NOTE: This is an OASIS TC Open Repository. See the Governance section for more information.

cti-taxii-client is a minimal client implementation for the TAXII 2.X server. It supports the following TAXII 2.X API services:

• Server Discovery
• Get API Root Information
• Get Status
• Get Collections
• Get a Collection
• Get Objects
• Add Objects
• Get an Object
• Delete an Object (2.1 only)
• Get Object Manifests
• Get Object Versions (2.1 only)

The easiest way to install the TAXII client is with pip

$ pip install taxii2-client

The TAXII client is intended to be used as a Python library. There are no command line clients at this time.

taxii2-client provides four classes:

• Server
• ApiRoot
• Collection
• Status

Each can be instantiated by passing a url, and (optional) user and password arguments. The authorization information is stored in the instance, so it need not be supplied explicitly when requesting services. By default, the latest version of the supported spec will be imported. If you need a specific version you can perform the following:

from taxii2client.v21 import Server
server = Server('https://example.com/taxii2/', user='user_id', password='user_password')

Once you have instantiated a Server object, you can get all metadata about its contents via its properties:

print(server.title)

This will lazily load and cache the server's information in the instance:

• api_roots
• title
• description
• default (i.e. the default API root)
• contact

You can follow references to ApiRoot objects, Collection objects, and (STIX) objects in those collections.

api_root = server.api_roots[0]
collection = api_root.collections[0]
collection.add_objects(stix_bundle)

Each ApiRoot has attributes corresponding to its meta data

• title
• description
• max_content_length
• collections

Each Collection has attributes corresponding to its meta data:

• id
• title
• description
• alias (2.1 only)
• can_write
• can_read
• media_types

A Collection can also be instantiated directly:

# Performing TAXII 2.0 Requests
from taxii2client.v20 import Collection, as_pages

collection = Collection('https://example.com/api1/collections/91a7b528-80eb-42ed-a74d-c6fbd5a26116')
print(collection.get_object('indicator--252c7c11-daf2-42bd-843b-be65edca9f61'))

# For normal (no pagination) requests
print(collection.get_objects())
print(collection.get_manifest())

# For pagination requests.
# Use *args for other arguments to the call and **kwargs to pass filter information
for bundle in as_pages(collection.get_objects, per_request=50):
    print(bundle)

for manifest_resource in as_pages(collection.get_manifest, per_request=50):
    print(manifest_resource)

# ---------------------------------------------------------------- #
# Performing TAXII 2.1 Requests
from taxii2client.v21 import Collection, as_pages

collection = Collection('https://example.com/api1/collections/91a7b528-80eb-42ed-a74d-c6fbd5a26116')
print(collection.get_object('indicator--252c7c11-daf2-42bd-843b-be65edca9f61'))

# For normal (no pagination) requests
print(collection.get_objects())
print(collection.get_manifest())

# For pagination requests.
# Use *args for other arguments to the call and **kwargs to pass filter information
for envelope in as_pages(collection.get_objects, per_request=50):
    print(envelope)

for manifest_resource in as_pages(collection.get_manifest, per_request=50):
    print(manifest_resource)

In addition to the object-specific properties and methods, all classes have a refresh() method that reloads the URL corresponding to that resource, to ensure properties have the most up-to-date values.

This GitHub public repository ( https://github.com/oasis-open/cti-taxii-client ) was created at the request of the OASIS Cyber Threat Intelligence (CTI) TC as an OASIS TC Open Repository to support development of open source resources related to Technical Committee work.

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