Add captcha, auto generate config, and Spigot support

src/main/java/com/fpghoti/biscuit/user/PreUser.java

@@ -0,0 +1,120 @@
+package com.fpghoti.biscuit.user;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+import com.fpghoti.biscuit.Main;
+import com.fpghoti.biscuit.PluginCore;
+import com.fpghoti.biscuit.config.PropertiesRetrieval;
+import com.fpghoti.biscuit.util.Util;
+
+import net.dv8tion.jda.api.JDA;
+import net.dv8tion.jda.api.entities.Guild;
+import net.dv8tion.jda.api.entities.User;
+
+public class PreUser {
+
+	public static CopyOnWriteArrayList<PreUser> users = new CopyOnWriteArrayList<PreUser>();
+
+	public static PreUser getPreUser(User user) {
+		for(PreUser u : users) {
+			if(u.getUser().getId().equals(user.getId())) {
+				return u;
+			}
+		}
+		return null;
+	}
+
+	public static boolean preUserExists(User user) {
+		return getPreUser(user) != null;
+	}
+
+	private User user;
+	private String token;
+	private int timeLeft;
+	private boolean done;
+
+	public PreUser(User user) {
+		this.user = user;
+		this.token = null;
+		this.done = false;
+		this.timeLeft = PropertiesRetrieval.noCaptchaKickTime() + 1;
+		users.add(this);
+	}
+
+	public User getUser() {
+		return this.user;
+	}
+
+	public String getToken() {
+		return this.token;
+	}
+
+	//Going to use custom string gen for more char types in captcha
+	public void genToken() {
+		//token = Main.getBiscuit().getCage().getTokenGenerator().next();
+		token = Util.randomString(6);
+	}
+
+	public void setDone() {
+		this.done = true;
+	}
+
+	public void decrementTime() {
+		if(!shareGuild()) {
+			remove();
+			return;
+		}
+
+		if(!done) {
+			if(PropertiesRetrieval.noCaptchaKick()) {
+				timeLeft = timeLeft - 1;
+				if(timeLeft <= 0) {
+					for(Guild g : getGuilds()) {
+						Main.log.info(user.getName() + " " + user.getAsMention() + " waited too long to complete the captcha! Kicking...");
+						g.kick(user.getId()).queue();
+						remove();
+					}
+				}
+			}
+		}
+
+	}
+
+	public boolean shareGuild() {
+		JDA jda = Main.getBiscuit().getJDA();
+		for(Guild g : jda.getGuilds()) {
+			if(g.isMember(user)){
+				return true;
+			}
+		}
+		return false;
+	}
+
+	public ArrayList<Guild> getGuilds(){
+		ArrayList<Guild> guilds = new ArrayList<Guild>();
+		JDA jda = Main.getBiscuit().getJDA();
+		for(Guild g : jda.getGuilds()) {
+			if(g.isMember(user)){
+				guilds.add(g);
+			}
+		}
+		return guilds;
+	}
+
+	public void remove() {
+		setDone();
+		Main.log.info("Removing captcha data for user " + user.getName() + " " + user.getAsMention());
+		File captcha;
+		if(!Main.isPlugin) {
+			captcha = new File("captcha/" + user.getId() + ".jpg");
+		}else {
+			captcha = new File(PluginCore.plugin.getDataFolder(), "captcha/" + user.getId() + ".jpg");
+		}
+		token = null;
+		captcha.delete();
+		users.remove(this);
+	}
+
+}