2 rcs_id('$Id: WikiDB.php,v 1.114 2004-12-09 22:24:44 rurban Exp $');
4 require_once('lib/PageType.php');
7 * The classes in the file define the interface to the
11 * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
16 * Force the creation of a new revision.
17 * @see WikiDB_Page::createRevision()
19 if (!defined('WIKIDB_FORCE_CREATE'))
20 define('WIKIDB_FORCE_CREATE', -1);
23 * Abstract base class for the database used by PhpWiki.
25 * A <tt>WikiDB</tt> is a container for <tt>WikiDB_Page</tt>s which in
26 * turn contain <tt>WikiDB_PageRevision</tt>s.
28 * Conceptually a <tt>WikiDB</tt> contains all possible
29 * <tt>WikiDB_Page</tt>s, whether they have been initialized or not.
30 * Since all possible pages are already contained in a WikiDB, a call
31 * to WikiDB::getPage() will never fail (barring bugs and
32 * e.g. filesystem or SQL database problems.)
34 * Also each <tt>WikiDB_Page</tt> always contains at least one
35 * <tt>WikiDB_PageRevision</tt>: the default content (e.g. "Describe
36 * [PageName] here."). This default content has a version number of
39 * <tt>WikiDB_PageRevision</tt>s have read-only semantics. One can
40 * only create new revisions or delete old ones --- one can not modify
41 * an existing revision.
45 * Open a WikiDB database.
47 * This is a static member function. This function inspects its
48 * arguments to determine the proper subclass of WikiDB to
49 * instantiate, and then it instantiates it.
53 * @param hash $dbparams Database configuration parameters.
54 * Some pertinent paramters are:
57 * <dd> The back-end type. Current supported types are:
60 * <dd> Generic SQL backend based on the PEAR/DB database abstraction
61 * library. (More stable and conservative)
63 * <dd> Another generic SQL backend. (More current features are tested here. Much faster)
65 * <dd> Dba based backend. The default and by far the fastest.
73 * <dd> (Used by the SQL and ADODB backends.)
74 * The DSN specifying which database to connect to.
77 * <dd> Prefix to be prepended to database tables (and file names).
80 * <dd> (Used by the dba backend.)
81 * Which directory db files reside in.
84 * <dd> Used only by the dba backend so far.
85 * And: When optimizing mysql it closes timed out mysql processes.
86 * otherwise only used for dba: Timeout in seconds for opening (and
87 * obtaining lock) on the dbm file.
90 * <dd> (Used by the dba backend.)
92 * Which dba handler to use. Good choices are probably either
96 * @return WikiDB A WikiDB object.
98 function open ($dbparams) {
99 $dbtype = $dbparams{'dbtype'};
100 include_once("lib/WikiDB/$dbtype.php");
102 $class = 'WikiDB_' . $dbtype;
103 return new $class ($dbparams);
113 function WikiDB (&$backend, $dbparams) {
114 $this->_backend = &$backend;
115 // don't do the following with the auth_dsn!
116 if (isset($dbparams['auth_dsn'])) return;
118 $this->_cache = new WikiDB_cache($backend);
119 $GLOBALS['request']->_dbi = $this;
121 // If the database doesn't yet have a timestamp, initialize it now.
122 if ($this->get('_timestamp') === false)
125 //FIXME: devel checking.
126 //$this->_backend->check();
130 * Get any user-level warnings about this WikiDB.
132 * Some back-ends, e.g. by default create there data files in the
133 * global /tmp directory. We would like to warn the user when this
134 * happens (since /tmp files tend to get wiped periodically.)
135 * Warnings such as these may be communicated from specific
136 * back-ends through this method.
140 * @return string A warning message (or <tt>false</tt> if there is
143 function genericWarnings() {
148 * Close database connection.
150 * The database may no longer be used after it is closed.
152 * Closing a WikiDB invalidates all <tt>WikiDB_Page</tt>s,
153 * <tt>WikiDB_PageRevision</tt>s and <tt>WikiDB_PageIterator</tt>s
154 * which have been obtained from it.
159 $this->_backend->close();
160 $this->_cache->close();
164 * Get a WikiDB_Page from a WikiDB.
166 * A {@link WikiDB} consists of the (infinite) set of all possible pages,
167 * therefore this method never fails.
170 * @param string $pagename Which page to get.
171 * @return WikiDB_Page The requested WikiDB_Page.
173 function getPage($pagename) {
174 static $error_displayed = false;
175 $pagename = (string) $pagename;
177 if ($pagename === '') {
178 if ($error_displayed) return false;
179 $error_displayed = true;
180 if (function_exists("xdebug_get_function_stack"))
181 var_dump(xdebug_get_function_stack());
182 trigger_error("empty pagename", E_USER_WARNING);
186 assert($pagename != '');
188 return new WikiDB_Page($this, $pagename);
192 * Determine whether page exists (in non-default form).
195 * $is_page = $dbi->isWikiPage($pagename);
199 * $page = $dbi->getPage($pagename);
200 * $current = $page->getCurrentRevision();
201 * $is_page = ! $current->hasDefaultContents();
203 * however isWikiPage may be implemented in a more efficient
204 * manner in certain back-ends.
208 * @param string $pagename string Which page to check.
210 * @return boolean True if the page actually exists with
211 * non-default contents in the WikiDataBase.
213 function isWikiPage ($pagename) {
214 $page = $this->getPage($pagename);
215 return $page->exists();
219 * Delete page from the WikiDB.
221 * Deletes the page from the WikiDB with the possibility to revert and diff.
222 * //Also resets all page meta-data to the default values.
224 * Note: purgePage() effectively destroys all revisions of the page from the WikiDB.
228 * @param string $pagename Name of page to delete.
230 function deletePage($pagename) {
231 // don't create empty revisions of already purged pages.
232 if ($this->_backend->get_latest_version($pagename))
233 $result = $this->_cache->delete_page($pagename);
237 /* Generate notification emails? */
238 if (! $this->isWikiPage($pagename) ) {
239 $notify = $this->get('notify');
240 if (!empty($notify) and is_array($notify)) {
241 //TODO: deferr it (quite a massive load if you remove some pages).
242 //TODO: notification class which catches all changes,
243 // and decides at the end of the request what to mail. (type, page, who, what, users, emails)
244 // could be used for PageModeration and RSS2 Cloud xml-rpc also.
245 $page = new WikiDB_Page($this, $pagename);
246 list($emails, $userids) = $page->getPageChangeEmails($notify);
247 if (!empty($emails)) {
248 $editedby = sprintf(_("Removed by: %s"), $GLOBALS['request']->_user->getId()); // Todo: host_id
249 $emails = join(',', $emails);
250 $subject = sprintf(_("Page removed %s"), urlencode($pagename));
251 if (mail($emails,"[".WIKI_NAME."] ".$subject,
254 "Deleted $pagename"))
255 trigger_error(sprintf(_("PageChange Notification of %s sent to %s"),
256 $pagename, join(',',$userids)), E_USER_NOTICE);
258 trigger_error(sprintf(_("PageChange Notification Error: Couldn't send %s to %s"),
259 $pagename, join(',',$userids)), E_USER_WARNING);
264 //How to create a RecentChanges entry with explaining summary? Dynamically
266 $page = $this->getPage($pagename);
267 $current = $page->getCurrentRevision();
268 $meta = $current->_data;
269 $version = $current->getVersion();
270 $meta['summary'] = _("removed");
271 $page->save($current->getPackedContent(), $version + 1, $meta);
277 * Completely remove the page from the WikiDB, without undo possibility.
279 function purgePage($pagename) {
280 $result = $this->_cache->purge_page($pagename);
281 $this->deletePage($pagename); // just for the notification
286 * Retrieve all pages.
288 * Gets the set of all pages with non-default contents.
292 * @param boolean $include_defaulted Normally pages whose most
293 * recent revision has empty content are considered to be
294 * non-existant. Unless $include_defaulted is set to true, those
295 * pages will not be returned.
297 * @return WikiDB_PageIterator A WikiDB_PageIterator which contains all pages
298 * in the WikiDB which have non-default contents.
300 function getAllPages($include_empty=false, $sortby=false, $limit=false, $exclude=false) {
301 // HACK: memory_limit=8M will fail on too large pagesets. old php on unix only!
303 $mem = ini_get("memory_limit");
304 if ($mem and !$limit and !isWindows() and !check_php_version(4,3)) {
306 $GLOBALS['request']->setArg('limit', $limit);
307 $GLOBALS['request']->setArg('paging', 'auto');
310 $result = $this->_backend->get_all_pages($include_empty, $sortby, $limit, $exclude);
311 return new WikiDB_PageIterator($this, $result, array('include_empty' => $include_empty,
312 'exclude' => $exclude,
317 * $include_empty = true: include also empty pages
318 * exclude: comma-seperated list pagenames: TBD: array of pagenames
320 function numPages($include_empty=false, $exclude='') {
321 if (method_exists($this->_backend, 'numPages'))
322 // FIXME: currently are all args ignored.
323 $count = $this->_backend->numPages($include_empty, $exclude);
325 // FIXME: exclude ignored.
326 $iter = $this->getAllPages($include_empty, false, false, $exclude);
327 $count = $iter->count();
336 * Search for pages containing (or not containing) certain words
339 * Pages are returned in alphabetical order whenever it is
340 * practical to do so.
342 * FIXME: clarify $search syntax. provide glob=>TextSearchQuery converters
345 * @param TextSearchQuery $search A TextSearchQuery object
346 * @return WikiDB_PageIterator A WikiDB_PageIterator containing the matching pages.
347 * @see TextSearchQuery
349 function titleSearch($search) {
350 $result = $this->_backend->text_search($search, false);
351 return new WikiDB_PageIterator($this, $result);
357 * Search for pages containing (or not containing) certain words
358 * in their entire text (this includes the page content and the
361 * Pages are returned in alphabetical order whenever it is
362 * practical to do so.
366 * @param TextSearchQuery $search A TextSearchQuery object.
367 * @return WikiDB_PageIterator A WikiDB_PageIterator containing the matching pages.
368 * @see TextSearchQuery
370 function fullSearch($search) {
371 $result = $this->_backend->text_search($search, true);
372 return new WikiDB_PageIterator($this, $result);
376 * Find the pages with the greatest hit counts.
378 * Pages are returned in reverse order by hit count.
382 * @param integer $limit The maximum number of pages to return.
383 * Set $limit to zero to return all pages. If $limit < 0, pages will
384 * be sorted in decreasing order of popularity.
386 * @return WikiDB_PageIterator A WikiDB_PageIterator containing the matching
389 function mostPopular($limit = 20, $sortby = '-hits') {
390 $result = $this->_backend->most_popular($limit, $sortby);
391 return new WikiDB_PageIterator($this, $result);
395 * Find recent page revisions.
397 * Revisions are returned in reverse order by creation time.
401 * @param hash $params This hash is used to specify various optional
405 * <dd> (integer) At most this many revisions will be returned.
407 * <dd> (integer) Only revisions since this time (unix-timestamp) will be returned.
408 * <dt> include_minor_revisions
409 * <dd> (boolean) Also include minor revisions. (Default is not to.)
410 * <dt> exclude_major_revisions
411 * <dd> (boolean) Don't include non-minor revisions.
412 * (Exclude_major_revisions implies include_minor_revisions.)
413 * <dt> include_all_revisions
414 * <dd> (boolean) Return all matching revisions for each page.
415 * Normally only the most recent matching revision is returned
419 * @return WikiDB_PageRevisionIterator A WikiDB_PageRevisionIterator containing the
420 * matching revisions.
422 function mostRecent($params = false) {
423 $result = $this->_backend->most_recent($params);
424 return new WikiDB_PageRevisionIterator($this, $result);
430 * @return Iterator A generic iterator containing rows of (duplicate) pagename, wantedfrom.
432 function wantedPages($exclude_from='', $exclude='', $sortby=false, $limit=false) {
433 return $this->_backend->wanted_pages($exclude_from, $exclude, $sortby, $limit);
434 //return new WikiDB_PageIterator($this, $result);
439 * Call the appropriate backend method.
442 * @param string $from Page to rename
443 * @param string $to New name
444 * @param boolean $updateWikiLinks If the text in all pages should be replaced.
445 * @return boolean true or false
447 function renamePage($from, $to, $updateWikiLinks = false) {
448 assert(is_string($from) && $from != '');
449 assert(is_string($to) && $to != '');
451 if (method_exists($this->_backend, 'rename_page')) {
452 $oldpage = $this->getPage($from);
453 $newpage = $this->getPage($to);
454 //update all WikiLinks in existing pages
455 //non-atomic! i.e. if rename fails the links are not undone
456 if ($updateWikiLinks) {
457 require_once('lib/plugin/WikiAdminSearchReplace.php');
458 $links = $oldpage->getBackLinks();
459 while ($linked_page = $links->next()) {
460 WikiPlugin_WikiAdminSearchReplace::replaceHelper($this,$linked_page->getName(),$from,$to);
462 $links = $newpage->getBackLinks();
463 while ($linked_page = $links->next()) {
464 WikiPlugin_WikiAdminSearchReplace::replaceHelper($this,$linked_page->getName(),$from,$to);
467 if ($oldpage->exists() and ! $newpage->exists()) {
468 if ($result = $this->_backend->rename_page($from, $to)) {
469 //create a RecentChanges entry with explaining summary
470 $page = $this->getPage($to);
471 $current = $page->getCurrentRevision();
472 $meta = $current->_data;
473 $version = $current->getVersion();
474 $meta['summary'] = sprintf(_("renamed from %s"), $from);
475 $page->save($current->getPackedContent(), $version + 1, $meta);
477 } elseif (!$oldpage->getCurrentRevision(false) and !$newpage->exists()) {
478 // if a version 0 exists try it also.
479 $result = $this->_backend->rename_page($from, $to);
482 trigger_error(_("WikiDB::renamePage() not yet implemented for this backend"),
485 /* Generate notification emails? */
487 $notify = $this->get('notify');
488 if (!empty($notify) and is_array($notify)) {
489 list($emails, $userids) = $oldpage->getPageChangeEmails($notify);
490 if (!empty($emails)) {
491 $oldpage->sendPageRenameNotification($to, &$meta, $emails, $userids);
498 /** Get timestamp when database was last modified.
500 * @return string A string consisting of two integers,
501 * separated by a space. The first is the time in
502 * unix timestamp format, the second is a modification
503 * count for the database.
505 * The idea is that you can cast the return value to an
506 * int to get a timestamp, or you can use the string value
507 * as a good hash for the entire database.
509 function getTimestamp() {
510 $ts = $this->get('_timestamp');
511 return sprintf("%d %d", $ts[0], $ts[1]);
515 * Update the database timestamp.
519 $ts = $this->get('_timestamp');
520 $this->set('_timestamp', array(time(), $ts[1] + 1));
525 * Access WikiDB global meta-data.
527 * NOTE: this is currently implemented in a hackish and
528 * not very efficient manner.
532 * @param string $key Which meta data to get.
533 * Some reserved meta-data keys are:
535 * <dt>'_timestamp' <dd> Data used by getTimestamp().
538 * @return scalar The requested value, or false if the requested data
542 if (!$key || $key[0] == '%')
545 * Hack Alert: We can use any page (existing or not) to store
546 * this data (as long as we always use the same one.)
548 $gd = $this->getPage('global_data');
549 $data = $gd->get('__global');
551 if ($data && isset($data[$key]))
558 * Set global meta-data.
560 * NOTE: this is currently implemented in a hackish and
561 * not very efficient manner.
566 * @param string $key Meta-data key to set.
567 * @param string $newval New value.
569 function set($key, $newval) {
570 if (!$key || $key[0] == '%')
573 $gd = $this->getPage('global_data');
574 $data = $gd->get('__global');
581 $data[$key] = $newval;
583 $gd->set('__global', $data);
586 /* TODO: these are really backend methods */
588 // SQL result: for simple select or create/update queries
589 // returns the database specific resource type
590 function genericSqlQuery($sql) {
591 if (function_exists('debug_backtrace')) { // >= 4.3.0
592 echo "<pre>", printSimpleTrace(debug_backtrace()), "</pre>\n";
594 trigger_error("no SQL database", E_USER_ERROR);
598 // SQL iter: for simple select or create/update queries
599 // returns the generic iterator object (count,next)
600 function genericSqlIter($sql, $field_list = NULL) {
601 if (function_exists('debug_backtrace')) { // >= 4.3.0
602 echo "<pre>", printSimpleTrace(debug_backtrace()), "</pre>\n";
604 trigger_error("no SQL database", E_USER_ERROR);
608 // see backend upstream methods
609 // ADODB adds surrounding quotes, SQL not yet!
610 function quote ($s) {
616 if (!$request->_dbi) return false;
617 else return false; /* so far only needed for sql so false it.
618 later we have to check dba also */
621 function getParam($param) {
623 if (isset($DBParams[$param])) return $DBParams[$param];
624 elseif ($param == 'prefix') return '';
628 function getAuthParam($param) {
629 global $DBAuthParams;
630 if (isset($DBAuthParams[$param])) return $DBAuthParams[$param];
631 elseif ($param == 'USER_AUTH_ORDER') return $GLOBALS['USER_AUTH_ORDER'];
632 elseif ($param == 'USER_AUTH_POLICY') return $GLOBALS['USER_AUTH_POLICY'];
639 * An abstract base class which representing a wiki-page within a
642 * A WikiDB_Page contains a number (at least one) of
643 * WikiDB_PageRevisions.
647 function WikiDB_Page(&$wikidb, $pagename) {
648 $this->_wikidb = &$wikidb;
649 $this->_pagename = $pagename;
651 if (!(is_string($pagename) and $pagename != '')) {
652 if (function_exists("xdebug_get_function_stack")) {
653 echo "xdebug_get_function_stack(): "; var_dump(xdebug_get_function_stack());
654 } elseif (function_exists("debug_backtrace")) { // >= 4.3.0
655 printSimpleTrace(debug_backtrace());
657 trigger_error("empty pagename", E_USER_WARNING);
661 assert(is_string($pagename) and $pagename != '');
665 * Get the name of the wiki page.
669 * @return string The page name.
672 return $this->_pagename;
675 // To reduce the memory footprint for larger sets of pagelists,
676 // we don't cache the content (only true or false) and
677 // we purge the pagedata (_cached_html) also
679 if (isset($this->_wikidb->_cache->_id_cache[$this->_pagename])) return true;
680 $current = $this->getCurrentRevision(false);
681 if (!$current) return false;
682 return ! $current->hasDefaultContents();
686 * Delete an old revision of a WikiDB_Page.
688 * Deletes the specified revision of the page.
689 * It is a fatal error to attempt to delete the current revision.
693 * @param integer $version Which revision to delete. (You can also
694 * use a WikiDB_PageRevision object here.)
696 function deleteRevision($version) {
697 $backend = &$this->_wikidb->_backend;
698 $cache = &$this->_wikidb->_cache;
699 $pagename = &$this->_pagename;
701 $version = $this->_coerce_to_version($version);
705 $backend->lock(array('page','version'));
706 $latestversion = $cache->get_latest_version($pagename);
707 if ($latestversion && $version == $latestversion) {
708 $backend->unlock(array('page','version'));
709 trigger_error(sprintf("Attempt to delete most recent revision of '%s'",
710 $pagename), E_USER_ERROR);
714 $cache->delete_versiondata($pagename, $version);
715 $backend->unlock(array('page','version'));
719 * Delete a revision, or possibly merge it with a previous
723 * Suppose an author make a (major) edit to a page. Shortly
724 * after that the same author makes a minor edit (e.g. to fix
725 * spelling mistakes he just made.)
727 * Now some time later, where cleaning out old saved revisions,
728 * and would like to delete his minor revision (since there's
729 * really no point in keeping minor revisions around for a long
732 * Note that the text after the minor revision probably represents
733 * what the author intended to write better than the text after
734 * the preceding major edit.
736 * So what we really want to do is merge the minor edit with the
739 * We will only do this when:
741 * <li>The revision being deleted is a minor one, and
742 * <li>It has the same author as the immediately preceding revision.
745 function mergeRevision($version) {
746 $backend = &$this->_wikidb->_backend;
747 $cache = &$this->_wikidb->_cache;
748 $pagename = &$this->_pagename;
750 $version = $this->_coerce_to_version($version);
754 $backend->lock(array('version'));
755 $latestversion = $cache->get_latest_version($pagename);
756 if ($latestversion && $version == $latestversion) {
757 $backend->unlock(array('version'));
758 trigger_error(sprintf("Attempt to merge most recent revision of '%s'",
759 $pagename), E_USER_ERROR);
763 $versiondata = $cache->get_versiondata($pagename, $version, true);
765 // Not there? ... we're done!
766 $backend->unlock(array('version'));
770 if ($versiondata['is_minor_edit']) {
771 $previous = $backend->get_previous_version($pagename, $version);
773 $prevdata = $cache->get_versiondata($pagename, $previous);
774 if ($prevdata['author_id'] == $versiondata['author_id']) {
775 // This is a minor revision, previous version is
776 // by the same author. We will merge the
778 $cache->update_versiondata($pagename, $previous,
779 array('%content' => $versiondata['%content'],
780 '_supplanted' => $versiondata['_supplanted']));
785 $cache->delete_versiondata($pagename, $version);
786 $backend->unlock(array('version'));
791 * Create a new revision of a {@link WikiDB_Page}.
795 * @param int $version Version number for new revision.
796 * To ensure proper serialization of edits, $version must be
797 * exactly one higher than the current latest version.
798 * (You can defeat this check by setting $version to
799 * {@link WIKIDB_FORCE_CREATE} --- not usually recommended.)
801 * @param string $content Contents of new revision.
803 * @param hash $metadata Metadata for new revision.
804 * All values in the hash should be scalars (strings or integers).
806 * @param array $links List of pagenames which this page links to.
808 * @return WikiDB_PageRevision Returns the new WikiDB_PageRevision object. If
809 * $version was incorrect, returns false
811 function createRevision($version, &$content, $metadata, $links) {
812 $backend = &$this->_wikidb->_backend;
813 $cache = &$this->_wikidb->_cache;
814 $pagename = &$this->_pagename;
815 $cache->invalidate_cache($pagename);
817 $backend->lock(array('version','page','recent','link','nonempty'));
819 $latestversion = $backend->get_latest_version($pagename);
820 $newversion = ($latestversion ? $latestversion : 0) + 1;
821 assert($newversion >= 1);
823 if ($version != WIKIDB_FORCE_CREATE and $version != $newversion) {
824 $backend->unlock(array('version','page','recent','link','nonempty'));
830 foreach ($data as $key => $val) {
831 if (empty($val) || $key[0] == '_' || $key[0] == '%')
835 assert(!empty($data['author']));
836 if (empty($data['author_id']))
837 @$data['author_id'] = $data['author'];
839 if (empty($data['mtime']))
840 $data['mtime'] = time();
842 if ($latestversion and $version != WIKIDB_FORCE_CREATE) {
843 // Ensure mtimes are monotonic.
844 $pdata = $cache->get_versiondata($pagename, $latestversion);
845 if ($data['mtime'] < $pdata['mtime']) {
846 trigger_error(sprintf(_("%s: Date of new revision is %s"),
847 $pagename,"'non-monotonic'"),
849 $data['orig_mtime'] = $data['mtime'];
850 $data['mtime'] = $pdata['mtime'];
853 // FIXME: use (possibly user specified) 'mtime' time or
855 $cache->update_versiondata($pagename, $latestversion,
856 array('_supplanted' => $data['mtime']));
859 $data['%content'] = &$content;
861 $cache->set_versiondata($pagename, $newversion, $data);
863 //$cache->update_pagedata($pagename, array(':latestversion' => $newversion,
864 //':deleted' => empty($content)));
866 $backend->set_links($pagename, $links);
868 $backend->unlock(array('version','page','recent','link','nonempty'));
870 return new WikiDB_PageRevision($this->_wikidb, $pagename, $newversion,
874 /** A higher-level interface to createRevision.
876 * This takes care of computing the links, and storing
877 * a cached version of the transformed wiki-text.
879 * @param string $wikitext The page content.
881 * @param int $version Version number for new revision.
882 * To ensure proper serialization of edits, $version must be
883 * exactly one higher than the current latest version.
884 * (You can defeat this check by setting $version to
885 * {@link WIKIDB_FORCE_CREATE} --- not usually recommended.)
887 * @param hash $meta Meta-data for new revision.
889 function save($wikitext, $version, $meta) {
890 $formatted = new TransformedText($this, $wikitext, $meta);
891 $type = $formatted->getType();
892 $meta['pagetype'] = $type->getName();
893 $links = $formatted->getWikiPageLinks();
895 $backend = &$this->_wikidb->_backend;
896 $newrevision = $this->createRevision($version, $wikitext, $meta, $links);
897 if ($newrevision and !WIKIDB_NOCACHE_MARKUP)
898 $this->set('_cached_html', $formatted->pack());
900 // FIXME: probably should have some global state information
901 // in the backend to control when to optimize.
903 // We're doing this here rather than in createRevision because
904 // postgres can't optimize while locked.
905 if ((DEBUG & _DEBUG_SQL) or (time() % 5 == 0)) {
906 if ($backend->optimize())
907 trigger_error(_("Optimizing database"), E_USER_NOTICE);
910 /* Generate notification emails? */
911 if (isa($newrevision, 'WikiDB_PageRevision')) {
912 // Save didn't fail because of concurrent updates.
913 $notify = $this->_wikidb->get('notify');
914 if (!empty($notify) and is_array($notify)) {
915 list($emails, $userids) = $this->getPageChangeEmails($notify);
916 if (!empty($emails)) {
917 $this->sendPageChangeNotification($wikitext, $version, $meta, $emails, $userids);
920 $newrevision->_transformedContent = $formatted;
926 function getPageChangeEmails($notify) {
927 $emails = array(); $userids = array();
928 foreach ($notify as $page => $users) {
929 if (glob_match($page, $this->_pagename)) {
930 foreach ($users as $userid => $user) {
931 if (!$user) { // handle the case for ModeratePage: no prefs, just userid's.
933 $u = $request->getUser();
934 if ($u->UserName() == $userid) {
935 $prefs = $u->getPreferences();
938 if (ENABLE_USER_NEW) {
939 $u = WikiUser($userid);
940 $u->getPreferences();
941 $prefs = &$u->_prefs;
943 $u = new WikiUser($GLOBALS['request'], $userid);
944 $prefs = $u->getPreferences();
947 $emails[] = $prefs->get('email');
948 $userids[] = $userid;
950 if (!empty($user['verified']) and !empty($user['email'])) {
951 $emails[] = $user['email'];
952 $userids[] = $userid;
953 } elseif (!empty($user['email'])) {
955 // do a dynamic emailVerified check update
956 $u = $request->getUser();
957 if ($u->UserName() == $userid) {
958 if ($request->_prefs->get('emailVerified')) {
959 $emails[] = $user['email'];
960 $userids[] = $userid;
961 $notify[$page][$userid]['verified'] = 1;
962 $request->_dbi->set('notify', $notify);
966 if (ENABLE_USER_NEW) {
967 $u = WikiUser($userid);
968 $u->getPreferences();
969 $prefs = &$u->_prefs;
971 $u = new WikiUser($GLOBALS['request'], $userid);
972 $prefs = $u->getPreferences();
974 if ($prefs->get('emailVerified')) {
975 $emails[] = $user['email'];
976 $userids[] = $userid;
977 $notify[$page][$userid]['verified'] = 1;
978 $request->_dbi->set('notify', $notify);
981 // ignore verification
984 if (!in_array($user['email'],$emails))
985 $emails[] = $user['email'];
993 $emails = array_unique($emails);
994 $userids = array_unique($userids);
995 return array($emails, $userids);
999 * Send udiff for a changed page to multiple users.
1000 * See rename and remove methods also
1002 function sendPageChangeNotification(&$wikitext, $version, $meta, $emails, $userids) {
1004 if (@is_array($request->_deferredPageChangeNotification)) {
1005 // collapse multiple changes (loaddir) into one email
1006 $request->_deferredPageChangeNotification[] = array($this->_pagename, $emails, $userids);
1009 $backend = &$this->_wikidb->_backend;
1010 //$backend = &$request->_dbi->_backend;
1011 $subject = _("Page change").' '.urlencode($this->_pagename);
1012 $previous = $backend->get_previous_version($this->_pagename, $version);
1013 if (!isset($meta['mtime'])) $meta['mtime'] = time();
1015 $difflink = WikiURL($this->_pagename, array('action'=>'diff'), true);
1016 $cache = &$this->_wikidb->_cache;
1017 //$cache = &$request->_dbi->_cache;
1018 $this_content = explode("\n", $wikitext);
1019 $prevdata = $cache->get_versiondata($this->_pagename, $previous, true);
1020 if (empty($prevdata['%content']))
1021 $prevdata = $backend->get_versiondata($this->_pagename, $previous, true);
1022 $other_content = explode("\n", $prevdata['%content']);
1024 include_once("lib/difflib.php");
1025 $diff2 = new Diff($other_content, $this_content);
1026 //$context_lines = max(4, count($other_content) + 1,
1027 // count($this_content) + 1);
1028 $fmt = new UnifiedDiffFormatter(/*$context_lines*/);
1029 $content = $this->_pagename . " " . $previous . " " . Iso8601DateTime($prevdata['mtime']) . "\n";
1030 $content .= $this->_pagename . " " . $version . " " . Iso8601DateTime($meta['mtime']) . "\n";
1031 $content .= $fmt->format($diff2);
1034 $difflink = WikiURL($this->_pagename,array(),true);
1035 $content = $this->_pagename . " " . $version . " " . Iso8601DateTime($meta['mtime']) . "\n";
1036 $content .= _("New Page");
1038 $editedby = sprintf(_("Edited by: %s"), $meta['author']);
1039 $emails = join(',',$emails);
1040 if (mail($emails,"[".WIKI_NAME."] ".$subject,
1045 trigger_error(sprintf(_("PageChange Notification of %s sent to %s"),
1046 $this->_pagename, join(',',$userids)), E_USER_NOTICE);
1048 trigger_error(sprintf(_("PageChange Notification Error: Couldn't send %s to %s"),
1049 $this->_pagename, join(',',$userids)), E_USER_WARNING);
1052 /** support mass rename / remove (not yet tested)
1054 function sendPageRenameNotification($to, &$meta, $emails, $userids) {
1056 if (@is_array($request->_deferredPageRenameNotification)) {
1057 $request->_deferredPageRenameNotification[] = array($this->_pagename, $to, $meta, $emails, $userids);
1059 $from = $this->_pagename;
1060 $editedby = sprintf(_("Edited by: %s"), $meta['author']) . ' ' . $meta['author_id'];
1061 $emails = join(',',$emails);
1062 $subject = sprintf(_("Page rename %s to %s"), urlencode($from), urlencode($to));
1063 $link = WikiURL($to, true);
1064 if (mail($emails,"[".WIKI_NAME."] ".$subject,
1068 "Renamed $from to $to"))
1069 trigger_error(sprintf(_("PageChange Notification of %s sent to %s"),
1070 $from, join(',',$userids)), E_USER_NOTICE);
1072 trigger_error(sprintf(_("PageChange Notification Error: Couldn't send %s to %s"),
1073 $from, join(',',$userids)), E_USER_WARNING);
1078 * Get the most recent revision of a page.
1082 * @return WikiDB_PageRevision The current WikiDB_PageRevision object.
1084 function getCurrentRevision($need_content = true) {
1085 $backend = &$this->_wikidb->_backend;
1086 $cache = &$this->_wikidb->_cache;
1087 $pagename = &$this->_pagename;
1089 // Prevent deadlock in case of memory exhausted errors
1090 // Pure selection doesn't really need locking here.
1091 // sf.net bug#927395
1092 // I know it would be better to lock, but with lots of pages this deadlock is more
1093 // severe than occasionally get not the latest revision.
1094 // In spirit to wikiwiki: read fast, edit slower.
1096 $version = $cache->get_latest_version($pagename);
1097 // getRevision gets the content also!
1098 $revision = $this->getRevision($version, $need_content);
1099 //$backend->unlock();
1105 * Get a specific revision of a WikiDB_Page.
1109 * @param integer $version Which revision to get.
1111 * @return WikiDB_PageRevision The requested WikiDB_PageRevision object, or
1112 * false if the requested revision does not exist in the {@link WikiDB}.
1113 * Note that version zero of any page always exists.
1115 function getRevision($version, $need_content=true) {
1116 $cache = &$this->_wikidb->_cache;
1117 $pagename = &$this->_pagename;
1119 if (! $version or $version == -1) // 0 or false
1120 return new WikiDB_PageRevision($this->_wikidb, $pagename, 0);
1122 assert($version > 0);
1123 $vdata = $cache->get_versiondata($pagename, $version, $need_content);
1125 return new WikiDB_PageRevision($this->_wikidb, $pagename, 0);
1127 return new WikiDB_PageRevision($this->_wikidb, $pagename, $version,
1132 * Get previous page revision.
1134 * This method find the most recent revision before a specified
1139 * @param integer $version Find most recent revision before this version.
1140 * You can also use a WikiDB_PageRevision object to specify the $version.
1142 * @return WikiDB_PageRevision The requested WikiDB_PageRevision object, or false if the
1143 * requested revision does not exist in the {@link WikiDB}. Note that
1144 * unless $version is greater than zero, a revision (perhaps version zero,
1145 * the default revision) will always be found.
1147 function getRevisionBefore($version, $need_content=true) {
1148 $backend = &$this->_wikidb->_backend;
1149 $pagename = &$this->_pagename;
1151 $version = $this->_coerce_to_version($version);
1156 $previous = $backend->get_previous_version($pagename, $version);
1157 $revision = $this->getRevision($previous, $need_content);
1158 //$backend->unlock();
1164 * Get all revisions of the WikiDB_Page.
1166 * This does not include the version zero (default) revision in the
1167 * returned revision set.
1169 * @return WikiDB_PageRevisionIterator A
1170 * WikiDB_PageRevisionIterator containing all revisions of this
1171 * WikiDB_Page in reverse order by version number.
1173 function getAllRevisions() {
1174 $backend = &$this->_wikidb->_backend;
1175 $revs = $backend->get_all_revisions($this->_pagename);
1176 return new WikiDB_PageRevisionIterator($this->_wikidb, $revs);
1180 * Find pages which link to or are linked from a page.
1184 * @param boolean $reversed Which links to find: true for backlinks (default).
1186 * @return WikiDB_PageIterator A WikiDB_PageIterator containing
1187 * all matching pages.
1189 function getLinks($reversed = true, $include_empty=false, $sortby=false, $limit=false, $exclude=false) {
1190 $backend = &$this->_wikidb->_backend;
1191 $result = $backend->get_links($this->_pagename, $reversed, $include_empty, $sortby, $limit, $exclude);
1192 return new WikiDB_PageIterator($this->_wikidb, $result,
1193 array('include_empty' => $include_empty,
1194 'sortby' => $sortby,
1196 'exclude' => $exclude));
1200 * All Links from other pages to this page.
1202 function getBackLinks($include_empty=false, $sortby=false, $limit=false, $exclude=false) {
1203 return $this->getLinks(true, $include_empty, $sortby, $limit, $exclude);
1206 * Forward Links: All Links from this page to other pages.
1208 function getPageLinks($include_empty=false, $sortby=false, $limit=false, $exclude=false) {
1209 return $this->getLinks(false, $include_empty, $sortby, $limit, $exclude);
1213 * possibly faster link existance check. not yet accelerated.
1215 function existLink($link, $reversed=false) {
1216 $backend = &$this->_wikidb->_backend;
1217 if (method_exists($backend,'exists_link'))
1218 return $backend->exists_link($this->_pagename, $link, $reversed);
1219 //$cache = &$this->_wikidb->_cache;
1220 // TODO: check cache if it is possible
1221 $iter = $this->getLinks($reversed, false);
1222 while ($page = $iter->next()) {
1223 if ($page->getName() == $link)
1231 * Access WikiDB_Page meta-data.
1235 * @param string $key Which meta data to get.
1236 * Some reserved meta-data keys are:
1238 * <dt>'locked'<dd> Is page locked?
1239 * <dt>'hits' <dd> Page hit counter.
1240 * <dt>'pref' <dd> Users preferences, stored in homepages.
1241 * <dt>'owner' <dd> Default: first author_id. We might add a group with a dot here:
1242 * E.g. "owner.users"
1243 * <dt>'perm' <dd> Permission flag to authorize read/write/execution of
1244 * page-headers and content.
1245 * <dt>'score' <dd> Page score (not yet implement, do we need?)
1248 * @return scalar The requested value, or false if the requested data
1251 function get($key) {
1252 $cache = &$this->_wikidb->_cache;
1253 if (!$key || $key[0] == '%')
1255 $data = $cache->get_pagedata($this->_pagename);
1256 return isset($data[$key]) ? $data[$key] : false;
1260 * Get all the page meta-data as a hash.
1262 * @return hash The page meta-data.
1264 function getMetaData() {
1265 $cache = &$this->_wikidb->_cache;
1266 $data = $cache->get_pagedata($this->_pagename);
1268 foreach ($data as $key => $val) {
1269 if (/*!empty($val) &&*/ $key[0] != '%')
1276 * Set page meta-data.
1281 * @param string $key Meta-data key to set.
1282 * @param string $newval New value.
1284 function set($key, $newval) {
1285 $cache = &$this->_wikidb->_cache;
1286 $pagename = &$this->_pagename;
1288 assert($key && $key[0] != '%');
1290 $data = $cache->get_pagedata($pagename);
1292 if (!empty($newval)) {
1293 if (!empty($data[$key]) && $data[$key] == $newval)
1294 return; // values identical, skip update.
1297 if (empty($data[$key]))
1298 return; // values identical, skip update.
1301 $cache->update_pagedata($pagename, array($key => $newval));
1305 * Increase page hit count.
1307 * FIXME: IS this needed? Probably not.
1309 * This is a convenience function.
1310 * <pre> $page->increaseHitCount(); </pre>
1311 * is functionally identical to
1312 * <pre> $page->set('hits',$page->get('hits')+1); </pre>
1313 * but less expensive (ignores the pagadata string)
1315 * Note that this method may be implemented in more efficient ways
1316 * in certain backends.
1320 function increaseHitCount() {
1321 if (method_exists($this->_wikidb->_backend, 'increaseHitCount'))
1322 $this->_wikidb->_backend->increaseHitCount($this->_pagename);
1324 @$newhits = $this->get('hits') + 1;
1325 $this->set('hits', $newhits);
1330 * Return a string representation of the WikiDB_Page
1332 * This is really only for debugging.
1336 * @return string Printable representation of the WikiDB_Page.
1338 function asString () {
1340 printf("[%s:%s\n", get_class($this), $this->getName());
1341 print_r($this->getMetaData());
1343 $strval = ob_get_contents();
1351 * @param integer_or_object $version_or_pagerevision
1352 * Takes either the version number (and int) or a WikiDB_PageRevision
1354 * @return integer The version number.
1356 function _coerce_to_version($version_or_pagerevision) {
1357 if (method_exists($version_or_pagerevision, "getContent"))
1358 $version = $version_or_pagerevision->getVersion();
1360 $version = (int) $version_or_pagerevision;
1362 assert($version >= 0);
1366 function isUserPage ($include_empty = true) {
1367 if (!$include_empty and !$this->exists()) return false;
1368 return $this->get('pref') ? true : false;
1371 // May be empty. Either the stored owner (/Chown), or the first authorized author
1372 function getOwner() {
1373 if ($owner = $this->get('owner'))
1374 return ($owner == "The PhpWiki programming team") ? ADMIN_USER : $owner;
1375 // check all revisions forwards for the first author_id
1376 $backend = &$this->_wikidb->_backend;
1377 $pagename = &$this->_pagename;
1378 $latestversion = $backend->get_latest_version($pagename);
1379 for ($v=1; $v <= $latestversion; $v++) {
1380 $rev = $this->getRevision($v,false);
1381 if ($rev and $owner = $rev->get('author_id')) {
1382 return ($owner == "The PhpWiki programming team") ? ADMIN_USER : $owner;
1388 // The authenticated author of the first revision or empty if not authenticated then.
1389 function getCreator() {
1390 if ($current = $this->getRevision(1,false)) return $current->get('author_id');
1394 // The authenticated author of the current revision.
1395 function getAuthor() {
1396 if ($current = $this->getCurrentRevision(false)) return $current->get('author_id');
1403 * This class represents a specific revision of a WikiDB_Page within
1406 * A WikiDB_PageRevision has read-only semantics. You may only create
1407 * new revisions (and delete old ones) --- you cannot modify existing
1410 class WikiDB_PageRevision
1412 //var $_transformedContent = false; // set by WikiDB_Page::save()
1414 function WikiDB_PageRevision(&$wikidb, $pagename, $version, $versiondata = false) {
1415 $this->_wikidb = &$wikidb;
1416 $this->_pagename = $pagename;
1417 $this->_version = $version;
1418 $this->_data = $versiondata ? $versiondata : array();
1419 $this->_transformedContent = false; // set by WikiDB_Page::save()
1423 * Get the WikiDB_Page which this revision belongs to.
1427 * @return WikiDB_Page The WikiDB_Page which this revision belongs to.
1429 function getPage() {
1430 return new WikiDB_Page($this->_wikidb, $this->_pagename);
1434 * Get the version number of this revision.
1438 * @return integer The version number of this revision.
1440 function getVersion() {
1441 return $this->_version;
1445 * Determine whether this revision has defaulted content.
1447 * The default revision (version 0) of each page, as well as any
1448 * pages which are created with empty content have their content
1449 * defaulted to something like:
1451 * Describe [ThisPage] here.
1456 * @return boolean Returns true if the page has default content.
1458 function hasDefaultContents() {
1459 $data = &$this->_data;
1460 return empty($data['%content']); // FIXME: what if it's the number 0? <>'' or === false
1464 * Get the content as an array of lines.
1468 * @return array An array of lines.
1469 * The lines should contain no trailing white space.
1471 function getContent() {
1472 return explode("\n", $this->getPackedContent());
1476 * Get the pagename of the revision.
1480 * @return string pagename.
1482 function getPageName() {
1483 return $this->_pagename;
1487 * Determine whether revision is the latest.
1491 * @return boolean True iff the revision is the latest (most recent) one.
1493 function isCurrent() {
1494 if (!isset($this->_iscurrent)) {
1495 $page = $this->getPage();
1496 $current = $page->getCurrentRevision(false);
1497 $this->_iscurrent = $this->getVersion() == $current->getVersion();
1499 return $this->_iscurrent;
1503 * Get the transformed content of a page.
1505 * @param string $pagetype Override the page-type of the revision.
1507 * @return object An XmlContent-like object containing the page transformed
1510 function getTransformedContent($pagetype_override=false) {
1511 $backend = &$this->_wikidb->_backend;
1513 if ($pagetype_override) {
1514 // Figure out the normal page-type for this page.
1515 $type = PageType::GetPageType($this->get('pagetype'));
1516 if ($type->getName() == $pagetype_override)
1517 $pagetype_override = false; // Not really an override...
1520 if ($pagetype_override) {
1521 // Overriden page type, don't cache (or check cache).
1522 return new TransformedText($this->getPage(),
1523 $this->getPackedContent(),
1524 $this->getMetaData(),
1525 $pagetype_override);
1528 $possibly_cache_results = true;
1530 if (!USECACHE or WIKIDB_NOCACHE_MARKUP) {
1531 if (WIKIDB_NOCACHE_MARKUP == 'purge') {
1532 // flush cache for this page.
1533 $page = $this->getPage();
1534 $page->set('_cached_html', false);
1536 $possibly_cache_results = false;
1538 elseif (!$this->_transformedContent) {
1540 if ($this->isCurrent()) {
1541 $page = $this->getPage();
1542 $this->_transformedContent = TransformedText::unpack($page->get('_cached_html'));
1545 $possibly_cache_results = false;
1547 //$backend->unlock();
1550 if (!$this->_transformedContent) {
1551 $this->_transformedContent
1552 = new TransformedText($this->getPage(),
1553 $this->getPackedContent(),
1554 $this->getMetaData());
1556 if ($possibly_cache_results) {
1557 // If we're still the current version, cache the transfomed page.
1559 if ($this->isCurrent()) {
1560 $page->set('_cached_html', $this->_transformedContent->pack());
1562 //$backend->unlock();
1566 return $this->_transformedContent;
1570 * Get the content as a string.
1574 * @return string The page content.
1575 * Lines are separated by new-lines.
1577 function getPackedContent() {
1578 $data = &$this->_data;
1581 if (empty($data['%content'])) {
1582 include_once('lib/InlineParser.php');
1584 // A feature similar to taglines at http://www.wlug.org.nz/
1585 // Lib from http://www.aasted.org/quote/
1586 if (defined('FORTUNE_DIR')
1587 and is_dir(FORTUNE_DIR)
1588 and in_array($GLOBALS['request']->getArg('action'),
1589 array('create','edit')))
1591 include_once("lib/fortune.php");
1592 $fortune = new Fortune();
1593 $quote = str_replace("\n<br>","\n", $fortune->quoteFromDir(FORTUNE_DIR));
1594 return sprintf("<verbatim>\n%s</verbatim>\n\n"._("Describe %s here."),
1595 $quote, "[" . WikiEscape($this->_pagename) . "]");
1597 // Replace empty content with default value.
1598 return sprintf(_("Describe %s here."),
1599 "[" . WikiEscape($this->_pagename) . "]");
1602 // There is (non-default) content.
1603 assert($this->_version > 0);
1605 if (!is_string($data['%content'])) {
1606 // Content was not provided to us at init time.
1607 // (This is allowed because for some backends, fetching
1608 // the content may be expensive, and often is not wanted
1611 // In any case, now we need to get it.
1612 $data['%content'] = $this->_get_content();
1613 assert(is_string($data['%content']));
1616 return $data['%content'];
1619 function _get_content() {
1620 $cache = &$this->_wikidb->_cache;
1621 $pagename = $this->_pagename;
1622 $version = $this->_version;
1624 assert($version > 0);
1626 $newdata = $cache->get_versiondata($pagename, $version, true);
1628 assert(is_string($newdata['%content']));
1629 return $newdata['%content'];
1632 // else revision has been deleted... What to do?
1633 return __sprintf("Oops! Revision %s of %s seems to have been deleted!",
1634 $version, $pagename);
1639 * Get meta-data for this revision.
1644 * @param string $key Which meta-data to access.
1646 * Some reserved revision meta-data keys are:
1648 * <dt> 'mtime' <dd> Time this revision was created (seconds since midnight Jan 1, 1970.)
1649 * The 'mtime' meta-value is normally set automatically by the database
1650 * backend, but it may be specified explicitly when creating a new revision.
1652 * <dd> To ensure consistency of RecentChanges, the mtimes of the versions
1653 * of a page must be monotonically increasing. If an attempt is
1654 * made to create a new revision with an mtime less than that of
1655 * the preceeding revision, the new revisions timestamp is force
1656 * to be equal to that of the preceeding revision. In that case,
1657 * the originally requested mtime is preserved in 'orig_mtime'.
1658 * <dt> '_supplanted' <dd> Time this revision ceased to be the most recent.
1659 * This meta-value is <em>always</em> automatically maintained by the database
1660 * backend. (It is set from the 'mtime' meta-value of the superceding
1661 * revision.) '_supplanted' has a value of 'false' for the current revision.
1663 * FIXME: this could be refactored:
1665 * <dd> Author of the page (as he should be reported in, e.g. RecentChanges.)
1667 * <dd> Authenticated author of a page. This is used to identify
1668 * the distinctness of authors when cleaning old revisions from
1670 * <dt> 'is_minor_edit' <dd> Set if change was marked as a minor revision by the author.
1671 * <dt> 'summary' <dd> Short change summary entered by page author.
1674 * Meta-data keys must be valid C identifers (they have to start with a letter
1675 * or underscore, and can contain only alphanumerics and underscores.)
1677 * @return string The requested value, or false if the requested value
1680 function get($key) {
1681 if (!$key || $key[0] == '%')
1683 $data = &$this->_data;
1684 return isset($data[$key]) ? $data[$key] : false;
1688 * Get all the revision page meta-data as a hash.
1690 * @return hash The revision meta-data.
1692 function getMetaData() {
1694 foreach ($this->_data as $key => $val) {
1695 if (!empty($val) && $key[0] != '%')
1703 * Return a string representation of the revision.
1705 * This is really only for debugging.
1709 * @return string Printable representation of the WikiDB_Page.
1711 function asString () {
1713 printf("[%s:%d\n", get_class($this), $this->get('version'));
1714 print_r($this->_data);
1715 echo $this->getPackedContent() . "\n]\n";
1716 $strval = ob_get_contents();
1724 * Class representing a sequence of WikiDB_Pages.
1725 * TODO: Enhance to php5 iterators
1727 class WikiDB_PageIterator
1729 function WikiDB_PageIterator(&$wikidb, &$iter, $options=false) {
1730 $this->_iter = $iter; // a WikiDB_backend_iterator
1731 $this->_wikidb = &$wikidb;
1732 $this->_options = $options;
1736 return $this->_iter->count();
1740 * Get next WikiDB_Page in sequence.
1744 * @return WikiDB_Page The next WikiDB_Page in the sequence.
1747 if ( ! ($next = $this->_iter->next()) )
1750 $pagename = &$next['pagename'];
1752 trigger_error('empty pagename in WikiDB_PageIterator::next()', E_USER_WARNING);
1756 // there's always hits, but we cache only if more
1757 // (well not with file, cvs and dba)
1758 if (isset($next['pagedata']) and count($next['pagedata']) > 1) {
1759 $this->_wikidb->_cache->cache_data($next);
1760 // cache existing page id's since we iterate over all links in GleanDescription
1761 // and need them later for LinkExistingWord
1762 } elseif ($this->_options and array_key_exists('include_empty', $this->_options)
1763 and !$this->_options['include_empty'] and isset($next['id'])) {
1764 $this->_wikidb->_cache->_id_cache[$next['pagename']] = $next['id'];
1766 return new WikiDB_Page($this->_wikidb, $pagename);
1770 * Release resources held by this iterator.
1772 * The iterator may not be used after free() is called.
1774 * There is no need to call free(), if next() has returned false.
1775 * (I.e. if you iterate through all the pages in the sequence,
1776 * you do not need to call free() --- you only need to call it
1777 * if you stop before the end of the iterator is reached.)
1782 $this->_iter->free();
1785 function asArray() {
1787 while ($page = $this->next())
1797 * A class which represents a sequence of WikiDB_PageRevisions.
1798 * TODO: Enhance to php5 iterators
1800 class WikiDB_PageRevisionIterator
1802 function WikiDB_PageRevisionIterator(&$wikidb, &$revisions, $options=false) {
1803 $this->_revisions = $revisions;
1804 $this->_wikidb = &$wikidb;
1805 $this->_options = $options;
1809 return $this->_revisions->count();
1813 * Get next WikiDB_PageRevision in sequence.
1817 * @return WikiDB_PageRevision
1818 * The next WikiDB_PageRevision in the sequence.
1821 if ( ! ($next = $this->_revisions->next()) )
1824 //$this->_wikidb->_cache->cache_data($next);
1826 $pagename = $next['pagename'];
1827 $version = $next['version'];
1828 $versiondata = $next['versiondata'];
1830 if (!(is_string($pagename) and $pagename != '')) {
1831 trigger_error("empty pagename",E_USER_WARNING);
1834 } else assert(is_string($pagename) and $pagename != '');
1836 if (!is_array($versiondata)) {
1837 trigger_error("empty versiondata",E_USER_WARNING);
1840 } else assert(is_array($versiondata));
1842 if (!($version > 0)) {
1843 trigger_error("invalid version",E_USER_WARNING);
1846 } else assert($version > 0);
1848 return new WikiDB_PageRevision($this->_wikidb, $pagename, $version,
1853 * Release resources held by this iterator.
1855 * The iterator may not be used after free() is called.
1857 * There is no need to call free(), if next() has returned false.
1858 * (I.e. if you iterate through all the revisions in the sequence,
1859 * you do not need to call free() --- you only need to call it
1860 * if you stop before the end of the iterator is reached.)
1865 $this->_revisions->free();
1868 function asArray() {
1870 while ($rev = $this->next())
1879 class WikiDB_Array_PageIterator
1881 function WikiDB_Array_PageIterator(&$pagenames) {
1883 $this->_dbi = $request->getDbh();
1884 $this->_pages = $pagenames;
1885 reset($this->_pages);
1888 $c =& current($this->_pages);
1889 next($this->_pages);
1890 return $c !== false ? $this->_dbi->getPage($c) : false;
1893 return count($this->_pages);
1896 function asArray() {
1897 reset($this->_pages);
1898 return $this->_pages;
1902 class WikiDB_Array_generic_iter
1904 function WikiDB_Array_generic_iter($result) {
1905 // $result may be either an array or a query result
1906 if (is_array($result)) {
1907 $this->_array = $result;
1908 } elseif (is_object($result)) {
1909 $this->_array = $result->asArray();
1911 $this->_array = array();
1913 if (!empty($this->_array))
1914 reset($this->_array);
1917 $c =& current($this->_array);
1918 next($this->_array);
1919 return $c !== false ? $c : false;
1922 return count($this->_array);
1925 function asArray() {
1926 if (!empty($this->_array))
1927 reset($this->_array);
1928 return $this->_array;
1933 * Data cache used by WikiDB.
1935 * FIXME: Maybe rename this to caching_backend (or some such).
1941 // FIXME: beautify versiondata cache. Cache only limited data?
1943 function WikiDB_cache (&$backend) {
1944 $this->_backend = &$backend;
1946 $this->_pagedata_cache = array();
1947 $this->_versiondata_cache = array();
1948 array_push ($this->_versiondata_cache, array());
1949 $this->_glv_cache = array();
1950 $this->_id_cache = array(); // formerly ->_dbi->_iwpcache (nonempty pages => id)
1954 $this->_pagedata_cache = array();
1955 $this->_versiondata_cache = array();
1956 $this->_glv_cache = array();
1957 $this->_id_cache = array();
1960 function get_pagedata($pagename) {
1961 assert(is_string($pagename) && $pagename != '');
1963 $cache = &$this->_pagedata_cache;
1964 if (!isset($cache[$pagename]) || !is_array($cache[$pagename])) {
1965 $cache[$pagename] = $this->_backend->get_pagedata($pagename);
1966 // Never keep a ['%pagedata']['_cached_html'] in cache, other than the current page.
1967 if (isset($cache[$pagename]['_cached_html'])
1968 and $pagename != $GLOBALS['request']->getArg('pagename')) {
1969 unset($cache[$pagename]['_cached_html']);
1971 if (empty($cache[$pagename]))
1972 $cache[$pagename] = array();
1974 return $cache[$pagename];
1976 return $this->_backend->get_pagedata($pagename);
1980 function update_pagedata($pagename, $newdata) {
1981 assert(is_string($pagename) && $pagename != '');
1982 unset ($this->_pagedata_cache[$pagename]);
1984 $this->_backend->update_pagedata($pagename, $newdata);
1987 and !empty($this->_pagedata_cache[$pagename])
1988 and is_array($this->_pagedata_cache[$pagename]))
1990 $cachedata = &$this->_pagedata_cache[$pagename];
1991 foreach($newdata as $key => $val)
1992 $cachedata[$key] = $val;
1996 function invalidate_cache($pagename) {
1997 unset ($this->_pagedata_cache[$pagename]);
1998 unset ($this->_versiondata_cache[$pagename]);
1999 unset ($this->_glv_cache[$pagename]);
2000 unset ($this->_id_cache[$pagename]);
2001 //unset ($this->_backend->_page_data);
2004 function delete_page($pagename) {
2005 $result = $this->_backend->delete_page($pagename);
2006 $this->invalidate_cache($pagename);
2010 function purge_page($pagename) {
2011 $result = $this->_backend->purge_page($pagename);
2012 $this->invalidate_cache($pagename);
2016 // FIXME: ugly and wrong. may overwrite full cache with partial cache
2017 function cache_data($data) {
2019 //if (isset($data['pagedata']))
2020 // $this->_pagedata_cache[$data['pagename']] = $data['pagedata'];
2023 function get_versiondata($pagename, $version, $need_content = false) {
2024 // FIXME: Seriously ugly hackage
2025 if (USECACHE) { //temporary - for debugging
2026 assert(is_string($pagename) && $pagename != '');
2027 // there is a bug here somewhere which results in an assertion failure at line 105
2028 // of ArchiveCleaner.php It goes away if we use the next line.
2029 //$need_content = true;
2030 $nc = $need_content ? '1':'0';
2031 $cache = &$this->_versiondata_cache;
2032 if (!isset($cache[$pagename][$version][$nc])||
2033 !(is_array ($cache[$pagename])) || !(is_array ($cache[$pagename][$version]))) {
2034 $cache[$pagename][$version][$nc] =
2035 $this->_backend->get_versiondata($pagename, $version, $need_content);
2036 // If we have retrieved all data, we may as well set the cache for $need_content = false
2038 $cache[$pagename][$version]['0'] =& $cache[$pagename][$version]['1'];
2041 $vdata = $cache[$pagename][$version][$nc];
2043 $vdata = $this->_backend->get_versiondata($pagename, $version, $need_content);
2046 // Rationale: never keep ['%pagedata']['_cached_html'] in cache.
2047 if ($vdata && !empty($vdata['%pagedata'])) {
2048 $this->_pagedata_cache[$pagename] =& $vdata['%pagedata'];
2049 // only store _cached_html for the requested page
2051 and isset($vdata['%pagedata']['_cached_html'])
2052 and $pagename != $GLOBALS['request']->getArg('pagename'))
2054 unset($this->_pagedata_cache[$pagename]['_cached_html']);
2055 unset($cache[$pagename][$version][$nc]['%pagedata']['_cached_html']);
2057 unset($cache[$pagename][$version][0]['%pagedata']['_cached_html']);
2063 function set_versiondata($pagename, $version, $data) {
2064 //unset($this->_versiondata_cache[$pagename][$version]);
2066 $new = $this->_backend->set_versiondata($pagename, $version, $data);
2068 $this->_versiondata_cache[$pagename][$version]['1'] = $data;
2069 $this->_versiondata_cache[$pagename][$version]['0'] = $data;
2070 // Is this necessary?
2071 unset($this->_glv_cache[$pagename]);
2074 function update_versiondata($pagename, $version, $data) {
2075 $new = $this->_backend->update_versiondata($pagename, $version, $data);
2077 // FIXME: never keep ['%pagedata']['_cached_html'] in cache.
2078 $this->_versiondata_cache[$pagename][$version]['1'] = $data;
2080 $this->_versiondata_cache[$pagename][$version]['0'] = $data;
2081 // Is this necessary?
2082 unset($this->_glv_cache[$pagename]);
2085 function delete_versiondata($pagename, $version) {
2086 $new = $this->_backend->delete_versiondata($pagename, $version);
2087 if (isset($this->_versiondata_cache[$pagename][$version]['1']))
2088 unset ($this->_versiondata_cache[$pagename][$version]['1']);
2089 if (isset($this->_versiondata_cache[$pagename][$version]['0']))
2090 unset ($this->_versiondata_cache[$pagename][$version]['0']);
2091 if (isset($this->_glv_cache[$pagename]))
2092 unset ($this->_glv_cache[$pagename]);
2095 function get_latest_version($pagename) {
2097 assert (is_string($pagename) && $pagename != '');
2098 $cache = &$this->_glv_cache;
2099 if (!isset($cache[$pagename])) {
2100 $cache[$pagename] = $this->_backend->get_latest_version($pagename);
2101 if (empty($cache[$pagename]))
2102 $cache[$pagename] = 0;
2104 return $cache[$pagename];
2106 return $this->_backend->get_latest_version($pagename);
2111 function _sql_debuglog($msg, $newline=true, $shutdown=false) {
2115 $stamp = strftime("%y%m%d-%H%M%S");
2116 $fp = fopen("/tmp/sql-$stamp.log", "a");
2117 register_shutdown_function("_sql_debuglog_shutdown_function");
2118 } elseif ($shutdown) {
2122 if ($newline) fputs($fp, "[$i++] $msg");
2123 else fwrite($fp, $msg);
2126 function _sql_debuglog_shutdown_function() {
2127 _sql_debuglog('',false,true);
2130 // $Log: not supported by cvs2svn $
2131 // Revision 1.113 2004/12/06 19:49:55 rurban
2132 // enable action=remove which is undoable and seeable in RecentChanges: ADODB ony for now.
2133 // renamed delete_page to purge_page.
2134 // enable action=edit&version=-1 to force creation of a new version.
2135 // added BABYCART_PATH config
2136 // fixed magiqc in adodb.inc.php
2137 // and some more docs
2139 // Revision 1.112 2004/11/30 17:45:53 rurban
2140 // exists_links backend implementation
2142 // Revision 1.111 2004/11/28 20:39:43 rurban
2143 // deactivate pagecache overwrite: it is wrong
2145 // Revision 1.110 2004/11/26 18:39:01 rurban
2146 // new regex search parser and SQL backends (90% complete, glob and pcre backends missing)
2148 // Revision 1.109 2004/11/25 17:20:50 rurban
2149 // and again a couple of more native db args: backlinks
2151 // Revision 1.108 2004/11/23 13:35:31 rurban
2152 // add case_exact search
2154 // Revision 1.107 2004/11/21 11:59:16 rurban
2155 // remove final \n to be ob_cache independent
2157 // Revision 1.106 2004/11/20 17:35:56 rurban
2158 // improved WantedPages SQL backends
2159 // PageList::sortby new 3rd arg valid_fields (override db fields)
2160 // WantedPages sql pager inexact for performance reasons:
2161 // assume 3 wantedfrom per page, to be correct, no getTotal()
2162 // support exclude argument for get_all_pages, new _sql_set()
2164 // Revision 1.105 2004/11/20 09:16:27 rurban
2165 // Fix bad-style Cut&Paste programming errors, detected by Charles Corrigan.
2167 // Revision 1.104 2004/11/19 19:22:03 rurban
2168 // ModeratePage part1: change status
2170 // Revision 1.103 2004/11/16 17:29:04 rurban
2171 // fix remove notification error
2172 // fix creation + update id_cache update
2174 // Revision 1.102 2004/11/11 18:31:26 rurban
2175 // add simple backtrace on such general failures to get at least an idea where
2177 // Revision 1.101 2004/11/10 19:32:22 rurban
2178 // * optimize increaseHitCount, esp. for mysql.
2179 // * prepend dirs to the include_path (phpwiki_dir for faster searches)
2180 // * Pear_DB version logic (awful but needed)
2181 // * fix broken ADODB quote
2182 // * _extract_page_data simplification
2184 // Revision 1.100 2004/11/10 15:29:20 rurban
2185 // * requires newer Pear_DB (as the internal one): quote() uses now escapeSimple for strings
2186 // * ACCESS_LOG_SQL: fix cause request not yet initialized
2187 // * WikiDB: moved SQL specific methods upwards
2188 // * new Pear_DB quoting: same as ADODB and as newer Pear_DB.
2189 // fixes all around: WikiGroup, WikiUserNew SQL methods, SQL logging
2191 // Revision 1.99 2004/11/09 17:11:05 rurban
2192 // * revert to the wikidb ref passing. there's no memory abuse there.
2193 // * use new wikidb->_cache->_id_cache[] instead of wikidb->_iwpcache, to effectively
2194 // store page ids with getPageLinks (GleanDescription) of all existing pages, which
2195 // are also needed at the rendering for linkExistingWikiWord().
2196 // pass options to pageiterator.
2197 // use this cache also for _get_pageid()
2198 // This saves about 8 SELECT count per page (num all pagelinks).
2199 // * fix passing of all page fields to the pageiterator.
2200 // * fix overlarge session data which got broken with the latest ACCESS_LOG_SQL changes
2202 // Revision 1.98 2004/11/07 18:34:29 rurban
2203 // more logging fixes
2205 // Revision 1.97 2004/11/07 16:02:51 rurban
2206 // new sql access log (for spam prevention), and restructured access log class
2207 // dbh->quote (generic)
2208 // pear_db: mysql specific parts seperated (using replace)
2210 // Revision 1.96 2004/11/05 22:32:15 rurban
2211 // encode the subject to be 7-bit safe
2213 // Revision 1.95 2004/11/05 20:53:35 rurban
2214 // login cleanup: better debug msg on failing login,
2215 // checked password less immediate login (bogo or anon),
2216 // checked olduser pref session error,
2217 // better PersonalPage without password warning on minimal password length=0
2218 // (which is default now)
2220 // Revision 1.94 2004/11/01 10:43:56 rurban
2221 // seperate PassUser methods into seperate dir (memory usage)
2222 // fix WikiUser (old) overlarge data session
2223 // remove wikidb arg from various page class methods, use global ->_dbi instead
2226 // Revision 1.93 2004/10/14 17:17:57 rurban
2227 // remove dbi WikiDB_Page param: use global request object instead. (memory)
2228 // allow most_popular sortby arguments
2230 // Revision 1.92 2004/10/05 17:00:04 rurban
2231 // support paging for simple lists
2232 // fix RatingDb sql backend.
2233 // remove pages from AllPages (this is ListPages then)
2235 // Revision 1.91 2004/10/04 23:41:19 rurban
2236 // delete notify: fix, @unset syntax error
2238 // Revision 1.90 2004/09/28 12:50:22 rurban
2239 // https://sourceforge.net/forum/forum.php?thread_id=1150924&forum_id=18929
2241 // Revision 1.89 2004/09/26 10:54:42 rurban
2242 // silence deferred check
2244 // Revision 1.88 2004/09/25 18:16:40 rurban
2245 // unset more unneeded _cached_html. (Guess this should fix sf.net now)
2247 // Revision 1.87 2004/09/25 16:25:40 rurban
2248 // notify on rename and remove (to be improved)
2250 // Revision 1.86 2004/09/23 18:52:06 rurban
2251 // only fortune at create
2253 // Revision 1.85 2004/09/16 08:00:51 rurban
2254 // just some comments
2256 // Revision 1.84 2004/09/14 10:34:30 rurban
2257 // fix TransformedText call to use refs
2259 // Revision 1.83 2004/09/08 13:38:00 rurban
2260 // improve loadfile stability by using markup=2 as default for undefined markup-style.
2261 // use more refs for huge objects.
2262 // fix debug=static issue in WikiPluginCached
2264 // Revision 1.82 2004/09/06 12:08:49 rurban
2265 // memory_limit on unix workaround
2266 // VisualWiki: default autosize image
2268 // Revision 1.81 2004/09/06 08:28:00 rurban
2269 // rename genericQuery to genericSqlQuery
2271 // Revision 1.80 2004/07/09 13:05:34 rurban
2274 // Revision 1.79 2004/07/09 10:06:49 rurban
2275 // Use backend specific sortby and sortable_columns method, to be able to
2276 // select between native (Db backend) and custom (PageList) sorting.
2277 // Fixed PageList::AddPageList (missed the first)
2278 // Added the author/creator.. name to AllPagesBy...
2279 // display no pages if none matched.
2280 // Improved dba and file sortby().
2281 // Use &$request reference
2283 // Revision 1.78 2004/07/08 21:32:35 rurban
2284 // Prevent from more warnings, minor db and sort optimizations
2286 // Revision 1.77 2004/07/08 19:04:42 rurban
2287 // more unittest fixes (file backend, metadata RatingsDb)
2289 // Revision 1.76 2004/07/08 17:31:43 rurban
2290 // improve numPages for file (fixing AllPagesTest)
2292 // Revision 1.75 2004/07/05 13:56:22 rurban
2293 // sqlite autoincrement fix
2295 // Revision 1.74 2004/07/03 16:51:05 rurban
2296 // optional DBADMIN_USER:DBADMIN_PASSWD for action=upgrade (if no ALTER permission)
2297 // added atomic mysql REPLACE for PearDB as in ADODB
2298 // fixed _lock_tables typo links => link
2299 // fixes unserialize ADODB bug in line 180
2301 // Revision 1.73 2004/06/29 08:52:22 rurban
2302 // Use ...version() $need_content argument in WikiDB also:
2303 // To reduce the memory footprint for larger sets of pagelists,
2304 // we don't cache the content (only true or false) and
2305 // we purge the pagedata (_cached_html) also.
2306 // _cached_html is only cached for the current pagename.
2307 // => Vastly improved page existance check, ACL check, ...
2309 // Now only PagedList info=content or size needs the whole content, esp. if sortable.
2311 // Revision 1.72 2004/06/25 14:15:08 rurban
2312 // reduce memory footprint by caching only requested pagedate content (improving most page iterators)
2314 // Revision 1.71 2004/06/21 16:22:30 rurban
2315 // add DEFAULT_DUMP_DIR and HTML_DUMP_DIR constants, for easier cmdline dumps,
2316 // fixed dumping buttons locally (images/buttons/),
2317 // support pages arg for dumphtml,
2318 // optional directory arg for dumpserial + dumphtml,
2319 // fix a AllPages warning,
2320 // show dump warnings/errors on DEBUG,
2321 // don't warn just ignore on wikilens pagelist columns, if not loaded.
2322 // RateIt pagelist column is called "rating", not "ratingwidget" (Dan?)
2324 // Revision 1.70 2004/06/18 14:39:31 rurban
2325 // actually check USECACHE
2327 // Revision 1.69 2004/06/13 15:33:20 rurban
2328 // new support for arguments owner, author, creator in most relevant
2329 // PageList plugins. in WikiAdmin* via preSelectS()
2331 // Revision 1.68 2004/06/08 21:03:20 rurban
2332 // updated RssParser for XmlParser quirks (store parser object params in globals)
2334 // Revision 1.67 2004/06/07 19:12:49 rurban
2335 // fixed rename version=0, bug #966284
2337 // Revision 1.66 2004/06/07 18:57:27 rurban
2338 // fix rename: Change pagename in all linked pages
2340 // Revision 1.65 2004/06/04 20:32:53 rurban
2341 // Several locale related improvements suggested by Pierrick Meignen
2342 // LDAP fix by John Cole
2343 // reanable admin check without ENABLE_PAGEPERM in the admin plugins
2345 // Revision 1.64 2004/06/04 16:50:00 rurban
2346 // add random quotes to empty pages
2348 // Revision 1.63 2004/06/04 11:58:38 rurban
2349 // added USE_TAGLINES
2351 // Revision 1.62 2004/06/03 22:24:41 rurban
2352 // reenable admin check on !ENABLE_PAGEPERM, honor s=Wildcard arg, fix warning after Remove
2354 // Revision 1.61 2004/06/02 17:13:48 rurban
2355 // fix getRevisionBefore assertion
2357 // Revision 1.60 2004/05/28 10:09:58 rurban
2358 // fix bug #962117, incorrect init of auth_dsn
2360 // Revision 1.59 2004/05/27 17:49:05 rurban
2361 // renamed DB_Session to DbSession (in CVS also)
2362 // added WikiDB->getParam and WikiDB->getAuthParam method to get rid of globals
2363 // remove leading slash in error message
2364 // added force_unlock parameter to File_Passwd (no return on stale locks)
2365 // fixed adodb session AffectedRows
2366 // added FileFinder helpers to unify local filenames and DATA_PATH names
2367 // editpage.php: new edit toolbar javascript on ENABLE_EDIT_TOOLBAR
2369 // Revision 1.58 2004/05/18 13:59:14 rurban
2370 // rename simpleQuery to genericQuery
2372 // Revision 1.57 2004/05/16 22:07:35 rurban
2373 // check more config-default and predefined constants
2374 // various PagePerm fixes:
2375 // fix default PagePerms, esp. edit and view for Bogo and Password users
2376 // implemented Creator and Owner
2377 // BOGOUSERS renamed to BOGOUSER
2378 // fixed syntax errors in signin.tmpl
2380 // Revision 1.56 2004/05/15 22:54:49 rurban
2381 // fixed important WikiDB bug with DEBUG > 0: wrong assertion
2382 // improved SetAcl (works) and PagePerms, some WikiGroup helpers.
2384 // Revision 1.55 2004/05/12 19:27:47 rurban
2385 // revert wrong inline optimization.
2387 // Revision 1.54 2004/05/12 10:49:55 rurban
2388 // require_once fix for those libs which are loaded before FileFinder and
2389 // its automatic include_path fix, and where require_once doesn't grok
2390 // dirname(__FILE__) != './lib'
2391 // upgrade fix with PearDB
2392 // navbar.tmpl: remove spaces for IE button alignment
2394 // Revision 1.53 2004/05/08 14:06:12 rurban
2395 // new support for inlined image attributes: [image.jpg size=50x30 align=right]
2396 // minor stability and portability fixes
2398 // Revision 1.52 2004/05/06 19:26:16 rurban
2399 // improve stability, trying to find the InlineParser endless loop on sf.net
2401 // remove end-of-zip comments to fix sf.net bug #777278 and probably #859628
2403 // Revision 1.51 2004/05/06 17:30:37 rurban
2404 // CategoryGroup: oops, dos2unix eol
2405 // improved phpwiki_version:
2406 // pre -= .0001 (1.3.10pre: 1030.099)
2407 // -p1 += .001 (1.3.9-p1: 1030.091)
2408 // improved InstallTable for mysql and generic SQL versions and all newer tables so far.
2409 // abstracted more ADODB/PearDB methods for action=upgrade stuff:
2410 // backend->backendType(), backend->database(),
2411 // backend->listOfFields(),
2412 // backend->listOfTables(),
2414 // Revision 1.50 2004/05/04 22:34:25 rurban
2417 // Revision 1.49 2004/05/03 11:16:40 rurban
2418 // fixed sendPageChangeNotification
2419 // subject rewording
2421 // Revision 1.48 2004/04/29 23:03:54 rurban
2422 // fixed sf.net bug #940996
2424 // Revision 1.47 2004/04/29 19:39:44 rurban
2425 // special support for formatted plugins (one-liners)
2426 // like <small><plugin BlaBla ></small>
2427 // iter->asArray() helper for PopularNearby
2428 // db_session for older php's (no &func() allowed)
2430 // Revision 1.46 2004/04/26 20:44:34 rurban
2431 // locking table specific for better databases
2433 // Revision 1.45 2004/04/20 00:06:03 rurban
2434 // themable paging support
2436 // Revision 1.44 2004/04/19 18:27:45 rurban
2437 // Prevent from some PHP5 warnings (ref args, no :: object init)
2438 // php5 runs now through, just one wrong XmlElement object init missing
2439 // Removed unneccesary UpgradeUser lines
2440 // Changed WikiLink to omit version if current (RecentChanges)
2442 // Revision 1.43 2004/04/18 01:34:20 rurban
2443 // protect most_popular from sortby=mtime
2445 // Revision 1.42 2004/04/18 01:11:51 rurban
2446 // more numeric pagename fixes.
2447 // fixed action=upload with merge conflict warnings.
2448 // charset changed from constant to global (dynamic utf-8 switching)
2454 // c-basic-offset: 4
2455 // c-hanging-comment-ender-p: nil
2456 // indent-tabs-mode: nil