function thumbnail($filename, $source_path, $target_path, $thumb_width, $thumb_height, $is_create, $is_crop = false, $crop_mode = 'center', $is_sharpen = false, $um_value = '80/0.5/3')
{
global $g5;
if (!$thumb_width && !$thumb_height) {
return;
}
$source_file = "{$source_path}/{$filename}";
if (!is_file($source_file)) {
// 원본 파일이 없다면
return;
}
$size = @getimagesize($source_file);
if ($size[2] < 1 || $size[2] > 3) {
// gif, jpg, png 에 대해서만 적용
return;
}
if (!is_dir($target_path)) {
@mkdir($target_path, G5_DIR_PERMISSION);
@chmod($target_path, G5_DIR_PERMISSION);
}
// 디렉토리가 존재하지 않거나 쓰기 권한이 없으면 썸네일 생성하지 않음
if (!(is_dir($target_path) && is_writable($target_path))) {
return '';
}
// Animated GIF는 썸네일 생성하지 않음
if ($size[2] == 1) {
if (is_animated_gif($source_file)) {
return basename($source_file);
}
}
$ext = array(1 => 'gif', 2 => 'jpg', 3 => 'png');
$thumb_filename = preg_replace("/\\.[^\\.]+\$/i", "", $filename);
// 확장자제거
$thumb_file = "{$target_path}/thumb-{$thumb_filename}_{$thumb_width}x{$thumb_height}." . $ext[$size[2]];
$thumb_time = @filemtime($thumb_file);
$source_time = @filemtime($source_file);
if (file_exists($thumb_file)) {
if ($is_create == false && $source_time < $thumb_time) {
return basename($thumb_file);
}
}
// 원본파일의 GD 이미지 생성
$src = null;
$degree = 0;
if ($size[2] == 1) {
$src = imagecreatefromgif($source_file);
$src_transparency = imagecolortransparent($src);
} else {
if ($size[2] == 2) {
$src = imagecreatefromjpeg($source_file);
if (function_exists('exif_read_data')) {
// exif 정보를 기준으로 회전각도 구함
$exif = @exif_read_data($source_file);
if (!empty($exif['Orientation'])) {
switch ($exif['Orientation']) {
case 8:
$degree = 90;
break;
case 3:
$degree = 180;
break;
case 6:
$degree = -90;
break;
}
// 회전각도 있으면 이미지 회전
if ($degree) {
$src = imagerotate($src, $degree, 0);
// 세로사진의 경우 가로, 세로 값 바꿈
if ($degree == 90 || $degree == -90) {
$tmp = $size;
$size[0] = $tmp[1];
$size[1] = $tmp[0];
}
}
}
}
} else {
if ($size[2] == 3) {
$src = imagecreatefrompng($source_file);
imagealphablending($src, true);
} else {
return;
}
}
}
if (!$src) {
return;
}
$is_large = true;
// width, height 설정
if ($thumb_width) {
if (!$thumb_height) {
$thumb_height = round($thumb_width * $size[1] / $size[0]);
} else {
if ($size[0] < $thumb_width || $size[1] < $thumb_height) {
$is_large = false;
}
}
} else {
if ($thumb_height) {
$thumb_width = round($thumb_height * $size[0] / $size[1]);
}
}
$dst_x = 0;
$dst_y = 0;
$src_x = 0;
$src_y = 0;
$dst_w = $thumb_width;
$dst_h = $thumb_height;
$src_w = $size[0];
$src_h = $size[1];
$ratio = $dst_h / $dst_w;
if ($is_large) {
// 크롭처리
if ($is_crop) {
switch ($crop_mode) {
case 'center':
if ($size[1] / $size[0] >= $ratio) {
$src_h = round($src_w * $ratio);
$src_y = round(($size[1] - $src_h) / 2);
} else {
$src_w = round($size[1] / $ratio);
$src_x = round(($size[0] - $src_w) / 2);
}
break;
default:
if ($size[1] / $size[0] >= $ratio) {
$src_h = round($src_w * $ratio);
} else {
$src_w = round($size[1] / $ratio);
}
break;
}
}
$dst = imagecreatetruecolor($dst_w, $dst_h);
if ($size[2] == 3) {
imagealphablending($dst, false);
imagesavealpha($dst, true);
} else {
if ($size[2] == 1) {
$palletsize = imagecolorstotal($src);
if ($src_transparency >= 0 && $src_transparency < $palletsize) {
$transparent_color = imagecolorsforindex($src, $src_transparency);
$current_transparent = imagecolorallocate($dst, $transparent_color['red'], $transparent_color['green'], $transparent_color['blue']);
imagefill($dst, 0, 0, $current_transparent);
imagecolortransparent($dst, $current_transparent);
}
}
}
} else {
$dst = imagecreatetruecolor($dst_w, $dst_h);
$bgcolor = imagecolorallocate($dst, 255, 255, 255);
// 배경색
if ($src_w < $dst_w) {
if ($src_h >= $dst_h) {
$dst_x = round(($dst_w - $src_w) / 2);
$src_h = $dst_h;
} else {
$dst_x = round(($dst_w - $src_w) / 2);
$dst_y = round(($dst_h - $src_h) / 2);
$dst_w = $src_w;
$dst_h = $src_h;
}
} else {
if ($src_h < $dst_h) {
$dst_y = round(($dst_h - $src_h) / 2);
$dst_h = $src_h;
$src_w = $dst_w;
}
}
if ($size[2] == 3) {
$bgcolor = imagecolorallocatealpha($dst, 0, 0, 0, 127);
imagefill($dst, 0, 0, $bgcolor);
imagealphablending($dst, false);
imagesavealpha($dst, true);
} else {
if ($size[2] == 1) {
$palletsize = imagecolorstotal($src);
if ($src_transparency >= 0 && $src_transparency < $palletsize) {
$transparent_color = imagecolorsforindex($src, $src_transparency);
$current_transparent = imagecolorallocate($dst, $transparent_color['red'], $transparent_color['green'], $transparent_color['blue']);
imagefill($dst, 0, 0, $current_transparent);
imagecolortransparent($dst, $current_transparent);
} else {
imagefill($dst, 0, 0, $bgcolor);
}
} else {
imagefill($dst, 0, 0, $bgcolor);
}
}
}
imagecopyresampled($dst, $src, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
// sharpen 적용
if ($is_sharpen && $is_large) {
$val = explode('/', $um_value);
UnsharpMask($dst, $val[0], $val[1], $val[2]);
}
if ($size[2] == 1) {
imagegif($dst, $thumb_file);
} else {
if ($size[2] == 3) {
if (!defined('G5_THUMB_PNG_COMPRESS')) {
$png_compress = 5;
} else {
$png_compress = G5_THUMB_PNG_COMPRESS;
}
imagepng($dst, $thumb_file, $png_compress);
} else {
if (!defined('G5_THUMB_JPG_QUALITY')) {
$jpg_quality = 90;
} else {
$jpg_quality = G5_THUMB_JPG_QUALITY;
}
imagejpeg($dst, $thumb_file, $jpg_quality);
}
}
chmod($thumb_file, G5_FILE_PERMISSION);
// 추후 삭제를 위하여 파일모드 변경
imagedestroy($src);
imagedestroy($dst);
return basename($thumb_file);
}
public function upload()
{
if ($GLOBALS['user_info']['id'] == 0) {
$data['status'] = 0;
//未登录
$data['msg'] = "请先登录";
ajax_return($data);
}
//上传处理
//创建avatar临时目录
if (!is_dir(APP_ROOT_PATH . "public/avatar")) {
@mkdir(APP_ROOT_PATH . "public/avatar");
@chmod(APP_ROOT_PATH . "public/avatar", 0777);
}
if (!is_dir(APP_ROOT_PATH . "public/avatar/temp")) {
@mkdir(APP_ROOT_PATH . "public/avatar/temp");
@chmod(APP_ROOT_PATH . "public/avatar/temp", 0777);
}
$upd_id = $id = intval($_REQUEST['uid']);
if (is_animated_gif($_FILES['avatar_file']['tmp_name'])) {
$rs = save_image_upload($_FILES, "avatar_file", "avatar/temp", $whs = array());
$im = get_spec_gif_anmation($rs['avatar_file']['path'], 48, 48);
$file_name = APP_ROOT_PATH . "public/avatar/temp/" . md5(NOW_TIME . $upd_id) . "_small.jpg";
file_put_contents($file_name, $im);
$img_result['avatar_file']['thumb']['small']['path'] = $file_name;
$im = get_spec_gif_anmation($rs['avatar_file']['path'], 120, 120);
$file_name = APP_ROOT_PATH . "public/avatar/temp/" . md5(NOW_TIME . $upd_id) . "_middle.jpg";
file_put_contents($file_name, $im);
$img_result['avatar_file']['thumb']['middle']['path'] = $file_name;
$im = get_spec_gif_anmation($rs['avatar_file']['path'], 200, 200);
$file_name = APP_ROOT_PATH . "public/avatar/temp/" . md5(NOW_TIME . $upd_id) . "_big.jpg";
file_put_contents($file_name, $im);
$img_result['avatar_file']['thumb']['big']['path'] = $file_name;
} else {
$img_result = save_image_upload($_FILES, "avatar_file", "avatar/temp", $whs = array('small' => array(48, 48, 1, 0), 'middle' => array(120, 120, 1, 0), 'big' => array(200, 200, 1, 0)));
}
//开始移动图片到相应位置
$uid = sprintf("%09d", $id);
$dir1 = substr($uid, 0, 3);
$dir2 = substr($uid, 3, 2);
$dir3 = substr($uid, 5, 2);
$path = $dir1 . '/' . $dir2 . '/' . $dir3;
//创建相应的目录
if (!is_dir(APP_ROOT_PATH . "public/avatar/" . $dir1)) {
@mkdir(APP_ROOT_PATH . "public/avatar/" . $dir1);
@chmod(APP_ROOT_PATH . "public/avatar/" . $dir1, 0777);
}
if (!is_dir(APP_ROOT_PATH . "public/avatar/" . $dir1 . '/' . $dir2)) {
@mkdir(APP_ROOT_PATH . "public/avatar/" . $dir1 . '/' . $dir2);
@chmod(APP_ROOT_PATH . "public/avatar/" . $dir1 . '/' . $dir2, 0777);
}
if (!is_dir(APP_ROOT_PATH . "public/avatar/" . $dir1 . '/' . $dir2 . '/' . $dir3)) {
@mkdir(APP_ROOT_PATH . "public/avatar/" . $dir1 . '/' . $dir2 . '/' . $dir3);
@chmod(APP_ROOT_PATH . "public/avatar/" . $dir1 . '/' . $dir2 . '/' . $dir3, 0777);
}
$id = str_pad($id, 2, "0", STR_PAD_LEFT);
$id = substr($id, -2);
$avatar_file_big = APP_ROOT_PATH . "public/avatar/" . $path . "/" . $id . "virtual_avatar_big.jpg";
$avatar_file_middle = APP_ROOT_PATH . "public/avatar/" . $path . "/" . $id . "virtual_avatar_middle.jpg";
$avatar_file_small = APP_ROOT_PATH . "public/avatar/" . $path . "/" . $id . "virtual_avatar_small.jpg";
@file_put_contents($avatar_file_big, file_get_contents($img_result['avatar_file']['thumb']['big']['path']));
@file_put_contents($avatar_file_middle, file_get_contents($img_result['avatar_file']['thumb']['middle']['path']));
@file_put_contents($avatar_file_small, file_get_contents($img_result['avatar_file']['thumb']['small']['path']));
@unlink($img_result['avatar_file']['thumb']['big']['path']);
@unlink($img_result['avatar_file']['thumb']['middle']['path']);
@unlink($img_result['avatar_file']['thumb']['small']['path']);
@unlink($img_result['avatar_file']['path']);
//上传成功更新用户头像的动态缓存
update_avatar($upd_id);
$data['status'] = 1;
$data['small_url'] = get_user_avatar($upd_id, "small");
$data['middle_url'] = get_user_avatar($upd_id, "middle");
$data['big_url'] = get_user_avatar($upd_id, "big");
ajax_return($data);
}
function apms_thumbnail($url, $thumb_width, $thumb_height, $is_create = false, $is_crop = true, $crop_mode = 'center', $is_sharpen = false, $um_value = '80/0.5/3')
{
if (!$url) {
return;
}
$thumb = array();
// 이미지 path 구함
$p = @parse_url($url);
if (strpos($p['path'], '/' . G5_DATA_DIR . '/') != 0) {
$data_path = preg_replace('/^\\/.*\\/' . G5_DATA_DIR . '/', '/' . G5_DATA_DIR, $p['path']);
} else {
$data_path = $p['path'];
}
$srcfile = G5_PATH . $data_path;
if (is_file($srcfile)) {
$size = @getimagesize($srcfile);
if (empty($size)) {
return;
}
// jpg 이면 exif 체크
if ($size[2] == 2 && function_exists('exif_read_data')) {
$degree = 0;
$exif = @exif_read_data($srcfile);
if (!empty($exif['Orientation'])) {
switch ($exif['Orientation']) {
case 8:
$degree = 90;
break;
case 3:
$degree = 180;
break;
case 6:
$degree = -90;
break;
}
// 세로사진의 경우 가로, 세로 값 바꿈
if ($degree == 90 || $degree == -90) {
$tmp = $size;
$size[0] = $tmp[1];
$size[1] = $tmp[0];
}
}
}
// 원본 width가 thumb_width보다 작다면
if ($size[0] <= $thumb_width) {
$thumb['src'] = $url;
$thumb['height'] = $size[1];
return $thumb;
}
// Animated GIF 체크
$is_animated = false;
if ($size[2] == 1) {
$is_animated = is_animated_gif($srcfile);
}
// 이미지 높이
$img_height = round($thumb_width * $size[1] / $size[0]);
$filename = basename($srcfile);
$filepath = dirname($srcfile);
// 썸네일 생성
if (!$is_animated) {
$thumb_file = thumbnail($filename, $filepath, $filepath, $thumb_width, $thumb_height, $is_create, $is_crop, $crop_mode, $is_sharpen, $um_value);
} else {
$thumb_file = $filename;
}
if (!$thumb_file) {
$thumb['src'] = $url;
$thumb['height'] = $size[1];
return $thumb;
}
$url = G5_URL . str_replace($filename, $thumb_file, $data_path);
}
$thumb['src'] = $url;
$thumb['height'] = $img_height;
return $thumb;
}
public function water($source, $water, $alpha = 80, $position = "0")
{
//检查文件是否存在
if (!file_exists($source) || !file_exists($water)) {
return false;
}
//图片信息
$sInfo = es_imagecls::getImageInfo($source);
$wInfo = es_imagecls::getImageInfo($water);
//如果图片小于水印图片，不生成图片
if ($sInfo["0"] < $wInfo["0"] || $sInfo['1'] < $wInfo['1']) {
return false;
}
if (is_animated_gif($source)) {
require_once APP_ROOT_PATH . "system/utils/gif_encoder.php";
require_once APP_ROOT_PATH . "system/utils/gif_reader.php";
$gif = new GIFReader();
$gif->load($source);
foreach ($gif->IMGS['frames'] as $k => $img) {
$im = imagecreatefromstring($gif->getgif($k));
//为im加水印
$sImage = $im;
$wCreateFun = "imagecreatefrom" . $wInfo['type'];
if (!function_exists($wCreateFun)) {
$wCreateFun = 'imagecreatefromjpeg';
}
$wImage = $wCreateFun($water);
//设定图像的混色模式
imagealphablending($wImage, true);
switch (intval($position)) {
case 0:
break;
//左上
//左上
case 1:
$posY = 0;
$posX = 0;
//生成混合图像
imagecopymerge($sImage, $wImage, $posX, $posY, 0, 0, $wInfo[0], $wInfo[1], $alpha);
break;
//右上
//右上
case 2:
$posY = 0;
$posX = $sInfo[0] - $wInfo[0];
//生成混合图像
imagecopymerge($sImage, $wImage, $posX, $posY, 0, 0, $wInfo[0], $wInfo[1], $alpha);
break;
//左下
//左下
case 3:
$posY = $sInfo[1] - $wInfo[1];
$posX = 0;
//生成混合图像
imagecopymerge($sImage, $wImage, $posX, $posY, 0, 0, $wInfo[0], $wInfo[1], $alpha);
break;
//右下
//右下
case 4:
$posY = $sInfo[1] - $wInfo[1];
$posX = $sInfo[0] - $wInfo[0];
//生成混合图像
imagecopymerge($sImage, $wImage, $posX, $posY, 0, 0, $wInfo[0], $wInfo[1], $alpha);
break;
//居中
//居中
case 5:
$posY = $sInfo[1] / 2 - $wInfo[1] / 2;
$posX = $sInfo[0] / 2 - $wInfo[0] / 2;
//生成混合图像
imagecopymerge($sImage, $wImage, $posX, $posY, 0, 0, $wInfo[0], $wInfo[1], $alpha);
break;
}
//end im加水印
ob_start();
imagegif($sImage);
$content = ob_get_contents();
ob_end_clean();
$frames[] = $content;
$framed[] = $img['frameDelay'];
}
$gif_maker = new GIFEncoder($frames, $framed, 0, 2, 0, 0, 0, "bin");
$image_rs = $gif_maker->GetAnimation();
//如果没有给出保存文件名，默认为原图像名
@unlink($source);
//保存图像
file_put_contents($source, $image_rs);
return true;
}
//建立图像
$sCreateFun = "imagecreatefrom" . $sInfo['type'];
if (!function_exists($sCreateFun)) {
$sCreateFun = 'imagecreatefromjpeg';
}
$sImage = $sCreateFun($source);
$wCreateFun = "imagecreatefrom" . $wInfo['type'];
if (!function_exists($wCreateFun)) {
$wCreateFun = 'imagecreatefromjpeg';
}
$wImage = $wCreateFun($water);
//设定图像的混色模式
imagealphablending($wImage, true);
switch (intval($position)) {
case 0:
break;
//左上
//左上
case 1:
$posY = 0;
$posX = 0;
//生成混合图像
imagecopymerge($sImage, $wImage, $posX, $posY, 0, 0, $wInfo[0], $wInfo[1], $alpha);
break;
//右上
//右上
case 2:
$posY = 0;
$posX = $sInfo[0] - $wInfo[0];
//生成混合图像
imagecopymerge($sImage, $wImage, $posX, $posY, 0, 0, $wInfo[0], $wInfo[1], $alpha);
break;
//左下
//左下
case 3:
$posY = $sInfo[1] - $wInfo[1];
$posX = 0;
//生成混合图像
imagecopymerge($sImage, $wImage, $posX, $posY, 0, 0, $wInfo[0], $wInfo[1], $alpha);
break;
//右下
//右下
case 4:
$posY = $sInfo[1] - $wInfo[1];
$posX = $sInfo[0] - $wInfo[0];
//生成混合图像
imagecopymerge($sImage, $wImage, $posX, $posY, 0, 0, $wInfo[0], $wInfo[1], $alpha);
break;
//居中
//居中
case 5:
$posY = $sInfo[1] / 2 - $wInfo[1] / 2;
$posX = $sInfo[0] / 2 - $wInfo[0] / 2;
//生成混合图像
imagecopymerge($sImage, $wImage, $posX, $posY, 0, 0, $wInfo[0], $wInfo[1], $alpha);
break;
}
//如果没有给出保存文件名，默认为原图像名
@unlink($source);
//保存图像
imagejpeg($sImage, $source, 100);
imagedestroy($sImage);
}
public function get_thumbnail($contents, $thumb_width = 0)
{
global $board, $config, $eyoom_board, $exif;
if (!$thumb_width) {
$thumb_width = $board['bo_image_width'];
}
// $contents 중 img 태그 추출
$matches = get_editor_image($contents, true);
if (empty($matches)) {
return $contents;
}
for ($i = 0; $i < count($matches[1]); $i++) {
$img = $matches[1][$i];
preg_match("/src=[\\'\"]?([^>\\'\"]+[^>\\'\"]+)/i", $img, $m);
$src = $m[1];
preg_match("/style=[\"\\']?([^\"\\'>]+)/i", $img, $m);
$style = $m[1];
preg_match("/width:\\s*(\\d+)px/", $style, $m);
$width = $m[1];
preg_match("/height:\\s*(\\d+)px/", $style, $m);
$height = $m[1];
preg_match("/alt=[\"\\']?([^\"\\']*)[\"\\']?/", $img, $m);
$alt = get_text($m[1]);
// 이미지 path 구함
$p = parse_url($src);
if (strpos($p['path'], '/' . G5_DATA_DIR . '/') != 0) {
$data_path = preg_replace('/^\\/.*\\/' . G5_DATA_DIR . '/', '/' . G5_DATA_DIR, $p['path']);
} else {
$data_path = $p['path'];
}
$srcfile = G5_PATH . $data_path;
if (is_file($srcfile)) {
// EXIF 정보
if ($eyoom_board['bo_use_exif']) {
$exif_info = $exif->get_exif_info($srcfile);
}
$size = @getimagesize($srcfile);
if (empty($size)) {
continue;
}
// jpg 이면 exif 체크
if ($size[2] == 2 && function_exists('exif_read_data')) {
$degree = 0;
$_exif = @exif_read_data($srcfile);
if (!empty($_exif['Orientation'])) {
switch ($_exif['Orientation']) {
case 8:
$degree = 90;
break;
case 3:
$degree = 180;
break;
case 6:
$degree = -90;
break;
}
// 세로사진의 경우 가로, 세로 값 바꿈
if ($degree == 90 || $degree == -90) {
$tmp = $size;
$size[0] = $tmp[1];
$size[1] = $tmp[0];
}
}
}
// 원본 width가 thumb_width보다 작다면
if ($size[0] <= $thumb_width) {
continue;
}
// Animated GIF 체크
$is_animated = false;
if ($size[2] == 1) {
$is_animated = is_animated_gif($srcfile);
}
// 썸네일 높이
$thumb_height = round($thumb_width * $size[1] / $size[0]);
$filename = basename($srcfile);
$filepath = dirname($srcfile);
// 썸네일 생성
if (!$is_animated) {
$thumb_file = thumbnail($filename, $filepath, $filepath, $thumb_width, $thumb_height, false);
} else {
$thumb_file = $filename;
}
if ($thumb_file) {
if ($width) {
$thumb_tag = '<img src="' . G5_URL . str_replace($filename, $thumb_file, $data_path) . '" alt="' . $alt . '" width="' . $width . '" height="' . $height . '"/>';
} else {
$thumb_tag = '<img src="' . G5_URL . str_replace($filename, $thumb_file, $data_path) . '" alt="' . $alt . '"/>';
}
// $img_tag에 editor 경로가 있으면 원본보기 링크 추가
$img_tag = $matches[0][$i];
if (strpos($img_tag, G5_DATA_DIR . '/' . G5_EDITOR_DIR) && preg_match("/\\.({$config['cf_image_extension']})\$/i", $filename)) {
$imgurl = str_replace(G5_URL, "", $src);
$thumb_tag = '<a href="' . G5_BBS_URL . '/view_image.php?fn=' . urlencode($imgurl) . '" target="_blank" class="view_image">' . $thumb_tag . '</a>';
}
} else {
if ($width) {
$thumb_tag = '<img src="' . G5_URL . $data_path . '" alt="' . $alt . '" width="' . $width . '" height="' . $height . '"/>';
} else {
$thumb_tag = '<img src="' . G5_URL . $data_path . '" alt="' . $alt . '"/>';
}
$img_tag = $matches[0][$i];
}
// EXIF 정보
if ($exif_info && $eyoom_board['bo_use_exif']) {
$thumb_tag .= $exif_info;
}
$contents = str_replace($img_tag, $thumb_tag, $contents);
}
}
return $contents;
}
// 세로사진의 경우 가로, 세로 값 바꿈
if ($degree == 90 || $degree == -90) {
$tmp = $size;
$size[0] = $tmp[1];
$size[1] = $tmp[0];
}
}
}
// 원본 width가 리사이즈 보다 작다면
if ($size[0] <= $board['as_resize']) {
continue;
}
// Animated GIF 체크
$is_animated = false;
if ($size[2] == 1) {
$is_animated = is_animated_gif($srcfile);
}
if ($is_animated) {
continue;
}
$org = basename($srcfile);
$filepath = dirname($srcfile);
$thumb = thumbnail($org, $filepath, $filepath, $board['as_resize'], 0, false);
if ($thumb && $thumb != $org) {
$orgfile = $filepath . '/' . $org;
$thumbfile = $filepath . '/' . $thumb;
@chmod($orgfile, G5_FILE_PERMISSION);
@unlink($orgfile);
@copy($thumbfile, $orgfile);
@chmod($orgfile, G5_FILE_PERMISSION);
@unlink($thumbfile);
function thumbnail($type = '', $filename = '', $thumb_width = 0, $thumb_height = 0, $is_create = false, $is_crop = true, $crop_mode = 'center', $is_sharpen = false, $um_value = '80/0.5/3', $create_animate_thumb = false)
{
$source_file = 'uploads/';
if ($type) {
$source_file .= $type . '/';
}
$source_file .= $filename;
if (is_file($source_file) === false) {
// 원본 파일이 없다면
return;
}
if (empty($thumb_width) && empty($thumb_height)) {
return $source_file;
}
$size = @getimagesize($source_file);
if ($size[2] < 1 or $size[2] > 3) {
// gif, jpg, png 에 대해서만 적용
return;
}
$uploadDir = 'uploads/cache/';
if (is_dir($uploadDir) === false) {
@mkdir($uploadDir, 0755);
@chmod($uploadDir, 0755);
$file = $uploadDir . 'index.php';
$f = @fopen($file, 'w');
@fwrite($f, '');
@fclose($f);
@chmod($file, 0644);
}
if ($type) {
$uploadDir .= $type . '/';
if (is_dir($uploadDir) === false) {
@mkdir($uploadDir, 0755);
@chmod($uploadDir, 0755);
$file = $uploadDir . 'index.php';
$f = @fopen($file, 'w');
@fwrite($f, '');
@fclose($f);
@chmod($file, 0644);
}
}
$exp = explode('/', $filename);
$filepos = count($exp) - 1;
for ($k = 0; $k < $filepos; $k++) {
$uploadDir .= $exp[$k] . '/';
if (is_dir($uploadDir) === false) {
@mkdir($uploadDir, 0755);
@chmod($uploadDir, 0755);
$file = $uploadDir . 'index.php';
$f = @fopen($file, 'w');
@fwrite($f, '');
@fclose($f);
@chmod($file, 0644);
}
}
$realfilename = $exp[$filepos];
$target_path = $uploadDir;
// 디렉토리가 존재하지 않거나 쓰기 권한이 없으면 썸네일 생성하지 않음
if (!(is_dir($target_path) && is_writable($target_path))) {
return '';
}
// Animated GIF는 썸네일 생성하지 않음
if ($size[2] === 1) {
if (is_animated_gif($source_file) && $create_animate_thumb === false) {
return $source_file;
}
}
$ext = array(1 => 'gif', 2 => 'jpg', 3 => 'png');
$thumb_filename = preg_replace("/\\.[^\\.]+\$/i", '', $realfilename);
// 확장자제거
$thumb_file = $target_path . 'thumb-' . $thumb_filename . '_' . $thumb_width . 'x' . $thumb_height . '.' . $ext[$size[2]];
$thumb_time = @filemtime($thumb_file);
$source_time = @filemtime($source_file);
if (file_exists($thumb_file)) {
if ($is_create === false && $source_time < $thumb_time) {
return $thumb_file;
}
}
// 원본파일의 GD 이미지 생성
$src = null;
$degree = 0;
if ($size[2] === 1) {
$src = imagecreatefromgif($source_file);
$src_transparency = imagecolortransparent($src);
} elseif ($size[2] === 2) {
$src = imagecreatefromjpeg($source_file);
if (function_exists('exif_read_data')) {
// exif 정보를 기준으로 회전각도 구함
$exif = @exif_read_data($source_file);
if (!empty($exif['Orientation'])) {
switch ($exif['Orientation']) {
case 8:
$degree = 90;
break;
case 3:
$degree = 180;
break;
case 6:
$degree = -90;
break;
}
// 회전각도 있으면 이미지 회전
if ($degree) {
$src = imagerotate($src, $degree, 0);
// 세로사진의 경우 가로, 세로 값 바꿈
if ($degree === 90 || $degree === -90) {
$tmp = $size;
$size[0] = $tmp[1];
$size[1] = $tmp[0];
}
}
}
}
} elseif ($size[2] === 3) {
$src = imagecreatefrompng($source_file);
imagealphablending($src, true);
} else {
return;
}
if (empty($src)) {
return;
}
$is_large = true;
$keep_origin = false;
// width, height 설정
if ($thumb_width) {
if (empty($thumb_height)) {
$thumb_height = round($thumb_width * $size[1] / $size[0]);
if ($thumb_width > $size[0]) {
$keep_origin = true;
}
} else {
if ($size[0] < $thumb_width || $size[1] < $thumb_height) {
$is_large = false;
}
}
} else {
if ($thumb_height) {
$thumb_width = round($thumb_height * $size[0] / $size[1]);
}
}
$dst_x = 0;
$dst_y = 0;
$src_x = 0;
$src_y = 0;
$src_w = $size[0];
$src_h = $size[1];
$dst_w = $keep_origin ? $src_w : $thumb_width;
$dst_h = $keep_origin ? $src_h : $thumb_height;
$ratio = $dst_h / $dst_w;
if ($is_large) {
// 크롭처리
if ($is_crop) {
switch ($crop_mode) {
case 'center':
if ($size[1] / $size[0] >= $ratio) {
$src_h = round($src_w * $ratio);
$src_y = round(($size[1] - $src_h) / 2);
} else {
$src_w = round($size[1] / $ratio);
$src_x = round(($size[0] - $src_w) / 2);
}
break;
default:
if ($size[1] / $size[0] >= $ratio) {
$src_h = round($src_w * $ratio);
} else {
$src_w = round($size[1] / $ratio);
}
break;
}
}
$dst = imagecreatetruecolor($dst_w, $dst_h);
if ($size[2] === 3) {
imagealphablending($dst, false);
imagesavealpha($dst, true);
} elseif ($size[2] === 1) {
$palletsize = imagecolorstotal($src);
if ($src_transparency >= 0 && $src_transparency < $palletsize) {
$transparent_color = imagecolorsforindex($src, $src_transparency);
$current_transparent = imagecolorallocate($dst, $transparent_color['red'], $transparent_color['green'], $transparent_color['blue']);
imagefill($dst, 0, 0, $current_transparent);
imagecolortransparent($dst, $current_transparent);
}
}
} else {
$dst = imagecreatetruecolor($dst_w, $dst_h);
$bgcolor = imagecolorallocate($dst, 255, 255, 255);
// 배경색
if ($src_w < $dst_w) {
if ($src_h >= $dst_h) {
$dst_x = round(($dst_w - $src_w) / 2);
$src_h = $dst_h;
} else {
$dst_x = round(($dst_w - $src_w) / 2);
$dst_y = round(($dst_h - $src_h) / 2);
$dst_w = $src_w;
$dst_h = $src_h;
}
} else {
if ($src_h < $dst_h) {
$dst_y = round(($dst_h - $src_h) / 2);
$dst_h = $src_h;
$src_w = $dst_w;
}
}
if ($size[2] === 3) {
$bgcolor = imagecolorallocatealpha($dst, 0, 0, 0, 127);
imagefill($dst, 0, 0, $bgcolor);
imagealphablending($dst, false);
imagesavealpha($dst, true);
} elseif ($size[2] === 1) {
$palletsize = imagecolorstotal($src);
if ($src_transparency >= 0 && $src_transparency < $palletsize) {
$transparent_color = imagecolorsforindex($src, $src_transparency);
$current_transparent = imagecolorallocate($dst, $transparent_color['red'], $transparent_color['green'], $transparent_color['blue']);
imagefill($dst, 0, 0, $current_transparent);
imagecolortransparent($dst, $current_transparent);
} else {
imagefill($dst, 0, 0, $bgcolor);
}
} else {
imagefill($dst, 0, 0, $bgcolor);
}
}
imagecopyresampled($dst, $src, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
// sharpen 적용
if ($is_sharpen && $is_large) {
$val = explode('/', $um_value);
UnsharpMask($dst, $val[0], $val[1], $val[2]);
}
if ($size[2] === 1) {
imagegif($dst, $thumb_file);
} elseif ($size[2] === 3) {
$png_compress = 5;
imagepng($dst, $thumb_file, $png_compress);
} else {
$jpg_quality = 90;
imagejpeg($dst, $thumb_file, $jpg_quality);
}
chmod($thumb_file, 0644);
// 추후 삭제를 위하여 파일모드 변경
imagedestroy($src);
imagedestroy($dst);
return $thumb_file;
}
