Update and integrate Suelta.

1 files changed, 0 insertions, 275 deletions

diff --git a/sleekxmpp/thirdparty/suelta/mechanisms/digest_md5.py b/sleekxmpp/thirdparty/suelta/mechanisms/digest_md5.py
deleted file mode 100644
index 890f3e24..00000000
--- a/sleekxmpp/thirdparty/suelta/mechanisms/digest_md5.py
+++ /dev/null
@@ -1,275 +0,0 @@
-import sys
-
-import random
-import hmac
-
-from sleekxmpp.thirdparty.suelta.util import hash, bytes, quote
-from sleekxmpp.thirdparty.suelta.util import num_to_bytes, bytes_to_num
-from sleekxmpp.thirdparty.suelta.sasl import Mechanism, register_mechanism
-from sleekxmpp.thirdparty.suelta.exceptions import SASLError, SASLCancelled
-
-
-
-def parse_challenge(stuff):
-    """
-    """
-    ret = {}
-    var = b''
-    val = b''
-    in_var = True
-    in_quotes = False
-    new = False
-    escaped = False
-    for c in stuff:
-        if sys.version_info >= (3, 0):
-            c = bytes([c])
-        if in_var:
-            if c.isspace():
-                continue
-            if c == b'=':
-                in_var = False
-                new = True
-            else:
-                var += c
-        else:
-            if new:
-                if c == b'"':
-                    in_quotes = True
-                else:
-                    val += c
-                new = False
-            elif in_quotes:
-                if escaped:
-                    escaped = False
-                    val += c
-                else:
-                    if c == b'\\':
-                        escaped = True
-                    elif c == b'"':
-                        in_quotes = False
-                    else:
-                        val += c
-            else:
-                if c == b',':
-                    if var:
-                        ret[var] = val
-                    var = b''
-                    val = b''
-                    in_var = True
-                else:
-                    val += c
-    if var:
-        ret[var] = val
-    return ret
-
-
-class DIGEST_MD5(Mechanism):
-
-    """
-    """
-
-    enc_magic = 'Digest session key to client-to-server signing key magic'
-    dec_magic = 'Digest session key to server-to-client signing key magic'
-
-    def __init__(self, sasl, name):
-        """
-        """
-        super(DIGEST_MD5, self).__init__(sasl, name, 3)
-
-        self.hash = hash(name[7:])
-        if self.hash is None:
-            raise SASLCancelled(self.sasl, self)
-
-        if not self.sasl.tls_active():
-            if not self.sasl.sec_query(self, '-ENCRYPTION, DIGEST-MD5'):
-                raise SASLCancelled(self.sasl, self)
-
-        self._rspauth_okay = False
-        self._digest_uri = None
-        self._a1 = None
-        self._enc_buf = b''
-        self._enc_key = None
-        self._enc_seq = 0
-        self._max_buffer = 65536
-        self._dec_buf = b''
-        self._dec_key = None
-        self._dec_seq = 0
-        self._qops = [b'auth']
-        self._qop = b'auth'
-
-    def MAC(self, seq, msg, key):
-        """
-        """
-        mac = hmac.HMAC(key=key, digestmod=self.hash)
-        seqnum = num_to_bytes(seq)
-        mac.update(seqnum)
-        mac.update(msg)
-        return mac.digest()[:10] + b'\x00\x01' + seqnum
-
-
-    def encode(self, text):
-        """
-        """
-        self._enc_buf += text
-
-    def flush(self):
-        """
-        """
-        result = b''
-        # Leave buffer space for the MAC
-        mbuf = self._max_buffer - 10 - 2 - 4
-
-        while self._enc_buf:
-            msg = self._encbuf[:mbuf]
-            mac = self.MAC(self._enc_seq, msg, self._enc_key, self.hash)
-            self._enc_seq += 1
-            msg += mac
-            result += num_to_bytes(len(msg)) + msg
-            self._enc_buf = self._enc_buf[mbuf:]
-
-        return result
-
-    def decode(self, text):
-        """
-        """
-        self._dec_buf += text
-        result = b''
-
-        while len(self._dec_buf) > 4:
-            num = bytes_to_num(self._dec_buf)
-            if len(self._dec_buf) < (num + 4):
-                return result
-
-            mac = self._dec_buf[4:4 + num]
-            self._dec_buf = self._dec_buf[4 + num:]
-            msg = mac[:-16]
-
-            mac_conf = self.MAC(self._dec_mac, msg, self._dec_key)
-            if mac[-16:] != mac_conf:
-                self._desc_sec = None
-                return result
-
-            self._dec_seq += 1
-            result += msg
-
-        return result
-
-    def response(self):
-        """
-        """
-        vitals = ['username']
-        if not self.has_values(['key_hash']):
-            vitals.append('password')
-        self.check_values(vitals)
-
-        resp = {}
-        if 'auth-int' in self._qops:
-            self._qop = b'auth-int'
-        resp['qop'] = self._qop
-        if 'realm' in self.values:
-            resp['realm'] = quote(self.values['realm'])
-
-        resp['username'] = quote(bytes(self.values['username']))
-        resp['nonce'] = quote(self.values['nonce'])
-        if self.values['nc']:
-            self._cnonce = self.values['cnonce']
-        else:
-            self._cnonce = bytes('%s' % random.random())[2:]
-        resp['cnonce'] = quote(self._cnonce)
-        self.values['nc'] += 1
-        resp['nc'] = bytes('%08x' % self.values['nc'])
-
-        service = bytes(self.sasl.service)
-        host = bytes(self.sasl.host)
-        self._digest_uri = service + b'/' + host
-        resp['digest-uri'] = quote(self._digest_uri)
-
-        a2 = b'AUTHENTICATE:' + self._digest_uri
-        if self._qop != b'auth':
-            a2 += b':00000000000000000000000000000000'
-            resp['maxbuf'] = b'16777215'  # 2**24-1
-        resp['response'] = self.gen_hash(a2)
-        return b','.join([bytes(k) + b'=' + bytes(v) for k, v in resp.items()])
-
-    def gen_hash(self, a2):
-        """
-        """
-        if not self.has_values(['key_hash']):
-            key_hash = self.hash()
-            user = bytes(self.values['username'])
-            password = bytes(self.values['password'])
-            realm = bytes(self.values['realm'])
-            kh = user + b':' + realm + b':' + password
-            key_hash.update(kh)
-            self.values['key_hash'] = key_hash.digest()
-
-        a1 = self.hash(self.values['key_hash'])
-        a1h = b':' + self.values['nonce'] + b':' + self._cnonce
-        a1.update(a1h)
-        response = self.hash()
-        self._a1 = a1.digest()
-        rv = bytes(a1.hexdigest().lower())
-        rv += b':' + self.values['nonce']
-        rv += b':' + bytes('%08x' % self.values['nc'])
-        rv += b':' + self._cnonce
-        rv += b':' + self._qop
-        rv += b':' + bytes(self.hash(a2).hexdigest().lower())
-        response.update(rv)
-        return bytes(response.hexdigest().lower())
-
-    def mutual_auth(self, cmp_hash):
-        """
-        """
-        a2 = b':' + self._digest_uri
-        if self._qop != b'auth':
-            a2 += b':00000000000000000000000000000000'
-        if self.gen_hash(a2) == cmp_hash:
-            self._rspauth_okay = True
-
-    def prep(self):
-        """
-        """
-        if 'password' in self.values:
-            del self.values['password']
-        self.values['cnonce'] = self._cnonce
-
-    def process(self, challenge=None):
-        """
-        """
-        if challenge is None:
-            if self.has_values(['username', 'realm', 'nonce', 'key_hash',
-                                'nc', 'cnonce', 'qops']):
-                self._qops = self.values['qops']
-                return self.response()
-            else:
-                return None
-
-        d = parse_challenge(challenge)
-        if b'rspauth' in d:
-            self.mutual_auth(d[b'rspauth'])
-        else:
-            if b'realm' not in d:
-                d[b'realm'] = self.sasl.def_realm
-            for key in ['nonce', 'realm']:
-                if bytes(key) in d:
-                    self.values[key] = d[bytes(key)]
-            self.values['nc'] = 0
-            self._qops = [b'auth']
-            if b'qop' in d:
-                self._qops = [x.strip() for x in d[b'qop'].split(b',')]
-            self.values['qops'] = self._qops
-            if b'maxbuf' in d:
-                self._max_buffer = int(d[b'maxbuf'])
-            return self.response()
-
-    def okay(self):
-        """
-        """
-        if self._rspauth_okay and self._qop == b'auth-int':
-            self._enc_key = self.hash(self._a1 + self.enc_magic).digest()
-            self._dec_key = self.hash(self._a1 + self.dec_magic).digest()
-            self.encoding = True
-        return self._rspauth_okay
-
-
-register_mechanism('DIGEST-', 30, DIGEST_MD5)