How to cache images from url in Laravel - php

Question

I have a Laravel 4 application that displays images from another PHP application that is located on a remote server.
I would like to know what is the best solution to cache the images from the remote server on my local Laravel App.
Please note that it's almost impossible to copy/past the entire images directory from the remote server, since there are more than 150k images that are regurlary updated (every minutes) and there is a database correlation too (filename with column value in database).
I was about to use Rsync to sync the two directories (distant with local), but I also need to resize images before displaying them and organize the images subdirectories in a different way than it is on the remote server.
First I have installed the Intervention Image Class package on Laravel and I have created a Route:
Route::get('photos/item/{size}/{reference}/{photo}', 'ImgController#showImg');
And in the ImgController:
public function showImg( $size, $reference, $photo )
{
switch ( $size ) {
case '300x225':
$jpg = Image::make( 'http://myremoteapp.com/uploads/' . $reference . '/' . $photo )->resize( 300, 225 )->response( 'jpg' );
break;
}
return $jpg;
}
This works but it doesn't keep the images in the browser's cache and it also creates a performance issue, since the images have to be downloaded and resized every time the page is opened.
I have heard about the Intervention Image Cache but I am not sure if it works with images taken from URLs.
Any advice and suggestions on how to resolve this in a proper way would be greatly appreciated.

Answer 1

You can use cache route as:
Route::filter('cache', function($route, $request, $response = null) {
$key = 'route-' . safe_title(URL::full());
if( is_null($response) && Cache::has($key) ) {
return Cache::get($key);
} elseif( !is_null($response) && !Cache::has($key) ) {
// Code this here
Cache::put($key, $response->getContent(), 30);
}
});
Route::group(array( 'before' => 'cache', 'after' => 'cache' ), function() {
Route::get('photos/item/{size}/{reference}/{photo}', 'ImgController#showImg');
});
attention :
Route::filter() was wiped away from Laravel since > 5.0