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import sys
import posixpath
from devpi_common.types import cached_property, ensure_unicode, parse_hash_spec
from requests.models import parse_url
if sys.version_info >= (3, 0):
from urllib.parse import urlparse, urlunsplit, urljoin, unquote
else:
from urlparse import urlparse, urlunsplit, urljoin
from urllib import unquote
def _joinpath(url, args, asdir=False):
new = url
for arg in args[:-1]:
new = urljoin(new, arg.rstrip("/")) + "/"
new = urljoin(new, args[-1])
if asdir:
new = new.rstrip("/") + "/"
return new
class URL:
def __init__(self, url="", *args, **kwargs):
if isinstance(url, URL):
url = url.url
if args:
url = _joinpath(url, args, **kwargs)
if not url:
url = ""
self.url = ensure_unicode(url)
def __nonzero__(self):
return bool(self.url)
__bool__ = __nonzero__
def __repr__(self):
c = repr(self.url.encode("utf8"))
if sys.version_info >= (3,0):
c = c.lstrip("b")
return "<URL %s>" % c
def __eq__(self, other):
return self.url == getattr(other, "url", other)
def __ne__(self, other):
return not (self == other)
def geturl_nofragment(self):
""" return url without fragment """
scheme, netloc, url, params, query, ofragment = self._parsed
return URL(urlunsplit((scheme, netloc, url, query, "")))
@property
def hash_spec(self):
hashalgo, hash_value = parse_hash_spec(self._parsed[-1])
if hashalgo:
hashtype = self._parsed[-1].split("=")[0]
return "%s=%s" %(hashtype, hash_value)
return ""
@property
def hash_algo(self):
return parse_hash_spec(self._parsed[-1])[0]
@property
def hash_value(self):
return parse_hash_spec(self._parsed[-1])[1]
def replace(self, **kwargs):
_parsed = self._parsed
url = []
for field in ('scheme', 'netloc', 'path', 'query', 'fragment'):
url.append(kwargs.get(field, getattr(_parsed, field)))
return URL(urlunsplit(url))
@property
def netloc(self):
return self._parsed.netloc
@property
def username(self):
return self._parsed.username
@property
def password(self):
return self._parsed.password
@property
def hostname(self):
return self._parsed.hostname
@property
def port(self):
return self._parsed.port
@property
def scheme(self):
return self._parsed.scheme
@property
def url_nofrag(self):
return self.geturl_nofragment().url
def __hash__(self):
return hash(self.url)
@cached_property
def _parsed(self):
return urlparse(self.url)
def is_valid_http_url(self):
try:
x = parse_url(self.url)
except Exception:
return False
return x.scheme in ("http", "https")
@property
def path(self):
return self._parsed.path
@property
def basename(self):
return posixpath.basename(unquote(self._parsed.path))
@property
def parentbasename(self):
return posixpath.basename(posixpath.dirname(unquote(self._parsed.path)))
@property
def eggfragment(self):
frag = self._parsed.fragment
if frag.startswith("egg="):
return frag[4:]
@property
def md5(self):
val = self._parsed.fragment
if val.startswith("md5="):
return ensure_unicode(val[4:])
@property
def sha256(self):
val = self._parsed.fragment
if val.startswith("sha256="):
return ensure_unicode(val[4:])
def joinpath(self, *args, **kwargs):
newurl = _joinpath(self.url, args, **kwargs)
return URL(newurl)
def addpath(self, *args, **kwargs):
url = self.url.rstrip("/") + "/"
return URL(_joinpath(url, args, **kwargs))
def relpath(self, target):
""" return a relative path which will point to the target resource."""
parts1 = self.path.split("/")
parts2 = target.split("/")
if not parts2 or parts2[0]:
raise ValueError("not an absolute target: %s" % (target,))
for i, part in enumerate(parts1):
if parts2[i] == part:
continue
prefix = "../" * (len(parts1)-i-1)
return prefix + "/".join(parts2[i:])
rest = parts2[len(parts1):]
if parts1[-1]: # ends not in slash
rest.insert(0, parts1[-1])
return "/".join(rest)
def asdir(self):
if self.url[-1:] == "/":
return self
return self.__class__(self.url + "/")
def asfile(self):
if self.url[-1:] == "/":
return self.__class__(self.url.rstrip("/"))
return self
def torelpath(self):
""" return scheme/netloc/path/fragment into a canonical relative
filepath. Only the scheme, netlocation and path are mapped,
fragments and queries are ignored.
"""
parsed = self._parsed
assert parsed.scheme in ("http", "https")
return "%s/%s%s" % (parsed.scheme, parsed.netloc, parsed.path)
@classmethod
def fromrelpath(cls, relpath):
""" return url from canonical relative path. """
scheme, netlocpath = relpath.split("/", 1)
return cls(scheme + "://" + netlocpath)
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