From f9fdd496bf980dbfc467998e18eb1a44fea1432d Mon Sep 17 00:00:00 2001
From: Etzelia <etzelia@hotmail.com>
Date: Sun, 19 Jul 2020 22:04:45 -0500
Subject: [PATCH] Check for ban on register

Signed-off-by: Etzelia <etzelia@hotmail.com>
---
 config/config.go    |  1 +
 discord/register.go | 57 +++++++++++++++++++++++++++++++++++++++++----
 sedbot.example.toml |  3 +++
 3 files changed, 57 insertions(+), 4 deletions(-)

diff --git a/config/config.go b/config/config.go
index 8f45f89..3a4a1e5 100644
--- a/config/config.go
+++ b/config/config.go
@@ -15,6 +15,7 @@ type Config struct {
 	MCMToken string `toml:"mcm_token"`
 	MCMURL   string `toml:"mcm_url"`
 	DBPath   string `toml:"db_path"`
+	MCPath   string `toml:"mc_path"`
 
 	StaffRoles        []string      `toml:"staff_roles"`
 	Echoes            []Echo        `toml:"echoes"`
diff --git a/discord/register.go b/discord/register.go
index 9f5ff63..6d4c7a4 100644
--- a/discord/register.go
+++ b/discord/register.go
@@ -1,13 +1,20 @@
 package discord
 
 import (
+	"encoding/json"
 	"fmt"
+	"io/ioutil"
+	"path/filepath"
 	"strings"
 
+	"go.etztech.xyz/sedbot/config"
+
 	"go.etztech.xyz/go-mcm"
 	"go.etztech.xyz/go-mcm/model/django"
 )
 
+const bannedPlayersFile = "banned-players.json"
+
 func init() {
 	commands["register"] = command{
 		validate: func(cmd commandInit) bool {
@@ -19,17 +26,19 @@ func init() {
 				return "You must give this command your application username", nil
 			}
 
+			username := args[1]
+
 			sendTyping(cmd.session, cmd.message.ChannelID)
 
 			manager := mcm.NewMCM(cmd.config.MCMToken, cmd.config.MCMURL)
 			models := manager.NewModel()
 
-			players, err := models.Player(models.NewDjangoBuilder().IExact(django.PlayerUsername, args[1]))
+			players, err := models.Player(models.NewDjangoBuilder().IExact(django.PlayerUsername, username))
 			if err != nil {
 				return "", err
 			}
 
-			apps, err := models.Application(models.NewDjangoBuilder().IExact(django.ApplicationUsername, args[1]))
+			apps, err := models.Application(models.NewDjangoBuilder().IExact(django.ApplicationUsername, username))
 			if err != nil {
 				return "", err
 			}
@@ -37,9 +46,20 @@ func init() {
 			var nickname string
 			var accepted *bool
 			if len(players) > 0 {
-				nickname = players[0].Username
+				player := players[0]
+
+				// Check for a ban
+				ban, err := findBan(cmd.config, player.UUID)
+				if err != nil {
+					return "", err
+				}
+				if ban != nil {
+					return fmt.Sprintf("You are currently banned: **%s**", ban.Reason), nil
+				}
+
+				nickname = player.Username
 				if len(apps) == 0 {
-					apps, err = models.Application(models.NewDjangoBuilder().Eq(django.ApplicationID, players[0].ApplicationID))
+					apps, err = models.Application(models.NewDjangoBuilder().Eq(django.ApplicationID, player.ApplicationID))
 					if len(apps) == 0 {
 						return "Something went wrong, please contact staff", nil
 					}
@@ -74,3 +94,32 @@ func init() {
 		help: "Register yourself with the Discord",
 	}
 }
+
+type Ban struct {
+	UUID    string `json:"uuid"`
+	Name    string `json:"name"`
+	Created string `json:"created"`
+	Source  string `json:"source"`
+	Expires string `json:"expires"`
+	Reason  string `json:"reason"`
+}
+
+func findBan(cfg *config.Config, uuid string) (*Ban, error) {
+	banData, err := ioutil.ReadFile(filepath.Join(cfg.MCPath, bannedPlayersFile))
+	if err != nil {
+		return nil, err
+	}
+
+	var bans []*Ban
+	if err := json.Unmarshal(banData, &bans); err != nil {
+		return nil, err
+	}
+
+	for _, ban := range bans {
+		if uuid == ban.UUID {
+			return ban, nil
+		}
+	}
+
+	return nil, nil
+}
diff --git a/sedbot.example.toml b/sedbot.example.toml
index da547da..37d4bbf 100644
--- a/sedbot.example.toml
+++ b/sedbot.example.toml
@@ -13,6 +13,9 @@ mcm_url = ""
 # db_path is the path to the database (default is next to binary)
 db_path = "sedbot.db"
 
+# mc_path is the path to the root directory of the minecraft server
+mc_path = "/home/minecraft/server/"
+
 # fired_role is to check how many time Carolyn has been fired
 fired_role = "0"