TrueZIP 4.0 has been released
(December 19th, 2005)
This is a major update. All users are recommended to upgrade.
In order of priority:
- Enhanced: TrueZIP now correctly recognizes and handles all kinds of false positive ZIP compatible files. A false positive ZIP compatible file is a file or directory or a file or directory entry in an enclosing ZIP compatible file which looks like a ZIP compatible file by its path name (e.g. archive<<.zip>> or outer.zip/inner.zip/secret<<.tzp>>), but actually is a plain file or directory or an RAES encrypted ZIP file which's password could not be successfully requested from the user. The previous version only recognized and handled false positives which were actually plain files in the file system. Please note that TrueZIP does not (and never did and presumably never will) check the existence or integrity of the manifest in a JAR, EAR or WAR.
- Enhanced/fixed: TrueZIP now provides its own implementation of the standard ZIP character set IBM437 (a.k.a. CP437, the original IBM PC character set for the United States and others). Previous versions silently reverted to UTF-8 (this is what Sun's java.util.zip package erratically uses) if CP437 is not installed in the JRE. However, at least on the Windows platform, CP437 is only installed if the user/administrator chose to install the international character sets in $java.home/lib/charsets.jar, which is more or less unlikely.
- Fixed: Primarily a lot of bugs in the exception handling code (see above), but most notably the methods <<<de.schlichtherle.io.File.renameTo(java.io.File) and de.schlichtherle.io.File.archiveCopyAllTo(*) now treat directory timestamps correctly and refuse to rename/copy into themselves.
- New/changed: The class de.schlichtherle.crypto.io.PasswdManager, which is used to prompt users for passwords for RAES encrypted ZIP files, has been refactored to the package de.schlichtherle.crypto.io and heavily redesigned: For end users, the new version supports cancellation of password prompts for new encrypted ZIP files and automatically highlights file paths when they change. For application developers, a mechanism has been added to provide a custom password manager in case they don't want to use the default Swing based implementation. For more information, please refer to the Javadoc for the class de.schlichtherle.crypto.io.PasswdManager.
- New: Some new methods have been added to the File class for convenience. Please check out the Javadoc for the class de.schlichtherle.io.File.
- New: New utility methods and main classes have been added to provide encryption and decryption of ordinary files into and from the RAES format. Please check out the source of the new main classes encrypt, decrypt and the JavaDoc for the utility class de.schlichtherle.io.RaesFileUtils.
- Enhanced: For large ZIP compatible files (e.g. 2 GB) with thousands of entries (e.g. 24k) there is now a huge performance increase to mount the ZIP file system and update the target ZIP file.
- New/changed: The interface de.schlichtherle.io.rof.ReadOnlyFile, which is part of the low level API and is used to read the ZIP file structure from plain or RAES encrypted files, and its companion implementation classes have been refactored to their own package de.schlichtherle.io.rof. New implementation classes which use NIO channels and memory mapped files are provided, too. Please note that these classes are not used within TrueZIP because of some painful bugs in the J2SE API on certain platforms (e.g. Windows and Linux). Please use where appropriate only.
- Enhanced: The logging of the ZipController class has been enhanced. Please refer to the configuration file logging.properties for more information.
Please note that you should recompile your applications if you are using older versions of TrueZIP, unless you are only using (i.e. not implementing or subclassing interfaces or classes in) the High-Level-API, which consists of all classes in the package de.schlichtherle.io and the class de.schlichtherle.io.swing.FileSystemView. This is because the low level API has been heavily refactored and some of these changes emanate into the High-Level-API in order to support the new password manager for RAES encrypted ZIP files.