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
  20 #ifdef NO_DAEMON
  21 #define DAEMON false
  22 #else
  23 #define DAEMON true
  24 #endif
  25
  26 extern std::string keyDir;
  27 extern std::string sqlHost, sqlUser, sqlPass, sqlDB;
  28 extern std::string serialPath;
  29 extern std::unordered_map<std::string, std::shared_ptr<CAConfig>> CAs;
  30
  31 void checkCRLs( std::shared_ptr<Signer> sign ) {
  32
  33     logger::note( "Signing CRLs" );
  34
  35     for( auto& x : CAs ) {
  36         logger::notef( "Checking: %s ...", x.first );
  37
  38         if( !x.second->crlNeedsResign() ) {
  39             logger::warnf( "Skipping Resigning CRL: %s ...", x.second->name );
  40             continue;
  41         }
  42
  43         logger::notef( "Resigning CRL: %s ...", x.second->name );
  44
  45         try {
  46             std::vector<std::string> serials;
  47             std::pair<std::shared_ptr<CRL>, std::string> rev = sign->revoke( x.second, serials );
  48         } catch( const std::exception &e ) {
  49             logger::error( "Exception: ", e.what() );
  50         }
  51     }
  52 }
  53
  54 int main( int argc, const char* argv[] ) {
  55     bool once = false;
  56     bool resetOnly = false;
  57
  58     if( argc == 2 && std::string( "--once" ) == argv[1] ) {
  59         once = true;
  60     }
  61     if( argc == 2 && std::string( "--reset" ) == argv[1] ) {
  62         resetOnly = true;
  63     }
  64
  65     std::string path;
  66
  67 #ifdef NDEBUG
  68     path = "/etc/cacert/cassiopeia/cassiopeia.conf";
  69 #else
  70     path = "config.txt";
  71 #endif
  72
  73     if( parseConfig( path ) != 0 ) {
  74         logger::fatal( "Error: Could not parse the configuration file." );
  75         return -1;
  76     }
  77
  78     if( serialPath == "" ) {
  79         logger::fatal( "Error: no serial device is given!" );
  80         return -1;
  81     }
  82     std::shared_ptr<JobProvider> jp = std::make_shared<PostgresJobProvider>( sqlHost, sqlUser, sqlPass, sqlDB );
  83     std::shared_ptr<BIO> b = openSerial( serialPath );
  84     std::shared_ptr<BIO> slip1( BIO_new( toBio<SlipBIO>() ), BIO_free );
  85     static_cast<SlipBIO*>( slip1->ptr )->setTarget( std::make_shared<OpensslBIOWrapper>( b ), false );
  86     auto sign = std::make_shared<RemoteSigner>( slip1, generateSSLContext( false ) );
  87     // std::shared_ptr<Signer> sign( new SimpleOpensslSigner() );
  88
  89     if( resetOnly ) {
  90         std::cout << "Doing BIO reset" << std::endl;
  91         int result = BIO_reset( slip1.get() );
  92         std::cout << "Did BIO reset, result " << result << ", exiting." << std::endl;
  93         return result;
  94     }
  95
  96     time_t lastCRLCheck = 0;
  97
  98     while( true ) {
  99         try {
 100             time_t current;
 101             time( &current );
 102
 103             if( lastCRLCheck + 30 * 60 < current ) {
 104                 // todo set good log TODO FIXME
 105                 sign->setLog( std::shared_ptr<std::ostream>(
 106                     &std::cout,
 107                     []( std::ostream* o ) {
 108                         ( void ) o;
 109                     } ) );
 110                 checkCRLs( sign );
 111                 lastCRLCheck = current;
 112             }
 113
 114             std::shared_ptr<Job> job;
 115             try {
 116                 job = jp->fetchJob();
 117             } catch ( std::exception &e ){
 118                 logger::errorf ( "Exception while fetchJob: %s", e.what() );
 119             }
 120             if( !job ) {
 121                 logger::note( "Nothing to work on." );
 122                 sleep( 5 );
 123                 continue;
 124             }
 125
 126             std::shared_ptr<std::ofstream> logPtr = openLogfile( std::string( "logs/" ) + job->id + std::string( "_" ) + job->warning + std::string( ".log" ) );
 127
 128             logger::logger_set log_set({logger::log_target(*logPtr, logger::level::debug)}, logger::auto_register::on);
 129
 130             logger::note( "TASK ID: ", job->id );
 131             logger::note( "TRY:     ", job->warning );
 132             logger::note( "TARGET:  ", job->target );
 133             logger::note( "TASK:    ", job->task );
 134
 135             if( job->task == "sign" ) {
 136                 try {
 137                     std::shared_ptr<TBSCertificate> cert = jp->fetchTBSCert( job );
 138                     cert->wishFrom = job->from;
 139                     cert->wishTo = job->to;
 140                     logger::note( "INFO: Message Digest: ", cert->md );
 141                     logger::note( "INFO: Profile ID: ", cert->profile );
 142
 143                     for( auto& SAN : cert->SANs ) {
 144                         logger::notef( "INFO: SAN %s: %s", SAN->type, SAN->content );
 145                     }
 146
 147                     for( auto& AVA : cert->AVAs ) {
 148                         logger::notef( "INFO: AVA %s: %s", AVA->name, AVA->value );
 149                     }
 150
 151                     if( !cert ) {
 152                         logger::error( "Unable to load CSR" );
 153                         jp->failJob( job );
 154                         continue;
 155                     }
 156
 157                     logger::notef( "FINE: Found the CSR at '%s'", cert->csr );
 158                     cert->csr_content = readFile( keyDir + "/../" + cert->csr );
 159                     logger::note( "FINE: CSR content:\n", cert->csr_content );
 160
 161                     std::shared_ptr<SignedCertificate> res = sign->sign( cert );
 162
 163                     if( !res ) {
 164                         logger::error( "ERROR: The signer failed. No certificate was returned." );
 165                         jp->failJob( job );
 166                         continue;
 167                     }
 168
 169                     logger::note( "FINE: CERTIFICATE LOG:\n", res->log,
 170                                   "FINE: CERTIFICATE:\n", res->certificate );
 171
 172                     std::string fn = writeBackFile( job->target.c_str(), res->certificate, keyDir );
 173
 174                     if( fn.empty() ) {
 175                         logger::error( "ERROR: Writeback of the certificate failed." );
 176                         jp->failJob( job );
 177                         continue;
 178                     }
 179
 180                     res->crt_name = fn;
 181                     jp->writeBack( job, res ); //! \FIXME: Check return value
 182                     logger::note( "FINE: signing done." );
 183
 184                     if( DAEMON ) {
 185                         jp->finishJob( job );
 186                     }
 187
 188                     continue;
 189                 } catch( std::exception& c ) {
 190                     logger::error( "ERROR: ", c.what() );
 191                 }
 192
 193                 try {
 194                     jp->failJob( job );
 195                 } catch( std::exception& c ) {
 196                     logger::error( "ERROR: ", c.what() );
 197                 }
 198             } else if( job->task == "revoke" ) {
 199                 try {
 200                     logger::note( "revoking" );
 201                     auto data = jp->getRevocationInfo( job );
 202                     std::vector<std::string> serials;
 203                     serials.push_back( data.first );
 204                     logger::note( "revoking" );
 205                     std::pair<std::shared_ptr<CRL>, std::string> rev = sign->revoke( CAs.at( data.second ), serials );
 206                     std::string date = rev.second;
 207                     const unsigned char* pos = ( const unsigned char* ) date.data();
 208                     std::shared_ptr<ASN1_TIME> time( d2i_ASN1_TIME( NULL, &pos, date.size() ), ASN1_TIME_free );
 209
 210                     jp->writeBackRevocation( job, timeToString( time ) );
 211                     jp->finishJob( job );
 212                 } catch( const std::exception& c ) {
 213                     logger::error( "Exception: ", c.what() );
 214                 }
 215             } else {
 216                 logger::errorf( "Unknown job type (\"%s\")", job->task );
 217                 jp->failJob( job );
 218             }
 219
 220             if( !DAEMON || once ) {
 221                 return 0;
 222             }
 223         } catch ( std::exception &e ){
 224             logger::errorf ( "std::exception in mainloop: %s", e.what() );
 225         }
 226
 227     }
 228 }