integ/security/keyrings.alt/debian/patches/remove-reader-lock.patch
Yue Tao de2af4d74d Add debian package for python-keyring
The upstream commit 1e422ed of python-keyring moved non-preferred
keyring backends to separated package "keyrings.alt", so adding the
keyrings.alt and porting the patches related to non-preferred
keyring backends to keyrings.alt.

Patches are not up to our standard. Bringing them up to standard
is future work, tracked by:

https://bugs.launchpad.net/starlingx/+bug/1950506.

Related-Bug: 1950506

Building successfully.

Installing python3-keyrings.alt, python3-keyring and the dependence
package tsconfig successfully.

Booting up ISO successfully on qemu.

Story: 2009221
Task: 43438

Signed-off-by: Yue Tao <yue.tao@windriver.com>
Change-Id: I4b70927709f0cc968e32af1d0e2a9402f47b2fe9
2021-11-22 13:11:46 +08:00

137 lines
5.6 KiB
Diff

The upstream commit 1e422ed of keyring moves non-preferred keyring
backends to keyrings.alt package, so porting remove-reader-lock.patch
to package keyrings.alt
---
keyring/backends/file.py | 85 ++++++++++++++++++++++-------------------------
1 file changed, 41 insertions(+), 44 deletions(-)
--- a/keyrings/alt/file_base.py
+++ b/keyrings/alt/file_base.py
@@ -14,6 +14,7 @@ from keyring.backend import KeyringBacke
from keyring.util import platform_, properties
from .escape import escape as escape_for_ini
from oslo_concurrency import lockutils
+from tempfile import mkstemp
lockfile = "keyringlock"
@@ -144,9 +145,9 @@ class Keyring(FileBacked, KeyringBackend
# ensure the file exists
self._ensure_file_path()
- lockdir = os.path.dirname(self.file_path)
+ keyringdir = os.path.dirname(self.file_path)
- with lockutils.lock(lockfile,external=True,lock_path=lockdir):
+ with lockutils.lock(lockfile, external=True, lock_path=keyringdir):
config = None
try:
@@ -165,15 +166,20 @@ class Keyring(FileBacked, KeyringBackend
config.add_section(service)
config.set(service, key, value)
- # Save the keyring back to the file
- storage_root = os.path.dirname(self.file_path)
- tmpfile = "tmpfile.%s" % os.getpid()
- with open(storage_root + "/" + tmpfile, 'w') as config_file:
- config.write(config_file)
- # copy will overwrite but move will not
- shutil.copy(storage_root + "/" + tmpfile,self.file_path)
- # wipe out tmpfile here
- os.remove(storage_root + "/" + tmpfile)
+ # remove any residual temporary files here
+ try:
+ for tmpfile in glob.glob("%s/tmp*" % keyringdir):
+ os.remove(tmpfile)
+ except:
+ logging.warning("_check_file: tmpfile removal failed")
+
+ # Write the keyring to a temp file, then move the new file
+ # to avoid overwriting the existing inode
+ (fd, fname) = mkstemp(dir=keyringdir)
+ with os.fdopen(fd, "w") as config_file:
+ config.write(config_file)
+ os.chmod(fname, os.stat(self.file_path).st_mode)
+ shutil.move(fname, self.file_path)
@@ -211,8 +217,8 @@ class Keyring(FileBacked, KeyringBackend
service = escape_for_ini(service)
username = escape_for_ini(username)
- lockdir = os.path.dirname(self.file_path)
- with lockutils.lock(lockfile,external=True,lock_path=lockdir):
+ keyringdir = os.path.dirname(self.file_path)
+ with lockutils.lock(lockfile, external=True, lock_path=keyringdir):
config = configparser.RawConfigParser()
if os.path.exists(self.file_path):
config.read(self.file_path)
@@ -221,13 +227,19 @@ class Keyring(FileBacked, KeyringBackend
raise PasswordDeleteError("Password not found")
except configparser.NoSectionError:
raise PasswordDeleteError("Password not found")
- # update the file
- storage_root = os.path.dirname(self.file_path)
- tmpfile = "tmpfile.%s" % os.getpid()
- with open(storage_root + "/" + tmpfile, 'w') as config_file:
+
+ # remove any residual temporary files here
+ try:
+ for tmpfile in glob.glob("%s/tmp*" % keyringdir):
+ os.remove(tmpfile)
+ except:
+ logging.warning("_check_file: tmpfile removal failed")
+
+ # Write the keyring to a temp file, then move the new file
+ # to avoid overwriting the existing inode
+ (fd, fname) = mkstemp(dir=keyringdir)
+ with os.fdopen(fd, "w") as config_file:
config.write(config_file)
- # copy will overwrite but move will not
- shutil.copy(storage_root + "/" + tmpfile,self.file_path)
- # wipe out tmpfile
- os.remove(storage_root + "/" + tmpfile)
+ os.chmod(fname, os.stat(self.file_path).st_mode)
+ shutil.move(fname, self.file_path)
--- a/keyrings/alt/file.py
+++ b/keyrings/alt/file.py
@@ -120,26 +120,14 @@ class EncryptedKeyring(Encrypted, Keyrin
return False
self._migrate()
- lockdir = os.path.dirname(self.file_path)
- # lock access to the file_path here, make sure it's not being written
- # to while while we're checking for keyring-setting
- with lockutils.lock(lockfile,external=True,lock_path=lockdir):
- config = configparser.RawConfigParser()
- config.read(self.file_path)
- try:
- config.get(
- escape_for_ini('keyring-setting'), escape_for_ini('password reference'),
- )
- except (configparser.NoSectionError, configparser.NoOptionError):
- return False
-
- # remove any residual temporary files here
- try:
- for tmpfile in glob.glob(os.path.dirname(self.file_path) + "/" + "tmpfile.*"):
- os.remove(tmpfile)
- except:
- logging.warning("_check_file: tmpfile removal failed")
-
+ config = configparser.RawConfigParser()
+ config.read(self.file_path)
+ try:
+ config.get(
+ escape_for_ini('keyring-setting'), escape_for_ini('password reference'),
+ )
+ except (configparser.NoSectionError, configparser.NoOptionError):
+ return False
try:
self._check_scheme(config)