Allow internal apps to automatically create installations on behalf of customers

[plittlewood-rpt]

Background context To support the migration of Zoopla Portal Email processing to the Zoopla Leads API, a desktop utility is being built to allow the service teams to setup processing of leads for specific customers. Part of this tool is to automatically generate installations for customers for the accompanying production app/apps. To support this, it should be possible for certain apps to create the installation for the companion app in the marketplace when required. In addition, we should remove the current ability for reapit employees to create any installation as there is no adequate use case for this

Specification

• Project: Marketplace

• Allow a mapping object to be stored at /Platform/Services/Marketplace/appInstallationPermissionsMapping in the following format:

  [{
  "applicationId": "abc1235", // internal app id
  "canInstallApplicationIds": ["def1234", "ghi5678"]
  }]

  Please include a description against this parameter store entry so it's clear what it does. This should be deserialized to a suitable configuration object that can be used in the service

• Update the CreateInstallationCommandHandler to allow requests hitting that handler from applicationId to create installations for any applicationId listed in canInstallApplicationIds - will need to use data in the PlatformIdentity object to achieve this check

• Update the CreateInstallationCommandHandler to remove the ability for Reapit admins to create any installations they like

• Ensure this is well tested

[github-actions[bot]]

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