Allow overriding biometric reauth logic in latte

authgear · Aug 31, 2023 · f2f72e6 · f2f72e6
1 parent e78031f
commit f2f72e6
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Showing 3 changed files with 50 additions and 16 deletions.
diff --git a/sdk/src/main/java/com/oursky/authgear/latte/Latte.kt b/sdk/src/main/java/com/oursky/authgear/latte/Latte.kt
@@ -178,35 +178,24 @@ class Latte(
                     builder.setNegativeButtonText(negativeButtonText)
                 }
                 val promptInfo = builder.build()
+                val callback = options.biometricCallback
                 val prompt =
                     BiometricPrompt(
                         biometricOptions.activity,
                         object : BiometricPrompt.AuthenticationCallback() {
                             override fun onAuthenticationFailed() {
-                                // This callback will be invoked EVERY time the recognition failed.
-                                // So while the prompt is still opened, this callback can be called repetitively.
-                                // Finally, either onAuthenticationError or onAuthenticationSucceeded will be called.
-                                // So this callback is not important to the developer.
+                                callback.onAuthenticationFailed(resumeWith)
                             }
 
                             override fun onAuthenticationError(
                                 errorCode: Int,
                                 errString: CharSequence
                             ) {
-                                if (isBiometricCancelError(errorCode)) {
-                                    return
-                                }
-                                resumeWith(
-                                    Result.failure(
-                                        wrapException(BiometricPromptAuthenticationException(
-                                            errorCode
-                                        ))
-                                    )
-                                )
+                                callback.onAuthenticationError(errorCode, errString, resumeWith)
                             }
 
                             override fun onAuthenticationSucceeded(result: BiometricPrompt.AuthenticationResult) {
-                                resumeWith(Result.success(true))
+                                callback.onAuthenticationSucceeded(result, resumeWith)
                             }
                         })
 

diff --git a/sdk/src/main/java/com/oursky/authgear/latte/ReauthenticateBiometricCallback.kt b/sdk/src/main/java/com/oursky/authgear/latte/ReauthenticateBiometricCallback.kt
@@ -0,0 +1,44 @@
+package com.oursky.authgear.latte
+
+import androidx.biometric.BiometricPrompt
+import com.oursky.authgear.BiometricPromptAuthenticationException
+import com.oursky.authgear.isBiometricCancelError
+import com.oursky.authgear.wrapException
+
+interface ReauthenticateBiometricCallback {
+
+    @JvmDefault
+    fun onAuthenticationFailed(complete: FlowCompletor) {
+        // This callback will be invoked EVERY time the recognition failed.
+        // So while the prompt is still opened, this callback can be called repetitively.
+        // Finally, either onAuthenticationError or onAuthenticationSucceeded will be called.
+        // So this callback is not important to the developer.
+    }
+
+    @JvmDefault
+    fun onAuthenticationError(
+        errorCode: Int,
+        errString: CharSequence,
+        complete: FlowCompletor
+    ) {
+        if (isBiometricCancelError(errorCode)) {
+            return
+        }
+        complete(
+            Result.failure(
+                wrapException(
+                    BiometricPromptAuthenticationException(
+                        errorCode
+                    )
+                )
+            )
+        )
+    }
+
+    @JvmDefault
+    fun onAuthenticationSucceeded(result: BiometricPrompt.AuthenticationResult, complete: FlowCompletor) {
+        complete(Result.success(true))
+    }
+}
+
+typealias FlowCompletor = (Result<Boolean>) -> Unit
diff --git a/sdk/src/main/java/com/oursky/authgear/latte/ReauthenticateOptions.kt b/sdk/src/main/java/com/oursky/authgear/latte/ReauthenticateOptions.kt
@@ -4,5 +4,6 @@ data class ReauthenticateOptions @JvmOverloads constructor(
     var xSecrets: Map<String, String> = mapOf(),
     var xState: Map<String, String> = mapOf(),
     var uiLocales: List<String>? = null,
-    var biometricOptions: BiometricOptions? = null
+    var biometricOptions: BiometricOptions? = null,
+    var biometricCallback: ReauthenticateBiometricCallback = object : ReauthenticateBiometricCallback {}
 )