772 lines
20 KiB
PHP
772 lines
20 KiB
PHP
<?php
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/**
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* Utilities for handling pagenames
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*
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* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
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* @author Andreas Gohr <andi@splitbrain.org>
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* @todo Combine similar functions like {wiki,media,meta}FN()
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*/
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use dokuwiki\Utf8\PhpString;
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use dokuwiki\Utf8\Clean;
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use dokuwiki\File\Resolver;
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use dokuwiki\Extension\Event;
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use dokuwiki\ChangeLog\MediaChangeLog;
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use dokuwiki\ChangeLog\PageChangeLog;
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use dokuwiki\File\MediaResolver;
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use dokuwiki\File\PageResolver;
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/**
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* Fetch the an ID from request
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*
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* Uses either standard $_REQUEST variable or extracts it from
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* the full request URI when userewrite is set to 2
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*
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* For $param='id' $conf['start'] is returned if no id was found.
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* If the second parameter is true (default) the ID is cleaned.
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*
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* @param string $param the $_REQUEST variable name, default 'id'
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* @param bool $clean if true, ID is cleaned
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* @return string
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*/
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function getID($param = 'id', $clean = true)
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{
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/** @var Input $INPUT */
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global $INPUT;
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global $conf;
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global $ACT;
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$id = $INPUT->str($param);
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//construct page id from request URI
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if (empty($id) && $conf['userewrite'] == 2) {
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$request = $INPUT->server->str('REQUEST_URI');
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$script = '';
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//get the script URL
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if ($conf['basedir']) {
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$relpath = '';
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if ($param != 'id') {
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$relpath = 'lib/exe/';
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}
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$script = $conf['basedir'] . $relpath .
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PhpString::basename($INPUT->server->str('SCRIPT_FILENAME'));
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} elseif ($INPUT->server->str('PATH_INFO')) {
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$request = $INPUT->server->str('PATH_INFO');
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} elseif ($INPUT->server->str('SCRIPT_NAME')) {
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$script = $INPUT->server->str('SCRIPT_NAME');
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} elseif ($INPUT->server->str('DOCUMENT_ROOT') && $INPUT->server->str('SCRIPT_FILENAME')) {
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$script = preg_replace(
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'/^' . preg_quote($INPUT->server->str('DOCUMENT_ROOT'), '/') . '/',
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'',
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$INPUT->server->str('SCRIPT_FILENAME')
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);
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$script = '/' . $script;
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}
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//clean script and request (fixes a windows problem)
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$script = preg_replace('/\/\/+/', '/', $script);
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$request = preg_replace('/\/\/+/', '/', $request);
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//remove script URL and Querystring to gain the id
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if (preg_match('/^' . preg_quote($script, '/') . '(.*)/', $request, $match)) {
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$id = preg_replace('/\?.*/', '', $match[1]);
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}
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$id = urldecode($id);
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//strip leading slashes
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$id = preg_replace('!^/+!', '', $id);
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}
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// Namespace autolinking from URL
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if (str_ends_with($id, ':') || ($conf['useslash'] && str_ends_with($id, '/'))) {
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if (page_exists($id . $conf['start'])) {
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// start page inside namespace
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$id .= $conf['start'];
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} elseif (page_exists($id . noNS(cleanID($id)))) {
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// page named like the NS inside the NS
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$id .= noNS(cleanID($id));
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} elseif (page_exists($id)) {
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// page like namespace exists
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$id = substr($id, 0, -1);
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} else {
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// fall back to default
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$id .= $conf['start'];
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}
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if (isset($ACT) && $ACT === 'show') {
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$urlParameters = $_GET;
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if (isset($urlParameters['id'])) {
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unset($urlParameters['id']);
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}
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send_redirect(wl($id, $urlParameters, true, '&'));
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}
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}
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if ($clean) $id = cleanID($id);
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if ($id === '' && $param == 'id') $id = $conf['start'];
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return $id;
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}
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/**
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* Remove unwanted chars from ID
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*
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* Cleans a given ID to only use allowed characters. Accented characters are
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* converted to unaccented ones
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*
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* @param string $raw_id The pageid to clean
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* @param boolean $ascii Force ASCII
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* @return string cleaned id
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*/
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function cleanID($raw_id, $ascii = false)
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{
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global $conf;
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static $sepcharpat = null;
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global $cache_cleanid;
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$cache = & $cache_cleanid;
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// check if it's already in the memory cache
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if (!$ascii && isset($cache[(string)$raw_id])) {
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return $cache[(string)$raw_id];
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}
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$sepchar = $conf['sepchar'];
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if ($sepcharpat == null) // build string only once to save clock cycles
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$sepcharpat = '#\\' . $sepchar . '+#';
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$id = trim((string)$raw_id);
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$id = PhpString::strtolower($id);
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//alternative namespace seperator
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if ($conf['useslash']) {
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$id = strtr($id, ';/', '::');
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} else {
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$id = strtr($id, ';/', ':' . $sepchar);
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}
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if ($conf['deaccent'] == 2 || $ascii) $id = Clean::romanize($id);
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if ($conf['deaccent'] || $ascii) $id = Clean::deaccent($id, -1);
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//remove specials
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$id = Clean::stripspecials($id, $sepchar, '\*');
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if ($ascii) $id = Clean::strip($id);
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//clean up
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$id = preg_replace($sepcharpat, $sepchar, $id);
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$id = preg_replace('#:+#', ':', $id);
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$id = trim($id, ':._-');
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$id = preg_replace('#:[:\._\-]+#', ':', $id);
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$id = preg_replace('#[:\._\-]+:#', ':', $id);
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if (!$ascii) $cache[(string)$raw_id] = $id;
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return($id);
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}
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/**
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* Return namespacepart of a wiki ID
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*
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* @param string $id
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* @return string|false the namespace part or false if the given ID has no namespace (root)
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*/
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function getNS($id)
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{
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$pos = strrpos((string)$id, ':');
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if ($pos !== false) {
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return substr((string)$id, 0, $pos);
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}
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return false;
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}
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/**
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* Returns the ID without the namespace
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*
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* @param string $id
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* @return string
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*/
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function noNS($id)
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{
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$pos = strrpos($id, ':');
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if ($pos !== false) {
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return substr($id, $pos + 1);
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} else {
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return $id;
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}
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}
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/**
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* Returns the current namespace
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*
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* @author Nathan Fritz <fritzn@crown.edu>
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*
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* @param string $id
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* @return string
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*/
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function curNS($id)
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{
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return noNS(getNS($id));
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}
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/**
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* Returns the ID without the namespace or current namespace for 'start' pages
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*
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* @author Nathan Fritz <fritzn@crown.edu>
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*
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* @param string $id
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* @return string
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*/
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function noNSorNS($id)
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{
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global $conf;
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$p = noNS($id);
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if ($p === $conf['start'] || $p === false || $p === '') {
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$p = curNS($id);
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if ($p === false || $p === '') {
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return $conf['start'];
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}
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}
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return $p;
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}
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/**
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* Creates a XHTML valid linkid from a given headline title
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*
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* @param string $title The headline title
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* @param array|bool $check Existing IDs
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* @return string the title
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function sectionID($title, &$check)
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{
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$title = str_replace([':', '.'], '', cleanID($title));
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$new = ltrim($title, '0123456789_-');
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if (empty($new)) {
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$title = 'section' . preg_replace('/[^0-9]+/', '', $title); //keep numbers from headline
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} else {
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$title = $new;
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}
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if (is_array($check)) {
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$suffix = 0;
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$candidateTitle = $title;
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while (in_array($candidateTitle, $check)) {
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$candidateTitle = $title . ++$suffix;
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}
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$check [] = $candidateTitle;
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return $candidateTitle;
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} else {
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return $title;
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}
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}
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/**
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* Wiki page existence check
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*
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* parameters as for wikiFN
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*
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* @author Chris Smith <chris@jalakai.co.uk>
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*
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* @param string $id page id
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* @param string|int $rev empty or revision timestamp
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* @param bool $clean flag indicating that $id should be cleaned (see wikiFN as well)
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* @param bool $date_at
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* @return bool exists?
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*/
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function page_exists($id, $rev = '', $clean = true, $date_at = false)
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{
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$id = (explode('#', $id, 2))[0]; // #3608
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if ($rev !== '' && $date_at) {
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$pagelog = new PageChangeLog($id);
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$pagelog_rev = $pagelog->getLastRevisionAt($rev);
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if ($pagelog_rev !== false)
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$rev = $pagelog_rev;
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}
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return file_exists(wikiFN($id, $rev, $clean));
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}
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/**
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* Media existence check
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*
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* @param string $id page id
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* @param string|int $rev empty or revision timestamp
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* @param bool $clean flag indicating that $id should be cleaned (see mediaFN as well)
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* @param bool $date_at
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* @return bool exists?
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*/
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function media_exists($id, $rev = '', $clean = true, $date_at = false)
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{
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if ($rev !== '' && $date_at) {
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$changeLog = new MediaChangeLog($id);
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$changelog_rev = $changeLog->getLastRevisionAt($rev);
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if ($changelog_rev !== false) {
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$rev = $changelog_rev;
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}
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}
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return file_exists(mediaFN($id, $rev, $clean));
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}
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/**
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* returns the full path to the datafile specified by ID and optional revision
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*
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* The filename is URL encoded to protect Unicode chars
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*
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* @param $raw_id string id of wikipage
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* @param $rev int|string page revision, empty string for current
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* @param $clean bool flag indicating that $raw_id should be cleaned. Only set to false
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* when $id is guaranteed to have been cleaned already.
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* @return string full path
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function wikiFN($raw_id, $rev = '', $clean = true)
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{
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global $conf;
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global $cache_wikifn;
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$cache = & $cache_wikifn;
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$id = $raw_id;
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if ($clean) $id = cleanID($id);
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$id = str_replace(':', '/', $id);
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if (isset($cache[$id]) && isset($cache[$id][$rev])) {
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return $cache[$id][$rev];
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}
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if (empty($rev)) {
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$fn = $conf['datadir'] . '/' . utf8_encodeFN($id) . '.txt';
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} else {
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$fn = $conf['olddir'] . '/' . utf8_encodeFN($id) . '.' . $rev . '.txt';
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if ($conf['compression']) {
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//test for extensions here, we want to read both compressions
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if (file_exists($fn . '.gz')) {
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$fn .= '.gz';
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} elseif (file_exists($fn . '.bz2')) {
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$fn .= '.bz2';
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} else {
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//file doesnt exist yet, so we take the configured extension
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$fn .= '.' . $conf['compression'];
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}
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}
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}
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if (!isset($cache[$id])) {
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$cache[$id] = [];
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}
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$cache[$id][$rev] = $fn;
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return $fn;
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}
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/**
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* Returns the full path to the file for locking the page while editing.
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*
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* @author Ben Coburn <btcoburn@silicodon.net>
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*
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* @param string $id page id
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* @return string full path
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*/
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function wikiLockFN($id)
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{
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global $conf;
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return $conf['lockdir'] . '/' . md5(cleanID($id)) . '.lock';
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}
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/**
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* returns the full path to the meta file specified by ID and extension
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*
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* @author Steven Danz <steven-danz@kc.rr.com>
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*
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* @param string $id page id
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* @param string $ext file extension
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* @return string full path
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*/
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function metaFN($id, $ext)
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{
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global $conf;
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$id = cleanID($id);
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$id = str_replace(':', '/', $id);
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$fn = $conf['metadir'] . '/' . utf8_encodeFN($id) . $ext;
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return $fn;
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}
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/**
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* returns the full path to the media's meta file specified by ID and extension
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*
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* @author Kate Arzamastseva <pshns@ukr.net>
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*
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* @param string $id media id
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* @param string $ext extension of media
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* @return string
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*/
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function mediaMetaFN($id, $ext)
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{
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global $conf;
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$id = cleanID($id);
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$id = str_replace(':', '/', $id);
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$fn = $conf['mediametadir'] . '/' . utf8_encodeFN($id) . $ext;
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return $fn;
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}
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/**
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* returns an array of full paths to all metafiles of a given ID
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*
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* @author Esther Brunner <esther@kaffeehaus.ch>
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* @author Michael Hamann <michael@content-space.de>
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*
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* @param string $id page id
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* @return array
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*/
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function metaFiles($id)
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{
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$basename = metaFN($id, '');
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$files = glob($basename . '.*', GLOB_MARK);
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// filter files like foo.bar.meta when $id == 'foo'
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return $files ? preg_grep('/^' . preg_quote($basename, '/') . '\.[^.\/]*$/u', $files) : [];
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}
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/**
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* returns the full path to the mediafile specified by ID
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*
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* The filename is URL encoded to protect Unicode chars
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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* @author Kate Arzamastseva <pshns@ukr.net>
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*
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* @param string $id media id
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* @param string|int $rev empty string or revision timestamp
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* @param bool $clean
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*
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* @return string full path
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*/
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function mediaFN($id, $rev = '', $clean = true)
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{
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global $conf;
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if ($clean) $id = cleanID($id);
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$id = str_replace(':', '/', $id);
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if (empty($rev)) {
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$fn = $conf['mediadir'] . '/' . utf8_encodeFN($id);
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} else {
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$ext = mimetype($id);
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$name = substr($id, 0, -1 * strlen($ext[0]) - 1);
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$fn = $conf['mediaolddir'] . '/' . utf8_encodeFN($name . '.' . ( (int) $rev ) . '.' . $ext[0]);
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}
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return $fn;
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}
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/**
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* Returns the full filepath to a localized file if local
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* version isn't found the english one is returned
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*
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* @param string $id The id of the local file
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* @param string $ext The file extension (usually txt)
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* @return string full filepath to localized file
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function localeFN($id, $ext = 'txt')
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{
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global $conf;
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$file = DOKU_CONF . 'lang/' . $conf['lang'] . '/' . $id . '.' . $ext;
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if (!file_exists($file)) {
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$file = DOKU_INC . 'inc/lang/' . $conf['lang'] . '/' . $id . '.' . $ext;
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if (!file_exists($file)) {
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//fall back to english
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$file = DOKU_INC . 'inc/lang/en/' . $id . '.' . $ext;
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}
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}
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return $file;
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}
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/**
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* Resolve relative paths in IDs
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*
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* Do not call directly use resolve_mediaid or resolve_pageid
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* instead
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*
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* Partyly based on a cleanPath function found at
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* http://php.net/manual/en/function.realpath.php#57016
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*
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* @deprecated 2020-09-30
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* @param string $ns namespace which is context of id
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* @param string $id relative id
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* @param bool $clean flag indicating that id should be cleaned
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* @return string
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*/
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function resolve_id($ns, $id, $clean = true)
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{
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global $conf;
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dbg_deprecated(Resolver::class . ' and its children');
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// some pre cleaning for useslash:
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if ($conf['useslash']) $id = str_replace('/', ':', $id);
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// if the id starts with a dot we need to handle the
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// relative stuff
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if ($id && $id[0] == '.') {
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// normalize initial dots without a colon
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$id = preg_replace('/^((\.+:)*)(\.+)(?=[^:\.])/', '\1\3:', $id);
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// prepend the current namespace
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$id = $ns . ':' . $id;
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// cleanup relatives
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$result = [];
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$pathA = explode(':', $id);
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if (!$pathA[0]) $result[] = '';
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|
foreach ($pathA as $dir) {
|
|
if ($dir == '..') {
|
|
if (end($result) == '..') {
|
|
$result[] = '..';
|
|
} elseif (!array_pop($result)) {
|
|
$result[] = '..';
|
|
}
|
|
} elseif ($dir && $dir != '.') {
|
|
$result[] = $dir;
|
|
}
|
|
}
|
|
if (!end($pathA)) $result[] = '';
|
|
$id = implode(':', $result);
|
|
} elseif ($ns !== false && strpos($id, ':') === false) {
|
|
//if link contains no namespace. add current namespace (if any)
|
|
$id = $ns . ':' . $id;
|
|
}
|
|
|
|
if ($clean) $id = cleanID($id);
|
|
return $id;
|
|
}
|
|
|
|
/**
|
|
* Returns a full media id
|
|
*
|
|
* @param string $ns namespace which is context of id
|
|
* @param string &$media (reference) relative media id, updated to resolved id
|
|
* @param bool &$exists (reference) updated with existance of media
|
|
* @param int|string $rev
|
|
* @param bool $date_at
|
|
* @deprecated 2020-09-30
|
|
*/
|
|
function resolve_mediaid($ns, &$media, &$exists, $rev = '', $date_at = false)
|
|
{
|
|
dbg_deprecated(MediaResolver::class);
|
|
$resolver = new MediaResolver("$ns:deprecated");
|
|
$media = $resolver->resolveId($media, $rev, $date_at);
|
|
$exists = media_exists($media, $rev, false, $date_at);
|
|
}
|
|
|
|
/**
|
|
* Returns a full page id
|
|
*
|
|
* @deprecated 2020-09-30
|
|
* @param string $ns namespace which is context of id
|
|
* @param string &$page (reference) relative page id, updated to resolved id
|
|
* @param bool &$exists (reference) updated with existance of media
|
|
* @param string $rev
|
|
* @param bool $date_at
|
|
*/
|
|
function resolve_pageid($ns, &$page, &$exists, $rev = '', $date_at = false)
|
|
{
|
|
dbg_deprecated(PageResolver::class);
|
|
|
|
global $ID;
|
|
if (getNS($ID) == $ns) {
|
|
$context = $ID; // this is usually the case
|
|
} else {
|
|
$context = "$ns:deprecated"; // only used when a different context namespace was given
|
|
}
|
|
|
|
$resolver = new PageResolver($context);
|
|
$page = $resolver->resolveId($page, $rev, $date_at);
|
|
$exists = page_exists($page, $rev, false, $date_at);
|
|
}
|
|
|
|
/**
|
|
* Returns the name of a cachefile from given data
|
|
*
|
|
* The needed directory is created by this function!
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
*
|
|
* @param string $data This data is used to create a unique md5 name
|
|
* @param string $ext This is appended to the filename if given
|
|
* @return string The filename of the cachefile
|
|
*/
|
|
function getCacheName($data, $ext = '')
|
|
{
|
|
global $conf;
|
|
$md5 = md5($data);
|
|
$file = $conf['cachedir'] . '/' . $md5[0] . '/' . $md5 . $ext;
|
|
io_makeFileDir($file);
|
|
return $file;
|
|
}
|
|
|
|
/**
|
|
* Checks a pageid against $conf['hidepages']
|
|
*
|
|
* @author Andreas Gohr <gohr@cosmocode.de>
|
|
*
|
|
* @param string $id page id
|
|
* @return bool
|
|
*/
|
|
function isHiddenPage($id)
|
|
{
|
|
$data = ['id' => $id, 'hidden' => false];
|
|
Event::createAndTrigger('PAGEUTILS_ID_HIDEPAGE', $data, '_isHiddenPage');
|
|
return $data['hidden'];
|
|
}
|
|
|
|
/**
|
|
* callback checks if page is hidden
|
|
*
|
|
* @param array $data event data - see isHiddenPage()
|
|
*/
|
|
function _isHiddenPage(&$data)
|
|
{
|
|
global $conf;
|
|
global $ACT;
|
|
|
|
if ($data['hidden']) return;
|
|
if (empty($conf['hidepages'])) return;
|
|
if ($ACT == 'admin') return;
|
|
|
|
if (preg_match('/' . $conf['hidepages'] . '/ui', ':' . $data['id'])) {
|
|
$data['hidden'] = true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Reverse of isHiddenPage
|
|
*
|
|
* @author Andreas Gohr <gohr@cosmocode.de>
|
|
*
|
|
* @param string $id page id
|
|
* @return bool
|
|
*/
|
|
function isVisiblePage($id)
|
|
{
|
|
return !isHiddenPage($id);
|
|
}
|
|
|
|
/**
|
|
* Format an id for output to a user
|
|
*
|
|
* Namespaces are denoted by a trailing “:*”. The root namespace is
|
|
* “*”. Output is escaped.
|
|
*
|
|
* @author Adrian Lang <lang@cosmocode.de>
|
|
*
|
|
* @param string $id page id
|
|
* @return string
|
|
*/
|
|
function prettyprint_id($id)
|
|
{
|
|
if (!$id || $id === ':') {
|
|
return '*';
|
|
}
|
|
if (str_ends_with($id, ':')) {
|
|
$id .= '*';
|
|
}
|
|
return hsc($id);
|
|
}
|
|
|
|
/**
|
|
* Encode a UTF-8 filename to use on any filesystem
|
|
*
|
|
* Uses the 'fnencode' option to determine encoding
|
|
*
|
|
* When the second parameter is true the string will
|
|
* be encoded only if non ASCII characters are detected -
|
|
* This makes it safe to run it multiple times on the
|
|
* same string (default is true)
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
* @see urlencode
|
|
*
|
|
* @param string $file file name
|
|
* @param bool $safe if true, only encoded when non ASCII characters detected
|
|
* @return string
|
|
*/
|
|
function utf8_encodeFN($file, $safe = true)
|
|
{
|
|
global $conf;
|
|
if ($conf['fnencode'] == 'utf-8') return $file;
|
|
|
|
if ($safe && preg_match('#^[a-zA-Z0-9/_\-\.%]+$#', $file)) {
|
|
return $file;
|
|
}
|
|
|
|
if ($conf['fnencode'] == 'safe') {
|
|
return SafeFN::encode($file);
|
|
}
|
|
|
|
$file = urlencode($file);
|
|
$file = str_replace('%2F', '/', $file);
|
|
return $file;
|
|
}
|
|
|
|
/**
|
|
* Decode a filename back to UTF-8
|
|
*
|
|
* Uses the 'fnencode' option to determine encoding
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
* @see urldecode
|
|
*
|
|
* @param string $file file name
|
|
* @return string
|
|
*/
|
|
function utf8_decodeFN($file)
|
|
{
|
|
global $conf;
|
|
if ($conf['fnencode'] == 'utf-8') return $file;
|
|
|
|
if ($conf['fnencode'] == 'safe') {
|
|
return SafeFN::decode($file);
|
|
}
|
|
|
|
return urldecode($file);
|
|
}
|
|
|
|
/**
|
|
* Find a page in the current namespace (determined from $ID) or any
|
|
* higher namespace that can be accessed by the current user,
|
|
* this condition can be overriden by an optional parameter.
|
|
*
|
|
* Used for sidebars, but can be used other stuff as well
|
|
*
|
|
* @todo add event hook
|
|
*
|
|
* @param string $page the pagename you're looking for
|
|
* @param bool $useacl only return pages readable by the current user, false to ignore ACLs
|
|
* @return false|string the full page id of the found page, false if any
|
|
*/
|
|
function page_findnearest($page, $useacl = true)
|
|
{
|
|
if ((string) $page === '') return false;
|
|
global $ID;
|
|
|
|
$ns = $ID;
|
|
do {
|
|
$ns = getNS($ns);
|
|
$pageid = cleanID("$ns:$page");
|
|
if (page_exists($pageid) && (!$useacl || auth_quickaclcheck($pageid) >= AUTH_READ)) {
|
|
return $pageid;
|
|
}
|
|
} while ($ns !== false);
|
|
|
|
return false;
|
|
}
|