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"use strict"; |
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Object.defineProperty(exports, "__esModule", { value: true }); |
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exports.WebTransport = void 0; |
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const transport_1 = require("../transport"); |
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const debug_1 = require("debug"); |
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const engine_io_parser_1 = require("engine.io-parser"); |
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const debug = (0, debug_1.default)("engine:webtransport"); |
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class WebTransport extends transport_1.Transport { |
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constructor(session, stream, reader) { |
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super({ _query: { EIO: "4" } }); |
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this.session = session; |
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const transformStream = (0, engine_io_parser_1.createPacketEncoderStream)(); |
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transformStream.readable.pipeTo(stream.writable).catch(() => { |
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debug("the stream was closed"); |
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}); |
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this.writer = transformStream.writable.getWriter(); |
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(async () => { |
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try { |
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while (true) { |
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const { value, done } = await reader.read(); |
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if (done) { |
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debug("session is closed"); |
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break; |
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} |
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debug("received chunk: %o", value); |
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this.onPacket(value); |
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} |
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} |
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catch (e) { |
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debug("error while reading: %s", e.message); |
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} |
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})(); |
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session.closed.then(() => this.onClose()); |
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this.writable = true; |
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} |
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get name() { |
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return "webtransport"; |
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} |
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get supportsFraming() { |
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return true; |
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} |
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async send(packets) { |
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this.writable = false; |
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try { |
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for (let i = 0; i < packets.length; i++) { |
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const packet = packets[i]; |
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await this.writer.write(packet); |
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} |
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} |
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catch (e) { |
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debug("error while writing: %s", e.message); |
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} |
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this.writable = true; |
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this.emit("drain"); |
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} |
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doClose(fn) { |
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debug("closing WebTransport session"); |
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this.session.close(); |
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fn && fn(); |
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} |
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} |
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exports.WebTransport = WebTransport; |
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