fix #97; check userAuthenticationRequired and useStrongBoxForKeys whe…

…n building EudiWallet and unset if either one is not supported; removed unused code
eu-digital-identity-wallet · Nov 22, 2024 · 5d2d329 · 5d2d329
1 parent c54f576
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diff --git a/...eu.europa.ec.eudi.wallet/-eudi-wallet-config/configure-document-key-creation.md b/...eu.europa.ec.eudi.wallet/-eudi-wallet-config/configure-document-key-creation.md
@@ -17,14 +17,21 @@ values are used to create the eu.europa.ec.eudi.wallet.document.CreateDocumentSe
 using [eu.europa.ec.eudi.wallet.document.DocumentExtensions.getDefaultCreateDocumentSettings](../../eu.europa.ec.eudi.wallet.document/-document-extensions/get-default-create-document-settings.md)
 method.
 
+If user authentication is required, the user authentication timeout must be greater than 0.
+
+**Note**: when setting userAuthenticationRequired to true, device must be secured with a PIN,
+pattern or password.
+
+**Note**: when setting useStrongBoxForKeys to true, the device must support the StrongBox.
+
 The default values are:
 
 -
 userAuthenticationRequired: false
 -
 userAuthenticationTimeout: 0
 -
-useStrongBoxForKeys: true
+useStrongBoxForKeys: true if supported by the device
 
 #### Parameters
 

diff --git a/docs/wallet-core/eu.europa.ec.eudi.wallet/-eudi-wallet/-builder/build.md b/docs/wallet-core/eu.europa.ec.eudi.wallet/-eudi-wallet/-builder/build.md
@@ -7,12 +7,42 @@ fun [build](build.md)(): [EudiWallet](../index.md)
 
 Build the [EudiWallet](../index.md) instance
 
-#### Return
+The [EudiWallet](../index.md) instance will be created based on the configuration provided in
+the [Builder](index.md) class.
 
-[EudiWallet](../index.md)
+The [EudiWallet](../index.md) instance will be created with the following default implementations if
+not set:
+
+-
+AndroidStorageEngine for storing/retrieving documents
+-
+AndroidKeystoreSecureArea for managing documents' keys
+-
+DocumentManagerImpl for managing documents
+-
+[PresentationManagerImpl](../../../eu.europa.ec.eudi.wallet.presentation/-presentation-manager-impl/index.md)
+for both proximity and remote presentation
+-
+[OpenId4VpManager](../../../eu.europa.ec.eudi.wallet.transfer.openId4vp/-open-id4-vp-manager/index.md)
+for remote presentation
+-
+TransferManagerImpl for proximity presentation
+
+**Note**:
+The [EudiWalletConfig.documentsStorageDir](../../-eudi-wallet-config/documents-storage-dir.md) is
+not set, the default storage directory will be used which is the application's no backup files
+directory.
 
-#### Throws
+**Note**:
+The [EudiWalletConfig.userAuthenticationRequired](../../-eudi-wallet-config/user-authentication-required.md)
+is set to true and the device is not secured with a PIN, pattern, or password, the configuration
+will be updated to set the user authentication required to false.
 
-|                                                                                                                  |                                                                                                                                                                  |
-|------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| [IllegalStateException](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-illegal-state-exception/index.html) | if [EudiWalletConfig.documentsStorageDir](../../-eudi-wallet-config/documents-storage-dir.md) is not set and and the default DocumentManager is going to be used |
+**Note**:
+The [EudiWalletConfig.useStrongBoxForKeys](../../-eudi-wallet-config/use-strong-box-for-keys.md) is
+set to true and the device does not support StrongBox, the configuration will be updated to set the
+use StrongBox for keys to false.
+
+#### Return
+
+[EudiWallet](../index.md)
diff --git a/gradle.properties b/gradle.properties
@@ -42,7 +42,7 @@ systemProp.sonar.host.url=https://sonarcloud.io
 systemProp.sonar.gradle.skipCompile=true
 systemProp.sonar.coverage.jacoco.xmlReportPaths=build/reports/jacoco/testDebugUnitTestCoverage/testDebugUnitTestCoverage.xml,build/reports/jacoco/testReleaseUnitTestCoverage/testReleaseUnitTestCoverage.xml
 systemProp.sonar.projectName=eudi-lib-android-wallet-core
-VERSION_NAME=0.12.0
+VERSION_NAME=0.12.1-SNAPSHOT
 
 SONATYPE_HOST=S01
 SONATYPE_AUTOMATIC_RELEASE=false

diff --git a/licenses.md b/licenses.md
@@ -2,7 +2,7 @@
 # EUDI Wallet Core library for Android
 ## Dependency License Report
 
-_2024-11-20 17:38:59 EET_
+_2024-11-22 13:51:07 EET_
 ## Apache License, Version 2.0
 
 **1** **Group:** `androidx.appcompat` **Name:** `appcompat` **Version:** `1.6.1` 

diff --git a/wallet-core/build.gradle.kts b/wallet-core/build.gradle.kts
@@ -106,50 +106,40 @@ android {
 
 dependencies {
 
-    implementation(libs.appcompat)
-
     // EUDI libs
     api(libs.eudi.document.manager)
     api(libs.eudi.iso18013.data.transfer)
+    // Identity android library
+    api(libs.google.identity.android) {
+        exclude(group = "org.bouncycastle")
+    }
 
+    implementation(libs.appcompat)
     // OpenID4VCI
     implementation(libs.eudi.lib.jvm.openid4vci.kt)
     implementation(libs.nimbus.oauth2.oidc.sdk)
-
     // Siop-Openid4VP library
     implementation(libs.eudi.lib.jvm.siop.openid4vp.kt) {
         exclude(group = "org.bouncycastle")
     }
-
-    // Identity android library
-    api(libs.google.identity.android) {
-        exclude(group = "org.bouncycastle")
-    }
-
     implementation(libs.kotlinx.datetime)
     implementation(libs.kotlinx.io.core)
     implementation(libs.kotlinx.io.bytestring)
-
     // CBOR
     implementation(libs.cbor)
-
-    testImplementation(libs.testng)
-
+    implementation(libs.upokecenter.cbor)
+    implementation(libs.cose.java)
     // Ktor Android Engine
-    runtimeOnly(libs.ktor.client.android)
     implementation(libs.ktor.client.logging)
-
     // Bouncy Castle
     implementation(libs.bouncy.castle.prov)
     implementation(libs.bouncy.castle.pkix)
 
-    implementation(libs.upokecenter.cbor)
-    implementation(libs.cose.java)
+    runtimeOnly(libs.ktor.client.android)
 
     testImplementation(kotlin("test"))
     testImplementation(libs.mockk)
     testImplementation(libs.json)
-    testImplementation(libs.junit.jupiter.params)
     testImplementation(libs.kotlin.coroutines.test)
     testImplementation(libs.biometric.ktx)
 

diff --git a/wallet-core/src/androidTest/java/eu/europa/ec/eudi/wallet/EudiWalletTest.kt b/wallet-core/src/androidTest/java/eu/europa/ec/eudi/wallet/EudiWalletTest.kt
@@ -54,8 +54,9 @@ class EudiWalletTest {
     fun testLoadSampleDocuments() {
         walletConfig = EudiWalletConfig()
             .configureDocumentKeyCreation(
-                userAuthenticationRequired = false,
-                useStrongBoxForKeys = false,
+                userAuthenticationRequired = true,
+                userAuthenticationTimeout = 30_000L,
+                useStrongBoxForKeys = true,
             )
 
         val result = wallet.loadMdocSampleDocuments(

diff --git a/wallet-core/src/main/java/eu/europa/ec/eudi/wallet/EudiWallet.kt b/wallet-core/src/main/java/eu/europa/ec/eudi/wallet/EudiWallet.kt
@@ -24,11 +24,13 @@ import com.android.identity.securearea.SecureArea
 import com.android.identity.securearea.SecureAreaRepository
 import com.android.identity.storage.StorageEngine
 import eu.europa.ec.eudi.iso18013.transfer.TransferManager
+import eu.europa.ec.eudi.iso18013.transfer.TransferManagerImpl
 import eu.europa.ec.eudi.iso18013.transfer.engagement.BleRetrievalMethod
 import eu.europa.ec.eudi.iso18013.transfer.readerauth.ReaderTrustStore
 import eu.europa.ec.eudi.wallet.document.*
 import eu.europa.ec.eudi.wallet.document.sample.SampleDocumentManager
 import eu.europa.ec.eudi.wallet.internal.LogPrinterImpl
+import eu.europa.ec.eudi.wallet.internal.i
 import eu.europa.ec.eudi.wallet.issue.openid4vci.OpenId4VciManager
 import eu.europa.ec.eudi.wallet.logging.Logger
 import eu.europa.ec.eudi.wallet.presentation.PresentationManager
@@ -108,6 +110,8 @@ interface EudiWallet : SampleDocumentManager, PresentationManager {
 
     companion object {
 
+        private const val TAG = "EudiWallet"
+
         /**
          * Create an instance of [EudiWallet] with the given configuration and additional configuration
          * using the [Builder] class
@@ -235,16 +239,31 @@ interface EudiWallet : SampleDocumentManager, PresentationManager {
         /**
          * Build the [EudiWallet] instance
          *
-         * @throws IllegalStateException if [setConfig] is not set
-         * @throws IllegalStateException if [EudiWalletConfig.documentsStorageDir] is not set and
-         * and the default [DocumentManager] is going to be used
+         * The [EudiWallet] instance will be created based on the configuration provided in the [Builder] class.
+         *
+         * The [EudiWallet] instance will be created with the following default implementations if not set:
+         * - [AndroidStorageEngine] for storing/retrieving documents
+         * - [AndroidKeystoreSecureArea] for managing documents' keys
+         * - [DocumentManagerImpl] for managing documents
+         * - [PresentationManagerImpl] for both proximity and remote presentation
+         * - [OpenId4VpManager] for remote presentation
+         * - [TransferManagerImpl] for proximity presentation
+         *
+         * **Note**: The [EudiWalletConfig.documentsStorageDir] is not set, the default storage directory
+         * will be used which is the application's no backup files directory.
+         *
+         * **Note**: The [EudiWalletConfig.userAuthenticationRequired] is set to true and the device is not secured with a PIN,
+         * pattern, or password, the configuration will be updated to set the user authentication required to false.
+         *
+         * **Note**: The [EudiWalletConfig.useStrongBoxForKeys] is set to true and the device does not support StrongBox,
+         * the configuration will be updated to set the use StrongBox for keys to false.
+         *
          * @return [EudiWallet]
          */
         fun build(): EudiWallet {
 
-            val loggerToUse = (logger ?: Logger(config)).also {
-                IdentityLogger.setLogPrinter(LogPrinterImpl(it))
-            }
+            ensureStrongBoxIsSupported()
+            ensureUserAuthIsSupported()
 
             val documentManagerToUse =
                 documentManager ?: getDefaultDocumentManager(storageEngine, secureAreas)
@@ -253,31 +272,18 @@ interface EudiWallet : SampleDocumentManager, PresentationManager {
 
             val transferManager = getTransferManager(documentManagerToUse, readerTrustStoreToUse)
 
-            val presentationManagerToUse = presentationManager ?: run {
-                val openId4vpManager = config.openId4VpConfig?.let { openId4VpConfig ->
-                    OpenId4VpManager(
-                        config = openId4VpConfig,
-                        requestProcessor = OpenId4VpRequestProcessor(
-                            documentManagerToUse,
-                            readerTrustStoreToUse
-                        ),
-                        logger = loggerToUse,
-                        ktorHttpClientFactory = ktorHttpClientFactory
-                    )
-                }
-                PresentationManagerImpl(
-                    transferManager = transferManager,
-                    openId4vpManager = openId4vpManager,
-                    nfcEngagementServiceClass = config.nfcEngagementServiceClass,
-                )
-            }
+            val presentationManagerToUse = presentationManager ?: getDefaultPresentationManager(
+                documentManager = documentManagerToUse,
+                transferManager = transferManager,
+                readerTrustStore = readerTrustStoreToUse
+            )
 
             val openId4vpManagerFactory = {
                 config.openId4VciConfig?.let { openId4VciConfig ->
                     OpenId4VciManager(context) {
                         documentManager(documentManagerToUse)
                         config(openId4VciConfig)
-                        logger(loggerToUse)
+                        logger(loggerObj)
                         ktorHttpClientFactory?.let { ktorHttpClientFactory(it) }
                     }
                 } ?: throw IllegalStateException("OpenId4Vp configuration is missing")
@@ -289,12 +295,47 @@ interface EudiWallet : SampleDocumentManager, PresentationManager {
                 documentManager = documentManagerToUse,
                 presentationManager = presentationManagerToUse,
                 transferManager = transferManager,
-                logger = loggerToUse,
+                logger = loggerObj,
                 readerTrustStoreConsumer = { presentationManagerToUse.readerTrustStore = it },
                 openId4VciManagerFactory = openId4vpManagerFactory,
             )
         }
 
+        /**
+         * Get the default [PresentationManagerImpl] instance based on the [DocumentManager] and [TransferManager] implementations
+         * @param documentManager the document manager
+         * @param transferManager the transfer manager
+         * @param readerTrustStore the reader trust store
+         * @return the default [PresentationManagerImpl] instance
+         */
+        @JvmSynthetic
+        internal fun getDefaultPresentationManager(
+            documentManager: DocumentManager,
+            transferManager: TransferManager,
+            readerTrustStore: ReaderTrustStore?,
+        ): PresentationManagerImpl {
+            val openId4vpManager = config.openId4VpConfig?.let { openId4VpConfig ->
+                OpenId4VpManager(
+                    config = openId4VpConfig,
+                    requestProcessor = OpenId4VpRequestProcessor(documentManager, readerTrustStore),
+                    logger = loggerObj,
+                    ktorHttpClientFactory = ktorHttpClientFactory
+                )
+            }
+            return PresentationManagerImpl(
+                transferManager = transferManager,
+                openId4vpManager = openId4vpManager,
+                nfcEngagementServiceClass = config.nfcEngagementServiceClass,
+            )
+        }
+
+        @get:JvmSynthetic
+        internal val loggerObj: Logger by lazy {
+            (logger ?: Logger(config)).also {
+                IdentityLogger.setLogPrinter(LogPrinterImpl(it))
+            }
+        }
+
         @get:JvmSynthetic
         internal val defaultStorageDir: Path
             get() = Path(
@@ -336,9 +377,9 @@ interface EudiWallet : SampleDocumentManager, PresentationManager {
                 return AndroidStorageEngine.Builder(
                     context = context,
                     storageFile = documentsStorageDirToUse
-                ).apply {
-                    setUseEncryption(config.encryptDocumentsInStorage)
-                }.build()
+                )
+                    .setUseEncryption(config.encryptDocumentsInStorage)
+                    .build()
             }
 
         /**
@@ -400,5 +441,44 @@ interface EudiWallet : SampleDocumentManager, PresentationManager {
                 )
             )
         )
+
+        /**
+         * Returns the capabilities of the Android Keystore Secure Area
+         */
+        @get:JvmSynthetic
+        internal val capabilities: AndroidKeystoreSecureArea.Capabilities by lazy {
+            AndroidKeystoreSecureArea.Capabilities(context)
+        }
+
+        /**
+         * Check if user authentication is required and update the configuration
+         * if the device is not secure and the configuration is set to require user authentication
+         */
+        @JvmSynthetic
+        internal fun ensureUserAuthIsSupported() {
+            if (capabilities.secureLockScreenSetup.not() && config.userAuthenticationRequired) {
+                loggerObj.i(
+                    TAG,
+                    """User authentication is required but the device is not secured with a PIN, pattern, or password.
+                    | Setting EudiWalletConfig.userAuthenticationRequired to false.""".trimMargin()
+                )
+                config.userAuthenticationRequired = false
+            }
+        }
+
+        /**
+         * Check if StrongBox is supported on the device and update the configuration
+         * if it is not supported and the configuration is set to use StrongBox
+         */
+        @JvmSynthetic
+        internal fun ensureStrongBoxIsSupported() {
+            if (capabilities.strongBoxSupported.not() && config.useStrongBoxForKeys) {
+                loggerObj.i(
+                    TAG, """StrongBox is not supported on this device.
+                    | Setting EudiWalletConfig.useStrongBoxForKeys to false.""".trimMargin()
+                )
+                config.useStrongBoxForKeys = false
+            }
+        }
     }
 }