// a SimpleSt Web Server // Written by Shen Zhiliang for Learning Winsock & http file: //zhiliang@sina.com
#include "winsock.h"
#include "stdio.h"
#include "conoe.h"
#include "io.h"
#define buflen 2048
#define defpath ("C: // FrontPage Webs // Content //")
#define defding ("index.htm")
#define httphead ("HTTP / 1.0 200 OK / 010DATE: MONDAY,
04-JAN-99 17:06:17 GMT / X0aserver: http-server / 1.0 / x0a
MIME-VERSION: 1.0 / X0A ")
#define mimehtml ("Content-Type: Text / HTML / X0A
Last-Modified: Friday, 26-Sep-97 09:36:54 GMT / X0A ")
#define mimegif ("Content-Type: / Image / GIF / X0A
Last-Modified: Friday, 26-Sep-97 09:36:54 GMT / X0A ")
#define mimejpeg ("Content-Type: / Image / JPEG / X0A
Last-Modified: Friday, 26-Sep-97 09:36:54 GMT / X0A ")
#define mimepain ("Content-Type: Text / Pain / X0A
Last-Modified: Friday, 26-Sep-97 09:36:54 GMT / X0A ")
#define htmlhead ("
/ x0a)#define htmltail ("/ n ")
Void P (char * a)
{
Printf ("Error IN:% S / N", A);
}
/ *
Char * httphead (file * fp)
{
StructTM * newtime;
Time_t ACLOCK;
Time (& ACLOCK);
NEWTIME = LocalTime (& Aclk);
Printf ("THE CURRENT DATE AND TIME ARE:% S",
asctime (newtime);
}
* /
Void HTMLERROR (Socket S, Unsigned Int Code, Char * MSG)
{
CHAR TMP [1024];
Sprintf (TMP, "ERROR CODE:% D% S", CODE, MSG);
Send (S, Httphead, Strlen (httphead), 0);
Send (S, Htmlhead, Strlen (Htmlhead), 0);
Send (S, TMP, Strlen (TMP), 0);
Send (S, HTMLTAIL, STRLEN (HTMLTAIL), 0);
}
Void SendhtmlFile (socket S, Char * filename)
{
File * fp;
Char * TMP;
Char fullname [512];
Char BUF [1024];
INT I;
STRCPY (Fullname, Defpath);
IF (Strlen) == 0 || (FileName) == 1 && FileName [0] == '/'))
STRCAT (Fullname, Deffile);
Else
{
Do {
TMP = Strchr (filename, '/');
IF (TMP! = NULL)
TMP [0] = '//';
} while (tmp! = null);
IF (filename [0] == '//')
STRCAT (Fullname, & FileName ";
Else
STRCAT (Fullname, FileName);
}
File * fpt = fopen ("recv.dat", "a b");
Fwrite (Fullname, Sizeof (Char), Strlen (Fullname), FPT);
Fclose (FPT);
FP = fopen (Fullname, "RB");
IF (fp == null)
{
Char msg [512];
IF (filename [0] == '//')
Filename [0] = '/';
Sprintf (MSG, "URI NO FOUND:% S", FileName);
HTMLERROR (S, 404, MSG);
Return;
}
Send (S, Httphead, Strlen (httphead), 0);
IF (StriLename [Strlen (FileName) -4], ". GIF") == 0)
Send (S, MIMEGIF, STRLEN (MIMEGIF), 0);
ELSE IF (& FileName [Strlen (FileName) -4], "JPG") == 0 || /
Stricmp (& FileName [Strlen (FileName) -5], ". JPEG") == 0)
Send (S, MIMEJPEG, STRLEN (MIMEJPEG), 0);
ELSE IF (& FileName [Strlen (FileName) -4], ". htm") == 0 || /
Stricmp (& FileName [Strlen (FileName) -5], "HTML") == 0)
{
Send (S, MIMEHTML, STRLEN (MIMEHTML), 0);
}
Long fs = _fileLength (_fileno (fp));
BUF [0] = 0;
Sprintf (BUF, "Content-Length:% LD / X0A / X0A", FS);
Send (S, BUF, STRLEN (BUF), 0);
For (i = 0;! feof (fp); i )
{
BUF [I] = FGETC (FP);
IF (i> = 1023 || Feof (fp))
{
Send (S, BUF, I, 0);
i = 0;
}
}
Fclose (fp);
}
Void socketError (Char * Call)
{
FPRINTF (stderr, "Winsock Error # function:% s, error code:% ld / n", call, wsagetlasterror ());
}
Main (int Argc, char ** argv)
{
INT IRES, IPORT, ITMP;
Socket S, RS;
SockAddr_in sin, rsin;
Wsadata WSAD;
Word WVersionReq;
Char recvbuf [buflen];
IF (Argc <2)
{
FPRINTF (stderr, "usage: Webserver 999 / N / T999 - Port
Number for this server. ");
Return -1;
}
iPort = 0;
Iport = atoi (Argv [1]);
IF (iPort <= 0)
{
FPRINTF (stderr, "must specify a port number);
Return -1;
}
WversionReq = makeword (1, 1);
Ires = WSAStartup (WVersionReq, & WSAD);
IF (IRES! = 0)
{
"" "WSAStartup ()");
Return -1;
}
S = Socket (PF_INET, SOCK_STREAM, 0);
IF (s == invalid_socket)
{
SocketError ("socket ()");
Return -1;
}
Sin.sin_family = pf_inet;
Sin.sin_port = HTONS (iPort);
Sin.sin_addr.s_addr = incdr_any;
ITMP = SIZEOF (SIN);
IF (Bind (s, (lpsockaddr) & sin, itmp) == Socket_ERROR)
{
SocketError ("Bind ()");
CloseSocket (s);
WSACLEANUP ();
Return -1;
}
IF (Listen (S, 1) == Socket_ERROR)
{
SocketError ("Listen ()");
CloseSocket (s);
WSACLEANUP ();
Return -1;
}
FPrintf (stderr, "webserver running ... / n");
ITMP = SizeOf (RSIN);
RS = 0;
While (1)
{
IF (_kbhit ()! = 0)
{
IF (_Getch ()! = 27)
Break;
IF (rc! = 0)
CloseSocket (RS);
CloseSocket (s);
WSACLEANUP ();
FPRINTF (stderr, "webserver stopped ... / n");
Return 0;
}
RS = Accept (S, LPSOCKADDR) & rsin, & itmp);
IF (RS == Invalid_socket)
{
SocketError ("accept ()");
CloseSocket (s);
WSACLEANUP ();
Return -1;
}
Ires = RECV (RS, Recvbuf, Bufflen, 0);
Printf ("Received Data: / N -------------------------------- / N% S / N --- ---------------------------- / n ", Recvbuf;
IF (Ires == Socket_ERROR)
{
SocketError ("RECV ()");
CloseSocket (RS);
CloseSocket (s);
WSACLEANUP ();
Return -1;
}
Char * SRES;
Sres = strstr (Recvbuf, "Get");
IF (SRES! = NULL && (SRES-Recvbuf) <3)
SRES = strchr (Recvbuf, '/');
IF (SRES! = NULL)
{
Char * SRES1;
Sres1 = strchr (SRES, '/ R');
IF (STRCHR (SRES, '') Sres1 = strchr (SRES, ''); IF (SRES1! = NULL && (Sres1-Sres) <256) { CHAR TMP [256]; STRNCPY (TMP, SRES, (SRES1-SRES)); TMP [SRES1-SRES] = 0; INT I; For (i = Strlen (TMP) -1; (TMP [i] == '|| TMP [i] ==' / t ') && I> = 0; I -) TMP [I] = 0; For (i = 0; TMP [i] == '|| TMP [i] ==' / t '; i ); SendhtmlFile (RS, & TMP [I]); } Else { HTMLERROR (RS, 202, "Bad Request"); } CloseSocket (RS); } Return 0; }
