make /ban work on players that are not connected

src/content_craft.cpp

@@ -2200,7 +2200,7 @@ void craft_set_creative_inventory(Player *player)
 		CONTENT_COTTON,
 		CONTENT_CHEST,
 		CONTENT_FURNACE,
-		CONTENT_SIGN_WALL,
+		CONTENT_SIGN,
 		CONTENT_LAVASOURCE,
 		CONTENT_WOOD,
 		CONTENT_LADDER,

src/player.h

@@ -184,7 +184,8 @@ public:
 class ServerRemotePlayer : public Player
 {
 public:
-	ServerRemotePlayer()
+	ServerRemotePlayer():
+		m_addr("")
 	{
 	}
 	virtual ~ServerRemotePlayer()
@@ -200,7 +201,11 @@ public:
 	{
 	}
 
+	void setAddress(std::string addr) {m_addr = addr;}
+	std::string getAddress() {return m_addr;}
+
 private:
+	std::string m_addr;
 };
 
 #ifndef SERVER

src/server.cpp

@@ -2024,6 +2024,11 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 					<<": failed to emerge player"<<std::endl;
 			return;
 		}
+		{
+			Address address = getPeerAddress(peer_id);
+			std::string ip_string = address.serializeString();
+			((ServerRemotePlayer*)player)->setAddress(ip_string);
+		}
 
 		/*
 			Answer with a TOCLIENT_INIT

src/servercommand.cpp

@@ -261,7 +261,17 @@ void cmd_banunban(std::wostringstream &os, ServerCommandContext *ctx)
 			actionstream<<ctx->player->getName()<<" bans "
 					<<player->getName()<<" / "<<ip_string<<std::endl;
 		} catch(con::PeerNotFoundException){
-			dstream<<__FUNCTION_NAME<<": peer was not found"<<std::endl;
+			std::string ip_string = ((ServerRemotePlayer*)player)->getAddress();
+			if (ip_string != "") {
+				ctx->server->setIpBanned(ip_string, player->getName());
+				os<<L"-!- Banned "<<narrow_to_wide(ip_string)<<L"|"
+						<<narrow_to_wide(player->getName());
+
+				actionstream<<ctx->player->getName()<<" bans "
+						<<player->getName()<<" / "<<ip_string<<std::endl;
+			}else{
+				dstream<<__FUNCTION_NAME<<": peer was not found"<<std::endl;
+			}
 		}
 	}
 	else