2 rcs_id('$Id: PageType.php,v 1.48 2006-10-08 12:38:11 rurban Exp $');
4 Copyright 1999,2000,2001,2002,2003,2004,2005,2006 $ThePhpWikiProgrammingTeam
6 This file is part of PhpWiki.
8 PhpWiki is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 PhpWiki is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with PhpWiki; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 require_once('lib/CachedMarkup.php');
25 /** A cacheable formatted wiki page.
27 class TransformedText extends CacheableMarkup {
30 * @param WikiDB_Page $page
31 * @param string $text The packed page revision content.
32 * @param hash $meta The version meta-data.
33 * @param string $type_override For markup of page using a different
34 * pagetype than that specified in its version meta-data.
36 function TransformedText($page, $text, $meta, $type_override=false) {
39 $pagetype = $type_override;
40 elseif (isset($meta['pagetype']))
41 $pagetype = $meta['pagetype'];
42 $this->_type = PageType::GetPageType($pagetype);
43 $this->CacheableMarkup($this->_type->transform($page, $text, $meta),
53 * A page type descriptor.
55 * Encapsulate information about page types.
57 * Currently the only information encapsulated is how to format
58 * the specific page type. In the future or capabilities may be
59 * added, e.g. the abilities to edit different page types (differently.)
60 * e.g. Support for the javascript htmlarea editor, which can only edit
63 * IMPORTANT NOTE: Since the whole PageType class gets stored (serialized)
64 * as of the cached marked-up page, it is important that the PageType classes
65 * not have large amounts of class data. (No class data is even better.)
69 * Get a page type descriptor.
71 * This is a static member function.
73 * @param string $pagetype Name of the page type.
74 * @return PageType An object which is a subclass of PageType.
76 function GetPageType ($name=false) {
79 $class = "PageType_" . (string)$name;
80 if (class_exists($class))
82 trigger_error(sprintf("PageType '%s' unknown", (string)$name),
84 return new PageType_wikitext;
88 * Get the name of this page type.
90 * @return string Page type name.
93 if (!preg_match('/^PageType_(.+)$/i', get_class($this), $m))
94 trigger_error("Bad class name for formatter(?)", E_USER_ERROR);
99 * Transform page text.
101 * @param WikiDB_Page $page
102 * @param string $text
103 * @param hash $meta Version meta-data
104 * @return XmlContent The transformed page text.
106 function transform(&$page, &$text, $meta) {
107 $fmt_class = 'PageFormatter_' . $this->getName();
108 $formatter = new $fmt_class($page, $meta);
109 return $formatter->format($text);
113 class PageType_wikitext extends PageType {}
114 class PageType_html extends PageType {}
115 class PageType_pdf extends PageType {}
117 class PageType_wikiblog extends PageType {}
118 class PageType_comment extends PageType {}
119 class PageType_wikiforum extends PageType {}
121 /* To prevent from PHP5 Fatal error: Using $this when not in object context */
122 function getInterwikiMap ($pagetext = false) {
125 $map = new PageType_interwikimap($pagetext);
129 class PageType_interwikimap extends PageType
131 function PageType_interwikimap($pagetext = false) {
133 $dbi = $GLOBALS['request']->getDbh();
134 $page = $dbi->getPage(_("InterWikiMap"));
135 if ($page->get('locked')) {
136 $current = $page->getCurrentRevision();
137 $pagetext = $current->getPackedContent();
138 $intermap = $this->_getMapFromWikiText($pagetext);
139 } elseif ($page->exists()) {
140 trigger_error(_("WARNING: InterWikiMap page is unlocked, so not using those links."));
146 $intermap = $this->_getMapFromWikiText($pagetext);
148 if (!$intermap && defined('INTERWIKI_MAP_FILE'))
149 $intermap = $this->_getMapFromFile(INTERWIKI_MAP_FILE);
151 $this->_map = $this->_parseMap($intermap);
152 $this->_regexp = $this->_getRegexp();
155 function GetMap ($pagetext = false) {
156 /*PHP5 Fatal error: Using $this when not in object context */
157 if (empty($this->_map)) {
158 $map = new PageType_interwikimap($pagetext);
165 function getRegexp() {
166 return $this->_regexp;
169 function link ($link, $linktext = false) {
170 list ($moniker, $page) = split (":", $link, 2);
172 if (!isset($this->_map[$moniker])) {
173 return HTML::span(array('class' => 'bad-interwiki'),
174 $linktext ? $linktext : $link);
177 $url = $this->_map[$moniker];
179 // Urlencode page only if it's a query arg.
180 // FIXME: this is a somewhat broken heuristic.
181 $page_enc = strstr($url, '?') ? rawurlencode($page) : $page;
183 if (strstr($url, '%s'))
184 $url = sprintf($url, $page_enc);
188 $link = HTML::a(array('href' => $url));
190 if ($moniker == '') { // ":LinkName"
191 $link->pushContent(HTML::span(array('class' => 'wikipage'), $page));
192 $link->setAttr('class', $linktext ? 'named-wiki' : 'wiki');
194 elseif (!$linktext) {
195 $link->pushContent(PossiblyGlueIconToText('interwiki', "$moniker:"),
196 HTML::span(array('class' => 'wikipage'), $page));
197 $link->setAttr('class', 'interwiki');
200 $link->pushContent(PossiblyGlueIconToText('interwiki', $linktext));
201 $link->setAttr('class', 'named-interwiki');
208 function _parseMap ($text) {
209 if (!preg_match_all("/^\s*(\S+)\s+(.+)$/m",
210 $text, $matches, PREG_SET_ORDER))
213 foreach ($matches as $m) {
217 // Add virtual monikers: "Upload:" "Talk:" "User:", ":"
218 // and expand special variables %u, %b, %d
220 // Upload: Should be expanded later to user-specific upload dirs.
221 // In the Upload plugin, not here: Upload:ReiniUrban/uploaded-file.png
222 if (empty($map['Upload'])) {
223 $map['Upload'] = getUploadDataPath();
225 // User:ReiniUrban => ReiniUrban or Users/ReiniUrban
226 // Can be easily overriden by a customized InterWikiMap:
228 if (empty($map["User"])) {
231 // Talk:UserName => UserName/Discussion
232 // Talk:PageName => PageName/Discussion as default, which might be overridden
233 if (empty($map["Talk"])) {
234 $pagename = $GLOBALS['request']->getArg('pagename');
235 // against PageName/Discussion/Discussion
236 if (string_ends_with($pagename, SUBPAGE_SEPARATOR._("Discussion")))
239 $map["Talk"] = "%s".SUBPAGE_SEPARATOR._("Discussion");
241 if (empty($map[''])) { // Magic syntax: Don't store links ":PageName" as backlink
245 foreach (array('Upload','User','Talk') as $special) {
246 // Expand special variables:
249 // %d => iso8601 DateTime
250 // %s is expanded later to the pagename
251 if (strstr($map[$special], '%u'))
252 $map[$special] = str_replace($map[$special],
254 $GLOBALS['request']->_user->_userid);
255 if (strstr($map[$special], '%b'))
256 $map[$special] = str_replace($map[$special],
259 if (strstr($map[$special], '%d'))
260 $map[$special] = str_replace($map[$special],
262 // such as 2003-01-11T14:03:02+00:00
266 // Maybe add other monikers also - SemanticWeb link predicates
267 // Should they be defined in a RDF? (strict mode)
268 // Or should the SemanticWeb lib add it by itself?
269 // (adding only a subset dependent on the context = model)
273 function _getMapFromWikiText ($pagetext) {
274 if (preg_match('|^<verbatim>\n(.*)^</verbatim>|ms', $pagetext, $m)) {
280 function _getMapFromFile ($filename) {
281 if (defined('WARN_NONPUBLIC_INTERWIKIMAP') and WARN_NONPUBLIC_INTERWIKIMAP) {
282 $error_html = sprintf(_("Loading InterWikiMap from external file %s."),
284 trigger_error( $error_html, E_USER_NOTICE );
286 if (!file_exists($filename)) {
287 $finder = new FileFinder();
288 $filename = $finder->findFile(INTERWIKI_MAP_FILE);
290 @$fd = fopen ($filename, "rb");
291 @$data = fread ($fd, filesize($filename));
297 function _getRegexp () {
299 return '(?:(?!a)a)'; // Never matches.
301 foreach (array_keys($this->_map) as $moniker)
302 $qkeys[] = preg_quote($moniker, '/');
303 return "(?:" . join("|", $qkeys) . ")";
308 /** How to transform text.
310 class PageFormatter {
313 * @param WikiDB_Page $page
314 * @param hash $meta Version meta-data.
316 function PageFormatter(&$page, $meta) {
317 $this->_page = $page;
318 $this->_meta = $meta;
319 if (!empty($meta['markup']))
320 $this->_markup = $meta['markup'];
322 $this->_markup = 2; // dump used old-markup as empty.
323 // FIXME: To be able to restore old plain-backups we should keep markup 1 as default.
324 // New policy: default = new markup (old crashes quite often)
327 function _transform(&$text) {
328 include_once('lib/BlockParser.php');
329 return TransformText($text, $this->_markup);
332 /** Transform the page text.
334 * @param string $text The raw page content (e.g. wiki-text).
335 * @return XmlContent Transformed content.
337 function format($text) {
338 trigger_error("pure virtual", E_USER_ERROR);
342 class PageFormatter_wikitext extends PageFormatter
344 function format(&$text) {
345 return HTML::div(array('class' => 'wikitext'),
346 $this->_transform($text));
350 class PageFormatter_interwikimap extends PageFormatter
352 function format($text) {
353 return HTML::div(array('class' => 'wikitext'),
354 $this->_transform($this->_getHeader($text)),
355 $this->_formatMap($text),
356 $this->_transform($this->_getFooter($text)));
359 function _getHeader($text) {
360 return preg_replace('/<verbatim>.*/s', '', $text);
363 function _getFooter($text) {
364 return preg_replace('@.*?(</verbatim>|\Z)@s', '', $text, 1);
367 function _getMap($pagetext) {
368 $map = getInterwikiMap($pagetext);
372 function _formatMap($pagetext) {
373 $map = $this->_getMap($pagetext);
375 return HTML::p("<No interwiki map found>"); // Shouldn't happen.
377 $mon_attr = array('class' => 'interwiki-moniker');
378 $url_attr = array('class' => 'interwiki-url');
380 $thead = HTML::thead(HTML::tr(HTML::th($mon_attr, _("Moniker")),
381 HTML::th($url_attr, _("InterWiki Address"))));
382 foreach ($map as $moniker => $interurl) {
383 $rows[] = HTML::tr(HTML::td($mon_attr, new Cached_WikiLinkIfKnown($moniker)),
384 HTML::td($url_attr, HTML::tt($interurl)));
387 return HTML::table(array('class' => 'interwiki-map'),
389 HTML::tbody(false, $rows));
393 class FakePageRevision {
394 function FakePageRevision($meta) {
395 $this->_meta = $meta;
399 if (empty($this->_meta[$key]))
401 return $this->_meta[$key];
405 // abstract base class
406 class PageFormatter_attach extends PageFormatter
410 // Display templated contents for wikiblog, comment and wikiforum
411 function format($text) {
412 if (empty($this->type))
413 trigger_error('PageFormatter_attach->format: $type missing');
414 include_once('lib/Template.php');
416 $tokens['CONTENT'] = $this->_transform($text);
417 $tokens['page'] = $this->_page;
418 $tokens['rev'] = new FakePageRevision($this->_meta);
420 $name = new WikiPageName($this->_page->getName());
421 $tokens[$this->prefix."_PARENT"] = $name->getParent();
423 $meta = $this->_meta[$this->type];
424 foreach(array('ctime', 'creator', 'creator_id') as $key)
425 $tokens[$this->prefix . "_" . strtoupper($key)] = $meta[$key];
427 return new Template($this->type, $request, $tokens);
431 class PageFormatter_wikiblog extends PageFormatter_attach {
432 var $type = 'wikiblog', $prefix = "BLOG";
434 class PageFormatter_comment extends PageFormatter_attach {
435 var $type = 'comment', $prefix = "COMMENT";
437 class PageFormatter_wikiforum extends PageFormatter_attach {
438 var $type = 'wikiforum', $prefix = "FORUM";
441 /** wikiabuse for htmlarea editing. not yet used.
443 * Warning! Once a page is edited with a htmlarea like control it is
444 * stored in HTML and cannot be converted back to WikiText as long as
445 * we have no HTML => WikiText or any other interim format (WikiExchangeFormat e.g. XML)
446 * converter. See lib/HtmlParser.php for ongoing work on that.
447 * So it has a viral effect and certain plugins will not work anymore.
448 * But a lot of wikiusers seem to like it.
450 class PageFormatter_html extends PageFormatter
452 function _transform($text) {
455 function format($text) {
461 * FIXME. not yet used
463 class PageFormatter_pdf extends PageFormatter
466 function _transform($text) {
467 include_once('lib/BlockParser.php');
468 return TransformText($text, $this->_markup);
471 // one page or set of pages?
472 // here we try to format only a single page
473 function format($text) {
474 include_once('lib/Template.php');
476 $tokens['page'] = $this->_page;
477 $tokens['CONTENT'] = $this->_transform($text);
478 $pagename = $this->_page->getName();
480 // This is a XmlElement tree, which must be converted to PDF
482 // We can make use of several pdf extensions. This one - fpdf
483 // - is pure php and very easy, but looks quite ugly and has a
484 // terrible interface, as terrible as most of the othes.
485 // The closest to HTML is htmldoc which needs an external cgi
487 // We use a custom HTML->PDF class converter from PHPWebthings
488 // to be able to use templates for PDF.
489 require_once('lib/fpdf.php');
490 require_once('lib/pdf.php');
493 $pdf->SetTitle($pagename);
494 $pdf->SetAuthor($this->_page->get('author'));
495 $pdf->SetCreator(WikiURL($pagename,false,1));
496 $pdf->AliasNbPages();
499 $pdf->SetFont('Times','',12);
500 //$pdf->SetFont('Arial','B',16);
502 // PDF pagelayout from a special template
503 $template = new Template('pdf', $request, $tokens);
504 $pdf->ConvertFromHTML($template);
506 // specify filename, destination
507 $pdf->Output($pagename.".pdf",'I'); // I for stdin or D for download
509 // Output([string name [, string dest]])
513 // $Log: not supported by cvs2svn $
514 // Revision 1.47 2005/08/07 09:14:38 rurban
517 // Revision 1.46 2005/08/06 13:09:33 rurban
518 // allow spaces in interwiki paths, even implicitly. fixes bug #1218733
520 // Revision 1.45 2005/05/06 16:48:41 rurban
521 // support %u, %b, %d expansion for Upload: User: and Talk: interwiki monikers
523 // Revision 1.44 2005/04/23 11:07:34 rurban
526 // Revision 1.43 2005/02/02 20:40:12 rurban
527 // fix Talk: and User: names and links
529 // Revision 1.42 2005/02/02 19:36:56 rurban
532 // Revision 1.41 2005/02/02 19:34:09 rurban
533 // more maps: Talk, User
535 // Revision 1.40 2005/01/31 12:15:08 rurban
536 // avoid some cornercase intermap warning. Thanks to Stefan <sonstiges@bayern-mail.de>
538 // Revision 1.39 2005/01/25 06:59:35 rurban
539 // fix bogus InterWikiMap warning
541 // Revision 1.38 2004/12/26 17:10:44 rurban
542 // just docs or whitespace
544 // Revision 1.37 2004/12/06 19:49:55 rurban
545 // enable action=remove which is undoable and seeable in RecentChanges: ADODB ony for now.
546 // renamed delete_page to purge_page.
547 // enable action=edit&version=-1 to force creation of a new version.
548 // added BABYCART_PATH config
549 // fixed magiqc in adodb.inc.php
550 // and some more docs
557 // c-hanging-comment-ender-p: nil
558 // indent-tabs-mode: nil