Touch ID support for macOS

[timkgh]

So we don't have to type long Aegis passwords.

[sam-artuso]

That'd be amazing!!! 🎉

[timkgh]

@marcopaganini if termotp could read the password from stdin, we could use https://github.com/remko/age-plugin-se to store an encrypted Aegis password in a file that can then be decrypted using Touch ID, e.g.
age --decrypt -i key.txt aegis-password.age | termotp --input aegis.json --plain | grep -i ...

Of course, native Touch ID support would be even better.

[marcopaganini]

It's yer lucky day :) Version 0.0.8 now supports reading passwords from stdin. Please test it thoroughly. What I did is simple: If the input is a terminal, use the regular terminal password hiding shenanigans. If not, just read the passwords from the terminal (max 256 bytes) and trim all binary zeroes and CR/LF at the end.

It would be interesting to support Touch ID, but I have no access to a Mac to test it. Also, if your workaround above works fine, I can add it to the documentation and that would make it a generic solution.

Please let me know how it goes.

[timkgh]

@marcopaganini It works very well, thank you!

To fully automate it, could we have full plain text output without headers (issue #5) so I can just pipe it to grep, or for --fzf / --fuzzy to just show the matches and exit when they are passed an arg?