keychain/ckks/CloudKitCategories.m

   1 /*
   2  * Copyright (c) 2017 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 #if OCTAGON
  25
  26 #import "keychain/ckks/CloudKitCategories.h"
  27
  28 @implementation CKOperationGroup (CKKS)
  29 +(instancetype) CKKSGroupWithName:(NSString*)name {
  30     CKOperationGroup* operationGroup = [[CKOperationGroup alloc] init];
  31     operationGroup.expectedSendSize = CKOperationGroupTransferSizeKilobytes;
  32     operationGroup.expectedReceiveSize = CKOperationGroupTransferSizeKilobytes;
  33     operationGroup.name = name;
  34     return operationGroup;
  35 }
  36 @end
  37
  38 @implementation NSError (CKKS)
  39
  40 + (instancetype)errorWithDomain:(NSErrorDomain)domain code:(NSInteger)code description:(NSString*)description {
  41     return [NSError errorWithDomain:domain code:code description:description underlying:nil];
  42 }
  43
  44 + (instancetype)errorWithDomain:(NSErrorDomain)domain code:(NSInteger)code description:(NSString*)description underlying:(NSError*)underlying {
  45     // Obj-C throws a fit if there's nulls in dictionaries, so we can't use a dictionary literal here.
  46     // Use the null-assignment semantics of NSMutableDictionary to make a dictionary either with either, both, or neither key.
  47     NSMutableDictionary* mut = [[NSMutableDictionary alloc] init];
  48     mut[NSLocalizedDescriptionKey] = description;
  49     mut[NSUnderlyingErrorKey] = underlying;
  50
  51     return [NSError errorWithDomain:domain code:code userInfo:mut];
  52 }
  53
  54 -(bool) ckksIsCKErrorRecordChangedError {
  55     NSDictionary<CKRecordID*,NSError*>* partialErrors = self.userInfo[CKPartialErrorsByItemIDKey];
  56     if([self.domain isEqualToString:CKErrorDomain] && self.code == CKErrorPartialFailure && partialErrors) {
  57         // Check if this error was "you're out of date"
  58
  59         for(NSError* error in partialErrors.objectEnumerator) {
  60             if((![error.domain isEqualToString:CKErrorDomain]) || (error.code != CKErrorBatchRequestFailed && error.code != CKErrorServerRecordChanged && error.code != CKErrorUnknownItem)) {
  61                 // There's an error in there that isn't CKErrorServerRecordChanged, CKErrorBatchRequestFailed, or CKErrorUnknownItem. Don't handle nicely...
  62                 return false;
  63             }
  64         }
  65
  66         return true;
  67     }
  68     return false;
  69 }
  70
  71 @end
  72
  73 @implementation CKAccountInfo (CKKS)
  74 // Ugly, and might break if CloudKit changes how they print objects. Sorry, CloudKit!
  75 - (NSString*)description {
  76     NSString* ckprop = [self CKPropertiesDescription];
  77     NSString* description =  [NSString stringWithFormat: @"<CKAccountInfo: %@>", ckprop];
  78     return description;
  79 }
  80 @end
  81
  82 #endif //OCTAGON