verbose rfb encdings report

This commit is contained in:
Maxim Devaev 2022-07-19 16:00:01 +03:00
parent 01ac7522db
commit 54cb5e1fed
2 changed files with 35 additions and 22 deletions

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@ -22,7 +22,6 @@
import asyncio
import ssl
import dataclasses
from typing import Tuple
from typing import List
@ -423,9 +422,9 @@ class RfbClient(RfbClientStream): # pylint: disable=too-many-instance-attribute
raise RfbError(f"Too many encodings: {encodings_count}")
self._encodings = RfbClientEncodings(frozenset(await self._read_struct("encodings list", "l" * encodings_count)))
logger.info("[main] %s: Client features (SetEncodings): ...", self._remote)
for (key, value) in dataclasses.asdict(self._encodings).items():
logger.info("[main] %s: ... %s=%s", self._remote, key, value)
logger.info("[main] %s: Client features (SetEncodings):", self._remote)
for item in self._encodings.get_summary():
logger.info("[main] %s: ... %s", self._remote, item)
self.__check_tight_jpeg()
if self._encodings.has_ext_keys: # Preferred method

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@ -22,7 +22,9 @@
import dataclasses
from typing import List
from typing import FrozenSet
from typing import Union
from typing import Any
@ -42,36 +44,48 @@ class RfbEncodings:
H264 = 50 # Open H.264 Encoding
def _feature(default: Any, variants: Union[int, FrozenSet[int]]) -> dataclasses.Field:
return dataclasses.field(default=default, metadata={
"variants": (frozenset([variants]) if isinstance(variants, int) else variants),
})
@dataclasses.dataclass(frozen=True)
class RfbClientEncodings: # pylint: disable=too-many-instance-attributes
encodings: FrozenSet[int]
has_resize: bool = dataclasses.field(default=False)
has_rename: bool = dataclasses.field(default=False)
has_leds_state: bool = dataclasses.field(default=False)
has_ext_keys: bool = dataclasses.field(default=False)
has_resize: bool = _feature(False, RfbEncodings.RESIZE)
has_rename: bool = _feature(False, RfbEncodings.RENAME)
has_leds_state: bool = _feature(False, RfbEncodings.LEDS_STATE)
has_ext_keys: bool = _feature(False, RfbEncodings.EXT_KEYS)
has_tight: bool = dataclasses.field(default=False)
tight_jpeg_quality: int = dataclasses.field(default=0)
has_tight: bool = _feature(False, RfbEncodings.TIGHT)
tight_jpeg_quality: int = _feature(0, frozenset(RfbEncodings.TIGHT_JPEG_QUALITIES))
has_h264: bool = dataclasses.field(default=False)
has_h264: bool = _feature(False, RfbEncodings.H264)
def get_summary(self) -> List[str]:
summary: List[str] = [f"encodings -- {sorted(self.encodings)}"]
for field in dataclasses.fields(self):
if field.name != "encodings":
found = ", ".join(map(str, sorted(map(int, self.__get_found(field)))))
summary.append(f"{field.name} [{found}] -- {getattr(self, field.name)}")
return summary
def __post_init__(self) -> None:
self.__set("has_resize", (RfbEncodings.RESIZE in self.encodings))
self.__set("has_rename", (RfbEncodings.RENAME in self.encodings))
self.__set("has_leds_state", (RfbEncodings.LEDS_STATE in self.encodings))
self.__set("has_ext_keys", (RfbEncodings.EXT_KEYS in self.encodings))
for field in dataclasses.fields(self):
if field.name != "encodings":
self.__set_value(field.name, bool(self.__get_found(field)))
self.__set_value("tight_jpeg_quality", self.__get_tight_jpeg_quality())
self.__set("has_tight", (RfbEncodings.TIGHT in self.encodings))
self.__set("tight_jpeg_quality", self.__get_tight_jpeg_quality())
self.__set("has_h264", (RfbEncodings.H264 in self.encodings))
def __set(self, key: str, value: Any) -> None:
def __set_value(self, key: str, value: Any) -> None:
object.__setattr__(self, key, value)
def __get_found(self, field: dataclasses.Field) -> None:
return self.encodings.intersection(field.metadata["variants"])
def __get_tight_jpeg_quality(self) -> int:
if RfbEncodings.TIGHT in self.encodings:
if self.has_tight:
qualities = self.encodings.intersection(RfbEncodings.TIGHT_JPEG_QUALITIES)
if qualities:
return RfbEncodings.TIGHT_JPEG_QUALITIES[max(qualities)]