add port and schema to federation host (#7203)

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### Tests

- I added test coverage for Go changes...
  - [x] in their respective `*_test.go` for unit tests.
  - [ ] in the `tests/integration` directory if it involves interactions with a live Forgejo server.

### Documentation

- [ ] I created a pull request [to the documentation](https://codeberg.org/forgejo/docs) to explain to Forgejo users how to use this change.
- [ ] I did not document these changes and I do not expect someone else to do it.

### Release notes

- [ ] I do not want this change to show in the release notes.
- [ ] I want the title to show in the release notes with a link to this pull request.
- [ ] I want the content of the `release-notes/<pull request number>.md` to be be used for the release notes instead of the title.

Co-authored-by: Michael Jerger <michael.jerger@meissa-gmbh.de>
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/7203
Reviewed-by: Earl Warren <earl-warren@noreply.codeberg.org>
Co-authored-by: zam <mirco.zachmann@meissa.de>
Co-committed-by: zam <mirco.zachmann@meissa.de>

models/forgejo_migrations/v30_test.go

@@ -0,0 +1,81 @@
+// Copyright 2025 The Forgejo Authors.
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package forgejo_migrations //nolint:revive
+
+import (
+	"testing"
+	"time"
+
+	migration_tests "forgejo.org/models/migrations/test"
+	"forgejo.org/modules/timeutil"
+
+	"github.com/stretchr/testify/require"
+	"xorm.io/xorm/schemas"
+)
+
+func Test_MigrateNormalizedFederatedURI(t *testing.T) {
+	// Old structs
+	type User struct {
+		ID                     int64 `xorm:"pk autoincr"`
+		NormalizedFederatedURI string
+	}
+	type FederatedUser struct {
+		ID               int64  `xorm:"pk autoincr"`
+		UserID           int64  `xorm:"NOT NULL"`
+		ExternalID       string `xorm:"UNIQUE(federation_user_mapping) NOT NULL"`
+		FederationHostID int64  `xorm:"UNIQUE(federation_user_mapping) NOT NULL"`
+	}
+	type FederationHost struct {
+		ID             int64              `xorm:"pk autoincr"`
+		HostFqdn       string             `xorm:"host_fqdn UNIQUE INDEX VARCHAR(255) NOT NULL"`
+		SoftwareName   string             `xorm:"NOT NULL"`
+		LatestActivity time.Time          `xorm:"NOT NULL"`
+		Created        timeutil.TimeStamp `xorm:"created"`
+		Updated        timeutil.TimeStamp `xorm:"updated"`
+	}
+
+	// Prepare TestEnv
+	x, deferable := migration_tests.PrepareTestEnv(t, 0,
+		new(User),
+		new(FederatedUser),
+		new(FederationHost),
+	)
+	defer deferable()
+	if x == nil || t.Failed() {
+		return
+	}
+
+	// test for expected results
+	getColumn := func(tn, co string) *schemas.Column {
+		tables, err := x.DBMetas()
+		require.NoError(t, err)
+		var table *schemas.Table
+		for _, elem := range tables {
+			if elem.Name == tn {
+				table = elem
+				break
+			}
+		}
+		return table.GetColumn(co)
+	}
+
+	require.NotNil(t, getColumn("user", "normalized_federated_uri"))
+	require.Nil(t, getColumn("federation_host", "host_port"))
+	require.Nil(t, getColumn("federation_host", "host_schema"))
+	cnt1, err := x.Table("federated_user").Count()
+	require.NoError(t, err)
+	require.Equal(t, int64(2), cnt1)
+
+	require.NoError(t, MigrateNormalizedFederatedURI(x))
+
+	require.Nil(t, getColumn("user", "normalized_federated_uri"))
+	require.NotNil(t, getColumn("federation_host", "host_port"))
+	require.NotNil(t, getColumn("federation_host", "host_schema"))
+	cnt2, err := x.Table("federated_user").Count()
+	require.NoError(t, err)
+	require.Equal(t, int64(1), cnt2)
+
+	// idempotent
+	require.NoError(t, MigrateNormalizedFederatedURI(x))
+}