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73 lines
2.5 KiB
Swift
73 lines
2.5 KiB
Swift
2 years ago
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// Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.
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import Foundation
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extension SnodeAPI {
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public class GetMessagesRequest: SnodeAuthenticatedRequestBody {
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enum CodingKeys: String, CodingKey {
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case lastHash = "last_hash"
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case namespace
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}
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let lastHash: String
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let namespace: SnodeAPI.Namespace?
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// MARK: - Init
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public init(
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lastHash: String,
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namespace: SnodeAPI.Namespace?,
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pubkey: String,
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subkey: String?,
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timestampMs: UInt64,
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ed25519PublicKey: [UInt8],
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ed25519SecretKey: [UInt8]
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) {
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self.lastHash = lastHash
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self.namespace = namespace
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super.init(
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pubkey: pubkey,
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ed25519PublicKey: ed25519PublicKey,
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ed25519SecretKey: ed25519SecretKey,
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subkey: subkey,
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timestampMs: timestampMs
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)
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}
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// MARK: - Coding
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override public func encode(to encoder: Encoder) throws {
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var container: KeyedEncodingContainer<CodingKeys> = encoder.container(keyedBy: CodingKeys.self)
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try container.encode(lastHash, forKey: .lastHash)
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try container.encodeIfPresent(namespace, forKey: .namespace)
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try super.encode(to: encoder)
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}
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// MARK: - Abstract Methods
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override func generateSignature() throws -> [UInt8] {
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/// Ed25519 signature of `("retrieve" || namespace || timestamp)` (if using a non-0
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/// namespace), or `("retrieve" || timestamp)` when fetching from the default namespace. Both
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/// namespace and timestamp are the base10 expressions of the relevant values. Must be base64
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/// encoded for json requests; binary for OMQ requests.
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let verificationBytes: [UInt8] = SnodeAPI.Endpoint.getMessages.rawValue.bytes
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.appending(contentsOf: namespace?.verificationString.bytes)
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.appending(contentsOf: timestampMs.map { "\($0)" }?.data(using: .utf8)?.bytes)
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guard
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let signatureBytes: [UInt8] = sodium.wrappedValue.sign.signature(
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message: verificationBytes,
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secretKey: ed25519SecretKey
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)
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else {
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throw SnodeAPIError.signingFailed
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}
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return signatureBytes
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}
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}
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}
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