From 252821272458714000f772a03770e56bc6ebf4bb Mon Sep 17 00:00:00 2001
From: danieldg <danieldg@e03df62e-2008-0410-955e-edbf42e46eb7>
Date: Tue, 9 Feb 2010 02:22:36 +0000
Subject: Add authorization cache module

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@12405 e03df62e-2008-0410-955e-edbf42e46eb7
---
 src/modules/account.h       |   2 +-
 src/modules/m_authcache.cpp | 114 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 115 insertions(+), 1 deletion(-)
 create mode 100644 src/modules/m_authcache.cpp

diff --git a/src/modules/account.h b/src/modules/account.h
index 88b86f8e2..8f4631cc8 100644
--- a/src/modules/account.h
+++ b/src/modules/account.h
@@ -30,7 +30,7 @@ class AccountEvent : public Event
 
 typedef StringExtItem AccountExtItem;
 
-inline const AccountExtItem* GetAccountExtItem()
+inline AccountExtItem* GetAccountExtItem()
 {
 	return static_cast<AccountExtItem*>(ServerInstance->Extensions.GetItem("accountname"));
 }
diff --git a/src/modules/m_authcache.cpp b/src/modules/m_authcache.cpp
new file mode 100644
index 000000000..c87938f85
--- /dev/null
+++ b/src/modules/m_authcache.cpp
@@ -0,0 +1,114 @@
+/*       +------------------------------------+
+ *       | Inspire Internet Relay Chat Daemon |
+ *       +------------------------------------+
+ *
+ *  InspIRCd: (C) 2002-2010 InspIRCd Development Team
+ * See: http://wiki.inspircd.org/Credits
+ *
+ * This program is free but copyrighted software; see
+ *            the file COPYING for details.
+ *
+ * ---------------------------------------------------
+ */
+
+#include "inspircd.h"
+#include "account.h"
+#include "ssl.h"
+
+// Password description - method, authdata
+typedef std::pair<std::string, std::string> passdesc;
+typedef std::multimap<std::string,passdesc> AuthMap;
+
+class ModuleAuthCache : public Module
+{
+	AuthMap usernames;
+
+ public:
+	ModuleAuthCache()
+	{
+	}
+
+	void init()
+	{
+		Implementation eventlist[] = { I_OnCheckReady, I_OnDecodeMetaData, I_OnSyncNetwork };
+		ServerInstance->Modules->Attach(eventlist, this, 3);
+	}
+
+	void OnSyncNetwork(Module* proto, void* opaque)
+	{
+		for(AuthMap::iterator it = usernames.begin(); it != usernames.end(); it++)
+			proto->ProtoSendMetaData(opaque, NULL, "authcache", it->second.first +
+				" " + it->first + " " + it->second.second);
+	}
+
+	void OnDecodeMetaData(Extensible* dest, const std::string& name, const std::string& value)
+	{
+		if (dest || name != "authcache")
+			return;
+		irc::spacesepstream splitter(value);
+		std::string method, id, data;
+		splitter.GetToken(method);
+		splitter.GetToken(id);
+		data = splitter.GetRemaining();
+
+		std::pair<AuthMap::iterator, AuthMap::iterator> it = usernames.equal_range(id);
+		while (it.first != it.second)
+		{
+			if (it.first->second.first == method)
+			{
+				usernames.erase(it.first);
+				break;
+			}
+			it.first++;
+		}
+
+		if (!data.empty())
+		{
+			usernames.insert(std::make_pair(id, std::make_pair(method, data)));
+		}
+	}
+
+	ModResult OnCheckReady(LocalUser* user)
+	{
+		std::string login;
+
+		std::pair<AuthMap::iterator, AuthMap::iterator> it = usernames.equal_range(user->nick);
+		while (it.first != it.second)
+		{
+			if (!ServerInstance->PassCompare(user, it.first->second.second, user->password, it.first->second.first))
+				login = user->nick;
+			it.first++;
+		}
+
+		SocketCertificateRequest req(&user->eh, this);
+		req.Send();
+		if (req.cert)
+		{
+			it = usernames.equal_range(req.cert->GetFingerprint());
+			while (it.first != it.second)
+			{
+				if (it.first->second.first == "sslfp")
+					login = it.first->second.second;
+				it.first++;
+			}
+		}
+
+		if (!login.empty())
+		{
+			AccountExtItem* ext = GetAccountExtItem();
+			if (ext)
+			{
+				ext->set(user, login);
+				AccountEvent(this, user, login).Send();
+			}
+		}
+		return MOD_RES_PASSTHRU;
+	}
+
+	Version GetVersion()
+	{
+		return Version("Provides an authorization cache for user accounts", VF_OPTCOMMON | VF_VENDOR);
+	}
+};
+
+MODULE_INIT(ModuleAuthCache)
-- 
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