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,
25 authority_fields => {en_us => {}}
28 sub init_ro_object_cache {
30 my $e = $self->editor;
33 # reset org unit setting cache on each page load to avoid the
34 # requirement of reloading apache with each org-setting change
35 $cache{org_settings} = {};
38 # subs have been built. insert into the context then move along.
39 $ctx->{$_} = $ro_object_subs->{$_} for keys %$ro_object_subs;
43 # make all "field_safe" classes accesible by default in the template context
45 ($Fieldmapper::fieldmap->{$_}->{field_safe} || '') =~ /true/i
46 } keys %{ $Fieldmapper::fieldmap };
48 for my $class (@classes) {
50 my $hint = $Fieldmapper::fieldmap->{$class}->{hint};
51 next if $hint eq 'aou'; # handled separately
53 my $ident_field = $Fieldmapper::fieldmap->{$class}->{identity};
54 (my $eclass = $class) =~ s/Fieldmapper:://o;
57 my $list_key = "${hint}_list";
58 my $get_key = "get_$hint";
59 my $search_key = "search_$hint";
61 # Retrieve the full set of objects with class $hint
62 $ro_object_subs->{$list_key} = sub {
63 my $method = "retrieve_all_$eclass";
64 $cache{list}{$ctx->{locale}}{$hint} = $e->$method() unless $cache{list}{$ctx->{locale}}{$hint};
65 return $cache{list}{$ctx->{locale}}{$hint};
68 # locate object of class $hint with Ident field $id
69 $cache{map}{$hint} = {};
70 $ro_object_subs->{$get_key} = sub {
72 return $cache{map}{$ctx->{locale}}{$hint}{$id} if $cache{map}{$ctx->{locale}}{$hint}{$id};
73 ($cache{map}{$ctx->{locale}}{$hint}{$id}) = grep { $_->$ident_field eq $id } @{$ro_object_subs->{$list_key}->()};
74 return $cache{map}{$ctx->{locale}}{$hint}{$id};
77 # search for objects of class $hint where field=value
78 $cache{search}{$hint} = {};
79 $ro_object_subs->{$search_key} = sub {
80 my ($field, $val, $filterfield, $filterval) = @_;
81 my $method = "search_$eclass";
84 $val = [sort(@$val)] if ref $val eq 'ARRAY';
85 $cacheval = OpenSRF::Utils::JSON->perl2JSON($val);
86 #$self->apache->log->info("cacheval : $cacheval");
88 my $search_obj = {$field => $val};
90 $search_obj->{$filterfield} = $filterval;
91 $cacheval .= ':' . $filterfield . ':' . $filterval;
93 #$cache{search}{$ctx->{locale}}{$hint}{$field} = {} unless $cache{search}{$ctx->{locale}}{$hint}{$field};
94 $cache{search}{$ctx->{locale}}{$hint}{$field}{$cacheval} = $e->$method($search_obj)
95 unless $cache{search}{$ctx->{locale}}{$hint}{$field}{$cacheval};
96 return $cache{search}{$ctx->{locale}}{$hint}{$field}{$cacheval};
100 $ro_object_subs->{aou_tree} = sub {
102 # fetch the org unit tree
103 unless($cache{aou_tree}{$ctx->{locale}}) {
104 my $tree = $e->search_actor_org_unit([
105 { parent_ou => undef},
107 flesh_fields => {aou => ['children']},
108 order_by => {aou => 'name'}
112 # flesh the org unit type for each org unit
113 # and simultaneously set the id => aou map cache
116 my $ro_object_subs = shift;
118 $node->ou_type( $ro_object_subs->{get_aout}->($node->ou_type) );
119 $cache{map}{$ctx->{locale}}{aou}{$node->id} = $node;
120 flesh_aout($_, $ro_object_subs, $ctx) foreach @{$node->children};
122 flesh_aout($tree, $ro_object_subs, $ctx);
124 $cache{aou_tree}{$ctx->{locale}} = $tree;
127 return $cache{aou_tree}{$ctx->{locale}};
130 # Add a special handler for the tree-shaped org unit cache
131 $ro_object_subs->{get_aou} = sub {
133 return undef unless defined $org_id;
134 $ro_object_subs->{aou_tree}->(); # force the org tree to load
135 return $cache{map}{$ctx->{locale}}{aou}{$org_id};
138 # Returns a flat list of aou objects. often easier to manage than a tree.
139 $ro_object_subs->{aou_list} = sub {
140 $ro_object_subs->{aou_tree}->(); # force the org tree to load
141 return [ values %{$cache{map}{$ctx->{locale}}{aou}} ];
144 # returns the org unit object by shortname
145 $ro_object_subs->{get_aou_by_shortname} = sub {
146 my $sn = shift or return undef;
147 my $list = $ro_object_subs->{aou_list}->();
148 return (grep {$_->shortname eq $sn} @$list)[0];
151 $ro_object_subs->{aouct_tree} = sub {
153 # fetch the org unit tree
154 unless(exists $cache{aouct_tree}{$ctx->{locale}}) {
155 $cache{aouct_tree}{$ctx->{locale}} = undef;
157 my $tree_id = $e->search_actor_org_unit_custom_tree(
158 {purpose => 'opac', active => 't'},
163 my $node_tree = $e->search_actor_org_unit_custom_tree_node([
164 {parent_node => undef, tree => $tree_id},
166 flesh_fields => {aouctn => ['children', 'org_unit']},
167 order_by => {aouctn => 'sibling_order'}
171 # tree-ify the org units. note that since the orgs are fleshed
172 # upon retrieval, this org tree will not clobber ctx->{aou_tree}.
173 my @nodes = ($node_tree);
174 while (my $node = shift(@nodes)) {
175 my $aou = $node->org_unit;
177 for my $cnode (@{$node->children}) {
178 my $child_org = $cnode->org_unit;
179 $child_org->parent_ou($aou->id);
180 $child_org->ou_type( $ro_object_subs->{get_aout}->($child_org->ou_type) );
181 push(@{$aou->children}, $child_org);
182 push(@nodes, $cnode);
186 $cache{aouct_tree}{$ctx->{locale}} = $node_tree->org_unit;
190 return $cache{aouct_tree}{$ctx->{locale}};
193 # turns an ISO date into something TT can understand
194 $ro_object_subs->{parse_datetime} = sub {
197 # Probably an accidental entry like '0212' instead of '2012',
198 # but 1) the leading 0 may get stripped in cstore and
199 # 2) DateTime::Format::ISO8601 returns an error as years
200 # must be 2 or 4 digits
201 if ($date =~ m/^\d{3}-/) {
202 $logger->warn("Invalid date had a 3-digit year: $date");
204 } elsif ($date =~ m/^\d{1}-/) {
205 $logger->warn("Invalid date had a 1-digit year: $date");
206 $date = '000' . $date;
209 my $cleansed_date = cleanse_ISO8601($date);
211 $date = DateTime::Format::ISO8601->new->parse_datetime($cleansed_date);
213 "%0.2d:%0.2d:%0.2d %0.2d-%0.2d-%0.4d",
223 # retrieve and cache org unit setting values
224 $ro_object_subs->{get_org_setting} = sub {
225 my($org_id, $setting) = @_;
227 $cache{org_settings}{$ctx->{locale}}{$org_id}{$setting} =
228 $U->ou_ancestor_setting_value($org_id, $setting)
229 unless exists $cache{org_settings}{$ctx->{locale}}{$org_id}{$setting};
231 return $cache{org_settings}{$ctx->{locale}}{$org_id}{$setting};
234 # retrieve and cache acsaf values
235 $ro_object_subs->{get_authority_fields} = sub {
236 my ($control_set) = @_;
238 if (not exists $cache{authority_fields}{$ctx->{locale}}{$control_set}) {
239 my $acs = $e->search_authority_control_set_authority_field(
240 {control_set => $control_set}
242 $cache{authority_fields}{$ctx->{locale}}{$control_set} =
243 +{ map { $_->id => $_ } @$acs };
246 return $cache{authority_fields}{$ctx->{locale}}{$control_set};
249 $ctx->{$_} = $ro_object_subs->{$_} for keys %$ro_object_subs;
252 sub generic_redirect {
255 my $cookie = shift; # can be an array of cgi.cookie's
257 $self->apache->print(
258 $self->cgi->redirect(
260 $self->cgi->param('redirect_to') ||
261 $self->ctx->{referer} ||
262 $self->ctx->{home_page},
267 return Apache2::Const::REDIRECT;
271 sub get_records_and_facets {
272 my ($self, $rec_ids, $facet_key, $unapi_args) = @_;
275 $unapi_args->{site} ||= $self->ctx->{aou_tree}->()->shortname;
276 $unapi_args->{depth} ||= $self->ctx->{aou_tree}->()->ou_type->depth;
277 $unapi_args->{flesh_depth} ||= 5;
279 $unapi_cache ||= OpenSRF::Utils::Cache->new('global');
280 my $unapi_cache_key_suffix = join(
283 $unapi_args->{depth},
284 $unapi_args->{flesh_depth},
285 ($unapi_args->{pref_lib} || '')
289 my $outer_self = $self;
290 $self->timelog("get_records_and_facets(): about to call multisession");
291 my $ses = OpenSRF::MultiSession->new(
292 app => 'open-ils.cstore',
293 cap => 10, # XXX config
294 success_handler => sub {
295 my($self, $req) = @_;
296 my $data = $req->{response}->[0]->content;
298 $outer_self->timelog("get_records_and_facets(): got response content");
300 # Protect against requests for non-existent records
301 return unless $data->{'unapi.bre'};
303 my $xml = XML::LibXML->new->parse_string($data->{'unapi.bre'})->documentElement;
305 $outer_self->timelog("get_records_and_facets(): parsed xml");
306 # Protect against legacy invalid MARCXML that might not have a 901c
308 my $bre_id_nodes = $xml->find('*[@tag="901"]/*[@code="c"]');
310 $bre_id = $bre_id_nodes->[0]->textContent;
312 $logger->warn("Missing 901 subfield 'c' in " . $xml->toString());
314 $tmp_data{$bre_id} = {id => $bre_id, marc_xml => $xml};
317 # Let other backends grab our data now that we're done.
318 my $key = 'TPAC_unapi_cache_'.$bre_id.'_'.$unapi_cache_key_suffix;
319 my $cache_data = $unapi_cache->get_cache($key);
320 if ($$cache_data{running}) {
321 $unapi_cache->put_cache($key, { id => $bre_id, marc_xml => $data->{'unapi.bre'} }, 10);
326 $outer_self->timelog("get_records_and_facets(): end of success handler");
330 $self->timelog("get_records_and_facets(): about to call unapi.bre via json_query (rec_ids has " . scalar(@$rec_ids));
332 my @loop_recs = @$rec_ids;
335 while (my $bid = shift @loop_recs) {
337 sleep(0.1) if $rec_timeout{$bid};
339 my $unapi_cache_key = 'TPAC_unapi_cache_'.$bid.'_'.$unapi_cache_key_suffix;
340 my $unapi_data = $unapi_cache->get_cache($unapi_cache_key) || {};
342 if ($unapi_data->{running}) { #cache entry from ongoing, concurrent retrieval
343 if (!$rec_timeout{$bid}) {
344 $rec_timeout{$bid} = time() + 10;
347 if ( time() > $rec_timeout{$bid} ) { # we've waited too long. just do it
349 delete $rec_timeout{$bid};
350 } else { # we'll pause next time around to let this one try again
351 push(@loop_recs, $bid);
356 if ($unapi_data->{marc_xml}) { # we got data from the cache
357 $unapi_data->{marc_xml} = XML::LibXML->new->parse_string($unapi_data->{marc_xml})->documentElement;
358 $tmp_data{$unapi_data->{id}} = $unapi_data;
359 } else { # we're the first or we timed out. success_handler will populate the real value
360 $unapi_cache->put_cache($unapi_cache_key, { running => $$ }, 10);
362 'open-ils.cstore.json_query',
364 'unapi.bre', $bid, 'marcxml','record',
365 $unapi_args->{flesh},
367 $unapi_args->{depth},
368 'acn=>' . $unapi_args->{flesh_depth} . ',acp=>' . $unapi_args->{flesh_depth},
369 undef, undef, $unapi_args->{pref_lib}
377 $self->timelog("get_records_and_facets():almost ready to fetch facets");
378 # collect the facet data
379 my $search = OpenSRF::AppSession->create('open-ils.search');
380 my $facet_req = $search->request(
381 'open-ils.search.facet_cache.retrieve', $facet_key
384 # gather up the unapi recs
385 $ses->session_wait(1);
386 $self->timelog("get_records_and_facets():past session wait");
390 my $tmp_facets = $facet_req->gather(1);
391 $self->timelog("get_records_and_facets(): gathered facet data");
392 for my $cmf_id (keys %$tmp_facets) {
394 # sort highest to lowest match count
396 my $entries = $tmp_facets->{$cmf_id};
397 for my $ent (keys %$entries) {
398 push(@entries, {value => $ent, count => $$entries{$ent}});
401 # Sort facet entries by 1) count descending, 2) text ascending
403 $b->{count} <=> $a->{count} ||
404 $a->{value} cmp $b->{value}
407 $facets->{$cmf_id} = {
408 cmf => $self->ctx->{get_cmf}->($cmf_id),
412 $self->timelog("get_records_and_facets(): gathered/sorted facet data");
419 return ($facets, map { $tmp_data{$_} } @$rec_ids);
422 sub _resolve_org_id_or_shortname {
423 my ($self, $str) = @_;
426 # Match on shortname case insensitively, but only if there's exactly
427 # one match. We wouldn't want the system to arbitrarily interpret
428 # 'foo' as either the org unit with shortname 'FOO' or 'Foo' and fail
429 # to make it clear to the user which one was chosen and why.
430 my $res = $self->editor->search_actor_org_unit({
433 transform => 'evergreen.lowercase',
438 return $res->[0]->id if $res and @$res == 1;
441 # Note that we don't validate IDs; we only try a shortname lookup and then
442 # assume anything else must be an ID.
443 return int($str); # Wrapping in int() prevents 500 on unmatched string.
446 sub _get_search_lib {
448 my $ctx = $self->ctx;
450 # avoid duplicate lookups
451 return $ctx->{search_ou} if $ctx->{search_ou};
453 my $loc = $ctx->{copy_location_group_org};
456 # loc param takes precedence
457 # XXX ^-- over what exactly? We could use clarification here. To me it looks
458 # like locg takes precedence over loc which in turn takes precedence over
459 # request headers which take precedence over pref_lib (which can be
460 # specified a lot of different ways and eventually falls back to
461 # physical_loc) and it all finally defaults to top of the org tree.
462 # To say nothing of all the code that doesn't look to this function at all
463 # but rather accesses some subset of these inputs directly.
465 $loc = $self->cgi->param('loc');
468 if ($self->apache->headers_in->get('OILS-Search-Lib')) {
469 return $self->apache->headers_in->get('OILS-Search-Lib');
472 my $pref_lib = $self->_get_pref_lib();
473 return $pref_lib if $pref_lib;
475 return $ctx->{aou_tree}->()->id;
480 my $ctx = $self->ctx;
482 # plib param takes precedence
483 my $plib = $self->cgi->param('plib');
484 return $plib if $plib;
486 if ($self->apache->headers_in->get('OILS-Pref-Lib')) {
487 return $self->apache->headers_in->get('OILS-Pref-Lib');
491 # See if the user has a search library preference
492 my $lset = $self->editor->search_actor_user_setting({
493 usr => $ctx->{user}->id,
494 name => 'opac.default_search_location'
496 return OpenSRF::Utils::JSON->JSON2perl($lset->value) if $lset;
498 # Otherwise return the user's home library
499 my $ou = $ctx->{user}->home_ou;
500 return ref($ou) ? $ou->id : $ou;
503 if ($ctx->{physical_loc}) {
504 return $ctx->{physical_loc};
509 # This is defensively coded since we don't do much manual reading from the
510 # file system in this module.
511 sub load_eg_cache_hash {
514 # just a context helper
515 $self->ctx->{eg_cache_hash} = sub { return $cache{eg_cache_hash}; };
517 # Need to actually load the value? If already done, move on.
518 return if defined $cache{eg_cache_hash};
520 # In this way even if we fail, we won't slow things down by ever trying
521 # again within this Apache process' lifetime.
522 $cache{eg_cache_hash} = 0;
524 my $path = File::Spec->catfile(
525 $self->apache->document_root, "eg_cache_hash"
528 if (not open FH, "<$path") {
529 $self->apache->log->warn("error opening $path : $!");
533 my $rv = read FH, $buf, 64; # defensive
536 if (not defined $rv) { # error
537 $self->apache->log->warn("error reading $path : $!");
538 } elsif ($rv > 0) { # no error, something read
540 $cache{eg_cache_hash} = $buf;
545 # Extracts the copy location org unit and group from the
546 # "logc" param, which takes the form org_id:grp_id.
547 sub extract_copy_location_group_info {
549 my $ctx = $self->ctx;
550 if (my $clump = $self->cgi->param('locg')) {
551 my ($org, $grp) = split(/:/, $clump);
552 $ctx->{copy_location_group_org} =
553 $self->_resolve_org_id_or_shortname($org);
554 $ctx->{copy_location_group} = $grp if $grp;
558 sub load_copy_location_groups {
560 my $ctx = $self->ctx;
562 # User can access to the search location groups at the current
563 # search lib, the physical location lib, and the patron's home ou.
564 my @ctx_orgs = $ctx->{search_ou};
565 push(@ctx_orgs, $ctx->{physical_loc}) if $ctx->{physical_loc};
566 push(@ctx_orgs, $ctx->{user}->home_ou) if $ctx->{user};
568 my $grps = $self->editor->search_asset_copy_location_group([
575 transform => 'actor.org_unit_full_path',
576 result_field => 'id',
579 where => {id => \@ctx_orgs}
583 {order_by => {acplg => 'pos'}}
587 push(@{$buckets{$_->owner}}, $_) for @$grps;
588 $ctx->{copy_location_groups} = \%buckets;
591 sub set_file_download_headers {
593 my $filename = shift;
594 my $ctype = shift || "text/plain; encoding=utf8";
596 $self->apache->content_type($ctype);
598 $self->apache->headers_out->add(
599 "Content-Disposition",
600 "attachment;filename=$filename"
603 return Apache2::Const::OK;
606 sub apache_log_if_event {
607 my ($self, $event, $prefix_text, $success_ok, $level) = @_;
609 $prefix_text ||= "Evergreen returned event";
614 $prefix_text .= ": ";
616 my $code = $U->event_code($event);
617 if (defined $code and ($code or not $success_ok)) {
618 $self->apache->log->$level(
620 ($event->{textcode} || "") . " ($code)" .
621 ($event->{note} ? (": " . $event->{note}) : "")
629 sub load_search_filter_groups {
632 my $org_list = $U->get_org_ancestors($ctx_org, 1);
635 for my $org_id (@$org_list) {
638 if (! ($grps = $cache{search_filter_groups}{$org_id}) ) {
639 $grps = $self->editor->search_actor_search_filter_group([
646 order_by => {asfge => 'pos'}
649 $cache{search_filter_groups}{$org_id} = $grps;
652 # for the current context, if a descendant org has a group
653 # with a matching code replace the group from the parent.
654 $seen{$_->code} = $_ for @$grps;
657 return $self->ctx->{search_filter_groups} = \%seen;
661 sub check_for_temp_list_warning {
663 my $ctx = $self->ctx;
664 my $cgi = $self->cgi;
666 my $lib = $self->_get_search_lib;
667 my $warn = ($ctx->{get_org_setting}->($lib || 1, 'opac.patron.temporary_list_warn')) ? 1 : 0;
669 if ($warn && $ctx->{user}) {
670 $self->_load_user_with_prefs;
671 my $map = $ctx->{user_setting_map};
672 $warn = 0 if ($$map{'opac.temporary_list_no_warn'});
675 # Check for a cookie disabling the warning.
676 $warn = 0 if ($warn && $cgi->cookie('no_temp_list_warn'));
681 sub load_org_util_funcs {
683 my $ctx = $self->ctx;
685 # evaluates to true if test_ou is within the same depth-
686 # scoped tree as ctx_ou. both ou's are org unit objects.
687 $ctx->{org_within_scope} = sub {
688 my ($ctx_ou, $test_ou, $depth) = @_;
690 return 1 if $ctx_ou->id == $test_ou->id;
694 # find the top-most ctx-org ancestor at the provided depth
695 while ($depth < $ctx_ou->ou_type->depth
696 and $ctx_ou->id != $test_ou->id) {
697 $ctx_ou = $ctx->{get_aou}->($ctx_ou->parent_ou);
700 # the preceeding loop may have landed on our org
701 return 1 if $ctx_ou->id == $test_ou->id;
705 return 1 if defined $depth; # $depth == 0;
708 for my $child (@{$ctx_ou->children}) {
709 return 1 if $ctx->{org_within_scope}->($child, $test_ou);
715 # Returns true if the provided org unit is within the same
716 # org unit hiding depth-scoped tree as the physical location.
717 # Org unit hiding is based on the immutable physical_loc
718 # and is not meant to change as search/pref/etc libs change
719 $ctx->{org_within_hiding_scope} = sub {
721 my $ploc = $ctx->{physical_loc} or return 1;
723 my $depth = $ctx->{get_org_setting}->(
724 $ploc, 'opac.org_unit_hiding.depth');
726 return 1 unless $depth; # 0 or undef
728 return $ctx->{org_within_scope}->(
729 $ctx->{get_aou}->($ploc),
730 $ctx->{get_aou}->($org_id), $depth);
734 # Evaluates to true if the context org (defaults to get_library)
735 # is not within the hiding scope. Also evaluates to true if the
736 # user's pref_ou is set and it's out of hiding scope.
737 # Always evaluates to true when ctx.is_staff
738 $ctx->{org_hiding_disabled} = sub {
739 my $ctx_org = shift || $ctx->{search_ou};
741 return 1 if $ctx->{is_staff};
743 # beware locg values formatted as org:loc
744 $ctx_org =~ s/:.*//g;
746 return 1 if !$ctx->{org_within_hiding_scope}->($ctx_org);
748 return 1 if $ctx->{pref_ou} and $ctx->{pref_ou} != $ctx_org
749 and !$ctx->{org_within_hiding_scope}->($ctx->{pref_ou});