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digest_auth.pyo
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Python Compiled Bytecode
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2008-10-13
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95 lines
# Source Generated with Decompyle++
# File: in.pyo (Python 2.5)
import re
from md5 import md5
import random
import time
import httplib
random.seed(int(time.time() * 10))
def H(val):
return md5(val).hexdigest()
def KD(secret, data):
return H('%s:%s' % (secret, data))
def A1(username, realm, passwd, nonce = None, cnonce = None):
if nonce and cnonce:
return '%s:%s:%s:%s:%s' % (username, realm, passwd, nonce, cnonce)
else:
return '%s:%s:%s' % (username, realm, passwd)
def A2(method, uri):
return '%s:%s' % (method, uri)
def dict_fetch(d, k, defval = None):
if d.has_key(k):
return d[k]
return defval
def generate_response(chaldict, uri, username, passwd, method = 'GET', cnonce = None):
authdict = { }
qop = dict_fetch(chaldict, 'qop')
domain = dict_fetch(chaldict, 'domain')
nonce = dict_fetch(chaldict, 'nonce')
stale = dict_fetch(chaldict, 'stale')
algorithm = dict_fetch(chaldict, 'algorithm', 'MD5')
realm = dict_fetch(chaldict, 'realm', 'MD5')
opaque = dict_fetch(chaldict, 'opaque')
nc = '00000001'
if not cnonce:
cnonce = H(str(random.randint(0, 10000000)))[:16]
if algorithm.lower() == 'md5-sess':
a1 = A1(username, realm, passwd, nonce, cnonce)
else:
a1 = A1(username, realm, passwd)
a2 = A2(method, uri)
secret = H(a1)
data = '%s:%s:%s:%s:%s' % (nonce, nc, cnonce, qop, H(a2))
authdict['username'] = '"%s"' % username
authdict['realm'] = '"%s"' % realm
authdict['nonce'] = '"%s"' % nonce
authdict['uri'] = '"%s"' % uri
authdict['response'] = '"%s"' % KD(secret, data)
authdict['qop'] = '"%s"' % qop
authdict['nc'] = nc
authdict['cnonce'] = '"%s"' % cnonce
return authdict
def fetch_challenge(http_header):
m = fetch_challenge.wwwauth_header_re.match(http_header)
if m is None:
raise RuntimeError, 'expecting "WWW-Authenticate header [Basic,Digest]"'
d = dict(challenge = m.groups()[0])
m = fetch_challenge.auth_param_re.search(http_header)
while m is not None:
(k, v) = http_header[m.start():m.end()].split('=')
d[k.lower()] = v[1:-1]
m = fetch_challenge.auth_param_re.search(http_header, m.end())
return d
fetch_challenge.wwwauth_header_re = re.compile('\\s*([bB]asic|[dD]igest)\\s+(?:[\\w]+="[^"]+",?\\s*)?')
fetch_challenge.auth_param_re = re.compile('[\\w]+="[^"]+"')
def build_authorization_arg(authdict):
vallist = []
for k in authdict.keys():
vallist += [
'%s=%s' % (k, authdict[k])]
return 'Digest ' + ', '.join(vallist)
if __name__ == '__main__':
print _copyright