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Code Issues Releases Wiki Activity

better error handling of invalid PEM files

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This commit is contained in:
Joshua Tauberer 2015-07-03 13:44:58 +00:00
parent 0924f8ca7a
commit ff4780d5fb
1 changed files with 9 additions and 2 deletions
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11
management/status_checks.py
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@ -665,7 +665,11 @@ def check_certificate(domain, ssl_certificate, ssl_private_key, warn_if_expiring
# Second, check that the certificate matches the private key.
if ssl_private_key is not None:
priv_key = load_pem(open(ssl_private_key, 'rb').read())
try:
priv_key = load_pem(open(ssl_private_key, 'rb').read())
except ValueError as e:
return ("The private key file %s is not a private key file: %s" % (ssl_private_key, str(e)), None)
if not isinstance(priv_key, RSAPrivateKey):
return ("The private key file %s is not a private key file." % ssl_private_key, None)
@ -759,7 +763,10 @@ def load_pem(pem):
from cryptography.x509 import load_pem_x509_certificate
from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.backends import default_backend
pem_type = re.match(b"-+BEGIN (.*?)-+\n", pem).group(1)
pem_type = re.match(b"-+BEGIN (.*?)-+\n", pem)
if pem_type is None:
raise ValueError("File is not a valid PEM-formatted file.")
pem_type = pem_type.group(1)
if pem_type in (b"RSA PRIVATE KEY", b"PRIVATE KEY"):
return serialization.load_pem_private_key(pem, password=None, backend=default_backend())
if pem_type == b"CERTIFICATE":