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 );
  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 foreach ($query->param) {
  91     if (/^newtag(.*)/) {
  92         my $biblionumber = $1;
  93         unless ($biblionumber =~ /^\d+$/) {
  94             $debug and warn "$_ references non numerical biblionumber '$biblionumber'";
  95             push @errors, {+'badparam' => $_ };
  96             push @globalErrorIndexes, $#errors;
  97             next;
  98         }
  99         $newtags{$biblionumber} = $query->param($_);
 100     } elsif (/^del(\d+)$/) {
 101         push @deltags, $1;
 102     }
 103 }
 104
 105 my $add_op = (scalar(keys %newtags) + scalar(@deltags)) ? 1 : 0;
 106 my ($template, $loggedinuser, $cookie);
 107 if ($is_ajax) {
 108         $loggedinuser = C4::Context->userenv->{'number'};  # must occur AFTER auth
 109         $debug and print STDERR "op: $loggedinuser\n";
 110 } else {
 111         ($template, $loggedinuser, $cookie) = get_template_and_user({
 112         template_name   => "opac-tags.tt",
 113         query           => $query,
 114         type            => "opac",
 115         authnotrequired => ($add_op ? 0 : 1), # auth required to add tags
 116         debug           => 1,
 117         });
 118 }
 119
 120 unless ( C4::Context->preference('TagsEnabled') ) {
 121     print $query->redirect("/cgi-bin/koha/errors/404.pl");
 122     exit;
 123 }
 124
 125 if ($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             my $variables = {
 289                 anonymous_session => ($loggedinuser) ? 0 : 1
 290             };
 291             $tag->{XSLTBloc} = XSLTParse4Display(
 292                 $tag->{biblionumber},     $record,
 293                 "OPACXSLTResultsDisplay", 1,
 294                 $hidden_items,            $sysxml,
 295                 $xslfile,                 $lang,
 296                 $variables
 297             );
 298         }
 299
 300         my $date = $tag->{date_created} || '';
 301         $date =~ /\s+(\d{2}\:\d{2}\:\d{2})/;
 302         $tag->{time_created_display} = $1;
 303         $tag->{approved} = ( grep { $_->{term} eq $tag->{term} and $_->{approved} } @$my_approved_tags );
 304         $tag->{visible} = 1;
 305         # while we're checking each line, see if item is in the cart
 306         if ( grep {$_ eq $biblio->biblionumber} @cart_list) {
 307             $tag->{incart} = 1;
 308         }
 309     }
 310 }
 311
 312 $template->param(tagsview => 1);
 313
 314 if ($add_op) {
 315         my $adds = 0;
 316         for (values %counts) {$adds += $_;}
 317         $template->param(
 318                 add_op => 1,
 319                 added_count => $adds,
 320                 deleted_count => $dels,
 321         );
 322 } else {
 323         my ($arg,$limit,$mine);
 324         my $hardmax = 100;      # you might disagree what this value should be, but there definitely should be a max
 325         $limit = $query->param('limit') || $hardmax;
 326     $mine =  $query->param('mine') || 0; # set if the patron want to see only his own tags.
 327         ($limit =~ /^\d+$/ and $limit <= $hardmax) or $limit = $hardmax;
 328         $template->param(limit => $limit);
 329         my $arghash = {approved=>1, limit=>$limit, 'sort'=>'-weight_total'};
 330     $arghash->{'borrowernumber'} = $loggedinuser if $mine;
 331         # ($openadds) or $arghash->{approved} = 1;
 332         if ($arg = $query->param('tag')) {
 333                 $arghash->{term} = $arg;
 334         } elsif ($arg = $query->param('biblionumber')) {
 335                 $arghash->{biblionumber} = $arg;
 336         }
 337         $results = get_approval_rows($arghash);
 338     stratify_tags(10, $results); # work out the differents sizes for things
 339         my $count = scalar @$results;
 340         $template->param(TAGLOOP_COUNT => $count, mine => $mine);
 341 }
 342 (scalar @errors  ) and $template->param(ERRORS  => \@errors);
 343 my @orderedresult = sort { uc($a->{'term'}) cmp uc($b->{'term'}) } @$results;
 344 (scalar @$results) and $template->param(TAGLOOP => \@orderedresult );
 345 (scalar @$my_tags) and $template->param(MY_TAGS => $my_tags);
 346
 347 output_html_with_http_headers $query, $cookie, $template->output;
 348 __END__
 349
 350 =head1 EXAMPLE AJAX POST PARAMETERS
 351
 352 CGISESSID       7c6288263107beb320f70f78fd767f56
 353 newtag396       fire,+<a+href="foobar.html">foobar</a>,+<img+src="foo.jpg"+/>
 354
 355 So this request is trying to add 3 tags to biblio #396.  The CGISESSID is the same as that the browser would
 356 typically communicate using cookies.  If it is valid, the server will split the value of "newtag396" and
 357 process the components for addition.  In this case the intended tags are:
 358         fire
 359         <a+href="foobar.html">foobar</a>
 360         <img src="foo.jpg" />
 361
 362 The first tag is acceptable.  The second will be scrubbed of markup, resulting in the tag "foobar".
 363 The third tag is all markup, and will be rejected.
 364
 365 =head1 EXAMPLE AJAX JSON response
 366
 367 response = {
 368         added: 2,
 369         deleted: 0,
 370         errors: 2,
 371         alerts: [
 372                  KOHA.Tags.tag_message.scrubbed("foobar"),
 373                  KOHA.Tags.tag_message.scrubbed_all_bad("1"),
 374         ],
 375 };
 376
 377 =cut
 378