src/apps/client.cpp

   1 #include <sys/stat.h>
   2 #include <unistd.h>
   3
   4 #include <iostream>
   5 #include <fstream>
   6 #include <streambuf>
   7 #include <unordered_map>
   8
   9 #include "db/database.h"
  10 #include "db/psql.h"
  11 #include "crypto/simpleOpensslSigner.h"
  12 #include "crypto/remoteSigner.h"
  13 #include "crypto/sslUtil.h"
  14 #include "log/logger.hpp"
  15 #include "util.h"
  16 #include "io/bios.h"
  17 #include "io/slipBio.h"
  18 #include "config.h"
  19 #include <internal/bio.h>
  20
  21 #ifdef NO_DAEMON
  22 #define DAEMON false
  23 #else
  24 #define DAEMON true
  25 #endif
  26
  27 extern std::string keyDir;
  28 extern std::string sqlHost, sqlUser, sqlPass, sqlDB;
  29 extern std::string serialPath;
  30 extern std::unordered_map<std::string, std::shared_ptr<CAConfig>> CAs;
  31
  32 void checkCRLs( std::shared_ptr<Signer> sign ) {
  33
  34     logger::note( "Signing CRLs" );
  35
  36     for( auto& x : CAs ) {
  37         logger::notef( "Checking: %s ...", x.first );
  38
  39         if( !x.second->crlNeedsResign() ) {
  40             logger::warnf( "Skipping Resigning CRL: %s ...", x.second->name );
  41             continue;
  42         }
  43
  44         logger::notef( "Resigning CRL: %s ...", x.second->name );
  45
  46         try {
  47             std::vector<std::string> serials;
  48             std::pair<std::shared_ptr<CRL>, std::string> rev = sign->revoke( x.second, serials );
  49         } catch( const std::exception &e ) {
  50             logger::error( "Exception: ", e.what() );
  51         }
  52     }
  53 }
  54
  55 int main( int argc, const char* argv[] ) {
  56     bool once = false;
  57     bool resetOnly = false;
  58
  59     if( argc == 2 && std::string( "--once" ) == argv[1] ) {
  60         once = true;
  61     }
  62     if( argc == 2 && std::string( "--reset" ) == argv[1] ) {
  63         resetOnly = true;
  64     }
  65
  66     std::string path;
  67
  68 #ifdef NDEBUG
  69     path = "/etc/cacert/cassiopeia/cassiopeia.conf";
  70 #else
  71     path = "config.txt";
  72 #endif
  73
  74     if( parseConfig( path ) != 0 ) {
  75         logger::fatal( "Error: Could not parse the configuration file." );
  76         return -1;
  77     }
  78
  79     if( serialPath == "" ) {
  80         logger::fatal( "Error: no serial device is given!" );
  81         return -1;
  82     }
  83     std::shared_ptr<JobProvider> jp = std::make_shared<PostgresJobProvider>( sqlHost, sqlUser, sqlPass, sqlDB );
  84     std::shared_ptr<BIO> b = openSerial( serialPath );
  85     std::shared_ptr<BIO_METHOD> m( toBio<SlipBIO>(), BIO_meth_free);
  86     std::shared_ptr<BIO> slip1( BIO_new( m.get() ), BIO_free );
  87     static_cast<SlipBIO*>( slip1->ptr )->setTarget( std::make_shared<OpensslBIOWrapper>( b ), false );
  88     auto sign = std::make_shared<RemoteSigner>( slip1, generateSSLContext( false ) );
  89     // std::shared_ptr<Signer> sign( new SimpleOpensslSigner() );
  90
  91     if( resetOnly ) {
  92         std::cout << "Doing BIO reset" << std::endl;
  93         int result = BIO_reset( slip1.get() );
  94         std::cout << "Did BIO reset, result " << result << ", exiting." << std::endl;
  95         return result;
  96     }
  97
  98     time_t lastCRLCheck = 0;
  99
 100     while( true ) {
 101         try {
 102             time_t current;
 103             time( &current );
 104
 105             if( lastCRLCheck + 30 * 60 < current ) {
 106                 // todo set good log TODO FIXME
 107                 sign->setLog( std::shared_ptr<std::ostream>(
 108                     &std::cout,
 109                     []( std::ostream* o ) {
 110                         ( void ) o;
 111                     } ) );
 112                 checkCRLs( sign );
 113                 lastCRLCheck = current;
 114             }
 115
 116             std::shared_ptr<Job> job;
 117             try {
 118                 job = jp->fetchJob();
 119             } catch ( std::exception &e ){
 120                 logger::errorf ( "Exception while fetchJob: %s", e.what() );
 121             }
 122             if( !job ) {
 123                 sleep( 5 );
 124                 continue;
 125             }
 126
 127             std::shared_ptr<std::ofstream> logPtr = openLogfile( std::string( "logs/" ) + job->id + std::string( "_" ) + job->warning + std::string( ".log" ) );
 128
 129             logger::logger_set log_set({logger::log_target(*logPtr, logger::level::debug)}, logger::auto_register::on);
 130
 131             logger::note( "TASK ID: ", job->id );
 132             logger::note( "TRY:     ", job->warning );
 133             logger::note( "TARGET:  ", job->target );
 134             logger::note( "TASK:    ", job->task );
 135
 136             if( job->task == "sign" ) {
 137                 try {
 138                     std::shared_ptr<TBSCertificate> cert = jp->fetchTBSCert( job );
 139                     cert->wishFrom = job->from;
 140                     cert->wishTo = job->to;
 141                     logger::note( "INFO: Message Digest: ", cert->md );
 142                     logger::note( "INFO: Profile ID: ", cert->profile );
 143
 144                     for( auto& SAN : cert->SANs ) {
 145                         logger::notef( "INFO: SAN %s: %s", SAN->type, SAN->content );
 146                     }
 147
 148                     for( auto& AVA : cert->AVAs ) {
 149                         logger::notef( "INFO: AVA %s: %s", AVA->name, AVA->value );
 150                     }
 151
 152                     if( !cert ) {
 153                         logger::error( "Unable to load CSR" );
 154                         jp->failJob( job );
 155                         continue;
 156                     }
 157
 158                     logger::notef( "FINE: Found the CSR at '%s'", cert->csr );
 159                     cert->csr_content = readFile( keyDir + "/../" + cert->csr );
 160                     logger::note( "FINE: CSR content:\n", cert->csr_content );
 161
 162                     std::shared_ptr<SignedCertificate> res = sign->sign( cert );
 163
 164                     if( !res ) {
 165                         logger::error( "ERROR: The signer failed. No certificate was returned." );
 166                         jp->failJob( job );
 167                         continue;
 168                     }
 169
 170                     logger::note( "FINE: CERTIFICATE LOG:\n", res->log,
 171                                   "FINE: CERTIFICATE:\n", res->certificate );
 172
 173                     std::string fn = writeBackFile( job->target.c_str(), res->certificate, keyDir );
 174
 175                     if( fn.empty() ) {
 176                         logger::error( "ERROR: Writeback of the certificate failed." );
 177                         jp->failJob( job );
 178                         continue;
 179                     }
 180
 181                     res->crt_name = fn;
 182                     jp->writeBack( job, res ); //! \FIXME: Check return value
 183                     logger::note( "FINE: signing done." );
 184
 185                     if( DAEMON ) {
 186                         jp->finishJob( job );
 187                     }
 188
 189                     continue;
 190                 } catch( std::exception& c ) {
 191                     logger::error( "ERROR: ", c.what() );
 192                 }
 193
 194                 try {
 195                     jp->failJob( job );
 196                 } catch( std::exception& c ) {
 197                     logger::error( "ERROR: ", c.what() );
 198                 }
 199             } else if( job->task == "revoke" ) {
 200                 try {
 201                     logger::note( "revoking" );
 202                     auto data = jp->getRevocationInfo( job );
 203                     std::vector<std::string> serials;
 204                     serials.push_back( data.first );
 205                     logger::note( "revoking" );
 206                     std::pair<std::shared_ptr<CRL>, std::string> rev = sign->revoke( CAs.at( data.second ), serials );
 207                     std::string date = rev.second;
 208                     const unsigned char* pos = ( const unsigned char* ) date.data();
 209                     std::shared_ptr<ASN1_TIME> time( d2i_ASN1_TIME( NULL, &pos, date.size() ), ASN1_TIME_free );
 210
 211                     jp->writeBackRevocation( job, timeToString( time ) );
 212                     jp->finishJob( job );
 213                 } catch( const std::exception& c ) {
 214                     logger::error( "Exception: ", c.what() );
 215                 }
 216             } else {
 217                 logger::errorf( "Unknown job type (\"%s\")", job->task );
 218                 jp->failJob( job );
 219             }
 220
 221             if( !DAEMON || once ) {
 222                 return 0;
 223             }
 224         } catch ( std::exception &e ){
 225             logger::errorf ( "std::exception in mainloop: %s", e.what() );
 226         }
 227
 228     }
 229 }