Function _codecs_open

lib/core/compat.py:389–427

Replacement for deprecated codecs.open() entry point with sqlmap-friendly behavior. - If encoding is None: return io.open(...) as-is. - If encoding is set: force underlying binary mode and wrap via StreamReaderWriter (like codecs.open()). - For write-ish modes: return a wrapp

(filename, mode="r", encoding=None, errors="strict", buffering=-1)

def _codecs_open(filename, mode="r", encoding=None, errors="strict", buffering=-1):
    """
    Replacement for deprecated codecs.open() entry point with sqlmap-friendly behavior.

    - If encoding is None: return io.open(...) as-is.
    - If encoding is set: force underlying binary mode and wrap via StreamReaderWriter
      (like codecs.open()).
    - For write-ish modes: return a wrapper that also accepts bytes on .write().
    - Handles buffering=1 in binary mode by downgrading underlying buffering to -1,
      while optionally preserving "flush on newline" behavior in the wrapper.
    """
    if encoding is None:
        return io.open(filename, mode, buffering=buffering)

    bmode = mode
    if "b" not in bmode:
        bmode += "b"

    # Avoid line-buffering warnings/errors on binary streams
    line_buffered = (buffering == 1)
    if line_buffered:
        buffering = -1

    f = io.open(filename, bmode, buffering=buffering)

    try:
        info = codecs.lookup(encoding)
        srw = codecs.StreamReaderWriter(f, info.streamreader, info.streamwriter, errors)
        srw.encoding = encoding

        if _is_write_mode(mode):
            return MixedWriteTextIO(srw, encoding, errors, line_buffered=line_buffered)

        return srw
    except Exception:
        try:
            f.close()
        finally:
            raise

codecs_open = _codecs_open if sys.version_info >= (3, 14) else codecs.open