from uuid import UUID
import phonenumbers
from phonenumbers import carrier
import requests
from requests.adapters import HTTPAdapter
from requests.packages.urllib3.util.retry import Retry
from .errors import ValidationError
ERROR_CODES = [
{
"http_code": 409,
"response_code": None,
"description": "Duplicated Reference Id. Cannot create new resource",
"error_type": "generic"
},
{
"http_code": 404,
"response_code": None,
"description": "Reference Id not found. Requested resource does not exist",
"error_type": "generic"
},
{
"http_code": 400,
"response_code": None,
"description": "Bad request. Request does not follow the specification.",
"error_type": "generic"
},
{
"http_code": 401,
"response_code": None,
"description": "Authentication failed. Credentials not valid",
"error_type": "generic"
},
{
"http_code": 500,
"response_code": "NOT_ALLOWED",
"description": "Authorization failed. User does not have permission.",
"error_type": "generic"
},
{
"http_code": 500,
"response_code": "NOT_ALLOWED_TARGET_ENVIRONMENT",
"description": "Not allowed target environment",
"error_type": "generic"
},
{
"http_code": 500,
"response_code": "INVALID_CALLBACK_URL_HOST",
"description": "Callback URL with different host name then configured for API User",
"error_type": "generic"
},
{
"http_code": 500,
"response_code": "INVALID_CURRENCY",
"description": "Currency not supported on the requested account",
"error_type": "generic"
},
{
"http_code": 500,
"response_code": "INTERNAL_PROCESSING_ERROR",
"description": "Default error code used when there is no specific error mapping.",
"error_type": "generic"
},
{
"http_code": 500,
"response_code": "SERVICE_UNAVAILABLE",
"description": "Service temporary unavailable, try again later",
"error_type": "generic"
},
{
"http_code": 500,
"response_code": "PAYER_NOT_FOUND",
"description": "Payer not found",
"error_type": "preapproval"
},
{
"http_code": 500,
"response_code": "PAYEE_NOT_ALLOWED_TO_RECEIVE",
"description": "Payee cannot receive funds due to e.g. transfer limit.",
"error_type": "request_to_pay"
},
{
"http_code": 500,
"response_code": "NOT_ENOUGH_FUNDS",
"description": "Not enough funds on payer account",
"error_type": "transfer"
},
{
"http_code": 500,
"response_code": "PAYER_LIMIT_REACHED",
"description": "Not allowed to end due to Payer limit reached",
"error_type": "transfer"
},
{
"http_code": 500,
"response_code": "PAYEE_NOT_FOUND",
"description": "Payee not found. Account holder is not registered",
"error_type": "transfer"
},
{
"http_code": 404,
"response_code": None,
"description": "Account holder is not found",
"error_type": "account"
}
]
def requests_retry_session(
retries=3,
backoff_factor=0.3,
status_forcelist=(502, 504),
session=None,
**kwargs
):
session = session or requests.Session()
retry = Retry(
total=retries,
read=retries,
connect=retries,
backoff_factor=backoff_factor,
status_forcelist=status_forcelist,
)
adapter = HTTPAdapter(max_retries=retry)
session.mount('http://', adapter)
session.mount('https://', adapter)
return session
def validate_phone_number(number):
obj = phonenumbers.parse(number, "UG")
if not phonenumbers.is_valid_number(obj):
raise ValidationError("Invalid Phone number {0}".format(number))
if (carrier.name_for_number(obj, "en") != "MTN"):
raise ValidationError(
"{0}: Only MTN is supported at the moment".format(number))
return "256{0}".format(obj.national_number)
def validate_number(number):
number_types = (int, float)
if not type(number) in number_types:
raise ValidationError("{0}: Must be a number".format(number))
return number
def validate_string(_string):
if not isinstance(_string, str):
raise ValidationError("{0}: Must be a string".format(_string))
return _string
def validate_uuid(_string):
try:
UUID(_string, version=4)
except ValueError:
raise ValidationError(
"{0}: Must be a valid uuid4 string".format(_string))
return _string
