PreviewMessageTag


1   /**
2    * Copyright (C) 2001 Yasna.com. All rights reserved.
3    *
4    * ===================================================================
5    * The Apache Software License, Version 1.1
6    *
7    * Redistribution and use in source and binary forms, with or without
8    * modification, are permitted provided that the following conditions
9    * are met:
10   *
11   * 1. Redistributions of source code must retain the above copyright
12   *    notice, this list of conditions and the following disclaimer.
13   *
14   * 2. Redistributions in binary form must reproduce the above copyright
15   *    notice, this list of conditions and the following disclaimer in
16   *    the documentation and/or other materials provided with the
17   *    distribution.
18   *
19   * 3. The end-user documentation included with the redistribution,
20   *    if any, must include the following acknowledgment:
21   *       "This product includes software developed by
22   *        Yasna.com (http://www.yasna.com)."
23   *    Alternately, this acknowledgment may appear in the software itself,
24   *    if and wherever such third-party acknowledgments normally appear.
25   *
26   * 4. The names "Yazd" and "Yasna.com" must not be used to
27   *    endorse or promote products derived from this software without
28   *    prior written permission. For written permission, please
29   *    contact yazd@yasna.com.
30   *
31   * 5. Products derived from this software may not be called "Yazd",
32   *    nor may "Yazd" appear in their name, without prior written
33   *    permission of Yasna.com.
34   *
35   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38   * DISCLAIMED.  IN NO EVENT SHALL YASNA.COM OR
39   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46   * SUCH DAMAGE.
47   * ====================================================================
48   *
49   * This software consists of voluntary contributions made by many
50   * individuals on behalf of Yasna.com. For more information
51   * on Yasna.com, please see <http://www.yasna.com>.
52   */
53  
54  /**
55   * Copyright (C) 2000 CoolServlets.com. All rights reserved.
56   *
57   * ===================================================================
58   * The Apache Software License, Version 1.1
59   *
60   * Redistribution and use in source and binary forms, with or without
61   * modification, are permitted provided that the following conditions
62   * are met:
63   *
64   * 1. Redistributions of source code must retain the above copyright
65   *    notice, this list of conditions and the following disclaimer.
66   *
67   * 2. Redistributions in binary form must reproduce the above copyright
68   *    notice, this list of conditions and the following disclaimer in
69   *    the documentation and/or other materials provided with the
70   *    distribution.
71   *
72   * 3. The end-user documentation included with the redistribution,
73   *    if any, must include the following acknowledgment:
74   *       "This product includes software developed by
75   *        CoolServlets.com (http://www.coolservlets.com)."
76   *    Alternately, this acknowledgment may appear in the software itself,
77   *    if and wherever such third-party acknowledgments normally appear.
78   *
79   * 4. The names "Jive" and "CoolServlets.com" must not be used to
80   *    endorse or promote products derived from this software without
81   *    prior written permission. For written permission, please
82   *    contact webmaster@coolservlets.com.
83   *
84   * 5. Products derived from this software may not be called "Jive",
85   *    nor may "Jive" appear in their name, without prior written
86   *    permission of CoolServlets.com.
87   *
88   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
89   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
90   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
91   * DISCLAIMED.  IN NO EVENT SHALL COOLSERVLETS.COM OR
92   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
93   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
94   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
95   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
96   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
97   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
98   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
99   * SUCH DAMAGE.
100  * ====================================================================
101  *
102  * This software consists of voluntary contributions made by many
103  * individuals on behalf of CoolServlets.com. For more information
104  * on CoolServlets.com, please see <http://www.coolservlets.com>.
105  */
106 
107 package com.Yasna.forum.tags;
108 
109 import java.io.*;
110 import javax.servlet.*;
111 import javax.servlet.jsp.*;
112 import javax.servlet.jsp.tagext.*;
113 import javax.servlet.http.*;
114 import com.Yasna.forum.*;
115 import com.Yasna.forum.Exceptions.RapidPostingException;
116 import com.Yasna.forum.Exceptions.UserBlackListedException;
117 import com.Yasna.forum.util.ClientIP;
118 import com.Yasna.forum.tags.*;
119 
120 /**
121  * JSP Tag <b>preview_message</b>, used with <b>message</b> tag to
122  * preview a message before posting to a forum.
123  * <p>
124  * Uses the the following HTTP input parameters
125  * <p><ul>
126  * <li><b>subject</b> - subject of message
127  * <li><b>body</b> - body of message
128  * <p>
129  * JSP Tag Lib Descriptor
130  * <p><pre>
131  *  &lt;name&gt;preview_message&lt;/name&gt;
132  *  &lt;tagclass&gt;com.Yasna.forum.tags.PostMessageTag&lt;/tagclass&gt;
133  *  &lt;bodycontent&gt;JSP&lt;/bodycontent&gt;
134  *  &lt;info&gt;Saves the message to the forum.&lt;/info&gt;
135  * </pre>
136  *
137  * @see MessageTag
138  *
139  * @author Glenn Nielsen
140  */
141 
142 public class PreviewMessageTag extends TagSupport implements GetNestedMessage
143 {
144     private YazdState js = null;
145     private YazdRequest jr = null;
146     private String   subject;
147     private String   body;
148     private ForumMessage message;
149 
150     /**
151      * Method called at start of tag, previews the message, includes
152      * body of tag if body parameter has content.
153      *
154      * @return EVAL_BODY_INCLUDE on success, SKIP_BODY on failure
155      */
156     public final int doStartTag() throws JspException
157     {
158         String   IP ="";
159         String   localIP="";
160         // Get the user state information
161         js = (YazdState)pageContext.getAttribute("yazdUserState",
162                 PageContext.SESSION_SCOPE);
163         if( js == null )
164             throw new JspException("Yazd preview_message tag, could not find yazdUserState");
165 
166         // Get the user request information
167         jr = (YazdRequest)pageContext.getAttribute("yazdUserRequest",
168                 PageContext.REQUEST_SCOPE);
169         if( jr == null )
170             throw new JspException("Could not find request");
171 
172         // Get HTTP input parameters
173         ServletRequest req = pageContext.getRequest();
174         IP=req.getRemoteAddr();
175         localIP = req.getParameter("localip");
176         subject = req.getParameter("subject");
177         if( subject == null || subject.length() == 0)
178             subject = " ";
179         body = req.getParameter("body");
180         if( body == null || body.length() == 0 )
181             body = " ";
182 
183         Forum cf = jr.getForum();
184         User user = null;
185 
186         try {
187             user = jr.getProfileManager().getUser( js.getAuthorization().getUserID() );
188         } catch( UserNotFoundException e ) {
189             return SKIP_BODY;
190         }
191         try {
192             ClientIP clientip = new ClientIP(localIP,IP);
193             ForumMessage nm = cf.createMessage( user,clientip );
194             nm.setSubject( subject );
195             nm.setBody( body.toString() );
196             message = cf.applyFilters(nm);
197         } catch( UnauthorizedException ue ) {
198             return SKIP_BODY;
199         } catch( RapidPostingException e){
200             return SKIP_BODY;
201         } catch( UserBlackListedException e){
202             return SKIP_BODY;
203         }
204 
205         return EVAL_BODY_INCLUDE;
206     }
207 
208     /**
209      * Used by <b>message</b> tag to get the current ForumMessage
210      *
211      * @return ForumMessage
212      */
213     public final ForumMessage getMessage()
214     {
215         return message;
216     }
217 
218     /**
219      * Return total number of messages in thread, required by
220      * GetNestedMessage.
221      *
222      * @return String - thread MessageCount
223      */
224     public final int getTotal()
225     {
226         return 0;
227     }
228 
229 }
230
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