<?php

/**
 * @name        Upload Module
 * @author      Philipp Maurer
 * @author      Tobias Reich
 * @copyright   2014 by Philipp Maurer, Tobias Reich
 */

if (!defined('LYCHEE')) exit('Error: Direct access is not allowed!');

function upload($files, $albumID) {

	global $database;

	switch($albumID) {
		// s for public (share)
	    case 's':
	        $public = 1;
	        $star = 0;
	        $albumID = 0;
	        break;
	    // f for starred (fav)
	    case 'f':
	        $star = 1;
	        $public = 0;
	        $albumID = 0;
	        break;
	    default:
	        $star = 0;
	        $public = 0;
	}

	foreach ($files as $file) {

	    $id = str_replace('.', '', microtime(true));
	    while(strlen($id)<14) $id .= 0;

	    $tmp_name = $file["tmp_name"];

	    $type = getimagesize($tmp_name);
	    if (($type[2]!=1)&&($type[2]!=2)&&($type[2]!=3)) return false;
	    $data = array_reverse(explode('.', $file["name"]));
	    $data = $data[0];

	    $photo_name = md5($id) . ".$data";

	    // Import if not uploaded via web
	    if (!is_uploaded_file($tmp_name)) {
	    	if (copy($tmp_name, "../uploads/big/" . $photo_name)) {
				unlink($tmp_name);
				$import_name = $tmp_name;
			}
	    } else {
		    move_uploaded_file($tmp_name, "../uploads/big/" . $photo_name);
		    $import_name = "";
	    }

	    // Read infos
	    $info = getInfo($photo_name);

	    // Set orientation based on EXIF data
	    if (isset($info['orientation'])&&isset($info['width'])&&isset($info['height'])) {

	    	if ($info['orientation']==3||$info['orientation']==6||$info['orientation']==8) {

		    	$newWidth = $info['width'];
		    	$newHeight = $info['height'];

		    	$sourceImg = imagecreatefromjpeg("../uploads/big/$photo_name");

		    	switch($info['orientation']){

					case 2:
						// mirror
						// not yet implemented
						break;

					case 3:
						$sourceImg = imagerotate($sourceImg, -180, 0);
						break;

					case 4:
						// rotate 180 and mirror
						// not yet implemented
					    break;

					case 5:
						// rotate 90 and mirror
						// not yet implemented
					    break;

					case 6:
						$sourceImg = imagerotate($sourceImg, -90, 0);
						$newWidth = $info['height'];
						$newHeight = $info['width'];
					    break;

					case 7:
						// rotate -90 and mirror
						// not yet implemented
					    break;

					case 8:
						$sourceImg = imagerotate($sourceImg, 90, 0);
						$newWidth = $info['height'];
						$newHeight = $info['width'];
					    break;

		    	}

		    	$newSourceImg = imagecreatetruecolor($newWidth, $newHeight);

		    	imagecopyresampled($newSourceImg, $sourceImg, 0, 0, 0, 0, $newWidth, $newHeight, $newWidth, $newHeight);
		    	imagejpeg($newSourceImg, "../uploads/big/$photo_name", 100);

	    	}

	    }

	    // Create Thumb
	    if (!createThumb($photo_name)) return false;

	    // Save to DB
	    $query = "INSERT INTO lychee_photos (id, title, url, description, type, width, height, size, sysdate, systime, iso, aperture, make, model, shutter, focal, takedate, taketime, thumbUrl, album, public, star, import_name)
	        VALUES (
	        	'" . $id . "',
	        	'" . $info['title'] . "',
	        	'" . $photo_name . "',
	        	'" . $info['description'] . "',
	        	'" . $info['type'] . "',
	        	'" . $info['width'] . "',
	        	'" . $info['height'] . "',
	        	'" . $info['size'] . "',
	        	'" . $info['date'] . "',
	        	'" . $info['time'] . "',
	        	'" . $info['iso'] . "',
	        	'" . $info['aperture'] . "',
	        	'" . $info['make'] . "',
	        	'" . $info['model'] . "',
	        	'" . $info['shutter'] . "',
	        	'" . $info['focal'] . "',
	        	'" . $info['takeDate'] . "',
	        	'" . $info['takeTime'] . "',
	        	'" . md5($id) . ".jpeg',
	        	'" . $albumID . "',
	        	'" . $public . "',
	        	'" . $star . "',
	        	'" . $import_name . "');";
	    $result = $database->query($query);

	    if (!$result) return false;

    }

    return true;

}

function getInfo($filename) {

	global $database;

	$url = '../uploads/big/' . $filename;
	$iptcArray = array();
	$info = getimagesize($url, $iptcArray);

	// General information
	$return['type'] = $info['mime'];
	$return['width'] = $info[0];
	$return['height'] = $info[1];
	$return['date'] = date('d.m.Y', filectime($url));
	$return['time'] = date('H:i:s', filectime($url));

	// Size
	$size = filesize($url)/1024;
	if ($size>=1024) $return['size'] = round($size/1024, 1) . ' MB';
	else $return['size'] = round($size, 1) . ' KB';

	// IPTC Metadata Fallback
	$return['title'] = '';
	$return['description'] = '';

	// IPTC Metadata
	$iptcInfo = iptcparse($iptcArray['APP13']);
	if (is_array($iptcInfo)) {

		$temp = $iptcInfo['2#105'][0];
		if (isset($temp)&&strlen($temp)>0) $return['title'] = $temp;

		$temp = $iptcInfo['2#120'][0];
		if (isset($temp)&&strlen($temp)>0) $return['description'] = $temp;

	}

	// EXIF Metadata Fallback
	$return['orientation'] = '';
	$return['iso'] = '';
	$return['aperture'] = '';
	$return['make'] = '';
	$return['model'] = '';
	$return['shutter'] = '';
	$return['focal'] = '';
	$return['takeDate'] = '';
	$return['takeTime'] = '';

	// EXIF Metadata
    if ($info['mime']=='image/jpeg'&&function_exists('exif_read_data')&&@exif_read_data($url, 'EXIF', 0)) {

        $exif = exif_read_data($url, 'EXIF', 0);

        $temp = $exif['Orientation'];
        if (isset($temp)) $return['orientation'] = $temp;

        $temp = $exif['ISOSpeedRatings'];
        if (isset($temp)) $return['iso'] = $temp;

        $temp = $exif['COMPUTED']['ApertureFNumber'];
        if (isset($temp)) $return['aperture'] = $temp;

        $temp = $exif['Make'];
        if (isset($temp)) $return['make'] = $exif['Make'];

        $temp = $exif['Model'];
        if (isset($temp)) $return['model'] = $temp;

        $temp = $exif['ExposureTime'];
        if (isset($temp)) $return['shutter'] = $exif['ExposureTime'] . ' Sec.';

        $temp = $exif['FocalLength'];
        if (isset($temp)) $return['focal'] = ($temp/1) . ' mm';

        $temp = $exif['DateTimeOriginal'];
        if (isset($temp)) {
            $exifDate = explode(' ', $temp);
            $date = explode(':', $exifDate[0]);
            $return['takeDate'] = $date[2].'.'.$date[1].'.'.$date[0];
            $return['takeTime'] = $exifDate[1];
        }

    }

	// Security
	foreach(array_keys($return) as $key) $return[$key] = mysqli_real_escape_string($database, $return[$key]);

    return $return;

}

function createThumb($filename, $width = 200, $height = 200) {

	global $settings;

    $url = "../uploads/big/$filename";
    $info = getimagesize($url);

    $photoName = explode(".", $filename);
    $newUrl = "../uploads/thumb/".$photoName[0].".jpeg";
    $newUrl2x = "../uploads/thumb/".$photoName[0]."@2x.jpeg";

    // Set position and size
    $thumb = imagecreatetruecolor($width, $height);
    $thumb2x = imagecreatetruecolor($width*2, $height*2);
    if ($info[0]<$info[1]) {
        $newSize = $info[0];
        $startWidth = 0;
        $startHeight = $info[1]/2 - $info[0]/2;
    } else {
        $newSize = $info[1];
        $startWidth = $info[0]/2 - $info[1]/2;
        $startHeight = 0;
    }

    // Create new image
    switch($info['mime']) {
        case 'image/jpeg': $sourceImg = imagecreatefromjpeg($url); break;
        case 'image/png': $sourceImg = imagecreatefrompng($url); break;
        case 'image/gif': $sourceImg = imagecreatefromgif($url); break;
        default: return false;
    }

    imagecopyresampled($thumb,$sourceImg,0,0,$startWidth,$startHeight,$width,$height,$newSize,$newSize);
    imagecopyresampled($thumb2x,$sourceImg,0,0,$startWidth,$startHeight,$width*2,$height*2,$newSize,$newSize);

    imagejpeg($thumb,$newUrl,$settings['thumbQuality']);
    imagejpeg($thumb2x,$newUrl2x,$settings['thumbQuality']);

    return true;

}

function importPhoto($name, $albumID = 0) {

	$tmp_name = "../uploads/import/$name";
	$info = getimagesize($tmp_name);
	$size = filesize($tmp_name);
	$nameFile = array(array());
	$nameFile[0]['name'] = $name;
	$nameFile[0]['type'] = $info['mime'];
	$nameFile[0]['tmp_name'] = $tmp_name;
	$nameFile[0]['error'] = 0;
	$nameFile[0]['size'] = $size;

	if (upload($nameFile, $albumID)) return true;

	return false;

}

function importUrl($url, $albumID = 0) {

	if (strpos($url, ',')!==false) {

		// Multiple photos

		$url = explode(',', $url);

		foreach ($url as &$key) {

			$key = str_replace(' ', '%20', $key);

			if (@getimagesize($key)) {

				$pathinfo = pathinfo($key);
				$filename = $pathinfo['filename'].".".$pathinfo['extension'];
				$tmp_name = "../uploads/import/$filename";
				copy($key, $tmp_name);

			}

		}

		return importServer($albumID);

	} else {

		// One photo

		$url = str_replace(' ', '%20', $url);

		if (@getimagesize($url)) {

			$pathinfo = pathinfo($url);
			$filename = $pathinfo['filename'].".".$pathinfo['extension'];
			$tmp_name = "../uploads/import/$filename";
			copy($url, $tmp_name);
			return importPhoto($filename, $albumID);

		}

	}

	return false;

}

function importServer($albumID = 0) {

	global $database;

	$i = 0;
	$files = glob('../uploads/import/*');

	foreach ($files as $file) {

		if (@getimagesize($file)) {
			if (!importPhoto(basename($file), $albumID)) return false;
			$i++;
		}

	}

	if ($i===0) return "Warning: Folder empty!";
	return true;

}

?>