From dcc2fb8bdc38a05aeca974c0a35c1695717a15f4 Mon Sep 17 00:00:00 2001
From: Bernd Schoolmann <mail@quexten.com>
Date: Fri, 22 Dec 2023 15:29:58 +0100
Subject: [PATCH] Add debug logging

---
 .gitignore                               |  1 -
 browserbiometrics/communication.go       |  2 +-
 browserbiometrics/logging/debuglogger.go | 32 ++++++++++++++++++++++++
 browserbiometrics/logging/nooplogger.go  |  2 +-
 browserbiometrics/main.go                |  4 +++
 browserbiometrics/protocol.go            |  2 ++
 6 files changed, 40 insertions(+), 3 deletions(-)
 create mode 100644 browserbiometrics/logging/debuglogger.go

diff --git a/.gitignore b/.gitignore
index 26bab9a..034f749 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,2 @@
 .vscode
-*debug*
 goldwarden*
\ No newline at end of file
diff --git a/browserbiometrics/communication.go b/browserbiometrics/communication.go
index 534cc6d..89d95b4 100644
--- a/browserbiometrics/communication.go
+++ b/browserbiometrics/communication.go
@@ -52,7 +52,7 @@ func readMessageLength(msg []byte) int {
 
 func send(msg SendMessage) {
 	byteMsg := dataToBytes(msg)
-	logging.Debugf("Sending message: " + string(byteMsg))
+	logging.Debugf("[SENSITIVE] Sending message: " + string(byteMsg))
 	writeMessageLength(byteMsg)
 
 	var msgBuf bytes.Buffer
diff --git a/browserbiometrics/logging/debuglogger.go b/browserbiometrics/logging/debuglogger.go
new file mode 100644
index 0000000..9b6966c
--- /dev/null
+++ b/browserbiometrics/logging/debuglogger.go
@@ -0,0 +1,32 @@
+//go:build !nooplogging
+
+package logging
+
+import (
+	"fmt"
+	"os"
+	"time"
+)
+
+func writeLog(level string, format string, args ...interface{}) {
+	file, _ := os.OpenFile("/tmp/DELETE_ME.log", os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
+	// log with date and time
+	file.WriteString("[" + level + "] ")
+	file.WriteString(time.Now().Format("2006-01-02 15:04:05") + " ")
+	file.WriteString(fmt.Sprintf(format, args...))
+	file.WriteString("\n")
+	file.Close()
+}
+
+func Debugf(format string, args ...interface{}) {
+	writeLog("DEBUG", format, args...)
+}
+
+func Errorf(format string, args ...interface{}) {
+	writeLog("ERROR", format, args...)
+}
+
+func Panicf(format string, args ...interface{}) {
+	writeLog("PANIC", format, args...)
+	panic("")
+}
diff --git a/browserbiometrics/logging/nooplogger.go b/browserbiometrics/logging/nooplogger.go
index a769ab2..7a5bdd7 100644
--- a/browserbiometrics/logging/nooplogger.go
+++ b/browserbiometrics/logging/nooplogger.go
@@ -1,4 +1,4 @@
-//go:build !logging
+//go:build nooplogging
 
 package logging
 
diff --git a/browserbiometrics/main.go b/browserbiometrics/main.go
index d3b7bab..be3617e 100644
--- a/browserbiometrics/main.go
+++ b/browserbiometrics/main.go
@@ -5,6 +5,8 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
+
+	"github.com/quexten/goldwarden/browserbiometrics/logging"
 )
 
 const appID = "com.quexten.bw-bio-handler"
@@ -25,7 +27,9 @@ func Main() {
 		return
 	}
 
+	logging.Debugf("Starting browserbiometrics")
 	transportKey = generateTransportKey()
+	logging.Debugf("Generated transport key")
 
 	setupCommunication()
 	readLoop()
diff --git a/browserbiometrics/protocol.go b/browserbiometrics/protocol.go
index 050b16e..ecf97b0 100644
--- a/browserbiometrics/protocol.go
+++ b/browserbiometrics/protocol.go
@@ -18,11 +18,13 @@ func readLoop() {
 	lengthBytes := make([]byte, 4)
 	lengthNum := int(0)
 
+	logging.Debugf("Sending connected message")
 	send(SendMessage{
 		Command: "connected",
 		AppID:   appID,
 	})
 
+	logging.Debugf("Starting read loop")
 	for b, err := s.Read(lengthBytes); b > 0 && err == nil; b, err = s.Read(lengthBytes) {
 		lengthNum = readMessageLength(lengthBytes)