feat: implement credential provider service for passkeys

Signed-off-by: Aditya Wasan <adityawasan55@gmail.com>

21 files changed, 129 insertions, 267 deletions

diff --git a/passkeys/src/main/AndroidManifest.xml b/passkeys/src/main/AndroidManifest.xml
index 7a44af6e..0436b903 100644
--- a/passkeys/src/main/AndroidManifest.xml
+++ b/passkeys/src/main/AndroidManifest.xml
@@ -1,12 +1,21 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright © 2014-2024 The Android Password Store Authors. All Rights Reserved.
+  ~ SPDX-License-Identifier: LGPL-3.0-only WITH LGPL-3.0-linking-exception
+  -->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
-
-  <application
-    android:allowBackup="true"
-    android:icon="@mipmap/ic_launcher"
-    android:label="@string/app_name"
-    android:roundIcon="@mipmap/ic_launcher_round"
-    android:supportsRtl="true"
-    android:theme="@style/Theme.APS" />
-
+  <application>
+    <service
+      android:name=".APSCredentialProviderService"
+      android:enabled="true"
+      android:exported="true"
+      android:label="Android Password Store"
+      android:permission="android.permission.BIND_CREDENTIAL_PROVIDER_SERVICE">
+      <intent-filter>
+        <action android:name="android.service.credentials.CredentialProviderService" />
+      </intent-filter>
+      <meta-data
+        android:name="android.credentials.provider"
+        android:resource="@xml/provider"/>
+    </service>
+  </application>
 </manifest>
\ No newline at end of file
diff --git a/passkeys/src/main/java/app/passwordstore/passkeys/APSCredentialProviderService.kt b/passkeys/src/main/java/app/passwordstore/passkeys/APSCredentialProviderService.kt
new file mode 100644
index 00000000..b9711a40
--- /dev/null
+++ b/passkeys/src/main/java/app/passwordstore/passkeys/APSCredentialProviderService.kt
@@ -0,0 +1,103 @@
+package app.passwordstore.passkeys
+
+import android.app.PendingIntent
+import android.content.Intent
+import android.os.Build
+import android.os.CancellationSignal
+import android.os.OutcomeReceiver
+import androidx.annotation.RequiresApi
+import androidx.credentials.exceptions.ClearCredentialException
+import androidx.credentials.exceptions.CreateCredentialException
+import androidx.credentials.exceptions.CreateCredentialUnknownException
+import androidx.credentials.exceptions.GetCredentialException
+import androidx.credentials.provider.BeginCreateCredentialRequest
+import androidx.credentials.provider.BeginCreateCredentialResponse
+import androidx.credentials.provider.BeginCreatePublicKeyCredentialRequest
+import androidx.credentials.provider.BeginGetCredentialRequest
+import androidx.credentials.provider.BeginGetCredentialResponse
+import androidx.credentials.provider.CreateEntry
+import androidx.credentials.provider.CredentialProviderService
+import androidx.credentials.provider.ProviderClearCredentialStateRequest
+
+@RequiresApi(Build.VERSION_CODES.UPSIDE_DOWN_CAKE)
+public class APSCredentialProviderService : CredentialProviderService() {
+
+  override fun onBeginCreateCredentialRequest(
+    request: BeginCreateCredentialRequest,
+    cancellationSignal: CancellationSignal,
+    callback: OutcomeReceiver<BeginCreateCredentialResponse, CreateCredentialException>,
+  ) {
+    val response: BeginCreateCredentialResponse? = processCreateCredentialRequest(request)
+    if (response != null) {
+      callback.onResult(response)
+    } else {
+      callback.onError(CreateCredentialUnknownException())
+    }
+  }
+
+  override fun onBeginGetCredentialRequest(
+    request: BeginGetCredentialRequest,
+    cancellationSignal: CancellationSignal,
+    callback: OutcomeReceiver<BeginGetCredentialResponse, GetCredentialException>
+  ) {}
+
+  override fun onClearCredentialStateRequest(
+    request: ProviderClearCredentialStateRequest,
+    cancellationSignal: CancellationSignal,
+    callback: OutcomeReceiver<Void?, ClearCredentialException>,
+  ) {}
+
+  private fun processCreateCredentialRequest(
+    request: BeginCreateCredentialRequest
+  ): BeginCreateCredentialResponse? {
+    return when (request) {
+      is BeginCreatePublicKeyCredentialRequest -> {
+        // Request is passkey type
+        handleCreatePasskeyQuery(request)
+      }
+      // Request not supported
+      else -> null
+    }
+  }
+
+  private fun handleCreatePasskeyQuery(
+    @Suppress("UNUSED_PARAMETER") request: BeginCreatePublicKeyCredentialRequest
+  ): BeginCreateCredentialResponse {
+    val createEntries: MutableList<CreateEntry> = mutableListOf()
+    println(request.requestJson)
+    createEntries.add(
+      CreateEntry(
+        DEFAULT_ACCOUNT_NAME,
+        createNewPendingIntent(DEFAULT_ACCOUNT_NAME, CREATE_PASSKEY_INTENT_ACTION)
+      )
+    )
+
+    return BeginCreateCredentialResponse(createEntries)
+  }
+
+  private fun createNewPendingIntent(accountId: String, action: String): PendingIntent {
+    val intent = Intent(action).setPackage(packageName)
+    // Add your local account ID as an extra to the intent, so that when
+    // user selects this entry, the credential can be saved to this
+    // account
+    intent.putExtra(EXTRA_KEY_ACCOUNT_ID, accountId)
+
+    return PendingIntent.getActivity(
+      applicationContext,
+      REQUEST_CODE,
+      intent,
+      (PendingIntent.FLAG_MUTABLE or PendingIntent.FLAG_UPDATE_CURRENT),
+    )
+  }
+
+  internal companion object {
+
+    // These intent actions are specified for corresponding activities
+    // that are to be invoked through the PendingIntent(s)
+    const val REQUEST_CODE = 1010101
+    const val EXTRA_KEY_ACCOUNT_ID = "EXTRA_KEY_ACCOUNT_ID"
+    const val DEFAULT_ACCOUNT_NAME = "Default Password Store"
+    const val CREATE_PASSKEY_INTENT_ACTION = "app.passwordstore.CREATE_PASSKEY"
+    const val GET_PASSKEY_INTENT_ACTION = "PACKAGE_NAME.GET_PASSKEY"
+  }
+}
diff --git a/passkeys/src/main/res/drawable/ic_launcher_background.xml b/passkeys/src/main/res/drawable/ic_launcher_background.xml
deleted file mode 100644
index 140f8294..00000000
--- a/passkeys/src/main/res/drawable/ic_launcher_background.xml
+++ /dev/null
@@ -1,170 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-  android:width="108dp"
-  android:height="108dp"
-  android:viewportWidth="108"
-  android:viewportHeight="108">
-  <path
-    android:fillColor="#3DDC84"
-    android:pathData="M0,0h108v108h-108z" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M9,0L9,108"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M19,0L19,108"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M29,0L29,108"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M39,0L39,108"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M49,0L49,108"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M59,0L59,108"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M69,0L69,108"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M79,0L79,108"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M89,0L89,108"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M99,0L99,108"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M0,9L108,9"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M0,19L108,19"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M0,29L108,29"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M0,39L108,39"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M0,49L108,49"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M0,59L108,59"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M0,69L108,69"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M0,79L108,79"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M0,89L108,89"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M0,99L108,99"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M19,29L89,29"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M19,39L89,39"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M19,49L89,49"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M19,59L89,59"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M19,69L89,69"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M19,79L89,79"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M29,19L29,89"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M39,19L39,89"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M49,19L49,89"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M59,19L59,89"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M69,19L69,89"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-  <path
-    android:fillColor="#00000000"
-    android:pathData="M79,19L79,89"
-    android:strokeWidth="0.8"
-    android:strokeColor="#33FFFFFF" />
-</vector>
diff --git a/passkeys/src/main/res/drawable/ic_launcher_foreground.xml b/passkeys/src/main/res/drawable/ic_launcher_foreground.xml
deleted file mode 100644
index 5c3bfcd6..00000000
--- a/passkeys/src/main/res/drawable/ic_launcher_foreground.xml
+++ /dev/null
@@ -1,30 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-  xmlns:aapt="http://schemas.android.com/aapt"
-  android:width="108dp"
-  android:height="108dp"
-  android:viewportWidth="108"
-  android:viewportHeight="108">
-  <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
-    <aapt:attr name="android:fillColor">
-      <gradient
-        android:endX="85.84757"
-        android:endY="92.4963"
-        android:startX="42.9492"
-        android:startY="49.59793"
-        android:type="linear">
-        <item
-          android:color="#44000000"
-          android:offset="0.0" />
-        <item
-          android:color="#00000000"
-          android:offset="1.0" />
-      </gradient>
-    </aapt:attr>
-  </path>
-  <path
-    android:fillColor="#FFFFFF"
-    android:fillType="nonZero"
-    android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
-    android:strokeWidth="1"
-    android:strokeColor="#00000000" />
-</vector>
\ No newline at end of file
diff --git a/passkeys/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/passkeys/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
deleted file mode 100644
index 5ad9ce15..00000000
--- a/passkeys/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-  <background android:drawable="@drawable/ic_launcher_background" />
-  <foreground android:drawable="@drawable/ic_launcher_foreground" />
-  <monochrome android:drawable="@drawable/ic_launcher_foreground" />
-</adaptive-icon>
\ No newline at end of file
diff --git a/passkeys/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/passkeys/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
deleted file mode 100644
index 5ad9ce15..00000000
--- a/passkeys/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-  <background android:drawable="@drawable/ic_launcher_background" />
-  <foreground android:drawable="@drawable/ic_launcher_foreground" />
-  <monochrome android:drawable="@drawable/ic_launcher_foreground" />
-</adaptive-icon>
\ No newline at end of file
diff --git a/passkeys/src/main/res/mipmap-hdpi/ic_launcher.webp b/passkeys/src/main/res/mipmap-hdpi/ic_launcher.webp
deleted file mode 100644
index c209e78e..00000000
--- a/passkeys/src/main/res/mipmap-hdpi/ic_launcher.webp
+++ /dev/null
diff --git a/passkeys/src/main/res/mipmap-hdpi/ic_launcher_round.webp b/passkeys/src/main/res/mipmap-hdpi/ic_launcher_round.webp
deleted file mode 100644
index b2dfe3d1..00000000
--- a/passkeys/src/main/res/mipmap-hdpi/ic_launcher_round.webp
+++ /dev/null
diff --git a/passkeys/src/main/res/mipmap-mdpi/ic_launcher.webp b/passkeys/src/main/res/mipmap-mdpi/ic_launcher.webp
deleted file mode 100644
index 4f0f1d64..00000000
--- a/passkeys/src/main/res/mipmap-mdpi/ic_launcher.webp
+++ /dev/null
diff --git a/passkeys/src/main/res/mipmap-mdpi/ic_launcher_round.webp b/passkeys/src/main/res/mipmap-mdpi/ic_launcher_round.webp
deleted file mode 100644
index 62b611da..00000000
--- a/passkeys/src/main/res/mipmap-mdpi/ic_launcher_round.webp
+++ /dev/null
diff --git a/passkeys/src/main/res/mipmap-xhdpi/ic_launcher.webp b/passkeys/src/main/res/mipmap-xhdpi/ic_launcher.webp
deleted file mode 100644
index 948a3070..00000000
--- a/passkeys/src/main/res/mipmap-xhdpi/ic_launcher.webp
+++ /dev/null
diff --git a/passkeys/src/main/res/mipmap-xhdpi/ic_launcher_round.webp b/passkeys/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
deleted file mode 100644
index 1b9a6956..00000000
--- a/passkeys/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
+++ /dev/null
diff --git a/passkeys/src/main/res/mipmap-xxhdpi/ic_launcher.webp b/passkeys/src/main/res/mipmap-xxhdpi/ic_launcher.webp
deleted file mode 100644
index 28d4b77f..00000000
--- a/passkeys/src/main/res/mipmap-xxhdpi/ic_launcher.webp
+++ /dev/null
diff --git a/passkeys/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp b/passkeys/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
deleted file mode 100644
index 9287f508..00000000
--- a/passkeys/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
+++ /dev/null
diff --git a/passkeys/src/main/res/mipmap-xxxhdpi/ic_launcher.webp b/passkeys/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
deleted file mode 100644
index aa7d6427..00000000
--- a/passkeys/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
+++ /dev/null
diff --git a/passkeys/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp b/passkeys/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
deleted file mode 100644
index 9126ae37..00000000
--- a/passkeys/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
+++ /dev/null
diff --git a/passkeys/src/main/res/values-night/themes.xml b/passkeys/src/main/res/values-night/themes.xml
deleted file mode 100644
index f0a927fb..00000000
--- a/passkeys/src/main/res/values-night/themes.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<resources xmlns:tools="http://schemas.android.com/tools">
-  <!-- Base application theme. -->
-  <style name="Theme.APS" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
-    <!-- Primary brand color. -->
-    <item name="colorPrimary">@color/purple_200</item>
-    <item name="colorPrimaryVariant">@color/purple_700</item>
-    <item name="colorOnPrimary">@color/black</item>
-    <!-- Secondary brand color. -->
-    <item name="colorSecondary">@color/teal_200</item>
-    <item name="colorSecondaryVariant">@color/teal_200</item>
-    <item name="colorOnSecondary">@color/black</item>
-    <!-- Status bar color. -->
-    <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
-    <!-- Customize your theme here. -->
-  </style>
-</resources>
\ No newline at end of file
diff --git a/passkeys/src/main/res/values/colors.xml b/passkeys/src/main/res/values/colors.xml
deleted file mode 100644
index 09837df6..00000000
--- a/passkeys/src/main/res/values/colors.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-  <color name="purple_200">#FFBB86FC</color>
-  <color name="purple_500">#FF6200EE</color>
-  <color name="purple_700">#FF3700B3</color>
-  <color name="teal_200">#FF03DAC5</color>
-  <color name="teal_700">#FF018786</color>
-  <color name="black">#FF000000</color>
-  <color name="white">#FFFFFFFF</color>
-</resources>
\ No newline at end of file
diff --git a/passkeys/src/main/res/values/strings.xml b/passkeys/src/main/res/values/strings.xml
deleted file mode 100644
index 485ed028..00000000
--- a/passkeys/src/main/res/values/strings.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<resources>
-  <string name="app_name">passkeys</string>
-</resources>
\ No newline at end of file
diff --git a/passkeys/src/main/res/values/themes.xml b/passkeys/src/main/res/values/themes.xml
deleted file mode 100644
index 4210ce7d..00000000
--- a/passkeys/src/main/res/values/themes.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<resources xmlns:tools="http://schemas.android.com/tools">
-  <!-- Base application theme. -->
-  <style name="Theme.APS" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
-    <!-- Primary brand color. -->
-    <item name="colorPrimary">@color/purple_500</item>
-    <item name="colorPrimaryVariant">@color/purple_700</item>
-    <item name="colorOnPrimary">@color/white</item>
-    <!-- Secondary brand color. -->
-    <item name="colorSecondary">@color/teal_200</item>
-    <item name="colorSecondaryVariant">@color/teal_700</item>
-    <item name="colorOnSecondary">@color/black</item>
-    <!-- Status bar color. -->
-    <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
-    <!-- Customize your theme here. -->
-  </style>
-</resources>
\ No newline at end of file
diff --git a/passkeys/src/main/res/xml/provider.xml b/passkeys/src/main/res/xml/provider.xml
new file mode 100644
index 00000000..99d41c9b
--- /dev/null
+++ b/passkeys/src/main/res/xml/provider.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<credential-provider xmlns:android="http://schemas.android.com/apk/res/android">
+  <capabilities>
+    <capability name="android.credentials.TYPE_PASSWORD_CREDENTIAL" />
+    <capability name="androidx.credentials.TYPE_PUBLIC_KEY_CREDENTIAL" />
+  </capabilities>
+</credential-provider>
\ No newline at end of file