client_new: convert to C++

1 files changed, 169 insertions, 0 deletions

diff --git a/src/ClientNew.cxx b/src/ClientNew.cxx
new file mode 100644
index 00000000..28a837b6
--- /dev/null
+++ b/src/ClientNew.cxx
@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 "config.h"
+extern "C" {
+#include "client_internal.h"
+}
+#include "fd_util.h"
+extern "C" {
+#include "fifo_buffer.h"
+#include "resolver.h"
+#include "permission.h"
+}
+#include "glib_socket.h"
+
+#include <assert.h>
+#include <sys/types.h>
+#ifdef WIN32
+#include <winsock2.h>
+#else
+#include <sys/socket.h>
+#endif
+#include <unistd.h>
+
+#ifdef HAVE_LIBWRAP
+#include <tcpd.h>
+#endif
+
+
+#define LOG_LEVEL_SECURE G_LOG_LEVEL_INFO
+
+static const char GREETING[] = "OK MPD " PROTOCOL_VERSION "\n";
+
+void
+client_new(struct player_control *player_control,
+	   int fd, const struct sockaddr *sa, size_t sa_length, int uid)
+{
+	static unsigned int next_client_num;
+	struct client *client;
+	char *remote;
+
+	assert(player_control != NULL);
+	assert(fd >= 0);
+
+#ifdef HAVE_LIBWRAP
+	if (sa->sa_family != AF_UNIX) {
+		char *hostaddr = sockaddr_to_string(sa, sa_length, NULL);
+		const char *progname = g_get_prgname();
+
+		struct request_info req;
+		request_init(&req, RQ_FILE, fd, RQ_DAEMON, progname, 0);
+
+		fromhost(&req);
+
+		if (!hosts_access(&req)) {
+			/* tcp wrappers says no */
+			g_log(G_LOG_DOMAIN, LOG_LEVEL_SECURE,
+			      "libwrap refused connection (libwrap=%s) from %s",
+			      progname, hostaddr);
+
+			g_free(hostaddr);
+			close_socket(fd);
+			return;
+		}
+
+		g_free(hostaddr);
+	}
+#endif	/* HAVE_WRAP */
+
+	if (client_list_is_full()) {
+		g_warning("Max Connections Reached!");
+		close_socket(fd);
+		return;
+	}
+
+	client = g_new0(struct client, 1);
+	client->player_control = player_control;
+
+	client->channel = g_io_channel_new_socket(fd);
+	/* GLib is responsible for closing the file descriptor */
+	g_io_channel_set_close_on_unref(client->channel, true);
+	/* NULL encoding means the stream is binary safe; the MPD
+	   protocol is UTF-8 only, but we are doing this call anyway
+	   to prevent GLib from messing around with the stream */
+	g_io_channel_set_encoding(client->channel, NULL, NULL);
+	/* we prefer to do buffering */
+	g_io_channel_set_buffered(client->channel, false);
+
+	client->source_id = g_io_add_watch(client->channel,
+					   GIOCondition(G_IO_IN|G_IO_ERR|G_IO_HUP),
+					   client_in_event, client);
+
+	client->input = fifo_buffer_new(4096);
+
+	client->permission = getDefaultPermissions();
+	client->uid = uid;
+
+	client->last_activity = g_timer_new();
+
+	client->cmd_list = NULL;
+	client->cmd_list_OK = -1;
+	client->cmd_list_size = 0;
+
+	client->deferred_send = g_queue_new();
+	client->deferred_bytes = 0;
+	client->num = next_client_num++;
+
+	client->send_buf_used = 0;
+
+	client->subscriptions = NULL;
+	client->messages = NULL;
+	client->num_messages = 0;
+
+	(void)send(fd, GREETING, sizeof(GREETING) - 1, 0);
+
+	client_list_add(client);
+
+	remote = sockaddr_to_string(sa, sa_length, NULL);
+	g_log(G_LOG_DOMAIN, LOG_LEVEL_SECURE,
+	      "[%u] opened from %s", client->num, remote);
+	g_free(remote);
+}
+
+static void
+deferred_buffer_free(gpointer data, G_GNUC_UNUSED gpointer user_data)
+{
+	struct deferred_buffer *buffer = (struct deferred_buffer *)data;
+	g_free(buffer);
+}
+
+void
+client_close(struct client *client)
+{
+	client_list_remove(client);
+
+	client_set_expired(client);
+
+	g_timer_destroy(client->last_activity);
+
+	if (client->cmd_list) {
+		free_cmd_list(client->cmd_list);
+		client->cmd_list = NULL;
+	}
+
+	g_queue_foreach(client->deferred_send, deferred_buffer_free, NULL);
+	g_queue_free(client->deferred_send);
+
+	fifo_buffer_free(client->input);
+
+	g_log(G_LOG_DOMAIN, LOG_LEVEL_SECURE,
+	      "[%u] closed", client->num);
+	g_free(client);
+}