172 lines
6.0 KiB
Java
172 lines
6.0 KiB
Java
/*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* (the "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
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*
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* Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
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* WARRANTY OF ANY KIND, either express or implied. See the License for the specific
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* language governing rights and limitations under the License.
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*
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* The Original Code is the Venice Web Communities System.
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*
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* The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
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* for Silverwrist Design Studios. Portions created by Eric J. Bowersox are
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* Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios. All Rights Reserved.
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*
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* Contributor(s):
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*/
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package com.silverwrist.venice.servlets.format;
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import java.util.*;
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import java.io.Writer;
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import java.io.IOException;
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import javax.servlet.*;
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import javax.servlet.http.*;
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import com.silverwrist.util.StringUtil;
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public class ConfirmBox implements ContentRender, ColorSelectors
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{
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/*--------------------------------------------------------------------------------
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* Static data members
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*--------------------------------------------------------------------------------
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*/
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private static final long TIMEOUT = 60000; // 1 minute
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private static Random rng = null;
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/*--------------------------------------------------------------------------------
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* Attributes
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*--------------------------------------------------------------------------------
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*/
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private int conf_num;
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private String title;
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private String message;
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private String confirm_url;
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private String deny_url;
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private Date created;
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/*--------------------------------------------------------------------------------
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* Constructor
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*--------------------------------------------------------------------------------
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*/
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public ConfirmBox(HttpServletRequest request, String attr_name, String param_name, String title,
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String message, String confirm_url, String deny_url)
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{
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if (rng==null)
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{ // initialize the random number gnerator
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Date now = new Date();
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rng = new Random(now.getTime());
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} // end if
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// Fill in all the parameters except created.
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this.conf_num = rng.nextInt(0x1000000);
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this.title = title;
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this.message = message;
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this.confirm_url = confirm_url + "&" + param_name + "=" + this.conf_num;
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this.deny_url = deny_url;
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// Stash this object in the HTTP session.
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HttpSession session = request.getSession(true);
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session.setAttribute(attr_name,this);
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// Now start the timer ticking...
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this.created = new Date();
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} // end constructor
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/*--------------------------------------------------------------------------------
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* Internal operations
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*--------------------------------------------------------------------------------
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*/
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protected boolean doConfirm(int test_num)
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{
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Date now = new Date();
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if ((now.getTime()-created.getTime())>TIMEOUT)
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return false;
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return (test_num==conf_num);
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} // end doConfirm
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/*--------------------------------------------------------------------------------
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* Implementations from interface VeniceContent
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*--------------------------------------------------------------------------------
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*/
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public String getPageTitle(RenderData rdat)
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{
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return title;
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} // end getPageTitle
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public String getPageQID()
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{
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return null;
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} // end getPageQID
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/*--------------------------------------------------------------------------------
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* Implementations from interface ContentRender
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*--------------------------------------------------------------------------------
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*/
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public void renderHere(Writer out, RenderData rdat) throws IOException
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{
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out.write("<P><TABLE ALIGN=CENTER WIDTH=\"70%\" BORDER=1 CELLPADDING=2 CELLSPACING=1>");
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out.write("<TR VALIGN=MIDDLE><TD ALIGN=CENTER BGCOLOR=\"" + rdat.getStdColor(CONFIRM_TITLE_BACKGROUND)
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+ "\">\n");
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out.write(rdat.getStdFontTag(CONFIRM_TITLE_FOREGROUND,3) + StringUtil.encodeHTML(title) + "</FONT>\n");
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out.write("</TD></TR><TR VALIGN=MIDDLE><TD ALIGN=CENTER>\n");
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out.write(rdat.getStdFontTag(CONTENT_FOREGROUND,3) + "<P>" + StringUtil.encodeHTML(message) + "<P>\n");
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out.write("<A HREF=\"" + rdat.getEncodedServletPath(confirm_url) + "\">");
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out.write("<IMG SRC=\"" + rdat.getFullImagePath("bn_yes.gif")
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+ "\" ALT=\"Yes\" WIDTH=80 HEIGHT=24 BORDER=0></A> \n");
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out.write("<A HREF=\"" + rdat.getEncodedServletPath(deny_url) + "\">");
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out.write("<IMG SRC=\"" + rdat.getFullImagePath("bn_no.gif")
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+ "\" ALT=\"No\" WIDTH=80 HEIGHT=24 BORDER=0></A>\n");
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out.write("</FONT></TD></TR></TABLE><P>\n");
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} // end renderHere
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/*--------------------------------------------------------------------------------
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* External static operations
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*--------------------------------------------------------------------------------
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*/
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public static boolean isConfirmed(HttpServletRequest request, String attr_name, String param_name)
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{
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// First, get the ConfirmBox out of the session data
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HttpSession session = request.getSession(true);
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Object obj = session.getAttribute(attr_name);
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session.removeAttribute(attr_name); // we can only get it out once!
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if ((obj==null) || !(obj instanceof ConfirmBox)) // this is not a valid ConfirmBox!
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return false;
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ConfirmBox cb = (ConfirmBox)obj;
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// Now get the confirmation number out of the URL parameters.
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String test_num_str = request.getParameter(param_name);
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if (test_num_str==null)
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return false; // no confirmation!
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int test_num;
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try
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{ // convert to an integer
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test_num = Integer.parseInt(test_num_str);
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} // end try
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catch (NumberFormatException nfe)
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{ // if the confirmation number is bogus, we're h0sed
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return false;
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} // end catch
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return cb.doConfirm(test_num);
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} // end isConfirmed
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} // end class ConfirmBox
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