output/httpd: convert to C++

1 files changed, 215 insertions, 0 deletions

diff --git a/src/output/HttpdClient.hxx b/src/output/HttpdClient.hxx
new file mode 100644
index 000000000..d3ed2746d
--- /dev/null
+++ b/src/output/HttpdClient.hxx
@@ -0,0 +1,215 @@
+/*
+ * 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.
+ */
+
+#ifndef MPD_OUTPUT_HTTPD_CLIENT_HXX
+#define MPD_OUTPUT_HTTPD_CLIENT_HXX
+
+#include "gcc.h"
+
+#include <glib.h>
+
+#include <list>
+
+#include <stddef.h>
+
+struct httpd_output;
+struct page;
+
+class HttpdClient final {
+	/**
+	 * The httpd output object this client is connected to.
+	 */
+	httpd_output *const httpd;
+
+	/**
+	 * The TCP socket.
+	 */
+	GIOChannel *channel;
+
+	/**
+	 * The GLib main loop source id for reading from the socket,
+	 * and to detect errors.
+	 */
+	guint read_source_id;
+
+	/**
+	 * The GLib main loop source id for writing to the socket.  If
+	 * 0, then there is no event source currently (because there
+	 * are no queued pages).
+	 */
+	guint write_source_id;
+
+	/**
+	 * For buffered reading.  This pointer is only valid while the
+	 * HTTP request is read.
+	 */
+	struct fifo_buffer *input;
+
+	/**
+	 * The current state of the client.
+	 */
+	enum {
+		/** reading the request line */
+		REQUEST,
+
+		/** reading the request headers */
+		HEADERS,
+
+		/** sending the HTTP response */
+		RESPONSE,
+	} state;
+
+	/**
+	 * A queue of #page objects to be sent to the client.
+	 */
+	std::list<page *> pages;
+
+	/**
+	 * The #page which is currently being sent to the client.
+	 */
+	page *current_page;
+
+	/**
+	 * The amount of bytes which were already sent from
+	 * #current_page.
+	 */
+	size_t current_position;
+
+	/**
+         * If DLNA streaming was an option.
+         */
+	bool dlna_streaming_requested;
+
+	/* ICY */
+
+	/**
+	 * Do we support sending Icy-Metadata to the client?  This is
+	 * disabled if the httpd audio output uses encoder tags.
+	 */
+	bool metadata_supported;
+
+	/**
+	 * If we should sent icy metadata.
+	 */
+	bool metadata_requested;
+
+	/**
+	 * If the current metadata was already sent to the client.
+	 */
+	bool metadata_sent;
+
+	/**
+	 * The amount of streaming data between each metadata block
+	 */
+	guint metaint;
+
+	/**
+	 * The metadata as #page which is currently being sent to the client.
+	 */
+	page *metadata;
+
+	/*
+	 * The amount of bytes which were already sent from the metadata.
+	 */
+	size_t metadata_current_position;
+
+	/**
+	 * The amount of streaming data sent to the client
+	 * since the last icy information was sent.
+	 */
+	guint metadata_fill;
+
+public:
+	/**
+	 * @param httpd the HTTP output device
+	 * @param fd the socket file descriptor
+	 */
+	HttpdClient(httpd_output *httpd, int _fd, bool _metadata_supported);
+
+	/**
+	 * Note: this does not remove the client from the
+	 * #httpd_output object.
+	 */
+	~HttpdClient();
+
+	/**
+	 * Frees the client and removes it from the server's client list.
+	 */
+	void Close();
+
+	void LockClose();
+
+	/**
+	 * Returns the total size of this client's page queue.
+	 */
+	gcc_pure
+	size_t GetQueueSize() const;
+
+	/**
+	 * Clears the page queue.
+	 */
+	void CancelQueue();
+
+	bool Read();
+
+	/**
+	 * Data has been received from the client and it is appended
+	 * to the input buffer.
+	 */
+	bool Received();
+
+	/**
+	 * Check if a complete line of input is present in the input
+	 * buffer, and duplicates it.  It is removed from the input
+	 * buffer.  The return value has to be freed with g_free().
+	 */
+	char *ReadLine();
+
+	/**
+	 * Handle a line of the HTTP request.
+	 */
+	bool HandleLine(const char *line);
+
+	/**
+	 * Switch the client to the "RESPONSE" state.
+	 */
+	void BeginResponse();
+
+	/**
+	 * Sends the status line and response headers to the client.
+	 */
+	bool SendResponse();
+
+	gcc_pure
+	int GetBytesTillMetaData() const;
+
+	bool Write();
+
+	/**
+	 * Appends a page to the client's queue.
+	 */
+	void PushPage(page *page);
+
+	/**
+	 * Sends the passed metadata.
+	 */
+	void PushMetaData(page *page);
+};
+
+#endif