Created
March 25, 2012 21:45
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Lookup WebSocket support based on browser user agent
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UA_FIREFOX = new RegExp(".*Firefox/([0-9+]*).*") | |
UA_CHROME = new RegExp(".*Chrome/([0-9+]*).*") | |
UA_CHROMEFRAME = new RegExp(".*chromeframe/([0-9]*).*") | |
UA_WEBKIT = new RegExp(".*AppleWebKit/([0-9+\.]*)\w*.*") | |
UA_WEBOS = new RegExp(".*webOS/([0-9+\.]*)\w*.*") | |
var matchRegex = function(s, r) { | |
var m = r.exec(s) | |
if (m) return m[1] | |
return m | |
}; | |
var lookupWsSupport = function() { | |
var ua = navigator.userAgent; | |
// Firefox | |
if (ua.indexOf("Firefox") > -1) { | |
var v = parseInt(matchRegex(ua, UA_FIREFOX)) | |
if (v) { | |
if (v >= 7) | |
return [true,false,true] | |
if (v >= 3) | |
return [true,true,true] | |
return [false,false,true] | |
} | |
return [false,false,true] | |
} | |
// Safari | |
else if (ua.indexOf("Safari") > -1 && ua.indexOf("Chrome") == -1) { | |
var v = matchRegex(ua, UA_WEBKIT) | |
if (v) { | |
if (ua.indexOf("Windows") > -1 && v == "534+") // Not sure about this test ~RMH | |
return [true,false,true] | |
if (ua.indexOf("Macintosh") > -1) { | |
v = v.replace("+","").split(".") | |
if ((parseInt(v[0]) == 535 && parseInt(v[1]) >= 24) || parseInt(v[0]) > 535) | |
return [true,false,true] | |
} | |
if (ua.indexOf("webOS") > -1) { | |
v = matchRegex(ua, UA_WEBOS).split(".") | |
if (parseInt(v[0]) == 2) | |
return [false,true,true] | |
return [false,false,false] | |
} | |
return [true,true,true] | |
} | |
return [false,false,false] | |
} | |
// Chrome | |
else if (ua.indexOf("Chrome") > -1) { | |
var v = parseInt(matchRegex(ua, UA_CHROME)) | |
if (v) { | |
if (v >= 14) | |
return [true,false,true] | |
if (v >= 4) | |
return [true,true,true] | |
return [false,false,true] | |
} | |
return [false,false,false] | |
} | |
// Android | |
else if (ua.indexOf("Android") > -1) { | |
// Firefox Mobile | |
if (ua.indexOf("Firefox") > -1) | |
return [true,false,true] | |
// Chrome for Android | |
else if (ua.indexOf("CrMo") > -1) | |
return [true,false,true] | |
// Opera Mobile | |
else if (ua.indexOf("Opera") > -1) | |
return [false,false,true] | |
// Android Browser | |
else if (ua.indexOf("CrMo") > -1) | |
return [true,true,true] | |
return [false,false,false] | |
} | |
// iOS | |
else if (ua.indexOf("iPhone") > -1 || ua.indexOf("iPad") > -1 || ua.indexOf("iPod") > -1) | |
return [false,false,true] | |
// Unidentified | |
return [false,false,false] | |
}; |
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