vpnem: VPN infrastructure with load-balanced multi-protocol nodesHEADmain

- Multi-protocol VPS nodes (VLESS-REALITY + Hysteria2 + SOCKS5)
- Smart load balancing via recommendation API
- Windows/Linux client (Go + Wails + sing-box)
- Server API with RealIP detection and connection tracking
- Auto-deployment via vpnui control plane
- Silent Windows installer with UAC elevation
- Load-based server recommendation (no sticky sessions)
- Best Server one-click connection workflow

1 files changed, 80 insertions, 0 deletions

diff --git a/internal/control/ssh_test.go b/internal/control/ssh_test.go
new file mode 100644
index 0000000..8b7afd0
--- /dev/null
+++ b/internal/control/ssh_test.go
@@ -0,0 +1,80 @@
+package control
+
+import (
+	"context"
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestValidateNodeSSHPasswordAuth(t *testing.T) {
+	t.Parallel()
+
+	node := Node{
+		ID:       "pw-01",
+		Name:     "Password Node",
+		Provider: "custom-vps",
+		Region:   "nl",
+		Host:     "203.0.113.20",
+		Enabled:  true,
+		SSH: SSHConfig{
+			User:        "root",
+			Port:        22,
+			Auth:        "password",
+			PasswordEnv: "VPNEM_TEST_PASSWORD",
+		},
+		Protocols: []ProtocolProfile{
+			{Type: "socks5", Enabled: true, Port: 1080},
+		},
+	}
+
+	if err := ValidateNode(node); err != nil {
+		t.Fatalf("ValidateNode() error = %v", err)
+	}
+}
+
+func TestWrapWithPasswordUsesSSHPass(t *testing.T) {
+	t.Setenv("VPNEM_TEST_PASSWORD", "secret")
+	node := Node{
+		ID:   "pw-01",
+		Name: "Password Node",
+		SSH: SSHConfig{
+			User:        "root",
+			Port:        22,
+			Auth:        "password",
+			PasswordEnv: "VPNEM_TEST_PASSWORD",
+		},
+	}
+
+	cmd, err := wrapWithPassword(context.Background(), node, "ssh", "-V")
+	if err != nil {
+		t.Fatalf("wrapWithPassword() error = %v", err)
+	}
+	if got := filepath.Base(cmd.Path); got != "sshpass" {
+		t.Fatalf("filepath.Base(cmd.Path) = %q, want sshpass", got)
+	}
+	if len(cmd.Args) < 4 {
+		t.Fatalf("cmd.Args too short: %#v", cmd.Args)
+	}
+	if cmd.Args[1] != "-p" || cmd.Args[2] != "secret" || cmd.Args[3] != "ssh" {
+		t.Fatalf("unexpected cmd.Args: %#v", cmd.Args)
+	}
+}
+
+func TestWrapWithPasswordRequiresEnv(t *testing.T) {
+	_ = os.Unsetenv("VPNEM_TEST_PASSWORD_MISSING")
+	node := Node{
+		ID:   "pw-01",
+		Name: "Password Node",
+		SSH: SSHConfig{
+			User:        "root",
+			Port:        22,
+			Auth:        "password",
+			PasswordEnv: "VPNEM_TEST_PASSWORD_MISSING",
+		},
+	}
+
+	if _, err := wrapWithPassword(context.Background(), node, "ssh", "-V"); err == nil {
+		t.Fatal("expected error for missing password env")
+	}
+}