/[virtual-ldap]/lib/LDAP/Koha.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Annotation of /lib/LDAP/Koha.pm

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Revision 87 - (hide annotations)
Mon Apr 19 13:48:35 2010 UTC (13 years, 11 months ago) by dpavlin
File size: 6079 byte(s)
use connect_cached so we will reconnect when mysql drops connection

1 dpavlin 32 package LDAP::Koha;
2    
3     use strict;
4     use warnings;
5    
6     use lib '../lib';
7 dpavlin 47
8 dpavlin 32 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 dpavlin 47 use File::Slurp;
15 dpavlin 32
16 dpavlin 47 use Data::Dump qw/dump/;
17    
18 dpavlin 62 my $debug = 0; # XXX very slow
19    
20 dpavlin 32 # XXX test with:
21     #
22     # ldapsearch -h localhost -p 2389 -b dc=ffzg,dc=hr -x 'otherPager=200903160021'
23     #
24    
25     our $dsn = 'DBI:mysql:dbname=';
26     our $database = 'koha';
27     our $user = 'unconfigured-user';
28     our $passwd = 'unconfigured-password';
29    
30 dpavlin 52 our $max_results = $ENV{MAX_RESULTS} || 3000; # FIXME must be enough for all users
31 dpavlin 51 our $objectclass_default = 'hrEduPerson';
32 dpavlin 36
33 dpavlin 51 our $objectclass;
34 dpavlin 46
35     $SIG{__DIE__} = sub {
36     warn "!!! DIE ", @_;
37     die @_;
38     };
39    
40 dpavlin 32 require 'config.pl' if -e 'config.pl';
41    
42 dpavlin 47 # we need reverse LDAP -> SQL mapping for where clause
43 dpavlin 46
44 dpavlin 39 my $ldap_sql_mapping = {
45     'uid' => 'userid',
46 dpavlin 63 'objectGUID' => 'b.borrowernumber',
47 dpavlin 39 'displayName' => 'surname',
48     'sn' => 'surname',
49 dpavlin 60 'pager' => 'a.attribute', # was: rfid_sid
50 dpavlin 36 };
51    
52     sub __sql_column {
53     my $name = shift;
54     $ldap_sql_mapping->{$name} || $name;
55     }
56    
57 dpavlin 32 use constant RESULT_OK => {
58     'matchedDN' => '',
59     'errorMessage' => '',
60     'resultCode' => LDAP_SUCCESS
61     };
62    
63     # constructor
64     sub new {
65     my ($class, $sock) = @_;
66     my $self = $class->SUPER::new($sock);
67     print "connection from: ", $sock->peerhost(), "\n";
68     return $self;
69     }
70    
71     # the bind operation
72     sub bind {
73     my $self = shift;
74     my $reqData = shift;
75     warn "# bind ",dump($reqData);
76     return RESULT_OK;
77     }
78    
79 dpavlin 39 our @values;
80     our @limits;
81    
82     sub __ldap_search_to_sql {
83     my ( $how, $what ) = @_;
84 dpavlin 44 warn "### __ldap_search_to_sql $how ",dump( $what ),"\n";
85 dpavlin 39 if ( $how eq 'equalityMatch' && defined $what ) {
86     my $name = $what->{attributeDesc} || warn "ERROR: no attributeDesc?";
87     my $value = $what->{assertionValue} || warn "ERROR: no assertionValue?";
88 dpavlin 46
89     if ( lc $name eq 'objectclass' ) {
90     $objectclass = $value;
91     } else {
92 dpavlin 39 push @limits, __sql_column($name) . ' = ?';
93     push @values, $value;
94     }
95     } elsif ( $how eq 'substrings' ) {
96     foreach my $substring ( @{ $what->{substrings} } ) {
97     my $name = $what->{type} || warn "ERROR: no type?";
98     while ( my($op,$value) = each %$substring ) {
99     push @limits, __sql_column($name) . ' LIKE ?';
100     if ( $op eq 'any' ) {
101     $value = '%' . $value . '%';
102     } else {
103     warn "UNSUPPORTED: op $op - using plain $value";
104     }
105     push @values, $value;
106     }
107     }
108     } elsif ( $how eq 'present' ) {
109     my $name = __sql_column( $what );
110     push @limits, "$name IS NOT NULL and length($name) > 1";
111     ## XXX length(foo) > 1 to avoid empty " " strings
112     } else {
113 dpavlin 44 warn "UNSUPPORTED: $how ",dump( $what );
114 dpavlin 39 }
115     }
116    
117 dpavlin 47
118     # my ( $dn,$attributes ) = _dn_attributes( $row, $base );
119    
120     sub _dn_attributes {
121     my ($row,$base) = @_;
122    
123 dpavlin 62 warn "## row = ",dump( $row ) if $debug;
124 dpavlin 47
125     die "no objectClass column in ",dump( $row ) unless defined $row->{objectClass};
126    
127     $row->{objectClass} = [ split(/\s+/, $row->{objectClass}) ] if $row->{objectClass} =~ m{\n};
128    
129 dpavlin 62 warn "## row = ",dump( $row ) if $debug;
130 dpavlin 47
131     my $dn = delete( $row->{dn} ) || die "no dn in ",dump( $row );
132    
133     # this does some sanity cleanup for our data
134 dpavlin 55 # my $base_as_domain = $base;
135     # $base_as_domain =~ s{dn=}{.};
136     # $base_as_domain =~ s{^\.}{@};
137     # $dn =~ s{$base_as_domain$}{};
138     #
139     # $dn .= ',' . $base unless $dn =~ m{,}; # add base if none present
140 dpavlin 47
141     return ($dn, $row);
142     }
143    
144    
145 dpavlin 32 # the search operation
146     sub search {
147     my $self = shift;
148     my $reqData = shift;
149     print "searching...\n";
150    
151 dpavlin 36 warn "# " . localtime() . " request = ", dump($reqData);
152 dpavlin 32
153     my $base = $reqData->{'baseObject'}; # FIXME use it?
154    
155     my @entries;
156 dpavlin 36 if ( $reqData->{'filter'} ) {
157 dpavlin 32
158 dpavlin 36 my $sql_where = '';
159 dpavlin 39 @values = ();
160 dpavlin 51 $objectclass = '';
161 dpavlin 32
162 dpavlin 45 foreach my $filter ( keys %{ $reqData->{'filter'} } ) {
163 dpavlin 32
164 dpavlin 45 warn "## filter $filter ", dump( $reqData->{'filter'}->{ $filter } ), "\n";
165 dpavlin 32
166 dpavlin 39 @limits = ();
167 dpavlin 36
168 dpavlin 45 if ( ref $reqData->{'filter'}->{ $filter } eq 'ARRAY' ) {
169 dpavlin 40
170 dpavlin 45 foreach my $filter ( @{ $reqData->{'filter'}->{ $filter } } ) {
171 dpavlin 40 warn "### filter ",dump($filter),$/;
172     foreach my $how ( keys %$filter ) {
173     if ( $how eq 'or' ) {
174     __ldap_search_to_sql( %$_ ) foreach ( @{ $filter->{$how} } );
175     } else {
176     __ldap_search_to_sql( $how, $filter->{$how} );
177     }
178     warn "## limits ",dump(@limits), " values ",dump(@values);
179 dpavlin 36 }
180     }
181 dpavlin 40
182     } else {
183 dpavlin 45 __ldap_search_to_sql( $filter, $reqData->{'filter'}->{$filter} );
184 dpavlin 36 }
185    
186 dpavlin 50 $sql_where .= ' ' . join( " $filter ", @limits ) if @limits;
187 dpavlin 49
188 dpavlin 36 }
189    
190 dpavlin 51 $objectclass ||= $objectclass_default;
191    
192 dpavlin 50 my $sql_select = read_file( lc "sql/$objectclass.sql" );
193 dpavlin 36 if ( $sql_where ) {
194 dpavlin 50 if ( $sql_select !~ m{where}i ) {
195     $sql_where = " where $sql_where";
196     } else {
197     $sql_where = " and $sql_where";
198     }
199 dpavlin 36 }
200    
201 dpavlin 46
202 dpavlin 52 my $sql
203     = $sql_select
204     . $sql_where
205 dpavlin 62 # . ( $objectclass =~ m{person}i ? " LIMIT $max_results" : '' ) # add limit just for persons
206 dpavlin 52 ;
207    
208     warn "# SQL:\n$sql\n# DATA: ",dump( @values );
209 dpavlin 87 my $dbh = DBI->connect_cached($dsn . $database, $user,$passwd, { RaiseError => 1, AutoCommit => 1 }) || die $DBI::errstr;
210 dpavlin 52 my $sth = $dbh->prepare( $sql );
211 dpavlin 36 $sth->execute( @values );
212    
213     warn "# ", $sth->rows, " results for ",dump( $reqData->{'filter'} );
214    
215 dpavlin 48 my $last_dn = '?';
216     my $entry;
217    
218 dpavlin 32 while (my $row = $sth->fetchrow_hashref) {
219    
220 dpavlin 47 my ( $dn, $attributes ) = _dn_attributes( $row, $base );
221 dpavlin 46
222 dpavlin 48 warn "# dn $last_dn ... $dn\n";
223 dpavlin 32
224 dpavlin 48 if ( $dn ne $last_dn ) {
225 dpavlin 32
226 dpavlin 48 if ( $entry ) {
227     #$entry->changetype( 'modify' );
228     warn "### entry ",$entry->dump( \*STDERR );
229     push @entries, $entry;
230     undef $entry;
231     }
232 dpavlin 40
233 dpavlin 58 $dn =~ s{@[^,]+}{};
234    
235 dpavlin 48 $entry = Net::LDAP::Entry->new;
236     $entry->dn( $dn );
237    
238     $entry->add( %$attributes );
239    
240     } else {
241     foreach my $n ( keys %$attributes ) {
242     my $v = $attributes->{$n};
243     warn "# attr $n = $v\n";
244     $entry->add( $n, $v ) if $entry->get_value( $n ) ne $v;
245     }
246     }
247    
248    
249     $last_dn = $dn;
250    
251 dpavlin 32 }
252    
253 dpavlin 53 if ( $entry ) {
254     warn "### last entry ",$entry->dump( \*STDERR );
255     push @entries, $entry;
256     }
257 dpavlin 48
258 dpavlin 32 } else {
259     warn "UNKNOWN request: ",dump( $reqData );
260     }
261    
262     return RESULT_OK, @entries;
263     }
264    
265     # the rest of the operations will return an "unwilling to perform"
266    
267     1;

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