zyf-server/dist/src/server/CompressionService.js

A modern HTTP static file server with Vue SSR directory listing, built for developers

"use strict";
/**
 * 压缩服务
 * 处理HTTP响应压缩
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.CompressionService = void 0;
const zlib_1 = require("zlib");
class CompressionService {
    /**
     * 检查请求是否支持压缩
     */
    isSupported(req) {
        const acceptEncoding = req.headers['accept-encoding'];
        return Boolean(acceptEncoding);
    }
    /**
     * 获取最佳压缩格式
     */
    getBestEncoding(req) {
        const acceptEncoding = req.headers['accept-encoding'] || '';
        if (acceptEncoding.includes('gzip')) {
            return "gzip" /* CompressionEncoding.GZIP */;
        }
        if (acceptEncoding.includes('deflate')) {
            return "deflate" /* CompressionEncoding.DEFLATE */;
        }
        return null;
    }
    /**
     * 创建压缩流
     */
    createCompressionStream(encoding) {
        switch (encoding) {
            case "gzip" /* CompressionEncoding.GZIP */:
                return (0, zlib_1.createGzip)();
            case "deflate" /* CompressionEncoding.DEFLATE */:
                return (0, zlib_1.createDeflate)();
            default:
                throw new Error(`Unsupported compression encoding: ${encoding}`);
        }
    }
}
exports.CompressionService = CompressionService;
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