/[virtual-ldap]/lib/LDAP/Koha.pm
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Contents of /lib/LDAP/Koha.pm

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Revision 48 - (show annotations)
Fri Apr 17 23:16:00 2009 UTC (14 years, 11 months ago) by dpavlin
File size: 5684 byte(s)
implement multiple values by keeping dn and repeating rows with changed
attributes, implement organizationalunit and group with same attributes
as Active Directory

1 package LDAP::Koha;
2
3 use strict;
4 use warnings;
5
6 use lib '../lib';
7
8 use Net::LDAP::Constant qw(LDAP_SUCCESS);
9 use Net::LDAP::Server;
10 use base 'Net::LDAP::Server';
11 use fields qw();
12
13 use DBI;
14 use File::Slurp;
15
16 use Data::Dump qw/dump/;
17
18 # XXX test with:
19 #
20 # ldapsearch -h localhost -p 2389 -b dc=ffzg,dc=hr -x 'otherPager=200903160021'
21 #
22
23 our $dsn = 'DBI:mysql:dbname=';
24 our $database = 'koha';
25 our $user = 'unconfigured-user';
26 our $passwd = 'unconfigured-password';
27
28 our $max_results = 1500; # 100; # FIXME
29
30 our $objectclass = 'HrEduPerson';
31
32 $SIG{__DIE__} = sub {
33 warn "!!! DIE ", @_;
34 die @_;
35 };
36
37 require 'config.pl' if -e 'config.pl';
38
39 my $dbh = DBI->connect($dsn . $database, $user,$passwd, { RaiseError => 1, AutoCommit => 1 }) || die $DBI::errstr;
40
41 # we need reverse LDAP -> SQL mapping for where clause
42
43 my $ldap_sql_mapping = {
44 'uid' => 'userid',
45 'objectGUID' => 'borrowernumber',
46 'displayName' => 'surname',
47 'sn' => 'surname',
48 'pager' => 'rfid_sid',
49 };
50
51 sub __sql_column {
52 my $name = shift;
53 $ldap_sql_mapping->{$name} || $name;
54 }
55
56 use constant RESULT_OK => {
57 'matchedDN' => '',
58 'errorMessage' => '',
59 'resultCode' => LDAP_SUCCESS
60 };
61
62 # constructor
63 sub new {
64 my ($class, $sock) = @_;
65 my $self = $class->SUPER::new($sock);
66 print "connection from: ", $sock->peerhost(), "\n";
67 return $self;
68 }
69
70 # the bind operation
71 sub bind {
72 my $self = shift;
73 my $reqData = shift;
74 warn "# bind ",dump($reqData);
75 return RESULT_OK;
76 }
77
78 our @values;
79 our @limits;
80
81 sub __ldap_search_to_sql {
82 my ( $how, $what ) = @_;
83 warn "### __ldap_search_to_sql $how ",dump( $what ),"\n";
84 if ( $how eq 'equalityMatch' && defined $what ) {
85 my $name = $what->{attributeDesc} || warn "ERROR: no attributeDesc?";
86 my $value = $what->{assertionValue} || warn "ERROR: no assertionValue?";
87
88 if ( lc $name eq 'objectclass' ) {
89 $objectclass = $value;
90 } else {
91 push @limits, __sql_column($name) . ' = ?';
92 push @values, $value;
93 }
94 } elsif ( $how eq 'substrings' ) {
95 foreach my $substring ( @{ $what->{substrings} } ) {
96 my $name = $what->{type} || warn "ERROR: no type?";
97 while ( my($op,$value) = each %$substring ) {
98 push @limits, __sql_column($name) . ' LIKE ?';
99 if ( $op eq 'any' ) {
100 $value = '%' . $value . '%';
101 } else {
102 warn "UNSUPPORTED: op $op - using plain $value";
103 }
104 push @values, $value;
105 }
106 }
107 } elsif ( $how eq 'present' ) {
108 my $name = __sql_column( $what );
109 push @limits, "$name IS NOT NULL and length($name) > 1";
110 ## XXX length(foo) > 1 to avoid empty " " strings
111 } else {
112 warn "UNSUPPORTED: $how ",dump( $what );
113 }
114 }
115
116
117 # my ( $dn,$attributes ) = _dn_attributes( $row, $base );
118
119 sub _dn_attributes {
120 my ($row,$base) = @_;
121
122 warn "## row = ",dump( $row );
123
124 die "no objectClass column in ",dump( $row ) unless defined $row->{objectClass};
125
126 $row->{objectClass} = [ split(/\s+/, $row->{objectClass}) ] if $row->{objectClass} =~ m{\n};
127
128 warn "## row = ",dump( $row );
129
130 my $dn = delete( $row->{dn} ) || die "no dn in ",dump( $row );
131
132 # this does some sanity cleanup for our data
133 my $base_as_domain = $base;
134 $base_as_domain =~ s{dn=}{.};
135 $base_as_domain =~ s{^\.}{@};
136 $dn =~ s{$base_as_domain$}{};
137
138 $dn .= ',' . $base unless $dn =~ m{,}; # add base if none present
139
140 return ($dn, $row);
141 }
142
143
144 # the search operation
145 sub search {
146 my $self = shift;
147 my $reqData = shift;
148 print "searching...\n";
149
150 warn "# " . localtime() . " request = ", dump($reqData);
151
152 my $base = $reqData->{'baseObject'}; # FIXME use it?
153
154 my @entries;
155 if ( $reqData->{'filter'} ) {
156
157 my $sql_where = '';
158 @values = ();
159
160 foreach my $filter ( keys %{ $reqData->{'filter'} } ) {
161
162 warn "## filter $filter ", dump( $reqData->{'filter'}->{ $filter } ), "\n";
163
164 @limits = ();
165
166 if ( ref $reqData->{'filter'}->{ $filter } eq 'ARRAY' ) {
167
168 foreach my $filter ( @{ $reqData->{'filter'}->{ $filter } } ) {
169 warn "### filter ",dump($filter),$/;
170 foreach my $how ( keys %$filter ) {
171 if ( $how eq 'or' ) {
172 __ldap_search_to_sql( %$_ ) foreach ( @{ $filter->{$how} } );
173 } else {
174 __ldap_search_to_sql( $how, $filter->{$how} );
175 }
176 warn "## limits ",dump(@limits), " values ",dump(@values);
177 }
178 }
179
180 $sql_where .= ' ' . join( " $filter ", @limits );
181
182 } else {
183 __ldap_search_to_sql( $filter, $reqData->{'filter'}->{$filter} );
184 }
185
186 }
187
188 if ( $sql_where ) {
189 $sql_where = " where $sql_where";
190 }
191
192 my $sql_select = read_file( lc "sql/$objectclass.sql" );
193
194 warn "# SQL:\n$sql_select\n", $sql_where ? $sql_where : '-- no where', "\n# DATA: ",dump( @values );
195 my $sth = $dbh->prepare( $sql_select . $sql_where . " LIMIT $max_results" ); # XXX remove limit?
196 $sth->execute( @values );
197
198 warn "# ", $sth->rows, " results for ",dump( $reqData->{'filter'} );
199
200 my $last_dn = '?';
201 my $entry;
202
203 while (my $row = $sth->fetchrow_hashref) {
204
205 my ( $dn, $attributes ) = _dn_attributes( $row, $base );
206
207 warn "# dn $last_dn ... $dn\n";
208
209 if ( $dn ne $last_dn ) {
210
211 if ( $entry ) {
212 #$entry->changetype( 'modify' );
213 warn "### entry ",$entry->dump( \*STDERR );
214 push @entries, $entry;
215 undef $entry;
216 }
217
218 $entry = Net::LDAP::Entry->new;
219 $entry->dn( $dn );
220
221 $entry->add( %$attributes );
222
223 } else {
224 foreach my $n ( keys %$attributes ) {
225 my $v = $attributes->{$n};
226 warn "# attr $n = $v\n";
227 $entry->add( $n, $v ) if $entry->get_value( $n ) ne $v;
228 }
229 }
230
231
232 $last_dn = $dn;
233
234 }
235
236 warn "### last entry ",$entry->dump( \*STDERR );
237 push @entries, $entry;
238
239 } else {
240 warn "UNKNOWN request: ",dump( $reqData );
241 }
242
243 return RESULT_OK, @entries;
244 }
245
246 # the rest of the operations will return an "unwilling to perform"
247
248 1;

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