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v1.8.98: fix ghost "eue" text in terminal — strip DCS/APC/PM/SOS sequences

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pyte 0.8.2 doesn't handle DCS string sequences (ESC P ... ST). When
nano/ncurses sends DECRQSS queries, pyte consumed the introducer but
rendered the payload as visible text. Added regex pre-filter to strip
DCS/APC/PM/SOS sequences before feeding data to pyte.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
chrome-storm-c442
2026-03-03 01:49:35 -05:00
parent 72c7da5765
commit 2f84429b10
3 changed files with 17 additions and 1 deletions
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16
gui/widgets/terminal_widget.py
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@@ -6,6 +6,7 @@ DECCKM, bracketed paste, mouse tracking, and professional copy/paste UX.
import codecs import codecs
import copy import copy
import re
import sys import sys
import time import time
import tkinter as tk import tkinter as tk
@@ -44,6 +45,16 @@ _CURSOR_BG = "#d3d7cf"
_DECCKM = 1 << 5 # Application cursor keys _DECCKM = 1 << 5 # Application cursor keys
_BRACKETED_PASTE = 2004 << 5 # Bracketed paste mode _BRACKETED_PASTE = 2004 << 5 # Bracketed paste mode
_MOUSE_BASIC = 1000 << 5 # Basic mouse tracking _MOUSE_BASIC = 1000 << 5 # Basic mouse tracking
# ── Strip DCS/APC/PM/SOS string sequences that pyte doesn't handle ────────
# These would otherwise leak payload bytes as visible text on screen.
# Matches: ESC P ... ST | ESC _ ... ST | ESC ^ ... ST | ESC X ... ST
# Also matches C1 variants (0x90, 0x9f, 0x9e, 0x98) and BEL as terminator.
_DCS_STRING_RE = re.compile(
r"(?:\x1b[P_^X]|\x90|\x9f|\x9e|\x98)" # string introducer
r"[^\x1b\x07]*" # payload (anything except ESC/BEL)
r"(?:\x1b\\|\x07|\x9c)?" # string terminator (ST/BEL) or end of data
)
_MOUSE_BTN_TRACK = 1002 << 5 # Button-event mouse tracking _MOUSE_BTN_TRACK = 1002 << 5 # Button-event mouse tracking
_MOUSE_ANY = 1003 << 5 # Any-event mouse tracking _MOUSE_ANY = 1003 << 5 # Any-event mouse tracking
_MOUSE_SGR = 1006 << 5 # SGR extended mouse encoding _MOUSE_SGR = 1006 << 5 # SGR extended mouse encoding
@@ -343,6 +354,11 @@ class TerminalWidget(tk.Frame):
def feed(self, data: bytes): def feed(self, data: bytes):
"""Feed raw bytes from SSH into pyte, schedule debounced render.""" """Feed raw bytes from SSH into pyte, schedule debounced render."""
text = self._utf8_decoder.decode(data) text = self._utf8_decoder.decode(data)
if not text:
return
# Strip DCS/APC/PM/SOS sequences that pyte can't parse
# (their payload leaks as visible text otherwise)
text = _DCS_STRING_RE.sub("", text)
if not text: if not text:
return return
self._stream.feed(text) self._stream.feed(text)

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releases/ServerManager-v1.8.98-win-x64.exe Normal file
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2
version.py
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@@ -1,6 +1,6 @@
"""Version info for ServerManager.""" """Version info for ServerManager."""
__version__ = "1.8.97" __version__ = "1.8.98"
__app_name__ = "ServerManager" __app_name__ = "ServerManager"
__author__ = "aibot777" __author__ = "aibot777"
__description__ = "Desktop GUI for managing remote servers" __description__ = "Desktop GUI for managing remote servers"