36 lines
1.1 KiB
JavaScript
36 lines
1.1 KiB
JavaScript
import { strFromU8, strToU8, unzlibSync, zlibSync } from 'fflate/browser';
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/**
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* Encode and compress data
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*
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* 编码和压缩数据
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*
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* @param data - Data to encode / 要编码的数据
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* @param level - Compression level / 压缩级别
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*
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* @returns Base64 encoded compressed data / Base64 编码的压缩数据
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*/
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export const encodeData = (data, level = 6) => {
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const buffer = strToU8(data);
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// zlib headers can be found at https://stackoverflow.com/a/54915442
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const zipped = zlibSync(buffer, { level });
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const binary = strFromU8(zipped, true);
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return __VUEPRESS_SSR__
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? Buffer.from(binary, 'binary').toString('base64')
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: btoa(binary);
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};
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/**
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* Decode and unzip data
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*
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* 解码和解压数据
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*
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* @param base64 - Base64 encoded data / Base64 编码的数据
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*
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* @returns Decoded string / 解码后的字符串
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*/
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export const decodeData = (base64) => {
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const binary = __VUEPRESS_SSR__
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? Buffer.from(base64, 'base64').toString('binary')
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: atob(base64);
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return strFromU8(unzlibSync(strToU8(binary, true)));
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};
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