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This commit is contained in:
Simeon Warner 2016-05-06 21:42:48 -04:00
parent 1343749db0
commit 159fe3ecdc
1 changed files with 18 additions and 16 deletions
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34
resync/url_authority.py
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@ -1,11 +1,12 @@
"""Determine URI authority based on DNS and paths."""
try: #python3
try: # python3
from urllib.parse import urlparse
except ImportError: #python2
except ImportError: # python2
from urlparse import urlparse
import os.path
class UrlAuthority(object):
"""Determine URI authority based on DNS and paths.
@ -15,13 +16,13 @@ class UrlAuthority(object):
Two modes are supported:
strict=True: requires that a query URL has the same URI
strict=True: requires that a query URL has the same URI
scheme (e.g. http) as the master, is on the same server
or one in a sub-domain, and that the path component is
at the same level or below the master.
strict=False (default): requires only that a query URL
has the same URI scheme as the master, and is on the same
has the same URI scheme as the master, and is on the same
server or one in a sub-domain of the master.
Example use:
@ -42,34 +43,35 @@ class UrlAuthority(object):
if (self.url is not None):
self.set_master(self.url)
else:
self.master_scheme='none'
self.master_netloc='none.none.none'
self.master_path='/not/very/likely'
self.master_scheme = 'none'
self.master_netloc = 'none.none.none'
self.master_path = '/not/very/likely'
def set_master(self, url):
"""Set the master url that this object works with."""
m = urlparse(url)
self.master_scheme=m.scheme
self.master_netloc=m.netloc
self.master_path=os.path.dirname(m.path)
self.master_scheme = m.scheme
self.master_netloc = m.netloc
self.master_path = os.path.dirname(m.path)
def has_authority_over(self, url):
"""Return True of the current master has authority over url.
In strict mode checks scheme, server and path. Otherwise checks
just that the server names match or the query url is a
sub-domain of the master
just that the server names match or the query url is a
sub-domain of the master.
"""
s = urlparse(url)
if (s.scheme != self.master_scheme):
return(False)
if (s.netloc != self.master_netloc):
if (not s.netloc.endswith('.'+self.master_netloc)):
if (not s.netloc.endswith('.' + self.master_netloc)):
return(False)
#Maybe should allow parallel for 3+ components, eg. a.example.org, b.example.org
# Maybe should allow parallel for 3+ components, eg. a.example.org,
# b.example.org
path = os.path.dirname(s.path)
if (self.strict and
path != self.master_path and
not path.startswith(self.master_path)):
path != self.master_path and
not path.startswith(self.master_path)):
return(False)
return(True)