1 files changed, 104 insertions, 0 deletions
diff --git a/src/modules/m_spanningtree/servercommand.h b/src/modules/m_spanningtree/servercommand.h
new file mode 100644
index 000000000..84488bd68
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+++ b/src/modules/m_spanningtree/servercommand.h
@@ -0,0 +1,104 @@
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ *   Copyright (C) 2013 Attila Molnar <attilamolnar@hush.com>
+ *
+ * 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/>.
+ */
+
+
+#pragma once
+
+#include "utils.h"
+#include "treeserver.h"
+
+class ProtocolException : public ModuleException
+{
+ public:
+	ProtocolException(const std::string& msg)
+		: ModuleException("Protocol violation: " + msg)
+	{
+	}
+};
+
+/** Base class for server-to-server commands that may have a (remote) user source or server source.
+ */
+class ServerCommand : public CommandBase
+{
+ public:
+	ServerCommand(Module* Creator, const std::string& Name, unsigned int MinPara = 0, unsigned int MaxPara = 0);
+
+	/** Register this object in the ServerCommandManager
+	 */
+	void RegisterService() CXX11_OVERRIDE;
+
+	virtual CmdResult Handle(User* user, std::vector<std::string>& parameters) = 0;
+	RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters) CXX11_OVERRIDE;
+
+	/**
+	 * Extract the TS from a string.
+	 * @param tsstr The string containing the TS.
+	 * @return The raw timestamp value.
+	 * This function throws a ProtocolException if it considers the TS invalid. Note that the detection of
+	 * invalid timestamps is not designed to be bulletproof, only some cases - like "0" - trigger an exception.
+	 */
+	static time_t ExtractTS(const std::string& tsstr);
+};
+
+/** Base class for server-to-server command handlers which are only valid if their source is a user.
+ * When a server sends a command of this type and the source is a server (sid), the link is aborted.
+ */
+template <class T>
+class UserOnlyServerCommand : public ServerCommand
+{
+ public:
+	UserOnlyServerCommand(Module* Creator, const std::string& Name, unsigned int MinPara = 0, unsigned int MaxPara = 0)
+		: ServerCommand(Creator, Name, MinPara, MaxPara) { }
+
+	CmdResult Handle(User* user, std::vector<std::string>& parameters) CXX11_OVERRIDE
+	{
+		RemoteUser* remoteuser = IS_REMOTE(user);
+		if (!remoteuser)
+			throw ProtocolException("Invalid source");
+		return static_cast<T*>(this)->HandleRemote(remoteuser, parameters);
+	}
+};
+
+/** Base class for server-to-server command handlers which are only valid if their source is a server.
+ * When a server sends a command of this type and the source is a user (uuid), the link is aborted.
+ */
+template <class T>
+class ServerOnlyServerCommand : public ServerCommand
+{
+ public:
+	ServerOnlyServerCommand(Module* Creator, const std::string& Name, unsigned int MinPara = 0, unsigned int MaxPara = 0)
+		: ServerCommand(Creator, Name, MinPara, MaxPara) { }
+
+	CmdResult Handle(User* user, std::vector<std::string>& parameters) CXX11_OVERRIDE
+	{
+		if (!IS_SERVER(user))
+			throw ProtocolException("Invalid source");
+		TreeServer* server = TreeServer::Get(user);
+		return static_cast<T*>(this)->HandleServer(server, parameters);
+	}
+};
+
+class ServerCommandManager
+{
+	typedef TR1NS::unordered_map<std::string, ServerCommand*> ServerCommandMap;
+	ServerCommandMap commands;
+
+ public:
+	ServerCommand* GetHandler(const std::string& command) const;
+	bool AddCommand(ServerCommand* cmd);
+};