#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
#include "Authenticator.h"
#include "../Root.h"
#include "../Server.h"
#include "../ClientHandle.h"
#include "inifile/iniFile.h"
#include "json/json.h"
#include "PolarSSL++/BlockingSslClientSocket.h"
#include <sstream>
#include <iomanip>
#define DEFAULT_AUTH_SERVER "sessionserver.mojang.com"
#define DEFAULT_AUTH_ADDRESS "/session/minecraft/hasJoined?username=%USERNAME%&serverId=%SERVERID%"
cAuthenticator::cAuthenticator(void) :
super("cAuthenticator"),
m_Server(DEFAULT_AUTH_SERVER),
m_Address(DEFAULT_AUTH_ADDRESS),
m_ShouldAuthenticate(true)
{
}
cAuthenticator::~cAuthenticator()
{
Stop();
}
void cAuthenticator::ReadINI(cIniFile & IniFile)
{
m_Server = IniFile.GetValueSet("Authentication", "Server", DEFAULT_AUTH_SERVER);
m_Address = IniFile.GetValueSet("Authentication", "Address", DEFAULT_AUTH_ADDRESS);
m_ShouldAuthenticate = IniFile.GetValueSetB("Authentication", "Authenticate", true);
}
void cAuthenticator::Authenticate(int a_ClientID, const AString & a_UserName, const AString & a_ServerHash)
{
if (!m_ShouldAuthenticate)
{
cRoot::Get()->AuthenticateUser(a_ClientID, a_UserName, cClientHandle::GenerateOfflineUUID(a_UserName));
return;
}
cCSLock LOCK(m_CS);
m_Queue.push_back(cUser(a_ClientID, a_UserName, a_ServerHash));
m_QueueNonempty.Set();
}
void cAuthenticator::Start(cIniFile & IniFile)
{
ReadINI(IniFile);
m_ShouldTerminate = false;
super::Start();
}
void cAuthenticator::Stop(void)
{
m_ShouldTerminate = true;
m_QueueNonempty.Set();
Wait();
}
void cAuthenticator::Execute(void)
{
for (;;)
{
cCSLock Lock(m_CS);
while (!m_ShouldTerminate && (m_Queue.size() == 0))
{
cCSUnlock Unlock(Lock);
m_QueueNonempty.Wait();
}
if (m_ShouldTerminate)
{
return;
}
ASSERT(!m_Queue.empty());
cAuthenticator::cUser & User = m_Queue.front();
int ClientID = User.m_ClientID;
AString UserName = User.m_Name;
AString ServerID = User.m_ServerID;
m_Queue.pop_front();
Lock.Unlock();
AString NewUserName = UserName;
AString UUID;
if (AuthWithYggdrasil(NewUserName, ServerID, UUID))
{
LOGINFO("User %s authenticated with UUID '%s'", NewUserName.c_str(), UUID.c_str());
cRoot::Get()->AuthenticateUser(ClientID, NewUserName, UUID);
}
else
{
cRoot::Get()->KickUser(ClientID, "Failed to authenticate account!");
}
} // for (-ever)
}
bool cAuthenticator::AuthWithYggdrasil(AString & a_UserName, const AString & a_ServerId, AString & a_UUID)
{
LOGD("Trying to auth user %s", a_UserName.c_str());
int ret;
unsigned char buf[1024];
/* Initialize certificates */
// This is the data of the root certs for Starfield Technologies, the CA that signed sessionserver.mojang.com's cert:
// Downloaded from http://certs.starfieldtech.com/repository/
static const AString StarfieldCACert(
// G2 cert
"-----BEGIN CERTIFICATE-----\n"
"MIID3TCCAsWgAwIBAgIBADANBgkqhkiG9w0BAQsFADCBjzELMAkGA1UEBhMCVVMx\n"
"EDAOBgNVBAgTB0FyaXpvbmExEzARBgNVBAcTClNjb3R0c2RhbGUxJTAjBgNVBAoT\n"
"HFN0YXJmaWVsZCBUZWNobm9sb2dpZXMsIEluYy4xMjAwBgNVBAMTKVN0YXJmaWVs\n"
"ZCBSb290IENlcnRpZmljYXRlIEF1dGhvcml0eSAtIEcyMB4XDTA5MDkwMTAwMDAw\n"
"MFoXDTM3MTIzMTIzNTk1OVowgY8xCzAJBgNVBAYTAlVTMRAwDgYDVQQIEwdBcml6\n"
"b25hMRMwEQYDVQQHEwpTY290dHNkYWxlMSUwIwYDVQQKExxTdGFyZmllbGQgVGVj\n"
"aG5vbG9naWVzLCBJbmMuMTIwMAYDVQQDEylTdGFyZmllbGQgUm9vdCBDZXJ0aWZp\n"
"Y2F0ZSBBdXRob3JpdHkgLSBHMjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoC\n"
"ggEBAL3twQP89o/8ArFvW59I2Z154qK3A2FWGMNHttfKPTUuiUP3oWmb3ooa/RMg\n"
"nLRJdzIpVv257IzdIvpy3Cdhl+72WoTsbhm5iSzchFvVdPtrX8WJpRBSiUZV9Lh1\n"
"HOZ/5FSuS/hVclcCGfgXcVnrHigHdMWdSL5stPSksPNkN3mSwOxGXn/hbVNMYq/N\n"
"Hwtjuzqd+/x5AJhhdM8mgkBj87JyahkNmcrUDnXMN/uLicFZ8WJ/X7NfZTD4p7dN\n"
"dloedl40wOiWVpmKs/B/pM293DIxfJHP4F8R+GuqSVzRmZTRouNjWwl2tVZi4Ut0\n"
"HZbUJtQIBFnQmA4O5t78w+wfkPECAwEAAaNCMEAwDwYDVR0TAQH/BAUwAwEB/zAO\n"
"BgNVHQ8BAf8EBAMCAQYwHQYDVR0OBBYEFHwMMh+n2TB/xH1oo2Kooc6rB1snMA0G\n"
"CSqGSIb3DQEBCwUAA4IBAQARWfolTwNvlJk7mh+ChTnUdgWUXuEok21iXQnCoKjU\n"
"sHU48TRqneSfioYmUeYs0cYtbpUgSpIB7LiKZ3sx4mcujJUDJi5DnUox9g61DLu3\n"
"4jd/IroAow57UvtruzvE03lRTs2Q9GcHGcg8RnoNAX3FWOdt5oUwF5okxBDgBPfg\n"
"8n/Uqgr/Qh037ZTlZFkSIHc40zI+OIF1lnP6aI+xy84fxez6nH7PfrHxBy22/L/K\n"
"pL/QlwVKvOoYKAKQvVR4CSFx09F9HdkWsKlhPdAKACL8x3vLCWRFCztAgfd9fDL1\n"
"mMpYjn0q7pBZc2T5NnReJaH1ZgUufzkVqSr7UIuOhWn0\n"
"-----END CERTIFICATE-----\n\n"
// Original (G1) cert:
"-----BEGIN CERTIFICATE-----\n"
"MIIEDzCCAvegAwIBAgIBADANBgkqhkiG9w0BAQUFADBoMQswCQYDVQQGEwJVUzEl\n"
"MCMGA1UEChMcU3RhcmZpZWxkIFRlY2hub2xvZ2llcywgSW5jLjEyMDAGA1UECxMp\n"
"U3RhcmZpZWxkIENsYXNzIDIgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwHhcNMDQw\n"
"NjI5MTczOTE2WhcNMzQwNjI5MTczOTE2WjBoMQswCQYDVQQGEwJVUzElMCMGA1UE\n"
"ChMcU3RhcmZpZWxkIFRlY2hub2xvZ2llcywgSW5jLjEyMDAGA1UECxMpU3RhcmZp\n"
"ZWxkIENsYXNzIDIgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwggEgMA0GCSqGSIb3\n"
"DQEBAQUAA4IBDQAwggEIAoIBAQC3Msj+6XGmBIWtDBFk385N78gDGIc/oav7PKaf\n"
"8MOh2tTYbitTkPskpD6E8J7oX+zlJ0T1KKY/e97gKvDIr1MvnsoFAZMej2YcOadN\n"
"+lq2cwQlZut3f+dZxkqZJRRU6ybH838Z1TBwj6+wRir/resp7defqgSHo9T5iaU0\n"
"X9tDkYI22WY8sbi5gv2cOj4QyDvvBmVmepsZGD3/cVE8MC5fvj13c7JdBmzDI1aa\n"
"K4UmkhynArPkPw2vCHmCuDY96pzTNbO8acr1zJ3o/WSNF4Azbl5KXZnJHoe0nRrA\n"
"1W4TNSNe35tfPe/W93bC6j67eA0cQmdrBNj41tpvi/JEoAGrAgEDo4HFMIHCMB0G\n"
"A1UdDgQWBBS/X7fRzt0fhvRbVazc1xDCDqmI5zCBkgYDVR0jBIGKMIGHgBS/X7fR\n"
"zt0fhvRbVazc1xDCDqmI56FspGowaDELMAkGA1UEBhMCVVMxJTAjBgNVBAoTHFN0\n"
"YXJmaWVsZCBUZWNobm9sb2dpZXMsIEluYy4xMjAwBgNVBAsTKVN0YXJmaWVsZCBD\n"
"bGFzcyAyIENlcnRpZmljYXRpb24gQXV0aG9yaXR5ggEAMAwGA1UdEwQFMAMBAf8w\n"
"DQYJKoZIhvcNAQEFBQADggEBAAWdP4id0ckaVaGsafPzWdqbAYcaT1epoXkJKtv3\n"
"L7IezMdeatiDh6GX70k1PncGQVhiv45YuApnP+yz3SFmH8lU+nLMPUxA2IGvd56D\n"
"eruix/U0F47ZEUD0/CwqTRV/p2JdLiXTAAsgGh1o+Re49L2L7ShZ3U0WixeDyLJl\n"
"xy16paq8U4Zt3VekyvggQQto8PT7dL5WXXp59fkdheMtlb71cZBDzI0fmgAKhynp\n"
"VSJYACPq4xJDKVtHCN2MQWplBqjlIapBtJUhlbl90TSrE9atvNziPTnNvT51cKEY\n"
"WQPJIrSPnNVeKtelttQKbfi3QBFGmh95DmK/D5fs4C8fF5Q=\n"
"-----END CERTIFICATE-----\n"
);
// Connect the socket:
cBlockingSslClientSocket Socket;
Socket.SetTrustedRootCertsFromString(StarfieldCACert, m_Server);
if (!Socket.Connect(m_Server, 443))
{
LOGWARNING("cAuthenticator: Can't connect to %s: %s", m_Server.c_str(), Socket.GetLastErrorText().c_str());
return false;
}
// Create the GET request:
AString ActualAddress = m_Address;
ReplaceString(ActualAddress, "%USERNAME%", a_UserName);
ReplaceString(ActualAddress, "%SERVERID%", a_ServerId);
AString Request;
Request += "GET " + ActualAddress + " HTTP/1.0\r\n";
Request += "Host: " + m_Server + "\r\n";
Request += "User-Agent: MCServer\r\n";
Request += "Connection: close\r\n";
Request += "\r\n";
if (!Socket.Send(Request.c_str(), Request.size()))
{
LOGWARNING("cAuthenticator: Writing SSL data failed: %s", Socket.GetLastErrorText().c_str());
return false;
}
// Read the HTTP response:
std::string Response;
for (;;)
{
ret = Socket.Receive(buf, sizeof(buf));
if ((ret == POLARSSL_ERR_NET_WANT_READ) || (ret == POLARSSL_ERR_NET_WANT_WRITE))
{
// This value should never be returned, it is handled internally by cBlockingSslClientSocket
LOGWARNING("cAuthenticator: SSL reading failed internally.");
return false;
}
if (ret == POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY)
{
break;
}
if (ret < 0)
{
LOGWARNING("cAuthenticator: SSL reading failed: -0x%x", -ret);
return false;
}
if (ret == 0)
{
break;
}
Response.append((const char *)buf, (size_t)ret);
}
Socket.Disconnect();
// Check the HTTP status line:
AString prefix("HTTP/1.1 200 OK");
AString HexDump;
if (Response.compare(0, prefix.size(), prefix))
{
LOGINFO("User %s failed to auth, bad http status line received", a_UserName.c_str());
LOG("Response: \n%s", CreateHexDump(HexDump, Response.data(), Response.size(), 16).c_str());
return false;
}
// Erase the HTTP headers from the response:
size_t idxHeadersEnd = Response.find("\r\n\r\n");
if (idxHeadersEnd == AString::npos)
{
LOGINFO("User %s failed to authenticate, bad http response header received", a_UserName.c_str());
LOG("Response: \n%s", CreateHexDump(HexDump, Response.data(), Response.size(), 16).c_str());
return false;
}
Response.erase(0, idxHeadersEnd + 4);
// Parse the Json response:
if (Response.empty())
{
return false;
}
Json::Value root;
Json::Reader reader;
if (!reader.parse(Response, root, false))
{
LOGWARNING("cAuthenticator: Cannot parse Received Data to json!");
return false;
}
a_UserName = root.get("name", "Unknown").asString();
a_UUID = root.get("id", "").asString();
// If the UUID doesn't contain the hashes, insert them at the proper places:
if (a_UUID.size() == 32)
{
a_UUID.insert(8, "-");
a_UUID.insert(13, "-");
a_UUID.insert(18, "-");
a_UUID.insert(23, "-");
}
return true;
}