keychain/ckks/CKKSFetchAllRecordZoneChangesOperation.h

   1 /*
   2  * Copyright (c) 2016 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #import <Foundation/Foundation.h>
  25
  26 #if OCTAGON
  27 @class CKKSKeychainView;
  28 #import "keychain/ckks/CKKSGroupOperation.h"
  29 #import "keychain/ckks/CloudKitDependencies.h"
  30
  31 NS_ASSUME_NONNULL_BEGIN
  32
  33 /* Fetch Reasons */
  34 @protocol CKKSFetchBecauseProtocol <NSObject>
  35 @end
  36 typedef NSString<CKKSFetchBecauseProtocol> CKKSFetchBecause;
  37 extern CKKSFetchBecause* const CKKSFetchBecauseAPNS;
  38 extern CKKSFetchBecause* const CKKSFetchBecauseAPIFetchRequest;
  39 extern CKKSFetchBecause* const CKKSFetchBecauseCurrentItemFetchRequest;
  40 extern CKKSFetchBecause* const CKKSFetchBecauseInitialStart;
  41 extern CKKSFetchBecause* const CKKSFetchBecauseSecuritydRestart;
  42 extern CKKSFetchBecause* const CKKSFetchBecausePreviousFetchFailed;
  43 extern CKKSFetchBecause* const CKKSFetchBecauseKeyHierarchy;
  44 extern CKKSFetchBecause* const CKKSFetchBecauseTesting;
  45 extern CKKSFetchBecause* const CKKSFetchBecauseResync;
  46
  47 /* Clients that register to use fetches */
  48 @interface CKKSCloudKitFetchRequest : NSObject
  49 @property bool participateInFetch;
  50
  51 // If true, you will receive YES in the resync parameter to your callback.
  52 // You may also receive YES to your callback if a resync has been triggered for you.
  53 // It does nothing else. Use as you see fit.
  54 // Note: you will receive exactly one callback with moreComing=0 and resync=1 for each
  55 // resync fetch. You may then receive further callbacks with resync=0 during the same fetch,
  56 // if other clients keep needing fetches.
  57 @property BOOL resync;
  58
  59 @property (nullable) CKServerChangeToken* changeToken;
  60 @end
  61
  62 @class CKKSCloudKitDeletion;
  63
  64 @protocol CKKSChangeFetcherClient <NSObject>
  65 - (CKRecordZoneID*)zoneID;
  66 - (BOOL)zoneIsReadyForFetching;
  67 - (CKKSCloudKitFetchRequest*)participateInFetch;
  68
  69 // Return false if this is a 'fatal' error and you don't want another fetch to be tried
  70 - (bool)shouldRetryAfterFetchError:(NSError*)error;
  71
  72 - (void)changesFetched:(NSArray<CKRecord*>*)changedRecords
  73       deletedRecordIDs:(NSArray<CKKSCloudKitDeletion*>*)deleted
  74         newChangeToken:(CKServerChangeToken*)changeToken
  75             moreComing:(BOOL)moreComing
  76                 resync:(BOOL)resync;
  77 @end
  78
  79 // I don't understand why recordType isn't part of record ID, but deletions come in as both things
  80 @interface CKKSCloudKitDeletion : NSObject
  81 @property CKRecordID* recordID;
  82 @property NSString* recordType;
  83 - (instancetype)initWithRecordID:(CKRecordID*)recordID recordType:(NSString*)recordType;
  84 @end
  85
  86
  87 @interface CKKSFetchAllRecordZoneChangesOperation : CKKSGroupOperation
  88 @property (readonly) Class<CKKSFetchRecordZoneChangesOperation> fetchRecordZoneChangesOperationClass;
  89 @property (readonly) CKContainer* container;
  90
  91 // Set this to true before starting this operation if you'd like resync behavior:
  92 //  Fetching everything currently in CloudKit and comparing to local copy
  93 @property bool resync;
  94
  95 @property (nullable) NSMutableArray<CKRecordZoneID*>* fetchedZoneIDs;
  96
  97 @property NSSet<CKKSFetchBecause*>* fetchReasons;
  98 @property NSSet<CKRecordZoneNotification*>* apnsPushes;
  99
 100 @property NSMutableDictionary<CKRecordID*, CKRecord*>* modifications;
 101 @property NSMutableDictionary<CKRecordID*, CKKSCloudKitDeletion*>* deletions;
 102 @property NSMutableDictionary<CKRecordZoneID*, CKServerChangeToken*>* changeTokens;
 103
 104 - (instancetype)init NS_UNAVAILABLE;
 105 - (instancetype)initWithContainer:(CKContainer*)container
 106                        fetchClass:(Class<CKKSFetchRecordZoneChangesOperation>)fetchRecordZoneChangesOperationClass
 107                           clients:(NSArray<id<CKKSChangeFetcherClient>>*)clients
 108                      fetchReasons:(NSSet<CKKSFetchBecause*>*)fetchReasons
 109                        apnsPushes:(NSSet<CKRecordZoneNotification*>* _Nullable)apnsPushes
 110                       forceResync:(bool)forceResync
 111                  ckoperationGroup:(CKOperationGroup*)ckoperationGroup;
 112
 113 @end
 114
 115 NS_ASSUME_NONNULL_END
 116
 117 #endif