Allow users to import their Mastodon history

[hkolbeck]

Mastodon allows users to export a package of everything they've posted. It should be possible to import a package into the site.

• Package is a .tar.gz archive
• It contains images as well as text, and can be very large, some tarball libraries may choke on one.
• May need a fallback to uploading just the json. The files in the archive only have a local path for the image, but that path is identical to the source url path, you just need to know the domain. Some sites use a cdn, so have the user right click an image they posted, copy address, then paste the full address into a form

[hkolbeck]

@thewhodidthis Think you can take this on next?

[thewhodidthis]

@hkolbeck KO, I'm thinking Streams API maybe for the unpacking, let me get started on it right away, x

[hkolbeck]

It's a local file, and I didn't know you could open a directory. Forget unpacking, just have everyone untarball with their OS and then open the root directory.