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1188 lines
53 KiB
Swift
1188 lines
53 KiB
Swift
// Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.
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//
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// stringlint:disable
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import Foundation
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import Combine
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import Sodium
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import GRDB
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import SessionUtilitiesKit
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public extension Network.RequestType {
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static func message(
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_ message: SnodeMessage,
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in namespace: SnodeAPI.Namespace
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) -> Network.RequestType<SendMessagesResponse> {
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return Network.RequestType(id: "snodeAPI.sendMessage", args: [message, namespace]) {
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SnodeAPI.sendMessage(message, in: namespace, using: $0)
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}
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}
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}
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public final class SnodeAPI {
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internal static let sodium: Atomic<Sodium> = Atomic(Sodium())
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/// The offset between the user's clock and the Service Node's clock. Used in cases where the
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/// user's clock is incorrect.
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///
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/// - Note: Should only be accessed from `Threading.workQueue` to avoid race conditions.
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public static var clockOffsetMs: Atomic<Int64> = Atomic(0)
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// MARK: - Hardfork version
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public static var hardfork = UserDefaults.standard[.hardfork]
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public static var softfork = UserDefaults.standard[.softfork]
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// MARK: - Settings
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public static let maxRetryCount: Int = 8
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public static func currentOffsetTimestampMs() -> Int64 {
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return Int64(
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Int64(floor(Date().timeIntervalSince1970 * 1000)) +
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SnodeAPI.clockOffsetMs.wrappedValue
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)
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}
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// MARK: - Batching & Polling
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public static func poll(
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namespaces: [SnodeAPI.Namespace],
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refreshingConfigHashes: [String] = [],
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from snode: LibSession.Snode,
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swarmPublicKey: String,
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using dependencies: Dependencies
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) -> AnyPublisher<[SnodeAPI.Namespace: (info: ResponseInfoType, data: (messages: [SnodeReceivedMessage], lastHash: String?)?)], Error> {
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guard let userED25519KeyPair = Identity.fetchUserEd25519KeyPair() else {
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return Fail(error: SnodeAPIError.noKeyPair)
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.eraseToAnyPublisher()
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}
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let userX25519PublicKey: String = getUserHexEncodedPublicKey(using: dependencies)
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// Prune expired message hashes for this namespace on this service node
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return Just(())
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.setFailureType(to: Error.self)
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.map { _ -> [SnodeAPI.Namespace: String] in
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namespaces.reduce(into: [:]) { result, namespace in
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guard namespace.shouldFetchSinceLastHash else { return }
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// Prune expired message hashes for this namespace on this service node
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SnodeReceivedMessageInfo.pruneExpiredMessageHashInfo(
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for: snode,
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namespace: namespace,
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associatedWith: swarmPublicKey,
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using: dependencies
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)
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result[namespace] = SnodeReceivedMessageInfo
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.fetchLastNotExpired(
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for: snode,
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namespace: namespace,
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associatedWith: swarmPublicKey,
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using: dependencies
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)?
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.hash
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}
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}
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.tryFlatMap { namespaceLastHash -> AnyPublisher<[SnodeAPI.Namespace: (info: ResponseInfoType, data: (messages: [SnodeReceivedMessage], lastHash: String?)?)], Error> in
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var requests: [any ErasedPreparedRequest] = []
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// If we have any config hashes to refresh TTLs then add those requests first
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if !refreshingConfigHashes.isEmpty {
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requests.append(
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try SnodeAPI.prepareRequest(
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request: Request(
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endpoint: .expire,
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swarmPublicKey: swarmPublicKey,
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body: UpdateExpiryRequest(
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messageHashes: refreshingConfigHashes,
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expiryMs: UInt64(
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SnodeAPI.currentOffsetTimestampMs() +
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(30 * 24 * 60 * 60 * 1000) // 30 days
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),
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extend: true,
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pubkey: userX25519PublicKey,
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ed25519PublicKey: userED25519KeyPair.publicKey,
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ed25519SecretKey: userED25519KeyPair.secretKey,
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subkey: nil // TODO: Need to get this
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)
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),
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responseType: UpdateExpiryResponse.self,
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using: dependencies
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)
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)
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}
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// Determine the maxSize each namespace in the request should take up
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let namespaceMaxSizeMap: [SnodeAPI.Namespace: Int64] = SnodeAPI.Namespace.maxSizeMap(for: namespaces)
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let fallbackSize: Int64 = (namespaceMaxSizeMap.values.min() ?? 1)
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// Add the various 'getMessages' requests
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requests.append(
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contentsOf: try namespaces.map { namespace -> any ErasedPreparedRequest in
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// Check if this namespace requires authentication
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guard namespace.requiresReadAuthentication else {
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return try SnodeAPI.prepareRequest(
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request: Request(
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endpoint: .getMessages,
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swarmPublicKey: swarmPublicKey,
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body: LegacyGetMessagesRequest(
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pubkey: swarmPublicKey,
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lastHash: (namespaceLastHash[namespace] ?? ""),
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namespace: namespace,
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maxCount: nil,
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maxSize: namespaceMaxSizeMap[namespace]
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.defaulting(to: fallbackSize)
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)
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),
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responseType: GetMessagesResponse.self,
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using: dependencies
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)
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}
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return try SnodeAPI.prepareRequest(
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request: Request(
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endpoint: .getMessages,
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swarmPublicKey: swarmPublicKey,
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body: GetMessagesRequest(
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lastHash: (namespaceLastHash[namespace] ?? ""),
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namespace: namespace,
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pubkey: swarmPublicKey,
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subkey: nil, // TODO: Need to get this
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timestampMs: UInt64(SnodeAPI.currentOffsetTimestampMs()),
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ed25519PublicKey: userED25519KeyPair.publicKey,
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ed25519SecretKey: userED25519KeyPair.secretKey,
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maxSize: namespaceMaxSizeMap[namespace]
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.defaulting(to: fallbackSize)
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)
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),
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responseType: GetMessagesResponse.self,
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using: dependencies
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)
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}
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)
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// Actually send the request
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return try SnodeAPI
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.prepareRequest(
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request: Request(
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endpoint: .batch,
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snode: snode,
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swarmPublicKey: swarmPublicKey,
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body: Network.BatchRequest(requestsKey: .requests, requests: requests)
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),
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responseType: Network.BatchResponse.self,
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requireAllBatchResponses: true,
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using: dependencies
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)
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.send(using: dependencies)
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.map { (_: ResponseInfoType, batchResponse: Network.BatchResponse) -> [SnodeAPI.Namespace: (info: ResponseInfoType, data: (messages: [SnodeReceivedMessage], lastHash: String?)?)] in
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let messageResponses: [Network.BatchSubResponse<GetMessagesResponse>] = batchResponse
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.compactMap { $0 as? Network.BatchSubResponse<GetMessagesResponse> }
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/// Since we have extended the TTL for a number of messages we need to make sure we update the local
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/// `SnodeReceivedMessageInfo.expirationDateMs` values so we don't end up deleting them
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/// incorrectly before they actually expire on the swarm
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if
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!refreshingConfigHashes.isEmpty,
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let refreshTTLSubReponse: Network.BatchSubResponse<UpdateExpiryResponse> = batchResponse
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.first(where: { $0 is Network.BatchSubResponse<UpdateExpiryResponse> })
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.asType(Network.BatchSubResponse<UpdateExpiryResponse>.self),
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let refreshTTLResponse: UpdateExpiryResponse = refreshTTLSubReponse.body,
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let validResults: [String: UpdateExpiryResponseResult] = try? refreshTTLResponse.validResultMap(
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sodium: sodium.wrappedValue,
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userX25519PublicKey: getUserHexEncodedPublicKey(),
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validationData: refreshingConfigHashes
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),
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let targetResult: UpdateExpiryResponseResult = validResults[snode.ed25519PubkeyHex],
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let groupedExpiryResult: [UInt64: [String]] = targetResult.changed
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.updated(with: targetResult.unchanged)
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.groupedByValue()
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.nullIfEmpty()
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{
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dependencies.storage.writeAsync { db in
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try groupedExpiryResult.forEach { updatedExpiry, hashes in
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try SnodeReceivedMessageInfo
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.filter(hashes.contains(SnodeReceivedMessageInfo.Columns.hash))
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.updateAll(
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db,
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SnodeReceivedMessageInfo.Columns.expirationDateMs
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.set(to: updatedExpiry)
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)
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}
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}
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}
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return zip(namespaces, messageResponses)
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.reduce(into: [:]) { result, next in
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guard let messageResponse: GetMessagesResponse = next.1.body else { return }
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let namespace: SnodeAPI.Namespace = next.0
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result[namespace] = (
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info: next.1,
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data: (
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messages: messageResponse.messages
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.compactMap { rawMessage -> SnodeReceivedMessage? in
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SnodeReceivedMessage(
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snode: snode,
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publicKey: swarmPublicKey,
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namespace: namespace,
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rawMessage: rawMessage
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)
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},
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lastHash: namespaceLastHash[namespace]
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)
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)
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}
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}
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.eraseToAnyPublisher()
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}
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.eraseToAnyPublisher()
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}
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public static func preparedSequence(
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requests: [any ErasedPreparedRequest],
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requireAllBatchResponses: Bool,
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swarmPublicKey: String,
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using dependencies: Dependencies
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) throws -> Network.PreparedRequest<Network.BatchResponse> {
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return try SnodeAPI
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.prepareRequest(
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request: Request(
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endpoint: .sequence,
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swarmPublicKey: swarmPublicKey,
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body: Network.BatchRequest(requestsKey: .requests, requests: requests)
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),
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responseType: Network.BatchResponse.self,
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requireAllBatchResponses: requireAllBatchResponses,
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using: dependencies
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)
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}
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/// **Note:** This is the direct request to retrieve messages so should be retrieved automatically from the `poll()` method, in order to call
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/// this directly remove the `@available` line
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@available(*, unavailable, message: "Avoid using this directly, use the pre-built `poll()` method instead")
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public static func getMessages(
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in namespace: SnodeAPI.Namespace,
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from snode: LibSession.Snode,
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swarmPublicKey: String,
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using dependencies: Dependencies = Dependencies()
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) -> AnyPublisher<(info: ResponseInfoType, data: (messages: [SnodeReceivedMessage], lastHash: String?)?), Error> {
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return Deferred {
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Future<String?, Error> { resolver in
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// Prune expired message hashes for this namespace on this service node
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SnodeReceivedMessageInfo.pruneExpiredMessageHashInfo(
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for: snode,
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namespace: namespace,
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associatedWith: swarmPublicKey,
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using: dependencies
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)
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let maybeLastHash: String? = SnodeReceivedMessageInfo
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.fetchLastNotExpired(
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for: snode,
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namespace: namespace,
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associatedWith: swarmPublicKey,
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using: dependencies
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)?
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.hash
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resolver(Result.success(maybeLastHash))
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}
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}
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.tryFlatMap { lastHash -> AnyPublisher<(info: ResponseInfoType, data: GetMessagesResponse?, lastHash: String?), Error> in
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guard namespace.requiresReadAuthentication else {
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return try SnodeAPI
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.prepareRequest(
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request: Request(
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endpoint: .getMessages,
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snode: snode,
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swarmPublicKey: swarmPublicKey,
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body: LegacyGetMessagesRequest(
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pubkey: swarmPublicKey,
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lastHash: (lastHash ?? ""),
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namespace: namespace,
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maxCount: nil,
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maxSize: nil
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)
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),
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responseType: GetMessagesResponse.self,
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using: dependencies
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)
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.send(using: dependencies)
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.map { info, data in (info, data, lastHash) }
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.eraseToAnyPublisher()
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}
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guard let userED25519KeyPair: KeyPair = Storage.shared.read({ db in Identity.fetchUserEd25519KeyPair(db) }) else {
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throw SnodeAPIError.noKeyPair
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}
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return try SnodeAPI
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.prepareRequest(
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request: Request(
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endpoint: .getMessages,
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snode: snode,
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swarmPublicKey: swarmPublicKey,
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body: GetMessagesRequest(
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lastHash: (lastHash ?? ""),
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namespace: namespace,
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pubkey: swarmPublicKey,
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subkey: nil,
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timestampMs: UInt64(SnodeAPI.currentOffsetTimestampMs()),
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ed25519PublicKey: userED25519KeyPair.publicKey,
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ed25519SecretKey: userED25519KeyPair.secretKey
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)
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),
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responseType: GetMessagesResponse.self,
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using: dependencies
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)
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.send(using: dependencies)
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.map { info, data in (info, data, lastHash) }
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.eraseToAnyPublisher()
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}
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.map { info, data, lastHash -> (info: ResponseInfoType, data: (messages: [SnodeReceivedMessage], lastHash: String?)?) in
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return (
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info: info,
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data: data.map { messageResponse -> (messages: [SnodeReceivedMessage], lastHash: String?) in
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return (
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messages: messageResponse.messages
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.compactMap { rawMessage -> SnodeReceivedMessage? in
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SnodeReceivedMessage(
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snode: snode,
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publicKey: swarmPublicKey,
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namespace: namespace,
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rawMessage: rawMessage
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)
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},
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lastHash: lastHash
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)
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}
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)
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}
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.eraseToAnyPublisher()
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}
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public static func getSessionID(
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for onsName: String,
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using dependencies: Dependencies = Dependencies()
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) -> AnyPublisher<String, Error> {
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let validationCount = 3
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// The name must be lowercased
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let onsName = onsName.lowercased()
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// Hash the ONS name using BLAKE2b
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let nameAsData = [UInt8](onsName.data(using: String.Encoding.utf8)!)
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guard let nameHash = sodium.wrappedValue.genericHash.hash(message: nameAsData) else {
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return Fail(error: SnodeAPIError.onsHashingFailed)
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.eraseToAnyPublisher()
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}
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// Ask 3 different snodes for the Session ID associated with the given name hash
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let base64EncodedNameHash = nameHash.toBase64()
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return LibSession
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.getRandomNodes(count: validationCount)
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.tryFlatMap { nodes in
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Publishers.MergeMany(
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try nodes.map { snode in
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try SnodeAPI
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.prepareRequest(
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request: Request(
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endpoint: .oxenDaemonRPCCall,
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snode: snode,
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body: OxenDaemonRPCRequest(
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endpoint: .daemonOnsResolve,
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body: ONSResolveRequest(
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type: 0, // type 0 means Session
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base64EncodedNameHash: base64EncodedNameHash
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)
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)
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),
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responseType: ONSResolveResponse.self,
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using: dependencies
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)
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.tryMap { _, response -> String in
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try response.sessionId(
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sodium: sodium.wrappedValue,
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nameBytes: nameAsData,
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nameHashBytes: nameHash
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)
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}
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.send(using: dependencies)
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.retry(4)
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.map { _, sessionId in sessionId }
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.eraseToAnyPublisher()
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}
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)
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}
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.collect()
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.tryMap { results -> String in
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guard results.count == validationCount, Set(results).count == 1 else {
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throw SnodeAPIError.onsValidationFailed
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}
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return results[0]
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}
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.eraseToAnyPublisher()
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}
|
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|
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public static func getExpiries(
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swarmPublicKey: String,
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of serverHashes: [String],
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using dependencies: Dependencies = Dependencies()
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) -> AnyPublisher<(ResponseInfoType, GetExpiriesResponse), Error> {
|
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guard let userED25519KeyPair = Identity.fetchUserEd25519KeyPair() else {
|
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return Fail(error: SnodeAPIError.noKeyPair)
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.eraseToAnyPublisher()
|
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}
|
|
|
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let sendTimestamp: UInt64 = UInt64(SnodeAPI.currentOffsetTimestampMs())
|
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|
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// FIXME: There is a bug on SS now that a single-hash lookup is not working. Remove it when the bug is fixed
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let serverHashes: [String] = serverHashes.appending("///////////////////////////////////////////") // Fake hash with valid length
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do {
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return try SnodeAPI
|
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.prepareRequest(
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request: Request(
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endpoint: .getExpiries,
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swarmPublicKey: swarmPublicKey,
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body: GetExpiriesRequest(
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messageHashes: serverHashes,
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pubkey: swarmPublicKey,
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subkey: nil,
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|
timestampMs: sendTimestamp,
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ed25519PublicKey: userED25519KeyPair.publicKey,
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ed25519SecretKey: userED25519KeyPair.secretKey
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)
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),
|
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responseType: GetExpiriesResponse.self,
|
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using: dependencies
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|
)
|
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.send(using: dependencies)
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}
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catch { return Fail(error: error).eraseToAnyPublisher() }
|
|
}
|
|
|
|
// MARK: - Store
|
|
|
|
public static func preparedSendMessage(
|
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_ db: Database,
|
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message: SnodeMessage,
|
|
in namespace: Namespace,
|
|
using dependencies: Dependencies
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|
) throws -> Network.PreparedRequest<SendMessagesResponse> {
|
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let swarmPublicKey: String = message.recipient
|
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let userX25519PublicKey: String = getUserHexEncodedPublicKey()
|
|
|
|
let request: Network.PreparedRequest<SendMessagesResponse> = try {
|
|
// Check if this namespace requires authentication
|
|
guard namespace.requiresWriteAuthentication else {
|
|
return try SnodeAPI.prepareRequest(
|
|
request: Request(
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|
endpoint: .sendMessage,
|
|
swarmPublicKey: swarmPublicKey,
|
|
body: LegacySendMessagesRequest(
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|
message: message,
|
|
namespace: namespace
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|
)
|
|
),
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|
responseType: SendMessagesResponse.self,
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|
using: dependencies
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)
|
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}
|
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|
|
guard let userED25519KeyPair: KeyPair = Identity.fetchUserEd25519KeyPair(db) else {
|
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throw SnodeAPIError.noKeyPair
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}
|
|
|
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return try SnodeAPI.prepareRequest(
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request: Request(
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endpoint: .sendMessage,
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swarmPublicKey: swarmPublicKey,
|
|
body: SendMessageRequest(
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|
message: message,
|
|
namespace: namespace,
|
|
subkey: nil,
|
|
timestampMs: UInt64(SnodeAPI.currentOffsetTimestampMs()),
|
|
ed25519PublicKey: userED25519KeyPair.publicKey,
|
|
ed25519SecretKey: userED25519KeyPair.secretKey
|
|
)
|
|
),
|
|
responseType: SendMessagesResponse.self,
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|
using: dependencies
|
|
)
|
|
}()
|
|
|
|
return request
|
|
.tryMap { _, response -> SendMessagesResponse in
|
|
try response.validateResultMap(
|
|
sodium: sodium.wrappedValue,
|
|
userX25519PublicKey: userX25519PublicKey
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|
)
|
|
|
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return response
|
|
}
|
|
}
|
|
|
|
public static func sendMessage(
|
|
_ message: SnodeMessage,
|
|
in namespace: Namespace,
|
|
using dependencies: Dependencies
|
|
) -> AnyPublisher<(ResponseInfoType, SendMessagesResponse), Error> {
|
|
let swarmPublicKey: String = message.recipient
|
|
let userX25519PublicKey: String = getUserHexEncodedPublicKey()
|
|
|
|
do {
|
|
let request: Network.PreparedRequest<SendMessagesResponse> = try {
|
|
// Check if this namespace requires authentication
|
|
guard namespace.requiresWriteAuthentication else {
|
|
return try SnodeAPI.prepareRequest(
|
|
request: Request(
|
|
endpoint: .sendMessage,
|
|
swarmPublicKey: swarmPublicKey,
|
|
body: LegacySendMessagesRequest(
|
|
message: message,
|
|
namespace: namespace
|
|
)
|
|
),
|
|
responseType: SendMessagesResponse.self,
|
|
using: dependencies
|
|
)
|
|
}
|
|
|
|
guard let userED25519KeyPair: KeyPair = Storage.shared.read({ db in Identity.fetchUserEd25519KeyPair(db) }) else {
|
|
throw SnodeAPIError.noKeyPair
|
|
}
|
|
|
|
return try SnodeAPI.prepareRequest(
|
|
request: Request(
|
|
endpoint: .sendMessage,
|
|
swarmPublicKey: swarmPublicKey,
|
|
body: SendMessageRequest(
|
|
message: message,
|
|
namespace: namespace,
|
|
subkey: nil,
|
|
timestampMs: UInt64(SnodeAPI.currentOffsetTimestampMs()),
|
|
ed25519PublicKey: userED25519KeyPair.publicKey,
|
|
ed25519SecretKey: userED25519KeyPair.secretKey
|
|
)
|
|
),
|
|
responseType: SendMessagesResponse.self,
|
|
using: dependencies
|
|
)
|
|
}()
|
|
|
|
return request
|
|
.tryMap { info, response -> SendMessagesResponse in
|
|
try response.validateResultMap(
|
|
sodium: sodium.wrappedValue,
|
|
userX25519PublicKey: userX25519PublicKey
|
|
)
|
|
|
|
return response
|
|
}
|
|
.send(using: dependencies)
|
|
}
|
|
catch { return Fail(error: error).eraseToAnyPublisher() }
|
|
}
|
|
|
|
public static func sendConfigMessages(
|
|
_ messages: [(message: SnodeMessage, namespace: Namespace)],
|
|
allObsoleteHashes: [String],
|
|
swarmPublicKey: String,
|
|
using dependencies: Dependencies = Dependencies()
|
|
) -> AnyPublisher<Network.BatchResponse, Error> {
|
|
guard !messages.isEmpty || !allObsoleteHashes.isEmpty else {
|
|
return Fail(error: NetworkError.invalidPreparedRequest)
|
|
.eraseToAnyPublisher()
|
|
}
|
|
// TODO: Need to get either the closed group subKey or the userEd25519 key for auth
|
|
guard let userED25519KeyPair = Identity.fetchUserEd25519KeyPair() else {
|
|
return Fail(error: SnodeAPIError.noKeyPair)
|
|
.eraseToAnyPublisher()
|
|
}
|
|
|
|
do {
|
|
let userX25519PublicKey: String = getUserHexEncodedPublicKey()
|
|
var requests: [any ErasedPreparedRequest] = try messages
|
|
.map { message, namespace in
|
|
// Check if this namespace requires authentication
|
|
guard namespace.requiresWriteAuthentication else {
|
|
return try SnodeAPI.prepareRequest(
|
|
request: Request(
|
|
endpoint: .sendMessage,
|
|
swarmPublicKey: swarmPublicKey,
|
|
body: LegacySendMessagesRequest(
|
|
message: message,
|
|
namespace: namespace
|
|
)
|
|
),
|
|
responseType: SendMessagesResponse.self,
|
|
using: dependencies
|
|
)
|
|
}
|
|
|
|
return try SnodeAPI.prepareRequest(
|
|
request: Request(
|
|
endpoint: .sendMessage,
|
|
swarmPublicKey: swarmPublicKey,
|
|
body: SendMessageRequest(
|
|
message: message,
|
|
namespace: namespace,
|
|
subkey: nil, // TODO: Need to get this
|
|
timestampMs: UInt64(SnodeAPI.currentOffsetTimestampMs()),
|
|
ed25519PublicKey: userED25519KeyPair.publicKey,
|
|
ed25519SecretKey: userED25519KeyPair.secretKey
|
|
)
|
|
),
|
|
responseType: SendMessagesResponse.self,
|
|
using: dependencies
|
|
)
|
|
}
|
|
|
|
// If we had any previous config messages then we should delete them
|
|
if !allObsoleteHashes.isEmpty {
|
|
requests.append(
|
|
try SnodeAPI.prepareRequest(
|
|
request: Request(
|
|
endpoint: .deleteMessages,
|
|
swarmPublicKey: swarmPublicKey,
|
|
body: DeleteMessagesRequest(
|
|
messageHashes: allObsoleteHashes,
|
|
requireSuccessfulDeletion: false,
|
|
swarmPublicKey: userX25519PublicKey,
|
|
ed25519PublicKey: userED25519KeyPair.publicKey,
|
|
ed25519SecretKey: userED25519KeyPair.secretKey
|
|
)
|
|
),
|
|
responseType: DeleteMessagesResponse.self,
|
|
using: dependencies
|
|
)
|
|
)
|
|
}
|
|
|
|
return try SnodeAPI
|
|
.prepareRequest(
|
|
request: Request(
|
|
endpoint: .sequence,
|
|
swarmPublicKey: swarmPublicKey,
|
|
body: Network.BatchRequest(requestsKey: .requests, requests: requests)
|
|
),
|
|
responseType: Network.BatchResponse.self,
|
|
requireAllBatchResponses: false,
|
|
using: dependencies
|
|
)
|
|
.send(using: dependencies)
|
|
.map { _, response in response }
|
|
.eraseToAnyPublisher()
|
|
}
|
|
catch { return Fail(error: error).eraseToAnyPublisher() }
|
|
}
|
|
|
|
// MARK: - Edit
|
|
|
|
public static func updateExpiry(
|
|
swarmPublicKey: String,
|
|
serverHashes: [String],
|
|
updatedExpiryMs: Int64,
|
|
shortenOnly: Bool? = nil,
|
|
extendOnly: Bool? = nil,
|
|
using dependencies: Dependencies = Dependencies()
|
|
) -> AnyPublisher<[String: UpdateExpiryResponseResult], Error> {
|
|
guard let userED25519KeyPair = Identity.fetchUserEd25519KeyPair() else {
|
|
return Fail(error: SnodeAPIError.noKeyPair)
|
|
.eraseToAnyPublisher()
|
|
}
|
|
|
|
// ShortenOnly and extendOnly cannot be true at the same time
|
|
guard shortenOnly == nil || extendOnly == nil else {
|
|
return Fail(error: NetworkError.invalidPreparedRequest)
|
|
.eraseToAnyPublisher()
|
|
}
|
|
|
|
// FIXME: There is a bug on SS now that a single-hash lookup is not working. Remove it when the bug is fixed
|
|
let serverHashes: [String] = serverHashes.appending("///////////////////////////////////////////") // Fake hash with valid length
|
|
|
|
do {
|
|
return try SnodeAPI
|
|
.prepareRequest(
|
|
request: Request(
|
|
endpoint: .expire,
|
|
swarmPublicKey: swarmPublicKey,
|
|
body: UpdateExpiryRequest(
|
|
messageHashes: serverHashes,
|
|
expiryMs: UInt64(updatedExpiryMs),
|
|
shorten: shortenOnly,
|
|
extend: extendOnly,
|
|
pubkey: swarmPublicKey,
|
|
ed25519PublicKey: userED25519KeyPair.publicKey,
|
|
ed25519SecretKey: userED25519KeyPair.secretKey,
|
|
subkey: nil
|
|
)
|
|
),
|
|
responseType: UpdateExpiryResponse.self,
|
|
using: dependencies
|
|
)
|
|
.send(using: dependencies)
|
|
.tryMap { _, response -> [String: UpdateExpiryResponseResult] in
|
|
try response.validResultMap(
|
|
sodium: sodium.wrappedValue,
|
|
userX25519PublicKey: getUserHexEncodedPublicKey(),
|
|
validationData: serverHashes
|
|
)
|
|
}
|
|
.eraseToAnyPublisher()
|
|
}
|
|
catch { return Fail(error: error).eraseToAnyPublisher() }
|
|
}
|
|
|
|
public static func revokeSubkey(
|
|
swarmPublicKey: String,
|
|
subkeyToRevoke: String,
|
|
using dependencies: Dependencies = Dependencies()
|
|
) -> AnyPublisher<Void, Error> {
|
|
guard let userED25519KeyPair = Identity.fetchUserEd25519KeyPair() else {
|
|
return Fail(error: SnodeAPIError.noKeyPair)
|
|
.eraseToAnyPublisher()
|
|
}
|
|
|
|
do {
|
|
return try SnodeAPI
|
|
.prepareRequest(
|
|
request: Request(
|
|
endpoint: .revokeSubaccount,
|
|
swarmPublicKey: swarmPublicKey,
|
|
body: RevokeSubkeyRequest(
|
|
subkeyToRevoke: subkeyToRevoke,
|
|
pubkey: swarmPublicKey,
|
|
ed25519PublicKey: userED25519KeyPair.publicKey,
|
|
ed25519SecretKey: userED25519KeyPair.secretKey
|
|
)
|
|
),
|
|
responseType: RevokeSubkeyResponse.self,
|
|
using: dependencies
|
|
)
|
|
.send(using: dependencies)
|
|
.tryMap { _, response -> Void in
|
|
try response.validateResultMap(
|
|
sodium: sodium.wrappedValue,
|
|
userX25519PublicKey: getUserHexEncodedPublicKey(),
|
|
validationData: subkeyToRevoke
|
|
)
|
|
|
|
return ()
|
|
}
|
|
.eraseToAnyPublisher()
|
|
}
|
|
catch { return Fail(error: error).eraseToAnyPublisher() }
|
|
}
|
|
|
|
// MARK: Delete
|
|
|
|
public static func preparedDeleteMessages(
|
|
_ db: Database,
|
|
swarmPublicKey: String,
|
|
serverHashes: [String],
|
|
requireSuccessfulDeletion: Bool,
|
|
using dependencies: Dependencies
|
|
) throws -> Network.PreparedRequest<[String: Bool]> {
|
|
guard let userED25519KeyPair = Identity.fetchUserEd25519KeyPair(db) else { throw SnodeAPIError.noKeyPair }
|
|
|
|
return try SnodeAPI
|
|
.prepareRequest(
|
|
request: Request(
|
|
endpoint: .deleteMessages,
|
|
swarmPublicKey: swarmPublicKey,
|
|
body: DeleteMessagesRequest(
|
|
messageHashes: serverHashes,
|
|
requireSuccessfulDeletion: requireSuccessfulDeletion,
|
|
swarmPublicKey: swarmPublicKey,
|
|
ed25519PublicKey: userED25519KeyPair.publicKey,
|
|
ed25519SecretKey: userED25519KeyPair.secretKey
|
|
)
|
|
),
|
|
responseType: DeleteMessagesResponse.self,
|
|
using: dependencies
|
|
)
|
|
.tryMap { _, response -> [String: Bool] in
|
|
let validResultMap: [String: Bool] = try response.validResultMap(
|
|
sodium: sodium.wrappedValue,
|
|
userX25519PublicKey: swarmPublicKey,
|
|
validationData: serverHashes
|
|
)
|
|
|
|
// If `validResultMap` didn't throw then at least one service node
|
|
// deleted successfully so we should mark the hash as invalid so we
|
|
// don't try to fetch updates using that hash going forward (if we
|
|
// do we would end up re-fetching all old messages)
|
|
Storage.shared.writeAsync { db in
|
|
try? SnodeReceivedMessageInfo.handlePotentialDeletedOrInvalidHash(
|
|
db,
|
|
potentiallyInvalidHashes: serverHashes
|
|
)
|
|
}
|
|
|
|
return validResultMap
|
|
}
|
|
}
|
|
|
|
public static func deleteMessages(
|
|
swarmPublicKey: String,
|
|
serverHashes: [String],
|
|
using dependencies: Dependencies = Dependencies()
|
|
) -> AnyPublisher<[String: Bool], Error> {
|
|
guard let userED25519KeyPair = Identity.fetchUserEd25519KeyPair() else {
|
|
return Fail(error: SnodeAPIError.noKeyPair)
|
|
.eraseToAnyPublisher()
|
|
}
|
|
|
|
let userX25519PublicKey: String = getUserHexEncodedPublicKey(using: dependencies)
|
|
|
|
do {
|
|
return try SnodeAPI
|
|
.prepareRequest(
|
|
request: Request(
|
|
endpoint: .deleteMessages,
|
|
swarmPublicKey: swarmPublicKey,
|
|
body: DeleteMessagesRequest(
|
|
messageHashes: serverHashes,
|
|
requireSuccessfulDeletion: false,
|
|
swarmPublicKey: userX25519PublicKey,
|
|
ed25519PublicKey: userED25519KeyPair.publicKey,
|
|
ed25519SecretKey: userED25519KeyPair.secretKey
|
|
)
|
|
),
|
|
responseType: DeleteMessagesResponse.self,
|
|
using: dependencies
|
|
)
|
|
.send(using: dependencies)
|
|
.tryMap { _, response -> [String: Bool] in
|
|
let validResultMap: [String: Bool] = try response.validResultMap(
|
|
sodium: sodium.wrappedValue,
|
|
userX25519PublicKey: userX25519PublicKey,
|
|
validationData: serverHashes
|
|
)
|
|
|
|
// If `validResultMap` didn't throw then at least one service node
|
|
// deleted successfully so we should mark the hash as invalid so we
|
|
// don't try to fetch updates using that hash going forward (if we
|
|
// do we would end up re-fetching all old messages)
|
|
Storage.shared.writeAsync { db in
|
|
try? SnodeReceivedMessageInfo.handlePotentialDeletedOrInvalidHash(
|
|
db,
|
|
potentiallyInvalidHashes: serverHashes
|
|
)
|
|
}
|
|
|
|
return validResultMap
|
|
}
|
|
.eraseToAnyPublisher()
|
|
}
|
|
catch { return Fail(error: error).eraseToAnyPublisher() }
|
|
}
|
|
|
|
/// Clears all the user's data from their swarm. Returns a dictionary of snode public key to deletion confirmation.
|
|
public static func deleteAllMessages(
|
|
namespace: SnodeAPI.Namespace,
|
|
using dependencies: Dependencies = Dependencies()
|
|
) -> AnyPublisher<[String: Bool], Error> {
|
|
guard let userED25519KeyPair = Identity.fetchUserEd25519KeyPair() else {
|
|
return Fail(error: SnodeAPIError.noKeyPair)
|
|
.eraseToAnyPublisher()
|
|
}
|
|
|
|
let userX25519PublicKey: String = getUserHexEncodedPublicKey()
|
|
|
|
do {
|
|
return try SnodeAPI
|
|
.prepareRequest(
|
|
request: Request(
|
|
endpoint: .deleteAll,
|
|
swarmPublicKey: userX25519PublicKey,
|
|
requiresLatestNetworkTime: true,
|
|
body: DeleteAllMessagesRequest(
|
|
namespace: namespace,
|
|
pubkey: userX25519PublicKey,
|
|
timestampMs: UInt64(SnodeAPI.currentOffsetTimestampMs()),
|
|
ed25519PublicKey: userED25519KeyPair.publicKey,
|
|
ed25519SecretKey: userED25519KeyPair.secretKey
|
|
)
|
|
),
|
|
responseType: DeleteAllMessagesResponse.self,
|
|
using: dependencies
|
|
)
|
|
.send(using: dependencies)
|
|
.tryMap { info, response -> [String: Bool] in
|
|
guard let targetInfo: LatestTimestampResponseInfo = info as? LatestTimestampResponseInfo else {
|
|
throw NetworkError.invalidResponse
|
|
}
|
|
|
|
return try response.validResultMap(
|
|
sodium: sodium.wrappedValue,
|
|
userX25519PublicKey: userX25519PublicKey,
|
|
validationData: targetInfo.timestampMs
|
|
)
|
|
}
|
|
.eraseToAnyPublisher()
|
|
}
|
|
catch { return Fail(error: error).eraseToAnyPublisher() }
|
|
}
|
|
|
|
/// Clears all the user's data from their swarm. Returns a dictionary of snode public key to deletion confirmation.
|
|
public static func deleteAllMessages(
|
|
beforeMs: UInt64,
|
|
namespace: SnodeAPI.Namespace,
|
|
using dependencies: Dependencies = Dependencies()
|
|
) -> AnyPublisher<[String: Bool], Error> {
|
|
guard let userED25519KeyPair = Identity.fetchUserEd25519KeyPair() else {
|
|
return Fail(error: SnodeAPIError.noKeyPair)
|
|
.eraseToAnyPublisher()
|
|
}
|
|
|
|
let userX25519PublicKey: String = getUserHexEncodedPublicKey()
|
|
|
|
do {
|
|
return try SnodeAPI
|
|
.prepareRequest(
|
|
request: Request(
|
|
endpoint: .deleteAllBefore,
|
|
swarmPublicKey: userX25519PublicKey,
|
|
requiresLatestNetworkTime: true,
|
|
body: DeleteAllBeforeRequest(
|
|
beforeMs: beforeMs,
|
|
namespace: namespace,
|
|
pubkey: userX25519PublicKey,
|
|
timestampMs: UInt64(SnodeAPI.currentOffsetTimestampMs()),
|
|
ed25519PublicKey: userED25519KeyPair.publicKey,
|
|
ed25519SecretKey: userED25519KeyPair.secretKey
|
|
)
|
|
),
|
|
responseType: DeleteAllBeforeResponse.self,
|
|
using: dependencies
|
|
)
|
|
.send(using: dependencies)
|
|
.tryMap { _, response -> [String: Bool] in
|
|
try response.validResultMap(
|
|
sodium: sodium.wrappedValue,
|
|
userX25519PublicKey: userX25519PublicKey,
|
|
validationData: beforeMs
|
|
)
|
|
}
|
|
.eraseToAnyPublisher()
|
|
}
|
|
catch { return Fail(error: error).eraseToAnyPublisher() }
|
|
}
|
|
|
|
// MARK: - Internal API
|
|
|
|
public static func getNetworkTime(
|
|
from snode: LibSession.Snode,
|
|
using dependencies: Dependencies
|
|
) -> AnyPublisher<UInt64, Error> {
|
|
do {
|
|
return try SnodeAPI
|
|
.prepareRequest(
|
|
request: Request(
|
|
endpoint: .getInfo,
|
|
snode: snode,
|
|
body: [String: String]()
|
|
),
|
|
responseType: GetNetworkTimestampResponse.self,
|
|
using: dependencies
|
|
)
|
|
.send(using: dependencies)
|
|
.map { _, response in
|
|
// Assume we've fetched the networkTime in order to send a message to the specified snode, in
|
|
// which case we want to update the 'clockOffsetMs' value for subsequent requests
|
|
let offset = (Int64(response.timestamp) - Int64(floor(dependencies.dateNow.timeIntervalSince1970 * 1000)))
|
|
SnodeAPI.clockOffsetMs.mutate { $0 = offset }
|
|
|
|
return response.timestamp
|
|
}
|
|
.eraseToAnyPublisher()
|
|
}
|
|
catch { return Fail(error: error).eraseToAnyPublisher() }
|
|
}
|
|
|
|
// MARK: - Convenience
|
|
|
|
private static func prepareRequest<T: Encodable, R: Decodable>(
|
|
request: Request<T, Endpoint>,
|
|
responseType: R.Type,
|
|
requireAllBatchResponses: Bool = true,
|
|
retryCount: Int = 0,
|
|
timeout: TimeInterval = Network.defaultTimeout,
|
|
using dependencies: Dependencies
|
|
) throws -> Network.PreparedRequest<R> {
|
|
return Network.PreparedRequest<R>(
|
|
request: request,
|
|
urlRequest: try request.generateUrlRequest(using: dependencies),
|
|
responseType: responseType,
|
|
requireAllBatchResponses: requireAllBatchResponses,
|
|
retryCount: retryCount,
|
|
timeout: timeout
|
|
)
|
|
.handleEvents(
|
|
receiveOutput: { _, response in
|
|
switch response {
|
|
case let snodeResponse as SnodeResponse:
|
|
// Update the network offset based on the response so subsequent requests have
|
|
// the correct network offset time
|
|
let offset = (Int64(snodeResponse.timeOffset) - Int64(floor(dependencies.dateNow.timeIntervalSince1970 * 1000)))
|
|
SnodeAPI.clockOffsetMs.mutate { $0 = offset }
|
|
|
|
// Extract and store hard fork information if returned
|
|
guard snodeResponse.hardFork.count > 1 else { break }
|
|
|
|
if snodeResponse.hardFork[1] > softfork {
|
|
softfork = snodeResponse.hardFork[1]
|
|
UserDefaults.standard[.softfork] = softfork
|
|
}
|
|
|
|
if snodeResponse.hardFork[0] > hardfork {
|
|
hardfork = snodeResponse.hardFork[0]
|
|
UserDefaults.standard[.hardfork] = hardfork
|
|
softfork = snodeResponse.hardFork[1]
|
|
UserDefaults.standard[.softfork] = softfork
|
|
}
|
|
|
|
default: break
|
|
}
|
|
}
|
|
)
|
|
}
|
|
}
|
|
|
|
// MARK: - Publisher Convenience
|
|
|
|
public extension Publisher where Output == Set<LibSession.Snode> {
|
|
func tryFlatMapWithRandomSnode<T, P>(
|
|
maxPublishers: Subscribers.Demand = .unlimited,
|
|
retry retries: Int = 0,
|
|
drainBehaviour: Atomic<SwarmDrainBehaviour> = .alwaysRandom,
|
|
using dependencies: Dependencies,
|
|
_ transform: @escaping (LibSession.Snode) throws -> P
|
|
) -> AnyPublisher<T, Error> where T == P.Output, P: Publisher, P.Failure == Error {
|
|
return self
|
|
.mapError { $0 }
|
|
.flatMap(maxPublishers: maxPublishers) { swarm -> AnyPublisher<T, Error> in
|
|
// If we don't want to reuse a specific snode multiple times then just grab a
|
|
// random one from the swarm every time
|
|
var remainingSnodes: Set<LibSession.Snode> = {
|
|
switch drainBehaviour.wrappedValue {
|
|
case .alwaysRandom: return swarm
|
|
case .limitedReuse(_, let targetSnode, _, let usedSnodes, let swarmHash):
|
|
// If we've used all of the snodes or the swarm has changed then reset the used list
|
|
guard swarmHash == swarm.hashValue && (targetSnode != nil || usedSnodes != swarm) else {
|
|
drainBehaviour.mutate { $0 = $0.reset() }
|
|
return swarm
|
|
}
|
|
|
|
return swarm.subtracting(usedSnodes)
|
|
}
|
|
}()
|
|
var lastError: Error?
|
|
|
|
return Just(())
|
|
.setFailureType(to: Error.self)
|
|
.tryFlatMap(maxPublishers: maxPublishers) { _ -> AnyPublisher<T, Error> in
|
|
let snode: LibSession.Snode = try {
|
|
switch drainBehaviour.wrappedValue {
|
|
case .limitedReuse(_, .some(let targetSnode), _, _, _): return targetSnode
|
|
default: break
|
|
}
|
|
|
|
// Select the next snode
|
|
return try dependencies.popRandomElement(&remainingSnodes) ?? {
|
|
throw SnodeAPIError.ranOutOfRandomSnodes(lastError)
|
|
}()
|
|
}()
|
|
drainBehaviour.mutate { $0 = $0.use(snode: snode, from: swarm) }
|
|
|
|
return try transform(snode)
|
|
.eraseToAnyPublisher()
|
|
}
|
|
.mapError { error in
|
|
// Prevent nesting the 'ranOutOfRandomSnodes' errors
|
|
switch error {
|
|
case SnodeAPIError.ranOutOfRandomSnodes: break
|
|
default: lastError = error
|
|
}
|
|
|
|
return error
|
|
}
|
|
.retry(retries)
|
|
.eraseToAnyPublisher()
|
|
}
|
|
.eraseToAnyPublisher()
|
|
}
|
|
}
|
|
|
|
// MARK: - Request<T, EndpointType> Convenience
|
|
|
|
private extension Request {
|
|
init<B: Encodable>(
|
|
endpoint: SnodeAPI.Endpoint,
|
|
swarmPublicKey: String,
|
|
body: B,
|
|
retryCount: Int = SnodeAPI.maxRetryCount
|
|
) where T == SnodeRequest<B>, Endpoint == SnodeAPI.Endpoint {
|
|
self = Request(
|
|
method: .post,
|
|
endpoint: endpoint,
|
|
swarmPublicKey: swarmPublicKey,
|
|
body: SnodeRequest<B>(
|
|
endpoint: endpoint,
|
|
body: body
|
|
),
|
|
retryCount: retryCount
|
|
)
|
|
}
|
|
|
|
init<B: Encodable>(
|
|
endpoint: SnodeAPI.Endpoint,
|
|
snode: LibSession.Snode,
|
|
swarmPublicKey: String? = nil,
|
|
body: B,
|
|
retryCount: Int = SnodeAPI.maxRetryCount
|
|
) where T == SnodeRequest<B>, Endpoint == SnodeAPI.Endpoint {
|
|
self = Request(
|
|
method: .post,
|
|
endpoint: endpoint,
|
|
snode: snode,
|
|
body: SnodeRequest<B>(
|
|
endpoint: endpoint,
|
|
body: body
|
|
),
|
|
swarmPublicKey: swarmPublicKey,
|
|
retryCount: retryCount
|
|
)
|
|
}
|
|
|
|
init<B>(
|
|
endpoint: SnodeAPI.Endpoint,
|
|
swarmPublicKey: String,
|
|
requiresLatestNetworkTime: Bool,
|
|
body: B,
|
|
retryCount: Int = SnodeAPI.maxRetryCount
|
|
) where T == SnodeRequest<B>, Endpoint == SnodeAPI.Endpoint, B: Encodable & UpdatableTimestamp {
|
|
self = Request(
|
|
method: .post,
|
|
endpoint: endpoint,
|
|
swarmPublicKey: swarmPublicKey,
|
|
requiresLatestNetworkTime: requiresLatestNetworkTime,
|
|
body: SnodeRequest<B>(
|
|
endpoint: endpoint,
|
|
body: body
|
|
),
|
|
retryCount: retryCount
|
|
)
|
|
}
|
|
}
|