private boolean unpackFile(ZipFile zip, byte[] buf, ZipEntry fileEntry, String name)
throws IOException, FileNotFoundException {
if (fileEntry == null) fileEntry = zip.getEntry(name);
if (fileEntry == null)
throw new FileNotFoundException("Can't find " + name + " in " + zip.getName());
File outFile = new File(sGREDir, name);
if (outFile.lastModified() == fileEntry.getTime() && outFile.length() == fileEntry.getSize())
return false;
File dir = outFile.getParentFile();
if (!dir.exists()) dir.mkdirs();
InputStream fileStream;
fileStream = zip.getInputStream(fileEntry);
OutputStream outStream = new FileOutputStream(outFile);
while (fileStream.available() > 0) {
int read = fileStream.read(buf, 0, buf.length);
outStream.write(buf, 0, read);
}
fileStream.close();
outStream.close();
outFile.setLastModified(fileEntry.getTime());
return true;
}
protected void unpackComponents() throws IOException, FileNotFoundException {
File applicationPackage = new File(getApplication().getPackageResourcePath());
File componentsDir = new File(sGREDir, "components");
if (componentsDir.lastModified() == applicationPackage.lastModified()) return;
componentsDir.mkdir();
componentsDir.setLastModified(applicationPackage.lastModified());
GeckoAppShell.killAnyZombies();
ZipFile zip = new ZipFile(applicationPackage);
byte[] buf = new byte[32768];
try {
if (unpackFile(zip, buf, null, "removed-files")) removeFiles();
} catch (Exception ex) {
// This file may not be there, so just log any errors and move on
Log.w(LOG_FILE_NAME, "error removing files", ex);
}
// copy any .xpi file into an extensions/ directory
Enumeration<? extends ZipEntry> zipEntries = zip.entries();
while (zipEntries.hasMoreElements()) {
ZipEntry entry = zipEntries.nextElement();
if (entry.getName().startsWith("extensions/") && entry.getName().endsWith(".xpi")) {
Log.i("GeckoAppJava", "installing extension : " + entry.getName());
unpackFile(zip, buf, entry, entry.getName());
}
}
}
void updateLastModifiedTime(Set<ZipEntry> zes) throws IOException {
for (ZipEntry ze : zes) {
long lastModified = ze.getTime();
if (lastModified != -1) {
File f = new File(ze.getName().replace('/', File.separatorChar));
f.setLastModified(lastModified);
}
}
}
/**
* Extracts next entry from JAR file, creating directories as needed. If the entry is for a
* directory which doesn't exist prior to this invocation, returns that entry, otherwise returns
* null.
*/
ZipEntry extractFile(InputStream is, ZipEntry e) throws IOException {
ZipEntry rc = null;
String name = e.getName();
File f = new File(e.getName().replace('/', File.separatorChar));
if (e.isDirectory()) {
if (f.exists()) {
if (!f.isDirectory()) {
throw new IOException(formatMsg("error.create.dir", f.getPath()));
}
} else {
if (!f.mkdirs()) {
throw new IOException(formatMsg("error.create.dir", f.getPath()));
} else {
rc = e;
}
}
if (vflag) {
output(formatMsg("out.create", name));
}
} else {
if (f.getParent() != null) {
File d = new File(f.getParent());
if (!d.exists() && !d.mkdirs() || !d.isDirectory()) {
throw new IOException(formatMsg("error.create.dir", d.getPath()));
}
}
try {
copy(is, f);
} finally {
if (is instanceof ZipInputStream) ((ZipInputStream) is).closeEntry();
else is.close();
}
if (vflag) {
if (e.getMethod() == ZipEntry.DEFLATED) {
output(formatMsg("out.inflated", name));
} else {
output(formatMsg("out.extracted", name));
}
}
}
if (!useExtractionTime) {
long lastModified = e.getTime();
if (lastModified != -1) {
f.setLastModified(lastModified);
}
}
return rc;
}
