services-maps/php/library.php

<?php



function movie2locations($id) {

	$file = 'data/locations.data';
	if (file_exists($file)) {
		while (file_exists('data/locations.lock'))
			usleep(100000);
		$locations = unserialize(file_get_contents($file));
	}

	if (!$locations[$id]) {

		$point = array();

		$html = file_get_contents('http://imdb.com/title/tt' . $id . '/locations');

		$string = explode('&&locations=', $html);
		for ($i = 1; $i < count($string); $i++) {
			$key = count($point);
			$substring = explode('&&', $string[$i]);
			$point[$key]['location'] = urldecode($substring[0]);
			if (strstr($point[$key]['location'], ' - '))
				$point[$key]['location'] = substr($point[$key]['location'], strpos($point[$key]['location'], ' - ') + 3);
			$point[$key]['level'] = 0;
			$substring = explode('<dd>', $string[$i]);
			$substring = explode('</dd>', $substring[1]);
			$point[$key]['description'] = trim(strip_tags($substring[0]));
		}

		foreach ($point as $key => $value) {
			$point[$key]['coordinates'] = location2coordinates($point[$key]['location']);
			while ($point[$key]['coordinates']['latitude'] == 0 && $point[$key]['coordinates']['longitude'] == 0 && strstr($value['location'], ', ')) {
				$point[$key]['level']++;
				$value['location'] = substr($value['location'], strpos($value['location'], ', ') + 2);
				$point[$key]['coordinates'] = location2coordinates($value['location']);
			}
			/*
			if ($point[$key]['coordinates']['latitude'] != 0 || $point[$key]['coordinates']['longitude'] != 0) {
				$point_ = $point;
				foreach ($point_ as $key_ => $value_) {
					if ($key != $key_ && $point[$key]['latitude'] == $point_[$key_]['latitude'] && $point[$key]['longitude'] == $point_[$key_]['longitude']) {
						$md5 = md5($point[$key]['location']);
						$offset[$key]['latitude'] = (hexdec(substr($md5, 0, 1)) - 8) * 0.00001;
						$offset[$key]['longitude'] = (hexdec(substr($md5, 1, 1)) - 8) * 0.00001;
						$md5 = md5($point[$key_]['location']);
						$offset[$key_]['latitude'] = (hexdec(substr($md5, 0, 1)) - 8) * 0.00001;
						$offset[$key_]['longitude'] = (hexdec(substr($md5, 1, 1)) - 8) * 0.00001;
					}
				}
			}
			*/
		}

		/*
		foreach ($point as $key => $value) {
			if ($offset[$key]['latitude'])
				$point[$key]['coordinates']['latitude'] += $offset[$key]['latitude'];
			if ($offset[$key]['longitude'])
				$point[$key]['coordinates']['longitude'] += $offset[$key]['longitude'];
		}
		*/

		$locations[$id] = $point;

		// $locations_ = unserialize(file_get_contents($file));
		// $locations_[$id] = $locations[$id];
		// $locations = $locations_;
		ksort($locations);
		touch('data/locations.lock');
		file_put_contents($file, serialize($locations));
		unlink('data/locations.lock');

	}

	return $locations[$id];

}



function location2coordinates($location) {

	/*
		translates a location name to coordinates (latitude/longitude)
	*/

	$file = 'data/coordinates.data';
	if (file_exists($file)) {
		while (file_exists('data/coordinates.lock'))
			usleep(100000);
		$coordinates = unserialize(file_get_contents($file));
	}

	if (!$coordinates[$location]) {

		$query = urlencode($location);

		$f = fsockopen('maps.google.com', 80, $err_num, $err_str, 60);
		$string = 'GET /maps?q=' . $query . " HTTP/1.1\r\n";
		$string .= "Accept: */*\r\n";
		$string .= "Accept-Language: en\r\n";
		$string .= "User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en) AppleWebKit/418 (KHTML, like Gecko) Safari/417.9.3\r\n";
		$string .= "Connection: close\r\n";
		$string .= "Host: maps.google.com\r\n";
		$string .= "\r\n";
		fwrite($f, $string);
		$data = stream_get_contents($f);
		fclose($f);
		$code = substr($data, 9, 3);
		if ($code == 200)
			$html = substr($data, strpos($data, "\r\n\r\n") + 4);
		else
			$data = $code;

		$substr = substr($html, strpos($html, '{center:{lat:') + 13);
		$coordinates[$location]['latitude'] = substr($substr, 0, strpos($substr, ',lng:'));
		$substr = substr($substr, strpos($substr, ',lng:') + 5);
		$coordinates[$location]['longitude'] = substr($substr, 0, strpos($substr, '}'));
		$substr = substr($html, strpos($html, ',span:{lat:') + 11);
		$coordinates[$location]['spanLatitude'] = substr($substr, 0, strpos($substr, ',lng:'));
		$substr = substr($substr, strpos($substr, ',lng:') + 5);
		$coordinates[$location]['spanLongitude'] = substr($substr, 0, strpos($substr, '}'));

		if ($location != 'USA' && $coordinates[$location]['latitude'] == 37.0625 && $coordinates[$location]['longitude'] == -95.677068) {
			$coordinates[$location]['latitude'] = 0;
			$coordinates[$location]['longitude'] = 0;
			$coordinates[$location]['spanLatitude'] = 0;
			$coordinates[$location]['spanLongitude'] = 0;
		}

		// /*
		if (strstr($coordinates[$location]['latitude'] . $coordinates[$location]['longitude'] . $coordinates[$location]['spanLatitude'] . $coordinates[$location]['spanLongitude'], ' ')) {
			$coordinates[$location]['latitude'] = 0;
			$coordinates[$location]['longitude'] = 0;
			$coordinates[$location]['spanLatitude'] = 0;
			$coordinates[$location]['spanLongitude'] = 0;
		}
		// */

		/*
		foreach ($coordinates as $key => $value) {
			echo $key;
			if (strstr($value['latitude'] . $value['longitude'] . $value['spanLatitude'] . $value['spanLongitude'], ' ')) {
				die($key);
				unset($coordinates[$key]);
			}
		}
		*/
		ksort($coordinates);
		while (file_exists('data/coordinates.lock'))
			usleep(100000);
		touch('data/coordinates.lock');
		file_put_contents($file, serialize($coordinates));
		if (filesize($file) > 100000)
			copy($file, 'data/coordinates.backup.data');
		unlink('data/coordinates.lock');

	}

	return $coordinates[$location];

}



function coordinates2string($latitude, $longitude) {

	/*
		translates coordinates (latitude/longitude) to string (DD°MM'SS"X)
	*/

	$latitudeDegrees = floor(abs($latitude));
	$latitudeDecimals = abs($latitude) - $latitudeDegrees;
	$latitudeMinutes = str_pad(floor($latitudeDecimals * 60), 2, '0', STR_PAD_LEFT);
	$latitudeSeconds = str_pad(round(($latitudeDecimals - $latitudeMinutes / 60) * 3600), 2, '0', STR_PAD_LEFT);
	$latitudeHemisphere = str_repeat('N', $latitude >= 0) . str_repeat('S', $latitude < 0);

	$longitudeDegrees = floor(abs($longitude));
	$longitudeDecimals = abs($longitude) - $longitudeDegrees;
	$longitudeMinutes = str_pad(floor((abs($longitude) - $longitudeDegrees) * 60), 2, '0', STR_PAD_LEFT);
	$longitudeSeconds = str_pad(round(($longitudeDecimals - $longitudeMinutes / 60) * 3600), 2, '0', STR_PAD_LEFT);
	$longitudeHemisphere = str_repeat('W', $longitude <= 0) . str_repeat('E', $longitude > 0);

	$string = $latitudeDegrees . '&deg;' . $latitudeMinutes . '&apos;' . $latitudeSeconds . '&quot;' . $latitudeHemisphere;
	$string .= ' / ';
	$string .= $longitudeDegrees . '&deg;' . $longitudeMinutes . '&apos;' . $longitudeSeconds . '&quot;' . $longitudeHemisphere;

	return $string;

}



?>