Remove app-core module

Less confusion
2025-09-06 06:36:58 +00:00 · 2019-03-08 10:19:22 -05:00
parent cf65169c99
commit de5c902fdb
37 changed files with 17 additions and 57 deletions
@@ -0,0 +1,123 @@
+package com.topjohnwu.magisk.utils;
+
+import android.annotation.TargetApi;
+import android.app.KeyguardManager;
+import android.hardware.fingerprint.FingerprintManager;
+import android.os.Build;
+import android.os.CancellationSignal;
+import android.security.keystore.KeyGenParameterSpec;
+import android.security.keystore.KeyPermanentlyInvalidatedException;
+import android.security.keystore.KeyProperties;
+
+import com.topjohnwu.magisk.App;
+import com.topjohnwu.magisk.Config;
+import com.topjohnwu.magisk.Const;
+
+import java.security.KeyStore;
+
+import javax.crypto.Cipher;
+import javax.crypto.KeyGenerator;
+import javax.crypto.SecretKey;
+
+@TargetApi(Build.VERSION_CODES.M)
+public abstract class FingerprintHelper {
+
+    private FingerprintManager manager;
+    private Cipher cipher;
+    private CancellationSignal cancel;
+
+    public static boolean useFingerprint() {
+        boolean fp = Config.get(Config.Key.SU_FINGERPRINT);
+        if (fp && !canUseFingerprint()) {
+            Config.set(Config.Key.SU_FINGERPRINT, false);
+            fp = false;
+        }
+        return fp;
+    }
+
+    public static boolean canUseFingerprint() {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M)
+            return false;
+        KeyguardManager km = App.self.getSystemService(KeyguardManager.class);
+        FingerprintManager fm = App.self.getSystemService(FingerprintManager.class);
+        return km.isKeyguardSecure() && fm != null && fm.isHardwareDetected() && fm.hasEnrolledFingerprints();
+    }
+
+    protected FingerprintHelper() throws Exception {
+        KeyStore keyStore = KeyStore.getInstance("AndroidKeyStore");
+        manager = App.self.getSystemService(FingerprintManager.class);
+        cipher = Cipher.getInstance(KeyProperties.KEY_ALGORITHM_AES + "/"
+                + KeyProperties.BLOCK_MODE_CBC + "/"
+                + KeyProperties.ENCRYPTION_PADDING_PKCS7);
+        keyStore.load(null);
+        SecretKey key = (SecretKey) keyStore.getKey(Const.SU_KEYSTORE_KEY, null);
+        if (key == null) {
+            key = generateKey();
+        }
+        try {
+            cipher.init(Cipher.ENCRYPT_MODE, key);
+        } catch (KeyPermanentlyInvalidatedException e) {
+            // Only happens on Marshmallow
+            key = generateKey();
+            cipher.init(Cipher.ENCRYPT_MODE, key);
+        }
+    }
+
+    public abstract void onAuthenticationError(int errorCode, CharSequence errString);
+
+    public abstract void onAuthenticationHelp(int helpCode, CharSequence helpString);
+
+    public abstract void onAuthenticationSucceeded(FingerprintManager.AuthenticationResult result);
+
+    public abstract void onAuthenticationFailed();
+
+    public void authenticate() {
+        cancel = new CancellationSignal();
+        FingerprintManager.CryptoObject cryptoObject = new FingerprintManager.CryptoObject(cipher);
+        manager.authenticate(cryptoObject, cancel, 0, new Callback(), null);
+    }
+
+    public void cancel() {
+        if (cancel != null)
+            cancel.cancel();
+    }
+
+    private SecretKey generateKey() throws Exception {
+        KeyGenerator keygen = KeyGenerator
+                .getInstance(KeyProperties.KEY_ALGORITHM_AES, "AndroidKeyStore");
+        KeyGenParameterSpec.Builder builder = new KeyGenParameterSpec.Builder(
+                Const.SU_KEYSTORE_KEY,
+                KeyProperties.PURPOSE_ENCRYPT | KeyProperties.PURPOSE_DECRYPT)
+                .setBlockModes(KeyProperties.BLOCK_MODE_CBC)
+                .setUserAuthenticationRequired(true)
+                .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_PKCS7);
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            builder.setInvalidatedByBiometricEnrollment(false);
+        }
+        keygen.init(builder.build());
+        return keygen.generateKey();
+    }
+
+    private class Callback extends FingerprintManager.AuthenticationCallback {
+        @Override
+        public void onAuthenticationError(int errorCode, CharSequence errString) {
+            FingerprintHelper.this.onAuthenticationError(errorCode, errString);
+        }
+
+        @Override
+        public void onAuthenticationHelp(int helpCode, CharSequence helpString) {
+            FingerprintHelper.this.onAuthenticationHelp(helpCode, helpString);
+        }
+
+        @Override
+        public void onAuthenticationSucceeded(FingerprintManager.AuthenticationResult result) {
+            FingerprintHelper.this.onAuthenticationSucceeded(result);
+        }
+
+        @Override
+        public void onAuthenticationFailed() {
+            FingerprintHelper.this.onAuthenticationFailed();
+        }
+    }
+}