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 -(bool) ckksIsCKErrorRecordChangedError {
  41     NSDictionary<CKRecordID*,NSError*>* partialErrors = self.userInfo[CKPartialErrorsByItemIDKey];
  42     if([self.domain isEqualToString:CKErrorDomain] && self.code == CKErrorPartialFailure && partialErrors) {
  43         // Check if this error was "you're out of date"
  44
  45         for(NSError* error in partialErrors.objectEnumerator) {
  46             if((![error.domain isEqualToString:CKErrorDomain]) || (error.code != CKErrorBatchRequestFailed && error.code != CKErrorServerRecordChanged && error.code != CKErrorUnknownItem)) {
  47                 // There's an error in there that isn't CKErrorServerRecordChanged, CKErrorBatchRequestFailed, or CKErrorUnknownItem. Don't handle nicely...
  48                 return false;
  49             }
  50         }
  51
  52         return true;
  53     }
  54     return false;
  55 }
  56
  57 - (BOOL)isCuttlefishError:(CuttlefishErrorCode)cuttlefishErrorCode
  58 {
  59     NSError *error = self;
  60
  61     if ([error.domain isEqualToString:CKErrorDomain] && error.code == CKErrorServerRejectedRequest) {
  62         NSError* underlyingError = error.userInfo[NSUnderlyingErrorKey];
  63
  64         if([underlyingError.domain isEqualToString:CKInternalErrorDomain] && underlyingError.code == CKErrorInternalPluginError) {
  65             NSError* cuttlefishError = underlyingError.userInfo[NSUnderlyingErrorKey];
  66
  67             if([cuttlefishError.domain isEqualToString:CuttlefishErrorDomain] && cuttlefishError.code == cuttlefishErrorCode) {
  68                 return YES;
  69             }
  70         }
  71     }
  72     return NO;
  73 }
  74
  75 - (NSTimeInterval)cuttlefishRetryAfter {
  76     NSError *error = self;
  77
  78     if ([error.domain isEqualToString:CKErrorDomain] && error.code == CKErrorServerRejectedRequest) {
  79         NSError* underlyingError = error.userInfo[NSUnderlyingErrorKey];
  80
  81         if([underlyingError.domain isEqualToString:CKInternalErrorDomain] && underlyingError.code == CKErrorInternalPluginError) {
  82             NSError* cuttlefishError = underlyingError.userInfo[NSUnderlyingErrorKey];
  83
  84             if([cuttlefishError.domain isEqualToString:CuttlefishErrorDomain]) {
  85                 NSNumber* val = cuttlefishError.userInfo[CuttlefishErrorRetryAfterKey];
  86                 if (val != nil) {
  87                     return (NSTimeInterval)val.doubleValue;
  88                 }
  89             }
  90         }
  91     }
  92     return 0;
  93 }
  94
  95
  96 - (BOOL)isCKKSServerPluginError:(NSInteger)code
  97 {
  98     NSError* underlyingError = self.userInfo[NSUnderlyingErrorKey];
  99     NSError* thirdLevelError = underlyingError.userInfo[NSUnderlyingErrorKey];
 100
 101     return ([self.domain isEqualToString:CKErrorDomain] &&
 102             self.code == CKErrorServerRejectedRequest &&
 103             underlyingError &&
 104             [underlyingError.domain isEqualToString:CKInternalErrorDomain] &&
 105             underlyingError.code == CKErrorInternalPluginError &&
 106             thirdLevelError &&
 107             [thirdLevelError.domain isEqualToString:@"CloudkitKeychainService"] &&
 108             thirdLevelError.code == code);
 109 }
 110
 111 @end
 112
 113 @implementation CKAccountInfo (CKKS)
 114 // Ugly, and might break if CloudKit changes how they print objects. Sorry, CloudKit!
 115 - (NSString*)description {
 116     NSString* ckprop = [self CKPropertiesDescription];
 117     NSString* description =  [NSString stringWithFormat: @"<CKAccountInfo: %@>", ckprop];
 118     return description;
 119 }
 120 @end
 121
 122 #endif //OCTAGON