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cache user-agent processing

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zzz
2011-09-02 17:24:14 +00:00
parent 5f7983ca17
commit b2263efaf0
1 changed files with 18 additions and 1 deletions
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19
apps/routerconsole/java/src/net/i2p/router/web/CSSHelper.java
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@ -1,10 +1,16 @@
package net.i2p.router.web;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* Copied and modded from I2PTunnel IndexBean (GPL)
* @author zzz
*/
public class CSSHelper extends HelperBase {
private static final Map<String, Boolean> _UACache = new ConcurrentHashMap();
public CSSHelper() {}
public static final String PROP_THEME_NAME = "routerconsole.theme";
@ -69,7 +75,18 @@ public class CSSHelper extends HelperBase {
* @since 0.8.5
*/
public boolean allowIFrame(String ua) {
return ua == null ||
if (ua == null)
return true;
Boolean brv = _UACache.get(ua);
if (brv != null)
return brv.booleanValue();
boolean rv = shouldAllowIFrame(ua);
_UACache.put(ua, Boolean.valueOf(rv));
return rv;
}
private static boolean shouldAllowIFrame(String ua) {
return
// text
!(ua.startsWith("Lynx") || ua.startsWith("w3m") ||
ua.startsWith("ELinks") || ua.startsWith("Links") ||