refactor: update NewPingManager to accept a config file parameter

- Modified the NewPingManager function to include a configFile argument for better SSH configuration management.
- Updated all relevant tests to reflect the new function signature.
- Enhanced ping functionality to support ProxyJump and ProxyCommand using an external SSH command.
- Adjusted UI initialization to pass the config file to the PingManager.

This change improves flexibility in managing SSH connections and enhances the overall functionality of the ping manager.

internal/connectivity/ping.go

@@ -2,12 +2,15 @@ package connectivity
 
 import (
 	"context"
+	"fmt"
 	"net"
-	"github.com/Gu1llaum-3/sshm/internal/config"
+	"os/exec"
 	"strings"
 	"sync"
 	"time"
 
+	"github.com/Gu1llaum-3/sshm/internal/config"
+
 	"golang.org/x/crypto/ssh"
 )
 
@@ -45,16 +48,18 @@ type HostPingResult struct {
 
 // PingManager manages SSH connectivity checks for multiple hosts
 type PingManager struct {
-	results map[string]*HostPingResult
+	results    map[string]*HostPingResult
-	mutex   sync.RWMutex
+	mutex      sync.RWMutex
-	timeout time.Duration
+	timeout    time.Duration
+	configFile string
 }
 
 // NewPingManager creates a new ping manager with the specified timeout
-func NewPingManager(timeout time.Duration) *PingManager {
+func NewPingManager(timeout time.Duration, configFile string) *PingManager {
 	return &PingManager{
-		results: make(map[string]*HostPingResult),
+		results:    make(map[string]*HostPingResult),
-		timeout: timeout,
+		timeout:    timeout,
+		configFile: configFile,
 	}
 }
 
@@ -98,6 +103,14 @@ func (pm *PingManager) PingHost(ctx context.Context, host config.SSHHost) *HostP
 	// Mark as connecting
 	pm.updateStatus(host.Name, StatusConnecting, nil, 0)
 
+	// If the host uses a ProxyJump or ProxyCommand, we need to use the external SSH command
+	// because implementing jump host support with pure Go ssh library requires
+	// handling authentication for the jump host, which is complex and requires
+	// access to the user's SSH agent or keys.
+	if host.ProxyJump != "" || host.ProxyCommand != "" {
+		return pm.pingWithExternalCommand(ctx, host, start)
+	}
+
 	// Determine the actual hostname and port
 	hostname := host.Hostname
 	if hostname == "" {
@@ -159,6 +172,53 @@ func (pm *PingManager) PingHost(ctx context.Context, host config.SSHHost) *HostP
 	}
 }
 
+// pingWithExternalCommand pings a host using the external SSH command
+func (pm *PingManager) pingWithExternalCommand(ctx context.Context, host config.SSHHost, start time.Time) *HostPingResult {
+	// Construct the SSH command
+	// ssh -q -o BatchMode=yes -o StrictHostKeyChecking=no -o ConnectTimeout=5 host exit
+	args := []string{"-q", "-o", "BatchMode=yes", "-o", "StrictHostKeyChecking=no"}
+
+	// Set timeout matching the manager's timeout
+	// Convert duration to seconds (rounding up to ensure we don't timeout too early in the command)
+	timeoutSec := int(pm.timeout.Seconds())
+	if timeoutSec < 1 {
+		timeoutSec = 1
+	}
+	args = append(args, "-o", fmt.Sprintf("ConnectTimeout=%d", timeoutSec))
+
+	// If we have a specific config file, use it
+	if pm.configFile != "" {
+		args = append(args, "-F", pm.configFile)
+	}
+
+	// Add the host name and the command to run (exit)
+	args = append(args, host.Name, "exit")
+
+	// Create command with context for timeout cancellation
+	// Note: We used pm.timeout for the ssh command option, but we also respect the context deadline
+	cmd := exec.CommandContext(ctx, "ssh", args...)
+
+	// Run the command
+	err := cmd.Run()
+	duration := time.Since(start)
+
+	var status PingStatus
+	if err != nil {
+		// SSH returns non-zero exit code on connection failure
+		status = StatusOffline
+	} else {
+		status = StatusOnline
+	}
+
+	pm.updateStatus(host.Name, status, err, duration)
+	return &HostPingResult{
+		HostName: host.Name,
+		Status:   status,
+		Error:    err,
+		Duration: duration,
+	}
+}
+
 // PingAllHosts pings all hosts concurrently and returns a channel of results
 func (pm *PingManager) PingAllHosts(ctx context.Context, hosts []config.SSHHost) <-chan *HostPingResult {
 	resultChan := make(chan *HostPingResult, len(hosts))

internal/connectivity/ping_test.go

@@ -9,7 +9,7 @@ import (
 )
 
 func TestNewPingManager(t *testing.T) {
-	pm := NewPingManager(5 * time.Second)
+	pm := NewPingManager(5*time.Second, "")
 	if pm == nil {
 		t.Error("NewPingManager() returned nil")
 	}
@@ -19,7 +19,7 @@ func TestNewPingManager(t *testing.T) {
 }
 
 func TestPingManager_PingHost(t *testing.T) {
-	pm := NewPingManager(1 * time.Second)
+	pm := NewPingManager(1*time.Second, "")
 	ctx := context.Background()
 
 	// Test ping method exists and doesn't panic
@@ -38,7 +38,7 @@ func TestPingManager_PingHost(t *testing.T) {
 }
 
 func TestPingManager_GetStatus(t *testing.T) {
-	pm := NewPingManager(1 * time.Second)
+	pm := NewPingManager(1*time.Second, "")
 
 	// Test unknown host
 	status := pm.GetStatus("unknown.host")
@@ -57,7 +57,7 @@ func TestPingManager_GetStatus(t *testing.T) {
 }
 
 func TestPingManager_PingMultipleHosts(t *testing.T) {
-	pm := NewPingManager(1 * time.Second)
+	pm := NewPingManager(1*time.Second, "")
 	hosts := []config.SSHHost{
 		{Name: "localhost", Hostname: "127.0.0.1", Port: "22"},
 		{Name: "invalid", Hostname: "invalid.host.12345", Port: "22"},
@@ -81,7 +81,7 @@ func TestPingManager_PingMultipleHosts(t *testing.T) {
 }
 
 func TestPingManager_GetResult(t *testing.T) {
-	pm := NewPingManager(1 * time.Second)
+	pm := NewPingManager(1*time.Second, "")
 	ctx := context.Background()
 
 	// Test getting result for unknown host
@@ -126,7 +126,7 @@ func TestPingStatus_String(t *testing.T) {
 
 func TestPingHost_Basic(t *testing.T) {
 	// Test that the ping functionality exists
-	pm := NewPingManager(1 * time.Second)
+	pm := NewPingManager(1*time.Second, "")
 	ctx := context.Background()
 	host := config.SSHHost{Name: "test", Hostname: "127.0.0.1", Port: "22"}
 

internal/ui/tui.go

@@ -38,7 +38,7 @@ func NewModel(hosts []config.SSHHost, configFile string, searchMode bool, curren
 	styles := NewStyles(80) // Default width
 
 	// Initialize ping manager with 5 second timeout
-	pingManager := connectivity.NewPingManager(5 * time.Second)
+	pingManager := connectivity.NewPingManager(5*time.Second, configFile)
 
 	// Create the model with default sorting by name
 	m := Model{