refactor: serve timeout static content using Go

api/adminmonitor/admin_monitor.go

@@ -2,7 +2,11 @@ package adminmonitor
 
 import (
 	"context"
+	"embed"
+	"io/fs"
 	"log"
+	"net/http"
+	"strings"
 	"sync"
 	"time"
 
@@ -12,20 +16,25 @@ import (
 
 var logFatalf = log.Fatalf
 
+const RedirectReasonAdminInitTimeout string = "AdminInitTimeout"
+
 type Monitor struct {
-	timeout          time.Duration
-	datastore        dataservices.DataStore
-	shutdownCtx      context.Context
-	cancellationFunc context.CancelFunc
-	mu               sync.Mutex
+	timeout           time.Duration
+	datastore         dataservices.DataStore
+	shutdownCtx       context.Context
+	cancellationFunc  context.CancelFunc
+	mu                sync.Mutex
+	adminInitDisabled bool
 }
 
-// New creates a monitor that when started will wait for the timeout duration and then shutdown the application unless it has been initialized.
+// New creates a monitor that when started will wait for an admin account being created for timeout duration
+// if and admin account would still be missing, it'll disable the http traffic handling
 func New(timeout time.Duration, datastore dataservices.DataStore, shutdownCtx context.Context) *Monitor {
 	return &Monitor{
-		timeout:     timeout,
-		datastore:   datastore,
-		shutdownCtx: shutdownCtx,
+		timeout:           timeout,
+		datastore:         datastore,
+		shutdownCtx:       shutdownCtx,
+		adminInitDisabled: false,
 	}
 }
 
@@ -50,7 +59,11 @@ func (m *Monitor) Start() {
 				logFatalf("%s", err)
 			}
 			if !initialized {
-				logFatalf("[FATAL] [internal,init] No administrator account was created in %f mins. Shutting down the Portainer instance for security reasons", m.timeout.Minutes())
+				log.Println("[INFO] [internal,init] The Portainer instance timed out for security purposes. To re-enable your Portainer instance, you will need to restart Portainer")
+				m.mu.Lock()
+				defer m.mu.Unlock()
+				m.adminInitDisabled = true
+				return
 			}
 		case <-cancellationCtx.Done():
 			log.Println("[DEBUG] [internal,init] [message: canceling initialization monitor]")
@@ -80,3 +93,35 @@ func (m *Monitor) WasInitialized() (bool, error) {
 	}
 	return len(users) > 0, nil
 }
+
+func (m *Monitor) WasInstanceDisabled() bool {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	return m.adminInitDisabled
+}
+
+//go:embed timeout
+var timeoutFiles embed.FS
+
+// WithRedirect checks whether administrator initialisation timeout. If so, it will return the error with redirect reason.
+// Otherwise, it will pass through the request to next
+func (m *Monitor) WithRedirect(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if m.WasInstanceDisabled() {
+			if r.RequestURI == `/` || strings.HasPrefix(r.RequestURI, "/api") {
+				w.Header().Set("redirect-reason", `Administrator initialization timeout`)
+				http.Redirect(w, r, `/timeout.html`, http.StatusSeeOther)
+				return
+			}
+
+			files, err := fs.Sub(timeoutFiles, "timeout")
+			if err != nil {
+				log.Printf("Error %s\n", err)
+			}
+			http.FileServer(http.FS(files)).ServeHTTP(w, r)
+			return
+		}
+
+		next.ServeHTTP(w, r)
+	})
+}

api/adminmonitor/admin_monitor_test.go

@@ -42,28 +42,13 @@ func Test_canStopStartedMonitor(t *testing.T) {
 	assert.Nil(t, monitor.cancellationFunc, "cancellation function should absent in stopped monitor")
 }
 
-func Test_start_shouldFatalAfterTimeout_ifNotInitialized(t *testing.T) {
+func Test_start_shouldDisableInstanceAfterTimeout_ifNotInitialized(t *testing.T) {
 	timeout := 10 * time.Millisecond
 
 	datastore := i.NewDatastore(i.WithUsers([]portainer.User{}))
-
-	ch := make(chan struct{})
-	var fataled bool
-	origLogFatalf := logFatalf
-
-	logFatalf = func(s string, v ...interface{}) {
-		fataled = true
-		close(ch)
-	}
-
-	defer func() {
-		logFatalf = origLogFatalf
-	}()
-
 	monitor := New(timeout, datastore, context.Background())
 	monitor.Start()
-	<-time.After(2 * timeout)
-	<-ch
 
-	assert.True(t, fataled, "monitor should been timeout and fatal")
+	<-time.After(20 * timeout)
+	assert.True(t, monitor.WasInstanceDisabled(), "monitor should have been timeout and instance is disabled")
 }

api/adminmonitor/timeout/assets/ico/safari-pinned-tab.svg

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api/adminmonitor/timeout/assets/images/logo_alt.svg

@@ -0,0 +1,60 @@
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+	<path class="st0" d="M57.6,210.7c2.9-12.3,14-21.5,27.2-21.5c8.5,0,16.1,3.8,21.3,9.8c4.5-3.1,9.9-4.9,15.8-4.9
+		c15.4,0,27.9,12.5,27.9,27.9c0,3.2-0.5,6.2-1.5,9.1c3.4,4.6,5.5,10.4,5.5,16.6c0,15.4-12.5,27.9-27.9,27.9c-6.8,0-13-2.4-17.8-6.4
+		c-5.1,7.1-13.4,11.8-22.8,11.8c-10.8,0-20.2-6.2-24.9-15.2c-1.9,0.4-3.8,0.6-5.8,0.6c-15.4,0-28-12.5-28-27.9s12.5-27.9,28-27.9
+		C55.6,210.5,56.6,210.5,57.6,210.7L57.6,210.7z"/>
+</g>
+</svg>

api/adminmonitor/timeout/timeout.html

@@ -0,0 +1,59 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <title>Portainer</title>
+    <meta name="description" content="" />
+    <base id="base" />
+
+    <!-- Fav and touch icons -->
+    <link rel="apple-touch-icon" sizes="180x180" href="./assets/ico/apple-touch-icon.png" />
+    <link rel="icon" type="image/png" sizes="32x32" href="./assets/ico/favicon-32x32.png" />
+    <link rel="icon" type="image/png" sizes="16x16" href="./assets/ico/favicon-16x16.png" />
+    <link rel="mask-icon" href="./assets/ico/safari-pinned-tab.svg" color="#5b" />
+    <link rel="shortcut icon" href="./assets/ico/favicon.ico" />
+    <meta name="msapplication-config" content="./assets/ico/browserconfig.xml" />
+    <meta name="theme-color" content="#ffffff" />
+  </head>
+
+  <body>
+    <div class="page-wrapper">
+      <!-- timeout info box -->
+      <div class="container simple-box">
+        <div class="col-md-8 col-md-offset-2 col-sm-10 col-sm-offset-1">
+          <!-- simple box logo -->
+          <div class="row">
+            <img src="./assets/images/logo_alt.svg" class="simple-box-logo" alt="Portainer" />
+          </div>
+
+          <div class="panel panel-default">
+            <div class="panel-body">
+              <!-- toggle -->
+              <div style="padding-bottom: 24px">
+                <a>
+                  <span style="padding-left: 10px">New Portainer installation</span>
+                </a>
+              </div>
+
+              <!-- init admin init timeout notification -->
+              <div class="simple-box" style="padding-left: 30px">
+                <div class="col-sm-12">
+                  <span class="small text-muted" style="margin-left: 2px">
+                    Your Portainer instance timed out for security purposes. To re-enable your Portainer instance, you will need to restart Portainer.
+                  </span>
+                  <br /><br />
+                  <span class="text-muted small" style="margin-left: 2px">
+                    For further information, view our <a href="https://docs.portainer.io/v/ce-2.11/start/install" target="_blank">documentation</a>.
+                  </span>
+                </div>
+              </div>
+              <!-- !init admin init timeout notification -->
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <!-- !timeout info box -->
+    </div>
+  </body>
+</html>

api/http/server.go

@@ -300,8 +300,7 @@ func (server *Server) Start() error {
 		WebhookHandler:         webhookHandler,
 	}
 
-	handler := offlineGate.WaitingMiddleware(time.Minute, server.Handler)
-
+	handler := adminMonitor.WithRedirect(offlineGate.WaitingMiddleware(time.Minute, server.Handler))
 	if server.HTTPEnabled {
 		go func() {
 			log.Printf("[INFO] [http,server] [message: starting HTTP server on port %s]", server.BindAddress)

app/config.js

@@ -15,6 +15,7 @@ export function configApp($urlRouterProvider, $httpProvider, localStorageService
       return LocalStorage.getJWT();
     },
   });
+
   $httpProvider.interceptors.push('jwtInterceptor');
   $httpProvider.interceptors.push('EndpointStatusInterceptor');
   $httpProvider.defaults.headers.post['Content-Type'] = 'application/json';

app/constants.js

@@ -33,6 +33,7 @@ export const STACK_NAME_VALIDATION_REGEX = '^[-_a-z0-9]+$';
 export const TEMPLATE_NAME_VALIDATION_REGEX = '^[-_a-z0-9]+$';
 export const BROWSER_OS_PLATFORM = navigator.userAgent.indexOf('Windows NT') > -1 ? 'win' : 'lin';
 export const NEW_LINE_BREAKER = BROWSER_OS_PLATFORM === 'win' ? '\r\n' : '\n';
+export const REDIRECT_REASON_TIMEOUT = 'AdminInitTimeout';
 
 // don't declare new constants, either:
 // - if only used in one file or module, declare in that file or module (as a regular js constant)
@@ -66,4 +67,5 @@ angular
   .constant('PAGINATION_MAX_ITEMS', PAGINATION_MAX_ITEMS)
   .constant('APPLICATION_CACHE_VALIDITY', APPLICATION_CACHE_VALIDITY)
   .constant('CONSOLE_COMMANDS_LABEL_PREFIX', CONSOLE_COMMANDS_LABEL_PREFIX)
-  .constant('PREDEFINED_NETWORKS', PREDEFINED_NETWORKS);
+  .constant('PREDEFINED_NETWORKS', PREDEFINED_NETWORKS)
+  .constant('REDIRECT_REASON_TIMEOUT', REDIRECT_REASON_TIMEOUT);

app/portainer/services/axios.ts

@@ -1,7 +1,7 @@
 import axiosOrigin, { AxiosError, AxiosRequestConfig } from 'axios';
 import { loadProgressBar } from 'axios-progress-bar';
-import 'axios-progress-bar/dist/nprogress.css';
 
+import 'axios-progress-bar/dist/nprogress.css';
 import PortainerError from '@/portainer/error';
 import { get as localStorageGet } from '@/portainer/hooks/useLocalStorage';