TheHive4py got a second wind, version 1.7.0 released

“TheHive4py”, this sounds like a word you didn’t hear about during the last 12 months. Well, our focus on this library was put on hold. We will tell you the reason, but much better, we will solve the problem.

A brief review

TheHive4py was quickly initiated after the first releases of TheHive to help developers interact with TheHive APIs using python. We started creating methods and functions for main functionalities and to be honest, it was a sort of a quick-and-dirty solution.

TheHive4py has some limitation:

  • The API client is a flat class with dozens of methods
  • The API clients’ methods return the native `requests.Reponse` class instead of a structured data
  • Exception handling could be improved
  • Code could be made more reusable

As developers, we are aware of these limitations and are eager to provide a better library, and that’s what we started making with TheHive4py rewrite. We wanted to provide you with a library you can use this way:

# Fetch cases
open_cases = api.cases.find_all({'status': 'Open'}, range='0-5')
log('Open cases', list(map(lambda i: i.json(), open_cases)))

# Fetch a case by `id` or `number` (caseId)
sample_case = open_cases[0]
log('case details by id', api.cases.get_by_id(sample_case.id).json())
log('case details by number', api.cases.get_by_number(sample_case.caseId).json())

# Fetch alerts
new_alerts = api.alerts.find_all({'status': 'New'}, range='0-2')
log('New alerts', list(map(lambda i: i.json(), new_alerts)))

# Fetch observables
domain_observables = api.observables.find_all({'dataType': 'domain'}, range='0-2')
log('New alerts', list(map(lambda i: i.json(), domain_observables)))

# Fetch tasks
waiting_tasks = api.tasks.find_all({'status': 'Waiting'}, range='0-2')
log('Waiting tasks', list(map(lambda i: i.json(), waiting_tasks)))

waiting_tasks = api.tasks.get_waiting(range='0-2')
log('Waiting tasks', list(map(lambda i: i.json(), waiting_tasks)))

jdoe_tasks = api.tasks.get_by_user('jdoe', {}, range='0-3')
log('Tasks of jdoe', list(map(lambda i: i.json(), jdoe_tasks)))

case_tasks = api.tasks.of_case(sample_case.id, query={'status': 'Waiting'})
log('Case tasks', list(map(lambda i: i.json(), case_tasks)))

The library’s rewrite was supposed to produce a 2.0.0 version of TheHive4py but we had a major issue: backward compatibility.

Well, in theory, backward compatibility can be handled through a clear communication to:

  • tell the users how to make sure to update their dependencies to TheHive4py < 2.0.0
  • provide a migration plan
  • maintain both versions during a certain time
  • maintain documentation for old and new versions

To be honest, this was hard to achieve, because of the famous lack of time, but things a going to change.

What’s the plan?

We didn’t want to make a plan without asking the community about how they interact with TheHive APIs. So we did two twitter polls that ended up with the following results:

Twitter poll about TheHive API usage methods

The second poll asked our users about pros and cons of TheHive4py:

Twitter poll about TheHive4py pros and cons

The poll results are clear: we need to put more efforts on TheHive4py.

Here we go, firstly, let’s release version 1.7.0

TheHive4py 1.7.0 milestone has been initiated almost one year ago, and we are happy to announce its availability today.

What’s new about it?

The most important change is allowing TheHive4py to interact with TheHive 4 in addition to introducing some missing features, and bug fixes. Here is a short listing of main changes:

Add support to multi tenancy

Allow a developer to specify the organisation against which an API call is done:

api = TheHiveApi('http://my_thehive:9000', 'my_api_key', organisation='cert')

Add custom field support for new types:

TheHive 4 introduces custom fields of type integer and float, this feature allows specifying custom fields with types supported by TheHive 4. These types are not supported by TheHive 3.

CustomFieldHelper
   .add_integer('number_hits', 10)
   .add_float('cvss', 5.6)
   .build()

The code snippet above produces the following content:

{
  "number_hits": {
    "order": 0,
    "integer": 100
  },
  "cvss": {
    "order": 1,
    "integer": 5.6
  }
}

Add support to like and wildcard query operators

TheHive query DSL supports like and wildcard operators, but TheHive4py didn’t had an option to use those operators. In this version the following query methods have been added:

  • Like (field, value): Field’s value must contain value, that must contain `*` in the beginning or at the end
  • StratsWith (field, value): Field’s value must start with value
  • EndsWith (field, value): Field’s value must end with value
  • ContainsString (field, value): Field’s value must contain value
from thehive4py.query import Eq, Like, And, StartsWith

# find cases where title contains 'Dridex'
api.find_cases(query=Like('title', 'Dridex*'))

# find alerts where status is 'New' and title starts with 'Emotet'
api.find_alert(query=And(Eq('status', 'New'), StartsWith('title', 'Emotet')))

Add ioc and sighted attributes to case and alert artifacts

This allows specifying these attributes during Alert or Case observables creation

Add update_case_observable method

Can be used to patch an existing observable, by setting a tag or marking as IOC.

Add PAP to Case and CaseTemplate models

PAP flag has been added in TheHive recently and TheHive4py was not able to set the PAP value of a Case or CaseTemplate

Add custom fields creation method

Added a `create_custom_field` method that check custom field name uniqueness before creating it.

Note: This method is for now, compatible with TheHive 3 only because it relies on the DBList API that is no longer available on TheHive 4.

Add case template creation method

Added a `create_case_template` method allowing developers to create new Case Templates.

The full change log is available at the release page

What about documentation

Once again we are glad to announce the initial version of a documentation website, dedicated to TheHive4py, including documentation of all the features the library provides, and code samples of the most useful features.

We aim to maintain and improve this documentation over time, so please, don’t hesitate to either contribute or ask for more content.

Screenshot of the documentation website

TheHive4py 2.0

We will put the rewrite of TheHive4py on hold for now and will communicate about it again when we are ready. In the meantime, we will continue maintaining TheHive4py 1.x.

Update: TheHive4py 1.7.1 Patch

During the release 1.7.0, we have noticed that the build process and deployment went wrong, so we have created a 1.7.0.post1 release.

The community also raised a regression that has been fixed in 1.7.1 release. You can read the change log for more details.

Updating/Installing

To update your existing package to version 1.7.0:

$ sudo pip install thehive4py --upgrade

Got a question?

If you encounter any difficulty, please join our  user forum, contact us on Gitter, or send us an email at support@thehive-project.org. As usual, we’ll be more than happy to help!