From 248d7c8469f8cb37406ea0ce56d0945e38334cfb Mon Sep 17 00:00:00 2001
From: Ciaran Gultnieks <ciaran@ciarang.com>
Date: Mon, 16 May 2011 10:41:19 +0100
Subject: Improved server commands and added player permissions.

--HG--
extra : rebase_source : 178fe08f10b7de3ebaba088bd24faad795114216
---
 src/servercommand.cpp | 233 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 233 insertions(+)
 create mode 100644 src/servercommand.cpp

(limited to 'src/servercommand.cpp')

diff --git a/src/servercommand.cpp b/src/servercommand.cpp
new file mode 100644
index 000000000..fa841a1bb
--- /dev/null
+++ b/src/servercommand.cpp
@@ -0,0 +1,233 @@
+/*
+Minetest-c55
+Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2011 Ciaran Gultnieks <ciaran@ciarang.com>
+
+This program 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; either version 2 of the License, or
+(at your option) any later version.
+
+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, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+
+#include "servercommand.h"
+#include "utility.h"
+
+// Process a command sent from a client. The environment and connection
+// should be locked when this is called.
+// Returns a response message, to be dealt with according to the flags set
+// in the context.
+std::wstring ServerCommand::processCommand(ServerCommandContext *ctx)
+{
+
+	std::wostringstream os(std::ios_base::binary);
+	ctx->flags = 1;	// Default, unless we change it.
+
+	u64 privs = ctx->player->privs;
+
+	if(ctx->parms.size() == 0 || ctx->parms[0] == L"help")
+	{
+		os<<L"-!- Available commands: ";
+		os<<L"status privs ";
+		if(privs & PRIV_SERVER)
+			os<<L"shutdown setting ";
+		if(privs & PRIV_SETTIME)
+			os<<L" time";
+		if(privs & PRIV_TELEPORT)
+			os<<L" teleport";
+		if(privs & PRIV_PRIVS)
+			os<<L" grant revoke";
+	}
+	else if(ctx->parms[0] == L"status")
+	{
+		cmd_status(os, ctx);
+	}
+	else if(ctx->parms[0] == L"privs")
+	{
+		cmd_privs(os, ctx);
+	}
+	else if(ctx->parms[0] == L"grant" || ctx->parms[0] == L"revoke")
+	{
+		cmd_grantrevoke(os, ctx);
+	}
+	else if(ctx->parms[0] == L"time")
+	{
+		cmd_time(os, ctx);
+	}
+	else if(ctx->parms[0] == L"shutdown")
+	{
+		cmd_shutdown(os, ctx);
+	}
+	else if(ctx->parms[0] == L"setting")
+	{
+		cmd_setting(os, ctx);
+	}
+	else if(ctx->parms[0] == L"teleport")
+	{
+		cmd_teleport(os, ctx);
+	}
+	else
+	{
+		os<<L"-!- Invalid command: " + ctx->parms[0];
+	}
+	return os.str();
+}
+
+void ServerCommand::cmd_status(std::wostringstream &os,
+	ServerCommandContext *ctx)
+{
+	os<<ctx->server->getStatusString();
+}
+
+void ServerCommand::cmd_privs(std::wostringstream &os,
+	ServerCommandContext *ctx)
+{
+	if(ctx->parms.size() == 1)
+	{
+		os<<L"-!- " + Player::privsToString(ctx->player->privs);
+		return;
+	}
+
+	if((ctx->player->privs & PRIV_PRIVS) == 0)
+	{
+		os<<L"-!- You don't have permission to do that";
+		return;
+	}
+		
+	Player *tp = ctx->env->getPlayer(wide_to_narrow(ctx->parms[1]).c_str());
+	if(tp == NULL)
+	{
+		os<<L"-!- No such player";
+		return;
+	}
+	
+	os<<L"-!- " + Player::privsToString(tp->privs);
+}
+
+void ServerCommand::cmd_grantrevoke(std::wostringstream &os,
+	ServerCommandContext *ctx)
+{
+	if(ctx->parms.size() != 3)
+	{
+		os<<L"-!- Missing parameter";
+		return;
+	}
+
+	if((ctx->player->privs & PRIV_PRIVS) == 0)
+	{
+		os<<L"-!- You don't have permission to do that";
+		return;
+	}
+
+	u64 newprivs = Player::stringToPrivs(ctx->parms[2]);
+	if(newprivs == PRIV_INVALID)
+	{
+		os<<L"-!- Invalid privileges specified";
+		return;
+	}
+
+	Player *tp = ctx->env->getPlayer(wide_to_narrow(ctx->parms[1]).c_str());
+	if(tp == NULL)
+	{
+		os<<L"-!- No such player";
+		return;
+	}
+
+	if(ctx->parms[0] == L"grant")
+		tp->privs |= newprivs;
+	else
+		tp->privs &= ~newprivs;
+	
+	os<<L"-!- Privileges change to ";
+	os<<Player::privsToString(tp->privs);
+}
+
+void ServerCommand::cmd_time(std::wostringstream &os,
+	ServerCommandContext *ctx)
+{
+	if(ctx->parms.size() != 2)
+	{
+		os<<L"-!- Missing parameter";
+		return;
+	}
+
+	if((ctx->player->privs & PRIV_SETTIME) ==0)
+	{
+		os<<L"-!- You don't have permission to do that";
+		return;
+	}
+
+	u32 time = stoi(wide_to_narrow(ctx->parms[1]));
+	ctx->server->setTimeOfDay(time);
+	os<<L"-!- time_of_day changed.";
+}
+
+void ServerCommand::cmd_shutdown(std::wostringstream &os,
+	ServerCommandContext *ctx)
+{
+	if((ctx->player->privs & PRIV_SERVER) ==0)
+	{
+		os<<L"-!- You don't have permission to do that";
+		return;
+	}
+
+	dstream<<DTIME<<" Server: Operator requested shutdown."
+		<<std::endl;
+	ctx->server->requestShutdown();
+					
+	os<<L"*** Server shutting down (operator request)";
+	ctx->flags |= 2;
+}
+
+void ServerCommand::cmd_setting(std::wostringstream &os,
+	ServerCommandContext *ctx)
+{
+	if((ctx->player->privs & PRIV_SERVER) ==0)
+	{
+		os<<L"-!- You don't have permission to do that";
+		return;
+	}
+
+	std::string confline = wide_to_narrow(ctx->parms[1] + L" = " + ctx->parms[2]);
+	g_settings.parseConfigLine(confline);
+	os<< L"-!- Setting changed.";
+}
+
+void ServerCommand::cmd_teleport(std::wostringstream &os,
+	ServerCommandContext *ctx)
+{
+	if((ctx->player->privs & PRIV_TELEPORT) ==0)
+	{
+		os<<L"-!- You don't have permission to do that";
+		return;
+	}
+
+	if(ctx->parms.size() != 2)
+	{
+		os<<L"-!- Missing parameter";
+		return;
+	}
+
+	std::vector<std::wstring> coords = str_split(ctx->parms[1], L',');
+	if(coords.size() != 3)
+	{
+		os<<L"-!- You can only specify coordinates currently";
+		return;
+	}
+
+	v3f dest(stoi(coords[0])*10, stoi(coords[1])*10, stoi(coords[2])*10);
+	ctx->player->setPosition(dest);
+	ctx->server->SendMovePlayer(ctx->player);
+
+	os<< L"-!- Teleported.";
+}
+
-- 
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