A Chrome/Firefox extension that simplifies following and post interactions on other Mastodon instances than your own by intelligently redirecting you to your instance and utilizing the local API to resolve the content.
Should work for all updated Chromium browsers, updated Firefox, as well as Kiwi browser on Android. Currently only Mastodon 3 + 4 in different flavors are supported as far as I tested. Support for other Fediverse software / versions / flavors might be added in the future. Feel free to create pull requests / issues. This is my first proper browser extension so please bear with my awful JS skills.
> 2. The whitelist mode can be useful if you do not want the extension to run basic checks on every site (since it needs to determine if it is a Mastodon site). Not sure if the blacklist feature is good for anything but I still included it.
> 3. It can have several reasons why a redirection/instance might not work:
- Then the parameter value is used to perform a search for it with the search API endpoint (with resolving, so auth is needed)
- If a match for a user or post was found, you are then redirected to the content
- Using the search API gives best compatibility for resolving content (for ex. Toot IDs differ on instances for the same toot)
### Follow interactions
- Addon uses a list of DOM identifiers of follow buttons (for different views / flavors)
- All default actions for clicking the button are prevented
- Addon extracts the handle and handle domain from the profile view
- The handle domain is then searched for with the external instance's search API endpoint (without resolving, so no authorization needed)
- This is to ensure we grab the correct instance URL for this user, since it can differ from the domain handle (also, the domain handle does not always resolve)
- If all worked out, we build our search string and redirect to your home instance with the value as URL parameter then continue as explained in "General"
### Post interactions
- Addon uses a list of allowed URLs and DOM identifiers for interaction buttons
- It then grabs the Toot ID using different methods, depending on the Mastodon version / flavor
- The Toot ID is then searched for using the external instance's status API
- This gives us the actual URL of the post on its home instance for using as the search string (even if the post is from another external instance than the external instance it is viewed on)
- If all worked out, we build our search string and redirect to your home instance with the value as URL parameter then continue as explained in "General"
- Fix some rare cases where an instance runs on a subdomain but the handle uses the domain without subdomain (need to get the handle directly from the profile instead of URL + domain name) (DONE)
- Add feature to indicate if you are already following a user when browsing his profile on another instance (this requires calls to the home instance, will look into it soon)