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Increase performace: open and parse rigts file only by starting.

Hanlde right sections without user.
This commit is contained in:
Dipl. Ing. Péter Varkoly 2024-09-21 18:39:39 +02:00
parent 9945a9f65a
commit 98c5ffdc87

View file

@ -49,33 +49,36 @@ class Rights(rights.BaseRights):
super().__init__(configuration)
self._filename = configuration.get("rights", "file")
self._log_rights_rule_doesnt_match_on_debug = configuration.get("logging", "rights_rule_doesnt_match_on_debug")
self._rights_config = configparser.ConfigParser()
try:
with open(self._filename, "r") as f:
self._rights_config.read_file(f)
logger.debug("Read rights file")
except Exception as e:
raise RuntimeError("Failed to load rights file %r: %s" %
(self._filename, e)) from e
def authorization(self, user: str, path: str) -> str:
user = user or ""
sane_path = pathutils.strip_path(path)
# Prevent "regex injection"
escaped_user = re.escape(user)
rights_config = configparser.ConfigParser()
try:
with open(self._filename, "r") as f:
rights_config.read_file(f)
except Exception as e:
raise RuntimeError("Failed to load rights file %r: %s" %
(self._filename, e)) from e
if not self._log_rights_rule_doesnt_match_on_debug:
logger.debug("logging of rules which doesn't match suppressed by config/option [logging] rights_rule_doesnt_match_on_debug")
for section in rights_config.sections():
for section in self._rights_config.sections():
group_match = False
user_match = False
try:
user_pattern = rights_config.get(section, "user")
collection_pattern = rights_config.get(section, "collection")
allowed_groups = rights_config.get(section, "groups", fallback="").split(",")
user_pattern = self._rights_config.get(section, "user", fallback="")
collection_pattern = self._rights_config.get(section, "collection")
allowed_groups = self._rights_config.get(section, "groups", fallback="").split(",")
try:
group_match = len(self._user_groups.intersection(allowed_groups)) > 0
except Exception:
pass
# Use empty format() for harmonized handling of curly braces
user_match = re.fullmatch(user_pattern.format(), user)
if user_pattern != "":
user_match = re.fullmatch(user_pattern.format(), user)
user_collection_match = user_match and re.fullmatch(
collection_pattern.format(
*(re.escape(s) for s in user_match.groups()),
@ -85,13 +88,13 @@ class Rights(rights.BaseRights):
raise RuntimeError("Error in section %r of rights file %r: "
"%s" % (section, self._filename, e)) from e
if user_match and user_collection_match:
permission = rights_config.get(section, "permissions")
permission = self._rights_config.get(section, "permissions")
logger.debug("Rule %r:%r matches %r:%r from section %r permission %r",
user, sane_path, user_pattern,
collection_pattern, section, permission)
return permission
if group_match and group_collection_match:
permission = rights_config.get(section, "permissions")
permission = self._rights_config.get(section, "permissions")
logger.debug("Rule %r:%r matches %r:%r from section %r permission %r by group membership",
user, sane_path, user_pattern,
collection_pattern, section, permission)