Merge branch 'taxii-data-source' of https://github.com/mitre/cti-python-stix2 into taxii-data-source
=
commit
03f9af4b96
|
|
@ -1,4 +1,4 @@
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'''
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"""
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Python STIX 2.0 Composite Data Source and Data Source (classes)
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@ -6,24 +6,28 @@ Python STIX 2.0 Composite Data Source and Data Source (classes)
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-Test everything
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-add_filter(), remove_filter(), deduplicate() - if these functions remain the exact same for
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both CompositeDataSource and DataSource, they just inherit/have module access to
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-add_filter(), remove_filter(), deduplicate() - if these functions remain
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the exact same for both CompositeDataSource and DataSource, they just
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inherit/have module access to
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'''
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"""
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import abc
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import copy
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import uuid
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from six import iteritems
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def make_id():
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str(uuid.uuid4())
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return str(uuid.uuid4())
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# STIX 2.0 fields used to denote object version
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STIX_VERSION_FIELDS = ['id', 'modified']
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# currently, only STIX 2.0 common SDO fields (that are not compex objects) are supported for filtering on
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# Currently, only STIX 2.0 common SDO fields (that are not compex objects)
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# are supported for filtering on
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STIX_COMMON_FIELDS = [
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'type',
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'id',
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@ -32,11 +36,11 @@ STIX_COMMON_FIELDS = [
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'modified',
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'revoked',
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'labels',
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# 'external_references', #list of external references object type - not supported for filtering
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# 'external_references', # list of external references object type - not supported for filtering
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'object_references',
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'object_marking_refs',
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'granular_marking_refs',
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# 'granular_markings' #list of granular-marking type - not supported for filtering
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# 'granular_markings' # list of granular-marking type - not supported for filtering
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]
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@ -51,28 +55,26 @@ FILTER_VALUE_TYPES = [bool, dict, float, int, list, str, tuple]
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class CompositeDataSource(object):
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'''Composite Data Source
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"""Composite Data Source
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Acts as a controller for all the defined/configured STIX Data Sources
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e.g. a user can defined n Data Sources - creating Data Source (objects)
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for each. There is only one instance of this for any python STIX 2.0 application
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for each. There is only one instance of this for any python STIX 2.0
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application
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'''
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"""
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def __init__(self, name="CompositeDataSource"):
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'''
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"""
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Creates a new STIX Data Source.
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Args:
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'data_sources' (dict): a dict of DataSource objects; to be controlled and used by
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the Data Source Controller object
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'data_sources' (dict): a dict of DataSource objects; to be
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controlled and used by the Data Source Controller object
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filters :
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name :
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Returns:
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'''
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"""
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self.id_ = make_id()
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self.name = name
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self.data_sources = {}
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@ -80,7 +82,7 @@ class CompositeDataSource(object):
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self.filter_allowed = {}
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def get(self, id_):
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'''retrieve STIX object by 'id'
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"""Retrieve STIX object by 'id'
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federated retrieve method-iterates through all STIX data sources
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defined in the "data_sources" parameter. Each data source has a
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@ -97,12 +99,12 @@ class CompositeDataSource(object):
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Returns:
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stix_obj (dict): the STIX object to be returned
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'''
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"""
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all_data = []
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# for every configured Data Source, call its retrieve handler
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for ds_id, ds in self.data_sources.iteritems():
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for ds_id, ds in iteritems(self.data_sources):
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data = ds.get(id_=id_, _composite_filters=self.filters.values())
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all_data += data
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@ -116,7 +118,7 @@ class CompositeDataSource(object):
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return stix_obj
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def all_versions(self, id_):
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'''retrieve STIX objects by 'id'
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"""Retrieve STIX objects by 'id'
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Federated all_versions retrieve method - iterates through all STIX data
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sources defined in "data_sources"
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@ -129,22 +131,23 @@ class CompositeDataSource(object):
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Returns:
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all_data (list): list of STIX objects that have the specified id
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'''
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"""
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all_data = []
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# retrieve STIX objects from all configured data sources
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for ds_id, ds in self.data_sources.iteritems():
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for ds_id, ds in iteritems(self.data_sources):
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data = ds.all_versions(id_=id_, _composite_filters=self.filters.values())
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all_data += data
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# remove exact duplicates (where duplicates are STIX 2.0 objects with the same 'id' and 'modified' values)
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# remove exact duplicates (where duplicates are STIX 2.0 objects
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# with the same 'id' and 'modified' values)
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if len(all_data) > 0:
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all_data = self.deduplicate(all_data)
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return all_data
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def query(self, query=None):
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'''composite data source query
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"""composite data source query
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Federate the query to all Data Sources attached
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to the Composite Data Source
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@ -155,32 +158,35 @@ class CompositeDataSource(object):
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Returns:
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all_data (list): list of STIX objects to be returned
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'''
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"""
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if not query:
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query = []
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all_data = []
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# federate query to all attached data sources, pass composite filters to them
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for ds_id, ds in self.data_sources.iteritems():
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# federate query to all attached data sources,
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# pass composite filters to them
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for ds_id, ds in iteritems(self.data_sources):
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data = ds.query(query=query, _composite_filters=self.filters.values())
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all_data += data
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# remove exact duplicates (where duplicates are STIX 2.0 objects with the same 'id' and 'modified' values)
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# remove exact duplicates (where duplicates are STIX 2.0
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# objects with the same 'id' and 'modified' values)
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if len(all_data) > 0:
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all_data = self.deduplicate(all_data)
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return all_data
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def add_data_source(self, data_sources):
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'''add/attach Data Source to the Composite Data Source instance
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"""add/attach Data Source to the Composite Data Source instance
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Args:
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data_sources (list): a list of Data Source objects to attach to the Composite Data Source
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data_sources (list): a list of Data Source objects to attach
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to the Composite Data Source
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Returns:
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'''
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"""
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for ds in data_sources:
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if issubclass(ds, DataSource):
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@ -188,37 +194,40 @@ class CompositeDataSource(object):
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# data source already attached to Composite Data Source
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continue
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# add data source to Composite Data Source (its id will be its key identifier)
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# add data source to Composite Data Source
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# (its id will be its key identifier)
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self.data_sources[ds['id']] = ds
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else:
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# the Data Source object is not a proper subclass of DataSource Abstract Class
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# the Data Source object is not a proper subclass
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# of DataSource Abstract Class
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# TODO: maybe log error?
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continue
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return
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def remove_data_source(self, data_source_ids):
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'''remove/detach Data Source from the Composite Data Source instance
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"""remove/detach Data Source from the Composite Data Source instance
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Args:
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data_source_ids (list): a list of Data Source id's( which are strings )
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data_source_ids (list): a list of Data Source
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id's(which are strings)
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Returns:
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'''
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"""
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for id_ in data_source_ids:
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try:
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if self.data_sources[id_]:
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del self.data_sources[id_]
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except KeyError:
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# Data Source 'id' was not found in CompositeDataSource's list of data sources
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# Data Source 'id' was not found in CompositeDataSource's
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# list of data sources
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pass
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return
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def get_data_sources(self):
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'''return all attached Data Sources
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"""return all attached Data Sources
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TODO: Make this a property?
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@ -226,11 +235,11 @@ class CompositeDataSource(object):
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Returns:
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||||
'''
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"""
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return copy.deepcopy(self.data_sources.values())
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def add_filter(self, filters):
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'''add/attach a filter to the Composite Data Source instance
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"""add/attach a filter to the Composite Data Source instance
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Args:
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filters (list): list of filters (dict) to add to the Data Source
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@ -238,7 +247,7 @@ class CompositeDataSource(object):
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Returns:
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status (list): list of status/error messages
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'''
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"""
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status = []
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errors = []
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@ -271,12 +280,11 @@ class CompositeDataSource(object):
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allowed = False
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errors.append("Filter 'value' type is not supported. The type(value) must be python immutable type or dictionary")
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'''
|
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Filter is added regardless of whether it fits requirements
|
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to be a common filter. This is done because some filters
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may be added and used by third party Data Sources, where
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the filtering may be conducted within those plugins, just not here
|
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'''
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# Filter is added regardless of whether it fits requirements
|
||||
# to be a common filter. This is done because some filters
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# may be added and used by third party Data Sources, where the
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# filtering may be conducted within those plugins, just not here
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id_ = make_id()
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filter_['id'] = id_
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self.filters['id_'] = filter_
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@ -306,7 +314,7 @@ class CompositeDataSource(object):
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return ids, status
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def remove_filter(self, filter_ids):
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'''remove/detach a filter from the Data Source instance
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"""Remove/detach a filter from the Data Source instance
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Args:
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filter_ids (list): list of filter id's (which are strings)
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|
@ -314,7 +322,7 @@ class CompositeDataSource(object):
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|||
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||||
Returns:
|
||||
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||||
'''
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||||
"""
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||||
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||||
for filter_id in filter_ids:
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||||
try:
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|
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@ -322,35 +330,36 @@ class CompositeDataSource(object):
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del self.filters[filter_id]
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del self.filter_allowed[filter_id]
|
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except KeyError:
|
||||
# filter id not found in list of filters attached to the Composite Data Source
|
||||
# filter id not found in list of filters
|
||||
# attached to the Composite Data Source
|
||||
pass
|
||||
|
||||
return
|
||||
|
||||
def get_filters(self):
|
||||
'''return filters attached to Composite Data Source
|
||||
"""return filters attached to Composite Data Source
|
||||
|
||||
Args:
|
||||
|
||||
Returns:
|
||||
(list): the list of filters currently attached to the Data Source
|
||||
|
||||
'''
|
||||
"""
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||||
return copy.deepcopy(list(self.filters.values()))
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||||
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def deduplicate(self, stix_obj_list):
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'''deduplicate a list fo STIX objects to a unique set
|
||||
"""deduplicate a list fo STIX objects to a unique set
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||||
|
||||
Reduces a set of STIX objects to unique set by looking
|
||||
at 'id' and 'modified' fields - as a unique object version is determined
|
||||
by the combination of those fields
|
||||
at 'id' and 'modified' fields - as a unique object version
|
||||
is determined by the combination of those fields
|
||||
|
||||
Args:
|
||||
stix_obj_list (list): list of STIX objects (dicts)
|
||||
|
||||
Returns:
|
||||
(list): unique set of the passed list of STIX objects
|
||||
'''
|
||||
"""
|
||||
|
||||
unique = []
|
||||
dont_have = False
|
||||
|
|
@ -367,7 +376,7 @@ class CompositeDataSource(object):
|
|||
|
||||
|
||||
class DataSource(object):
|
||||
'''
|
||||
"""
|
||||
Abstract Data Source class for STIX 2.0
|
||||
|
||||
An implementer will create a concrete subclass from
|
||||
|
|
@ -377,7 +386,7 @@ class DataSource(object):
|
|||
supply them to a Composite Data Source which calls
|
||||
the subclass methods when conducting STIX 2.0
|
||||
data retrievals.
|
||||
'''
|
||||
"""
|
||||
|
||||
__metaclass__ = abc.ABCMeta
|
||||
|
||||
|
|
@ -389,85 +398,91 @@ class DataSource(object):
|
|||
|
||||
@abc.abstractmethod
|
||||
def get(self, id_, _composite_filters=None):
|
||||
'''
|
||||
"""
|
||||
Fill:
|
||||
-implement the specific data source API calls, processing, functionality
|
||||
requried for retrieving data from the data source
|
||||
-implement the specific data source API calls, processing,
|
||||
functionality required for retrieving data from the data source
|
||||
|
||||
Args:
|
||||
|
||||
id (str): the id of the STIX 2.0 object to retrieve. Should return a single object,
|
||||
the most recent version of the object specified by the "id".
|
||||
id_ (str): the id of the STIX 2.0 object to retrieve. Should
|
||||
return a single object, the most recent version of the object
|
||||
specified by the "id".
|
||||
|
||||
_composite_filters (list): list of filters passed along from the Composite Data Filter
|
||||
_composite_filters (list): list of filters passed along from
|
||||
the Composite Data Filter.
|
||||
|
||||
Returns:
|
||||
stix_obj (dictionary): the STIX object to be returned
|
||||
|
||||
'''
|
||||
raise NotImplementedError
|
||||
"""
|
||||
raise NotImplementedError()
|
||||
|
||||
@abc.abstractmethod
|
||||
def all_versions(self, id_, _composite_filters=None):
|
||||
'''
|
||||
"""
|
||||
Fill:
|
||||
-Similar to get() except returns list of all object versions of the specified "id".
|
||||
|
||||
-implement the specific data source API calls, processing, functionality
|
||||
requried for retrieving data from the data source
|
||||
-Similar to get() except returns list of all object versions of
|
||||
the specified "id".
|
||||
|
||||
-implement the specific data source API calls, processing,
|
||||
functionality required for retrieving data from the data source
|
||||
|
||||
Args:
|
||||
id (str): The id of the STIX 2.0 object to retrieve. Should return a list of objects,
|
||||
all the versions of the object specified by the "id".
|
||||
id_ (str): The id of the STIX 2.0 object to retrieve. Should
|
||||
return a list of objects, all the versions of the object
|
||||
specified by the "id".
|
||||
|
||||
_composite_filters (list): list of filters passed from the Composite Data Source
|
||||
_composite_filters (list): list of filters passed from the
|
||||
Composite Data Source
|
||||
|
||||
Returns:
|
||||
stix_objs (list): a list of STIX objects(where each object is a STIX object)
|
||||
|
||||
'''
|
||||
stix_objs (list): a list of STIX objects (where each object is a
|
||||
STIX object)
|
||||
"""
|
||||
stix_objs = []
|
||||
|
||||
return stix_objs
|
||||
|
||||
@abc.abstractmethod
|
||||
def query(self, query, _composite_filters=None):
|
||||
'''
|
||||
"""
|
||||
Fill:
|
||||
-implement the specific data source API calls, processing, functionality
|
||||
requried for retrieving query from the data source
|
||||
-implement the specific data source API calls, processing,
|
||||
functionality required for retrieving query from the data source
|
||||
|
||||
Args:
|
||||
query (list): a list of filters (which collectively are the query) to conduct search on
|
||||
query (list): a list of filters (which collectively are the query)
|
||||
to conduct search on
|
||||
|
||||
_composite_filters (list): a list of filters passed from the Composite Data Source
|
||||
_composite_filters (list): a list of filters passed from the
|
||||
Composite Data Source
|
||||
|
||||
Returns:
|
||||
|
||||
|
||||
'''
|
||||
"""
|
||||
stix_objs = []
|
||||
|
||||
return stix_objs
|
||||
|
||||
@abc.abstractmethod
|
||||
def close(self):
|
||||
'''
|
||||
"""
|
||||
Fill:
|
||||
Close, release, shutdown any objects, contexts, variables
|
||||
Args:
|
||||
|
||||
Returns:
|
||||
(list): list of status/error messages
|
||||
'''
|
||||
"""
|
||||
|
||||
status = []
|
||||
|
||||
return status
|
||||
|
||||
def add_filter(self, filters):
|
||||
'''add/attach a filter to the Data Source instance
|
||||
"""add/attach a filter to the Data Source instance
|
||||
|
||||
Args:
|
||||
filters (list): list of filters (dict) to add to the Data Source
|
||||
|
|
@ -475,7 +490,7 @@ class DataSource(object):
|
|||
Returns:
|
||||
status (list): list of status/error messages
|
||||
|
||||
'''
|
||||
"""
|
||||
|
||||
status = []
|
||||
errors = []
|
||||
|
|
@ -508,12 +523,11 @@ class DataSource(object):
|
|||
allowed = False
|
||||
errors.append("Filter 'value' type is not supported. The type(value) must be python immutable type or dictionary")
|
||||
|
||||
'''
|
||||
Filter is added regardless of whether it fits requirements
|
||||
to be a common filter. This is done because some filters
|
||||
may be added and used by third party Data Sources, where
|
||||
the filtering may be conducted within those plugins, just not here
|
||||
'''
|
||||
# Filter is added regardless of whether it fits requirements
|
||||
# to be a common filter. This is done because some filters
|
||||
# may be added and used by third party Data Sources, where the
|
||||
# filtering may be conducted within those plugins, just not here
|
||||
|
||||
id_ = make_id()
|
||||
filter_['id'] = id_
|
||||
self.filters[id_] = filter_
|
||||
|
|
@ -543,15 +557,16 @@ class DataSource(object):
|
|||
return ids, status
|
||||
|
||||
def remove_filter(self, filter_ids):
|
||||
'''remove/detach a filter from the Data Source instance
|
||||
"""remove/detach a filter from the Data Source instance
|
||||
|
||||
Args:
|
||||
filter_ids (list): list of filter ids to dettach/remove from Data Source
|
||||
filter_ids (list): list of filter ids to dettach/remove
|
||||
from Data Source
|
||||
|
||||
Returns:
|
||||
|
||||
|
||||
'''
|
||||
"""
|
||||
for filter_id in filter_ids:
|
||||
try:
|
||||
if filter_id in self.filters:
|
||||
|
|
@ -564,18 +579,19 @@ class DataSource(object):
|
|||
return
|
||||
|
||||
def get_filters(self):
|
||||
'''return copy of all filters currently attached to Data Source
|
||||
"""return copy of all filters currently attached to Data Source
|
||||
|
||||
TODO: make this a property?
|
||||
|
||||
Returns:
|
||||
(list): a copy of all the filters(dict) which are attached to Data Source
|
||||
(list): a copy of all the filters(dict) which are attached
|
||||
to Data Source
|
||||
|
||||
'''
|
||||
"""
|
||||
return copy.deepcopy(list(self.filters.values()))
|
||||
|
||||
def apply_common_filters(self, stix_objs, query):
|
||||
'''evaluates filters against a set of STIX 2.0 objects
|
||||
"""evaluates filters against a set of STIX 2.0 objects
|
||||
|
||||
Supports only STIX 2.0 common property fields
|
||||
|
||||
|
|
@ -584,9 +600,10 @@ class DataSource(object):
|
|||
query (list): list of filters (combined form complete query)
|
||||
|
||||
Returns:
|
||||
(list): list of STIX objects that successfully evaluate against the query
|
||||
(list): list of STIX objects that successfully evaluate against
|
||||
the query
|
||||
|
||||
'''
|
||||
"""
|
||||
|
||||
filtered_stix_objs = []
|
||||
|
||||
|
|
@ -595,12 +612,14 @@ class DataSource(object):
|
|||
clean = True
|
||||
for filter_ in query:
|
||||
|
||||
# skip filter as filter was identified (when added) as not a common filter
|
||||
# skip filter as filter was identified (when added) as
|
||||
# not a common filter
|
||||
if 'id' in filter_ and self.filter_allowed[filter_['id']] is False:
|
||||
continue
|
||||
|
||||
# check filter "field" is in STIX object - if cant be applied due to STIX object,
|
||||
# STIX object is discarded (i.e. did not make it through the filter)
|
||||
# check filter "field" is in STIX object - if cant be applied
|
||||
# due to STIX object, STIX object is discarded (i.e. did not
|
||||
# make it through the filter)
|
||||
if filter_['field'] not in stix_obj.keys():
|
||||
break
|
||||
|
||||
|
|
@ -621,34 +640,34 @@ class DataSource(object):
|
|||
else:
|
||||
# filter operation not supported
|
||||
continue
|
||||
'''
|
||||
#TODO: I think the rest of the operations only
|
||||
#apply to timestamps, in which case I dont think
|
||||
#simple operator usage (like below) works
|
||||
|
||||
elif filter_['op'] == ">":
|
||||
if not stix_obj[filter_['field']] > filter_['value']:
|
||||
clean = False
|
||||
break
|
||||
# TODO: I think the rest of the operations only
|
||||
# apply to timestamps, in which case I don't think
|
||||
# simple operator usage (like below) works
|
||||
|
||||
elif filter_['op'] == "<":
|
||||
if not stix_obj[filter_['field']] < filter_['value']:
|
||||
clean = False
|
||||
break
|
||||
|
||||
elif filter_['op'] == ">=":
|
||||
if not stix_obj[filter_['field']] >= filter_['value']:
|
||||
clean = False
|
||||
break
|
||||
|
||||
elif filter_['op'] == "<=":
|
||||
if not stix_obj[filter_['field']] <= filter_['value']:
|
||||
clean = False
|
||||
break
|
||||
'''
|
||||
# elif filter_['op'] == ">":
|
||||
# if not stix_obj[filter_['field']] > filter_['value']:
|
||||
# clean = False
|
||||
# break
|
||||
#
|
||||
# elif filter_['op'] == "<":
|
||||
# if not stix_obj[filter_['field']] < filter_['value']:
|
||||
# clean = False
|
||||
# break
|
||||
#
|
||||
# elif filter_['op'] == ">=":
|
||||
# if not stix_obj[filter_['field']] >= filter_['value']:
|
||||
# clean = False
|
||||
# break
|
||||
#
|
||||
# elif filter_['op'] == "<=":
|
||||
# if not stix_obj[filter_['field']] <= filter_['value']:
|
||||
# clean = False
|
||||
# break
|
||||
|
||||
except TypeError:
|
||||
# type mismatch of comparison operands - ignore filter, no error raised for now
|
||||
# type mismatch of comparison operands - ignore filter,
|
||||
# no error raised for now
|
||||
pass
|
||||
|
||||
# if object unmarked after all filter, add it
|
||||
|
|
@ -660,7 +679,7 @@ class DataSource(object):
|
|||
return filtered_stix_objs
|
||||
|
||||
def deduplicate(self, stix_obj_list):
|
||||
'''deduplicate a list of STIX objects into a unique set
|
||||
"""deduplicate a list of STIX objects into a unique set
|
||||
|
||||
reduces a set of STIX objects to unique set by looking
|
||||
at 'id' and 'modified' fields - as a unique object version
|
||||
|
|
@ -673,7 +692,7 @@ class DataSource(object):
|
|||
(list): a unique set of the passed STIX object list
|
||||
|
||||
|
||||
'''
|
||||
"""
|
||||
unique = []
|
||||
have = False
|
||||
for i in stix_obj_list:
|
||||
|
|
|
|||
|
|
@ -3,12 +3,9 @@ from requests.auth import HTTPBasicAuth
|
|||
|
||||
from stix2.sources import DataSource
|
||||
|
||||
'''
|
||||
TODO:
|
||||
# TODO: -Should we make properties for the TAXIIDataSource address and other
|
||||
# possible variables that are found in "self.taxii_info"
|
||||
|
||||
-Should we make properties for the TAXIIDataSource address and other possible variables
|
||||
that are found in "self.taxii_info"
|
||||
'''
|
||||
|
||||
TAXII_FILTERS = ['added_after', 'id', 'type', 'version']
|
||||
|
||||
|
|
@ -16,10 +13,9 @@ test = True
|
|||
|
||||
|
||||
class TAXIIDataSource(DataSource):
|
||||
'''STIX 2.0 Data Source - TAXII 2.0 module'''
|
||||
|
||||
def __init__(self, api_root=None, auth=None, name="TAXII", ):
|
||||
"""STIX 2.0 Data Source - TAXII 2.0 module"""
|
||||
|
||||
def __init__(self, api_root=None, auth=None, name="TAXII"):
|
||||
super(TAXIIDataSource, self).__init__(name=name)
|
||||
|
||||
if not api_root:
|
||||
|
|
@ -29,8 +25,8 @@ class TAXIIDataSource(DataSource):
|
|||
|
||||
self.taxii_info = {
|
||||
"api_root": {
|
||||
"url": api_root
|
||||
},
|
||||
"url": api_root
|
||||
},
|
||||
"auth": auth
|
||||
}
|
||||
|
||||
|
|
@ -44,7 +40,8 @@ class TAXIIDataSource(DataSource):
|
|||
|
||||
resp = requests.get(coll_url,
|
||||
headers=headers,
|
||||
auth=HTTPBasicAuth(self.taxii_info['auth']['user'], self.taxii_info['auth']['pass']))
|
||||
auth=HTTPBasicAuth(self.taxii_info['auth']['user'],
|
||||
self.taxii_info['auth']['pass']))
|
||||
# TESTING
|
||||
# print("\n-------__init__() ----\n")
|
||||
# print(resp.text)
|
||||
|
|
@ -63,8 +60,10 @@ class TAXIIDataSource(DataSource):
|
|||
if e == "collections":
|
||||
raise
|
||||
# raise type(e), type(e)(e.message +
|
||||
# "To connect to the TAXII collections, the API root resource must contain a collection endpoint URL.
|
||||
# This was not found in the API root resource received from the API root" ), sys.exc_info()[2]
|
||||
# "To connect to the TAXII collections, the API root
|
||||
# resource must contain a collection endpoint URL.
|
||||
# This was not found in the API root resource received
|
||||
# from the API root" ), sys.exc_info()[2]
|
||||
|
||||
except requests.ConnectionError as e:
|
||||
raise
|
||||
|
|
@ -72,20 +71,21 @@ class TAXIIDataSource(DataSource):
|
|||
# "Attempting to connect to %s" % coll_url)
|
||||
|
||||
def get(self, id_, _composite_filters=None):
|
||||
'''get STIX 2 object from TAXII source by specified 'id'
|
||||
"""Get STIX 2.0 object from TAXII source by specified 'id'
|
||||
|
||||
NOTE:
|
||||
-just pass _composite_filters to the query() as they are applied there
|
||||
-deduplication of results is also done within query()
|
||||
Notes:
|
||||
Just pass _composite_filters to the query() as they are applied
|
||||
there. de-duplication of results is also done within query()
|
||||
|
||||
Args:
|
||||
id_ (str): id of STIX object to retrieve
|
||||
|
||||
_composite_filters (list): filters passed from a Composite Data Source (if this data source is attached to one)
|
||||
_composite_filters (list): filters passed from a Composite Data
|
||||
Source (if this data source is attached to one)
|
||||
|
||||
Returns:
|
||||
|
||||
'''
|
||||
"""
|
||||
|
||||
# make query in TAXII query format since 'id' is TAXii field
|
||||
query = [
|
||||
|
|
@ -104,20 +104,21 @@ class TAXIIDataSource(DataSource):
|
|||
return stix_obj
|
||||
|
||||
def all_versions(self, id_, _composite_filters=None):
|
||||
'''get all versions of STIX 2 object from TAXII source by specified 'id'
|
||||
"""Get all versions of STIX 2.0 object from TAXII source by
|
||||
specified 'id'
|
||||
|
||||
NOTE:
|
||||
-just passes _composite_filters to the query() as they are applied there
|
||||
-deduplication of results is also done within query()
|
||||
Notes:
|
||||
Just passes _composite_filters to the query() as they are applied
|
||||
there. de-duplication of results is also done within query()
|
||||
|
||||
Args:
|
||||
id_ (str): id of STIX objects to retrieve
|
||||
|
||||
_composite_filters (list): filters passed from a Composite Data Source (if this data source is attached to one)
|
||||
_composite_filters (list): filters passed from a Composite Data
|
||||
Source (if this data source is attached to one)
|
||||
|
||||
Returns:
|
||||
|
||||
'''
|
||||
The query results with filters applied.
|
||||
"""
|
||||
|
||||
# make query in TAXII query format since 'id' is TAXII field
|
||||
query = [
|
||||
|
|
@ -133,15 +134,16 @@ class TAXIIDataSource(DataSource):
|
|||
return all_data
|
||||
|
||||
def query(self, query=None, _composite_filters=None):
|
||||
'''query the TAXII data source for STIX objects matching the query
|
||||
"""Query the TAXII data source for STIX objects matching the query
|
||||
|
||||
The final full query could contain filters from:
|
||||
-the current API call
|
||||
-Composite Data source filters (that are passed in via '_composite_filters')
|
||||
-Composite Data source filters (that are passed in via
|
||||
'_composite_filters')
|
||||
-TAXII data source filters that are attached
|
||||
|
||||
TAXII filters ['added_after', 'match[<>]'] are extracted and sent to TAXII
|
||||
if they are present
|
||||
TAXII filters ['added_after', 'match[<>]'] are extracted and sent
|
||||
to TAXII if they are present
|
||||
|
||||
TODO: Authentication for TAXII
|
||||
|
||||
|
|
@ -149,12 +151,13 @@ class TAXIIDataSource(DataSource):
|
|||
|
||||
query(list): list of filters (dicts) to search on
|
||||
|
||||
_composite_filters (list): filters passed from a Composite Data Source (if this data source is attached to one)
|
||||
_composite_filters (list): filters passed from a
|
||||
Composite Data Source (if this data source is attached to one)
|
||||
|
||||
Returns:
|
||||
|
||||
|
||||
'''
|
||||
"""
|
||||
|
||||
all_data = []
|
||||
|
||||
|
|
@ -167,24 +170,27 @@ class TAXIIDataSource(DataSource):
|
|||
if _composite_filters:
|
||||
query += _composite_filters
|
||||
|
||||
# seperate taxii query terms (can be done remotely)
|
||||
# separate taxii query terms (can be done remotely)
|
||||
taxii_filters = self._parse_taxii_filters(query)
|
||||
|
||||
# for each collection endpoint - send query request
|
||||
for collection in self.taxii_info['api_root']['collections']:
|
||||
|
||||
coll_obj_url = self.taxii_info['api_root']['url'] + "/collections/" + str(collection['id']) + "/objects/"
|
||||
coll_obj_url = "/".join([self.taxii_info['api_root']['url'],
|
||||
"collections", str(collection['id']),
|
||||
"objects"])
|
||||
headers = {}
|
||||
try:
|
||||
resp = requests.get(coll_obj_url,
|
||||
params=taxii_filters,
|
||||
headers=headers,
|
||||
auth=HTTPBasicAuth(self.taxii_info['auth']['user'], self.taxii_info['auth']['pass']))
|
||||
auth=HTTPBasicAuth(self.taxii_info['auth']['user'],
|
||||
self.taxii_info['auth']['pass']))
|
||||
# TESTING
|
||||
# print("\n-------query() ----\n")
|
||||
# print("Request that was sent: \n")
|
||||
# print(resp.url)
|
||||
# print("Reponse: \n")
|
||||
# print("Response: \n")
|
||||
# print(json.dumps(resp.json(),indent=4))
|
||||
# print("\n")
|
||||
# print(resp.status_code)
|
||||
|
|
@ -204,9 +210,8 @@ class TAXIIDataSource(DataSource):
|
|||
# raise type(e), type(e)(e.message +
|
||||
# "Attempting to connect to %s" % coll_url)
|
||||
|
||||
'''
|
||||
TODO: Is there a way to collect exceptions while carrying on then raise all of them at the end?
|
||||
'''
|
||||
# TODO: Is there a way to collect exceptions while carrying
|
||||
# on then raise all of them at the end?
|
||||
|
||||
# deduplicate data (before filtering as reduces wasted filtering)
|
||||
all_data = self.deduplicate(all_data)
|
||||
|
|
@ -217,24 +222,25 @@ class TAXIIDataSource(DataSource):
|
|||
return all_data
|
||||
|
||||
def _parse_taxii_filters(self, query):
|
||||
'''parse out TAXII filters that the TAXII server can filter on
|
||||
"""Parse out TAXII filters that the TAXII server can filter on
|
||||
|
||||
TAXII filters should be analgous to how they are supplied
|
||||
in the url to the TAXII endpoint. For instance
|
||||
"?match[type]=indicator,sighting" should be in a query dict as follows
|
||||
{
|
||||
"field":"match[type]"
|
||||
"field": "match[type]"
|
||||
"op": "=",
|
||||
"value":"indicator,sighting"
|
||||
"value": "indicator,sighting"
|
||||
}
|
||||
|
||||
Args:
|
||||
query (list): list of filters to extract which ones are TAXII specific
|
||||
query (list): list of filters to extract which ones are TAXII
|
||||
specific.
|
||||
|
||||
Returns:
|
||||
params (dict): dict of the TAXII filters but in format required for 'requests.get()'
|
||||
|
||||
'''
|
||||
params (dict): dict of the TAXII filters but in format required
|
||||
for 'requests.get()'.
|
||||
"""
|
||||
|
||||
params = {}
|
||||
|
||||
|
|
@ -248,12 +254,9 @@ class TAXIIDataSource(DataSource):
|
|||
return params
|
||||
|
||||
def close(self):
|
||||
'''close down the Data Source - if any clean up is required
|
||||
"""Close down the Data Source - if any clean up is required.
|
||||
|
||||
'''
|
||||
"""
|
||||
pass
|
||||
|
||||
'''
|
||||
TODO:
|
||||
- getters/setters (properties) for TAXII config info
|
||||
'''
|
||||
# TODO: - getters/setters (properties) for TAXII config info
|
||||
|
|
|
|||
Loading…
Reference in New Issue