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SingleValidation.py
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from flask import current_app, Flask
from wtforms import ValidationError
import http.client
import urllib
import hashlib
import json
class SingleValidation:
def __init__(self, apikey):
self.apikey = apikey
def ValidateEmail(self, email):
p = { 'key': self.apikey, 'format': 'json', 'email': email, 'source': 'flask' }
try:
conn = http.client.HTTPConnection("api.mailboxvalidator.com")
conn.request("GET", "/v2/validation/single?" + urllib.parse.urlencode(p))
res = conn.getresponse()
# print res.read()
return json.loads(res.read())
except:
return None
def DisposableEmail(self, email):
p = { 'key': self.apikey, 'format': 'json', 'email': email, 'source': 'flask' }
try:
conn = http.client.HTTPConnection("api.mailboxvalidator.com")
conn.request("GET", "/v2/email/disposable?" + urllib.parse.urlencode(p))
res = conn.getresponse()
# print res.read()
return json.loads(res.read())
except:
return None
def FreeEmail(self, email):
p = { 'key': self.apikey, 'format': 'json', 'email': email, 'source': 'flask' }
try:
conn = http.client.HTTPConnection("api.mailboxvalidator.com")
conn.request("GET", "/v2/email/free?" + urllib.parse.urlencode(p))
res = conn.getresponse()
# print res.read()
return json.loads(res.read())
except:
return None
# Class to validate the email from form
class EmailValidation(object):
# see http://flask.pocoo.org/docs/0.12/extensiondev/#the-extension-code
def __init__(self, apikey, app=None, message=None):
self.apikey = apikey
SingleValidation(self.apikey)
self.app = app
if app is not None:
self.init_app(app)
if not message:
message = 'Error: Email is not valid.'
self.message = message
def init_app(self, app):
# See http://flask.pocoo.org/docs/0.12/extensiondev/#the-extension-code
# Perform Class type checking
if not isinstance(app, Flask):
raise TypeError("flask_MailboxValidator.EmailValidation.init_app(): Parameter 'app' is an instance of class '%s' "
"instead of a subclass of class 'flask.Flask'."
% app.__class__.__name__)
# Bind Flask-User to app
app.user_manager = self
def __call__(self, form, field):
email = field.data
email_result = SingleValidation.ValidateEmail(self,email)
if 'error' not in results:
# check disposable
if email_result['is_disposable']:
# print ('is_disposable: ' + email_result['is_disposable'])
if email_result['is_disposable']:
raise ValidationError('Error: You should not use the disposable email from ' + email_result['domain'] + ' to register.')
# check email syntax
elif email_result['is_syntax']:
# print ('is_syntax: ' + email_result['is_syntax'])
if email_result['is_syntax'] is False:
raise ValidationError('Error: You should enter email with valid syntax.')
# check email MX record
elif email_result['is_domain']:
# print ('is_domain: ' + email_result['is_domain'])
if email_result['is_domain'] is False:
raise ValidationError('Error: The email address do not have valid MX record in its DNS entries.')
# check email server is respond to the server or not
elif email_result['is_smtp']:
# print ('is_smtp: ' + email_result['is_smtp'])
if email_result['is_smtp'] is False:
raise ValidationError('Error: The email server is not responding.')
# check email is actually exists or not:
elif email_result['is_verified']:
# print ('is_verified: ' + email_result['is_verified'])
if email_result['is_verified'] is False:
raise ValidationError('Error: The email address appears to be non-exist.')
# check if the email is blacklisted by MBV or not
# elif email_result['is_suppressed']:
# print ('is_suppressed: ' + email_result['is_suppressed'])
# if email_result['is_suppressed']:
# raise ValidationError('Error: The email address do not have valid MX record in its DNS entries.')
# check whether the email is belongs to role based email or not
# elif email_result['is_role']:
# print ('is_role: ' + email_result['is_role'])
# if email_result['is_role'] == 'False':
# raise ValidationError('Error: The email address do not have valid MX record in its DNS entries.')
# check whether the email contains high risk keywords or not
elif email_result['is_high_risk']:
# print ('is_high_risk: ' + email_result['is_high_risk'])
if email_result['is_high_risk']:
raise ValidationError('Error: The email address is high risked.')
else:
print ('MBV Error:' + email_result['error']['error_message'])
class DisposableEmailValidation(object):
# see http://flask.pocoo.org/docs/0.12/extensiondev/#the-extension-code
def __init__(self, apikey, app=None, message=None):
self.apikey = apikey
SingleValidation(self.apikey)
self.app = app
if app is not None:
self.init_app(app)
if not message:
message = 'Error: Email is not valid.'
self.message = message
def init_app(self, app):
# See http://flask.pocoo.org/docs/0.12/extensiondev/#the-extension-code
# Perform Class type checking
if not isinstance(app, Flask):
raise TypeError("flask_MailboxValidator.EmailValidation.init_app(): Parameter 'app' is an instance of class '%s' "
"instead of a subclass of class 'flask.Flask'."
% app.__class__.__name__)
# Bind Flask-User to app
app.user_manager = self
def __call__(self, form, field):
email = field.data
email_result = SingleValidation.DisposableEmail(self,email
if 'error' not in results:
# check disposable
if email_result['is_disposable']:
# print ('is_disposable: ' + email_result['is_disposable'])
if email_result['is_disposable']:
raise ValidationError('Error: You should not use the disposable email ' + email + ' to register.')
else:
print ('MBV Error:' + email_result['error_message'])
class FreeEmailValidation(object):
# see http://flask.pocoo.org/docs/0.12/extensiondev/#the-extension-code
def __init__(self, apikey, app=None, message=None):
self.apikey = apikey
SingleValidation(self.apikey)
self.app = app
if app is not None:
self.init_app(app)
if not message:
message = 'Error: Email is not valid.'
self.message = message
def init_app(self, app):
# See http://flask.pocoo.org/docs/0.12/extensiondev/#the-extension-code
# Perform Class type checking
if not isinstance(app, Flask):
raise TypeError("flask_MailboxValidator.EmailValidation.init_app(): Parameter 'app' is an instance of class '%s' "
"instead of a subclass of class 'flask.Flask'."
% app.__class__.__name__)
# Bind Flask-User to app
app.user_manager = self
def __call__(self, form, field):
email = field.data
email_result = SingleValidation.FreeEmail(self,email)
if 'error' not in results:
# check free
if email_result['is_free']:
# print ('is_free: ' + email_result['is_free'])
if email_result['is_free']:
raise ValidationError('Error: You should not use the free email ' + email + ' to register.')
else:
print ('MBV Error:' + email_result['error_message'])