keychain/Signin Metrics/SFTransactionMetric.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 __OBJC2__
  25
  26 #import "SFTransactionMetric.h"
  27 #import <os/log_private.h>
  28
  29 @interface SFTransactionMetric ()
  30 @property (nonatomic, copy) NSString *uuid;
  31 @property (nonatomic, copy) NSString *category;
  32 @property (nonatomic, strong) os_log_t logObject;
  33
  34 -(os_log_t) sftmCreateLogCategory:(NSString*) category;
  35 -(os_log_t) sftmObjectForCategory:(NSString*) category;
  36 @end
  37
  38 static NSMutableDictionary *logObjects;
  39 static const NSString* signInLogSpace = @"com.apple.security.wiiss";
  40
  41 @implementation SFTransactionMetric
  42
  43 + (BOOL)supportsSecureCoding {
  44     return YES;
  45 }
  46
  47 -(os_log_t) sftmObjectForCategory:(NSString*) category
  48 {
  49     return logObjects[category];
  50 }
  51
  52 -(os_log_t) sftmCreateLogCategory:(NSString*) category
  53 {
  54     return os_log_create([signInLogSpace UTF8String], [category UTF8String]);
  55 }
  56
  57 - (instancetype)initWithUUID:(NSString *)uuid category:(NSString *)category
  58 {
  59     self = [super init];
  60     if (self) {
  61         _uuid = uuid;
  62         _category = category;
  63
  64         static dispatch_once_t onceToken;
  65         dispatch_once(&onceToken, ^{
  66             logObjects = [NSMutableDictionary dictionary];
  67         });
  68         @synchronized(logObjects){
  69             if(category){
  70                 _logObject = [self sftmObjectForCategory:category];
  71
  72                 if(!_logObject){
  73                     _logObject = [self sftmCreateLogCategory:category];
  74                     [logObjects setObject:_logObject forKey:category];
  75                 }
  76             }
  77         }
  78     }
  79     return self;
  80 }
  81
  82 - (void)encodeWithCoder:(NSCoder *)coder {
  83     [coder encodeObject:_uuid forKey:@"UUID"];
  84     [coder encodeObject:_category forKey:@"category"];
  85 }
  86
  87 - (nullable instancetype)initWithCoder:(NSCoder *)decoder
  88 {
  89     self = [super init];
  90     if (self) {
  91         _uuid = [decoder decodeObjectOfClass:[NSString class] forKey:@"UUID"];
  92         _category = [decoder decodeObjectOfClass:[NSString class] forKey:@"category"];
  93     }
  94     return self;
  95 }
  96
  97 - (void)logEvent:(NSString*)eventName eventAttributes:(NSDictionary<NSString*, id>*)attributes
  98 {
  99     [attributes enumerateKeysAndObjectsUsingBlock:^(NSString* key, id obj, BOOL * stop) {
 100         os_log(self.logObject, "event: %@, %@  :  %@", eventName, key, obj);
 101     }];
 102 }
 103
 104 - (void)timeEvent:(NSString*)eventName blockToTime:(void(^)(void))blockToTime
 105 {
 106     NSDate *firstTime = [NSDate date];
 107
 108     blockToTime();
 109
 110     NSDate *SecondTime = [NSDate date];
 111
 112     os_log(self.logObject, "event: %@, Time elapsed: %@", eventName, [[NSString alloc] initWithFormat:@"%f", [SecondTime timeIntervalSinceDate:firstTime]]);
 113 }
 114
 115 - (void)logError:(NSError*)error
 116 {
 117     os_log_error(self.logObject, "%@", error);
 118 }
 119
 120 - (void)signInCompleted
 121 {
 122     //print final
 123     os_log(self.logObject, "sign in complete for %@", self.uuid);
 124 }
 125
 126 @end
 127 #endif