source: gsdl/trunk/perllib/plugins/MediaWikiPlug.pm@ 14496

Last change on this file since 14496 was 14496, checked in by anna, 15 years ago

Trimmed contents before column-content div and fixed the css modifications.

  • Property svn:keywords set to Author Date Id Revision
File size: 26.4 KB
Line 
1###########################################################################
2#
3# MediaWikiPlug.pm -- html plugin with extra facilities for wiki page
4#
5# A component of the Greenstone digital library software
6# from the New Zealand Digital Library Project at the
7# University of Waikato, New Zealand.
8#
9# Copyright (C) 1999 New Zealand Digital Library Project
10#
11# This program is free software; you can redistribute it and/or modify
12# it under the terms of the GNU General Public License as published by
13# the Free Software Foundation; either version 2 of the License, or
14# (at your option) any later version.
15#
16# This program is distributed in the hope that it will be useful,
17# but 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.
20#
21# You should have received a copy of the GNU General Public License
22# along with this program; if not, write to the Free Software
23# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24#
25###########################################################################
26# This plugin is to process an HTML file from a MediaWiki website which downloaded by
27# the MediaWikiDownload plug. This plugin will trim MediaWiki functional sections like
28# login, discussion, history, etc. Only the navigation and search section could be preserved.
29# Searchbox will be modified to search the Greenstone collection instead of the website.
30# It also can automatically add the table of contents on the website's Main_Page to the
31# collection's Home page.
32
33package MediaWikiPlug;
34
35use HTMLPlug;
36# use ImagePlug;
37# use File::Copy;
38use unicode;
39
40
41#use strict; # every perl program should have this!
42#no strict 'refs'; # make an exception so we can use variables as filehandles
43
44sub BEGIN {
45 @MediaWikiPlug::ISA = ('HTMLPlug');
46}
47
48my $arguments =
49 [
50 # show the table of contents on collection's home page
51 { 'name' => "show_toc",
52 'desc' => "{MediaWikiPlug.show_toc}",
53 'type' => "flag",
54 'reqd' => "no"},
55 # set to delete the table of contents section on each MediaWiki page
56 { 'name' => "delete_toc",
57 'desc' => "{MediaWikiPlug.delete_toc}",
58 'type' => "flag",
59 'reqd' => "no"},
60 # regexp to match the table of contents
61 { 'name' => "toc_exp",
62 'desc' => "{MediaWikiPlug.toc_exp}",
63 'type' => "regexp",
64 'reqd' => "no",
65 'deft' => "<table([^>]*)id=(\\\"|')toc(\\\"|')(.|\\n)*?</table>\\n" },
66 # set to delete the navigation section
67 { 'name' => "delete_nav",
68 'desc' => "{MediaWikiPlug.delete_nav}",
69 'type' => "flag",
70 'reqd' => "no",
71 'deft' => ""},
72 # regexp to match the navigation section
73 { 'name' => "nav_div_exp",
74 'desc' => "{MediaWikiPlug.nav_div_exp}",
75 'type' => "regexp",
76 'reqd' => "no",
77 'deft' => "<div([^>]*)id=(\\\"|')p-navigation(\\\"|')(.|\\n)*?<\/div>" },
78 # set to delete the searchbox section
79 { 'name' => "delete_searchbox",
80 'desc' => "{MediaWikiPlug.delete_searchbox}",
81 'type' => "flag",
82 'reqd' => "no",
83 'deft' => ""},
84 # regexp to match the searchbox section
85 { 'name' => "searchbox_div_exp",
86 'desc' => "{MediaWikiPlug.searchbox_div_exp}",
87 'type' => "regexp",
88 'reqd' => "no",
89 'deft' => "<div([^>]*)id=(\\\"|')p-search(\\\"|')(.|\\n)*?<\/div>"},
90 # regexp to match title suffix
91 # can't use the title_sub option in HTMLPlug instead
92 # because title_sub always matches from the begining
93 { 'name' => "remove_title_suffix_exp",
94 'desc' => "{MediaWikiPlug.remove_title_suffix_exp}",
95 'type' => "regexp",
96 'reqd' => "no",
97 'deft' => ""}
98 ];
99
100my $options = { 'name' => "MediaWikiPlug",
101 'desc' => "{MediaWikiPlug.desc}",
102 'abstract' => "no",
103 'inherits' => "yes",
104 'args' => $arguments };
105
106sub new {
107 my ($class) = shift (@_);
108 my ($pluginlist,$inputargs,$hashArgOptLists) = @_;
109 push(@$pluginlist, $class);
110
111 if(defined $arguments){ push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});}
112 if(defined $options) { push(@{$hashArgOptLists->{"OptList"}},$options)};
113
114 my $self = new HTMLPlug($pluginlist, $inputargs, $hashArgOptLists);
115 return bless $self, $class;
116}
117
118
119
120sub process {
121 my $self = shift (@_);
122 my ($textref, $pluginfo, $base_dir, $file, $metadata, $doc_obj, $gli) = @_;
123 my $outhandle = $self->{'outhandle'};
124
125 print $outhandle "MediaWikiPlug: processing $file\n" if $self->{'verbosity'} > 1;
126
127 my @head_and_body = split(/<body/i,$$textref);
128 my $head = shift(@head_and_body);
129 my $body_text = join("<body", @head_and_body);
130
131 $head =~ m/<title>(.+)<\/title>/i;
132 my $doctitle = $1 if defined $1;
133
134 if (defined $self->{'metadata_fields'} && $self->{'metadata_fields'}=~ /\S/) {
135 my @doc_properties = split(/<xml>/i,$head);
136 my $doc_heading = shift(@doc_properties);
137 my $rest_doc_properties = join(" ", @doc_properties);
138
139 my @extracted_metadata = split(/<\/xml>/i, $rest_doc_properties);
140 my $extracted_metadata = shift (@extracted_metadata);
141 $self->extract_metadata($extracted_metadata, $metadata, $doc_obj);
142 }
143
144 # set the title here if we haven't found it yet
145 if (!defined $doc_obj->get_metadata_element ($doc_obj->get_top_section(), "Title")) {
146 if (defined $doctitle && $doctitle =~ /\S/) {
147 # remove suffix in title if required
148 my $remove_suffix_exp = $self->{'remove_title_suffix_exp'};
149 if (defined $remove_suffix_exp && $remove_suffix_exp =~ /\S/){
150 $doctitle =~ s/$remove_suffix_exp//i;
151 }
152 $doc_obj->add_utf8_metadata($doc_obj->get_top_section(), "Title", $doctitle);
153 } else {
154 $self->title_fallback($doc_obj,$doc_obj->get_top_section(),$file);
155 }
156 }
157
158 # we are only interested in the column-contents div <div id="column-content">
159 # remove header section, it may contain header images or additional search boxes
160 my $header_exp = "<div([^>]*)id=(\"|')container(\"|')([^>]*)>(.|\\n)*<div([^>]*)id=(\"|')column-content";
161 if($body_text =~ /$header_exp/){
162 $body_text =~ s/$header_exp/<div$1id='container'$4><div$6id='column-content/isg;
163 } else {
164 $header_exp = "(.|\\n)*?<div([^>]*)?id=(\"|')column-content";
165 if($body_text =~ /$header_exp/){
166 $body_text =~ s/$header_exp/<div$2id='column-content/i;
167 }
168 }
169
170 # remove timeline
171 $body_text =~ s/<div([^>]*)class=("|')smwtimeline("|')[\s\S]*?<\/div>//mg;
172
173 # remove extra bits
174 my $extra_bits = "Retrieved from(.+)</a>\"";
175 $body_text =~ s/$extra_bits//isg;
176
177 $body_text =~ s/(<p[^>]*><span[^>]*><o:p>&nbsp;<\/o:p><\/span><\/p>)//isg;
178 $body_text =~ s/(<p[^>]*><o:p>&nbsp;<\/o:p><\/p>)//isg;
179 $body_text =~ s/<!\[if !vml\]>/<![if vml]>/g;
180 $body_text =~ s/(&nbsp;)+/&nbsp;/sg;
181
182 # get rid of the [edit] buttons
183 $body_text =~ s/\[<a([^>]*)>edit<\/a>]//g;
184 # get rid of the last time edit information at the bottom
185 $body_text =~ s/<a href="([^>]*)edit([^>]*)"([^>]*?)>(\w+)<\/a> \d\d:\d\d,([\s|\w]*?)\(PST\)//g;
186 # get rid of the (Redirected from ...)
187 $body_text =~ s/\(Redirected from <a ([^>]*)>(\w|\s)*?<\/a>\)//isg;
188
189 # escape texts macros
190 $body_text =~ s/_([^\s]*)_/_<span>$1<\/span>_/isg;
191 # may change the links, like Greenstone_Documentation_All.html, then change back
192 $body_text =~ s/<a([^>]*)_<span>([^>]*)<\/span>_/<a$1_$2_/isg;
193
194 # define file delimiter for different platforms
195 my $file_delimiter;
196 if ($ENV{'GSDLOS'} =~ /^windows$/i) {
197 $file_delimiter = "\\";
198 } else {
199 $file_delimiter = "/";
200 }
201
202 # IMPORTANT: different delimiter for $base_dir and $file
203 # $base_dir use forward slash for both windows and linux
204 # print "\nbase_dir : $base_dir\n\n"; # windows: C:/Program Files/Greenstone2.73/collect/wiki/import
205 # linux: /research/lh92/greenstone/greenstone2.73/collect/wiki/import
206 # $file use different delimiters : forward slash for linux; backward slash for windows
207 # print "\nfile : $file\n\n"; # windows: greenstone.sourceforge.net\wiki\index.php\Access_Processing_using_DBPlug.html
208 # linux: greenstone.sourceforge.net/wiki/index.php/Using_GreenstoneWiki.html
209
210 # get the base url for the MediaWiki website
211 my $safe_delimiter = &safe_escape_regexp($file_delimiter);
212 my @url_dirs=split($safe_delimiter, $file);
213 my $url_base = $url_dirs[0];
214
215 # Re-check css files associated with MediaWiki pages
216 if(defined $base_dir && $base_dir ne ""){
217 my @css_files;
218 my $css_file_count = 0;
219
220 # find all the stylesheets imported with @import statement
221 while($head =~ m"<style type=\"text/css\"(.+)import \"(.+)\""ig){
222 $css_files[$css_file_count++] = $2 if defined $2;
223 }
224
225 # download the stylesheets if we haven't downloaded them yet
226 # add prefix to each style elmement, comment out the body element
227 # and copy the files to collection's images folder
228 for ($css_file_count = 0; $css_file_count < scalar(@css_files); $css_file_count++) {
229
230 my $css_file = $css_files[$css_file_count];
231
232 # remove prefix gli/cache directory
233 $css_file =~ s/^(.+)gli(\\|\/)cache(\\|\/)//i;
234
235 # change the \ delimiter in $css_file to / for consistency
236 $css_file =~ s/\\/\//isg;
237 if($css_file !~ /$url_base/) {
238 $css_file = $url_base . $css_file;
239 }
240
241 # trim the ? mark append to the end of a stylesheet
242 $css_file =~ s/\?(.+)$//isg;
243
244 my $css_file_path = &util::filename_cat($base_dir, $css_file);
245
246 # do nothing if we have already downloaded the css files
247 if (! -e $css_file_path) {
248
249 # check the stylesheet's directory in the import folder
250 # if the directory doesn't exist, create one
251 my @dirs = split(/\//i,$css_file);
252 my $path_check = "$base_dir/";
253 for (my $i = 0; $i < (scalar(@dirs)-1); $i++) {
254 $path_check .= $dirs[$i] . "/";
255 mkdir($path_check) if (! -d $path_check );
256 }
257
258 # NOTE: wget needs configuration to directly access Internet
259 # These files should already downloaded if we used the MediaWikiDownload
260 # downloading
261 $css_file = "http://$css_file";
262 print "\ndownloading : " . $css_file . "\n\n";
263 system("wget", "--non-verbose", "$css_file", "--output-document=$css_file_path");
264 if ($? != 0) {
265 print "[ERROR] Download Failed! Make sure WGet connects to Internet directly \n";
266 print "[ERROR] OR ues the MediaWikiDownload in the GLI DownloadPanel to download from a MediaWiki website\n";
267 unlink("$css_file_path");
268 }
269 } # done with download
270
271 # add a prefix "#wikispecificstyle" to each element
272 # because we want to preserve this website's formats and don't want to mess up with Greenstone formats
273 # so we will wrap the web page with a div with id = wikispecificstyle
274 my $css_content;
275 if(open(INPUT, "<$css_file_path")){
276 while(my $line = <INPUT>){
277 # comment out the body element because we change the body to div
278 $line =~ s/^(\s*)body(\s*){(\s*)$/$1\/*body$2*\/{$3/isg;
279
280 if($line =~ m/^(.+)\{/i || $line =~ m/^(\s)*#/i){
281 if($line !~ m/wikispecificstyle/i){
282 $line = "#wikispecificstyle " . $line;
283 }
284 }
285
286 $css_content .= $line;
287 }
288 close(INPUT);
289 open(OUTPUT, ">$css_file_path");
290 print OUTPUT $css_content;
291 close(OUTPUT);
292 }
293
294 # Copy the modified stylesheets to collection's images folder
295 # for future customization
296 my $images_dir = $base_dir;
297 $images_dir =~ s/import$/images/;
298 $css_file =~ m/(.*)\/(.*)$/;
299 $images_dir = &util::filename_cat($images_dir, $2);
300
301 if(open(OUTPUT, ">$images_dir")){
302 print OUTPUT $css_content;
303 close(OUTPUT);
304 }
305 }
306 }
307
308
309 # by default, only preserve navigation box and search box
310 # others like toolbox, interaction, languages box, will be removed
311
312 # extract the larger part -- footer section
313 my $print_footer = "<div class=\"printfooter\">(.|\n)+</body>";
314 $body_text =~ /$print_footer/;
315 my $footer = "";
316 $footer = $& if defined $&;
317 $footer =~ s/<\/body>//isg;
318
319 # trim the comments first
320 $footer =~ s/<!--[\s\S]*?--[ \t\n\r]*>//isg;
321
322 # contain sections that are to be preserved
323 my $preserve_sections = "";
324
325 # process the navigation section
326 my $nav_match_exp = "<div([^>]*)id=(\"|')p-navigation(\"|')(.|\n)*?<\/div>";
327 if (defined $self->{'nav_div_exp'}) {
328 $nav_match_exp = $self->{'nav_div_exp'} if ($self->{'nav_div_exp'} =~ /\S/) ;
329 }
330
331 if (defined $self->{'delete_nav'} && ($self->{'delete_nav'} eq "1")) {
332 # do nothing
333 } else {
334 if ($footer =~ m/$nav_match_exp/ig) {
335 $preserve_sections = $& ;
336 } else {
337 print $outhandle "Can't find the navigation section with : $nav_match_exp\n";
338 }
339 # if($preserve_sections =~/\S/){
340 # $preserve_sections .= "</div>";
341 # }
342 }
343
344 # process the searchbox section
345 my $searchbox_exp = "<div([^>]*)id=(\"|')p-search(\"|')(.|\\n)*?<\/div>";
346 if(defined $self->{'searchbox_div_exp'}) {
347 $searchbox_exp = $self->{'searchbox_div_exp'} if ($self->{'searchbox_div_exp'} =~ /\S/);
348 }
349
350 my $searchbox_section = "";
351 $footer =~ m/$searchbox_exp/ig;
352 $searchbox_section = $& if defined $&;
353
354 # make the searchbox form work in Greenstone
355 if($searchbox_section =~ /\S/){
356 # replace action
357 $searchbox_section =~ s/action="([^>]*)"/action="_gwcgi_"/isg;
358
359 # remove buttons
360 $searchbox_section =~ s/name="search"/name="q"/isg;
361 $searchbox_section =~ s/name="go"//isg;
362 $searchbox_section =~ s/name="fulltext"//isg;
363
364 # get collection name from $base_dir for c param
365 $base_dir =~ m/\/collect\/(.+)\//i;
366 my $collection_name = "";
367 $collection_name = $1 if defined $1;
368
369 # add Greenstone search params
370 my $hidden_params = "<input type=\"hidden\" name=\"a\" value=\"q\"/>\n"
371 ."<input type=\"hidden\" name=\"c\" value=\"$collection_name\"/>\n";
372 # ."<input type=\"hidden\" name=\"fqf\" value=\"TX\"/>\n"
373 # ."<input type=\"hidden\" name=\"r\" value=\"1\">\n";
374
375 $searchbox_section =~ s/<form([^>]*)>/<form$1>\n$hidden_params/isg;
376
377 # $searchbox_section .= "</div>";
378 } else {
379 print $outhandle "Can't find the searchbox section with : $searchbox_section\n";
380 }
381
382 # either delete or replace the searchbox
383 if(defined $self->{'delete_searchbox'} && $self->{'delete_searchbox'} eq "1") {
384 # do nothing
385 } else {
386 $preserve_sections .= "\n$searchbox_section\n";
387 }
388
389 if($preserve_sections ne ""){
390 $preserve_sections = "<div id=\"column-one\">\n" . $preserve_sections . "\n</div>\n";
391 }
392 $preserve_sections = "</div></div></div>\n" . $preserve_sections . "\n</body>";
393
394 $body_text =~ s/$print_footer/$preserve_sections/isg;
395
396
397 # delete other forms in the page
398 my @forms;
399 my $form_count = 0;
400 while($body_text =~ m/<form([^>]*)name=("|')([^>"']*)?("|')/isg){
401 next if($3 eq "searchform");
402 $forms[$form_count++] = $&;
403 }
404 foreach my $form (@forms) {
405 $body_text =~ s/$form[\s\S]*?<\/form>//m;
406 }
407
408 # process links.
409 # because current WGET 1.10 the -k and -E option doesn't work together
410 # need to 'manually' convert the links to relative links
411 # Dealing with 3 types of links:
412 # -- outgoing links
413 # -- if we have downloaded the target files, link to the internal version (relative link)
414 # -- otherwise, link to the external version (absolute links)
415 # -- in-page links (relative link)
416
417 # NOTE: (important)
418 # must use the MediaWikiDownload in GLI Download Panel to download files from a MediaWiki website
419 # otherwise, the internal links may have problems
420
421 # remove the title attribute of <a> tag
422 $body_text =~ s/<a([^>]*)title="(.*?)"/<a$1/isg;
423
424 # extract all the links
425 my @links;
426 my $link_count = 0;
427 while($body_text =~ m/(href|src)="([^>\s]*)$url_base\/([^>\s]*)"/ig){
428 $links[$link_count++] = "$1=\"$2$url_base/$3\"";
429 }
430
431 foreach my $cur_link (@links) {
432 # escape greedy match + character
433 $cur_link =~ s/\+/\\+/isg;
434
435 $cur_link =~ m/(.+)"([^>]*)$url_base\/([^>\s]*)"/;
436 my $external_file_path = "$1\"http://$url_base/$3\"";
437
438 $body_text =~ s/$cur_link/$external_file_path/i;
439 }
440
441 # tag links to new wiki pages as red
442 $body_text =~ s/<a([^>]*)class="new"([^>]*)>/<a$1style="color:red"$2)>/gi;
443
444 # tag links to pages external of the MediaWiki website as blue
445 $body_text =~ s/<a([^>]*)class='external text'([^>]*)>/<a$1style="color:blue"$2)>/gi;
446
447
448 # process the table-of-contents section
449 # if 'show_toc' is set, add Main_Page's toc to the collection's About page, change extra.dm file
450 # 1. read _content_ macro from about.dm
451 # 2. append the toc, change all links to the Greenstone internal format for relative links
452 # 3. write to the extra.dm
453 # TODO: we assume the _about:content_ hasn't been specified before
454 # so needs to add function to handle when the macro is already in the extra.dm
455 if($self->{'show_toc'}==1 && $file =~ m/Main_Page.(html|htm)$/){
456
457 # extract toc of the Main_Page
458 my $mainpage_toc = "";
459 my $toc_exp = "<table([^>]*)id=(\"|')toc(\"|')(.|\\n)*</table>\\n";
460 if($self->{'toc_exp'} =~ /\S/){
461 $toc_exp = $self->{'toc_exp'};
462 }
463 if($body_text =~ /$toc_exp/){
464 $mainpage_toc = $&;
465 }
466
467 if($mainpage_toc =~ /\S/) {
468
469 # change the in-page links to relative links, for example, change <a href="#section1"> to
470 # <a href="_httpquery_&a=extlink&rl=1&href=http://www.mediawikisite.com/Main_Page.html#section1">
471 my $file_url_format = $file;
472 $file_url_format =~ s/\\/\//isg;
473 $file_url_format = "http://" . $file_url_format;
474
475 # encode as URL, otherwise doesn't work on Windows
476 $file_url_format =~ s/([^A-Za-z0-9])/sprintf("%%%02X", ord($1))/seg;
477 $mainpage_toc =~ s/<a href="([^>"#]*)#([^>"]*)"/<a href="_httpquery_&a=extlink&rl=1&href=$file_url_format#$2"/isg;
478
479
480 # read the collection's extra.dm
481 my $macro_path = $base_dir;
482 $macro_path =~ s/import$/macros/;
483 my $extradm_file = &util::filename_cat($macro_path, "extra.dm");
484
485 my $extra_dm = "";
486 if(open(INPUT, "<$extradm_file")){
487 while(my $line = <INPUT>){
488 $extra_dm .= $line;
489 }
490 } else {
491 print $outhandle "can't open file $extradm_file\n";
492 }
493 close(INPUT);
494
495 # check whether we have changed the macros
496 my @packages = split("package ", $extra_dm);
497 my $about_package = "";
498 foreach my $package (@packages) {
499 $about_package = "package " . $package if($package =~ /^about/);
500 }
501
502 my $update_extra_dm = 0;
503
504 if( $about_package =~ /\S/ && $about_package =~ m/_content_(\s*){/ && $about_package =~ m/$mainpage_toc/){
505 print $outhandle "_content_ macro already changed!!!!\n";
506 }
507 # if extra.dm doesn't have an "about package"
508 elsif ($about_package !~ /\S/) {
509 # read _content_ macro from $GSDLHOME/macros/about.dm file
510 my $global_about_package = &read_content_from_about_dm();
511
512 # create the extra _content_ macro for this collection
513 # add the original content of the _content_ macro
514 $global_about_package =~ m/{(.|\n)*<\/div>\n\n/;
515
516 # append the new about package to extra.dm
517 $extra_dm .= "\n\npackage about\n_content_$&\n\n";
518 $extra_dm .= "<div class=\"section\">\n$mainpage_toc\n</div>\n</div>\n}";
519
520 $update_extra_dm = 1;
521 }
522 # the about package exists, but either doesn't have the _content_ macro or
523 # the _content_ macro doesn't contain the toc
524 else {
525 # check if there is a content macro
526 my $content_macro_existed = 0;
527 $content_macro_existed = ($about_package =~ /(\s*|\n)_content_(\s*){/);
528
529 # if there is one
530 # append a new section div for toc to the end of the document section
531 if($content_macro_existed ==1) {
532 $about_package =~ /(\s*|\n)_content_(\s*){(.|\n)*?}/;
533 my $content_macro = $&;
534 my $new_content_macro = $content_macro;
535 $new_content_macro =~ s/<div[^>]*class="document">(.|\n)*<\/div>/<div$1class="document">$2\n\n<div class="section">\n$mainpage_toc\n<\/div>\n<\/div>/;
536 $extra_dm =~ s/$content_macro/$new_content_macro/mg;
537 }
538 # otherwise, append _content_ macro to the about package
539 else {
540 my $new_about_package = $about_package;
541 $content_macro = &read_content_from_about_dm();
542 $content_macro =~ m/{(.|\n)*<\/div>\n\n/;
543
544 $new_about_package .= "\n\n_content_$&\n\n";
545 $new_about_package .= "<div class=\"section\">\n$mainpage_toc\n</div>\n</div>\n}";
546 $extra_dm =~ s/$about_package/$new_about_package/mg;
547 }
548
549 # either the case, we need to update the extra.dm
550 $update_extra_dm = 1;
551 }
552
553 if($update_extra_dm==1){
554 # write to the extra.dm file of the collection
555 if (open(OUTPUT, ">$extradm_file")) {
556 print OUTPUT $extra_dm;
557 } else {
558 print "can't open $extradm_file\n";
559 }
560 close(OUTPUT);
561 }
562 } else {
563 print $outhandle "Main_Page doesn't have a table-of-contents section\n";
564 }
565 }
566
567 # If delete_toc is set, remove toc and tof contents.
568 if (defined $self->{'delete_toc'} && ($self->{'delete_toc'} == 1)){
569 if (defined $self->{'toc_exp'} && $self->{'toc_exp'} =~ /\S/){
570 # print "\nit matches toc_exp !!\n" if $body_text =~ /$self->{'toc_exp'}/;
571 if ($body_text =~ /$self->{'toc_exp'}/) {
572 $body_text =~ s/$self->{'toc_exp'}//i;
573 }
574 }
575 }
576
577 $$textref = "<body" . $body_text;
578
579 # Wrap the whole page with <div id="wikispecificstyle"></div>
580 # keep the style of this website and don't mess up with the Greenstone styles
581 $$textref =~ s/<body([^>]*)>/$&\n<div id="wikispecificstyle">\n/is;
582 $$textref =~ s/<\/body>/<\/div><\/body>/is;
583
584 $self->SUPER::process(@_);
585
586 return 1;
587}
588
589
590sub extract_metadata
591{
592 my $self = shift (@_);
593 my ($textref, $metadata, $doc_obj) = @_;
594 my $outhandle = $self->{'outhandle'};
595
596 return if (!defined $textref);
597
598 # metadata fields to extract/save. 'key' is the (lowercase) name of the
599 # html meta, 'value' is the metadata name for greenstone to use
600 my %find_fields = ();
601 my ($tag,$value);
602
603 my $orig_field = "";
604 foreach my $field (split /,/, $self->{'metadata_fields'}) {
605 # support tag<tagname>
606 if ($field =~ /^(.*?)<(.*?)>$/) {
607 # "$2" is the user's preferred gs metadata name
608 $find_fields{lc($1)}=$2; # lc = lowercase
609 $orig_field = $1;
610 } else { # no <tagname> for mapping
611 # "$field" is the user's preferred gs metadata name
612 $find_fields{lc($field)}=$field; # lc = lowercase
613 $orig_field = $field;
614 }
615
616 if ($textref =~ m/<o:$orig_field>(.*)<\/o:$orig_field>/i){
617 $tag = $orig_field;
618 $value = $1;
619 if (!defined $value || !defined $tag){
620 #print $outhandle "StructuredHTMLPlug: can't find VALUE in \"$tag\"\n";
621 next;
622 } else {
623 # clean up and add
624 chomp($value); # remove trailing \n, if any
625 $tag = $find_fields{lc($tag)};
626 #print $outhandle " extracted \"$tag\" metadata \"$value\"\n"
627 # if ($self->{'verbosity'} > 2);
628 $doc_obj->add_utf8_metadata($doc_obj->get_top_section(), $tag, $value);
629 }
630 }
631 }
632}
633
634sub safe_escape_regexp
635{
636 my $regexp = shift (@_);
637
638 # if ($ENV{'GSDLOS'} =~ /^windows$/i) {
639 $regexp =~ s/\\/\\\\/isg;
640 #} else {
641 $regexp =~ s/\//\\\//isg;
642 #}
643 return $regexp;
644}
645
646sub read_content_from_about_dm
647{
648 my $about_macro_file = &util::filename_cat($ENV{'GSDLHOME'}, "macros", "about.dm");
649 my $about_page_content = "";
650 if (open(INPUT, "<$about_macro_file")){
651 while (my $line=<INPUT>){
652 $about_page_content .= $line;
653 }
654 } else {
655 print $outhandle "can't open file $about_macro_file\n";
656 }
657 close(INPUT);
658
659 # extract the _content_ macro
660 $about_page_content =~ m/_content_ {(.|\n)*<\/div>\n\n<\/div>\n}/i;
661 $about_page_content = $&;
662
663 return $about_page_content;
664}
665
6661;
Note: See TracBrowser for help on using the repository browser.