91 lines
2.4 KiB
Swift
91 lines
2.4 KiB
Swift
//
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// Copyright 2019 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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import Foundation
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import GRDB
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func convertDateForGrdb(_ value: Date) -> Double {
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return value.timeIntervalSince1970
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}
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// MARK: - SDSSerializer
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public protocol SDSSerializer {
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func asRecord() -> SDSRecord
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}
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// MARK: - SDSSerializer Helpers
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public extension SDSSerializer {
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// MARK: - Numeric Primitive
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func archiveOptionalNSNumber<T>(_ value: NSNumber?, conversion: (NSNumber) -> T) -> T? {
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guard let value else {
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return nil
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}
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return conversion(value)
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}
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func archiveNSNumber<T>(_ value: NSNumber, conversion: (NSNumber) -> T) -> T {
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return conversion(value)
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}
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// MARK: - Date
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func archiveOptionalDate(_ value: Date?) -> Double? {
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guard let value else {
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return nil
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}
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return archiveDate(value)
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}
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func archiveDate(_ value: Date) -> Double {
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return convertDateForGrdb(value)
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}
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// MARK: - Blob
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func optionalArchive<T: NSObject & NSSecureCoding>(_ value: T?) -> Data? {
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guard let value else {
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return nil
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}
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return requiredArchive(value)
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}
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func optionalArchive(_ value: [SignalServiceAddress: TSOutgoingMessageRecipientState]?) -> Data? {
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return optionalArchive(value as NSDictionary?)
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}
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func optionalArchive(_ value: [InfoMessageUserInfoKey: Any]?) -> Data? {
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return optionalArchive(value as NSDictionary?)
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}
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/// Avoid the cost of actually archiving empty string arrays that are
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/// declared optional (e.g. TSInteraction.attachmentIds)
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func optionalArchive(_ value: [String]?) -> Data? {
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guard let value, !value.isEmpty else {
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return nil
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}
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return requiredArchive(value as [NSString] as NSArray)
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}
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/// Avoide the cost of actually archiving empty message body range objects.
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func optionalArchive(_ value: MessageBodyRanges?) -> Data? {
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guard let value, value.hasRanges else {
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return nil
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}
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return requiredArchive(value)
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}
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func requiredArchive<T: NSObject & NSSecureCoding>(_ value: [T]) -> Data {
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return requiredArchive(value as NSArray)
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}
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func requiredArchive<T: NSObject & NSSecureCoding>(_ value: T) -> Data {
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return try! NSKeyedArchiver.archivedData(withRootObject: value, requiringSecureCoding: true)
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}
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}
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