How to validate image from external source [closed] - php

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User can paste image url on form, then my app download this on local server. I would like validate this image, but i have problem.
Input:
$image = "http://example.com/image.png";
Rules, but not working
'image' => [
'required',
'url',
'mimes:jpeg,png',
'max:5120',
'dimensions:min_width=400,min_height=400',
new FileExtensionRule(['png', 'jpg', 'jpeg'])
]
How can I validate image from external source.

Answer 1

First you have to make custom rule Custom Validation Rules
php artisan make:rule RemoteImage
and then put your logic inside this function in the RemoteImage class
public function passes($attribute, $value)
{
return strtoupper($value) === $value;
}
to get file type
$image = "http://example.com/image.png";
$ext = pathinfo($image, PATHINFO_EXTENSION);
to get the file size to validate
using curl
$ch = curl_init('http://example.com/image.png');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_HEADER, TRUE);
curl_setopt($ch, CURLOPT_NOBODY, TRUE);
$data = curl_exec($ch);
$size = curl_getinfo($ch, CURLINFO_CONTENT_LENGTH_DOWNLOAD);
curl_close($ch);
echo $size;