@NotNull
protected Map<String, EntryInfo> initEntries() {
synchronized (lock) {
Map<String, EntryInfo> map = myRelPathsToEntries.get();
if (map == null) {
final ZipInputStream zip = getZip();
map = new HashMap<String, EntryInfo>();
if (zip != null) {
map.put("", new EntryInfo("", null, true, new byte[0]));
try {
ZipEntry entry = zip.getNextEntry();
while (entry != null) {
final String name = entry.getName();
final boolean isDirectory = name.endsWith("/");
if (entry.getExtra() == null) {
byte[] cont = new byte[(int) entry.getSize()];
ByteArrayOutputStream byteArray = new ByteArrayOutputStream();
InputStream stream = getZip();
if (stream != null) {
int tmp;
if ((tmp = stream.read(cont)) == entry.getSize()) {
byteArray.write(cont, 0, tmp);
entry.setExtra(byteArray.toByteArray());
} else {
int readFromIS = tmp;
if (tmp < entry.getSize()) {
byteArray.write(cont, 0, tmp);
while (((tmp = stream.read(cont)) != -1)
&& (tmp + readFromIS <= entry.getSize())) {
byteArray.write(cont, 0, tmp);
readFromIS += tmp;
}
entry.setExtra(byteArray.toByteArray());
}
}
}
}
getOrCreate(
isDirectory ? name.substring(0, name.length() - 1) : name,
isDirectory,
map,
entry.getExtra());
entry = zip.getNextEntry();
}
} catch (IOException e) {
e.printStackTrace();
}
myRelPathsToEntries = new SoftReference<Map<String, EntryInfo>>(map);
}
}
return map;
}
}
/**
* Open the next entry from the zip archive, and return its description. If the previous entry
* wasn't closed, this method will close it.
*/
public ZipEntry getNextEntry() throws IOException {
if (crc == null) throw new IOException("Stream closed.");
if (entry != null) closeEntry();
int header = readLeInt();
if (header == CENSIG) {
/* Central Header reached. */
close();
return null;
}
if (header != LOCSIG)
throw new ZipException("Wrong Local header signature: " + Integer.toHexString(header));
/* skip version */
readLeShort();
flags = readLeShort();
method = readLeShort();
int dostime = readLeInt();
int crc = readLeInt();
csize = readLeInt();
size = readLeInt();
int nameLen = readLeShort();
int extraLen = readLeShort();
if (method == ZipOutputStream.STORED && csize != size)
throw new ZipException("Stored, but compressed != uncompressed");
byte[] buffer = new byte[nameLen];
readFully(buffer);
String name;
try {
name = new String(buffer, "UTF-8");
} catch (UnsupportedEncodingException uee) {
throw new AssertionError(uee);
}
entry = createZipEntry(name);
entryAtEOF = false;
entry.setMethod(method);
if ((flags & 8) == 0) {
entry.setCrc(crc & 0xffffffffL);
entry.setSize(size & 0xffffffffL);
entry.setCompressedSize(csize & 0xffffffffL);
}
entry.setDOSTime(dostime);
if (extraLen > 0) {
byte[] extra = new byte[extraLen];
readFully(extra);
entry.setExtra(extra);
}
if (method == ZipOutputStream.DEFLATED && avail > 0) {
System.arraycopy(buf, len - avail, buf, 0, avail);
len = avail;
avail = 0;
inf.setInput(buf, 0, len);
}
return entry;
}
protected void writeDocument(String path, ExportedDocument doc) throws IOException {
if (path.equals("/") || path.length() == 0) {
path = "";
} else { // avoid adding a root entry
path += '/';
ZipEntry entry = new ZipEntry(path);
// store the number of child as an extra info on the entry
entry.setExtra(new DWord(doc.getFilesCount()).getBytes());
out.putNextEntry(entry);
out.closeEntry();
// System.out.println(">> add entry: "+entry.getName());
}
// write metadata
ZipEntry entry = new ZipEntry(path + ExportConstants.DOCUMENT_FILE);
out.putNextEntry(entry);
try {
writeXML(doc.getDocument(), out);
} finally {
out.closeEntry();
// System.out.println(">> add entry: "+entry.getName());
}
// write external documents
for (Map.Entry<String, Document> ext : doc.getDocuments().entrySet()) {
String fileName = ext.getKey() + ".xml";
entry = new ZipEntry(path + fileName);
out.putNextEntry(entry);
try {
writeXML(ext.getValue(), out);
} finally {
out.closeEntry();
}
}
// write blobs
Map<String, Blob> blobs = doc.getBlobs();
for (Map.Entry<String, Blob> blobEntry : blobs.entrySet()) {
String fileName = blobEntry.getKey();
entry = new ZipEntry(path + fileName);
out.putNextEntry(entry);
try (InputStream in = blobEntry.getValue().getStream()) {
IOUtils.copy(in, out);
}
// DO NOT CALL out.close(), we want to keep writing to it
out.closeEntry();
}
}
/**
* Unfortunately {@link java.util.zip.ZipOutputStream java.util.zip.ZipOutputStream} seems to
* access the extra data directly, so overriding getExtra doesn't help - we need to modify super's
* data directly.
*/
protected void setExtra() {
super.setExtra(ExtraFieldUtils.mergeLocalFileDataData(getAllExtraFieldsNoCopy()));
}
/**
* Unfortunately {@link java.util.zip.ZipOutputStream java.util.zip.ZipOutputStream} seems to
* access the extra data directly, so overriding getExtra doesn't help - we need to modify super's
* data directly.
*
* @since 1.1
*/
protected void setExtra() {
super.setExtra(ExtraFieldUtils.mergeLocalFileDataData(getExtraFields(true)));
}
/** Updates an existing jar file. */
boolean update(InputStream in, OutputStream out, InputStream newManifest, JarIndex jarIndex)
throws IOException {
ZipInputStream zis = new ZipInputStream(in);
ZipOutputStream zos = new JarOutputStream(out);
ZipEntry e = null;
boolean foundManifest = false;
boolean updateOk = true;
if (jarIndex != null) {
addIndex(jarIndex, zos);
}
// put the old entries first, replace if necessary
while ((e = zis.getNextEntry()) != null) {
String name = e.getName();
boolean isManifestEntry = equalsIgnoreCase(name, MANIFEST_NAME);
if ((jarIndex != null && equalsIgnoreCase(name, INDEX_NAME)) || (Mflag && isManifestEntry)) {
continue;
} else if (isManifestEntry && ((newManifest != null) || (ename != null) || (pname != null))) {
foundManifest = true;
if (newManifest != null) {
// Don't read from the newManifest InputStream, as we
// might need it below, and we can't re-read the same data
// twice.
FileInputStream fis = new FileInputStream(mname);
boolean ambiguous = isAmbiguousMainClass(new Manifest(fis));
fis.close();
if (ambiguous) {
return false;
}
}
// Update the manifest.
Manifest old = new Manifest(zis);
if (newManifest != null) {
old.read(newManifest);
}
if (!updateManifest(old, zos)) {
return false;
}
} else {
if (!entryMap.containsKey(name)) { // copy the old stuff
// do our own compression
ZipEntry e2 = new ZipEntry(name);
e2.setMethod(e.getMethod());
e2.setTime(e.getTime());
e2.setComment(e.getComment());
e2.setExtra(e.getExtra());
if (e.getMethod() == ZipEntry.STORED) {
e2.setSize(e.getSize());
e2.setCrc(e.getCrc());
}
zos.putNextEntry(e2);
copy(zis, zos);
} else { // replace with the new files
File f = entryMap.get(name);
addFile(zos, f);
entryMap.remove(name);
entries.remove(f);
}
}
}
// add the remaining new files
for (File f : entries) {
addFile(zos, f);
}
if (!foundManifest) {
if (newManifest != null) {
Manifest m = new Manifest(newManifest);
updateOk = !isAmbiguousMainClass(m);
if (updateOk) {
if (!updateManifest(m, zos)) {
updateOk = false;
}
}
} else if (ename != null || pname != null) {
if (!updateManifest(new Manifest(), zos)) {
updateOk = false;
}
}
}
zis.close();
zos.close();
return updateOk;
}