minetest/src/auth.cpp at master · basicinside/minetest · GitHub

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Minetest-c55

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"

std::set<std::string> privsToSet(u64 privs)

{

std::set<std::string> s;

if(privs & PRIV_INTERACT)

s.insert("interact");

if(privs & PRIV_TELEPORT)

s.insert("teleport");

if(privs & PRIV_SETTIME)

s.insert("settime");

if(privs & PRIV_PRIVS)

s.insert("privs");

if(privs & PRIV_SHOUT)

s.insert("shout");

if(privs & PRIV_BAN)

s.insert("ban");

if(privs & PRIV_GIVE)

s.insert("give");

if(privs & PRIV_PASSWORD)

s.insert("password");

return s;

}

// 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_INTERACT)

os<<"interact,";

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(privs & PRIV_BAN)

os<<"ban,";

if(privs & PRIV_GIVE)

os<<"give,";

if(privs & PRIV_PASSWORD)

os<<"password,";

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_INTERACT;

else if(s == "interact")

privs |= PRIV_INTERACT;

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 if(s == "ban")

privs |= PRIV_BAN;

else if(s == "give")

privs |= PRIV_GIVE;

else if(s == "password")

privs |= PRIV_PASSWORD;

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;

}

minetest/src/auth.cpp at master · basicinside/minetest · GitHub

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