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/**
* Module dependencies.
*/
var CookieJar = require('cookiejar').CookieJar;
var CookieAccess = require('cookiejar').CookieAccessInfo;
var parse = require('url').parse;
var request = require('../..');
var methods = require('methods');
/**
* Expose `Agent`.
*/
module.exports = Agent;
/**
* Initialize a new `Agent`.
*
* @api public
*/
function Agent(options) {
if (!(this instanceof Agent)) return new Agent(options);
if (options) {
this._ca = options.ca;
this._key = options.key;
this._pfx = options.pfx;
this._cert = options.cert;
}
this.jar = new CookieJar;
}
/**
* Save the cookies in the given `res` to
* the agent's cookie jar for persistence.
*
* @param {Response} res
* @api private
*/
Agent.prototype._saveCookies = function(res){
var cookies = res.headers['set-cookie'];
if (cookies) this.jar.setCookies(cookies);
};
/**
* Attach cookies when available to the given `req`.
*
* @param {Request} req
* @api private
*/
Agent.prototype._attachCookies = function(req){
var url = parse(req.url);
var access = CookieAccess(url.hostname, url.pathname, 'https:' == url.protocol);
var cookies = this.jar.getCookies(access).toValueString();
req.cookies = cookies;
};
// generate HTTP verb methods
if (methods.indexOf('del') == -1) {
// create a copy so we don't cause conflicts with
// other packages using the methods package and
// npm 3.x
methods = methods.slice(0);
methods.push('del');
}
methods.forEach(function(method){
var name = method;
method = 'del' == method ? 'delete' : method;
method = method.toUpperCase();
Agent.prototype[name] = function(url, fn){
var req = new request.Request(method, url);
req.ca(this._ca);
req.key(this._key);
req.pfx(this._pfx);
req.cert(this._cert);
req.on('response', this._saveCookies.bind(this));
req.on('redirect', this._saveCookies.bind(this));
req.on('redirect', this._attachCookies.bind(this, req));
this._attachCookies(req);
fn && req.end(fn);
return req;
};
});
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