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authorMaxim Devaev <[email protected]>2022-11-02 03:23:37 +0300
committerMaxim Devaev <[email protected]>2022-11-03 15:07:06 +0300
commit08241e92559cc037da4891e8c03b49b800fe43c1 (patch)
treed0221e1951a63d0ad761ea9abd172076ed6e8d93 /kvmd/apps/vnc/rfb
parentc57928a0f16ea4b5a1052ca00d616e56da82a274 (diff)
Implemented VNC ContinuousUpdates
Diffstat (limited to 'kvmd/apps/vnc/rfb')
-rw-r--r--kvmd/apps/vnc/rfb/__init__.py13
-rw-r--r--kvmd/apps/vnc/rfb/encodings.py2
2 files changed, 15 insertions, 0 deletions
diff --git a/kvmd/apps/vnc/rfb/__init__.py b/kvmd/apps/vnc/rfb/__init__.py
index f715f9b7..bbb3036c 100644
--- a/kvmd/apps/vnc/rfb/__init__.py
+++ b/kvmd/apps/vnc/rfb/__init__.py
@@ -159,6 +159,9 @@ class RfbClient(RfbClientStream): # pylint: disable=too-many-instance-attribute
async def _on_fb_update_request(self) -> None:
raise NotImplementedError
+ async def _on_enable_cont_updates(self, enabled: bool) -> None:
+ raise NotImplementedError
+
# =====
async def _send_fb_jpeg(self, data: bytes) -> None:
@@ -398,6 +401,7 @@ class RfbClient(RfbClientStream): # pylint: disable=too-many-instance-attribute
4: self.__handle_key_event,
5: self.__handle_pointer_event,
6: self.__handle_client_cut_text,
+ 150: self.__handle_enable_cont_updates,
255: self.__handle_qemu_event,
}
while True:
@@ -429,6 +433,9 @@ class RfbClient(RfbClientStream): # pylint: disable=too-many-instance-attribute
logger.info("%s [main]: ... %s", self._remote, item)
self.__check_encodings()
+ if self._encodings.has_cont_updates:
+ await self._write_struct("allow ContUpdates", "B", 150)
+
if self._encodings.has_ext_keys: # Preferred method
await self._write_fb_update("ExtKeys FBUR", 0, 0, RfbEncodings.EXT_KEYS, drain=True)
await self._on_set_encodings()
@@ -473,6 +480,12 @@ class RfbClient(RfbClientStream): # pylint: disable=too-many-instance-attribute
text = await self._read_text("cut text data", length)
await self._on_cut_event(text)
+ async def __handle_enable_cont_updates(self) -> None:
+ enabled = bool((await self._read_struct("enabled ContUpdates", "B HH HH"))[0])
+ await self._on_enable_cont_updates(enabled)
+ if not enabled:
+ await self._write_struct("disabled ContUpdates", "B", 150)
+
async def __handle_qemu_event(self) -> None:
(sub_type, state, code) = await self._read_struct("QEMU event (key?)", "B H xxxx L")
if sub_type != 0:
diff --git a/kvmd/apps/vnc/rfb/encodings.py b/kvmd/apps/vnc/rfb/encodings.py
index e153b5e8..597e3a92 100644
--- a/kvmd/apps/vnc/rfb/encodings.py
+++ b/kvmd/apps/vnc/rfb/encodings.py
@@ -31,6 +31,7 @@ class RfbEncodings:
RENAME = -307 # DesktopName Pseudo-encoding
LEDS_STATE = -261 # QEMU LED State Pseudo-encoding
EXT_KEYS = -258 # QEMU Extended Key Events Pseudo-encoding
+ CONT_UPDATES = -313 # ContinuousUpdates Pseudo-encoding
TIGHT = 7
TIGHT_JPEG_QUALITIES = dict(zip( # JPEG Quality Level Pseudo-encoding
@@ -53,6 +54,7 @@ class RfbClientEncodings: # pylint: disable=too-many-instance-attributes
has_rename: bool = dataclasses.field(default=False, metadata=_make_meta(RfbEncodings.RENAME)) # noqa: E224
has_leds_state: bool = dataclasses.field(default=False, metadata=_make_meta(RfbEncodings.LEDS_STATE)) # noqa: E224
has_ext_keys: bool = dataclasses.field(default=False, metadata=_make_meta(RfbEncodings.EXT_KEYS)) # noqa: E224
+ has_cont_updates: bool = dataclasses.field(default=False, metadata=_make_meta(RfbEncodings.CONT_UPDATES)) # noqa: E224
has_tight: bool = dataclasses.field(default=False, metadata=_make_meta(RfbEncodings.TIGHT)) # noqa: E224
tight_jpeg_quality: int = dataclasses.field(default=0, metadata=_make_meta(frozenset(RfbEncodings.TIGHT_JPEG_QUALITIES))) # noqa: E224