Set all cookies with sameSite: strict

Modern browsers do not support (or will stop supporting) sameSite: none (or no sameSite attribute) without the Secure flag. As we don't want everyone to be able to make requests with our cookies anyway, this commit sets sameSite to strict. See https://developer.mozilla.org/de/docs/Web/HTTP/Headers/Set-Cookie/SameSite

Signed-off-by: David Mehren <dmehren1@gmail.com>

app.js

@@ -139,7 +139,8 @@ app.use(session({
   saveUninitialized: true, // always create session to ensure the origin
   rolling: true, // reset maxAge on every response
   cookie: {
-    maxAge: config.sessionLife
+    maxAge: config.sessionLife,
+    sameSite: 'strict'
   },
   store: sessionStore
 }))

public/js/index.js

@@ -1596,7 +1596,8 @@ function toggleNightMode () {
     store.set('nightMode', !isActive)
   } else {
     Cookies.set('nightMode', !isActive, {
-      expires: 365
+      expires: 365,
+      sameSite: 'strict'
     })
   }
 }

public/js/lib/common/login.js

@@ -19,11 +19,13 @@ export function resetCheckAuth () {
 
 export function setLoginState (bool, id) {
   Cookies.set('loginstate', bool, {
-    expires: 365
+    expires: 365,
+    sameSite: 'strict'
   })
   if (id) {
     Cookies.set('userid', id, {
-      expires: 365
+      expires: 365,
+      sameSite: 'strict'
     })
   } else {
     Cookies.remove('userid')

public/js/lib/editor/index.js

@@ -303,12 +303,14 @@ export default class Editor {
     const setType = () => {
       if (this.editor.getOption('indentWithTabs')) {
         Cookies.set('indent_type', 'tab', {
-          expires: 365
+          expires: 365,
+          sameSite: 'strict'
         })
         type.text('Tab Size:')
       } else {
         Cookies.set('indent_type', 'space', {
-          expires: 365
+          expires: 365,
+          sameSite: 'strict'
         })
         type.text('Spaces:')
       }
@@ -319,11 +321,13 @@ export default class Editor {
       var unit = this.editor.getOption('indentUnit')
       if (this.editor.getOption('indentWithTabs')) {
         Cookies.set('tab_size', unit, {
-          expires: 365
+          expires: 365,
+          sameSite: 'strict'
         })
       } else {
         Cookies.set('space_units', unit, {
-          expires: 365
+          expires: 365,
+          sameSite: 'strict'
         })
       }
       widthLabel.text(unit)
@@ -391,7 +395,8 @@ export default class Editor {
     const setKeymapLabel = () => {
       var keymap = this.editor.getOption('keyMap')
       Cookies.set('keymap', keymap, {
-        expires: 365
+        expires: 365,
+        sameSite: 'strict'
       })
       label.text(keymap)
       this.restoreOverrideEditorKeymap()
@@ -439,7 +444,8 @@ export default class Editor {
       }
       this.editor.setOption('theme', theme)
       Cookies.set('theme', theme, {
-        expires: 365
+        expires: 365,
+        sameSite: 'strict'
       })
 
       checkTheme()
@@ -484,7 +490,8 @@ export default class Editor {
         this.editor.setOption('mode', mode)
       }
       Cookies.set('spellcheck', mode === 'spell-checker', {
-        expires: 365
+        expires: 365,
+        sameSite: 'strict'
       })
 
       checkSpellcheck()
@@ -529,7 +536,8 @@ export default class Editor {
     )
     if (overrideBrowserKeymap.is(':checked')) {
       Cookies.set('preferences-override-browser-keymap', true, {
-        expires: 365
+        expires: 365,
+        sameSite: 'strict'
       })
       this.restoreOverrideEditorKeymap()
     } else {

public/js/locale.js

@@ -25,7 +25,8 @@ $('select.ui-locale option[value="' + lang + '"]').attr('selected', 'selected')
 
 locale.change(function () {
   Cookies.set('locale', $(this).val(), {
-    expires: 365
+    expires: 365,
+    sameSite: 'strict'
   })
   window.location.reload()
 })