Dimillian / IceCubesApp

A SwiftUI Mastodon client

https://apps.apple.com/us/app/ice-cubes-for-mastodon/id6444915884

GNU Affero General Public License v3.0

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Fix the upload of heavy avatar or header image #2103

Closed cschindler closed 1 week ago

cschindler commented 2 weeks ago

Bug fix

Description

Unable to update the avatar or header account image. The API request fails with the following error code: 422 Unprocessable Entity.

"error": "Validation failed: Avatar must be less than 2 MB, Avatar file size must be less than 2 MB"

According to the Mastodon documentation:

You can upload an avatar as a PNG, GIF, or JPG image up to 2MB in size. This image will be downscaled to 400x400. You can upload a header as a PNG, GIF, or JPG image up to 2MB in size. This image will be downscaled to 1500x500.

Bug reproduced on Ice Cubes version 1.10.42 on iOS 17.5.1

Fix

Update the compression method by given a maxSize, maxHeight and maxWidth parameters.
Apply a factor to resize the image and maintain the initial ratio using the new maxHeight and maxWidth parameters.
Optimize the compression method by decreasing the compression factor to achieve the desired maximum size.
Configure the compression settings correctly for the avatar and header images according to the Mastodon documentation.

Tests

Only tested on iOS.