30 lines
1.0 KiB
JavaScript
30 lines
1.0 KiB
JavaScript
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import zlib from 'node:zlib';
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import { PonyfillTransformStream } from './TransformStream.js';
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import { getSupportedFormats } from './utils.js';
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export class PonyfillDecompressionStream extends PonyfillTransformStream {
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static supportedFormats = getSupportedFormats();
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constructor(compressionFormat) {
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switch (compressionFormat) {
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case 'x-gzip':
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case 'gzip':
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super(zlib.createGunzip());
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break;
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case 'x-deflate':
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case 'deflate':
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super(zlib.createInflate());
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break;
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case 'deflate-raw':
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super(zlib.createInflateRaw());
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break;
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case 'br':
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super(zlib.createBrotliDecompress());
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break;
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case 'zstd':
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super(zlib.createZstdDecompress());
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break;
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default:
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throw new TypeError(`Unsupported compression format: '${compressionFormat}'`);
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}
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}
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}
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