def check_symbol(symbol):
if not isinstance(symbol, str):
raise HuobiApiException(HuobiApiException.INPUT_ERROR,
"[Input] symbol must be string")
if re.match(reg_ex, symbol):
raise HuobiApiException(HuobiApiException.INPUT_ERROR,
"[Input] " + symbol + " is invalid symbol")
def check_response(json_wrapper):
if json_wrapper.contain_key("status"):
status = json_wrapper.get_string("status")
if status == "error":
err_code = json_wrapper.get_string("err_code")
err_msg = json_wrapper.get_string("err_msg")
raise HuobiApiException(HuobiApiException.EXEC_ERROR,
"[Executing] " + err_code + ": " + err_msg)
elif status != "ok":
raise HuobiApiException(
HuobiApiException.RUNTIME_ERROR,
"[Invoking] Response is not expected: " + status)
elif json_wrapper.contain_key("success"):
success = json_wrapper.get_boolean("success")
if success is False:
err_code = etf_result_check(json_wrapper.get_int("code"))
err_msg = json_wrapper.get_string("message")
if err_code == "":
raise HuobiApiException(HuobiApiException.EXEC_ERROR,
"[Executing] " + err_msg)
else:
raise HuobiApiException(
HuobiApiException.EXEC_ERROR,
"[Executing] " + err_code + ": " + err_msg)
else:
raise HuobiApiException(
HuobiApiException.RUNTIME_ERROR,
"[Invoking] Status cannot be found in response.")
def check_currency(currency):
if not isinstance(currency, str):
raise HuobiApiException(HuobiApiException.INPUT_ERROR,
"[Input] currency must be string")
if re.match(reg_ex, currency) is not None:
raise HuobiApiException(
HuobiApiException.INPUT_ERROR,
"[Input] " + currency + " is invalid currency")
def get_account_type_by_id(self, api_key, account_id):
if api_key is None or api_key == "":
raise HuobiApiException(HuobiApiException.KEY_MISSING,
"[User] Key is empty or null")
if api_key not in self.account_id_type_map:
raise HuobiApiException(
HuobiApiException.RUNTIME_ERROR,
"[User] Cannot found account_id by key: " + api_key)
return self.account_id_type_map.get(api_key, {}).get(account_id, None)
def get_user(self, api_key):
if api_key is None or api_key == "":
raise HuobiApiException(HuobiApiException.KEY_MISSING,
"[User] Key is empty or null")
if api_key not in self.user_map:
raise HuobiApiException(
HuobiApiException.RUNTIME_ERROR,
"[User] Cannot found user by key: " + api_key)
return self.user_map[api_key]
def check_list(list_value, min_value, max_value, name):
if list_value is None:
return
if len(list_value) > max_value:
raise HuobiApiException(
HuobiApiException.INPUT_ERROR, "[Input] " + name +
" is out of bound, the max size is " + str(max_value))
if len(list_value) < min_value:
raise HuobiApiException(
HuobiApiException.INPUT_ERROR, "[Input] " + name +
" should contain " + str(min_value) + " item(s) at least")
def format_date(value, name):
if value is None:
return None
if not isinstance(value, str):
raise HuobiApiException(HuobiApiException.INPUT_ERROR,
"[Input] " + name + " must be string")
try:
new_time = time.strptime(value, "%Y-%m-%d")
return time.strftime("%Y-%m-%d", new_time)
except:
raise HuobiApiException(
HuobiApiException.INPUT_ERROR,
"[Input] " + name + " is not invalid date format")
def create_signature(api_key, secret_key, method, url, builder):
if api_key is None or secret_key is None or api_key == "" or secret_key == "":
raise HuobiApiException(HuobiApiException.KEY_MISSING,
"API key and secret key are required")
timestamp = utc_now()
builder.put_url("AccessKeyId", api_key)
builder.put_url("SignatureVersion", "2")
builder.put_url("SignatureMethod", "HmacSHA256")
builder.put_url("Timestamp", timestamp)
host = urllib.parse.urlparse(url).hostname
path = urllib.parse.urlparse(url).path
# 对参数进行排序:
keys = sorted(builder.param_map.keys())
# 加入&
qs0 = '&'.join([
'%s=%s' % (key, parse.quote(builder.param_map[key], safe=''))
for key in keys
])
# 请求方法，域名，路径，参数 后加入`\n`
payload0 = '%s\n%s\n%s\n%s' % (method, host, path, qs0)
dig = hmac.new(secret_key.encode('utf-8'),
msg=payload0.encode('utf-8'),
digestmod=hashlib.sha256).digest()
# 进行base64编码
s = base64.b64encode(dig).decode()
builder.put_url("Signature", s)
def check_symbol_list(symbols):
if not isinstance(symbols, list):
raise HuobiApiException(
HuobiApiException.INPUT_ERROR,
"[Input] symbols in subscription is not a list")
for symbol in symbols:
check_symbol(symbol)
def get_all_accounts_without_check(self, api_key):
if api_key is None or api_key == "":
raise HuobiApiException(HuobiApiException.KEY_MISSING,
"[User] Key is empty or null")
user = self.user_map.get(api_key, None)
return None if (user is None) else user.accounts
def check_range(value, min_value, max_value, name):
if value is None:
return
if min_value > value or value > max_value:
raise HuobiApiException(
HuobiApiException.INPUT_ERROR,
"[Input] " + name + " is out of bound. " + str(value) +
" is not in [" + str(min_value) + "," + str(max_value) + "]")
def get_account_by_id(self, api_key, account_id):
user = self.get_user(api_key)
account = user.get_account_by_id(account_id)
if account is None:
raise HuobiApiException(HuobiApiException.RUNTIME_ERROR,
"[User] Cannot find the account, key: " +
api_key + ", account id: " + str(account_id))
return account
def get_account_by_id(self, account_id):
"""
Get account by account id.
:param account_id: The specified account id.
:return: The account.
"""
for account in self.accounts:
if account.id == account_id:
return account
raise HuobiApiException(HuobiApiException.INPUT_ERROR,
"[Input] No such account")
def get_account_by_type(self, account_type, subtype: 'str' = None):
"""
Get account by account type.
:param account_type: The specified account type.
:param subtype: for margin trade
:return: The account.
"""
margin_account_type_list = [AccountType.MARGIN]
if account_type in margin_account_type_list and subtype is None or len(
subtype) == 0:
raise HuobiApiException(
HuobiApiException.INPUT_ERROR,
"[Input] subtype for margin account error")
for account in self.accounts:
if account.account_type == account_type:
if account_type in margin_account_type_list:
if account.subtype == subtype:
return account
else:
return account
raise HuobiApiException(HuobiApiException.INPUT_ERROR,
"[Input] No such account")
def on_error(self, error_message):
if self.request.error_handler is not None:
exception = HuobiApiException(HuobiApiException.SUBSCRIPTION_ERROR, error_message)
self.request.error_handler(exception)
self.logger.error("[Sub][" + str(self.id) + "] " + str(error_message))
def __check_mandatory_field(self, name):
if name not in self.json_object:
raise HuobiApiException(
HuobiApiException.RUNTIME_ERROR,
"[Json] Get json item field: " + name + " does not exist")
def greater_or_equal(value, base, name):
if value is not None and value < base:
raise HuobiApiException(
HuobiApiException.INPUT_ERROR,
"[Input] " + name + " should be greater than " + base)
def check_should_none(value, name):
if value is not None:
raise HuobiApiException(HuobiApiException.INPUT_ERROR,
"[Input] " + name + " should be null")