82 lines
2.9 KiB
Swift
82 lines
2.9 KiB
Swift
// 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 DeleteAllBeforeRequest: SnodeAuthenticatedRequestBody {
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enum CodingKeys: String, CodingKey {
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case beforeMs = "before"
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case namespace
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}
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let beforeMs: UInt64
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let namespace: SnodeAPI.Namespace?
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// MARK: - Init
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public init(
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beforeMs: UInt64,
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namespace: SnodeAPI.Namespace?,
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pubkey: 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.beforeMs = beforeMs
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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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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(beforeMs, forKey: .beforeMs)
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// If no namespace is specified it defaults to the default namespace only (namespace
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// 0), so instead in this case we want to explicitly delete from `all` namespaces
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switch namespace {
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case .some(let namespace): try container.encode(namespace, forKey: .namespace)
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case .none: try container.encode("all", forKey: .namespace)
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}
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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 `("delete_before" || namespace || before)`, signed by
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/// `pubkey`. Must be base64 encoded (json) or bytes (OMQ). `namespace` is the stringified
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/// version of the given non-default namespace parameter (i.e. "-42" or "all"), or the empty
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/// string for the default namespace (whether explicitly given or not).
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let verificationBytes: [UInt8] = SnodeAPI.Endpoint.deleteAllBefore.rawValue.bytes
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.appending(
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contentsOf: (namespace == nil ?
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"all" :
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namespace?.verificationString
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)?.bytes
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)
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.appending(contentsOf: "\(beforeMs)".data(using: .ascii)?.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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