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"""URI."""
# Read: https://stackoverflow.com/questions/176264
# https://www.rfc-editor.org/rfc/rfc3986#section-3
# local
from .email import email
from .url import url
from .utils import validator
def _file_url(value: str):
if not value.startswith("file:///"):
return False
return True
def _ipfs_url(value: str):
if not value.startswith("ipfs://"):
return False
return True
@validator
def uri(value: str, /):
"""Return whether or not given value is a valid URI.
Examples:
>>> uri('mailto:example@domain.com')
True
>>> uri('file:path.txt')
ValidationError(func=uri, args={'value': 'file:path.txt'})
Args:
value:
URI to validate.
Returns:
(Literal[True]): If `value` is a valid URI.
(ValidationError): If `value` is an invalid URI.
"""
if not value:
return False
# TODO: work on various validations
# url
if any(
# fmt: off
value.startswith(item)
for item in {
"ftp",
"ftps",
"git",
"http",
"https",
"irc",
"rtmp",
"rtmps",
"rtsp",
"sftp",
"ssh",
"telnet",
}
# fmt: on
):
return url(value)
# email
if value.startswith("mailto:"):
return email(value[len("mailto:") :])
# file
if value.startswith("file:"):
return _file_url(value)
# ipfs
if value.startswith("ipfs:"):
return _ipfs_url(value)
# magnet
if value.startswith("magnet:?"):
return True
# telephone
if value.startswith("tel:"):
return True
# data
if value.startswith("data:"):
return True
# urn
if value.startswith("urn:"):
return True
# urc
if value.startswith("urc:"):
return True
return False