package org.signal.cdsi

bytes aci_uak_pairs = 1
Each ACI/UAK pair is a 32-byte buffer, containing the 16-byte ACI followed by its 16-byte UAK.
bytes prev_e164s = 2
Each E164 is an 8-byte big-endian number, as 8 bytes.
bytes new_e164s = 3
bytes discard_e164s = 4
bytes token = 6
If set, a token which allows rate limiting to discount the e164s in the request's prev_e164s, only counting new_e164s. If not set, then rate limiting considers both prev_e164s' and new_e164s' size.
bool token_ack = 7
After receiving a new token from the server, send back a message just containing a token_ack.

bytes e164_pni_aci_triples = 1
Each triple is an 8-byte e164, a 16-byte PNI, and a 16-byte ACI. If the e164 was not found, PNI and ACI are all zeros. If the PNI was found but the ACI was not, the PNI will be non-zero and the ACI will be all zeros. ACI will be returned if one of the returned PNIs has an ACI/UAK pair that matches. Should the request be successful (IE: a successful status returned), |e164_pni_aci_triple| will always equal |e164| of the request, so the entire marshalled size of the response will be (2+32)*|e164|, where the additional 2 bytes are the id/type/length additions of the protobuf marshaling added to each byte array. This avoids any data leakage based on the size of the encrypted output.
bytes token = 3
A token which allows subsequent calls' rate limiting to discount the e164s sent up in this request, only counting those in the next request's new_e164s.
int32 debug_permits_used = 4
On a successful response to a token_ack request, the number of permits that were deducted from the user's rate-limit in order to process the request

message ClientRequest