mte/src/data_file.ml
2026-07-03 19:52:23 +02:00

93 lines
2.6 KiB
OCaml

open Bos.OS
open Syntax
open Crypto
let read fname =
let* b = File.exists fname in
match b with
| false -> Ok None
| true ->
let+ content = File.read fname in
Some content
let read_eddsa fname =
let+ content_opt = read fname in
Option.map EddsaPrivateKey.of_octets content_opt
let read_rsa fname =
let+ content_opt = read fname in
Option.map RsaPrivateKey.of_octets content_opt
let write_eddsa fname priv = EddsaPrivateKey.to_octets priv |> File.write fname
let write_rsa fname priv = RsaPrivateKey.to_octets priv |> File.write fname
let load_signkey conn fname =
let* opt = read_eddsa fname in
match opt with
| None -> Ok None
| Some priv -> (
let pub = EddsaPrivateKey.pub_of_priv priv in
let* opt = Pg.lookup_signing_key conn pub in
match opt with
| None ->
Fmt.error_msg
"load_signkey error no associated metadata found in database for \
signkey `%s`."
(Fpath.to_string fname)
| Some (stamp_start, stamp_expire, stamp_end) ->
(* TODO master_sig *)
let master_sig = None in
let v =
Signkey.
{ pub; priv; stamp_start; stamp_expire; stamp_end; master_sig }
in
Ok (Some v))
let load_denom conn ~section_name fname =
let* opt = read_rsa fname in
match opt with
| None -> Ok None
| Some priv -> (
let pub = RsaPrivateKey.pub_of_priv priv in
let h_pub = Bin_type.DenominationHash.hash (RsaPublicKey.to_octets pub) in
let* opt = Pg.lookup_denomination_key conn h_pub in
match opt with
| None ->
Fmt.error_msg
"load_denom error no associated metadata found in database for \
denom `%s`."
(Fpath.to_string fname)
| Some
( stamp_start,
stamp_expire_withdraw,
stamp_expire_deposit,
stamp_expire_legal,
value,
fee_withdraw,
fee_deposit,
fee_refresh,
fee_refund,
age_mask ) ->
(* TODO master_sig *)
let master_sig = None in
let v =
Denomination.
{
pub;
priv;
section_name;
value;
stamp_start;
stamp_expire_withdraw;
stamp_expire_deposit;
stamp_expire_legal;
fee_withdraw;
fee_deposit;
fee_refresh;
fee_refund;
age_mask;
h_pub;
master_sig;
}
in
Ok (Some v))