39 lines
1.8 KiB
Swift
39 lines
1.8 KiB
Swift
import Foundation
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enum Constants: Sendable {
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nonisolated static let version = "0.8.5"
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nonisolated static let maxMessageBytes = 65536
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nonisolated static let maxImageBytes = 5 * 1024 * 1024 // 5 MB
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nonisolated static let maxFileBytes = 50 * 1024 * 1024 // 50 MB
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nonisolated static let imageChunkSize = 32768 // 32 KB (matches Python IMAGE_CHUNK_SIZE)
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nonisolated static let selfDeviceId = "00000000-0000-0000-0000-000000000000"
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nonisolated static let opkReplenishThreshold = 20
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nonisolated static let opkBatchSize = 50
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nonisolated static let spkRotationDays = 7
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nonisolated static let maxSkip = 256
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nonisolated static let maxSenderKeySkip = 256
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nonisolated static let deviceBundleCacheTTL: TimeInterval = 300 // 5 minutes
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nonisolated static let sendReceiveTimeout: TimeInterval = 30
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nonisolated static let reconnectBaseDelay: TimeInterval = 1
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nonisolated static let reconnectMaxDelay: TimeInterval = 30
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nonisolated static let pbkdf2Iterations: UInt32 = 600_000
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nonisolated static let ecp1Magic = Data([0x45, 0x43, 0x50, 0x31]) // "ECP1"
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// HKDF info/salt strings matching Python
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nonisolated static let x3dhInfo = "EncryptedChat_X3DH"
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nonisolated static let rootKeyInfo = "EncryptedChat_RootKey"
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nonisolated static let selfEncryptionSalt = "self_encryption"
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nonisolated static let selfEncryptionInfo = "EncryptedChat_SelfKey"
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nonisolated static let localStorageSalt = "local_storage"
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nonisolated static let localStorageInfo = "EncryptedChat_LocalStorage"
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nonisolated static let senderKeyChainInfo = "SenderKeyChain"
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// Server connection defaults
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nonisolated static let defaultHost = "chat.ai-tech.news"
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nonisolated static let defaultPort: UInt16 = 9999
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}
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