#!perl
#
# BEGIN COPYRIGHT BLOCK
# Copyright 2001 Sun Microsystems, Inc.
# Portions copyright 1999, 2001-2003 Netscape Communications Corporation.
# All rights reserved.
# END COPYRIGHT BLOCK
#
#  This script is used to copy over files from 'install' directory
#  to the server instance.

BEGIN {
  $isNT = -d "\\"; 
  $PS = $isNT ? "\\" : "/";
  $SEP = $isNT ? ";" : ":" ;
  $slapdExecName = $isNT ? "slapd.exe" : "ns-slapd";
  # NT needs quotes around some things unix doesn't
  $quote = $isNT ? "\"" : "";
}

$sroot = $ARGV[0];
$prefix = $ARGV[1];
$installDir = sprintf("%s%s%s%s%s%s%s", $sroot, ${PS}, "bin", ${PS}, "slapd", ${PS}, "install");

push @INC, "$sroot/bin/slapd/admin/bin";
require 'uname.lib';

my $os = &uname("-s");
my $shlibsuf;
SWITCH: {
  if ($os eq "AIX") {
  $LIB_PATH = "LIBPATH" ;
  $shlibsuf = ".so";
  last SWITCH ;
  }
  if ($os eq "HP-UX") {
  $LIB_PATH = "SHLIB_PATH" ;
  $shlibsuf = ".sl";
  last SWITCH ;
  }
  if ($isNT) {
  $LIB_PATH = "PATH" ;
  $shlibsuf = ".dll";
  last SWITCH ;
  }
  else {
  $LIB_PATH = "LD_LIBRARY_PATH" ;
  $shlibsuf = ".so";
  last SWITCH ;
  }
}

#  This subroutine takes source directory and destination directory
#  as the arguments.

sub copy_files
{
  my $destDir = pop(@_);
  my $srcDir = pop(@_);
  my $buf = "";
  my $bufsize = 8192;

  opendir(SRCDIR, $srcDir) || die "Can not open source directory $src_dir\n";
  my @srcfiles = readdir(SRCDIR);
  closedir(SRCDIR);

  my $count = 0;
  while ($count <= $#srcfiles) {
    if ($srcfiles[$count] eq "." || $srcfiles[$count] eq ".." 
      || $srcfiles[$count] eq "99user.ldif" ) {
      $count++;
      next;
    }
    my $fullpath_srcfile = sprintf("%s%s%s", $srcDir, ${PS}, $srcfiles[$count]);
    my $fullpath_destfile = sprintf("%s%s%s", $destDir, ${PS}, $srcfiles[$count]);

    open( SRC, $fullpath_srcfile ) || die "Can't open $fullpath_srcfile: $!\n";
    open( DEST, ">$fullpath_destfile" ) || die "Can't create $fullpath_destfile: $!\n";
    while (read(SRC, $buf, $bufsize)) {
      print DEST $buf;
    }
    close( SRC );
    close( DEST );

    $count++;
  }
}

#  Copy schema ldiffiles from <server-root>/bin/slapd/install/schema to
#  <server-root>/<server-instance>/config/schema

sub copy_schema_files
{
  my $schema_bakdir = sprintf("%s%s%s%s%s%s%s", $sroot, ${PS}, ${prefix}, ${PS}, "config", ${PS}, "schema-bak");
  my $schema_srcdir = sprintf("%s%s%s", $installDir, ${PS}, "schema");
  my $schema_destdir = sprintf("%s%s%s%s%s%s%s", $sroot, ${PS}, ${prefix}, ${PS}, "config", ${PS}, "schema");

  # First, back up the original schema ldiffiles under schema-bak directory
  unless (-d $schema_bakdir) {
    mkdir ($schema_bakdir, 0755) ||
    die "Cannot create directory $schema_bakdir: $!\n"; 
  }
  copy_files( $schema_destdir, $schema_bakdir );

  # Now, copy the latest schema ldiffiles
  copy_files( $schema_srcdir, $schema_destdir );
}

sub modify_dse_ldif
{
  my $dse_ldiffile = sprintf("%s%s%s%s%s%s%s", $sroot, ${PS}, ${prefix}, ${PS}, "config", ${PS}, "dse.ldif");
  my $isOID = 0;
  my $isJPEG = 0;
  my $isSpInSt = 0;
    my $reqNameChange = 0;

  open( DSE, "$dse_ldiffile" ) || die "Can't open $dse_ldiffile: $!\n";  
    my $new_filename = "$dse_ldiffile"."_new";
  open( OUTFILE, "> $new_filename" );
  while($line = <DSE>) {
    $isOID = 1 if ( $line =~ /^dn:\s*cn=OID Syntax,\s*cn=plugins,\s*cn=config/i);
    $isJPEG = 1 if ( $line =~ /^dn:\s*cn=JPEG Syntax,\s*cn=plugins,\s*cn=config/i);
    $isSpInSt = 1 if ( $line =~ /^dn:\s*cn=Space Insensitive String Syntax,\s*cn=plugins,\s*cn=config/i);
    if( ($line =~ s/uid uniqueness/attribute uniqueness/) ||
      ($line =~ s/uid-plugin/attr-unique-plugin/) ){
        # the plugin name has changed 
        $reqNameChange = 1;
        print OUTFILE $line;
    } else {
      print OUTFILE $line;
    }

  }
  close( DSE );
  close(OUTFILE);

  if ($isOID && $isJPEG && $isSpInSt && !$reqNameChange) {
    # nothing to be done - just return
    unlink($new_filename);
    return;
  }

  if($reqNameChange){
    # if the name change is required copy the contents of the edited dse.ldif_new to the dse.ldif
    open( DSE, ">$dse_ldiffile" ) || die "Can't open $dse_ldiffile: $!\n";  
    open( OUTFILE, "$new_filename" ) || die "Can't open $new_filename: $!\n";
    while($line = <OUTFILE>) {
      print DSE $line;
    }
    close( DSE );
    close(OUTFILE);
  }
    unlink($new_filename) or die "Cannot unlink $new_filename \n";


  open( DSE, ">>$dse_ldiffile" ) || die "Can't open $dse_ldiffile: $!\n";  

  unless ($isOID) {
  # Add OID Syntax entry
    print DSE "dn: cn=OID Syntax,cn=plugins,cn=config\n";
    print DSE "objectClass: top\n";
    print DSE "objectClass: nsSlapdPlugin\n";
    print DSE "objectClass: extensibleObject\n";
    print DSE "cn: OID Syntax\n";
    print DSE "nsslapd-pluginPath: $sroot/lib/syntax-plugin$shlibsuf\n";
    print DSE "nsslapd-pluginInitfunc: oid_init\n";
    print DSE "nsslapd-pluginType: syntax\n";
    print DSE "nsslapd-pluginEnabled: on\n";
    print DSE "nsslapd-pluginId: oid-syntax\n";
    print DSE "nsslapd-pluginVersion: 6.2.1\n";
    print DSE "nsslapd-pluginVendor: Netscape Communications Corp.\n";
    print DSE "nsslapd-pluginDescription: OID attribute syntax plugin\n";
    print DSE "\n";
  }

  unless ($isJPEG) {
  # Add JPEG Syntax entry
    print DSE "dn: cn=JPEG Syntax,cn=plugins,cn=config\n";
    print DSE "objectClass: top\n";
    print DSE "objectClass: nsSlapdPlugin\n";
    print DSE "objectClass: extensibleObject\n";
    print DSE "cn: JPEG Syntax\n";
    print DSE "nsslapd-pluginPath: $sroot/lib/syntax-plugin$shlibsuf\n";
    print DSE "nsslapd-pluginInitfunc: jpeg_init\n";
    print DSE "nsslapd-pluginType: syntax\n";
    print DSE "nsslapd-pluginEnabled: on\n";
    print DSE "nsslapd-pluginId: jpeg-syntax\n";
    print DSE "nsslapd-pluginVersion: 6.2.1\n";
    print DSE "nsslapd-pluginVendor: Netscape Communications Corp.\n";
    print DSE "nsslapd-pluginDescription: JPEG attribute syntax plugin\n";
    print DSE "\n";
  }

  unless ($isSpInSt) {
    # Add Space Insensitive String Syntax entry
    print DSE "dn: cn=Space Insensitive String Syntax,cn=plugins,cn=config\n";
    print DSE "objectClass: top\n";
    print DSE "objectClass: nsSlapdPlugin\n";
    print DSE "objectClass: extensibleObject\n";
    print DSE "cn: Space Insensitive String Syntax\n";
    print DSE "nsslapd-pluginPath: $sroot/lib/syntax-plugin$shlibsuf\n";
    print DSE "nsslapd-pluginInitfunc: sicis_init\n";
    print DSE "nsslapd-pluginType: syntax\n";
    print DSE "nsslapd-pluginEnabled: on\n";
    print DSE "nsslapd-pluginId: spaceinsensitivestring-syntax\n";
    print DSE "nsslapd-pluginVersion: 6.2.1\n";
    print DSE "nsslapd-pluginVendor: Netscape Communications Corp.\n";
    print DSE "nsslapd-pluginDescription: space insensitive string attribute syntax plugin\n";
    print DSE "\n";
  }

  close( DSE );
}

sub get_changelog_dir {
  my $dse_ldiffile = sprintf("%s%s%s%s%s%s%s", $sroot, ${PS}, ${prefix}, ${PS}, "config", ${PS}, "dse.ldif");
  my $inClEntry = 0;
  my $clDir;

  # first find the changelog dir, if any
  open( DSE, "$dse_ldiffile" ) || die "Can't open $dse_ldiffile: $!\n";  
  while(<DSE>) {
    if (/^dn:\s*cn=changelog5,\s*cn=config/i) {
      $inClEntry = 1;
      next;
    }
    if (/^\s*$/ && $inClEntry) {
      $inClEntry = 0;
      last; # not found, just abort
    }
    if ($inClEntry && /^nsslapd-changelogdir:\s*/i) {
      $clDir = $';
      chomp($clDir);
      last;
    }
  }
  close( DSE );
  return $clDir;
}

sub fix_changelog {
  my $clDir = shift;
  my $newver = shift;

  # look for the region files and remove them - they are the files
  # that start with "__" - like __db.001
  opendir CLDIR, $clDir || die "Error: can't open changelog db dir $clDir: $!";
  while (my $ff = readdir CLDIR) {
    unlink $clDir."/".$ff if ($ff =~ /^__/);
  }
  closedir CLDIR;

  # change the dbversion
  my $dbverfile = $clDir . "/DBVERSION";
  my $tmpverfile = $clDir . "/DBVERSION.tmp";
  open DBVER, $dbverfile or die "Error: could not read file $dbverfile: $!";
  open TMPVER, ">$tmpverfile" or die "Error: could not write file $tmpverfile: $!";
  while (<DBVER>) {
    s/\d+\.\d+$/$newver/;
    print TMPVER;
  }
  close TMPVER;
  close DBVER;
  unlink $dbverfile;
  rename $tmpverfile, $dbverfile;    
}

# get the new (current) version from slapd itself
# not currently used
sub getSlapdVersion {
  my $dir         = shift;
  my $version     = 0; # major version of e.g. 6.1 == 6
  my $minor       = 0; # minor version of e.g. 6.1 == 1
  my $subminor  = 0; # subminor version of e.g. 6.1.2 == 2
  my $buildNumber = 0;
  my $progDir     = "${PS}bin${PS}slapd${PS}server${PS}";

  # find the slapd executable
  $prog = $dir . $progDir . $slapdExecName;
  if (! -f $prog) {
    die "Could not run slapd program $prog: $!";
  }
  else {
      chdir($dir . $progDir);
  }

  open(F, "${quote}${quote}$prog${quote} -v${quote} 2>&1 |") or
    die "Could not run slapd program $prog: $!";
  sleep(1); # allow some data to accumulate in the pipe
#  print "Output from $prog -v:\n";
  while (<F>) {
    if (/^Netscape-Directory\/(\d+)\.(\d+)(?:\.(\d+))?(?:b\d)*\s+(\S+)/) {
      $version     = $1;
      $minor       = $2;
      if ($4) {
        $subminor = $3;
        $buildNumber = $4;
      } else {
        $buildNumber = $3;
      }
      last;
    }
    elsif (/^Netscape-Directory\(restrict?ed-mode\)\/(\d+)\.(\d+)(?:\.(\d+))?\s+(\S+)/) { # we can have restricted-mode or restriced-mode ...
      # version could be X.Y or X.Y.Z
      $version     = $1;
      $minor       = $2;
      if ($4) {
        $subminor = $3;
        $buildNumber = $4;
      } else {
        $buildNumber = $3;
      }
      last;
    }
    elsif (/^iPlanet-Directory\/(\d+)\.(\d+)\s+(\S+)/i) {
      $version     = $1;
      $minor       = $2;
      $buildNumber = $3;
      last;
    }
  }
  my $code = close(F);
  
  if ($version == 0) {
      die "\nCould not determine version of the directory server in $dir: \n";
  }

  # distinguish the 4.1 and the 4.11 thanks to the buildNumber
  if (($version == 4) && ($minor == 1)){
      if (! ($buildNumber =~ /^B99\.16/)) {
    # it's not a 4.1 Netscape Directory Server => it's a 4.11
    $minor = 11 ;
      }
  }
  return ( $version, $minor, $subminor );
}

# get the old version from the $sroot/setup/slapd/slapd.inf file
# not currently used
sub getInfVersion {
  my $inffile = "$sroot/setup/slapd/slapd.inf";
  open INF, $inffile || die "Error: could not read file $inffile: $!";
  my $inslapdsection = 0;
  while (<INF>) {
  if (/^\[slapd\]/) {
    $inslapdsection = 1;
  } elsif ($inslapdsection && /^\[/) {
    $inslapdsection = 0;
    last;
  } elsif ($inslapdsection && /^\s*Version\s*=\s*(\d+)\.(\d+)(?:\.(\d+))?/) {
    close INF;
    return ($1, $2, $3);
  }  
  }
  close INF;
  return ('0', '0');
}

sub getChangelogVersion {
  my $cldir = shift;
  my $versionfile = $cldir . "/DBVERSION";
  my $version = "0.0";
  open DBVER, $versionfile or return '0.0';
  while (<DBVER>) {
  if (/(\d+\.\d+)$/) {
    $version = $1;
  }
  }
  close DBVER;
  return $version;
}

#
# Some scripts generated by create_instance may not
# get generated during in-place upgrade. This function
# is to fix it during postinstall.
# A new template can be directly added to array @newtemplates
# if it follows the naming convertion of "template-<target_name>",
# and its target is $prefix/<target_name>. Otherwise
# modify the script to include any new need.
#
sub instantiate_new_scripts {

  @newtemplates = (
    "$sroot/bin/slapd/admin/scripts/template-ns-newpwpolicy.pl"
  );

  $host = localhost;
  $port = 389;
  $rootdn = "cn=Directory Manager";
  if ( open ( dse, "$sroot/$prefix/config/dse.ldif" )) {
    while ( <dse> ) {
      $host = $1 if /^nsslapd-localhost:\s*(\S+)\s*$/;
      $port = $1 if /^nsslapd-port:\s*(\d+)\D*$/;
      $rootdn = $1 if /^nsslapd-rootdn:\s*(\S.+)\s*$/;
    }
  }

  foreach $src ( @newtemplates ) {
    $dest = "$sroot/$prefix/$1" if $src =~ /.*template-(.*)$/;
    next if -f $dest;
    unless ( open ( template, $src )) {
      print "Can't open $src: $!\n";
      next;
    }
    unless ( open ( target, ">$dest" )) {
      print "Can't open $dest: $!\n";
      next;
    }
    while ( <template> ) {
      s#{{PERL-EXEC}}#!$sroot/bin/slapd/admin/bin/perl#g;
      s#{{DS-ROOT}}#$sroot#g;
      s#{{SEP}}#${PS}#g;
      s#{{ROOT-DN}}#$rootdn#g;
      s#{{SERVER-PORT}}#$port#g;
      s#{{SERVER-NAME}}#$host#g;
      printf target;
    }
    close template;
    close target;
  }
  return 0;
}

# copy schema is safe even if same version
copy_schema_files;

# modify only if necessary
modify_dse_ldif;

# fix changelog is safe even if same version - no op
my $clDir = get_changelog_dir;
if ($clDir && -d $clDir) {
  my $oldclversion = getChangelogVersion($clDir);
  my $clversion = "2.0"; # with DS 6.1

  if ($oldclversion < $clversion) {
  fix_changelog($clDir, $clversion);
  }
}

instantiate_new_scripts ();