def rsa_decrypt(encrypted_data, pem, password=None):
"""
rsa 解密
:param encrypted_data: 待解密 bytes
:param pem: RSA private key 内容/binary
:param password: RSA private key pass phrase
:return: 解密后的 binary
"""
from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.asymmetric import padding
encrypted_data = to_binary(encrypted_data)
pem = to_binary(pem)
private_key = serialization.load_pem_private_key(pem, password, backend=default_backend())
data = private_key.decrypt(
encrypted_data,
padding=padding.OAEP(
mgf=padding.MGF1(hashes.SHA1()),
algorithm=hashes.SHA1(),
label=None,
)
)
return data
def rsa_decrypt(encrypted_data, pem, password=None):
"""
rsa 解密
:param encrypted_data: 待解密 bytes
:param pem: RSA private key 内容/binary
:param password: RSA private key pass phrase
:return: 解密后的 binary
"""
from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.asymmetric import padding
encrypted_data = to_binary(encrypted_data)
pem = to_binary(pem)
private_key = serialization.load_pem_private_key(pem,
password,
backend=default_backend())
data = private_key.decrypt(
encrypted_data,
padding=padding.OAEP(
mgf=padding.MGF1(hashes.SHA1()),
algorithm=hashes.SHA1(),
label=None,
),
)
return data
def rsa_encrypt(data, pem, b64_encode=True):
"""
rsa 加密
:param data: 待加密字符串/binary
:param pem: RSA public key 内容/binary
:param b64_encode: 是否对输出进行 base64 encode
:return: 如果 b64_encode=True 的话，返回加密并 base64 处理后的 string；否则返回加密后的 binary
"""
from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.asymmetric import padding
encoded_data = to_binary(data)
pem = to_binary(pem)
public_key = serialization.load_pem_public_key(pem)
encrypted_data = public_key.encrypt(
encoded_data,
padding=padding.OAEP(
mgf=padding.MGF1(hashes.SHA1()),
algorithm=hashes.SHA1(),
label=None,
),
)
if b64_encode:
encrypted_data = base64.b64encode(encrypted_data).decode("utf-8")
return encrypted_data
def rsa_encrypt(data, pem, b64_encode=True):
"""
rsa 加密
:param data: 待加密字符串/binary
:param pem: RSA public key 内容/binary
:param b64_encode: 是否对输出进行 base64 encode
:return: 如果 b64_encode=True 的话，返回加密并 base64 处理后的 string；否则返回加密后的 binary
"""
from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.asymmetric import padding
encoded_data = to_binary(data)
pem = to_binary(pem)
public_key = serialization.load_pem_public_key(pem, backend=default_backend())
encrypted_data = public_key.encrypt(
encoded_data,
padding=padding.OAEP(
mgf=padding.MGF1(hashes.SHA1()),
algorithm=hashes.SHA1(),
label=None,
)
)
if b64_encode:
encrypted_data = base64.b64encode(encrypted_data).decode('utf-8')
return encrypted_data
def format_url(params, api_key=None):
data = [
to_binary('{0}={1}'.format(k, params[k])) for k in sorted(params)
if params[k]
]
if api_key:
data.append(to_binary('key={0}'.format(api_key)))
return b"&".join(data)
def _encrypt(self, text, _id):
text = to_binary(text)
tmp_list = []
tmp_list.append(to_binary(self.get_random_string()))
length = struct.pack(b'I', socket.htonl(len(text)))
tmp_list.append(length)
tmp_list.append(text)
tmp_list.append(to_binary(_id))
text = b''.join(tmp_list)
text = PKCS7Encoder.encode(text)
ciphertext = to_binary(self.cipher.encrypt(text))
return base64.b64encode(ciphertext)
def _encrypt(self, text, _id):
text = to_binary(text)
tmp_list = []
tmp_list.append(to_binary(self.get_random_string()))
length = struct.pack(b'I', socket.htonl(len(text)))
tmp_list.append(length)
tmp_list.append(text)
tmp_list.append(to_binary(_id))
text = b''.join(tmp_list)
text = PKCS7Encoder.encode(text)
ciphertext = to_binary(self.cipher.encrypt(text))
return base64.b64encode(ciphertext)
def _fetch_access_token(self, url, params):
"""
替代 requests 版本 _fetch_access_token
"""
http_client = AsyncHTTPClient()
params = urlencode(dict((k, to_binary(v)) for k, v in params.items()))
_url = '{0}?{1}'.format(url, params)
req = HTTPRequest(url=_url, method="GET", request_timeout=self.timeout)
res = yield http_client.fetch(req)
if res.error is not None:
raise WeChatClientException(errcode=None,
errmsg=None,
client=self,
request=req,
response=res)
result = self._decode_result(res)
if 'errcode' in result and result['errcode'] != 0:
raise WeChatClientException(result['errcode'],
result['errmsg'],
client=self,
request=res.request,
response=res)
expires_in = 7200
if 'expires_in' in result:
expires_in = result['expires_in']
self.session.set(self.access_token_key, result['access_token'],
expires_in)
self.expires_at = int(time.time()) + expires_in
raise Return(result)
def __repr__(self):
_repr = "{klass}({msg})".format(klass=self.__class__.__name__,
msg=repr(self._data))
if six.PY2:
return to_binary(_repr)
else:
return to_text(_repr)
def __str__(self):
_repr = 'Error code: {code}, message: {msg}'.format(code=self.errcode,
msg=self.errmsg)
if six.PY2:
return to_binary(_repr)
else:
return to_text(_repr)
def encode(cls, text):
length = len(text)
padding_count = cls.block_size - length % cls.block_size
if padding_count == 0:
padding_count = cls.block_size
padding = to_binary(chr(padding_count))
return text + padding * padding_count
def encode(cls, text):
length = len(text)
padding_count = cls.block_size - length % cls.block_size
if padding_count == 0:
padding_count = cls.block_size
padding = to_binary(chr(padding_count))
return text + padding * padding_count
def __repr__(self):
_repr = '{klass}({name})'.format(klass=self.__class__.__name__,
name=repr(self.name))
if six.PY2:
return to_binary(_repr)
else:
return to_text(_repr)
def _encrypt_message(self,
msg,
nonce,
timestamp=None,
crypto_class=None):
from wechatpy.replies import BaseReply
xml = """<xml>
<Encrypt><![CDATA[{encrypt}]]></Encrypt>
<MsgSignature><![CDATA[{signature}]]></MsgSignature>
<TimeStamp>{timestamp}</TimeStamp>
<Nonce><![CDATA[{nonce}]]></Nonce>
</xml>"""
if isinstance(msg, BaseReply):
msg = msg.render()
timestamp = timestamp or to_binary(int(time.time()))
pc = crypto_class(self.key)
encrypt = to_text(pc.encrypt(msg, self._id))
signature = _get_signature(self.token, timestamp, nonce, encrypt)
return to_text(xml.format(
encrypt=encrypt,
signature=signature,
timestamp=timestamp,
nonce=nonce
))
def __repr__(self):
_repr = '{klass}({code}, {msg})'.format(klass=self.__class__.__name__,
code=self.errcode,
msg=self.errmsg)
if six.PY2:
return to_binary(_repr)
else:
return to_text(_repr)
def __str__(self):
_repr = 'Error code: {code}, message: {msg}'.format(
code=self.errcode,
msg=self.errmsg
)
if six.PY2:
return to_binary(_repr)
else:
return to_text(_repr)
def __repr__(self):
_repr = "{klass}({msg})".format(
klass=self.__class__.__name__,
msg=repr(self._data)
)
if six.PY2:
return to_binary(_repr)
else:
return to_text(_repr)
def __repr__(self):
_repr = '{klass}({name})'.format(
klass=self.__class__.__name__,
name=repr(self.name)
)
if six.PY2:
return to_binary(_repr)
else:
return to_text(_repr)
def __repr__(self):
_repr = '{klass}({code}, {msg})'.format(
klass=self.__class__.__name__,
code=self.errcode,
msg=self.errmsg
)
if six.PY2:
return to_binary(_repr)
else:
return to_text(_repr)
def __str__(self):
if six.PY2:
return to_binary('Error code: {code}, message: {msg}'.format(
code=self.return_code,
msg=self.return_msg
))
else:
return to_text('Error code: {code}, message: {msg}'.format(
code=self.return_code,
msg=self.return_msg
))
def _decrypt(self, text, _id, exception=None):
text = to_binary(text)
plain_text = self.cipher.decrypt(base64.b64decode(text))
padding = byte2int(plain_text[-1])
content = plain_text[16:-padding]
xml_length = socket.ntohl(struct.unpack(b'I', content[:4])[0])
xml_content = to_text(content[4:xml_length + 4])
from_id = to_text(content[xml_length + 4:])
if from_id != _id:
exception = exception or Exception
raise exception()
return xml_content
def _decrypt(self, text, _id, exception=None):
text = to_binary(text)
plain_text = self.cipher.decrypt(base64.b64decode(text))
padding = byte2int(plain_text[-1])
content = plain_text[16:-padding]
xml_length = socket.ntohl(struct.unpack(b'I', content[:4])[0])
xml_content = to_text(content[4:xml_length + 4])
from_id = to_text(content[xml_length + 4:])
if from_id != _id:
exception = exception or Exception
raise exception()
return xml_content
def _request(self, method, url_or_endpoint, **kwargs):
http_client = AsyncHTTPClient()
if not url_or_endpoint.startswith(('http://', 'https://')):
api_base_url = kwargs.pop('api_base_url', self.API_BASE_URL)
url = '{base}{endpoint}'.format(base=api_base_url,
endpoint=url_or_endpoint)
else:
url = url_or_endpoint
headers = {}
params = kwargs.pop('params', {})
if 'access_token' not in params:
params['access_token'] = self.access_token
params = urlencode(dict((k, to_binary(v)) for k, v in params.items()))
url = '{0}?{1}'.format(url, params)
data = kwargs.get('data')
files = kwargs.get('files')
if files:
from requests.models import RequestEncodingMixin
from requests.utils import super_len
body, content_type = RequestEncodingMixin._encode_files(
files, data)
headers['Content-Type'] = content_type
headers['Content-Length'] = super_len(body)
else:
if isinstance(data, dict):
body = json.dumps(data, ensure_ascii=False)
body = body.encode('utf-8')
else:
body = data
result_processor = kwargs.pop('result_processor', None)
timeout = kwargs.get('timeout', self.timeout)
req = HTTPRequest(url=url,
method=method.upper(),
headers=headers,
body=body,
request_timeout=timeout)
res = yield http_client.fetch(req)
if res.error is not None:
raise WeChatClientException(errcode=None,
errmsg=None,
client=self,
request=req,
response=res)
result = self._handle_result(res, method, url, result_processor,
**kwargs)
raise Return(result)
def _request(self, method, url_or_endpoint, **kwargs):
http_client = AsyncHTTPClient()
if not url_or_endpoint.startswith(('http://', 'https://')):
api_base_url = kwargs.pop('api_base_url', self.API_BASE_URL)
url = '{base}{endpoint}'.format(
base=api_base_url,
endpoint=url_or_endpoint
)
else:
url = url_or_endpoint
headers = {}
params = kwargs.pop('params', {})
params = urlencode(dict((k, to_binary(v)) for k, v in params.items()))
url = '{0}?{1}'.format(url, params)
data = kwargs.get('data')
if isinstance(data, dict):
data = optionaldict(data)
if 'mchid' not in data:
# F**k Tencent
data.setdefault('mch_id', self.mch_id)
data.setdefault('sub_mch_id', self.sub_mch_id)
data.setdefault('nonce_str', random_string(32))
sign = calculate_signature(data, self.api_key)
body = dict_to_xml(data, sign)
body = body.encode('utf-8')
else:
body = data
req = HTTPRequest(
url=url,
method=method.upper(),
headers=headers,
body=body
)
res = yield http_client.fetch(req)
if res.error is not None:
raise WeChatClientException(
errcode=None,
errmsg=None,
client=self,
request=req,
response=res
)
result = self._handle_result(res)
raise Return(result)
def delete_account(self, account):
"""
删除客服账号
详情请参考
http://mp.weixin.qq.com/wiki/1/70a29afed17f56d537c833f89be979c9.html
:param account: 完整客服账号，格式为：账号前缀@公众号微信号
:return: 返回的 JSON 数据包
"""
params_data = [
'access_token={0}'.format(quote(self.access_token)),
'kf_account={0}'.format(quote(to_binary(account), safe=b'/@')),
]
params = '&'.join(params_data)
return self._get(
'https://api.weixin.qq.com/customservice/kfaccount/del',
params=params)
def get_qrcode_url(self, ticket, data=None):
"""
通过 ticket 换取二维码地址
详情请参考
http://iot.weixin.qq.com/document-2_5.html
:param ticket: 二维码 ticket
:param data: 额外数据
:return: 二维码地址
"""
url = 'http://we.qq.com/d/{ticket}'.format(ticket=ticket)
if data:
if isinstance(data, (dict, tuple, list)):
data = urllib.urlencode(data)
data = to_text(base64.b64encode(to_binary(data)))
url = '{base}#{data}'.format(base=url, data=data)
return url
def get_qrcode_url(self, ticket, data=None):
"""
通过 ticket 换取二维码地址
详情请参考
http://iot.weixin.qq.com/wiki/new/index.html?page=3-4-4
:param ticket: 二维码 ticket
:param data: 额外数据
:return: 二维码地址
"""
url = 'http://we.qq.com/d/{ticket}'.format(ticket=ticket)
if data:
if isinstance(data, (dict, tuple, list)):
data = urllib.urlencode(data)
data = to_text(base64.b64encode(to_binary(data)))
url = '{base}#{data}'.format(base=url, data=data)
return url
def get_qrcode_url(self, ticket, data=None):
"""
通过 ticket 换取二维码地址
详情请参考
https://iot.weixin.qq.com/wiki/new/index.html?page=3-4-4
:param ticket: 二维码 ticket
:param data: 额外数据
:return: 二维码地址
"""
url = f"https://we.qq.com/d/{ticket}"
if data:
if isinstance(data, (dict, tuple, list)):
data = urllib.parse.urlencode(data)
data = to_text(base64.b64encode(to_binary(data)))
url = f"{url}#{data}"
return url
def update_account(self, account, nickname, password):
"""
修改客服账号
详情请参考
https://developers.weixin.qq.com/doc/offiaccount/Message_Management/Service_Center_messages.html#%E4%BF%AE%E6%94%B9%E5%AE%A2%E6%9C%8D%E5%B8%90%E5%8F%B7
:param account: 完整客服账号，格式为：账号前缀@公众号微信号
:param nickname: 客服昵称，最长6个汉字或12个英文字符
:param password: 客服账号登录密码
:return: 返回的 JSON 数据包
"""
password = to_binary(password)
password = hashlib.md5(password).hexdigest()
return self._post(
"kfaccount/update",
data={"kf_account": account, "nickname": nickname, "password": password},
)
def state_imgs(request, user, msg, data, step):
with transaction.atomic():
tweets = TaskTweet.objects.select_for_update(skip_locked=True).filter(
task__owner=user.user, new=True)
if tweets.exists():
ids = tweets.values_list('tweet__images__id', flat=True)
content = to_binary(
settings.WECHAT_TOKEN +
','.join(map(lambda x: '' if x is None else str(x), ids)))
cipher_text = views.imgs_cipher.encrypt(
PKCS7Encoder.encode(content))
encoded = to_text(base64.b64encode(cipher_text))
url = request.build_absolute_uri(
reverse('wechat_imgs', kwargs={'imgs': encoded}))
tweets.update(new=False)
return TextReply(content=url, message=msg), None
else:
return TextReply(content='还没有获取到照片，请稍后再试', message=msg), None
def delete_account(self, account):
"""
删除客服账号
详情请参考
http://mp.weixin.qq.com/wiki/1/70a29afed17f56d537c833f89be979c9.html
:param account: 完整客服账号，格式为：账号前缀@公众号微信号
:return: 返回的 JSON 数据包
"""
params_data = [
'access_token={0}'.format(quote(self.access_token)),
'kf_account={0}'.format(quote(to_binary(account), safe=b'/@')),
]
params = '&'.join(params_data)
return self._get(
'https://api.weixin.qq.com/customservice/kfaccount/del',
params=params
)
def _fetch_access_token(self, url, params):
"""
替代 requests 版本 _fetch_access_token
"""
http_client = AsyncHTTPClient()
params = urlencode(dict((k, to_binary(v)) for k, v in params.items()))
_url = '{0}?{1}'.format(url, params)
req = HTTPRequest(
url=_url,
method="GET",
request_timeout=self.timeout
)
res = yield http_client.fetch(req)
if res.error is not None:
raise WeChatClientException(
errcode=None,
errmsg=None,
client=self,
request=req,
response=res
)
result = self._decode_result(res)
if 'errcode' in result and result['errcode'] != 0:
raise WeChatClientException(
result['errcode'],
result['errmsg'],
client=self,
request=res.request,
response=res
)
expires_in = 7200
if 'expires_in' in result:
expires_in = result['expires_in']
self.session.set(
self.access_token_key,
result['access_token'],
expires_in
)
self.expires_at = int(time.time()) + expires_in
raise Return(result)
def add_account(self, account, nickname, password):
"""
添加客服账号
详情请参考
http://mp.weixin.qq.com/wiki/1/70a29afed17f56d537c833f89be979c9.html
:param account: 完整客服账号，格式为：账号前缀@公众号微信号
:param nickname: 客服昵称，最长6个汉字或12个英文字符
:param password: 客服账号登录密码
:return: 返回的 JSON 数据包
"""
password = to_binary(password)
password = hashlib.md5(password).hexdigest()
return self._post('customservice/kfaccount/add',
data={
'kf_account': account,
'nickname': nickname,
'password': password
})
def send_message(self, device_type, device_id, user_id, content):
"""
主动发送消息给设备
详情请参考
http://iot.weixin.qq.com/wiki/new/index.html?page=3-4-3
:param device_type: 设备类型，目前为“公众账号原始ID”
:param device_id: 设备ID
:param user_id: 微信用户账号的openid
:param content: 消息内容，BASE64编码
:return: 返回的 JSON 数据包
"""
content = to_text(base64.b64encode(to_binary(content)))
return self._post('transmsg',
data={
'device_type': device_type,
'device_id': device_id,
'openid': user_id,
'content': content
})
def update_account(self, account, nickname, password):
"""
更新客服账号
详情请参考
http://mp.weixin.qq.com/wiki/1/70a29afed17f56d537c833f89be979c9.html
:param account: 完整客服账号，格式为：账号前缀@公众号微信号
:param nickname: 客服昵称，最长6个汉字或12个英文字符
:param password: 客服账号登录密码
:return: 返回的 JSON 数据包
"""
password = to_binary(password)
password = hashlib.md5(password).hexdigest()
return self._post(
'https://api.weixin.qq.com/customservice/kfaccount/update',
data={
'kf_account': account,
'nickname': nickname,
'password': password
}
)
def update_account(self, account, nickname, password):
"""
更新客服账号
详情请参考
http://mp.weixin.qq.com/wiki/1/70a29afed17f56d537c833f89be979c9.html
:param account: 完整客服账号，格式为：账号前缀@公众号微信号
:param nickname: 客服昵称，最长6个汉字或12个英文字符
:param password: 客服账号登录密码
:return: 返回的 JSON 数据包
"""
password = to_binary(password)
password = hashlib.md5(password).hexdigest()
return self._post(
"https://api.weixin.qq.com/customservice/kfaccount/update",
data={
"kf_account": account,
"nickname": nickname,
"password": password
},
)
def send_message(self, device_type, device_id, user_id, content):
"""
主动发送消息给设备
详情请参考
http://iot.weixin.qq.com/wiki/new/index.html?page=3-4-3
:param device_type: 设备类型，目前为“公众账号原始ID”
:param device_id: 设备ID
:param user_id: 微信用户账号的openid
:param content: 消息内容，BASE64编码
:return: 返回的 JSON 数据包
"""
content = to_text(base64.b64encode(to_binary(content)))
return self._post(
'transmsg',
data={
'device_type': device_type,
'device_id': device_id,
'openid': user_id,
'content': content
}
)
def __init__(self, key):
self.key = to_binary(hashlib.md5(to_binary(key)).hexdigest())
assert len(self.key) == 32
def format_url(params, api_key=None):
data = [to_binary('{0}={1}'.format(k, params[k])) for k in sorted(params) if params[k]]
if api_key:
data.append(to_binary('key={0}'.format(api_key)))
return b"&".join(data)
def _encrypt(self, text):
text = to_binary(text)
text = PKCS7Encoder.encode(text)
ciphertext = to_binary(self.cipher.encrypt(text))
return base64.b64encode(ciphertext)
def __str__(self):
if six.PY2:
return to_binary(self.render())
else:
return to_text(self.render())
def __base64_decode(self, text):
return to_text(base64.b64decode(to_binary(text)))
def _request(self, method, url_or_endpoint, **kwargs):
http_client = AsyncHTTPClient()
if not url_or_endpoint.startswith(('http://', 'https://')):
api_base_url = kwargs.pop('api_base_url', self.API_BASE_URL)
url = '{base}{endpoint}'.format(
base=api_base_url,
endpoint=url_or_endpoint
)
else:
url = url_or_endpoint
headers = {}
params = kwargs.pop('params', {})
if 'access_token' not in params:
params['access_token'] = self.access_token
params = urlencode(dict((k, to_binary(v)) for k, v in params.items()))
url = '{0}?{1}'.format(url, params)
data = kwargs.get('data')
files = kwargs.get('files')
if files:
from requests.models import RequestEncodingMixin
from requests.utils import super_len
body, content_type = RequestEncodingMixin._encode_files(
files,
data
)
headers['Content-Type'] = content_type
headers['Content-Length'] = super_len(body)
else:
if isinstance(data, dict):
body = json.dumps(data, ensure_ascii=False)
body = body.encode('utf-8')
else:
body = data
result_processor = kwargs.pop('result_processor', None)
timeout = kwargs.get('timeout', self.timeout)
req = HTTPRequest(
url=url,
method=method.upper(),
headers=headers,
body=body,
request_timeout=timeout
)
res = yield http_client.fetch(req)
if res.error is not None:
raise WeChatClientException(
errcode=None,
errmsg=None,
client=self,
request=req,
response=res
)
result = self._handle_result(
res, method, url, result_processor, **kwargs
)
raise Return(result)
def __base64_decode(self, text):
return to_text(base64.b64decode(to_binary(text)))
def __str__(self):
if six.PY2:
return to_binary(self.render())
else:
return to_text(self.render())
def _decrypt(self, text, exception=None):
text = to_binary(text)
plain_text = self.cipher.decrypt(base64.b64decode(text))
padding = byte2int(plain_text[-1])
content = plain_text[:-padding]
return content
def __init__(self, token, encoding_aes_key, _id):
encoding_aes_key = to_binary(encoding_aes_key + '=')
self.key = base64.b64decode(encoding_aes_key)
assert len(self.key) == 32
self.token = token
self._id = _id
def transMsg(deviceType, deviceId, user, content):
content = to_text(base64.b64encode(to_binary(content)))
return POST(DEVICE_BASE_URL, "transmsg", {"device_type":deviceType,"device_id":deviceId,"openid":user,"content":content}, {"access_token": getToken()})
def format_url(params, api_key=None):
data = [to_binary(f"{k}={params[k]}") for k in sorted(params) if params[k]]
if api_key:
data.append(to_binary(f"key={api_key}"))
return b"&".join(data)
