neutrino: Added UnbanPeer method to ChainService

Signed-off-by: Ononiwu Maureen <amaka013@gmail.com>

neutrino.go

@@ -1081,6 +1081,24 @@ func (s *ChainService) BanPeer(addr string, reason banman.Reason) error {
 	return s.banStore.BanIPNet(ipNet, reason, BanDuration)
 }
 
+// UnbanPeer connects and unbans a previously banned peer.
+func (s *ChainService) UnbanPeer(addr string, parmanent bool) error {
+	log.Infof("UnBanning peer %v", addr)
+
+	ipNet, err := banman.ParseIPNet(addr, nil)
+	if err != nil {
+		return fmt.Errorf("unable to parse IP network for peer %v: %v",
+			addr, err)
+	}
+
+	err = s.banStore.UnbanIPNet(ipNet)
+	if err != nil {
+		return fmt.Errorf("unable to unban peer: %v", err)
+	}
+
+	return s.ConnectNode(addr, parmanent)
+}
+
 // IsBanned returns true if the peer is banned, and false otherwise.
 func (s *ChainService) IsBanned(addr string) bool {
 	ipNet, err := banman.ParseIPNet(addr, nil)