124 lines
3.2 KiB
C
124 lines
3.2 KiB
C
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/*
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* Copyright (C) 2003-2009 The Music Player Daemon Project
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* http://www.musicpd.org
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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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "client_internal.h"
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#include "fifo_buffer.h"
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#include "socket_util.h"
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#include "permission.h"
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#include "config.h"
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#include <assert.h>
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#include <unistd.h>
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#define LOG_LEVEL_SECURE G_LOG_LEVEL_INFO
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static const char GREETING[] = "OK MPD " PROTOCOL_VERSION "\n";
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void client_new(int fd, const struct sockaddr *sa, size_t sa_length, int uid)
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{
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static unsigned int next_client_num;
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struct client *client;
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char *remote;
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assert(fd >= 0);
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if (client_list_is_full()) {
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g_warning("Max Connections Reached!");
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close(fd);
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return;
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}
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client = g_new0(struct client, 1);
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#ifndef G_OS_WIN32
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client->channel = g_io_channel_unix_new(fd);
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#else
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client->channel = g_io_channel_win32_new_socket(fd);
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#endif
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/* GLib is responsible for closing the file descriptor */
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g_io_channel_set_close_on_unref(client->channel, true);
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/* NULL encoding means the stream is binary safe; the MPD
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protocol is UTF-8 only, but we are doing this call anyway
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to prevent GLib from messing around with the stream */
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g_io_channel_set_encoding(client->channel, NULL, NULL);
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/* we prefer to do buffering */
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g_io_channel_set_buffered(client->channel, false);
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client->source_id = g_io_add_watch(client->channel,
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G_IO_IN|G_IO_ERR|G_IO_HUP,
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client_in_event, client);
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client->input = fifo_buffer_new(4096);
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client->permission = getDefaultPermissions();
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client->uid = uid;
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client->last_activity = g_timer_new();
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client->cmd_list = NULL;
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client->cmd_list_OK = -1;
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client->cmd_list_size = 0;
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client->deferred_send = g_queue_new();
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client->deferred_bytes = 0;
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client->num = next_client_num++;
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client->send_buf_used = 0;
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(void)write(fd, GREETING, sizeof(GREETING) - 1);
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client_list_add(client);
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remote = sockaddr_to_string(sa, sa_length, NULL);
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g_log(G_LOG_DOMAIN, LOG_LEVEL_SECURE,
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"[%u] opened from %s", client->num, remote);
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g_free(remote);
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}
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static void
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deferred_buffer_free(gpointer data, G_GNUC_UNUSED gpointer user_data)
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{
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struct deferred_buffer *buffer = data;
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g_free(buffer);
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}
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void
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client_close(struct client *client)
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{
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client_list_remove(client);
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client_set_expired(client);
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g_timer_destroy(client->last_activity);
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if (client->cmd_list) {
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free_cmd_list(client->cmd_list);
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client->cmd_list = NULL;
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}
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g_queue_foreach(client->deferred_send, deferred_buffer_free, NULL);
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g_queue_free(client->deferred_send);
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fifo_buffer_free(client->input);
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g_log(G_LOG_DOMAIN, LOG_LEVEL_SECURE,
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"[%u] closed", client->num);
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g_free(client);
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}
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