1 use strict; use warnings;
2 package OpenILS::Utils::CStoreEditor;
3 use OpenILS::Application::AppUtils;
4 use OpenSRF::AppSession;
5 use OpenSRF::EX qw(:try);
6 use OpenILS::Utils::Fieldmapper;
9 use OpenSRF::Utils::JSON;
10 use OpenSRF::Utils::Logger qw($logger);
11 my $U = "OpenILS::Application::AppUtils";
20 # 'biblio.record_entry' => { update => 'UPDATE_MARC' },
21 # 'asset.copy' => { update => 'UPDATE_COPY'},
22 # 'asset.call_number' => { update => 'UPDATE_VOLUME'},
23 # 'action.circulation' => { retrieve => 'VIEW_CIRCULATIONS'},
26 sub flush_forced_xacts {
27 for my $k ( keys %xact_ed_cache ) {
29 $xact_ed_cache{$k}->rollback;
33 delete $xact_ed_cache{$k};
37 # -----------------------------------------------------------------------------
38 # Export some useful functions
39 # -----------------------------------------------------------------------------
40 use vars qw(@EXPORT_OK %EXPORT_TAGS);
42 use base qw/Exporter/;
43 push @EXPORT_OK, ( 'new_editor', 'new_rstore_editor' );
44 %EXPORT_TAGS = ( funcs => [ qw/ new_editor new_rstore_editor / ] );
46 sub new_editor { return OpenILS::Utils::CStoreEditor->new(@_); }
48 sub new_rstore_editor {
49 my $e = OpenILS::Utils::CStoreEditor->new(@_);
50 $e->app('open-ils.reporter-store');
55 # -----------------------------------------------------------------------------
57 # -----------------------------------------------------------------------------
58 use constant E => 'error';
59 use constant W => 'warn';
60 use constant I => 'info';
61 use constant D => 'debug';
62 use constant A => 'activity';
66 # -----------------------------------------------------------------------------
68 # xact=><true> : creates a storage transaction
69 # authtoken=>$token : the login session key
70 # -----------------------------------------------------------------------------
72 my( $class, %params ) = @_;
73 $class = ref($class) || $class;
74 my $self = bless( \%params, $class );
75 $self->{checked_perms} = {};
81 my( $self, $app ) = @_;
82 $self->{app} = $app if $app;
83 $self->{app} = 'open-ils.cstore' unless $self->{app};
88 # -----------------------------------------------------------------------------
89 # Log the editor metadata along with the log string
90 # -----------------------------------------------------------------------------
92 my( $self, $lev, $str ) = @_;
96 } elsif ($self->{xact}) {
101 $s .= "0" unless $self->requestor;
102 $s .= $self->requestor->id if $self->requestor;
104 $logger->$lev("$s $str");
107 # -----------------------------------------------------------------------------
108 # Verifies the auth token and fetches the requestor object
109 # -----------------------------------------------------------------------------
112 $self->log(D, "checking auth token ".$self->authtoken);
113 my ($reqr, $evt) = $U->checkses($self->authtoken);
114 $self->event($evt) if $evt;
115 return $self->{requestor} = $reqr;
122 $cache = OpenSRF::Utils::Cache->new('global') unless $cache;
123 $self->log(D, "checking cached auth token ".$self->authtoken);
124 my $user = $cache->get_cache("oils_auth_".$self->authtoken);
125 return $self->{requestor} = $user->{userobj} if $user;
126 $self->event(OpenILS::Event->new('NO_SESSION'));
132 # -----------------------------------------------------------------------------
133 # Returns the last generated event
134 # -----------------------------------------------------------------------------
136 my( $self, $evt ) = @_;
137 $self->{event} = $evt if $evt;
138 return $self->{event};
141 # -----------------------------------------------------------------------------
142 # Destroys the transaction and disconnects where necessary,
143 # then returns the last event that occurred
144 # -----------------------------------------------------------------------------
153 # -----------------------------------------------------------------------------
154 # Clears the last caught event
155 # -----------------------------------------------------------------------------
158 $self->{event} = undef;
162 my($self, $died) = @_;
163 $self->{died} = $died if defined $died;
164 return $self->{died};
168 my( $self, $auth ) = @_;
169 $self->{authtoken} = $auth if $auth;
170 return $self->{authtoken};
175 $self->{timeout} = $to if defined $to;
176 return defined($self->{timeout}) ? $self->{timeout} : 60;
179 # -----------------------------------------------------------------------------
180 # fetches the session, creating if necessary. If 'xact' is true on this
181 # object, a db session is created
182 # -----------------------------------------------------------------------------
184 my( $self, $session ) = @_;
185 $self->{session} = $session if $session;
187 if(!$self->{session}) {
188 $self->{session} = OpenSRF::AppSession->create($self->app);
190 if( ! $self->{session} ) {
191 my $str = "Error creating cstore session with OpenSRF::AppSession->create()!";
193 throw OpenSRF::EX::ERROR ($str);
196 $self->{session}->connect if $self->{xact} or $self->{connect} or $always_xact;
197 $self->xact_begin if $self->{xact} or $always_xact;
200 $xact_ed_cache{$self->{xact_id}} = $self if $always_xact and $self->{xact_id};
201 return $self->{session};
205 # -----------------------------------------------------------------------------
206 # Starts a storage transaction
207 # -----------------------------------------------------------------------------
210 return $self->{xact_id} if $self->{xact_id};
211 $self->session->connect unless $self->session->state == OpenSRF::AppSession::CONNECTED();
212 $self->log(D, "starting new database transaction");
213 unless($self->{xact_id}) {
214 my $stat = $self->request($self->app . '.transaction.begin');
215 $self->log(E, "error starting database transaction") unless $stat;
216 $self->{xact_id} = $stat;
219 return $self->{xact_id};
222 # -----------------------------------------------------------------------------
223 # Commits a storage transaction
224 # -----------------------------------------------------------------------------
227 return unless $self->{xact_id};
228 $self->log(D, "comitting db session");
229 my $stat = $self->request($self->app.'.transaction.commit');
230 $self->log(E, "error comitting database transaction") unless $stat;
231 delete $self->{xact_id};
232 delete $self->{xact};
236 # -----------------------------------------------------------------------------
237 # Rolls back a storage stransaction
238 # -----------------------------------------------------------------------------
241 return unless $self->{session} and $self->{xact_id};
242 $self->log(I, "rolling back db session");
243 my $stat = $self->request($self->app.".transaction.rollback");
244 $self->log(E, "error rolling back database transaction") unless $stat;
245 delete $self->{xact_id};
246 delete $self->{xact};
251 # -----------------------------------------------------------------------------
252 # Savepoint functions. If no savepoint name is provided, the same name is used
253 # for each successive savepoint, in which case only the last savepoint set can
254 # be released or rolled back.
255 # -----------------------------------------------------------------------------
258 my $name = shift || 'savepoint';
259 return unless $self->{session} and $self->{xact_id};
260 $self->log(I, "setting savepoint '$name'");
261 my $stat = $self->request($self->app.".savepoint.set", $name)
262 or $self->log(E, "error setting savepoint '$name'");
266 sub release_savepoint {
268 my $name = shift || 'savepoint';
269 return unless $self->{session} and $self->{xact_id};
270 $self->log(I, "releasing savepoint '$name'");
271 my $stat = $self->request($self->app.".savepoint.release", $name)
272 or $self->log(E, "error releasing savepoint '$name'");
276 sub rollback_savepoint {
278 my $name = shift || 'savepoint';
279 return unless $self->{session} and $self->{xact_id};
280 $self->log(I, "rollback savepoint '$name'");
281 my $stat = $self->request($self->app.".savepoint.rollback", $name)
282 or $self->log(E, "error rolling back savepoint '$name'");
287 # -----------------------------------------------------------------------------
288 # Rolls back the transaction and disconnects
289 # -----------------------------------------------------------------------------
292 $self->xact_rollback;
298 $self->session->disconnect if $self->{session};
299 delete $self->{session};
303 # -----------------------------------------------------------------------------
304 # commits the db session and destroys the session
305 # returns the status of the commit call
306 # -----------------------------------------------------------------------------
309 return unless $self->{xact_id};
310 my $stat = $self->xact_commit;
315 # -----------------------------------------------------------------------------
316 # clears all object data. Does not commit the db transaction.
317 # -----------------------------------------------------------------------------
321 $$self{$_} = undef for (keys %$self);
325 # -----------------------------------------------------------------------------
327 # -----------------------------------------------------------------------------
336 # -----------------------------------------------------------------------------
337 # Does a simple storage request
338 # -----------------------------------------------------------------------------
340 my( $self, $method, @params ) = @_;
344 my $argstr = __arg_to_string( (scalar(@params)) == 1 ? $params[0] : \@params);
345 my $locale = $self->session->session_locale;
347 $self->log(I, "request $locale $method $argstr");
349 if( ($self->{xact} or $always_xact) and
350 $self->session->state != OpenSRF::AppSession::CONNECTED() ) {
351 #$logger->error("CStoreEditor lost it's connection!!");
352 throw OpenSRF::EX::ERROR ("CStore connection timed out - transaction cannot continue");
358 my $req = $self->session->request($method, @params);
360 if($self->substream) {
361 $self->log(D,"running in substream mode");
363 while( my $resp = $req->recv(timeout => $self->timeout) ) {
364 push(@$val, $resp->content) if $resp->content;
368 my $resp = $req->recv(timeout => $self->timeout);
371 $self->log(E, "request error $method : $argstr : $err");
373 $val = $resp->content if $resp;
381 $self->log(E, "request error $method : $argstr : $err");
389 my( $self, $bool ) = @_;
390 $self->{substream} = $bool if defined $bool;
391 return $self->{substream};
395 # -----------------------------------------------------------------------------
396 # Sets / Returns the requestor object. This is set when checkauth succeeds.
397 # -----------------------------------------------------------------------------
399 my($self, $requestor) = @_;
400 $self->{requestor} = $requestor if $requestor;
401 return $self->{requestor};
406 # -----------------------------------------------------------------------------
407 # Holds the last data received from a storage call
408 # -----------------------------------------------------------------------------
410 my( $self, $data ) = @_;
411 $self->{data} = $data if defined $data;
412 return $self->{data};
416 # -----------------------------------------------------------------------------
417 # True if this perm has already been checked at this org
418 # -----------------------------------------------------------------------------
420 my( $self, $perm, $org ) = @_;
421 $self->{checked_perms}->{$org} = {}
422 unless $self->{checked_perms}->{$org};
423 my $checked = $self->{checked_perms}->{$org}->{$perm};
425 $self->{checked_perms}->{$org}->{$perm} = 1;
433 # -----------------------------------------------------------------------------
434 # Returns true if the requested perm is allowed. If the perm check fails,
435 # $e->event is set and undef is returned
436 # The perm user is $e->requestor->id and perm org defaults to the requestor's
438 # if perm is an array of perms, method will return true at the first allowed
439 # permission. If none of the perms are allowed, the perm_failure event
440 # is created with the last perm to fail
441 # -----------------------------------------------------------------------------
445 transform => 'permission.usr_has_perm',
455 my $OBJECT_PERM_QUERY = {
458 transform => 'permission.usr_has_object_perm',
469 my( $self, $perm, $org, $object, $hint ) = @_;
470 my $uid = $self->requestor->id;
471 $org ||= $self->requestor->ws_ou;
473 my $perms = (ref($perm) eq 'ARRAY') ? $perm : [$perm];
475 for $perm (@$perms) {
476 $self->log(I, "checking perms user=$uid, org=$org, perm=$perm");
481 # determine the ID field and json_hint from the object
482 my $id_field = $object->Identity;
483 $params = [$perm, $object->json_hint, $object->$id_field];
485 # we were passed an object-id and json_hint
486 $params = [$perm, $hint, $object];
488 push(@$params, $org) if $org;
489 $OBJECT_PERM_QUERY->{select}->{au}->[0]->{params} = $params;
490 $OBJECT_PERM_QUERY->{where}->{id} = $uid;
491 return 1 if $U->is_true($self->json_query($OBJECT_PERM_QUERY)->[0]->{has_perm});
494 $PERM_QUERY->{select}->{au}->[0]->{params} = [$perm, $org];
495 $PERM_QUERY->{where}->{id} = $uid;
496 return 1 if $U->is_true($self->json_query($PERM_QUERY)->[0]->{has_perm});
500 # set the perm failure event if the permission check returned false
501 my $e = OpenILS::Event->new('PERM_FAILURE', ilsperm => $perm, ilspermloc => $org);
507 # -----------------------------------------------------------------------------
508 # Returns the list of object IDs this user has object-specific permissions for
509 # -----------------------------------------------------------------------------
510 sub objects_allowed {
511 my($self, $perm, $obj_type) = @_;
513 my $perms = (ref($perm) eq 'ARRAY') ? $perm : [$perm];
516 for $perm (@$perms) {
518 select => {puopm => ['object_id']},
521 ppl => {field => 'id',fkey => 'perm'}
525 '+puopm' => {usr => $self->requestor->id, object_type => $obj_type},
526 '+ppl' => {code => $perm}
530 my $list = $self->json_query($query);
531 push(@ids, 0+$_->{object_id}) for @$list;
535 $trim{$_} = 1 for @ids;
536 return [ keys %trim ];
540 # -----------------------------------------------------------------------------
541 # checks the appropriate perm for the operation
542 # -----------------------------------------------------------------------------
544 my( $self, $ptype, $action, $org ) = @_;
545 $org ||= $self->requestor->ws_ou;
546 my $perm = $PERMS{$ptype}{$action};
548 return undef if $self->perm_checked($perm, $org);
549 return $self->event unless $self->allowed($perm, $org);
551 $self->log(I, "no perm provided for $ptype.$action");
558 # -----------------------------------------------------------------------------
559 # Logs update actions to the activity log
560 # -----------------------------------------------------------------------------
562 my( $self, $type, $action, $arg ) = @_;
563 my $str = "$type.$action";
564 $str .= _prop_string($arg);
572 my @props = $obj->properties;
575 my $prop = $obj->$_() || "";
576 $prop = substr($prop, 0, 128) . "..." if length $prop > 131;
583 sub __arg_to_string {
585 return "" unless defined $arg;
586 if( UNIVERSAL::isa($arg, "Fieldmapper") ) {
587 my $idf = $arg->Identity;
588 return (defined $arg->$idf) ? $arg->$idf : '<new object>';
590 return OpenSRF::Utils::JSON->perl2JSON($arg);
595 # -----------------------------------------------------------------------------
596 # This does the actual storage query.
598 # 'search' calls become search_where calls and $arg can be a search hash or
599 # an array-ref of storage search options.
601 # 'retrieve' expects an id
602 # 'update' expects an object
603 # 'create' expects an object
604 # 'delete' expects an object
606 # All methods return true on success and undef on failure. On failure,
607 # $e->event is set to the generated event.
608 # Note: this method assumes that updating a non-changed object and
609 # thereby receiving a 0 from storage, is a successful update.
611 # The method will therefore return true so the caller can just do
612 # $e->update_blah($x) or return $e->event;
613 # The true value returned from storage for all methods will be stored in
614 # $e->data, until the next method is called.
616 # not-found events are generated on retrieve and serach methods.
617 # action=search methods will return [] (==true) if no data is found. If the
618 # caller is interested in the not found event, they can do:
619 # return $e->event unless @$results;
620 # -----------------------------------------------------------------------------
622 my( $self, $action, $type, $arg, $options ) = @_;
626 if( $action eq 'retrieve' ) {
627 if(! defined($arg) ) {
628 $self->log(W,"$action $type called with no ID...");
629 $self->event(_mk_not_found($type, $arg));
631 } elsif( ref($arg) =~ /Fieldmapper/ ) {
632 $self->log(D,"$action $type called with an object.. attempting Identity retrieval..");
633 my $idf = $arg->Identity;
638 my @arg = ( ref($arg) eq 'ARRAY' ) ? @$arg : ($arg);
639 my $method = $self->app.".direct.$type.$action";
641 if( $action eq 'search' ) {
642 $method .= '.atomic';
644 } elsif( $action eq 'batch_retrieve' ) {
646 @arg = ( { id => $arg } );
647 $method =~ s/batch_retrieve/search/o;
648 $method .= '.atomic';
650 } elsif( $action eq 'retrieve_all' ) {
652 $method =~ s/retrieve_all/search/o;
655 my $fmobj = "Fieldmapper::$tt";
656 @arg = ( { $fmobj->Identity => { '!=' => undef } } );
657 $method .= '.atomic';
660 $method =~ s/search/id_list/o if $options->{idlist};
662 $method =~ s/\.atomic$//o if $self->substream($$options{substream} || 0);
663 $self->timeout($$options{timeout});
665 # remove any stale events
668 if( $action eq 'update' or $action eq 'delete' or $action eq 'create' ) {
669 if(!($self->{xact} or $always_xact)) {
670 $logger->error("Attempt to update DB while not in a transaction : $method");
671 throw OpenSRF::EX::ERROR ("Attempt to update DB while not in a transaction : $method");
673 $self->log_activity($type, $action, $arg);
676 if($$options{checkperm}) {
677 my $a = ($action eq 'search') ? 'retrieve' : $action;
678 my $e = $self->_checkperm($type, $a, $$options{permorg});
689 $obj = $self->request($method, @arg);
690 } catch Error with { $err = shift; };
694 $self->log(I, "request returned no data : $method");
696 if( $action eq 'retrieve' ) {
697 $self->event(_mk_not_found($type, $arg));
699 } elsif( $action eq 'update' or
700 $action eq 'delete' or $action eq 'create' ) {
701 my $evt = OpenILS::Event->new(
702 'DATABASE_UPDATE_FAILED', payload => $arg, debug => "$err" );
708 OpenILS::Event->new( 'DATABASE_QUERY_FAILED',
709 payload => $arg, debug => "$err" ));
716 if( $action eq 'create' and $obj == 0 ) {
717 my $evt = OpenILS::Event->new(
718 'DATABASE_UPDATE_FAILED', payload => $arg, debug => "$err" );
723 # If we havn't dealt with the error in a nice way, go ahead and throw it
726 OpenILS::Event->new( 'DATABASE_QUERY_FAILED',
727 payload => $arg, debug => "$err" ));
731 if( $action eq 'search' ) {
732 $self->log(I, "$type.$action : returned ".scalar(@$obj). " result(s)");
733 $self->event(_mk_not_found($type, $arg)) unless @$obj;
736 if( $action eq 'create' ) {
737 my $idf = $obj->Identity;
738 $self->log(I, "created a new $type object with Identity " . $obj->$idf);
739 $arg->$idf($obj->$idf);
742 $self->data($obj); # cache the data for convenience
744 return ($obj) ? $obj : 1;
749 my( $type, $arg ) = @_;
750 (my $t = $type) =~ s/\./_/og;
752 return OpenILS::Event->new("${t}_NOT_FOUND", payload => $arg);
757 # utility method for loading
761 $str =~ s/Fieldmapper:://o;
767 # -------------------------------------------------------------
768 # Load up the methods from the FM classes
769 # -------------------------------------------------------------
772 no warnings; # Here we potentially redefine subs via eval
773 my $map = $Fieldmapper::fieldmap;
774 for my $object (keys %$map) {
775 my $obj = __fm2meth($object, '_');
776 my $type = __fm2meth($object, '.');
777 foreach my $command (qw/ update retrieve search create delete batch_retrieve retrieve_all /) {
778 eval "sub ${command}_$obj {return shift()->runmethod('$command', '$type', \@_);}\n";
780 # TODO: performance test against concatenating a big string of all the subs and eval'ing only ONCE.
784 init(); # Add very many subs to this namespace
787 my( $self, $arg, $options ) = @_;
789 my @arg = ( ref($arg) eq 'ARRAY' ) ? @$arg : ($arg);
790 my $method = $self->app.'.json_query.atomic';
791 $method =~ s/\.atomic$//o if $self->substream($$options{substream} || 0);
793 $self->timeout($$options{timeout});
799 $obj = $self->request($method, @arg);
800 } catch Error with { $err = shift; };
804 OpenILS::Event->new( 'DATABASE_QUERY_FAILED',
805 payload => $arg, debug => "$err" ));
809 $self->log(I, "json_query : returned ".scalar(@$obj). " result(s)") if (ref($obj));