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 OpenSRF::Utils::Logger qw/$logger/;
6 use OpenILS::Utils::CStoreEditor qw/:funcs/;
7 use OpenILS::Utils::Fieldmapper;
8 use OpenILS::Application::AppUtils;
9 use OpenSRF::MultiSession;
10 my $U = 'OpenILS::Application::AppUtils';
12 my $ro_object_subs; # cached subs
13 our %cache = ( # cached data
15 list => {en_us => {}},
16 search => {en_us => {}},
17 org_settings => {en_us => {}},
18 search_filter_groups => {en_us => {}},
19 aou_tree => {en_us => undef},
21 eg_cache_hash => undef
24 sub init_ro_object_cache {
26 my $e = $self->editor;
29 # reset org unit setting cache on each page load to avoid the
30 # requirement of reloading apache with each org-setting change
31 $cache{org_settings} = {};
34 # subs have been built. insert into the context then move along.
35 $ctx->{$_} = $ro_object_subs->{$_} for keys %$ro_object_subs;
39 # make all "field_safe" classes accesible by default in the template context
41 ($Fieldmapper::fieldmap->{$_}->{field_safe} || '') =~ /true/i
42 } keys %{ $Fieldmapper::fieldmap };
44 for my $class (@classes) {
46 my $hint = $Fieldmapper::fieldmap->{$class}->{hint};
47 next if $hint eq 'aou'; # handled separately
49 my $ident_field = $Fieldmapper::fieldmap->{$class}->{identity};
50 (my $eclass = $class) =~ s/Fieldmapper:://o;
53 my $list_key = "${hint}_list";
54 my $get_key = "get_$hint";
55 my $search_key = "search_$hint";
57 # Retrieve the full set of objects with class $hint
58 $ro_object_subs->{$list_key} = sub {
59 my $method = "retrieve_all_$eclass";
60 $cache{list}{$ctx->{locale}}{$hint} = $e->$method() unless $cache{list}{$ctx->{locale}}{$hint};
61 return $cache{list}{$ctx->{locale}}{$hint};
64 # locate object of class $hint with Ident field $id
65 $cache{map}{$hint} = {};
66 $ro_object_subs->{$get_key} = sub {
68 return $cache{map}{$ctx->{locale}}{$hint}{$id} if $cache{map}{$ctx->{locale}}{$hint}{$id};
69 ($cache{map}{$ctx->{locale}}{$hint}{$id}) = grep { $_->$ident_field eq $id } @{$ro_object_subs->{$list_key}->()};
70 return $cache{map}{$ctx->{locale}}{$hint}{$id};
73 # search for objects of class $hint where field=value
74 $cache{search}{$hint} = {};
75 $ro_object_subs->{$search_key} = sub {
76 my ($field, $val, $filterfield, $filterval) = @_;
77 my $method = "search_$eclass";
80 $val = [sort(@$val)] if ref $val eq 'ARRAY';
81 $cacheval = OpenSRF::Utils::JSON->perl2JSON($val);
82 #$self->apache->log->info("cacheval : $cacheval");
84 my $search_obj = {$field => $val};
86 $search_obj->{$filterfield} = $filterval;
87 $cacheval .= ':' . $filterfield . ':' . $filterval;
89 #$cache{search}{$ctx->{locale}}{$hint}{$field} = {} unless $cache{search}{$ctx->{locale}}{$hint}{$field};
90 $cache{search}{$ctx->{locale}}{$hint}{$field}{$cacheval} = $e->$method($search_obj)
91 unless $cache{search}{$ctx->{locale}}{$hint}{$field}{$cacheval};
92 return $cache{search}{$ctx->{locale}}{$hint}{$field}{$cacheval};
96 $ro_object_subs->{aou_tree} = sub {
98 # fetch the org unit tree
99 unless($cache{aou_tree}{$ctx->{locale}}) {
100 my $tree = $e->search_actor_org_unit([
101 { parent_ou => undef},
103 flesh_fields => {aou => ['children']},
104 order_by => {aou => 'name'}
108 # flesh the org unit type for each org unit
109 # and simultaneously set the id => aou map cache
112 my $ro_object_subs = shift;
114 $node->ou_type( $ro_object_subs->{get_aout}->($node->ou_type) );
115 $cache{map}{$ctx->{locale}}{aou}{$node->id} = $node;
116 flesh_aout($_, $ro_object_subs, $ctx) foreach @{$node->children};
118 flesh_aout($tree, $ro_object_subs, $ctx);
120 $cache{aou_tree}{$ctx->{locale}} = $tree;
123 return $cache{aou_tree}{$ctx->{locale}};
126 # Add a special handler for the tree-shaped org unit cache
127 $ro_object_subs->{get_aou} = sub {
129 return undef unless defined $org_id;
130 $ro_object_subs->{aou_tree}->(); # force the org tree to load
131 return $cache{map}{$ctx->{locale}}{aou}{$org_id};
134 # Returns a flat list of aou objects. often easier to manage than a tree.
135 $ro_object_subs->{aou_list} = sub {
136 $ro_object_subs->{aou_tree}->(); # force the org tree to load
137 return [ values %{$cache{map}{$ctx->{locale}}{aou}} ];
140 # returns the org unit object by shortname
141 $ro_object_subs->{get_aou_by_shortname} = sub {
142 my $sn = shift or return undef;
143 my $list = $ro_object_subs->{aou_list}->();
144 return (grep {$_->shortname eq $sn} @$list)[0];
147 $ro_object_subs->{aouct_tree} = sub {
149 # fetch the org unit tree
150 unless(exists $cache{aouct_tree}{$ctx->{locale}}) {
151 $cache{aouct_tree}{$ctx->{locale}} = undef;
153 my $tree_id = $e->search_actor_org_unit_custom_tree(
154 {purpose => 'opac', active => 't'},
159 my $node_tree = $e->search_actor_org_unit_custom_tree_node([
160 {parent_node => undef, tree => $tree_id},
162 flesh_fields => {aouctn => ['children', 'org_unit']},
163 order_by => {aouctn => 'sibling_order'}
167 # tree-ify the org units. note that since the orgs are fleshed
168 # upon retrieval, this org tree will not clobber ctx->{aou_tree}.
169 my @nodes = ($node_tree);
170 while (my $node = shift(@nodes)) {
171 my $aou = $node->org_unit;
173 for my $cnode (@{$node->children}) {
174 my $child_org = $cnode->org_unit;
175 $child_org->parent_ou($aou->id);
176 $child_org->ou_type( $ro_object_subs->{get_aout}->($child_org->ou_type) );
177 push(@{$aou->children}, $child_org);
178 push(@nodes, $cnode);
182 $cache{aouct_tree}{$ctx->{locale}} = $node_tree->org_unit;
186 return $cache{aouct_tree}{$ctx->{locale}};
189 # turns an ISO date into something TT can understand
190 $ro_object_subs->{parse_datetime} = sub {
193 # Probably an accidental entry like '0212' instead of '2012',
194 # but 1) the leading 0 may get stripped in cstore and
195 # 2) DateTime::Format::ISO8601 returns an error as years
196 # must be 2 or 4 digits
197 if ($date =~ m/^\d{3}-/) {
198 $logger->warn("Invalid date had a 3-digit year: $date");
200 } elsif ($date =~ m/^\d{1}-/) {
201 $logger->warn("Invalid date had a 1-digit year: $date");
202 $date = '000' . $date;
205 my $cleansed_date = cleanse_ISO8601($date);
207 $date = DateTime::Format::ISO8601->new->parse_datetime($cleansed_date);
209 "%0.2d:%0.2d:%0.2d %0.2d-%0.2d-%0.4d",
219 # retrieve and cache org unit setting values
220 $ro_object_subs->{get_org_setting} = sub {
221 my($org_id, $setting) = @_;
223 $cache{org_settings}{$ctx->{locale}}{$org_id}{$setting} =
224 $U->ou_ancestor_setting_value($org_id, $setting)
225 unless exists $cache{org_settings}{$ctx->{locale}}{$org_id}{$setting};
227 return $cache{org_settings}{$ctx->{locale}}{$org_id}{$setting};
230 $ctx->{$_} = $ro_object_subs->{$_} for keys %$ro_object_subs;
233 sub generic_redirect {
236 my $cookie = shift; # can be an array of cgi.cookie's
238 $self->apache->print(
239 $self->cgi->redirect(
241 $self->cgi->param('redirect_to') ||
242 $self->ctx->{referer} ||
243 $self->ctx->{home_page},
248 return Apache2::Const::REDIRECT;
251 sub get_records_and_facets {
252 my ($self, $rec_ids, $facet_key, $unapi_args) = @_;
255 $unapi_args->{site} ||= $self->ctx->{aou_tree}->()->shortname;
256 $unapi_args->{depth} ||= $self->ctx->{aou_tree}->()->ou_type->depth;
257 $unapi_args->{flesh_depth} ||= 5;
260 my $outer_self = $self;
261 $self->timelog("get_records_and_facets(): about to call multisession");
262 my $ses = OpenSRF::MultiSession->new(
263 app => 'open-ils.cstore',
264 cap => 10, # XXX config
265 success_handler => sub {
266 my($self, $req) = @_;
267 my $data = $req->{response}->[0]->content;
269 $outer_self->timelog("get_records_and_facets(): got response content");
271 # Protect against requests for non-existent records
272 return unless $data->{'unapi.bre'};
274 my $xml = XML::LibXML->new->parse_string($data->{'unapi.bre'})->documentElement;
276 $outer_self->timelog("get_records_and_facets(): parsed xml");
277 # Protect against legacy invalid MARCXML that might not have a 901c
279 my $bre_id_nodes = $xml->find('*[@tag="901"]/*[@code="c"]');
281 $bre_id = $bre_id_nodes->[0]->textContent;
283 $logger->warn("Missing 901 subfield 'c' in " . $xml->toString());
285 push(@data, {id => $bre_id, marc_xml => $xml});
286 $outer_self->timelog("get_records_and_facets(): end of success handler");
290 $self->timelog("get_records_and_facets(): about to call unapi.bre via json_query (rec_ids has " . scalar(@$rec_ids));
293 'open-ils.cstore.json_query',
295 'unapi.bre', $_, 'marcxml','record',
296 $unapi_args->{flesh},
298 $unapi_args->{depth},
299 'acn=>' . $unapi_args->{flesh_depth} . ',acp=>' . $unapi_args->{flesh_depth},
300 undef, undef, $unapi_args->{pref_lib}
305 $self->timelog("get_records_and_facets():almost ready to fetch facets");
306 # collect the facet data
307 my $search = OpenSRF::AppSession->create('open-ils.search');
308 my $facet_req = $search->request(
309 'open-ils.search.facet_cache.retrieve', $facet_key
312 # gather up the unapi recs
313 $ses->session_wait(1);
314 $self->timelog("get_records_and_facets():past session wait");
318 my $tmp_facets = $facet_req->gather(1);
319 $self->timelog("get_records_and_facets(): gathered facet data");
320 for my $cmf_id (keys %$tmp_facets) {
322 # sort highest to lowest match count
324 my $entries = $tmp_facets->{$cmf_id};
325 for my $ent (keys %$entries) {
326 push(@entries, {value => $ent, count => $$entries{$ent}});
329 # Sort facet entries by 1) count descending, 2) text ascending
331 $b->{count} <=> $a->{count} ||
332 $a->{value} cmp $b->{value}
335 $facets->{$cmf_id} = {
336 cmf => $self->ctx->{get_cmf}->($cmf_id),
340 $self->timelog("get_records_and_facets(): gathered/sorted facet data");
347 return ($facets, @data);
350 sub _resolve_org_id_or_shortname {
351 my ($self, $str) = @_;
354 # Match on shortname case insensitively, but only if there's exactly
355 # one match. We wouldn't want the system to arbitrarily interpret
356 # 'foo' as either the org unit with shortname 'FOO' or 'Foo' and fail
357 # to make it clear to the user which one was chosen and why.
358 my $res = $self->editor->search_actor_org_unit({
361 transform => 'evergreen.lowercase',
366 return $res->[0]->id if $res and @$res == 1;
369 # Note that we don't validate IDs; we only try a shortname lookup and then
370 # assume anything else must be an ID.
371 return int($str); # Wrapping in int() prevents 500 on unmatched string.
374 sub _get_search_lib {
376 my $ctx = $self->ctx;
378 # avoid duplicate lookups
379 return $ctx->{search_ou} if $ctx->{search_ou};
381 my $loc = $ctx->{copy_location_group_org};
384 # loc param takes precedence
385 # XXX ^-- over what exactly? We could use clarification here. To me it looks
386 # like locg takes precedence over loc which in turn takes precedence over
387 # request headers which take precedence over pref_lib (which can be
388 # specified a lot of different ways and eventually falls back to
389 # physical_loc) and it all finally defaults to top of the org tree.
390 # To say nothing of all the code that doesn't look to this function at all
391 # but rather accesses some subset of these inputs directly.
393 $loc = $self->cgi->param('loc');
396 if ($self->apache->headers_in->get('OILS-Search-Lib')) {
397 return $self->apache->headers_in->get('OILS-Search-Lib');
400 my $pref_lib = $self->_get_pref_lib();
401 return $pref_lib if $pref_lib;
403 return $ctx->{aou_tree}->()->id;
408 my $ctx = $self->ctx;
410 # plib param takes precedence
411 my $plib = $self->cgi->param('plib');
412 return $plib if $plib;
414 if ($self->apache->headers_in->get('OILS-Pref-Lib')) {
415 return $self->apache->headers_in->get('OILS-Pref-Lib');
419 # See if the user has a search library preference
420 my $lset = $self->editor->search_actor_user_setting({
421 usr => $ctx->{user}->id,
422 name => 'opac.default_search_location'
424 return OpenSRF::Utils::JSON->JSON2perl($lset->value) if $lset;
426 # Otherwise return the user's home library
427 my $ou = $ctx->{user}->home_ou;
428 return ref($ou) ? $ou->id : $ou;
431 if ($ctx->{physical_loc}) {
432 return $ctx->{physical_loc};
437 # This is defensively coded since we don't do much manual reading from the
438 # file system in this module.
439 sub load_eg_cache_hash {
442 # just a context helper
443 $self->ctx->{eg_cache_hash} = sub { return $cache{eg_cache_hash}; };
445 # Need to actually load the value? If already done, move on.
446 return if defined $cache{eg_cache_hash};
448 # In this way even if we fail, we won't slow things down by ever trying
449 # again within this Apache process' lifetime.
450 $cache{eg_cache_hash} = 0;
452 my $path = File::Spec->catfile(
453 $self->apache->document_root, "eg_cache_hash"
456 if (not open FH, "<$path") {
457 $self->apache->log->warn("error opening $path : $!");
461 my $rv = read FH, $buf, 64; # defensive
464 if (not defined $rv) { # error
465 $self->apache->log->warn("error reading $path : $!");
466 } elsif ($rv > 0) { # no error, something read
468 $cache{eg_cache_hash} = $buf;
473 # Extracts the copy location org unit and group from the
474 # "logc" param, which takes the form org_id:grp_id.
475 sub extract_copy_location_group_info {
477 my $ctx = $self->ctx;
478 if (my $clump = $self->cgi->param('locg')) {
479 my ($org, $grp) = split(/:/, $clump);
480 $ctx->{copy_location_group_org} =
481 $self->_resolve_org_id_or_shortname($org);
482 $ctx->{copy_location_group} = $grp if $grp;
486 sub load_copy_location_groups {
488 my $ctx = $self->ctx;
490 # User can access to the search location groups at the current
491 # search lib, the physical location lib, and the patron's home ou.
492 my @ctx_orgs = $ctx->{search_ou};
493 push(@ctx_orgs, $ctx->{physical_loc}) if $ctx->{physical_loc};
494 push(@ctx_orgs, $ctx->{user}->home_ou) if $ctx->{user};
496 my $grps = $self->editor->search_asset_copy_location_group([
503 transform => 'actor.org_unit_full_path',
504 result_field => 'id',
507 where => {id => \@ctx_orgs}
511 {order_by => {acplg => 'pos'}}
515 push(@{$buckets{$_->owner}}, $_) for @$grps;
516 $ctx->{copy_location_groups} = \%buckets;
519 sub set_file_download_headers {
521 my $filename = shift;
522 my $ctype = shift || "text/plain; encoding=utf8";
524 $self->apache->content_type($ctype);
526 $self->apache->headers_out->add(
527 "Content-Disposition",
528 "attachment;filename=$filename"
531 return Apache2::Const::OK;
534 sub apache_log_if_event {
535 my ($self, $event, $prefix_text, $success_ok, $level) = @_;
537 $prefix_text ||= "Evergreen returned event";
542 $prefix_text .= ": ";
544 my $code = $U->event_code($event);
545 if (defined $code and ($code or not $success_ok)) {
546 $self->apache->log->$level(
548 ($event->{textcode} || "") . " ($code)" .
549 ($event->{note} ? (": " . $event->{note}) : "")
557 sub load_search_filter_groups {
560 my $org_list = $U->get_org_ancestors($ctx_org, 1);
563 for my $org_id (@$org_list) {
566 if (! ($grps = $cache{search_filter_groups}{$org_id}) ) {
567 $grps = $self->editor->search_actor_search_filter_group([
574 order_by => {asfge => 'pos'}
577 $cache{search_filter_groups}{$org_id} = $grps;
580 # for the current context, if a descendant org has a group
581 # with a matching code replace the group from the parent.
582 $seen{$_->code} = $_ for @$grps;
585 return $self->ctx->{search_filter_groups} = \%seen;
589 sub check_for_temp_list_warning {
591 my $ctx = $self->ctx;
592 my $cgi = $self->cgi;
594 my $lib = $self->_get_search_lib;
595 my $warn = ($ctx->{get_org_setting}->($lib || 1, 'opac.patron.temporary_list_warn')) ? 1 : 0;
597 if ($warn && $ctx->{user}) {
598 $self->_load_user_with_prefs;
599 my $map = $ctx->{user_setting_map};
600 $warn = 0 if ($$map{'opac.temporary_list_no_warn'});
603 # Check for a cookie disabling the warning.
604 $warn = 0 if ($warn && $cgi->cookie('no_temp_list_warn'));
609 sub load_org_util_funcs {
611 my $ctx = $self->ctx;
613 # evaluates to true if test_ou is within the same depth-
614 # scoped tree as ctx_ou. both ou's are org unit objects.
615 $ctx->{org_within_scope} = sub {
616 my ($ctx_ou, $test_ou, $depth) = @_;
618 return 1 if $ctx_ou->id == $test_ou->id;
622 # find the top-most ctx-org ancestor at the provided depth
623 while ($depth < $ctx_ou->ou_type->depth
624 and $ctx_ou->id != $test_ou->id) {
625 $ctx_ou = $ctx->{get_aou}->($ctx_ou->parent_ou);
628 # the preceeding loop may have landed on our org
629 return 1 if $ctx_ou->id == $test_ou->id;
633 return 1 if defined $depth; # $depth == 0;
636 for my $child (@{$ctx_ou->children}) {
637 return 1 if $ctx->{org_within_scope}->($child, $test_ou);
643 # Returns true if the provided org unit is within the same
644 # org unit hiding depth-scoped tree as the physical location.
645 # Org unit hiding is based on the immutable physical_loc
646 # and is not meant to change as search/pref/etc libs change
647 $ctx->{org_within_hiding_scope} = sub {
649 my $ploc = $ctx->{physical_loc} or return 1;
651 my $depth = $ctx->{get_org_setting}->(
652 $ploc, 'opac.org_unit_hiding.depth');
654 return 1 unless $depth; # 0 or undef
656 return $ctx->{org_within_scope}->(
657 $ctx->{get_aou}->($ploc),
658 $ctx->{get_aou}->($org_id), $depth);
662 # Evaluates to true if the context org (defaults to get_library)
663 # is not within the hiding scope. Also evaluates to true if the
664 # user's pref_ou is set and it's out of hiding scope.
665 # Always evaluates to true when ctx.is_staff
666 $ctx->{org_hiding_disabled} = sub {
667 my $ctx_org = shift || $ctx->{search_ou};
669 return 1 if $ctx->{is_staff};
671 # beware locg values formatted as org:loc
672 $ctx_org =~ s/:.*//g;
674 return 1 if !$ctx->{org_within_hiding_scope}->($ctx_org);
676 return 1 if $ctx->{pref_ou} and $ctx->{pref_ou} != $ctx_org
677 and !$ctx->{org_within_hiding_scope}->($ctx->{pref_ou});