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427 lines
11 KiB
427 lines
11 KiB
/***************************************************************************
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* map_webload.c
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*
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* Thu Jul 19 19:00:10 2010
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* Copyright 2007 Steffen Pohle
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* steffen@gulpe.de
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****************************************************************************/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "map.h"
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#include "memoryleak.h"
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#include "system.h"
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#include "osmroute.h"
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#ifndef NET_HOSTLEN
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#define NET_HOSTLEN 128
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#endif
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#ifndef NET_PORTLEN
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#define NET_PORTLEN 5
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <time.h>
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#if defined(_WINDOWS_) || defined(_WINDOWSCE_)
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#include <winsock.h>
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#else
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#if !defined(ANDROID)
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#include <sys/un.h>
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#endif
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#include <arpa/inet.h>
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#endif
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#if defined(_WINDOWS_) || defined(_WINDOWSCE_)
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#define _sockaddr sockaddr
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#else
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#define _sockaddr sockaddr_in6
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#endif
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#include "system.h"
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// dns.c
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char *dns_net_getip (char *host);
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int dns_filladdr (char *host, int hostlen, char *port, int portlen, int ai_family, struct _sockaddr *sAddr);
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// tcp.c
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void tcp_close (int sock);
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int tcp_send (int sock, char *data, int len);
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int tcp_connect (char *host, char *port);
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int tcp_get (int tcpsocket, int len, char *data);
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void unblock_socket (int sock);
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/*********************************************
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* tcp ip stuff
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*/
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char dnsip[NET_HOSTLEN];
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int dns_filladdr (char *host, int hostlen, char *port, int portlen, int ai_family, struct _sockaddr *sAddr) {
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#if defined(_WINDOWS_) || defined(_WINDOWSCE_)
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struct hostent *he;
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char txt[255];
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if (host[0] == 0 || port[0] == 0) {
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/* we have to complete server and port from the sAddr */
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strncpy (host, inet_ntoa (((struct sockaddr_in *) sAddr)->sin_addr), hostlen);
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sprintf (txt, "%d", ntohs (((struct sockaddr_in *) sAddr)->sin_port));
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strncpy (port, txt, portlen);
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}
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else {
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/* we have to complete the sAddr struct */
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if ((he = gethostbyname (host)) == NULL) { // get the host info
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d_printf ("dns_filladdr (gethostbyname) %s", strerror (errno));
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return -1;
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}
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((struct sockaddr_in *) sAddr)->sin_family = ai_family; // host byte order
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((struct sockaddr_in *) sAddr)->sin_port = htons (atoi (port)); // short, network byte order
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((struct sockaddr_in *) sAddr)->sin_addr = *((struct in_addr *) he->h_addr);
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memset (&(((struct sockaddr_in *) sAddr)->sin_zero), '\0', 8); // zero the rest of the struct
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}
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#else
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struct addrinfo hints, *res;
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int err, i, addrlen;
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if (host[0] == 0 || port[0] == 0) {
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/* we have to complete server and port from the sAddr */
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if (ai_family == PF_INET)
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addrlen = sizeof (struct sockaddr_in);
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else
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addrlen = sizeof (struct sockaddr_in6);
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bzero (host, hostlen);
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bzero (port, portlen);
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if ((err =
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getnameinfo ((struct sockaddr *) sAddr, addrlen, host, hostlen, port, portlen,
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NI_NUMERICHOST | NI_NUMERICSERV)) < 0) {
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printf ("dns_filladdr (getnameinfo): %s\n", gai_strerror (err));
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return -1;
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}
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if (strstr (host, "::ffff:") != NULL) {
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for (i = 0; host[i + 7] != 0; i++)
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host[i] = host[i+7];
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host[i] = 0;
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}
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}
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else {
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/* we have to complete the sAddr struct */
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bzero (&hints, sizeof (struct addrinfo));
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hints.ai_family = ai_family;
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hints.ai_socktype = SOCK_DGRAM;
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if ((err = getaddrinfo (host, port, &hints, &res)) < 0) {
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d_printf ("dns_filladdr (getaddrinfo):%s\n", gai_strerror (err));
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return -1;
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}
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// i hope it's enough to copy only sizeof (struct sockaddr) ?
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memcpy (sAddr, res->ai_addr, res->ai_addrlen);
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freeaddrinfo (res);
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}
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#endif
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return 0;
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};
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char * dns_net_getip (char *host) {
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struct hostent *hAddr;
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hAddr = gethostbyname (host);
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if (hAddr == NULL)
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return NULL;
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strncpy (dnsip, inet_ntoa (*((struct in_addr *) hAddr->h_addr)), NET_HOSTLEN);
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return dnsip;
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};
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void unblock_socket (int sock) {
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#if defined(_WINDOWS_) || defined(_WINDOWSCE_)
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/* Windows Code of the tcp part
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is not needed, we will work over select */
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#else
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int flags;
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/* Linux Code of the tcp part
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* get current socket flags */
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if ((flags = fcntl (sock, F_GETFL)) == -1) {
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perror ("GETFL");
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}
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/* set socket to non-blocking */
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flags |= O_NDELAY;
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if (fcntl (sock, F_SETFL, flags) == -1) {
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perror ("SETFL");
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}
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#endif
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};
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/* close TCP Socket */
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void tcp_close (int sock) {
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close (sock);
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#if defined (_WINDOWS_) || defined (_WINDOWSCE_)
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WSACleanup ();
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#endif
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};
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/* send date to an TCP socket*/
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int tcp_send (int sock, char *data, int len) {
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return send (sock, data, len, 0);
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};
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/* connect to an server */
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int tcp_connect (char *host, char *port) {
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int err, sock = -1;
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#if defined(_WINDOWS_) || defined(_WINDOWSCE_)
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/* Windows Code of the tcp part */
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struct hostent *he;
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struct sockaddr_in adresse;
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WSADATA wsaData;
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if ((err = WSAStartup (MAKEWORD (1, 1), &wsaData)) != 0) {
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d_printf ("WSAStartup failed.\n");
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exit (1);
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}
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he = gethostbyname (host);
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if (he == NULL) {
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d_printf ("Error: Could not get hostname (%s)\n", host);
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return -1;
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}
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/* adressen vorbereiten */
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adresse.sin_family = AF_INET;
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adresse.sin_port = htons (atoi (port));
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memcpy (&adresse.sin_addr, he->h_addr_list[0], sizeof (adresse.sin_addr));
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/* Socket an Filediscriptor binden, aufbaun der verbindung */
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if ((sock = socket (PF_INET, SOCK_STREAM, 0)) < 0) {
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d_printf ("ERROR: could not get socket.\n");
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return -1;
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}
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if (connect (sock, (struct sockaddr *) &adresse, sizeof (adresse))) {
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d_printf ("ERROR: could not connect.\n");
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return -1;
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}
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#else
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/* Linux Code of the tcp part */
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struct addrinfo hints, *res, *sres;
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bzero (&hints, sizeof (struct addrinfo));
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hints.ai_flags = AI_PASSIVE;
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hints.ai_family = PF_INET;
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hints.ai_socktype = SOCK_STREAM;
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if ((err = getaddrinfo (host, port, &hints, &res)) == 0) {
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sres = res;
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if ((sock = socket (sres->ai_family, sres->ai_socktype, 0)) < 0) {
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d_printf ("%d=socket(PF_INET, SOCK_STREAM, 0)\n", sock);
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sock = -1;
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freeaddrinfo (res);
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return -1;
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}
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if (connect (sock, res->ai_addr, res->ai_addrlen) < 0) {
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d_printf ("connect error\n");
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close (sock);
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freeaddrinfo (res);
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return -1;
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}
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unblock_socket (sock);
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freeaddrinfo (res);
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}
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else {
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d_printf ("getaddrinfo:%s\n", gai_strerror (err));
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}
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#endif
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return sock;
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};
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/* gets some data from socket, if there are any data aviable */
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int tcp_get (int tcpsocket, int len, char *data) {
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int len_ = len;
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#if defined(_WINDOWS_) || defined(_WINDOWSCE_)
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/* Windows Code of the tcp part */
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fd_set rfds;
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struct timeval tval;
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FD_ZERO (&rfds);
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FD_SET (tcpsocket, &rfds);
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tval.tv_sec = 0;
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tval.tv_usec = 100;
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if (select (tcpsocket + 1, &rfds, NULL, NULL, &tval)) {
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len_ = recv (tcpsocket, data, len, 0);
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if (len_ == 0) {
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return -1;
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}
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else if (len_ < 0) {
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d_printf ("%s:%d tcp_get returned something different than the expected. len_:%d", __FILE__, __LINE__, len_);
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return -2;
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}
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data[len_] = 0;
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}
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else
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return 0;
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#else
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/* Linux Code of the tcp part */
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len_ = read (tcpsocket, data, len_);
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if (len_ < 0 && errno == EAGAIN)
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len_ = 0;
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else if (len_ < 0 && errno != EAGAIN) {
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d_printf ("tcp_get:%s", strerror (errno));
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len_ = -2;
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}
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else if (len_ == 0)
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len_ = -1;
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#endif
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return len_;
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}
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#define HOST "sposmroute.gulpe.de"
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#define PORT "80"
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#define URLPREFIX "/map/"
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#define BUFFERSIZE 4096
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int map_webload (char *remotefn, char *localfn, char *statustext) {
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char outdata[BUFFERSIZE];
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char indata[BUFFERSIZE];
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char host[NET_HOSTLEN];
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char port[NET_PORTLEN];
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char tmpfn[LEN_FILENAME];
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char text[255];
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int len, sock, i = 0, data = 0, fd = 0, filelen = 0, filesize = -1;
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int breakup;
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char _statustext[255];
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time_t to = time(NULL);
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if (statustext == NULL) _statustext[0] = 0;
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else strncpy (_statustext, statustext, 255);
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d_printf ("map_webload started");
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app_status(APPSTATUS_loadfromweb, NULL, 0.0);
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strncpy (host, HOST, NET_HOSTLEN);
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strncpy (port, PORT, NET_PORTLEN);
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sock = tcp_connect (host, port);
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if (sock <= 0) {
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d_printf ("map_webload: could not load file '%s' from web", remotefn);
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}
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else {
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snprintf (outdata, BUFFERSIZE, "GET %s%s HTTP/1.0\nUser-Agent: sposmroute map-dl \nHost: %s\n\n", URLPREFIX, remotefn, HOST);
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tcp_send (sock, outdata, strlen (outdata));
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map_save_all ();
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map_clear ();
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i = data = fd = filelen = breakup = 0;
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while (!breakup && (len = tcp_get (sock, BUFFERSIZE-1, indata)) >= 0) {
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if (fd && data && len > 0) filelen += write (fd, indata, len);
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else {
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indata[len] = 0;
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while (i < len -4 && data == 0) {
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if (fd && indata[i] == 0x0d && indata [i+1] == 0x0a && indata [i+2] == 0x0d && indata [i+3] == 0x0a) {
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data = 1;
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i = i + 4;
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d_printf ("download of file http://%s:%s%s%s started.", host, port, URLPREFIX, remotefn);
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filelen += write (fd, indata+i, len-i);
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}
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else if (strncmp (indata+i, "Content-Length:", 15) == 0) {
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filesize = atoi (indata+i+16);
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i = i + 16;
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}
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else if (strncmp (indata+i, "403 ", 4) == 0) break;
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else if (strncmp (indata+i, "200 ", 4) == 0) {
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sprintf (tmpfn, "%s.tmp", localfn);
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#if defined(_WINDOWS_) || defined (_WINDOWSCE_)
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fd = open (tmpfn, O_CREAT|O_RDWR | _O_BINARY, 0644);
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#else
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fd = open (tmpfn, O_CREAT|O_RDWR, 0644);
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#endif
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if (fd <= 0) {
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d_printf ("%s could not save file. [%s]", __FUNCTION__, tmpfn);
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breakup = 1;
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}
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i++;
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}
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else i++;
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}
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}
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if (to != time(NULL)) {
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to = time(NULL);
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if (filesize > 0) sprintf (text, _("%s%d/%dkb loaded"), _statustext, filelen/1024, filesize/1024);
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else sprintf (text, _("%s%dkb loaded"), _statustext, filelen/1024);
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app_status(-1, text, (float)((float)filelen/(float)filesize));
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main_wnd_update ();
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}
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}
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close (fd);
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tcp_close (sock);
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/* check if we had a valid file and rename the tmp to the real file */
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if (len == -1) {
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if (file_exist (localfn)) unlink (localfn);
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rename (tmpfn, localfn);
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d_printf ("map_webload finished to %s", localfn);
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}
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else {
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d_printf ("map_webload error");
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}
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/* delete tempory file */
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if (file_exist (tmpfn)) unlink (tmpfn);
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}
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app_status(APPSTATUS_nothing, NULL, 0.0);
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return 0;
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};
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