git.sur5r.net Git - openldap/blob - servers/slapd/repl.c

   1 /* repl.c - log modifications for replication purposes */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11
  12 #include <ac/string.h>
  13 #include <ac/ctype.h>
  14 #include <ac/socket.h>
  15
  16 #ifdef HAVE_SYS_FILE_H
  17 #include <sys/file.h>
  18 #endif
  19
  20 #include "slap.h"
  21
  22 int
  23 add_replica_info(
  24     Backend     *be,
  25     const char  *host
  26 )
  27 {
  28         int i = 0;
  29
  30         assert( be );
  31         assert( host );
  32
  33         if ( be->be_replica != NULL ) {
  34                 for ( ; be->be_replica[ i ] != NULL; i++ );
  35         }
  36
  37         be->be_replica = ch_realloc( be->be_replica,
  38                 sizeof( struct slap_replica_info * )*( i + 2 ) );
  39
  40         be->be_replica[ i ]
  41                 = ch_calloc( sizeof( struct slap_replica_info ), 1 );
  42         be->be_replica[ i ]->ri_host = ch_strdup( host );
  43         be->be_replica[ i + 1 ] = NULL;
  44
  45         return( i );
  46 }
  47
  48 void
  49 replog(
  50     Backend     *be,
  51     Operation *op,
  52     char        *dn,
  53     void        *change
  54 )
  55 {
  56         Modifications   *ml;
  57         Entry   *e;
  58         struct replog_moddn *moddn;
  59         char *tmp;
  60         FILE    *fp, *lfp;
  61         int     len, i, count = 0;
  62
  63         if ( be->be_replogfile == NULL && replogfile == NULL ) {
  64                 return;
  65         }
  66
  67         ldap_pvt_thread_mutex_lock( &replog_mutex );
  68         if ( (fp = lock_fopen( be->be_replogfile ? be->be_replogfile :
  69             replogfile, "a", &lfp )) == NULL ) {
  70                 ldap_pvt_thread_mutex_unlock( &replog_mutex );
  71                 return;
  72         }
  73
  74         tmp = ch_strdup( dn );
  75         if ( dn_normalize( tmp ) == NULL ) {
  76                 /* something has gone really bad */
  77                 ch_free( tmp );
  78
  79                 lock_fclose( fp, lfp );
  80                 ldap_pvt_thread_mutex_unlock( &replog_mutex );
  81                 return;
  82         }
  83
  84         for ( i = 0; be->be_replica != NULL && be->be_replica[i] != NULL;
  85             i++ ) {
  86                 /* check if dn's suffix matches legal suffixes, if any */
  87                 if ( be->be_replica[i]->ri_nsuffix != NULL ) {
  88                         int j;
  89
  90                         for ( j = 0; be->be_replica[i]->ri_nsuffix[j]; j++ ) {
  91                                 if ( dn_issuffix( tmp, be->be_replica[i]->ri_nsuffix[j] ) ) {
  92                                         break;
  93                                 }
  94                         }
  95
  96                         if ( !be->be_replica[i]->ri_nsuffix[j] ) {
  97                                 /* do not add "replica:" line */
  98                                 continue;
  99                         }
 100                 }
 101
 102                 fprintf( fp, "replica: %s\n", be->be_replica[i]->ri_host );
 103                 ++count;
 104         }
 105
 106         ch_free( tmp );
 107         if ( count == 0 ) {
 108                 /* if no replicas matched, drop the log
 109                  * (should we log it anyway?) */
 110                 lock_fclose( fp, lfp );
 111                 ldap_pvt_thread_mutex_unlock( &replog_mutex );
 112
 113                 return;
 114         }
 115
 116         fprintf( fp, "time: %ld\n", (long) slap_get_time() );
 117         fprintf( fp, "dn: %s\n", dn );
 118
 119         switch ( op->o_tag ) {
 120         case LDAP_REQ_EXTENDED:
 121                 /* quick hack for extended operations */
 122                 /* assume change parameter is a Modfications* */
 123                 /* fall thru */
 124
 125         case LDAP_REQ_MODIFY:
 126                 fprintf( fp, "changetype: modify\n" );
 127                 ml = change;
 128                 for ( ; ml != NULL; ml = ml->sml_next ) {
 129                         char *type;
 130                         type = ml->sml_desc->ad_cname->bv_val;
 131                         switch ( ml->sml_op ) {
 132                         case LDAP_MOD_ADD:
 133                                 fprintf( fp, "add: %s\n", type );
 134                                 break;
 135
 136                         case LDAP_MOD_DELETE:
 137                                 fprintf( fp, "delete: %s\n", type );
 138                                 break;
 139
 140                         case LDAP_MOD_REPLACE:
 141                                 fprintf( fp, "replace: %s\n", type );
 142                                 break;
 143                         }
 144
 145                         for ( i = 0; ml->sml_bvalues != NULL &&
 146                             ml->sml_bvalues[i] != NULL; i++ ) {
 147                                 char    *buf, *bufp;
 148
 149                                 len = strlen( type );
 150                                 len = LDIF_SIZE_NEEDED( len,
 151                                     ml->sml_bvalues[i]->bv_len ) + 1;
 152                                 buf = (char *) ch_malloc( len );
 153
 154                                 bufp = buf;
 155                                 ldif_sput( &bufp, LDIF_PUT_VALUE,
 156                                         type,
 157                                     ml->sml_bvalues[i]->bv_val,
 158                                     ml->sml_bvalues[i]->bv_len );
 159                                 *bufp = '\0';
 160
 161                                 fputs( buf, fp );
 162
 163                                 free( buf );
 164                         }
 165                         fprintf( fp, "-\n" );
 166                 }
 167                 break;
 168
 169         case LDAP_REQ_ADD:
 170                 e = change;
 171                 fprintf( fp, "changetype: add\n" );
 172                 ldap_pvt_thread_mutex_lock( &entry2str_mutex );
 173                 tmp = entry2str( e, &len );
 174                 while ( (tmp = strchr( tmp, '\n' )) != NULL ) {
 175                         tmp++;
 176                         if ( ! isspace( (unsigned char) *tmp ) )
 177                                 break;
 178                 }
 179                 fprintf( fp, "%s", tmp );
 180                 ldap_pvt_thread_mutex_unlock( &entry2str_mutex );
 181                 break;
 182
 183         case LDAP_REQ_DELETE:
 184                 fprintf( fp, "changetype: delete\n" );
 185                 break;
 186
 187         case LDAP_REQ_MODRDN:
 188                 moddn = change;
 189                 fprintf( fp, "changetype: modrdn\n" );
 190                 fprintf( fp, "newrdn: %s\n", moddn->newrdn );
 191                 fprintf( fp, "deleteoldrdn: %d\n", moddn->deloldrdn ? 1 : 0 );
 192                 if( moddn->newsup != NULL ) {
 193                         fprintf( fp, "newsuperior: %s\n", moddn->newsup );
 194                 }
 195         }
 196         fprintf( fp, "\n" );
 197
 198         lock_fclose( fp, lfp );
 199         ldap_pvt_thread_mutex_unlock( &replog_mutex );
 200 }