com.sun.webui.jsf.util.ClientSniffer Maven / Gradle / Ivy
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package com.sun.webui.jsf.util;
import java.util.Map;
import java.util.StringTokenizer;
import javax.faces.context.FacesContext;
/**
* This utility class parses the user agent of a HttpServletRequest
* object to determine browser type, version, and platform.
*
* The code of this utility class is based on "The
* Ultimate JavaScript Client Sniffer", version 3.03 which is located
* at the following URL.
*
* http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html
*
* Usage Example:
*
* FacesContext context = FacesContext.getCurrentInstance();
* ClientSniffer cs = new ClientSniffer(context);
*
* String stylesheet = CCStyle.IE6_UP_CSS;
*
* if (isIe6up()) {
* stylesheet = CCStyle.IE6_UP_CSS;
* } else if (isIe5up()) {
* stylesheet = CCStyle.IE5_UP_CSS;
* } else if (isNav6up()) {
* stylesheet = CCStyle.NS6_UP_CSS;
* } else if (isNav4up() && isWin()) {
* stylesheet = CCStyle.NS4_WIN_CSS;
* } else if (isNav4up() && isSun()) {
* stylesheet = CCStyle.NS4_SOL_CSS;
* }
*
*
* @version 1.10 02/06/04
* @author Sun Microsystems, Inc.
*/
public class ClientSniffer {
// User Agent Headers (DON'T DELETE).
//
// Windows 2000
// ------------
//
// IE 5.0 Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)
// Netscape 4.7 Mozilla/4.7 [en] (WinNT; U)
// Netscape 6.2.1 mozilla/5.0 (windows; u; win98; en-us; rv:0.9.4)
// gecko/20011128 netscape6/6.2.1
// Netscape 7.02 Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US;
// rv:1.0.2) Gecko/20030208 Netscape/7.02
// Netscape 7.1 Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4)
// Gecko/20030624 Netscape/7.1 (ax)
// Mozilla 1.4 Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4)
// Gecko/20030624
//
// SunOS
// -----
//
// Netscape 4.78 Mozilla/4.78 [en] (X11; U; SunOS 5.10 sun4u)
// Netscape 6.2.1 mozilla/5.0 (x11; u; sunos sun4u; en-us; rv:0.9.4)
// gecko/20011206 netscape6/6.2.1
// Netscape 6.2.2 Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:0.9.4.1)
// Gecko/20020406 Netscape6/6.2.2
// Netscape 7.0 Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.0.1)
// Gecko/20020920 Netscape/7.0
// Mozilla 1.1 Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.1)
// Gecko/20020827
// HotJava 1.0.1 HotJava/1.0.1/JRE1.1.3
// Generic Profile/MIDP-1.0 Configuration/CLDC-1.0
// User agent.
private String agent = null;
// User agent major version number.
private int major = -1;
/**
* Default constructor.
*
* @param context FacesContext which should be used to
* extract the user agent.
*/
public ClientSniffer(FacesContext context) {
String version = null;
setUserAgent(context);
agent = getUserAgent();
// Parse user agent.
if (agent != null) {
StringTokenizer st = new StringTokenizer(agent, "/");
// Parse out user agent name.
if (st.hasMoreTokens()) {
st.nextToken();
}
// Get user agent version number.
if (st.hasMoreTokens()) {
version = st.nextToken();
}
if (version != null) {
// Remove white space & extra info.
st = new StringTokenizer(version);
if (st.hasMoreTokens()) {
version = st.nextToken();
}
}
}
// Parse user agent major version number.
if (version != null) {
StringTokenizer st = new StringTokenizer(version, ".");
if (st.hasMoreTokens()) {
try {
major = Integer.parseInt(st.nextToken());
} catch (NumberFormatException ex) {
// Ignore
}
}
}
}
/**
*
This method gets an instance of this class associated with the
* given FacesContext. It will look in the request scope
* to see if an instance already exists, if not, it will create
* one.
*
* @param context The FacesContext
*
* @return A ClientSniffer instance.
*/
public static ClientSniffer getInstance(FacesContext context) {
// Look for a cached one
Map requestMap = context.getExternalContext().getRequestMap();
ClientSniffer sniffer = (ClientSniffer) requestMap.get("__sniffer");
if (sniffer == null) {
// Not yet created, create one
sniffer = new ClientSniffer(context);
requestMap.put("__sniffer", sniffer);
}
// Return the sniffer
return sniffer;
}
/**
* This method initializes the user agent via the supplied
* FacesContext. It will use the
* ExternalContext to get at the request header Map.
* It will use this Map to obtain the value for
* USER-AGENT.
*
* @param context The FacesContext
*/
protected void setUserAgent(FacesContext context) {
Map headerMap = context.getExternalContext().getRequestHeaderMap();
if (null != headerMap) {
agent = (String) headerMap.get("USER-AGENT");
if (null != agent) {
agent = agent.toLowerCase();
}
}
}
/**
* Get the user agent.
*
* @return The user agent.
*/
public String getUserAgent() {
return agent;
}
/**
* Get the user agent major version number.
*
* @return The user agent major version number or
* -1 if the version number was not retrieved.
*/
public int getUserAgentMajor() {
return major;
}
/**
* Test if the user agent was generated on Windows platform.
*
* @return true or false
*/
public boolean isWin() {
boolean result = false;
if ((agent != null) && ((agent.indexOf("win") != -1)
|| (agent.indexOf("16bit") != -1))) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated on Sun platform.
*
* @return true or false
*/
public boolean isSun() {
boolean result = false;
if ((agent != null) && (agent.indexOf("sunos") != -1)) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Gecko engine.
*
* @return true or false
*/
public boolean isGecko() {
boolean result = false;
if ((agent != null) && (agent.indexOf("gecko") != -1)) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Navigator.
*
* @return true or false
*/
public boolean isNav() {
boolean result = false;
if ((agent != null)
&& (agent.indexOf("mozilla") != -1)
&& (agent.indexOf("spoofer") == -1)
&& (agent.indexOf("compatible") == -1)
&& (agent.indexOf("opera") == -1)
&& (agent.indexOf("webtv") == -1)
&& (agent.indexOf("hotjava") == -1)) {
// The header for Netscape 4.x is similar to the header
// for the Mozilla browser; however, Netscape 4.x does not
// implement the Gecko engine.
if (!(isGecko() && (agent.indexOf("netscape") == -1))) {
result = true;
}
}
return result;
}
/**
* Test if the user agent was generated by Navigator,
* version 4.x.
*
* @return true or false
*/
public boolean isNav4() {
boolean result = false;
if (isNav() && (major == 4)) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Navigator,
* version 4.x or above.
*
* @return true or false
*/
public boolean isNav4up() {
boolean result = false;
if (isNav() && (major >= 4)) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Navigator,
* version 6.x.
*
* @return true or false
*/
public boolean isNav6() {
boolean result = false;
if (isNav() && (major == 5) && (null != agent) &&
(agent.indexOf("netscape6") != -1)) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Navigator,
* version 6.x or above.
*
* @return true or false
*/
public boolean isNav6up() {
boolean result = false;
if (isNav() && major >= 5) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Navigator,
* version 7.x.
*
* @return true or false
*/
public boolean isNav7() {
boolean result = false;
if (isNav() && major == 5 && (null != agent)
&& (agent.indexOf("netscape/7") != -1)) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Navigator,
* version 7.0.
*
* @return true or false
*/
public boolean isNav70() {
boolean result = false;
if (isNav() && major == 5 && (null != agent)
&& (agent.indexOf("netscape/7.0") != -1)) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Navigator,
* version 7.x or above.
*
* @return true or false
*/
public boolean isNav7up() {
boolean result = false;
if (isNav() && (major >= 5) && !isNav4() && !isNav6()) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Internet Explorer.
*
* @return true or false
*/
public boolean isIe() {
boolean result = false;
if ((agent != null)
&& (agent.indexOf("msie") != -1)
&& (agent.indexOf("opera") == -1)) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Internet Explorer,
* version 3.x.
*
* @return true or false
*/
public boolean isIe3() {
boolean result = false;
if (isIe() && (major < 4)) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Internet Explorer,
* version 4.x.
*
* @return true or false
*/
public boolean isIe4() {
boolean result = false;
if (isIe() && (major == 4) && (null != agent)
&& (agent.indexOf("msie 4") != -1)) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Internet Explorer,
* version 5.x.
*
* @return true or false
*/
public boolean isIe5() {
boolean result = false;
if (isIe() && (major == 4) && (null != agent) && (agent.indexOf("msie 5") != -1)) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Internet Explorer,
* version 5.x or above.
*
* @return true or false
*/
public boolean isIe5up() {
boolean result = false;
if (isIe() && !isIe3() && !isIe4()) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Internet Explorer,
* version 6.x.
*
* @return true or false
*/
public boolean isIe6() {
boolean result = false;
if (isIe() && (major == 4) && (null != agent) && (agent.indexOf("msie 6") != -1)) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Internet Explorer,
* version 7.x.
*
* @return true or false
*/
public boolean isIe7() {
boolean result = false;
if (isIe() && (major == 4) && (null != agent) && (agent.indexOf("msie 7") != -1)) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Internet Explorer,
* version 6.x or above.
*
* @return true or false
*/
public boolean isIe6up() {
boolean result = false;
if (isIe() && !isIe3() && !isIe4() && !isIe5()) {
result = true;
}
return result;
}
/**
* Test if the user agent was generated by Internet Explorer,
* version 7.x or above.
*
* @return true or false
*/
public boolean isIe7up() {
boolean result = false;
if (isIe() && !isIe3() && !isIe4() && !isIe5() && !isIe6()) {
result = true;
}
return result;
}
/**
* This method is used by the Theme.
*
* @param context The FacesContext
*
* @return The {@link ClientType}.
*/
public static ClientType getClientType(FacesContext context) {
Map map = context.getExternalContext().getRequestHeaderMap();
if (null == map) {
return ClientType.OTHER;
}
String agent = (String) map.get("USER-AGENT");
if (agent == null) {
return ClientType.OTHER;
}
agent = agent.toLowerCase();
// Need to test for Safari first since it has "Gecko like"
// in the user agent string and this will match "gecko"
//
if (agent.indexOf("safari") != -1) {
return ClientType.SAFARI;
} else if (agent.indexOf("gecko") != -1) {
return ClientType.GECKO;
} else if (agent.indexOf("msie 7") != -1) {
return ClientType.IE7;
} else if (agent.indexOf("msie 6") != -1) {
return ClientType.IE6;
} else if (agent.indexOf("msie 5.5") != -1) {
return ClientType.IE5_5;
} else {
return ClientType.OTHER;
}
}
}