fix: display log errors message when failing to authenticate (#20)

Co-authored-by: Ayoub Faouzi <ayoubfaouzi@users.noreply.github.com>

Author: ayoubfaouzi

README.md

@@ -34,6 +34,7 @@ Available Commands:
   init        Configure saferwall CLI credentials
   scan        Upload and scan files
   rescan      Rescan an existing file using its hash
+  view        View scan results for a file by its SHA256 hash
   download    Download a sample (and its artifacts)
   souk        Populate malware-souk database
   version     Version number
@@ -44,9 +45,30 @@ Available Commands:
 Upload and scan files. Supports scanning a single file or an entire directory.
 
 ```sh
-saferwall-cli scan -p /path/to/sample
+# Scan a single file
+saferwall-cli scan /path/to/sample
+
+# Scan an entire directory
+saferwall-cli scan /path/to/directory
+
+# Scan with parallel uploads
+saferwall-cli scan -p 4 /path/to/directory
+
+# Force rescan if the file already exists
+saferwall-cli scan -f /path/to/sample
+
+# Enable detonation with custom timeout and OS
+saferwall-cli scan -d -t 30 -o win-7 /path/to/sample
 ```
 
+| Flag | Short | Default | Description |
+|------|-------|---------|-------------|
+| `--force` | `-f` | `false` | Force rescan if the file already exists |
+| `--parallel` | `-p` | `1` | Number of files to scan in parallel |
+| `--enableDetonation` | `-d` | `false` | Enable detonation (dynamic analysis) |
+| `--timeout` | `-t` | `15` | Detonation duration in seconds |
+| `--os` | `-o` | `win-10` | Preferred OS for detonation (`win-7` or `win-10`) |
+
 ### Rescan
 
 Rescan an existing file by its SHA256 hash, or rescan a batch of hashes from a text file.
@@ -55,6 +77,14 @@ Rescan an existing file by its SHA256 hash, or rescan a batch of hashes from a t
 saferwall-cli rescan <sha256>
 ```
 
+### View
+
+View scan results for a file by its SHA256 hash. Displays file identification (hashes, size), properties (format, packer, timestamps), classification verdict, and antivirus detection results. For archive files, it shows a summary table of all contained files.
+
+```sh
+saferwall-cli view <sha256>
+```
+
 ### Download
 
 Download a sample by its SHA256 hash, or provide a text file with one hash per line to download in batch.

cmd/download.go

@@ -46,7 +46,7 @@ var downloadCmd = &cobra.Command{
 		webSvc := webapi.New(cfg.Credentials.URL)
 		token, err := webSvc.Login(cfg.Credentials.Username, cfg.Credentials.Password)
 		if err != nil {
-			log.Fatalf("failed to login to saferwall web service")
+			log.Fatalf("failed to authenticate: %v", err)
 		}
 
 		hashes := collectHashes(arg)

cmd/rescan.go

@@ -50,7 +50,7 @@ var reScanCmd = &cobra.Command{
 		webSvc := webapi.New(cfg.Credentials.URL)
 		token, err := webSvc.Login(cfg.Credentials.Username, cfg.Credentials.Password)
 		if err != nil {
-			log.Fatalf("failed to login to saferwall web service")
+			log.Fatalf("failed to authenticate: %v", err)
 		}
 
 		arg := args[0]

cmd/scan.go

@@ -119,7 +119,7 @@ var scanCmd = &cobra.Command{
 		webSvc := webapi.New(cfg.Credentials.URL)
 		token, err := webSvc.Login(cfg.Credentials.Username, cfg.Credentials.Password)
 		if err != nil {
-			log.Fatalf("failed to login to saferwall web service")
+			log.Fatalf("failed to authenticate: %v", err)
 		}
 
 		scanFile(webSvc, args[0], token)

cmd/view.go

@@ -28,7 +28,7 @@ var viewCmd = &cobra.Command{
 		webSvc := webapi.New(cfg.Credentials.URL)
 		_, err := webSvc.Login(cfg.Credentials.Username, cfg.Credentials.Password)
 		if err != nil {
-			log.Fatalf("failed to login: %v", err)
+			log.Fatalf("failed to authenticate: %v", err)
 		}
 
 		var file entity.File
@@ -46,12 +46,12 @@ func init() {
 
 // Styles for the report output.
 var (
-	titleStyle   = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("12"))
-	headerStyle  = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("14"))
-	keyStyle     = lipgloss.NewStyle().Foreground(lipgloss.Color("8"))
-	detectStyle  = lipgloss.NewStyle().Foreground(lipgloss.Color("1"))
-	cleanStyle   = lipgloss.NewStyle().Foreground(lipgloss.Color("2"))
-	avNameStyle  = lipgloss.NewStyle().Width(24)
+	titleStyle  = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("12"))
+	headerStyle = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("14"))
+	keyStyle    = lipgloss.NewStyle().Foreground(lipgloss.Color("8"))
+	detectStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("1"))
+	cleanStyle  = lipgloss.NewStyle().Foreground(lipgloss.Color("2"))
+	avNameStyle = lipgloss.NewStyle().Width(24)
 )
 
 func printFileReport(file entity.File, webSvc webapi.Service) {