582 lines
20 KiB
Java
582 lines
20 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;
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import java.io.*;
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import javax.servlet.*;
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import javax.servlet.http.*;
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import org.apache.log4j.*;
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import com.silverwrist.util.StringUtil;
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import com.silverwrist.venice.ValidationException;
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import com.silverwrist.venice.core.*;
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import com.silverwrist.venice.servlets.format.*;
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public class ConfOperations extends VeniceServlet
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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 Category logger = Category.getInstance(ConfOperations.class.getName());
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/*--------------------------------------------------------------------------------
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* Internal functions
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*--------------------------------------------------------------------------------
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*/
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private CreateConferenceDialog makeCreateConferenceDialog() throws ServletException
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{
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final String desired_name = "CreateConferenceDialog";
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DialogCache cache = DialogCache.getDialogCache(getServletContext());
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if (!(cache.isCached(desired_name)))
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{ // create a template and save it off
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CreateConferenceDialog template = new CreateConferenceDialog();
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cache.saveTemplate(template);
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} // end if
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// return a new copy
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return (CreateConferenceDialog)(cache.getNewDialog(desired_name));
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} // end makeCreateConferenceDialog
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private EditConferenceDialog makeEditConferenceDialog() throws ServletException
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{
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final String desired_name = "EditConferenceDialog";
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DialogCache cache = DialogCache.getDialogCache(getServletContext());
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if (!(cache.isCached(desired_name)))
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{ // create a template and save it off
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EditConferenceDialog template = new EditConferenceDialog();
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cache.saveTemplate(template);
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} // end if
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// return a new copy
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return (EditConferenceDialog)(cache.getNewDialog(desired_name));
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} // end makeEditConferenceDialog
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private static boolean validateNewTopic(ServletRequest request, String on_error) throws ErrorBox
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{
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boolean is_title_null, is_zp_null;
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String foo = request.getParameter("title");
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if (foo==null)
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throw new ErrorBox(null,"Title parameter was not specified.",on_error);
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is_title_null = (foo.length()==0);
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foo = request.getParameter("pseud");
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if (foo==null)
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throw new ErrorBox(null,"Pseud parameter was not specified.",on_error);
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foo = request.getParameter("pb");
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if (foo==null)
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throw new ErrorBox(null,"Body text was not specified.",on_error);
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is_zp_null = (foo.length()==0);
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return is_title_null || is_zp_null;
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} // end validateNewTopic
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/*--------------------------------------------------------------------------------
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* Overrides from class HttpServlet
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*--------------------------------------------------------------------------------
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*/
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public String getServletInfo()
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{
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String rc = "ConfOperations servlet - General conference operations (list, create, etc.)\n"
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+ "Part of the Venice Web Communities System\n";
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return rc;
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} // end getServletInfo
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/*--------------------------------------------------------------------------------
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* Overrides from class VeniceServlet
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*--------------------------------------------------------------------------------
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*/
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protected VeniceContent doVeniceGet(HttpServletRequest request, VeniceEngine engine,
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UserContext user, RenderData rdat)
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throws ServletException, IOException, VeniceServletResult
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{
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// get the SIG
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SIGContext sig = getSIGParameter(request,user,true,"top");
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changeMenuSIG(request,sig);
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String on_error = "confops?sig=" + sig.getSIGID();
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// get the command we want to use
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String cmd = getStandardCommandParam(request);
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if (cmd.equals("C"))
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{ // "C" = "Create conference"
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if (!(sig.canCreateConference()))
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return new ErrorBox("Access Error","You are not permitted to create conferences in this SIG.",
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on_error);
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// make the "create" dialog
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CreateConferenceDialog dlg = makeCreateConferenceDialog();
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dlg.setupDialog(engine,sig);
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setMyLocation(request,on_error + "&cmd=C");
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return dlg;
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} // end if ("C" command)
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if (cmd.equals("T"))
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{ // "T" = "Create topic" (requires conference parameter)
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ConferenceContext conf = getConferenceParameter(request,sig,true,on_error);
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on_error = "confdisp?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID();
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// Create the new topic form.
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NewTopicForm ntf = new NewTopicForm(sig,conf);
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ntf.setupNewRequest();
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setMyLocation(request,"confops?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID() + "&cmd=T");
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return ntf;
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} // end if ("T" command)
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if (cmd.equals("Q"))
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{ // "Q" = display Manage menu (requires conference parameter)
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ConferenceContext conf = getConferenceParameter(request,sig,true,on_error);
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on_error = "confdisp?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID();
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// display the "Manage Conference" display
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setMyLocation(request,"confops?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID() + "&cmd=Q");
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return new ManageConference(sig,conf);
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} // end if ("Q" command)
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if (cmd.equals("FX"))
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{ // "FX" = the dreaded fixseen :-) - catches up the entire conference
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ConferenceContext conf = getConferenceParameter(request,sig,true,on_error);
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on_error = "confdisp?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID();
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try
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{ // do the fixseen operation
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conf.fixSeen();
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} // end try
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catch (DataException de)
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{ // some sort of error in the database
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return new ErrorBox("Database Error","Database error catching up conference: " + de.getMessage(),
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on_error);
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} // end catch
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return null; // null response here
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} // end if ("FX" command)
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if (cmd.equals("E"))
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{ // "E" = "Edit Conference Settings" (requires conference parameter)
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ConferenceContext conf = getConferenceParameter(request,sig,true,on_error);
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on_error = "confops?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID() + "&cmd=Q";
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if (!(conf.canChangeConference()))
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return new ErrorBox("Access Error","You are not permitted to change this conference's settings.",
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on_error);
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// create and return the Edit Conference dialog
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EditConferenceDialog dlg = makeEditConferenceDialog();
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try
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{ // set up and return the dialog
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dlg.setupDialog(sig,conf);
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setMyLocation(request,"confops?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID() + "&cmd=E");
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return dlg;
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} // end try
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catch (AccessError ae)
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{ // some sort of access error - display an error dialog
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return new ErrorBox("Access Error",ae.getMessage(),on_error);
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} // end catch
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catch (DataException de)
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{ // database error retrieving the conference information
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return new ErrorBox("Database Error","Database error getting conference information: "
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+ de.getMessage(),on_error);
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} // end catch
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} // end if ("E" command)
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if (cmd.equals("A"))
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{ // "A" = "Manage Aliases" (requires conference parameter)
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ConferenceContext conf = getConferenceParameter(request,sig,true,on_error);
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on_error = "confops?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID() + "&cmd=Q";
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if (!(conf.canChangeConference()))
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return new ErrorBox("Access Error","You are not permitted to change this conference's aliases.",
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on_error);
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// process alias removal link
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String remove = request.getParameter("rem");
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if (!(StringUtil.isStringEmpty(remove)))
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{ // do removal of an alias
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try
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{ // go ahead and remove the alias!
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conf.removeAlias(remove);
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} // end try
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catch (AccessError ae)
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{ // some sort of access error - display an error dialog
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return new ErrorBox("Access Error",ae.getMessage(),on_error);
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} // end catch
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catch (DataException de)
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{ // database error creating the conference
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return new ErrorBox("Database Error","Database error removing alias: " + de.getMessage(),
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on_error);
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} // end catch
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} // end if (removing an alias)
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// display the "Manage Conference Aliases" display
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try
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{ // generate the display box
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setMyLocation(request,"confops?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID() + "&cmd=A");
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return new ManageConferenceAliases(sig,conf);
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} // end try
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catch (DataException de)
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{ // error generating the display box
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return new ErrorBox("Database Error","Database error displaying aliases: " + de.getMessage(),
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on_error);
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} // end catch
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} // end if ("A" command)
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if (cmd.equals("RP") || cmd.equals("RR"))
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{ // "RP" = "Report Posters," "RR" = "Report Readers" (requires conference parameter)
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ConferenceContext conf = getConferenceParameter(request,sig,true,on_error);
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on_error = "confops?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID() + "&cmd=Q";
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try
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{ // generate the listing on this page
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setMyLocation(request,"confops?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID() + "&cmd=" + cmd);
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return new ConferenceActivity(sig,conf,cmd.equals("RP"));
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} // end try
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catch (DataException de)
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{ // unable to get the data for the list
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return new ErrorBox("Database Error","Database error displaying conference users: " + de.getMessage(),
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on_error);
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} // end catch
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} // end if ("RP" and "RR" commands)
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// Any unrecognized command shows us the conference list.
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on_error = "sigprofile?sig=" + sig.getSIGID();
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try
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{ // make a conference listing
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setMyLocation(request,"confops?sig=" + sig.getSIGID());
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return new ConferenceListing(sig);
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} // end try
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catch (DataException de)
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{ // something wrong in the database
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return new ErrorBox("Database Error","Database error finding conferences: " + de.getMessage(),on_error);
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} // end catch
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catch (AccessError ae)
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{ // some lack of access is causing problems
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return new ErrorBox("Access Error",ae.getMessage(),on_error);
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} // end catch
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} // end doVeniceGet
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protected VeniceContent doVenicePost(HttpServletRequest request, VeniceEngine engine,
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UserContext user, RenderData rdat)
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throws ServletException, IOException, VeniceServletResult
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{
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// get the SIG
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SIGContext sig = getSIGParameter(request,user,true,"top");
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changeMenuSIG(request,sig);
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String on_error = "confops?sig=" + sig.getSIGID();
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// get the command we want to use
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String cmd = getStandardCommandParam(request);
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if (cmd.equals("C"))
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{ // "C" = "Create Conference"
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if (!(sig.canCreateConference()))
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return new ErrorBox("Access Error","You are not permitted to create conferences in this SIG.",
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on_error);
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// load up the create conference dialog!
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CreateConferenceDialog dlg = makeCreateConferenceDialog();
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dlg.setupDialog(engine,sig);
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if (dlg.isButtonClicked(request,"cancel"))
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throw new RedirectResult(on_error); // they chickened out - go back to the conference list
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if (dlg.isButtonClicked(request,"create"))
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{ // OK, they actually want to create the new conference...
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dlg.loadValues(request); // load the form data
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try
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{ // attempt to create the conference!
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ConferenceContext conf = dlg.doDialog(sig);
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// success! redirect to the conference's topic list
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throw new RedirectResult("confdisp?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID());
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} // end try
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catch (ValidationException ve)
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{ // validation error - throw it back to the user
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dlg.resetOnError(ve.getMessage() + " Please try again.");
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} // end catch
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catch (AccessError ae)
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{ // some sort of access error - display an error dialog
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return new ErrorBox("Access Error",ae.getMessage(),on_error);
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} // end catch
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catch (DataException de)
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{ // database error creating the conference
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return new ErrorBox("Database Error","Database error creating conference: " + de.getMessage(),
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on_error);
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} // end catch
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setMyLocation(request,on_error + "&cmd=C");
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return dlg; // redisplay the dialog
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} // end if ("create" button clicked)
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// error - don't know what button was clicked
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logger.error("no known button click on ConfOperations.doPost, cmd=C");
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return new ErrorBox("Internal Error","Unknown command button pressed",on_error);
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} // end if ("C" command)
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if (cmd.equals("T"))
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{ // "T" command = Create New Topic (requires conference parameter)
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ConferenceContext conf = getConferenceParameter(request,sig,true,on_error);
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on_error = "confdisp?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID();
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// determine what to do based on the button pressed
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if (isImageButtonClicked(request,"cancel"))
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throw new RedirectResult(on_error); // the user chickened out - go back to the conference display
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if (isImageButtonClicked(request,"preview"))
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{ // generate a preview and redisplay the form
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NewTopicForm ntf = new NewTopicForm(sig,conf);
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try
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{ // generate a preview display
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ntf.generatePreview(engine,conf,request);
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} // end try
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catch (ValidationException ve)
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{ // something messed up in the preview generation
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return new ErrorBox(null,ve.getMessage(),on_error);
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} // end catch
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if (ntf.isNullRequest())
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return null; // no title or text specified - "204 No Content"
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setMyLocation(request,"confops?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID() + "&cmd=T");
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return ntf;
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} // end if ("preview" clicked)
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if (isImageButtonClicked(request,"post"))
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{ // first validate that we've got all the parameters
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if (validateNewTopic(request,on_error))
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return null; // this is a null request - send a null response
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try
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{ // add the new topic!
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TopicContext topic = conf.addTopic(request.getParameter("title"),request.getParameter("pseud"),
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request.getParameter("pb"));
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final String yes = "Y";
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if (yes.equals(request.getParameter("attach")))
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{ // we need to upload an attachment for this post
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setMyLocation(request,on_error);
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return new AttachmentForm(sig,conf,topic.getMessage(0),on_error);
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} // end if
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} // end try
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catch (DataException de)
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{ // display a database error
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return new ErrorBox("Database Error","Database error adding topic: " + de.getMessage(),on_error);
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} // end catch
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catch (AccessError ae)
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{ // some sort of access problem
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return new ErrorBox("Access Error",ae.getMessage(),on_error);
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} // end catch
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// jump back to the form under normal circumstances
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throw new RedirectResult(on_error);
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} // end if ("post" clicked)
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// we don't know what button was pressed
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logger.error("no known button click on ConfOperations.doPost, cmd=T");
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return new ErrorBox("Internal Error","Unknown command button pressed",on_error);
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} // end if ("T" command)
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if (cmd.equals("P"))
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{ // "P" = Set default pseud (requires conference parameter)
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ConferenceContext conf = getConferenceParameter(request,sig,true,on_error);
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on_error = "confdisp?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID();
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try
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{ // go set the pseud!
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String pseud = request.getParameter("pseud");
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if (pseud!=null)
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conf.setDefaultPseud(pseud);
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} // end try
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catch (DataException de)
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{ // oops - there was a problem!
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return new ErrorBox("Database Error","Database error setting pseud: " + de.getMessage(),on_error);
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} // end catch
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return null; // don't change the view
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} // end if ("P" command)
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if (cmd.equals("E"))
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{ // "E" = "Edit Conference Settings" (requires conference parameter)
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ConferenceContext conf = getConferenceParameter(request,sig,true,on_error);
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on_error = "confops?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID() + "&cmd=Q";
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if (!(conf.canChangeConference()))
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return new ErrorBox("Access Error","You are not permitted to change this conference's settings.",
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on_error);
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// create the dialog class
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EditConferenceDialog dlg = makeEditConferenceDialog();
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if (dlg.isButtonClicked(request,"cancel"))
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throw new RedirectResult(on_error); // they chickened out - go back to the conference list
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if (dlg.isButtonClicked(request,"update"))
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{ // they're changing the conference - do what you have to
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dlg.loadValues(request); // load the form data
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try
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{ // run that baby!
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dlg.doDialog(conf);
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// success - return back to where we started from
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throw new RedirectResult(on_error);
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} // end try
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catch (ValidationException ve)
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{ // validation error - throw it back to the user
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dlg.resetOnError(sig,conf,ve.getMessage() + " Please try again.");
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} // end catch
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catch (AccessError ae)
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{ // some sort of access error - display an error dialog
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return new ErrorBox("Access Error",ae.getMessage(),on_error);
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} // end catch
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catch (DataException de)
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{ // database error creating the conference
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return new ErrorBox("Database Error","Database error updating conference: " + de.getMessage(),
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on_error);
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} // end catch
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setMyLocation(request,"confops?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID() + "&cmd=E");
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return dlg; // redisplay the dialog
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} // end if
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} // end if ("E" command)
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if (cmd.equals("A"))
|
|
{ // "A" = "Add Alias" (requires conference parameter)
|
|
ConferenceContext conf = getConferenceParameter(request,sig,true,on_error);
|
|
on_error = "confops?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID() + "&cmd=Q";
|
|
|
|
if (!(conf.canChangeConference()))
|
|
return new ErrorBox("Access Error","You are not permitted to change this conference's settings.",
|
|
on_error);
|
|
|
|
String new_alias = request.getParameter("alias");
|
|
if (StringUtil.isStringEmpty(new_alias))
|
|
return null; // this is a no-op
|
|
|
|
on_error = "confops?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID() + "&cmd=A";
|
|
String error_message = null;
|
|
|
|
if (IDUtils.isValidVeniceID(new_alias))
|
|
{ // the alias we have netered is perfectly valid...
|
|
try
|
|
{ // go ahead and add the alias!
|
|
conf.addAlias(new_alias);
|
|
|
|
} // end try
|
|
catch (AccessError ae)
|
|
{ // some sort of access error - display an error dialog
|
|
return new ErrorBox("Access Error",ae.getMessage(),on_error);
|
|
|
|
} // end catch
|
|
catch (DataException de)
|
|
{ // database error creating the conference
|
|
return new ErrorBox("Database Error","Database error adding alias: " + de.getMessage(),
|
|
on_error);
|
|
|
|
} // end catch
|
|
|
|
} // end if
|
|
else // alias is not valid
|
|
error_message = "The alias you have entered is not a valid identifier. Please try again.";
|
|
|
|
// redisplay the "Manage Conference Aliases" display
|
|
try
|
|
{ // generate the display box
|
|
setMyLocation(request,on_error);
|
|
return new ManageConferenceAliases(sig,conf);
|
|
|
|
} // end try
|
|
catch (DataException de)
|
|
{ // error generating the display box
|
|
return new ErrorBox("Database Error","Database error displaying aliases: " + de.getMessage(),
|
|
"confops?sig=" + sig.getSIGID() + "&conf=" + conf.getConfID() + "&cmd=Q");
|
|
|
|
} // end catch
|
|
|
|
} // end if ("A" command)
|
|
|
|
// unrecognized command!
|
|
logger.error("invalid command to ConfOperations.doPost: " + cmd);
|
|
return new ErrorBox("Internal Error","Invalid command to ConfOperations.doPost",on_error);
|
|
|
|
} // end doVenicePost
|
|
|
|
} // end class ConfOperations
|