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Don't pass the detached_signature descriptor, but clone it to avoid being closed, don't close file descriptors leave it up to caller to do so.

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This commit is contained in:
Roberto Rosario
2012-02-14 14:40:48 -04:00
parent ff52506b24
commit 6de85b9670
1 changed files with 15 additions and 12 deletions
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27
apps/django_gpg/api.py
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@@ -4,6 +4,11 @@ import logging
import tempfile
import os
try:
from cStringIO import StringIO
except ImportError:
from StringIO import StringIO
from django.utils.translation import ugettext_lazy as _
from hkp import KeyServer
@@ -174,7 +179,7 @@ class GPG(object):
self.gpg = gnupg.GPG(**kwargs)
def verify_file(self, file_input, detached_signature=None, close_descriptor=True, fetch_key=False):
def verify_file(self, file_input, detached_signature=None, fetch_key=False):
"""
Verify the signature of a file.
"""
@@ -185,36 +190,34 @@ class GPG(object):
# Save the original data and invert the argument order
# Signature first, file second
file_descriptor, filename = tempfile.mkstemp(prefix='django_gpg')
file_data = input_descriptor.read()
file_input.close()
os.write(file_descriptor, file_data)
os.write(file_descriptor, input_descriptor.read())
os.close(file_descriptor)
verify = self.gpg.verify_file(detached_signature, data_filename=filename)
detached_signature = GPG.get_descriptor(detached_signature)
signature_file = StringIO()
signature_file.write(detached_signature.read())
signature_file.seek(0)
verify = self.gpg.verify_file(signature_file, data_filename=filename)
signature_file.close()
else:
verify = self.gpg.verify_file(input_descriptor)
logger.debug('verify.status: %s' % getattr(verify, 'status', None))
if verify:
logger.debug('verify ok')
if close_descriptor:
input_descriptor.close()
return verify
elif getattr(verify, 'status', None) == 'no public key':
# Exception to the rule, to be able to query the keyservers
if fetch_key:
try:
self.receive_key(verify.key_id)
return self.verify_file(input_descriptor, detached_signature, close_descriptor, fetch_key=False)
return self.verify_file(input_descriptor, detached_signature, fetch_key=False)
except KeyFetchingError:
if close_descriptor:
input_descriptor.close()
return verify
else:
return verify
else:
logger.debug('No verify')
if close_descriptor:
input_descriptor.close()
raise GPGVerificationError()
def verify(self, data):