In content proposals, in the popup window "Browse existing relationships" is should be possible to filter the relationship to get only a specific type of object.

In some use cases for the SEKOIA.IO TIP an end user may need to ask analysts to create a specific intelligence report or take actions. A mechanism of Request for Intelligence (RFI) can be created to handle those use cases. This feature will rely on the content proposals so we can take profit of the existing workflows: * Users having the right to create an RFI (new permissions will be required) will have a new button in the UI allowing them to create a RFI. * When listing content proposals it should be possible to apply a filter to get only the one that are part of an RFI. * In the details of a content proposals the informations about the RFI must be available. We should be able to see the kind of RFI, its description, the priority, ...

In order to be able to improve the review of a content proposal and allow interactions between the assignee and the reviewer, a comment feature would be useful inside a content proposal page. Comments capabilities must be added to the content proposal page, so the assignee and the reviewer may exchange informations.

In content proposal, Allow user to import as many observables as needed and be able to convert all of them into IOCs.

When a user creates a new content proposal, allow him to mass change indicators' attributes. For example: allow user to change TLP attribute for all indicators.

As of now in warning rules we have the options to choose an excluded tag and its validity. Those fields are going to be replaced by exclusion regexes. Exclusion regexes are a list of regexes that applies on the pattern of the indicator and that, if matching, will prevent the warning from being created. Here's an example of what this field could look like: ``` [ "http(s)?://drive\.google\.com/file/d/", "http(s)?://www.dropbox.com/s/" ] ``` A few elements: * This field is optional and if not set is equal to [] * It must be possible to add a new item in the list * It must be possible to remove an item from the list * We must have a tooltip explaining the field * The previous fields Excluded tag value and ``Excluded tag validity` must be removed

In the content proposals relationships with indicators must have the start_time and the stop_time set accordingly to the ones in the indicator. It concerns only the relationship that are in the same content proposal. We should also have a migration adding those attributes on existing relationships.

Some of our customers would like to have Single Sign-On (SSO) for their users. This way, existing users wouldn’t have to create a dedicated account on their SEKOIA.IO Enterprise instance. The smartest way of doing so, is to provide OpenID Connect (OIDC) in SEKOIA.IO Enterprise so we can authenticate on the platform through Office 365 or via Azure Active Directory.