Cherry-picked support for iOS 12.5 from upstream

ios/CovidShield.xcodeproj/project.pbxproj

@@ -20,6 +20,8 @@
 		843B6BB825722A8400D445C5 /* URWGeometric-Bold.ttf in Resources */ = {isa = PBXBuildFile; fileRef = 843B6BB625722A8400D445C5 /* URWGeometric-Bold.ttf */; };
 		9DCF98527548A48AED34959C /* libPods-CovidShield-CovidShieldTests.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 77A1C8C77A874BCC9042935F /* libPods-CovidShield-CovidShieldTests.a */; };
 		A10A691626414D8AABBB659C /* Device-Large.png in Resources */ = {isa = PBXBuildFile; fileRef = 431D5AB0AA364B5C9E7BFF1D /* Device-Large.png */; };
+		A40D59F9258A44E6009DA167 /* ExposureNotification.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = A40D59F8258A44E6009DA167 /* ExposureNotification.framework */; settings = {ATTRIBUTES = (Weak, ); }; };
+		A4E2F5EF258A84B50037F403 /* ENActivityHandling.m in Sources */ = {isa = PBXBuildFile; fileRef = A4E2F5EE258A84B50037F403 /* ENActivityHandling.m */; };
 		BA054BD27C1A8657F6BF95BB /* libPods-CovidShield.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 52445CBEB4F2B88669022976 /* libPods-CovidShield.a */; };
 		E0C908AD8D97409895BCF901 /* img_0.png in Resources */ = {isa = PBXBuildFile; fileRef = 94B4DC3E27534960AEAA5640 /* img_0.png */; };
 /* End PBXBuildFile section */
@@ -62,8 +64,9 @@
 		843B6BB525722A8400D445C5 /* URWGeometric-Regular.ttf */ = {isa = PBXFileReference; lastKnownFileType = file; path = "URWGeometric-Regular.ttf"; sourceTree = "<group>"; };
 		843B6BB625722A8400D445C5 /* URWGeometric-Bold.ttf */ = {isa = PBXFileReference; lastKnownFileType = file; path = "URWGeometric-Bold.ttf"; sourceTree = "<group>"; };
 		94B4DC3E27534960AEAA5640 /* img_0.png */ = {isa = PBXFileReference; explicitFileType = undefined; fileEncoding = 9; includeInIndex = 0; lastKnownFileType = unknown; name = img_0.png; path = ../src/assets/animation/images/img_0.png; sourceTree = "<group>"; };
-		B850EA562569729500300878 /* mn */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = mn; path = "mn.lproj/Launch Screen.strings"; sourceTree = "<group>"; };
-		B850EA572569729500300878 /* mn */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = mn; path = mn.lproj/InfoPlist.strings; sourceTree = "<group>"; };
+		A40D59F8258A44E6009DA167 /* ExposureNotification.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = ExposureNotification.framework; path = System/Library/Frameworks/ExposureNotification.framework; sourceTree = SDKROOT; };
+		A4E2F5ED258A84B50037F403 /* ENActivityHandling.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = ENActivityHandling.h; path = CovidShield/ENActivityHandling.h; sourceTree = "<group>"; };
+		A4E2F5EE258A84B50037F403 /* ENActivityHandling.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; name = ENActivityHandling.m; path = CovidShield/ENActivityHandling.m; sourceTree = "<group>"; };
 		DB9A1444C934C41C93EB531F /* Pods-CovidShield.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-CovidShield.debug.xcconfig"; path = "Target Support Files/Pods-CovidShield/Pods-CovidShield.debug.xcconfig"; sourceTree = "<group>"; };
 		ED297162215061F000B7C4FE /* JavaScriptCore.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = JavaScriptCore.framework; path = System/Library/Frameworks/JavaScriptCore.framework; sourceTree = SDKROOT; };
 		FA11CCD8EB9EB39453E3C0AA /* Pods-CovidShield-CovidShieldTests.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-CovidShield-CovidShieldTests.debug.xcconfig"; path = "Target Support Files/Pods-CovidShield-CovidShieldTests/Pods-CovidShield-CovidShieldTests.debug.xcconfig"; sourceTree = "<group>"; };
@@ -84,6 +87,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				BA054BD27C1A8657F6BF95BB /* libPods-CovidShield.a in Frameworks */,
+				A40D59F9258A44E6009DA167 /* ExposureNotification.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -139,6 +143,7 @@
 		2D16E6871FA4F8E400B85C8A /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
+				A40D59F8258A44E6009DA167 /* ExposureNotification.framework */,
 				ED297162215061F000B7C4FE /* JavaScriptCore.framework */,
 				52445CBEB4F2B88669022976 /* libPods-CovidShield.a */,
 				77A1C8C77A874BCC9042935F /* libPods-CovidShield-CovidShieldTests.a */,
@@ -164,6 +169,8 @@
 				74B6941D245F15B20077B9DA /* ExposureNotification.m */,
 				7482404D246F9C0E009F68EA /* CovidShield.h */,
 				7482404E246F9C0E009F68EA /* CovidShield.m */,
+				A4E2F5ED258A84B50037F403 /* ENActivityHandling.h */,
+				A4E2F5EE258A84B50037F403 /* ENActivityHandling.m */,
 			);
 			name = Libraries;
 			sourceTree = "<group>";
@@ -452,6 +459,7 @@
 				13B07FC11A68108700A75B9A /* main.m in Sources */,
 				7482404F246F9C0E009F68EA /* CovidShield.m in Sources */,
 				74B6941E245F15B20077B9DA /* ExposureNotification.m in Sources */,
+				A4E2F5EF258A84B50037F403 /* ENActivityHandling.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -549,7 +557,7 @@
 					"FB_SONARKIT_ENABLED=1",
 				);
 				INFOPLIST_FILE = "CovidShield/Info-debug.plist";
-				IPHONEOS_DEPLOYMENT_TARGET = 13.5;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.5;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				MARKETING_VERSION = 1;
 				OTHER_LDFLAGS = (
@@ -578,7 +586,7 @@
 				CURRENT_PROJECT_VERSION = 1;
 				DEVELOPMENT_TEAM = "";
 				INFOPLIST_FILE = CovidShield/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 13.5;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.5;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				MARKETING_VERSION = 1;
 				OTHER_LDFLAGS = (

ios/CovidShield/AppDelegate.m

@@ -1,5 +1,7 @@
 #import "AppDelegate.h"
 
+#import "ExposureNotification.h"
+
 #import <React/RCTBridge.h>
 #import <React/RCTBundleURLProvider.h>
 #import <React/RCTRootView.h>
@@ -101,10 +103,12 @@ - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(
     launchScreenView.frame = self.window.bounds;
     rootView.loadingView = launchScreenView;
   }
-
-  // [REQUIRED] Register BackgroundFetch
-  patchBGTaskSubmission();
-  [[TSBackgroundFetch sharedInstance] didFinishLaunching];
+
+  if ([ExposureNotification exposureNotificationSupportType] == ENSupportTypeVersion13dot5AndLater) {
+    // [REQUIRED] Register BackgroundFetch
+    patchBGTaskSubmission();
+    [[TSBackgroundFetch sharedInstance] didFinishLaunching];
+  }
 
   // Define UNUserNotificationCenter
   UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];

ios/CovidShield/ENActivityHandling.h

@@ -0,0 +1,21 @@
+//
+//  ENActivityHandling.h
+//  CovidShield
+//
+//  Created by  Clement Janin on 2020-12-16.
+//
+
+#import <Foundation/Foundation.h>
+#import <ExposureNotification/ExposureNotification.h>
+
+typedef void (^ENActivityHandler)(void);
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface ENManager (ENActivityHandling)
+
+- (void)setLaunchActivityHandler:(ENActivityHandler)activityHandler;
+
+@end
+
+NS_ASSUME_NONNULL_END

ios/CovidShield/ENActivityHandling.m

@@ -0,0 +1,16 @@
+//
+//  ENActivityHandling.m
+//  CovidShield
+//
+//  Created by  Clement Janin on 2020-12-16.
+//
+
+#import "ENActivityHandling.h"
+
+@implementation ENManager (ENActivityHandling)
+
+- (void)setLaunchActivityHandler:(ENActivityHandler)activityHandler {
+    [self setValue:activityHandler forKey:@"activityHandler"];
+}
+
+@end

ios/CovidShield/ExposureNotification.h

@@ -9,11 +9,20 @@
 #import <React/RCTBridgeModule.h>
 #import <ExposureNotification/ExposureNotification.h>
 
-NS_ASSUME_NONNULL_BEGIN
+typedef enum ExposureNotificationSupportType {
+  ENSupportTypeVersion12dot5,
+  ENSupportTypeVersion13dot5AndLater,
+  ENSupportTypeUnsupported
+} ExposureNotificationSupportType;
 
+NS_ASSUME_NONNULL_BEGIN
 
 @interface ExposureNotification : NSObject<RCTBridgeModule>
+
 @property (nonatomic, nullable, strong) ENManager *enManager;
+
++ (ExposureNotificationSupportType) exposureNotificationSupportType;
+
 @end
 
 NS_ASSUME_NONNULL_END

ios/CovidShield/ExposureNotification.m

@@ -6,9 +6,11 @@
 //
 
 #import "ExposureNotification.h"
-#import <React/RCTConvert.h>
 
+#import "ENActivityHandling.h"
 
+#import <React/RCTConvert.h>
+#import <TSBackgroundFetch/TSBackgroundFetch.h>
 
 @interface ExposureNotification ()
 @property (nonatomic) NSMutableArray *reportedSummaries;
@@ -34,13 +36,43 @@ - (void)invalidate
   self.enManager = nil;
 }
 
++ (ExposureNotificationSupportType) exposureNotificationSupportType {
+  if (@available(iOS 13.5, *)) {
+    return ENSupportTypeVersion13dot5AndLater;
+  } else if (NSClassFromString(@"ENManager") != nil) { // This check is specific to iOS 12.5
+    return ENSupportTypeVersion12dot5;
+  } else {
+    return ENSupportTypeUnsupported;
+  }
+}
+
 RCT_EXPORT_MODULE();
 
-RCT_REMAP_METHOD(start, startWithResolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
+RCT_REMAP_METHOD(isExposureNotificationsFrameworkSupported, isExposureNotificationsFrameworkSupportedWithResolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
 {
-  if (self.enManager) return;
+  if ([ExposureNotification exposureNotificationSupportType] == ENSupportTypeUnsupported) {
+    reject(@"API_NOT_AVAILABLE", @"Exposure Notifications Framework is not supported", nil);
+  } else {
+    resolve(nil);
+  }
+}
+
+RCT_REMAP_METHOD(activate, activateWithCompletionHandler:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject) {
+  if (self.enManager) {
+    resolve(nil);
+    return;
+  };
+
   self.enManager = [ENManager new];
 
+  if ([ExposureNotification exposureNotificationSupportType] == ENSupportTypeVersion12dot5) {
+    [self.enManager setLaunchActivityHandler:^() {
+      TSBackgroundFetch *fetchManager = [TSBackgroundFetch sharedInstance];
+      [fetchManager performFetchWithCompletionHandler:^void(UIBackgroundFetchResult r) {}
+                                     applicationState:UIApplicationStateBackground];
+    }];
+  }
+
   [self.enManager activateWithCompletionHandler:^(NSError * _Nullable error) {
     if (error) {
       reject([NSString stringWithFormat:@"%ld", (long)error.code], error.localizedDescription ,error);
@@ -154,7 +186,7 @@ - (void)invalidate
     reject(@"API_NOT_ENABLED", [NSString stringWithFormat:@"Exposure Notification not authorized: %ld", ENManager.authorizationStatus], nil);
     return;
   }
-  
+
   ENExposureConfiguration *configuration = [ENExposureConfiguration new];
 
   if (configDict[@"metadata"]) {
@@ -164,19 +196,19 @@ - (void)invalidate
   if (configDict[@"minimumRiskScore"]) {
     configuration.minimumRiskScore = [configDict[@"minimumRiskScore"] intValue];
   }
-  
+
   if (configDict[@"attenuationDurationThresholds"]) {
     if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 13.6) {
       configuration.attenuationDurationThresholds = mapIntValues(configDict[@"attenuationDurationThresholds"]);
     } else {
       configuration.metadata = @{@"attenuationDurationThresholds": mapIntValues(configDict[@"attenuationDurationThresholds"])};
     }
   }
-  
+
   if (configDict[@"attenuationLevelValues"]) {
     configuration.attenuationLevelValues = mapIntValues(configDict[@"attenuationLevelValues"]);
   }
-  
+
   if (configDict[@"attenuationWeight"]) {
     configuration.attenuationWeight = [configDict[@"attenuationWeight"] doubleValue];
   }
@@ -227,4 +259,3 @@ - (void)invalidate
 }
 
 @end
-

src/locale/translations/en.json

@@ -84,8 +84,7 @@
     },
     "FrameworkUnavailable": {
       "Title": "Something went wrong",
-      "Body": "COVID Alert is not supported by your phone’s operating system.\n\nMake sure your operating system is up to date.\n\nIf you have an Android phone, try updating your Google Play Services.",
-      "CTA": "Get Help"
+      "Body": "To use COVID Alert, please update your operating system."
     },
     "UnknownProblem": {
       "Title": "Something went wrong",