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Eric Chiang f778b2d33b server: update refresh tokens instead of deleting and creating another ... The server implements a strategy called "Refresh Token Rotation" to ensure refresh tokens can only be claimed once. ref: https://tools.ietf.org/html/rfc6819#section-5.2.2.3 Previously "refresh_token" values in token responses where just the ID of the internal refresh object. To implement rotation, when a client redeemed a refresh token, the object would be deleted, a new one created, and the new ID returned as the new "refresh_token". However, this means there was no consistent ID for refresh tokens internally, making things like foreign keys very hard to implement. This is problematic for revocation features like showing all the refresh tokens a user or client has out. This PR updates the "refresh_token" to be an encoded protobuf message, which holds the internal ID and a nonce. When a refresh token is used, the nonce is updated to prevent reuse, but the ID remains the same. Additionally it adds the timestamp of each token's last use.		2017-01-11 12:07:48 -08:00
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codec.go	server: update refresh tokens instead of deleting and creating another	2017-01-11 12:07:48 -08:00
types.proto	server: update refresh tokens instead of deleting and creating another	2017-01-11 12:07:48 -08:00