Security/Keychain Circle Notification/KNPersistantState.m

   1 /*
   2  * Copyright (c) 2013-2014 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
  25 #import "KNPersistantState.h"
  26
  27 @implementation KNPersistantState
  28
  29 -(NSURL*)urlForStorage
  30 {
  31         return [NSURL URLWithString:@"Preferences/com.apple.security.KCN.plist" relativeToURL:[[NSFileManager defaultManager] URLForDirectory:NSLibraryDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:YES error:nil]];
  32 }
  33
  34 +(instancetype)loadFromStorage
  35 {
  36         KNPersistantState *state = [[KNPersistantState alloc] init];
  37     if (!state) {
  38         return state;
  39     }
  40
  41     id plist = @{@"lastWritten": [NSDate distantPast]};
  42
  43     NSError *error = nil;
  44     NSData *stateData = [NSData dataWithContentsOfURL:[state urlForStorage] options:0 error:&error];
  45     if (!stateData) {
  46         NSLog(@"Can't read state data (p=%@, err=%@)", [state urlForStorage], error);
  47     } else {
  48         NSPropertyListFormat format;
  49         plist = [NSPropertyListSerialization propertyListWithData:stateData options: NSPropertyListMutableContainersAndLeaves format:&format error:&error];
  50
  51         if (plist == nil) {
  52             NSLog(@"Can't deserialize %@, e=%@", stateData, error);
  53         }
  54     }
  55
  56     state.lastCircleStatus = plist[@"lastCircleStatus"] ? [plist[@"lastCircleStatus"] intValue] : kSOSCCCircleAbsent;
  57     state.lastWritten = plist[@"lastWritten"];
  58         state.pendingApplicationReminderInterval = plist[@"pendingApplicationReminderInterval"];
  59         state.debugLeftReason = plist[@"debugLeftReason"];
  60         state.pendingApplicationReminder = plist[@"pendingApplicationReminder"];
  61         state.applcationDate = plist[@"applcationDate"];
  62         if (!state.applcationDate) {
  63                 state.applcationDate = [NSDate distantPast];
  64         }
  65         if (!state.pendingApplicationReminder) {
  66                 state.pendingApplicationReminder = [NSDate distantFuture];
  67         }
  68     if (!state.pendingApplicationReminderInterval || [state.pendingApplicationReminderInterval doubleValue] <= 0) {
  69         state.pendingApplicationReminderInterval = [NSNumber numberWithUnsignedInt:60 * 60 * 24 * 2];
  70     }
  71
  72     return state;
  73 }
  74
  75 -(void)writeToStorage
  76 {
  77     NSMutableDictionary *plist = [@{@"lastCircleStatus": [NSNumber numberWithInt:self.lastCircleStatus],
  78                                                                         @"lastWritten": [NSDate date],
  79                                                                         @"applcationDate": self.applcationDate,
  80                                                                         @"pendingApplicationReminder": self.pendingApplicationReminder,
  81                             } mutableCopy];
  82         if (self.debugLeftReason) {
  83                 plist[@"debugLeftReason"] = self.debugLeftReason;
  84         }
  85         if (self.pendingApplicationReminderInterval) {
  86                 plist[@"pendingApplicationReminderInterval"] = self.pendingApplicationReminderInterval;
  87         }
  88     NSLog(@"writeToStorage plist=%@", plist);
  89
  90     NSError *error = nil;
  91     NSData *stateData = [NSPropertyListSerialization dataWithPropertyList:[plist copy] format:NSPropertyListXMLFormat_v1_0 options:kCFPropertyListImmutable error:&error];
  92     if (!stateData) {
  93         NSLog(@"Can't serialize %@: %@", plist, error);
  94         return;
  95     }
  96     if (![stateData writeToURL:[self urlForStorage] options:NSDataWritingAtomic error:&error]) {
  97         NSLog(@"Can't write to %@, error=%@", [self urlForStorage], error);
  98     }
  99 }
 100
 101
 102 @end