def _update_hash(checksum, rule):
"""
Update the given checksum with all required fields of the given rule.
"""
checksum.update(to_str_from_unicode(rule.ruleset, should_be_uni=True))
checksum.update(to_str_from_unicode(rule.name, should_be_uni=True))
for type_ in rule.types:
checksum.update(to_str_from_unicode(type_, should_be_uni=True))
# Do not take filter into account
# ruleset_h.update(str(rule.filter))
checksum.update(to_str_from_unicode(replace_if_none_by_uni(rule.action), \
should_be_uni=True))
checksum.update(to_str_from_unicode(replace_if_none_by_uni(rule.depsfinder), \
should_be_uni=True))
checksum.update(to_str_from_unicode(replace_if_none_by_uni(rule.help), \
should_be_uni=True))
for dep in rule.dependson:
checksum.update(to_str_from_unicode(replace_if_none_by_uni(dep), \
should_be_uni=True))
def add_rule(self, rule, commit=True):
"""
Create a single entry in the DB.
"""
# NB: it is OK to remove the conversion to str because all the args used
# to create a Rule are unicode-typed (done in the main).
# As create_rule_from_string_array converts the string "None" to
# the value None, we have to convert it back.
config = self.config_for_ruleset.setdefault(rule.ruleset,
UnicodeConfigParser())
_LOGGER.info("Adding rule: %s to %s", rule, str(config.sections()))
try:
config.add_section(rule.name)
except DuplicateSectionError as dse:
_LOGGER.debug("DuplicateSectionError catched: %s"
" -> raising DuplicateRuleError", dse)
raise DuplicateRuleError(rule.ruleset, rule.name)
config.set(rule.name, 'types', ",".join(rule.types))
config.set(rule.name, 'filter', replace_if_none_by_uni(rule.filter))
# was "... str(rule.action))"
config.set(rule.name, 'action', replace_if_none_by_uni(rule.action))
# was "... str(rule.depsfinder))"
config.set(rule.name, 'depsfinder',
replace_if_none_by_uni(rule.depsfinder))
config.set(rule.name, 'dependson',
NONE_VALUE if len(rule.dependson) == 0 else u",".join(rule.dependson))
# was "... str(rule.comments))"
config.set(rule.name, 'comments', replace_if_none_by_uni(rule.comments))
# was "... str(rule.help))"
config.set(rule.name, 'help', replace_if_none_by_uni(rule.help))
if commit:
self._commit_all_changes([rule.ruleset])
def update_rule(self, ruleset, name, update_set, nodeps=False, commit=True):
"""
Update the column 'col' of the given rule ('ruleset', 'name')
with the given value 'val'. Return true Iff the given rule has
been successfully updated. False otherwise.
"""
config = self.config_for_ruleset.get(ruleset)
if config is None:
raise UnknownRuleSet(ruleset)
if not config.has_section(name):
raise NoSuchRuleError(ruleset, name)
new_ruleset = None
new_name = None
new_config = None
_LOGGER.info("Updating rule (%s, %s) with %s",
ruleset, name, str(update_set))
record_set = []
# Remove ruleset and name from the record as they are not
# present in the config file (config file name is the ruleset,
# and section is the rule name)
for record in update_set:
if record[0].upper() == 'NAME':
if not nodeps:
new_name = record[1]
continue
if record[0].upper() == 'RULESET':
new_ruleset = record[1]
continue
record_set.append(record)
if _LOGGER.isEnabledFor(logging.DEBUG):
_LOGGER.debug("Original config: %s", str(config.items(name)))
_LOGGER.debug("Config change: %s", str(record_set))
section_name = new_name if new_name is not None else name
# Copy and remove rule from previous config if a new ruleset
# has been specified
if new_ruleset is not None:
new_config = self.config_for_ruleset.setdefault(new_ruleset,
UnicodeConfigParser())
if new_config.has_section(section_name):
raise ValueError("Cannot move (%s, %s)" % (ruleset, name) + \
" to (%s, %s):" % (new_ruleset,
section_name) + \
" destination already exists")
# Copy
_LOGGER.debug("Copying (%s, %s) section to (%s, %s)",
ruleset, name, new_ruleset, section_name)
new_config.add_section(section_name)
for (option, value) in config.items(name):
new_config.set(section_name, option, value)
# Remove
_LOGGER.debug("Removing section (%s, %s)", ruleset, name)
config.remove_section(name)
# Copy rule to a new section if new name has been specified
elif new_name is not None:
items = list(config.items(name))
# Remove
_LOGGER.debug("Removing section (%s, %s)", ruleset, name)
config.remove_section(name)
# Copy
if config.has_section(section_name):
raise ValueError("Cannot move (%s, %s)" % (ruleset, name) + \
" to (%s, %s):" % (ruleset,
section_name) + \
" destination already exists")
_LOGGER.debug("Copying (%s, %s) section to (%s, %s)",
ruleset, name, ruleset, section_name)
config.add_section(section_name)
for (option, value) in items:
config.set(section_name, option, value)
# Update
final_config = config if new_ruleset is None else new_config
for record in record_set:
# Was : str(record[0]), str(record[1]). Unnecessary because all the
# args used are unicode-typed (done in the main).
final_config.set(section_name, record[0],
replace_if_none_by_uni(record[1]))
_LOGGER.debug("Final config: %s",
final_config.items(section_name))
# Update dependencies
if not nodeps and (new_name is not None or new_ruleset is not None):
try:
rules = self.get_rules_for(ruleset)
for rule in rules.values():
deps = rule.dependson
if deps is not None and name in deps:
deps.remove(name)
if new_ruleset is None:
deps.add(new_name)
update_set = set()
update_set.add(("dependson", ",".join(deps)))
_LOGGER.info("Updating deps of %s: ", rule)
self.update_rule(ruleset, rule.name, update_set,
nodeps=False, commit=False)
except UnknownRuleSet:
pass
if commit:
self._commit_all_changes()
return True
def test_replace_if_none_by_uni(self):
noneval = None
noneuni = lib.replace_if_none_by_uni(noneval)
assert type(noneuni) == unicode
assert noneuni == u"None"
