Feat: add remember password ability

src/connection-storage.js

@@ -0,0 +1,52 @@
+/* eslint-env browser */
+
+const CONNECTION_COOKIE_NAME = 'obsConnection'
+const CONNECTION_COOKIE_MAX_AGE = 60 * 60 * 24 * 30 // 30 days
+
+function encodeConnection (data) {
+  try {
+    const json = JSON.stringify(data)
+    // Note: this is simple base64 encoding, not strong encryption.
+    // It prevents casual snooping of the cookie contents but does
+    // not protect against a determined attacker with access to this origin.
+    return btoa(json)
+  } catch (e) {
+    console.warn('Failed to encode connection cookie', e)
+    return ''
+  }
+}
+
+function decodeConnection (value) {
+  if (!value) return null
+  try {
+    const json = atob(value)
+    return JSON.parse(json)
+  } catch (e) {
+    console.warn('Failed to decode connection cookie', e)
+    return null
+  }
+}
+
+export function setConnectionCookie (connection) {
+  if (!connection) {
+    document.cookie = `${CONNECTION_COOKIE_NAME}=; Max-Age=0; path=/; SameSite=Lax`
+    return
+  }
+  const encoded = encodeConnection(connection)
+  if (!encoded) return
+  let cookie = `${CONNECTION_COOKIE_NAME}=${encoded}; Max-Age=${CONNECTION_COOKIE_MAX_AGE}; path=/; SameSite=Lax`
+  if (location.protocol === 'https:') {
+    cookie += '; Secure'
+  }
+  document.cookie = cookie
+}
+
+export function getConnectionCookie () {
+  const cookies = document.cookie ? document.cookie.split('; ') : []
+  const found = cookies.find((c) => c.startsWith(`${CONNECTION_COOKIE_NAME}=`))
+  if (!found) return null
+  const value = found.split('=').slice(1).join('=')
+  return decodeConnection(value)
+}
+
+