MediaWiki:Gadget-md5hasher.js: Difference between revisions

window.gfUtils = window.gfUtils || {};

(function(globSpace){'use strict';function safe_add(x,y){var lsw=(x&0xFFFF)+(y&0xFFFF),msw=(x>>16)+(y>>16)+(lsw>>16);return(msw<<16)|(lsw&0xFFFF)}
function bit_rol(num,cnt){return(num<<cnt)|(num>>>(32-cnt))}
function md5_cmn(q,a,b,x,s,t){return safe_add(bit_rol(safe_add(safe_add(a,q),safe_add(x,t)),s),b)}
function md5_ff(a,b,c,d,x,s,t){return md5_cmn((b&c)|((~b)&d),a,b,x,s,t)}
function md5_gg(a,b,c,d,x,s,t){return md5_cmn((b&d)|(c&(~d)),a,b,x,s,t)}
function md5_hh(a,b,c,d,x,s,t){return md5_cmn(b^c^d,a,b,x,s,t)}
function md5_ii(a,b,c,d,x,s,t){return md5_cmn(c^(b|(~d)),a,b,x,s,t)}
function binl_md5(x,len){x[len>>5]|=0x80<<((len)%32);x[(((len+64)>>>9)<<4)+14]=len;var i,olda,oldb,oldc,oldd,a=1732584193,b=-271733879,c=-1732584194,d=271733878;for(i=0;i<x.length;i+=16){olda=a;oldb=b;oldc=c;oldd=d;a=md5_ff(a,b,c,d,x[i],7,-680876936);d=md5_ff(d,a,b,c,x[i+1],12,-389564586);c=md5_ff(c,d,a,b,x[i+2],17,606105819);b=md5_ff(b,c,d,a,x[i+3],22,-1044525330);a=md5_ff(a,b,c,d,x[i+4],7,-176418897);d=md5_ff(d,a,b,c,x[i+5],12,1200080426);c=md5_ff(c,d,a,b,x[i+6],17,-1473231341);b=md5_ff(b,c,d,a,x[i+7],22,-45705983);a=md5_ff(a,b,c,d,x[i+8],7,1770035416);d=md5_ff(d,a,b,c,x[i+9],12,-1958414417);c=md5_ff(c,d,a,b,x[i+10],17,-42063);b=md5_ff(b,c,d,a,x[i+11],22,-1990404162);a=md5_ff(a,b,c,d,x[i+12],7,1804603682);d=md5_ff(d,a,b,c,x[i+13],12,-40341101);c=md5_ff(c,d,a,b,x[i+14],17,-1502002290);b=md5_ff(b,c,d,a,x[i+15],22,1236535329);a=md5_gg(a,b,c,d,x[i+1],5,-165796510);d=md5_gg(d,a,b,c,x[i+6],9,-1069501632);c=md5_gg(c,d,a,b,x[i+11],14,643717713);b=md5_gg(b,c,d,a,x[i],20,-373897302);a=md5_gg(a,b,c,d,x[i+5],5,-701558691);d=md5_gg(d,a,b,c,x[i+10],9,38016083);c=md5_gg(c,d,a,b,x[i+15],14,-660478335);b=md5_gg(b,c,d,a,x[i+4],20,-405537848);a=md5_gg(a,b,c,d,x[i+9],5,568446438);d=md5_gg(d,a,b,c,x[i+14],9,-1019803690);c=md5_gg(c,d,a,b,x[i+3],14,-187363961);b=md5_gg(b,c,d,a,x[i+8],20,1163531501);a=md5_gg(a,b,c,d,x[i+13],5,-1444681467);d=md5_gg(d,a,b,c,x[i+2],9,-51403784);c=md5_gg(c,d,a,b,x[i+7],14,1735328473);b=md5_gg(b,c,d,a,x[i+12],20,-1926607734);a=md5_hh(a,b,c,d,x[i+5],4,-378558);d=md5_hh(d,a,b,c,x[i+8],11,-2022574463);c=md5_hh(c,d,a,b,x[i+11],16,1839030562);b=md5_hh(b,c,d,a,x[i+14],23,-35309556);a=md5_hh(a,b,c,d,x[i+1],4,-1530992060);d=md5_hh(d,a,b,c,x[i+4],11,1272893353);c=md5_hh(c,d,a,b,x[i+7],16,-155497632);b=md5_hh(b,c,d,a,x[i+10],23,-1094730640);a=md5_hh(a,b,c,d,x[i+13],4,681279174);d=md5_hh(d,a,b,c,x[i],11,-358537222);c=md5_hh(c,d,a,b,x[i+3],16,-722521979);b=md5_hh(b,c,d,a,x[i+6],23,76029189);a=md5_hh(a,b,c,d,x[i+9],4,-640364487);d=md5_hh(d,a,b,c,x[i+12],11,-421815835);c=md5_hh(c,d,a,b,x[i+15],16,530742520);b=md5_hh(b,c,d,a,x[i+2],23,-995338651);a=md5_ii(a,b,c,d,x[i],6,-198630844);d=md5_ii(d,a,b,c,x[i+7],10,1126891415);c=md5_ii(c,d,a,b,x[i+14],15,-1416354905);b=md5_ii(b,c,d,a,x[i+5],21,-57434055);a=md5_ii(a,b,c,d,x[i+12],6,1700485571);d=md5_ii(d,a,b,c,x[i+3],10,-1894986606);c=md5_ii(c,d,a,b,x[i+10],15,-1051523);b=md5_ii(b,c,d,a,x[i+1],21,-2054922799);a=md5_ii(a,b,c,d,x[i+8],6,1873313359);d=md5_ii(d,a,b,c,x[i+15],10,-30611744);c=md5_ii(c,d,a,b,x[i+6],15,-1560198380);b=md5_ii(b,c,d,a,x[i+13],21,1309151649);a=md5_ii(a,b,c,d,x[i+4],6,-145523070);d=md5_ii(d,a,b,c,x[i+11],10,-1120210379);c=md5_ii(c,d,a,b,x[i+2],15,718787259);b=md5_ii(b,c,d,a,x[i+9],21,-343485551);a=safe_add(a,olda);b=safe_add(b,oldb);c=safe_add(c,oldc);d=safe_add(d,oldd)}
return[a,b,c,d]}
function binl2rstr(input){var i,output='';for(i=0;i<input.length*32;i+=8){output+=String.fromCharCode((input[i>>5]>>>(i%32))&0xFF)}
return output}
function rstr2binl(input){var i,output=[];output[(input.length>>2)-1]=undefined;for(i=0;i<output.length;i+=1){output[i]=0}
for(i=0;i<input.length*8;i+=8){output[i>>5]|=(input.charCodeAt(i/8)&0xFF)<<(i%32)}
return output}
function rstr_md5(s){return binl2rstr(binl_md5(rstr2binl(s),s.length*8))}
function rstr_hmac_md5(key,data){var i,bkey=rstr2binl(key),ipad=[],opad=[],hash;ipad[15]=opad[15]=undefined;if(bkey.length>16){bkey=binl_md5(bkey,key.length*8)}
for(i=0;i<16;i+=1){ipad[i]=bkey[i]^0x36363636;opad[i]=bkey[i]^0x5C5C5C5C}
hash=binl_md5(ipad.concat(rstr2binl(data)),512+data.length*8);return binl2rstr(binl_md5(opad.concat(hash),512+128))}
function rstr2hex(input){var hex_tab='0123456789abcdef',output='',x,i;for(i=0;i<input.length;i+=1){x=input.charCodeAt(i);output+=hex_tab.charAt((x>>>4)&0x0F)+hex_tab.charAt(x&0x0F)}
return output}
function str2rstr_utf8(input){return unescape(encodeURIComponent(input))}
function raw_md5(s){return rstr_md5(str2rstr_utf8(s))}
function hex_md5(s){return rstr2hex(raw_md5(s))}
function raw_hmac_md5(k,d){return rstr_hmac_md5(str2rstr_utf8(k),str2rstr_utf8(d))}
function hex_hmac_md5(k,d){return rstr2hex(raw_hmac_md5(k,d))}
globSpace.md5=function(string,key,raw){if(!key){if(!raw){return hex_md5(string)}else{return raw_md5(string)}}
if(!raw){return hex_hmac_md5(key,string)}else{return raw_hmac_md5(key,string)}}}(window.gfUtils))

window.gfUtils.createWikiPathPart = function createPathPart(filename) {
  var hash = window.gfUtils.md5(decodeURIComponent(filename));
  return hash[0] + "/" + hash[0] + hash[1] + "/";
};

var createSliderButtonCounter = 0;
window.gfUtils.createSliderButton = function createSliderButton(iconUrl, eventHandler) {


  var idForThisButton = "dormSliderIdent" + createSliderButtonCounter;
  createSliderButtonCounter = createSliderButtonCounter + 1;

  var dormInput = $('<input></input>');
  dormInput.attr('type', "checkbox");
  dormInput.attr('value', "None");
  dormInput.attr('name', "check");
  dormInput.attr('id', idForThisButton);
  dormInput.change(eventHandler);
                
  var dormSpanOn = $('<span></span >');
  dormSpanOn.addClass('texton');
  dormSpanOn.text('ON');
                
  var dormLabel = $('<label></label>');
  dormLabel.attr('for', idForThisButton);
                
  var dormSpanOff = $('<span></span >');
  dormSpanOff.addClass('textoff');
  dormSpanOff.text('OFF');
                
  var dormSlidebutton = $('<div></div>');
  dormSlidebutton.addClass('slideButton');
  dormSlidebutton.append(dormSpanOn);
  dormSlidebutton.append(dormLabel);
  dormSlidebutton.append(dormSpanOff);
                
  var dormSwitcher = $('<div></div>');
  dormSwitcher.addClass('chibiDormSwitcher');
  dormSwitcher.append(dormInput);
  dormSwitcher.append(dormSlidebutton);
  
  return dormSwitcher;
};

window.gfUtils.base64ArrayBuffer = function base64ArrayBuffer(arrayBuffer) {
  var base64    = '';
  var encodings = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';

  var bytes         = new Uint8Array(arrayBuffer);
  var byteLength    = bytes.byteLength;
  var byteRemainder = byteLength % 3;
  var mainLength    = byteLength - byteRemainder;

  var a, b, c, d;
  var chunk;

  var i;
  // Main loop deals with bytes in chunks of 3
  for (i = 0; i < mainLength; i = i + 3) {
    // Combine the three bytes into a single integer
    chunk = (bytes[i] << 16) | (bytes[i + 1] << 8) | bytes[i + 2];

    // Use bitmasks to extract 6-bit segments from the triplet
    a = (chunk & 16515072) >> 18; // 16515072 = (2^6 - 1) << 18;
    b = (chunk & 258048)   >> 12; // 258048   = (2^6 - 1) << 12;
    c = (chunk & 4032)     >>  6; // 4032     = (2^6 - 1) << 6;
    d = chunk & 63              ; // 63       = 2^6 - 1;

    // Convert the raw binary segments to the appropriate ASCII encoding
    base64 += encodings[a] + encodings[b] + encodings[c] + encodings[d];
  }

  // Deal with the remaining bytes and padding
  if (byteRemainder == 1) {
    chunk = bytes[mainLength];

    a = (chunk & 252) >> 2; // 252 = (2^6 - 1) << 2;

    // Set the 4 least significant bits to zero
    b = (chunk & 3)   << 4; // 3   = 2^2 - 1;

    base64 += encodings[a] + encodings[b] + '==';
  } else if (byteRemainder == 2) {
    chunk = (bytes[mainLength] << 8) | bytes[mainLength + 1];

    a = (chunk & 64512) >> 10; // 64512 = (2^6 - 1) << 10;
    b = (chunk & 1008)  >>  4; // 1008  = (2^6 - 1) << 4;

    // Set the 2 least significant bits to zero
    c = (chunk & 15)    <<  2; // 15    = 2^4 - 1;

    base64 += encodings[a] + encodings[b] + encodings[c] + '=';
  }

  return base64;
};

/* =========== Widget functions */

/* ----------- ICSGenerator*/

/* Hashing as seen on https://stackoverflow.com/a/52171480 */
window.iopwidgets = window.iopwidgets || {};
window.iopwidgets.ICSGenerator = window.iopwidgets.ICSGenerator || {};
window.iopwidgets.ICSGenerator.cyrb53 = function(str, seedRaw) {
    var seed = seedRaw || 0;
    var h1 = 0xdeadbeef ^ seed, h2 = 0x41c6ce57 ^ seed;
    for (var i = 0, ch; i < str.length; i++) {
        ch = str.charCodeAt(i);
        h1 = Math.imul(h1 ^ ch, 2654435761);
        h2 = Math.imul(h2 ^ ch, 1597334677);
    }
    h1 = Math.imul(h1 ^ (h1>>>16), 2246822507) ^ Math.imul(h2 ^ (h2>>>13), 3266489909);
    h2 = Math.imul(h2 ^ (h2>>>16), 2246822507) ^ Math.imul(h1 ^ (h1>>>13), 3266489909);
    return 4294967296 * (2097151 & h2) + (h1>>>0);
};

window.iopwidgets.ICSGenerator.buildIcsLink = function(name, start, end) {
	var d= new Date();
	var currentDateString = d.getFullYear() + ("0"+(d.getMonth()+1)).slice(-2) + ("0" + d.getDate()).slice(-2) + "T"
	 + ("0" + d.getHours()).slice(-2) + ("0" + d.getMinutes()).slice(-2) + ("0" + d.getSeconds()).slice(-2);

	var hash = cyrb53("" + name + start + end);

	var icsContent = "BEGIN:VCALENDAR\r\n";
	icsContent += "VERSION:2.0\r\n";
	icsContent += "PRODID:-//iopwiki.com//ICS Widget\r\n";
	icsContent += "CALSCALE:GREGORIAN\r\n";
	icsContent += "BEGIN:VEVENT\r\n";
	icsContent += "DTSTAMP:" + currentDateString + "\r\n";
	icsContent += "UID:" + hash + "\r\n";
	icsContent += "DTSTART;TZID=Etc/UTC:" + start + "\r\n";
	icsContent += "DTEND;TZID=Etc/UTC:" + end + "\r\n";
	icsContent += "SUMMARY:" + name + "\r\n";
	icsContent += "END:VEVENT\r\n";
	icsContent += "END:VCALENDAR\r\n";
	
	var icsLink = document.createElement("a");
	icsLink.classList.add('ics-link');
	icsLink.setAttribute("href", "javascript:void(0);");
	icsLink.setAttribute("target", "_blank");
	icsLink.setAttribute("rel", "noopener");
	icsLink.setAttribute("tooltip", "Download iCal file");
	icsLink.setAttribute("download", "event.ics");
	icsLink.addEventListener('click', function(e) {
		var uriContent = "data:text/calendar," + encodeURIComponent(icsContent);
		e.target.href = uriContent;
	});
	
	var visibleText = document.createTextNode("Download iCal file");
	icsLink.appendChild(visibleText);
	
	var container = document.currentScript.parentNode;
	container.appendChild(icsLink);
};