def encode(self, inp):
#
# Invoke binascii.b2a_base64 iteratively with
# short even length buffers, strip the trailing
# line feed from the result and append. "Even"
# means a number that factors to both 6 and 8,
# so when it gets to the end of the 8-bit input
# there's no partial 6-bit output.
#
oup = ''
while inp:
if len(inp) > 48:
t = inp[:48]
inp = inp[48:]
else:
t = inp
inp = ''
e = binascii.b2a_base64(t)
if e:
oup = oup + e[:-1]
return oup
python类b2a_base64()的实例源码
def encode(self, inp):
#
# Invoke binascii.b2a_base64 iteratively with
# short even length buffers, strip the trailing
# line feed from the result and append. "Even"
# means a number that factors to both 6 and 8,
# so when it gets to the end of the 8-bit input
# there's no partial 6-bit output.
#
oup = ''
while inp:
if len(inp) > 48:
t = inp[:48]
inp = inp[48:]
else:
t = inp
inp = ''
e = binascii.b2a_base64(t)
if e:
oup = oup + e[:-1]
return oup
def _oauth_signature(consumer_token, method, url, parameters={}, token=None):
"""Calculates the HMAC-SHA1 OAuth signature for the given request.
See http://oauth.net/core/1.0/#signing_process
"""
parts = urlparse.urlparse(url)
scheme, netloc, path = parts[:3]
normalized_url = scheme.lower() + "://" + netloc.lower() + path
base_elems = []
base_elems.append(method.upper())
base_elems.append(normalized_url)
base_elems.append("&".join("%s=%s" % (k, _oauth_escape(str(v)))
for k, v in sorted(parameters.items())))
base_string = "&".join(_oauth_escape(e) for e in base_elems)
key_elems = [escape.utf8(consumer_token["secret"])]
key_elems.append(escape.utf8(token["secret"] if token else ""))
key = b"&".join(key_elems)
hash = hmac.new(key, escape.utf8(base_string), hashlib.sha1)
return binascii.b2a_base64(hash.digest())[:-1]
def _oauth10a_signature(consumer_token, method, url, parameters={}, token=None):
"""Calculates the HMAC-SHA1 OAuth 1.0a signature for the given request.
See http://oauth.net/core/1.0a/#signing_process
"""
parts = urlparse.urlparse(url)
scheme, netloc, path = parts[:3]
normalized_url = scheme.lower() + "://" + netloc.lower() + path
base_elems = []
base_elems.append(method.upper())
base_elems.append(normalized_url)
base_elems.append("&".join("%s=%s" % (k, _oauth_escape(str(v)))
for k, v in sorted(parameters.items())))
base_string = "&".join(_oauth_escape(e) for e in base_elems)
key_elems = [escape.utf8(urllib_parse.quote(consumer_token["secret"], safe='~'))]
key_elems.append(escape.utf8(urllib_parse.quote(token["secret"], safe='~') if token else ""))
key = b"&".join(key_elems)
hash = hmac.new(key, escape.utf8(base_string), hashlib.sha1)
return binascii.b2a_base64(hash.digest())[:-1]
def _oauth_signature(consumer_token, method, url, parameters={}, token=None):
"""Calculates the HMAC-SHA1 OAuth signature for the given request.
See http://oauth.net/core/1.0/#signing_process
"""
parts = urlparse.urlparse(url)
scheme, netloc, path = parts[:3]
normalized_url = scheme.lower() + "://" + netloc.lower() + path
base_elems = []
base_elems.append(method.upper())
base_elems.append(normalized_url)
base_elems.append("&".join("%s=%s" % (k, _oauth_escape(str(v)))
for k, v in sorted(parameters.items())))
base_string = "&".join(_oauth_escape(e) for e in base_elems)
key_elems = [escape.utf8(consumer_token["secret"])]
key_elems.append(escape.utf8(token["secret"] if token else ""))
key = b"&".join(key_elems)
hash = hmac.new(key, escape.utf8(base_string), hashlib.sha1)
return binascii.b2a_base64(hash.digest())[:-1]
def _oauth10a_signature(consumer_token, method, url, parameters={}, token=None):
"""Calculates the HMAC-SHA1 OAuth 1.0a signature for the given request.
See http://oauth.net/core/1.0a/#signing_process
"""
parts = urlparse.urlparse(url)
scheme, netloc, path = parts[:3]
normalized_url = scheme.lower() + "://" + netloc.lower() + path
base_elems = []
base_elems.append(method.upper())
base_elems.append(normalized_url)
base_elems.append("&".join("%s=%s" % (k, _oauth_escape(str(v)))
for k, v in sorted(parameters.items())))
base_string = "&".join(_oauth_escape(e) for e in base_elems)
key_elems = [escape.utf8(urllib_parse.quote(consumer_token["secret"], safe='~'))]
key_elems.append(escape.utf8(urllib_parse.quote(token["secret"], safe='~') if token else ""))
key = b"&".join(key_elems)
hash = hmac.new(key, escape.utf8(base_string), hashlib.sha1)
return binascii.b2a_base64(hash.digest())[:-1]
def _oauth_signature(consumer_token, method, url, parameters={}, token=None):
"""Calculates the HMAC-SHA1 OAuth signature for the given request.
See http://oauth.net/core/1.0/#signing_process
"""
parts = urlparse.urlparse(url)
scheme, netloc, path = parts[:3]
normalized_url = scheme.lower() + "://" + netloc.lower() + path
base_elems = []
base_elems.append(method.upper())
base_elems.append(normalized_url)
base_elems.append("&".join("%s=%s" % (k, _oauth_escape(str(v)))
for k, v in sorted(parameters.items())))
base_string = "&".join(_oauth_escape(e) for e in base_elems)
key_elems = [escape.utf8(consumer_token["secret"])]
key_elems.append(escape.utf8(token["secret"] if token else ""))
key = b"&".join(key_elems)
hash = hmac.new(key, escape.utf8(base_string), hashlib.sha1)
return binascii.b2a_base64(hash.digest())[:-1]
def encode(self, inp):
#
# Invoke binascii.b2a_base64 iteratively with
# short even length buffers, strip the trailing
# line feed from the result and append. "Even"
# means a number that factors to both 6 and 8,
# so when it gets to the end of the 8-bit input
# there's no partial 6-bit output.
#
oup = ''
while inp:
if len(inp) > 48:
t = inp[:48]
inp = inp[48:]
else:
t = inp
inp = ''
e = binascii.b2a_base64(t)
if e:
oup = oup + e[:-1]
return oup
def build_signature(self, oauth_request, consumer, token):
key, base_string = self.build_signature_base_string(oauth_request,
consumer,
token)
# Fetch the private key cert based on the request
cert = self._fetch_private_cert(oauth_request)
# Pull the private key from the certificate
privatekey = keyfactory.parsePrivateKey(cert)
# Convert base_string to bytes
#base_string_bytes = cryptomath.createByteArraySequence(base_string)
# Sign using the key
signed = privatekey.hashAndSign(base_string)
return binascii.b2a_base64(signed)[:-1]
def body_encode(s, maxlinelen=76, eol=NL):
r"""Encode a string with base64.
Each line will be wrapped at, at most, maxlinelen characters (defaults to
76 characters).
Each line of encoded text will end with eol, which defaults to "\n". Set
this to "\r\n" if you will be using the result of this function directly
in an email.
"""
if not s:
return s
encvec = []
max_unencoded = maxlinelen * 3 // 4
for i in range(0, len(s), max_unencoded):
# BAW: should encode() inherit b2a_base64()'s dubious behavior in
# adding a newline to the encoded string?
enc = b2a_base64(s[i:i + max_unencoded]).decode("ascii")
if enc.endswith(NL) and eol != NL:
enc = enc[:-1] + eol
encvec.append(enc)
return EMPTYSTRING.join(encvec)
def sign_rsa_sha1(base_string, rsa_private_key):
"""**RSA-SHA1**
Per `section 3.4.3`_ of the spec.
The "RSA-SHA1" signature method uses the RSASSA-PKCS1-v1_5 signature
algorithm as defined in `RFC3447, Section 8.2`_ (also known as
PKCS#1), using SHA-1 as the hash function for EMSA-PKCS1-v1_5. To
use this method, the client MUST have established client credentials
with the server that included its RSA public key (in a manner that is
beyond the scope of this specification).
.. _`section 3.4.3`: http://tools.ietf.org/html/rfc5849#section-3.4.3
.. _`RFC3447, Section 8.2`: http://tools.ietf.org/html/rfc3447#section-8.2
"""
if isinstance(base_string, unicode_type):
base_string = base_string.encode('utf-8')
# TODO: finish RSA documentation
alg = _jwt_rs1_signing_algorithm()
key = _prepare_key_plus(alg, rsa_private_key)
s=alg.sign(base_string, key)
return binascii.b2a_base64(s)[:-1].decode('utf-8')
def sign_rsa_sha1(base_string, rsa_private_key):
"""**RSA-SHA1**
Per `section 3.4.3`_ of the spec.
The "RSA-SHA1" signature method uses the RSASSA-PKCS1-v1_5 signature
algorithm as defined in `RFC3447, Section 8.2`_ (also known as
PKCS#1), using SHA-1 as the hash function for EMSA-PKCS1-v1_5. To
use this method, the client MUST have established client credentials
with the server that included its RSA public key (in a manner that is
beyond the scope of this specification).
.. _`section 3.4.3`: http://tools.ietf.org/html/rfc5849#section-3.4.3
.. _`RFC3447, Section 8.2`: http://tools.ietf.org/html/rfc3447#section-8.2
"""
if isinstance(base_string, unicode_type):
base_string = base_string.encode('utf-8')
# TODO: finish RSA documentation
alg = _jwt_rs1_signing_algorithm()
key = _prepare_key_plus(alg, rsa_private_key)
s=alg.sign(base_string, key)
return binascii.b2a_base64(s)[:-1].decode('utf-8')
def sign_rsa_sha1(base_string, rsa_private_key):
"""**RSA-SHA1**
Per `section 3.4.3`_ of the spec.
The "RSA-SHA1" signature method uses the RSASSA-PKCS1-v1_5 signature
algorithm as defined in `RFC3447, Section 8.2`_ (also known as
PKCS#1), using SHA-1 as the hash function for EMSA-PKCS1-v1_5. To
use this method, the client MUST have established client credentials
with the server that included its RSA public key (in a manner that is
beyond the scope of this specification).
.. _`section 3.4.3`: http://tools.ietf.org/html/rfc5849#section-3.4.3
.. _`RFC3447, Section 8.2`: http://tools.ietf.org/html/rfc3447#section-8.2
"""
if isinstance(base_string, unicode_type):
base_string = base_string.encode('utf-8')
# TODO: finish RSA documentation
alg = _jwt_rs1_signing_algorithm()
key = _prepare_key_plus(alg, rsa_private_key)
s=alg.sign(base_string, key)
return binascii.b2a_base64(s)[:-1].decode('utf-8')
def encode(self, inp):
#
# Invoke binascii.b2a_base64 iteratively with
# short even length buffers, strip the trailing
# line feed from the result and append. "Even"
# means a number that factors to both 6 and 8,
# so when it gets to the end of the 8-bit input
# there's no partial 6-bit output.
#
oup = ''
while inp:
if len(inp) > 48:
t = inp[:48]
inp = inp[48:]
else:
t = inp
inp = ''
e = binascii.b2a_base64(t)
if e:
oup = oup + e[:-1]
return oup
def body_encode(s, maxlinelen=76, eol=NL):
r"""Encode a string with base64.
Each line will be wrapped at, at most, maxlinelen characters (defaults to
76 characters).
Each line of encoded text will end with eol, which defaults to "\n". Set
this to "\r\n" if you will be using the result of this function directly
in an email.
"""
if not s:
return s
encvec = []
max_unencoded = maxlinelen * 3 // 4
for i in range(0, len(s), max_unencoded):
# BAW: should encode() inherit b2a_base64()'s dubious behavior in
# adding a newline to the encoded string?
enc = b2a_base64(s[i:i + max_unencoded]).decode("ascii")
if enc.endswith(NL) and eol != NL:
enc = enc[:-1] + eol
encvec.append(enc)
return EMPTYSTRING.join(encvec)
def encode(self, inp):
#
# Invoke binascii.b2a_base64 iteratively with
# short even length buffers, strip the trailing
# line feed from the result and append. "Even"
# means a number that factors to both 6 and 8,
# so when it gets to the end of the 8-bit input
# there's no partial 6-bit output.
#
oup = ''
while inp:
if len(inp) > 48:
t = inp[:48]
inp = inp[48:]
else:
t = inp
inp = ''
e = binascii.b2a_base64(t)
if e:
oup = oup + e[:-1]
return oup
def encode(self, inp):
#
# Invoke binascii.b2a_base64 iteratively with
# short even length buffers, strip the trailing
# line feed from the result and append. "Even"
# means a number that factors to both 6 and 8,
# so when it gets to the end of the 8-bit input
# there's no partial 6-bit output.
#
oup = ''
while inp:
if len(inp) > 48:
t = inp[:48]
inp = inp[48:]
else:
t = inp
inp = ''
e = binascii.b2a_base64(t)
if e:
oup = oup + e[:-1]
return oup
def body_encode(s, maxlinelen=76, eol=NL):
r"""Encode a string with base64.
Each line will be wrapped at, at most, maxlinelen characters (defaults to
76 characters).
Each line of encoded text will end with eol, which defaults to "\n". Set
this to "\r\n" if you will be using the result of this function directly
in an email.
"""
if not s:
return s
encvec = []
max_unencoded = maxlinelen * 3 // 4
for i in range(0, len(s), max_unencoded):
# BAW: should encode() inherit b2a_base64()'s dubious behavior in
# adding a newline to the encoded string?
enc = b2a_base64(s[i:i + max_unencoded]).decode("ascii")
if enc.endswith(NL) and eol != NL:
enc = enc[:-1] + eol
encvec.append(enc)
return EMPTYSTRING.join(encvec)
def getValues(request):
context = {}
if request.method == 'POST':
s0 = Series.objects.get(name=request.POST.get('series'))
dateFrom = dt.datetime.strptime(request.POST.get('from'), "%a, %d %b %Y %H:%M:%S %Z").replace(tzinfo = None)
dateTo = dt.datetime.strptime(request.POST.get('to'), "%a, %d %b %Y %H:%M:%S %Z").replace(tzinfo = None)
result = Value.objects.filter(series=s0, date__gte=dateFrom, date__lt=dateTo).order_by('date')
if not result:
tmp = Value.objects.filter(series=s0, date__lt=dateFrom)
if tmp:
tmp = tmp.latest('date')
reference = tmp.date
dateFrom = reference.replace(year=reference.year-1)
result = Value.objects.filter(series=s0).filter(date__gte=dateFrom, date__lt=dateTo).order_by('date')
if s0.encryptionKey==None:
values = [{'x':obj.date.isoformat(), 'y':str(obj.recordOpen)} for obj in result]
else:
values = [{'x':obj.date.isoformat(), 'y':binascii.b2a_base64(obj.record).decode("utf-8")} for obj in result]
context = {'values': values}
return JsonResponse(context)
def _do_server_token(self, event):
client_final_no_proof = "c=%s,r=%s" % ( scram.standard_b64encode(b'n,,').decode() , self._server_nonce )
auth_msg = "%s,%s,%s" % ( self._client_second_msg, self._server_first_msg, client_final_no_proof )
client_key = hmac.new(unhexlify(scram.salted_password(self._server_salt, self._server_iterations, self._algorithm_name, self._session._password)), "Client Key".encode('UTF-8'), self._algorithm).hexdigest()
stored_key = scram._hash_sha256(unhexlify(client_key), self._algorithm)
client_signature = hmac.new( unhexlify(stored_key), auth_msg.encode('utf-8'), self._algorithm).hexdigest()
client_proof = scram._xor(client_key, client_signature)
client_proof_encode = b2a_base64(unhexlify(client_proof)).decode()
client_final = client_final_no_proof + ",p=" + client_proof_encode
client_final_base64 = scram.base64_no_padding(client_final)
final_msg = "scram handshaketoken=%s,data=%s" % (self._handshake_token , client_final_base64)
try:
self._session._get('%s/ui' % self._login_uri,
callback=self._validate_server_token,
headers={"Authorization": final_msg},
exclude_cookies=True,
exclude_headers=True, api=False)
except Exception as e:
self._state_machine.exception(result=AsynchronousException())
def _build_token(self):
nonce = str(uuid.uuid4())
base64nonce = binascii.b2a_base64(binascii.a2b_qp(nonce))
created_date = datetime.utcnow().isoformat() + 'Z'
sha_object = sha.new(nonce + created_date + self.secret)
password_64 = binascii.b2a_base64(sha_object.digest())
properties = {
"Username": self.username,
"PasswordDigest": password_64.strip(),
"Nonce": base64nonce.strip(),
"Created": created_date,
}
header = 'UsernameToken ' + self._serialize_header(properties)
return {'X-WSSE': header}
def _build_token(self):
nonce = str(uuid.uuid4())
base64nonce = binascii.b2a_base64(binascii.a2b_qp(nonce))
created_date = datetime.utcnow().isoformat() + 'Z'
sha_object = sha.new(nonce + created_date + self.secret)
password_64 = binascii.b2a_base64(sha_object.digest())
properties = {
"Username": self.username,
"PasswordDigest": password_64.strip(),
"Nonce": base64nonce.strip(),
"Created": created_date,
}
header = 'UsernameToken ' + self._serialize_header(properties)
return {'X-WSSE': header}
def encode(self, inp):
#
# Invoke binascii.b2a_base64 iteratively with
# short even length buffers, strip the trailing
# line feed from the result and append. "Even"
# means a number that factors to both 6 and 8,
# so when it gets to the end of the 8-bit input
# there's no partial 6-bit output.
#
oup = ''
while inp:
if len(inp) > 48:
t = inp[:48]
inp = inp[48:]
else:
t = inp
inp = ''
e = binascii.b2a_base64(t)
if e:
oup = oup + e[:-1]
return oup
def sign_rsa_sha1(base_string, rsa_private_key):
"""**RSA-SHA1**
Per `section 3.4.3`_ of the spec.
The "RSA-SHA1" signature method uses the RSASSA-PKCS1-v1_5 signature
algorithm as defined in `RFC3447, Section 8.2`_ (also known as
PKCS#1), using SHA-1 as the hash function for EMSA-PKCS1-v1_5. To
use this method, the client MUST have established client credentials
with the server that included its RSA public key (in a manner that is
beyond the scope of this specification).
.. _`section 3.4.3`: http://tools.ietf.org/html/rfc5849#section-3.4.3
.. _`RFC3447, Section 8.2`: http://tools.ietf.org/html/rfc3447#section-8.2
"""
if isinstance(base_string, unicode_type):
base_string = base_string.encode('utf-8')
# TODO: finish RSA documentation
alg = _jwt_rs1_signing_algorithm()
key = _prepare_key_plus(alg, rsa_private_key)
s=alg.sign(base_string, key)
return binascii.b2a_base64(s)[:-1].decode('utf-8')
def sign_rsa_sha1(base_string, rsa_private_key):
"""**RSA-SHA1**
Per `section 3.4.3`_ of the spec.
The "RSA-SHA1" signature method uses the RSASSA-PKCS1-v1_5 signature
algorithm as defined in `RFC3447, Section 8.2`_ (also known as
PKCS#1), using SHA-1 as the hash function for EMSA-PKCS1-v1_5. To
use this method, the client MUST have established client credentials
with the server that included its RSA public key (in a manner that is
beyond the scope of this specification).
.. _`section 3.4.3`: http://tools.ietf.org/html/rfc5849#section-3.4.3
.. _`RFC3447, Section 8.2`: http://tools.ietf.org/html/rfc3447#section-8.2
"""
if isinstance(base_string, unicode_type):
base_string = base_string.encode('utf-8')
# TODO: finish RSA documentation
alg = _jwt_rs1_signing_algorithm()
key = _prepare_key_plus(alg, rsa_private_key)
s=alg.sign(base_string, key)
return binascii.b2a_base64(s)[:-1].decode('utf-8')
def encode_keypair(d, Q):
header = '-----BEGIN EC PRIVATE KEY-----\n'
footer = '\n-----END EC PRIVATE KEY-----'
d_bytes = _int_to_bytes(d)
x_bytes = _int_to_bytes(Q.x)
y_bytes = _int_to_bytes(Q.y)
d_len = pack('=B', len(d_bytes))
param_len = pack('=B', len(Q.curve.oid) + 2)
oid_len = pack('=B', len(Q.curve.oid))
key_data_len = pack('=B', len(x_bytes + y_bytes) + 4)
xy_len = pack('=B', len(x_bytes + y_bytes) + 2)
bit_string = '\x02\x01\x01\x04{}{}\xa0{}\x06{}{}\xa1{}\x03{}\x00\x04{}{}'.format(
d_len, d_bytes, param_len, oid_len, Q.curve.oid, key_data_len, xy_len, x_bytes, y_bytes)
body = '\x30{}{}'.format(pack('=B', len(bit_string)), bit_string)
return header + '\n'.join(wrap(b2a_base64(body), 64)) + footer
def encode_public_key(Q):
header = '-----BEGIN PUBLIC KEY-----\n'
footer = '\n-----END PUBLIC KEY-----'
x_bytes = _int_to_bytes(Q.x)
y_bytes = _int_to_bytes(Q.y)
param_len = pack('=B', len(Q.curve.oid) + 2)
oid_len = pack('=B', len(Q.curve.oid))
key_data_len = pack('=B', len(x_bytes + y_bytes) + 4)
xy_len = pack('=B', len(x_bytes + y_bytes) + 2)
bit_string = '\x02\x01\x01\xa0{}\x06{}{}\xa1{}\x03{}\x00\x04{}{}'.format(
param_len, oid_len, Q.curve.oid, key_data_len, xy_len, x_bytes, y_bytes)
body = '\x30{}{}'.format(pack('=B', len(bit_string)), bit_string)
return header + '\n'.join(wrap(b2a_base64(body), 64)) + footer
def body_encode(s, maxlinelen=76, eol=NL):
r"""Encode a string with base64.
Each line will be wrapped at, at most, maxlinelen characters (defaults to
76 characters).
Each line of encoded text will end with eol, which defaults to "\n". Set
this to "\r\n" if you will be using the result of this function directly
in an email.
"""
if not s:
return s
encvec = []
max_unencoded = maxlinelen * 3 // 4
for i in range(0, len(s), max_unencoded):
# BAW: should encode() inherit b2a_base64()'s dubious behavior in
# adding a newline to the encoded string?
enc = b2a_base64(s[i:i + max_unencoded]).decode("ascii")
if enc.endswith(NL) and eol != NL:
enc = enc[:-1] + eol
encvec.append(enc)
return EMPTYSTRING.join(encvec)
def _oauth_signature(consumer_token, method, url, parameters={}, token=None):
"""Calculates the HMAC-SHA1 OAuth signature for the given request.
See http://oauth.net/core/1.0/#signing_process
"""
parts = urlparse.urlparse(url)
scheme, netloc, path = parts[:3]
normalized_url = scheme.lower() + "://" + netloc.lower() + path
base_elems = []
base_elems.append(method.upper())
base_elems.append(normalized_url)
base_elems.append("&".join("%s=%s" % (k, _oauth_escape(str(v)))
for k, v in sorted(parameters.items())))
base_string = "&".join(_oauth_escape(e) for e in base_elems)
key_elems = [escape.utf8(consumer_token["secret"])]
key_elems.append(escape.utf8(token["secret"] if token else ""))
key = b"&".join(key_elems)
hash = hmac.new(key, escape.utf8(base_string), hashlib.sha1)
return binascii.b2a_base64(hash.digest())[:-1]
def _oauth10a_signature(consumer_token, method, url, parameters={}, token=None):
"""Calculates the HMAC-SHA1 OAuth 1.0a signature for the given request.
See http://oauth.net/core/1.0a/#signing_process
"""
parts = urlparse.urlparse(url)
scheme, netloc, path = parts[:3]
normalized_url = scheme.lower() + "://" + netloc.lower() + path
base_elems = []
base_elems.append(method.upper())
base_elems.append(normalized_url)
base_elems.append("&".join("%s=%s" % (k, _oauth_escape(str(v)))
for k, v in sorted(parameters.items())))
base_string = "&".join(_oauth_escape(e) for e in base_elems)
key_elems = [escape.utf8(urllib_parse.quote(consumer_token["secret"], safe='~'))]
key_elems.append(escape.utf8(urllib_parse.quote(token["secret"], safe='~') if token else ""))
key = b"&".join(key_elems)
hash = hmac.new(key, escape.utf8(base_string), hashlib.sha1)
return binascii.b2a_base64(hash.digest())[:-1]
