--- a/src/java.base/share/classes/java/util/zip/ZipFile.java Wed Sep 20 02:16:19 2017 +0000
+++ b/src/java.base/share/classes/java/util/zip/ZipFile.java Wed Sep 20 16:41:54 2017 -0700
@@ -1122,30 +1122,36 @@
zerror("zip comment read failed");
}
}
- if (end.cenlen == ZIP64_MAGICVAL ||
- end.cenoff == ZIP64_MAGICVAL ||
- end.centot == ZIP64_MAGICCOUNT)
- {
- // need to find the zip64 end;
- try {
- byte[] loc64 = new byte[ZIP64_LOCHDR];
- if (readFullyAt(loc64, 0, loc64.length, end.endpos - ZIP64_LOCHDR)
- != loc64.length || GETSIG(loc64) != ZIP64_LOCSIG) {
- return end;
- }
- long end64pos = ZIP64_LOCOFF(loc64);
- byte[] end64buf = new byte[ZIP64_ENDHDR];
- if (readFullyAt(end64buf, 0, end64buf.length, end64pos)
- != end64buf.length || GETSIG(end64buf) != ZIP64_ENDSIG) {
- return end;
- }
- // end64 found, re-calcualte everything.
- end.cenlen = ZIP64_ENDSIZ(end64buf);
- end.cenoff = ZIP64_ENDOFF(end64buf);
- end.centot = (int)ZIP64_ENDTOT(end64buf); // assume total < 2g
- end.endpos = end64pos;
- } catch (IOException x) {} // no zip64 loc/end
- }
+ // must check for a zip64 end record; it is always permitted to be present
+ try {
+ byte[] loc64 = new byte[ZIP64_LOCHDR];
+ if (end.endpos < ZIP64_LOCHDR ||
+ readFullyAt(loc64, 0, loc64.length, end.endpos - ZIP64_LOCHDR)
+ != loc64.length || GETSIG(loc64) != ZIP64_LOCSIG) {
+ return end;
+ }
+ long end64pos = ZIP64_LOCOFF(loc64);
+ byte[] end64buf = new byte[ZIP64_ENDHDR];
+ if (readFullyAt(end64buf, 0, end64buf.length, end64pos)
+ != end64buf.length || GETSIG(end64buf) != ZIP64_ENDSIG) {
+ return end;
+ }
+ // end64 candidate found,
+ long cenlen64 = ZIP64_ENDSIZ(end64buf);
+ long cenoff64 = ZIP64_ENDOFF(end64buf);
+ long centot64 = ZIP64_ENDTOT(end64buf);
+ // double-check
+ if (cenlen64 != end.cenlen && end.cenlen != ZIP64_MAGICVAL ||
+ cenoff64 != end.cenoff && end.cenoff != ZIP64_MAGICVAL ||
+ centot64 != end.centot && end.centot != ZIP64_MAGICCOUNT) {
+ return end;
+ }
+ // to use the end64 values
+ end.cenlen = cenlen64;
+ end.cenoff = cenoff64;
+ end.centot = (int)centot64; // assume total < 2g
+ end.endpos = end64pos;
+ } catch (IOException x) {} // no zip64 loc/end
return end;
}
}
--- a/src/jdk.zipfs/share/classes/jdk/nio/zipfs/ZipFileSystem.java Wed Sep 20 02:16:19 2017 +0000
+++ b/src/jdk.zipfs/share/classes/jdk/nio/zipfs/ZipFileSystem.java Wed Sep 20 16:41:54 2017 -0700
@@ -79,6 +79,7 @@
private static final boolean isWindows = AccessController.doPrivileged(
(PrivilegedAction<Boolean>) () -> System.getProperty("os.name")
.startsWith("Windows"));
+ private final boolean forceEnd64;
ZipFileSystem(ZipFileSystemProvider provider,
Path zfpath,
@@ -91,12 +92,13 @@
(String)env.get("encoding") : "UTF-8";
this.noExtt = "false".equals(env.get("zipinfo-time"));
this.useTempFile = TRUE.equals(env.get("useTempFile"));
+ this.forceEnd64 = "true".equals(env.get("forceZIP64End"));
this.provider = provider;
this.zfpath = zfpath;
if (Files.notExists(zfpath)) {
if (createNew) {
try (OutputStream os = Files.newOutputStream(zfpath, CREATE_NEW, WRITE)) {
- new END().write(os, 0);
+ new END().write(os, 0, forceEnd64);
}
} else {
throw new FileSystemNotFoundException(zfpath.toString());
@@ -1000,28 +1002,36 @@
end.cenoff = ENDOFF(buf);
end.comlen = ENDCOM(buf);
end.endpos = pos + i;
- if (end.cenlen == ZIP64_MINVAL ||
- end.cenoff == ZIP64_MINVAL ||
- end.centot == ZIP64_MINVAL32)
- {
- // need to find the zip64 end;
- byte[] loc64 = new byte[ZIP64_LOCHDR];
- if (readFullyAt(loc64, 0, loc64.length, end.endpos - ZIP64_LOCHDR)
- != loc64.length) {
- return end;
- }
- long end64pos = ZIP64_LOCOFF(loc64);
- byte[] end64buf = new byte[ZIP64_ENDHDR];
- if (readFullyAt(end64buf, 0, end64buf.length, end64pos)
- != end64buf.length) {
- return end;
- }
- // end64 found, re-calcualte everything.
- end.cenlen = ZIP64_ENDSIZ(end64buf);
- end.cenoff = ZIP64_ENDOFF(end64buf);
- end.centot = (int)ZIP64_ENDTOT(end64buf); // assume total < 2g
- end.endpos = end64pos;
+ // try if there is zip64 end;
+ byte[] loc64 = new byte[ZIP64_LOCHDR];
+ if (end.endpos < ZIP64_LOCHDR ||
+ readFullyAt(loc64, 0, loc64.length, end.endpos - ZIP64_LOCHDR)
+ != loc64.length ||
+ !locator64SigAt(loc64, 0)) {
+ return end;
+ }
+ long end64pos = ZIP64_LOCOFF(loc64);
+ byte[] end64buf = new byte[ZIP64_ENDHDR];
+ if (readFullyAt(end64buf, 0, end64buf.length, end64pos)
+ != end64buf.length ||
+ !end64SigAt(end64buf, 0)) {
+ return end;
}
+ // end64 found,
+ long cenlen64 = ZIP64_ENDSIZ(end64buf);
+ long cenoff64 = ZIP64_ENDOFF(end64buf);
+ long centot64 = ZIP64_ENDTOT(end64buf);
+ // double-check
+ if (cenlen64 != end.cenlen && end.cenlen != ZIP64_MINVAL ||
+ cenoff64 != end.cenoff && end.cenoff != ZIP64_MINVAL ||
+ centot64 != end.centot && end.centot != ZIP64_MINVAL32) {
+ return end;
+ }
+ // to use the end64 values
+ end.cenlen = cenlen64;
+ end.cenoff = cenoff64;
+ end.centot = (int)centot64; // assume total < 2g
+ end.endpos = end64pos;
return end;
}
}
@@ -1192,7 +1202,7 @@
// sync the zip file system, if there is any udpate
private void sync() throws IOException {
- //System.out.printf("->sync(%s) starting....!%n", toString());
+ // System.out.printf("->sync(%s) starting....!%n", toString());
// check ex-closer
if (!exChClosers.isEmpty()) {
for (ExChannelCloser ecc : exChClosers) {
@@ -1282,7 +1292,7 @@
}
end.centot = elist.size();
end.cenlen = written - end.cenoff;
- end.write(os, written);
+ end.write(os, written, forceEnd64);
}
if (!streams.isEmpty()) {
//
@@ -1712,8 +1722,8 @@
long endpos;
// int disktot;
- void write(OutputStream os, long offset) throws IOException {
- boolean hasZip64 = false;
+ void write(OutputStream os, long offset, boolean forceEnd64) throws IOException {
+ boolean hasZip64 = forceEnd64; // false;
long xlen = cenlen;
long xoff = cenoff;
if (xlen >= ZIP64_MINVAL) {
@@ -1738,8 +1748,8 @@
writeShort(os, 45); // version needed to extract
writeInt(os, 0); // number of this disk
writeInt(os, 0); // central directory start disk
- writeLong(os, centot); // number of directory entires on disk
- writeLong(os, centot); // number of directory entires
+ writeLong(os, centot); // number of directory entries on disk
+ writeLong(os, centot); // number of directory entries
writeLong(os, cenlen); // length of central directory
writeLong(os, cenoff); // offset of central directory
--- a/test/jdk/java/util/zip/ZipFile/ReadZip.java Wed Sep 20 02:16:19 2017 +0000
+++ b/test/jdk/java/util/zip/ZipFile/ReadZip.java Wed Sep 20 16:41:54 2017 -0700
@@ -22,19 +22,27 @@
*/
/* @test
- @bug 4241361 4842702 4985614 6646605 5032358 6923692 6233323 8144977
+ @bug 4241361 4842702 4985614 6646605 5032358 6923692 6233323 8144977 8186464
@summary Make sure we can read a zip file.
@key randomness
*/
import java.io.*;
+import java.net.URI;
import java.nio.file.Files;
+import java.nio.file.FileSystem;
+import java.nio.file.FileSystems;
+import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.NoSuchFileException;
import java.nio.file.StandardCopyOption;
import java.nio.file.StandardOpenOption;
+import java.util.List;
+import java.util.Map;
import java.util.zip.*;
+import static java.nio.charset.StandardCharsets.US_ASCII;
+
public class ReadZip {
private static void unreached (Object o)
throws Exception
@@ -137,8 +145,6 @@
newZip.delete();
}
-
-
// Throw a FNF exception when read a non-existing zip file
try { unreached (new ZipFile(
new File(System.getProperty("test.src", "."),
@@ -146,5 +152,54 @@
+ String.valueOf(new java.util.Random().nextInt())
+ ".zip")));
} catch (NoSuchFileException nsfe) {}
+
+ // read a zip file with ZIP64 end
+ Path path = Paths.get(System.getProperty("test.dir", ""), "end64.zip");
+ try {
+ URI uri = URI.create("jar:" + path.toUri());
+ Map<String, Object> env = Map.of("create", "true", "forceZIP64End", "true");
+ try (FileSystem fs = FileSystems.newFileSystem(uri, env)) {
+ Files.write(fs.getPath("hello"), "hello".getBytes());
+ }
+ try (ZipFile zf = new ZipFile(path.toFile())) {
+ if (!"hello".equals(new String(zf.getInputStream(new ZipEntry("hello"))
+ .readAllBytes(),
+ US_ASCII)))
+ throw new RuntimeException("zipfile: read entry failed");
+ } catch (IOException x) {
+ throw new RuntimeException("zipfile: zip64 end failed");
+ }
+ try (FileSystem fs = FileSystems.newFileSystem(uri, Map.of())) {
+ if (!"hello".equals(new String(Files.readAllBytes(fs.getPath("hello")))))
+ throw new RuntimeException("zipfs: read entry failed");
+ } catch (IOException x) {
+ throw new RuntimeException("zipfile: zip64 end failed");
+ }
+ } finally {
+ Files.deleteIfExists(path);
+ }
+
+ // read a zip file created via "echo hello | zip dst.zip -", which uses
+ // ZIP64 end record
+ if (Files.notExists(Paths.get("/usr/bin/zip")))
+ return;
+ try {
+ Process zip = new ProcessBuilder("zip", path.toString().toString(), "-").start();
+ OutputStream os = zip.getOutputStream();
+ os.write("hello".getBytes(US_ASCII));
+ os.close();
+ zip.waitFor();
+ if (zip.exitValue() == 0 && Files.exists(path)) {
+ try (ZipFile zf = new ZipFile(path.toFile())) {
+ if (!"hello".equals(new String(zf.getInputStream(new ZipEntry("-"))
+ .readAllBytes())))
+ throw new RuntimeException("zipfile: read entry failed");
+ } catch (IOException x) {
+ throw new RuntimeException("zipfile: zip64 end failed");
+ }
+ }
+ } finally {
+ Files.deleteIfExists(path);
+ }
}
}