1 files changed, 264 insertions, 0 deletions
diff --git a/src/auth.cpp b/src/auth.cpp
new file mode 100644
index 000000000..5d61243c6
--- /dev/null
+++ b/src/auth.cpp
@@ -0,0 +1,264 @@
+/*
+Minetest-c55
+Copyright (C) 2011 celeron55, Perttu Ahola <celeron55@gmail.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 "auth.h"
+#include <fstream>
+#include <jmutexautolock.h>
+//#include "main.h" // for g_settings
+#include <sstream>
+#include "strfnd.h"
+#include "debug.h"
+
+// Convert a privileges value into a human-readable string,
+// with each component separated by a comma.
+std::string privsToString(u64 privs)
+{
+	std::ostringstream os(std::ios_base::binary);
+	if(privs & PRIV_BUILD)
+		os<<"build,";
+	if(privs & PRIV_TELEPORT)
+		os<<"teleport,";
+	if(privs & PRIV_SETTIME)
+		os<<"settime,";
+	if(privs & PRIV_PRIVS)
+		os<<"privs,";
+	if(privs & PRIV_SHOUT)
+		os<<"shout,";
+	if(os.tellp())
+	{
+		// Drop the trailing comma. (Why on earth can't
+		// you truncate a C++ stream anyway???)
+		std::string tmp = os.str();
+		return tmp.substr(0, tmp.length() -1);
+	}
+	return os.str();
+}
+
+// Converts a comma-seperated list of privilege values into a
+// privileges value. The reverse of privsToString(). Returns
+// PRIV_INVALID if there is anything wrong with the input.
+u64 stringToPrivs(std::string str)
+{
+	u64 privs=0;
+	Strfnd f(str);
+	while(f.atend() == false)
+	{
+		std::string s = trim(f.next(","));
+		if(s == "build")
+			privs |= PRIV_BUILD;
+		else if(s == "teleport")
+			privs |= PRIV_TELEPORT;
+		else if(s == "settime")
+			privs |= PRIV_SETTIME;
+		else if(s == "privs")
+			privs |= PRIV_PRIVS;
+		else if(s == "shout")
+			privs |= PRIV_SHOUT;
+		else
+			return PRIV_INVALID;
+	}
+	return privs;
+}
+
+AuthManager::AuthManager(const std::string &authfilepath):
+		m_authfilepath(authfilepath),
+		m_modified(false)
+{
+	m_mutex.Init();
+	
+	try{
+		load();
+	}
+	catch(SerializationError &e)
+	{
+		dstream<<"WARNING: AuthManager: creating "
+				<<m_authfilepath<<std::endl;
+	}
+}
+
+AuthManager::~AuthManager()
+{
+	save();
+}
+
+void AuthManager::load()
+{
+	JMutexAutoLock lock(m_mutex);
+	
+	dstream<<"AuthManager: loading from "<<m_authfilepath<<std::endl;
+	std::ifstream is(m_authfilepath.c_str(), std::ios::binary);
+	if(is.good() == false)
+	{
+		dstream<<"AuthManager: failed loading from "<<m_authfilepath<<std::endl;
+		throw SerializationError("AuthManager::load(): Couldn't open file");
+	}
+
+	for(;;)
+	{
+		if(is.eof() || is.good() == false)
+			break;
+
+		// Read a line
+		std::string line;
+		std::getline(is, line, '\n');
+
+		std::istringstream iss(line);
+		
+		// Read name
+		std::string name;
+		std::getline(iss, name, ':');
+
+		// Read password
+		std::string pwd;
+		std::getline(iss, pwd, ':');
+
+		// Read privileges
+		std::string stringprivs;
+		std::getline(iss, stringprivs, ':');
+		u64 privs = stringToPrivs(stringprivs);
+		
+		// Store it
+		AuthData ad;
+		ad.pwd = pwd;
+		ad.privs = privs;
+		m_authdata[name] = ad;
+	}
+
+	m_modified = false;
+}
+
+void AuthManager::save()
+{
+	JMutexAutoLock lock(m_mutex);
+	
+	dstream<<"AuthManager: saving to "<<m_authfilepath<<std::endl;
+	std::ofstream os(m_authfilepath.c_str(), std::ios::binary);
+	if(os.good() == false)
+	{
+		dstream<<"AuthManager: failed saving to "<<m_authfilepath<<std::endl;
+		throw SerializationError("AuthManager::save(): Couldn't open file");
+	}
+	
+	for(core::map<std::string, AuthData>::Iterator
+			i = m_authdata.getIterator();
+			i.atEnd()==false; i++)
+	{
+		std::string name = i.getNode()->getKey();
+		if(name == "")
+			continue;
+		AuthData ad = i.getNode()->getValue();
+		os<<name<<":"<<ad.pwd<<":"<<privsToString(ad.privs)<<"\n";
+	}
+
+	m_modified = false;
+}
+
+bool AuthManager::exists(const std::string &username)
+{
+	JMutexAutoLock lock(m_mutex);
+	
+	core::map<std::string, AuthData>::Node *n;
+	n = m_authdata.find(username);
+	if(n == NULL)
+		return false;
+	return true;
+}
+
+void AuthManager::set(const std::string &username, AuthData ad)
+{
+	JMutexAutoLock lock(m_mutex);
+	
+	m_authdata[username] = ad;
+
+	m_modified = true;
+}
+
+void AuthManager::add(const std::string &username)
+{
+	JMutexAutoLock lock(m_mutex);
+	
+	m_authdata[username] = AuthData();
+
+	m_modified = true;
+}
+
+std::string AuthManager::getPassword(const std::string &username)
+{
+	JMutexAutoLock lock(m_mutex);
+	
+	core::map<std::string, AuthData>::Node *n;
+	n = m_authdata.find(username);
+	if(n == NULL)
+		throw AuthNotFoundException("");
+	
+	return n->getValue().pwd;
+}
+
+void AuthManager::setPassword(const std::string &username,
+		const std::string &password)
+{
+	JMutexAutoLock lock(m_mutex);
+	
+	core::map<std::string, AuthData>::Node *n;
+	n = m_authdata.find(username);
+	if(n == NULL)
+		throw AuthNotFoundException("");
+	
+	AuthData ad = n->getValue();
+	ad.pwd = password;
+	n->setValue(ad);
+
+	m_modified = true;
+}
+
+u64 AuthManager::getPrivs(const std::string &username)
+{
+	JMutexAutoLock lock(m_mutex);
+	
+	core::map<std::string, AuthData>::Node *n;
+	n = m_authdata.find(username);
+	if(n == NULL)
+		throw AuthNotFoundException("");
+	
+	return n->getValue().privs;
+}
+
+void AuthManager::setPrivs(const std::string &username, u64 privs)
+{
+	JMutexAutoLock lock(m_mutex);
+	
+	core::map<std::string, AuthData>::Node *n;
+	n = m_authdata.find(username);
+	if(n == NULL)
+		throw AuthNotFoundException("");
+	
+	AuthData ad = n->getValue();
+	ad.privs = privs;
+	n->setValue(ad);
+
+	m_modified = true;
+}
+
+bool AuthManager::isModified()
+{
+	JMutexAutoLock lock(m_mutex);
+	return m_modified;
+}
+
+