diff options
Diffstat (limited to 'platform/www/lib/plugins/meta/syntax.php')
| -rw-r--r-- | platform/www/lib/plugins/meta/syntax.php | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/platform/www/lib/plugins/meta/syntax.php b/platform/www/lib/plugins/meta/syntax.php new file mode 100644 index 0000000..733e5b5 --- /dev/null +++ b/platform/www/lib/plugins/meta/syntax.php @@ -0,0 +1,205 @@ +<?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: |