flying-hero
96f6318101
新增: - backend/venv/ - Python 虚拟环境 - backend/start.sh - 启动脚本（使用虚拟环境） - backend/requirements.txt - 依赖列表 - .gitignore - 忽略虚拟环境和缓存文件 说明: - 每个项目使用独立虚拟环境 - 避免依赖冲突 - 启动脚本自动创建和激活虚拟环境
54 lines
1.3 KiB
JavaScript
54 lines
1.3 KiB
JavaScript
'use strict';
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import AxiosError from '../core/AxiosError.js';
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import parseProtocol from './parseProtocol.js';
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import platform from '../platform/index.js';
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const DATA_URL_PATTERN = /^(?:([^;]+);)?(?:[^;]+;)?(base64|),([\s\S]*)$/;
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/**
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* Parse data uri to a Buffer or Blob
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*
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* @param {String} uri
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* @param {?Boolean} asBlob
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* @param {?Object} options
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* @param {?Function} options.Blob
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*
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* @returns {Buffer|Blob}
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*/
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export default function fromDataURI(uri, asBlob, options) {
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const _Blob = (options && options.Blob) || platform.classes.Blob;
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const protocol = parseProtocol(uri);
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if (asBlob === undefined && _Blob) {
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asBlob = true;
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}
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if (protocol === 'data') {
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uri = protocol.length ? uri.slice(protocol.length + 1) : uri;
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const match = DATA_URL_PATTERN.exec(uri);
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if (!match) {
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throw new AxiosError('Invalid URL', AxiosError.ERR_INVALID_URL);
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}
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const mime = match[1];
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const isBase64 = match[2];
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const body = match[3];
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const buffer = Buffer.from(decodeURIComponent(body), isBase64 ? 'base64' : 'utf8');
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if (asBlob) {
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if (!_Blob) {
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throw new AxiosError('Blob is not supported', AxiosError.ERR_NOT_SUPPORT);
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}
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return new _Blob([buffer], { type: mime });
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}
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return buffer;
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}
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throw new AxiosError('Unsupported protocol ' + protocol, AxiosError.ERR_NOT_SUPPORT);
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}
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