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punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">||<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>encryptKey <span class=\"token operator\">&#061;<\/span> options<span class=\"token punctuation\">.<\/span>encryptKey<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ \u4ece\u672c\u5730\u5b58\u50a8\u52a0\u8f7d\u4e0a\u4f20\u8fdb\u5ea6<\/span><br \/>\n  <span class=\"token function\">loadProgress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> progress <span class=\"token operator\">&#061;<\/span> localStorage<span 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class=\"token function\">parse<\/span><span class=\"token punctuation\">(<\/span>progress<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ \u4fdd\u5b58\u4e0a\u4f20\u8fdb\u5ea6\u5230\u672c\u5730\u5b58\u50a8<\/span><br \/>\n  <span class=\"token function\">saveProgress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    localStorage<span class=\"token punctuation\">.<\/span><span class=\"token function\">setItem<\/span><span class=\"token punctuation\">(<\/span><br \/>\n      <span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token string\">upload_<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>file<span class=\"token punctuation\">.<\/span>name<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\">_progress<\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/span><span class=\"token punctuation\">,<\/span><br \/>\n      <span class=\"token constant\">JSON<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">stringify<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>uploadedChunks<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ \u52a0\u5bc6\u5207\u7247<\/span><br \/>\n  <span class=\"token keyword\">async<\/span> <span class=\"token function\">encryptChunk<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">chunk<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>encryptKey<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">return<\/span> chunk<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8fd9\u91cc\u4f7f\u7528Web Crypto API\u8fdb\u884c\u52a0\u5bc6<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5b9e\u9645\u9879\u76ee\u4e2d\u5e94\u8be5\u4f7f\u7528\u66f4\u5b89\u5168\u7684\u52a0\u5bc6\u65b9\u6848<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> encoder <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">TextEncoder<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> keyMaterial <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> window<span class=\"token punctuation\">.<\/span>crypto<span class=\"token punctuation\">.<\/span>subtle<span class=\"token punctuation\">.<\/span><span class=\"token function\">importKey<\/span><span class=\"token punctuation\">(<\/span><br \/>\n      <span class=\"token string\">&#039;raw&#039;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n      encoder<span class=\"token punctuation\">.<\/span><span class=\"token function\">encode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>encryptKey<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n      <span class=\"token punctuation\">{<\/span> <span class=\"token literal-property property\">name<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;AES-GCM&#039;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n      <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">,<\/span><br \/>\n      <span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;encrypt&#039;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">const<\/span> iv <span class=\"token operator\">&#061;<\/span> window<span class=\"token punctuation\">.<\/span>crypto<span class=\"token punctuation\">.<\/span><span class=\"token function\">getRandomValues<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Uint8Array<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">12<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> encrypted <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> window<span class=\"token punctuation\">.<\/span>crypto<span class=\"token punctuation\">.<\/span>subtle<span class=\"token punctuation\">.<\/span><span class=\"token function\">encrypt<\/span><span class=\"token punctuation\">(<\/span><br \/>\n      <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token literal-property property\">name<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;AES-GCM&#039;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token literal-property property\">iv<\/span><span class=\"token operator\">:<\/span> iv<br \/>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n      keyMaterial<span class=\"token punctuation\">,<\/span><br \/>\n      chunk<br \/>\n    <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span> iv<span class=\"token punctuation\">,<\/span> encrypted <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ \u4e0a\u4f20\u5355\u4e2a\u5207\u7247<\/span><br \/>\n  <span class=\"token keyword\">async<\/span> <span class=\"token function\">uploadChunk<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">chunkIndex<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> start <span class=\"token operator\">&#061;<\/span> chunkIndex <span class=\"token operator\">*<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>chunkSize<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> end <span class=\"token operator\">&#061;<\/span> Math<span class=\"token punctuation\">.<\/span><span class=\"token function\">min<\/span><span class=\"token punctuation\">(<\/span>start <span class=\"token operator\">&#043;<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>chunkSize<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>file<span class=\"token punctuation\">.<\/span>size<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> chunk <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>file<span class=\"token punctuation\">.<\/span><span class=\"token function\">slice<\/span><span class=\"token punctuation\">(<\/span>start<span class=\"token punctuation\">,<\/span> end<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u52a0\u5bc6\u5207\u7247<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> encrypted <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">encryptChunk<\/span><span class=\"token punctuation\">(<\/span>chunk<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">const<\/span> formData <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">FormData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    formData<span class=\"token punctuation\">.<\/span><span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;file&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Blob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span>encrypted<span class=\"token punctuation\">.<\/span>encrypted<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    formData<span class=\"token punctuation\">.<\/span><span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;chunkIndex&#039;<\/span><span class=\"token punctuation\">,<\/span> chunkIndex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    formData<span class=\"token punctuation\">.<\/span><span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;totalChunks&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>totalChunks<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    formData<span class=\"token punctuation\">.<\/span><span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;fileName&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>file<span class=\"token punctuation\">.<\/span>name<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    formData<span class=\"token punctuation\">.<\/span><span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;fileSize&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>file<span class=\"token punctuation\">.<\/span>size<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    formData<span class=\"token punctuation\">.<\/span><span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;iv&#039;<\/span><span class=\"token punctuation\">,<\/span> encrypted<span class=\"token punctuation\">.<\/span>iv<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token keyword\">const<\/span> response <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> <span class=\"token function\">fetch<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/upload.php&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token literal-property property\">method<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;POST&#039;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token literal-property property\">body<\/span><span class=\"token operator\">:<\/span> formData<br \/>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>      <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">.<\/span>ok<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>uploadedChunks<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>chunkIndex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">saveProgress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><br \/>\n      <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u4e0a\u4f20\u5931\u8d25:&#039;<\/span><span class=\"token punctuation\">,<\/span> error<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ \u5f00\u59cb\u4e0a\u4f20<\/span><br \/>\n  <span class=\"token keyword\">async<\/span> <span class=\"token function\">startUpload<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5148\u68c0\u67e5\u54ea\u4e9b\u5207\u7247\u5df2\u7ecf\u4e0a\u4f20\u8fc7<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> chunksToUpload <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">let<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>totalChunks<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>uploadedChunks<span class=\"token punctuation\">.<\/span><span class=\"token function\">includes<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        chunksToUpload<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4f9d\u6b21\u4e0a\u4f20\u672a\u5b8c\u6210\u7684\u5207\u7247<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> chunkIndex <span class=\"token keyword\">of<\/span> chunksToUpload<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token keyword\">const<\/span> success <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">uploadChunk<\/span><span class=\"token punctuation\">(<\/span>chunkIndex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>success<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token string\">\u5207\u7247 <\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>chunkIndex<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\"> \u4e0a\u4f20\u5931\u8d25<\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><br \/>\n      <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>currentChunk <span class=\"token operator\">&#061;<\/span> chunkIndex<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6240\u6709\u5207\u7247\u4e0a\u4f20\u5b8c\u6210&#xff0c;\u901a\u77e5\u540e\u7aef\u5408\u5e76\u6587\u4ef6<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>uploadedChunks<span class=\"token punctuation\">.<\/span>length <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>totalChunks<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token keyword\">await<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">mergeFiles<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      localStorage<span class=\"token punctuation\">.<\/span><span class=\"token function\">removeItem<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token string\">upload_<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>file<span class=\"token punctuation\">.<\/span>name<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\">_progress<\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ \u901a\u77e5\u540e\u7aef\u5408\u5e76\u6587\u4ef6<\/span><br \/>\n  <span class=\"token keyword\">async<\/span> <span class=\"token function\">mergeFiles<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token keyword\">const<\/span> response <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> <span class=\"token function\">fetch<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/merge.php&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token literal-property property\">method<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;POST&#039;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token literal-property property\">headers<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n          <span class=\"token string-property property\">&#039;Content-Type&#039;<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;application\/json&#039;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token literal-property property\">body<\/span><span class=\"token operator\">:<\/span> <span class=\"token constant\">JSON<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">stringify<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n          <span class=\"token literal-property property\">fileName<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>file<span class=\"token punctuation\">.<\/span>name<span class=\"token punctuation\">,<\/span><br \/>\n          <span class=\"token literal-property property\">totalChunks<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>totalChunks<span class=\"token punctuation\">,<\/span><br \/>\n          <span class=\"token literal-property property\">encryptKey<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>encryptKey<br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>      <span class=\"token keyword\">return<\/span> response<span class=\"token punctuation\">.<\/span>ok<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u5408\u5e76\u6587\u4ef6\u5931\u8d25:&#039;<\/span><span class=\"token punctuation\">,<\/span> error<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6587\u4ef6\u5939\u4e0a\u4f20\u5904\u7406<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">FolderUploader<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">constructor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>folderStructure <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ \u5904\u7406\u6587\u4ef6\u5939\u4e0a\u4f20<\/span><br \/>\n  <span class=\"token keyword\">async<\/span> <span class=\"token function\">uploadFolder<\/span><span class=\"token punctuation\">(<\/span>files<span class=\"token punctuation\">,<\/span> basePath <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> uploaders <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> file <span class=\"token keyword\">of<\/span> files<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token keyword\">const<\/span> relativePath <span class=\"token operator\">&#061;<\/span> file<span class=\"token punctuation\">.<\/span>webkitRelativePath <span class=\"token operator\">||<\/span> file<span class=\"token punctuation\">.<\/span>relativePath<span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token keyword\">const<\/span> filePath <span class=\"token operator\">&#061;<\/span> basePath <span class=\"token operator\">?<\/span> <span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>basePath<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\">\/<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>relativePath<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/span> <span class=\"token operator\">:<\/span> relativePath<span class=\"token punctuation\">;<\/span><\/p>\n<p>      <span class=\"token comment\">\/\/ \u4fdd\u5b58\u6587\u4ef6\u8def\u5f84\u7ed3\u6784<\/span><br \/>\n      <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>folderStructure<span class=\"token punctuation\">[<\/span>filePath<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> file<span class=\"token punctuation\">;<\/span><\/p>\n<p>      <span class=\"token comment\">\/\/ \u521b\u5efa\u5927\u6587\u4ef6\u4e0a\u4f20\u5b9e\u4f8b<\/span><br \/>\n      <span class=\"token keyword\">const<\/span> uploader <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">BigFileUploader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token literal-property property\">file<\/span><span class=\"token operator\">:<\/span> file<span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token literal-property property\">encryptKey<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;your-secret-key&#039;<\/span> <span class=\"token comment\">\/\/ \u5b9e\u9645\u9879\u76ee\u5e94\u8be5\u66f4\u5b89\u5168\u5730\u5904\u7406\u5bc6\u94a5<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>      uploaders<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>uploader<span class=\"token punctuation\">.<\/span><span class=\"token function\">startUpload<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u7b49\u5f85\u6240\u6709\u6587\u4ef6\u4e0a\u4f20\u5b8c\u6210<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> results <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> Promise<span class=\"token punctuation\">.<\/span><span class=\"token function\">all<\/span><span class=\"token punctuation\">(<\/span>uploaders<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> results<span class=\"token punctuation\">.<\/span><span class=\"token function\">every<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">success<\/span> <span class=\"token operator\">&#061;&gt;<\/span> success<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>\u540e\u7aef\u5b9e\u73b0 (PHP)<\/h4>\n<p> <span class=\"token string single-quoted-string\">&#039;\u7f3a\u5c11\u5fc5\u8981\u53c2\u6570&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u521b\u5efa\u4e0a\u4f20\u76ee\u5f55<\/span><br \/>\n<span class=\"token variable\">$uploadDir<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string single-quoted-string\">&#039;uploads\/&#039;<\/span> <span class=\"token operator\">.<\/span> <span class=\"token function\">md5<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$fileName<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token function\">is_dir<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$uploadDir<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">mkdir<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$uploadDir<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0777<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant boolean\">true<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4fdd\u5b58\u5207\u7247\u6587\u4ef6<\/span><br \/>\n<span class=\"token variable\">$chunkFile<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token variable\">$uploadDir<\/span> <span class=\"token operator\">.<\/span> <span class=\"token string single-quoted-string\">&#039;\/&#039;<\/span> <span class=\"token operator\">.<\/span> <span class=\"token variable\">$fileName<\/span> <span class=\"token operator\">.<\/span> <span class=\"token string single-quoted-string\">&#039;.part&#039;<\/span> <span class=\"token operator\">.<\/span> <span class=\"token variable\">$chunkIndex<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">move_uploaded_file<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$_FILES<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;file&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;tmp_name&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token variable\">$chunkFile<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4fdd\u5b58\u5207\u7247\u5143\u6570\u636e<\/span><br \/>\n<span class=\"token variable\">$metaFile<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token variable\">$uploadDir<\/span> <span class=\"token operator\">.<\/span> <span class=\"token string single-quoted-string\">&#039;\/meta.json&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token variable\">$metaData<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">file_exists<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$metaFile<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">?<\/span> <span class=\"token function\">json_decode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">file_get_contents<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$metaFile<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token variable\">$metaData<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;chunks&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token variable\">$chunkIndex<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token variable\">$metaData<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;fileName&#039;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token variable\">$fileName<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token variable\">$metaData<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;fileSize&#039;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token variable\">$fileSize<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token variable\">$metaData<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;totalChunks&#039;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token variable\">$totalChunks<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token variable\">$metaData<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;iv&#039;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token variable\">$iv<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4fdd\u5b58\u521d\u59cb\u5316\u5411\u91cf\u7528\u4e8e\u89e3\u5bc6<\/span><\/p>\n<p><span class=\"token function\">file_put_contents<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$metaFile<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">json_encode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$metaData<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">echo<\/span> <span class=\"token function\">json_encode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;success&#039;<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token constant boolean\">true<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token operator\">?<\/span><span class=\"token operator\">&gt;<\/span><\/p>\n<p> <span class=\"token string single-quoted-string\">&#039;\u7f3a\u5c11\u5fc5\u8981\u53c2\u6570&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token variable\">$uploadDir<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string single-quoted-string\">&#039;uploads\/&#039;<\/span> <span class=\"token operator\">.<\/span> <span class=\"token function\">md5<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$fileName<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token variable\">$metaFile<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token variable\">$uploadDir<\/span> <span class=\"token operator\">.<\/span> <span class=\"token string single-quoted-string\">&#039;\/meta.json&#039;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token function\">file_exists<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$metaFile<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">http_response_code<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">404<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">die<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">json_encode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;error&#039;<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token string single-quoted-string\">&#039;\u627e\u4e0d\u5230\u4e0a\u4f20\u8bb0\u5f55&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token variable\">$metaData<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">json_decode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">file_get_contents<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$metaFile<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant boolean\">true<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u68c0\u67e5\u662f\u5426\u6240\u6709\u5207\u7247\u90fd\u5df2\u4e0a\u4f20<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">count<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$metaData<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;chunks&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;&#061;<\/span> <span class=\"token variable\">$totalChunks<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">http_response_code<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">400<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">die<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">json_encode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;error&#039;<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token string single-quoted-string\">&#039;\u5207\u7247\u4e0d\u5b8c\u6574&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u521b\u5efa\u6700\u7ec8\u6587\u4ef6<\/span><br \/>\n<span class=\"token variable\">$finalPath<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string single-quoted-string\">&#039;uploads\/&#039;<\/span> <span class=\"token operator\">.<\/span> <span class=\"token function\">basename<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$fileName<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token variable\">$finalFile<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fopen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$finalPath<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string single-quoted-string\">&#039;wb&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6309\u987a\u5e8f\u5408\u5e76\u6240\u6709\u5207\u7247<\/span><br \/>\n<span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token variable\">$i<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token variable\">$i<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token variable\">$totalChunks<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token variable\">$i<\/span><span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token variable\">$chunkFile<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token variable\">$uploadDir<\/span> <span class=\"token operator\">.<\/span> <span class=\"token string single-quoted-string\">&#039;\/&#039;<\/span> <span class=\"token operator\">.<\/span> <span class=\"token variable\">$fileName<\/span> <span class=\"token operator\">.<\/span> <span class=\"token string single-quoted-string\">&#039;.part&#039;<\/span> <span class=\"token operator\">.<\/span> <span class=\"token variable\">$i<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token variable\">$chunkData<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">file_get_contents<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$chunkFile<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5982\u679c\u6709\u52a0\u5bc6\u5bc6\u94a5&#xff0c;\u5219\u89e3\u5bc6\u6570\u636e<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token variable\">$encryptKey<\/span> <span class=\"token operator\">&amp;&amp;<\/span> <span class=\"token keyword\">isset<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$metaData<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;iv&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u8fd9\u91cc\u5e94\u8be5\u5b9e\u73b0\u89e3\u5bc6\u903b\u8f91<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5b9e\u9645\u9879\u76ee\u4e2d\u5e94\u8be5\u4f7f\u7528\u66f4\u5b89\u5168\u7684\u89e3\u5bc6\u65b9\u6848<\/span><br \/>\n        <span class=\"token variable\">$chunkData<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token variable\">$this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">decryptChunk<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$chunkData<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token variable\">$encryptKey<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token variable\">$metaData<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;iv&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token function\">fwrite<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$finalFile<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token variable\">$chunkData<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">unlink<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$chunkFile<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5220\u9664\u5207\u7247\u6587\u4ef6<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token function\">fclose<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$finalFile<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">unlink<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$metaFile<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5220\u9664\u5143\u6570\u636e\u6587\u4ef6<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5982\u679c\u9700\u8981\u5b58\u50a8\u5230\u963f\u91cc\u4e91OSS<\/span><br \/>\n<span class=\"token variable\">$this<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">uploadToOSS<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$finalPath<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">echo<\/span> <span class=\"token function\">json_encode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string single-quoted-string\">&#039;success&#039;<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token constant boolean\">true<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string single-quoted-string\">&#039;path&#039;<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token variable\">$finalPath<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">decryptChunk<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$encryptedData<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token variable\">$key<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token variable\">$iv<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8fd9\u91cc\u5b9e\u73b0\u89e3\u5bc6\u903b\u8f91<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5b9e\u9645\u9879\u76ee\u4e2d\u5e94\u8be5\u4f7f\u7528\u66f4\u5b89\u5168\u7684\u5b9e\u73b0<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token variable\">$encryptedData<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u7b80\u5316\u793a\u4f8b<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">function<\/span> <span class=\"token function-definition function\">uploadToOSS<\/span><span class=\"token punctuation\">(<\/span><span class=\"token variable\">$filePath<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5b9e\u73b0\u963f\u91cc\u4e91OSS\u4e0a\u4f20\u903b\u8f91<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token operator\">?<\/span><span class=\"token operator\">&gt;<\/span><\/p>\n<h3>\u652f\u6301IE8\u7684\u517c\u5bb9\u65b9\u6848<\/h3>\n<p><span class=\"token comment\">\/\/ IE8\u517c\u5bb9\u6027\u5904\u7406<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>window<span class=\"token punctuation\">.<\/span>localStorage<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  window<span class=\"token punctuation\">.<\/span>localStorage <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token literal-property property\">_data<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token function-variable function\">setItem<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">function<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">id<span class=\"token punctuation\">,<\/span> val<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>_data<span class=\"token punctuation\">[<\/span>id<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">String<\/span><span class=\"token punctuation\">(<\/span>val<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token comment\">\/\/ \u4f7f\u7528cookie\u4f5c\u4e3afallback<\/span><br \/>\n      document<span class=\"token punctuation\">.<\/span>cookie <span class=\"token operator\">&#061;<\/span> id <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;&#061;&#034;<\/span> <span 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