ctrl.php

<?php

use Aws\S3\S3Client;
use Gregwar\Image\Image;
use Gregwar\Image\GarbageCollect;

class Image_Controller extends Base_Controller
{
	public function get_index()
	{
        $s = Api::inputs(array(
            'image' => null,
            'width' => 0,
            'height' => 0,
            'size' => null,
            'type' => 'auto',
            'quality' => 100,
            'x' => 0,
            'y' => 0,
            'cache' => 'true'
        ));

        $cache = path('storage') . "cache/";

        // Set height and width if the size is set.
        if ($s['width'] === 0 && $s['height'] === 0 && $s['size'] !== null) {
            $s['width'] = $s['height'] = $s['size'];
        }

        // if not size options are set default the size
        if ($s['width'] === 0 && $s['height'] === 0 && $s['size'] === null) {
            $s['width'] = $s['height'] = $s['size'] = 70;
        }

        if ($s['image'] === null || empty($s['image'])) {
            $image = Image::open(path('public') . 'img/no_user_image.png');

            return Api::response($image->get(), 200, [
                'Content-Type' => 'image/png'
            ]);
        }

        //GarbageCollect::dropOldFiles(path('storage') . 'cache', 5);

        $image_name = "{$s['width']}x{$s['height']}-{$s['size']}-{$s['type']}-{$s['image']}";

        // Affects the header below.
        if ($s['cache'] === 'false') {
            if (is_file($cache . $s['image'])) {
                unlink($cache . $s['image']);
            }

            if (is_file($cache . $image_name)) {
                unlink($cache . $image_name);
            }
        }

        if (! is_file($cache . $image_name)) {
            if (! is_file($cache . $s['image'])) {
                try {
                    $bucket = Config::get('aws.public_bucket');
                    $key = 'uploads/' . $s['image'];

                    $client = S3Client::factory([
                        'key' => Config::get('aws.key'),
                        'secret' => Config::get('aws.secret'),
                    ]);

                    $result = $client->getObject(array(
                        'Bucket' => $bucket,
                        'Key' => $key,
                        'SaveAs' => $cache . $s['image']
                    ));
                } catch (Aws\S3\Exception\NoSuchKeyException $e) {
                    $image = Image::open(path('public') . 'img/no_user_image.png')
                        ->save($cache . $s['image']);
                }
            }

            $image = Image::open($cache . $s['image'])
                ->cropResize($s['width'], $s['height'], 'transparent');
        }

        return Api::response($image->get(), 200, [
            'Content-Type' => 'image/png'
        ]);
    }
}