#2289 server-side encoding of clipboard data using brotli

git-svn-id: https://xpra.org/svn/Xpra/trunk@22643 3bb7dfac-3a0b-4e04-842a-767bc560f471

src/xpra/server/source/clipboard_connection.py

@@ -1,13 +1,13 @@
 # -*- coding: utf-8 -*-
 # This file is part of Xpra.
-# Copyright (C) 2010-2018 Antoine Martin <antoine@xpra.org>
+# Copyright (C) 2010-2019 Antoine Martin <antoine@xpra.org>
 # Copyright (C) 2008 Nathaniel Smith <njs@pobox.com>
 # Xpra is released under the terms of the GNU GPL v2, or, at your option, any
 # later version. See the file COPYING for details.
 
 from collections import deque
 
-from xpra.net.compression import Compressible
+from xpra.net.compression import Compressible, compressed_wrapper
 from xpra.server.source.stub_source_mixin import StubSourceMixin
 from xpra.platform.features import CLIPBOARDS
 from xpra.util import envint, XPRA_CLIPBOARD_NOTIFICATION_ID
@@ -132,5 +132,9 @@ def compress_clipboard(self, packet):
         packet = list(packet)
         for i, item in enumerate(packet):
             if isinstance(item, Compressible):
-                packet[i] = self.compressed_wrapper(item.datatype, item.data)
+                if self.brotli:
+                    packet[i] = compressed_wrapper(item.datatype, item.data,
+                                                               level=9, brotli=True, can_inline=False)
+                else:
+                    packet[i] = self.compressed_wrapper(item.datatype, item.data)
         self.queue_packet(packet)

src/xpra/server/source/encodings_mixin.py

@@ -14,7 +14,7 @@
 from xpra.server.server_core import ClientException
 from xpra.codecs.video_helper import getVideoHelper
 from xpra.codecs.codec_constants import video_spec
-from xpra.net.compression import compressed_wrapper, Compressed, use_lz4, use_lzo
+from xpra.net.compression import compressed_wrapper, Compressed, use_lz4, use_lzo, use_brotli
 from xpra.os_util import monotonic_time, strtobytes
 from xpra.server.background_worker import add_work_item
 from xpra.util import csv, typedict, envint
@@ -252,6 +252,9 @@ def parse_batch_int(value, varname):
         self.zlib = c.boolget("zlib", True)
         self.lz4 = c.boolget("lz4", False) and use_lz4
         self.lzo = c.boolget("lzo", False) and use_lzo
+        self.brotli = c.boolget("brotli", False) and use_brotli
+        log("compressors: zlib=%s, lz4=%s, lzo=%s, brotli=%s",
+            self.zlib, self.lz4, self.lzo, self.brotli)
 
         self.vrefresh = c.intget("vrefresh", -1)