How to support images/image styles

[dawehner]

Let's talk about how / whether we want to support images and image styles.

Images should just work, as they aren't conceptually that different to private files.

Current challenge with image styles

When rendering an actual image style, styles prefix the URL like the following:
encryption://styles/$image_style/$schema/test/$destination/file.jpg
This leads to a couple of issues:

• Our way of extracting the encryption profile from the URL doesn't work anymore: https://github.com/d8-contrib-modules/file_encrypt/pull/14/files#diff-870784d9bd6931d12db6d9ebb6d6f230R16
• We need our own custom version of \Drupal\image\PathProcessor\PathProcessorImageStyles
• Maybe potential more

[dawehner]

Maybe our entire approach to put the encryption profile into the path is broken.
An alternative could be to register one scheme per configured encryption profile:

• encrypt_test
• encrypt_aes2

Then every existing path based logic will simply work without any further workaround. One tricky question will be, is it actually possible to provide dynamic file schemes.