libsignal/swift/Sources/LibSignalClient/Cds2.swift

//
// Copyright 2022 Signal Messenger, LLC.
// SPDX-License-Identifier: AGPL-3.0-only
//

import SignalFfi
import Foundation

///
/// Cds2Client provides bindings to interact with Signal's v2 Contact Discovery Service.
///
/// See ``SgxClient``
public class Cds2Client: SgxClient {

    public convenience init<MrenclaveBytes, AttestationBytes>(mrenclave: MrenclaveBytes, attestationMessage: AttestationBytes, currentDate: Date) throws
        where MrenclaveBytes: ContiguousBytes, AttestationBytes: ContiguousBytes {
        let handle: OpaquePointer? = try attestationMessage.withUnsafeBorrowedBuffer { attestationMessageBuffer in
            try mrenclave.withUnsafeBorrowedBuffer { mrenclaveBuffer in
                var result: OpaquePointer?
                try checkError(signal_cds2_client_state_new(&result,
                        mrenclaveBuffer,
                        attestationMessageBuffer,
                        UInt64(currentDate.timeIntervalSince1970 * 1000)))
                return result
            }
        }
        self.init(owned: handle!)
    }
}