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fix: only redirect to a new owner (organization or user) if the user has permissions to view the new owner (#9072)

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Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/9072
Reviewed-by: Gusted <gusted@noreply.codeberg.org>
Reviewed-by: 0ko <0ko@noreply.codeberg.org>
This commit is contained in:
Earl Warren 2025-08-30 13:14:06 +02:00
commit b982fde455
18 changed files with 252 additions and 67 deletions
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5
services/context/org.go
View file

@ -16,6 +16,7 @@ import (
"forgejo.org/modules/markup/markdown"
"forgejo.org/modules/setting"
"forgejo.org/modules/structs"
redirect_service "forgejo.org/services/redirect"
)
// Organization contains organization context
@ -48,13 +49,13 @@ func GetOrganizationByParams(ctx *Context) {
ctx.Org.Organization, err = organization.GetOrgByName(ctx, orgName)
if err != nil {
if organization.IsErrOrgNotExist(err) {
redirectUserID, err := user_model.LookupUserRedirect(ctx, orgName)
redirectUserID, err := redirect_service.LookupUserRedirect(ctx, ctx.Doer, orgName)
if err == nil {
RedirectToUser(ctx.Base, orgName, redirectUserID)
} else if user_model.IsErrUserRedirectNotExist(err) {
ctx.NotFound("GetUserByName", err)
} else {
ctx.ServerError("LookupUserRedirect", err)
ctx.ServerError("LookupRedirect", err)
}
} else {
ctx.ServerError("GetUserByName", err)

7
services/context/repo.go
View file

@ -35,6 +35,7 @@ import (
"forgejo.org/modules/setting"
"forgejo.org/modules/util"
asymkey_service "forgejo.org/services/asymkey"
redirect_service "forgejo.org/services/redirect"
"github.com/editorconfig/editorconfig-core-go/v2"
)
@ -477,12 +478,12 @@ func RepoAssignment(ctx *Context) context.CancelFunc {
return nil
}
if redirectUserID, err := user_model.LookupUserRedirect(ctx, userName); err == nil {
if redirectUserID, err := redirect_service.LookupUserRedirect(ctx, ctx.Doer, userName); err == nil {
RedirectToUser(ctx.Base, userName, redirectUserID)
} else if user_model.IsErrUserRedirectNotExist(err) {
ctx.NotFound("GetUserByName", nil)
} else {
ctx.ServerError("LookupUserRedirect", err)
ctx.ServerError("LookupRedirect", err)
}
} else {
ctx.ServerError("GetUserByName", err)
@ -519,7 +520,7 @@ func RepoAssignment(ctx *Context) context.CancelFunc {
repo, err := repo_model.GetRepositoryByName(ctx, owner.ID, repoName)
if err != nil {
if repo_model.IsErrRepoNotExist(err) {
redirectRepoID, err := repo_model.LookupRedirect(ctx, owner.ID, repoName)
redirectRepoID, err := redirect_service.LookupRepoRedirect(ctx, ctx.Doer, owner.ID, repoName)
if err == nil {
RedirectToRepo(ctx.Base, redirectRepoID)
} else if repo_model.IsErrRedirectNotExist(err) {

5
services/context/user.go
View file

@ -9,6 +9,7 @@ import (
"strings"
user_model "forgejo.org/models/user"
redirect_service "forgejo.org/services/redirect"
)
// UserAssignmentWeb returns a middleware to handle context-user assignment for web routes
@ -68,12 +69,12 @@ func userAssignment(ctx *Base, doer *user_model.User, errCb func(int, string, an
contextUser, err = user_model.GetUserByName(ctx, username)
if err != nil {
if user_model.IsErrUserNotExist(err) {
if redirectUserID, err := user_model.LookupUserRedirect(ctx, username); err == nil {
if redirectUserID, err := redirect_service.LookupUserRedirect(ctx, doer, username); err == nil {
RedirectToUser(ctx, username, redirectUserID)
} else if user_model.IsErrUserRedirectNotExist(err) {
errCb(http.StatusNotFound, "GetUserByName", err)
} else {
errCb(http.StatusInternalServerError, "LookupUserRedirect", err)
errCb(http.StatusInternalServerError, "LookupRedirect", err)
}
} else {
errCb(http.StatusInternalServerError, "GetUserByName", err)

18
services/redirect/main_test.go Normal file
View file

@ -0,0 +1,18 @@
// Copyright 2025 The Forgejo Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package redirect
import (
"testing"
"forgejo.org/models/unittest"
_ "forgejo.org/models"
_ "forgejo.org/models/actions"
_ "forgejo.org/models/activities"
_ "forgejo.org/models/forgefed"
)
func TestMain(m *testing.M) {
unittest.MainTest(m)
}

37
services/redirect/repo.go Normal file
View file

@ -0,0 +1,37 @@
// Copyright 2025 The Forgejo Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package redirect
import (
"context"
access_model "forgejo.org/models/perm/access"
repo_model "forgejo.org/models/repo"
user_model "forgejo.org/models/user"
)
// LookupRepoRedirect returns the repository ID if there's a redirect registered for
// the ownerID repository name pair. It checks if the doer has permission to view
// the new repository.
func LookupRepoRedirect(ctx context.Context, doer *user_model.User, ownerID int64, repoName string) (int64, error) {
redirectID, err := repo_model.GetRedirect(ctx, ownerID, repoName)
if err != nil {
return 0, err
}
redirectRepo, err := repo_model.GetRepositoryByID(ctx, redirectID)
if err != nil {
return 0, err
}
perm, err := access_model.GetUserRepoPermission(ctx, redirectRepo, doer)
if err != nil {
return 0, err
}
if !perm.HasAccess() {
return 0, repo_model.ErrRedirectNotExist{OwnerID: ownerID, RepoName: repoName, MissingPermission: true}
}
return redirectID, nil
}

55
services/redirect/repo_test.go Normal file
View file

@ -0,0 +1,55 @@
// Copyright 2025 The Forgejo Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package redirect
import (
"testing"
repo_model "forgejo.org/models/repo"
"forgejo.org/models/unittest"
user_model "forgejo.org/models/user"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestLookupRepoRedirect(t *testing.T) {
require.NoError(t, unittest.PrepareTestDatabase())
normalUser := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 5})
ownerUser := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 20})
testOk := func(t *testing.T, doer *user_model.User, ownerID int64, repoName string, expectedRedirectID int64) {
t.Helper()
redirectID, err := LookupRepoRedirect(t.Context(), doer, ownerID, repoName)
require.NoError(t, err)
assert.Equal(t, expectedRedirectID, redirectID)
}
testFail := func(t *testing.T, doer *user_model.User, ownerID int64, repoName string) {
t.Helper()
redirectID, err := LookupRepoRedirect(t.Context(), doer, ownerID, repoName)
require.ErrorIs(t, err, repo_model.ErrRedirectNotExist{OwnerID: ownerID, RepoName: repoName, MissingPermission: true})
assert.Zero(t, redirectID)
}
t.Run("Public repository", func(t *testing.T) {
ownerID := int64(2)
reponame := "oldrepo1"
testOk(t, nil, ownerID, reponame, 1)
testOk(t, normalUser, ownerID, reponame, 1)
testOk(t, ownerUser, ownerID, reponame, 1)
})
t.Run("Private repository", func(t *testing.T) {
ownerID := int64(17)
reponame := "oldrepo24"
testFail(t, nil, ownerID, reponame)
testFail(t, normalUser, ownerID, reponame)
testOk(t, ownerUser, ownerID, reponame, 24)
})
}

30
services/redirect/user.go Normal file
View file

@ -0,0 +1,30 @@
// Copyright 2025 The Forgejo Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package redirect
import (
"context"
user_model "forgejo.org/models/user"
)
// LookupUserRedirect returns the userID if there's a redirect registered for the
// username. It additionally checks if the doer has permission to view the new
// user.
func LookupUserRedirect(ctx context.Context, doer *user_model.User, userName string) (int64, error) {
redirect, err := user_model.GetUserRedirect(ctx, userName)
if err != nil {
return 0, err
}
redirectUser, err := user_model.GetUserByID(ctx, redirect.RedirectUserID)
if err != nil {
return 0, err
}
if !user_model.IsUserVisibleToViewer(ctx, redirectUser, doer) {
return 0, user_model.ErrUserRedirectNotExist{Name: userName, MissingPermission: true}
}
return redirect.RedirectUserID, nil
}

65
services/redirect/user_test.go Normal file
View file

@ -0,0 +1,65 @@
// Copyright 2025 The Forgejo Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package redirect
import (
"testing"
"forgejo.org/models/unittest"
user_model "forgejo.org/models/user"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestLookupUserRedirect(t *testing.T) {
require.NoError(t, unittest.PrepareTestDatabase())
adminUser := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
normalUser := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
testOk := func(t *testing.T, doer *user_model.User, username string, expectedRedirectID int64) {
t.Helper()
redirectID, err := LookupUserRedirect(t.Context(), doer, username)
require.NoError(t, err)
assert.Equal(t, expectedRedirectID, redirectID)
}
testFail := func(t *testing.T, doer *user_model.User, username string) {
t.Helper()
redirectID, err := LookupUserRedirect(t.Context(), doer, username)
require.ErrorIs(t, err, user_model.ErrUserRedirectNotExist{Name: username, MissingPermission: true})
assert.Zero(t, redirectID)
}
t.Run("Public visibility", func(t *testing.T) {
username := "olduser1"
redirectID := int64(1)
testOk(t, nil, username, redirectID)
testOk(t, normalUser, username, redirectID)
testOk(t, adminUser, username, redirectID)
})
t.Run("Limited visibility", func(t *testing.T) {
username := "oldorg22"
redirectID := int64(22)
testFail(t, nil, username)
testOk(t, normalUser, username, redirectID)
testOk(t, adminUser, username, redirectID)
})
t.Run("Private visibility", func(t *testing.T) {
orgUser := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 5})
username := "oldorg23"
redirectID := int64(23)
testFail(t, nil, username)
testFail(t, normalUser, username)
testOk(t, orgUser, username, redirectID)
testOk(t, adminUser, username, redirectID)
})
}

3
services/user/user_test.go
View file

@ -26,6 +26,7 @@ import (
"forgejo.org/modules/test"
"forgejo.org/modules/timeutil"
"forgejo.org/services/auth/source/oauth2"
redirect_service "forgejo.org/services/redirect"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
@ -184,7 +185,7 @@ func TestRenameUser(t *testing.T) {
require.NoError(t, RenameUser(db.DefaultContext, user, newUsername))
unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: user.ID, Name: newUsername, LowerName: strings.ToLower(newUsername)})
redirectUID, err := user_model.LookupUserRedirect(db.DefaultContext, oldUsername)
redirectUID, err := redirect_service.LookupUserRedirect(db.DefaultContext, user, oldUsername)
require.NoError(t, err)
assert.Equal(t, user.ID, redirectUID)