"""
domain2idna - The tool to convert a domain or a file with a list
of domain to the famous IDNA format.
Provides the base to all other sublogic(s).
Author:
Nissar Chababy, @funilrys, contactTATAfunilrysTODTODcom
Contributors:
Let's contribute to domains2idna!!
Project link:
https://github.com/PyFunceble/domain2idna
Project documentation:
http://domain2idna.readthedocs.io
License:
MIT License
Copyright (c) 2019, 2020, 2021, 2022 PyFunceble
Copyright (c) 2018, 2019, 2020, 2021, 2022 Nissar Chababy
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
"""
from urllib.parse import urlparse
[docs]class Converter:
"""
Provides a base for every core logic we add.
:param subject: The subject to convert.
:type subject: str, list
:param str original_encoding:
The encoding to provide as output.
"""
to_ignore = [
"0.0.0.0",
"localhost",
"127.0.0.1",
"localdomain",
"local",
"broadcasthost",
"allhosts",
"allnodes",
"allrouters",
"localnet",
"loopback",
"mcastprefix",
]
def __init__(self, subject, original_encoding="utf-8"):
self.subject = subject
self.encoding = original_encoding
[docs] def convert_to_idna(self, subject, original_encoding="utf-8"):
"""
Converts the given subject to IDNA.
:param str subject: The subject to convert.
:rtype: str
"""
if subject in self.to_ignore:
return subject
if "://" not in subject:
try:
return subject.encode("idna").decode(original_encoding)
except UnicodeError: # pragma: no cover
return subject
if subject.startswith("://"):
to_convert = urlparse(f"https://{subject[3:]}").netloc
converted = self.convert_to_idna(to_convert)
return subject.replace(to_convert, converted)
parsed_url = urlparse(subject)
result = f"{parsed_url.scheme}://{self.convert_to_idna(parsed_url.netloc)}{parsed_url.path}"
if parsed_url.params:
result += f";{parsed_url.params}"
if parsed_url.query:
result += f"?{parsed_url.query}"
if parsed_url.fragment:
result += f"#{parsed_url.fragment}"
return result
def __get_converted(self, subject):
"""
Process the actual conversion.
:param str subject: The subject to convert.
:rtype: str
"""
if (
not subject
or not subject.strip()
or subject in self.to_ignore
or subject.startswith("#")
):
return subject
if "#" in subject and "://" not in subject:
comment = " " + subject[subject.find("#") :]
subject = subject[: subject.find("#")].strip()
else:
comment = ""
return (
" ".join(
[
self.convert_to_idna(x, original_encoding=self.encoding)
for x in subject.split()
]
)
+ comment
).strip()
[docs] def get_converted(self):
"""
Provides the converted data.
"""
if isinstance(self.subject, list):
return [self.__get_converted(x) for x in self.subject]
return self.__get_converted(self.subject)