/* -*-C++-*-    $NetBSD: file_http.h,v 1.6 2008/04/28 20:23:20 martin Exp $     */

/*-
 * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by UCHIYAMA Yasushi.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _HPCBOOT_FILE_HTTP_H_
#define _HPCBOOT_FILE_HTTP_H_

#include <file.h>
#include <winsock.h>

class Socket {
private:
        struct sockaddr_in &_sockaddr;
        SOCKET _socket;
public:
        explicit Socket(struct sockaddr_in &);
        operator SOCKET() const { return _socket; }
        virtual ~Socket(void);
};

class HttpFile : public File {
public:
        enum ops {
                FILE_CACHE      = 0x00000001,
                USE_PROXY       = 0x00000002            // XXX not yet.
        };

private:
        // Wrapper for absorb Windows CE API difference.
        int (*_wsa_startup)(WORD, LPWSADATA);
        int (*_wsa_cleanup)(void);

private:
        // IP Socket
        struct WSAData _winsock;
        struct sockaddr_in _sockaddr;

        enum { TMP_BUFFER_SIZE = 256 };

        char _server_name[MAX_PATH];

        // HTTP request
        char _request[MAX_PATH];
        const char *_req_get;
        const char *_req_head;
        const char *_req_host;
        const char *_req_ua;

        void _set_request(void);

        // HTTP header.
        size_t _header_size;
        size_t _parse_header(size_t &);

        // File buffer.
        BOOL _memory_cache;
        BOOL _cached;
        char *_buffer;
        size_t _buffer_size;
        size_t _read_from_cache(void *, size_t, off_t);
        size_t _recv_buffer(SOCKET, char *, size_t);
        void _reset_state(void);
        off_t _cur_pos;

public:
        HttpFile::HttpFile(Console *&);
        virtual ~HttpFile(void);

        BOOL setRoot(TCHAR *);
        BOOL open(const TCHAR *, uint32_t);
        size_t size(void) { size_t hsz; return _parse_header(hsz); }
        BOOL close(void) { return TRUE; }
        size_t read(void *, size_t, off_t = -1);
        size_t write(const void *, size_t, off_t = -1) { return 0; }
        BOOL seek(off_t);

};

#endif //_HPCBOOT_FILE_HTTP_H_