2011-05-29 20:11:16 +02:00
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/*
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Minetest-c55
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Copyright (C) 2011 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "auth.h"
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#include <fstream>
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#include <jmutexautolock.h>
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//#include "main.h" // for g_settings
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#include <sstream>
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#include "strfnd.h"
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#include "debug.h"
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// Convert a privileges value into a human-readable string,
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// with each component separated by a comma.
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std::string privsToString(u64 privs)
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{
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std::ostringstream os(std::ios_base::binary);
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if(privs & PRIV_BUILD)
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os<<"build,";
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if(privs & PRIV_TELEPORT)
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os<<"teleport,";
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if(privs & PRIV_SETTIME)
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os<<"settime,";
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if(privs & PRIV_PRIVS)
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os<<"privs,";
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if(privs & PRIV_SHOUT)
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os<<"shout,";
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if(os.tellp())
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{
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// Drop the trailing comma. (Why on earth can't
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// you truncate a C++ stream anyway???)
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std::string tmp = os.str();
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return tmp.substr(0, tmp.length() -1);
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}
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return os.str();
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}
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// Converts a comma-seperated list of privilege values into a
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// privileges value. The reverse of privsToString(). Returns
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// PRIV_INVALID if there is anything wrong with the input.
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u64 stringToPrivs(std::string str)
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{
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u64 privs=0;
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Strfnd f(str);
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while(f.atend() == false)
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{
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std::string s = trim(f.next(","));
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if(s == "build")
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privs |= PRIV_BUILD;
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else if(s == "teleport")
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privs |= PRIV_TELEPORT;
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else if(s == "settime")
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privs |= PRIV_SETTIME;
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else if(s == "privs")
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privs |= PRIV_PRIVS;
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else if(s == "shout")
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privs |= PRIV_SHOUT;
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else
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return PRIV_INVALID;
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}
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return privs;
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}
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AuthManager::AuthManager(const std::string &authfilepath):
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2011-05-30 23:23:39 +02:00
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m_authfilepath(authfilepath),
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m_modified(false)
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2011-05-29 20:11:16 +02:00
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{
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m_mutex.Init();
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try{
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load();
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}
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catch(SerializationError &e)
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{
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dstream<<"WARNING: AuthManager: creating "
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<<m_authfilepath<<std::endl;
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}
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}
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AuthManager::~AuthManager()
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{
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save();
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}
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void AuthManager::load()
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{
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JMutexAutoLock lock(m_mutex);
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dstream<<"AuthManager: loading from "<<m_authfilepath<<std::endl;
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std::ifstream is(m_authfilepath.c_str(), std::ios::binary);
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if(is.good() == false)
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{
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dstream<<"AuthManager: failed loading from "<<m_authfilepath<<std::endl;
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throw SerializationError("AuthManager::load(): Couldn't open file");
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}
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for(;;)
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{
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if(is.eof() || is.good() == false)
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break;
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// Read a line
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std::string line;
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std::getline(is, line, '\n');
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std::istringstream iss(line);
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// Read name
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std::string name;
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std::getline(iss, name, ':');
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// Read password
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std::string pwd;
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std::getline(iss, pwd, ':');
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// Read privileges
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std::string stringprivs;
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std::getline(iss, stringprivs, ':');
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u64 privs = stringToPrivs(stringprivs);
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// Store it
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AuthData ad;
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ad.pwd = pwd;
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ad.privs = privs;
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m_authdata[name] = ad;
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}
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2011-05-30 23:23:39 +02:00
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m_modified = false;
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2011-05-29 20:11:16 +02:00
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}
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void AuthManager::save()
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{
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JMutexAutoLock lock(m_mutex);
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dstream<<"AuthManager: saving to "<<m_authfilepath<<std::endl;
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std::ofstream os(m_authfilepath.c_str(), std::ios::binary);
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if(os.good() == false)
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{
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dstream<<"AuthManager: failed saving to "<<m_authfilepath<<std::endl;
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throw SerializationError("AuthManager::save(): Couldn't open file");
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}
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for(core::map<std::string, AuthData>::Iterator
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i = m_authdata.getIterator();
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i.atEnd()==false; i++)
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{
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std::string name = i.getNode()->getKey();
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if(name == "")
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continue;
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AuthData ad = i.getNode()->getValue();
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os<<name<<":"<<ad.pwd<<":"<<privsToString(ad.privs)<<"\n";
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}
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2011-05-30 23:23:39 +02:00
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m_modified = false;
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2011-05-29 20:11:16 +02:00
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}
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bool AuthManager::exists(const std::string &username)
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{
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JMutexAutoLock lock(m_mutex);
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core::map<std::string, AuthData>::Node *n;
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n = m_authdata.find(username);
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if(n == NULL)
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return false;
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return true;
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}
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void AuthManager::set(const std::string &username, AuthData ad)
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{
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JMutexAutoLock lock(m_mutex);
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m_authdata[username] = ad;
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2011-05-30 23:23:39 +02:00
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m_modified = true;
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2011-05-29 20:11:16 +02:00
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}
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void AuthManager::add(const std::string &username)
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{
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JMutexAutoLock lock(m_mutex);
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m_authdata[username] = AuthData();
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2011-05-30 23:23:39 +02:00
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m_modified = true;
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2011-05-29 20:11:16 +02:00
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}
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std::string AuthManager::getPassword(const std::string &username)
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{
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JMutexAutoLock lock(m_mutex);
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core::map<std::string, AuthData>::Node *n;
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n = m_authdata.find(username);
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if(n == NULL)
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throw AuthNotFoundException("");
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return n->getValue().pwd;
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}
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void AuthManager::setPassword(const std::string &username,
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const std::string &password)
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{
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JMutexAutoLock lock(m_mutex);
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core::map<std::string, AuthData>::Node *n;
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n = m_authdata.find(username);
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if(n == NULL)
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throw AuthNotFoundException("");
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AuthData ad = n->getValue();
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ad.pwd = password;
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n->setValue(ad);
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2011-05-30 23:23:39 +02:00
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m_modified = true;
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2011-05-29 20:11:16 +02:00
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}
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u64 AuthManager::getPrivs(const std::string &username)
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{
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JMutexAutoLock lock(m_mutex);
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core::map<std::string, AuthData>::Node *n;
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n = m_authdata.find(username);
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if(n == NULL)
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throw AuthNotFoundException("");
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return n->getValue().privs;
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}
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void AuthManager::setPrivs(const std::string &username, u64 privs)
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{
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JMutexAutoLock lock(m_mutex);
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core::map<std::string, AuthData>::Node *n;
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n = m_authdata.find(username);
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if(n == NULL)
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throw AuthNotFoundException("");
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AuthData ad = n->getValue();
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ad.privs = privs;
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n->setValue(ad);
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2011-05-30 23:23:39 +02:00
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m_modified = true;
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2011-05-29 20:11:16 +02:00
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}
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2011-05-30 23:23:39 +02:00
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bool AuthManager::isModified()
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{
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JMutexAutoLock lock(m_mutex);
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return m_modified;
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}
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