mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
85 lines
2.8 KiB
85 lines
2.8 KiB
#
|
|
# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 The SCons Foundation
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining
|
|
# a copy of this software and associated documentation files (the
|
|
# "Software"), to deal in the Software without restriction, including
|
|
# without limitation the rights to use, copy, modify, merge, publish,
|
|
# distribute, sublicense, and/or sell copies of the Software, and to
|
|
# permit persons to whom the Software is furnished to do so, subject to
|
|
# the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included
|
|
# in all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
|
|
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
|
|
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
#
|
|
|
|
__doc__ = """
|
|
hashlib backwards-compatibility module for older (pre-2.5) Python versions
|
|
|
|
This does not not NOT (repeat, *NOT*) provide complete hashlib
|
|
functionality. It only wraps the portions of MD5 functionality used
|
|
by SCons, in an interface that looks like hashlib (or enough for our
|
|
purposes, anyway). In fact, this module will raise an ImportError if
|
|
the underlying md5 module isn't available.
|
|
"""
|
|
|
|
__revision__ = "src/engine/SCons/compat/_scons_hashlib.py 3842 2008/12/20 22:59:52 scons"
|
|
|
|
import md5
|
|
import string
|
|
|
|
class md5obj:
|
|
|
|
md5_module = md5
|
|
|
|
def __init__(self, name, string=''):
|
|
if not name in ('MD5', 'md5'):
|
|
raise ValueError, "unsupported hash type"
|
|
self.name = 'md5'
|
|
self.m = self.md5_module.md5()
|
|
|
|
def __repr__(self):
|
|
return '<%s HASH object @ %#x>' % (self.name, id(self))
|
|
|
|
def copy(self):
|
|
import copy
|
|
result = copy.copy(self)
|
|
result.m = self.m.copy()
|
|
return result
|
|
|
|
def digest(self):
|
|
return self.m.digest()
|
|
|
|
def update(self, arg):
|
|
return self.m.update(arg)
|
|
|
|
if hasattr(md5.md5(), 'hexdigest'):
|
|
|
|
def hexdigest(self):
|
|
return self.m.hexdigest()
|
|
|
|
else:
|
|
|
|
# Objects created by the underlying md5 module have no native
|
|
# hexdigest() method (*cough* 1.5.2 *cough*), so provide an
|
|
# equivalent lifted from elsewhere.
|
|
def hexdigest(self):
|
|
h = string.hexdigits
|
|
r = ''
|
|
for c in self.digest():
|
|
i = ord(c)
|
|
r = r + h[(i >> 4) & 0xF] + h[i & 0xF]
|
|
return r
|
|
|
|
new = md5obj
|
|
|
|
def md5(string=''):
|
|
return md5obj('md5', string)
|
|
|