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120 lines
3.9 KiB
JavaScript
120 lines
3.9 KiB
JavaScript
// Copyright (c) 2009 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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function Download(url, path, verbose) {
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if (verbose) {
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WScript.StdOut.Write(" * GET " + url + "...");
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}
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try {
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xml_http = new ActiveXObject("MSXML2.ServerXMLHTTP");
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} catch (e) {
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WScript.StdOut.WriteLine("[-] XMLHTTP " + new Number(e.number).toHex() +
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": Cannot create Active-X object (" + e.description) + ").";
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WScript.Quit(1);
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}
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try {
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xml_http.open("GET", url, false);
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} catch (e) {
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WScript.StdOut.WriteLine("[-] XMLHTTP " + new Number(e.number).toHex() +
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": invalid URL.");
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WScript.Quit(1);
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}
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var response_body = null;
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var size_description = "?";
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var file_size;
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try {
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xml_http.send(null);
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if (xml_http.status != 200) {
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WScript.StdOut.WriteLine("[-] HTTP " + xml_http.status + " " +
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xml_http.statusText);
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WScript.Quit(1);
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}
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response_body = xml_http.responseBody;
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size_description = xml_http.getResponseHeader("Content-Length");
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if (size_description != "") {
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file_size = parseInt(size_description)
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size_description = file_size.toBytes();
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} else {
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try {
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file_size = new Number(xml_http.responseText.length)
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size_description = file_size.toBytes();
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} catch(e) {
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size_description = "unknown size";
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}
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}
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} catch (e) {
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WScript.StdOut.WriteLine("[-] XMLHTTP " + new Number(e.number).toHex() +
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": Cannot make HTTP request (" + e.description) + ")";
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WScript.Quit(1);
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}
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if (verbose) {
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WScript.StdOut.WriteLine("ok (" + size_description + ").");
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WScript.StdOut.Write(" * Save " + path + "...");
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}
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try {
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var adodb_stream = new ActiveXObject("ADODB.Stream");
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adodb_stream.Mode = 3; // ReadWrite
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adodb_stream.Type = 1; // 1= Binary
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adodb_stream.Open(); // Open the stream
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adodb_stream.Write(response_body); // Write the data
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adodb_stream.SaveToFile(path, 2); // Save to our destination
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adodb_stream.Close();
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} catch(e) {
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WScript.StdOut.WriteLine(
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"[-] ADODB.Stream " + new Number(e.number).toHex() +
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": Cannot save file to " + path + ": " + e.description);
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WScript.Quit(1);
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}
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if (typeof(file_size) != undefined) {
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var file_system_object = WScript.CreateObject("Scripting.FileSystemObject")
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var file = file_system_object.GetFile(path)
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if (file.Size < file_size) {
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WScript.StdOut.WriteLine("[-] File only partially downloaded.");
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WScript.Quit(1);
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}
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}
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if (verbose) {
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WScript.StdOut.WriteLine("ok.");
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}
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}
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// Utilities
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Number.prototype.isInt = function NumberIsInt() {
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return this % 1 == 0;
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};
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Number.prototype.toBytes = function NumberToBytes() {
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// Returns a "pretty" string representation of a number of bytes:
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var units = ["KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];
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var unit = "bytes";
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var limit = 1;
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while(this > limit * 1100 && units.length > 0) {
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limit *= 1024;
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unit = units.shift();
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}
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return (Math.round(this * 100 / limit) / 100).toString() + " " + unit;
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};
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Number.prototype.toHex = function NumberToHex(length) {
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if (arguments.length == 0) length = 1;
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if (typeof(length) != "number" && !(length instanceof Number)) {
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throw Exception("Length must be a positive integer larger than 0.",
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TypeError, 0);
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}
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if (length < 1 || !length.isInt()) {
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throw Exception("Length must be a positive integer larger than 0.",
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"RangeError", 0);
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}
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var result = (this + (this < 0 ? 0x100000000 : 0)).toString(16);
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while (result.length < length) result = "0" + result;
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return result;
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};
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if (WScript.Arguments.length != 2) {
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WScript.StdOut.Write("Incorrect arguments to get_file.js")
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} else {
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Download(WScript.Arguments(0), WScript.Arguments(1), false);
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}
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