1 files changed, 188 insertions, 144 deletions

diff --git a/src/Protocol/Authenticator.cpp b/src/Protocol/Authenticator.cpp
index bbc656eda..2a7cbc7bc 100644
--- a/src/Protocol/Authenticator.cpp
+++ b/src/Protocol/Authenticator.cpp
@@ -2,7 +2,6 @@
 #include "Globals.h"  // NOTE: MSVC stupidness requires this to be the same across all modules
 
 #include "Authenticator.h"
-#include "../OSSupport/BlockingTCPLink.h"
 #include "../Root.h"
 #include "../Server.h"
 #include "../ClientHandle.h"
@@ -10,16 +9,7 @@
 #include "inifile/iniFile.h"
 #include "json/json.h"
 
-#include "polarssl/config.h"
-#include "polarssl/net.h"
-#include "polarssl/ssl.h"
-#include "polarssl/entropy.h"
-#include "polarssl/ctr_drbg.h"
-#include "polarssl/error.h"
-#include "polarssl/certs.h"
-
-#include <sstream>
-#include <iomanip>
+#include "PolarSSL++/BlockingSslClientSocket.h"
 
 
 
@@ -28,6 +18,63 @@
 #define DEFAULT_AUTH_SERVER "sessionserver.mojang.com"
 #define DEFAULT_AUTH_ADDRESS "/session/minecraft/hasJoined?username=%USERNAME%&serverId=%SERVERID%"
 
+/** 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()
+{
+	return AString(
+		// 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"
+	);
+}
+
 
 
 
@@ -68,7 +115,8 @@ void cAuthenticator::Authenticate(int a_ClientID, const AString & a_UserName, co
 {
 	if (!m_ShouldAuthenticate)
 	{
-		cRoot::Get()->AuthenticateUser(a_ClientID, a_UserName, cClientHandle::GenerateOfflineUUID(a_UserName));
+		Json::Value Value;
+		cRoot::Get()->AuthenticateUser(a_ClientID, a_UserName, cClientHandle::GenerateOfflineUUID(a_UserName), Value);
 		return;
 	}
 
@@ -128,10 +176,11 @@ void cAuthenticator::Execute(void)
 
 		AString NewUserName = UserName;
 		AString UUID;
-		if (AuthWithYggdrasil(NewUserName, ServerID, UUID))
+		Json::Value Properties;
+		if (AuthWithYggdrasil(NewUserName, ServerID, UUID, Properties))
 		{
-			LOGINFO("User %s authenticated with UUID '%s'", NewUserName.c_str(), UUID.c_str());
-			cRoot::Get()->AuthenticateUser(ClientID, NewUserName, UUID);
+			LOGINFO("User %s authenticated with UUID %s", NewUserName.c_str(), UUID.c_str());
+			cRoot::Get()->AuthenticateUser(ClientID, NewUserName, UUID, Properties);
 		}
 		else
 		{
@@ -144,131 +193,36 @@ void cAuthenticator::Execute(void)
 
 
 
-bool cAuthenticator::AuthWithYggdrasil(AString & a_UserName, const AString & a_ServerId, AString & a_UUID)
+bool cAuthenticator::SecureGetFromAddress(const AString & a_CACerts, const AString & a_ExpectedPeerName, const AString & a_Data, AString & a_Response)
 {
-	LOGD("Trying to auth user %s", a_UserName.c_str());
-	
-	int ret, server_fd = -1;
-	unsigned char buf[1024];
-	const char *pers = "cAuthenticator";
-
-	entropy_context entropy;
-	ctr_drbg_context ctr_drbg;
-	ssl_context ssl;
-	x509_crt cacert;
-
-	/* Initialize the RNG and the session data */
-	memset(&ssl, 0, sizeof(ssl_context));
-	x509_crt_init(&cacert);
-
-	entropy_init(&entropy);
-	if ((ret = ctr_drbg_init(&ctr_drbg, entropy_func, &entropy, (const unsigned char *)pers, strlen(pers))) != 0)
-	{
-		LOGWARNING("cAuthenticator: ctr_drbg_init returned %d", ret);
-
-		// Free all resources which have been initialized up to this line
-		x509_crt_free(&cacert);
-		entropy_free(&entropy);
-		return false;
-	}
-
-	/* Initialize certificates */
-	// TODO: Grab the sessionserver's root CA and any intermediates and hard-code them here, instead of test_ca_list
-	ret = x509_crt_parse(&cacert, (const unsigned char *)test_ca_list, strlen(test_ca_list));
-
-	if (ret < 0)
+	// Connect the socket:
+	cBlockingSslClientSocket Socket;
+	Socket.SetTrustedRootCertsFromString(a_CACerts, a_ExpectedPeerName);
+	if (!Socket.Connect(a_ExpectedPeerName, 443))
 	{
-		LOGWARNING("cAuthenticator: x509_crt_parse returned -0x%x", -ret);
-
-		// Free all resources which have been initialized up to this line
-		x509_crt_free(&cacert);
-		entropy_free(&entropy);
+		LOGWARNING("cAuthenticator: Can't connect to %s: %s", a_ExpectedPeerName.c_str(), Socket.GetLastErrorText().c_str());
 		return false;
 	}
 
-	/* Connect */
-	if ((ret = net_connect(&server_fd, m_Server.c_str(), 443)) != 0)
+	if (!Socket.Send(a_Data.c_str(), a_Data.size()))
 	{
-		LOGWARNING("cAuthenticator: Can't connect to %s: %d", m_Server.c_str(), ret);
-
-		// Free all resources which have been initialized up to this line
-		x509_crt_free(&cacert);
-		entropy_free(&entropy);
+		LOGWARNING("cAuthenticator: Writing SSL data failed: %s", Socket.GetLastErrorText().c_str());
 		return false;
 	}
 
-	/* Setup */
-	if ((ret = ssl_init(&ssl)) != 0)
-	{
-		LOGWARNING("cAuthenticator: ssl_init returned %d", ret);
-
-		// Free all resources which have been initialized up to this line
-		x509_crt_free(&cacert);
-		net_close(server_fd);
-		ssl_free(&ssl);
-		entropy_free(&entropy);
-		memset(&ssl, 0, sizeof(ssl));
-		return false;
-	}
-	ssl_set_endpoint(&ssl, SSL_IS_CLIENT);
-	ssl_set_authmode(&ssl, SSL_VERIFY_OPTIONAL);
-	ssl_set_ca_chain(&ssl, &cacert, NULL, "PolarSSL Server 1");
-	ssl_set_rng(&ssl, ctr_drbg_random, &ctr_drbg);
-	ssl_set_bio(&ssl, net_recv, &server_fd, net_send, &server_fd);
-
-	/* Handshake */
-	while ((ret = ssl_handshake(&ssl)) != 0)
-	{
-		if ((ret != POLARSSL_ERR_NET_WANT_READ) && (ret != POLARSSL_ERR_NET_WANT_WRITE))
-		{
-			LOGWARNING("cAuthenticator: ssl_handshake returned -0x%x", -ret);
-
-			// Free all resources which have been initialized up to this line
-			x509_crt_free(&cacert);
-			net_close(server_fd);
-			ssl_free(&ssl);
-			entropy_free(&entropy);
-			memset(&ssl, 0, sizeof(ssl));
-			return false;
-		}
-	}
-
-	/* Write the GET request */
-	AString ActualAddress = m_Address;
-	ReplaceString(ActualAddress, "%USERNAME%", a_UserName);
-	ReplaceString(ActualAddress, "%SERVERID%", a_ServerId);
-
-	AString Request;
-	Request += "GET " + ActualAddress + " HTTP/1.1\r\n";
-	Request += "Host: " + m_Server + "\r\n";
-	Request += "User-Agent: MCServer\r\n";
-	Request += "Connection: close\r\n";
-	Request += "\r\n";
-
-	ret = ssl_write(&ssl, (const unsigned char *)Request.c_str(), Request.size());
-	if (ret <= 0)
-	{
-		LOGWARNING("cAuthenticator: ssl_write returned %d", ret);
-		
-		// Free all resources which have been initialized up to this line
-		x509_crt_free(&cacert);
-		net_close(server_fd);
-		ssl_free(&ssl);
-		entropy_free(&entropy);
-		memset(&ssl, 0, sizeof(ssl));
-		return false;
-	}
+	// Read the HTTP response:
+	int ret;
+	unsigned char buf[1024];
 
-	/* Read the HTTP response */
-	std::string Response;
 	for (;;)
 	{
-		memset(buf, 0, sizeof(buf));
-		ret = ssl_read(&ssl, buf, sizeof(buf));
+		ret = Socket.Receive(buf, sizeof(buf));
 
 		if ((ret == POLARSSL_ERR_NET_WANT_READ) || (ret == POLARSSL_ERR_NET_WANT_WRITE))
 		{
-			continue;
+			// 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)
 		{
@@ -276,32 +230,54 @@ bool cAuthenticator::AuthWithYggdrasil(AString & a_UserName, const AString & a_S
 		}
 		if (ret < 0)
 		{
-			LOGWARNING("cAuthenticator: ssl_read returned %d", ret);
-			break;
+			LOGWARNING("cAuthenticator: SSL reading failed: -0x%x", -ret);
+			return false;
 		}
 		if (ret == 0)
 		{
-			LOGWARNING("cAuthenticator: EOF");
 			break;
 		}
 
-		Response.append((const char *)buf, ret);
-	} 
+		a_Response.append((const char *)buf, (size_t)ret);
+	}
+
+	Socket.Disconnect();
+	return true;
+}
+
+
+
+
+
+bool cAuthenticator::AuthWithYggdrasil(AString & a_UserName, const AString & a_ServerId, AString & a_UUID, Json::Value & a_Properties)
+{
+	LOGD("Trying to authenticate user %s", a_UserName.c_str());
+
+	// 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";
 
-	ssl_close_notify(&ssl);
-	x509_crt_free(&cacert);
-	net_close(server_fd);
-	ssl_free(&ssl);
-	entropy_free(&entropy);
-	memset(&ssl, 0, sizeof(ssl));
+	AString Response;
+	if (!SecureGetFromAddress(StarfieldCACert(), m_Server, Request, Response))
+	{
+		return false;
+	}
 
 	// Check the HTTP status line:
-	AString prefix("HTTP/1.1 200 OK");
+	const AString Prefix("HTTP/1.1 200 OK");
 	AString HexDump;
-	if (Response.compare(0, prefix.size(), prefix))
+	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());
+		LOGINFO("User %s failed to auth, bad HTTP status line received", a_UserName.c_str());
+		LOGD("Response: \n%s", CreateHexDump(HexDump, Response.data(), Response.size(), 16).c_str());
 		return false;
 	}
 
@@ -309,8 +285,8 @@ bool cAuthenticator::AuthWithYggdrasil(AString & a_UserName, const AString & a_S
 	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());
+		LOGINFO("User %s failed to authenticate, bad HTTP response header received", a_UserName.c_str());
+		LOGD("Response: \n%s", CreateHexDump(HexDump, Response.data(), Response.size(), 16).c_str());
 		return false;
 	}
 	Response.erase(0, idxHeadersEnd + 4);
@@ -324,12 +300,13 @@ bool cAuthenticator::AuthWithYggdrasil(AString & a_UserName, const AString & a_S
 	Json::Reader reader;
 	if (!reader.parse(Response, root, false))
 	{
-		LOGWARNING("cAuthenticator: Cannot parse Received Data to json!");
+		LOGWARNING("cAuthenticator: Cannot parse received data (authentication) to JSON!");
 		return false;
 	}
 	a_UserName = root.get("name", "Unknown").asString();
 	a_UUID = root.get("id", "").asString();
-	
+	a_Properties = root["properties"];
+
 	// If the UUID doesn't contain the hashes, insert them at the proper places:
 	if (a_UUID.size() == 32)
 	{
@@ -338,6 +315,7 @@ bool cAuthenticator::AuthWithYggdrasil(AString & a_UserName, const AString & a_S
 		a_UUID.insert(18, "-");
 		a_UUID.insert(23, "-");
 	}
+
 	return true;
 }
 
@@ -345,3 +323,69 @@ bool cAuthenticator::AuthWithYggdrasil(AString & a_UserName, const AString & a_S
 
 
 
+/* In case we want to export this function to the plugin API later - don't forget to add the relevant INI configuration lines for DEFAULT_PROPERTIES_ADDRESS
+
+#define DEFAULT_PROPERTIES_ADDRESS "/session/minecraft/profile/%UUID%"
+
+// Gets the properties, such as skin, of a player based on their UUID via Mojang's API
+bool GetPlayerProperties(const AString & a_UUID, Json::Value & a_Properties);
+
+bool cAuthenticator::GetPlayerProperties(const AString & a_UUID, Json::Value & a_Properties)
+{
+	LOGD("Trying to get properties for user %s", a_UUID.c_str());
+
+	// Create the GET request:
+	AString ActualAddress = m_PropertiesAddress;
+	ReplaceString(ActualAddress, "%UUID%", a_UUID);
+
+	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";
+
+	AString Response;
+	if (!ConnectSecurelyToAddress(StarfieldCACert(), m_Server, Request, Response))
+	{
+		return false;
+	}
+
+	// Check the HTTP status line:
+	const AString Prefix("HTTP/1.1 200 OK");
+	AString HexDump;
+	if (Response.compare(0, Prefix.size(), Prefix))
+	{
+		LOGINFO("Failed to get properties for user %s, bad HTTP status line received", a_UUID.c_str());
+		LOGD("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("Failed to get properties for user %s, bad HTTP response header received", a_UUID.c_str());
+		LOGD("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 properties data to JSON!");
+		return false;
+	}
+
+	a_Properties = root["properties"];
+	return true;
+}
+*/