Sign release zips with release-key.jks

Close #408

app/src/full/java/com/topjohnwu/magisk/asyncs/PatchAPK.java

@@ -11,11 +11,11 @@ import com.topjohnwu.magisk.MagiskManager;
 import com.topjohnwu.magisk.R;
 import com.topjohnwu.magisk.utils.RootUtils;
 import com.topjohnwu.magisk.utils.Utils;
-import com.topjohnwu.magisk.utils.ZipUtils;
 import com.topjohnwu.superuser.ShellUtils;
 import com.topjohnwu.superuser.io.SuFile;
 import com.topjohnwu.superuser.io.SuFileOutputStream;
 import com.topjohnwu.utils.JarMap;
+import com.topjohnwu.utils.SignAPK;
 
 import java.security.SecureRandom;
 import java.util.jar.JarEntry;
@@ -99,7 +99,7 @@ public class PatchAPK {
             JarMap apk = new JarMap(mm.getPackageCodePath());
             if (!patchPackageID(apk, Const.ORIG_PKG_NAME, pkg))
                 return false;
-            ZipUtils.signZip(apk, new SuFileOutputStream(repack));
+            SignAPK.sign(apk, new SuFileOutputStream(repack));
         } catch (Exception e) {
             return false;
         }

app/src/full/java/com/topjohnwu/magisk/receivers/ManagerUpdate.java

@@ -9,8 +9,8 @@ import android.os.AsyncTask;
 import com.topjohnwu.magisk.Const;
 import com.topjohnwu.magisk.asyncs.PatchAPK;
 import com.topjohnwu.magisk.utils.Download;
-import com.topjohnwu.magisk.utils.ZipUtils;
 import com.topjohnwu.utils.JarMap;
+import com.topjohnwu.utils.SignAPK;
 
 import java.io.BufferedOutputStream;
 import java.io.File;
@@ -37,7 +37,7 @@ public class ManagerUpdate extends BroadcastReceiver {
                     try {
                         JarMap apk = new JarMap(orig);
                         PatchAPK.patchPackageID(apk, Const.ORIG_PKG_NAME, context.getPackageName());
-                        ZipUtils.signZip(apk, new BufferedOutputStream(new FileOutputStream(patch)));
+                        SignAPK.sign(apk, new BufferedOutputStream(new FileOutputStream(patch)));
                         super.onDownloadDone(context, Uri.fromFile(new File(patch)));
                     } catch (Exception ignored) { }
                 });

app/src/full/java/com/topjohnwu/magisk/utils/ZipUtils.java

@@ -59,11 +59,7 @@ public class ZipUtils {
     public static void signZip(File input, File output) throws Exception {
         try (JarMap map = new JarMap(input, false);
              BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(output))) {
-            signZip(map, out);
+            SignAPK.sign(map, out);
         }
     }
-
-    public static void signZip(JarMap input, OutputStream output) throws Exception {
-        SignAPK.signZip(null, null, input, output);
-    }
 }

build.py

@@ -164,6 +164,27 @@ def build_binary(args):
 			error('Build binaries failed!')
 		collect_binary()
 
+def sign_zip(unsigned, output, release):
+	signer_name = 'zipsigner-3.0.jar'
+	jarsigner = os.path.join('utils', 'build', 'libs', signer_name)
+
+	if not os.path.exists(jarsigner):
+		header('* Building ' + signer_name)
+		proc = subprocess.run('{} utils:shadowJar'.format(gradlew), shell=True, stdout=STDOUT)
+		if proc.returncode != 0:
+			error('Build {} failed!'.format(signer_name))
+
+	header('* Signing Zip')
+
+	if release:
+		proc = subprocess.run(['java', '-jar', jarsigner, 'release-key.jks',
+			config['keyStorePass'], config['keyAlias'], config['keyPass'], unsigned, output])
+	else:
+		proc = subprocess.run(['java', '-jar', jarsigner, unsigned, output])
+
+	if proc.returncode != 0:
+		error('Signing zip failed!')
+
 def sign_apk(source, target):
 	# Find the latest build tools
 	build_tool = os.path.join(os.environ['ANDROID_HOME'], 'build-tools',
@@ -195,9 +216,6 @@ def build_apk(args):
 	cp(source, target)
 
 	if args.release:
-		if not os.path.exists('release-key.jks'):
-			error('Please generate a java keystore and place it in \'release-key.jks\'')
-
 		proc = subprocess.run('{} app:assembleRelease'.format(gradlew), shell=True, stdout=STDOUT)
 		if proc.returncode != 0:
 			error('Build Magisk Manager failed!')
@@ -337,7 +355,7 @@ def zip_main(args):
 
 	output = os.path.join(config['outdir'], 'Magisk-v{}.zip'.format(config['version']) if config['prettyName'] else 
 		'magisk-release.zip' if args.release else 'magisk-debug.zip')
-	sign_adjust_zip(unsigned, output)
+	sign_zip(unsigned, output, args.release)
 	header('Output: ' + output)
 
 def zip_uninstaller(args):
@@ -381,27 +399,9 @@ def zip_uninstaller(args):
 
 	output = os.path.join(config['outdir'], 'Magisk-uninstaller-{}.zip'.format(datetime.datetime.now().strftime('%Y%m%d')) 
 		if config['prettyName'] else 'magisk-uninstaller.zip')
-	sign_adjust_zip(unsigned, output)
+	sign_zip(unsigned, output, args.release)
 	header('Output: ' + output)
 
-def sign_adjust_zip(unsigned, output):
-	signer_name = 'zipsigner-2.2.jar'
-	jarsigner = os.path.join('utils', 'build', 'libs', signer_name)
-
-	if not os.path.exists(jarsigner):
-		header('* Building ' + signer_name)
-		proc = subprocess.run('{} utils:shadowJar'.format(gradlew), shell=True, stdout=STDOUT)
-		if proc.returncode != 0:
-			error('Build {} failed!'.format(signer_name))
-
-	header('* Signing Zip')
-
-	signed = tempfile.mkstemp()[1]
-
-	proc = subprocess.run(['java', '-jar', jarsigner, unsigned, output])
-	if proc.returncode != 0:
-		error('Signing zip failed!')
-
 def cleanup(args):
 	if len(args.target) == 0:
 		args.target = ['native', 'java']
@@ -463,7 +463,7 @@ apk_parser.set_defaults(func=build_apk)
 snet_parser = subparsers.add_parser('snet', help='build snet extention for Magisk Manager')
 snet_parser.set_defaults(func=build_snet)
 
-zip_parser = subparsers.add_parser('zip', help='zip and sign Magisk into a flashable zip')
+zip_parser = subparsers.add_parser('zip', help='zip Magisk into a flashable zip')
 zip_parser.set_defaults(func=zip_main)
 
 uninstaller_parser = subparsers.add_parser('uninstaller', help='create flashable uninstaller')
@@ -478,5 +478,7 @@ if len(sys.argv) == 1:
 	sys.exit(1)
 
 args = parser.parse_args()
+if args.release and not os.path.exists('release-key.jks'):
+	error('Please generate a java keystore and place it in \'release-key.jks\'')
 STDOUT = None if args.verbose else subprocess.DEVNULL
 args.func(args)

config.prop.sample

@@ -8,7 +8,8 @@ outdir=out
 # The default output names are magisk-${release/debug/uninstaller}.zip
 prettyName=false
 
-# These pwds are passed to apksigner for release-key.jks. Necessary when building release apks
+# Only used when building with release flag
+# These passwords are used along with release-key.jks to sign APKs and zips
 # keyPass is the pwd for the specified keyAlias
 keyStorePass=
 keyAlias=

utils/build.gradle

@@ -15,7 +15,7 @@ jar {
 shadowJar {
     baseName = 'zipsigner'
     classifier = null
-    version = 2.2
+    version = 3.0
 }
 
 buildscript {

utils/src/main/java/com/topjohnwu/utils/ReusableInputStream.java

@@ -1,28 +0,0 @@
-package com.topjohnwu.utils;
-
-import java.io.BufferedInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-
-public class ReusableInputStream extends BufferedInputStream {
-
-    public ReusableInputStream(InputStream in) {
-        super(in);
-        mark(Integer.MAX_VALUE);
-    }
-
-    public ReusableInputStream(InputStream in, int size) {
-        super(in, size);
-        mark(Integer.MAX_VALUE);
-    }
-
-    @Override
-    public void close() throws IOException {
-        /* Reset at close so we can reuse it */
-        reset();
-    }
-
-    public void destroy() throws IOException {
-        super.close();
-    }
-}

utils/src/main/java/com/topjohnwu/utils/SignAPK.java

@@ -18,7 +18,6 @@ import org.bouncycastle.operator.jcajce.JcaContentSignerBuilder;
 import org.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder;
 import org.bouncycastle.util.encoders.Base64;
 
-import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.File;
@@ -32,6 +31,7 @@ import java.io.PrintStream;
 import java.io.RandomAccessFile;
 import java.security.DigestOutputStream;
 import java.security.GeneralSecurityException;
+import java.security.KeyStore;
 import java.security.MessageDigest;
 import java.security.PrivateKey;
 import java.security.Provider;
@@ -60,7 +60,7 @@ public class SignAPK {
     private static final String CERT_SF_NAME = "META-INF/CERT.SF";
     private static final String CERT_SIG_NAME = "META-INF/CERT.%s";
 
-    public static Provider sBouncyCastleProvider;
+    private static Provider sBouncyCastleProvider;
     // bitmasks for which hash algorithms we need the manifest to include.
     private static final int USE_SHA1 = 1;
     private static final int USE_SHA256 = 2;
@@ -70,59 +70,61 @@ public class SignAPK {
         Security.insertProviderAt(sBouncyCastleProvider, 1);
     }
 
-    public static void signZip(InputStream cert, InputStream key,
+    public static void sign(JarMap input, OutputStream output) throws Exception {
-                               JarMap input, OutputStream output) throws Exception {
+        sign(SignAPK.class.getResourceAsStream("/keys/testkey.x509.pem"),
+             SignAPK.class.getResourceAsStream("/keys/testkey.pk8"), input, output);
+    }
+
+    public static void sign(InputStream certIs, InputStream keyIs,
+                            JarMap input, OutputStream output) throws Exception {
+        X509Certificate cert = CryptoUtils.readCertificate(certIs);
+        PrivateKey key = CryptoUtils.readPrivateKey(keyIs);
+        sign(cert, key, input, output);
+    }
+
+    public static void sign(InputStream jks, String keyStorePass, String alias, String keyPass,
+                            JarMap input, OutputStream output) throws Exception {
+        KeyStore ks = KeyStore.getInstance("JKS");
+        ks.load(jks, keyStorePass.toCharArray());
+        KeyStore.ProtectionParameter prot = new KeyStore.PasswordProtection(keyPass.toCharArray());
+        X509Certificate cert = (X509Certificate) ks.getCertificate(alias);
+        PrivateKey key = ((KeyStore.PrivateKeyEntry) ks.getEntry(alias, prot)).getPrivateKey();
+        sign(cert, key, input, output);
+    }
+
+    private static void sign(X509Certificate cert, PrivateKey key,
+                             JarMap input, OutputStream output) throws Exception {
         File temp1 = File.createTempFile("signAPK", null);
         File temp2 = File.createTempFile("signAPK", null);
-        if (cert == null) {
-            cert = SignAPK.class.getResourceAsStream("/keys/testkey.x509.pem");
-        }
-        if (key == null) {
-            key = SignAPK.class.getResourceAsStream("/keys/testkey.pk8");
-        }
-
-        ReusableInputStream c = new ReusableInputStream(cert);
-        ReusableInputStream k = new ReusableInputStream(key);
 
         try {
             try (OutputStream out = new BufferedOutputStream(new FileOutputStream(temp1))) {
-                signZip(c, k, input, out, false);
+                sign(cert, key, input, out, false);
             }
 
             ZipAdjust.adjust(temp1, temp2);
 
             try (JarMap map = new JarMap(temp2, false)) {
-                signZip(c, k, map, output, true);
+                sign(cert, key, map, output, true);
             }
         } finally {
             temp1.delete();
             temp2.delete();
-            c.destroy();
-            k.destroy();
         }
     }
 
-    public static void signZip(InputStream cert, InputStream key,
+    private static void sign(X509Certificate cert, PrivateKey key,
-                               JarMap input, OutputStream output, boolean minSign) throws Exception {
+                             JarMap input, OutputStream output, boolean minSign) throws Exception {
-        int alignment = 4;
         int hashes = 0;
-        if (cert == null) {
+        hashes |= getDigestAlgorithm(cert);
-            cert = SignAPK.class.getResourceAsStream("/keys/testkey.x509.pem");
-        }
-        X509Certificate certificate = CryptoUtils.readCertificate(cert);
-        hashes |= getDigestAlgorithm(certificate);
 
         // Set the ZIP file timestamp to the starting valid time
         // of the 0th certificate plus one hour (to match what
         // we've historically done).
-        long timestamp = certificate.getNotBefore().getTime() + 3600L * 1000;
+        long timestamp = cert.getNotBefore().getTime() + 3600L * 1000;
-        if (key == null) {
-            key = SignAPK.class.getResourceAsStream("/keys/testkey.pk8");
-        }
-        PrivateKey privateKey = CryptoUtils.readPrivateKey(key);
 
         if (minSign) {
-            signWholeFile(input.getFile(), certificate, privateKey, output);
+            signWholeFile(input.getFile(), cert, key, output);
         } else {
             JarOutputStream outputJar = new JarOutputStream(output);
             // For signing .apks, use the maximum compression to make
@@ -133,8 +135,8 @@ public class SignAPK {
             // (~0.1% on full OTA packages I tested).
             outputJar.setLevel(9);
             Manifest manifest = addDigestsToManifest(input, hashes);
-            copyFiles(manifest, input, outputJar, timestamp, alignment);
+            copyFiles(manifest, input, outputJar, timestamp, 4);
-            signFile(manifest, input, certificate, privateKey, outputJar);
+            signFile(manifest, input, cert, key, outputJar);
             outputJar.close();
         }
     }

utils/src/main/java/com/topjohnwu/utils/ZipSigner.java

@@ -1,50 +1,41 @@
 package com.topjohnwu.utils;
 
-import org.bouncycastle.jce.provider.BouncyCastleProvider;
-
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.InputStream;
-import java.security.Security;
+import java.io.OutputStream;
 
 public class ZipSigner {
 
     public static void usage() {
-        System.err.println("Usage: zipsigner [x509.pem] [pk8] input.jar output.jar");
+        System.err.println("ZipSigner usage:");
-        System.err.println("Note: If no certificate/private key pair is specified, it will use the embedded test keys.");
+        System.err.println("  zipsigner.jar input.jar output.jar");
+        System.err.println("    sign jar with AOSP test keys");
+        System.err.println("  zipsigner.jar x509.pem pk8 input.jar output.jar");
+        System.err.println("    sign jar with certificate / private key pair");
+        System.err.println("  zipsigner.jar jks keyStorePass keyAlias keyPass input.jar output.jar");
+        System.err.println("    sign jar with Java KeyStore");
         System.exit(2);
     }
 
     public static void main(String[] args) throws Exception {
-        int argStart = 0;
+        if (args.length != 2 && args.length != 4 && args.length != 6)
-
-        if (args.length < 2)
             usage();
 
-        InputStream cert = null;
+        try (JarMap in = new JarMap(args[args.length - 2], false);
-        InputStream key = null;
+             OutputStream out = new FileOutputStream(args[args.length - 1])) {
-
+            if (args.length == 2) {
-        if (args.length - argStart == 4) {
+                SignAPK.sign(in, out);
-            cert = new FileInputStream(new File(args[argStart]));
+            } else if (args.length == 4) {
-            key = new FileInputStream(new File(args[argStart + 1]));
+                try (InputStream cert = new FileInputStream(args[0]);
-            argStart += 2;
+                     InputStream key = new FileInputStream(args[1])) {
-        }
+                    SignAPK.sign(cert, key, in, out);
-
+                }
-        if (args.length - argStart != 2)
+            } else if (args.length == 6) {
-            usage();
+                try (InputStream jks = new FileInputStream(args[0])) {
-
+                    SignAPK.sign(jks, args[1], args[2], args[3], in, out);
-        SignAPK.sBouncyCastleProvider = new BouncyCastleProvider();
+                }
-        Security.insertProviderAt(SignAPK.sBouncyCastleProvider, 1);
+            }
-
-        File input = new File(args[argStart]);
-        File output = new File(args[argStart + 1]);
-
-        try (JarMap jar = new JarMap(input, false);
-             BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(output))) {
-            SignAPK.signZip(cert, key, jar, out);
         }
     }
 }