1 package Text::Tradition::Directory;
7 use Encode qw/ decode_utf8 /;
8 use KiokuDB::GC::Naive;
10 use KiokuDB::TypeMap::Entry::Naive;
12 use Text::Tradition::Error;
15 use KiokuX::User::Util qw(crypt_password);
16 use Text::Tradition::Store;
17 use Text::Tradition::User;
18 use Text::Tradition::TypeMap::Entry;
20 extends 'KiokuX::Model';
22 use vars qw/ $VERSION /;
27 Text::Tradition::Directory - a KiokuDB interface for storing and retrieving
28 traditions and their owners
32 use Text::Tradition::Directory;
33 my $d = Text::Tradition::Directory->new(
34 'dsn' => 'dbi:SQLite:mytraditions.db',
35 'extra_args' => { 'create' => 1 },
38 my $tradition = Text::Tradition->new( @args );
39 my $stemma = $tradition->add_stemma( dotfile => $dotfile ); # if Analysis module installed
40 $d->save_tradition( $tradition );
42 foreach my $id ( $d->traditions ) {
43 print $d->tradition( $id )->name;
47 my $userstore = Text::Tradition::UserStore->new(dsn => 'dbi:SQLite:foo.db');
48 my $newuser = $userstore->add_user({ username => 'fred',
49 password => 'somepassword' });
51 my $fetchuser = $userstore->find_user({ username => 'fred' });
52 if($fetchuser->check_password('somepassword')) {
53 ## login user or .. whatever
56 my $user = $userstore->deactivate_user({ username => 'fred' });
58 ## shouldnt be able to login etc
63 Text::Tradition::Directory is an interface for storing and retrieving text
64 traditions and all their data, including an associated stemma hypothesis
65 and a user who has ownership rights to the tradition data. It is an
66 instantiation of a KiokuDB::Model, storing traditions and associated
69 The Text::Tradition::Directory package also includes the
70 L<Text::Tradition::User> class for user objects, and the
71 L<Text::Tradition::Ownership> role which extends the Text::Tradition class
72 to handle user ownership.
78 Constant for the minimum password length when validating passwords,
83 has MIN_PASS_LEN => ( is => 'ro', isa => 'Num', default => sub { 8 } );
89 Returns a Directory object.
93 Returns a hashref mapping of ID => name for all traditions in the directory.
95 =head2 tradition( $id )
97 Returns the Text::Tradition object of the given ID.
99 =head2 save( $tradition )
101 Writes the given tradition to the database, returning its ID.
103 =head2 delete( $tradition )
105 Deletes the given tradition object from the database.
106 WARNING!! Garbage collection does not yet work. Use this sparingly.
114 use_ok 'Text::Tradition::Directory';
116 my $fh = File::Temp->new();
117 my $file = $fh->filename;
119 my $dsn = "dbi:SQLite:dbname=$file";
121 my $t = Text::Tradition->new(
123 'input' => 'Tabular',
124 'file' => 't/data/simple.txt',
126 my $stemma_enabled = $t->can( 'add_stemma' );
129 my $d = Text::Tradition::Directory->new( 'dsn' => $dsn,
130 'extra_args' => { 'create' => 1 } );
131 ok( $d->$_isa('Text::Tradition::Directory'), "Got directory object" );
133 my $scope = $d->new_scope;
134 $uuid = $d->save( $t );
135 ok( $uuid, "Saved test tradition" );
138 skip "Analysis package not installed", 5 unless $stemma_enabled;
139 my $s = $t->add_stemma( dotfile => 't/data/simple.dot' );
140 ok( $d->save( $t ), "Updated tradition with stemma" );
141 is( $d->tradition( $uuid ), $t, "Correct tradition returned for id" );
142 is( $d->tradition( $uuid )->stemma(0), $s, "...and it has the correct stemma" );
145 } catch( Text::Tradition::Error $e ) {
146 is( $e->ident, 'database error', "Got exception trying to save stemma directly" );
147 like( $e->message, qr/Cannot directly save non-Tradition object/,
148 "Exception has correct message" );
152 my $nt = Text::Tradition->new(
154 'input' => 'CollateX',
155 'file' => 't/data/Collatex-16.xml',
157 ok( $nt->$_isa('Text::Tradition'), "Made new tradition" );
160 my $f = Text::Tradition::Directory->new( 'dsn' => $dsn );
161 my $scope = $f->new_scope;
162 is( scalar $f->traditionlist, 1, "Directory index has our tradition" );
163 my $nuuid = $f->save( $nt );
164 ok( $nuuid, "Stored second tradition" );
165 my @tlist = $f->traditionlist;
166 is( scalar @tlist, 2, "Directory index has both traditions" );
167 my $tf = $f->tradition( $uuid );
168 my( $tlobj ) = grep { $_->{'id'} eq $uuid } @tlist;
169 is( $tlobj->{'name'}, $tf->name, "Directory index has correct tradition name" );
170 is( $tf->name, $t->name, "Retrieved the tradition from a new directory" );
173 skip "Analysis package not installed", 4 unless $stemma_enabled;
174 $sid = $f->object_to_id( $tf->stemma(0) );
176 $f->tradition( $sid );
177 } catch( Text::Tradition::Error $e ) {
178 is( $e->ident, 'database error', "Got exception trying to fetch stemma directly" );
179 like( $e->message, qr/not a Text::Tradition/, "Exception has correct message" );
183 } catch( Text::Tradition::Error $e ) {
184 is( $e->ident, 'database error', "Got exception trying to delete stemma directly" );
185 like( $e->message, qr/Cannot directly delete non-Tradition object/,
186 "Exception has correct message" );
191 ok( !$f->exists( $uuid ), "Object is deleted from DB" );
192 ok( !$f->exists( $sid ), "Object stemma also deleted from DB" ) if $stemma_enabled;
193 is( scalar $f->traditionlist, 1, "Object is deleted from index" );
197 my $g = Text::Tradition::Directory->new( 'dsn' => $dsn );
198 my $scope = $g->new_scope;
199 is( scalar $g->traditionlist, 1, "Now one object in new directory index" );
200 my $ntobj = $g->tradition( 'CX' );
201 my @w1 = sort { $a->sigil cmp $b->sigil } $ntobj->witnesses;
202 my @w2 = sort{ $a->sigil cmp $b->sigil } $nt->witnesses;
203 is_deeply( \@w1, \@w2, "Looked up remaining tradition by name" );
209 use Text::Tradition::TypeMap::Entry;
213 isa => 'KiokuDB::TypeMap',
215 KiokuDB::TypeMap->new(
217 # now that we fall back to YAML deflation, all attributes of
218 # Text::Tradition will be serialized to YAML as individual objects
219 # Except if we declare a specific entry type here
221 KiokuDB::TypeMap::Entry::MOP->new(),
222 # We need users to be naive entries so that they hold
223 # references to the original tradition objects, not clones
224 "Text::Tradition::User" =>
225 KiokuDB::TypeMap::Entry::MOP->new(),
226 "Text::Tradition::Collation" =>
227 KiokuDB::TypeMap::Entry::MOP->new(),
228 "Text::Tradition::Witness" =>
229 KiokuDB::TypeMap::Entry::MOP->new(),
230 "Graph" => Text::Tradition::TypeMap::Entry->new(),
231 "Set::Scalar" => Text::Tradition::TypeMap::Entry->new(),
237 # Push some columns into the extra_args
238 around BUILDARGS => sub {
248 if( $args->{'dsn'} =~ /^dbi/ ) { # We're using Backend::DBI
249 @column_args = ( 'columns',
250 [ 'name' => { 'data_type' => 'varchar', 'is_nullable' => 1 },
251 'public' => { 'data_type' => 'bool', 'is_nullable' => 1 } ] );
253 my $ea = $args->{'extra_args'};
254 if( ref( $ea ) eq 'ARRAY' ) {
255 push( @$ea, @column_args );
256 } elsif( ref( $ea ) eq 'HASH' ) {
257 $ea = { %$ea, @column_args };
259 $ea = { @column_args };
261 $args->{'extra_args'} = $ea;
263 return $class->$orig( $args );
266 override _build_directory => sub {
268 Text::Tradition::Store->connect(@{ $self->_connect_args },
269 resolver_constructor => sub {
271 $class->new({ typemap => $self->directory->merged_typemap,
272 fallback_entry => Text::Tradition::TypeMap::Entry->new() });
276 ## These checks don't cover store($id, $obj)
277 # before [ qw/ store update insert delete / ] => sub {
278 before [ qw/ delete / ] => sub {
281 foreach my $obj ( @_ ) {
282 if( ref( $obj ) && !$obj->$_isa( 'Text::Tradition' )
283 && !$obj->$_isa('Text::Tradition::User') ) {
284 # Is it an id => Tradition hash?
285 if( ref( $obj ) eq 'HASH' && keys( %$obj ) == 1 ) {
286 my( $k ) = keys %$obj;
287 next if $obj->{$k}->$_isa('Text::Tradition');
289 push( @nontrad, $obj );
293 throw( "Cannot directly save non-Tradition object of type "
294 . ref( $nontrad[0] ) );
298 # TODO Garbage collection doesn't work. Suck it up and live with the
300 after delete => sub {
302 my $gc = KiokuDB::GC::Naive->new( backend => $self->directory->backend );
303 $self->directory->backend->delete( $gc->garbage->members );
308 return $self->store( @_ );
312 my( $self, $id ) = @_;
313 my $obj = $self->lookup( $id );
315 # Try looking up by name.
316 foreach my $item ( $self->traditionlist ) {
317 if( $item->{'name'} eq $id ) {
318 $obj = $self->lookup( $item->{'id'} );
323 if( $obj && !$obj->$_isa('Text::Tradition') ) {
324 throw( "Retrieved object is a " . ref( $obj ) . ", not a Text::Tradition" );
333 return $self->user_traditionlist($user) if($user);
336 # If we are using DBI, we can do it the easy way; if not, the hard way.
337 # Easy way still involves making a separate DBI connection. Ew.
338 if( $self->dsn =~ /^dbi:(\w+):/ ) {
340 my @connection = @{$self->directory->backend->connect_info};
341 # Get rid of KiokuDB-specific arg
342 pop @connection if scalar @connection > 4;
343 $connection[3]->{'sqlite_unicode'} = 1 if $dbtype eq 'SQLite';
344 $connection[3]->{'pg_enable_utf8'} = 1 if $dbtype eq 'Pg';
345 my $dbh = DBI->connect( @connection );
346 my $q = $dbh->prepare( 'SELECT id, name, public from entries WHERE class = "Text::Tradition"' );
348 while( my @row = $q->fetchrow_array ) {
349 my( $id, $name ) = @row;
350 # Horrible horrible hack
351 $name = decode_utf8( $name ) if $dbtype eq 'mysql';
352 push( @tlist, { 'id' => $row[0], 'name' => $row[1], 'public' => $row[2] } );
355 $self->scan( sub { my $o = shift;
356 push( @tlist, { 'id' => $self->object_to_id( $o ),
358 'public' => $o->public } ) } );
364 Text::Tradition::Error->throw(
365 'ident' => 'database error',
371 # has 'directory' => (
373 # isa => 'KiokuX::Model',
377 ## TODO: Some of these methods should probably optionally take $user objects
378 ## instead of hashrefs.
380 ## It also occurs to me that all these methods don't need to be named
381 ## XX_user, but leaving that way for now incase we merge this code
382 ## into ::Directory for one-store.
384 =head1 USER DIRECTORY METHODS
386 =head2 add_user( $userinfo )
388 Takes a hashref of C<username>, C<password>.
390 Create a new user object, store in the KiokuDB backend, and return it.
395 my ($self, $userinfo) = @_;
397 my $username = $userinfo->{username};
398 my $password = $userinfo->{password};
399 my $role = $userinfo->{role} || 'user';
401 throw( "No username given" ) unless $username;
402 throw( "Invalid password - must be at least " . $self->MIN_PASS_LEN
403 . " characters long" )
404 unless ( $self->validate_password($password) || $username =~ /^https?:/ );
406 my $user = Text::Tradition::User->new(
408 password => ($password ? crypt_password($password) : ''),
409 email => ($userinfo->{email} ? $userinfo->{email} : $username),
413 $self->store($user->kiokudb_object_id, $user);
418 =head2 create_user( $userinfo )
420 Takes a hashref that can either be suitable for add_user (see above) or be
421 a hash of OpenID user information from Credential::OpenID.
426 my ($self, $userinfo) = @_;
428 ## No username means probably an OpenID based user
429 if(!exists $userinfo->{username}) {
430 _extract_openid_data($userinfo);
433 return $self->add_user($userinfo);
436 ## Not quite sure where this method should be.. Auth /
437 ## Credential::OpenID just pass us back the chunk of extension data
438 sub _extract_openid_data {
441 ## Spec says SHOULD use url as identifier
442 $userinfo->{username} = $userinfo->{url};
444 ## Use email addy as display if available
445 if(exists $userinfo->{extensions} &&
446 exists $userinfo->{extensions}{'http://openid.net/srv/ax/1.0'} &&
447 defined $userinfo->{extensions}{'http://openid.net/srv/ax/1.0'}{'value.email'}) {
448 ## Somewhat ugly attribute extension reponse, contains
449 ## google-email string which we can use as the id
451 $userinfo->{email} = $userinfo->{extensions}{'http://openid.net/srv/ax/1.0'}{'value.email'};
457 =head2 find_user( $userinfo )
459 Takes a hashref of C<username>, and possibly openIDish results from
460 L<Net::OpenID::Consumer>.
462 Fetches the user object for the given username and returns it.
467 my ($self, $userinfo) = @_;
469 ## No username means probably an OpenID based user
470 if(!exists $userinfo->{username}) {
471 _extract_openid_data($userinfo);
474 my $username = $userinfo->{username};
476 ## No logins if user is deactivated (use lookup to fetch to re-activate)
477 my $user = $self->lookup(Text::Tradition::User->id_for_user($username));
478 return if(!$user || !$user->active);
480 # print STDERR "Found user, $username, email is :", $user->email, ":\n";
485 =head2 modify_user( $userinfo )
487 Takes a hashref of C<username> and C<password> (same as add_user).
489 Retrieves the user, and updates it with the new information. Username
490 changing is not currently supported.
492 Returns the updated user object, or undef if not found.
497 my ($self, $userinfo) = @_;
498 my $username = $userinfo->{username};
499 my $password = $userinfo->{password};
500 my $role = $userinfo->{role};
502 throw( "Missing username" ) unless $username;
504 my $user = $self->find_user({ username => $username });
505 throw( "Could not find user $username" ) unless $user;
508 throw( "Bad password" ) unless $self->validate_password($password);
509 $user->password(crypt_password($password));
515 $self->update($user);
520 =head2 deactivate_user( $userinfo )
522 Takes a hashref of C<username>.
524 Sets the users C<active> flag to false (0), and sets all traditions
525 assigned to them to non-public, updates the storage and returns the
528 Returns undef if user not found.
532 sub deactivate_user {
533 my ($self, $userinfo) = @_;
534 my $username = $userinfo->{username};
536 throw( "Need to specify a username for deactivation" ) unless $username;
538 my $user = $self->find_user({ username => $username });
539 throw( "User $username not found" ) unless $user;
542 foreach my $tradition (@{ $user->traditions }) {
543 ## Not implemented yet
544 # $tradition->public(0);
547 ## Should we be using Text::Tradition::Directory also?
548 $self->update(@{ $user->traditions });
550 $self->update($user);
555 =head2 reactivate_user( $userinfo )
557 Takes a hashref of C<username>.
559 Returns the user object if already activated. Activates (sets the
560 active flag to true (1)), updates the storage and returns the user.
562 Returns undef if the user is not found.
566 sub reactivate_user {
567 my ($self, $userinfo) = @_;
568 my $username = $userinfo->{username};
570 throw( "Need to specify a username for reactivation" ) unless $username;
572 my $user = $self->lookup(Text::Tradition::User->id_for_user($username));
573 throw( "User $username not found" ) unless $user;
575 return $user if $user->active;
578 $self->update($user);
583 =head2 delete_user( $userinfo )
585 CAUTION: Deletes actual data!
587 Takes a hashref of C<username>.
589 Returns undef if the user doesn't exist.
591 Removes the user from the store and returns 1.
596 my ($self, $userinfo) = @_;
597 my $username = $userinfo->{username};
599 throw( "Need to specify a username for deletion" ) unless $username;
601 my $user = $self->find_user({ username => $username });
602 throw( "User $username not found" ) unless $user;
604 ## Should we be using Text::Tradition::Directory for this bit?
605 $self->delete( @{ $user->traditions });
608 $self->delete($user);
613 =head2 validate_password( $password )
615 Takes a password string. Returns true if it is longer than
616 L</MIN_PASS_LEN>, false otherwise.
618 Used internally by L</add_user>.
622 sub validate_password {
623 my ($self, $password) = @_;
625 return if !$password;
626 return if length($password) < $self->MIN_PASS_LEN;
631 =head2 user_traditionlist( $user )
633 Returns a tradition list (see specification above) but containing only
634 those traditions visible to the specified user. If $user is the string
635 'public', returns only publicly-viewable traditions.
639 sub user_traditionlist {
640 my ($self, $user) = @_;
643 if(ref $user && $user->is_admin) {
645 return $self->traditionlist();
647 ## We have a user object already, so just fetch its traditions and use tose
648 foreach my $t (@{ $user->traditions }) {
649 push( @tlist, { 'id' => $self->object_to_id( $t ),
650 'name' => $t->name } );
653 } elsif($user ne 'public') {
654 die "Passed neither a user object nor 'public' to user_traditionlist";
657 ## Search for all traditions which allow public viewing
658 my @list = grep { $_->{public} } $self->traditionlist();
666 This package is free software and is provided "as is" without express
667 or implied warranty. You can redistribute it and/or modify it under
668 the same terms as Perl itself.
672 Tara L Andrews E<lt>aurum@cpan.orgE<gt> (initial release)
674 Shadowcat Systems L<http://www.scsys.co.uk/> (user functionality; making it all work)