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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* Cherokee
*
* Authors:
* Alvaro Lopez Ortega <alvaro@alobbs.com>
*
* Copyright (C) 2001-2010 Alvaro Lopez Ortega
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include "common-internal.h"
#include "source.h"
#include "config_node.h"
#include "resolv_cache.h"
#include "util.h"
#include "thread.h"
#include "connection-protected.h"
#define ENTRIES "source,src"
/* Implements _new() and _free()
*/
CHEROKEE_ADD_FUNC_NEW (source);
CHEROKEE_ADD_FUNC_FREE (source);
ret_t
cherokee_source_init (cherokee_source_t *src)
{
cherokee_buffer_init (&src->original);
cherokee_buffer_init (&src->unix_socket);
cherokee_buffer_init (&src->host);
src->type = source_host;
src->port = -1;
src->free = NULL;
return ret_ok;
}
ret_t
cherokee_source_mrproper (cherokee_source_t *src)
{
if (src->free)
src->free (src);
cherokee_buffer_mrproper (&src->original);
cherokee_buffer_mrproper (&src->unix_socket);
cherokee_buffer_mrproper (&src->host);
return ret_ok;
}
ret_t
cherokee_source_connect (cherokee_source_t *src, cherokee_socket_t *sock)
{
ret_t ret;
cherokee_resolv_cache_t *resolv;
/* Short path: it's already connecting
*/
if (sock->socket >= 0) {
return cherokee_socket_connect (sock);
}
/* Get required objects
*/
ret = cherokee_resolv_cache_get_default (&resolv);
if (unlikely (ret!=ret_ok)) {
return ret;
}
/* UNIX socket
*/
if (! cherokee_buffer_is_empty (&src->unix_socket)) {
ret = cherokee_socket_set_client (sock, AF_UNIX);
if (unlikely (ret != ret_ok)) {
return ret;
}
/* Copy the unix socket path */
ret = cherokee_socket_gethostbyname (sock, &src->unix_socket);
if (unlikely (ret != ret_ok)) {
return ret;
}
/* Set non-blocking */
ret = cherokee_fd_set_nonblocking (sock->socket, true);
if (unlikely (ret != ret_ok)) {
LOG_ERRNO (errno, cherokee_err_error, CHEROKEE_ERROR_SOURCE_NONBLOCK, sock->socket);
}
/* INET socket
*/
} else {
if (cherokee_string_is_ipv6 (&src->host)) {
ret = cherokee_socket_set_client (sock, AF_INET6);
} else {
ret = cherokee_socket_set_client (sock, AF_INET);
}
if (unlikely (ret != ret_ok)) {
return ret;
}
/* Query the host */
ret = cherokee_resolv_cache_get_host (resolv, &src->host, sock);
if (unlikely (ret != ret_ok)) {
return ret;
}
SOCKET_ADDR_IPv4(sock)->sin_port = htons(src->port);
/* Set non-blocking */
ret = cherokee_fd_set_nonblocking (sock->socket, true);
if (unlikely (ret != ret_ok)) {
LOG_ERRNO (errno, cherokee_err_error, CHEROKEE_ERROR_SOURCE_NONBLOCK, sock->socket);
}
}
/* Set close-on-exec */
cherokee_fd_set_closexec (sock->socket);
return cherokee_socket_connect (sock);
}
ret_t
cherokee_source_connect_polling (cherokee_source_t *src,
cherokee_socket_t *socket,
cherokee_connection_t *conn)
{
ret_t ret;
ret = cherokee_source_connect (src, socket);
switch (ret) {
case ret_ok:
TRACE (ENTRIES, "Connected successfully fd=%d\n", socket->socket);
return ret_ok;
case ret_deny:
break;
case ret_eagain:
ret = cherokee_thread_deactive_to_polling (CONN_THREAD(conn),
conn,
SOCKET_FD(socket),
FDPOLL_MODE_WRITE,
false);
if (ret != ret_ok) {
return ret_deny;
}
return ret_eagain;
case ret_error:
return ret_error;
default:
break;
}
TRACE (ENTRIES, "Couldn't connect%s", "\n");
return ret_error;
}
static ret_t
set_host (cherokee_source_t *src, cherokee_buffer_t *host)
{
ret_t ret;
cherokee_resolv_cache_t *resolv;
if (cherokee_buffer_is_empty (host))
return ret_error;
TRACE (ENTRIES, "Configuring source, setting host '%s'\n", host->buf);
/* Original
*/
cherokee_buffer_add_buffer (&src->original, host);
/* Unix socket
*/
if (host->buf[0] == '/') {
cherokee_buffer_add_buffer (&src->unix_socket, host);
return ret_ok;
}
/* Host name
*/
ret = cherokee_parse_host (host, &src->host, (cuint_t *)&src->port);
if (unlikely (ret != ret_ok)) {
return ret_error;
}
/* Resolve and cache it
*/
ret = cherokee_resolv_cache_get_default (&resolv);
if (unlikely (ret!=ret_ok)) {
return ret_error;
}
cherokee_resolv_cache_get_ipstr (resolv, &src->host, NULL);
return ret_ok;
}
ret_t
cherokee_source_configure (cherokee_source_t *src, cherokee_config_node_t *conf)
{
cherokee_list_t *i;
cherokee_config_node_t *child;
cherokee_config_node_foreach (i, conf) {
child = CONFIG_NODE(i);
if (equal_buf_str (&child->key, "host")) {
set_host (src, &child->val);
}
/* Base class: do not display error here
*/
}
return ret_ok;
}
ret_t
cherokee_source_copy_name (cherokee_source_t *src,
cherokee_buffer_t *buf)
{
if (! cherokee_buffer_is_empty (&src->unix_socket)) {
cherokee_buffer_add_buffer (buf, &src->unix_socket);
return ret_ok;
}
cherokee_buffer_add_buffer (buf, &src->host);
cherokee_buffer_add_char (buf, ':');
cherokee_buffer_add_ulong10 (buf, src->port);
return ret_ok;
}
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