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<?php
/**
* Meta Plugin: Sets metadata for the current page
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Esther Brunner <wikidesign@gmail.com>
*/
if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../../').'/');
if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
require_once(DOKU_PLUGIN.'syntax.php');
/**
* All DokuWiki plugins to extend the parser/rendering mechanism
* need to inherit from this class
*/
class syntax_plugin_meta extends DokuWiki_Syntax_Plugin
{
function getType()
{
return 'substition';
}
function getSort()
{
return 99;
}
function connectTo($mode)
{
$this->Lexer->addSpecialPattern('~~META:.*?~~',$mode,'plugin_meta');
}
/**
* Handle the match
*/
public function handle($match, $state, $pos, Doku_Handler $handler)
{
// strip ~~META: from start and ~~ from end
$match = substr($match,7,-2);
$data = array();
$pairs = explode('&', $match);
foreach ($pairs as $pair) {
list($key, $value) = explode('=', $pair, 2);
list($key, $subkey) = explode(' ', $key, 2);
if (trim($subkey)) {
$data[trim($key)][trim($subkey)] = trim($value);
} else {
$data[trim($key)] = trim($value);
}
}
$data = array_change_key_case($data, CASE_LOWER);
return $data;
}
/**
* Create output
*/
public function render($mode, Doku_Renderer $renderer, $data)
{
if ($mode == 'xthml') {
// don't output anything
return true;
} elseif ($mode == 'metadata') {
/** @var Doku_Renderer_metadata $renderer */
// do some validation / conversion for date metadata
if (isset($data['date'])) {
if (is_array($data['date'])) {
foreach ($data['date'] as $key => $date) {
$date = $this->convertDate(trim($date));
if (!$date) {
unset($data['date'][$key]);
} else {
$data['date'][$key] = $date;
}
}
} else {
unset($data['date']);
}
}
// now merge the arrays
$protected = array('description', 'date', 'contributor');
foreach ($data as $key => $value) {
// be careful with sub-arrays of $meta['relation']
if ($key == 'relation') {
foreach ($value as $subkey => $subvalue) {
if ($subkey == 'media') {
$renderer->meta[$key][$subkey][cleanID($subvalue)] = @file_exists(mediaFN($subvalue));
} elseif ($subkey == 'firstimage') {
/* The metadata renderer overrides the first image value with its internal value at the end.
Therefore the only thing we can do is setting this internal value by calling _firstimage.
This fails if there has already been a first image saved. */
$renderer->_firstimage($subvalue);
} else {
// for everything else assume that we have a page id
$renderer->meta[$key][$subkey][cleanID($subvalue)] = page_exists($subvalue);
}
}
} elseif (in_array($key, $protected)) {
// be careful with some sensitive arrays of $meta
if (is_array($renderer->meta) && is_array($value) && array_key_exists($key, $renderer->meta)) {
$renderer->meta[$key] = array_merge($renderer->meta[$key], (array)$value);
} else {
$renderer->meta[$key] = $value;
}
} else {
// no special treatment for the rest
$renderer->meta[$key] = $value;
}
}
}
}
/**
* converts YYYY-MM-DD[ hh:mm:ss][ -> [YYYY-MM-DD ]hh:mm:ss] to PHP timestamps
*/
private function convertDate($date)
{
list($start, $end) = explode('->', $date, 2);
if (!$end) {
// single date
list($date, $time) = explode(' ', trim($start), 2);
if (!preg_match('/\d{4}\-\d{2}\-\d{2}/', $date)) {
return false;
}
$time = $this->autocompleteTime($time);
return strtotime($date.' '.$time);
} else {
// duration
// start
list($startdate, $starttime) = explode(' ', trim($start), 2);
$startdate = $this->autocompleteDate($startdate);
if (!$startdate) {
return false;
}
$starttime = $this->autocompleteTime($starttime);
// end
list($enddate, $endtime) = explode(' ', trim($end), 2);
if (!trim($endtime)) {
// only time given
$end_date = $this->autocompleteDate($enddate, true);
if (!$end_date) {
$endtime = $this->autocompleteTime($enddate, true);
$enddate = $startdate;
} else {
// only date given
$enddate = $end_date;
$endtime = '23:59:59';
}
} else {
$enddate = $this->autocompleteDate($enddate, true);
if (!$enddate) {
$enddate = $startdate;
}
$endtime = $this->autocompleteTime($endtime, true);
}
$start = strtotime($startdate.' '.$starttime);
$end = strtotime($enddate.' '.$endtime);
if (!$start || !$end) {
return false;
}
return array('start' => $start, 'end' => $end);
}
}
private function autocompleteDate($date, $end=false)
{
if (!preg_match('/^\d{4}\-\d{2}\-\d{2}$/', $date)) {
if (preg_match('/^\d{4}\-\d{2}$/', $date)) {
// we don't know which month
return ($end) ? $date.'-28' : $date.'-01';
} elseif (preg_match('/^\d{4}$/', $date)) {
return ($end) ? $date.'-12-31' : $date.'-01-01';
} else {
return false;
}
} else {
return $date;
}
}
private function autocompleteTime($time, $end=false)
{
if (!preg_match('/^\d{2}:\d{2}:\d{2}$/', $time)) {
if (preg_match('/^\d{2}:\d{2}$/', $time)) {
return ($end) ? $time.':59' : $time.':00';
} elseif (preg_match('/^\d{2}$/', $time)) {
return ($end) ? $time.':59:59': $time.':00:00';
} else {
return ($end) ? '23:59:59' : '00:00:00';
}
} else {
return $time;
}
}
}
// vim:ts=4:sw=4:et:enc=utf-8:
|
