64 lines
1.6 KiB
JavaScript
64 lines
1.6 KiB
JavaScript
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window.misc_addons_detect = { };
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/**
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* Returns the Java version
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**/
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window.misc_addons_detect.getJavaVersion = function () {
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var foundVersion = null;
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//
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// This finds the Java version from Java WebStart's ActiveX control
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// This is specific to Windows
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//
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for (var i1=0; i1 < 10; i1++) {
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for (var i2=0; i2 < 10; i2++) {
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for (var i3=0; i3 < 10; i3++) {
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for (var i4=0; i4 < 10; i4++) {
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var version = String(i1) + "." + String(i2) + "." + String(i3) + "." + String(i4);
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var progId = "JavaWebStart.isInstalled." + version;
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try {
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new ActiveXObject(progId);
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return version;
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}
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catch (e) {
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continue;
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}
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}}}}
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//
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// This finds the Java version from window.navigator.mimeTypes
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// This seems to work pretty well for most browsers except for IE
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//
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if (foundVersion == null) {
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var mimes = window.navigator.mimeTypes;
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for (var i=0; i<mimes.length; i++) {
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var m = /java.+;version=(.+)/.exec(mimes[i].type);
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if (m) {
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var version = parseFloat(m[1]);
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if (version > foundVersion) {
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foundVersion = version;
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}
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}
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}
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}
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//
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// This finds the Java version from navigator plugins
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// This is necessary for Windows + Firefox setup, but the check isn't as good as the mime one.
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// So we do this last.
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//
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if (foundVersion == null) {
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var foundJavaString = "";
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var pluginsCount = navigator.plugins.length;
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for (i=0; i < pluginsCount; i++) {
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var pluginName = navigator.plugins[i].name;
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var pluginVersion = navigator.plugins[i].version;
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if (/Java/.test(pluginName) && pluginVersion != undefined) {
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foundVersion = navigator.plugins[i].version;
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break;
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}
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}
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}
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return foundVersion;
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}
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