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extending example
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‎dsg_lib/common_functions/email_validation.py

Lines changed: 65 additions & 57 deletions
Original file line numberDiff line numberDiff line change
@@ -1,7 +1,7 @@
11
# -*- coding: utf-8 -*-
22
from enum import Enum
33
from typing import Dict, List, Union
4-
4+
from loguru import logger
55
from email_validator import (
66
EmailNotValidError,
77
EmailUndeliverableError,
@@ -28,8 +28,8 @@ def validate_email_address(
2828
timeout: int = 10,
2929
dns_type: str = 'timeout',
3030
) -> Dict[str, Union[str, bool, Dict[str, Union[str, bool, List[str]]]]]:
31-
# Log the email being validated
32-
# logger.info(f"Validating email: {email}")
31+
32+
logger.debug(f"validate_email_address: {email} with params: {locals()}")
3333
valid: bool = False
3434

3535
dns_type = dns_type.lower()
@@ -43,7 +43,7 @@ def validate_email_address(
4343
dns_param = {"timeout": timeout}
4444

4545
try:
46-
# Validate the email address, checking for deliverability
46+
4747
emailinfo = validate_email(
4848
email,
4949
check_deliverability=check_deliverability,
@@ -54,10 +54,9 @@ def validate_email_address(
5454
globally_deliverable=globally_deliverable,
5555
**dns_param,
5656
)
57-
# Normalize the email address
57+
5858
email: str = emailinfo.normalized
5959

60-
# Initialize an empty dictionary to store email information
6160
email_dict: Dict[
6261
str, Union[str, bool, Dict[str, Union[str, bool, List[str]]]]
6362
] = {
@@ -66,63 +65,26 @@ def validate_email_address(
6665
"email_data": None,
6766
}
6867
email_data: Dict[str, Union[str, bool, List[str]]] = {}
69-
# Populate the dictionary with attributes from the validated email,
70-
# if they exist
71-
# if hasattr(emailinfo, "original"):
72-
# email_data["original"] = emailinfo.original
73-
# if hasattr(emailinfo, "normalized"):
74-
# email_data["normalized"] = emailinfo.normalized
75-
# if hasattr(emailinfo, "local_part"):
76-
# email_data["local"] = emailinfo.local_part
77-
# if hasattr(emailinfo, "domain"):
78-
# email_data["domain"] = emailinfo.domain
79-
# if hasattr(emailinfo, "ascii_email"):
80-
# email_data["ascii_email"] = emailinfo.ascii_email
81-
# if hasattr(emailinfo, "ascii_local_part"):
82-
# email_data["ascii_local"] = emailinfo.ascii_local_part
83-
# if hasattr(emailinfo, "ascii_domain"):
84-
# email_data["ascii_domain"] = emailinfo.ascii_domain
85-
# if hasattr(emailinfo, "smtputf8"):
86-
# email_data["smtputf8"] = emailinfo.smtputf8
87-
# if hasattr(emailinfo, "domain_address"):
88-
# email_data["domain_address"] = emailinfo.domain_address
89-
# if hasattr(emailinfo, "display_name"):
90-
# email_data["display_name"] = emailinfo.display_name
68+
9169
if hasattr(emailinfo, "mx"):
9270
email_data["mx"] = emailinfo.mx
9371
if emailinfo.mx is not None:
9472
email_dict["valid"] = True
95-
# logger.info(f"Email is valid: {email}")
96-
# if hasattr(emailinfo, "mx_fallback_type"):
97-
# email_data["mx_fallback_type"] = emailinfo.mx_fallback_type
98-
# if hasattr(emailinfo, "spf"):
99-
# email_data["spf"] = emailinfo.spf
100-
101-
# Log that the email is valid
102-
# logger.info(f"Email is valid: {email}")
103-
# Return a dictionary indicating that the email is valid, along with
104-
# the normalized email and the email information dictionary
73+
logger.info(f"Email is valid: {email}")
74+
else:
75+
if emailinfo.normalized is not None:
76+
email_dict["valid"] = True
77+
logger.info(F"Email no MX record found: {email}")
78+
10579
email_dict["email_data"] = dict(sorted(vars(emailinfo).items()))
106-
# email_dict['edata'] = vars(emailinfo)
80+
10781
return email_dict
10882

10983
except EmailUndeliverableError as e:
110-
# Log the error if email deliverability fails
111-
# logger.error(f"Email deliverability failed for {email}: {str(e)}")
112-
# Return a dictionary indicating that the email is not deliverable,
113-
# along with the original email and the error message
11484
return {"valid": valid, "email": email, "error": str(e)}
11585
except EmailNotValidError as e:
116-
# Log the error if email validation fails
117-
# logger.error(f"Email validation failed for {email}: {str(e)}")
118-
# Return a dictionary indicating that the email is not valid, along
119-
# with the original email and the error message
12086
return {"valid": valid, "email": email, "error": str(e)}
12187
except Exception as e:
122-
# Log the error if an unexpected exception occurs
123-
# logger.error(f"An unexpected error occurred: {str(e)}")
124-
# Return a dictionary indicating that an unexpected error occurred,
125-
# along with the original email and the error message
12688
return {"valid": valid, "email": email, "error": str(e)}
12789

12890

@@ -155,14 +117,60 @@ def validate_email_address(
155117
'this\\ still\\"not\\\\allowed@example.com', # even if escaped (preceded by a backslash), spaces, quotes, and backslashes must still be contained by quotes
156118
"1234567890123456789012345678901234567890123456789012345678901234+x@example.com", # local part is longer than 64 characters
157119
"mike@google.com",
120+
# Emails with empty local part
121+
"@example.com", # only valid if allow_empty_local is True
122+
123+
# Emails with non-ASCII characters
124+
"üñîçøðé@example.com", # only valid if allow_smtputf8 is True
125+
"user@üñîçøðé.com", # only valid if allow_smtputf8 is True
126+
127+
# Emails with quoted local part
128+
'"john.doe"@example.com', # only valid if allow_quoted_local is True
129+
'"john..doe"@example.com', # only valid if allow_quoted_local is True
130+
131+
# Emails with display name
132+
'John Doe <john@example.com>', # only valid if allow_display_name is True
133+
134+
# Emails with domain literal
135+
'user@[192.0.2.1]', # only valid if allow_domain_literal is True
136+
137+
# Emails with long local part
138+
"a"*65 + "@example.com", # local part is longer than 64 characters
139+
140+
# Emails with invalid characters
141+
"john doe@example.com", # space is not allowed
142+
"john@doe@example.com", # only one @ is allowed
143+
"john.doe@.com", # domain can't start with a dot
144+
"john.doe@example..com", # domain can't have two consecutive dots
145+
]
146+
# create a list of configurations
147+
configurations = [
148+
{"check_deliverability": True, "test_environment": False, "allow_smtputf8": False, "allow_empty_local": False, "allow_quoted_local": False, "allow_display_name": False, "allow_domain_literal": False, "globally_deliverable": None, "timeout": 10, "dns_type": 'timeout'},
149+
{"check_deliverability": False, "test_environment": True, "allow_smtputf8": True, "allow_empty_local": True, "allow_quoted_local": True, "allow_display_name": True, "allow_domain_literal": True, "globally_deliverable": None, "timeout": 5, "dns_type": 'dns'},
150+
# add more configurations here
158151
]
159152

160153
import pprint
161154
import time
162155

163-
for email in email_addresses:
164-
t0 = time.time()
165-
res = validate_email_address(email)
166-
if res['valid']:
167-
pprint.pprint(res, indent=4)
168-
# print(f"Time taken: {time.time() - t0:.2f}")
156+
t0 = time.time()
157+
validity=[]
158+
for _ in range(20):
159+
for email in email_addresses:
160+
for config in configurations:
161+
162+
res = validate_email_address(email, **config)
163+
# if res['valid']:
164+
# pprint.pprint(res, indent=4)
165+
# pprint.pprint(res, indent=4)
166+
# print(f"Time taken: {time.time() - t0:.2f}")
167+
# print(f"Email: {email} is valid: {res['valid']}")
168+
# validity.append(f"Email: {email} is valid: {res['valid']}")
169+
validity.append(res)
170+
t1 = time.time()
171+
validity = sorted(validity, key=lambda x: x['email'])
172+
173+
for v in validity:
174+
pprint.pprint(v, indent=4)
175+
176+
print(f"Time taken: {t1 - t0:.2f}")

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