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(*****************************************************************************)
(* *)
(* Open Source License *)
(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com> *)
(* *)
(* Permission is hereby granted, free of charge, to any person obtaining a *)
(* copy of this software and associated documentation files (the "Software"),*)
(* to deal in the Software without restriction, including without limitation *)
(* the rights to use, copy, modify, merge, publish, distribute, sublicense, *)
(* and/or sell copies of the Software, and to permit persons to whom the *)
(* Software is furnished to do so, subject to the following conditions: *)
(* *)
(* The above copyright notice and this permission notice shall be included *)
(* in all copies or substantial portions of the Software. *)
(* *)
(* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR*)
(* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *)
(* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *)
(* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER*)
(* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *)
(* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *)
(* DEALINGS IN THE SOFTWARE. *)
(* *)
(*****************************************************************************)
type t =
| Implicit of Signature.Public_key_hash.t
| Originated of Contract_hash.t
include Compare.Make (struct
type nonrec t = t
let compare l1 l2 =
match (l1, l2) with
| (Implicit pkh1, Implicit pkh2) ->
Signature.Public_key_hash.compare pkh1 pkh2
| (Originated h1, Originated h2) ->
Contract_hash.compare h1 h2
| (Implicit _, Originated _) ->
-1
| (Originated _, Implicit _) ->
1
end)
type contract = t
type error += Invalid_contract_notation of string (* `Permanent *)
let to_b58check = function
| Implicit pbk ->
Signature.Public_key_hash.to_b58check pbk
| Originated h ->
Contract_hash.to_b58check h
let of_b58check s =
match Base58.decode s with
| Some (Ed25519.Public_key_hash.Data h) ->
ok (Implicit (Signature.Ed25519 h))
| Some (Secp256k1.Public_key_hash.Data h) ->
ok (Implicit (Signature.Secp256k1 h))
| Some (P256.Public_key_hash.Data h) ->
ok (Implicit (Signature.P256 h))
| Some (Contract_hash.Data h) ->
ok (Originated h)
| _ ->
error (Invalid_contract_notation s)
let pp ppf = function
| Implicit pbk ->
Signature.Public_key_hash.pp ppf pbk
| Originated h ->
Contract_hash.pp ppf h
let pp_short ppf = function
| Implicit pbk ->
Signature.Public_key_hash.pp_short ppf pbk
| Originated h ->
Contract_hash.pp_short ppf h
let encoding =
let open Data_encoding in
def
"contract_id"
~title:"A contract handle"
~description:
"A contract notation as given to an RPC or inside scripts. Can be a \
base58 implicit contract hash or a base58 originated contract hash."
@@ splitted
~binary:
(union
~tag_size:`Uint8
[ case
(Tag 0)
~title:"Implicit"
Signature.Public_key_hash.encoding
(function Implicit k -> Some k | _ -> None)
(fun k -> Implicit k);
case
(Tag 1)
(Fixed.add_padding Contract_hash.encoding 1)
~title:"Originated"
(function Originated k -> Some k | _ -> None)
(fun k -> Originated k) ])
~json:
(conv
to_b58check
(fun s ->
match of_b58check s with
| Ok s ->
s
| Error _ ->
Json.cannot_destruct "Invalid contract notation.")
string)
let () =
let open Data_encoding in
register_error_kind
`Permanent
~id:"contract.invalid_contract_notation"
~title:"Invalid contract notation"
~pp:(fun ppf x -> Format.fprintf ppf "Invalid contract notation %S" x)
~description:
"A malformed contract notation was given to an RPC or in a script."
(obj1 (req "notation" string))
(function Invalid_contract_notation loc -> Some loc | _ -> None)
(fun loc -> Invalid_contract_notation loc)
let implicit_contract id = Implicit id
let is_implicit = function Implicit m -> Some m | Originated _ -> None
let is_originated = function Implicit _ -> None | Originated h -> Some h
type origination_nonce = {
operation_hash : Operation_hash.t;
origination_index : int32;
}
let origination_nonce_encoding =
let open Data_encoding in
conv
(fun {operation_hash; origination_index} ->
(operation_hash, origination_index))
(fun (operation_hash, origination_index) ->
{operation_hash; origination_index})
@@ obj2 (req "operation" Operation_hash.encoding) (dft "index" int32 0l)
let originated_contract nonce =
let data =
Data_encoding.Binary.to_bytes_exn origination_nonce_encoding nonce
in
Originated (Contract_hash.hash_bytes [data])
let originated_contracts
~since:{origination_index = first; operation_hash = first_hash}
~until:( {origination_index = last; operation_hash = last_hash} as
origination_nonce ) =
assert (Operation_hash.equal first_hash last_hash) ;
let rec contracts acc origination_index =
if Compare.Int32.(origination_index < first) then acc
else
let origination_nonce = {origination_nonce with origination_index} in
let acc = originated_contract origination_nonce :: acc in
contracts acc (Int32.pred origination_index)
in
contracts [] (Int32.pred last)
let initial_origination_nonce operation_hash =
{operation_hash; origination_index = 0l}
let incr_origination_nonce nonce =
let origination_index = Int32.succ nonce.origination_index in
{nonce with origination_index}
let rpc_arg =
let construct = to_b58check in
let destruct hash =
match of_b58check hash with
| Error _ ->
Error "Cannot parse contract id"
| Ok contract ->
Ok contract
in
RPC_arg.make
~descr:"A contract identifier encoded in b58check."
~name:"contract_id"
~construct
~destruct
()
module Index = struct
type t = contract
let path_length = 7
let to_path c l =
let raw_key = Data_encoding.Binary.to_bytes_exn encoding c in
let (`Hex key) = MBytes.to_hex raw_key in
let (`Hex index_key) = MBytes.to_hex (Raw_hashes.blake2b raw_key) in
String.sub index_key 0 2 :: String.sub index_key 2 2
:: String.sub index_key 4 2 :: String.sub index_key 6 2
:: String.sub index_key 8 2 :: String.sub index_key 10 2 :: key :: l
let of_path = function
| []
| [_]
| [_; _]
| [_; _; _]
| [_; _; _; _]
| [_; _; _; _; _]
| [_; _; _; _; _; _]
| _ :: _ :: _ :: _ :: _ :: _ :: _ :: _ :: _ ->
None
| [index1; index2; index3; index4; index5; index6; key] ->
let raw_key = MBytes.of_hex (`Hex key) in
let (`Hex index_key) = MBytes.to_hex (Raw_hashes.blake2b raw_key) in
assert (Compare.String.(String.sub index_key 0 2 = index1)) ;
assert (Compare.String.(String.sub index_key 2 2 = index2)) ;
assert (Compare.String.(String.sub index_key 4 2 = index3)) ;
assert (Compare.String.(String.sub index_key 6 2 = index4)) ;
assert (Compare.String.(String.sub index_key 8 2 = index5)) ;
assert (Compare.String.(String.sub index_key 10 2 = index6)) ;
Data_encoding.Binary.of_bytes encoding raw_key
let rpc_arg = rpc_arg
let encoding = encoding
let compare = compare
end