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| <?php | |
| /** | |
| * Class RotateAndResizeImageFile | |
| * | |
| * @package AclUser\Service | |
| * @author Nigel Hurnell | |
| * @version v 1.0.0 | |
| * @license BSD | |
| * @copyright Copyright (c) 2018, Nigel Hurnell | |
| */ | |
| namespace AclUser\Service; | |
| /** | |
| * Class that is used to apply users requested changes to the image that they | |
| * have uploaded as their profile picture | |
| * | |
| * @package AclUser\Service | |
| * @author Nigel Hurnell | |
| * @version v 1.0.0 | |
| * @license BSD | |
| * @copyright Copyright (c) 2018, Nigel Hurnell | |
| */ | |
| class RotateAndResizeImageFile | |
| { | |
| /** | |
| * An array of messages created when something goes wrong with the image manipulation | |
| * | |
| * @var array | |
| */ | |
| protected $errorMessages = []; | |
| /** | |
| * Location where the initial image has been saved | |
| * | |
| * @var string | |
| */ | |
| protected $initialSaveLocation = './data/media/upload/'; | |
| /** | |
| * the final path and (file) name where the image will end up | |
| * | |
| * @var string | |
| */ | |
| protected $finalSavePath; | |
| /** | |
| * Rotate, resize image and convert to final image format and save where required | |
| * | |
| * @param array $params merged post and file parameters | |
| * @param integer $userId user's id which will be the name of the file on success. | |
| * @return boolean whether the whole procedure was a success | |
| */ | |
| public function rotateAndResize($params, $userId) | |
| { | |
| $fileName = $params['file-name']; | |
| $extension = $this->getExtension($fileName); | |
| $this->finalSavePath = $this->initialSaveLocation . $fileName; | |
| if ($this->checkParams($params) && $extension && $this->checkFileExists() ) { | |
| if ('0' !== $params['rotation']) { | |
| $source = $this->getSource($extension); | |
| $this->rotateImage($source, $fileName, $params['rotation'], $extension); | |
| } | |
| $src_image = $this->getSource($extension); | |
| $dst_image = imagecreatetruecolor($params['dst_w'], $params['dst_h']); | |
| imagecopyresampled($dst_image, $src_image, (int) $params['dst_x'], (int) $params['dst_y'], $params['src_x'], $params['src_y'], $params['dst_w'], $params['dst_h'], $params['src_w'], $params['src_h']); | |
| $imagePath = "./data/media/user-images/{$userId}.png"; | |
| imagepng($dst_image, $imagePath); | |
| file_exists($this->finalSavePath) ? unlink($this->finalSavePath) : null; | |
| return true; | |
| } | |
| return false; | |
| } | |
| /** | |
| * Get an array of error message when something goes wrong | |
| * | |
| * @return array containing error messages | |
| */ | |
| public function getErrorMessages() | |
| { | |
| return $this->errorMessages; | |
| } | |
| /** | |
| * Rotate the image and save to new location in rotated folder | |
| * the remove the original (unrotated) image file | |
| * | |
| * @param resource $source image resource identifier | |
| * @param string $fileName the name of the file | |
| * @param integer $rotation rotation (multiple of 90) | |
| * @param string $extension the file extension (lowercase) | |
| */ | |
| protected function rotateImage($source, $fileName, $rotation, $extension) | |
| { | |
| $original = $this->finalSavePath; | |
| $this->finalSavePath = $this->initialSaveLocation . 'rotated/' . $fileName; | |
| $rotate = imagerotate($source, - $rotation, 0); | |
| switch ($extension) { | |
| case 'jpg': | |
| case 'jpeg': | |
| imagejpeg($rotate, $this->finalSavePath); | |
| break; | |
| case 'png': | |
| imagepng($rotate, $this->finalSavePath); | |
| break; | |
| case 'gif': | |
| imagegif($rotate, $this->finalSavePath); | |
| break; | |
| } | |
| file_exists($original) ? unlink($original) : null; | |
| } | |
| /** | |
| * Check whether all the parameters that are required by the class are present | |
| * | |
| * @param array $params merged post and file parameters | |
| * @return boolean whether all parameters are present | |
| */ | |
| public function checkParams($params) | |
| { | |
| $keys = ['file-name', 'dst_x', 'dst_y', 'src_x', 'src_y', 'dst_w', 'dst_h', 'src_w', 'src_h', 'rotation', 'ratio']; | |
| foreach ($keys as $key) { | |
| if (!array_key_exists($key, $params)) { | |
| $this->errorMessages[] = 'One or more parameters were missing from the posted data.'; | |
| return false; | |
| } | |
| } | |
| return true; | |
| } | |
| /** | |
| * Check whether the file exists on the server | |
| * | |
| * @return boolean whether the file exists | |
| */ | |
| protected function checkFileExists() | |
| { | |
| $fileExists = file_exists($this->finalSavePath); | |
| if (!$fileExists) { | |
| $this->errorMessages[] = 'The file has not been uploaded.'; | |
| } | |
| return $fileExists; | |
| } | |
| /** | |
| * Get the extension (lowercase) or false if it is not supported | |
| * | |
| * @param string $fileName the name of the file | |
| * @return string|false if the extension is not supported | |
| */ | |
| protected function getExtension($fileName) | |
| { | |
| $extensions = ['jpg', 'jpeg', 'png', 'gif']; | |
| $parts = explode('.', $fileName); | |
| $end = end($parts); | |
| $ext = strtolower($end); | |
| if (!in_array($ext, $extensions)) { | |
| $this->errorMessages[] = 'This type of file is not supported.'; | |
| } | |
| return in_array($ext, $extensions) ? $ext : false; | |
| } | |
| /** | |
| * Get the Returns an image resource identifier. | |
| * | |
| * @param string $extension | |
| * @return resource an image resource identifier on success, FALSE on errors. | |
| */ | |
| public function getSource($extension) | |
| { | |
| switch ($extension) { | |
| case 'jpg': | |
| case 'jpeg': | |
| $source = imagecreatefromjpeg($this->finalSavePath); | |
| break; | |
| case 'png': | |
| $source = imagecreatefrompng($this->finalSavePath); | |
| break; | |
| case 'gif': | |
| $source = imagecreatefromgif($this->finalSavePath); | |
| break; | |
| } | |
| return $source; | |
| } | |
| } |