/**
* @see org.olat.search.service.indexer.Indexer#checkAccess(org.olat.core.id.context.ContextEntry,
* org.olat.core.id.context.BusinessControl, org.olat.core.id.Identity,
* org.olat.core.id.Roles)
*/
@Override
public boolean checkAccess(
final ContextEntry contextEntry,
final BusinessControl businessControl,
final Identity identity,
final Roles roles) {
// TODO:chg: check with collabTools if forum is enabled
final ContextEntry ce = businessControl.popLauncherContextEntry();
final Long resourceableId = ce.getOLATResourceable().getResourceableId();
final Message message = ForumManager.getInstance().loadMessage(resourceableId);
Message threadtop = message.getThreadtop();
if (threadtop == null) {
threadtop = message;
}
final boolean isMessageHidden = Status.getStatus(threadtop.getStatusCode()).isHidden();
// assumes that if is owner then is moderator so it is allowed to see the hidden forum threads
// TODO: (LD) fix this!!!
// here it is checked if the identity is owner of the forum tool but it has no way to find out
// whether is owner of the group that owns the forum tool
final boolean isOwner =
BaseSecurityManager.getInstance()
.isIdentityPermittedOnResourceable(
identity, Constants.PERMISSION_ACCESS, contextEntry.getOLATResourceable());
if (isMessageHidden && !isOwner) {
return false;
}
return true;
}
/**
* If the forumCallback is null no filtering is executed, else if a thread is hidden and the user
* doesn't have moderator rights the hidden thread is not included into the archive.
*
* @param forumId
* @param metaInfo
* @return all top message nodes together with their children in a list
*/
private List convertToThreadTrees(final long forumId, final ForumCallback forumCallback) {
List messages;
final List topNodeList = new ArrayList();
final ForumManager fm = ForumManager.getInstance();
final Long l = new Long(forumId);
final Forum f = fm.loadForum(l);
messages = fm.getMessagesByForum(f);
for (final Iterator iterTop = messages.iterator(); iterTop.hasNext(); ) {
final Message msg = (Message) iterTop.next();
if (msg.getParent() == null) {
iterTop.remove();
final MessageNode topNode = new MessageNode(msg);
if (topNode.isHidden()
&& (forumCallback == null
|| (forumCallback != null && forumCallback.mayEditMessageAsModerator()))) {
addChildren(messages, topNode);
topNodeList.add(topNode);
} else if (!topNode.isHidden()) {
addChildren(messages, topNode);
topNodeList.add(topNode);
}
}
}
return getMessagesSorted(topNodeList);
}
private void addChildren(final List messages, final MessageNode mn) {
for (final Iterator iterMsg = messages.iterator(); iterMsg.hasNext(); ) {
final Message msg = (Message) iterMsg.next();
if ((msg.getParent() != null) && (msg.getParent().getKey() == mn.getKey())) {
final MessageNode childNode = new MessageNode(msg);
mn.addChild(childNode);
// FIXME:as:c next line is not necessary
childNode.setParent(mn);
addChildren(messages, childNode);
}
}
}
/**
* @param messageId
* @param metaInfo
* @return the top message node with all its children
*/
private MessageNode convertToThreadTree(final long topMessageId) {
List messages;
MessageNode topNode = null;
final ForumManager fm = ForumManager.getInstance();
final Long l = new Long(topMessageId);
messages = fm.getThread(l);
for (final Iterator iterTop = messages.iterator(); iterTop.hasNext(); ) {
final Message msg = (Message) iterTop.next();
if (msg.getParent() == null) {
iterTop.remove();
topNode = new MessageNode(msg);
addChildren(messages, topNode);
}
}
return topNode;
}