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 #include "ldif.h"
  22
  23 int
  24 add_replica_info(
  25     Backend     *be,
  26     const char  *host
  27 )
  28 {
  29         int i = 0;
  30
  31         assert( be );
  32         assert( host );
  33
  34         if ( be->be_replica != NULL ) {
  35                 for ( ; be->be_replica[ i ] != NULL; i++ );
  36         }
  37
  38         be->be_replica = ch_realloc( be->be_replica,
  39                 sizeof( struct slap_replica_info * )*( i + 2 ) );
  40
  41         be->be_replica[ i ]
  42                 = ch_calloc( sizeof( struct slap_replica_info ), 1 );
  43         be->be_replica[ i ]->ri_host = ch_strdup( host );
  44         be->be_replica[ i + 1 ] = NULL;
  45
  46         return( i );
  47 }
  48
  49 void
  50 replog(
  51     Backend     *be,
  52     Operation *op,
  53     char        *dn,
  54     void        *change
  55 )
  56 {
  57         Modifications   *ml;
  58         Entry   *e;
  59         struct replog_moddn *moddn;
  60         char *tmp;
  61         FILE    *fp, *lfp;
  62         int     len, i;
  63 /* undef NO_LOG_WHEN_NO_REPLICAS */
  64 #ifdef NO_LOG_WHEN_NO_REPLICAS
  65         int     count = 0;
  66 #endif
  67
  68         if ( be->be_replogfile == NULL && replogfile == NULL ) {
  69                 return;
  70         }
  71
  72         ldap_pvt_thread_mutex_lock( &replog_mutex );
  73         if ( (fp = lock_fopen( be->be_replogfile ? be->be_replogfile :
  74             replogfile, "a", &lfp )) == NULL ) {
  75                 ldap_pvt_thread_mutex_unlock( &replog_mutex );
  76                 return;
  77         }
  78
  79         tmp = ch_strdup( dn );
  80         if ( dn_normalize( tmp ) == NULL ) {
  81                 /* something has gone really bad */
  82                 ch_free( tmp );
  83
  84                 lock_fclose( fp, lfp );
  85                 ldap_pvt_thread_mutex_unlock( &replog_mutex );
  86                 return;
  87         }
  88
  89         for ( i = 0; be->be_replica != NULL && be->be_replica[i] != NULL;
  90             i++ ) {
  91                 /* check if dn's suffix matches legal suffixes, if any */
  92                 if ( be->be_replica[i]->ri_nsuffix != NULL ) {
  93                         int j;
  94
  95                         for ( j = 0; be->be_replica[i]->ri_nsuffix[j]; j++ ) {
  96                                 if ( dn_issuffix( tmp, be->be_replica[i]->ri_nsuffix[j] ) ) {
  97                                         break;
  98                                 }
  99                         }
 100
 101                         if ( !be->be_replica[i]->ri_nsuffix[j] ) {
 102                                 /* do not add "replica:" line */
 103                                 continue;
 104                         }
 105                 }
 106
 107                 fprintf( fp, "replica: %s\n", be->be_replica[i]->ri_host );
 108 #ifdef NO_LOG_WHEN_NO_REPLICAS
 109                 ++count;
 110 #endif
 111         }
 112
 113         ch_free( tmp );
 114 #ifdef NO_LOG_WHEN_NO_REPLICAS
 115         if ( count == 0 ) {
 116                 /* if no replicas matched, drop the log
 117                  * (should we log it anyway?) */
 118                 lock_fclose( fp, lfp );
 119                 ldap_pvt_thread_mutex_unlock( &replog_mutex );
 120
 121                 return;
 122         }
 123 #endif
 124
 125         fprintf( fp, "time: %ld\n", (long) slap_get_time() );
 126         fprintf( fp, "dn: %s\n", dn );
 127
 128         switch ( op->o_tag ) {
 129         case LDAP_REQ_EXTENDED:
 130                 /* quick hack for extended operations */
 131                 /* assume change parameter is a Modfications* */
 132                 /* fall thru */
 133
 134         case LDAP_REQ_MODIFY:
 135                 fprintf( fp, "changetype: modify\n" );
 136                 ml = change;
 137                 for ( ; ml != NULL; ml = ml->sml_next ) {
 138                         char *type;
 139                         type = ml->sml_desc->ad_cname.bv_val;
 140                         switch ( ml->sml_op ) {
 141                         case LDAP_MOD_ADD:
 142                                 fprintf( fp, "add: %s\n", type );
 143                                 break;
 144
 145                         case LDAP_MOD_DELETE:
 146                                 fprintf( fp, "delete: %s\n", type );
 147                                 break;
 148
 149                         case LDAP_MOD_REPLACE:
 150                                 fprintf( fp, "replace: %s\n", type );
 151                                 break;
 152                         }
 153
 154                         for ( i = 0; ml->sml_bvalues != NULL &&
 155                             ml->sml_bvalues[i] != NULL; i++ ) {
 156                                 char    *buf, *bufp;
 157
 158                                 len = strlen( type );
 159                                 len = LDIF_SIZE_NEEDED( len,
 160                                     ml->sml_bvalues[i]->bv_len ) + 1;
 161                                 buf = (char *) ch_malloc( len );
 162
 163                                 bufp = buf;
 164                                 ldif_sput( &bufp, LDIF_PUT_VALUE,
 165                                         type,
 166                                     ml->sml_bvalues[i]->bv_val,
 167                                     ml->sml_bvalues[i]->bv_len );
 168                                 *bufp = '\0';
 169
 170                                 fputs( buf, fp );
 171
 172                                 free( buf );
 173                         }
 174                         fprintf( fp, "-\n" );
 175                 }
 176                 break;
 177
 178         case LDAP_REQ_ADD:
 179                 e = change;
 180                 fprintf( fp, "changetype: add\n" );
 181                 ldap_pvt_thread_mutex_lock( &entry2str_mutex );
 182                 tmp = entry2str( e, &len );
 183                 while ( (tmp = strchr( tmp, '\n' )) != NULL ) {
 184                         tmp++;
 185                         if ( ! isspace( (unsigned char) *tmp ) )
 186                                 break;
 187                 }
 188                 fprintf( fp, "%s", tmp );
 189                 ldap_pvt_thread_mutex_unlock( &entry2str_mutex );
 190                 break;
 191
 192         case LDAP_REQ_DELETE:
 193                 fprintf( fp, "changetype: delete\n" );
 194                 break;
 195
 196         case LDAP_REQ_MODRDN:
 197                 moddn = change;
 198                 fprintf( fp, "changetype: modrdn\n" );
 199                 fprintf( fp, "newrdn: %s\n", moddn->newrdn );
 200                 fprintf( fp, "deleteoldrdn: %d\n", moddn->deloldrdn ? 1 : 0 );
 201                 if( moddn->newsup != NULL ) {
 202                         fprintf( fp, "newsuperior: %s\n", moddn->newsup );
 203                 }
 204         }
 205         fprintf( fp, "\n" );
 206
 207         lock_fclose( fp, lfp );
 208         ldap_pvt_thread_mutex_unlock( &replog_mutex );
 209 }