From 28a1967177d055fbbd30b18864209721b8075ce1 Mon Sep 17 00:00:00 2001
From: w00t <w00t@e03df62e-2008-0410-955e-edbf42e46eb7>
Date: Mon, 21 Apr 2008 20:54:37 +0000
Subject: Hack, hack, hack, hack hack. Hack hack. Probably fix snotice loops,
 though.

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@9573 e03df62e-2008-0410-955e-edbf42e46eb7
---
 include/snomasks.h                         |  7 +++++++
 src/modules/m_spanningtree/treesocket2.cpp | 25 +++++++++++++++++++++++++
 src/snomasks.cpp                           | 12 ++++++++++++
 3 files changed, 44 insertions(+)

diff --git a/include/snomasks.h b/include/snomasks.h
index 5bd4742c1..d4bd8a22c 100644
--- a/include/snomasks.h
+++ b/include/snomasks.h
@@ -91,6 +91,13 @@ class CoreExport SnomaskManager : public Extensible
 	 */
 	bool DisableSnomask(char letter);
 
+	/** Set the local only message state of a given snomask.
+	 * This is used by remote stuff to prevent endless recursion in sending
+	 * XXX this is currently a really shit way to do it, as it effectively
+	 * bypasses snomask compression!
+	 */
+	bool SetLocalOnly(char letter, bool local);
+
 	/** Write to all users with a given snomask.
 	 * @param letter The snomask letter to write to
 	 * @param text The text to send to the users
diff --git a/src/modules/m_spanningtree/treesocket2.cpp b/src/modules/m_spanningtree/treesocket2.cpp
index 8700d57a2..3cd2f8920 100644
--- a/src/modules/m_spanningtree/treesocket2.cpp
+++ b/src/modules/m_spanningtree/treesocket2.cpp
@@ -490,7 +490,32 @@ bool TreeSocket::ProcessLine(std::string &line)
 			{
 				if (params.size() >= 2)
 				{
+					/*
+					 * XXX:
+					 * The SetLocalOnly stuff here is to work around a bit of a nasty recursion bug.
+					 * WriteToSnoMask() sends global snotices out globally, but of course this is a problem
+				 	 * when triggering it from an already global snotice (yay loops).
+					 *
+					 * The current (horrible) solution I'm implementing here because nobody else seems to
+					 * want to look at this except me, sets the snotice local-only temporarily, sends the snotice
+					 * and then flushes the snomask.
+					 *
+					 * This works, but it is total and utter garbage, as it bypasses the snotice compression
+					 * totally for this snomask (and may well trigger other snotices to send too early.....)
+					 * but at least it won't crash the server.
+					 *
+					 * Master of hacks, we salute you!
+					 * 		-- w00t
+					 */
+
+					// If we get a SNONOTICE, it must have been global... so set it local
+					Instance->SNO->SetLocalOnly(*(params[0].c_str()), true);
+					// send the message
 					Instance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + (ServerSource ? ServerSource->GetName().c_str() : prefix) + ": "+ params[1]);
+					// flush the queue
+					Instance->SNO->FlushSnotices();
+					// set it global again
+					Instance->SNO->SetLocalOnly(*(params[0].c_str()), true);
 				}
 				return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
 			}
diff --git a/src/snomasks.cpp b/src/snomasks.cpp
index e6323b50c..2ab473b45 100644
--- a/src/snomasks.cpp
+++ b/src/snomasks.cpp
@@ -40,6 +40,18 @@ void SnomaskManager::FlushSnotices()
 	}
 }
 
+bool SnomaskManager::SetLocalOnly(char letter, bool local)
+{
+	SnoList::iterator n = SnoMasks.find(letter);
+	if (n != SnoMasks.end())
+	{
+		n->second->LocalOnly = local;
+		return n->second->LocalOnly;
+	}
+
+	throw "snomask not found wtf";
+}
+
 bool SnomaskManager::EnableSnomask(char letter, const std::string &type, bool local)
 {
 	if (SnoMasks.find(letter) == SnoMasks.end())
-- 
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