diff options
Diffstat (limited to 'packages/meshbay-common/src')
| -rw-r--r-- | packages/meshbay-common/src/meshbay_common/handshake.py | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/packages/meshbay-common/src/meshbay_common/handshake.py b/packages/meshbay-common/src/meshbay_common/handshake.py index 73a2858..223f064 100644 --- a/packages/meshbay-common/src/meshbay_common/handshake.py +++ b/packages/meshbay-common/src/meshbay_common/handshake.py @@ -53,7 +53,17 @@ NONCE_LEN = 32 class HandshakeError(Exception): - """Refusal, with a message safe to hand to the peer.""" + """ + Refusal, with a message safe to hand to the peer. + + `code` is the same refusal in a form a client can act on. The text is for a + human and may be reworded; matching on it from the client would be a string + comparison that breaks silently the day someone improves the wording. + """ + + def __init__(self, message: str, code: str = ""): + super().__init__(message) + self.code = code class DenylistLike(Protocol): @@ -170,7 +180,11 @@ def authorize_token( raise HandshakeError("Token revoked") if group_id not in decoded.get("groups", []): - raise HandshakeError("Not a member of this group") + # Almost always a token issued before the person was added to the group: + # `groups` is baked in at login and the hub does not push updates. The + # client refreshes and retries on this code rather than telling someone + # who *is* a member that they are not one. + raise HandshakeError("Not a member of this group", code="not_a_member") if hosted_groups is not None and group_id not in hosted_groups: raise HandshakeError("Group not hosted on this node") |