added emergency fix to display a "login or create" dialog for all AccessErrors

thrown by the engine when trying to view a conference/topic/post and the user
is not logged in

src/com/silverwrist/util/StringUtil.java

@@ -278,5 +278,48 @@ public class StringUtil
 
   } // end join
 
-} // end class StringUtil
+  public static final List splitList(String data, String delims)
+  {
+    if ((data==null) || (delims==null))
+      return Collections.EMPTY_LIST;
+    ArrayList rc = new ArrayList();
+    StringBuffer buf = new StringBuffer();
+    boolean accumulate = false;
+    for (int i=0; i<data.length(); i++)
+    { // look at each character in turn
+      char ch = data.charAt(i);
+      if (delims.indexOf(ch)>=0)
+      { // delimiter character - flush the string if we have one
+        if (accumulate)
+        { // flush the buffer
+          rc.add(buf.toString());
+          buf.setLength(0);
+          accumulate = false;
 
+        } // end if
+
+      } // end if
+      else
+      { // ordinary character - accumulate it
+        accumulate = true;
+        buf.append(ch);
+
+      } // end else
+
+    } // end for
+
+    if (rc.isEmpty())
+      return Collections.EMPTY_LIST;
+    else
+      return Collections.unmodifiableList(rc);
+
+  } // end splitList
+
+  public static final String[] splitArray(String data, String delims)
+  {
+    List tmp = splitList(data,delims);
+    return (String[])(tmp.toArray(new String[0]));
+
+  } // end splitArray
+
+} // end class StringUtil

src/com/silverwrist/venice/core/CommunityContext.java

@@ -164,6 +164,8 @@ public interface CommunityContext extends SearchMode
 
   public abstract void delete() throws DataException, AccessError;
 
+  public abstract void deleteCommunity() throws DataException, AccessError;
+
   public abstract void sendInvitation(String address, String personal_message)
       throws AccessError, DataException, EmailException;
 

src/com/silverwrist/venice/core/ConferenceContext.java

@@ -147,6 +147,8 @@ public interface ConferenceContext
 
   public abstract void delete() throws DataException, AccessError;
 
+  public abstract void deleteConference() throws DataException, AccessError;
+
   public abstract boolean canDeleteConference();
 
   public abstract boolean isInHotlist();

src/com/silverwrist/venice/core/SideBoxDescriptor.java

@@ -21,6 +21,8 @@ public interface SideBoxDescriptor
 {
   public abstract int getID();
 
+  public abstract int getSideBoxID();
+
   public abstract int getSequence();
 
   public abstract String getTitle(boolean anonymous);

src/com/silverwrist/venice/core/TopicContext.java

@@ -81,6 +81,8 @@ public interface TopicContext
 
   public abstract void delete() throws DataException, AccessError;
 
+  public abstract void deleteTopic() throws DataException, AccessError;
+
   public abstract List getActivePosters(int skip, int limit) throws DataException, AccessError;
 
   public abstract List getActivePosters(int limit) throws DataException, AccessError;

src/com/silverwrist/venice/core/impl/CommunityUserContextImpl.java

@@ -1193,6 +1193,12 @@ class CommunityUserContextImpl implements CommunityContext, CommunityBackend
 
   } // end delete
 
+  public void deleteCommunity() throws DataException, AccessError
+  {
+    this.delete();
+
+  } // end delete
+
   public void sendInvitation(String address, String personal_message)
       throws AccessError, DataException, EmailException
   {

src/com/silverwrist/venice/core/impl/ConferenceUserContextImpl.java

@@ -875,7 +875,7 @@ class ConferenceUserContextImpl implements ConferenceContext, ConferenceBackend
   {
     if (!(getConferenceData().canReadConference(level)))
     { // the luser can't even read the conference...
-      logger.error("getTopic(): user not permitted to change membership");
+      logger.error("getTopic(): user not permitted to read");
       throw new AccessError("You are not permitted to read this conference.");
 
     } // end if
@@ -1253,6 +1253,12 @@ class ConferenceUserContextImpl implements ConferenceContext, ConferenceBackend
 
   } // end delete
 
+  public void deleteConference() throws DataException, AccessError
+  {
+    this.delete();
+
+  } // end deleteConference
+
   public boolean canDeleteConference()
   {
     ConferenceCommunityContext c = getConferenceDataNE();

src/com/silverwrist/venice/core/impl/SideBoxDescriptorImpl.java

@@ -66,6 +66,12 @@ class SideBoxDescriptorImpl implements UserSideBoxDescriptor
 
   } // end getID
 
+  public int getSideBoxID()
+  {
+    return parent.getID();
+
+  } // end getSideBoxID
+
   public int getSequence()
   {
     return sequence;

src/com/silverwrist/venice/core/impl/TopicUserContextImpl.java

@@ -958,6 +958,12 @@ class TopicUserContextImpl implements TopicContext
 
   } // end delete
 
+  public void deleteTopic() throws DataException, AccessError
+  {
+    this.delete();
+
+  } // end deleteTopic
+
   public List getActivePosters(int skip, int limit) throws DataException
   {
     Connection conn = null;

src/com/silverwrist/venice/core/impl/VeniceEngineImpl.java

@@ -84,6 +84,12 @@ public class VeniceEngineImpl implements VeniceEngine, EngineBackend
 
     } // end getID
 
+    public int getSideBoxID()
+    {
+      return id;
+
+    } // end getSideBoxID
+
     public int getSequence()
     {
       return -1;

src/com/silverwrist/venice/security/AuditRecord.java

@@ -72,9 +72,10 @@ public class AuditRecord implements AuditData
       if (rc==null)
       { // OK, get it from the database
 	ResultSet rs = stmt.executeQuery("SELECT username FROM users WHERE uid = " + uid + ";");
-	if (!(rs.next()))
-	  throw new DataException("user name not found for UID " + uid);
-	rc = rs.getString(1);
+	if (rs.next())
+          rc = rs.getString(1);
+	else
+	  rc = "(UID #" + uid + ")";
 	uname_cache.put(uid_x,rc);
 
       } // end if
@@ -92,9 +93,10 @@ public class AuditRecord implements AuditData
       if (rc==null)
       { // OK, get it from the database
 	ResultSet rs = stmt.executeQuery("SELECT signame FROM sigs WHERE sigid = " + cid + ";");
-	if (!(rs.next()))
-	  throw new DataException("community name not found for community ID " + cid);
-	rc = rs.getString(1);
+	if (rs.next())
+	  rc = rs.getString(1);
+	else
+	  rc = "(CID #" + cid + ")";
 	commname_cache.put(cid_x,rc);
 
       } // end if

src/com/silverwrist/venice/servlets/CommunityOperations.java

@@ -318,7 +318,7 @@ public class CommunityOperations extends VeniceServlet
 	if (user.isLoggedIn())
 	  return new ErrorBox("Community Error","You are not permitted to create communities.","top");
 	else
-	  return new ErrorBox("Community Error","You must be logged in to create a new community.","top");
+	  return new LogInOrCreate("sigops?cmd=C");
 
       } // end if
 

src/com/silverwrist/venice/servlets/ConfDisplay.java

@@ -348,14 +348,15 @@ public class ConfDisplay extends VeniceServlet
     ConferenceContext conf = getConferenceParameter(request,comm,true,"top");
 
     // get the topic, if we have it
-    TopicContext topic = getTopicParameter(request,conf,false,"top");
+    TopicContext topic = getTopicParameter(request,user,conf,false,"top",
+					   "confdisp?" + request.getQueryString());
 
     if (topic!=null)
     { // we're handling messages within a single topic
       if (logger.isDebugEnabled())
 	logger.debug("MODE: display messages in topic");
       String on_error = "confdisp?sig=" + comm.getCommunityID() + "&conf=" + conf.getConfID();
-      setMyLocation(request,on_error + "&topic=" + topic.getTopicNumber());
+      setMyLocation(request,on_error + "&top=" + topic.getTopicNumber());
 
       // if this request is restoring the number of unread posts in another topic, try to do so
       boolean do_readnew = restorePosts(request,conf,topic);
@@ -380,7 +381,10 @@ public class ConfDisplay extends VeniceServlet
       } // end catch
       catch (AccessError ae)
       { // we were unable to retrieve the message list
-	return new ErrorBox("Access Error",ae.getMessage(),on_error);
+	if (user.isLoggedIn())
+	  return new ErrorBox("Access Error",ae.getMessage(),on_error);
+	else
+	  return new LogInOrCreate(getMyLocation(request));
 
       } // end catch
 
@@ -393,7 +397,7 @@ public class ConfDisplay extends VeniceServlet
       String my_location = "confdisp?sig=" + comm.getCommunityID() + "&conf=" + conf.getConfID();
       boolean read_new = !(StringUtil.isStringEmpty(request.getParameter("rnm")));
       if (read_new)
-	my_location += "&rn=1";
+	my_location += "&rnm=1";
       setMyLocation(request,my_location);
 
       // get any changes to view or sort options
@@ -441,7 +445,10 @@ public class ConfDisplay extends VeniceServlet
 	} // end catch
 	catch (AccessError ae)
 	{ // we were unable to retrieve the message list
-	  return new ErrorBox("Access Error",ae.getMessage(),on_error);
+	  if (user.isLoggedIn())
+	    return new ErrorBox("Access Error",ae.getMessage(),on_error);
+	  else
+	    return new LogInOrCreate(getMyLocation(request));
 
 	} // end catch
 
@@ -462,7 +469,10 @@ public class ConfDisplay extends VeniceServlet
 	} // end catch
 	catch (AccessError ae)
 	{ // we were unable to retrieve the topic list
-	  return new ErrorBox("Access Error",ae.getMessage(),on_error);
+	  if (user.isLoggedIn())
+	    return new ErrorBox("Access Error",ae.getMessage(),on_error);
+	  else
+	    return new LogInOrCreate(getMyLocation(request));
 
 	} // end catch
 

src/com/silverwrist/venice/servlets/ConfOperations.java

@@ -710,8 +710,8 @@ public class ConfOperations extends VeniceServlet
 	String message = "You are about to permanently delete the \"" + conf.getName() + "\" conference!  "
 	               + "Are you sure you want to do this?";
 	return new ConfirmBox(request,DELETE_CONFIRM_ATTR,DELETE_CONFIRM_PARAM,"Delete Conference",message,
-			      "confops?sig=" + comm.getCommunityID() + "&conf=" + conf.getConfID() + "&cmd=DEL",
-			      on_error);
+			      "confops?sig=" + comm.getCommunityID() + "&conf=" + conf.getConfID()
+                              + "&cmd=DEL",on_error);
 
       } // end else
 
@@ -732,7 +732,14 @@ public class ConfOperations extends VeniceServlet
     } // end catch
     catch (AccessError ae)
     { // some lack of access is causing problems
-      return new ErrorBox("Access Error",ae.getMessage(),on_error);
+      if (user.isLoggedIn())
+	return new ErrorBox("Access Error",ae.getMessage(),on_error);
+      else
+      { // they might need to log in first
+	setMyLocation(request,"confops?sig=" + comm.getCommunityID());
+	return new LogInOrCreate("confops?sig=" + comm.getCommunityID());
+
+      } // end else
 
     } // end catch
 

src/com/silverwrist/venice/servlets/VeniceServlet.java

@@ -108,8 +108,9 @@ public abstract class VeniceServlet extends HttpServlet
 
   } // end getCommunityParameter
 
-  private static TopicContext getTopicParameter(String str, ConferenceContext conf, boolean required,
-						String on_error) throws ErrorBox
+  private static TopicContext getTopicParameter(String str, UserContext user, ConferenceContext conf,
+						boolean required, String on_error, String target)
+    throws ErrorBox, LogInOrCreate
   {
     if (StringUtil.isStringEmpty(str))
     { // there's no topic parameter
@@ -153,6 +154,9 @@ public abstract class VeniceServlet extends HttpServlet
     } // end catch
     catch (AccessError ae)
     { // these all get handled in pretty much the same way
+      logger.error("getTopicParameter(): Access error retrieving topic parameter");
+      if ((user!=null) && (target!=null) && !(user.isLoggedIn()))
+	throw new LogInOrCreate(target);
       throw new ErrorBox("Access Error",ae.getMessage(),on_error);
 
     } // end catch
@@ -454,19 +458,29 @@ public abstract class VeniceServlet extends HttpServlet
   } // end getConferenceParameter
 
   protected final static TopicContext getTopicParameter(ServletRequest request, ConferenceContext conf,
-							boolean required, String on_error) throws ErrorBox
+							boolean required, String on_error)
+      throws ErrorBox, LogInOrCreate
   {
-    return getTopicParameter(request.getParameter("top"),conf,required,on_error);
+    return getTopicParameter(request.getParameter("top"),null,conf,required,on_error,null);
+
+  } // end getTopicParameter
+
+  protected final static TopicContext getTopicParameter(ServletRequest request, UserContext user,
+							ConferenceContext conf, boolean required,
+							String on_error, String target)
+      throws ErrorBox, LogInOrCreate
+  {
+    return getTopicParameter(request.getParameter("top"),user,conf,required,on_error,target);
 
   } // end getTopicParameter
 
   protected final static TopicContext getTopicParameter(ServletMultipartHandler mphandler,
 							ConferenceContext conf, boolean required,
-							String on_error) throws ErrorBox
+							String on_error) throws ErrorBox, LogInOrCreate
   {
     if (mphandler.isFileParam("top"))
       throw new ErrorBox(null,"Internal Error: topic should be a normal param",on_error);
-    return getTopicParameter(mphandler.getValue("top"),conf,required,on_error);
+    return getTopicParameter(mphandler.getValue("top"),null,conf,required,on_error,null);
 
   } // end getTopicParameter
 
@@ -511,10 +525,16 @@ public abstract class VeniceServlet extends HttpServlet
    *--------------------------------------------------------------------------------
    */
 
+  protected String getMyLocation(HttpServletRequest request)
+  {
+    return (String)(request.getAttribute(LOCATION_ATTR));
+
+  } // end getMyLocation
+
   protected String getMyLocation(HttpServletRequest request, VeniceEngine engine, UserContext user,
 				 RenderData rdat)
   {
-    return (String)(request.getAttribute(LOCATION_ATTR));
+    return getMyLocation(request);
 
   } // end getMyLocation
 

src/com/silverwrist/venice/servlets/format/LogInOrCreate.java

@@ -0,0 +1,112 @@
+/*
+ * The contents of this file are subject to the Mozilla Public License Version 1.1
+ * (the "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
+ * 
+ * Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
+ * WARRANTY OF ANY KIND, either express or implied. See the License for the specific
+ * language governing rights and limitations under the License.
+ * 
+ * The Original Code is the Venice Web Communities System.
+ * 
+ * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
+ * for Silverwrist Design Studios.  Portions created by Eric J. Bowersox are
+ * Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
+ * 
+ * Contributor(s): 
+ */
+package com.silverwrist.venice.servlets.format;
+
+import java.net.URLEncoder;
+import java.io.Writer;
+import java.io.IOException;
+import javax.servlet.*;
+import com.silverwrist.util.StringUtil;
+import com.silverwrist.venice.servlets.VeniceServletResult;
+
+public class LogInOrCreate extends VeniceServletResult implements JSPRender, ColorSelectors
+{
+  /*--------------------------------------------------------------------------------
+   * Static data members
+   *--------------------------------------------------------------------------------
+   */
+
+  // Attribute name for request attribute
+  protected static final String ATTR_NAME = "com.silverwrist.venice.content.LogInOrCreate";
+
+  /*--------------------------------------------------------------------------------
+   * Attributes
+   *--------------------------------------------------------------------------------
+   */
+
+  private String target;
+
+  /*--------------------------------------------------------------------------------
+   * Constructor
+   *--------------------------------------------------------------------------------
+   */
+
+  public LogInOrCreate(String target)
+  {
+    super();
+    this.target = target;
+    
+  } // end constructor
+
+  /*--------------------------------------------------------------------------------
+   * External static functions
+   *--------------------------------------------------------------------------------
+   */
+
+  public static LogInOrCreate retrieve(ServletRequest request)
+  {
+    return (LogInOrCreate)(request.getAttribute(ATTR_NAME));
+
+  } // end retrieve
+
+  /*--------------------------------------------------------------------------------
+   * Implementations from interface VeniceContent
+   *--------------------------------------------------------------------------------
+   */
+
+  public String getPageTitle(RenderData rdat)
+  {
+    return "Log In or Create Account";
+
+  } // end getPageTitle
+
+  public String getPageQID()
+  {
+    return null;
+
+  } // end getPageQID
+
+  /*--------------------------------------------------------------------------------
+   * Implementations from interface JSPRender
+   *--------------------------------------------------------------------------------
+   */
+
+  public void store(ServletRequest request)
+  {
+    request.setAttribute(ATTR_NAME,this);
+
+  } // end store
+
+  public String getTargetJSPName()
+  {
+    return "login_or_create.jsp";
+
+  } // end getTargetJSPName
+
+  /*--------------------------------------------------------------------------------
+   * External operations
+   *--------------------------------------------------------------------------------
+   */
+
+  public String getTargetURL(RenderData rdat, String base_URL)
+  {
+    return rdat.getEncodedServletPath(base_URL + URLEncoder.encode(target));
+
+  } // end getTargetURL
+
+} // end class LogInOrCreate

web/format/import_form.jsp

@@ -39,4 +39,4 @@
     The user accounts are imported as an XML file.
     <%-- TODO: put a description of the contents here, or a link to a DTD --%>
   </FONT></DIV>
-</FORM>
+</FORM>

web/format/login_or_create.jsp

@@ -0,0 +1,32 @@
+<%--
+  The contents of this file are subject to the Mozilla Public License Version 1.1
+  (the "License"); you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
+
+  Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
+  WARRANTY OF ANY KIND, either express or implied. See the License for the specific
+  language governing rights and limitations under the License.
+  
+  The Original Code is the Venice Web Communities System.
+  
+  The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
+  for Silverwrist Design Studios.  Portions created by Eric J. Bowersox are
+  Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
+
+  Contributor(s): 
+--%>
+<%@ page import = "java.util.*" %>
+<%@ page import = "com.silverwrist.util.StringUtil" %>
+<%@ page import = "com.silverwrist.venice.core.*" %>
+<%@ page import = "com.silverwrist.venice.servlets.Variables" %>
+<%@ page import = "com.silverwrist.venice.servlets.format.*" %>
+<%
+  LogInOrCreate data = LogInOrCreate.retrieve(request);
+  RenderData rdat = RenderConfig.createRenderData(application,request,response);
+%>
+<% rdat.writeContentHeader(out,"Log In or Create Account",null); %>
+<%= rdat.getStdFontTag(ColorSelectors.CONTENT_FOREGROUND,2) %>
+  You must log in or create an account before you can view this page.<P>
+  Returning users <A HREF="<%= data.getTargetURL(rdat,"account?cmd=L&tgt=") %>">log in here</A>.<P>
+  New users <A HREF="<%= data.getTargetURL(rdat,"account?cmd=C&tgt=") %>">create an account here.<P>
+</FONT>