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Rewritten cAuthenticator to use the new PolarSSL++ wrapper classes.

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This commit is contained in:
madmaxoft 2014-04-27 22:28:14 +02:00
parent 0bdc49221b
commit dd52719c2d
1 changed files with 45 additions and 91 deletions
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136
src/Protocol/Authenticator.cpp
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@ -16,9 +16,7 @@
#include "polarssl/ctr_drbg.h"
#include "polarssl/error.h"
#include "PolarSSL++/EntropyContext.h"
#include "PolarSSL++/CtrDrbgContext.h"
#include "PolarSSL++/X509Cert.h"
#include "PolarSSL++/BlockingSslClientSocket.h"
#include <sstream>
#include <iomanip>
@ -150,87 +148,47 @@ bool cAuthenticator::AuthWithYggdrasil(AString & a_UserName, const AString & a_S
{
LOGD("Trying to auth user %s", a_UserName.c_str());
int ret, server_fd = -1;
int ret;
unsigned char buf[1024];
const char pers[] = "cAuthenticator";
cCtrDrbgContext CtrDrbg;
ssl_context ssl;
cX509Cert CACert;
/* Initialize the RNG and the session data */
memset(&ssl, 0, sizeof(ssl_context));
if ((ret = CtrDrbg.Initialize(pers, sizeof(pers))) != 0)
{
LOGWARNING("cAuthenticator: CtrDrbg.Initialize() returned %d", ret);
return false;
}
/* Initialize certificates */
// This is the root cert for Starfield Technologies, the CA that signed sessionserver.mojang.com's cert:
static const char StarfieldCACert[] =
"-----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-----";
// Parse the Starfield CA and add it to "trusted root certs"
ret = CACert.Parse(StarfieldCACert, sizeof(StarfieldCACert) - 1);
if (ret < 0)
static const AString StarfieldCACert(
"-----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-----"
);
// Connect the socket:
cBlockingSslClientSocket Socket;
Socket.SetTrustedRootCertsFromString(StarfieldCACert, m_Server);
if (!Socket.Connect(m_Server, 443))
{
LOGWARNING("cAuthenticator: CACert.Parse returned -0x%x", -ret);
LOGWARNING("cAuthenticator: Can't connect to %s: %s", m_Server.c_str(), Socket.GetLastErrorText().c_str());
return false;
}
/* Connect */
if ((ret = net_connect(&server_fd, m_Server.c_str(), 443)) != 0)
{
LOGWARNING("cAuthenticator: Can't connect to %s: %d", m_Server.c_str(), ret);
return false;
}
/* Setup */
if ((ret = ssl_init(&ssl)) != 0)
{
LOGWARNING("cAuthenticator: ssl_init returned %d", ret);
return false;
}
ssl_set_endpoint(&ssl, SSL_IS_CLIENT);
ssl_set_authmode(&ssl, SSL_VERIFY_OPTIONAL);
ssl_set_ca_chain(&ssl, CACert.Get(), NULL, "PolarSSL Server 1");
ssl_set_rng(&ssl, ctr_drbg_random, CtrDrbg.Get());
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);
return false;
}
}
/* Write the GET request */
// Create the GET request:
AString ActualAddress = m_Address;
ReplaceString(ActualAddress, "%USERNAME%", a_UserName);
ReplaceString(ActualAddress, "%SERVERID%", a_ServerId);
@ -242,23 +200,23 @@ bool cAuthenticator::AuthWithYggdrasil(AString & a_UserName, const AString & a_S
Request += "Connection: close\r\n";
Request += "\r\n";
ret = ssl_write(&ssl, (const unsigned char *)Request.c_str(), Request.size());
if (ret <= 0)
if (!Socket.Send(Request.c_str(), Request.size()))
{
LOGWARNING("cAuthenticator: ssl_write returned %d", ret);
LOGWARNING("cAuthenticator: Writing SSL data failed: %s", Socket.GetLastErrorText().c_str());
return false;
}
/* Read the HTTP response */
// 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)
{
@ -266,22 +224,18 @@ 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);
Response.append((const char *)buf, (size_t)ret);
}
ssl_close_notify(&ssl);
net_close(server_fd);
ssl_free(&ssl);
memset(&ssl, 0, sizeof(ssl));
Socket.Disconnect();
// Check the HTTP status line:
AString prefix("HTTP/1.1 200 OK");