3 #package to deal with marking up output
4 #You will need to edit parts of this pm
5 #set the value of path to be where your html lives
7 # Copyright 2000-2002 Katipo Communications
9 # This file is part of Koha.
11 # Koha is free software; you can redistribute it and/or modify it
12 # under the terms of the GNU General Public License as published by
13 # the Free Software Foundation; either version 3 of the License, or
14 # (at your option) any later version.
16 # Koha is distributed in the hope that it will be useful, but
17 # WITHOUT ANY WARRANTY; without even the implied warranty of
18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 # GNU General Public License for more details.
21 # You should have received a copy of the GNU General Public License
22 # along with Koha; if not, see <http://www.gnu.org/licenses>.
25 # NOTE: I'm pretty sure this module is deprecated in favor of
29 #use warnings; FIXME - Bug 2505
32 use Scalar::Util qw( looks_like_number );
34 use C4::Auth qw(get_template_and_user);
38 use vars qw(@ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
44 @EXPORT_OK = qw(&is_ajax ajax_fail); # More stuff should go here instead
45 %EXPORT_TAGS = ( all =>[qw(setlanguagecookie pagination_bar parametrized_url
46 &output_with_http_headers &output_ajax_with_http_headers &output_html_with_http_headers)],
47 ajax =>[qw(&output_with_http_headers &output_ajax_with_http_headers is_ajax)],
48 html =>[qw(&output_with_http_headers &output_html_with_http_headers)]
51 setlanguagecookie getlanguagecookie pagination_bar parametrized_url
54 &output_html_with_http_headers &output_ajax_with_http_headers &output_with_http_headers
55 &output_and_exit_if_error &output_and_exit &output_error
62 C4::Output - Functions for managing output, is slowly being deprecated
70 pagination_bar($base_url, $nb_pages, $current_page, $startfrom_name)
72 Build an HTML pagination bar based on the number of page to display, the
73 current page and the url to give to each page link.
75 C<$base_url> is the URL for each page link. The
76 C<$startfrom_name>=page_number is added at the end of the each URL.
78 C<$nb_pages> is the total number of pages available.
80 C<$current_page> is the current page number. This page number won't become a
83 This function returns HTML, without any language dependency.
88 my $base_url = (@_ ? shift : return);
89 my $nb_pages = (@_) ? shift : 1;
90 my $current_page = (@_) ? shift : undef; # delay default until later
91 my $startfrom_name = (@_) ? shift : 'page';
92 my $additional_parameters = shift || {};
94 $current_page = looks_like_number($current_page) ? $current_page : undef;
95 $nb_pages = looks_like_number($nb_pages) ? $nb_pages : undef;
97 # how many pages to show before and after the current page?
100 my $delim = qr/\&(?:amp;)?|;/; # "non memory" cluster: no backreference
101 $base_url =~ s/$delim*\b$startfrom_name=(\d+)//g; # remove previous pagination var
102 unless (defined $current_page and $current_page > 0 and $current_page <= $nb_pages) {
103 $current_page = ($1) ? $1 : 1; # pull current page from param in URL, else default to 1
104 # $debug and # FIXME: use C4::Debug;
105 # warn "with QUERY_STRING:" .$ENV{QUERY_STRING}. "\ncurrent_page:$current_page\n1:$1 2:$2 3:$3";
107 $base_url =~ s/($delim)+/$1/g; # compress duplicate delims
108 $base_url =~ s/$delim;//g; # remove empties
109 $base_url =~ s/$delim$//; # remove trailing delim
111 my $url = $base_url . (($base_url =~ m/$delim/ or $base_url =~ m/\?/) ? '&' : '?' ) . $startfrom_name . '=';
113 while ( my ( $k, $v ) = each %$additional_parameters ) {
114 $url_suffix .= '&' . URI::Escape::uri_escape_utf8($k) . '=' . URI::Escape::uri_escape_utf8($v);
116 my $pagination_bar = '';
118 # navigation bar useful only if more than one page to display !
119 if ( $nb_pages > 1 ) {
121 # link to first page?
122 if ( $current_page > 1 ) {
130 . '<<' . '</a>';
134 "\n" . ' <span class="inactive"><<</span>';
137 # link on previous page ?
138 if ( $current_page > 1 ) {
139 my $previous = $current_page - 1;
147 . '" rel="prev">' . '<' . '</a>';
151 "\n" . ' <span class="inactive"><</span>';
154 my $min_to_display = $current_page - $pages_around;
155 my $max_to_display = $current_page + $pages_around;
156 my $last_displayed_page = undef;
158 for my $page_number ( 1 .. $nb_pages ) {
161 or $page_number == $nb_pages
162 or ( $page_number >= $min_to_display
163 and $page_number <= $max_to_display )
166 if ( defined $last_displayed_page
167 and $last_displayed_page != $page_number - 1 )
170 "\n" . ' <span class="inactive">...</span>';
173 if ( $page_number == $current_page ) {
176 . '<span class="currentPage">'
188 . $page_number . '</a>';
190 $last_displayed_page = $page_number;
195 if ( $current_page < $nb_pages ) {
196 my $next = $current_page + 1;
198 $pagination_bar .= "\n"
203 . '" rel="next">' . '>' . '</a>';
207 "\n" . ' <span class="inactive">></span>';
211 if ( $current_page != $nb_pages ) {
212 $pagination_bar .= "\n"
218 . '>>' . '</a>';
222 "\n" . ' <span class="inactive">>></span>';
226 return $pagination_bar;
229 =item output_with_http_headers
231 &output_with_http_headers($query, $cookie, $data, $content_type[, $status[, $extra_options]])
233 Outputs $data with the appropriate HTTP headers,
234 the authentication cookie $cookie and a Content-Type specified in
237 If applicable, $cookie can be undef, and it will not be sent.
239 $content_type is one of the following: 'html', 'js', 'json', 'opensearchdescription', 'xml', 'rss', or 'atom'.
241 $status is an HTTP status message, like '403 Authentication Required'. It defaults to '200 OK'.
243 $extra_options is hashref. If the key 'force_no_caching' is present and has
244 a true value, the HTTP headers include directives to force there to be no
249 sub output_with_http_headers {
250 my ( $query, $cookie, $data, $content_type, $status, $extra_options ) = @_;
251 $status ||= '200 OK';
253 $extra_options //= {};
255 my %content_type_map = (
256 'html' => 'text/html',
257 'js' => 'text/javascript',
258 'json' => 'application/json',
260 # NOTE: not using application/atom+xml or application/rss+xml because of
261 # Internet Explorer 6; see bug 2078.
263 'atom' => 'text/xml',
264 'opensearchdescription' => 'application/opensearchdescription+xml',
267 die "Unknown content type '$content_type'" if ( !defined( $content_type_map{$content_type} ) );
268 my $cache_policy = 'no-cache';
269 $cache_policy .= ', no-store, max-age=0' if $extra_options->{force_no_caching};
271 type => $content_type_map{$content_type},
274 Pragma => 'no-cache',
275 'Cache-Control' => $cache_policy,
276 'X-Frame-Options' => 'SAMEORIGIN',
278 $options->{expires} = 'now' if $extra_options->{force_no_caching};
280 $options->{cookie} = $cookie if $cookie;
281 if ($content_type eq 'html') { # guaranteed to be one of the content_type_map keys, else we'd have died
282 $options->{'Content-Style-Type' } = 'text/css';
283 $options->{'Content-Script-Type'} = 'text/javascript';
286 # We can't encode here, that will double encode our templates, and xslt
287 # We need to fix the encoding as it comes out of the database, or when we pass the variables to templates
289 $data =~ s/\&\;amp\; /\&\; /g;
290 print $query->header($options), $data;
293 sub output_html_with_http_headers {
294 my ( $query, $cookie, $data, $status, $extra_options ) = @_;
295 output_with_http_headers( $query, $cookie, $data, 'html', $status, $extra_options );
299 sub output_ajax_with_http_headers {
300 my ( $query, $js ) = @_;
301 print $query->header(
302 -type => 'text/javascript',
304 -Pragma => 'no-cache',
305 -'Cache-Control' => 'no-cache',
311 my $x_req = $ENV{HTTP_X_REQUESTED_WITH};
312 return ( $x_req and $x_req =~ /XMLHttpRequest/i ) ? 1 : 0;
315 =item output_and_exit_if_error
317 output_and_exit_if_error( $query, $cookie, $template, $params );
319 To executed at the beginning of scripts to stop the script at this point if
320 some errors are found.
322 Tests for module 'members':
323 * patron is not defined (we are looking for a patron that does no longer exist/never existed)
324 * The logged in user cannot see patron's infos (feature 'cannot_see_patron_infos')
326 Others will be added here depending on the needs (for instance biblio does not exist will be useful).
330 sub output_and_exit_if_error {
331 my ( $query, $cookie, $template, $params ) = @_;
333 if ( $params and exists $params->{module} ) {
334 if ( $params->{module} eq 'members' ) {
335 my $logged_in_user = $params->{logged_in_user};
336 my $current_patron = $params->{current_patron};
337 if ( not $current_patron ) {
338 $error = 'unknown_patron';
340 elsif( not $logged_in_user->can_see_patron_infos( $current_patron ) ) {
341 $error = 'cannot_see_patron_infos';
343 } elsif ( $params->{module} eq 'cataloguing' ) {
344 # We are testing the record to avoid additem to fetch the Koha::Biblio
345 # But in the long term we will want to get a biblio in parameter
346 $error = 'unknown_biblio' unless $params->{record};
350 output_and_exit( $query, $cookie, $template, $error ) if $error;
354 =item output_and_exit
356 output_and_exit( $query, $cookie, $template, $error );
358 $error is a blocking error like biblionumber not found or so.
359 We should output the error and exit.
363 sub output_and_exit {
364 my ( $query, $cookie, $template, $error ) = @_;
365 $template->param( blocking_error => $error );
366 output_html_with_http_headers ( $query, $cookie, $template->output );
371 my ( $query, $error ) = @_;
372 my ( $template, $loggedinuser, $cookie ) = get_template_and_user(
374 template_name => 'errors/errorpage.tt',
377 authnotrequired => 1,
380 my $admin = C4::Context->preference('KohaAdminEmailAddress');
385 output_with_http_headers $query, $cookie, $template->output, 'html', '404 Not Found';
388 sub parametrized_url {
389 my $url = shift || ''; # ie page.pl?ln={LANG}
390 my $vars = shift || {}; # ie { LANG => en }
392 while ( my ($key,$val) = each %$vars) {
393 my $val_url = URI::Escape::uri_escape_utf8( $val // q{} );
394 $ret =~ s/\{$key\}/$val_url/g;
396 $ret =~ s/\{[^\{]*\}//g; # remove remaining vars
400 END { } # module clean-up code here (global destructor)
409 Koha Development Team <http://koha-community.org/>