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/*
* GTimer
*
* Copyright:
* (C) 1999 Craig Knudsen, cknudsen@cknudsen.com
* See accompanying file "COPYING".
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place,
* Suite 330, Boston, MA 02111-1307, USA
*
* Description:
* Routines for using HTTP.
*
* Author:
* Craig Knudsen, cknudsen@cknudsen.com, http://www.cknudsen.com
*
* Home Page:
* http://www.cknudsen.com/gtimer/
*
* History:
* 19-May-1999 Stole from another project to use on GTimer :-)
* 15-Aug-1995 Createdandle box to menu.
*
****************************************************************************/
#ifndef _HTTP_H
#define _HTTP_H
#include "tcpt.h" /* provides a little portability between UNIX/Win32 */
#define HTTP_PORT 80
#define HTTP_MAX_LINE_LEN 2048
/*
** Errors
*/
typedef enum {
HTTP_NO_ERROR = 0, /* success */
HTTP_INVALID_HOST = 1, /* invalid host specified */
HTTP_SYSTEM_ERROR = 2, /* error returned from system call */
/* error value set in errno */
HTTP_SOCKET_ERROR = 3, /* error returned from socket function */
/* winsock does not use error for errors */
HTTP_HTTP_ERROR = 4, /* error returned from server */
HTTP_NO_REQUESTS = 5, /* no requests on queue */
HTTP_TOO_MANY_REQUESTS = 6, /* too many requests queued */
HTTP_OTHER_ERROR = 7, /* other error */
HTTP_HOST_LOOKUP_FAILED = 8, /* unable to resolve name */
HTTP_UNKNOWN_ERROR = 9 /* unknown error */
} httpError;
/*
** Encode text suitable for use in a URL.
*/
char *url_encode (
#ifndef _NO_PROTO
char *str
#endif
);
/*
** httpErrorString - Translate a httpError value into a text string.
** If HTTP_SYSTEM_ERROR, then lookup the error using errno. If
** HTTP_SOCKET_ERROR, then use winsock to get an error value.
*/
char *httpErrorString (
#ifndef _NO_PROTO
httpError error_num /* Error value */
#endif
);
/*
** httpProcessRead - Perform what's been queued up now that data is
** ready to be read from the socket.
*/
httpError httpProcessRead (
#ifndef _NO_PROTO
sockfd connection
#endif
);
/*
** httpConnect - Attempt to connect to a server.
*/
httpError httpOpenConnection (
#ifndef _NO_PROTO
char *servername, /* in: hostname of http server */
int port, /* in: port to use (80) */
sockfd *connection /* return: socket (if successful) */
#endif
);
/*
** httpKillConnnection - Just close the socket immediately.
** Also removes all requests from the queue.
*/
httpError httpKillConnection (
#ifndef _NO_PROTO
sockfd connection /* in: connection to server */
#endif
);
/*
** Enable an HTTP proxy
*/
void httpEnableProxy (
#ifndef _NO_PROTO
char *server,
int port
#endif
);
/*
** Disable an HTTP proxy
*/
void httpDisableProxy ();
/*
** Generic http request
*/
httpError httpGet (
#ifndef _NO_PROTO
sockfd connection, /* in: connection to server */
char *virthost, /* in: hostname of server */
char *path, /* in: path to CGI */
char *qs_names[], /* in: names in form */
char *qs_values[], /* in: values in form */
int num, /* in: size of above arrays */
void (*callback)(char *,int) /* in: callback to call with data */
#endif
);
#endif /* _HTTP_H */
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