Add scaffolding for duckdb-wasm's HTTP stack

Author: carlopi

lib/CMakeLists.txt

@@ -217,6 +217,7 @@ add_library(
   ${CMAKE_SOURCE_DIR}/src/arrow_casts.cc
   ${CMAKE_SOURCE_DIR}/src/arrow_insert_options.cc
   ${CMAKE_SOURCE_DIR}/src/arrow_stream_buffer.cc
+  ${CMAKE_SOURCE_DIR}/src/http_wasm.cc
   ${CMAKE_SOURCE_DIR}/src/arrow_type_mapping.cc
   ${CMAKE_SOURCE_DIR}/src/config.cc
   ${CMAKE_SOURCE_DIR}/src/csv_insert_options.cc

lib/include/duckdb/web/http_wasm.h

@@ -0,0 +1,44 @@
+#include "duckdb/common/http_util.hpp"
+
+namespace duckdb {
+
+class HTTPLogger;
+class FileOpener;
+struct FileOpenerInfo;
+class HTTPState;
+
+struct HTTPFSParams : public HTTPParams {
+        HTTPFSParams(HTTPUtil &http_util) : HTTPParams(http_util) {
+        }
+
+        static constexpr bool DEFAULT_ENABLE_SERVER_CERT_VERIFICATION = false;
+        static constexpr uint64_t DEFAULT_HF_MAX_PER_PAGE = 0;
+        static constexpr bool DEFAULT_FORCE_DOWNLOAD = false;
+
+        bool force_download = DEFAULT_FORCE_DOWNLOAD;
+        bool enable_server_cert_verification = DEFAULT_ENABLE_SERVER_CERT_VERIFICATION;
+        idx_t hf_max_per_page = DEFAULT_HF_MAX_PER_PAGE;
+        string ca_cert_file;
+        string bearer_token;
+        shared_ptr<HTTPState> state;
+};
+
+class HTTPWasmUtil : public HTTPUtil {
+public:
+        unique_ptr<HTTPParams> InitializeParameters(optional_ptr<FileOpener> opener,
+                                                    optional_ptr<FileOpenerInfo> info) override {
+		std::cout << "InitializeParameters\n";
+		return make_uniq<HTTPFSParams>(*this);
+	}
+        unique_ptr<HTTPClient> InitializeClient(HTTPParams &http_params, const string &proto_host_port) override;
+
+        //static unordered_map<string, string> ParseGetParameters(const string &text);
+
+        string GetName() const override;
+};
+
+
+
+
+} // namespace duckdb
+