Hai Zhang created COMPRESS-455:
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Summary: Cannot open certain APK file (Unexpected record signature)
Key: COMPRESS-455
URL: https://issues.apache.org/jira/browse/COMPRESS-455
Project: Commons Compress
Issue Type: Bug
Components: Archivers
Affects Versions: 1.17
Environment: Android 8.1.0
Reporter: Hai Zhang
I'm developing a file manager for Android and noticed that
ZipArchiveInputStream throws an exception for certain APK files (but not all) I
have at hand:
{noformat}
06-12 23:01:03.043 26960-4050/me.zhanghai.android.materialfilemanager
W/System.err: java.util.zip.ZipException: Unexpected record signature: 0X621
06-12 23:01:03.044 26960-4050/me.zhanghai.android.materialfilemanager
W/System.err: at
org.apache.commons.compress.archivers.zip.ZipArchiveInputStream.getNextZipEntry(ZipArchiveInputStream.java:258)
at
org.apache.commons.compress.archivers.zip.ZipArchiveInputStream.getNextEntry(ZipArchiveInputStream.java:406)
at
me.zhanghai.android.materialfilemanager.filesystem.Archive.readEntries(Archive.java:79)
at
me.zhanghai.android.materialfilemanager.filesystem.Archive.read(Archive.java:36)
at
me.zhanghai.android.materialfilemanager.filesystem.ArchiveFile.loadFileList(ArchiveFile.java:112)
at
me.zhanghai.android.materialfilemanager.filelist.FileLiveData$1.doInBackground(FileLiveData.java:32)
at
me.zhanghai.android.materialfilemanager.filelist.FileLiveData$1.doInBackground(FileLiveData.java:28)
at android.os.AsyncTask$2.call(AsyncTask.java:333)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:245)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
at java.lang.Thread.run(Thread.java:764){noformat}
However, these APKs installs fine, and can be viewed by the system Files app
(by changing extension to zip) and some other opensource file managers built
upon java.util.zip.
Some links to APKs I found with this problem:
1.
[https://github.com/paphonb/PixelLauncherModV5/releases/download/5.3_23/Pixel.2.Launcher.modded.5.3.build.23.apk]
2. [https://github.com/Yink/Amadeus/releases/download/0.9.6-alpha.5/amadeus.apk]
My code for reading the APK archive entries:
{code:java}
private static void readEntries(InputStream inputStream, List<ArchiveEntry>
entries)
throws ArchiveException, IOException {
try (ArchiveInputStream archiveInputStream =
sArchiveStreamFactory.createArchiveInputStream(
new BufferedInputStream(inputStream))) {
while (true) {
ArchiveEntry entry = archiveInputStream.getNextEntry();
if (entry == null) {
break;
}
entries.add(entry);
}
}
}
{code}
Also note that if I catch the exception while keeping the list of already-read
entries, it seems that (almost) all entries have been read.
I wonder how this can be fixed, or if this is because those files have some
kind of weird format, how can I possibly work around this?
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