/*
* Checks the file request response.
*/
BOOL PeerFileAccept (Connection *peer, UWORD ackstatus, UDWORD port)
{
Connection *flist, *fpeer;
flist = PeerFileCreate (peer->serv);
fpeer = ServerFindChild (flist->serv, peer->cont, TYPE_FILEDIRECT);
if (!flist || !fpeer || !port || (ackstatus == TCP_ACK_REFUSE))
{
if (fpeer)
TCPClose (fpeer);
return 0;
}
ASSERT_MSGDIRECT(peer);
ASSERT_FILELISTEN(flist);
ASSERT_FILEDIRECT(fpeer);
fpeer->connect = 0;
fpeer->oscar_dc_seq = 0;
fpeer->port = port;
fpeer->ip = peer->ip;
s_repl (&fpeer->server, s_ip (fpeer->ip));
if (prG->verbose)
rl_printf (i18n (2520, "Opening file transfer connection to %s:%s%ld%s... \n"),
s_wordquote (fpeer->server), COLQUOTE, UD2UL (fpeer->port), COLNONE);
TCPDispatchConn (fpeer);
return 1;
}
/*
* "Logs in" TCP connection by opening listening socket.
*/
Event *RemoteOpen (Connection *remo)
{
s_repl (&remo->server, s_realpath (remo->pref_server));
rl_printf (i18n (2223, "Opening scripting FIFO at %s... "), s_wordquote (remo->server));
remo->connect = 0;
remo->our_seq = 0;
remo->open = &RemoteOpen;
remo->dispatch = &RemoteDispatch;
remo->reconnect = NULL;
remo->close = &RemoteClose;
remo->our_session = 0;
remo->ip = 0;
remo->port = 0;
UtilIOConnectF (remo);
if (remo->connect)
remo->connect = CONNECT_OK | CONNECT_SELECT_R;
return NULL;
}
void PeerFileResend (Event *event)
{
Contact *cont;
Connection *fpeer = event->conn;
Packet *pak;
Event *event2;
int rc;
const char *opt_text;
if (!fpeer)
{
EventD (event);
return;
}
ASSERT_FILEDIRECT (fpeer);
cont = event->cont;
assert (cont);
if (!OptGetStr (event->opt, CO_FILENAME, &opt_text))
opt_text = "";
if (event->attempts >= MAX_RETRY_P2PFILE_ATTEMPTS || (!event->pak && !event->seq))
{
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (2168, "File transfer #%ld (%s) dropped after %ld attempts because of timeout.\n"),
UD2UL (event->seq), opt_text, UD2UL (event->attempts));
TCPClose (fpeer);
}
else if (!(fpeer->connect & CONNECT_MASK))
{
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (2072, "File transfer #%ld (%s) canceled because of closed connection.\n"),
UD2UL (event->seq), opt_text);
}
else if (~fpeer->connect & CONNECT_OK)
{
if (!event->seq)
event->attempts++;
event->due = time (NULL) + 20;
QueueEnqueue (event);
return;
}
else if (!event->seq)
{
fpeer->oscar_dc_seq = 0;
PeerPacketSend (fpeer, event->pak);
PacketD (event->pak);
event->pak = NULL;
}
else if (event->seq != fpeer->oscar_dc_seq)
{
event->due = time (NULL) + 10;
QueueEnqueue (event);
return;
}
else if (event->pak)
{
Connection *ffile;
struct stat finfo;
PeerPacketSend (fpeer, event->pak);
PacketD (event->pak);
event->pak = NULL;
QueueEnqueue (event);
ffile = ServerChild (fpeer->serv, fpeer->cont, TYPE_FILE);
fpeer->oscar_file = ffile;
if (stat (opt_text, &finfo))
{
rc = errno;
rl_printf (i18n (2071, "Couldn't stat file %s: %s (%d)\n"),
s_wordquote (opt_text), strerror (rc), rc);
}
ffile->oscar_file_len = finfo.st_size;
ffile->sok = open (opt_text, O_RDONLY);
if (ffile->sok == -1)
{
int rc = errno;
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (2083, "Cannot open file %s: %s (%d).\n"),
opt_text, strerror (rc), rc);
TCPClose (fpeer);
ConnectionD (ffile);
ConnectionD (fpeer);
return;
}
return;
}
else if (!fpeer->oscar_file || fpeer->connect & CONNECT_SELECT_W)
{
event->attempts++;
event->due = time (NULL) + 3;
QueueEnqueue (event);
return;
}
else
{
int len = 0;
pak = PeerPacketC (fpeer, 6);
len = read (fpeer->oscar_file->sok, pak->data + 1, 2048);
if (len == -1)
{
len = errno;
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (2086, "Error while reading file %s: %s (%d).\n"),
opt_text, strerror (len), len);
TCPClose (fpeer);
}
else
{
pak->len += len;
fpeer->oscar_file->oscar_file_done += len;
PeerPacketSend (fpeer, pak);
PacketD (pak);
if (len > 0)
{
if (fpeer->oscar_file->oscar_file_len)
ReadLinePromptUpdate (s_sprintf ("[%s%ld %02d%%%s] %s%s",
COLCONTACT, UD2UL (fpeer->oscar_file->oscar_file_done), (int)((100.0 * fpeer->oscar_file->oscar_file_done) / fpeer->oscar_file->oscar_file_len),
COLNONE, COLSERVER, i18n (2467, "climm>")));
else
ReadLinePromptUpdate (s_sprintf ("[%s%ld%s] %s%s",
COLCONTACT, UD2UL (fpeer->oscar_file->oscar_file_done),
COLNONE, COLSERVER, i18n (2467, "climm>")));
event->attempts = 0;
QueueEnqueue (event);
return;
}
ReadLinePromptReset ();
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (2087, "Finished sending file %s.\n"), opt_text);
ConnectionD (fpeer->oscar_file);
fpeer->oscar_dc_seq++;
event2 = QueueDequeue (fpeer, QUEUE_PEER_FILE, fpeer->oscar_dc_seq);
if (event2)
{
QueueEnqueue (event2);
QueueRetry (fpeer, QUEUE_PEER_FILE, fpeer->cont);
return;
}
else
{
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (2088, "Finished sending all %d files.\n"), fpeer->oscar_dc_seq - 1);
ConnectionD (fpeer);
}
}
}
EventD (event);
}
/*
* Dispatches incoming packets on the file transfer connection.
*/
void PeerFileDispatch (Connection *fpeer)
{
Contact *cont;
Packet *pak;
int err = 0;
ASSERT_FILEDIRECT (fpeer);
assert (fpeer->cont);
cont = fpeer->cont;
if (fpeer->connect & CONNECT_SELECT_W && UtilIOSelectIs (fpeer->sok, WRITEFDS))
{
fpeer->connect &= ~CONNECT_SELECT_W;
if (fpeer->oscar_file->oscar_file_len)
ReadLinePromptUpdate (s_sprintf ("[%s%ld:%02d%%%s] %s%s",
COLCONTACT, UD2UL (fpeer->oscar_file->oscar_file_done), (int)((100.0 * fpeer->oscar_file->oscar_file_done) / fpeer->oscar_file->oscar_file_len),
COLNONE, COLSERVER, i18n (2467, "climm>")));
UtilIOSendTCP2 (fpeer, NULL);
QueueRetry (fpeer, QUEUE_PEER_FILE, fpeer->cont);
if (!UtilIOSelectIs (fpeer->sok, READFDS))
return;
}
if (!(pak = UtilIOReceiveTCP2 (fpeer)))
return;
if (prG->verbose & DEB_PACKTCP)
TCPPrint (pak, fpeer, FALSE);
switch (PacketRead1 (pak))
{
strc_t name, text;
UDWORD len, off, nr, speed;
case 0:
PacketRead4 (pak); /* EMPTY */
nr = PacketRead4 (pak); /* COUNT */
len = PacketRead4 (pak); /* BYTES */
speed= PacketRead4 (pak); /* SPEED */
name = PacketReadL2Str (pak, NULL); /* NICK */
PacketD (pak);
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (2161, "Receiving %ld files with total size %ld bytes at speed %lx from %s.\n"),
UD2UL (nr), UD2UL (len), UD2UL (speed), ConvFromCont (name, cont));
if (len != fpeer->oscar_file_len)
{
rl_printf ("FIXME: byte len different than in file request: requested %ld, sending %ld.\n",
UD2UL (fpeer->oscar_file_len), UD2UL (len));
fpeer->oscar_file_len = len;
}
pak = PeerPacketC (fpeer, 1);
PacketWrite4 (pak, 64);
PacketWriteLNTS (pak, cont->nick);
PeerPacketSend (fpeer, pak);
PacketD (pak);
return;
case 1:
speed = PacketRead4 (pak); /* SPEED */
name = PacketReadL2Str (pak, NULL); /* NICK */
PacketD (pak);
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (2170, "Sending file at speed %lx to %s.\n"), UD2UL (speed), s_wordquote (ConvFromCont (name, cont)));
fpeer->oscar_dc_seq = 1;
QueueRetry (fpeer, QUEUE_PEER_FILE, cont);
return;
case 2:
PacketRead1 (pak); /* EMPTY */
name = PacketReadL2Str (pak, NULL);
text = PacketReadL2Str (pak, NULL);
len = PacketRead4 (pak);
PacketRead4 (pak); /* EMPTY */
PacketRead4 (pak); /* SPEED */
off = 0;
PacketD (pak);
{
Connection *ffile = ServerChild (fpeer->serv, fpeer->cont, TYPE_FILE);
char buf[200], *p;
int pos = 0;
struct stat finfo;
assert (ffile);
pos = snprintf (buf, sizeof (buf), "%sfiles" _OS_PATHSEPSTR "%s" _OS_PATHSEPSTR,
PrefUserDir (prG), cont->screen);
snprintf (buf + pos, sizeof (buf) - pos, "%s", ConvFromCont (name, cont));
for (p = buf + pos; *p; p++)
if (*p == '/')
*p = '_';
finfo.st_size = 0;
if (!stat (buf, &finfo))
if ((UDWORD)finfo.st_size < len)
off = finfo.st_size;
fpeer->oscar_file = ffile;
ffile->sok = open (buf, O_CREAT | O_WRONLY | (off ? O_APPEND : O_TRUNC), 0660);
if (ffile->sok == -1)
{
int rc = errno;
if (rc == ENOENT)
{
mkdir (s_sprintf ("%sfiles", PrefUserDir (prG)), 0700);
mkdir (s_sprintf ("%sfiles" _OS_PATHSEPSTR "%s", PrefUserDir (prG), cont->screen), 0700);
ffile->sok = open (buf, O_CREAT | O_WRONLY | (off ? O_APPEND : O_TRUNC), 0660);
}
if (ffile->sok == -1)
{
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (2083, "Cannot open file %s: %s (%d).\n"),
buf, strerror (rc), rc);
ConnectionD (fpeer);
return;
}
}
ffile->connect = CONNECT_OK;
ffile->oscar_file_len = len;
ffile->oscar_file_done = off;
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (2162, "Receiving file %s (%s) with %ld bytes as %s.\n"),
name->txt, text->txt, UD2UL (len), buf);
}
pak = PeerPacketC (fpeer, 3);
PacketWrite4 (pak, off);
PacketWrite4 (pak, 0);
PacketWrite4 (pak, 64);
PacketWrite4 (pak, 1);
PeerPacketSend (fpeer, pak);
PacketD (pak);
return;
case 3:
off = PacketRead4 (pak);
PacketRead4 (pak); /* EMPTY */
PacketRead4 (pak); /* SPEED */
nr = PacketRead4 (pak); /* NR */
PacketD (pak);
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (2163, "Sending file %ld at offset %ld.\n"),
UD2UL (nr), UD2UL (off));
err = lseek (fpeer->oscar_file->sok, off, SEEK_SET);
if (err == -1)
{
err = errno;
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (2084, "Error while seeking to offset %ld: %s (%d).\n"),
UD2UL (off), strerror (err), err);
TCPClose (fpeer);
return;
}
fpeer->oscar_file->oscar_file_done = off;
fpeer->oscar_file->connect = CONNECT_OK;
QueueRetry (fpeer, QUEUE_PEER_FILE, cont);
return;
case 4:
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (2169, "File transfer aborted by peer (%d).\n"),
PacketRead1 (pak));
PacketD (pak);
PeerFileClose (fpeer);
return;
case 5:
rl_printf ("FIXME: Ignoring speed change to %d.\n",
PacketRead1 (pak));
PacketD (pak);
return;
case 6:
if (fpeer->oscar_file->oscar_file_done + pak->len - 1 > fpeer->oscar_file->oscar_file_len)
{
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (2165, "The peer sent more bytes (%ld) than the file length (%ld).\n"),
UD2UL (fpeer->oscar_file->oscar_file_done + pak->len - 1), UD2UL (fpeer->oscar_file->oscar_file_len));
PacketD (pak);
TCPClose (fpeer);
return;
}
if (pak->len <= 1)
{
PacketD (pak);
return;
}
len = write (fpeer->oscar_file->sok, pak->data + 1, pak->len - 1);
if (len + 1 != pak->len)
{
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (2575, "Error writing to file (%lu bytes written out of %u).\n"), UD2UL (len), pak->len - 1);
PacketD (pak);
TCPClose (fpeer);
return;
}
fpeer->oscar_file->oscar_file_done += len;
if (fpeer->oscar_file->oscar_file_len == fpeer->oscar_file->oscar_file_done)
{
ReadLinePromptReset ();
rl_log_for (cont->nick, COLCONTACT);
rl_print (i18n (2166, "Finished receiving file.\n"));
#if HAVE_FSYNC
fsync (fpeer->oscar_file->sok);
#endif
close (fpeer->oscar_file->sok);
fpeer->oscar_file->sok = -1;
fpeer->oscar_file->connect = CONNECT_OK;
}
else if (fpeer->oscar_file->oscar_file_len)
{
ReadLinePromptUpdate (s_sprintf ("[%s%ld %02d%%%s] %s%s",
COLINCOMING, UD2UL (fpeer->oscar_file->oscar_file_done), (int)((100.0 * fpeer->oscar_file->oscar_file_done) / fpeer->oscar_file->oscar_file_len),
COLNONE, COLSERVER, i18n (2467, "climm>")));
}
PacketD (pak);
return;
default:
rl_log_for (cont->nick, COLCONTACT);
rl_print (i18n (2167, "Error - unknown packet.\n"));
rl_print (s_dump (pak->data, pak->len));
PacketD (pak);
PeerFileClose (fpeer);
}
if ((prG->verbose & DEB_TCP) && err)
{
rl_printf ("%s %s: %d\n", s_now, i18n (2029, "Protocol error on peer-to-peer connection"), err);
PeerFileClose (fpeer);
}
}
io_err_t UtilIOShowError (Connection *conn, io_err_t rc)
{
int e = errno;
const char *t = NULL;
switch (rc) {
case IO_CONNECTED:
rl_print ("");
if (prG->verbose || (conn->serv && conn == conn->serv->conn))
if (rl_pos () > 0)
rl_print (i18n (1634, "ok.\n"));
return IO_CONNECTED;
case IO_OK:
return IO_OK;
case IO_NO_MEM:
case IO_NO_PARAM:
assert (0);
case IO_NO_SOCKET:
if (1) t = i18n (1638, "Couldn't create socket"); else
case IO_NO_NONBLOCK:
if (1) t = i18n (1950, "Couldn't set socket nonblocking"); else
case IO_NO_HOSTNAME:
if (1) t = i18n (2743, "Can't find hostname"); else
case IO_CONN_TO:
if (1) t = i18n (2744, "Connection timed out"); else
case IO_NO_CONN:
t = i18n (1952, "Couldn't open connection");
if (prG->verbose || (conn->serv && conn == conn->serv->conn))
{
Contact *cont = conn->cont;
char *semi = strchr (conn->server, ';');
if (semi)
*semi = 0;
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (2745, "Opening connection to %s:%s%ld%s "),
s_wordquote (conn->server), COLQUOTE, UD2UL (conn->port), COLNONE);
if (semi)
*semi = ';';
rl_print (i18n (1949, "failed:\n"));
rl_printf ("%s [%d]\n",
s_sprintf ("%s: %s (%d).", t, conn->dispatcher->funcs->f_err (conn, conn->dispatcher), e),
__LINE__);
}
UtilIOClose (conn);
return IO_RW;
case IO_CLOSED:
#ifdef ECONNRESET
if (!errno)
errno = ECONNRESET;
#endif
case IO_RW:
if (prG->verbose || (conn->serv && conn == conn->serv->conn))
{
Contact *cont;
if ((cont = conn->cont))
{
rl_log_for (cont->nick, COLCONTACT);
rl_printf (i18n (1878, "Error while reading from socket: %s (%d, %d)\n"), conn->dispatcher->funcs->f_err (conn, conn->dispatcher), rc, errno);
}
}
UtilIOClose (conn);
return IO_RW;
default:
assert (0);
}
}
