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Use EXIF data of image to prefill image description

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During attachment upload Pleroma returns a "description" field. Pleroma-fe has an MR to use that to pre-fill the image description field, <https://git.pleroma.social/pleroma/pleroma-fe/-/merge_requests/1399>

* This MR allows Pleroma to read the EXIF data during upload and return the description to the FE
    * If a description is already present (e.g. because a previous module added it), it will use that
    * Otherwise it will read from the EXIF data. First it will check -ImageDescription, if that's empty, it will check -iptc:Caption-Abstract
    * If no description is found, it will simply return nil, just like before
* When people set up a new instance, they will be asked if they want to read metadata and this module will be activated if so

This was taken from an MR i did on Pleroma and isn't finished yet.
This commit is contained in:
Ilja 2022-02-14 13:14:25 +01:00
commit cd316d7269
11 changed files with 219 additions and 14 deletions
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6
docs/configuration/cheatsheet.md
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@ -633,6 +633,12 @@ This filter only strips the GPS and location metadata with Exiftool leaving colo
No specific configuration.
#### Pleroma.Upload.Filter.ExiftoolReadData
This filter only reads metadata with Exiftool so clients can prefill the media description field.
No specific configuration.
#### Pleroma.Upload.Filter.Mogrify
* `args`: List of actions for the `mogrify` command like `"strip"` or `["strip", "auto-orient", {"implode", "1"}]`.