2 rcs_id('$Id: PageType.php,v 1.36 2004-11-28 20:42:18 rurban Exp $');
4 Copyright 1999,2000,2001,2002,2003,2004 $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) {
123 $map = new PageType_interwikimap($pagetext);
127 class PageType_interwikimap extends PageType
129 function PageType_interwikimap($pagetext = false) {
131 $dbi = $GLOBALS['request']->getDbh();
132 $page = $dbi->getPage(_("InterWikiMap"));
133 if ($page->get('locked')) {
134 $current = $page->getCurrentRevision();
135 $pagetext = $current->getPackedContent();
136 $intermap = $this->_getMapFromWikiText($pagetext);
138 trigger_error(_("WARNING: InterWikiMap page is unlocked, so not using those links."));
142 $intermap = $this->_getMapFromWikiText($pagetext);
144 if (!$intermap && defined('INTERWIKI_MAP_FILE'))
145 $intermap = $this->_getMapFromFile(INTERWIKI_MAP_FILE);
147 $this->_map = $this->_parseMap($intermap);
148 $this->_regexp = $this->_getRegexp();
151 function GetMap ($pagetext = false) {
152 /*PHP5 Fatal error: Using $this when not in object context */
153 if (empty($this->_map)) {
154 $map = new PageType_interwikimap($pagetext);
161 function getRegexp() {
162 return $this->_regexp;
165 function link ($link, $linktext = false) {
166 list ($moniker, $page) = split (":", $link, 2);
168 if (!isset($this->_map[$moniker])) {
169 return HTML::span(array('class' => 'bad-interwiki'),
170 $linktext ? $linktext : $link);
173 $url = $this->_map[$moniker];
175 // Urlencode page only if it's a query arg.
176 // FIXME: this is a somewhat broken heuristic.
177 $page_enc = strstr($url, '?') ? rawurlencode($page) : $page;
179 if (strstr($url, '%s'))
180 $url = sprintf($url, $page_enc);
184 $link = HTML::a(array('href' => $url));
187 $link->pushContent(PossiblyGlueIconToText('interwiki', "$moniker:"),
188 HTML::span(array('class' => 'wikipage'), $page));
189 $link->setAttr('class', 'interwiki');
192 $link->pushContent(PossiblyGlueIconToText('interwiki', $linktext));
193 $link->setAttr('class', 'named-interwiki');
200 function _parseMap ($text) {
201 if (!preg_match_all("/^\s*(\S+)\s+(\S+)/m",
202 $text, $matches, PREG_SET_ORDER))
204 foreach ($matches as $m) {
207 // add virtual "Upload:" moniker
208 if (empty($map['Upload'])) $map['Upload'] = getUploadDataPath();
210 // maybe add other monikers also (SemanticWeb link predicates?)
211 // Should they be defined in a RDF? (strict mode)
212 // Or should the SemanticWeb lib add it by itself?
213 // (adding only a subset dependent on the context = model)
217 function _getMapFromWikiText ($pagetext) {
218 if (preg_match('|^<verbatim>\n(.*)^</verbatim>|ms', $pagetext, $m)) {
224 function _getMapFromFile ($filename) {
225 if (defined('WARN_NONPUBLIC_INTERWIKIMAP') and WARN_NONPUBLIC_INTERWIKIMAP) {
226 $error_html = sprintf(_("Loading InterWikiMap from external file %s."), $filename);
227 trigger_error( $error_html, E_USER_NOTICE );
229 if (!file_exists($filename)) {
230 $finder = new FileFinder();
231 $filename = $finder->findFile(INTERWIKI_MAP_FILE);
233 @$fd = fopen ($filename, "rb");
234 @$data = fread ($fd, filesize($filename));
240 function _getRegexp () {
242 return '(?:(?!a)a)'; // Never matches.
244 foreach (array_keys($this->_map) as $moniker)
245 $qkeys[] = preg_quote($moniker, '/');
246 return "(?:" . join("|", $qkeys) . ")";
251 /** How to transform text.
253 class PageFormatter {
256 * @param WikiDB_Page $page
257 * @param hash $meta Version meta-data.
259 function PageFormatter(&$page, $meta) {
260 $this->_page = $page;
261 $this->_meta = $meta;
262 if (!empty($meta['markup']))
263 $this->_markup = $meta['markup'];
265 $this->_markup = 1; // dump used old-markup as empty.
266 // to be able to restore it we must keep markup 1 as default.
267 // new policy: default = new markup (old crashes quite often)
270 function _transform(&$text) {
271 include_once('lib/BlockParser.php');
272 return TransformText($text, $this->_markup);
275 /** Transform the page text.
277 * @param string $text The raw page content (e.g. wiki-text).
278 * @return XmlContent Transformed content.
280 function format($text) {
281 trigger_error("pure virtual", E_USER_ERROR);
285 class PageFormatter_wikitext extends PageFormatter
287 function format(&$text) {
288 return HTML::div(array('class' => 'wikitext'),
289 $this->_transform($text));
293 class PageFormatter_interwikimap extends PageFormatter
295 function format($text) {
296 return HTML::div(array('class' => 'wikitext'),
297 $this->_transform($this->_getHeader($text)),
298 $this->_formatMap($text),
299 $this->_transform($this->_getFooter($text)));
302 function _getHeader($text) {
303 return preg_replace('/<verbatim>.*/s', '', $text);
306 function _getFooter($text) {
307 return preg_replace('@.*?(</verbatim>|\Z)@s', '', $text, 1);
310 function _getMap($pagetext) {
311 $map = getInterwikiMap($pagetext);
315 function _formatMap($pagetext) {
316 $map = $this->_getMap($pagetext);
318 return HTML::p("<No interwiki map found>"); // Shouldn't happen.
320 $mon_attr = array('class' => 'interwiki-moniker');
321 $url_attr = array('class' => 'interwiki-url');
323 $thead = HTML::thead(HTML::tr(HTML::th($mon_attr, _("Moniker")),
324 HTML::th($url_attr, _("InterWiki Address"))));
325 foreach ($map as $moniker => $interurl) {
326 $rows[] = HTML::tr(HTML::td($mon_attr, new Cached_WikiLinkIfKnown($moniker)),
327 HTML::td($url_attr, HTML::tt($interurl)));
330 return HTML::table(array('class' => 'interwiki-map'),
332 HTML::tbody(false, $rows));
336 class FakePageRevision {
337 function FakePageRevision($meta) {
338 $this->_meta = $meta;
342 if (empty($this->_meta[$key]))
344 return $this->_meta[$key];
348 class PageFormatter_attach extends PageFormatter
352 // Display templated contents for wikiblog, comment and wikiforum
353 function format($text) {
354 if (empty($this->type))
355 trigger_error('PageFormatter_attach->format: $type missing');
356 include_once('lib/Template.php');
358 $tokens['CONTENT'] = $this->_transform($text);
359 $tokens['page'] = $this->_page;
360 $tokens['rev'] = new FakePageRevision($this->_meta);
362 $name = new WikiPageName($this->_page->getName());
363 $tokens[$this->prefix."_PARENT"] = $name->getParent();
365 $meta = $this->_meta[$this->type];
366 foreach(array('ctime', 'creator', 'creator_id') as $key)
367 $tokens[$this->prefix . "_" . strtoupper($key)] = $meta[$key];
369 return new Template($this->type, $request, $tokens);
373 class PageFormatter_wikiblog extends PageFormatter_attach {
374 var $type = 'wikiblog', $prefix = "BLOG";
376 class PageFormatter_comment extends PageFormatter_attach {
377 var $type = 'comment', $prefix = "COMMENT";
379 class PageFormatter_wikiforum extends PageFormatter_attach {
380 var $type = 'wikiforum', $prefix = "FORUM";
383 /** wikiabuse for htmlarea editing. not yet used.
385 * Warning! Once a page is edited with a htmlarea like control it is
386 * stored in HTML and cannot be converted back to WikiText as long as
387 * we have no HTML => WikiText or any other interim format (WikiExchangeFormat e.g. Xml)
388 * converter. So it has a viral effect and certain plugins will not work anymore.
389 * But a lot of wikiusers seem to like it.
391 class PageFormatter_html extends PageFormatter
393 function _transform($text) {
396 function format($text) {
402 * FIXME. not yet used
404 class PageFormatter_pdf extends PageFormatter
407 function _transform($text) {
408 include_once('lib/BlockParser.php');
409 return TransformText($text, $this->_markup);
412 // one page or set of pages?
413 // here we try to format only a single page
414 function format($text) {
415 include_once('lib/Template.php');
417 $tokens['page'] = $this->_page;
418 $tokens['CONTENT'] = $this->_transform($text);
419 $pagename = $this->_page->getName();
421 // This is a XmlElement tree, which must be converted to PDF
423 // We can make use of several pdf extensions. This one - fpdf
424 // - is pure php and very easy, but looks quite ugly and has a
425 // terrible interface, as terrible as most of the othes.
426 // The closest to HTML is htmldoc which needs an external cgi
428 // We use a custom HTML->PDF class converter from PHPWebthings
429 // to be able to use templates for PDF.
430 require_once('lib/fpdf.php');
431 require_once('lib/pdf.php');
434 $pdf->SetTitle($pagename);
435 $pdf->SetAuthor($this->_page->get('author'));
436 $pdf->SetCreator(WikiURL($pagename,false,1));
437 $pdf->AliasNbPages();
440 $pdf->SetFont('Times','',12);
441 //$pdf->SetFont('Arial','B',16);
443 // PDF pagelayout from a special template
444 $template = new Template('pdf', $request, $tokens);
445 $pdf->ConvertFromHTML($template);
447 // specify filename, destination
448 $pdf->Output($pagename.".pdf",'I'); // I for stdin or D for download
450 // Output([string name [, string dest]])
459 // c-hanging-comment-ender-p: nil
460 // indent-tabs-mode: nil