Redirects don't always return absolute URL

[Joshua Munn]

Given the query:

fragment Redirect on Redirect {
  isPermanent
  newUrl
  oldPath
  oldUrl
  page {
    id
  }
  site {
    id
    hostname
    port
    siteName
    rootPage {
      id
    }
    isDefaultSite
  }
}

query MyQuery {
  redirects {
    ...Redirect
  }
}

and data:

 id | old_path | is_permanent |        redirect_link         | redirect_page_id | site_id | automatically_created |          created_at           | redirect_page_route_path 
----+----------+--------------+------------------------------+------------------+---------+-----------------------+-------------------------------+--------------------------
  2 | /foo/bar | t            | https://example.com/foo/baz/ |                  |       2 | f                     | 2024-02-01 10:59:52.64715+00  | 
  1 | /quux    | t            |                              |                3 |         | f                     | 2024-02-01 10:59:18.243172+00 | 

I get results:

{
  "data": {
    "redirects": [
      {
        "isPermanent": true,
        "newUrl": "https://example.com/foo/baz/",
        "oldPath": "/foo/bar",
        "oldUrl": "http://localhost:3000/foo/bar",
        "page": null,
        "site": {
          "hostname": "localhost",
          "id": "2",
          "isDefaultSite": true,
          "port": 3000,
          "rootPage": {
            "id": "3"
          },
          "siteName": "Localhost"
        }
      },
      {
        "isPermanent": true,
        "newUrl": "/",
        "oldPath": "/quux",
        "oldUrl": "http://localhost:3000/quux",
        "page": {
          "id": "3"
        },
        "site": {
          "hostname": "localhost",
          "id": "2",
          "isDefaultSite": true,
          "port": 3000,
          "rootPage": {
            "id": "3"
          },
          "siteName": "Localhost"
        }
      }
    ]
  }
}

Note the new URL for /quux is relative.

[Dan Braghiș]

Possibly related to the changes in #380

[Joshua Munn]

Having thought about this some more, it seems to me that it should be OK for oldUrl to be relative - taking into account that a redirect may be "from all sites". However, it would make sense for newUrl to always be absolute - users can either select a Page to redirect to, which must belong to a site to be routable, or enter a URL, which validation prevents from being relative.

URLField is really just a CharField with validation, so it's possible that junk values exist in the database for Site.redirect_link, but that seems unlikely under normal circumstances.

[Joshua Munn]

Closing this, I think the current behaviour is correct. See #391 (comment)