d3/test/XMLHttpRequest.js at time-bst · blehman/d3

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var fs = require("fs");

global.XMLHttpRequest = function XMLHttpRequest() {

var self = this,

info = self._info = {},

headers = {},

url;

// TODO handle file system errors?

self.open = function(m, u, a) {

info.url = u;

info.async = a;

self.send = a ? read : readSync;

};

self.setRequestHeader = function(n, v) {

if (/^Accept$/i.test(n)) info.mimeType = v.split(/,/g)[0];

};

function read() {

fs.readFile(info.url, "binary", function(e, d) {

if (e) {

self.status = 404; // assumed

} else {

self.status = 200;

self.responseText = d;

self.responseXML = {_xml: d};

headers["Content-Length"] = d.length;

}

self.readyState = 4;

XMLHttpRequest._last = self;

if (self.onreadystatechange) self.onreadystatechange();

});

}

function readSync() {

try {

var d = fs.readFileSync(info.url, "binary");

self.status = 200;

self.responseText = d;

self.responseXML = {_xml: d};

headers["Content-Length"] = d.length;

} catch (e) {

self.status = 404; // assumed

}

self.readyState = 4;

XMLHttpRequest._last = self;

if (self.onreadystatechange) self.onreadystatechange();

}

self.getResponseHeader = function(n) {

return headers[n];

};

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