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/* $Id: minisoap.c,v 1.25 2017/04/21 10:03:24 nanard Exp $ */
/* vim: tabstop=4 shiftwidth=4 noexpandtab
* Project : miniupnp
* Author : Thomas Bernard
* Copyright (c) 2005-2018 Thomas Bernard
* This software is subject to the conditions detailed in the
* LICENCE file provided in this distribution.
*
* Minimal SOAP implementation for UPnP protocol.
*/
#include <stdio.h>
#include <string.h>
#ifdef _WIN32
#include <io.h>
#include <winsock2.h>
#define snprintf _snprintf
#else
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#endif
#include "minisoap.h"
#include "miniupnpcstrings.h"
/* only for malloc */
#include <stdlib.h>
#ifdef _WIN32
#define PRINT_SOCKET_ERROR(x) fprintf(stderr, "Socket error: %s, %d\n", x, WSAGetLastError());
#else
#define PRINT_SOCKET_ERROR(x) perror(x)
#endif
/* httpWrite sends the headers and the body to the socket
* and returns the number of bytes sent */
static int
httpWrite(SOCKET fd, const char * body, int bodysize,
const char * headers, int headerssize)
{
int n = 0;
/*n = write(fd, headers, headerssize);*/
/*if(bodysize>0)
n += write(fd, body, bodysize);*/
/* Note : my old linksys router only took into account
* soap request that are sent into only one packet */
char * p;
/* TODO: AVOID MALLOC, we could use writev() for that */
p = malloc(headerssize+bodysize);
if(!p)
return -1;
memcpy(p, headers, headerssize);
memcpy(p+headerssize, body, bodysize);
/*n = write(fd, p, headerssize+bodysize);*/
n = send(fd, p, headerssize+bodysize, 0);
if(n<0) {
PRINT_SOCKET_ERROR("send");
}
/* disable send on the socket */
/* draytek routers don't seem to like that... */
#if 0
#ifdef _WIN32
if(shutdown(fd, SD_SEND)<0) {
#else
if(shutdown(fd, SHUT_WR)<0) { /*SD_SEND*/
#endif
PRINT_SOCKET_ERROR("shutdown");
}
#endif
free(p);
return n;
}
/* self explanatory */
int soapPostSubmit(SOCKET fd,
const char * url,
const char * host,
unsigned short port,
const char * action,
const char * body,
const char * httpversion)
{
int bodysize;
char headerbuf[512];
int headerssize;
char portstr[8];
bodysize = (int)strlen(body);
/* We are not using keep-alive HTTP connections.
* HTTP/1.1 needs the header Connection: close to do that.
* This is the default with HTTP/1.0
* Using HTTP/1.1 means we need to support chunked transfer-encoding :
* When using HTTP/1.1, the router "BiPAC 7404VNOX" always use chunked
* transfer encoding. */
/* Connection: Close is normally there only in HTTP/1.1 but who knows */
portstr[0] = '\0';
if(port != 80)
snprintf(portstr, sizeof(portstr), ":%hu", port);
headerssize = snprintf(headerbuf, sizeof(headerbuf),
"POST %s HTTP/%s\r\n"
"Host: %s%s\r\n"
"User-Agent: " OS_STRING ", " UPNP_VERSION_STRING ", MiniUPnPc/" MINIUPNPC_VERSION_STRING "\r\n"
"Content-Length: %d\r\n"
"Content-Type: text/xml\r\n"
"SOAPAction: \"%s\"\r\n"
"Connection: Close\r\n"
"Cache-Control: no-cache\r\n" /* ??? */
"Pragma: no-cache\r\n"
"\r\n",
url, httpversion, host, portstr, bodysize, action);
if ((unsigned int)headerssize >= sizeof(headerbuf))
return -1;
#ifdef DEBUG
/*printf("SOAP request : headersize=%d bodysize=%d\n",
headerssize, bodysize);
*/
printf("SOAP request : POST %s HTTP/%s - Host: %s%s\n",
url, httpversion, host, portstr);
printf("SOAPAction: \"%s\" - Content-Length: %d\n", action, bodysize);
printf("Headers :\n%s", headerbuf);
printf("Body :\n%s\n", body);
#endif
return httpWrite(fd, body, bodysize, headerbuf, headerssize);
}
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