81 lines
2 KiB
Python
81 lines
2 KiB
Python
import urllib
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from functools import wraps
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from uuid import uuid4
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def parse_namespace_repository(repository, tag=False):
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parts = repository.rstrip('/').split('/', 1)
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if len(parts) < 2:
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namespace = 'library'
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repository = parts[0]
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else:
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(namespace, repository) = parts
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if tag:
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parts = repository.split(':', 1)
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if len(parts) < 2:
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tag = None
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else:
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(repository, tag) = parts
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repository = urllib.quote_plus(repository)
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if tag:
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return (namespace, repository, tag)
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return (namespace, repository)
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def parse_repository_name(f):
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@wraps(f)
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def wrapper(repository, *args, **kwargs):
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(namespace, repository) = parse_namespace_repository(repository)
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return f(namespace, repository, *args, **kwargs)
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return wrapper
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def parse_repository_name_and_tag(f):
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@wraps(f)
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def wrapper(repository, *args, **kwargs):
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(namespace, repository, tag) = parse_namespace_repository(repository, tag=True)
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return f(namespace, repository, tag, *args, **kwargs)
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return wrapper
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def format_robot_username(parent_username, robot_shortname):
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return '%s+%s' % (parent_username, robot_shortname)
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def parse_robot_username(robot_username):
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if not '+' in robot_username:
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return None
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return robot_username.split('+', 2)
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def parse_urn(urn):
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""" Parses a URN, returning a pair that contains a list of URN
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namespace parts, followed by the URN's unique ID.
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"""
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if not urn.startswith('urn:'):
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return None
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parts = urn[len('urn:'):].split(':')
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return (parts[0:len(parts) - 1], parts[len(parts) - 1])
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def parse_single_urn(urn):
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""" Parses a URN, returning a pair that contains the first
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namespace part, followed by the URN's unique ID.
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"""
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result = parse_urn(urn)
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if result is None or not len(result[0]):
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return None
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return (result[0][0], result[1])
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uuid_generator = lambda: str(uuid4())
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def urn_generator(namespace_portions, id_generator=uuid_generator):
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prefix = 'urn:%s:' % ':'.join(namespace_portions)
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def generate_urn():
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return prefix + id_generator()
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return generate_urn
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