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<?php |
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/** |
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* ImgPicker |
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*/ |
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class ImgPicker |
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{ |
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protected $options; |
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protected $error_messages = [ |
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// File upload errors codes |
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// http://www.php.net/manual/en/features.file-upload.errors.php |
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1 => 'The uploaded file exceeds the upload_max_filesize directive in php.ini', |
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2 => 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form', |
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3 => 'The uploaded file was only partially uploaded', |
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4 => 'No file was uploaded', |
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6 => 'Missing a temporary folder', |
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7 => 'Failed to write file to disk', |
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8 => 'A PHP extension stopped the file upload', |
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'gd' => 'PHP GD library is NOT installed on your web server', |
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'post_max_size' => 'The uploaded file exceeds the post_max_size directive in php.ini', |
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'max_file_size' => 'File is too big', |
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'min_file_size' => 'File is too small', |
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'accept_file_types' => 'Filetype not allowed', |
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'max_width' => 'Image exceeds maximum width of ', |
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'min_width' => 'Image requires a minimum width of ', |
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'max_height' => 'Image exceeds maximum height of ', |
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'min_height' => 'Image requires a minimum height of ', |
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'upload_failed' => 'Failed to upload the file', |
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'move_failed' => 'Failed to upload the file', |
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'invalid_image' => 'Invalid image', |
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'image_resize' => 'Failed to resize image', |
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'not_exists' => 'Failed to load the image', |
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]; |
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/** |
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* Constructor |
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* |
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* @param array $options |
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* @param array $error_messages |
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* @return void |
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*/ |
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public function __construct($options = array(), $error_messages = array()) |
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{ |
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$this->options = array( |
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// Upload directory path: |
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'upload_dir' => dirname(__FILE__) . '/files/', |
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// Upload directory url: |
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'upload_url' => $this->getFullUrl() . '/files/', |
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// Accepted file types: |
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'accept_file_types' => 'png|jpg|jpeg|gif', |
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// Directory mode: |
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'mkdir_mode' => 0755, |
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// File size restrictions (in bytes): |
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'max_file_size' => null, |
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'min_file_size' => 1, |
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// Image resolution restrictions (in px): |
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'max_width' => null, |
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'max_height' => null, |
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'min_width' => 1, |
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'min_height' => 1, |
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// Auto orient image based on EXIF data: |
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'auto_orient' => true, |
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// Image versions |
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'versions' => array( |
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//'' => array( |
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//'upload_dir' => '', |
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//'upload_url' => '', |
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// Create square images |
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// 'crop' => true, |
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// 'max_width' => 200, |
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// 'max_height' => 200, |
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//), |
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// 'avatar' => array( |
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// 'crop' => true, |
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// 'max_width' => 200, |
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// 'max_height' => 200 |
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// ), |
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// 'small' => array( |
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// 'crop' => true, |
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// 'max_width' => 100 |
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// ) |
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), |
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); |
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$this->options = $options + $this->options; |
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$this->error_messages = $error_messages + $this->error_messages; |
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$this->initialize(); |
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} |
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/** |
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* Initialize upload and crop actions |
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* |
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* @return void |
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*/ |
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protected function initialize() |
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{ |
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// GD extension check |
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// http://www.php.net/manual/en/book.image.php |
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if (!extension_loaded('gd') || !function_exists('gd_info')) { |
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$this->error = $this->getErrorMessage('gd'); |
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return false; |
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} |
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switch (@$_POST['action']) { |
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case 'upload': |
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$this->upload(); |
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break; |
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case 'crop': |
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$this->crop(); |
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break; |
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case 'delete': |
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$this->delete(); |
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break; |
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} |
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switch (@$_GET['action']) { |
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case 'preview': |
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$this->preview(); |
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break; |
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case 'load': |
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$this->load(); |
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break; |
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} |
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} |
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/** |
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* Load action |
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* |
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* @return void |
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*/ |
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protected function load() |
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{ |
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if (!isset($this->options['load'])) { |
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return; |
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} |
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$files = call_user_func($this->options['load'], $this); |
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if (!$files) { |
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return; |
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} |
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if (!is_array($files)) { |
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$files = array($files); |
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$single = true; |
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} |
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$images = array(); |
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foreach ($files as $file) { |
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$image = new stdClass(); |
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$image->path = $this->getUploadPath($file); |
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if (!file_exists($image->path)) { |
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continue; |
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} |
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$image->name = $file; |
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$image->type = $this->getFileExtension($image->name); |
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$image->url = $this->getUploadUrl($image->name); |
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list($image->width, $image->height) = @getimagesize($image->path); |
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foreach ($this->options['versions'] as $version => $options) { |
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$filename = $this->getVersionFilename($image->name, $version); |
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$filepath = $this->getUploadPath($filename, $version); |
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list($width, $height) = @getimagesize($filepath); |
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$image->versions[$version] = array( |
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'url' => $this->getUploadUrl($filename, $version), |
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'width' => $width, |
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'height' => $height, |
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); |
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} |
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unset($image->path); |
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if (isset($single)) { |
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$images = $image; |
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} else { |
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$images[] = $image; |
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} |
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} |
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$this->generateResponse($images); |
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} |
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/** |
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* Preview action |
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* |
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* @return void |
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*/ |
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protected function preview() |
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{ |
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$filename = basename(@$_GET['file']); |
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$width = @$_GET['width']; |
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$rotate = @$_GET['rotate']; |
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$filepath = $this->getUploadPath($filename); |
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$filetype = $this->getFileExtension($filename); |
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if (file_exists($filepath)) { |
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list($src_w, $src_h) = @getimagesize($filepath); |
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$dst_w = $src_w; |
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$dst_h = $src_h; |
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if (is_numeric($width) && $width > 0) { |
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$dst_w = $width; |
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$dst_h = $src_h / $src_w * $width; |
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} |
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$dst_path = $this->getUploadPath(md5($filename) . '.' . $filetype); |
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$this->resizeImage($filepath, $dst_path, 0, 0, $dst_w, $dst_h, $src_w, $src_h); |
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if (in_array(abs($rotate), array(90, 180, 270))) { |
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$angle = ($rotate < 0) ? abs($rotate) : 360 - $rotate; |
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$this->rotateImage($dst_path, $angle); |
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} |
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header('Content-Type: image/jpeg'); |
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header('Content-Length: ' . filesize($dst_path)); |
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readfile($dst_path); |
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@unlink($dst_path); |
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} |
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} |
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245
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/** |
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* Delete action |
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* |
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* @return void |
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*/ |
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protected function delete() |
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{ |
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if (!isset($this->options['delete'])) { |
253
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return; |
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} |
255
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256
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$filename = basename(@$_POST['file']); |
257
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$filepath = $this->getUploadPath($filename); |
258
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259
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if (file_exists($filepath) && call_user_func($this->options['delete'], $filename, $this)) { |
260
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foreach ($this->options['versions'] as $version => $options) { |
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$name = $this->getVersionFilename($filename, $version); |
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$path = $this->getUploadPath($name, $version); |
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} |
264
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@unlink($filepath); |
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265
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} |
266
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} |
267
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268
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/** |
269
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* Upload action |
270
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* |
271
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* @return void |
272
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*/ |
273
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protected function upload() |
274
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{ |
275
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$upload = isset($_FILES['file']) ? $_FILES['file'] : null; |
276
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277
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$file = $this->handleFileUpload( |
278
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@$upload['tmp_name'], |
279
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@$upload['name'] == 'blob' ? $this->getRandFilename() . '.jpg' : @$upload['name'], |
280
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@$upload['size'], |
281
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@$upload['error'] |
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); |
283
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284
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$this->generateResponse($file); |
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285
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} |
286
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287
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/** |
288
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* Handle file upload |
289
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* |
290
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* @param string $uploaded_file |
291
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* @param string $name |
292
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* @param integer $size |
293
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* @param integer $error |
294
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* @return stdClass |
295
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*/ |
296
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protected function handleFileUpload($uploaded_file, $name, $size, $error) |
297
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{ |
298
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$image = new stdClass(); |
299
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$image->name = $this->getFilename($name); |
300
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$image->type = $this->getFileExtension($name); |
301
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$image->size = $this->fixIntOverflow(intval($size)); |
302
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$image->path = $this->getUploadPath($image->name); |
303
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$image->url = $this->getUploadUrl($image->name); |
304
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list($image->width, $image->height) = @getimagesize($uploaded_file); |
305
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306
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if (!$this->validate($uploaded_file, $image, $error)) { |
307
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return $image; |
308
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} |
309
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310
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$upload_dir = $this->getUploadPath(); |
311
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if (!is_dir($upload_dir)) { |
312
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mkdir($upload_dir, $this->options['mkdir_mode'], true); |
313
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} |
314
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315
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//Upload start callback |
316
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if (isset($this->options['upload_start'])) { |
317
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call_user_func($this->options['upload_start'], $image, $this); |
318
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} |
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320
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$image->path = $this->getUploadPath($image->name); |
321
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$image->url = $this->getUploadUrl($image->name); |
322
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323
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if (!move_uploaded_file($uploaded_file, $image->path)) { |
324
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$image->error = $this->getErrorMessage('move_failed'); |
325
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326
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return $image; |
327
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} |
328
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329
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// Orient the image |
330
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if (!empty($this->options['auto_orient'])) { |
331
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$this->orientImage($image->path); |
332
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} |
333
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334
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// Generate image versions |
335
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$image->versions = $this->generateVersions($image, true); |
336
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337
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// Upload complete callback |
338
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if (isset($this->options['upload_complete'])) { |
339
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call_user_func($this->options['upload_complete'], $image, $this); |
340
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} |
341
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342
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unset($image->path); |
343
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344
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return $image; |
345
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} |
346
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|
347
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/** |
348
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* Crop action |
349
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* |
350
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* @return void |
351
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*/ |
352
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protected function crop() |
353
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{ |
354
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$filename = basename(@$_POST['image']); |
355
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$rotate = @$_POST['rotate']; |
356
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|
357
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$image = new stdClass(); |
358
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$image->name = $filename; |
359
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$image->type = $this->getFileExtension($image->name); |
360
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$image->path = $this->getUploadPath($image->name); |
361
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$image->url = $this->getUploadUrl($image->name); |
362
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363
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if (!file_exists($image->path)) { |
364
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return $this->generateResponse(array('error' => $this->getErrorMessage('not_exists'))); |
|
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|
365
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} |
366
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|
367
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if (!preg_match('/.(' . $this->options['accept_file_types'] . ')+$/i', $image->name)) { |
368
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return; |
369
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} |
370
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|
371
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list($image->width, $image->height) = @getimagesize($image->path); |
372
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|
373
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@list($src_x, $src_y, $x2, $y2, $src_w, $src_h) = @array_values(@$_POST['coords']); |
374
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|
375
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|
|
if (isset($this->options['crop_start'])) { |
376
|
|
|
call_user_func($this->options['crop_start'], $image, $this); |
377
|
|
|
} |
378
|
|
|
|
379
|
|
|
$image->url = $this->getUploadUrl($image->name); |
380
|
|
|
|
381
|
|
|
if (empty($src_w) || empty($src_h)) { |
382
|
|
|
$src_w = $image->width; |
383
|
|
|
$src_h = $image->height; |
384
|
|
|
} |
385
|
|
|
|
386
|
|
|
if (empty($src_x) && empty($src_y)) { |
387
|
|
|
$src_x = $src_y = 0; |
388
|
|
|
} |
389
|
|
|
|
390
|
|
|
$dst_w = $src_w; |
391
|
|
|
$dst_h = $src_h; |
392
|
|
|
|
393
|
|
|
$tmp = clone $image; |
394
|
|
|
$tmp->path = $this->getUploadPath(md5($tmp->name) . '.' . $tmp->type); |
395
|
|
|
|
396
|
|
|
@copy($image->path, $tmp->path); |
|
|
|
|
397
|
|
|
|
398
|
|
|
if (in_array(abs($rotate), array(90, 180, 270))) { |
399
|
|
|
$angle = ($rotate < 0) ? abs($rotate) : 360 - $rotate; |
400
|
|
|
$this->rotateImage($tmp->path, $angle); |
|
|
|
|
401
|
|
|
} |
402
|
|
|
|
403
|
|
|
$this->resizeImage($tmp->path, null, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h); |
404
|
|
|
|
405
|
|
|
list($tmp->width, $tmp->height) = @getimagesize($tmp->path); |
406
|
|
|
|
407
|
|
|
$image->versions = $this->generateVersions($tmp); |
408
|
|
|
|
409
|
|
|
@unlink($tmp->path); |
|
|
|
|
410
|
|
|
|
411
|
|
|
if (!isset($this->options['versions'][''])) { |
412
|
|
|
@rename($image->path, $this->getUploadPath($image->name)); |
|
|
|
|
413
|
|
|
} |
414
|
|
|
|
415
|
|
|
list($image->width, $image->height) = @getimagesize($this->getUploadPath($image->name)); |
416
|
|
|
|
417
|
|
|
if ($image->path != $this->getUploadPath($image->name)) { |
418
|
|
|
foreach ($this->options['versions'] as $version => $options) { |
419
|
|
|
$filename = $this->getVersionFilename(basename($image->path), $version); |
420
|
|
|
@unlink($this->getUploadPath($filename, $version)); |
421
|
|
|
} |
422
|
|
|
} |
423
|
|
|
|
424
|
|
|
// Crop complete callback |
425
|
|
|
if (isset($this->options['crop_complete'])) { |
426
|
|
|
call_user_func($this->options['crop_complete'], $image, $this); |
427
|
|
|
} |
428
|
|
|
|
429
|
|
|
unset($image->path); |
430
|
|
|
|
431
|
|
|
// Generate json response |
432
|
|
|
$this->generateResponse($image); |
|
|
|
|
433
|
|
|
} |
434
|
|
|
|
435
|
|
|
/** |
436
|
|
|
* Generate image versions |
437
|
|
|
* |
438
|
|
|
* @param stdClass $image |
439
|
|
|
* @param bool $is_upload |
440
|
|
|
* @return array |
441
|
|
|
*/ |
442
|
|
|
protected function generateVersions($image, $is_upload = false) |
443
|
|
|
{ |
444
|
|
|
$versions = array(); |
445
|
|
|
foreach ($this->options['versions'] as $version => $options) { |
446
|
|
|
$dst_w = $src_w = $image->width; |
447
|
|
|
$dst_h = $src_h = $image->height; |
448
|
|
|
$src_x = $src_y = 0; |
449
|
|
|
|
450
|
|
|
$max_width = @$options['max_width']; |
451
|
|
|
$max_height = @$options['max_height']; |
452
|
|
|
$crop = isset($options['crop']) && $options['crop'] === true; |
453
|
|
|
|
454
|
|
|
if ($crop) { |
455
|
|
|
$min = min($src_w, $src_h); |
456
|
|
|
$src_x = ($src_w - $min) / 2; |
457
|
|
|
$src_y = ($src_h - $min) / 2; |
458
|
|
|
$dst_w = $dst_h = $src_w = $src_h = $min; |
459
|
|
|
} |
460
|
|
|
|
461
|
|
|
if (!empty($max_width) && $src_w > $max_width || ($src_w < $max_width && $crop)) { |
|
|
|
|
462
|
|
|
$dst_w = $max_width; |
463
|
|
|
$dst_h = $src_h / $src_w * $max_width; |
464
|
|
|
} else { |
465
|
|
|
if (!empty($max_height) && $src_h > $max_height || ($src_h < $max_height && $crop)) { |
|
|
|
|
466
|
|
|
$dst_h = $max_height; |
467
|
|
|
$dst_w = $src_w / $src_h * $max_height; |
468
|
|
|
} |
469
|
|
|
} |
470
|
|
|
|
471
|
|
|
$filename = $this->getVersionFilename($image->name, $version); |
472
|
|
|
$filepath = $this->getUploadPath($filename, $version); |
473
|
|
|
$upload_dir = $this->getUploadPath('', $version); |
474
|
|
|
|
475
|
|
|
if (!is_dir($upload_dir)) { |
476
|
|
|
mkdir($upload_dir, $this->options['mkdir_mode'], true); |
477
|
|
|
} |
478
|
|
|
|
479
|
|
|
if (!$is_upload || ($is_upload && $version != '')) { |
480
|
|
|
// var_dump($image->path, $filepath, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h); |
481
|
|
|
$success = $this->resizeImage($image->path, $filepath, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h); |
482
|
|
|
} |
483
|
|
|
|
484
|
|
|
if (!empty($success)) { |
485
|
|
|
$versions[$version] = array( |
486
|
|
|
'url' => $this->getUploadUrl($filename, $version), |
487
|
|
|
'width' => $dst_w, |
488
|
|
|
'height' => $dst_h, |
489
|
|
|
); |
490
|
|
|
} |
491
|
|
|
} |
492
|
|
|
|
493
|
|
|
return $versions; |
494
|
|
|
} |
495
|
|
|
|
496
|
|
|
/** |
497
|
|
|
* Validate uploaded file |
498
|
|
|
* |
499
|
|
|
* @param string $uploaded_file |
500
|
|
|
* @param stdClass $name |
501
|
|
|
* @param string $error |
502
|
|
|
* @return boolean |
503
|
|
|
*/ |
504
|
|
|
protected function validate($uploaded_file, $file, $error) |
505
|
|
|
{ |
506
|
|
|
if (!$uploaded_file) { |
507
|
|
|
$file->error = $this->getErrorMessage(4); |
508
|
|
|
|
509
|
|
|
return false; |
510
|
|
|
} |
511
|
|
|
|
512
|
|
|
if ($error) { |
513
|
|
|
$file->error = $this->getErrorMessage($error); |
514
|
|
|
|
515
|
|
|
return false; |
516
|
|
|
} |
517
|
|
|
|
518
|
|
|
$content_length = $this->fixIntOverflow(intval($_SERVER['CONTENT_LENGTH'])); |
519
|
|
|
$post_max_size = $this->getConfigBytes(ini_get('post_max_size')); |
520
|
|
|
|
521
|
|
|
if ($post_max_size && $content_length > $post_max_size) { |
522
|
|
|
$file->error = $this->getErrorMessage('post_max_size'); |
523
|
|
|
|
524
|
|
|
return false; |
525
|
|
|
} |
526
|
|
|
|
527
|
|
|
if ($this->options['max_file_size'] && $file->size > $this->options['max_file_size']) { |
528
|
|
|
$file->error = $this->getErrorMessage('max_file_size'); |
529
|
|
|
|
530
|
|
|
return false; |
531
|
|
|
} |
532
|
|
|
|
533
|
|
|
if ($this->options['min_file_size'] && $file->size < $this->options['min_file_size']) { |
534
|
|
|
$file->error = $this->getErrorMessage('min_file_size'); |
535
|
|
|
|
536
|
|
|
return false; |
537
|
|
|
} |
538
|
|
|
|
539
|
|
|
if (!preg_match('/.(' . $this->options['accept_file_types'] . ')+$/i', $file->name)) { |
540
|
|
|
$file->error = $this->getErrorMessage('accept_file_types'); |
541
|
|
|
|
542
|
|
|
return false; |
543
|
|
|
} |
544
|
|
|
|
545
|
|
|
if (empty($file->width) || empty($file->height)) { |
546
|
|
|
$file->error = $this->getErrorMessage('invalid_image'); |
547
|
|
|
|
548
|
|
|
return false; |
549
|
|
|
} |
550
|
|
|
|
551
|
|
|
$max_width = @$this->options['max_width']; |
552
|
|
|
$max_height = @$this->options['max_height']; |
553
|
|
|
$min_width = @$this->options['min_width']; |
554
|
|
|
$min_height = @$this->options['min_height']; |
555
|
|
|
|
556
|
|
|
if ($max_width || $max_height || $min_width || $min_height) { |
557
|
|
|
if ($max_width && $file->width > $max_width) { |
558
|
|
|
$file->error = $this->getErrorMessage('max_width') . $max_width . 'px'; |
559
|
|
|
|
560
|
|
|
return false; |
561
|
|
|
} |
562
|
|
|
if ($max_height && $file->height > $max_height) { |
563
|
|
|
$file->error = $this->getErrorMessage('max_height') . $max_height . 'px'; |
564
|
|
|
|
565
|
|
|
return false; |
566
|
|
|
} |
567
|
|
|
if ($min_width && $file->width < $min_width) { |
568
|
|
|
$file->error = $this->getErrorMessage('min_width') . $min_width . 'px'; |
569
|
|
|
|
570
|
|
|
return false; |
571
|
|
|
} |
572
|
|
|
if ($min_height && $file->height < $min_height) { |
573
|
|
|
$file->error = $this->getErrorMessage('min_height') . $min_height . 'px'; |
574
|
|
|
|
575
|
|
|
return false; |
576
|
|
|
} |
577
|
|
|
} |
578
|
|
|
|
579
|
|
|
return true; |
580
|
|
|
} |
581
|
|
|
|
582
|
|
|
/** |
583
|
|
|
* Get upload directory path |
584
|
|
|
* |
585
|
|
|
* @param string $filename |
586
|
|
|
* @param string $version |
587
|
|
|
* @return string |
588
|
|
|
*/ |
589
|
|
|
public function getUploadPath($filename = '', $version = '') |
590
|
|
|
{ |
591
|
|
|
$upload_dir = $this->options['upload_dir']; |
592
|
|
|
|
593
|
|
|
if ($version != '') { |
594
|
|
|
$dir = @$this->options['versions'][$version]['upload_dir']; |
595
|
|
|
if (!empty($dir)) { |
596
|
|
|
$upload_dir = $dir; |
597
|
|
|
} |
598
|
|
|
} |
599
|
|
|
|
600
|
|
|
return $upload_dir . $filename; |
601
|
|
|
} |
602
|
|
|
|
603
|
|
|
/** |
604
|
|
|
* Get upload directory url |
605
|
|
|
* |
606
|
|
|
* @param string $filename |
607
|
|
|
* @param string $version |
608
|
|
|
* @return string |
609
|
|
|
*/ |
610
|
|
|
public function getUploadUrl($filename = '', $version = '') |
611
|
|
|
{ |
612
|
|
|
$upload_url = $this->options['upload_url']; |
613
|
|
|
|
614
|
|
|
if ($version != '') { |
615
|
|
|
$url = @$this->options['versions'][$version]['upload_url']; |
616
|
|
|
if (!empty($url)) { |
617
|
|
|
$upload_url = $url; |
618
|
|
|
} |
619
|
|
|
} |
620
|
|
|
|
621
|
|
|
return $upload_url . $filename; |
622
|
|
|
} |
623
|
|
|
|
624
|
|
|
/** |
625
|
|
|
* Get full url |
626
|
|
|
* |
627
|
|
|
* @return string |
628
|
|
|
*/ |
629
|
|
|
protected function getFullUrl() |
630
|
|
|
{ |
631
|
|
|
$https = !empty($_SERVER['HTTPS']) && strcasecmp($_SERVER['HTTPS'], 'on') === 0; |
632
|
|
|
|
633
|
|
|
return |
634
|
|
|
($https ? 'https://' : 'http://') . |
635
|
|
|
(!empty($_SERVER['REMOTE_USER']) ? $_SERVER['REMOTE_USER'] . '@' : '') . |
636
|
|
|
(isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : ($_SERVER['SERVER_NAME'] . |
637
|
|
|
($https && $_SERVER['SERVER_PORT'] === 443 || |
638
|
|
|
$_SERVER['SERVER_PORT'] === 80 ? '' : ':' . $_SERVER['SERVER_PORT']))) . |
639
|
|
|
substr($_SERVER['SCRIPT_NAME'], 0, strrpos($_SERVER['SCRIPT_NAME'], '/')); |
640
|
|
|
} |
641
|
|
|
|
642
|
|
|
/** |
643
|
|
|
* Get file name |
644
|
|
|
* |
645
|
|
|
* @param string |
646
|
|
|
* @return string |
647
|
|
|
*/ |
648
|
|
|
public function getFilename($name) |
649
|
|
|
{ |
650
|
|
|
return $this->getUniqueFilename($name); |
651
|
|
|
} |
652
|
|
|
|
653
|
|
|
/** |
654
|
|
|
* Get version name |
655
|
|
|
* |
656
|
|
|
* @param string |
657
|
|
|
* @return string |
658
|
|
|
*/ |
659
|
|
|
public function getVersionFilename($filename, $version) |
660
|
|
|
{ |
661
|
|
|
$ext = $this->getFileExtension($filename); |
662
|
|
|
if ($version == '') { |
663
|
|
|
return $filename; |
664
|
|
|
} |
665
|
|
|
|
666
|
|
|
return str_replace('.' . $ext, "-$version.$ext", $filename); |
667
|
|
|
} |
668
|
|
|
|
669
|
|
|
/** |
670
|
|
|
* Get unique file name |
671
|
|
|
* |
672
|
|
|
* @param string |
673
|
|
|
* @return string |
674
|
|
|
*/ |
675
|
|
|
public function getUniqueFilename($name) |
676
|
|
|
{ |
677
|
|
|
while (is_dir($this->getUploadPath($name))) { |
678
|
|
|
$name = $this->upcountName($name); |
679
|
|
|
} |
680
|
|
|
while (is_file($this->getUploadPath($name))) { |
681
|
|
|
$name = $this->upcountName($name); |
682
|
|
|
} |
683
|
|
|
|
684
|
|
|
return $name; |
685
|
|
|
} |
686
|
|
|
|
687
|
|
|
/** |
688
|
|
|
* Generate random file name |
689
|
|
|
* |
690
|
|
|
* @return string |
691
|
|
|
*/ |
692
|
|
|
public function getRandFilename() |
693
|
|
|
{ |
694
|
|
|
return md5(time() . rand()); |
695
|
|
|
} |
696
|
|
|
|
697
|
|
|
/** |
698
|
|
|
* Get file extension |
699
|
|
|
* |
700
|
|
|
* @param string $filename |
701
|
|
|
* @return string |
702
|
|
|
*/ |
703
|
|
|
public function getFileExtension($filename) |
704
|
|
|
{ |
705
|
|
|
return pathinfo(strtolower($filename), PATHINFO_EXTENSION); |
|
|
|
|
706
|
|
|
} |
707
|
|
|
|
708
|
|
|
/** |
709
|
|
|
* Generate json response |
710
|
|
|
* |
711
|
|
|
* @param array $response |
712
|
|
|
* @return string |
713
|
|
|
*/ |
714
|
|
|
public function generateResponse($response) |
715
|
|
|
{ |
716
|
|
|
echo json_encode($response); |
717
|
|
|
} |
718
|
|
|
|
719
|
|
|
/** |
720
|
|
|
* Get error message |
721
|
|
|
* |
722
|
|
|
* @param string $error |
723
|
|
|
* @return string |
724
|
|
|
*/ |
725
|
|
|
public function getErrorMessage($error) |
726
|
|
|
{ |
727
|
|
|
return array_key_exists($error, $this->error_messages) ? |
728
|
|
|
$this->error_messages[$error] : $error; |
729
|
|
|
} |
730
|
|
|
|
731
|
|
|
/** |
732
|
|
|
* Resize image |
733
|
|
|
* |
734
|
|
|
* @param string $src_path Source image path |
735
|
|
|
* @param string|null $dst_path Destination image path |
736
|
|
|
* @param integer $src_x x-coordinate of source point |
737
|
|
|
* @param integer $src_y y-coordinate of source point |
738
|
|
|
* @param integer $dst_w Destination width |
739
|
|
|
* @param integer $dst_h Destination height |
740
|
|
|
* @param integer $src_w Source width |
741
|
|
|
* @param integer $src_h Source height |
742
|
|
|
* @return bool |
743
|
|
|
*/ |
744
|
|
|
public function resizeImage($src_path, $dst_path = null, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h) |
745
|
|
|
{ |
746
|
|
|
$src_x = ceil($src_x); |
747
|
|
|
$src_y = ceil($src_y); |
748
|
|
|
$dst_w = ceil($dst_w); |
749
|
|
|
$dst_h = ceil($dst_h); |
750
|
|
|
$src_w = ceil($src_w); |
751
|
|
|
$src_h = ceil($src_h); |
752
|
|
|
|
753
|
|
|
$dst_path = ($dst_path) ? $dst_path : $src_path; |
754
|
|
|
$dst_image = imagecreatetruecolor($dst_w, $dst_h); |
|
|
|
|
755
|
|
|
$extension = $this->getFileExtension($src_path); |
756
|
|
|
|
757
|
|
|
if (!$dst_image) { |
758
|
|
|
return false; |
759
|
|
|
} |
760
|
|
|
|
761
|
|
|
switch ($extension) { |
762
|
|
|
case 'gif': |
763
|
|
|
$src_image = imagecreatefromgif($src_path); |
764
|
|
|
break; |
765
|
|
|
case 'jpeg': |
766
|
|
|
case 'jpg': |
767
|
|
|
$src_image = imagecreatefromjpeg($src_path); |
768
|
|
|
break; |
769
|
|
|
case 'png': |
770
|
|
|
imagealphablending($dst_image, false); |
771
|
|
|
imagesavealpha($dst_image, true); |
772
|
|
|
$src_image = imagecreatefrompng($src_path); |
773
|
|
|
@imagealphablending($src_image, true); |
|
|
|
|
774
|
|
|
break; |
775
|
|
|
} |
776
|
|
|
|
777
|
|
|
if (isset($src_image) && !$src_image) { |
778
|
|
|
return false; |
779
|
|
|
} |
780
|
|
|
|
781
|
|
|
if (!imagecopyresampled($dst_image, $src_image, 0, 0, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h)) { |
|
|
|
|
782
|
|
|
return false; |
783
|
|
|
} |
784
|
|
|
|
785
|
|
|
switch ($extension) { |
786
|
|
|
case 'gif': |
787
|
|
|
return imagegif($dst_image, $dst_path); |
788
|
|
|
break; |
|
|
|
|
789
|
|
|
case 'jpeg': |
790
|
|
|
case 'jpg': |
791
|
|
|
return imagejpeg($dst_image, $dst_path); |
792
|
|
|
break; |
793
|
|
|
case 'png': |
794
|
|
|
return imagepng($dst_image, $dst_path); |
795
|
|
|
break; |
796
|
|
|
} |
797
|
|
|
} |
798
|
|
|
|
799
|
|
|
/** |
800
|
|
|
* Rotate image |
801
|
|
|
* |
802
|
|
|
* @param string $src_path |
803
|
|
|
* @param integer $angle |
804
|
|
|
* @return void |
805
|
|
|
*/ |
806
|
|
|
public function rotateImage($src_path, $angle) |
807
|
|
|
{ |
808
|
|
|
$type = $this->getFileExtension($src_path); |
809
|
|
|
|
810
|
|
|
switch ($type) { |
811
|
|
|
case 'gif': |
812
|
|
|
$source = imagecreatefromgif($src_path); |
813
|
|
|
break; |
814
|
|
|
case 'jpeg': |
815
|
|
|
case 'jpg': |
816
|
|
|
$source = imagecreatefromjpeg($src_path); |
817
|
|
|
break; |
818
|
|
|
case 'png': |
819
|
|
|
$source = imagecreatefrompng($src_path); |
820
|
|
|
break; |
821
|
|
|
} |
822
|
|
|
|
823
|
|
|
$image = imagerotate($source, $angle, 0); |
|
|
|
|
824
|
|
|
|
825
|
|
|
switch ($type) { |
826
|
|
|
case 'gif': |
827
|
|
|
imagegif($image, $src_path); |
828
|
|
|
break; |
829
|
|
|
case 'jpeg': |
830
|
|
|
case 'jpg': |
831
|
|
|
imagejpeg($image, $src_path); |
832
|
|
|
break; |
833
|
|
|
case 'png': |
834
|
|
|
imagepng($image, $src_path); |
835
|
|
|
break; |
836
|
|
|
} |
837
|
|
|
|
838
|
|
|
imagedestroy($source); |
839
|
|
|
imagedestroy($image); |
840
|
|
|
} |
841
|
|
|
|
842
|
|
|
/** |
843
|
|
|
* Orient image based on EXIF orientation data |
844
|
|
|
* |
845
|
|
|
* @param string $filepath |
846
|
|
|
* @return void |
847
|
|
|
*/ |
848
|
|
|
protected function orientImage($filepath) |
849
|
|
|
{ |
850
|
|
|
if (!preg_match('/\.(jpe?g)$/i', $filepath)) { |
851
|
|
|
return; |
852
|
|
|
} |
853
|
|
|
|
854
|
|
|
$exif = @exif_read_data($filepath); |
855
|
|
|
if (!empty($exif['Orientation'])) { |
856
|
|
|
switch ($exif['Orientation']) { |
857
|
|
|
case 3: |
858
|
|
|
$angle = 180; |
859
|
|
|
break; |
860
|
|
|
case 6: |
861
|
|
|
$angle = -90; |
862
|
|
|
break; |
863
|
|
|
case 8: |
864
|
|
|
$angle = 90; |
865
|
|
|
break; |
866
|
|
|
} |
867
|
|
|
|
868
|
|
|
if (isset($angle)) { |
869
|
|
|
$this->rotateImage($filepath, $angle); |
870
|
|
|
} |
871
|
|
|
} |
872
|
|
|
} |
873
|
|
|
|
874
|
|
|
protected function upcountName($name) |
875
|
|
|
{ |
876
|
|
|
return preg_replace_callback( |
877
|
|
|
'/(?:(?: \(([\d]+)\))?(\.[^.]+))?$/', |
878
|
|
|
array($this, 'upcountNameCallback'), |
879
|
|
|
$name, |
880
|
|
|
1 |
881
|
|
|
); |
882
|
|
|
} |
883
|
|
|
|
884
|
|
|
protected function upcountNameCallback($matches) |
885
|
|
|
{ |
886
|
|
|
$index = isset($matches[1]) ? intval($matches[1]) + 1 : 1; |
887
|
|
|
$ext = isset($matches[2]) ? $matches[2] : ''; |
888
|
|
|
|
889
|
|
|
return ' (' . $index . ')' . $ext; |
890
|
|
|
} |
891
|
|
|
|
892
|
|
|
protected function getConfigBytes($val) |
893
|
|
|
{ |
894
|
|
|
$val = trim($val); |
895
|
|
|
$last = strtolower($val[strlen($val) - 1]); |
896
|
|
|
switch ($last) { |
897
|
|
|
case 'g': |
898
|
|
|
$val *= 1024; |
899
|
|
|
// no break |
900
|
|
|
case 'm': |
901
|
|
|
$val *= 1024; |
902
|
|
|
// no break |
903
|
|
|
case 'k': |
904
|
|
|
$val *= 1024; |
905
|
|
|
} |
906
|
|
|
|
907
|
|
|
return $this->fixIntOverflow($val); |
908
|
|
|
} |
909
|
|
|
|
910
|
|
|
protected function fixIntOverflow($size) |
911
|
|
|
{ |
912
|
|
|
if ($size < 0) { |
913
|
|
|
$size += 2.0 * (PHP_INT_MAX + 1); |
914
|
|
|
} |
915
|
|
|
|
916
|
|
|
return $size; |
917
|
|
|
} |
918
|
|
|
} |
919
|
|
|
|