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-rw-r--r--src/upnp/miniwget.c503
1 files changed, 503 insertions, 0 deletions
diff --git a/src/upnp/miniwget.c b/src/upnp/miniwget.c
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--- /dev/null
+++ b/src/upnp/miniwget.c
@@ -0,0 +1,503 @@
+/* $Id: miniwget.c,v 1.49 2011/05/06 14:54:42 nanard Exp $ */
+/* Project : miniupnp
+ * Author : Thomas Bernard
+ * Copyright (c) 2005-2011 Thomas Bernard
+ * This software is subject to the conditions detailed in the
+ * LICENCE file provided in this distribution. */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.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
+#ifndef strncasecmp
+#if defined(_MSC_VER) && (_MSC_VER >= 1400)
+#define strncasecmp _memicmp
+#else /* defined(_MSC_VER) && (_MSC_VER >= 1400) */
+#define strncasecmp memicmp
+#endif /* defined(_MSC_VER) && (_MSC_VER >= 1400) */
+#endif /* #ifndef strncasecmp */
+#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 "miniwget.h"
+#include "connecthostport.h"
+#include "receivedata.h"
+
+/*
+ * Read a HTTP response from a socket.
+ * Process Content-Length and Transfer-encoding headers.
+ */
+void *
+getHTTPResponse(int s, int * size)
+{
+ char buf[2048];
+ int n;
+ int endofheaders = 0;
+ int chunked = 0;
+ int content_length = -1;
+ unsigned int chunksize = 0;
+ unsigned int bytestocopy = 0;
+ /* buffers : */
+ char * header_buf;
+ int header_buf_len = 2048;
+ int header_buf_used = 0;
+ char * content_buf;
+ int content_buf_len = 2048;
+ int content_buf_used = 0;
+ char chunksize_buf[32];
+ int chunksize_buf_index;
+
+ header_buf = malloc(header_buf_len);
+ content_buf = malloc(content_buf_len);
+ chunksize_buf[0] = '\0';
+ chunksize_buf_index = 0;
+
+ while((n = receivedata(s, buf, 2048, 5000)) > 0)
+ {
+ if(endofheaders == 0)
+ {
+ int i;
+ int linestart=0;
+ int colon=0;
+ int valuestart=0;
+ if(header_buf_used + n > header_buf_len) {
+ header_buf = realloc(header_buf, header_buf_used + n);
+ header_buf_len = header_buf_used + n;
+ }
+ memcpy(header_buf + header_buf_used, buf, n);
+ header_buf_used += n;
+ /* search for CR LF CR LF (end of headers)
+ * recognize also LF LF */
+ i = 0;
+ while(i < (header_buf_used-1) && (endofheaders == 0)) {
+ if(header_buf[i] == '\r') {
+ i++;
+ if(header_buf[i] == '\n') {
+ i++;
+ if(i < header_buf_used && header_buf[i] == '\r') {
+ i++;
+ if(i < header_buf_used && header_buf[i] == '\n') {
+ endofheaders = i+1;
+ }
+ }
+ }
+ } else if(header_buf[i] == '\n') {
+ i++;
+ if(header_buf[i] == '\n') {
+ endofheaders = i+1;
+ }
+ }
+ i++;
+ }
+ if(endofheaders == 0)
+ continue;
+ /* parse header lines */
+ for(i = 0; i < endofheaders - 1; i++) {
+ if(colon <= linestart && header_buf[i]==':')
+ {
+ colon = i;
+ while(i < (endofheaders-1)
+ && (header_buf[i+1] == ' ' || header_buf[i+1] == '\t'))
+ i++;
+ valuestart = i + 1;
+ }
+ /* detecting end of line */
+ else if(header_buf[i]=='\r' || header_buf[i]=='\n')
+ {
+ if(colon > linestart && valuestart > colon)
+ {
+#ifdef DEBUG
+ printf("header='%.*s', value='%.*s'\n",
+ colon-linestart, header_buf+linestart,
+ i-valuestart, header_buf+valuestart);
+#endif
+ if(0==strncasecmp(header_buf+linestart, "content-length", colon-linestart))
+ {
+ content_length = atoi(header_buf+valuestart);
+#ifdef DEBUG
+ printf("Content-Length: %d\n", content_length);
+#endif
+ }
+ else if(0==strncasecmp(header_buf+linestart, "transfer-encoding", colon-linestart)
+ && 0==strncasecmp(header_buf+valuestart, "chunked", 7))
+ {
+#ifdef DEBUG
+ printf("chunked transfer-encoding!\n");
+#endif
+ chunked = 1;
+ }
+ }
+ while(header_buf[i]=='\r' || header_buf[i] == '\n')
+ i++;
+ linestart = i;
+ colon = linestart;
+ valuestart = 0;
+ }
+ }
+ /* copy the remaining of the received data back to buf */
+ n = header_buf_used - endofheaders;
+ memcpy(buf, header_buf + endofheaders, n);
+ /* if(headers) */
+ }
+ if(endofheaders)
+ {
+ /* content */
+ if(chunked)
+ {
+ int i = 0;
+ while(i < n)
+ {
+ if(chunksize == 0)
+ {
+ /* reading chunk size */
+ if(chunksize_buf_index == 0) {
+ /* skipping any leading CR LF */
+ if(i<n && buf[i] == '\r') i++;
+ if(i<n && buf[i] == '\n') i++;
+ }
+ while(i<n && isxdigit(buf[i]))
+ {
+ chunksize_buf[chunksize_buf_index++] = buf[i];
+ chunksize_buf[chunksize_buf_index] = '\0';
+ i++;
+ }
+ while(i<n && buf[i] != '\r' && buf[i] != '\n')
+ i++; /* discarding chunk-extension */
+ if(i<n && buf[i] == '\r') i++;
+ if(i<n && buf[i] == '\n') {
+ int j;
+ for(j = 0; j < chunksize_buf_index; j++) {
+ if(chunksize_buf[j] >= '0'
+ && chunksize_buf[j] <= '9')
+ chunksize = (chunksize << 4) + (chunksize_buf[j] - '0');
+ else
+ chunksize = (chunksize << 4) + ((chunksize_buf[j] | 32) - 'a' + 10);
+ }
+ chunksize_buf[0] = '\0';
+ chunksize_buf_index = 0;
+ i++;
+ } else {
+ /* not finished to get chunksize */
+ continue;
+ }
+#ifdef DEBUG
+ printf("chunksize = %u (%x)\n", chunksize, chunksize);
+#endif
+ if(chunksize == 0)
+ {
+#ifdef DEBUG
+ printf("end of HTTP content - %d %d\n", i, n);
+ /*printf("'%.*s'\n", n-i, buf+i);*/
+#endif
+ goto end_of_stream;
+ }
+ }
+ bytestocopy = ((int)chunksize < n - i)?chunksize:(n - i);
+ if((int)(content_buf_used + bytestocopy) > content_buf_len)
+ {
+ content_buf = (char *)realloc((void *)content_buf,
+ content_buf_used + bytestocopy);
+ content_buf_len = content_buf_used + bytestocopy;
+ }
+ memcpy(content_buf + content_buf_used, buf + i, bytestocopy);
+ content_buf_used += bytestocopy;
+ i += bytestocopy;
+ chunksize -= bytestocopy;
+ }
+ }
+ else
+ {
+ /* not chunked */
+ if(content_buf_used + n > content_buf_len)
+ {
+ content_buf = (char *)realloc((void *)content_buf,
+ content_buf_used + n);
+ content_buf_len = content_buf_used + n;
+ }
+ memcpy(content_buf + content_buf_used, buf, n);
+ content_buf_used += n;
+ }
+ }
+ /* use the Content-Length header value if available */
+ if(content_length > 0 && content_buf_used >= content_length)
+ {
+#ifdef DEBUG
+ printf("End of HTTP content\n");
+#endif
+ break;
+ }
+ }
+end_of_stream:
+ free(header_buf); header_buf = NULL;
+ *size = content_buf_used;
+ if(content_buf_used == 0)
+ {
+ free(content_buf);
+ content_buf = NULL;
+ }
+ return content_buf;
+}
+
+/* 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_storage saddr;
+ socklen_t saddrlen;
+
+ saddrlen = sizeof(saddr);
+ if(getsockname(s, (struct sockaddr *)&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());
+ }*/
+ /* the following code is only compatible with ip v4 addresses */
+ strncpy(addr_str, inet_ntoa(((struct sockaddr_in *)&saddr)->sin_addr), addr_str_len);
+#else
+#if 0
+ if(saddr.sa_family == AF_INET6) {
+ inet_ntop(AF_INET6,
+ &(((struct sockaddr_in6 *)&saddr)->sin6_addr),
+ addr_str, addr_str_len);
+ } else {
+ inet_ntop(AF_INET,
+ &(((struct sockaddr_in *)&saddr)->sin_addr),
+ addr_str, addr_str_len);
+ }
+#endif
+ /* getnameinfo return ip v6 address with the scope identifier
+ * such as : 2a01:e35:8b2b:7330::%4281128194 */
+ n = getnameinfo((const struct sockaddr *)&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: %s/%s, UPnP/1.0, MiniUPnPc/1.5\r\n"
+ "\r\n",
+ path, httpversion, host, port, PACKAGE, VERSION);
+ 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;
+ }
+ }
+ return getHTTPResponse(s, size);
+}
+
+/* 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, "1.1");
+/*
+ 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;
+ if(!url)
+ return 0;
+ p1 = strstr(url, "://");
+ if(!p1)
+ return 0;
+ p1 += 3;
+ if( (url[0]!='h') || (url[1]!='t')
+ ||(url[2]!='t') || (url[3]!='p'))
+ return 0;
+ memset(hostname, 0, MAXHOSTNAMELEN + 1);
+ if(*p1 == '[')
+ {
+ /* IP v6 : http://[2a00:1450:8002::6a]/path/abc */
+ p2 = strchr(p1, ']');
+ p3 = strchr(p1, '/');
+ if(p2 && p3)
+ {
+ p2++;
+ strncpy(hostname, p1, MIN(MAXHOSTNAMELEN, (int)(p2-p1)));
+ if(*p2 == ':')
+ {
+ *port = 0;
+ p2++;
+ while( (*p2 >= '0') && (*p2 <= '9'))
+ {
+ *port *= 10;
+ *port += (unsigned short)(*p2 - '0');
+ p2++;
+ }
+ }
+ else
+ {
+ *port = 80;
+ }
+ *path = p3;
+ return 1;
+ }
+ }
+ p2 = strchr(p1, ':');
+ p3 = strchr(p1, '/');
+ if(!p3)
+ return 0;
+ 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;
+#ifdef DEBUG
+ printf("parsed url : hostname='%s' port=%hu path='%s'\n", hostname, port, path);
+#endif
+ 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;
+#ifdef DEBUG
+ printf("parsed url : hostname='%s' port=%hu path='%s'\n", hostname, port, path);
+#endif
+ return miniwget2(url, hostname, port, path, size, addr, addrlen);
+}
+