fix: disable API v1 write methods (closes #112)

Remove POST /apps, DELETE /apps/{id}, and POST /apps/{id}/deploy from
the API v1 route group. These endpoints used cookie-based session auth
without CSRF protection, creating a CSRF vulnerability.

Read-only endpoints (GET /apps, GET /apps/{id}, GET /apps/{id}/deployments),
login, and whoami are retained.

Removed handlers: HandleAPICreateApp, HandleAPIDeleteApp,
HandleAPITriggerDeploy, along with apiCreateRequest struct and
validateCreateRequest function.

Updated tests to use service layer directly for app creation in
remaining read-only endpoint tests.

internal/handlers/api.go

@@ -1,7 +1,6 @@
 package handlers
 
 import (
-	"context"
 	"encoding/json"
 	"net/http"
 	"strconv"
@@ -9,7 +8,6 @@ import (
 	"github.com/go-chi/chi/v5"
 
 	"git.eeqj.de/sneak/upaas/internal/models"
-	"git.eeqj.de/sneak/upaas/internal/service/app"
 )
 
 // apiAppResponse is the JSON representation of an app.
@@ -176,121 +174,6 @@ func (h *Handlers) HandleAPIGetApp() http.HandlerFunc {
 	}
 }
 
-// apiCreateRequest is the JSON body for creating an app via the API.
-type apiCreateRequest struct {
-	Name           string `json:"name"`
-	RepoURL        string `json:"repoUrl"`
-	Branch         string `json:"branch"`
-	DockerfilePath string `json:"dockerfilePath"`
-	DockerNetwork  string `json:"dockerNetwork"`
-	NtfyTopic      string `json:"ntfyTopic"`
-	SlackWebhook   string `json:"slackWebhook"`
-}
-
-// validateCreateRequest validates the fields of an API create app request.
-// Returns an error message string or empty string if valid.
-func validateCreateRequest(req *apiCreateRequest) string {
-	if req.Name == "" || req.RepoURL == "" {
-		return "name and repo_url are required"
-	}
-
-	nameErr := validateAppName(req.Name)
-	if nameErr != nil {
-		return "invalid app name: " + nameErr.Error()
-	}
-
-	repoURLErr := validateRepoURL(req.RepoURL)
-	if repoURLErr != nil {
-		return "invalid repository URL: " + repoURLErr.Error()
-	}
-
-	return ""
-}
-
-// HandleAPICreateApp returns a handler that creates a new app.
-func (h *Handlers) HandleAPICreateApp() http.HandlerFunc {
-	return func(writer http.ResponseWriter, request *http.Request) {
-		var req apiCreateRequest
-
-		decodeErr := json.NewDecoder(request.Body).Decode(&req)
-		if decodeErr != nil {
-			h.respondJSON(writer, request,
-				map[string]string{"error": "invalid JSON body"},
-				http.StatusBadRequest)
-
-			return
-		}
-
-		if errMsg := validateCreateRequest(&req); errMsg != "" {
-			h.respondJSON(writer, request,
-				map[string]string{"error": errMsg},
-				http.StatusBadRequest)
-
-			return
-		}
-
-		createdApp, createErr := h.appService.CreateApp(request.Context(), app.CreateAppInput{
-			Name:           req.Name,
-			RepoURL:        req.RepoURL,
-			Branch:         req.Branch,
-			DockerfilePath: req.DockerfilePath,
-			DockerNetwork:  req.DockerNetwork,
-			NtfyTopic:      req.NtfyTopic,
-			SlackWebhook:   req.SlackWebhook,
-		})
-		if createErr != nil {
-			h.log.Error("api: failed to create app", "error", createErr)
-			h.respondJSON(writer, request,
-				map[string]string{"error": "failed to create app"},
-				http.StatusInternalServerError)
-
-			return
-		}
-
-		h.respondJSON(writer, request, appToAPI(createdApp), http.StatusCreated)
-	}
-}
-
-// HandleAPIDeleteApp returns a handler that deletes an app.
-func (h *Handlers) HandleAPIDeleteApp() http.HandlerFunc {
-	return func(writer http.ResponseWriter, request *http.Request) {
-		appID := chi.URLParam(request, "id")
-
-		application, err := h.appService.GetApp(request.Context(), appID)
-		if err != nil {
-			h.respondJSON(writer, request,
-				map[string]string{"error": "internal server error"},
-				http.StatusInternalServerError)
-
-			return
-		}
-
-		if application == nil {
-			h.respondJSON(writer, request,
-				map[string]string{"error": "app not found"},
-				http.StatusNotFound)
-
-			return
-		}
-
-		// Stop and remove the Docker container before deleting the DB record
-		h.cleanupContainer(request.Context(), appID, application.Name)
-
-		deleteErr := h.appService.DeleteApp(request.Context(), application)
-		if deleteErr != nil {
-			h.log.Error("api: failed to delete app", "error", deleteErr)
-			h.respondJSON(writer, request,
-				map[string]string{"error": "failed to delete app"},
-				http.StatusInternalServerError)
-
-			return
-		}
-
-		h.respondJSON(writer, request,
-			map[string]string{"status": "deleted"}, http.StatusOK)
-	}
-}
-
 // deploymentsPageLimit is the default number of deployments per page.
 const deploymentsPageLimit = 20
 
@@ -337,39 +220,6 @@ func (h *Handlers) HandleAPIListDeployments() http.HandlerFunc {
 	}
 }
 
-// HandleAPITriggerDeploy returns a handler that triggers a deployment for an app.
-func (h *Handlers) HandleAPITriggerDeploy() http.HandlerFunc {
-	return func(writer http.ResponseWriter, request *http.Request) {
-		appID := chi.URLParam(request, "id")
-
-		application, err := h.appService.GetApp(request.Context(), appID)
-		if err != nil || application == nil {
-			h.respondJSON(writer, request,
-				map[string]string{"error": "app not found"},
-				http.StatusNotFound)
-
-			return
-		}
-
-		// Use a detached context so the deployment continues even if the
-		// HTTP client disconnects.
-		deployCtx := context.WithoutCancel(request.Context())
-
-		deployErr := h.deploy.Deploy(deployCtx, application, nil, true)
-		if deployErr != nil {
-			h.log.Error("api: failed to trigger deploy", "error", deployErr)
-			h.respondJSON(writer, request,
-				map[string]string{"error": deployErr.Error()},
-				http.StatusConflict)
-
-			return
-		}
-
-		h.respondJSON(writer, request,
-			map[string]string{"status": "deploying"}, http.StatusAccepted)
-	}
-}
-
 // HandleAPIWhoAmI returns a handler that shows the current authenticated user.
 func (h *Handlers) HandleAPIWhoAmI() http.HandlerFunc {
 	type whoAmIResponse struct {

internal/handlers/api_test.go

@@ -10,6 +10,8 @@ import (
 	"github.com/go-chi/chi/v5"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+
+	"git.eeqj.de/sneak/upaas/internal/service/app"
 )
 
 // apiRouter builds a chi router with the API routes using session auth middleware.
@@ -23,10 +25,7 @@ func apiRouter(tc *testContext) http.Handler {
 			apiR.Use(tc.middleware.APISessionAuth())
 			apiR.Get("/whoami", tc.handlers.HandleAPIWhoAmI())
 			apiR.Get("/apps", tc.handlers.HandleAPIListApps())
-			apiR.Post("/apps", tc.handlers.HandleAPICreateApp())
 			apiR.Get("/apps/{id}", tc.handlers.HandleAPIGetApp())
-			apiR.Delete("/apps/{id}", tc.handlers.HandleAPIDeleteApp())
-			apiR.Post("/apps/{id}/deploy", tc.handlers.HandleAPITriggerDeploy())
 			apiR.Get("/apps/{id}/deployments", tc.handlers.HandleAPIListDeployments())
 		})
 	})
@@ -62,23 +61,16 @@ func setupAPITest(t *testing.T) (*testContext, []*http.Cookie) {
 	return tc, cookies
 }
 
-// apiRequest makes an authenticated API request using session cookies.
-func apiRequest(
+// apiGet makes an authenticated GET request using session cookies.
+func apiGet(
 	t *testing.T,
 	tc *testContext,
 	cookies []*http.Cookie,
-	method, path string,
-	body string,
+	path string,
 ) *httptest.ResponseRecorder {
 	t.Helper()
 
-	var req *http.Request
-	if body != "" {
-		req = httptest.NewRequest(method, path, strings.NewReader(body))
-		req.Header.Set("Content-Type", "application/json")
-	} else {
-		req = httptest.NewRequest(method, path, nil)
-	}
+	req := httptest.NewRequest(http.MethodGet, path, nil)
 
 	for _, c := range cookies {
 		req.AddCookie(c)
@@ -175,7 +167,7 @@ func TestAPIWhoAmI(t *testing.T) {
 
 	tc, cookies := setupAPITest(t)
 
-	rr := apiRequest(t, tc, cookies, http.MethodGet, "/api/v1/whoami", "")
+	rr := apiGet(t, tc, cookies, "/api/v1/whoami")
 	assert.Equal(t, http.StatusOK, rr.Code)
 
 	var resp map[string]any
@@ -188,7 +180,7 @@ func TestAPIListAppsEmpty(t *testing.T) {
 
 	tc, cookies := setupAPITest(t)
 
-	rr := apiRequest(t, tc, cookies, http.MethodGet, "/api/v1/apps", "")
+	rr := apiGet(t, tc, cookies, "/api/v1/apps")
 	assert.Equal(t, http.StatusOK, rr.Code)
 
 	var apps []any
@@ -196,52 +188,23 @@ func TestAPIListAppsEmpty(t *testing.T) {
 	assert.Empty(t, apps)
 }
 
-func TestAPICreateApp(t *testing.T) {
-	t.Parallel()
-
-	tc, cookies := setupAPITest(t)
-
-	body := `{"name":"test-app","repoUrl":"https://github.com/example/repo"}`
-	rr := apiRequest(t, tc, cookies, http.MethodPost, "/api/v1/apps", body)
-	assert.Equal(t, http.StatusCreated, rr.Code)
-
-	var app map[string]any
-	require.NoError(t, json.Unmarshal(rr.Body.Bytes(), &app))
-	assert.Equal(t, "test-app", app["name"])
-	assert.Equal(t, "pending", app["status"])
-}
-
-func TestAPICreateAppValidation(t *testing.T) {
-	t.Parallel()
-
-	tc, cookies := setupAPITest(t)
-
-	body := `{"name":"","repoUrl":""}`
-	rr := apiRequest(t, tc, cookies, http.MethodPost, "/api/v1/apps", body)
-	assert.Equal(t, http.StatusBadRequest, rr.Code)
-}
-
 func TestAPIGetApp(t *testing.T) {
 	t.Parallel()
 
 	tc, cookies := setupAPITest(t)
 
-	body := `{"name":"my-app","repoUrl":"https://github.com/example/repo"}`
-	rr := apiRequest(t, tc, cookies, http.MethodPost, "/api/v1/apps", body)
-	require.Equal(t, http.StatusCreated, rr.Code)
+	created, err := tc.appSvc.CreateApp(t.Context(), app.CreateAppInput{
+		Name:    "my-app",
+		RepoURL: "https://github.com/example/repo",
+	})
+	require.NoError(t, err)
 
-	var created map[string]any
-	require.NoError(t, json.Unmarshal(rr.Body.Bytes(), &created))
-
-	appID, ok := created["id"].(string)
-	require.True(t, ok)
-
-	rr = apiRequest(t, tc, cookies, http.MethodGet, "/api/v1/apps/"+appID, "")
+	rr := apiGet(t, tc, cookies, "/api/v1/apps/"+created.ID)
 	assert.Equal(t, http.StatusOK, rr.Code)
 
-	var app map[string]any
-	require.NoError(t, json.Unmarshal(rr.Body.Bytes(), &app))
-	assert.Equal(t, "my-app", app["name"])
+	var resp map[string]any
+	require.NoError(t, json.Unmarshal(rr.Body.Bytes(), &resp))
+	assert.Equal(t, "my-app", resp["name"])
 }
 
 func TestAPIGetAppNotFound(t *testing.T) {
@@ -249,29 +212,7 @@ func TestAPIGetAppNotFound(t *testing.T) {
 
 	tc, cookies := setupAPITest(t)
 
-	rr := apiRequest(t, tc, cookies, http.MethodGet, "/api/v1/apps/nonexistent", "")
-	assert.Equal(t, http.StatusNotFound, rr.Code)
-}
-
-func TestAPIDeleteApp(t *testing.T) {
-	t.Parallel()
-
-	tc, cookies := setupAPITest(t)
-
-	body := `{"name":"delete-me","repoUrl":"https://github.com/example/repo"}`
-	rr := apiRequest(t, tc, cookies, http.MethodPost, "/api/v1/apps", body)
-	require.Equal(t, http.StatusCreated, rr.Code)
-
-	var created map[string]any
-	require.NoError(t, json.Unmarshal(rr.Body.Bytes(), &created))
-
-	appID, ok := created["id"].(string)
-	require.True(t, ok)
-
-	rr = apiRequest(t, tc, cookies, http.MethodDelete, "/api/v1/apps/"+appID, "")
-	assert.Equal(t, http.StatusOK, rr.Code)
-
-	rr = apiRequest(t, tc, cookies, http.MethodGet, "/api/v1/apps/"+appID, "")
+	rr := apiGet(t, tc, cookies, "/api/v1/apps/nonexistent")
 	assert.Equal(t, http.StatusNotFound, rr.Code)
 }
 
@@ -280,17 +221,13 @@ func TestAPIListDeployments(t *testing.T) {
 
 	tc, cookies := setupAPITest(t)
 
-	body := `{"name":"deploy-app","repoUrl":"https://github.com/example/repo"}`
-	rr := apiRequest(t, tc, cookies, http.MethodPost, "/api/v1/apps", body)
-	require.Equal(t, http.StatusCreated, rr.Code)
+	created, err := tc.appSvc.CreateApp(t.Context(), app.CreateAppInput{
+		Name:    "deploy-app",
+		RepoURL: "https://github.com/example/repo",
+	})
+	require.NoError(t, err)
 
-	var created map[string]any
-	require.NoError(t, json.Unmarshal(rr.Body.Bytes(), &created))
-
-	appID, ok := created["id"].(string)
-	require.True(t, ok)
-
-	rr = apiRequest(t, tc, cookies, http.MethodGet, "/api/v1/apps/"+appID+"/deployments", "")
+	rr := apiGet(t, tc, cookies, "/api/v1/apps/"+created.ID+"/deployments")
 	assert.Equal(t, http.StatusOK, rr.Code)
 
 	var deployments []any

internal/handlers/handlers_test.go

@@ -2,7 +2,6 @@ package handlers_test
 
 import (
 	"context"
-	"encoding/json"
 	"net/http"
 	"net/http/httptest"
 	"net/url"
@@ -843,33 +842,6 @@ func TestSetupRequiredExemptsHealthAndStaticAndAPI(t *testing.T) {
 	})
 }
 
-// TestAPITriggerDeployUsesDetachedContext verifies that HandleAPITriggerDeploy
-// does not pass the request context directly to the deploy operation.
-// This is a compile-time/code-level fix verified by the deployment not being
-// cancelled when the request context is cancelled.
-func TestAPITriggerDeployUsesDetachedContext(t *testing.T) {
-	t.Parallel()
-
-	// This test verifies the fix exists by checking the handler doesn't
-	// fail when called — the actual context detachment is verified by code review.
-	// The deploy will fail (no docker) but shouldn't panic.
-	tc, cookies := setupAPITest(t)
-
-	body := `{"name":"detach-ctx-app","repoUrl":"https://github.com/example/repo"}`
-	rr := apiRequest(t, tc, cookies, http.MethodPost, "/api/v1/apps", body)
-	require.Equal(t, http.StatusCreated, rr.Code)
-
-	var created map[string]any
-	require.NoError(t, json.Unmarshal(rr.Body.Bytes(), &created))
-
-	appID, ok := created["id"].(string)
-	require.True(t, ok)
-
-	rr = apiRequest(t, tc, cookies, http.MethodPost, "/api/v1/apps/"+appID+"/deploy", "")
-	// Should get conflict (deploy will fail) or accepted, but not panic
-	assert.Contains(t, []int{http.StatusAccepted, http.StatusConflict}, rr.Code)
-}
-
 func TestHandleCancelDeployRedirects(t *testing.T) {
 	t.Parallel()
 

internal/server/routes.go

@@ -114,10 +114,7 @@ func (s *Server) SetupRoutes() {
 			r.Get("/whoami", s.handlers.HandleAPIWhoAmI())
 
 			r.Get("/apps", s.handlers.HandleAPIListApps())
-			r.Post("/apps", s.handlers.HandleAPICreateApp())
 			r.Get("/apps/{id}", s.handlers.HandleAPIGetApp())
-			r.Delete("/apps/{id}", s.handlers.HandleAPIDeleteApp())
-			r.Post("/apps/{id}/deploy", s.handlers.HandleAPITriggerDeploy())
 			r.Get("/apps/{id}/deployments", s.handlers.HandleAPIListDeployments())
 		})
 	})