mirror of
https://github.com/danbulant/koa-plugins
synced 2026-05-19 20:28:36 +00:00
44 lines
1.1 KiB
JavaScript
44 lines
1.1 KiB
JavaScript
'use strict';
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var stringifyPair = function(key, value){
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value = String(value);
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var bufKey = new Buffer(key);
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var bufValue = new Buffer(value);
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var bufHead = null;
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var keyLen = bufKey.length;
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var valueLen = bufValue.length;
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if(keyLen > 127 && valueLen > 127) {
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bufHead = new Buffer(8);
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bufHead.writeInt32BE(keyLen | 0x80000000, 0, true);
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bufHead.writeInt32BE(valueLen | 0x80000000, 4, true);
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} else if(keyLen > 127) {
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bufHead = new Buffer(5);
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bufHead.writeInt32BE(keyLen | 0x80000000, 0, true);
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bufHead.writeUInt8(valueLen, 4, true);
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} else if(valueLen > 127) {
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bufHead = new Buffer(5);
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bufHead.writeUInt8(keyLen, 0, true);
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bufHead.writeInt32BE(valueLen | 0x80000000, 1, true);
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} else {
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bufHead = new Buffer(2);
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bufHead.writeUInt8(keyLen, 0, true);
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bufHead.writeUInt8(valueLen, 1, true);
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}
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return [
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bufHead,
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bufKey,
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bufValue,
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bufHead.length + keyLen + valueLen
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];
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};
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module.exports = function(kv){
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var bufs = [];
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var bufsLen = 0;
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for(var k in kv) {
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var bs = stringifyPair(k, kv[k]);
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bufs.push(bs[0], bs[1], bs[2]);
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bufsLen += bs[3];
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}
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return Buffer.concat(bufs, bufsLen);
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};
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