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Completely reimplimented in zig (eventually)
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/* Script for Proxy Auto Config in the new world order. - Gagan Saksena 04/24/00 */
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
const kDNS_CONTRACTID = "@mozilla.org/network/dns-service;1";
const nsISupports = Components.interfaces.nsISupports;const nsIProxyAutoConfig = Components.interfaces.nsIProxyAutoConfig;const nsIDNSService = Components.interfaces.nsIDNSService;
var dns;
// implementor of nsIProxyAutoConfigfunction nsProxyAutoConfig() { dns = Components.classes[kDNS_CONTRACTID].getService(nsIDNSService);};
nsProxyAutoConfig.prototype = { classID: Components.ID("63ac8c66-1dd2-11b2-b070-84d00d3eaece"),
// sandbox in which we eval loaded autoconfig js file _sandBox: null,
QueryInterface: XPCOMUtils.generateQI([nsIProxyAutoConfig]),
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); },
getProxyForURI: function(testURI, testHost) { if (!("FindProxyForURL" in this._sandBox)) return null;
// Call the original function try { var rval = this._sandBox.FindProxyForURL(testURI, testHost); } catch (e) { throw XPCSafeJSObjectWrapper(e); } return rval; }}
function proxyAlert(msg) { 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 filefunction myIpAddress() { try { return dns.resolve(dns.myHostName, 0).getNextAddrAsString(); } catch (e) { return '127.0.0.1'; }}
// wrapper for resolving hostnames called by PAC filefunction dnsResolve(host) { try { return dns.resolve(host, 0).getNextAddrAsString(); } catch (e) { return null; }}
NSGetFactory = XPCOMUtils.generateNSGetFactory([nsProxyAutoConfig]);
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 = {SUN: 0, MON: 1, TUE: 2, WED: 3, THU: 4, FRI: 5, SAT: 6};\n" +
"var months = {JAN: 0, FEB: 1, MAR: 2, APR: 3, MAY: 4, JUN: 5, JUL: 6, AUG: 7, SEP: 8, OCT: 9, NOV: 10, DEC: 11};\n"+
"function weekdayRange() {\n" +" function getDay(weekday) {\n" +" if (weekday in wdays) {\n" +" return wdays[weekday];\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" +" if (name in months) {\n" +" return months[name];\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"