static void idle(ClientData client_data, struct timeval *nowP)
{
int cnum;
struct connect_s *conn;
for (cnum = 0; cnum < AVAILABLE_FDS; ++cnum)
{
conn = &connects[cnum];
switch (conn->conn_state)
{
case CNST_READING:
if (nowP->tv_sec - conn->active_at >= CONFIG_THTTPD_IDLE_READ_LIMIT_SEC)
{
ndbg("%s connection timed out reading\n", httpd_ntoa(&conn->hc->client_addr));
httpd_send_err(conn->hc, 408, httpd_err408title, "",
httpd_err408form, "");
finish_connection(conn, nowP);
}
break;
case CNST_SENDING:
if (nowP->tv_sec - conn->active_at >= CONFIG_THTTPD_IDLE_SEND_LIMIT_SEC)
{
ndbg("%s connection timed out sending\n", httpd_ntoa(&conn->hc->client_addr));
clear_connection(conn, nowP);
}
break;
}
}
}
static void
idle( ClientData client_data, struct timeval* nowP )
{
int cnum;
connecttab* c;
for ( cnum = 0; cnum < max_connects; ++cnum )
{
c = &connects[cnum];
switch ( c->conn_state )
{
case CNST_READING:
if ( nowP->tv_sec - c->active_at >= IDLE_READ_TIMELIMIT )
{
httpd_send_err(
c->hc, 408, httpd_err408title, "", httpd_err408form, "" );
finish_connection( c, nowP );
}
break;
case CNST_SENDING:
case CNST_PAUSING:
if ( nowP->tv_sec - c->active_at >= IDLE_SEND_TIMELIMIT )
{
clear_connection( c, nowP );
}
break;
case CNST_SLEEPING:;
}
}
}
int32 PoorManServer::_Listener(void* data)
{
PRINT(("The listener thread is working.\n"));
int retval;
thread_id tid;
httpd_conn* hc;
PoorManServer* s = static_cast<PoorManServer*>(data);
while (s->fIsRunning) {
hc = new httpd_conn;
hc->initialized = 0;
PRINT(("calling httpd_get_conn()\n"));
retval = //accept(), blocked here
httpd_get_conn(s->fHttpdServer, s->fHttpdServer->listen4_fd, hc);
switch (retval) {
case GC_OK:
break;
case GC_FAIL:
httpd_destroy_conn(hc);
delete hc;
s->fIsRunning = false;
return -1;
case GC_NO_MORE:
//should not happen, since we have a blocking socket
httpd_destroy_conn(hc);
continue;
break;
default:
//shouldn't happen
continue;
break;
}
if (s->fCurConns > s->fMaxConns) {
httpd_send_err(hc, 503,
httpd_err503title, (char *)"", httpd_err503form, (char *)"");
httpd_write_response(hc);
continue;
}
tid = spawn_thread(
PoorManServer::_Worker,
"www connection",
B_NORMAL_PRIORITY,
static_cast<void*>(s)
);
if (tid < B_OK) {
continue;
}
/*We don't check the return code here.
*As we can't kill a thread that doesn't receive the
*httpd_conn, we simply let it die itself.
*/
send_data(tid, 512, &hc, sizeof(httpd_conn*));
atomic_add(&s->fCurConns, 1);
resume_thread(tid);
}//while
return 0;
}
static void
idle_read_connection( ClientData client_data, struct timeval* nowP )
{
connecttab* c;
c = (connecttab*) client_data.p;
c->idle_read_timer = (Timer*) 0;
if ( c->conn_state != CNST_FREE )
{
syslog( LOG_INFO,
"%.80s connection timed out reading",
httpd_ntoa( &c->hc->client_addr ) );
httpd_send_err( c->hc, 408, httpd_err408title, "", httpd_err408form, "" );
clear_connection( c, nowP );
}
}
static void handle_read(struct connect_s *conn, struct timeval *tv)
{
ClientData client_data;
httpd_conn *hc = conn->hc;
off_t actual;
int sz;
/* Is there room in our buffer to read more bytes? */
if (hc->read_idx >= hc->read_size)
{
if (hc->read_size > CONFIG_THTTPD_MAXREALLOC)
{
BADREQUEST("MAXREALLOC");
goto errout_with_400;
}
httpd_realloc_str(&hc->read_buf, &hc->read_size, hc->read_size + CONFIG_THTTPD_REALLOCINCR);
}
/* Read some more bytes */
sz = read(hc->conn_fd, &(hc->read_buf[hc->read_idx]), hc->read_size - hc->read_idx);
if (sz == 0)
{
BADREQUEST("EOF");
goto errout_with_400;
}
if (sz < 0)
{
/* Ignore EINTR and EAGAIN. Also ignore EWOULDBLOCK. At first glance
* you would think that connections returned by fdwatch as readable
* should never give an EWOULDBLOCK; however, this apparently can
* happen if a packet gets garbled.
*/
if (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK)
{
return;
}
ndbg("read(fd=%d) failed: %d\n", hc->conn_fd, errno);
BADREQUEST("read");
goto errout_with_400;
}
hc->read_idx += sz;
conn->active_at = tv->tv_sec;
/* Do we have a complete request yet? */
switch (httpd_got_request(hc))
{
case GR_NO_REQUEST:
return;
case GR_BAD_REQUEST:
BADREQUEST("httpd_got_request");
goto errout_with_400;
}
/* Yes. Try parsing and resolving it */
if (httpd_parse_request(hc) < 0)
{
goto errout_with_connection;
}
/* Start the connection going */
if (httpd_start_request(hc, tv) < 0)
{
/* Something went wrong. Close down the connection */
goto errout_with_connection;
}
/* Set up the file offsets to read */
conn->eof = false;
if (hc->got_range)
{
conn->offset = hc->range_start;
conn->end_offset = hc->range_end + 1;
}
else
{
conn->offset = 0;
if (hc->bytes_to_send < 0)
{
conn->end_offset = 0;
}
else
{
conn->end_offset = hc->bytes_to_send;
}
}
/* Check if it's already handled */
if (hc->file_fd < 0)
{
/* No file descriptor means someone else is handling it */
conn->offset = hc->bytes_sent;
goto errout_with_connection;
}
if (conn->offset >= conn->end_offset)
{
/* There's nothing to send */
goto errout_with_connection;
}
/* Seek to the offset of the next byte to send */
actual = lseek(hc->file_fd, conn->offset, SEEK_SET);
if (actual != conn->offset)
{
ndbg("fseek to %d failed: offset=%d errno=%d\n", conn->offset, actual, errno);
BADREQUEST("lseek");
goto errout_with_400;
}
/* We have a valid connection and a file to send to it */
conn->conn_state = CNST_SENDING;
client_data.p = conn;
fdwatch_del_fd(fw, hc->conn_fd);
return;
errout_with_400:
BADREQUEST("errout");
httpd_send_err(hc, 400, httpd_err400title, "", httpd_err400form, "");
errout_with_connection:
finish_connection(conn, tv);
return;
}
static void
handle_read( connecttab* c, struct timeval* tvP )
{
int sz;
httpd_conn* hc = c->hc;
/* Is there room in our buffer to read more bytes? */
if ( hc->read_idx >= hc->read_size )
{
if ( hc->read_size > 5000 )
{
httpd_send_err( hc, 400, httpd_err400title, "", httpd_err400form, "" );
finish_connection( c, tvP );
return;
}
httpd_realloc_str(
&hc->read_buf, &hc->read_size, hc->read_size + 1000 );
}
/* Read some more bytes. */
sz = read(
hc->conn_fd, &(hc->read_buf[hc->read_idx]),
hc->read_size - hc->read_idx );
if ( sz == 0 )
{
httpd_send_err( hc, 400, httpd_err400title, "", httpd_err400form, "" );
finish_connection( c, tvP );
return;
}
if ( sz < 0 )
{
/* Ignore EINTR and EAGAIN. Also ignore EWOULDBLOCK. At first glance
** you would think that connections returned by fdwatch as readable
** should never give an EWOULDBLOCK; however, this apparently can
** happen if a packet gets garbled.
*/
if ( errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK )
return;
httpd_send_err(
hc, 400, httpd_err400title, "", httpd_err400form, "" );
finish_connection( c, tvP );
return;
}
hc->read_idx += sz;
c->active_at = tvP->tv_sec;
/* Do we have a complete request yet? */
switch ( httpd_got_request( hc ) )
{
case GR_NO_REQUEST:
return;
case GR_BAD_REQUEST:
httpd_send_err( hc, 400, httpd_err400title, "", httpd_err400form, "" );
finish_connection( c, tvP );
return;
}
/* Yes. Try parsing and resolving it. */
if ( httpd_parse_request( hc ) < 0 )
{
finish_connection( c, tvP );
return;
}
/* Start the connection going. */
if ( httpd_start_request( hc, tvP ) < 0 )
{
/* Something went wrong. Close down the connection. */
finish_connection( c, tvP );
return;
}
if ( c->conn_state == CNST_SLEEPING )
{
return;
}
handle_read_2( c, tvP );
}
int32 PoorManServer::_Worker(void* data)
{
static const struct timeval kTimeVal = {60, 0};
PoorManServer* s = static_cast<PoorManServer*>(data);
httpd_conn* hc;
int retval;
if (has_data(find_thread(NULL))) {
thread_id sender;
if (receive_data(&sender, &hc, sizeof(httpd_conn*)) != 512)
goto cleanup;
} else {
// No need to go throught the whole cleanup, as we haven't open
// nor allocated ht yet.
atomic_add(&s->fCurConns, -1);
return 0;
}
PRINT(("A worker thread starts to work.\n"));
setsockopt(hc->conn_fd, SOL_SOCKET, SO_RCVTIMEO, &kTimeVal,
sizeof(struct timeval));
retval = recv(
hc->conn_fd,
&(hc->read_buf[hc->read_idx]),
hc->read_size - hc->read_idx,
0
);
if (retval < 0)
goto cleanup;
hc->read_idx += retval;
switch(httpd_got_request(hc)) {
case GR_GOT_REQUEST:
break;
case GR_BAD_REQUEST:
httpd_send_err(hc, 400,
httpd_err400title, (char *)"", httpd_err400form, (char *)"");
httpd_write_response(hc);//fall through
case GR_NO_REQUEST: //fall through
default: //won't happen
goto cleanup;
break;
}
if (httpd_parse_request(hc) < 0) {
httpd_write_response(hc);
goto cleanup;
}
retval = httpd_start_request(hc, (struct timeval*)0);
if (retval < 0) {
httpd_write_response(hc);
goto cleanup;
}
/*true means the connection is already handled
*by the directory index generator in httpd_start_request().
*/
if (hc->file_address == (char*) 0) {
static_cast<PoorManApplication*>(be_app)->GetPoorManWindow()->SetHits(
static_cast<PoorManApplication*>(be_app)->GetPoorManWindow()->GetHits() + 1
);
hc->conn_fd = -1;
goto cleanup;
}
switch (hc->method) {
case METHOD_GET:
s->_HandleGet(hc);
break;
case METHOD_HEAD:
s->_HandleHead(hc);
break;
case METHOD_POST:
s->_HandlePost(hc);
break;
}
cleanup: ;
httpd_close_conn(hc, (struct timeval*)0);
httpd_destroy_conn(hc);
delete hc;
atomic_add(&s->fCurConns, -1);
return 0;
}
static void
handle_read( connecttab* c, struct timeval* tvP )
{
int sz;
ClientData client_data;
httpd_conn* hc = c->hc;
/* Is there room in our buffer to read more bytes? */
if ( hc->read_idx >= hc->read_size )
{
if ( hc->read_size > 5000 )
{
httpd_send_err( hc, 400, httpd_err400title, "", httpd_err400form, "" );
clear_connection( c, tvP );
return;
}
httpd_realloc_str(
&hc->read_buf, &hc->read_size, hc->read_size + 1000 );
}
/* Read some more bytes. */
sz = read(
hc->conn_fd, &(hc->read_buf[hc->read_idx]),
hc->read_size - hc->read_idx );
/* Ignore EWOULDBLOCK errors. At first glance you would think that
** connections returned by fdwatch as readable should never give an
** EWOULDBLOCK; however, this apparently can happen if a packet gets
** garbled.
*/
if ( sz == 0 || ( sz < 0 && ( errno != EWOULDBLOCK ) ) )
{
httpd_send_err( hc, 400, httpd_err400title, "", httpd_err400form, "" );
clear_connection( c, tvP );
return;
}
hc->read_idx += sz;
/* Do we have a complete request yet? */
switch ( httpd_got_request( hc ) )
{
case GR_NO_REQUEST:
return;
case GR_BAD_REQUEST:
httpd_send_err( hc, 400, httpd_err400title, "", httpd_err400form, "" );
clear_connection( c, tvP );
return;
}
/* Yes. Try parsing and resolving it. */
if ( httpd_parse_request( hc ) < 0 )
{
clear_connection( c, tvP );
return;
}
/* Check the throttle table */
if ( ! check_throttles( c ) )
{
httpd_send_err(
hc, 503, httpd_err503title, "", httpd_err503form, hc->encodedurl );
clear_connection( c, tvP );
return;
}
/* Start the connection going. */
if ( httpd_start_request( hc, tvP ) < 0 )
{
/* Something went wrong. Close down the connection. */
clear_connection( c, tvP );
return;
}
/* Fill in bytes_to_send. */
if ( hc->got_range )
{
c->bytes_sent = hc->init_byte_loc;
c->bytes_to_send = hc->end_byte_loc + 1;
}
else
c->bytes_to_send = hc->bytes_to_send;
/* Check if it's already handled. */
if ( hc->file_address == (char*) 0 )
{
/* No file address means someone else is handling it. */
c->bytes_sent = hc->bytes_sent;
clear_connection( c, tvP );
return;
}
if ( c->bytes_sent >= c->bytes_to_send )
{
/* There's nothing to send. */
clear_connection( c, tvP );
return;
}
/* Cool, we have a valid connection and a file to send to it. */
c->conn_state = CNST_SENDING;
c->started_at = tvP->tv_sec;
c->wouldblock_delay = 0;
client_data.p = c;
tmr_cancel( c->idle_read_timer );
c->idle_read_timer = (Timer*) 0;
c->idle_send_timer = tmr_create(
tvP, idle_send_connection, client_data, IDLE_SEND_TIMELIMIT * 1000L,
0 );
if ( c->idle_send_timer == (Timer*) 0 )
{
syslog( LOG_CRIT, "tmr_create(idle_send_connection) failed" );
exit( 1 );
}
fdwatch_del_fd( hc->conn_fd );
fdwatch_add_fd( hc->conn_fd, c, FDW_WRITE );
}
