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/LibHTTP/HeaderMap.h

@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2024, Andreas Kling <andreas@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibHTTP/Header.h>
+
+namespace HTTP {
+
+class HeaderMap {
+public:
+    HeaderMap() = default;
+    ~HeaderMap() = default;
+
+    void set(ByteString name, ByteString value)
+    {
+        m_map.set(name, value);
+        m_headers.append({ move(name), move(value) });
+    }
+
+    [[nodiscard]] bool contains(ByteString const& name) const
+    {
+        return m_map.contains(name);
+    }
+
+    [[nodiscard]] Optional<ByteString> get(ByteString const& name) const
+    {
+        return m_map.get(name);
+    }
+
+    [[nodiscard]] Vector<Header> const& headers() const
+    {
+        return m_headers;
+    }
+
+private:
+    HashMap<ByteString, ByteString, CaseInsensitiveStringTraits> m_map;
+    Vector<Header> m_headers;
+};
+
+}
+
+namespace IPC {
+
+template<>
+inline ErrorOr<void> encode(Encoder& encoder, HTTP::HeaderMap const& header_map)
+{
+    TRY(encoder.encode(header_map.headers()));
+    return {};
+}
+
+template<>
+inline ErrorOr<HTTP::HeaderMap> decode(Decoder& decoder)
+{
+    auto headers = TRY(decoder.decode<Vector<HTTP::Header>>());
+    HTTP::HeaderMap header_map;
+    for (auto& header : headers)
+        header_map.set(move(header.name), move(header.value));
+    return header_map;
+}
+
+}