flask-iiif 1.1.0

api: fix resize of greyscale source images

bump flask to >=2.0, pin Werkzeug <3.0

fix deprecated use of attachment_filename

remove custom resizing of GIF

Removes encoding of key, due to incompatibility with python3

Makes temp folder location regarding the generation of gif files configurable

Removes upper pinning of Werkzeug

Closes image after usage to avoid leaking memory during api requests

Migrates CI to gh-actions

Updates copyright and contributors

Added missing app argument for the flask_iiif.cache.ImageCache constructor.

Removes support for Python 2.7

Image API specification fixes

• Support both gray and grey as valid qualities.

• Rotations are now performed clock-wise.

• No padding added to resized images.

Better support for image extension conversions (.tif/.tiff, .jp2).

Pillow bumped to v4.0

Introduced IIIF_CACHE_IGNORE_ERRORS config variable to allow ignoring cache access exceptions.

Changed current_iiif.cache from a callable function to a Werkzeug cached_property.

Adds Last-Lodified and If-Modified-Since to imageapi

Removes warning message for LocalProxy

Fixes werkzeug deprecation warning

Sets Redis cache prefix

Fixes cache control headers

Fixes syntax error in documentation

Fixes import sorting

Fixes

• wrong ratio calculation for best fit

New features

• adds black background to requested best fit thumbnail or gif if the image does not cover the whole window of requested size

Fixes unicode filename issues.

Changes default resampling algorithm to BICUBIC for better image quality.

Adds support for _external, _scheme etc parameters for iiif_image_url.

Security

• Fixed missing API protection on image metadata endpoint.

Deployment changes.

New features

• Adds TIFF image support to the default config.

• Adds proper GIF resize.

• Adds optional Redis cache.

Notes

• Minimum Pillow version is update to 3.4.

Incompatible changes

• Removes uuid_to_path_handler callback.

• Updates error classes names (MultimediaImageResizeError and MultimediaImageCropError).

New features

• Adds image information request endpoint <uuid>/info.json which contains available metadata for the image, such as the full height and width, and the functionality available for the image, such as the formats in which it may be retrieved, and the IIIF profile used.

• Adds new signals to REST API that permits to have access before and after process of the request as well as after the validation of IIIF.

• Adds a configurable decorator to the REST API which can be configure with the api_decorator_handler.

• Adds the uuid_to_image_opener_handler which can handle both fullpath and bytestream as source.

Improved features

• Improves the initialisation of the REST API by adding a possibility to override the default API prefix /api/multimedia/image/.

• Adds better testing cases and increases the overall test efficiency.

Notes

• The decorator can be used to restrict access to the REST API.

Initial public release.