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      1 /* -*-C++-*-	$NetBSD: file_http.h,v 1.6 2008/04/28 20:23:20 martin Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by UCHIYAMA Yasushi.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _HPCBOOT_FILE_HTTP_H_
     33 #define	_HPCBOOT_FILE_HTTP_H_
     34 
     35 #include <file.h>
     36 #include <winsock.h>
     37 
     38 class Socket {
     39 private:
     40 	struct sockaddr_in &_sockaddr;
     41 	SOCKET _socket;
     42 public:
     43 	explicit Socket(struct sockaddr_in &);
     44 	operator SOCKET() const { return _socket; }
     45 	virtual ~Socket(void);
     46 };
     47 
     48 class HttpFile : public File {
     49 public:
     50 	enum ops {
     51 		FILE_CACHE	= 0x00000001,
     52 		USE_PROXY	= 0x00000002		// XXX not yet.
     53 	};
     54 
     55 private:
     56 	// Wrapper for absorb Windows CE API difference.
     57 	int (*_wsa_startup)(WORD, LPWSADATA);
     58 	int (*_wsa_cleanup)(void);
     59 
     60 private:
     61 	// IP Socket
     62 	struct WSAData _winsock;
     63 	struct sockaddr_in _sockaddr;
     64 
     65 	enum { TMP_BUFFER_SIZE = 256 };
     66 
     67 	char _server_name[MAX_PATH];
     68 
     69 	// HTTP request
     70 	char _request[MAX_PATH];
     71 	const char *_req_get;
     72 	const char *_req_head;
     73 	const char *_req_host;
     74 	const char *_req_ua;
     75 
     76 	void _set_request(void);
     77 
     78 	// HTTP header.
     79 	size_t _header_size;
     80 	size_t _parse_header(size_t &);
     81 
     82 	// File buffer.
     83 	BOOL _memory_cache;
     84 	BOOL _cached;
     85 	char *_buffer;
     86 	size_t _buffer_size;
     87 	size_t _read_from_cache(void *, size_t, off_t);
     88 	size_t _recv_buffer(SOCKET, char *, size_t);
     89 	void _reset_state(void);
     90 	off_t _cur_pos;
     91 
     92 public:
     93 	HttpFile::HttpFile(Console *&);
     94 	virtual ~HttpFile(void);
     95 
     96 	BOOL setRoot(TCHAR *);
     97 	BOOL open(const TCHAR *, uint32_t);
     98 	size_t size(void) { size_t hsz; return _parse_header(hsz); }
     99 	BOOL close(void) { return TRUE; }
    100 	size_t read(void *, size_t, off_t = -1);
    101 	size_t write(const void *, size_t, off_t = -1) { return 0; }
    102 	BOOL seek(off_t);
    103 
    104 };
    105 
    106 #endif //_HPCBOOT_FILE_HTTP_H_
    107