Custom error messages for auth error in http state backend

[aleivag]

Terraform Version

Terraform v1.3.0
on linux_amd64

Use Cases

when implementing a custom http state backend, when user request to take the lock, if the backend decide the user does not have permissions, then it can return a "403 Forbidden", in that case the output the user see uts

│ Error: Error acquiring the state lock
│ 
│ Error message: HTTP remote state endpoint invalid auth
│ 
│ Terraform acquires a state lock to protect the state from being written
│ by multiple users at the same time. Please resolve the issue above and try
│ again. For most commands, you can disable locking with the "-lock=false"
│ flag, but this is not recommended.

independent of the body of the response, robing the http backend server the opportunity to provide information to the user on what to do.

Attempted Solutions

no could not find one

Proposal

I'm happy to write this, but my solution would be to on the backend code and probbaly other special casesto read the body of the response, and if the body its JSON with the field "errmsg" then display that message... if not, display the original error.

example... if the response body its:

{
   "msg": "You dont have permission to access this state file, please request it through http://bar.biz/request/tf"
}

then the display should look like

│ Error: Error acquiring the state lock
│
│ Error message: You dont have permission to access this state file, please request it through http://bar.biz/request/tf
│
│ Terraform acquires a state lock to protect the state from being written
│ by multiple users at the same time. Please resolve the issue above and try
│ again. For most commands, you can disable locking with the "-lock=false"
│ flag, but this is not recommended.

References

none that i could find

[crw]

Thanks for this feature request!