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Added provide_token_metadata to client

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This commit is contained in:
Alexandre Paillier
2024-01-29 17:27:18 +01:00
parent 77f5c9389b
commit 4ff2e4e1c7
2 changed files with 41 additions and 0 deletions
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22
client/src/ledger_app_clients/ethereum/client.py
View File

@@ -231,3 +231,25 @@ class EthAppClient:
with self._send(chunk):
pass
return self._send(chunks[-1])
def provide_token_metadata(self,
ticker: str,
addr: bytes,
decimals: int,
chain_id: int,
sig: Optional[bytes] = None):
if sig is None:
# Temporarily get a command with an empty signature to extract the payload and
# compute the signature on it
tmp = self._cmd_builder.provide_erc20_token_information(ticker,
addr,
decimals,
chain_id,
bytes())
# skip APDU header & empty sig
sig = sign_data(Key.CAL, tmp[6:])
return self._send(self._cmd_builder.provide_erc20_token_information(ticker,
addr,
decimals,
chain_id,
sig))

19
client/src/ledger_app_clients/ethereum/command_builder.py
View File

@@ -13,6 +13,7 @@ class InsType(IntEnum):
GET_PUBLIC_ADDR = 0x02
SIGN = 0x04
PERSONAL_SIGN = 0x08
PROVIDE_ERC20_TOKEN_INFORMATION = 0x0a
PROVIDE_NFT_INFORMATION = 0x14
SET_PLUGIN = 0x16
EIP712_SEND_STRUCT_DEF = 0x1a
@@ -310,3 +311,21 @@ class CommandBuilder:
payload = payload[chunk_size:]
p1 = P1Type.SIGN_SUBSQT_CHUNK
return chunks
def provide_erc20_token_information(self,
ticker: str,
addr: bytes,
decimals: int,
chain_id: int,
sig: bytes) -> bytes:
payload = bytearray()
payload.append(len(ticker))
payload += ticker.encode()
payload += addr
payload += struct.pack(">I", decimals)
payload += struct.pack(">I", chain_id)
payload += sig
return self._serialize(InsType.PROVIDE_ERC20_TOKEN_INFORMATION,
0x00,
0x00,
payload)