opac/opac-tags.pl

   1 #!/usr/bin/perl
   2
   3 # Copyright 2000-2002 Katipo Communications
   4 #
   5 # This file is part of Koha.
   6 #
   7 # Koha is free software; you can redistribute it and/or modify it
   8 # under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # Koha is distributed in the hope that it will be useful, but
  13 # WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  19
  20
  21 =head1 NAME
  22
  23 opac-tags.pl
  24
  25 =head1 DESCRIPTION
  26
  27 TODO :: Description here
  28
  29 C4::Scrubber is used to remove all markup content from the sumitted text.
  30
  31 =cut
  32
  33 use Modern::Perl;
  34
  35 use CGI qw ( -utf8 );
  36 use CGI::Cookie; # need to check cookies before having CGI parse the POST request
  37
  38 use C4::Auth qw(:DEFAULT check_cookie_auth);
  39 use C4::Context;
  40 use C4::Debug;
  41 use C4::Output qw(:html :ajax pagination_bar);
  42 use C4::Scrubber;
  43 use C4::Biblio;
  44 use C4::Items qw(GetItemsInfo GetHiddenItemnumbers);
  45 use C4::Tags qw(add_tag get_approval_rows get_tag_rows remove_tag stratify_tags);
  46 use C4::XSLT;
  47
  48 use Data::Dumper;
  49
  50 use Koha::Biblios;
  51 use Koha::CirculationRules;
  52
  53 my %newtags = ();
  54 my @deltags = ();
  55 my %counts  = ();
  56 my @errors  = ();
  57 my $perBibResults = {};
  58
  59 # Indexes of @errors that do not apply to a particular biblionumber.
  60 my @globalErrorIndexes = ();
  61
  62 sub ajax_auth_cgi {     # returns CGI object
  63         my $needed_flags = shift;
  64     my %cookies = CGI::Cookie->fetch;
  65         my $input = CGI->new;
  66     my $sessid = $cookies{'CGISESSID'}->value;
  67         my ($auth_status, $auth_sessid) = check_cookie_auth($sessid, $needed_flags);
  68         $debug and
  69         print STDERR "($auth_status, $auth_sessid) = check_cookie_auth($sessid," . Dumper($needed_flags) . ")\n";
  70         if ($auth_status ne "ok") {
  71                 output_with_http_headers $input, undef,
  72                 "window.alert('Your CGI session cookie ($sessid) is not current.  " .
  73                 "Please refresh the page and try again.');\n", 'js';
  74                 exit 0;
  75         }
  76         $debug and print STDERR "AJAX request: " . Dumper($input),
  77                 "\n(\$auth_status,\$auth_sessid) = ($auth_status,$auth_sessid)\n";
  78         return $input;
  79 }
  80
  81 # The trick here is to support multiple tags added to multiple bilbios in one POST.
  82 # The HTML might not use this, but it makes it more web-servicey from the start.
  83 # So the name of param has to have biblionumber built in.
  84 # For lack of anything more compelling, we just use "newtag[biblionumber]"
  85 # We split the value into tags at comma and semicolon
  86
  87 my $is_ajax = is_ajax();
  88 my $openadds = C4::Context->preference('TagsModeration') ? 0 : 1;
  89 my $query = ($is_ajax) ? &ajax_auth_cgi({}) : CGI->new();
  90 unless (C4::Context->preference('TagsEnabled')) {
  91         push @errors, {+ tagsdisabled=>1 };
  92     push @globalErrorIndexes, $#errors;
  93 } else {
  94         foreach ($query->param) {
  95                 if (/^newtag(.*)/) {
  96                         my $biblionumber = $1;
  97                         unless ($biblionumber =~ /^\d+$/) {
  98                                 $debug and warn "$_ references non numerical biblionumber '$biblionumber'";
  99                                 push @errors, {+'badparam' => $_ };
 100                 push @globalErrorIndexes, $#errors;
 101                                 next;
 102                         }
 103                         $newtags{$biblionumber} = $query->param($_);
 104                 } elsif (/^del(\d+)$/) {
 105                         push @deltags, $1;
 106                 }
 107         }
 108 }
 109
 110 my $add_op = (scalar(keys %newtags) + scalar(@deltags)) ? 1 : 0;
 111 my ($template, $loggedinuser, $cookie);
 112 if ($is_ajax) {
 113         $loggedinuser = C4::Context->userenv->{'number'};  # must occur AFTER auth
 114         $debug and print STDERR "op: $loggedinuser\n";
 115 } else {
 116         ($template, $loggedinuser, $cookie) = get_template_and_user({
 117         template_name   => "opac-tags.tt",
 118         query           => $query,
 119         type            => "opac",
 120         authnotrequired => ($add_op ? 0 : 1), # auth required to add tags
 121         debug           => 1,
 122         });
 123 }
 124
 125 if ($add_op) {
 126         unless ($loggedinuser) {
 127                 push @errors, {+'login' => 1 };
 128         push @globalErrorIndexes, $#errors;
 129                 %newtags=();    # zero out any attempted additions
 130                 @deltags=();    # zero out any attempted deletions
 131         }
 132 }
 133
 134 my $scrubber;
 135 my @newtags_keys = (keys %newtags);
 136 if (scalar @newtags_keys) {
 137         $scrubber = C4::Scrubber->new();
 138         foreach my $biblionumber (@newtags_keys) {
 139         my $bibResults = {adds=>0, errors=>[]};
 140                 my @values = split /[;,]/, $newtags{$biblionumber};
 141                 foreach (@values) {
 142                         s/^\s*(.+)\s*$/$1/;
 143                         my $clean_tag = $scrubber->scrub($_);
 144                         unless ($clean_tag eq $_) {
 145                                 if ($clean_tag =~ /\S/) {
 146                                         push @errors, {scrubbed=>$clean_tag};
 147                                         push @{$bibResults->{errors}}, {scrubbed=>$clean_tag};
 148                                 } else {
 149                                         push @errors, {scrubbed_all_bad=>1};
 150                                         push @{$bibResults->{errors}}, {scrubbed_all_bad=>1};
 151                                         next;   # we don't add it if there's nothing left!
 152                                 }
 153                         }
 154                         my $result = ($openadds) ?
 155                                 add_tag($biblionumber,$clean_tag,$loggedinuser,$loggedinuser) : # pre-approved
 156                                 add_tag($biblionumber,$clean_tag,$loggedinuser)   ;
 157                         if ($result) {
 158                                 $counts{$biblionumber}++;
 159                 $bibResults->{adds}++;
 160                         } else {
 161                                 push @errors, {failed_add_tag=>$clean_tag};
 162                                 push @{$bibResults->{errors}}, {failed_add_tag=>$clean_tag};
 163                                 $debug and warn "add_tag($biblionumber,$clean_tag,$loggedinuser...) returned bad result (" . (defined $result ? $result : 'UNDEF') .")";
 164                         }
 165                 }
 166         $perBibResults->{$biblionumber} = $bibResults;
 167         }
 168 }
 169 my $dels = 0;
 170 foreach (@deltags) {
 171         if (remove_tag($_,$loggedinuser)) {
 172                 $dels++;
 173         } else {
 174                 push @errors, {failed_delete=>$_};
 175         }
 176 }
 177
 178 if ($is_ajax) {
 179         my $sum = 0;
 180         foreach (values %counts) {$sum += $_;}
 181         my $js_reply = sprintf("response = {\n\tadded: %d,\n\tdeleted: %d,\n\terrors: %d",$sum,$dels,scalar @errors);
 182
 183     # If no add attempts were made, flag global errors.
 184     if (@globalErrorIndexes) {
 185         $js_reply .= ",\n\tglobal_errors: [";
 186         my $first = 1;
 187         foreach (@globalErrorIndexes) {
 188             $js_reply .= "," unless $first;
 189             $first = 0;
 190             $js_reply .= "\n\t\t$_";
 191         }
 192         $js_reply .= "\n\t]";
 193     }
 194
 195         my $err_string = '';
 196         if (scalar @errors) {
 197                 $err_string = ",\n\talerts: ["; # open response_function
 198                 my $i = 1;
 199                 foreach (@errors) {
 200                         my $key = (keys %$_)[0];
 201                         $err_string .= "\n\t\t KOHA.Tags.tag_message.$key(\"" . $_->{$key} . '")';
 202                         if($i < scalar @errors){ $err_string .= ","; }
 203                         $i++;
 204                 }
 205                 $err_string .= "\n\t]\n";       # close response_function
 206         }
 207
 208     # Add per-biblionumber results for use on results page
 209     my $js_perbib = "";
 210     for my $bib (keys %$perBibResults) {
 211         my $bibResult = $perBibResults->{$bib};
 212         my $js_bibres = ",\n\t$bib: {\n\t\tadded: $bibResult->{adds}";
 213         $js_bibres .= ",\n\t\terrors: [";
 214         my $i = 0;
 215         foreach (@{$bibResult->{errors}}) {
 216             $js_bibres .= "," if ($i);
 217                         my $key = (keys %$_)[0];
 218                         $js_bibres .= "\n\t\t\t KOHA.Tags.tag_message.$key(\"" . $_->{$key} . '")';
 219             $i++;
 220         }
 221         $js_bibres .= "\n\t\t]\n\t}";
 222         $js_perbib .= $js_bibres;
 223     }
 224
 225         output_with_http_headers($query, undef, "$js_reply\n$err_string\n$js_perbib\n};", 'js');
 226         exit;
 227 }
 228
 229 my $results = [];
 230 my $my_tags = [];
 231 my $borcat  = q{};
 232
 233 if ($loggedinuser) {
 234     my $patron = Koha::Patrons->find( { borrowernumber => $loggedinuser } );
 235     $borcat = $patron ? $patron->categorycode : $borcat;
 236     my $should_hide = C4::Context->preference('OpacHiddenItems') // q{};
 237     $should_hide = ( $should_hide =~ /\S/ ) ? 1 : 0;
 238     $my_tags = get_tag_rows({borrowernumber=>$loggedinuser});
 239     my $my_approved_tags = get_approval_rows({ approved => 1 });
 240
 241     my $art_req_itypes;
 242     if( C4::Context->preference('ArticleRequests') ) {
 243         $art_req_itypes = Koha::CirculationRules->guess_article_requestable_itemtypes({ $patron ? ( categorycode => $patron->categorycode ) : () });
 244     }
 245
 246     # get biblionumbers stored in the cart
 247     my @cart_list;
 248
 249     if($query->cookie("bib_list")){
 250         my $cart_list = $query->cookie("bib_list");
 251         @cart_list = split(/\//, $cart_list);
 252     }
 253
 254     foreach my $tag (@$my_tags) {
 255         $tag->{visible} = 0;
 256         my $biblio = Koha::Biblios->find( $tag->{biblionumber} );
 257         my $record = &GetMarcBiblio({
 258             biblionumber => $tag->{biblionumber},
 259             embed_items  => 1,
 260             opac         => 1,
 261             borcat       => $borcat });
 262         next unless $record;
 263         my $hidden_items = undef;
 264         my @hidden_itemnumbers;
 265         my @all_items;
 266         if ($should_hide) {
 267             @all_items = GetItemsInfo( $tag->{biblionumber} );
 268             @hidden_itemnumbers = GetHiddenItemnumbers({
 269                 items => \@all_items,
 270                 borcat => $borcat });
 271             $hidden_items = \@hidden_itemnumbers;
 272         }
 273         next if ( $should_hide && scalar @all_items == scalar @hidden_itemnumbers );
 274         $tag->{title} = $biblio->title;
 275         $tag->{subtitle} = $biblio->subtitle;
 276         $tag->{medium} = $biblio->medium;
 277         $tag->{part_number} = $biblio->part_number;
 278         $tag->{part_name} = $biblio->part_name;
 279         $tag->{author} = $biblio->author;
 280         # BZ17530: 'Intelligent' guess if result can be article requested
 281         $tag->{artreqpossible} = ( $art_req_itypes->{ $tag->{itemtype} // q{} } || $art_req_itypes->{ '*' } ) ? 1 : q{};
 282
 283         my $xslfile = C4::Context->preference('OPACXSLTResultsDisplay');
 284         my $lang   = $xslfile ? C4::Languages::getlanguage()  : undef;
 285         my $sysxml = $xslfile ? C4::XSLT::get_xslt_sysprefs() : undef;
 286
 287         if ( $xslfile ) {
 288             $tag->{XSLTBloc} = XSLTParse4Display(
 289                     $tag->{ biblionumber }, $record, "OPACXSLTResultsDisplay",
 290                     1, $hidden_items, $sysxml, $xslfile, $lang
 291             );
 292         }
 293
 294         my $date = $tag->{date_created} || '';
 295         $date =~ /\s+(\d{2}\:\d{2}\:\d{2})/;
 296         $tag->{time_created_display} = $1;
 297         $tag->{approved} = ( grep { $_->{term} eq $tag->{term} and $_->{approved} } @$my_approved_tags );
 298         $tag->{visible} = 1;
 299         # while we're checking each line, see if item is in the cart
 300         if ( grep {$_ eq $biblio->biblionumber} @cart_list) {
 301             $tag->{incart} = 1;
 302         }
 303     }
 304 }
 305
 306 $template->param(tagsview => 1);
 307
 308 if ($add_op) {
 309         my $adds = 0;
 310         for (values %counts) {$adds += $_;}
 311         $template->param(
 312                 add_op => 1,
 313                 added_count => $adds,
 314                 deleted_count => $dels,
 315         );
 316 } else {
 317         my ($arg,$limit,$mine);
 318         my $hardmax = 100;      # you might disagree what this value should be, but there definitely should be a max
 319         $limit = $query->param('limit') || $hardmax;
 320     $mine =  $query->param('mine') || 0; # set if the patron want to see only his own tags.
 321         ($limit =~ /^\d+$/ and $limit <= $hardmax) or $limit = $hardmax;
 322         $template->param(limit => $limit);
 323         my $arghash = {approved=>1, limit=>$limit, 'sort'=>'-weight_total'};
 324     $arghash->{'borrowernumber'} = $loggedinuser if $mine;
 325         # ($openadds) or $arghash->{approved} = 1;
 326         if ($arg = $query->param('tag')) {
 327                 $arghash->{term} = $arg;
 328         } elsif ($arg = $query->param('biblionumber')) {
 329                 $arghash->{biblionumber} = $arg;
 330         }
 331         $results = get_approval_rows($arghash);
 332     stratify_tags(10, $results); # work out the differents sizes for things
 333         my $count = scalar @$results;
 334         $template->param(TAGLOOP_COUNT => $count, mine => $mine);
 335 }
 336 (scalar @errors  ) and $template->param(ERRORS  => \@errors);
 337 my @orderedresult = sort { uc($a->{'term'}) cmp uc($b->{'term'}) } @$results;
 338 (scalar @$results) and $template->param(TAGLOOP => \@orderedresult );
 339 (scalar @$my_tags) and $template->param(MY_TAGS => $my_tags);
 340
 341 output_html_with_http_headers $query, $cookie, $template->output;
 342 __END__
 343
 344 =head1 EXAMPLE AJAX POST PARAMETERS
 345
 346 CGISESSID       7c6288263107beb320f70f78fd767f56
 347 newtag396       fire,+<a+href="foobar.html">foobar</a>,+<img+src="foo.jpg"+/>
 348
 349 So this request is trying to add 3 tags to biblio #396.  The CGISESSID is the same as that the browser would
 350 typically communicate using cookies.  If it is valid, the server will split the value of "newtag396" and
 351 process the components for addition.  In this case the intended tags are:
 352         fire
 353         <a+href="foobar.html">foobar</a>
 354         <img src="foo.jpg" />
 355
 356 The first tag is acceptable.  The second will be scrubbed of markup, resulting in the tag "foobar".
 357 The third tag is all markup, and will be rejected.
 358
 359 =head1 EXAMPLE AJAX JSON response
 360
 361 response = {
 362         added: 2,
 363         deleted: 0,
 364         errors: 2,
 365         alerts: [
 366                  KOHA.Tags.tag_message.scrubbed("foobar"),
 367                  KOHA.Tags.tag_message.scrubbed_all_bad("1"),
 368         ],
 369 };
 370
 371 =cut
 372