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1   /*
2    * FCKeditor - The text editor for Internet - http://www.fckeditor.net
3    * Copyright (C) 2003-2008 Frederico Caldeira Knabben
4    * 
5    * == BEGIN LICENSE ==
6    * 
7    * Licensed under the terms of any of the following licenses at your
8    * choice:
9    * 
10   *  - GNU General Public License Version 2 or later (the "GPL")
11   *    http://www.gnu.org/licenses/gpl.html
12   * 
13   *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
14   *    http://www.gnu.org/licenses/lgpl.html
15   * 
16   *  - Mozilla Public License Version 1.1 or later (the "MPL")
17   *    http://www.mozilla.org/MPL/MPL-1.1.html
18   * 
19   * == END LICENSE ==
20   */
21  package net.fckeditor.tags;
22  
23  import java.io.IOException;
24  import java.util.HashSet;
25  import java.util.Set;
26  
27  import javax.servlet.http.HttpServletRequest;
28  import javax.servlet.jsp.JspException;
29  import javax.servlet.jsp.JspTagException;
30  import javax.servlet.jsp.JspWriter;
31  import javax.servlet.jsp.tagext.TagSupport;
32  
33  import net.fckeditor.handlers.PropertiesLoader;
34  import net.fckeditor.handlers.RequestCycleHandler;
35  import net.fckeditor.tool.Compatibility;
36  
37  /**
38   * CheckTag.java - TODO DOCUMENTME!
39   *
40   * @version $Id: CheckTag.java 1905 2008-04-10 15:32:00Z th-schwarz $
41   */
42  public class CheckTag extends TagSupport {
43  
44  	private static final long serialVersionUID = -6834095891675681686L;
45  
46  	private static final String FILE_UPLOAD = "FileUpload";
47  	private static final String FILE_BROWSING = "FileBrowsing";
48  	private static final String COMPATIBLE_BROWSER = "CompatibleBrowser";
49  	private static final String PROPERTY_MESSAGE_FILE_BROWSING_DISABLED = "message.enabled_tag.connector.file_browsing.disabled";
50  	private static final String PROPERTY_MESSAGE_FILE_BROWSING_ENABLED = "message.enabled_tag.connector.file_browsing.enabled";
51  	private static final String PROPERTY_MESSAGE_FILE_UPLOAD_DISABLED = "message.enabled_tag.connector.file_upload.disalbed";
52  	private static final String PROPERTY_MESSAGE_FILE_UPLOAD_ENABLED = "message.enabled_tag.connector.file_upload.enabled";
53  	private static final String PROPERTY_MESSAGE_NOT_COMPATIBLE_BROWSER = "message.enabled_tag.compatible_browser.no";
54  	private static final String PROPERTY_MESSAGE_COMPATIBLE_BROWSER = "message.enabled_tag.compatible_browser.yes";
55  	private static Set<String> commands = new HashSet<String>(3);
56  
57  	static {
58  		commands.add(FILE_UPLOAD);
59  		commands.add(FILE_BROWSING);
60  		commands.add(COMPATIBLE_BROWSER);
61  	}
62  
63  	private String command;
64  
65  	public void setCommand(String command) throws JspTagException {
66  		if (!commands.contains(command))
67  			throw new JspTagException("You have to provide one of the following commands: "
68  			        + commands);
69  		this.command = command;
70  	}
71  
72  	@Override
73  	public int doStartTag() throws JspException {
74  		JspWriter out = pageContext.getOut();
75  
76  		HttpServletRequest request = (HttpServletRequest) pageContext.getRequest();
77  		String response = new String();
78  
79  		if (command.equals(FILE_UPLOAD)) {
80  			if (RequestCycleHandler.isEnabledForFileUpload(request))
81  				response = PropertiesLoader
82  				        .getProperty(CheckTag.PROPERTY_MESSAGE_FILE_UPLOAD_ENABLED);
83  			else
84  				response = PropertiesLoader
85  				        .getProperty(CheckTag.PROPERTY_MESSAGE_FILE_UPLOAD_DISABLED);
86  		}
87  
88  		if (command.equals(FILE_BROWSING)) {
89  			if (RequestCycleHandler.isEnabledForFileBrowsing(request))
90  				response = PropertiesLoader
91  				        .getProperty(CheckTag.PROPERTY_MESSAGE_FILE_BROWSING_ENABLED);
92  			else
93  				response = PropertiesLoader
94  				        .getProperty(CheckTag.PROPERTY_MESSAGE_FILE_BROWSING_DISABLED);
95  		}
96  		if (command.equals(COMPATIBLE_BROWSER)) {
97  			if (Compatibility.isCompatibleBrowser(request))
98  				response = PropertiesLoader
99  				        .getProperty(CheckTag.PROPERTY_MESSAGE_COMPATIBLE_BROWSER);
100 			else
101 				response = PropertiesLoader
102 				        .getProperty(CheckTag.PROPERTY_MESSAGE_NOT_COMPATIBLE_BROWSER);
103 		}
104 
105 		try {
106 			out.print(response);
107 		} catch (IOException e) {
108 			e.printStackTrace();
109 		}
110 
111 		return SKIP_BODY;
112 	}
113 
114 }