private void AddMultisigChWallet(byte[] addr, MultisigWalletChangeType change_type, byte[] signer_pub_key, byte[] signer_nonce)
{
using (MemoryStream ms = new MemoryStream())
{
using (BinaryWriter bw = new BinaryWriter(ms))
{
bw.Write(multisigStartMarker[0]);
bw.Write(multisigStartMarker[1]);
bw.Write((byte)change_type);
bw.Write(addr.Length);
bw.Write(addr);
bw.Write(signer_pub_key.Length);
bw.Write(signer_pub_key);
bw.Write(signer_nonce.Length);
bw.Write(signer_nonce);
data = ms.ToArray();
}
}
}
private object getChangeMultisigWalletData()
{
if (data == null || data.Length < 6)
{
return(null);
}
using (MemoryStream ms = new MemoryStream(data))
{
using (BinaryReader rd = new BinaryReader(ms))
{
try
{
byte start_marker_1 = rd.ReadByte();
byte start_marker_2 = rd.ReadByte();
if (start_marker_1 != multisigStartMarker[0] || start_marker_2 != multisigStartMarker[1])
{
Logging.warn(String.Format("Multisig change transaction: Invalid multisig transaction: Data start marker does not match! ({0}, {1})", start_marker_1, start_marker_2));
return(null);
}
// multisig change type
MultisigWalletChangeType change_type = (MultisigWalletChangeType)rd.ReadByte();
switch (change_type)
{
case MultisigWalletChangeType.AddSigner:
int ch_addr_len = rd.ReadInt32();
if (ch_addr_len < 36 || ch_addr_len > 128)
{
Logging.warn("Multisig change transaction: Adding signer, but the data does not contain a valid address!");
return(null);
}
byte[] ch_addr = rd.ReadBytes(ch_addr_len);
if (ch_addr == null || ch_addr.Length < ch_addr_len)
{
Logging.warn("Multisig change transaction: Adding signer, but the address data was corrupted.");
return(null);
}
int signer_pub_key_len = rd.ReadInt32();
if (signer_pub_key_len < 36 || signer_pub_key_len > 2500)
{
Logging.warn(String.Format("Multisig transaction: Invalid signer pub key length stored in data: {0}", signer_pub_key_len));
return(null);
}
if (signer_pub_key_len == 0)
{
return(null);
}
byte[] signer_pub_key = rd.ReadBytes(signer_pub_key_len);
int signer_nonce_len = rd.ReadInt32();
if (signer_nonce_len > 16)
{
Logging.warn(String.Format("Multisig transaction: Invalid signer nonce length stored in data: {0}", signer_nonce_len));
return(null);
}
byte[] signer_nonce = rd.ReadBytes(signer_nonce_len);
return(new MultisigAddrAdd
{
addrToAdd = ch_addr,
signerPubKey = signer_pub_key,
signerNonce = signer_nonce
});
case MultisigWalletChangeType.DelSigner:
ch_addr_len = rd.ReadInt32();
if (ch_addr_len < 36 || ch_addr_len > 128)
{
Logging.warn("Multisig change transaction: Deleting signer, but the data does not contain a valid address!");
return(null);
}
ch_addr = rd.ReadBytes(ch_addr_len);
if (ch_addr == null || ch_addr.Length < ch_addr_len)
{
Logging.warn("Multisig change transaction: Deleting signer, but the address data was corrupted.");
return(null);
}
signer_pub_key_len = rd.ReadInt32();
if (signer_pub_key_len < 36 || signer_pub_key_len > 2500)
{
Logging.warn(String.Format("Multisig transaction: Invalid signer pub key length stored in data: {0}", signer_pub_key_len));
return(null);
}
if (signer_pub_key_len == 0)
{
return(null);
}
signer_pub_key = rd.ReadBytes(signer_pub_key_len);
signer_nonce_len = rd.ReadInt32();
if (signer_nonce_len > 16)
{
Logging.warn(String.Format("Multisig transaction: Invalid signer nonce length stored in data: {0}", signer_nonce_len));
return(null);
}
signer_nonce = rd.ReadBytes(signer_nonce_len);
return(new MultisigAddrDel
{
addrToDel = ch_addr,
signerPubKey = signer_pub_key,
signerNonce = signer_nonce
});
case MultisigWalletChangeType.ChangeReqSigs:
byte new_req_sigs = rd.ReadByte();
signer_pub_key_len = rd.ReadInt32();
if (signer_pub_key_len < 36 || signer_pub_key_len > 2500)
{
Logging.warn(String.Format("Multisig transaction: Invalid signer pub key length stored in data: {0}", signer_pub_key_len));
return(null);
}
if (signer_pub_key_len == 0)
{
return(null);
}
signer_pub_key = rd.ReadBytes(signer_pub_key_len);
signer_nonce_len = rd.ReadInt32();
if (signer_nonce_len > 16)
{
Logging.warn(String.Format("Multisig transaction: Invalid signer nonce length stored in data: {0}", signer_nonce_len));
return(null);
}
signer_nonce = rd.ReadBytes(signer_nonce_len);
return(new MultisigChSig
{
reqSigs = new_req_sigs,
signerPubKey = signer_pub_key,
signerNonce = signer_nonce
});
default:
Logging.warn(String.Format("Invalid MultisigWalletChangeType for a multisig change transaction {{ {0} }}.", id));
return(null);
}
}
catch (Exception)
{
// early EOL or strange data error
return(null);
}
}
}
}
