Sign APK using SignedJarBuilder

Author: imilka

build.xml

@@ -45,7 +45,8 @@
 		      ${processing.dir}/app/pde.jar;
 		      ${processing.dir}/app/lib/ant.jar;
 		      ${processing.dir}/app/lib/ant-launcher.jar;
-		      ${processing.dir}/app/lib/antlr.jar"
+		      ${processing.dir}/app/lib/antlr.jar;
+		      mode/org.eclipse.core.runtime-3.1.0.jar"
 	   debug="on">
       <src path="src" />
     </javac>

mode/org.eclipse.core.runtime-3.1.0.jar

@@ -34,6 +34,7 @@
 import processing.app.exec.ProcessHelper;
 import processing.app.exec.ProcessResult;
 import processing.core.PApplet;
+import processing.mode.android.signing.JarSigner;
 import processing.mode.java.JavaBuild;
 
 import java.io.*;
@@ -304,11 +305,12 @@ private File signPackage(File projectFolder, String keyStorePassword) throws Exc
 
     File unsignedPackage = new File(projectFolder, "bin/" + sketch.getName() + "-release-unsigned.apk");
     if (!unsignedPackage.exists()) return null;
+    File signedPackage = new File(projectFolder, "bin/" + sketch.getName() + "-release-signed.apk");
 
-    JarSigner.signJar(unsignedPackage, AndroidKeyStore.ALIAS_STRING, keyStorePassword, keyStore.getAbsolutePath(), keyStorePassword);
+    JarSigner.signJar(unsignedPackage, signedPackage, AndroidKeyStore.ALIAS_STRING, keyStorePassword, keyStore.getAbsolutePath(), keyStorePassword);
 
     //if (verifySignedPackage(unsignedPackage)) {
-    File signedPackage = new File(projectFolder, "bin/" + sketch.getName() + "-release-signed.apk");
+    /*File signedPackage = new File(projectFolder, "bin/" + sketch.getName() + "-release-signed.apk");
     if (signedPackage.exists()) {
       boolean deleteResult = signedPackage.delete();
       if (!deleteResult) {
@@ -323,7 +325,7 @@ private File signPackage(File projectFolder, String keyStorePassword) throws Exc
       Base.showWarning("Error during package signing",
           "Unable to rename package file");
       return null;
-    }
+    }*/
 
     File alignedPackage = zipalignPackage(signedPackage, projectFolder);
     return alignedPackage;

src/processing/mode/android/AndroidBuild.java

@@ -0,0 +1,14 @@
+package processing.mode.android.signing;
+
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+import java.security.PrivateKey;
+import java.security.cert.X509Certificate;
+import java.util.jar.JarOutputStream;
+
+public interface IApkSignatureProvider {
+
+  public void writeSignatureBlock(byte[] message, String signatureAlgorithm, X509Certificate publicKey,
+                                  PrivateKey privateKey,JarOutputStream mOutputJar)throws IOException, GeneralSecurityException;
+
+}

src/processing/mode/android/JarSigner.java

@@ -0,0 +1,37 @@
+package processing.mode.android.signing;
+
+import java.io.*;
+import java.security.*;
+import java.security.cert.CertificateException;
+import java.security.cert.X509Certificate;
+
+/**
+ * Created by ibziy_000 on 17.08.2014.
+ */
+public class JarSigner {
+  public static void signJar(File jarToSign, File outputJar, String alias, String keypass, String keystore, String storepass)
+      throws GeneralSecurityException, IOException, SignedJarBuilder.IZipEntryFilter.ZipAbortException {
+
+    PrivateKey mPrivateKey;
+    X509Certificate mCertificate;
+
+    KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
+    FileInputStream fis = new FileInputStream(keystore);
+    keyStore.load(fis, storepass.toCharArray());
+    fis.close();
+
+    KeyStore.PrivateKeyEntry entry = (KeyStore.PrivateKeyEntry)keyStore.getEntry(
+        alias, new KeyStore.PasswordProtection(keypass.toCharArray()));
+    if (entry != null) {
+      mPrivateKey = entry.getPrivateKey();
+      mCertificate = (X509Certificate) entry.getCertificate();
+    } else {
+      throw new KeyStoreException("Couldn't get key");
+    }
+
+    SignedJarBuilder builder = new SignedJarBuilder(
+        new FileOutputStream(outputJar, false), mPrivateKey, mCertificate);
+    builder.writeZip(new FileInputStream(jarToSign), null);
+    builder.close();
+  }
+}