1 /* $Id: minisoap.c,v 1.16 2008/10/11 16:39:29 nanard Exp $ */
2 /* Project : miniupnp
3  * Author : Thomas Bernard
4  * Copyright (c) 2005 Thomas Bernard
5  * This software is subject to the conditions detailed in the
6  * LICENCE file provided in this distribution.
7  *
8  * Minimal SOAP implementation for UPnP protocol.
9  */
10 #include <stdio.h>
11 #include <string.h>
12 #ifdef WIN32
13 #include <io.h>
14 #include <winsock2.h>
15 #if _MSC_VER < 1900
16 #define snprintf _snprintf
17 #endif
18 #else
19 #include <unistd.h>
20 #include <sys/types.h>
21 #include <sys/socket.h>
22 #endif
23 #include "minisoap.h"
24 #include "miniupnpcstrings.h"
25 
26 /* only for malloc */
27 #include <stdlib.h>
28 
29 #ifdef WIN32
30 #define PRINT_SOCKET_ERROR(x)    printf("Socket error: %s, %d\n", x, WSAGetLastError());
31 #else
32 #define PRINT_SOCKET_ERROR(x) perror(x)
33 #endif
34 
35 /* httpWrite sends the headers and the body to the socket
36  * and returns the number of bytes sent */
37 static int
httpWrite(int fd,const char * body,int bodysize,const char * headers,int headerssize)38 httpWrite(int fd, const char * body, int bodysize,
39           const char * headers, int headerssize)
40 {
41 	int n = 0;
42 	/*n = write(fd, headers, headerssize);*/
43 	/*if(bodysize>0)
44 		n += write(fd, body, bodysize);*/
45 	/* Note : my old linksys router only took into account
46 	 * soap request that are sent into only one packet */
47 	char * p;
48 	/* TODO: AVOID MALLOC */
49 	p = malloc(headerssize+bodysize);
50 	if(!p)
51 	  return 0;
52 	memcpy(p, headers, headerssize);
53 	memcpy(p+headerssize, body, bodysize);
54 	/*n = write(fd, p, headerssize+bodysize);*/
55 	n = send(fd, p, headerssize+bodysize, 0);
56 	if(n<0) {
57 	  PRINT_SOCKET_ERROR("send");
58 	}
59 	/* disable send on the socket */
60 	/* draytek routers dont seems to like that... */
61 #if 0
62 #ifdef WIN32
63 	if(shutdown(fd, SD_SEND)<0) {
64 #else
65 	if(shutdown(fd, SHUT_WR)<0)	{ /*SD_SEND*/
66 #endif
67 		PRINT_SOCKET_ERROR("shutdown");
68 	}
69 #endif
70 	free(p);
71 	return n;
72 }
73 
74 /* self explanatory  */
75 int soapPostSubmit(int fd,
76                    const char * url,
77 				   const char * host,
78 				   unsigned short port,
79 				   const char * action,
80 				   const char * body)
81 {
82 	int bodysize;
83 	char headerbuf[512];
84 	int headerssize;
85 	char portstr[8];
86 	bodysize = (int)strlen(body);
87 	/* We are not using keep-alive HTTP connections.
88 	 * HTTP/1.1 needs the header Connection: close to do that.
89 	 * This is the default with HTTP/1.0 */
90     /* Connection: Close is normally there only in HTTP/1.1 but who knows */
91 	portstr[0] = '\0';
92 	if(port != 80)
93 		snprintf(portstr, sizeof(portstr), ":%hu", port);
94 	headerssize = snprintf(headerbuf, sizeof(headerbuf),
95                        "POST %s HTTP/1.1\r\n"
96 /*                       "POST %s HTTP/1.0\r\n"*/
97 	                   "Host: %s%s\r\n"
98 					   "User-Agent: " OS_STRING ", UPnP/1.0, MiniUPnPc/" MINIUPNPC_VERSION_STRING "\r\n"
99 	                   "Content-Length: %d\r\n"
100 					   "Content-Type: text/xml\r\n"
101 					   "SOAPAction: \"%s\"\r\n"
102 					   "Connection: Close\r\n"
103 					   "Cache-Control: no-cache\r\n"	/* ??? */
104 					   "Pragma: no-cache\r\n"
105 					   "\r\n",
106 					   url, host, portstr, bodysize, action);
107 #ifdef DEBUG
108 	printf("SOAP request : headersize=%d bodysize=%d\n",
109 	       headerssize, bodysize);
110 	/*printf("%s", headerbuf);*/
111 #endif
112 	return httpWrite(fd, body, bodysize, headerbuf, headerssize);
113 }
114 
115 
116