| import os |
| import urlparse |
| from StringIO import StringIO |
| |
| blacklist = ["/", "/tools/", "/resources/", "/common/", "/conformance-checkers/", "_certs"] |
| |
| def rel_path_to_url(rel_path, url_base="/"): |
| assert not os.path.isabs(rel_path) |
| if url_base[0] != "/": |
| url_base = "/" + url_base |
| if url_base[-1] != "/": |
| url_base += "/" |
| return url_base + rel_path.replace(os.sep, "/") |
| |
| def is_blacklisted(url): |
| for item in blacklist: |
| if item == "/": |
| if "/" not in url[1:]: |
| return True |
| elif url.startswith(item): |
| return True |
| return False |
| |
| class ContextManagerStringIO(StringIO): |
| def __enter__(self): |
| return self |
| |
| def __exit__(self, *args, **kwargs): |
| self.close() |
| |
| class cached_property(object): |
| def __init__(self, func): |
| self.func = func |
| self.__doc__ = getattr(func, "__doc__") |
| self.name = func.__name__ |
| |
| def __get__(self, obj, cls=None): |
| if obj is None: |
| return self |
| |
| if self.name not in obj.__dict__: |
| obj.__dict__[self.name] = self.func(obj) |
| obj.__dict__.setdefault("__cached_properties__", set()).add(self.name) |
| return obj.__dict__[self.name] |
