fix: decode WinRM Cyrillic from CP866 and show deploy.log UTF-8 (0.20.17)

backend/app/services/winrm_connect.py

@@ -19,7 +19,7 @@ _CLIXML_PROGRESS_NOISE = frozenset(
     }
 )
 _CLIXML_MARKER = "#< CLIXML"
-
+_CYRILLIC_RE = re.compile(r"[\u0400-\u04FF]")
 RDP_REMOTE_STAGING = r"C:\ProgramData\RDP-login-monitor\_sac_staging"
 RDP_BUNDLE_FILES = (
     "Login_Monitor.ps1",
@@ -128,6 +128,39 @@ def _clixml_to_plain(text: str) -> str:
     return without
 
 
+def _decode_text_score(text: str) -> int:
+    cyrillic = len(_CYRILLIC_RE.findall(text))
+    suspicious = len(re.findall(r"\?{3,}", text))
+    return cyrillic * 5 - text.count("\ufffd") * 20 - suspicious * 15 - max(0, text.count("?") - cyrillic) * 2
+
+
+def _decode_winrm_bytes(data: bytes) -> str:
+    if not data:
+        return ""
+    for encoding in ("utf-8-sig", "utf-8"):
+        try:
+            text = data.decode(encoding)
+        except UnicodeDecodeError:
+            break
+        score = _decode_text_score(text)
+        if text.isascii() or score > 0:
+            return text
+    best_score = -10_000
+    best_text = ""
+    for encoding in ("cp866", "cp1251"):
+        try:
+            text = data.decode(encoding)
+        except UnicodeDecodeError:
+            continue
+        score = _decode_text_score(text)
+        if score > best_score:
+            best_score = score
+            best_text = text
+    if best_text:
+        return best_text
+    return data.decode("utf-8", errors="replace")
+
+
 def _winrm_failure_detail(stdout: str, stderr: str, exit_code: int) -> str:
     stdout_plain = _clixml_to_plain(stdout)
     stderr_plain = _clixml_to_plain(stderr)
@@ -213,8 +246,8 @@ def run_winrm_ps(
     except Exception as exc:
         return WinRmCmdResult(ok=False, message=f"WinRM error ({target}): {exc}", target=target)
 
-    stdout = (result.std_out or b"").decode("utf-8", errors="replace")
-    stderr = (result.std_err or b"").decode("utf-8", errors="replace")
+    stdout = _decode_winrm_bytes(result.std_out or b"")
+    stderr = _decode_winrm_bytes(result.std_err or b"")
     exit_code = int(result.status_code)
     stdout, stderr = _sanitize_winrm_streams(stdout, stderr)
     return _finalize_winrm_run(
@@ -260,8 +293,8 @@ def run_winrm_cmd(
     except Exception as exc:
         return WinRmCmdResult(ok=False, message=f"WinRM error ({target}): {exc}", target=target)
 
-    stdout = (result.std_out or b"").decode("utf-8", errors="replace")
-    stderr = (result.std_err or b"").decode("utf-8", errors="replace")
+    stdout = _decode_winrm_bytes(result.std_out or b"")
+    stderr = _decode_winrm_bytes(result.std_err or b"")
     exit_code = int(result.status_code)
     stdout, stderr = _sanitize_winrm_streams(stdout, stderr)
     return _finalize_winrm_run(
@@ -292,6 +325,9 @@ def _powershell_script_prelude() -> str:
     return (
         "$ProgressPreference = 'SilentlyContinue'\n"
         "$InformationPreference = 'SilentlyContinue'\n"
+        "$utf8NoBom = New-Object System.Text.UTF8Encoding $false\n"
+        "[Console]::OutputEncoding = $utf8NoBom\n"
+        "$OutputEncoding = $utf8NoBom\n"
     )
 
 
@@ -338,8 +374,14 @@ def _deploy_from_staging_body(staging_path: str) -> str:
         f"$staging = '{literal}'\n"
         "$deploy = Join-Path $staging 'Deploy-LoginMonitor.ps1'\n"
         "if (-not (Test-Path -LiteralPath $deploy)) { throw \"Deploy-LoginMonitor.ps1 missing in staging\" }\n"
+        "$logPath = Join-Path $env:ProgramData 'RDP-login-monitor\\Logs\\deploy.log'\n"
         "Write-Output \"Running: $deploy -SourceShareRoot $staging\"\n"
         "powershell.exe -NoProfile -ExecutionPolicy Bypass -File $deploy -SourceShareRoot $staging\n"
+        "if (Test-Path -LiteralPath $logPath) {\n"
+        "  Write-Output ''\n"
+        "  Write-Output '--- deploy.log ---'\n"
+        "  Get-Content -LiteralPath $logPath -Encoding UTF8 | Select-Object -Last 60\n"
+        "}\n"
     )
 
 

backend/app/version.py

@@ -1,5 +1,5 @@
 """Единый источник версии SAC (API, health, логи, OpenAPI)."""
 
 APP_NAME = "Security Alert Center"
-APP_VERSION = "0.20.16"
+APP_VERSION = "0.20.17"
 APP_VERSION_LABEL = f"{APP_NAME} v.{APP_VERSION}"