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// Copyright (c) 2011 The Native Client Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
function Download(url, path, verbose) {
if (verbose) {
WScript.StdOut.Write(" * GET " + url + "...");
}
try {
xml_http = new ActiveXObject("MSXML2.ServerXMLHTTP");
} catch (e) {
WScript.StdOut.WriteLine("[-] XMLHTTP " + new Number(e.number).toHex() +
": Cannot create Active-X object (" + e.description) + ").";
WScript.Quit(1);
}
try {
xml_http.open("GET", url, false);
} catch (e) {
WScript.StdOut.WriteLine("[-] XMLHTTP " + new Number(e.number).toHex() +
": invalid URL.");
WScript.Quit(1);
}
var response_body = null;
var size_description = "?";
var file_size;
try {
xml_http.send(null);
if (xml_http.status != 200) {
WScript.StdOut.WriteLine("[-] HTTP " + xml_http.status + " " +
xml_http.statusText);
WScript.Quit(1);
}
response_body = xml_http.responseBody;
size_description = xml_http.getResponseHeader("Content-Length");
if (size_description != "") {
file_size = parseInt(size_description)
size_description = file_size.toBytes();
} else {
try {
file_size = new Number(xml_http.responseText.length)
size_description = file_size.toBytes();
} catch(e) {
size_description = "unknown size";
}
}
} catch (e) {
WScript.StdOut.WriteLine("[-] XMLHTTP " + new Number(e.number).toHex() +
": Cannot make HTTP request (" + e.description) + ")";
WScript.Quit(1);
}
if (verbose) {
WScript.StdOut.WriteLine("ok (" + size_description + ").");
WScript.StdOut.Write(" * Save " + path + "...");
}
try {
var adodb_stream = new ActiveXObject("ADODB.Stream");
adodb_stream.Mode = 3; // ReadWrite
adodb_stream.Type = 1; // 1= Binary
adodb_stream.Open(); // Open the stream
adodb_stream.Write(response_body); // Write the data
adodb_stream.SaveToFile(path, 2); // Save to our destination
adodb_stream.Close();
} catch(e) {
WScript.StdOut.WriteLine("[-] ADODB.Stream " + new Number(
e.number).toHex() + ": Cannot save file (" + e.description + ")");
WScript.Quit(1);
}
if (typeof(file_size) != undefined) {
var file_system_object = WScript.CreateObject("Scripting.FileSystemObject")
var file = file_system_object.GetFile(path)
if (file.Size < file_size) {
WScript.StdOut.WriteLine("[-] File only partially downloaded.");
WScript.Quit(1);
}
}
if (verbose) {
WScript.StdOut.WriteLine("ok.");
}
}
// Utilities
Number.prototype.isInt = function NumberIsInt() {
return this % 1 == 0;
};
Number.prototype.toBytes = function NumberToBytes() {
// Returns a "pretty" string representation of a number of bytes:
var units = ["KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];
var unit = "bytes"
var limit = 1;
while(this > limit * 1100 && units.length > 0) {
limit *= 1024;
unit = units.shift();
}
return (Math.round(this * 100 / limit) / 100).toString() + " " + unit;
};
Number.prototype.toHex = function NumberToHex(length) {
if (arguments.length == 0) length = 1;
if (typeof(length) != "number" && !(length instanceof Number)) {
throw Exception("Length must be a positive integer larger than 0.",
TypeError, 0);
}
if (length < 1 || !length.isInt()) {
throw Exception("Length must be a positive integer larger than 0.",
"RangeError", 0);
}
var result = (this + (this < 0 ? 0x100000000 : 0)).toString(16);
while (result.length < length) result = "0" + result;
return result;
};
if (WScript.Arguments.length != 2) {
WScript.StdOut.Write("Incorrect arguments to get_file.js")
} else {
Download(WScript.Arguments(0), WScript.Arguments(1), false);
}
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