1 #include "remoteSigner.h"
6 #include <openssl/ssl.h>
7 #include <openssl/bn.h>
9 RemoteSigner::RemoteSigner( std::shared_ptr<BIO> target, std::shared_ptr<SSL_CTX> ctx ) {
10 this->target = target;
14 RemoteSigner::~RemoteSigner() {
17 void RemoteSigner::send( std::shared_ptr<OpensslBIOWrapper> bio, RecordHeader& head, RecordHeader::SignerCommand cmd, std::string data ) {
18 head.command = ( uint16_t ) cmd;
20 head.totalLength = data.size();
21 sendCommand( head, data, bio, log );
25 std::shared_ptr<SignedCertificate> RemoteSigner::sign( std::shared_ptr<TBSCertificate> cert ) {
26 ( void )BIO_reset( target.get() );
28 std::shared_ptr<SSL> ssl( SSL_new( ctx.get() ), SSL_free );
29 std::shared_ptr<BIO> bio( BIO_new( BIO_f_ssl() ), BIO_free );
30 SSL_set_connect_state( ssl.get() );
31 SSL_set_bio( ssl.get(), target.get(), target.get() );
32 BIO_set_ssl( bio.get(), ssl.get(), BIO_NOCLOSE );
33 std::shared_ptr<OpensslBIOWrapper> conn( new OpensslBIOWrapper( bio ) );
38 if( cert->csr_type == "CSR" ) {
39 send( conn, head, RecordHeader::SignerCommand::SET_CSR, cert->csr_content );
40 } else if( cert->csr_type == "SPKAC" ) {
41 send( conn, head, RecordHeader::SignerCommand::SET_SPKAC, cert->csr_content );
43 std::cout << "Unknown csr_type: " << cert->csr_type;
44 return std::shared_ptr<SignedCertificate>();
47 send( conn, head, RecordHeader::SignerCommand::SET_SIGNATURE_TYPE, cert->md );
48 send( conn, head, RecordHeader::SignerCommand::SET_PROFILE, cert->profile );
50 for( auto ava : cert->AVAs ) {
51 if( ava->name.find( "," ) != std::string::npos ) {
53 return std::shared_ptr<SignedCertificate>();
56 send( conn, head, RecordHeader::SignerCommand::ADD_AVA, ava->name + "," + ava->value );
59 for( auto san : cert->SANs ) {
60 if( san->type.find( "," ) != std::string::npos ) {
62 return std::shared_ptr<SignedCertificate>();
65 send( conn, head, RecordHeader::SignerCommand::ADD_SAN, san->type + "," + san->content );
68 send( conn, head, RecordHeader::SignerCommand::SIGN, "" );
69 send( conn, head, RecordHeader::SignerCommand::LOG_SAVED, "" );
70 std::shared_ptr<SignedCertificate> result = std::shared_ptr<SignedCertificate>( new SignedCertificate() );
71 std::vector<char> buffer( 2048 * 4 );
73 for( int i = 0; i < 3; i++ ) {
75 int length = conn->read( buffer.data(), buffer.size() );
78 std::cout << "Error, no response data" << std::endl;
79 result = std::shared_ptr<SignedCertificate>();
84 std::string payload = parseCommand( head, std::string( buffer.data(), length ), log );
86 switch( ( RecordHeader::SignerResult ) head.command ) {
87 case RecordHeader::SignerResult::CERTIFICATE:
88 result->certificate = payload;
91 case RecordHeader::SignerResult::SAVE_LOG:
92 result->log = payload;
95 case RecordHeader::SignerResult::SIGNING_CA:
96 result->ca_name = payload;
100 std::cout << "Invalid Message" << std::endl;
103 } catch( const char* msg ) {
104 std::cout << msg << std::endl;
105 return std::shared_ptr<SignedCertificate>();
110 std::shared_ptr<BIO> bios( BIO_new( BIO_s_mem() ), BIO_free );
111 const char* buf = result->certificate.data();
112 unsigned int len = result->certificate.size();
115 int dlen = BIO_write( bios.get(), buf, len );
118 throw "Memory error.";
125 std::shared_ptr<X509> pem( PEM_read_bio_X509( bios.get(), NULL, 0, NULL ) );
128 throw "Pem was not readable";
131 std::shared_ptr<BIGNUM> ser( ASN1_INTEGER_to_BN( pem->cert_info->serialNumber, NULL ), BN_free );
132 std::shared_ptr<char> serStr(
133 BN_bn2hex( ser.get() ),
136 } ); // OPENSSL_free is a macro...
137 result->serial = std::string( serStr.get() );
140 if( !SSL_shutdown( ssl.get() ) && !SSL_shutdown( ssl.get() ) ) { // need to close the connection twice
141 std::cout << "SSL shutdown failed" << std::endl;
147 std::pair<std::shared_ptr<CRL>, std::string> RemoteSigner::revoke( std::shared_ptr<CAConfig> ca, std::string serial ) {
148 ( void )BIO_reset( target.get() );
150 std::shared_ptr<SSL> ssl( SSL_new( ctx.get() ), SSL_free );
151 std::shared_ptr<BIO> bio( BIO_new( BIO_f_ssl() ), BIO_free );
152 SSL_set_connect_state( ssl.get() );
153 SSL_set_bio( ssl.get(), target.get(), target.get() );
154 BIO_set_ssl( bio.get(), ssl.get(), BIO_NOCLOSE );
155 std::shared_ptr<OpensslBIOWrapper> conn( new OpensslBIOWrapper( bio ) );
161 std::string payload = ca->name + std::string( "\0", 1 ) + serial;
162 send( conn, head, RecordHeader::SignerCommand::REVOKE, payload );
164 std::vector<char> buffer( 2048 * 4 );
165 int length = conn->read( buffer.data(), buffer.size() );
168 std::cout << "Error, no response data" << std::endl;
169 return std::pair<std::shared_ptr<CRL>, std::string>( std::shared_ptr<CRL>(), "" );
172 payload = parseCommand( head, std::string( buffer.data(), length ), log );
174 std::shared_ptr<CRL> crl( new CRL( ca->path + std::string( "/ca.crl" ) ) );
177 switch( ( RecordHeader::SignerResult ) head.command ) {
178 case RecordHeader::SignerResult::REVOKED: {
179 const unsigned char* buffer2 = ( const unsigned char* ) payload.data();
180 const unsigned char* pos = buffer2;
181 ASN1_TIME* time = d2i_ASN1_TIME( NULL, &pos, payload.size() );
182 ASN1_TIME_free( time );
183 date = payload.substr( 0, pos - buffer2 );
184 std::string rest = payload.substr( pos - buffer2 );
185 crl->revoke( serial, date );
186 crl->setSignature( rest );
187 bool ok = crl->verify( ca );
190 ( *log ) << "CRL verificated successfully" << std::endl;
191 writeFile( ca->path + std::string( "/ca.crl" ), crl->toString() );
193 ( *log ) << "CRL is broken" << std::endl;
194 send( conn, head, RecordHeader::SignerCommand::GET_FULL_CRL, ca->name );
195 length = conn->read( buffer.data(), buffer.size() );
198 ( *log ) << "Error, no response data" << std::endl;
199 return std::pair<std::shared_ptr<CRL>, std::string>( std::shared_ptr<CRL>(), "" );
202 payload = parseCommand( head, std::string( buffer.data(), length ), log );
203 writeFile( ca->path + std::string( "/ca.crl.bak" ), payload );
204 crl = std::shared_ptr<CRL>( new CRL( ca->path + std::string( "/ca.crl.bak" ) ) );
206 if( crl->verify( ca ) ) {
207 writeFile( ca->path + std::string( "/ca.crl" ), crl->toString() );
208 ( *log ) << "CRL is now valid" << std::endl;
210 ( *log ) << "CRL is still broken... Please, help me" << std::endl;
215 ( *log ) << "CRL: " << std::endl << crl->toString() << std::endl;
220 throw "Invalid response command.";
224 if( !SSL_shutdown( ssl.get() ) && !SSL_shutdown( ssl.get() ) ) { // need to close the connection twice
225 std::cout << "SSL shutdown failed" << std::endl;
228 return std::pair<std::shared_ptr<CRL>, std::string>( crl, date );
231 void RemoteSigner::setLog( std::shared_ptr<std::ostream> target ) {