1 /* $Id: minisoap.c,v 1.30 2020/11/09 19:27:42 nanard Exp $ */
2 /* vim: tabstop=4 shiftwidth=4 noexpandtab
3 * Project : miniupnp
4 * Author : Thomas Bernard
5 * Copyright (c) 2005-2020 Thomas Bernard
6 * This software is subject to the conditions detailed in the
7 * LICENCE file provided in this distribution.
8 *
9 * Minimal SOAP implementation for UPnP protocol.
10 */
11 #include <stdio.h>
12 #include <string.h>
13 #ifdef _WIN32
14 #include <io.h>
15 #include <winsock2.h>
16 #include "win32_snprintf.h"
17 #else
18 #include <unistd.h>
19 #include <sys/types.h>
20 #include <sys/socket.h>
21 #endif
22 #include "minisoap.h"
23 #include "miniupnpcstrings.h"
24
25 /* only for malloc */
26 #include <stdlib.h>
27
28 /* httpWrite sends the headers and the body to the socket
29 * and returns the number of bytes sent */
30 static int
httpWrite(SOCKET fd,const char * body,int bodysize,const char * headers,int headerssize)31 httpWrite(SOCKET fd, const char * body, int bodysize,
32 const char * headers, int headerssize)
33 {
34 int n = 0;
35 /*n = write(fd, headers, headerssize);*/
36 /*if(bodysize>0)
37 n += write(fd, body, bodysize);*/
38 /* Note : my old linksys router only took into account
39 * soap request that are sent into only one packet */
40 char * p;
41 /* TODO: AVOID MALLOC, we could use writev() for that */
42 p = malloc(headerssize+bodysize);
43 if(!p)
44 return -1;
45 memcpy(p, headers, headerssize);
46 memcpy(p+headerssize, body, bodysize);
47 /*n = write(fd, p, headerssize+bodysize);*/
48 n = send(fd, p, headerssize+bodysize, 0);
49 if(n<0) {
50 PRINT_SOCKET_ERROR("send");
51 }
52 /* disable send on the socket */
53 /* draytek routers don't seem to like that... */
54 #if 0
55 #ifdef _WIN32
56 if(shutdown(fd, SD_SEND)<0) {
57 #else
58 if(shutdown(fd, SHUT_WR)<0) { /*SD_SEND*/
59 #endif
60 PRINT_SOCKET_ERROR("shutdown");
61 }
62 #endif
63 free(p);
64 return n;
65 }
66
67 /* self explanatory */
68 int soapPostSubmit(SOCKET fd,
69 const char * url,
70 const char * host,
71 unsigned short port,
72 const char * action,
73 const char * body,
74 const char * httpversion)
75 {
76 char headerbuf[512];
77 int headerssize;
78 char portstr[8];
79 int bodysize = (int)strlen(body);
80 /* We are not using keep-alive HTTP connections.
81 * HTTP/1.1 needs the header Connection: close to do that.
82 * This is the default with HTTP/1.0
83 * Using HTTP/1.1 means we need to support chunked transfer-encoding :
84 * When using HTTP/1.1, the router "BiPAC 7404VNOX" always use chunked
85 * transfer encoding. */
86 /* Connection: Close is normally there only in HTTP/1.1 but who knows */
87 portstr[0] = '\0';
88 if(port != 80)
89 snprintf(portstr, sizeof(portstr), ":%hu", port);
90 headerssize = snprintf(headerbuf, sizeof(headerbuf),
91 "POST %s HTTP/%s\r\n"
92 "Host: %s%s\r\n"
93 "User-Agent: " OS_STRING ", " UPNP_VERSION_STRING ", MiniUPnPc/" MINIUPNPC_VERSION_STRING "\r\n"
94 "Content-Length: %d\r\n"
95 "Content-Type: text/xml\r\n"
96 "SOAPAction: \"%s\"\r\n"
97 "Connection: Close\r\n"
98 "Cache-Control: no-cache\r\n" /* ??? */
99 "Pragma: no-cache\r\n"
100 "\r\n",
101 url, httpversion, host, portstr, bodysize, action);
102 if ((unsigned int)headerssize >= sizeof(headerbuf))
103 return -1;
104 #ifdef DEBUG
105 /*printf("SOAP request : headersize=%d bodysize=%d\n",
106 headerssize, bodysize);
107 */
108 printf("SOAP request : POST %s HTTP/%s - Host: %s%s\n",
109 url, httpversion, host, portstr);
110 printf("SOAPAction: \"%s\" - Content-Length: %d\n", action, bodysize);
111 printf("Headers :\n%s", headerbuf);
112 printf("Body :\n%s\n", body);
113 #endif
114 return httpWrite(fd, body, bodysize, headerbuf, headerssize);
115 }
116
117
118