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strip sensitive information from logs

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This commit is contained in:
Tuan Nghia Nguyen
2026-04-26 07:35:30 +10:00
parent f81737ffc6
commit da94e7f6da
6 changed files with 225 additions and 51 deletions
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32
ANSLIB/ANSLIB.h
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@@ -305,6 +305,14 @@ namespace ANSCENTER {
// Used by the ANSLIB_DBG macro below; can also be called directly to
// gate expensive log-prep work.
static int IsDebugViewEnabled();
// DebugView emit. Hands a pre-formatted "[Tag] body\n" line to
// ANSCENTER_DebugLog inside the licensing DLL, which strips noise path
// prefixes (e.g. C:\ProgramData\ANSCENTER\, C:\ProgramData\<profile>\)
// before writing to OutputDebugStringA + stderr. Used by ANSLIB_DBG.
// If the licensing DLL is unavailable, falls back to raw emit (no
// filtering) so messages aren't lost.
static void DebugLog(const char* preformattedLine);
private:
HMODULE dllHandle = nullptr;
bool loaded = false;
@@ -455,16 +463,22 @@ public:
}
};
// ANSLIB_DBG: DebugView logging macro mirroring ANS_DBG, but the gate function
// is dynamic-loaded inside ANSLIB.dll — consumers don't need to link or even
// know about ANSLicensingSystem.dll. Output goes to BOTH OutputDebugStringA
// (DebugView) and stderr, identical format to ANS_DBG: "[tag] formatted\n".
// ANSLIB_DBG: DebugView logging macro mirroring ANS_DBG. Both the gate and the
// emit path are dynamic-loaded inside ANSLIB.dll — consumers don't need to
// link or even know about ANSLicensingSystem.dll. Output goes to BOTH
// OutputDebugStringA (DebugView) and stderr, identical format to ANS_DBG:
// "[tag] formatted\n".
//
// Noise path prefixes (e.g. C:\ProgramData\ANSCENTER\, C:\ProgramData\<profile>\)
// are stripped centrally inside ANSCENTER_DebugLog before emit, so log lines
// like "loaded from C:\ProgramData\Jh7O7nUe7vS\Models\Foo" appear as
// "loaded from Models\Foo".
//
// Usage: ANSLIB_DBG("MyModule", "value=%d ptr=%p", val, ptr);
//
// Hot-path cost when gate is OFF: one indirect call (atomic load + branch
// inside ANSLicensingSystem). When gate is ON: snprintf to a 1024-byte stack
// buffer + OutputDebugStringA + fputs. No heap, no per-call allocation.
// Hot-path cost when gate is OFF: one indirect call. When gate is ON: snprintf
// to a 1024-byte stack buffer + cross-DLL call into ANSCENTER_DebugLog (which
// scrubs prefixes then emits). No heap, no per-call allocation in the macro.
#ifndef ANSCORE_DEBUGVIEW
#define ANSCORE_DEBUGVIEW 1 // 1 = runtime-gated (default), 0 = hard-off (stripped)
#endif
@@ -473,9 +487,7 @@ public:
if (::ANSCENTER::ANSLIB::IsDebugViewEnabled()) { \
char _ansl_dbg_buf[1024]; \
snprintf(_ansl_dbg_buf, sizeof(_ansl_dbg_buf), "[" tag "] " fmt "\n", ##__VA_ARGS__); \
OutputDebugStringA(_ansl_dbg_buf); \
fputs(_ansl_dbg_buf, stderr); \
fflush(stderr); \
::ANSCENTER::ANSLIB::DebugLog(_ansl_dbg_buf); \
} \
} while(0)
#else