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nsProxyAutoConfig.js
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/* -*- Mode: Java; tab-width: 4; c-basic-offset: 4; -*- */
/* vim:set ts=4 sw=4 sts=4 et: */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Akhil Arora <akhil.arora@sun.com>
* Tomi Leppikangas <Tomi.Leppikangas@oulu.fi>
* Darin Fisher <darin@meer.net>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
Script for Proxy Auto Config in the new world order.
- Gagan Saksena 04/24/00
*/
const kDNS_CONTRACTID = "@mozilla.org/network/dns-service;1";
const kPAC_CONTRACTID = "@mozilla.org/network/proxy-auto-config;1";
const kPAC_CID = Components.ID("{63ac8c66-1dd2-11b2-b070-84d00d3eaece}");
const nsISupports = Components.interfaces.nsISupports;
const nsIProxyAutoConfig = Components.interfaces.nsIProxyAutoConfig;
const nsIDNSService = Components.interfaces.nsIDNSService;
// implementor of nsIProxyAutoConfig
function nsProxyAutoConfig() {};
nsProxyAutoConfig.prototype = {
// sandbox in which we eval loaded autoconfig js file
_sandBox: null,
QueryInterface: function(iid) {
if (iid.Equals(nsIProxyAutoConfig) ||
iid.Equals(nsISupports))
return this;
throw Components.results.NS_ERROR_NO_INTERFACE;
},
init: function(pacURI, pacText) {
// remove PAC configuration if requested
if (pacURI == "" || pacText == "") {
this._sandBox = null;
return;
}
// allocate a fresh Sandbox to clear global scope for new PAC script
this._sandBox = new Components.utils.Sandbox(pacURI);
Components.utils.evalInSandbox(pacUtils, this._sandBox);
// add predefined functions to pac
this._sandBox.importFunction(myIpAddress);
this._sandBox.importFunction(dnsResolve);
this._sandBox.importFunction(proxyAlert, "alert");
// evaluate loaded js file
Components.utils.evalInSandbox(pacText, this._sandBox);
// We can no longer trust this._sandBox. Touching it directly can
// cause all sorts of pain, so wrap it in an XPCSafeJSObjectWrapper
// and do all of our work through there.
this._sandBox = new XPCSafeJSObjectWrapper(this._sandBox);
},
getProxyForURI: function(testURI, testHost) {
if (!("FindProxyForURL" in this._sandBox))
return null;
// Call the original function
var rval = this._sandBox.FindProxyForURL(testURI, testHost);
return rval;
}
}
function proxyAlert(msg) {
// Ensure that we have a string.
if (typeof msg != "string")
msg = new XPCSafeJSObjectWrapper(msg).toString();
try {
// It would appear that the console service is threadsafe.
var cns = Components.classes["@mozilla.org/consoleservice;1"]
.getService(Components.interfaces.nsIConsoleService);
cns.logStringMessage("PAC-alert: "+msg);
} catch (e) {
dump("PAC: proxyAlert ERROR: "+e+"\n");
}
}
// wrapper for getting local IP address called by PAC file
function myIpAddress() {
try {
return dns.resolve(dns.myHostName, 0).getNextAddrAsString();
} catch (e) {
return '127.0.0.1';
}
}
// wrapper for resolving hostnames called by PAC file
function dnsResolve(host) {
if (typeof host != "string")
host = new XPCSafeJSObjectWrapper(host).toString();
try {
return dns.resolve(host, 0).getNextAddrAsString();
} catch (e) {
return null;
}
}
var pacModule = new Object();
pacModule.registerSelf =
function (compMgr, fileSpec, location, type) {
compMgr = compMgr.QueryInterface(Components.interfaces.nsIComponentRegistrar);
compMgr.registerFactoryLocation(kPAC_CID,
"nsProxyAutoConfig",
kPAC_CONTRACTID,
fileSpec,
location,
type);
}
pacModule.getClassObject =
function (compMgr, cid, iid) {
if (!cid.equals(kPAC_CID))
throw Components.results.NS_ERROR_NO_INTERFACE;
if (!iid.equals(Components.interfaces.nsIFactory))
throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
return pacFactory;
}
pacModule.canUnload =
function (compMgr) {
return true;
}
var pacFactory = new Object();
pacFactory.createInstance =
function (outer, iid) {
if (outer != null)
throw Components.results.NS_ERROR_NO_AGGREGATION;
if (!iid.equals(nsIProxyAutoConfig) &&
!iid.equals(Components.interfaces.nsISupports)) {
throw Components.results.NS_ERROR_NO_INTERFACE;
}
return pac;
}
function NSGetModule(compMgr, fileSpec) {
return pacModule;
}
var pac = new nsProxyAutoConfig() ;
var dns = Components.classes[kDNS_CONTRACTID].getService(nsIDNSService);
var pacUtils =
"function dnsDomainIs(host, domain) {\n" +
" return (host.length >= domain.length &&\n" +
" host.substring(host.length - domain.length) == domain);\n" +
"}\n" +
"function dnsDomainLevels(host) {\n" +
" return host.split('.').length-1;\n" +
"}\n" +
"function convert_addr(ipchars) {\n"+
" var bytes = ipchars.split('.');\n"+
" var result = ((bytes[0] & 0xff) << 24) |\n"+
" ((bytes[1] & 0xff) << 16) |\n"+
" ((bytes[2] & 0xff) << 8) |\n"+
" (bytes[3] & 0xff);\n"+
" return result;\n"+
"}\n"+
"function isInNet(ipaddr, pattern, maskstr) {\n"+
" var test = /^(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})$/(ipaddr);\n"+
" if (test == null) {\n"+
" ipaddr = dnsResolve(ipaddr);\n"+
" if (ipaddr == null)\n"+
" return false;\n"+
" } else if (test[1] > 255 || test[2] > 255 || \n"+
" test[3] > 255 || test[4] > 255) {\n"+
" return false; // not an IP address\n"+
" }\n"+
" var host = convert_addr(ipaddr);\n"+
" var pat = convert_addr(pattern);\n"+
" var mask = convert_addr(maskstr);\n"+
" return ((host & mask) == (pat & mask));\n"+
" \n"+
"}\n"+
"function isPlainHostName(host) {\n" +
" return (host.search('\\\\.') == -1);\n" +
"}\n" +
"function isResolvable(host) {\n" +
" var ip = dnsResolve(host);\n" +
" return (ip != null);\n" +
"}\n" +
"function localHostOrDomainIs(host, hostdom) {\n" +
" return (host == hostdom) ||\n" +
" (hostdom.lastIndexOf(host + '.', 0) == 0);\n" +
"}\n" +
"function shExpMatch(url, pattern) {\n" +
" pattern = pattern.replace(/\\./g, '\\\\.');\n" +
" pattern = pattern.replace(/\\*/g, '.*');\n" +
" pattern = pattern.replace(/\\?/g, '.');\n" +
" var newRe = new RegExp('^'+pattern+'$');\n" +
" return newRe.test(url);\n" +
"}\n" +
"var wdays = new Array('SUN', 'MON', 'TUE', 'WED', 'THU', 'FRI', 'SAT');\n" +
"var monthes = new Array('JAN', 'FEB', 'MAR', 'APR', 'MAY', 'JUN', 'JUL', 'AUG', 'SEP', 'OCT', 'NOV', 'DEC');\n"+
"function weekdayRange() {\n" +
" function getDay(weekday) {\n" +
" for (var i = 0; i < 6; i++) {\n" +
" if (weekday == wdays[i]) \n" +
" return i;\n" +
" }\n" +
" return -1;\n" +
" }\n" +
" var date = new Date();\n" +
" var argc = arguments.length;\n" +
" var wday;\n" +
" if (argc < 1)\n" +
" return false;\n" +
" if (arguments[argc - 1] == 'GMT') {\n" +
" argc--;\n" +
" wday = date.getUTCDay();\n" +
" } else {\n" +
" wday = date.getDay();\n" +
" }\n" +
" var wd1 = getDay(arguments[0]);\n" +
" var wd2 = (argc == 2) ? getDay(arguments[1]) : wd1;\n" +
" return (wd1 == -1 || wd2 == -1) ? false\n" +
" : (wd1 <= wday && wday <= wd2);\n" +
"}\n" +
"function dateRange() {\n" +
" function getMonth(name) {\n" +
" for (var i = 0; i < 6; i++) {\n" +
" if (name == monthes[i])\n" +
" return i;\n" +
" }\n" +
" return -1;\n" +
" }\n" +
" var date = new Date();\n" +
" var argc = arguments.length;\n" +
" if (argc < 1) {\n" +
" return false;\n" +
" }\n" +
" var isGMT = (arguments[argc - 1] == 'GMT');\n" +
"\n" +
" if (isGMT) {\n" +
" argc--;\n" +
" }\n" +
" // function will work even without explict handling of this case\n" +
" if (argc == 1) {\n" +
" var tmp = parseInt(arguments[0]);\n" +
" if (isNaN(tmp)) {\n" +
" return ((isGMT ? date.getUTCMonth() : date.getMonth()) ==\n" +
"getMonth(arguments[0]));\n" +
" } else if (tmp < 32) {\n" +
" return ((isGMT ? date.getUTCDate() : date.getDate()) == tmp);\n" +
" } else { \n" +
" return ((isGMT ? date.getUTCFullYear() : date.getFullYear()) ==\n" +
"tmp);\n" +
" }\n" +
" }\n" +
" var year = date.getFullYear();\n" +
" var date1, date2;\n" +
" date1 = new Date(year, 0, 1, 0, 0, 0);\n" +
" date2 = new Date(year, 11, 31, 23, 59, 59);\n" +
" var adjustMonth = false;\n" +
" for (var i = 0; i < (argc >> 1); i++) {\n" +
" var tmp = parseInt(arguments[i]);\n" +
" if (isNaN(tmp)) {\n" +
" var mon = getMonth(arguments[i]);\n" +
" date1.setMonth(mon);\n" +
" } else if (tmp < 32) {\n" +
" adjustMonth = (argc <= 2);\n" +
" date1.setDate(tmp);\n" +
" } else {\n" +
" date1.setFullYear(tmp);\n" +
" }\n" +
" }\n" +
" for (var i = (argc >> 1); i < argc; i++) {\n" +
" var tmp = parseInt(arguments[i]);\n" +
" if (isNaN(tmp)) {\n" +
" var mon = getMonth(arguments[i]);\n" +
" date2.setMonth(mon);\n" +
" } else if (tmp < 32) {\n" +
" date2.setDate(tmp);\n" +
" } else {\n" +
" date2.setFullYear(tmp);\n" +
" }\n" +
" }\n" +
" if (adjustMonth) {\n" +
" date1.setMonth(date.getMonth());\n" +
" date2.setMonth(date.getMonth());\n" +
" }\n" +
" if (isGMT) {\n" +
" var tmp = date;\n" +
" tmp.setFullYear(date.getUTCFullYear());\n" +
" tmp.setMonth(date.getUTCMonth());\n" +
" tmp.setDate(date.getUTCDate());\n" +
" tmp.setHours(date.getUTCHours());\n" +
" tmp.setMinutes(date.getUTCMinutes());\n" +
" tmp.setSeconds(date.getUTCSeconds());\n" +
" date = tmp;\n" +
" }\n" +
" return ((date1 <= date) && (date <= date2));\n" +
"}\n" +
"function timeRange() {\n" +
" var argc = arguments.length;\n" +
" var date = new Date();\n" +
" var isGMT= false;\n"+
"\n" +
" if (argc < 1) {\n" +
" return false;\n" +
" }\n" +
" if (arguments[argc - 1] == 'GMT') {\n" +
" isGMT = true;\n" +
" argc--;\n" +
" }\n" +
"\n" +
" var hour = isGMT ? date.getUTCHours() : date.getHours();\n" +
" var date1, date2;\n" +
" date1 = new Date();\n" +
" date2 = new Date();\n" +
"\n" +
" if (argc == 1) {\n" +
" return (hour == arguments[0]);\n" +
" } else if (argc == 2) {\n" +
" return ((arguments[0] <= hour) && (hour <= arguments[1]));\n" +
" } else {\n" +
" switch (argc) {\n" +
" case 6:\n" +
" date1.setSeconds(arguments[2]);\n" +
" date2.setSeconds(arguments[5]);\n" +
" case 4:\n" +
" var middle = argc >> 1;\n" +
" date1.setHours(arguments[0]);\n" +
" date1.setMinutes(arguments[1]);\n" +
" date2.setHours(arguments[middle]);\n" +
" date2.setMinutes(arguments[middle + 1]);\n" +
" if (middle == 2) {\n" +
" date2.setSeconds(59);\n" +
" }\n" +
" break;\n" +
" default:\n" +
" throw 'timeRange: bad number of arguments'\n" +
" }\n" +
" }\n" +
"\n" +
" if (isGMT) {\n" +
" date.setFullYear(date.getUTCFullYear());\n" +
" date.setMonth(date.getUTCMonth());\n" +
" date.setDate(date.getUTCDate());\n" +
" date.setHours(date.getUTCHours());\n" +
" date.setMinutes(date.getUTCMinutes());\n" +
" date.setSeconds(date.getUTCSeconds());\n" +
" }\n" +
" return ((date1 <= date) && (date <= date2));\n" +
"}\n"