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8218021: Have jarsigner preserve posix permission attributes

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Reviewed-by: weijun, lancea, alanb
This commit is contained in:
Sean Coffey 2020-07-02 08:17:31 +00:00
parent dc63bf261b
commit 3d9bad16d1
14 changed files with 292 additions and 17 deletions
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3
src/java.base/share/classes/java/util/zip/ZipEntry.java
View file

@ -57,7 +57,7 @@ public class ZipEntry implements ZipConstants, Cloneable {
int flag = 0; // general purpose flag
byte[] extra; // optional extra field data for entry
String comment; // optional comment string for entry
int posixPerms = -1;// posix permissions
/**
* Compression method for uncompressed entries.
*/
@ -131,6 +131,7 @@ public class ZipEntry implements ZipConstants, Cloneable {
flag = e.flag;
extra = e.extra;
comment = e.comment;
posixPerms = e.posixPerms;
}
/**

15
src/java.base/share/classes/java/util/zip/ZipFile.java
View file

@ -657,6 +657,11 @@ public class ZipFile implements ZipConstants, Closeable {
e.size = CENLEN(cen, pos);
e.csize = CENSIZ(cen, pos);
e.method = CENHOW(cen, pos);
if (CENVEM_FA(cen, pos) == FILE_ATTRIBUTES_UNIX) {
// 12 bits for setuid, setgid, sticky + perms
e.posixPerms = CENATX_PERMS(cen, pos) & 0xFFF;
}
if (elen != 0) {
int start = pos + CENHDR + nlen;
e.setExtra0(Arrays.copyOfRange(cen, start, start + elen), true, false);
@ -1092,6 +1097,16 @@ public class ZipFile implements ZipConstants, Closeable {
public Stream<String> entryNameStream(ZipFile zip) {
return zip.entryNameStream();
}
// only set posix perms value via ZipEntry contructor for now
@Override
public int getPosixPerms(ZipEntry ze) {
return ze.posixPerms;
}
@Override
public void setPosixPerms(ZipEntry ze, int perms) {
ze.posixPerms = perms;
}
}
);
isWindows = VM.getSavedProperty("os.name").contains("Windows");

16
src/java.base/share/classes/java/util/zip/ZipOutputStream.java
View file

@ -506,6 +506,15 @@ public class ZipOutputStream extends DeflaterOutputStream implements ZipConstant
}
}
/**
* Adds information about compatibility of file attribute information
* to a version value.
*/
private int versionMadeBy(ZipEntry e, int version) {
return (e.posixPerms < 0) ? version :
VERSION_MADE_BY_BASE_UNIX | (version & 0xff);
}
/*
* Write central directory (CEN) header for specified entry.
* REMIND: add support for file attributes
@ -537,10 +546,10 @@ public class ZipOutputStream extends DeflaterOutputStream implements ZipConstant
}
writeInt(CENSIG); // CEN header signature
if (hasZip64) {
writeShort(45); // ver 4.5 for zip64
writeShort(versionMadeBy(e,45)); // ver 4.5 for zip64
writeShort(45);
} else {
writeShort(version); // version made by
writeShort(versionMadeBy(e, version)); // version made by
writeShort(version); // version needed to extract
}
writeShort(flag); // general purpose bit flag
@ -597,7 +606,8 @@ public class ZipOutputStream extends DeflaterOutputStream implements ZipConstant
}
writeShort(0); // starting disk number
writeShort(0); // internal file attributes (unused)
writeInt(0); // external file attributes (unused)
// external file attributes, used for storing posix permissions
writeInt(e.posixPerms > 0 ? e.posixPerms << 16 : 0);
writeInt(offset); // relative offset of local header
writeBytes(nameBytes, 0, nameBytes.length);

13
src/java.base/share/classes/java/util/zip/ZipUtils.java
View file

@ -215,6 +215,17 @@ class ZipUtils {
return LG(b, 0);
}
/*
* File attribute compatibility types of CEN field "version made by"
*/
static final int FILE_ATTRIBUTES_UNIX = 3; // Unix
/*
* Base values for CEN field "version made by"
*/
static final int VERSION_MADE_BY_BASE_UNIX = FILE_ATTRIBUTES_UNIX << 8; // Unix
// local file (LOC) header fields
static final long LOCSIG(byte[] b) { return LG(b, 0); } // signature
static final int LOCVER(byte[] b) { return SH(b, 4); } // version needed to extract
@ -250,6 +261,7 @@ class ZipUtils {
// central directory header (CEN) fields
static final long CENSIG(byte[] b, int pos) { return LG(b, pos + 0); }
static final int CENVEM(byte[] b, int pos) { return SH(b, pos + 4); }
static final int CENVEM_FA(byte[] b, int pos) { return CH(b, pos + 5); } // file attribute compatibility
static final int CENVER(byte[] b, int pos) { return SH(b, pos + 6); }
static final int CENFLG(byte[] b, int pos) { return SH(b, pos + 8); }
static final int CENHOW(byte[] b, int pos) { return SH(b, pos + 10);}
@ -263,6 +275,7 @@ class ZipUtils {
static final int CENDSK(byte[] b, int pos) { return SH(b, pos + 34);}
static final int CENATT(byte[] b, int pos) { return SH(b, pos + 36);}
static final long CENATX(byte[] b, int pos) { return LG(b, pos + 38);}
static final int CENATX_PERMS(byte[] b, int pos) { return SH(b, pos + 40);} // posix permission data
static final long CENOFF(byte[] b, int pos) { return LG(b, pos + 42);}
// The END header is followed by a variable length comment of size < 64k.