Move user cookies to their own module

src/invidious/user/cookies.cr

@@ -0,0 +1,37 @@
+require "http/cookie"
+
+struct Invidious::User
+  module Cookies
+    extend self
+
+    # Note: we use ternary operator because the two variables
+    # used in here are not booleans.
+    SECURE = (Kemal.config.ssl || CONFIG.https_only) ? true : false
+
+    # Session ID (SID) cookie
+    # Parameter "domain" comes from the global config
+    def sid(domain : String?, sid) : HTTP::Cookie
+      return HTTP::Cookie.new(
+        name: "SID",
+        domain: domain,
+        value: sid,
+        expires: Time.utc + 2.years,
+        secure: SECURE,
+        http_only: true
+      )
+    end
+
+    # Preferences (PREFS) cookie
+    # Parameter "domain" comes from the global config
+    def prefs(domain : String?, preferences : Preferences) : HTTP::Cookie
+      return HTTP::Cookie.new(
+        name: "PREFS",
+        domain: domain,
+        value: URI.encode_www_form(preferences.to_json),
+        expires: Time.utc + 2.years,
+        secure: SECURE,
+        http_only: true
+      )
+    end
+  end
+end