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发信人: jjk (UNIX+C+XML+?? 傻了?), 信区: Linux
标 题: micro_httpd---really small httpd guru (转寄)[转载]
发信站: 荔园晨风BBS站 (Thu Apr 25 10:25:45 2002), 转信
【 以下文字转载自 jjk 的信箱 】
【 原文由 jjk.bbs@apue.dhs.org 所发表 】
发信人: guru ( Darkness), 信区: unp
标 题: micro_httpd---really small httpd
发信站: UNIX编程 (2001年06月29日13:27:02 星期五), 站内信件
发信人: scz (小四), 信区: PUE WWW-POST
标 题: micro_httpd - really small HTTP server
发信站: 武汉白云黄鹤站 (Fri Jun 29 12:57:55 2001) , 转信
/* micro_httpd - really small HTTP server
**
** Copyright ?1999 by Jef Poskanzer <jef@acme.com>. All rights reserved.
**
** 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 AUTHOR 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 PURPOS
E
** ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIA
L
** 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, STRIC
T
** 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.
*/
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#define SERVER_NAME "micro_httpd"
#define SERVER_URL "http://www.acme.com/software/micro_httpd/"
#define PROTOCOL "HTTP/1.0"
#define RFC1123FMT "%a, %d %b %Y %H:%M:%S GMT"
/* Forwards. */
static void send_error( int status, char* title, char* extra_header, char* t
ext
);
static void send_headers( int status, char* title, char* extra_header, char*
mim
e_type, int length, time_t mod );
static char* get_mime_type( char* name );
int
main( int argc, char** argv )
{
char line[10000], method[10000], path[10000], protocol[10000], idx[20000
], l
ocation[20000], command[20000];
char* file;
int len, ich;
struct stat sb;
FILE* fp;
if ( argc != 2 )
send_error( 500, "Internal Error", (char*) 0, "Config error - no dir
spe
cified.
" );
if ( chdir( argv[1] ) < 0 )
send_error( 500, "Internal Error", (char*) 0, "Config error - couldn
't c
hdir().
" );
if ( fgets( line, sizeof(line), stdin ) == (char*) 0 )
send_error( 400, "Bad Request", (char*) 0, "No request found." );
if ( sscanf( line, "%[^ ] %[^ ] %[^ ]", method, path, protocol ) != 3 )
send_error( 400, "Bad Request", (char*) 0, "Can't parse request." );
while ( fgets( line, sizeof(line), stdin ) != (char*) 0 )
{
if ( strcmp( line, "\n" ) == 0 || strcmp( line, "\r\n" ) == 0 )
break;
}
if ( strcasecmp( method, "get" ) != 0 )
send_error( 501, "Not Implemented", (char*) 0, "That method is not i
mple
mented.
" );
if ( path[0] != '/' )
send_error( 400, "Bad Request", (char*) 0, "Bad filename." );
file = &(path[1]);
if ( file[0] == '\0' )
file = "./";
len = strlen( file );
if ( file[0] == '/' || strcmp( file, ".." ) == 0 || strncmp( file, "../"
, 3
) == 0 || strstr( file, "/../" ) != (char*) 0 || strcmp( &(file[len-3]), "/.
." )
== 0 )
send_error( 400, "Bad Request", (char*) 0, "Illegal filename." );
if ( stat( file, &sb ) < 0 )
send_error( 404, "Not Found", (char*) 0, "File not found." );
if ( S_ISDIR( sb.st_mode ) )
{
if ( file[len-1] != '/' )
{
(void) snprintf(
location, sizeof(location), "Location: %s/", path );
send_error( 302, "Found", location, "Directories must end with a
sla
sh." );
}
(void) snprintf( idx, sizeof(idx), "%sindex.html", file );
if ( stat( idx, &sb ) >= 0 )
{
file = idx;
goto do_file;
}
send_headers( 200, "Ok", (char*) 0, "text/html", -1, sb.st_mtime );
(void) printf( "<HTML><HEAD><TITLE>Index of %s</TITLE></HEAD>\n<BODY
BGC
OLOR=\"
#99cc99\"><H4>Index of %s</H4>\n<PRE>\n", file, file );
if ( strchr( file, '\'' ) == (char*) 0 )
{
(void) snprintf( command, sizeof(command),
"ls -lgF '%s' | tail +2 | sed -e 's/^\\([^ ][^ ]*\\)\\( *[^
][^
]* *[^ ][^ ]
* *[^ ][^ ]*\\)\\( *[^ ][^ ]*\\) *\\([^ ][^ ]* *[^ ][^ ]* *[^ ][^ ]*\\)
*\
\(.*\\)$/\\1 \\3 \\4 |\\5/' -e '/ -> /!s,|\\([^*]*\\)$,|<A HREF=\"\\1\">\\
1</A
>,' -e '/ -> /!s,|\\(.*\\)\\([*]\\)$,|<A HREF=\"\\1\">\\1</A>\\2,' -e '/ ->
/s,|
\\([^@]*\\)\\(@* -> \\),|<A HREF=\"\\1\">\\1</A>\\2,' -e 's/|//'",
file );
(void) fflush( stdout );
system( command );
}
(void) printf( "</PRE>\n<HR>\n<ADDRESS><A HREF=\"%s\">%s</A></ADDRES
S>\n
</BODY>
</HTML>\n", SERVER_URL, SERVER_NAME );
}
else
{
do_file:
fp = fopen( file, "r" );
if ( fp == (FILE*) 0 )
send_error( 403, "Forbidden", (char*) 0, "File is protected." );
send_headers( 200, "Ok", (char*) 0, get_mime_type( file ), sb.st_siz
e, s
b.st_mt
ime );
while ( ( ich = getc( fp ) ) != EOF )
putchar( ich );
}
(void) fflush( stdout );
exit( 0 );
}
static void
send_error( int status, char* title, char* extra_header, char* text )
{
send_headers( status, title, extra_header, "text/html", -1, -1 );
(void) printf( "<HTML><HEAD><TITLE>%d %s</TITLE></HEAD>\n<BODY BGCOLOR=\
"#cc
9999\"><H4>%d %s</H4>\n", status, title, status, title );
(void) printf( "%s\n", text );
(void) printf( "<HR>\n<ADDRESS><A HREF=\"%s\">%s</A></ADDRESS>\n</BODY><
/HTM
L>\n", SERVER_URL, SERVER_NAME );
(void) fflush( stdout );
exit( 1 );
}
static void
send_headers( int status, char* title, char* extra_header, char* mime_type,
int
length, time_t mod )
{
time_t now;
char timebuf[100];
(void) printf( "%s %d %s\r\n", PROTOCOL, status, title );
(void) printf( "Server: %s\r\n", SERVER_NAME );
now = time( (time_t*) 0 );
(void) strftime( timebuf, sizeof(timebuf), RFC1123FMT, gmtime( &now ) );
(void) printf( "Date: %s\r\n", timebuf );
if ( extra_header != (char*) 0 )
(void) printf( "%s\r\n", extra_header );
if ( mime_type != (char*) 0 )
(void) printf( "Content-Type: %s\r\n", mime_type );
if ( length >= 0 )
(void) printf( "Content-Length: %d\r\n", length );
if ( mod != (time_t) -1 )
{
(void) strftime( timebuf, sizeof(timebuf), RFC1123FMT, gmtime( &mod
) );
(void) printf( "Last-Modified: %s\r\n", timebuf );
}
(void) printf( "Connection: close\r\n" );
(void) printf( "\r\n" );
}
static char* get_mime_type( char* name )
{
char* dot;
dot = strrchr( name, '.' );
if ( dot == (char*) 0 )
return "text/plain; charset=iso-8859-1";
if ( strcmp( dot, ".html" ) == 0 || strcmp( dot, ".htm" ) == 0 )
return "text/html; charset=iso-8859-1";
if ( strcmp( dot, ".jpg" ) == 0 || strcmp( dot, ".jpeg" ) == 0 )
return "image/jpeg";
if ( strcmp( dot, ".gif" ) == 0 )
return "image/gif";
if ( strcmp( dot, ".png" ) == 0 )
return "image/png";
if ( strcmp( dot, ".css" ) == 0 )
return "text/css";
if ( strcmp( dot, ".au" ) == 0 )
return "audio/basic";
if ( strcmp( dot, ".wav" ) == 0 )
return "audio/wav";
if ( strcmp( dot, ".avi" ) == 0 )
return "video/x-msvideo";
if ( strcmp( dot, ".mov" ) == 0 || strcmp( dot, ".qt" ) == 0 )
return "video/quicktime";
if ( strcmp( dot, ".mpeg" ) == 0 || strcmp( dot, ".mpe" ) == 0 )
return "video/mpeg";
if ( strcmp( dot, ".vrml" ) == 0 || strcmp( dot, ".wrl" ) == 0 )
return "model/vrml";
if ( strcmp( dot, ".midi" ) == 0 || strcmp( dot, ".mid" ) == 0 )
return "audio/midi";
if ( strcmp( dot, ".mp3" ) == 0 )
return "audio/mpeg";
if ( strcmp( dot, ".pac" ) == 0 )
return "application/x-ns-proxy-autoconfig";
return "text/plain; charset=iso-8859-1";
}
--
也许有一天，他再从海上蓬蓬的雨点中升起，
飞向西来，再形成一道江流，再冲倒两旁的石壁，
再来寻夹岸的桃花。然而，我不敢说来生，也不敢信来生......
--
※ 来源:·UNIX编程 www.tiaozhan.com/unixbbs/·[FROM: 202.114.36.239] --
※ 转寄:·UNIX编程 apue.dhs.org·[FROM: 210.39.3.50]
--
※ 转载:·荔园晨风BBS站 bbs.szu.edu.cn·[FROM: 192.168.0.146]
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