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79 lines
2.9 KiB
Swift
79 lines
2.9 KiB
Swift
// Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.
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import Foundation
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import GRDB
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/// Abstract base class for `VisibleMessage` and `ControlMessage`.
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public class Message: Codable {
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public var id: String?
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public var threadId: String?
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public var sentTimestamp: UInt64?
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public var receivedTimestamp: UInt64?
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public var recipient: String?
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public var sender: String?
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public var groupPublicKey: String?
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public var openGroupServerMessageId: UInt64?
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public var openGroupServerTimestamp: UInt64?
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public var serverHash: String?
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public var ttl: UInt64 { 14 * 24 * 60 * 60 * 1000 }
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public var isSelfSendValid: Bool { false }
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// MARK: - Validation
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public var isValid: Bool {
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if let sentTimestamp = sentTimestamp { guard sentTimestamp > 0 else { return false } }
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if let receivedTimestamp = receivedTimestamp { guard receivedTimestamp > 0 else { return false } }
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return sender != nil && recipient != nil
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}
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// MARK: - Initialization
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public init(
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id: String? = nil,
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threadId: String? = nil,
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sentTimestamp: UInt64? = nil,
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receivedTimestamp: UInt64? = nil,
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recipient: String? = nil,
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sender: String? = nil,
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groupPublicKey: String? = nil,
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openGroupServerMessageId: UInt64? = nil,
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openGroupServerTimestamp: UInt64? = nil,
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serverHash: String? = nil
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) {
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self.id = id
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self.threadId = threadId
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self.sentTimestamp = sentTimestamp
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self.receivedTimestamp = receivedTimestamp
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self.recipient = recipient
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self.sender = sender
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self.groupPublicKey = groupPublicKey
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self.openGroupServerMessageId = openGroupServerMessageId
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self.openGroupServerTimestamp = openGroupServerTimestamp
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self.serverHash = serverHash
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}
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// MARK: - Proto Conversion
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public class func fromProto(_ proto: SNProtoContent, sender: String) -> Self? {
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preconditionFailure("fromProto(_:sender:) is abstract and must be overridden.")
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}
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public func toProto(_ db: Database) -> SNProtoContent? {
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preconditionFailure("toProto(_:) is abstract and must be overridden.")
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}
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public func setGroupContextIfNeeded(_ db: Database, on dataMessage: SNProtoDataMessage.SNProtoDataMessageBuilder) throws {
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guard
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let threadId: String = threadId,
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let thread: SessionThread = try? SessionThread.fetchOne(db, id: threadId),
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thread.variant == .closedGroup,
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let legacyGroupId: Data = "\(Legacy.closedGroupIdPrefix)\(threadId)".data(using: .utf8)
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else { return }
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// Android needs a group context or it'll interpret the message as a one-to-one message
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let groupProto = SNProtoGroupContext.builder(id: legacyGroupId, type: .deliver)
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dataMessage.setGroup(try groupProto.build())
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}
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}
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