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@@ -1,620 +0,0 @@
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-/**
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- * Wrapper for built-in http.js to emulate the browser XMLHttpRequest object.
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- *
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- * This can be used with JS designed for browsers to improve reuse of code and
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- * allow the use of existing libraries.
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- *
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- * Usage: include("XMLHttpRequest.js") and use XMLHttpRequest per W3C specs.
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- *
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- * @author Dan DeFelippi <dan@driverdan.com>
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- * @contributor David Ellis <d.f.ellis@ieee.org>
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- * @license MIT
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- */
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-
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-var Url = require("url");
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-var spawn = require("child_process").spawn;
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-var fs = require("fs");
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-
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-exports.XMLHttpRequest = function() {
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- "use strict";
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-
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- /**
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- * Private variables
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- */
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- var self = this;
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- var http = require("http");
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- var https = require("https");
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-
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- // Holds http.js objects
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- var request;
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- var response;
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-
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- // Request settings
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- var settings = {};
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-
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- // Disable header blacklist.
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- // Not part of XHR specs.
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- var disableHeaderCheck = false;
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-
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- // Set some default headers
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- var defaultHeaders = {
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- "User-Agent": "node-XMLHttpRequest",
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- "Accept": "*/*",
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- };
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-
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- var headers = {};
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- var headersCase = {};
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-
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- // These headers are not user setable.
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- // The following are allowed but banned in the spec:
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- // * user-agent
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- var forbiddenRequestHeaders = [
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- "accept-charset",
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- "accept-encoding",
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- "access-control-request-headers",
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- "access-control-request-method",
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- "connection",
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- "content-length",
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- "content-transfer-encoding",
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- "cookie",
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- "cookie2",
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- "date",
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- "expect",
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- "host",
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- "keep-alive",
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- "origin",
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- "referer",
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- "te",
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- "trailer",
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- "transfer-encoding",
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- "upgrade",
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- "via"
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- ];
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-
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- // These request methods are not allowed
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- var forbiddenRequestMethods = [
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- "TRACE",
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- "TRACK",
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- "CONNECT"
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- ];
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-
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- // Send flag
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- var sendFlag = false;
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- // Error flag, used when errors occur or abort is called
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- var errorFlag = false;
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-
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- // Event listeners
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- var listeners = {};
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-
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- /**
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- * Constants
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- */
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-
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- this.UNSENT = 0;
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- this.OPENED = 1;
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- this.HEADERS_RECEIVED = 2;
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- this.LOADING = 3;
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- this.DONE = 4;
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-
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- /**
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- * Public vars
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- */
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-
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- // Current state
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- this.readyState = this.UNSENT;
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-
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- // default ready state change handler in case one is not set or is set late
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- this.onreadystatechange = null;
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-
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- // Result & response
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- this.responseText = "";
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- this.responseXML = "";
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- this.status = null;
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- this.statusText = null;
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-
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- // Whether cross-site Access-Control requests should be made using
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- // credentials such as cookies or authorization headers
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- this.withCredentials = false;
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-
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- /**
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- * Private methods
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- */
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-
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- /**
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- * Check if the specified header is allowed.
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- *
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- * @param string header Header to validate
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- * @return boolean False if not allowed, otherwise true
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- */
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- var isAllowedHttpHeader = function(header) {
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- return disableHeaderCheck || (header && forbiddenRequestHeaders.indexOf(header.toLowerCase()) === -1);
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- };
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-
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- /**
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- * Check if the specified method is allowed.
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- *
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- * @param string method Request method to validate
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- * @return boolean False if not allowed, otherwise true
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- */
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- var isAllowedHttpMethod = function(method) {
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- return (method && forbiddenRequestMethods.indexOf(method) === -1);
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- };
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-
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- /**
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- * Public methods
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- */
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-
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- /**
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- * Open the connection. Currently supports local server requests.
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- *
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- * @param string method Connection method (eg GET, POST)
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- * @param string url URL for the connection.
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- * @param boolean async Asynchronous connection. Default is true.
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- * @param string user Username for basic authentication (optional)
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- * @param string password Password for basic authentication (optional)
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- */
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- this.open = function(method, url, async, user, password) {
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- this.abort();
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- errorFlag = false;
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-
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- // Check for valid request method
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- if (!isAllowedHttpMethod(method)) {
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- throw new Error("SecurityError: Request method not allowed");
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- }
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-
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- settings = {
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- "method": method,
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- "url": url.toString(),
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- "async": (typeof async !== "boolean" ? true : async),
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- "user": user || null,
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- "password": password || null
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- };
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-
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- setState(this.OPENED);
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- };
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-
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- /**
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- * Disables or enables isAllowedHttpHeader() check the request. Enabled by default.
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- * This does not conform to the W3C spec.
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- *
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- * @param boolean state Enable or disable header checking.
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- */
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- this.setDisableHeaderCheck = function(state) {
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- disableHeaderCheck = state;
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- };
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-
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- /**
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- * Sets a header for the request or appends the value if one is already set.
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- *
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- * @param string header Header name
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- * @param string value Header value
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- */
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- this.setRequestHeader = function(header, value) {
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- if (this.readyState !== this.OPENED) {
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- throw new Error("INVALID_STATE_ERR: setRequestHeader can only be called when state is OPEN");
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- }
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- if (!isAllowedHttpHeader(header)) {
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- console.warn("Refused to set unsafe header \"" + header + "\"");
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- return;
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- }
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- if (sendFlag) {
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- throw new Error("INVALID_STATE_ERR: send flag is true");
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- }
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- header = headersCase[header.toLowerCase()] || header;
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- headersCase[header.toLowerCase()] = header;
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- headers[header] = headers[header] ? headers[header] + ', ' + value : value;
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- };
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-
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- /**
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- * Gets a header from the server response.
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- *
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- * @param string header Name of header to get.
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- * @return string Text of the header or null if it doesn't exist.
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- */
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- this.getResponseHeader = function(header) {
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- if (typeof header === "string"
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- && this.readyState > this.OPENED
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- && response
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- && response.headers
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- && response.headers[header.toLowerCase()]
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- && !errorFlag
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- ) {
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- return response.headers[header.toLowerCase()];
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- }
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-
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- return null;
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- };
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-
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- /**
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- * Gets all the response headers.
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- *
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- * @return string A string with all response headers separated by CR+LF
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- */
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- this.getAllResponseHeaders = function() {
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- if (this.readyState < this.HEADERS_RECEIVED || errorFlag) {
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- return "";
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- }
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- var result = "";
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-
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- for (var i in response.headers) {
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- // Cookie headers are excluded
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- if (i !== "set-cookie" && i !== "set-cookie2") {
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- result += i + ": " + response.headers[i] + "\r\n";
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- }
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- }
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- return result.substr(0, result.length - 2);
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- };
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-
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- /**
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- * Gets a request header
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- *
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- * @param string name Name of header to get
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- * @return string Returns the request header or empty string if not set
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- */
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- this.getRequestHeader = function(name) {
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- if (typeof name === "string" && headersCase[name.toLowerCase()]) {
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- return headers[headersCase[name.toLowerCase()]];
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- }
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-
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- return "";
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- };
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-
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- /**
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- * Sends the request to the server.
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- *
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- * @param string data Optional data to send as request body.
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- */
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- this.send = function(data) {
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- if (this.readyState !== this.OPENED) {
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- throw new Error("INVALID_STATE_ERR: connection must be opened before send() is called");
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- }
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-
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- if (sendFlag) {
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- throw new Error("INVALID_STATE_ERR: send has already been called");
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- }
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-
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- var ssl = false, local = false;
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- var url = Url.parse(settings.url);
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- var host;
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- // Determine the server
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- switch (url.protocol) {
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- case "https:":
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- ssl = true;
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- // SSL & non-SSL both need host, no break here.
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- case "http:":
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- host = url.hostname;
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- break;
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-
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- case "file:":
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- local = true;
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- break;
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-
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- case undefined:
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- case null:
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- case "":
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- host = "localhost";
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- break;
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-
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- default:
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- throw new Error("Protocol not supported.");
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- }
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-
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- // Load files off the local filesystem (file://)
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- if (local) {
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- if (settings.method !== "GET") {
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- throw new Error("XMLHttpRequest: Only GET method is supported");
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- }
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-
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- if (settings.async) {
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- fs.readFile(url.pathname, "utf8", function(error, data) {
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- if (error) {
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- self.handleError(error);
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- } else {
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- self.status = 200;
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- self.responseText = data;
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- setState(self.DONE);
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- }
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- });
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- } else {
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- try {
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- this.responseText = fs.readFileSync(url.pathname, "utf8");
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- this.status = 200;
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- setState(self.DONE);
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- } catch(e) {
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- this.handleError(e);
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- }
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- }
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-
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- return;
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- }
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-
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- // Default to port 80. If accessing localhost on another port be sure
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- // to use http://localhost:port/path
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- var port = url.port || (ssl ? 443 : 80);
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- // Add query string if one is used
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- var uri = url.pathname + (url.search ? url.search : "");
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-
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- // Set the defaults if they haven't been set
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- for (var name in defaultHeaders) {
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- if (!headersCase[name.toLowerCase()]) {
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- headers[name] = defaultHeaders[name];
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- }
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- }
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-
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- // Set the Host header or the server may reject the request
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- headers.Host = host;
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- if (!((ssl && port === 443) || port === 80)) {
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- headers.Host += ":" + url.port;
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- }
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-
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- // Set Basic Auth if necessary
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- if (settings.user) {
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- if (typeof settings.password === "undefined") {
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- settings.password = "";
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- }
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- var authBuf = new Buffer(settings.user + ":" + settings.password);
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- headers.Authorization = "Basic " + authBuf.toString("base64");
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- }
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-
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- // Set content length header
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- if (settings.method === "GET" || settings.method === "HEAD") {
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- data = null;
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- } else if (data) {
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- headers["Content-Length"] = Buffer.isBuffer(data) ? data.length : Buffer.byteLength(data);
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-
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- if (!headers["Content-Type"]) {
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- headers["Content-Type"] = "text/plain;charset=UTF-8";
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- }
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- } else if (settings.method === "POST") {
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- // For a post with no data set Content-Length: 0.
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- // This is required by buggy servers that don't meet the specs.
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- headers["Content-Length"] = 0;
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- }
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-
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- var options = {
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- host: host,
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- port: port,
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- path: uri,
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- method: settings.method,
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- headers: headers,
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- agent: false,
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- withCredentials: self.withCredentials
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- };
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-
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- // Reset error flag
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- errorFlag = false;
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-
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- // Handle async requests
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- if (settings.async) {
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- // Use the proper protocol
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- var doRequest = ssl ? https.request : http.request;
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-
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- // Request is being sent, set send flag
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- sendFlag = true;
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-
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- // As per spec, this is called here for historical reasons.
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- self.dispatchEvent("readystatechange");
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-
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- // Handler for the response
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- var responseHandler = function responseHandler(resp) {
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- // Set response var to the response we got back
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- // This is so it remains accessable outside this scope
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- response = resp;
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- // Check for redirect
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- // @TODO Prevent looped redirects
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- if (response.statusCode === 301 || response.statusCode === 302 || response.statusCode === 303 || response.statusCode === 307) {
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- // Change URL to the redirect location
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- settings.url = response.headers.location;
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- var url = Url.parse(settings.url);
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- // Set host var in case it's used later
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- host = url.hostname;
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- // Options for the new request
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- var newOptions = {
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- hostname: url.hostname,
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- port: url.port,
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- path: url.path,
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- method: response.statusCode === 303 ? "GET" : settings.method,
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- headers: headers,
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- withCredentials: self.withCredentials
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- };
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-
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- // Issue the new request
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- request = doRequest(newOptions, responseHandler).on("error", errorHandler);
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- request.end();
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- // @TODO Check if an XHR event needs to be fired here
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- return;
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- }
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-
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- response.setEncoding("utf8");
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-
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- setState(self.HEADERS_RECEIVED);
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- self.status = response.statusCode;
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-
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- response.on("data", function(chunk) {
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- // Make sure there's some data
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- if (chunk) {
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- self.responseText += chunk;
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- }
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- // Don't emit state changes if the connection has been aborted.
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- if (sendFlag) {
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- setState(self.LOADING);
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- }
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- });
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-
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- response.on("end", function() {
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- if (sendFlag) {
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- // Discard the end event if the connection has been aborted
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- setState(self.DONE);
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- sendFlag = false;
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- }
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- });
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-
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- response.on("error", function(error) {
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- self.handleError(error);
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- });
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|
- };
|
|
|
-
|
|
|
- // Error handler for the request
|
|
|
- var errorHandler = function errorHandler(error) {
|
|
|
- self.handleError(error);
|
|
|
- };
|
|
|
-
|
|
|
- // Create the request
|
|
|
- request = doRequest(options, responseHandler).on("error", errorHandler);
|
|
|
-
|
|
|
- // Node 0.4 and later won't accept empty data. Make sure it's needed.
|
|
|
- if (data) {
|
|
|
- request.write(data);
|
|
|
- }
|
|
|
-
|
|
|
- request.end();
|
|
|
-
|
|
|
- self.dispatchEvent("loadstart");
|
|
|
- } else { // Synchronous
|
|
|
- // Create a temporary file for communication with the other Node process
|
|
|
- var contentFile = ".node-xmlhttprequest-content-" + process.pid;
|
|
|
- var syncFile = ".node-xmlhttprequest-sync-" + process.pid;
|
|
|
- fs.writeFileSync(syncFile, "", "utf8");
|
|
|
- // The async request the other Node process executes
|
|
|
- var execString = "var http = require('http'), https = require('https'), fs = require('fs');"
|
|
|
- + "var doRequest = http" + (ssl ? "s" : "") + ".request;"
|
|
|
- + "var options = " + JSON.stringify(options) + ";"
|
|
|
- + "var responseText = '';"
|
|
|
- + "var req = doRequest(options, function(response) {"
|
|
|
- + "response.setEncoding('utf8');"
|
|
|
- + "response.on('data', function(chunk) {"
|
|
|
- + " responseText += chunk;"
|
|
|
- + "});"
|
|
|
- + "response.on('end', function() {"
|
|
|
- + "fs.writeFileSync('" + contentFile + "', JSON.stringify({err: null, data: {statusCode: response.statusCode, headers: response.headers, text: responseText}}), 'utf8');"
|
|
|
- + "fs.unlinkSync('" + syncFile + "');"
|
|
|
- + "});"
|
|
|
- + "response.on('error', function(error) {"
|
|
|
- + "fs.writeFileSync('" + contentFile + "', JSON.stringify({err: error}), 'utf8');"
|
|
|
- + "fs.unlinkSync('" + syncFile + "');"
|
|
|
- + "});"
|
|
|
- + "}).on('error', function(error) {"
|
|
|
- + "fs.writeFileSync('" + contentFile + "', JSON.stringify({err: error}), 'utf8');"
|
|
|
- + "fs.unlinkSync('" + syncFile + "');"
|
|
|
- + "});"
|
|
|
- + (data ? "req.write('" + JSON.stringify(data).slice(1,-1).replace(/'/g, "\\'") + "');":"")
|
|
|
- + "req.end();";
|
|
|
- // Start the other Node Process, executing this string
|
|
|
- var syncProc = spawn(process.argv[0], ["-e", execString]);
|
|
|
- while(fs.existsSync(syncFile)) {
|
|
|
- // Wait while the sync file is empty
|
|
|
- }
|
|
|
- var resp = JSON.parse(fs.readFileSync(contentFile, 'utf8'));
|
|
|
- // Kill the child process once the file has data
|
|
|
- syncProc.stdin.end();
|
|
|
- // Remove the temporary file
|
|
|
- fs.unlinkSync(contentFile);
|
|
|
-
|
|
|
- if (resp.err) {
|
|
|
- self.handleError(resp.err);
|
|
|
- } else {
|
|
|
- response = resp.data;
|
|
|
- self.status = resp.data.statusCode;
|
|
|
- self.responseText = resp.data.text;
|
|
|
- setState(self.DONE);
|
|
|
- }
|
|
|
- }
|
|
|
- };
|
|
|
-
|
|
|
- /**
|
|
|
- * Called when an error is encountered to deal with it.
|
|
|
- */
|
|
|
- this.handleError = function(error) {
|
|
|
- this.status = 0;
|
|
|
- this.statusText = error;
|
|
|
- this.responseText = error.stack;
|
|
|
- errorFlag = true;
|
|
|
- setState(this.DONE);
|
|
|
- this.dispatchEvent('error');
|
|
|
- };
|
|
|
-
|
|
|
- /**
|
|
|
- * Aborts a request.
|
|
|
- */
|
|
|
- this.abort = function() {
|
|
|
- if (request) {
|
|
|
- request.abort();
|
|
|
- request = null;
|
|
|
- }
|
|
|
-
|
|
|
- headers = defaultHeaders;
|
|
|
- this.status = 0;
|
|
|
- this.responseText = "";
|
|
|
- this.responseXML = "";
|
|
|
-
|
|
|
- errorFlag = true;
|
|
|
-
|
|
|
- if (this.readyState !== this.UNSENT
|
|
|
- && (this.readyState !== this.OPENED || sendFlag)
|
|
|
- && this.readyState !== this.DONE) {
|
|
|
- sendFlag = false;
|
|
|
- setState(this.DONE);
|
|
|
- }
|
|
|
- this.readyState = this.UNSENT;
|
|
|
- this.dispatchEvent('abort');
|
|
|
- };
|
|
|
-
|
|
|
- /**
|
|
|
- * Adds an event listener. Preferred method of binding to events.
|
|
|
- */
|
|
|
- this.addEventListener = function(event, callback) {
|
|
|
- if (!(event in listeners)) {
|
|
|
- listeners[event] = [];
|
|
|
- }
|
|
|
- // Currently allows duplicate callbacks. Should it?
|
|
|
- listeners[event].push(callback);
|
|
|
- };
|
|
|
-
|
|
|
- /**
|
|
|
- * Remove an event callback that has already been bound.
|
|
|
- * Only works on the matching funciton, cannot be a copy.
|
|
|
- */
|
|
|
- this.removeEventListener = function(event, callback) {
|
|
|
- if (event in listeners) {
|
|
|
- // Filter will return a new array with the callback removed
|
|
|
- listeners[event] = listeners[event].filter(function(ev) {
|
|
|
- return ev !== callback;
|
|
|
- });
|
|
|
- }
|
|
|
- };
|
|
|
-
|
|
|
- /**
|
|
|
- * Dispatch any events, including both "on" methods and events attached using addEventListener.
|
|
|
- */
|
|
|
- this.dispatchEvent = function(event) {
|
|
|
- if (typeof self["on" + event] === "function") {
|
|
|
- self["on" + event]();
|
|
|
- }
|
|
|
- if (event in listeners) {
|
|
|
- for (var i = 0, len = listeners[event].length; i < len; i++) {
|
|
|
- listeners[event][i].call(self);
|
|
|
- }
|
|
|
- }
|
|
|
- };
|
|
|
-
|
|
|
- /**
|
|
|
- * Changes readyState and calls onreadystatechange.
|
|
|
- *
|
|
|
- * @param int state New state
|
|
|
- */
|
|
|
- var setState = function(state) {
|
|
|
- if (state == self.LOADING || self.readyState !== state) {
|
|
|
- self.readyState = state;
|
|
|
-
|
|
|
- if (settings.async || self.readyState < self.OPENED || self.readyState === self.DONE) {
|
|
|
- self.dispatchEvent("readystatechange");
|
|
|
- }
|
|
|
-
|
|
|
- if (self.readyState === self.DONE && !errorFlag) {
|
|
|
- self.dispatchEvent("load");
|
|
|
- // @TODO figure out InspectorInstrumentation::didLoadXHR(cookie)
|
|
|
- self.dispatchEvent("loadend");
|
|
|
- }
|
|
|
- }
|
|
|
- };
|
|
|
-};
|