From 38fa27876d05edecbf9f238947d18d1319ca2757 Mon Sep 17 00:00:00 2001
From: Sadie Powell
Date: Sat, 28 Aug 2021 23:45:26 +0100
Subject: Forward SQUERY to services instead of downgrading it to PRIVMSG.

---
 src/modules/m_spanningtree/compat.cpp | 59 +++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 src/modules/m_spanningtree/compat.cpp

(limited to 'src/modules/m_spanningtree/compat.cpp')

diff --git a/src/modules/m_spanningtree/compat.cpp b/src/modules/m_spanningtree/compat.cpp
new file mode 100644
index 000000000..1efe86316
--- /dev/null
+++ b/src/modules/m_spanningtree/compat.cpp
@@ -0,0 +1,59 @@
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ *   Copyright (C) 2021 Sadie Powell <sadie@witchery.services>
+ *
+ * This file is part of InspIRCd.  InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "inspircd.h"
+#include "main.h"
+
+void TreeSocket::WriteLine(const std::string& original_line)
+{
+	if (LinkState != CONNECTED || proto_version == PROTO_NEWEST)
+	{
+		// Don't translate connections which have negotiated PROTO_NEWEST or
+		// where the protocol hasn't been negotiated yet.
+		WriteLineInternal(original_line);
+		return;
+	}
+
+	std::string line = original_line;
+	size_t cmdstart = 0;
+
+	if (line[0] == '@') // Skip the tags.
+		cmdstart = line.find(' ', cmdstart + 1);
+
+	if (line[0] == ':') // Skip the prefix.
+		cmdstart = line.find(' ', cmdstart + 1);
+
+	// Find the end of the command.
+	size_t cmdend = line.find(' ', cmdstart + 1);
+	if (cmdend == std::string::npos)
+		cmdend = line.size();
+
+	std::string command(line, cmdstart + 1, cmdend - cmdstart - 1);
+	if (proto_version == PROTO_INSPIRCD_30)
+	{
+		if (irc::equals(command, "SQUERY"))
+		{
+			// SQUERY was introduced in PROTO_INSPIRCD_40_A1; convert to PRIVMSG.
+			line.replace(cmdstart + 1, cmdend - cmdstart - 1, "PRIVMSG");
+		}
+	}
+
+	WriteLineInternal(line);
+	return;
+}
-- 
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