/
UserAgentHelper.java
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/
UserAgentHelper.java
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/*
* Copyright 2012-2024 CodeLibs Project and the Others.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
package org.codelibs.fess.helper;
import org.lastaflute.web.util.LaRequestUtil;
public class UserAgentHelper {
protected static final String USER_AGENT = "user-agent";
protected static final String USER_AGENT_TYPE = "ViewHelper.UserAgent";
public UserAgentType getUserAgentType() {
return LaRequestUtil.getOptionalRequest().map(request -> {
UserAgentType uaType = (UserAgentType) request.getAttribute(USER_AGENT_TYPE);
if (uaType == null) {
final String userAgent = request.getHeader(USER_AGENT);
if (userAgent != null) {
if (userAgent.indexOf("MSIE") >= 0 || userAgent.indexOf("Trident") >= 0) {
uaType = UserAgentType.IE;
} else if (userAgent.indexOf("Firefox") >= 0) {
uaType = UserAgentType.FIREFOX;
} else if (userAgent.indexOf("Chrome") >= 0) {
uaType = UserAgentType.CHROME;
} else if (userAgent.indexOf("Safari") >= 0) {
uaType = UserAgentType.SAFARI;
} else if (userAgent.indexOf("Opera") >= 0) {
uaType = UserAgentType.OPERA;
}
}
if (uaType == null) {
uaType = UserAgentType.OTHER;
}
request.setAttribute(USER_AGENT_TYPE, uaType);
}
return uaType;
}).orElse(UserAgentType.OTHER);
}
public enum UserAgentType {
IE, FIREFOX, CHROME, SAFARI, OPERA, OTHER;
}
}