fusiondirectory-schema 1.0.8.8-3ubuntu2 / usr / sbin / fusiondirectory-insert-schema

#!/usr/bin/perl

########################################################################
#
# fusiondirectory-insert-schema
#
# Manipulate and insert the needed schema into the ldap server
#
#  This code is part of FusionDirectory (http://www.fusiondirectory.org/)
#  Copyright (C) 2011-2015  FusionDirectory
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
#
########################################################################

use strict;
use warnings;

use 5.008;

my $ldap_host_options = '-Y EXTERNAL -H ldapi:///';
my $path              = "/etc/ldap/schema/fusiondirectory/";
my $full_cmd          = "";
my $schema2ldif       = "schema2ldif";

my $listschemas = 0;
my $modify      = 0;
my $schemalist  = 0;
my $yes_flag    = 0;
my $pathunset   = 1;
my $continue    = 0;
my @schemas     = ();
my @gen_files   = ();
my $delete_ldif = 1;
foreach my $arg ( @ARGV ) {
  if (not defined $ldap_host_options) {
    $ldap_host_options = $arg;
  } elsif ((lc($arg) eq '-i') || (lc($arg) eq '--insert')) {
    if ($schemalist) {
      usage();
    }
    $schemalist = 1;
  } elsif ((lc($arg) eq '-l') || (lc($arg) eq '--list')) {
    $listschemas = 1;
  } elsif ((lc($arg) eq '-c') || (lc($arg) eq '--continue')) {
    $continue = 1;
  } elsif ((lc($arg) eq '-e') || (lc($arg) eq '--empty')) {
    if ($schemalist) {
      usage();
    }
    $modify = 2;
    $schemalist = 1;
  } elsif ((lc($arg) eq '-m') || (lc($arg) eq '--modify')) {
    if ($schemalist) {
      usage();
    }
    $modify = 1;
    $schemalist = 1;
  } elsif ((lc($arg) eq '-o') || (lc($arg) eq '--options')) {
    undef $ldap_host_options;
  } elsif ((lc($arg) eq '-n') || (lc($arg) eq '--nodelete')) {
    $delete_ldif = 0;
  } elsif ((lc($arg) eq '-y') || (lc($arg) eq '--yes')) {
    $yes_flag = 1;
  } elsif ((lc($arg) eq '-h') || (lc($arg) eq '--help')) {
    usage();
  } elsif ($schemalist) {
    if ($arg =~ /(.*).ldif/) { # ignore ".ldif" if it is there
      push @schemas, $1;
    } elsif ($arg =~ /(.*).schema/) {
      if (system("$schema2ldif $arg > $1.ldif") == 0) {
        push @schemas, $1;
        push @gen_files, $1;
      } else {
        die_with_error("Something went wrong while trying to convert $arg to ldif\n");
      }
    } else {
      push @schemas, $arg;
    }
  } elsif ($pathunset) {
    $path = $arg."/";
    $pathunset = 0;
  } else {
    usage();
  }
}

# if --options is used with no value
usage () if (not defined $ldap_host_options);

# die if user is not "root"
die_with_error ("! You have to run this script as root\n") if ($<!=0);

my $add_cmd         = "ldapadd $ldap_host_options -f ";
my $mod_cmd         = "ldapmodify $ldap_host_options -f ";
my $ldapsearch      = "ldapsearch $ldap_host_options ";
my $search_cmd      = $ldapsearch." -b \"cn=schema,cn=config\" cn={*}";
my $list_cmd        = $search_cmd."* cn 2>/dev/null";
my $cnconfig_cmd    = $ldapsearch." -b \"cn=config\" cn=config dn 2>/dev/null | grep dn:";

if ($listschemas) {
  list_schemas();
  exit 0;
}

# die if the path doesn't exists
die_with_error ("! $path doesn't seems to exists\n") if (!-e $path);

#die if we are not in cn=config
my $cnconfig = `$cnconfig_cmd`;
if (!($cnconfig =~ m/^dn:\s*cn=config$/)) {
  die_with_error ("! This tool is only intended to be with with a cn=config backend, cn=config could not be found in the LDAP");
}

if (scalar(@schemas) == 0) {
  if ($modify == 2) {
    usage("Missing schema list for -e option\n");
  }
  # insert the default schemas
  @schemas = ("samba","core-fd","core-fd-conf","ldapns","recovery-fd");
  foreach my $schema (@schemas) {
    if (system("$schema2ldif $path$schema.schema > $path$schema.ldif") == 0) {
      push @gen_files, $path.$schema;
    } else {
      die_with_error ("Something went wrong while trying to convert $path$schema.schema to ldif\n");
    }
  }
} elsif ($pathunset) {
  $path = "";
}

if ($modify == 2) {
  unless (ask_yn_question("Are you sure you want to empty schema(s) ".join(", ",@schemas)."?"))
  {
    die_with_error("Aborting…\n");
  }
}

$continue++; # activating continue feature only for insertions

foreach my $schema (@schemas) {
  my $schema_name = "";

  if ($modify < 2) {
    # Searching schema name in ldif file first line.
    open FILE, '< '.$path.$schema.".ldif" or die "Count not open ldif file : $!\n";
    my $dn = "";
    while ($dn eq "") {
      chomp($dn = <FILE>);
    }
    if ($dn =~ /^dn: cn=([^,]+),/) {
      $schema_name = $1;
    }
    close(FILE);
  }

  # Fallback on file name
  if ($schema_name eq "") {
    $schema_name = $schema;
    $schema_name =~ s|^.*/||;
  }

  insert_schema($schema, $schema_name);
}

remove_ldifs();

sub insert_schema
{
  my($schema, $schema_name) = @_;

  $full_cmd = $search_cmd.$schema_name." cn";
  print ("\n");
  my $search = `$full_cmd`;

  if ($search !~ /# numEntries: 1/m) {
    if ($modify) {
      print "$schema_name does not exists in the LDAP, skipping…\n";
    } else {
      # if the schema doesn't already exists in the LDAP server, adding it
      $full_cmd = $add_cmd.$path.$schema.".ldif";
      print "executing '$full_cmd'\n";
      if (system ($full_cmd) != 0) {
        die_with_error ("Insertion failed!\n");
      }
    }
  } else {
    if ($modify) {
      if ($search !~ m/dn: ([^,]+),cn=schema,cn=config/) {
        print "Could not parse existing dn for $schema_name, skipping…\n";
        return;
      }
      my $dn_part = $1;
      # if the schema already exists in the LDAP server, modify it
      if ($modify == 1) {
        open(SCHEMA, "<".$path.$schema.".ldif") or die_with_error('Could not open '."<".$path.$schema.".ldif: $!");
        open(UPDATE, ">".$path.$schema."_update.ldif") or die_with_error('Could not open '.">".$path.$schema."_update.ldif: $!");
        push @gen_files, $path.$schema."_update";
        my $attrs   = 0;
        my $classes = 0;
        while (<SCHEMA>) {
          next if m/^#/; # remove comments
          chomp;
          next if m/^$/; # remove empty lines
          if (m/^dn: cn=([^,]+),cn=schema,cn=config$/) {
            print UPDATE "dn: $dn_part,cn=schema,cn=config\n";
            print UPDATE "changetype: modify\n";
            next;
          }
          if (!m/^olcAttributeTypes:/ && !m/^olcObjectClasses:/ && !m/^ /) {
            #skip cn, objectClass, …
            next;
          }

          if (!$attrs && $classes) {
            die "Malformed schema\n";
          }

          if (!$attrs && m/^olcAttributeTypes:/) {
            $attrs = 1;
            print UPDATE "replace: olcAttributeTypes\n";
          }
          if (!$classes && m/^olcObjectClasses:/) {
            $classes = 1;
            print UPDATE "-\n";
            print UPDATE "replace: olcObjectClasses\n";
          }

          print UPDATE;
          print UPDATE "\n";
        }
        close SCHEMA;
        close UPDATE;
      } else { # Emptying schema
        open(UPDATE, ">".$path.$schema."_update.ldif") or die_with_error('Could not open '.">".$path.$schema."_update.ldif: $!");
        push @gen_files, $path.$schema."_update";
        print UPDATE "dn: $dn_part,cn=schema,cn=config\n";
        print UPDATE "changetype: modify\n";
        print UPDATE "delete: olcAttributeTypes\n";
        print UPDATE "-\n";
        print UPDATE "delete: olcObjectClasses\n";
        print UPDATE "-\n";
        close UPDATE;
      }
      $full_cmd = $mod_cmd.$path.$schema."_update.ldif";
      print "executing '$full_cmd'\n";
      if (system ($full_cmd) != 0) {
        die_with_error ("Insertion failed!\n");
      }
    } else {
      print "$schema_name already exists in the LDAP, skipping…\n";
    }
  }
}

sub remove_ldifs
{
  if ($delete_ldif) {
    foreach my $file (@gen_files) {
      unlink "$file.ldif" or print "Could not delete $file.ldif\n";
    }
  }
}

sub die_with_error
{
  my ($error) = @_;
  if ($continue == 2) {
    print "Error: $error\nContinuing…\n";
  } else {
    remove_ldifs();
    die $error;
  }
}

sub list_schemas
{
  my @schemas = `$list_cmd`;
  foreach my $schema (@schemas) {
    if ($schema =~ m/cn:\s*{[0-9]+}(.*)$/) {
      print "$1\n";
    }
  }
}

# ask a question send as parameter, and return true if the answer is "yes"
sub ask_yn_question {
  return 1 if ($yes_flag);
  my ($question) = @_;
  print ( "$question [Yes/No]?\n" );

  while ( my $input = <STDIN> ) {
    # remove the \n at the end of $input
    chomp $input;

    # if user's answer is "yes"
    if ( lc($input) eq "yes" || lc($input) eq "y") {
      return 1;
    # else if he answer "no"
    } elsif ( lc($input) eq "no" || lc($input) eq "n") {
      return 0;
    }
  }
}

sub usage
{
  (@_) && print STDERR "\n@_\n\n";

  print STDERR << "EOF";
 usage: $0 [-h] [-y] [-l] [-o options] [path] [-i|-m|-e schema1 schema2 …]

  -h, --help      : this (help) message
  path            : where to find the schemas
  -i, --insert    : specify the schemas to insert
  -l, --list      : list inserted schemas
  -m, --modify    : modify exising inserted schemas
  -e, --empty     : empty exising inserted schemas (do not remove them)
  -n, --nodelete  : do not delete generated ldifs at the end
  -o, --options   : set ldap options used (default is -Y EXTERNAL -H ldapi:///)
  -c, --continue  : continue on error(s)
  -y, --yes       : answer yes to all questions

EOF
  exit -1;
}

exit 0;

=head1 NAME

fusiondirectory-insert-schema - insert schema needed by FusionDirectory into the ldap server

=head1 SYNOPSIS

fusiondirectory-insert-schema [<path of your schema files>] [-l] [-i|-m schema1 schema2]

=head1 DESCRIPTION

This program will insert the schema needed by FusionDirectory into the ldap server


=head2 Options

=over 6

=item -i

This option insert the given list of schemas instead of the default list

=item -m

This option insert the given list of schemas, replacing already inserted versions of those schemas

=item -e

This option empty the given list of schemas, removing attributes and objectClasses from those.
This is useful because you cannot delete a schema without restarting slapd.

=item -l

This option list inserted schemas

=item -n

This option will make generated ldifs file to not be deleted after execution. Might be useful to understand errors.

=item -c

This option make the program continue even if an error occur

=item -y

This option answer yes to all questions. The only question right now is the confirmation one when you ask to empty a schema.

=item -o

This option allow you to specify specifics options to give to ldap commands such as ldapmodify,
but beware that you will not be able to see things like password prompts as the output of these commands is piped.

=back

=head1 EXAMPLES

 fusion@catbert$ fusiondirectory-insert-schema
   Insert the core schemas in your LDAP directory

 fusion@catbert$ fusiondirectory-insert-schema -i /etc/ldap/otherschema/myschema.ldif
   Insert the schema /etc/ldap/otherschema/myschema.ldif

 fusion@catbert$ fusiondirectory-insert-schema -i /etc/ldap/otherschema/myschema.schema
   Convert /etc/ldap/otherschema/myschema.schema to ldif and insert it

 fusion@catbert$ fusiondirectory-insert-schema -i myschema
   Insert the schema myschema.ldif from working directory

 fusion@catbert$ fusiondirectory-insert-schema -m /etc/ldap/otherschema/myschema.schema
   Convert /etc/ldap/otherschema/myschema.schema to ldif and replace the existing schema by this one

 fusion@catbert$ fusiondirectory-insert-schema -e myschema
   Empty the schema myschema

=head1 BUGS

Please report any bugs, or post any suggestions, to the fusiondirectory mailing list fusiondirectory-users or to
<https://forge.fusiondirectory.org/projects/fdirectory/issues/new>

=head1 AUTHOR

Come Bernigaud

=head1 LICENCE AND COPYRIGHT

This code is part of FusionDirectory <http://www.fusiondirectory.org>

=over 1

=item Copyright (C) 2011-2015 FusionDirectory Project

=back

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

=cut