Error processing Arachnid (low resolution images only)

[mrladeia]

Only low resolution images fail verification. Perhaps it is interesting, small images are not validated in this case, I imagine that Arachnid's api does not accept small images.

▶ Reproduction steps

1. Upload small image
2. Spoiler: Small image example

   

😢 Unexpected result

Unable to upload image. Verification failure prevents upload.
Failing to verify an image that is too small of a resolution prevents it from being uploaded.

📃 Error log message

Via API:

{
  "status_code": 400,
  "error": {
    "message": "Error processing Arachnid moderation: The requested URL returned error: 400",
    "code": 600
  },
  "status_txt": "Bad Request"
}

On Website: same error

Spoiler: Screenshots

 

[mrladeia]

I tested Arachnid's api in Postman and got this error:

{
    "error": "Image is too small ((79, 35)) - must be at least 50x50"
}

To validate with arachnid, must verify:
height >= 50 AND width >= 50 else by pass arachnid

 

[mrladeia]

Hello!

To fix temporarily, until the release of the new version, in the file: app/src/Legacy/Classes/Upload.php

I made the following correction on line 506:

if (Settings::get('arachnid') && $this->source_image_fileinfo['width'] >= 50 && $this->source_image_fileinfo['height'] >= 50) {

I'm not sure if this is the correct way to fix this problem, it's just a palliative.

Spoiler: Source screenshot

 

[mrladeia]

@Rodolfo

Could you confirm if it would be a bug, and what action to take when it is less than 50x50?

 

[Rodolfo]

what action to take when it is less than 50x50?

As Arachnid blocks very sensitive content, I think that the system should raise an error when you try to upload small images and Arachnid is enabled.

 

[mrladeia]

As Arachnid blocks very sensitive content, I think that the system should raise an error when you try to upload small images and Arachnid is enabled.

Could this option be parameterized? At least I would accept the upload, I think the big criminals will not consume or insert content in a 50x50.

 

[Rodolfo]

Ideally the system should send these failed attempts to the manual approval queue as failover. Unfortunately the front-end uploader doesn't handle such conditions, it handles "moderate all" or "moderate none", but not mixed.

 

[Rodolfo]

Project Arachnid changed the API so this bug is now irrelevant since Chevereto v4.2. If there are other issues with the new API please open a new bug report.