Use ErrNotAuthenticated

commands/webui.go

@@ -211,13 +211,13 @@ func newGitUploadFileHandler(repo repository.Repo) http.Handler {
 }
 
 func (gufh *gitUploadFileHandler) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
-	id, err := graphqlidentity.ForContextUncached(r.Context(), gufh.repo)
+	_, err := graphqlidentity.ForContextUncached(r.Context(), gufh.repo)
-	if err != nil {
+	if err == graphqlidentity.ErrNotAuthenticated {
-		http.Error(rw, fmt.Sprintf("loading identity: %v", err), http.StatusInternalServerError)
-		return
-	} else if id == nil {
 		http.Error(rw, fmt.Sprintf("read-only mode or not logged in"), http.StatusForbidden)
 		return
+	} else if err != nil {
+		http.Error(rw, fmt.Sprintf("loading identity: %v", err), http.StatusInternalServerError)
+		return
 	}
 
 	// 100MB (github limit)

graphql/graphqlidentity/errors.go

@@ -1,4 +1,4 @@
-package resolvers
+package graphqlidentity
 
 import "errors"
 

graphql/graphqlidentity/graphqlidentity.go

@@ -18,22 +18,24 @@ func AttachToContext(ctx context.Context, u *identity.Identity) context.Context
 	return context.WithValue(ctx, identityCtxKey, u.Id())
 }
 
-// ForContext retrieves an IdentityCache from the context, or nil if no identity is present.
+// ForContext retrieves an IdentityCache from the context.
+// If there is no identity in the context, ErrNotAuthenticated is returned.
 // If an error occurs while resolving the identity (e.g. I/O error), then it will be returned.
 func ForContext(ctx context.Context, r *cache.RepoCache) (*cache.IdentityCache, error) {
 	id, ok := ctx.Value(identityCtxKey).(entity.Id)
 	if !ok {
-		return nil, nil
+		return nil, ErrNotAuthenticated
 	}
 	return r.ResolveIdentity(id)
 }
 
-// ForContextUncached retrieves an Identity from the context, or nil if no identity is present.
+// ForContextUncached retrieves an Identity from the context.
+// If there is no identity in the context, ErrNotAuthenticated is returned.
 // If an error occurs while resolving the identity (e.g. I/O error), then it will be returned.
 func ForContextUncached(ctx context.Context, repo repository.Repo) (*identity.Identity, error) {
 	id, ok := ctx.Value(identityCtxKey).(entity.Id)
 	if !ok {
-		return nil, nil
+		return nil, ErrNotAuthenticated
 	}
 	return identity.ReadLocal(repo, id)
 }

graphql/resolvers/mutation.go

@@ -47,8 +47,6 @@ func (r mutationResolver) NewBug(ctx context.Context, input models.NewBugInput)
 	id, err := graphqlidentity.ForContext(ctx, repo)
 	if err != nil {
 		return nil, err
-	} else if id == nil {
-		return nil, ErrNotAuthenticated
 	}
 
 	b, op, err := repo.NewBugRaw(id, time.Now().Unix(), input.Title, input.Message, input.Files, nil)
@@ -72,8 +70,6 @@ func (r mutationResolver) AddComment(ctx context.Context, input models.AddCommen
 	id, err := graphqlidentity.ForContext(ctx, repo)
 	if err != nil {
 		return nil, err
-	} else if id == nil {
-		return nil, ErrNotAuthenticated
 	}
 
 	op, err := b.AddCommentRaw(id, time.Now().Unix(), input.Message, input.Files, nil)
@@ -102,8 +98,6 @@ func (r mutationResolver) ChangeLabels(ctx context.Context, input *models.Change
 	id, err := graphqlidentity.ForContext(ctx, repo)
 	if err != nil {
 		return nil, err
-	} else if id == nil {
-		return nil, ErrNotAuthenticated
 	}
 
 	results, op, err := b.ChangeLabelsRaw(id, time.Now().Unix(), input.Added, input.Removed, nil)
@@ -138,8 +132,6 @@ func (r mutationResolver) OpenBug(ctx context.Context, input models.OpenBugInput
 	id, err := graphqlidentity.ForContext(ctx, repo)
 	if err != nil {
 		return nil, err
-	} else if id == nil {
-		return nil, ErrNotAuthenticated
 	}
 
 	op, err := b.OpenRaw(id, time.Now().Unix(), nil)
@@ -168,8 +160,6 @@ func (r mutationResolver) CloseBug(ctx context.Context, input models.CloseBugInp
 	id, err := graphqlidentity.ForContext(ctx, repo)
 	if err != nil {
 		return nil, err
-	} else if id == nil {
-		return nil, ErrNotAuthenticated
 	}
 
 	op, err := b.CloseRaw(id, time.Now().Unix(), nil)
@@ -198,8 +188,6 @@ func (r mutationResolver) SetTitle(ctx context.Context, input models.SetTitleInp
 	id, err := graphqlidentity.ForContext(ctx, repo)
 	if err != nil {
 		return nil, err
-	} else if id == nil {
-		return nil, ErrNotAuthenticated
 	}
 
 	op, err := b.SetTitleRaw(id, time.Now().Unix(), input.Title, nil)

graphql/resolvers/repo.go

@@ -152,10 +152,10 @@ func (repoResolver) Identity(_ context.Context, obj *models.Repository, prefix s
 
 func (repoResolver) UserIdentity(ctx context.Context, obj *models.Repository) (models.IdentityWrapper, error) {
 	id, err := graphqlidentity.ForContext(ctx, obj.Repo)
-	if err != nil {
+	if err == graphqlidentity.ErrNotAuthenticated {
-		return nil, err
-	} else if id == nil {
 		return nil, nil
+	} else if err != nil {
+		return nil, err
 	}
 	return models.NewLoadedIdentity(id.Identity), nil
 }