From a6848078aa57a3098ab5f8c2dca520161a3a282d Mon Sep 17 00:00:00 2001
From: HimbeerserverDE <himbeerserverde@gmail.com>
Date: Sat, 6 Mar 2021 15:57:39 +0100
Subject: [PATCH] Add banlist command

---
 ban.go     | 32 ++++++++++++++++++++++++++++++++
 igutils.go | 18 ++++++++++++++++++
 2 files changed, 50 insertions(+)

diff --git a/ban.go b/ban.go
index b767d4a..464bc4d 100644
--- a/ban.go
+++ b/ban.go
@@ -80,6 +80,38 @@ func deleteBanItem(db *sql.DB, name string) error {
 	return nil
 }
 
+// BanList returns the list of banned players and IP addresses
+func BanList() (map[string]string, error) {
+	sql_readBanItems := `SELECT addr, name FROM ban;`
+
+	db, err := initAuthDB()
+	if err != nil {
+		return nil, err
+	}
+	defer db.Close()
+
+	stmt, err := db.Prepare(sql_readBanItems)
+	if err != nil {
+		return nil, err
+	}
+	defer stmt.Close()
+
+	rows, err := stmt.Query()
+	if err != nil {
+		return nil, err
+	}
+
+	r := make(map[string]string)
+
+	for rows.Next() {
+		var addr, name string
+		err = rows.Scan(&addr, &name)
+		r[addr] = name
+	}
+
+	return r, nil
+}
+
 // IsBanned reports whether a Peer is banned
 func (p *Peer) IsBanned() (bool, string, error) {
 	db, err := initAuthDB()
diff --git a/igutils.go b/igutils.go
index bc480f5..77848f7 100644
--- a/igutils.go
+++ b/igutils.go
@@ -362,6 +362,24 @@ func init() {
 			p.SendChatMsg("Privileges updated.")
 		})
 
+	RegisterChatCommand("banlist",
+		privs("ban"),
+		"Prints the list of banned IP address and associated players. Usage: banlist",
+		func(p *Peer, param string) {
+			bans, err := BanList()
+			if err != nil {
+				p.SendChatMsg("An internal error occured while attempting to read the ban list.")
+				return
+			}
+
+			msg := "Address | Name\n"
+			for addr, name := range bans {
+				msg += addr + " | " + name + "\n"
+			}
+
+			p.SendChatMsg(msg)
+		})
+
 	RegisterChatCommand("ban",
 		privs("ban"),
 		"Bans an IP address or a connected player. Usage: ban <playername | IP address>",