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# A command-line tool for testing.
#
# Usage:
#
# python -m email_validator test@example.org
# python -m email_validator < LIST_OF_ADDRESSES.TXT
#
# Provide email addresses to validate either as a command-line argument
# or in STDIN separated by newlines. Validation errors will be printed for
# invalid email addresses. When passing an email address on the command
# line, if the email address is valid, information about it will be printed.
# When using STDIN, no output will be given for valid email addresses.
#
# Keyword arguments to validate_email can be set in environment variables
# of the same name but upprcase (see below).
import json
import os
import sys
from .validate_email import validate_email
from .deliverability import caching_resolver
from .exceptions_types import EmailNotValidError
def main(dns_resolver=None):
# The dns_resolver argument is for tests.
# Set options from environment variables.
options = {}
for varname in ('ALLOW_SMTPUTF8', 'ALLOW_QUOTED_LOCAL', 'ALLOW_DOMAIN_LITERAL',
'GLOBALLY_DELIVERABLE', 'CHECK_DELIVERABILITY', 'TEST_ENVIRONMENT'):
if varname in os.environ:
options[varname.lower()] = bool(os.environ[varname])
for varname in ('DEFAULT_TIMEOUT',):
if varname in os.environ:
options[varname.lower()] = float(os.environ[varname])
if len(sys.argv) == 1:
# Validate the email addresses pased line-by-line on STDIN.
dns_resolver = dns_resolver or caching_resolver()
for line in sys.stdin:
email = line.strip()
try:
validate_email(email, dns_resolver=dns_resolver, **options)
except EmailNotValidError as e:
print(f"{email} {e}")
else:
# Validate the email address passed on the command line.
email = sys.argv[1]
try:
result = validate_email(email, dns_resolver=dns_resolver, **options)
print(json.dumps(result.as_dict(), indent=2, sort_keys=True, ensure_ascii=False))
except EmailNotValidError as e:
print(e)
if __name__ == "__main__":
main()