WizardRunes.js

//======================================================================
// Author: 'Anonymous' fom 8 /pol/
//======================================================================
//       DO WHATEVER THE FUCK YOU WANT WITH IT PUBLIC LICENSE
//
// Everyone is permitted to copy and distribute verbatim or modified
// copies of this license document, and changing it is allowed as long
// as the name is changed.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
//
//      DO WHATEVER THE FUCK YOU WANT WANT WITH IT PUBLIC LICENSE
//   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
//
//  0. This is released into the PUBLIC DOMAIN.
//  1. You just DO WHATEVER THE FUCK YOU WANT WITH IT.
//======================================================================

// CLASS NAMES
//================================================================
var TWEETCONTAINTERNODE_CLASSNAME    = "js-tweet-text-container";
var TWEETSTREAMITEMFOOTER            = "stream-item-footer";
var TWEETSTREAMITEMHEADER            = "stream-item-header";

var TWEETBOXTOOLBAR_CLASSNAME        = "TweetBoxToolbar";
var TWEETBOXEXTRASITEM_CLASSNAME     = "TweetBoxExtras-item";
var TWEETBOXEXTRASDIV_CLASSNAME      = "WizardRuneMagicButton";
var TWEETREPLYBOXROOT_CLASSNAME      = "RichEditor-scrollContainer";


// STRINGS
//=================================================================
var ICONTWITTER_PATH                = "icons/icon_twitter.png";

// INDICES
//================================================================
var TWEETBOXTOOLBAREXTRAS_INDEX         = 0;
var TWEETBOXTOOLBAREXTRAS_INSERT_INDEX  = 4;

// INTERVALS
//================================================================
var REFRESH_INTERVAL_TIMER          = 550;

// LOOKUP
//================================================================
var LOOKUP_ALPHA_LOWER = [ "a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"];
var LOOKUP_ALPHA_UPPER = ["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"];
var LOOKUP_SYMBOLS_ALPHA_32_64 = [ "\u0020","\u0021","\u0022","\u0023","\u0024","\u0025","\u0026","\u0027","\u0028","\u0029","\u002A","\u002B","\u002C","\u002D","\u002E","\u002F","\u0030","\u0031","\u0032","\u0033","\u0034","\u0035","\u0036","\u0037","\u0038","\u0039","\u003A","\u003B","\u003C","\u003D","\u003E","\u003F","\u0040"];
var LOOKUP_SYMBOLS_ALPHA_91_96 = [ "\u005B","\u005C","\u005D","\u005E","\u005F","\u0060" ];
var LOOKUP_SYMBOLS_ALPHA_123_126 = [ "\u007B","\u007C","\u007D","\u007E" ];
var LOOKUP_RUNES = [ "\u05D0", "\u05D1", "\u05D2", "\u05D3", "\u05D4", "\u05D5", "\u05D6", "\u05D7", "\u05D8","\u05D9", "\u05DA", "\u05DB", "\u05DC", "\u05DD", "\u05DE", "\u05DF", "\u05E0","\u05E1", "\u05E2", "\u05E3", "\u05E4", "\u05E5", "\u05E6", "\u05E7", "\u05E8", "\u05E9" ];
var LOOKUP_RUNES_SYMBOLS_32_64 = ["\u0020","\u0461","\u0462","\u0463","\u0464","\u0465","\u0466","\u0467","\u0468","\u0469","\u046A","\u046B","\u046C","\u046D","\u046E","\u046F","\u0470","\u0471","\u0472","\u0473","\u0474","\u0475","\u0476","\u0477","\u0478","\u0479","\u047A","\u047B","\u047C","\u047D","\u047E","\u047F","\u0480"]; //1120-1152
var LOOKUP_RUNES_SYMBOLS_91_96 = ["\u03E2","\u03E3","\u03E4","\u03E5","\u03E6","\u03E7"]; //994-999
var LOOKUP_RUNES_SYMBOLS_123_126 = ["\u0447","\u0448","\u0449","\u044A"]; //1095-1098

var LOOKUP_RUNIC_ACCENT             = "\u059f";
var RUNIC_ACCENT_CODEPOINT          = 1439;
var ALPHA_MONEY_CODEPOINT           = 36;
var RUNIC_MONEY_CODEPOINT           = 8362;
var ALPHA_SPECIAL_NUMBER_CODEPOINT  = 54;
var RUNIC_SPECIAL_NUMBER_CODEPOINT  = 1161;
var RUNIC_CODEPOINT_OFFSET          = (2976 / 2);

// STATE
//================================================================
var bIsLogicTimerSet        = false;

// ENCRYPT / DECRYPT
//================================================================
function alphaToRunes(sValue)
{
    var sResult = "";
    for(it = 0; it < sValue.length; ++it)
    {
        var codePoint = (sValue.codePointAt(it));
        if((codePoint >= 65) && (codePoint <= 90))
        {
            sResult = sResult + LOOKUP_RUNES[codePoint - 65] + LOOKUP_RUNIC_ACCENT;
        }
        else if((codePoint >= 97) && (codePoint <= 122))
        {
            sResult = sResult + LOOKUP_RUNES[codePoint - 97];
        }
        else if(codePoint == ALPHA_MONEY_CODEPOINT)
        {
            sResult = sResult + String.fromCodePoint(RUNIC_MONEY_CODEPOINT);
        }
        else if(codePoint == ALPHA_SPECIAL_NUMBER_CODEPOINT)
        {
            sResult = sResult + String.fromCodePoint(RUNIC_SPECIAL_NUMBER_CODEPOINT);
        }
        else if((codePoint >= 32) && (codePoint <= 64))
        {
            sResult = sResult + LOOKUP_RUNES_SYMBOLS_32_64[(codePoint - 32)];
        }
        else if((codePoint >= 91) && (codePoint <= 96))
        {
            sResult = sResult + LOOKUP_RUNES_SYMBOLS_91_96[(codePoint - 91)];
        }
        else if((codePoint >= 123) && (codePoint <= 126))
        {
            sResult = sResult + LOOKUP_RUNES_SYMBOLS_123_126[(codePoint - 123)];
        }
        else
        {
            sResult = sResult + String.fromCodePoint(codePoint);
        }
    }
    return sResult;
}
function runesToAlpha(sValue)
{
    var sResult = "";
    var codePoint = 0;
    for(it = 0; it < sValue.length; ++it)
    {
        codePoint = sValue.codePointAt(it);
        if(((codePoint - RUNIC_CODEPOINT_OFFSET) >= 0) && ((codePoint - RUNIC_CODEPOINT_OFFSET) <= 25))
        {
            if(((it + 1) < sValue.length) && (sValue.codePointAt(it + 1) == RUNIC_ACCENT_CODEPOINT))
            {
                sResult = sResult + LOOKUP_ALPHA_UPPER[codePoint - RUNIC_CODEPOINT_OFFSET];
                it = it + 1;
            }
            else
            {
                sResult = sResult + LOOKUP_ALPHA_LOWER[codePoint - RUNIC_CODEPOINT_OFFSET];
            }
        }
        else if(codePoint == RUNIC_MONEY_CODEPOINT)
        {
            sResult = sResult + String.fromCodePoint(ALPHA_MONEY_CODEPOINT);
        }
        else if(codePoint == RUNIC_SPECIAL_NUMBER_CODEPOINT)
        {
            sResult = sResult + String.fromCodePoint(ALPHA_SPECIAL_NUMBER_CODEPOINT);
        }//1120-1152
        else if ((codePoint >= 1120) && (codePoint <= 1152))
        {
            sResult = sResult + LOOKUP_SYMBOLS_ALPHA_32_64[(codePoint - 1120)];
        }//994-999
        else if((codePoint >= 994) && (codePoint <= 999))
        {
            sResult = sResult + LOOKUP_SYMBOLS_ALPHA_91_96[(codePoint - 994)];
        }//1095-1098
        else if((codePoint >= 1095) && (codePoint <= 1098))
        {
            sResult = sResult + LOOKUP_SYMBOLS_ALPHA_123_126[(codePoint - 1095)];
        }
        else
        {
            if(codePoint != 10)
            {
                sResult = sResult + String.fromCodePoint(codePoint);
            }
        }
    }
    return sResult + " ";
}
function summonMagicRunes()
{
    var tweetBoxList = document.getElementsByClassName(TWEETREPLYBOXROOT_CLASSNAME);
    var tbl = 0;
    while(tbl < tweetBoxList.length)
    {
        var nodeList = tweetBoxList[tbl].children[0].childNodes;
        var current = null;
        var it = 0;
        while(it < nodeList.length)
        {
            current = nodeList[it];
            if((current.nodeType == Node.TEXT_NODE) && (current.data !== "undefined"))
            {
                current.data = alphaToRunes(current.data);
            }

            it = it + 1;
        }
        tbl = tbl + 1;
    }
}

// WRUIHandler
//======================================================================================================
function WRUIHandler(ttbNode)
{
    this.tbExtras   = null;
    this.tbItem     = null;
    this.tbDiv      = null;
    this.tbImage    = null;

    this.tbExtras = ttbNode.firstElementChild;

    this.tbItem = document.createElement('span');
    this.tbItem.setAttribute("class", TWEETBOXEXTRASITEM_CLASSNAME);
    this.tbExtras.insertBefore(this.tbItem, this.tbExtras.children[TWEETBOXTOOLBAREXTRAS_INSERT_INDEX]);

    this.tbDiv = document.createElement('div');
    this.tbDiv.setAttribute("class", TWEETBOXEXTRASDIV_CLASSNAME);
    this.tbDiv.style.backgroundImage = 'url(' + chrome.extension.getURL(ICONTWITTER_PATH) + ')';
    this.tbDiv.style.width = "32px";
    this.tbDiv.style.height = "32px";
    this.tbDiv.addEventListener("click", summonMagicRunes);
    this.tbItem.appendChild(this.tbDiv);

    this.shutDown = (function()
    {
        this.tbExtras.removeChild(this.tbItem);
    }).bind(this);
}

// CORE LOGIC
//=================================================================

function appendWizardUI()
{
    var tweetToolBar = document.getElementsByClassName(TWEETBOXTOOLBAR_CLASSNAME);
    if(tweetToolBar.length > 0)
    {
        for(it = 0; it < tweetToolBar.length; ++it)
        {
            var current = tweetToolBar[it];
            if(current.hasOwnProperty("wrUIHandler") === true)
            {
                current.wrUIHandler.shutDown();
                current.wrUIHandler = null;
            }

            current.wrUIHandler = new WRUIHandler(current);
        }
    }
}

function scanAndDecodeRunes()
{
    var listContent = document.getElementsByClassName(TWEETCONTAINTERNODE_CLASSNAME);
    if(listContent.length > 0)
    {
        var cContent        = null;
        var decryptState    = null;
        var it = 0;

        var cNodeList       = null;
        var cNode           = null;
        var nt = 0;
        while(it < listContent.length)
        {
            cContent = listContent[it];
            if(cContent !== "undefined")
            {
                if(cContent.hasOwnProperty("wrIsDecrypted"))
                {
                    decryptState = cContent.wrIsDecrypted;
                }
                else
                {
                    decryptState = false;
                }

                if(decryptState === false)
                {
                    cContent.children[0].setAttribute("lang", "en");
                    cNodeList = cContent.children[0].childNodes;
                    nt = 0;
                    while(nt < cNodeList.length)
                    {
                        cNode = cNodeList[nt];
                        if((cNode.nodeType == Node.TEXT_NODE) && (cNode.data !== "undefined"))
                        {
                            cNode.data = runesToAlpha(cNode.data);
                        }

                        nt = nt + 1;
                    }
                    cContent.wrIsDecrypted = true;
                }
            }
            it = it + 1;
        }
    }
}

// STATE MANAGEMENT
//=================================================================
function onLogicTimer()
{
    if(bIsLogicTimerSet === true)
    {
        bIsLogicTimerSet = false;
        scanAndDecodeRunes();
        appendWizardUI();
    }
}

function trySetLogicTimer()
{
    if(bIsLogicTimerSet === false)
    {
        bIsLogicTimerSet = true;
        window.setTimeout(onLogicTimer, Math.floor((Math.random() * REFRESH_INTERVAL_TIMER) + REFRESH_INTERVAL_TIMER));
    }
}

function isElementRelevantForUpdate(element)
{
    if(element !== null)
    {
        var klass = element.getAttribute("class");

        if(TWEETCONTAINTERNODE_CLASSNAME == klass)
        {
            return true;
        }

        if(TWEETSTREAMITEMFOOTER == klass)
        {
            return true;
        }

        if(TWEETSTREAMITEMHEADER == klass)
        {
            return true;
        }

        if(TWEETREPLYBOXROOT_CLASSNAME  == klass)
        {
            return true;
        }

        if(element.parentElement !== null)
        {
            klass = element.parentElement.getAttribute("class");

            if(TWEETCONTAINTERNODE_CLASSNAME == klass)
            {
                return true;
            }

            if(TWEETSTREAMITEMFOOTER == klass)
            {
                return true;
            }

            if(TWEETSTREAMITEMHEADER == klass)
            {
                return true;
            }

            if(TWEETREPLYBOXROOT_CLASSNAME  == klass)
            {
                return true;
            }
        }
    }

    return false;
}

function onClick(e)
{
    if((e.target === null) || (e.target.parentElement === null))
    {
        return;
    }

    if(isElementRelevantForUpdate(e.target))
    {
        trySetLogicTimer();
    }
}

function initialize()
{
    // CLASS NAMES
    //================================================================
    TWEETCONTAINTERNODE_CLASSNAME    = "js-tweet-text-container";
    TWEETSTREAMITEMFOOTER            = "stream-item-footer";
    TWEETSTREAMITEMHEADER            = "stream-item-header";

    TWEETBOXTOOLBAR_CLASSNAME        = "TweetBoxToolbar";
    TWEETBOXEXTRASITEM_CLASSNAME     = "TweetBoxExtras-item";
    TWEETBOXEXTRASDIV_CLASSNAME      = "WizardRuneMagicButton";
    TWEETREPLYBOXROOT_CLASSNAME      = "RichEditor-scrollContainer";


    // STRINGS
    //=================================================================
    ICONTWITTER_PATH                = "icons/icon_twitter.png";

    // INDICES
    //================================================================
    TWEETBOXTOOLBAREXTRAS_INDEX         = 0;
    TWEETBOXTOOLBAREXTRAS_INSERT_INDEX  = 4;

    // INTERVALS
    //================================================================
    REFRESH_INTERVAL_TIMER          = 550;

    // LOOKUP
    //================================================================
    LOOKUP_ALPHA_LOWER = [ "a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"];
    LOOKUP_ALPHA_UPPER = ["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"];
    LOOKUP_SYMBOLS_ALPHA_32_64 = [ "\u0020","\u0021","\u0022","\u0023","\u0024","\u0025","\u0026","\u0027","\u0028","\u0029","\u002A","\u002B","\u002C","\u002D","\u002E","\u002F","\u0030","\u0031","\u0032","\u0033","\u0034","\u0035","\u0036","\u0037","\u0038","\u0039","\u003A","\u003B","\u003C","\u003D","\u003E","\u003F","\u0040"];
    LOOKUP_SYMBOLS_ALPHA_91_96 = [ "\u005B","\u005C","\u005D","\u005E","\u005F","\u0060" ];
    LOOKUP_SYMBOLS_ALPHA_123_126 = [ "\u007B","\u007C","\u007D","\u007E" ];
    LOOKUP_RUNES = [ "\u05D0", "\u05D1", "\u05D2", "\u05D3", "\u05D4", "\u05D5", "\u05D6", "\u05D7", "\u05D8","\u05D9", "\u05DA", "\u05DB", "\u05DC", "\u05DD", "\u05DE", "\u05DF", "\u05E0","\u05E1", "\u05E2", "\u05E3", "\u05E4", "\u05E5", "\u05E6", "\u05E7", "\u05E8", "\u05E9" ];
    LOOKUP_RUNES_SYMBOLS_32_64 = ["\u0020","\u0461","\u0462","\u0463","\u0464","\u0465","\u0466","\u0467","\u0468","\u0469","\u046A","\u046B","\u046C","\u046D","\u046E","\u046F","\u0470","\u0471","\u0472","\u0473","\u0474","\u0475","\u0476","\u0477","\u0478","\u0479","\u047A","\u047B","\u047C","\u047D","\u047E","\u047F","\u0480"];
    LOOKUP_RUNES_SYMBOLS_91_96 = ["\u03E2","\u03E3","\u03E4","\u03E5","\u03E6","\u03E7"];
    LOOKUP_RUNES_SYMBOLS_123_126 = ["\u0447","\u0448","\u0449","\u044A"];

    LOOKUP_RUNIC_ACCENT             = "\u059f";
    RUNIC_ACCENT_CODEPOINT          = 1439;
    ALPHA_MONEY_CODEPOINT           = 36;
    RUNIC_MONEY_CODEPOINT           = 8362;
    ALPHA_SPECIAL_NUMBER_CODEPOINT  = 54;
    RUNIC_SPECIAL_NUMBER_CODEPOINT  = 1161;
    RUNIC_CODEPOINT_OFFSET          = (2976 / 2);

    document.addEventListener("wheel", trySetLogicTimer);
    document.addEventListener("scroll", trySetLogicTimer);
    window.addEventListener("click", onClick);
    window.addEventListener("focus", trySetLogicTimer);

    window.addEventListener("pageshow", initialize);
    window.addEventListener("hashchange", initialize);
    trySetLogicTimer();
}

initialize();