94 lines
2.4 KiB
JavaScript
94 lines
2.4 KiB
JavaScript
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'use strict';
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var sni = require('sni');
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var hello = require('fs').readFileSync('./sni.hello.bin');
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var version = 1;
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var header = 'IPv4,127.0.1.1,443,' + hello.byteLength;
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var buf = Buffer.concat([
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Buffer.from([ 255 - version, header.length ])
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, Buffer.from(header)
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, hello
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]);
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var services = { 'ssh': 22, 'http': 4080, 'https': 8443 };
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var clients = {};
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var count = 0;
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var machine = require('./').create({
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onMessage: function (opts) {
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var id = opts.family + ',' + opts.address + ',' + opts.port;
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var service = 'https';
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var port = services[service];
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var servername = sni(opts.data);
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console.log('');
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console.log('[onMessage]');
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if (!opts.data.equals(hello)) {
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throw new Error("'data' packet is not equal to original 'hello' packet");
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}
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console.log('all', opts.data.byteLength, 'bytes are equal');
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console.log('src:', opts.family, opts.address + ':' + opts.port);
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console.log('dst:', 'IPv4 127.0.0.1:' + port);
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if (!clients[id]) {
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clients[id] = true;
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if (!servername) {
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throw new Error("no servername found for '" + id + "'");
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}
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console.log("servername: '" + servername + "'");
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}
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count += 1;
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}
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});
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console.log('');
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// full message in one go
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// 223 = 2 + 22 + 199
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console.log('[WHOLE BUFFER]', 2, header.length, hello.length, buf.byteLength);
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clients = {};
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machine.fns.addChunk(buf);
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console.log('');
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// messages one byte at a time
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console.log('[BYTE-BY-BYTE BUFFER]', 1);
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clients = {};
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buf.forEach(function (byte) {
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machine.fns.addChunk(Buffer.from([ byte ]));
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});
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console.log('');
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// split messages in overlapping thirds
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// 0-2 (2)
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// 2-24 (22)
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// 24-223 (199)
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// 223-225 (2)
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// 225-247 (22)
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// 247-446 (199)
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buf = Buffer.concat([ buf, buf ]);
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console.log('[OVERLAPPING BUFFERS]', buf.length);
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clients = {};
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[ buf.slice(0, 7) // version + header
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, buf.slice(7, 14) // header
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, buf.slice(14, 21) // header
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, buf.slice(21, 28) // header + body
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, buf.slice(28, 217) // body
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, buf.slice(217, 224) // body + version
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, buf.slice(224, 238) // version + header
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, buf.slice(238, buf.byteLength) // header + body
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].forEach(function (buf) {
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machine.fns.addChunk(Buffer.from(buf));
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});
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console.log('');
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process.on('exit', function () {
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if (count !== 4) {
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throw new Error("should have delivered 4 messages, not", count);
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}
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console.log('TESTS PASS');
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console.log('');
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});
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