Merge insp20

[user/henk/code/inspircd.git] / src / modules / m_spanningtree / servercommand.h

diff --git a/src/modules/m_spanningtree/servercommand.h b/src/modules/m_spanningtree/servercommand.h
index 4311dd7b7f9af79bb5f53c1f7b5fcbfcad904fd2..524520a88aa0f2a2157ceec48cb348b7b8b8988b 100644 (file)
--- a/src/modules/m_spanningtree/servercommand.h
+++ b/src/modules/m_spanningtree/servercommand.h
@@ -19,6 +19,20 @@
 
 #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:
@@ -26,6 +40,53 @@ class ServerCommand : public CommandBase
 
        virtual CmdResult Handle(User* user, std::vector<std::string>& parameters) = 0;
        virtual RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters);
+
+       /**
+        * 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)
+       {
+               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)
+       {
+               if (!IS_SERVER(user))
+                       throw ProtocolException("Invalid source");
+               TreeServer* server = TreeServer::Get(user);
+               return static_cast<T*>(this)->HandleServer(server, parameters);
+       }
 };
 
 class ServerCommandManager