Display warning in version-check if installed version needs to be updated because of critical issues (CVE)

[dragonchaser]

Initial Checklist

• I understand this is a feature request and questions should be posted in the Community Discussions
• I searched issues and couldn’t find anything (or linked relevant results below)

Idea

The version information is retrieved from: https://update.opencloud.eu/server.json, extend the json to contain a field "critical" for each update-channel. If the installed version matches one of the versions mentioned there, visually display a hint in the bottom left version display to indicate that the admin urgently needs to update.

Proposed structure:

{
   "channels":{
      "rolling":{
         "current_version":"5.0.2",
         "url":"https://github.com/opencloud-eu/opencloud/releases/tag/v5.0.2",
         "critical":"5.0.1,5.0.2"
      },
      "stable":{
         "current_version":"4.0.3",
         "url":"https://github.com/opencloud-eu/opencloud/releases/tag/v4.0.3",
         "critical":"4.0.1,4.0.2"
      },
      "lts":{
         "current_version":"2.0.5",
         "url":"https://github.com/opencloud-eu/opencloud/releases/tag/v2.0.5",
         "critical":"2.0.1,2.0.2,2.0.3,2.0.4"
      },
      "lts-2.0":{
         "current_version":"2.0.5",
         "url":"https://github.com/opencloud-eu/opencloud/releases/tag/v2.0.5",
         "critical":"2.0.1,2.0.2,2.0.3,2.0.4"
      }
   }
}

[AlexAndBear]

I like the idea, we need PM decision.

@dragonchaser any reason why you propse the field critical to be a string instead of string[], which is easier to consume?

[dragonchaser]

@AlexAndBear it is just a proposal, use whatever works best for you and what is easy to maintain in the longrun