1 files changed, 92 insertions, 0 deletions
diff --git a/modules/libjar/zipwriter/nsZipHeader.h b/modules/libjar/zipwriter/nsZipHeader.h
new file mode 100644
index 0000000000..528730b000
--- /dev/null
+++ b/modules/libjar/zipwriter/nsZipHeader.h
@@ -0,0 +1,92 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef _nsZipHeader_h_
+#define _nsZipHeader_h_
+
+#include "nsString.h"
+#include "nsIOutputStream.h"
+#include "nsIInputStream.h"
+#include "nsIZipReader.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/UniquePtr.h"
+
+// High word is S_IFREG, low word is DOS file attribute
+#define ZIP_ATTRS_FILE 0x80000000
+// High word is S_IFDIR, low word is DOS dir attribute
+#define ZIP_ATTRS_DIRECTORY 0x40000010
+#define PERMISSIONS_FILE 0644
+#define PERMISSIONS_DIR 0755
+
+// Combine file type attributes with unix style permissions
+#define ZIP_ATTRS(p, a) ((p & 0xfff) << 16) | a
+
+class nsZipHeader final : public nsIZipEntry {
+  ~nsZipHeader() {
+    mExtraField = nullptr;
+    mLocalExtraField = nullptr;
+  }
+
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIZIPENTRY
+
+  nsZipHeader()
+      : mCRC(0),
+        mCSize(0),
+        mUSize(0),
+        mEAttr(0),
+        mOffset(0),
+        mFieldLength(0),
+        mLocalFieldLength(0),
+        mVersionMade(0x0300 +
+                     23),    // Generated on Unix by v2.3 (matches infozip)
+        mVersionNeeded(20),  // Requires v2.0 to extract
+        mFlags(0),
+        mMethod(0),
+        mTime(0),
+        mDate(0),
+        mDisk(0),
+        mIAttr(0),
+        mInited(false),
+        mWriteOnClose(false),
+        mExtraField(nullptr),
+        mLocalExtraField(nullptr) {}
+
+  uint32_t mCRC;
+  uint32_t mCSize;
+  uint32_t mUSize;
+  uint32_t mEAttr;
+  uint32_t mOffset;
+  uint32_t mFieldLength;
+  uint32_t mLocalFieldLength;
+  uint16_t mVersionMade;
+  uint16_t mVersionNeeded;
+  uint16_t mFlags;
+  uint16_t mMethod;
+  uint16_t mTime;
+  uint16_t mDate;
+  uint16_t mDisk;
+  uint16_t mIAttr;
+  bool mInited;
+  bool mWriteOnClose;
+  nsCString mName;
+  nsCString mComment;
+  mozilla::UniquePtr<uint8_t[]> mExtraField;
+  mozilla::UniquePtr<uint8_t[]> mLocalExtraField;
+
+  nsresult Init(const nsACString& aPath, PRTime aDate, uint32_t aAttr,
+                uint32_t aOffset);
+  uint32_t GetFileHeaderLength();
+  nsresult WriteFileHeader(nsIOutputStream* aStream);
+  uint32_t GetCDSHeaderLength();
+  nsresult WriteCDSHeader(nsIOutputStream* aStream);
+  nsresult ReadCDSHeader(nsIInputStream* aStream);
+  const uint8_t* GetExtraField(uint16_t aTag, bool aLocal,
+                               uint16_t* aBlockSize);
+  nsresult PadExtraField(uint32_t aOffset, uint16_t aAlignSize);
+};
+
+#endif