275 lines
6.6 KiB
C
275 lines
6.6 KiB
C
/* $Id: miniwget.c,v 1.37 2010/04/12 20:39:42 nanard Exp $ */
|
|
/* Project : miniupnp
|
|
* Author : Thomas Bernard
|
|
* Copyright (c) 2005-2010 Thomas Bernard
|
|
* This software is subject to the conditions detailed in the
|
|
* LICENCE file provided in this distribution. */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include "miniupnpc.h"
|
|
#ifdef WIN32
|
|
#include <winsock2.h>
|
|
#include <ws2tcpip.h>
|
|
#include <io.h>
|
|
#define MAXHOSTNAMELEN 64
|
|
#define MIN(x,y) (((x)<(y))?(x):(y))
|
|
#define snprintf _snprintf
|
|
#define socklen_t int
|
|
#else /* #ifdef WIN32 */
|
|
#include <unistd.h>
|
|
#include <sys/param.h>
|
|
#if defined(__amigaos__) && !defined(__amigaos4__)
|
|
#define socklen_t int
|
|
#else /* #if defined(__amigaos__) && !defined(__amigaos4__) */
|
|
#include <sys/select.h>
|
|
#endif /* #else defined(__amigaos__) && !defined(__amigaos4__) */
|
|
#include <sys/socket.h>
|
|
#include <arpa/inet.h>
|
|
#include <netdb.h>
|
|
#define closesocket close
|
|
/* defining MINIUPNPC_IGNORE_EINTR enable the ignore of interruptions
|
|
* during the connect() call */
|
|
#define MINIUPNPC_IGNORE_EINTR
|
|
#endif /* #else WIN32 */
|
|
#if defined(__sun) || defined(sun)
|
|
#define MIN(x,y) (((x)<(y))?(x):(y))
|
|
#endif
|
|
|
|
#include "miniupnpcstrings.h"
|
|
#include "miniwget.h"
|
|
#include "connecthostport.h"
|
|
|
|
/* miniwget3() :
|
|
* do all the work.
|
|
* Return NULL if something failed. */
|
|
static void *
|
|
miniwget3(const char * url, const char * host,
|
|
unsigned short port, const char * path,
|
|
int * size, char * addr_str, int addr_str_len, const char * httpversion)
|
|
{
|
|
char buf[2048];
|
|
int s;
|
|
int n;
|
|
int len;
|
|
int sent;
|
|
|
|
*size = 0;
|
|
s = connecthostport(host, port);
|
|
if(s < 0)
|
|
return NULL;
|
|
|
|
/* get address for caller ! */
|
|
if(addr_str)
|
|
{
|
|
struct sockaddr saddr;
|
|
socklen_t saddrlen;
|
|
|
|
saddrlen = sizeof(saddr);
|
|
if(getsockname(s, &saddr, &saddrlen) < 0)
|
|
{
|
|
perror("getsockname");
|
|
}
|
|
else
|
|
{
|
|
#if defined(__amigaos__) && !defined(__amigaos4__)
|
|
/* using INT WINAPI WSAAddressToStringA(LPSOCKADDR, DWORD, LPWSAPROTOCOL_INFOA, LPSTR, LPDWORD);
|
|
* But his function make a string with the port : nn.nn.nn.nn:port */
|
|
/* if(WSAAddressToStringA((SOCKADDR *)&saddr, sizeof(saddr),
|
|
NULL, addr_str, (DWORD *)&addr_str_len))
|
|
{
|
|
printf("WSAAddressToStringA() failed : %d\n", WSAGetLastError());
|
|
}*/
|
|
strncpy(addr_str, inet_ntoa(((struct sockaddr_in *)&saddr)->sin_addr), addr_str_len);
|
|
#else
|
|
/*inet_ntop(AF_INET, &saddr.sin_addr, addr_str, addr_str_len);*/
|
|
n = getnameinfo(&saddr, saddrlen,
|
|
addr_str, addr_str_len,
|
|
NULL, 0,
|
|
NI_NUMERICHOST | NI_NUMERICSERV);
|
|
if(n != 0) {
|
|
#ifdef WIN32
|
|
fprintf(stderr, "getnameinfo() failed : %d\n", n);
|
|
#else
|
|
fprintf(stderr, "getnameinfo() failed : %s\n", gai_strerror(n));
|
|
#endif
|
|
}
|
|
#endif
|
|
}
|
|
#ifdef DEBUG
|
|
printf("address miniwget : %s\n", addr_str);
|
|
#endif
|
|
}
|
|
|
|
len = snprintf(buf, sizeof(buf),
|
|
"GET %s HTTP/%s\r\n"
|
|
"Host: %s:%d\r\n"
|
|
"Connection: Close\r\n"
|
|
"User-Agent: " OS_STRING ", UPnP/1.0, MiniUPnPc/" MINIUPNPC_VERSION_STRING "\r\n"
|
|
|
|
"\r\n",
|
|
path, httpversion, host, port);
|
|
sent = 0;
|
|
/* sending the HTTP request */
|
|
while(sent < len)
|
|
{
|
|
n = send(s, buf+sent, len-sent, 0);
|
|
if(n < 0)
|
|
{
|
|
perror("send");
|
|
closesocket(s);
|
|
return NULL;
|
|
}
|
|
else
|
|
{
|
|
sent += n;
|
|
}
|
|
}
|
|
{
|
|
/* TODO : in order to support HTTP/1.1, chunked transfer encoding
|
|
* must be supported. That means parsing of headers must be
|
|
* added. */
|
|
int headers=1;
|
|
char * respbuffer = NULL;
|
|
int allreadyread = 0;
|
|
/*while((n = recv(s, buf, 2048, 0)) > 0)*/
|
|
while((n = ReceiveData(s, buf, 2048, 5000)) > 0)
|
|
{
|
|
if(headers)
|
|
{
|
|
int i=0;
|
|
while(i<n-3)
|
|
{
|
|
/* searching for the end of the HTTP headers */
|
|
if(buf[i]=='\r' && buf[i+1]=='\n'
|
|
&& buf[i+2]=='\r' && buf[i+3]=='\n')
|
|
{
|
|
headers = 0; /* end */
|
|
if(i<n-4)
|
|
{
|
|
/* Copy the content into respbuffet */
|
|
respbuffer = (char *)realloc((void *)respbuffer,
|
|
allreadyread+(n-i-4));
|
|
memcpy(respbuffer+allreadyread, buf + i + 4, n-i-4);
|
|
allreadyread += (n-i-4);
|
|
}
|
|
break;
|
|
}
|
|
i++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
respbuffer = (char *)realloc((void *)respbuffer,
|
|
allreadyread+n);
|
|
memcpy(respbuffer+allreadyread, buf, n);
|
|
allreadyread += n;
|
|
}
|
|
}
|
|
*size = allreadyread;
|
|
#ifdef DEBUG
|
|
printf("%d bytes read\n", *size);
|
|
#endif
|
|
closesocket(s);
|
|
return respbuffer;
|
|
}
|
|
}
|
|
|
|
/* miniwget2() :
|
|
* Call miniwget3(); retry with HTTP/1.1 if 1.0 fails. */
|
|
static void *
|
|
miniwget2(const char * url, const char * host,
|
|
unsigned short port, const char * path,
|
|
int * size, char * addr_str, int addr_str_len)
|
|
{
|
|
char * respbuffer;
|
|
|
|
respbuffer = miniwget3(url, host, port, path, size, addr_str, addr_str_len, "1.0");
|
|
if (*size == 0)
|
|
{
|
|
#ifdef DEBUG
|
|
printf("Retrying with HTTP/1.1\n");
|
|
#endif
|
|
free(respbuffer);
|
|
respbuffer = miniwget3(url, host, port, path, size, addr_str, addr_str_len, "1.1");
|
|
}
|
|
return respbuffer;
|
|
}
|
|
|
|
|
|
|
|
|
|
/* parseURL()
|
|
* arguments :
|
|
* url : source string not modified
|
|
* hostname : hostname destination string (size of MAXHOSTNAMELEN+1)
|
|
* port : port (destination)
|
|
* path : pointer to the path part of the URL
|
|
*
|
|
* Return values :
|
|
* 0 - Failure
|
|
* 1 - Success */
|
|
int parseURL(const char * url, char * hostname, unsigned short * port, char * * path)
|
|
{
|
|
char * p1, *p2, *p3;
|
|
p1 = strstr(url, "://");
|
|
if(!p1)
|
|
return 0;
|
|
p1 += 3;
|
|
if( (url[0]!='h') || (url[1]!='t')
|
|
||(url[2]!='t') || (url[3]!='p'))
|
|
return 0;
|
|
p2 = strchr(p1, ':');
|
|
p3 = strchr(p1, '/');
|
|
if(!p3)
|
|
return 0;
|
|
memset(hostname, 0, MAXHOSTNAMELEN + 1);
|
|
if(!p2 || (p2>p3))
|
|
{
|
|
strncpy(hostname, p1, MIN(MAXHOSTNAMELEN, (int)(p3-p1)));
|
|
*port = 80;
|
|
}
|
|
else
|
|
{
|
|
strncpy(hostname, p1, MIN(MAXHOSTNAMELEN, (int)(p2-p1)));
|
|
*port = 0;
|
|
p2++;
|
|
while( (*p2 >= '0') && (*p2 <= '9'))
|
|
{
|
|
*port *= 10;
|
|
*port += (unsigned short)(*p2 - '0');
|
|
p2++;
|
|
}
|
|
}
|
|
*path = p3;
|
|
return 1;
|
|
}
|
|
|
|
void * miniwget(const char * url, int * size)
|
|
{
|
|
unsigned short port;
|
|
char * path;
|
|
/* protocol://host:port/chemin */
|
|
char hostname[MAXHOSTNAMELEN+1];
|
|
*size = 0;
|
|
if(!parseURL(url, hostname, &port, &path))
|
|
return NULL;
|
|
return miniwget2(url, hostname, port, path, size, 0, 0);
|
|
}
|
|
|
|
void * miniwget_getaddr(const char * url, int * size, char * addr, int addrlen)
|
|
{
|
|
unsigned short port;
|
|
char * path;
|
|
/* protocol://host:port/chemin */
|
|
char hostname[MAXHOSTNAMELEN+1];
|
|
*size = 0;
|
|
if(addr)
|
|
addr[0] = '\0';
|
|
if(!parseURL(url, hostname, &port, &path))
|
|
return NULL;
|
|
return miniwget2(url, hostname, port, path, size, addr, addrlen);
|
|
}
|
|
|