    768. 

  768. <span class="cstat-no" title="statement not covered" >  }</span>
    769. 

  769. &nbsp;
    770. 

  770.   /**
    771. 

  771.    * 获取文件 URL
    772. 

  772.    * @param objectKey OSS 对象键
    773. 

  773.    * @returns 文件 URL
    774. 

  774.    */
    775. 

  775. <span class="cstat-no" title="statement not covered" >  getFileUrl(objectKey: string): string {</span>
    776. 

  776. <span class="cstat-no" title="statement not covered" >    const normalizedKey = objectKey.replace(/\\/g, '/').replace(/^\/+/, '');</span>
    777. 

  777.     
    778. 

  778.     // 如果配置了 CDN 域名，使用 CDN
    779. 

  779. <span class="cstat-no" title="statement not covered" >    if (this.cdnDomain) {</span>
    780. 

  780. <span class="cstat-no" title="statement not covered" >      return `${this.cdnDomain}/${normalizedKey}`;</span>
    781. 

  781. <span class="cstat-no" title="statement not covered" >    }</span>
    782. 

  782.     
    783. 

  783.     // 否则使用 OSS 默认域名
    784. 

  784. <span class="cstat-no" title="statement not covered" >    return `https://${this.bucket}.${process.env.OSS_ENDPOINT}/${normalizedKey}`;</span>
    785. 

  785. <span class="cstat-no" title="statement not covered" >  }</span>
    786. 

  786. &nbsp;
    787. 

  787.   /**
    788. 

  788.    * 根据文件扩展名获取 Content-Type
    789. 

  789.    * @param filename 文件名
    790. 

  790.    * @returns Content-Type
    791. 

  791.    */
    792. 

  792. <span class="cstat-no" title="statement not covered" >  private getContentType(filename: string): string {</span>
    793. 

  793. <span class="cstat-no" title="statement not covered" >    const ext = path.extname(filename).toLowerCase();</span>
    794. 

  794. <span class="cstat-no" title="statement not covered" >    const contentTypes: Record&lt;string, string&gt; = {</span>
    795. 

  795. <span class="cstat-no" title="statement not covered" >      '.mp3': 'audio/mpeg',</span>
    796. 

  796. <span class="cstat-no" title="statement not covered" >      '.wav': 'audio/wav',</span>
    797. 

  797. <span class="cstat-no" title="statement not covered" >      '.aac': 'audio/aac',</span>
    798. 

  798. <span class="cstat-no" title="statement not covered" >      '.mp4': 'video/mp4',</span>
    799. 

  799. <span class="cstat-no" title="statement not covered" >      '.avi': 'video/avi',</span>
    800. 

  800. <span class="cstat-no" title="statement not covered" >      '.mov': 'video/quicktime',</span>
    801. 

  801. <span class="cstat-no" title="statement not covered" >      '.jpg': 'image/jpeg',</span>
    802. 

  802. <span class="cstat-no" title="statement not covered" >      '.jpeg': 'image/jpeg',</span>
    803. 

  803. <span class="cstat-no" title="statement not covered" >      '.png': 'image/png',</span>
    804. 

  804. <span class="cstat-no" title="statement not covered" >      '.gif': 'image/gif',</span>
    805. 

  805. <span class="cstat-no" title="statement not covered" >      '.webp': 'image/webp',</span>
    806. 

  806. <span class="cstat-no" title="statement not covered" >      '.json': 'application/json',</span>
    807. 

  807. <span class="cstat-no" title="statement not covered" >      '.txt': 'text/plain',</span>
    808. 

  808. <span class="cstat-no" title="statement not covered" >    };</span>
    809. 

  809.     
    810. 

  810. <span class="cstat-no" title="statement not covered" >    return contentTypes[ext] || 'application/octet-stream';</span>
    811. 

  811. <span class="cstat-no" title="statement not covered" >  }</span>
    812. 

  812. &nbsp;
    813. 

  813.   /**
    814. 

  814.    * 测试 OSS 连接
    815. 

  815.    */
    816. 

  816. <span class="cstat-no" title="statement not covered" >  async testConnection(): Promise&lt;boolean&gt; {</span>
    817. 

  817. <span class="cstat-no" title="statement not covered" >    try {</span>
    818. 

  818. <span class="cstat-no" title="statement not covered" >      await this.client.getBucketInfo(this.bucket);</span>
    819. 

  819. <span class="cstat-no" title="statement not covered" >      console.log('[OSS] 连接测试成功');</span>
    820. 

  820. <span class="cstat-no" title="statement not covered" >      return true;</span>
    821. 

  821. <span class="cstat-no" title="statement not covered" >    } catch (error) {</span>
    822. 

  822. <span class="cstat-no" title="statement not covered" >      console.error('[OSS] 连接测试失败:', error);</span>
    823. 

  823. <span class="cstat-no" title="statement not covered" >      return false;</span>
    824. 

  824. <span class="cstat-no" title="statement not covered" >    }</span>
    825. 

  825. <span class="cstat-no" title="statement not covered" >  }</span>
    826. 

  826. <span class="cstat-no" title="statement not covered" >}</span>
    827. 

  827. &nbsp;
    828. 

  828. // 导出单例
    829. 

  829. <span class="cstat-no" title="statement not covered" >export const ossService = new OSSService();</span>
    830. 

  830. <span class="cstat-no" title="statement not covered" >export default ossService;</span>
    831. 

  831. &nbsp;</pre></td></tr></table></pre>
    832. 

  832. 

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    834. 

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    836. 

  836.                 Code coverage generated by
    837. 

  837.                 <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
    838. 

  838.                 at 2026-05-19T14:27:48.313Z
    839. 

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    840. 

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    841. 

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