include exif metadata

[msramalho]

Add an additional data point containing exif metadata where available, for now can only think of telegram media.

[raviksharma]

Hi, I was looking at this issue. It looks like telegram strips off exif metadata from the uploaded images.

• I tested by downloading t.me link files.
• I used https://exifdata.com/ (there was differenrce between directly uploading the file from camera and uploading after downloading from telegram)

quick search tells me twitter does the same.

[msramalho]

Hi @raviksharma, most social media strip this indeed, one reason why this issue hasn't been prioritized, another is the archiver uploads what it received so metadata can always be accessed at a later stage and we haven't found a great need for it in the tool yet. That being said, Telegram does not strip the metadata when you upload without compression, re-tested now on the web version, and I'll leave this open in case others find it useful and we can then make it a feature rather than a possibility.

[msramalho]

This has been implemented in this enricher: https://github.com/bellingcat/auto-archiver/blob/main/src/auto_archiver/enrichers/metadata_enricher.py

Practice shows it generates a lot of garbage metadata but may still prove useful for some platforms.