Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibWeb/HTML/CORSSettingAttribute.cpp

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2023, Srikavin Ramkumar <me@srikavin.me>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/HTML/CORSSettingAttribute.h>
+
+namespace Web::HTML {
+
+// https://html.spec.whatwg.org/multipage/urls-and-fetching.html#cors-settings-attributes
+CORSSettingAttribute cors_setting_attribute_from_keyword(Optional<String> const& keyword)
+{
+    if (!keyword.has_value()) {
+        // its missing value default is the No CORS state
+        return CORSSettingAttribute::NoCORS;
+    }
+    if (keyword->bytes_as_string_view().equals_ignoring_ascii_case("use-credentials"sv)) {
+        return CORSSettingAttribute::UseCredentials;
+    }
+
+    // The attribute's invalid value default is the Anonymous state
+    return CORSSettingAttribute::Anonymous;
+}
+
+// https://html.spec.whatwg.org/multipage/urls-and-fetching.html#cors-settings-attribute-credentials-mode
+Fetch::Infrastructure::Request::CredentialsMode cors_settings_attribute_credentials_mode(CORSSettingAttribute attribute)
+{
+    switch (attribute) {
+    // -> No CORS
+    // -> Anonymous
+    case CORSSettingAttribute::NoCORS:
+    case CORSSettingAttribute::Anonymous:
+        // "same-origin"
+        return Fetch::Infrastructure::Request::CredentialsMode::SameOrigin;
+
+    // -> Use Credentials
+    case CORSSettingAttribute::UseCredentials:
+        // "include"
+        return Fetch::Infrastructure::Request::CredentialsMode::Include;
+    }
+
+    VERIFY_NOT_REACHED();
+}
+
+}