From 889d521e05f2e922683d48c74eb00290e7a2f548 Mon Sep 17 00:00:00 2001
From: Sadie Powell
Date: Wed, 17 Jul 2024 00:06:50 +0100
Subject: Shuffle the modules about a bit.

---
 modules/passforward.cpp | 103 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 modules/passforward.cpp

(limited to 'modules/passforward.cpp')

diff --git a/modules/passforward.cpp b/modules/passforward.cpp
new file mode 100644
index 000000000..5610540a9
--- /dev/null
+++ b/modules/passforward.cpp
@@ -0,0 +1,103 @@
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ *   Copyright (C) 2019-2024 Sadie Powell <sadie@witchery.services>
+ *   Copyright (C) 2019 linuxdaemon <linuxdaemon.irc@gmail.com>
+ *   Copyright (C) 2014 Googolplexed <googol@googolplexed.net>
+ *   Copyright (C) 2012 Robby <robby@chatbelgie.be>
+ *   Copyright (C) 2012 Attila Molnar <attilamolnar@hush.com>
+ *   Copyright (C) 2010 Daniel De Graaf <danieldg@inspircd.org>
+ *
+ * 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 "modules/account.h"
+#include "stringutils.h"
+
+class ModulePassForward final
+	: public Module
+{
+private:
+	Account::API accountapi;
+	std::string nickrequired, forwardmsg, forwardcmd;
+
+public:
+	ModulePassForward()
+		: Module(VF_VENDOR, "Allows an account password to be forwarded to a services pseudoclient such as NickServ.")
+		, accountapi(this)
+	{
+	}
+
+	void ReadConfig(ConfigStatus& status) override
+	{
+		const auto& tag = ServerInstance->Config->ConfValue("passforward");
+		nickrequired = tag->getString("nick", "NickServ");
+		forwardmsg = tag->getString("forwardmsg", "NOTICE %nick% :*** Forwarding password to %nickrequired%");
+		forwardcmd = tag->getString("cmd", "SQUERY %nickrequired% :IDENTIFY %nick% %pass%", 1);
+	}
+
+	std::string FormatStr(const LocalUser* user, const std::string& format, const std::string& pass)
+	{
+		return Template::Replace(format, {
+			{ "nick",         user->nick,          },
+			{ "nickrequired", nickrequired,        },
+			{ "pass",         pass,                },
+			{ "user",         user->GetRealUser(), },
+		});
+	}
+
+	void OnPostConnect(User* ruser) override
+	{
+		LocalUser* user = IS_LOCAL(ruser);
+		if (!user || user->password.empty())
+			return;
+
+		// If the connect class requires a password, don't forward it
+		if (!user->GetClass()->password.empty())
+			return;
+
+		if (accountapi && accountapi->GetAccountName(user))
+		{
+			// User is logged in already (probably via SASL) don't forward the password
+			return;
+		}
+
+		ForwardPass(user, user->password);
+	}
+
+	void OnPostCommand(Command* command, const CommandBase::Params& parameters, LocalUser* user, CmdResult result, bool loop) override
+	{
+		if (command->name == "NICK" && parameters.size() > 1)
+			ForwardPass(user, parameters[1]);
+	}
+
+	void ForwardPass(LocalUser* user, const std::string& pass)
+	{
+		if (!nickrequired.empty())
+		{
+			/* Check if nick exists and is on a services server. */
+			auto* u = ServerInstance->Users.Find(nickrequired);
+			if (!u || !u->server->IsService())
+				return;
+		}
+
+		if (!forwardmsg.empty())
+			ServerInstance->Parser.ProcessBuffer(user, FormatStr(user, forwardmsg, pass));
+
+		ServerInstance->Parser.ProcessBuffer(user, FormatStr(user, forwardcmd, pass));
+	}
+};
+
+MODULE_INIT(ModulePassForward)
-- 
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