VirtualMailManager/pycompat/hashlib.py
branchv0.7.x
changeset 636 27334cfc0c90
parent 635 54172669bbae
child 637 ca6621caff2f
--- a/VirtualMailManager/pycompat/hashlib.py	Sat Nov 03 16:22:48 2012 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,58 +0,0 @@
-# -*- coding: UTF-8 -*-
-# Copyright (c) 2010 - 2012, Pascal Volk
-# See COPYING for distribution information.
-
-"""
-    VirtualMailManager.pycompat.hashlib
-
-    VirtualMailManager's minimal hashlib emulation for Python 2.4
-
-    hashlib.md5(...), hashlib.sha1(...), hashlib.new('md5', ...) and
-    hashlib.new('sha1', ...) will work always.
-
-    When the PyCrypto module <http://www.pycrypto.org/> could be found in
-    sys.path hashlib.new('md4', ...) will also work.
-
-    With PyCrypto >= 2.1.0alpha1 hashlib.new('sha256', ...) and
-    hashlib.sha256(...) becomes functional.
-"""
-
-
-import md5 as _md5
-import sha as _sha1
-
-try:
-    import Crypto
-except ImportError:
-    _md4 = None
-    SHA256 = None
-else:
-    from Crypto.Hash import MD4 as _md4
-    if hasattr(Crypto, 'version_info'):  # <- Available since v2.1.0alpha1
-        from Crypto.Hash import SHA256   # SHA256 works since v2.1.0alpha1
-        sha256 = SHA256.new
-    else:
-        SHA256 = None
-    del Crypto
-
-
-compat = 0x01
-md5 = _md5.new
-sha1 = _sha1.new
-
-
-def new(name, string=''):
-    """Return a new hashing object using the named algorithm, optionally
-    initialized with the provided string.
-    """
-    if name in ('md5', 'MD5'):
-        return _md5.new(string)
-    if name in ('sha1', 'SHA1'):
-        return _sha1.new(string)
-    if not _md4:
-        raise ValueError('unsupported hash type')
-    if name in ('md4', 'MD4'):
-        return _md4.new(string)
-    if name in ('sha256', 'SHA256') and SHA256:
-        return SHA256.new(string)
-    raise ValueError('unsupported hash type')