[web] set Vary response header to "Accept-Language" when using content negotiation
This is slightly annoying because the response actually only varies
based on the language we decide to send, which has much fewer possible
values than Accept-Language, but that's not in the request, so we can't
easily use it. Deployments using varnish or similar and controlling the
set of available languages will likely want to override this to allow
reasonable amounts of caching.
Closes #2105812
# md5crypt.py
#
# 0423.2000 by michal wallace http://www.sabren.com/
# based on perl's Crypt::PasswdMD5 by Luis Munoz (lem@cantv.net)
# based on /usr/src/libcrypt/crypt.c from FreeBSD 2.2.5-RELEASE
#
# MANY THANKS TO
#
# Carey Evans - http://home.clear.net.nz/pages/c.evans/
# Dennis Marti - http://users.starpower.net/marti1/
#
# For the patches that got this thing working!
#
# modification by logilab:
# * remove usage of the string module
# * don't include the magic string in the output string
# for true crypt.crypt compatibility
# * use hashlib module instead of md5
#########################################################
"""md5crypt.py - Provides interoperable MD5-based crypt() function
SYNOPSIS
import md5crypt.py
cryptedpassword = md5crypt.md5crypt(password, salt);
DESCRIPTION
unix_md5_crypt() provides a crypt()-compatible interface to the
rather new MD5-based crypt() function found in modern operating systems.
It's based on the implementation found on FreeBSD 2.2.[56]-RELEASE and
contains the following license in it:
"THE BEER-WARE LICENSE" (Revision 42):
<phk@login.dknet.dk> wrote this file. As long as you retain this notice you
can do whatever you want with this stuff. If we meet some day, and you think
this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
"""
MAGIC = '$1$' # Magic string
ITOA64 = "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
from hashlib import md5 # pylint: disable=E0611
def to64 (v, n):
ret = ''
while (n - 1 >= 0):
n = n - 1
ret = ret + ITOA64[v & 0x3f]
v = v >> 6
return ret
def crypt(pw, salt):
if isinstance(pw, unicode):
pw = pw.encode('utf-8')
# Take care of the magic string if present
if salt.startswith(MAGIC):
salt = salt[len(MAGIC):]
# salt can have up to 8 characters:
salt = salt.split('$', 1)[0]
salt = salt[:8]
ctx = pw + MAGIC + salt
final = md5(pw + salt + pw).digest()
for pl in xrange(len(pw), 0, -16):
if pl > 16:
ctx = ctx + final[:16]
else:
ctx = ctx + final[:pl]
# Now the 'weird' xform (??)
i = len(pw)
while i:
if i & 1:
ctx = ctx + chr(0) #if ($i & 1) { $ctx->add(pack("C", 0)); }
else:
ctx = ctx + pw[0]
i = i >> 1
final = md5(ctx).digest()
# The following is supposed to make
# things run slower.
# my question: WTF???
for i in xrange(1000):
ctx1 = ''
if i & 1:
ctx1 = ctx1 + pw
else:
ctx1 = ctx1 + final[:16]
if i % 3:
ctx1 = ctx1 + salt
if i % 7:
ctx1 = ctx1 + pw
if i & 1:
ctx1 = ctx1 + final[:16]
else:
ctx1 = ctx1 + pw
final = md5(ctx1).digest()
# Final xform
passwd = ''
passwd = passwd + to64((int(ord(final[0])) << 16)
|(int(ord(final[6])) << 8)
|(int(ord(final[12]))),4)
passwd = passwd + to64((int(ord(final[1])) << 16)
|(int(ord(final[7])) << 8)
|(int(ord(final[13]))), 4)
passwd = passwd + to64((int(ord(final[2])) << 16)
|(int(ord(final[8])) << 8)
|(int(ord(final[14]))), 4)
passwd = passwd + to64((int(ord(final[3])) << 16)
|(int(ord(final[9])) << 8)
|(int(ord(final[15]))), 4)
passwd = passwd + to64((int(ord(final[4])) << 16)
|(int(ord(final[10])) << 8)
|(int(ord(final[5]))), 4)
passwd = passwd + to64((int(ord(final[11]))), 2)
return passwd