wip: experimenting with ios autofill provider extension

authpass · Feb 19, 2024 · 7a15662 · 7a15662
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diff --git a/authpass/ios/AuthPassAutofill/AuthPassAutofill.entitlements b/authpass/ios/AuthPassAutofill/AuthPassAutofill.entitlements
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.developer.authentication-services.autofill-credential-provider</key>
+	<true/>
+	<key>com.apple.security.application-groups</key>
+	<array>
+		<string>group.design.codeux.authpass</string>
+	</array>
+</dict>
+</plist>
diff --git a/authpass/ios/AuthPassAutofill/Base.lproj/MainInterface.storyboard b/authpass/ios/AuthPassAutofill/Base.lproj/MainInterface.storyboard
@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14092" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Xki-Si-B7m">
+    <device id="retina4_7" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14081.1"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Credential Provider View Controller-->
+        <scene sceneID="Uma-9u-xWV">
+            <objects>
+                <viewController id="Xki-Si-B7m" customClass="CredentialProviderViewController" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="BuU-Ak-iZz">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <navigationBar contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="3wq-kG-lGu">
+                                <rect key="frame" x="0.0" y="20" width="375" height="44"/>
+                                <items>
+                                    <navigationItem id="cbj-pk-SYj">
+                                        <barButtonItem key="leftBarButtonItem" systemItem="cancel" id="bEZ-MG-jDy">
+                                            <connections>
+                                                <action selector="cancel:" destination="Xki-Si-B7m" id="6ap-3Q-iEX"/>
+                                            </connections>
+                                        </barButtonItem>
+                                    </navigationItem>
+                                </items>
+                            </navigationBar>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="a7v-ug-QzG">
+                                <rect key="frame" x="87.5" y="327" width="199" height="33"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <state key="normal" title="Return Example Password"/>
+                                <connections>
+                                    <action selector="passwordSelected:" destination="Xki-Si-B7m" eventType="touchUpInside" id="ODd-lr-mud"/>
+                                </connections>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <constraints>
+                            <constraint firstItem="Ky8-vK-JVj" firstAttribute="top" secondItem="3wq-kG-lGu" secondAttribute="top" id="BIN-jb-uNd"/>
+                            <constraint firstItem="3wq-kG-lGu" firstAttribute="width" secondItem="BuU-Ak-iZz" secondAttribute="width" id="UkD-v4-BcH"/>
+                            <constraint firstItem="a7v-ug-QzG" firstAttribute="centerY" secondItem="Ky8-vK-JVj" secondAttribute="centerY" id="fAC-0v-NFE"/>
+                            <constraint firstItem="a7v-ug-QzG" firstAttribute="centerX" secondItem="3wq-kG-lGu" secondAttribute="centerX" id="io1-ZS-gwn"/>
+                            <constraint firstItem="3wq-kG-lGu" firstAttribute="centerX" secondItem="BuU-Ak-iZz" secondAttribute="centerX" id="rtV-5c-0bl"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="Ky8-vK-JVj"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="RwB-HB-TSk" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>
diff --git a/authpass/ios/AuthPassAutofill/CredentialProviderViewController.swift b/authpass/ios/AuthPassAutofill/CredentialProviderViewController.swift
@@ -0,0 +1,101 @@
+//
+//  CredentialProviderViewController.swift
+//  AuthPassAutofill
+//
+//  Created by Herbert Poul on 19.02.24.
+//  Copyright © 2024 The Chromium Authors. All rights reserved.
+//
+
+import AuthenticationServices
+import Flutter
+
+
+class CredentialProviderViewController: ASCredentialProviderViewController {
+
+    lazy var flutterEngine = FlutterEngine(name: "my flutter engine", project: nil, allowHeadlessExecution: false)
+
+    override func viewDidLoad() {
+        showFlutter()
+    }
+
+    func showFlutter() {
+        print("CredentialProviderViewController calling flutterEngine.run()")
+        flutterEngine.run(withEntrypoint: nil, initialRoute: "/autofill")
+        print("CredentialProviderViewController flutterEngine.run() finished.")
+        GeneratedPluginRegistrant.register(with: flutterEngine)
+        let flutterViewController = FlutterViewController(engine: flutterEngine, nibName: nil, bundle: nil)
+        flutterViewController.isViewOpaque = false
+        addChild(flutterViewController)
+        view.addSubview(flutterViewController.view)
+        flutterViewController.view.frame = view.bounds
+        self.view.layoutSubviews()
+        print("CredentialProviderViewController showing flutter view.. \(flutterViewController.isDisplayingFlutterUI)")
+    }
+
+    override func viewWillAppear(_ animated: Bool) {
+        print("CredentialProviderViewController viewWillAppear(\(animated)) -- \(flutterEngine.viewController?.isDisplayingFlutterUI)")
+        super.viewWillAppear(animated)
+    }
+
+    override func viewDidAppear(_ animated: Bool) {
+        print("CredentialProviderViewController viewDidAppear(\(animated)) \(flutterEngine.viewController?.isDisplayingFlutterUI)")
+        super.viewDidAppear(animated)
+    }
+
+    override func viewIsAppearing(_ animated: Bool) {
+        print("CredentialProviderViewController viewIsAppearing(\(animated)) \(flutterEngine.viewController?.isDisplayingFlutterUI)")
+        super.viewIsAppearing(animated)
+    }
+
+    override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
+        print("CredentialProviderViewController viewWillTransition to: \(size)")
+        super.viewWillTransition(to: size, with: coordinator)
+    }
+
+    /*
+     Prepare your UI to list available credentials for the user to choose from. The items in
+     'serviceIdentifiers' describe the service the user is logging in to, so your extension can
+     prioritize the most relevant credentials in the list.
+    */
+    override func prepareCredentialList(for serviceIdentifiers: [ASCredentialServiceIdentifier]) {
+    }
+
+    /*
+     Implement this method if your extension supports showing credentials in the QuickType bar.
+     When the user selects a credential from your app, this method will be called with the
+     ASPasswordCredentialIdentity your app has previously saved to the ASCredentialIdentityStore.
+     Provide the password by completing the extension request with the associated ASPasswordCredential.
+     If using the credential would require showing custom UI for authenticating the user, cancel
+     the request with error code ASExtensionError.userInteractionRequired.
+
+    override func provideCredentialWithoutUserInteraction(for credentialIdentity: ASPasswordCredentialIdentity) {
+        let databaseIsUnlocked = true
+        if (databaseIsUnlocked) {
+            let passwordCredential = ASPasswordCredential(user: "j_appleseed", password: "apple1234")
+            self.extensionContext.completeRequest(withSelectedCredential: passwordCredential, completionHandler: nil)
+        } else {
+            self.extensionContext.cancelRequest(withError: NSError(domain: ASExtensionErrorDomain, code:ASExtensionError.userInteractionRequired.rawValue))
+        }
+    }
+    */
+
+    /*
+     Implement this method if provideCredentialWithoutUserInteraction(for:) can fail with
+     ASExtensionError.userInteractionRequired. In this case, the system may present your extension's
+     UI and call this method. Show appropriate UI for authenticating the user then provide the password
+     by completing the extension request with the associated ASPasswordCredential.
+
+    override func prepareInterfaceToProvideCredential(for credentialIdentity: ASPasswordCredentialIdentity) {
+    }
+    */
+
+    @IBAction func cancel(_ sender: AnyObject?) {
+        self.extensionContext.cancelRequest(withError: NSError(domain: ASExtensionErrorDomain, code: ASExtensionError.userCanceled.rawValue))
+    }
+
+    @IBAction func passwordSelected(_ sender: AnyObject?) {
+        let passwordCredential = ASPasswordCredential(user: "j_appleseed", password: "apple1234")
+        self.extensionContext.completeRequest(withSelectedCredential: passwordCredential, completionHandler: nil)
+    }
+
+}
diff --git a/authpass/ios/AuthPassAutofill/Info.plist b/authpass/ios/AuthPassAutofill/Info.plist
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>NSExtension</key>
+	<dict>
+		<key>NSExtensionPrincipalClass</key>
+		<string>AuthPassAutofill.CredentialProviderViewController</string>
+		<key>NSExtensionPointIdentifier</key>
+		<string>com.apple.authentication-services-credential-provider-ui</string>
+	</dict>
+</dict>
+</plist>
diff --git a/authpass/ios/AuthPassAutofill/Runner-Bridging-Header.h b/authpass/ios/AuthPassAutofill/Runner-Bridging-Header.h
@@ -0,0 +1 @@
+#import "GeneratedPluginRegistrant.h"