This commit is contained in:
@@ -1,19 +1,6 @@
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package blocker
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package blocker
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// BlockerEngine defines the interface for all firewall implementations
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type BlockerEngine interface {
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type BlockerEngine interface {
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// Core operations
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Ban(ip string) error
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Ban(ip string) error
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Unban(ip string) error
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Unban(ip string) error
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// Lifecycle management
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Setup() error
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Close() error
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// Query operations
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List() ([]string, error)
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// Metadata
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Name() string
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IsAvailable() bool
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}
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}
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@@ -20,23 +20,6 @@ func NewNftables(logger *logger.Logger, config string) *Nftables {
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}
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}
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}
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}
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// Name returns the blocker engine name
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func (n *Nftables) Name() string {
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return "nftables"
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}
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// IsAvailable checks if nftables is available in the system
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func (n *Nftables) IsAvailable() bool {
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cmd := exec.Command("which", "nft")
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return cmd.Run() == nil
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}
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// Setup initializes nftables with required tables and chains
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func (n *Nftables) Setup() error {
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return SetupNftables(n.config)
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}
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// Ban adds an IP to the banned list
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func (n *Nftables) Ban(ip string) error {
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func (n *Nftables) Ban(ip string) error {
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err := validateIP(ip)
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err := validateIP(ip)
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if err != nil {
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if err != nil {
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@@ -68,7 +51,6 @@ func (n *Nftables) Ban(ip string) error {
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return nil
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return nil
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}
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}
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// Unban removes an IP from the banned list
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func (n *Nftables) Unban(ip string) error {
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func (n *Nftables) Unban(ip string) error {
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err := validateIP(ip)
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err := validateIP(ip)
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if err != nil {
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if err != nil {
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@@ -114,45 +96,6 @@ func (n *Nftables) Unban(ip string) error {
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return nil
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return nil
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}
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}
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// List returns all currently banned IPs
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func (n *Nftables) List() ([]string, error) {
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cmd := exec.Command("sudo", "nft", "-a", "list", "chain", "inet", "banforge", "banned")
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output, err := cmd.CombinedOutput()
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if err != nil {
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n.logger.Error("failed to list banned IPs",
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"error", err.Error(),
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"output", string(output))
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return nil, err
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}
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var bannedIPs []string
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lines := strings.Split(string(output), "\n")
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for _, line := range lines {
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if strings.Contains(line, "drop") && strings.Contains(line, "saddr") {
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// Extract IP from line like: ip saddr 10.0.0.1 drop # handle 2
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parts := strings.Fields(line)
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for i, part := range parts {
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if part == "saddr" && i+1 < len(parts) {
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ip := parts[i+1]
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if validateIP(ip) == nil {
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bannedIPs = append(bannedIPs, ip)
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}
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break
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}
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}
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}
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}
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return bannedIPs, nil
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}
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// Close performs cleanup operations (placeholder for future use)
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func (n *Nftables) Close() error {
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// No cleanup needed for nftables
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n.logger.Info("nftables blocker closed")
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return nil
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}
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func SetupNftables(config string) error {
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func SetupNftables(config string) error {
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err := validateConfigPath(config)
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err := validateConfigPath(config)
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if err != nil {
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if err != nil {
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@@ -178,25 +121,6 @@ func SetupNftables(config string) error {
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}
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}
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}
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}
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cmd = exec.Command("sudo", "nft", "list", "chain", "inet", "banforge", "banned")
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if err := cmd.Run(); err != nil {
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cmd = exec.Command("sudo", "nft", "add", "chain", "inet", "banforge", "banned")
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output, err := cmd.CombinedOutput()
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if err != nil {
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return fmt.Errorf("failed to create banned chain: %s", string(output))
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}
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}
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cmd = exec.Command("sudo", "nft", "-a", "list", "chain", "inet", "banforge", "input")
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output, err := cmd.CombinedOutput()
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if err == nil && !strings.Contains(string(output), "jump banned") {
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cmd = exec.Command("sudo", "nft", "add", "rule", "inet", "banforge", "input", "jump", "banned")
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output, err = cmd.CombinedOutput()
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if err != nil {
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return fmt.Errorf("failed to add jump rule: %s", string(output))
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}
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}
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err = saveNftablesConfig(config)
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err = saveNftablesConfig(config)
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if err != nil {
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if err != nil {
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return fmt.Errorf("failed to save nftables config: %w", err)
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return fmt.Errorf("failed to save nftables config: %w", err)
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@@ -3,7 +3,6 @@ package blocker
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import (
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import (
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"fmt"
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"fmt"
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"os/exec"
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"os/exec"
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"strings"
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"github.com/d3m0k1d/BanForge/internal/logger"
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"github.com/d3m0k1d/BanForge/internal/logger"
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)
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)
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@@ -18,41 +17,6 @@ func NewUfw(logger *logger.Logger) *Ufw {
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}
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}
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}
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}
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// Name returns the blocker engine name
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func (u *Ufw) Name() string {
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return "ufw"
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}
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// IsAvailable checks if ufw is available in the system
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func (u *Ufw) IsAvailable() bool {
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cmd := exec.Command("which", "ufw")
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return cmd.Run() == nil
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}
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// Setup initializes UFW (if not already enabled)
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func (u *Ufw) Setup() error {
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// Check if UFW is enabled
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cmd := exec.Command("sudo", "ufw", "status")
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output, err := cmd.CombinedOutput()
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if err != nil || !strings.Contains(string(output), "active") {
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u.logger.Warn("UFW is not active, attempting to enable...")
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cmd := exec.Command("sudo", "ufw", "--force", "enable")
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output, err := cmd.CombinedOutput()
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if err != nil {
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u.logger.Error("failed to enable UFW",
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"error", err.Error(),
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"output", string(output))
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return fmt.Errorf("failed to enable UFW: %w", err)
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}
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u.logger.Info("UFW enabled successfully")
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}
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u.logger.Info("UFW setup completed")
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return nil
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}
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// Ban adds an IP to the deny list
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func (u *Ufw) Ban(ip string) error {
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func (u *Ufw) Ban(ip string) error {
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err := validateIP(ip)
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err := validateIP(ip)
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if err != nil {
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if err != nil {
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@@ -72,8 +36,6 @@ func (u *Ufw) Ban(ip string) error {
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u.logger.Info("IP banned", "ip", ip, "output", string(output))
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u.logger.Info("IP banned", "ip", ip, "output", string(output))
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return nil
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return nil
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}
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}
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// Unban removes an IP from the deny list
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func (u *Ufw) Unban(ip string) error {
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func (u *Ufw) Unban(ip string) error {
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err := validateIP(ip)
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err := validateIP(ip)
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if err != nil {
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if err != nil {
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@@ -93,44 +55,3 @@ func (u *Ufw) Unban(ip string) error {
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u.logger.Info("IP unbanned", "ip", ip, "output", string(output))
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u.logger.Info("IP unbanned", "ip", ip, "output", string(output))
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return nil
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return nil
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}
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}
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// List returns all currently denied IPs
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func (u *Ufw) List() ([]string, error) {
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cmd := exec.Command("sudo", "ufw", "status", "numbered")
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output, err := cmd.CombinedOutput()
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if err != nil {
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u.logger.Error("failed to list UFW rules",
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"error", err.Error(),
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"output", string(output))
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return nil, fmt.Errorf("failed to list UFW rules: %w", err)
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}
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var deniedIPs []string
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lines := strings.Split(string(output), "\n")
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for _, line := range lines {
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// Looking for lines with "Deny" and "From"
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if strings.Contains(line, "Deny") && strings.Contains(line, "Anywhere on") {
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// Parse UFW status output format
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parts := strings.Fields(line)
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for i, part := range parts {
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// Extract IP that comes after "from"
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if part == "from" && i+1 < len(parts) {
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ip := parts[i+1]
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if validateIP(ip) == nil {
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deniedIPs = append(deniedIPs, ip)
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}
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break
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}
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}
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}
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}
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return deniedIPs, nil
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}
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// Close performs cleanup operations (placeholder for future use)
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func (u *Ufw) Close() error {
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// No cleanup needed for UFW
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u.logger.Info("UFW blocker closed")
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return nil
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}
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Reference in New Issue
Block a user