auth: LsatAuthenticator -> L402Authenticator
sed -i 's/LsatAuthenticator/L402Authenticator/g' aperture.go auth/authenticator.go auth/authenticator_test.go
rename package lsat to l402
git mv lsat/ l402
sed 's@aperture/lsat@aperture/l402@g' -i `git grep -l aperture/lsat`
sed -i 's@package lsat@package l402@' `git grep -l 'package lsat'`
sed -i 's@lsat\.@l402.@g' -i `git grep -l 'lsat\.'`
sed 's@l402.Id@lsat.Id@' -i mint/mint_test.go
replace lsat with l402 in the code
sed 's@lsat@l402@' -i mint/mint_test.go
sed 's@Lsat@L402@' -i l402/client_interceptor.go
sed 's@lsatstore@l402store@' -i l402/store_test.go
replace LSAT to L402 in comments
sed '/\/\//s@LSAT@L402@g' -i `git grep -l '//.*LSAT'`
replace LSAT -> L402 in the code, skip when a string starts with it
sed 's@\([^"/]\)LSAT@\1L402@g' -i `git grep -l LSAT`
The new package contains a new interface (`Challenger`) that any
new challenger must implement.
Because aperture uses the new interface instead of using directly the
`LndChallenger` struct I added the `Stop()` method to the
`mint.Challenger`. Instead of also adding the `Start()` method the constructor
returns a Challenger already "started".
This package adheres to the agreed upon internal design document of the
macaroon portion of an LSAT. It is able to mint LSATs for a set of
services at any tier, each containing their desired set of constraints.
LSAT verification so far only ensures the that token was minted by us
and that the target service attempted to be accessed is authorized
according to the white-listed services contained in the token.
