30 lines
1.2 KiB
Python
30 lines
1.2 KiB
Python
|
import re
|
||
|
|
from urllib.parse import urlsplit, parse_qs
|
||
|
|
from django.forms import ValidationError
|
||
|
|
|
||
|
|
|
||
|
|
def validate_url(url, validator):
|
||
|
|
'''
|
||
|
|
Validate a URL against a dict of validation requirements.
|
||
|
|
'''
|
||
|
|
valid_scheme, valid_netloc, valid_path, valid_query = (validator['scheme'],
|
||
|
|
validator['domain'], validator['path_regex'], validator['qs_args'])
|
||
|
|
url_parts = urlsplit(str(url).strip())
|
||
|
|
url_scheme = str(url_parts.scheme).strip().lower()
|
||
|
|
if url_scheme != valid_scheme:
|
||
|
|
raise ValidationError(f'scheme "{url_scheme}" must be "{valid_scheme}"')
|
||
|
|
url_netloc = str(url_parts.netloc).strip().lower()
|
||
|
|
if url_netloc != valid_netloc:
|
||
|
|
raise ValidationError(f'domain "{url_netloc}" must be "{valid_netloc}"')
|
||
|
|
url_path = str(url_parts.path).strip()
|
||
|
|
matches = re.match(valid_path, url_path)
|
||
|
|
if matches is None:
|
||
|
|
raise ValidationError(f'path "{url_path}" must match "{valid_path}"')
|
||
|
|
url_query = str(url_parts.query).strip()
|
||
|
|
url_query_parts = parse_qs(url_query)
|
||
|
|
for required_query in valid_query:
|
||
|
|
if required_query not in url_query_parts:
|
||
|
|
raise ValidationError(f'query string "{url_query}" must '
|
||
|
|
f'contain "{required_query}"')
|
||
|
|
return True
|