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· sniffer.js ·
1// JavaScript Browser Sniffer // Eric Krok, Andy King, Michel Plungjan Jan. 31, 2002 // see http://www.webreference.com/ for more information // 5// This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // 10// please send any improvements to nxvat at vagrearg.pbz and we'll // roll the best ones in // // adapted from Netscape's Ultimate client-side JavaScript client sniffer // and andy king's sniffer 15// Revised May 7 99 to add is.nav5up and is.ie5up (see below). (see below). // Revised June 11 99 to add additional props, checks // Revised June 23 99 added screen props - gecko m6 doesn't support yet - abk // converted to var is_ from is object to work everywhere // 990624 - added cookie forms links frames checks - abk 20// 001031 - ie4 mod 5.0 -> 5. (ie5.5 mididentified - abk) // is_ie4 mod tp work with ie6+ - abk // 001120 - ns6 released, document.layers false, put back in // - is_nav6 test added - abk // 001121 - ns6+ added, used document.getElementById, better test, dom-compl 25// 010117 - actual version for ie3-5.5 by Michel Plungjan // 010118 - actual version for ns6 by Michel Plungjan // 010217 - netscape 6/mz 6 ie5.5 onload defer bug docs - abk // 011107 - added is_ie6 and is_ie6up variables - dmr // 020128 - added link to netscape's sniffer, on which this is based - abk 30// updated sniffer for aol4-6, ie5mac = js1.4, TVNavigator, AOLTV, // hotjava // 020131 - cleaned up links, added more links to example object detection // 020131 - a couple small problems with Opera detection. First, when Opera // is set to be compatible with other browsers it will contain their 35// information in the userAgent strings. Thus, to be sure we have // Opera we should check for it before checking for the other bigs. // (And make sure the others are !opera.) Also corrected a minor // bug in the is_opera6up assignment. // 020214 - Added link for Opera/JS compatibility; added improvements for 40// windows xp/2000 id in opera and aol 7 id (thanks to Les // Hill, Yrf.Uvyy at trgebavpf.pbz, for the suggestion). // 020531 - Added N6/7 and moz identifiers. // 020605 - Added mozilla guessing, Netscape 7 identification, and cleaner // identification for Netscape 6. (this comment added after code 45// changes) // 020725 - Added is_gecko. -- dmr // // Everything you always wanted to know about your JavaScript client // but were afraid to ask. Creates "is_" variables indicating: 50// (1) browser vendor: // is_nav, is_ie, is_opera // (2) browser version number: // is_major (integer indicating major version number: 2, 3, 4 ...) // is_minor (float indicating full version number: 2.02, 3.01, 4.04 ...) 55// (3) browser vendor AND major version number // is_nav2, is_nav3, is_nav4, is_nav4up, is_nav5, is_nav5up, // is_nav6, is_nav6up, is_ie3, is_ie4, is_ie4up, is_ie5up, is_ie6... // (4) JavaScript version number: // is_js (float indicating full JavaScript version number: 1, 1.1, 1.2 ...) 60// (5) OS platform and version: // is_win, is_win16, is_win32, is_win31, is_win95, is_winnt, is_win98 // is_os2 // is_mac, is_mac68k, is_macppc // is_unix 65// is_sun, is_sun4, is_sun5, is_suni86 // is_irix, is_irix5, is_irix6 // is_hpux, is_hpux9, is_hpux10 // is_aix, is_aix1, is_aix2, is_aix3, is_aix4 // is_linux, is_sco, is_unixware, is_mpras, is_reliant 70// is_dec, is_sinix, is_freebsd, is_bsd // is_vms // // based in part on // http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html 75// The Ultimate JavaScript Client Sniffer // and Andy King's object detection sniffer // // Note: you don't want your Nav4 or IE4 code to "turn off" or // stop working when Nav5 and IE5 (or later) are released, so 80// in conditional code forks, use is_nav4up ("Nav4 or greater") // and is_ie4up ("IE4 or greater") instead of is_nav4 or is_ie4 // to check version in code which you want to work on future // versions. For DOM tests scripters commonly used the // is_getElementById test, but make sure you test your code as 85// filter non-compliant browsers (Opera 5-6 for example) as some // browsers return true for this test, and don't fully support // the W3C's DOM1. // 90 // convert all characters to lowercase to simplify testing var agt=navigator.userAgent.toLowerCase(); var appVer = navigator.appVersion.toLowerCase(); // *** BROWSER VERSION *** 95 var is_minor = parseFloat(appVer); var is_major = parseInt(is_minor); // Note: On IE, start of appVersion return 3 or 4 100 // which supposedly is the version of Netscape it is compatible with. // So we look for the real version further on in the string var iePos = appVer.indexOf('msie'); if (iePos !=-1) { 105 is_minor = parseFloat(appVer.substring(iePos+5,appVer.indexOf(';',iePos))) is_major = parseInt(is_minor); } var is_getElementById = (document.getElementById) ? "true" : "false"; // 001121-abk 110 var is_getElementsByTagName = (document.getElementsByTagName) ? "true" : "false"; // 001127-abk var is_documentElement = (document.documentElement) ? "true" : "false"; // 001121-abk var is_gecko = ((navigator.product)&&(navigator.product.toLowerCase()=="gecko"))?true:false; var is_gver = 0; 115 if (is_gecko) is_gver=navigator.productSub; var is_moz = ((agt.indexOf('mozilla/5')!=-1) && (agt.indexOf('spoofer')==-1) && (agt.indexOf('compatible')==-1) && (agt.indexOf('opera')==-1) && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1) && 120 (is_gecko) && ((navigator.vendor=="")||(navigator.vendor=="Mozilla"))); if (is_moz) { var is_moz_ver = (navigator.vendorSub)?navigator.vendorSub:0; if(!(is_moz_ver)) { 125 is_moz_ver = agt.indexOf('rv:'); is_moz_ver = agt.substring(is_moz_ver+3); is_paren = is_moz_ver.indexOf(')'); is_moz_ver = is_moz_ver.substring(0,is_paren); } 130 is_minor = is_moz_ver; is_major = parseInt(is_moz_ver); } var is_nav = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1) 135 && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1) && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1) && (!(is_moz))); // Netscape6 is mozilla/5 + Netscape6/6.0!!! 140 // Mozilla/5.0 (Windows; U; Win98; en-US; m18) Gecko/20001108 Netscape6/6.0 // Changed this to use navigator.vendor/vendorSub - dmr 060502 // var nav6Pos = agt.indexOf('netscape6'); // if (nav6Pos !=-1) { if ((navigator.vendor)&& 145 ((navigator.vendor=="Netscape6")||(navigator.vendor=="Netscape"))&& (is_nav)) { is_major = parseInt(navigator.vendorSub); // here we need is_minor as a valid float for testing. We'll // revert to the actual content before printing the result. 150 is_minor = parseFloat(navigator.vendorSub); } var is_opera = (agt.indexOf("opera") != -1); var is_opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1); 155 var is_opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") != -1); var is_opera4 = (agt.indexOf("opera 4") != -1 || agt.indexOf("opera/4") != -1); var is_opera5 = (agt.indexOf("opera 5") != -1 || agt.indexOf("opera/5") != -1); var is_opera6 = (agt.indexOf("opera 6") != -1 || agt.indexOf("opera/6") != -1); // new 020128- abk var is_opera5up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4); 160 var is_opera6up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4 && !is_opera5); // new020128 var is_nav2 = (is_nav && (is_major == 2)); var is_nav3 = (is_nav && (is_major == 3)); var is_nav4 = (is_nav && (is_major == 4)); 165 var is_nav4up = (is_nav && is_minor >= 4); // changed to is_minor for // consistency - dmr, 011001 var is_navonly = (is_nav && ((agt.indexOf(";nav") != -1) || (agt.indexOf("; nav") != -1)) ); 170 var is_nav6 = (is_nav && is_major==6); // new 010118 mhp var is_nav6up = (is_nav && is_minor >= 6) // new 010118 mhp var is_nav5 = (is_nav && is_major == 5 && !is_nav6); // checked for ns6 var is_nav5up = (is_nav && is_minor >= 5); 175 var is_nav7 = (is_nav && is_major == 7); var is_nav7up = (is_nav && is_minor >= 7); var is_ie = ((iePos!=-1) && (!is_opera)); 180 var is_ie3 = (is_ie && (is_major < 4)); var is_ie4 = (is_ie && is_major == 4); var is_ie4up = (is_ie && is_minor >= 4); var is_ie5 = (is_ie && is_major == 5); 185 var is_ie5up = (is_ie && is_minor >= 5); var is_ie5_5 = (is_ie && (agt.indexOf("msie 5.5") !=-1)); // 020128 new - abk var is_ie5_5up =(is_ie && is_minor >= 5.5); // 020128 new - abk 190 var is_ie6 = (is_ie && is_major == 6); var is_ie6up = (is_ie && is_minor >= 6); // KNOWN BUG: On AOL4, returns false if IE3 is embedded browser // or if this is the first browser window opened. Thus the 195 // variables is_aol, is_aol3, and is_aol4 aren't 100% reliable. var is_aol = (agt.indexOf("aol") != -1); var is_aol3 = (is_aol && is_ie3); var is_aol4 = (is_aol && is_ie4); 200 var is_aol5 = (agt.indexOf("aol 5") != -1); var is_aol6 = (agt.indexOf("aol 6") != -1); var is_aol7 = ((agt.indexOf("aol 7")!=-1) || (agt.indexOf("aol7")!=-1)); var is_webtv = (agt.indexOf("webtv") != -1); 205 // new 020128 - abk var is_TVNavigator = ((agt.indexOf("navio") != -1) || (agt.indexOf("navio_aoltv") != -1)); var is_AOLTV = is_TVNavigator; 210 var is_hotjava = (agt.indexOf("hotjava") != -1); var is_hotjava3 = (is_hotjava && (is_major == 3)); var is_hotjava3up = (is_hotjava && (is_major >= 3)); 215 // end new // *** JAVASCRIPT VERSION CHECK *** // Useful to workaround Nav3 bug in which Nav3 // loads <SCRIPT LANGUAGE="JavaScript1.2">. 220 // updated 020131 by dragle var is_js; if (is_nav2 || is_ie3) is_js = 1.0; else if (is_nav3) is_js = 1.1; else if (is_opera5up) is_js = 1.3; // 020214 - dmr 225 else if (is_opera) is_js = 1.1; else if ((is_nav4 && (is_minor <= 4.05)) || is_ie4) is_js = 1.2; else if ((is_nav4 && (is_minor > 4.05)) || is_ie5) is_js = 1.3; else if (is_nav5 && !(is_nav6)) is_js = 1.4; else if (is_hotjava3up) is_js = 1.4; // new 020128 - abk 230 else if (is_nav6up) is_js = 1.5; // NOTE: In the future, update this code when newer versions of JS // are released. For now, we try to provide some upward compatibility // so that future versions of Nav and IE will show they are at 235 // *least* JS 1.x capable. Always check for JS version compatibility // with > or >=. else if (is_nav && (is_major > 5)) is_js = 1.4; else if (is_ie && (is_major > 5)) is_js = 1.3; 240 else if (is_moz) is_js = 1.5; // what about ie6 and ie6up for js version? abk // HACK: no idea for other browsers; always check for JS version 245 // with > or >= else is_js = 0.0; // HACK FOR IE5 MAC = js vers = 1.4 (if put inside if/else jumps out at 1.3) if ((agt.indexOf("mac")!=-1) && is_ie5up) is_js = 1.4; // 020128 - abk 250 // Done with is_minor testing; revert to real for N6/7 if (is_nav6up) { is_minor = navigator.vendorSub; } 255 // *** PLATFORM *** var is_win = ( (agt.indexOf("win")!=-1) || (agt.indexOf("16bit")!=-1) ); // NOTE: On Opera 3.0, the userAgent string includes "Windows 95/NT4" on all // Win32, so you can't distinguish between Win95 and WinNT. var is_win95 = ((agt.indexOf("win95")!=-1) || (agt.indexOf("windows 95")!=-1)); 260 // is this a 16 bit compiled version? var is_win16 = ((agt.indexOf("win16")!=-1) || (agt.indexOf("16bit")!=-1) || (agt.indexOf("windows 3.1")!=-1) || (agt.indexOf("windows 16-bit")!=-1) ); 265 var is_win31 = ((agt.indexOf("windows 3.1")!=-1) || (agt.indexOf("win16")!=-1) || (agt.indexOf("windows 16-bit")!=-1)); var is_winme = ((agt.indexOf("win 9x 4.90")!=-1)); // new 020128 - abk 270 var is_win2k = ((agt.indexOf("windows nt 5.0")!=-1) || (agt.indexOf("windows 2000")!=-1)); // 020214 - dmr var is_winxp = ((agt.indexOf("windows nt 5.1")!=-1) || (agt.indexOf("windows xp")!=-1)); // 020214 - dmr // NOTE: Reliable detection of Win98 may not be possible. It appears that: // - On Nav 4.x and before you'll get plain "Windows" in userAgent. 275 // - On Mercury client, the 32-bit version will return "Win98", but // the 16-bit version running on Win98 will still return "Win95". var is_win98 = ((agt.indexOf("win98")!=-1) || (agt.indexOf("windows 98")!=-1)); var is_winnt = ((agt.indexOf("winnt")!=-1) || (agt.indexOf("windows nt")!=-1)); var is_win32 = (is_win95 || is_winnt || is_win98 || 280 ((is_major >= 4) && (navigator.platform == "Win32")) || (agt.indexOf("win32")!=-1) || (agt.indexOf("32bit")!=-1)); var is_os2 = ((agt.indexOf("os/2")!=-1) || (navigator.appVersion.indexOf("OS/2")!=-1) || 285 (agt.indexOf("ibm-webexplorer")!=-1)); var is_mac = (agt.indexOf("mac")!=-1); if (is_mac) { is_win = !is_mac; } // dmr - 06/20/2002 var is_mac68k = (is_mac && ((agt.indexOf("68k")!=-1) || 290 (agt.indexOf("68000")!=-1))); var is_macppc = (is_mac && ((agt.indexOf("ppc")!=-1) || (agt.indexOf("powerpc")!=-1))); var is_sun = (agt.indexOf("sunos")!=-1); 295 var is_sun4 = (agt.indexOf("sunos 4")!=-1); var is_sun5 = (agt.indexOf("sunos 5")!=-1); var is_suni86= (is_sun && (agt.indexOf("i86")!=-1)); var is_irix = (agt.indexOf("irix") !=-1); // SGI var is_irix5 = (agt.indexOf("irix 5") !=-1); 300 var is_irix6 = ((agt.indexOf("irix 6") !=-1) || (agt.indexOf("irix6") !=-1)); var is_hpux = (agt.indexOf("hp-ux")!=-1); var is_hpux9 = (is_hpux && (agt.indexOf("09.")!=-1)); var is_hpux10= (is_hpux && (agt.indexOf("10.")!=-1)); var is_aix = (agt.indexOf("aix") !=-1); // IBM 305 var is_aix1 = (agt.indexOf("aix 1") !=-1); var is_aix2 = (agt.indexOf("aix 2") !=-1); var is_aix3 = (agt.indexOf("aix 3") !=-1); var is_aix4 = (agt.indexOf("aix 4") !=-1); var is_linux = (agt.indexOf("inux")!=-1); 310 var is_sco = (agt.indexOf("sco")!=-1) || (agt.indexOf("unix_sv")!=-1); var is_unixware = (agt.indexOf("unix_system_v")!=-1); var is_mpras = (agt.indexOf("ncr")!=-1); var is_reliant = (agt.indexOf("reliantunix")!=-1); var is_dec = ((agt.indexOf("dec")!=-1) || (agt.indexOf("osf1")!=-1) || 315 (agt.indexOf("dec_alpha")!=-1) || (agt.indexOf("alphaserver")!=-1) || (agt.indexOf("ultrix")!=-1) || (agt.indexOf("alphastation")!=-1)); var is_sinix = (agt.indexOf("sinix")!=-1); var is_freebsd = (agt.indexOf("freebsd")!=-1); var is_bsd = (agt.indexOf("bsd")!=-1); 320 var is_unix = ((agt.indexOf("x11")!=-1) || is_sun || is_irix || is_hpux || is_sco ||is_unixware || is_mpras || is_reliant || is_dec || is_sinix || is_aix || is_linux || is_bsd || is_freebsd); var is_vms = ((agt.indexOf("vax")!=-1) || (agt.indexOf("openvms")!=-1)); 325// additional checks, abk var is_anchors = (document.anchors) ? "true":"false"; var is_regexp = (window.RegExp) ? "true":"false"; var is_option = (window.Option) ? "true":"false"; var is_all = (document.all) ? "true":"false"; 330// cookies - 990624 - abk document.cookie = "cookies=true"; var is_cookie = (document.cookie) ? "true" : "false"; var is_images = (document.images) ? "true":"false"; var is_layers = (document.layers) ? "true":"false"; // gecko m7 bug? 335// new doc obj tests 990624-abk var is_forms = (document.forms) ? "true" : "false"; var is_links = (document.links) ? "true" : "false"; var is_frames = (window.frames) ? "true" : "false"; var is_screen = (window.screen) ? "true" : "false"; 340 // java var is_java = (navigator.javaEnabled()); var is_png = is_gecko || is_opera6up || (is_ie5up && is_mac); 345
· sniffer.js ends ·
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