[Sharing NG] add OCM Shares to SharingNG

[micbar]

Description

User Stories

• As an app developer, i need to interact with ocm shares on the graph API to list my shares

Value

Acceptance Criteria

Definition of ready

• Everybody needs to understand the value written in the user story
• Acceptance criteria have to be defined
• All dependencies of the user story need to be identified
• Feature should be seen from an end user perspective
• Story has to be estimated
• Story points need to be less than 20

Definition of done

• Functional requirements
  • Functionality described in the user story works
  • Acceptance criteria are fulfilled
• Quality
  • Code review happened
  • CI is green (that includes new and existing automated tests)
  • Critical code received unit tests by the developer
• Non-functional requirements
  • No sonar cloud issues
• Configuration changes
  • The next branch of the ocis charts is compatible

[butonic]

This requires being able to list users from remote instances. Our graph DriveRecipients use the ObjectId and a LibreGraphRecipientType ... which is used to differentiate users and groups ... we could use "remote_user" and "remote_group" ...

The cs3 Gateway has a FindAcceptedUsers in addition to FindUsers. It uses the OCMInviteManager which is filled by invite requests.

But how are invites actually sent out? I don't see ui ... maybe part of sciencemesh. Needs further investigation. Maybe with curl requests for now ...

These users would then have type UserType_USER_TYPE_FEDERATED.

I still need to wrap my head around this further ...

[micbar]

#8909