Repo created

iphone/Maps/Classes/FirstSession.mm

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+/*******************************************************************************
+ The MIT License (MIT)
+
+ Copyright (c) 2021 Alexander Borsuk <me@alex.bio> from Minsk, Belarus
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in all
+ copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ SOFTWARE.
+ *******************************************************************************/
+
+#if ! __has_feature(objc_arc)
+#error This file must be compiled with ARC. Either turn on ARC for the project or use -fobjc-arc flag
+#endif
+
+#import "FirstSession.h"
+
+#include <utility> // std::pair
+#include <sys/xattr.h>
+
+#import <CoreFoundation/CoreFoundation.h>
+#import <CoreFoundation/CFURL.h>
+#import <Foundation/NSURL.h>
+#if (TARGET_OS_IPHONE > 0)  // Works for all iOS devices, including iPad.
+#import <UIKit/UIDevice.h>
+#import <UIKit/UIScreen.h>
+#import <UIKit/UIApplication.h>
+#import <UIKit/UIWebView.h>
+#endif  // TARGET_OS_IPHONE
+
+#import <sys/socket.h>
+#import <netinet/in.h>
+#import <SystemConfiguration/SystemConfiguration.h>
+
+namespace {
+// Key for app unique installation id in standardUserDefaults.
+NSString * const kAlohalyticsInstallationId = @"AlohalyticsInstallationId";
+} // namespace
+
+// Keys for NSUserDefaults.
+static NSString * const kInstalledVersionKey = @"AlohalyticsInstalledVersion";
+static NSString * const kFirstLaunchDateKey = @"AlohalyticsFirstLaunchDate";
+static NSString * const kTotalSecondsInTheApp = @"AlohalyticsTotalSecondsInTheApp";
+static NSString * const kIsAlohalyticsDisabledKey = @"AlohalyticsDisabledKey";
+
+// Used to calculate session length and total time spent in the app.
+// setup should be called to activate counting.
+static NSDate * gSessionStartTime = nil;
+static BOOL gIsFirstSession = NO;
+static NSString * gInstallationId = nil;
+
+@implementation FirstSession
+
++ (void)setup:(NSArray *)serverUrls withLaunchOptions:(NSDictionary *)options {
+#if (TARGET_OS_IPHONE > 0)
+  NSNotificationCenter * nc = [NSNotificationCenter defaultCenter];
+  Class cls = [FirstSession class];
+  [nc addObserver:cls selector:@selector(applicationDidEnterBackground:) name:UIApplicationDidEnterBackgroundNotification object:nil];
+  [nc addObserver:cls selector:@selector(applicationWillTerminate:) name:UIApplicationWillTerminateNotification object:nil];
+#endif // TARGET_OS_IPHONE
+  // INIT
+  [self installationId];
+}
+#if (TARGET_OS_IPHONE > 0)
++ (void)applicationDidEnterBackground:(NSNotification *)notification {
+  if (gIsFirstSession) {
+    gIsFirstSession = NO;
+  }
+}
+
++ (void)applicationWillTerminate:(NSNotification *)notification {
+  [[NSNotificationCenter defaultCenter] removeObserver:self];
+}
+#endif // TARGET_OS_IPHONE
+
+#pragma mark Utility methods
+
++ (BOOL)isFirstSession {
+  return [self installationId] != nil && gIsFirstSession;
+}
+
++ (NSDate *)firstLaunchDate {
+  NSUserDefaults * ud = [NSUserDefaults standardUserDefaults];
+  NSDate * date = [ud objectForKey:kFirstLaunchDateKey];
+  if (!date) {
+    // Non-standard situation: this method is called before calling setup. Return current date.
+    date = [NSDate date];
+    [ud setObject:date forKey:kFirstLaunchDateKey];
+  }
+  return date;
+}
+
++ (NSInteger)totalSecondsSpentInTheApp {
+  NSInteger seconds = [[NSUserDefaults standardUserDefaults] integerForKey:kTotalSecondsInTheApp];
+  // Take into an account currently active session.
+  if (gSessionStartTime) {
+    seconds += static_cast<NSInteger>(-gSessionStartTime.timeIntervalSinceNow);
+  }
+  return seconds;
+}
+
+// Internal helper, returns nil for invalid paths.
++ (NSDate *)fileCreationDate:(NSString *)fullPath {
+  NSDictionary * attributes = [[NSFileManager defaultManager] attributesOfItemAtPath:fullPath error:nil];
+  return attributes ? [attributes objectForKey:NSFileCreationDate] : nil;
+}
+
++ (NSDate *)installDate {
+  return [FirstSession fileCreationDate:[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject]];
+}
+
++ (NSDate *)updateDate {
+  return [FirstSession fileCreationDate:[[NSBundle mainBundle] resourcePath]];
+}
+
++ (NSDate *)buildDate {
+  return [FirstSession fileCreationDate:[[NSBundle mainBundle] executablePath]];
+}
+
++ (NSString *)installationId {
+  if (gInstallationId == nil) {
+    gIsFirstSession = NO;
+    NSUserDefaults * ud = [NSUserDefaults standardUserDefaults];
+    gInstallationId = [ud stringForKey:kAlohalyticsInstallationId];
+    if (gInstallationId == nil) {
+      CFUUIDRef uuid = CFUUIDCreate(kCFAllocatorDefault);
+      // All iOS IDs start with I:
+      gInstallationId = [@"I:" stringByAppendingString:(NSString *)CFBridgingRelease(CFUUIDCreateString(kCFAllocatorDefault, uuid))];
+      CFRelease(uuid);
+      [ud setValue:gInstallationId forKey:kAlohalyticsInstallationId];
+      gIsFirstSession = YES;
+    }
+  }
+  return gInstallationId;
+}
+
+@end