[PB-5934] feature/Add share extension login ui and flow

assets/lang/strings.ts

@@ -322,6 +322,14 @@ const translations = {
           action: 'Export backup key',
         },
       },
+      ShareExtension: {
+        title: 'Save to Internxt',
+        notSignedIn: {
+          title: "You're not signed in",
+          subtitle: 'Log in to upload files securely',
+          openLogin: 'Open Internxt login',
+        },
+      },
     },
     buttons: {
       fixPhoto: 'Repair photo',
@@ -1126,6 +1134,14 @@ const translations = {
           action: 'Exportar la clave de seguridad',
         },
       },
+      ShareExtension: {
+        title: 'Guardar en Internxt',
+        notSignedIn: {
+          title: 'No has iniciado sesión',
+          subtitle: 'Inicia sesión para subir archivos de forma segura',
+          openLogin: 'Abrir login de Internxt',
+        },
+      },
     },
     buttons: {
       fixPhoto: 'Reparar foto',

ios/Internxt.xcodeproj/project.pbxproj

@@ -270,13 +270,13 @@
 				LastUpgradeCheck = 1130;
 				TargetAttributes = {
 					13B07F861A680F5B00A75B9A = {
+						DevelopmentTeam = JR4S3SY396;
 						LastSwiftMigration = 1250;
-						DevelopmentTeam = "JR4S3SY396";
 						ProvisioningStyle = Automatic;
 					};
 					573EC8782D084646801534FA = {
+						DevelopmentTeam = JR4S3SY396;
 						LastSwiftMigration = 1250;
-						DevelopmentTeam = "JR4S3SY396";
 						ProvisioningStyle = Automatic;
 					};
 				};
@@ -607,7 +607,10 @@
 			buildSettings = {
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_ENTITLEMENTS = InternxtShareExtension/InternxtShareExtension.entitlements;
+				CODE_SIGN_IDENTITY = "Apple Development";
+				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = JR4S3SY396;
 				ENABLE_ON_DEMAND_RESOURCES = NO;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = InternxtShareExtension/Info.plist;
@@ -624,9 +627,6 @@
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
-				DEVELOPMENT_TEAM = "JR4S3SY396";
-				CODE_SIGN_IDENTITY = "Apple Development";
-				CODE_SIGN_STYLE = Automatic;
 			};
 			name = Debug;
 		};
@@ -637,7 +637,10 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_ENTITLEMENTS = Internxt/Internxt.entitlements;
+				CODE_SIGN_IDENTITY = "Apple Development";
+				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = JR4S3SY396;
 				ENABLE_BITCODE = NO;
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					"$(inherited)",
@@ -663,9 +666,6 @@
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VERSIONING_SYSTEM = "apple-generic";
-				DEVELOPMENT_TEAM = "JR4S3SY396";
-				CODE_SIGN_IDENTITY = "Apple Development";
-				CODE_SIGN_STYLE = Automatic;
 			};
 			name = Debug;
 		};
@@ -676,7 +676,10 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_ENTITLEMENTS = Internxt/Internxt.entitlements;
+				CODE_SIGN_IDENTITY = "Apple Development";
+				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = JR4S3SY396;
 				INFOPLIST_FILE = Internxt/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 15.1;
 				LD_RUNPATH_SEARCH_PATHS = (
@@ -696,9 +699,6 @@
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VERSIONING_SYSTEM = "apple-generic";
-				DEVELOPMENT_TEAM = "JR4S3SY396";
-				CODE_SIGN_IDENTITY = "Apple Development";
-				CODE_SIGN_STYLE = Automatic;
 			};
 			name = Release;
 		};
@@ -826,7 +826,10 @@
 			buildSettings = {
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_ENTITLEMENTS = InternxtShareExtension/InternxtShareExtension.entitlements;
+				CODE_SIGN_IDENTITY = "Apple Development";
+				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = JR4S3SY396;
 				ENABLE_ON_DEMAND_RESOURCES = NO;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = InternxtShareExtension/Info.plist;
@@ -842,9 +845,6 @@
 				PRODUCT_NAME = InternxtShareExtension;
 				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
-				DEVELOPMENT_TEAM = "JR4S3SY396";
-				CODE_SIGN_IDENTITY = "Apple Development";
-				CODE_SIGN_STYLE = Automatic;
 			};
 			name = Release;
 		};

ios/Internxt/AppDelegate.swift

@@ -1,6 +1,7 @@
 import Expo
 import React
 import ReactAppDependencyProvider
+import Security
 
 @UIApplicationMain
 public class AppDelegate: ExpoAppDelegate {
@@ -29,9 +30,100 @@ public class AppDelegate: ExpoAppDelegate {
       launchOptions: launchOptions)
 #endif
 
+    syncAuthStatusToAppGroup()
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
 
+  // Sync auth status whenever the app moves to background so the share
+  // extension always reads an up-to-date value from the shared UserDefaults.
+  public override func applicationDidEnterBackground(_ application: UIApplication) {
+    syncAuthStatusToAppGroup()
+    super.applicationDidEnterBackground(application)
+  }
+
+  // MARK: - App Group auth sync
+
+  private func syncAuthStatusToAppGroup() {
+    guard let appGroup = Bundle.main.object(forInfoDictionaryKey: "AppGroup") as? String,
+          let defaults = UserDefaults(suiteName: appGroup),
+          let sharedGroup = Bundle.main.object(forInfoDictionaryKey: "SharedKeychainGroup") as? String
+    else { return }
+
+    let isAuthenticated = privateKeychainItemExists(key: "photosToken")
+    defaults.set(isAuthenticated, forKey: "isAuthenticated")
+
+    if isAuthenticated {
+      copyToSharedKeychain(privateKey: "photosToken", sharedKey: "shared_photosToken", accessGroup: sharedGroup)
+      copyToSharedKeychain(privateKey: "xUser_mnemonic", sharedKey: "shared_mnemonic", accessGroup: sharedGroup)
+      defaults.set(readEmailFromKeychain(), forKey: "userEmail")
+    } else {
+      deleteFromSharedKeychain(key: "shared_photosToken", accessGroup: sharedGroup)
+      deleteFromSharedKeychain(key: "shared_mnemonic", accessGroup: sharedGroup)
+      defaults.removeObject(forKey: "userEmail")
+    }
+  }
+
+  private func readEmailFromKeychain() -> String? {
+    guard let data = readFromPrivateKeychain(key: "xUser_data"),
+          var raw = String(data: data, encoding: .utf8) else { return nil }
+    if raw.hasPrefix("\"") && raw.hasSuffix("\"") {
+      raw = String(raw.dropFirst().dropLast())
+    }
+    guard let jsonData = raw.data(using: .utf8),
+          let json = try? JSONSerialization.jsonObject(with: jsonData) as? [String: Any],
+          let email = json["email"] as? String else { return nil }
+    return email
+  }
+
+  private func privateKeychainItemExists(key: String) -> Bool {
+    return readFromPrivateKeychain(key: key) != nil
+  }
+
+  private func copyToSharedKeychain(privateKey: String, sharedKey: String, accessGroup: String) {
+    guard let data = readFromPrivateKeychain(key: privateKey) else { return }
+    writeToSharedKeychain(data: data, key: sharedKey, accessGroup: accessGroup)
+  }
+
+  private func readFromPrivateKeychain(key: String) -> Data? {
+    var result: AnyObject?
+    let query: [String: Any] = [
+      kSecClass as String: kSecClassGenericPassword,
+      kSecAttrService as String: "app:no-auth",
+      kSecAttrGeneric as String: Data(key.utf8),
+      kSecAttrAccount as String: Data(key.utf8),
+      kSecMatchLimit as String: kSecMatchLimitOne,
+      kSecReturnData as String: true,
+    ]
+    guard SecItemCopyMatching(query as CFDictionary, &result) == errSecSuccess,
+          let data = result as? Data else { return nil }
+    return data
+  }
+
+  private func writeToSharedKeychain(data: Data, key: String, accessGroup: String) {
+    deleteFromSharedKeychain(key: key, accessGroup: accessGroup)
+    let query: [String: Any] = [
+      kSecClass as String: kSecClassGenericPassword,
+      kSecAttrService as String: "app:no-auth",
+      kSecAttrGeneric as String: Data(key.utf8),
+      kSecAttrAccount as String: Data(key.utf8),
+      kSecAttrAccessGroup as String: accessGroup,
+      kSecAttrAccessible as String: kSecAttrAccessibleWhenUnlocked,
+      kSecValueData as String: data,
+    ]
+    SecItemAdd(query as CFDictionary, nil)
+  }
+
+  private func deleteFromSharedKeychain(key: String, accessGroup: String) {
+    let query: [String: Any] = [
+      kSecClass as String: kSecClassGenericPassword,
+      kSecAttrService as String: "app:no-auth",
+      kSecAttrGeneric as String: Data(key.utf8),
+      kSecAttrAccount as String: Data(key.utf8),
+      kSecAttrAccessGroup as String: accessGroup,
+    ]
+    SecItemDelete(query as CFDictionary)
+  }
+
   // Linking API
   public override func application(
     _ app: UIApplication,

ios/Internxt/Info.plist

@@ -6,6 +6,8 @@
     <string>group.com.internxt.snacks</string>
     <key>AppGroupIdentifier</key>
     <string>group.com.internxt.snacks</string>
+    <key>SharedKeychainGroup</key>
+    <string>$(AppIdentifierPrefix)group.com.internxt.snacks</string>
     <key>CADisableMinimumFrameDurationOnPhone</key>
     <true/>
     <key>CFBundleDevelopmentRegion</key>

ios/Internxt/Internxt.entitlements

@@ -24,5 +24,9 @@
     <array>
       <string>group.com.internxt.snacks</string>
     </array>
+    <key>keychain-access-groups</key>
+    <array>
+      <string>$(AppIdentifierPrefix)group.com.internxt.snacks</string>
+    </array>
   </dict>
 </plist>

ios/InternxtShareExtension/Info.plist

@@ -6,6 +6,8 @@
 	<string>group.com.internxt.snacks</string>
 	<key>AppGroupIdentifier</key>
 	<string>group.com.internxt.snacks</string>
+	<key>SharedKeychainGroup</key>
+	<string>$(AppIdentifierPrefix)group.com.internxt.snacks</string>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>$(DEVELOPMENT_LANGUAGE)</string>
 	<key>CFBundleDisplayName</key>

ios/InternxtShareExtension/InternxtShareExtension.entitlements

@@ -6,5 +6,9 @@
     <array>
       <string>group.com.internxt.snacks</string>
     </array>
+    <key>keychain-access-groups</key>
+    <array>
+      <string>$(AppIdentifierPrefix)group.com.internxt.snacks</string>
+    </array>
   </dict>
 </plist>