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NEWS.md

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acefile 0.6.13 2024-11-09

  • Rephrase setup failure notices for clarity.
  • Improve seekable conformance of internal file-like wrappers.
  • Minor maintainability and test improvements.

acefile 0.6.12 2019-03-10

  • Fix an IndexError exception while decompressing corrupt archives, that also manifested for some encrypted ACE archives when using a wrong password (bug reported by Jonathan Leonard).
  • Parse all variants of recovery headers for dumping and diagnostics, but still ignore the actual recovery data (issue #11).
  • Expose the --debug option in the CLI usage information and make its output slightly more understandable.

acefile 0.6.11 2019-02-26

  • Add unit test for WinRAR/unacev2.dll vulnerability CVE-2018-20250 to ensure and verify that acefile is not vulnerable.
  • Migrate to new PGP key 0xE1520675375F5E35 for release signing.

acefile 0.6.10 2018-07-16

  • Fix reading archives from stdin in CLI on Windows.

acefile 0.6.9 2018-05-16

  • Substantially improve filename sanitization to avoid absolute path overwrites, filenames containing reserved characters or matching reserved names.

acefile 0.6.8 2018-01-01

  • Fix build of c extension on platforms without C99 support enabled by default (pull req #12, @joesecurity).

acefile 0.6.7 2017-08-21

  • Make restoration of mtime/atime on extraction optional, default off, and add -r --restore arguments to CLI.
  • Parse NT security information from FILE headers when present and optionally restore file attributes and NT security information on extraction as far as the platform supports it (issue #4).

acefile 0.6.6 2017-08-05

  • Restore mtime and atime on extraction of files (issue #7).
  • Add -V --version arguments to CLI (issue #8).

acefile 0.6.5 2017-08-01

  • Remove ACE 2.0 PIC mode width multiple of planes restriction (issue #6).
  • Improve exception messages and CLI exception handling.
  • Add SIGINFO handler to CLI on platforms that support it.
  • Add 270 additional ACE archives to corpus of test archives.

acefile 0.6.4 2017-07-26

  • Fix signedness of ACE 2.0 SOUND mode diff calculations (issue #5).
  • Add basic debugging facility: acefile.DEBUG = True and CLI --debug hidden option.

acefile 0.6.3 2017-07-23

  • 10% performance increase for larger archives by avoiding excessive LZ77 dictionary truncations.
  • Improve error handling of acebitstream.BitStream.
  • Improve unit test integration and coverage; setup.py test now supported.

acefile 0.6.2 2017-07-19

  • Library API: Export open instead of AceArchive on import * from acefile.
  • Add high-performance BitStream implementation as optional c extension, resulting in over 50% speed increase for LZ77 archives.

acefile 0.6.1 2017-07-16

  • Truncate password to 50 bytes for 1:1 compatibility with official unace.
  • 40% performance increase of LZ77 decompression by reading LZ77 symbols as needed instead of pre-loading whole blocks.
  • Extended API documentation with high-level file format description.

acefile 0.6.0 2017-07-15

  • Library API overhaul towards a stable API:
    • Add AceArchive.is_locked() for testing if an archive is locked.
    • Add constants for compression types and quality.
    • Replace AceArchive.mtime and AceMember.mtime with .datetime in order to avoid confusion as ACE does not have separate modification and creation times.
    • Replace AceMember.orig_filename with AceMember.raw_filename and change type from str to bytes.
    • Replace AceMember.params with decoded AceMember.dicsizebits and AceMember.dicsize, holding the decoded dictionary size as power of two and as effective number of literals, respectively.
    • Replace UnknownMethodError with UnknownCompressionMethodError.
    • Remove the AceFile alias of the AceArchive class.
    • Remove AceArchive.open().
    • Remove TruncatedArchiveError; CorruptedArchiveError is used instead.
  • Ensure all open files are closed on exceptions during object creation.
  • Roughly 10% performance increase by constructing non-standard ACE CRC-32 from python standard library zlib.crc32 instead of using a pure python CRC implementation.
  • Show more metadata in CLI --verbose archive info and --list.
  • Generate API documentation.

acefile 0.5.2 2017-07-03

  • Renamed AceFile to AceArchive, but AceFile is still available as an alias.
  • Hidden AceInfo class from the API, it is still there but not in all.
  • Added all exceptions to the API.
  • Improved filename sanitization.

acefile 0.5.1 2017-07-02

  • Fix regression that broke extraction when directly writing the yielded chunks to files.

acefile 0.5.0 2017-07-01

  • Add multi-volume archive support.
  • All optional function arguments in the library API must now be passed in keyword syntax, not as positional argument, to ensure future extensibility.
  • Added documentation files into PyPI package.
  • Renamed --yes to --batch in the CLI.

acefile 0.4.3 2017-06-27

  • Search the first 1024 sectors of files for the main archive header by default, in line with the reference implementations.
  • Some performance improvement for all decompression modes.

acefile 0.4.2 2017-06-25

  • Decode all currently known NT file attributes.
  • Avoid rare IndexError when decompressing malformed archives.
  • Handle archives with multiple different passwords gracefully in CLI.
  • Print comments in ASCII box with a title to improve clarity in CLI.

acefile 0.4.1 2017-06-24

  • Allow passwords to be specified as str or bytes, not only str.

acefile 0.4.0 2017-06-21

  • Add support for encrypted archives using 160-bit blowfish.
  • Fix division by zero when using the CLI to list an archive containing directory members.

acefile 0.3.0 2017-06-18

  • Implement decompression of archive and file comments.
  • Fix exception in decompression of ACE 1.0 archives using compression method 1 (LZ77).

acefile 0.2.1 2017-06-17

First public release.