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Fix avoid apps from retaining references to the upgrade head and large s... #4660

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Fix avoid apps from retaining references to the upgrade head and large s... #4660

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8 changes: 6 additions & 2 deletions lib/http.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1484,7 +1484,9 @@ function socketOnData(d, start, end) {
parser.finish();

// This is start + byteParsed
var bodyHead = d.slice(start + bytesParsed, end);
//Apps that hang on to bodyHead can lead to large slab buffer retention
var bodyHead = new Buffer(end - start - bytesParsed);
d.copy(bodyHead,0,start + bytesParsed, end);

var eventName = req.method === 'CONNECT' ? 'connect' : 'upgrade';
if (req.listeners(eventName).length) {
Expand Down Expand Up @@ -1834,7 +1836,9 @@ function connectionListener(socket) {
freeParser(parser, req);

// This is start + byteParsed
var bodyHead = d.slice(start + bytesParsed, end);
//Apps that hang on to bodyHead can lead to large slab buffer retention
var bodyHead = new Buffer(end - start - bytesParsed);
d.copy(bodyHead,0,start + bytesParsed, end);

var eventName = req.method === 'CONNECT' ? 'connect' : 'upgrade';
if (self.listeners(eventName).length) {
Expand Down