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/*!
* connect-timeout
* Copyright(c) 2014 Jonathan Ong
* Copyright(c) 2014 Douglas Christopher Wilson
* MIT Licensed
*/
/**
* Module dependencies.
*/
var createError = require('http-errors');
var debug = require('debug')('connect:timeout');
var ms = require('ms');
var onHeaders = require('on-headers');
/**
* Timeout:
*
* See README.md for documentation.
*
* @param {Number} time
* @param {Object} options
* @return {Function} middleware
* @api public
*/
module.exports = function timeout(time, options) {
options = options || {};
time = typeof time === 'string'
? ms(time)
: Number(time || 5000);
var respond = !('respond' in options) || options.respond === true;
return function(req, res, next) {
var destroy = req.socket.destroy;
var id = setTimeout(function(){
req.timedout = true;
req.emit('timeout', time);
}, time);
if (respond) {
req.on('timeout', onTimeout(time, next));
}
req.clearTimeout = function(){
clearTimeout(id);
};
req.socket.destroy = function(){
clearTimeout(id);
destroy.call(this);
};
req.timedout = false;
onHeaders(res, function(){
clearTimeout(id);
});
next();
};
};
function onTimeout(time, cb){
return function(){
cb(createError(503, 'Response timeout', {
code: 'ETIMEDOUT',
timeout: time
}));
};
}
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