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Code Issues Activity

Fix attribute API call whitelist handling

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This commit is contained in:
Lauri Võsandi 2017-03-26 16:58:29 +00:00
parent 13db28aaac
commit 77db728294
1 changed files with 28 additions and 25 deletions
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53
certidude/api/attrib.py
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@ -1,7 +1,7 @@
import falcon
import logging
import ipaddress
from ipaddress import ip_address
from xattr import getxattr, listxattr
from datetime import datetime
from certidude import config, authority
@ -17,30 +17,33 @@ class AttributeResource(object):
This not only contains tags and lease information,
but might also contain some other sensitive information.
"""
path, buf, cert = authority.get_signed(cn)
try:
path, buf, cert = authority.get_signed(cn)
except IOError:
raise falcon.HTTPNotFound()
else:
attribs = dict()
for key in listxattr(path):
if not key.startswith("user."):
continue
value = getxattr(path, key)
current = attribs
if "." in key:
namespace, key = key.rsplit(".", 1)
for component in namespace.split("."):
if component not in current:
current[component] = dict()
current = current[component]
current[key] = value
attribs = dict()
for key in listxattr(path):
if not key.startswith("user."):
continue
value = getxattr(path, key)
current = attribs
if "." in key:
namespace, key = key.rsplit(".", 1)
for component in namespace.split("."):
if component not in current:
current[component] = dict()
current = current[component]
current[key] = value
whitelist = ip_address(attribs.get("user").get("lease").get("address").decode("ascii"))
whitelist = attribs.get("user").get("address")
if req.context.get("remote_addr") != whitelist:
logger.info("Attribute access denied from %s, expected %s for %s",
req.context.get("remote_addr"),
whitelist,
cn)
raise falcon.HTTPForbidden("Forbidden",
"Attributes only accessible to the machine")
if req.context.get("remote_addr") != whitelist:
logger.info("Attribute access denied from %s, expected %s for %s",
req.context.get("remote_addr"),
whitelist,
cn)
raise falcon.HTTPForbidden("Forbidden",
"Attributes only accessible to the machine")
return attribs
return attribs