keychain/ckks/CKKSZoneStateEntry.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 "CKKSSQLDatabaseObject.h"
  25 #include <utilities/SecDb.h>
  26 #include <securityd/SecDbItem.h>
  27
  28 #ifndef CKKSZoneStateEntry_h
  29 #define CKKSZoneStateEntry_h
  30
  31 #if OCTAGON
  32
  33 #import <CloudKit/CloudKit.h>
  34
  35 /*
  36  * This class hold the state for a particular zone: has the zone been created, have we subscribed to it,
  37  * what's the current change token, etc.
  38  *
  39  * It also holds the zone's current "rate limiter" state. Currently, though, there is only a single, global
  40  * rate limiter. Therefore, each individual zone's state will have no data in the rate limiter slot, and we'll
  41  * create a global zone state entry holding the global rate limiter state. This split behavior allows us to bring
  42  * up zone-specific rate limiters under the global rate limiter later without database changes, if we decide
  43  * that's useful.
  44  */
  45
  46 @class CKKSRateLimiter;
  47
  48 @interface CKKSZoneStateEntry : CKKSSQLDatabaseObject {
  49
  50 }
  51
  52 @property NSString* ckzone;
  53 @property bool ckzonecreated;
  54 @property bool ckzonesubscribed;
  55 @property (getter=getChangeToken,setter=setChangeToken:) CKServerChangeToken* changeToken;
  56 @property NSData* encodedChangeToken;
  57 @property NSDate* lastFetchTime;
  58
  59 @property CKKSRateLimiter* rateLimiter;
  60 @property NSData* encodedRateLimiter;
  61
  62 + (instancetype) state: (NSString*) ckzone;
  63
  64 + (instancetype) fromDatabase: (NSString*) ckzone error: (NSError * __autoreleasing *) error;
  65 + (instancetype) tryFromDatabase: (NSString*) ckzone error: (NSError * __autoreleasing *) error;
  66
  67 - (instancetype) initWithCKZone: (NSString*) ckzone zoneCreated: (bool) ckzonecreated zoneSubscribed: (bool) ckzonesubscribed changeToken: (NSData*) changetoken lastFetch: (NSDate*) lastFetch encodedRateLimiter: (NSData*) encodedRateLimiter;
  68
  69 - (CKServerChangeToken*) getChangeToken;
  70 - (void) setChangeToken: (CKServerChangeToken*) token;
  71
  72 - (BOOL)isEqual: (id) object;
  73 @end
  74
  75 #endif
  76 #endif /* CKKSZoneStateEntry_h */