def remove_markings(obj, marking, selectors):
"""
Remove a granular marking from the granular_markings collection.
Args:
obj: An SDO or SRO object.
marking: identifier or list of marking identifiers that apply to the
properties selected by `selectors`.
selectors: string or list of selectors strings relative to the SDO or
SRO in which the properties appear.
Raises:
InvalidSelectorError: If `selectors` fail validation.
MarkingNotFoundError: If markings to remove are not found on
the provided SDO or SRO.
Returns:
A new version of the given SDO or SRO with specified markings removed.
"""
selectors = utils.convert_to_list(selectors)
marking = utils.convert_to_marking_list(marking)
utils.validate(obj, selectors)
granular_markings = obj.get("granular_markings")
if not granular_markings:
return obj
granular_markings = utils.expand_markings(granular_markings)
to_remove = []
for m in marking:
to_remove.append({"marking_ref": m, "selectors": selectors})
remove = utils.build_granular_marking(to_remove).get("granular_markings")
if not any(marking in granular_markings for marking in remove):
raise exceptions.MarkingNotFoundError(obj, remove)
granular_markings = [m for m in granular_markings if m not in remove]
granular_markings = utils.compress_markings(granular_markings)
if granular_markings:
return new_version(obj,
granular_markings=granular_markings,
allow_custom=True)
else:
return new_version(obj, granular_markings=None, allow_custom=True)
def get_markings(obj, selectors, inherited=False, descendants=False):
"""
Get all granular markings associated to with the properties.
Args:
obj: An SDO or SRO object.
selectors: string or list of selector strings relative to the SDO or
SRO in which the properties appear.
inherited: If True, include markings inherited relative to the
properties.
descendants: If True, include granular markings applied to any children
relative to the properties.
Raises:
InvalidSelectorError: If `selectors` fail validation.
Returns:
list: Marking identifiers that matched the selectors expression.
"""
selectors = utils.convert_to_list(selectors)
utils.validate(obj, selectors)
granular_markings = obj.get('granular_markings', [])
if not granular_markings:
return []
results = set()
for marking in granular_markings:
for user_selector in selectors:
for marking_selector in marking.get('selectors', []):
if any([
(user_selector == marking_selector
), # Catch explicit selectors.
(user_selector.startswith(marking_selector)
and inherited), # Catch inherited selectors.
(marking_selector.startswith(user_selector)
and descendants),
]): # Catch descendants selectors
refs = marking.get('marking_ref', [])
results.update([refs])
return list(results)
def add_markings(obj, marking, selectors):
"""
Append a granular marking to the granular_markings collection. The method
makes a best-effort attempt to distinguish between a marking-definition
or language granular marking.
Args:
obj: An SDO or SRO object.
marking: identifier or list of marking identifiers that apply to the
properties selected by `selectors`.
selectors: list of type string, selectors must be relative to the TLO
in which the properties appear.
Raises:
InvalidSelectorError: If `selectors` fail validation.
Returns:
A new version of the given SDO or SRO with specified markings added.
"""
selectors = utils.convert_to_list(selectors)
marking = utils.convert_to_marking_list(marking)
utils.validate(obj, selectors)
granular_marking = []
for m in marking:
if is_marking(m):
granular_marking.append({
'marking_ref': m,
'selectors': sorted(selectors)
})
else:
granular_marking.append({
'lang': m,
'selectors': sorted(selectors)
})
if obj.get('granular_markings'):
granular_marking.extend(obj.get('granular_markings'))
granular_marking = utils.expand_markings(granular_marking)
granular_marking = utils.compress_markings(granular_marking)
return new_version(obj,
granular_markings=granular_marking,
allow_custom=True)
def add_markings(obj, marking, selectors):
"""
Append a granular marking to the granular_markings collection.
Args:
obj: An SDO or SRO object.
marking: identifier or list of marking identifiers that apply to the
properties selected by `selectors`.
selectors: list of type string, selectors must be relative to the TLO
in which the properties appear.
Raises:
InvalidSelectorError: If `selectors` fail validation.
Returns:
A new version of the given SDO or SRO with specified markings added.
"""
selectors = utils.convert_to_list(selectors)
marking = utils.convert_to_marking_list(marking)
utils.validate(obj, selectors)
granular_marking = []
for m in marking:
granular_marking.append({
"marking_ref": m,
"selectors": sorted(selectors)
})
if obj.get("granular_markings"):
granular_marking.extend(obj.get("granular_markings"))
granular_marking = utils.expand_markings(granular_marking)
granular_marking = utils.compress_markings(granular_marking)
return new_version(obj,
granular_markings=granular_marking,
allow_custom=True)
def is_marked(obj,
marking=None,
selectors=None,
inherited=False,
descendants=False):
"""
Check if field is marked by any marking or by specific marking(s).
Args:
obj: An SDO or SRO object.
marking: identifier or list of marking identifiers that apply to the
properties selected by `selectors`.
selectors: string or list of selectors strings relative to the SDO or
SRO in which the properties appear.
inherited: If True, return markings inherited from the given selector.
descendants: If True, return granular markings applied to any children
of the given selector.
Raises:
InvalidSelectorError: If `selectors` fail validation.
Returns:
bool: True if ``selectors`` is found on internal SDO or SRO collection.
False otherwise.
Note:
When a list of marking identifiers is provided, if ANY of the provided
marking identifiers match, True is returned.
"""
if selectors is None:
raise TypeError("Required argument 'selectors' must be provided")
selectors = utils.convert_to_list(selectors)
marking = utils.convert_to_marking_list(marking)
utils.validate(obj, selectors)
granular_markings = obj.get('granular_markings', [])
marked = False
markings = set()
for granular_marking in granular_markings:
for user_selector in selectors:
for marking_selector in granular_marking.get('selectors', []):
if any([
(user_selector == marking_selector
), # Catch explicit selectors.
(user_selector.startswith(marking_selector)
and inherited), # Catch inherited selectors.
(marking_selector.startswith(user_selector)
and descendants),
]): # Catch descendants selectors
marking_ref = granular_marking.get('marking_ref', '')
if marking and any(x == marking_ref for x in marking):
markings.update([marking_ref])
marked = True
if marking:
# All user-provided markings must be found.
return markings.issuperset(set(marking))
return marked
def clear_markings(obj, selectors, marking_ref=True, lang=True):
"""
Remove all granular markings associated with the selectors.
Args:
obj: An SDO or SRO object.
selectors: string or list of selectors strings relative to the SDO or
SRO in which the properties appear.
marking_ref (bool): If False, markings that use the ``marking_ref``
property will not be removed.
lang (bool): If False, markings that use the ``lang`` property
will not be removed.
Raises:
InvalidSelectorError: If `selectors` fail validation.
MarkingNotFoundError: If markings to remove are not found on
the provided SDO or SRO.
Returns:
A new version of the given SDO or SRO with specified markings cleared.
"""
selectors = utils.convert_to_list(selectors)
utils.validate(obj, selectors)
granular_markings = obj.get('granular_markings')
if not granular_markings:
return obj
granular_markings = utils.expand_markings(granular_markings)
granular_dict = utils.build_granular_marking([
{
'selectors': selectors,
'marking_ref': 'N/A'
},
{
'selectors': selectors,
'lang': 'N/A'
},
])
clear = granular_dict.get('granular_markings', [])
if not any(clear_selector in sdo_selectors.get('selectors', [])
for sdo_selectors in granular_markings
for clear_marking in clear
for clear_selector in clear_marking.get('selectors', [])):
raise exceptions.MarkingNotFoundError(obj, clear)
for granular_marking in granular_markings:
for s in selectors:
if s in granular_marking.get('selectors', []):
ref = granular_marking.get('marking_ref')
lng = granular_marking.get('lang')
if ref and marking_ref:
granular_marking['marking_ref'] = ''
if lng and lang:
granular_marking['lang'] = ''
granular_markings = utils.compress_markings(granular_markings)
if granular_markings:
return new_version(obj,
granular_markings=granular_markings,
allow_custom=True)
else:
return new_version(obj, granular_markings=None, allow_custom=True)