/// <summary>
/// Adds a consensus rule ensuring only contracts with hashes that are on the PoA whitelist are able to be deployed.
/// The PoA feature must be installed for this to function correctly.
/// </summary>
/// <param name="options">The smart contract options.</param>
/// <returns>The options provided.</returns>
public static SmartContractOptions UsePoAWhitelistedContracts(this SmartContractOptions options)
{
IServiceCollection services = options.Services;
services.AddSingleton <IWhitelistedHashChecker, WhitelistedHashChecker>();
services.AddSingleton <IContractCodeHashingStrategy, Keccak256CodeHashingStrategy>();
// Registers an additional contract tx validation consensus rule which checks whether the hash of the contract being deployed is whitelisted.
services.AddSingleton <IContractTransactionFullValidationRule, AllowedCodeHashLogic>();
return(options);
}
public static SmartContractOptions UseSignedContracts(this SmartContractOptions options)
{
IServiceCollection services = options.Services;
var networkWithPubKey = (ISignedCodePubKeyHolder)options.Network;
// Replace serializer
services.RemoveAll <ICallDataSerializer>();
services.AddSingleton <ICallDataSerializer, SignedCodeCallDataSerializer>();
services.AddSingleton <IContractTransactionValidationLogic>(f => new ContractSignedCodeLogic(new ContractSigner(), networkWithPubKey.SigningContractPubKey));
return(options);
}
/// <summary>
/// Adds a consensus rule ensuring that only contracts which have been signed by a signing authority can be deployed.
/// Must be registered after the SmartContracts feature is added.
/// </summary>
/// <param name="options">The smart contract options.</param>
/// <param name="signingContractPubKey">The public key of the signing authority.</param>
/// <returns>The options provided.</returns>
public static SmartContractOptions UseSignedContracts(this SmartContractOptions options, PubKey signingContractPubKey)
{
IServiceCollection services = options.Services;
// Replace serializer. This is necessary because the new serialized transactions will include a signature.
services.RemoveAll <ICallDataSerializer>();
services.AddSingleton <ICallDataSerializer, SignedCodeCallDataSerializer>();
services.AddSingleton <IContractSigner, ContractSigner>();
// Add consensus rule.
services.AddSingleton <IContractTransactionPartialValidationRule>(f => new ContractSignedCodeLogic(f.GetService <IContractSigner>(), signingContractPubKey));
return(options);
}
/// <summary>
/// Adds a consensus rule ensuring only contracts with hashes that are on the PoA whitelist are able to be deployed.
/// The PoA feature must be installed for this to function correctly.
/// </summary>
/// <param name="options">The smart contract options.</param>
/// <param name="devMode">Disables whitelisting and contract hash checking when the node is in dev mode.</param>
/// <returns>The options provided.</returns>
public static SmartContractOptions UsePoAWhitelistedContracts(this SmartContractOptions options, bool devMode = false)
{
IServiceCollection services = options.Services;
services.AddSingleton <IContractCodeHashingStrategy, Keccak256CodeHashingStrategy>();
if (!devMode)
{
// These may have been registered by UsePoAMempoolRules already.
services.AddSingleton <IWhitelistedHashChecker, WhitelistedHashChecker>();
// Registers an additional contract tx validation consensus rule which checks whether the hash of the contract being deployed is whitelisted.
services.AddSingleton <IContractTransactionFullValidationRule, AllowedCodeHashLogic>();
}
return(options);
}