From b1893edae5c8b9e4fbcae32d67890d9ebeb4f316 Mon Sep 17 00:00:00 2001
From: Dominika Liberda
Date: Thu, 24 Dec 2020 06:29:01 +0100
Subject: [PATCH] Initial
---
LICENSE | 674 +++++++++++++++++++++++++++++++++++++++++
Launcher.java | 23 ++
README.md | 9 +
ZipAlign.java | 822 ++++++++++++++++++++++++++++++++++++++++++++++++++
build.sh | 7 +
5 files changed, 1535 insertions(+)
create mode 100644 LICENSE
create mode 100644 Launcher.java
create mode 100644 README.md
create mode 100644 ZipAlign.java
create mode 100755 build.sh
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..f288702
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
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+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+
+ Copyright (C)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see .
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ Copyright (C)
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+.
diff --git a/Launcher.java b/Launcher.java
new file mode 100644
index 0000000..07fc714
--- /dev/null
+++ b/Launcher.java
@@ -0,0 +1,23 @@
+import java.io.File;
+import java.util.Arrays;
+import java.util.List;
+
+class Launcher {
+ public static void main(String[] args) {
+ System.out.println("why android-sdk, why");
+ if (args.length > 0) {
+ File in = new File(args[0]);
+ File out = new File(args[1]);
+ align(in, out);
+ } else {
+ System.out.println("Usage: java -jar ZipAlign.jar ");
+ }
+ }
+ private static void align(File apkPath, File output) {
+ try {
+ new ZipAlign.ZipAligner(apkPath, output).run();
+ } catch (Exception exception) {
+ throw new RuntimeException(exception);
+ }
+ }
+}
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..336003f
--- /dev/null
+++ b/README.md
@@ -0,0 +1,9 @@
+# ZipAlign Java
+
+Port of android-sdk's zipalign from C++ to Java, taken from [testfairy-uploader](https://github.com/testfairy/testfairy-uploader/blob/master/src/main/java/com/testfairy/uploader/ZipAligner.java) repository.
+
+Launch `build.sh` to build. Needs JDK, unzip, wget. You can also obtain a JAR file from the releases section.
+
+# ChangeLog
+
+1.0.0 (24.12.20) - Adapted code for standalone execution, first version.
diff --git a/ZipAlign.java b/ZipAlign.java
new file mode 100644
index 0000000..8c99b27
--- /dev/null
+++ b/ZipAlign.java
@@ -0,0 +1,822 @@
+/*
+ * Copyright (C) 2012 Hai Bison
+ *
+ * See the file LICENSE at the root directory of this project for copying
+ * permission.
+ */
+
+import org.apache.commons.io.IOUtils;
+
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.FilterOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.RandomAccessFile;
+import java.nio.file.Files;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.Enumeration;
+import java.util.GregorianCalendar;
+import java.util.List;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+import java.util.zip.ZipOutputStream;
+
+/**
+ * ZipAlign.
+ *
+ * This file is ported from AOSP's ZipAlign tool.
+ *
+ *
+ *
Quote from original README
+ *
+ *
+ *
+ *
+ * The purpose of zipalign is to ensure that all uncompressed data starts
+ * with a particular alignment relative to the start of the file. This
+ * allows those portions to be accessed directly with mmap() even if they
+ * contain binary data with alignment restrictions.
+ *
+ * Some data needs to be word-aligned for easy access, others might benefit
+ * from being page-aligned. The adjustment is made by altering the size of
+ * the "extra" field in the zip Local File Header sections. Existing data
+ * in the "extra" fields may be altered by this process.
+ *
+ * Compressed data isn't very useful until it's uncompressed, so there's no
+ * need to adjust its alignment.
+ *
+ * Alterations to the archive, such as renaming or deleting entries, will
+ * potentially disrupt the alignment of the modified entry and all later
+ * entries. Files added to an "aligned" archive will not be aligned.
+ *
+ *
+ *
+ *
+ *
Notes
+ *
+ *
+ *
+ * - The tool modifies the "extra" field of all entries which are not
+ * compressed ({@link ZipEntry#STORED}).
+ *
+ * - Only the "extra" fields in local file headers are modified. The ones in
+ * central directory are not touched.
+ *
+ *
+ *
+ * See Zip (file
+ * format) - Wikipedia for further information..
+ *
+ *
+ * @author Hai Bison
+ * @since v1.6.9 beta
+ */
+class ZipAlign {
+
+ /**
+ * The minimum size of a ZIP entry's header.
+ */
+ public static final int ZIP_ENTRY_HEADER_LEN = 30;
+
+ /**
+ * Default version to work with ZIP files.
+ */
+ public static final int ZIP_ENTRY_VERSION = 20;
+
+ /**
+ * The offset of extra field length in a ZIP entry's header.
+ */
+ public static final int ZIP_ENTRY_OFFSET_EXTRA_LEN = 28;
+
+ /**
+ * The size of field extra length, in a ZIP entry's header.
+ */
+ public static final int ZIP_ENTRY_FIELD_EXTRA_LEN_SIZE = 2;
+
+ /**
+ * @see ZipEntry.h
+ */
+ public static final int ZIP_ENTRY_USES_DATA_DESCR = 0x0008;
+
+ /**
+ * @see ZipEntry.h
+ */
+ public static final int ZIP_ENTRY_DATA_DESCRIPTOR_LEN = 16;
+
+ /**
+ * Default alignment value.
+ *
+ * See zipalign
+ * .
+ *
+ */
+ public static final int DEFAULT_ALIGNMENT = 4;
+
+ /**
+ * Used to append to newly aligned APK's file name.
+ */
+ public static final String ALIGNED = "ALIGNED";
+
+ /**
+ * Private helper class.
+ *
+ * @author Hai Bison
+ * @since v1.6.9 beta
+ */
+ private static class XEntry {
+
+ public final ZipEntry entry;
+ public final long headerOffset;
+ public final int flags;
+ public final int padding;
+
+ /**
+ * Creates new instance.
+ *
+ * @param entry the entry.
+ * @param headerOffset the offset of the header.
+ * @param flags the flags.
+ * @param padding the padding of the "extra" field.
+ */
+ public XEntry(ZipEntry entry, long headerOffset, int flags, int padding) {
+ this.entry = entry;
+ this.headerOffset = headerOffset;
+ this.flags = flags;
+ this.padding = padding;
+ }// XEntry()
+ }// XEntry
+
+ /**
+ * Extended class of {@link FilterOutputStream}, which has some helper
+ * methods for writing data to ZIP stream.
+ *
+ * @author Hai Bison
+ * @since v1.6.9 beta
+ */
+ private static class FilterOutputStreamEx extends FilterOutputStream {
+
+ private long totalWritten = 0;
+
+ /**
+ * Creates new instance.
+ *
+ * @param out {@link OutputStream}.
+ */
+ public FilterOutputStreamEx(OutputStream out) {
+ super(out);
+ }// FilterOutputStreamEx()
+
+ @Override
+ public void write(byte[] b) throws IOException {
+ out.write(b);
+ totalWritten += b.length;
+ }// write()
+
+ @Override
+ public void write(byte[] b, int off, int len) throws IOException {
+ out.write(b, off, len);
+ totalWritten += len;
+ }// write()
+
+ @Override
+ public void write(int b) throws IOException {
+ out.write(b);
+ totalWritten += 1;
+ }// write()
+
+ @Override
+ public void close() throws IOException {
+ // l("\t\tclose() >> totalWritten = %,d", totalWritten);
+ super.close();
+ }// close()
+
+ /**
+ * Writes a 32-bit int to the output stream in little-endian byte order.
+ *
+ * @param v the data to write.
+ * @throws IOException
+ */
+ public void writeInt(long v) throws IOException {
+ write((int) ((v >>> 0) & 0xff));
+ write((int) ((v >>> 8) & 0xff));
+ write((int) ((v >>> 16) & 0xff));
+ write((int) ((v >>> 24) & 0xff));
+ }// writeInt()
+
+ /**
+ * Writes a 16-bit short to the output stream in little-endian byte
+ * order.
+ *
+ * @param v the data to write.
+ * @throws IOException
+ */
+ public void writeShort(int v) throws IOException {
+ write((v >>> 0) & 0xff);
+ write((v >>> 8) & 0xff);
+ }// writeShort()
+
+ }// FilterOutputStreamEx
+
+ /**
+ * To align ZIP files :-)
+ *
+ * @author Hai Bison
+ * @since v1.6.9 beta
+ */
+ public static class ZipAligner {
+ private final File mInputFile;
+ private final int mAlignment;
+ private final File mOutputFile;
+ private final List mXEntries = new ArrayList();
+
+ private ZipFile mZipFile;
+ private RandomAccessFile mRafInput;
+ private FilterOutputStreamEx mOutputStream;
+ private long mInputFileOffset = 0;
+ private int mTotalPadding = 0;
+
+ /**
+ * Creates new instance with alignment value of
+ * {@link ZipAlign#DEFAULT_ALIGNMENT}.
+ *
+ * @param input the input file.
+ * @param output the output file.
+ */
+ public ZipAligner(File input, File output) {
+ this(input, DEFAULT_ALIGNMENT, output);
+ }
+
+ /**
+ * Creates new instance.
+ *
+ * @param input the input file.
+ * @param alignment the alignment, {@link ZipAlign#DEFAULT_ALIGNMENT} is
+ * highly recommended.
+ * @param output the output file.
+ */
+ public ZipAligner(File input, int alignment, File output) {
+ mInputFile = input;
+ mAlignment = alignment;
+ mOutputFile = output;
+ }
+
+ public void run() {
+ try {
+ mZipFile = new ZipFile(mInputFile);
+ mRafInput = new RandomAccessFile(mInputFile, "r");
+ mOutputStream = new FilterOutputStreamEx(new BufferedOutputStream(
+ new FileOutputStream(mOutputFile),
+ Files.FILE_BUFFER
+ ));
+ copyAllEntries();
+ buildCentralDirectory();
+ } catch (Exception exception) {
+ throw new RuntimeException(exception);
+ } finally {
+ IOUtils.closeQuietly(mZipFile);
+ IOUtils.closeQuietly(mRafInput);
+ IOUtils.closeQuietly(mOutputStream);
+ }
+ }
+
+ /**
+ * Copies all entries, aligning them if needed.
+ *
+ * This takes 80% of total.
+ *
+ *
+ * @throws IOException
+ */
+ private void copyAllEntries() throws IOException {
+ final int entryCount = mZipFile.size();
+ if (entryCount == 0) {
+// sendNotification(MSG_INFO, mProgress += 80);
+ return;
+ }
+
+ final float progress = 80f / entryCount;
+
+ final Enumeration extends ZipEntry> entries = mZipFile.entries();
+ while (entries.hasMoreElements()) {
+ final ZipEntry entry = entries.nextElement();
+
+ int flags = entry.getMethod() == ZipEntry.STORED ? 0 : 1 << 3;
+ flags |= 1 << 11;
+
+ final long outputEntryHeaderOffset = mOutputStream.totalWritten;
+// if (Sys.DEBUG)
+// L.d("\t\toutputEntryHeaderOffset = %,d",
+// outputEntryHeaderOffset);
+
+ final int inputEntryHeaderSize = ZIP_ENTRY_HEADER_LEN
+ + (entry.getExtra() != null ? entry.getExtra().length
+ : 0)
+ + entry.getName().getBytes(Texts.UTF8).length;
+ final long inputEntryDataOffset = mInputFileOffset
+ + inputEntryHeaderSize;
+
+// sendNotification(
+// MSG_INFO,
+// Texts.NULL,
+// String.format("%,15d %s", inputEntryDataOffset,
+// entry.getName()));
+
+ final int padding;
+
+ if (entry.getMethod() != ZipEntry.STORED) {
+ /*
+ * The entry is compressed, copy it without padding.
+ */
+ padding = 0;
+ } else {
+ /*
+ * Copy the entry, adjusting as required. We assume that the
+ * file position in the new file will be equal to the file
+ * position in the original.
+ */
+ long newOffset = inputEntryDataOffset + mTotalPadding;
+// if (Sys.DEBUG)
+// L.d("\t\t\tnewOffset = %,d", newOffset);
+ padding = (int) ((mAlignment - (newOffset % mAlignment)) % mAlignment);
+ mTotalPadding += padding;
+ }
+
+ final XEntry xentry = new XEntry(entry,
+ outputEntryHeaderOffset, flags, padding);
+ mXEntries.add(xentry);
+
+// if (Sys.DEBUG)
+// L.d("\t'%s' >> header = %,d, padding = %,d",
+// entry.getName(), inputEntryHeaderSize, padding);
+
+ /*
+ * Modify the original header, add padding to `extra` field and
+ * copy it to output.
+ */
+ byte[] extra = entry.getExtra();
+ if (extra == null) {
+ extra = new byte[padding];
+ Arrays.fill(extra, (byte) 0);
+ } else {
+ byte[] newExtra = new byte[extra.length + padding];
+ System.arraycopy(extra, 0, newExtra, 0, extra.length);
+ Arrays.fill(newExtra, extra.length, newExtra.length,
+ (byte) 0);
+ extra = newExtra;
+ }
+ entry.setExtra(extra);
+
+ /*
+ * Now write the header to output.
+ */
+
+ mOutputStream.writeInt(ZipOutputStream.LOCSIG);
+ mOutputStream.writeShort(ZIP_ENTRY_VERSION);
+ mOutputStream.writeShort(flags);
+ mOutputStream.writeShort(entry.getMethod());
+
+ int modDate;
+ int time;
+ GregorianCalendar cal = new GregorianCalendar();
+ cal.setTime(new Date(entry.getTime()));
+ int year = cal.get(Calendar.YEAR);
+ if (year < 1980) {
+ modDate = 0x21;
+ time = 0;
+ } else {
+ modDate = cal.get(Calendar.DATE);
+ modDate = (cal.get(Calendar.MONTH) + 1 << 5) | modDate;
+ modDate = ((cal.get(Calendar.YEAR) - 1980) << 9) | modDate;
+ time = cal.get(Calendar.SECOND) >> 1;
+ time = (cal.get(Calendar.MINUTE) << 5) | time;
+ time = (cal.get(Calendar.HOUR_OF_DAY) << 11) | time;
+ }
+
+ mOutputStream.writeShort(time);
+ mOutputStream.writeShort(modDate);
+
+ mOutputStream.writeInt(entry.getCrc());
+ mOutputStream.writeInt(entry.getCompressedSize());
+ mOutputStream.writeInt(entry.getSize());
+
+ mOutputStream
+ .writeShort(entry.getName().getBytes(Texts.UTF8).length);
+ mOutputStream.writeShort(entry.getExtra().length);
+ mOutputStream.write(entry.getName().getBytes(Texts.UTF8));
+ mOutputStream.write(entry.getExtra(), 0,
+ entry.getExtra().length);
+
+ /*
+ * Copy raw data.
+ */
+
+ mInputFileOffset += inputEntryHeaderSize;
+
+ final long sizeToCopy;
+ if ((flags & ZIP_ENTRY_USES_DATA_DESCR) != 0)
+ sizeToCopy = (entry.isDirectory() ? 0 : entry
+ .getCompressedSize())
+ + ZIP_ENTRY_DATA_DESCRIPTOR_LEN;
+ else
+ sizeToCopy = entry.isDirectory() ? 0 : entry
+ .getCompressedSize();
+
+ if (sizeToCopy > 0) {
+ mRafInput.seek(mInputFileOffset);
+
+ long totalSizeCopied = 0;
+ final byte[] buf = new byte[Files.FILE_BUFFER];
+ while (totalSizeCopied < sizeToCopy) {
+ int read = mRafInput.read(
+ buf,
+ 0,
+ (int) Math.min(Files.FILE_BUFFER, sizeToCopy
+ - totalSizeCopied));
+ if (read <= 0)
+ break;
+
+ mOutputStream.write(buf, 0, read);
+ totalSizeCopied += read;
+ }// while
+ }// if
+
+ mInputFileOffset += sizeToCopy;
+
+// if (padding == 0)
+// sendNotification(MSG_INFO, mProgress += progress,
+// Texts.NULL, String.format(" (%s, %s)\n",
+// Messages.getString(R.string.compressed),
+// Messages.getString(R.string.passed)));
+// else
+// sendNotification(
+// MSG_INFO,
+// mProgress += progress,
+// Texts.NULL,
+// String.format(" (%s, %s)\n",
+// Messages.getString(R.string.aligned),
+// Texts.sizeToStr(padding)));
+ }// while
+ }// copyAllEntries()
+
+ /**
+ * Builds central directory.
+ *
+ * This takes 10% of total.
+ *
+ *
+ * @throws IOException
+ */
+ private void buildCentralDirectory() throws IOException {
+ final long centralDirOffset = mOutputStream.totalWritten;
+
+// L.d("\tWriting Central Directory at %,d", centralDirOffset);
+
+ for (XEntry xentry : mXEntries) {
+ /*
+ * Write entry.
+ */
+ final ZipEntry entry = xentry.entry;
+
+ int modDate;
+ int time;
+ GregorianCalendar cal = new GregorianCalendar();
+ cal.setTime(new Date(entry.getTime()));
+ int year = cal.get(Calendar.YEAR);
+ if (year < 1980) {
+ modDate = 0x21;
+ time = 0;
+ } else {
+ modDate = cal.get(Calendar.DATE);
+ modDate = (cal.get(Calendar.MONTH) + 1 << 5) | modDate;
+ modDate = ((cal.get(Calendar.YEAR) - 1980) << 9) | modDate;
+ time = cal.get(Calendar.SECOND) >> 1;
+ time = (cal.get(Calendar.MINUTE) << 5) | time;
+ time = (cal.get(Calendar.HOUR_OF_DAY) << 11) | time;
+ }
+
+ mOutputStream.writeInt(ZipFile.CENSIG); // CEN header signature
+ mOutputStream.writeShort(ZIP_ENTRY_VERSION); // version made by
+ mOutputStream.writeShort(ZIP_ENTRY_VERSION); // version needed
+ // to
+ // extract
+ mOutputStream.writeShort(xentry.flags); // general purpose bit
+ // flag
+ mOutputStream.writeShort(entry.getMethod()); // compression
+ // method
+ mOutputStream.writeShort(time);
+ mOutputStream.writeShort(modDate);
+ mOutputStream.writeInt(entry.getCrc()); // crc-32
+ mOutputStream.writeInt(entry.getCompressedSize()); // compressed
+ // size
+ mOutputStream.writeInt(entry.getSize()); // uncompressed size
+ final byte[] nameBytes = entry.getName().getBytes(Texts.UTF8);
+ mOutputStream.writeShort(nameBytes.length);
+ mOutputStream.writeShort(entry.getExtra() != null ? entry
+ .getExtra().length - xentry.padding : 0);
+ final byte[] commentBytes;
+ if (entry.getComment() != null) {
+ commentBytes = entry.getComment().getBytes(Texts.UTF8);
+ mOutputStream.writeShort(Math.min(commentBytes.length,
+ 0xffff));
+ } else {
+ commentBytes = null;
+ mOutputStream.writeShort(0);
+ }
+ mOutputStream.writeShort(0); // starting disk number
+ mOutputStream.writeShort(0); // internal file attributes
+ // (unused)
+ mOutputStream.writeInt(0); // external file attributes (unused)
+ mOutputStream.writeInt(xentry.headerOffset); // relative offset
+ // of
+ // local
+ // header
+ mOutputStream.write(nameBytes);
+ if (entry.getExtra() != null)
+ mOutputStream.write(entry.getExtra(), 0,
+ entry.getExtra().length - xentry.padding);
+ if (commentBytes != null)
+ mOutputStream.write(commentBytes, 0,
+ Math.min(commentBytes.length, 0xffff));
+ }// for xentry
+
+
+// sendNotification(MSG_INFO, mProgress += 5);
+
+ /*
+ * Write the end of central directory.
+ */
+ final long centralDirSize = mOutputStream.totalWritten
+ - centralDirOffset;
+// L.d("\tWriting End of Central Directory, its size = %,d",
+// centralDirSize);
+
+ final int entryCount = mXEntries.size();
+
+ mOutputStream.writeInt(ZipFile.ENDSIG); // END record signature
+ mOutputStream.writeShort(0); // number of this disk
+ mOutputStream.writeShort(0); // central directory start disk
+ mOutputStream.writeShort(entryCount); // number of directory entries
+ // on
+ // disk
+ mOutputStream.writeShort(entryCount); // total number of directory
+ // entries
+ mOutputStream.writeInt(centralDirSize); // length of central
+ // directory
+ mOutputStream.writeInt(centralDirOffset); // offset of central
+ // directory
+ if (mZipFile.getComment() != null) { // zip file comment
+ final byte[] bytes = mZipFile.getComment().getBytes(Texts.UTF8);
+ mOutputStream.writeShort(bytes.length);
+ mOutputStream.write(bytes);
+ } else {
+ mOutputStream.writeShort(0);
+ }
+
+ mOutputStream.flush();
+
+// sendNotification(MSG_INFO, mProgress += 5);
+ }
+ }
+
+ /**
+ * The ZIP alignment verifier.
+ *
+ * @author Hai Bison
+ * @since v1.6.9 beta
+ */
+ public static class ZipAlignmentVerifier {
+
+ private final File mInputFile;
+ private final int mAlignment;
+ private ZipFile mZipFile;
+ private RandomAccessFile mRafInput;
+
+ /**
+ * 0 >> 100
+ */
+ private double mProgress = 0;
+ private boolean mFoundBad = false;
+
+ /**
+ * Creates new instance with alignment value of
+ * {@link ZipAlign#DEFAULT_ALIGNMENT}.
+ *
+ * @param inputFile the input file to verify.
+ */
+ public ZipAlignmentVerifier(File inputFile) {
+ this(inputFile, DEFAULT_ALIGNMENT);
+ }// ZipAlignmentVerifier()
+
+ /**
+ * Creates new instance.
+ *
+ * @param inputFile the input file.
+ * @param alignment the alignment, {@link ZipAlign#DEFAULT_ALIGNMENT} is
+ * highly recommended.
+ */
+ public ZipAlignmentVerifier(File inputFile, int alignment) {
+ mInputFile = inputFile;
+ mAlignment = alignment;
+ }// ZipAlignmentVerifier()
+
+ public void run() {
+// L.d("%s >> starting", ZipAlignmentVerifier.class.getSimpleName());
+
+ try {
+ openFiles();
+ verify();
+ } catch (Exception e) {
+ mFoundBad = true;
+// sendNotification(
+// MSG_ERROR,
+// Texts.NULL,
+// Messages.getString(R.string.pmsg_error_details,
+// e.getMessage(), L.printStackTrace(e)));
+ } finally {
+ try {
+ closeFiles();
+ } catch (Exception e) {
+ mFoundBad = true;
+// sendNotification(
+// MSG_ERROR,
+// Texts.NULL,
+// Messages.getString(R.string.pmsg_error_details,
+// e.getMessage(), L.printStackTrace(e)));
+ }
+ }
+
+// sendNotification(MSG_ERROR, Texts.NULL,
+// Messages.getString(R.string.cancelled));
+//
+// sendNotification(MSG_DONE);
+//
+// L.d("%s >> finishing", ZipAlignmentVerifier.class.getSimpleName());
+ }// run()
+
+ /**
+ * Opens files.
+ *
+ * This takes 5% of total.
+ *
+ *
+ * @throws IOException
+ */
+ private void openFiles() throws IOException {
+// sendNotification(MSG_INFO, Texts.NULL, String.format("%s\n\n",
+// Messages.getString(
+// R.string.pmsg_verifying_alignment_of_apk,
+// mInputFile.getName(), mAlignment)));
+
+ mZipFile = new ZipFile(mInputFile);
+ mRafInput = new RandomAccessFile(mInputFile, "r");
+
+// sendNotification(MSG_INFO, mProgress = 5);
+ }// openFiles()
+
+ /**
+ * Verifies input file.
+ *
+ * This takes 90% of total.
+ *
+ *
+ * @throws IOException
+ */
+ private void verify() throws IOException {
+ final int entryCount = mZipFile.size();
+ if (entryCount == 0) {
+// sendNotification(MSG_INFO, mProgress += 90);
+ return;
+ }
+
+ final Enumeration extends ZipEntry> entries = mZipFile.entries();
+ final float progress = 90f / entryCount;
+ long dataOffset = 0;
+
+ while (entries.hasMoreElements()) {
+ final ZipEntry entry = entries.nextElement();
+
+ mRafInput.seek(dataOffset + ZIP_ENTRY_OFFSET_EXTRA_LEN);
+ final byte[] buf = new byte[ZIP_ENTRY_FIELD_EXTRA_LEN_SIZE];
+ if (mRafInput.read(buf) != buf.length) {
+ mFoundBad = true;
+ throw new IOException("Reading extra field length failed");
+ }
+ /*
+ * Fetches unsigned 16-bit value from byte array at specified
+ * offset. The bytes are assumed to be in Intel (little-endian)
+ * byte order.
+ */
+ final int extraLen = (buf[0] & 0xff) | ((buf[1] & 0xff) << 8);
+
+ final int headerSize = ZIP_ENTRY_HEADER_LEN + extraLen
+ + entry.getName().getBytes(Texts.UTF8).length;
+
+ if (entry.getMethod() != ZipEntry.STORED) {
+ /*
+ * The entry is compressed.
+ */
+// sendNotification(
+// MSG_INFO,
+// mProgress += progress,
+// Texts.NULL,
+// String.format("%,15d %s (%s - %s)\n", dataOffset
+// + headerSize, entry.getName(),
+// Messages.getString(R.string.ok),
+// Messages.getString(R.string.compressed)));
+ } else {
+ /*
+ * The entry is not compressed.
+ */
+ if ((dataOffset + headerSize) % mAlignment != 0) {
+// sendNotification(
+// MSG_INFO,
+// mProgress += progress,
+// Texts.NULL,
+// String.format(
+// "%,15d %s (%s - %s)\n",
+// dataOffset + headerSize,
+// entry.getName(),
+// Messages.getString(R.string.BAD),
+// Texts.sizeToStr((dataOffset + headerSize)
+// % mAlignment)));
+ mFoundBad = true;
+ } else {
+// sendNotification(
+// MSG_INFO,
+// mProgress += progress,
+// Texts.NULL,
+// String.format("%,15d %s (%s)\n", dataOffset
+// + headerSize, entry.getName(),
+// Messages.getString(R.string.ok)));
+ }
+ }
+
+ int flags = entry.getMethod() == ZipEntry.STORED ? 0 : 1 << 3;
+ flags |= 1 << 11;
+ final long dataSize;
+ if ((flags & ZIP_ENTRY_USES_DATA_DESCR) != 0)
+ dataSize = (entry.isDirectory() ? 0 : entry
+ .getCompressedSize())
+ + ZIP_ENTRY_DATA_DESCRIPTOR_LEN;
+ else
+ dataSize = entry.isDirectory() ? 0 : entry
+ .getCompressedSize();
+
+// if (Sys.DEBUG)
+// L.d("size = %,8d, compressed = %,8d, crc32 = %08x, data mHeaderOffset = %,8d >> %,8d"
+// + " >> Entry '%s'", entry.getSize(),
+// entry.getCompressedSize(), entry.getCrc(),
+// dataOffset, dataOffset + headerSize,
+// entry.getName());
+
+ dataOffset += headerSize + dataSize;
+ }// while
+ }// verify()
+
+ /**
+ * Closes source files.
+ *
+ * This takes 5% of total.
+ *
+ *
+ * @throws IOException
+ */
+ private void closeFiles() throws IOException {
+ mZipFile.close();
+ mRafInput.close();
+
+// sendNotification(
+// MSG_INFO,
+// mProgress = 100,
+// Texts.NULL,
+// String.format(
+// "\n%s",
+// mFoundBad ? Messages
+// .getString(R.string.verification_failed)
+// : Messages
+// .getString(R.string.verification_succesful)));
+ }// closeFiles()
+
+ }
+
+ static class Texts {
+ public static final String UTF8 = "UTF-8";
+ }
+
+ static class Files {
+ /**
+ * File handling buffer (reading, writing...). {@code 32 KiB}.
+ */
+ public static final int FILE_BUFFER = 32 * 1024;
+ }
+}
diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..2b14f31
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+rm ZipAlign.jar *.class *.apk
+[[ ! -f "commons-io-2.8.0.jar" ]] && wget "https://repo1.maven.org/maven2/commons-io/commons-io/2.8.0/commons-io-2.8.0.jar"
+javac *.java -cp commons-io-2.8.0.jar
+unzip -ou commons-io-2.8.0.jar
+rm -R META-INF
+jar cfe ZipAlign.jar Launcher org *.class