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Pods/FirebaseInstanceID/Firebase/InstanceID/FIRInstanceIDCheckinPreferences+Internal.m

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+/*
+ * Copyright 2019 Google
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#import "FIRInstanceIDCheckinPreferences+Internal.h"
+
+#import "FIRInstanceIDCheckinService.h"
+#import "FIRInstanceIDUtilities.h"
+
+static NSString *const kCheckinKeychainContentSeparatorString = @"|";
+
+@interface FIRInstanceIDCheckinPreferences ()
+
+@property(nonatomic, readwrite, copy) NSString *deviceID;
+@property(nonatomic, readwrite, copy) NSString *secretToken;
+@property(nonatomic, readwrite, copy) NSString *digest;
+@property(nonatomic, readwrite, copy) NSString *versionInfo;
+@property(nonatomic, readwrite, copy) NSString *deviceDataVersion;
+
+@property(nonatomic, readwrite, strong) NSMutableDictionary *gServicesData;
+@property(nonatomic, readwrite, assign) int64_t lastCheckinTimestampMillis;
+
+@end
+
+@implementation FIRInstanceIDCheckinPreferences (Internal)
+
++ (FIRInstanceIDCheckinPreferences *)preferencesFromKeychainContents:(NSString *)keychainContent {
+  NSString *deviceID = [self checkinDeviceIDFromKeychainContent:keychainContent];
+  NSString *secret = [self checkinSecretFromKeychainContent:keychainContent];
+  if ([deviceID length] && [secret length]) {
+    return [[FIRInstanceIDCheckinPreferences alloc] initWithDeviceID:deviceID secretToken:secret];
+  } else {
+    return nil;
+  }
+}
+
+- (instancetype)initWithDeviceID:(NSString *)deviceID secretToken:(NSString *)secretToken {
+  self = [super init];
+  if (self) {
+    self.deviceID = [deviceID copy];
+    self.secretToken = [secretToken copy];
+  }
+  return self;
+}
+
+- (void)reset {
+  self.deviceID = nil;
+  self.secretToken = nil;
+  self.digest = nil;
+  self.versionInfo = nil;
+  self.gServicesData = nil;
+  self.deviceDataVersion = nil;
+  self.lastCheckinTimestampMillis = 0;
+}
+
+- (void)updateWithCheckinPlistContents:(NSDictionary *)checkinPlistContent {
+  for (NSString *key in checkinPlistContent) {
+    if ([kFIRInstanceIDDigestStringKey isEqualToString:key]) {
+      self.digest = [checkinPlistContent[key] copy];
+    } else if ([kFIRInstanceIDVersionInfoStringKey isEqualToString:key]) {
+      self.versionInfo = [checkinPlistContent[key] copy];
+    } else if ([kFIRInstanceIDLastCheckinTimeKey isEqualToString:key]) {
+      self.lastCheckinTimestampMillis = [checkinPlistContent[key] longLongValue];
+    } else if ([kFIRInstanceIDGServicesDictionaryKey isEqualToString:key]) {
+      self.gServicesData = [checkinPlistContent[key] mutableCopy];
+    } else if ([kFIRInstanceIDDeviceDataVersionKey isEqualToString:key]) {
+      self.deviceDataVersion = [checkinPlistContent[key] copy];
+    }
+    // Otherwise we have some keys we don't care about
+  }
+}
+
+- (NSString *)checkinKeychainContent {
+  if ([self.deviceID length] && [self.secretToken length]) {
+    return [NSString stringWithFormat:@"%@%@%@", self.deviceID,
+                                      kCheckinKeychainContentSeparatorString, self.secretToken];
+  } else {
+    return nil;
+  }
+}
+
++ (NSString *)checkinDeviceIDFromKeychainContent:(NSString *)keychainContent {
+  return [self checkinKeychainContent:keychainContent forIndex:0];
+}
+
++ (NSString *)checkinSecretFromKeychainContent:(NSString *)keychainContent {
+  return [self checkinKeychainContent:keychainContent forIndex:1];
+}
+
++ (NSString *)checkinKeychainContent:(NSString *)keychainContent forIndex:(int)index {
+  NSArray *keychainComponents =
+      [keychainContent componentsSeparatedByString:kCheckinKeychainContentSeparatorString];
+  if (index >= 0 && index < 2 && [keychainComponents count] == 2) {
+    return keychainComponents[index];
+  } else {
+    return nil;
+  }
+}
+
+@end