xref: /plugin/geotag/action.php (revision c3b1bf17a078cd6c15da9854c808977040c26793)

<?php
/*
 * Copyright (c) 2011 Mark C. Prins <mc.prins@gmail.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/**
 * DokuWiki Plugin geotag (Action Component)
 *
 * @license BSD
 * @author  Mark C. Prins <mc.prins@gmail.com>
 */
if (!defined('DOKU_INC')) die();

if (!defined('DOKU_LF')) define('DOKU_LF', "\n");
if (!defined('DOKU_TAB')) define('DOKU_TAB', "\t");
if (!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');

require_once DOKU_PLUGIN.'action.php';

class action_plugin_geotag extends DokuWiki_Action_Plugin {

    public function register(Doku_Event_Handler &$controller) {
		$controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE', $this, 'handle_metaheader_output');
		$controller->register_hook('IO_WIKIPAGE_WRITE', 'BEFORE', $this, 'ping', array());
    }

	public function handle_metaheader_output(Doku_Event &$event, $param) {
		global $ID;
		$geotags = p_get_metadata($ID,'geo',true);
		$region=$geotags['region'];
		$lat=$geotags['lat'];
		$lon=$geotags['lon'];
		$country=$geotags['country'];
		$placename=$geotags['placename'];

		if (!empty($region)) {$event->data['meta'][] = array('name' => 'geo.region','content' => $region,);}
		if (!empty($placename)) {$event->data['meta'][] = array('name' => 'geo.placename','content' => $placename,);}
		if (!(empty($lat)&&empty($lon))) {$event->data['meta'][] = array('name' => 'geo.position','content' => $lat.';'.$lon,);}
		if (!empty($country)) {$event->data['meta'][] = array('name' => 'geo.country','content' => $country,);}
		if (!(empty($lat)&&empty($lon))) {$event->data['meta'][] = array('name' => 'ICBM','content' => $lat.', '.$lon,);}
    }

	function ping(&$event, $param) {
	    if (!$this->getConf('geotag_pinggeourl')) return false;     // config says don't ping
        if ($event->data[3]) return false;                   // old revision saved
        if (@file_exists($event->data[0][0])) return false;  // file not new
        if (!$event->data[0][1]) return false;               // file is empty

        global $conf;

        $request = 'p='.DOKU_URL;
        $url = 'http://geourl.org/ping/';
        $header[] = 'Host: geourl.org';
        $header[] = 'Content-type: text/html';
        $header[] = 'Content-length: '.strlen($request);

        $http = new DokuHTTPClient();
        return $http->get($url, $request);
	}
}