1 package OpenILS::WWW::EGCatLoader;
2 use strict; use warnings;
3 use Apache2::Const -compile => qw(OK DECLINED FORBIDDEN HTTP_INTERNAL_SERVER_ERROR REDIRECT HTTP_BAD_REQUEST);
5 use Time::HiRes qw/time sleep/;
6 use OpenSRF::Utils::Cache;
7 use OpenSRF::Utils::Logger qw/$logger/;
8 use OpenILS::Utils::CStoreEditor qw/:funcs/;
9 use OpenILS::Utils::Fieldmapper;
10 use OpenILS::Application::AppUtils;
11 use OpenSRF::MultiSession;
13 my $U = 'OpenILS::Application::AppUtils';
15 my $ro_object_subs; # cached subs
16 our %cache = ( # cached data
18 list => {en_us => {}},
19 search => {en_us => {}},
20 org_settings => {en_us => {}},
21 search_filter_groups => {en_us => {}},
22 aou_tree => {en_us => undef},
24 eg_cache_hash => undef
27 sub init_ro_object_cache {
29 my $e = $self->editor;
32 # reset org unit setting cache on each page load to avoid the
33 # requirement of reloading apache with each org-setting change
34 $cache{org_settings} = {};
37 # subs have been built. insert into the context then move along.
38 $ctx->{$_} = $ro_object_subs->{$_} for keys %$ro_object_subs;
42 # make all "field_safe" classes accesible by default in the template context
44 ($Fieldmapper::fieldmap->{$_}->{field_safe} || '') =~ /true/i
45 } keys %{ $Fieldmapper::fieldmap };
47 for my $class (@classes) {
49 my $hint = $Fieldmapper::fieldmap->{$class}->{hint};
50 next if $hint eq 'aou'; # handled separately
52 my $ident_field = $Fieldmapper::fieldmap->{$class}->{identity};
53 (my $eclass = $class) =~ s/Fieldmapper:://o;
56 my $list_key = "${hint}_list";
57 my $get_key = "get_$hint";
58 my $search_key = "search_$hint";
60 # Retrieve the full set of objects with class $hint
61 $ro_object_subs->{$list_key} = sub {
62 my $method = "retrieve_all_$eclass";
63 $cache{list}{$ctx->{locale}}{$hint} = $e->$method() unless $cache{list}{$ctx->{locale}}{$hint};
64 return $cache{list}{$ctx->{locale}}{$hint};
67 # locate object of class $hint with Ident field $id
68 $cache{map}{$hint} = {};
69 $ro_object_subs->{$get_key} = sub {
71 return $cache{map}{$ctx->{locale}}{$hint}{$id} if $cache{map}{$ctx->{locale}}{$hint}{$id};
72 ($cache{map}{$ctx->{locale}}{$hint}{$id}) = grep { $_->$ident_field eq $id } @{$ro_object_subs->{$list_key}->()};
73 return $cache{map}{$ctx->{locale}}{$hint}{$id};
76 # search for objects of class $hint where field=value
77 $cache{search}{$hint} = {};
78 $ro_object_subs->{$search_key} = sub {
79 my ($field, $val, $filterfield, $filterval) = @_;
80 my $method = "search_$eclass";
83 $val = [sort(@$val)] if ref $val eq 'ARRAY';
84 $cacheval = OpenSRF::Utils::JSON->perl2JSON($val);
85 #$self->apache->log->info("cacheval : $cacheval");
87 my $search_obj = {$field => $val};
89 $search_obj->{$filterfield} = $filterval;
90 $cacheval .= ':' . $filterfield . ':' . $filterval;
92 #$cache{search}{$ctx->{locale}}{$hint}{$field} = {} unless $cache{search}{$ctx->{locale}}{$hint}{$field};
93 $cache{search}{$ctx->{locale}}{$hint}{$field}{$cacheval} = $e->$method($search_obj)
94 unless $cache{search}{$ctx->{locale}}{$hint}{$field}{$cacheval};
95 return $cache{search}{$ctx->{locale}}{$hint}{$field}{$cacheval};
99 $ro_object_subs->{aou_tree} = sub {
101 # fetch the org unit tree
102 unless($cache{aou_tree}{$ctx->{locale}}) {
103 my $tree = $e->search_actor_org_unit([
104 { parent_ou => undef},
106 flesh_fields => {aou => ['children']},
107 order_by => {aou => 'name'}
111 # flesh the org unit type for each org unit
112 # and simultaneously set the id => aou map cache
115 my $ro_object_subs = shift;
117 $node->ou_type( $ro_object_subs->{get_aout}->($node->ou_type) );
118 $cache{map}{$ctx->{locale}}{aou}{$node->id} = $node;
119 flesh_aout($_, $ro_object_subs, $ctx) foreach @{$node->children};
121 flesh_aout($tree, $ro_object_subs, $ctx);
123 $cache{aou_tree}{$ctx->{locale}} = $tree;
126 return $cache{aou_tree}{$ctx->{locale}};
129 # Add a special handler for the tree-shaped org unit cache
130 $ro_object_subs->{get_aou} = sub {
132 return undef unless defined $org_id;
133 $ro_object_subs->{aou_tree}->(); # force the org tree to load
134 return $cache{map}{$ctx->{locale}}{aou}{$org_id};
137 # Returns a flat list of aou objects. often easier to manage than a tree.
138 $ro_object_subs->{aou_list} = sub {
139 $ro_object_subs->{aou_tree}->(); # force the org tree to load
140 return [ values %{$cache{map}{$ctx->{locale}}{aou}} ];
143 # returns the org unit object by shortname
144 $ro_object_subs->{get_aou_by_shortname} = sub {
145 my $sn = shift or return undef;
146 my $list = $ro_object_subs->{aou_list}->();
147 return (grep {$_->shortname eq $sn} @$list)[0];
150 $ro_object_subs->{aouct_tree} = sub {
152 # fetch the org unit tree
153 unless(exists $cache{aouct_tree}{$ctx->{locale}}) {
154 $cache{aouct_tree}{$ctx->{locale}} = undef;
156 my $tree_id = $e->search_actor_org_unit_custom_tree(
157 {purpose => 'opac', active => 't'},
162 my $node_tree = $e->search_actor_org_unit_custom_tree_node([
163 {parent_node => undef, tree => $tree_id},
165 flesh_fields => {aouctn => ['children', 'org_unit']},
166 order_by => {aouctn => 'sibling_order'}
170 # tree-ify the org units. note that since the orgs are fleshed
171 # upon retrieval, this org tree will not clobber ctx->{aou_tree}.
172 my @nodes = ($node_tree);
173 while (my $node = shift(@nodes)) {
174 my $aou = $node->org_unit;
176 for my $cnode (@{$node->children}) {
177 my $child_org = $cnode->org_unit;
178 $child_org->parent_ou($aou->id);
179 $child_org->ou_type( $ro_object_subs->{get_aout}->($child_org->ou_type) );
180 push(@{$aou->children}, $child_org);
181 push(@nodes, $cnode);
185 $cache{aouct_tree}{$ctx->{locale}} = $node_tree->org_unit;
189 return $cache{aouct_tree}{$ctx->{locale}};
192 # turns an ISO date into something TT can understand
193 $ro_object_subs->{parse_datetime} = sub {
196 # Probably an accidental entry like '0212' instead of '2012',
197 # but 1) the leading 0 may get stripped in cstore and
198 # 2) DateTime::Format::ISO8601 returns an error as years
199 # must be 2 or 4 digits
200 if ($date =~ m/^\d{3}-/) {
201 $logger->warn("Invalid date had a 3-digit year: $date");
203 } elsif ($date =~ m/^\d{1}-/) {
204 $logger->warn("Invalid date had a 1-digit year: $date");
205 $date = '000' . $date;
208 my $cleansed_date = cleanse_ISO8601($date);
210 $date = DateTime::Format::ISO8601->new->parse_datetime($cleansed_date);
212 "%0.2d:%0.2d:%0.2d %0.2d-%0.2d-%0.4d",
222 # retrieve and cache org unit setting values
223 $ro_object_subs->{get_org_setting} = sub {
224 my($org_id, $setting) = @_;
226 $cache{org_settings}{$ctx->{locale}}{$org_id}{$setting} =
227 $U->ou_ancestor_setting_value($org_id, $setting)
228 unless exists $cache{org_settings}{$ctx->{locale}}{$org_id}{$setting};
230 return $cache{org_settings}{$ctx->{locale}}{$org_id}{$setting};
233 $ctx->{$_} = $ro_object_subs->{$_} for keys %$ro_object_subs;
236 sub generic_redirect {
239 my $cookie = shift; # can be an array of cgi.cookie's
241 $self->apache->print(
242 $self->cgi->redirect(
244 $self->cgi->param('redirect_to') ||
245 $self->ctx->{referer} ||
246 $self->ctx->{home_page},
251 return Apache2::Const::REDIRECT;
255 sub get_records_and_facets {
256 my ($self, $rec_ids, $facet_key, $unapi_args) = @_;
259 $unapi_args->{site} ||= $self->ctx->{aou_tree}->()->shortname;
260 $unapi_args->{depth} ||= $self->ctx->{aou_tree}->()->ou_type->depth;
261 $unapi_args->{flesh_depth} ||= 5;
263 $unapi_cache ||= OpenSRF::Utils::Cache->new('global');
264 my $unapi_cache_key_suffix = join(
267 $unapi_args->{depth},
268 $unapi_args->{flesh_depth},
269 ($unapi_args->{pref_lib} || '')
273 my $outer_self = $self;
274 $self->timelog("get_records_and_facets(): about to call multisession");
275 my $ses = OpenSRF::MultiSession->new(
276 app => 'open-ils.cstore',
277 cap => 10, # XXX config
278 success_handler => sub {
279 my($self, $req) = @_;
280 my $data = $req->{response}->[0]->content;
282 $outer_self->timelog("get_records_and_facets(): got response content");
284 # Protect against requests for non-existent records
285 return unless $data->{'unapi.bre'};
287 my $xml = XML::LibXML->new->parse_string($data->{'unapi.bre'})->documentElement;
289 $outer_self->timelog("get_records_and_facets(): parsed xml");
290 # Protect against legacy invalid MARCXML that might not have a 901c
292 my $bre_id_nodes = $xml->find('*[@tag="901"]/*[@code="c"]');
294 $bre_id = $bre_id_nodes->[0]->textContent;
296 $logger->warn("Missing 901 subfield 'c' in " . $xml->toString());
298 $tmp_data{$bre_id} = {id => $bre_id, marc_xml => $xml};
301 # Let other backends grab our data now that we're done.
302 my $key = 'TPAC_unapi_cache_'.$bre_id.'_'.$unapi_cache_key_suffix;
303 my $cache_data = $unapi_cache->get_cache($key);
304 if ($$cache_data{running}) {
305 $unapi_cache->put_cache($key, { id => $bre_id, marc_xml => $data->{'unapi.bre'} }, 10);
310 $outer_self->timelog("get_records_and_facets(): end of success handler");
314 $self->timelog("get_records_and_facets(): about to call unapi.bre via json_query (rec_ids has " . scalar(@$rec_ids));
316 my @loop_recs = @$rec_ids;
319 while (my $bid = shift @loop_recs) {
321 sleep(0.1) if $rec_timeout{$bid};
323 my $unapi_cache_key = 'TPAC_unapi_cache_'.$bid.'_'.$unapi_cache_key_suffix;
324 my $unapi_data = $unapi_cache->get_cache($unapi_cache_key) || {};
326 if ($unapi_data->{running}) { #cache entry from ongoing, concurrent retrieval
327 if (!$rec_timeout{$bid}) {
328 $rec_timeout{$bid} = time() + 10;
331 if ( time() > $rec_timeout{$bid} ) { # we've waited too long. just do it
333 delete $rec_timeout{$bid};
334 } else { # we'll pause next time around to let this one try again
335 push(@loop_recs, $bid);
340 if ($unapi_data->{marc_xml}) { # we got data from the cache
341 $unapi_data->{marc_xml} = XML::LibXML->new->parse_string($unapi_data->{marc_xml})->documentElement;
342 $tmp_data{$unapi_data->{id}} = $unapi_data;
343 } else { # we're the first or we timed out. success_handler will populate the real value
344 $unapi_cache->put_cache($unapi_cache_key, { running => $$ }, 10);
346 'open-ils.cstore.json_query',
348 'unapi.bre', $bid, 'marcxml','record',
349 $unapi_args->{flesh},
351 $unapi_args->{depth},
352 'acn=>' . $unapi_args->{flesh_depth} . ',acp=>' . $unapi_args->{flesh_depth},
353 undef, undef, $unapi_args->{pref_lib}
361 $self->timelog("get_records_and_facets():almost ready to fetch facets");
362 # collect the facet data
363 my $search = OpenSRF::AppSession->create('open-ils.search');
364 my $facet_req = $search->request(
365 'open-ils.search.facet_cache.retrieve', $facet_key
368 # gather up the unapi recs
369 $ses->session_wait(1);
370 $self->timelog("get_records_and_facets():past session wait");
374 my $tmp_facets = $facet_req->gather(1);
375 $self->timelog("get_records_and_facets(): gathered facet data");
376 for my $cmf_id (keys %$tmp_facets) {
378 # sort highest to lowest match count
380 my $entries = $tmp_facets->{$cmf_id};
381 for my $ent (keys %$entries) {
382 push(@entries, {value => $ent, count => $$entries{$ent}});
385 # Sort facet entries by 1) count descending, 2) text ascending
387 $b->{count} <=> $a->{count} ||
388 $a->{value} cmp $b->{value}
391 $facets->{$cmf_id} = {
392 cmf => $self->ctx->{get_cmf}->($cmf_id),
396 $self->timelog("get_records_and_facets(): gathered/sorted facet data");
403 return ($facets, map { $tmp_data{$_} } @$rec_ids);
406 sub _resolve_org_id_or_shortname {
407 my ($self, $str) = @_;
410 # Match on shortname case insensitively, but only if there's exactly
411 # one match. We wouldn't want the system to arbitrarily interpret
412 # 'foo' as either the org unit with shortname 'FOO' or 'Foo' and fail
413 # to make it clear to the user which one was chosen and why.
414 my $res = $self->editor->search_actor_org_unit({
417 transform => 'evergreen.lowercase',
422 return $res->[0]->id if $res and @$res == 1;
425 # Note that we don't validate IDs; we only try a shortname lookup and then
426 # assume anything else must be an ID.
427 return int($str); # Wrapping in int() prevents 500 on unmatched string.
430 sub _get_search_lib {
432 my $ctx = $self->ctx;
434 # avoid duplicate lookups
435 return $ctx->{search_ou} if $ctx->{search_ou};
437 my $loc = $ctx->{copy_location_group_org};
440 # loc param takes precedence
441 # XXX ^-- over what exactly? We could use clarification here. To me it looks
442 # like locg takes precedence over loc which in turn takes precedence over
443 # request headers which take precedence over pref_lib (which can be
444 # specified a lot of different ways and eventually falls back to
445 # physical_loc) and it all finally defaults to top of the org tree.
446 # To say nothing of all the code that doesn't look to this function at all
447 # but rather accesses some subset of these inputs directly.
449 $loc = $self->cgi->param('loc');
452 if ($self->apache->headers_in->get('OILS-Search-Lib')) {
453 return $self->apache->headers_in->get('OILS-Search-Lib');
456 my $pref_lib = $self->_get_pref_lib();
457 return $pref_lib if $pref_lib;
459 return $ctx->{aou_tree}->()->id;
464 my $ctx = $self->ctx;
466 # plib param takes precedence
467 my $plib = $self->cgi->param('plib');
468 return $plib if $plib;
470 if ($self->apache->headers_in->get('OILS-Pref-Lib')) {
471 return $self->apache->headers_in->get('OILS-Pref-Lib');
475 # See if the user has a search library preference
476 my $lset = $self->editor->search_actor_user_setting({
477 usr => $ctx->{user}->id,
478 name => 'opac.default_search_location'
480 return OpenSRF::Utils::JSON->JSON2perl($lset->value) if $lset;
482 # Otherwise return the user's home library
483 my $ou = $ctx->{user}->home_ou;
484 return ref($ou) ? $ou->id : $ou;
487 if ($ctx->{physical_loc}) {
488 return $ctx->{physical_loc};
493 # This is defensively coded since we don't do much manual reading from the
494 # file system in this module.
495 sub load_eg_cache_hash {
498 # just a context helper
499 $self->ctx->{eg_cache_hash} = sub { return $cache{eg_cache_hash}; };
501 # Need to actually load the value? If already done, move on.
502 return if defined $cache{eg_cache_hash};
504 # In this way even if we fail, we won't slow things down by ever trying
505 # again within this Apache process' lifetime.
506 $cache{eg_cache_hash} = 0;
508 my $path = File::Spec->catfile(
509 $self->apache->document_root, "eg_cache_hash"
512 if (not open FH, "<$path") {
513 $self->apache->log->warn("error opening $path : $!");
517 my $rv = read FH, $buf, 64; # defensive
520 if (not defined $rv) { # error
521 $self->apache->log->warn("error reading $path : $!");
522 } elsif ($rv > 0) { # no error, something read
524 $cache{eg_cache_hash} = $buf;
529 # Extracts the copy location org unit and group from the
530 # "logc" param, which takes the form org_id:grp_id.
531 sub extract_copy_location_group_info {
533 my $ctx = $self->ctx;
534 if (my $clump = $self->cgi->param('locg')) {
535 my ($org, $grp) = split(/:/, $clump);
536 $ctx->{copy_location_group_org} =
537 $self->_resolve_org_id_or_shortname($org);
538 $ctx->{copy_location_group} = $grp if $grp;
542 sub load_copy_location_groups {
544 my $ctx = $self->ctx;
546 # User can access to the search location groups at the current
547 # search lib, the physical location lib, and the patron's home ou.
548 my @ctx_orgs = $ctx->{search_ou};
549 push(@ctx_orgs, $ctx->{physical_loc}) if $ctx->{physical_loc};
550 push(@ctx_orgs, $ctx->{user}->home_ou) if $ctx->{user};
552 my $grps = $self->editor->search_asset_copy_location_group([
559 transform => 'actor.org_unit_full_path',
560 result_field => 'id',
563 where => {id => \@ctx_orgs}
567 {order_by => {acplg => 'pos'}}
571 push(@{$buckets{$_->owner}}, $_) for @$grps;
572 $ctx->{copy_location_groups} = \%buckets;
575 sub set_file_download_headers {
577 my $filename = shift;
578 my $ctype = shift || "text/plain; encoding=utf8";
580 $self->apache->content_type($ctype);
582 $self->apache->headers_out->add(
583 "Content-Disposition",
584 "attachment;filename=$filename"
587 return Apache2::Const::OK;
590 sub apache_log_if_event {
591 my ($self, $event, $prefix_text, $success_ok, $level) = @_;
593 $prefix_text ||= "Evergreen returned event";
598 $prefix_text .= ": ";
600 my $code = $U->event_code($event);
601 if (defined $code and ($code or not $success_ok)) {
602 $self->apache->log->$level(
604 ($event->{textcode} || "") . " ($code)" .
605 ($event->{note} ? (": " . $event->{note}) : "")
613 sub load_search_filter_groups {
616 my $org_list = $U->get_org_ancestors($ctx_org, 1);
619 for my $org_id (@$org_list) {
622 if (! ($grps = $cache{search_filter_groups}{$org_id}) ) {
623 $grps = $self->editor->search_actor_search_filter_group([
630 order_by => {asfge => 'pos'}
633 $cache{search_filter_groups}{$org_id} = $grps;
636 # for the current context, if a descendant org has a group
637 # with a matching code replace the group from the parent.
638 $seen{$_->code} = $_ for @$grps;
641 return $self->ctx->{search_filter_groups} = \%seen;
645 sub check_for_temp_list_warning {
647 my $ctx = $self->ctx;
648 my $cgi = $self->cgi;
650 my $lib = $self->_get_search_lib;
651 my $warn = ($ctx->{get_org_setting}->($lib || 1, 'opac.patron.temporary_list_warn')) ? 1 : 0;
653 if ($warn && $ctx->{user}) {
654 $self->_load_user_with_prefs;
655 my $map = $ctx->{user_setting_map};
656 $warn = 0 if ($$map{'opac.temporary_list_no_warn'});
659 # Check for a cookie disabling the warning.
660 $warn = 0 if ($warn && $cgi->cookie('no_temp_list_warn'));
665 sub load_org_util_funcs {
667 my $ctx = $self->ctx;
669 # evaluates to true if test_ou is within the same depth-
670 # scoped tree as ctx_ou. both ou's are org unit objects.
671 $ctx->{org_within_scope} = sub {
672 my ($ctx_ou, $test_ou, $depth) = @_;
674 return 1 if $ctx_ou->id == $test_ou->id;
678 # find the top-most ctx-org ancestor at the provided depth
679 while ($depth < $ctx_ou->ou_type->depth
680 and $ctx_ou->id != $test_ou->id) {
681 $ctx_ou = $ctx->{get_aou}->($ctx_ou->parent_ou);
684 # the preceeding loop may have landed on our org
685 return 1 if $ctx_ou->id == $test_ou->id;
689 return 1 if defined $depth; # $depth == 0;
692 for my $child (@{$ctx_ou->children}) {
693 return 1 if $ctx->{org_within_scope}->($child, $test_ou);
699 # Returns true if the provided org unit is within the same
700 # org unit hiding depth-scoped tree as the physical location.
701 # Org unit hiding is based on the immutable physical_loc
702 # and is not meant to change as search/pref/etc libs change
703 $ctx->{org_within_hiding_scope} = sub {
705 my $ploc = $ctx->{physical_loc} or return 1;
707 my $depth = $ctx->{get_org_setting}->(
708 $ploc, 'opac.org_unit_hiding.depth');
710 return 1 unless $depth; # 0 or undef
712 return $ctx->{org_within_scope}->(
713 $ctx->{get_aou}->($ploc),
714 $ctx->{get_aou}->($org_id), $depth);
718 # Evaluates to true if the context org (defaults to get_library)
719 # is not within the hiding scope. Also evaluates to true if the
720 # user's pref_ou is set and it's out of hiding scope.
721 # Always evaluates to true when ctx.is_staff
722 $ctx->{org_hiding_disabled} = sub {
723 my $ctx_org = shift || $ctx->{search_ou};
725 return 1 if $ctx->{is_staff};
727 # beware locg values formatted as org:loc
728 $ctx_org =~ s/:.*//g;
730 return 1 if !$ctx->{org_within_hiding_scope}->($ctx_org);
732 return 1 if $ctx->{pref_ou} and $ctx->{pref_ou} != $ctx_org
733 and !$ctx->{org_within_hiding_scope}->($ctx->{pref_ou});