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demichrome4.js
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/*
* Author: demi6od <[email protected]>
* Date: 2013 Oct 21st
*
* Note: the fuzzer is designed to run using Grinder Framework, if you want to run it without using Grinder:
* - remove all dependencies of logger element
*/
// Global object for namespace
var demicm = {};
// Use id[] to reference elements
var id = [];
demicm.idBlackList = [];
// Id offset for non-elem object
demicm.SPEC_OFFSET = 2000;
demicm.RET_OFFSET = 3000;
// Special object
var idS = [];
demicm.rangeId = 0; // range
demicm.selId = 1; // selection
demicm.niId = 2; // nodeIterator
demicm.twId = 3; // treeWalker
demicm.curItrNodeId = 4; // currentIterateNode
demicm.curTreeNodeId = 5; // currentTreeNode
demicm.styleId = 6;
demicm.relayoutId = 7;
demicm.docId = 8;
demicm.winId = 9;
demicm.attrId = 10;
demicm.nodeMapId = 11;
// Prop or func return object
var idR = [];
// Ret object tag kinds
demicm.tagRs = [];
// Fuzzer type
demicm.IS_DEBUG = false;
demicm.IS_LOG_DEBUG = false;
demicm.IS_FUZZ_RANGE = true;
demicm.IS_FUZZ_SPEC = true;
// Fuzzer status
demicm.fuzzStat = 'start';
// DOM Tree initial
demicm.HEAD_CHILD_NUM = 8;
demicm.BODY_CHILD_NUM = 20;
demicm.FRAG_ELEM_NUM = 5; // Dangling element
demicm.BRANCH_NUM = 3;
demicm.TEXT_NUM = 5;
demicm.FREE_TEXT_NUM = 15; // No reference textNode
demicm.EVENT_ELEM_NUM = 36; // Elems num to set event, less than elemNum
demicm.EVENT_NUM = 30; // Event num for per elem
demicm.CSS_DIVERSE_NUM = 3; // 3
// Heap spray params
demicm.ARRAY_LEN_MAX = 100;
demicm.ARRAY_CNT = 50; // Spray count
// Operate number
demicm.FRONT_OP_CNT = 30; // 30 | 60
demicm.BACK_OP_CNT = 20; // 20 | 40
demicm.EVENT_OP_CNT = 10; // 10 | 20
// Operate rate: n%(n = 0~100) probability to run
demicm.PROP_PER = 50; // 50
demicm.FUNC_PER = 40; // 40
demicm.STYLE_PER = 40; // 40
demicm.RET_PER = 80; // 80
demicm.LAYOUT_PER = 10; // 10
demicm.CLEAR_PER = 10; // 10
demicm.CLEAR_ALL_PER = 3; // 3
demicm.DOM_PER = 50; // 50
demicm.GC_PER = 20; // 20
demicm.WIN_DOC_PER = 20; // 20
demicm.ATTR_PER = 100; // 100
demicm.SET_ATTR_PER = 20; // 20
demicm.MOVE_ITR_PER = 80; // 80
demicm.MOVE_TREE_PER = 80; // 80
demicm.SET_ELEM_RANGE_PER = 20; // 20
demicm.ALTER_ELEM_RANGE_PER = 80; // 80
demicm.SET_SELECTION_PER = 20; // 20
demicm.ALTER_SELECTION_PER = 80; // 80
demicm.EVENT_OP_PER = 50; // 50 | 60
demicm.EVENT_CLEAR_PER = 60; // 60 | 80
demicm.EVENT_CLEAR_ALL_PER = 20; // 20 | 30
// Property and function rate
demicm.PROP_DIRTY_PER = 20; // 20
demicm.PROP_NORMAL_PER = 80; // 80
demicm.PROP_RANDOM_PER = 60; // 60
demicm.FUNC_DIRTY_PER = 20;
demicm.FUNC_NORMAL_PER = 80;
demicm.FUNC_RANDOM_PER = 60;
// Max recursion level
demicm.MAX_REC_DEPTH = 3; // 3
demicm.MAX_RET_REC_DEPTH = 3; // 3
demicm.MAX_REC_WIDE_CNT = 500; // 500
demicm.MAX_REC_WIDE = 50; // 50
demicm.MAX_LOOP = 100 // 100
demicm.MAX_ARR_LOOP = 1 // 1
demicm.MAX_ITR = 10 // 10
demicm.MAX_RET_ARR_CNT = 50 // 50
demicm.SPECIAL_FUNC_PARAM_NUM = 4; // 4
/************************************* range *************************************/
function constructNodeIterator() {
try {
var rId = randId('doc');
if (rId == 'none') {
return;
}
console.log('id_' + (demicm.niId + demicm.SPEC_OFFSET)
+ ' = document.createNodeIterator(id_' + rId + ', NodeFilter.SHOW_ALL, null, false);');
idS[demicm.niId] = document.createNodeIterator(id[rId], NodeFilter.SHOW_ALL, null, false);
} catch(e) {
console.log('// Error: constructNodeIterator: ' + e.message);
}
}
function constructTreeWalker() {
try {
var rId = randId('doc');
if (rId == 'none') {
return;
}
console.log('id_' + (demicm.twId + demicm.SPEC_OFFSET)
+ ' = document.createTreeWalker(id_' + rId + ', NodeFilter.SHOW_ALL, null, false);');
idS[demicm.twId] = document.createTreeWalker(id[rId], NodeFilter.SHOW_ALL, null, false);
} catch(e) {
console.log('// Error: constructTreeWalker: ' + e.message);
}
}
function constructRange() {
try {
console.log('id_' + (demicm.rangeId + demicm.SPEC_OFFSET) + ' = document.createRange();');
idS[demicm.rangeId] = document.createRange();
setRange();
} catch(e) {
console.log('// Error: constructRange: ' + e.message);
}
}
function setRange() {
if (demicm.IS_DEBUG) {
console.log('[+] setRange()');
}
try {
var rId = randId('doc');
if (rId == 'none') {
return;
}
console.log('id_' + (demicm.rangeId + demicm.SPEC_OFFSET) + '.setStart(id_' + rId + ', 0);');
idS[demicm.rangeId].setStart(id[rId], 0);
rId = randId('doc');
if (rId == 'none') {
return;
}
console.log('id_' + (demicm.rangeId + demicm.SPEC_OFFSET) + '.setEnd(id_' + rId + ', 0);');
idS[demicm.rangeId].setEnd(id[rId], 0);
} catch(e) {
console.log('// Error: setRange: ' + e.message);
}
}
function constructSelection() {
try {
console.log('id_' + (demicm.selId + demicm.SPEC_OFFSET) + ' = window.getSelection();');
idS[demicm.selId] = window.getSelection();
setSelection();
} catch(e) {
console.log('// Error: constructSelection: ' + e.message);
}
}
function setSelection() {
if (demicm.IS_DEBUG) {
console.log('[+] setSelection()');
}
try {
var rId = randId('doc');
if (rId == 'none') {
return;
}
console.log('id_' + (demicm.rangeId + demicm.SPEC_OFFSET) + '.selectNodeContents(id_' + rId + ');');
idS[demicm.rangeId].selectNodeContents(id[rId]);
console.log('id_' + (demicm.selId + demicm.SPEC_OFFSET) + '.removeAllRanges();');
idS[demicm.selId].removeAllRanges();
console.log('id_' + (demicm.selId + demicm.SPEC_OFFSET)
+ '.addRange(id_' + (demicm.rangeId + demicm.SPEC_OFFSET) + ');');
idS[demicm.selId].addRange(idS[demicm.rangeId]);
} catch(e) {
console.log('// Error: setSelection: ' + e.message);
}
}
function nodeIteration() {
if (demicm.IS_DEBUG) {
console.log('[+] nodeIteration()');
}
try {
// Fuzz current node
console.log('id_' + (demicm.curItrNodeId + demicm.SPEC_OFFSET)
+ ' = id_' + (demicm.niId + demicm.SPEC_OFFSET) + '.referenceNode;');
idS[demicm.curItrNodeId] = idS[demicm.niId].referenceNode;
if (idS[demicm.curItrNodeId]) {
propfMan([demicm.curItrNodeId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'prop', 'spec');
propfMan([demicm.curItrNodeId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'func', 'spec');
}
// Iterate from root to end
console.log('id_' + (demicm.curItrNodeId + demicm.SPEC_OFFSET) + ' = id_' + (demicm.niId + demicm.SPEC_OFFSET) + '.root;');
idS[demicm.curItrNodeId] = idS[demicm.niId].root;
var count = 0;
while (idS[demicm.curItrNodeId] && count < demicm.MAX_ITR) {
propfMan([demicm.curItrNodeId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'prop', 'spec');
propfMan([demicm.curItrNodeId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'func', 'spec');
console.log('id_' + (demicm.curItrNodeId + demicm.SPEC_OFFSET)
+ ' = id_' + (demicm.niId + demicm.SPEC_OFFSET) + '.nextNode();');
idS[demicm.curItrNodeId] = idS[demicm.niId].nextNode();
count++;
}
} catch(e) {
console.log('// Error: nodeIteration: ' + e.message);
}
}
function treeIteration() {
if (demicm.IS_DEBUG) {
console.log('[+] treeIteration()');
}
try {
// Fuzz current node
console.log('id_' + (demicm.curTreeNodeId + demicm.SPEC_OFFSET)
+ ' = id_' + (demicm.twId + demicm.SPEC_OFFSET) + '.currentNode;');
idS[demicm.curTreeNodeId] = idS[demicm.twId].currentNode;
if (idS[demicm.curTreeNodeId]) {
propfMan([demicm.curTreeNodeId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'prop', 'spec');
propfMan([demicm.curTreeNodeId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'func', 'spec');
}
// Iterate from root to end
console.log('id_' + (demicm.curTreeNodeId + demicm.SPEC_OFFSET)
+ ' = id_' + (demicm.twId + demicm.SPEC_OFFSET) + '.root;');
idS[demicm.curTreeNodeId] = idS[demicm.twId].root;
var count = 0;
while (idS[demicm.curTreeNodeId] && count < demicm.MAX_ITR) {
propfMan([demicm.curTreeNodeId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'prop', 'spec');
propfMan([demicm.curTreeNodeId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'func', 'spec');
console.log('id_' + (demicm.curTreeNodeId + demicm.SPEC_OFFSET)
+ ' = id_' + (demicm.twId + demicm.SPEC_OFFSET) + '.nextNode();');
idS[demicm.curTreeNodeId] = idS[demicm.twId].nextNode();
count++;
}
} catch(e) {
console.log('// Error: treeIteration: ' + e.message);
}
}
function moveIterator() {
if (demicm.IS_DEBUG) {
console.log('[+] moveIterator()');
}
try {
var rMoves = rand(3) + 1;
for (var i = 0; i < rMoves; i++) {
switch (rand(2)) {
case 0:
console.log('id_' + (demicm.curItrNodeId + demicm.SPEC_OFFSET)
+ ' = id_' + (demicm.niId + demicm.SPEC_OFFSET) + '.nextNode();');
idS[demicm.curItrNodeId] = idS[demicm.niId].nextNode();
break;
case 1:
console.log('id_' + (demicm.curItrNodeId + demicm.SPEC_OFFSET)
+ ' = id_' + (demicm.niId + demicm.SPEC_OFFSET) + '.previousNode();');
idS[demicm.curItrNodeId] = idS[demicm.niId].previousNode();
break;
}
propfMan([demicm.niId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'prop', 'spec');
}
if (idS[demicm.curItrNodeId]) {
propfMan([demicm.curItrNodeId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'prop', 'spec');
propfMan([demicm.curItrNodeId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'func', 'spec');
}
} catch(e) {
console.log('// Error: moveIterator: ' + e.message);
}
}
function moveTreeWalker() {
if (demicm.IS_DEBUG) {
console.log('[+] moveTreeWalker()');
}
try {
var rMoves = rand(3) + 1;
for (var i = 0; i < rMoves; i++) {
switch (rand(7)) {
case 0:
console.log('id_' + (demicm.curTreeNodeId + demicm.SPEC_OFFSET)
+ ' = id_' + (demicm.twId + demicm.SPEC_OFFSET) + '.nextNode();');
idS[demicm.curTreeNodeId] = idS[demicm.twId].nextNode();
break;
case 1:
console.log('id_' + (demicm.curTreeNodeId + demicm.SPEC_OFFSET)
+ ' = id_' + (demicm.twId + demicm.SPEC_OFFSET) + '.previousNode();');
idS[demicm.curTreeNodeId] = idS[demicm.twId].previousNode();
break;
case 2:
console.log('id_' + (demicm.curTreeNodeId + demicm.SPEC_OFFSET)
+ ' = id_' + (demicm.twId + demicm.SPEC_OFFSET) + '.previousSibling();');
idS[demicm.curTreeNodeId] = idS[demicm.twId].previousSibling();
break;
case 3:
console.log('id_' + (demicm.curTreeNodeId + demicm.SPEC_OFFSET)
+ ' = id_' + (demicm.twId + demicm.SPEC_OFFSET) + '.nextSibling();');
idS[demicm.curTreeNodeId] = idS[demicm.twId].nextSibling();
break;
case 4:
console.log('id_' + (demicm.curTreeNodeId + demicm.SPEC_OFFSET)
+ ' = id_' + (demicm.twId + demicm.SPEC_OFFSET) + '.firstChild();');
idS[demicm.curTreeNodeId] = idS[demicm.twId].firstChild();
break;
case 5:
console.log('id_' + (demicm.curTreeNodeId + demicm.SPEC_OFFSET)
+ ' = id_' + (demicm.twId + demicm.SPEC_OFFSET) + '.lastChild();');
idS[demicm.curTreeNodeId] = idS[demicm.twId].lastChild();
break;
case 6:
console.log('id_' + (demicm.curTreeNodeId + demicm.SPEC_OFFSET)
+ ' = id_' + (demicm.twId + demicm.SPEC_OFFSET) + '.parentNode();');
idS[demicm.curTreeNodeId] = idS[demicm.twId].parentNode();
break;
}
propfMan([demicm.twId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'prop', 'spec');
}
if (idS[demicm.curTreeNodeId]) {
propfMan([demicm.curTreeNodeId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'prop', 'spec');
propfMan([demicm.curTreeNodeId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'func', 'spec');
}
} catch(e) {
console.log('// Error: moveTreeWalker: ' + e.message);
}
}
function alterRange() {
if (demicm.IS_DEBUG) {
console.log('[+] alterRange()');
}
try {
propfMan([demicm.rangeId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'prop', 'spec');
propfMan([demicm.rangeId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'func', 'spec');
var rId = randId('doc');
if (rId == 'none') {
return;
}
switch (rand(4)) {
case 0:
console.log('var documentFragment = id_' + (demicm.rangeId + demicm.SPEC_OFFSET) + '.cloneContents();');
var documentFragment = idS[demicm.rangeId].cloneContents();
console.log('id_' + rId + '.appendChild(documentFragment);');
id[rId].appendChild(documentFragment);
console.log('documentFragment = null;');
break;
case 1:
console.log('var documentFragment = id_' + (demicm.rangeId + demicm.SPEC_OFFSET) + '.extractContents();');
var documentFragment = idS[demicm.rangeId].extractContents();
console.log('id_' + rId + '.appendChild(documentFragment);');
id[rId].appendChild(documentFragment);
console.log('documentFragment = null;');
break;
case 2:
var rHTMLCode = randHTMLCode(0x10, 5);
console.log('var documentFragment = id_' + (demicm.rangeId + demicm.SPEC_OFFSET)
+ '.createContextualFragment("' + rHTMLCode + '");');
var documentFragment = idS[demicm.rangeId].createContextualFragment(rHTMLCode);
console.log('id_' + rId + '.appendChild(documentFragment);');
id[rId].appendChild(documentFragment);
console.log('documentFragment = null;');
break;
case 3:
console.log('var rangeCache = id_' + (demicm.rangeId + demicm.SPEC_OFFSET) + '.cloneRange();');
var rangeCache = idS[demicm.rangeId].cloneRange();
var type = randItem(['START_TO_START', 'END_TO_END', 'START_TO_END', 'END_TO_START']);
console.log('id_' + (demicm.rangeId + demicm.SPEC_OFFSET)
+ '.compareBoundaryPoints(Range.' + type + ', rangeCache);');
eval('idS[demicm.rangeId].compareBoundaryPoints(Range.' + type + ', rangeCache);');
console.log('rangeCache.detach();');
rangeCache.detach();
console.log('rangeCache = null;');
break;
}
} catch(e) {
console.log('// Error: alterRange: ' + e.message);
}
}
function alterSelection() {
if (demicm.IS_DEBUG) {
console.log('[+] alterSelection()');
}
try {
// Execute command on selection
var cmd = randItem(demicm.commands);
console.log('document.execCommand(' + cmd + ');');
eval('document.execCommand(' + cmd + ');');
propfMan([demicm.selId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'prop', 'spec');
propfMan([demicm.selId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'func', 'spec');
if (percent(20)) {
console.log('id_' + (demicm.selId + demicm.SPEC_OFFSET)
+ '.addRange(id_' + (demicm.rangeId + demicm.SPEC_OFFSET) + ');');
idS[demicm.selId].addRange(idS[demicm.rangeId]);
}
} catch(e) {
console.log('// Error: alterSelection: ' + e.message);
}
}
function constructGroup() {
constructNodeIterator();
constructTreeWalker();
constructRange();
constructSelection();
}
function reuseGroup() {
if (demicm.IS_DEBUG) {
console.log('[+] reuseGroup()');
}
try {
nodeIteration();
console.log('id_' + (demicm.curItrNodeId + demicm.SPEC_OFFSET) + ' = null;');
idS[demicm.curItrNodeId] = null;
console.log('id_' + (demicm.niId + demicm.SPEC_OFFSET) + '.detach();');
idS[demicm.niId].detach();
console.log('id_' + (demicm.niId + demicm.SPEC_OFFSET) + ' = null;');
idS[demicm.niId] = null;
console.log('gc();');
// gc();
treeIteration();
console.log('id_' + (demicm.curTreeNodeId + demicm.SPEC_OFFSET) + ' = null;');
idS[demicm.curTreeNodeId] = null;
console.log('id_' + (demicm.twId + demicm.SPEC_OFFSET) + ' = null;');
idS[demicm.twId] = null;
console.log('gc();');
// gc();
alterRange();
console.log('id_' + (demicm.rangeId + demicm.SPEC_OFFSET) + '.detach();');
idS[demicm.rangeId].detach();
console.log('id_' + (demicm.rangeId + demicm.SPEC_OFFSET) + ' = null;');
idS[demicm.rangeId] = null;
console.log('gc();');
// gc();
alterSelection();
console.log('id_' + (demicm.selId + demicm.SPEC_OFFSET) + ' = null;');
idS[demicm.selId] = null;
console.log('gc();');
// gc();
} catch(e) {
console.log('// Error: reuseGroup: ' + e.message);
}
}
function objMan(type) {
if (demicm.IS_DEBUG) {
console.log('[+] objMan(' + type + ')');
}
if (type == 'spec') {
var rObjId = randObjId(idS);
} else if (type == 'ret') {
var rObjId = randObjId(idR);
} else {
console.log('// Warning: objMan else');
}
if (rObjId == 'none') {
return;
}
propfMan([rObjId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'prop', type);
propfMan([rObjId], demicm.MAX_REC_DEPTH, demicm.MAX_RET_REC_DEPTH, 'func', type);
}
/************************************* prelude *************************************/
function prelude() {
setEnv();
constructDOMTree();
addTextNode();
if (demicm.IS_FUZZ_SPEC) {
constructSpec();
}
if (demicm.IS_FUZZ_RANGE) {
constructGroup();
}
setEvtHandler();
addCSS();
}
function setEnv() {
// Set body and document property
console.log('document.designMode = "on";');
document.designMode = 'on';
console.log('document.documentElement.contentEditable = "true";');
document.documentElement.contentEditable = 'true';
console.log('document.documentElement.dir = "rtl";');
document.documentElement.dir = 'rtl';
console.log('document.documentElement.draggable = "true";');
document.documentElement.draggable = 'true';
console.log('document.documentElement.spellcheck = "true";');
document.documentElement.spellcheck = 'true';
console.log('document.documentElement.translate = "true";');
document.documentElement.translate = 'true';
// Set at least one idR item for propfMan
console.log('var id_' + demicm.RET_OFFSET + ' = null;');
idR[0] = null;
// Set props and funcs cache
getPropAndFunc();
}
function eventHandler() {
if (percent(demicm.EVENT_OP_PER)) {
operate(demicm.EVENT_OP_CNT);
}
if (percent(demicm.EVENT_CLEAR_PER)) {
clear();
}
if (percent(demicm.EVENT_CLEAR_ALL_PER)) {
clearAll();
}
console.log('/-};');
}
function setEvtHandler() {
var noEvtElemIds = [];
for (var i = 0; i < demicm.elemNum; i++) {
noEvtElemIds[i] = i;
}
// Set event handler for no event element
for (var i = 0; i < demicm.EVENT_ELEM_NUM; i++) {
var setEvtId = randItem(noEvtElemIds);
removeArrVal(noEvtElemIds, setEvtId);
try {
// Set EVENT_NUM event handlers for setEvtId element
var tagName = getTagName(id[setEvtId]);
if (!inArr(demicm.tags, tagName)) {
updatePropfCache(id[setEvtId]);
}
for (var j = 0; j < demicm.EVENT_NUM; j++) {
var rEvt = randPropf(tagName, id[setEvtId], 'evt');
id[setEvtId][rEvt] = new Function('console.log("//id_' + setEvtId
+ '[\'' + rEvt + '\'] = function()");console.log("/-{");eventHandler();');
}
} catch(e) {
console.log('// Error: setEvtHandler: ' + e.message);
}
}
}
function addTextNode() {
for (var i = 0; i < demicm.TEXT_NUM; i++) {
try {
var rStr = randStr(rand(0x100));
var newId = demicm.elemNum + i;
console.log('id_' + newId + ' = document.createTextNode("' + rStr + '");');
id[newId] = document.createTextNode(rStr);
console.log('id_' + newId + '.id = ' + newId + ';');
id[newId].id = newId;
var rId = 0;
// id[0] = documentElem, id[4] = cssNode can't add textNode
while (rId == 0 || rId == 4) {
rId = rand(demicm.elemNum);
}
console.log('id_' + rId + '.appendChild(id_' + newId + ');');
id[rId].appendChild(id[newId]);
} catch(e) {
console.log('// Error: addTextNode: ' + e.message);
}
}
// Add no reference textNode
for (var i = 0; i < demicm.FREE_TEXT_NUM; i++) {
try {
var rStr = randStr(rand(0x100));
var rId = 0;
// id[0] = documentElem, id[4] = cssNode can't add textNode
while (rId == 0 || rId == 4) {
rId = rand(demicm.elemNum);
}
console.log('id_' + rId + '.appendChild(document.createTextNode("' + rStr + '"));');
id[rId].appendChild(document.createTextNode(rStr));
} catch(e) {
console.log('// Error: addTextNode: ' + e.message);
}
}
}
function constructTree(rootType, startId, len, branchNum) {
for (var i = 1; i <= len; i++) {
if (i <= branchNum) {
if (rootType == 'body') {
console.log('document.body.appendChild(id_' + (i + startId - 1) + ');');
document.body.appendChild(id[i + startId - 1]);
} else if (rootType == 'head') {
console.log('document.head.appendChild(id_' + (i + startId - 1) + ');');
document.head.appendChild(id[i + startId - 1]);
}
} else {
var row = Math.ceil(Math.log(((branchNum - 1) / branchNum) * i+1) / Math.log(branchNum));
var col = Math.ceil((i - branchNum * (Math.pow(branchNum, row - 1) - 1) / (branchNum - 1)) / branchNum);
var parentId = Math.ceil(branchNum * (Math.pow(branchNum, row - 2) - 1) / (branchNum - 1)) + col;
console.log('id_' + (parentId + startId - 1) + '.appendChild(id_' + (i + startId - 1) + ');');
id[parentId + startId - 1].appendChild(id[i + startId - 1]);
}
}
}
function constructDOMTree() {
// Add document, body, head to id[]
demicm.idTags = ['body', 'head'];
console.log('id_0 = document.documentElement;');
id[0] = document.documentElement;
console.log('document.documentElement.id = 0;');
document.documentElement.id = 0;
console.log('id_1 = document.head;');
id[1] = document.head;
console.log('document.head.id = 1;');
document.head.id = 1;
console.log('id_2 = document.body;');
id[2] = document.body;
console.log('document.body.id = 2;');
document.body.id = 2;
demicm.reserveIdNum = id.length;
var reserveTagNum = demicm.idTags.length;
demicm.elemNum = demicm.reserveIdNum + demicm.HEAD_CHILD_NUM + demicm.BODY_CHILD_NUM + demicm.FRAG_ELEM_NUM;
var delta = demicm.reserveIdNum - reserveTagNum;
// Create elems to id[] with random tag
for (var i = demicm.reserveIdNum; i < demicm.elemNum; i++) {
demicm.idTags.push(randItem(demicm.strictTags));
console.log('id_' + i + ' = document.createElement("' + demicm.idTags[i - delta] + '");');
id[i] = document.createElement(demicm.idTags[i - delta]);
console.log('id_' + i + '.id = ' + i + ';');
id[i].id = i;
}
// Construct body and head tree
constructTree('body', demicm.reserveIdNum, demicm.BODY_CHILD_NUM, demicm.BRANCH_NUM);
constructTree('head', demicm.BODY_CHILD_NUM + demicm.reserveIdNum, demicm.HEAD_CHILD_NUM, demicm.BRANCH_NUM);
// For IE cache
for (var i = reserveTagNum; i < demicm.idTags.length; i++) {
try {
console.log('document.documentElement.appendChild(document.createElement("' + demicm.idTags[i] + '"));');
document.documentElement.appendChild(document.createElement(demicm.idTags[i]));
} catch(e) {
console.log('// Error: constructDOMTree: ' + e.message);
}
}
}
function setAttr() {
if (demicm.IS_DEBUG) {
console.log('[+] setAttr()');
}
try {
if (percent(50)) {
var rStr = randAlpha(10);
} else {
var rStr = 'attrName';
}
console.log('id_' + (demicm.attrId + demicm.SPEC_OFFSET) + ' = document.createAttribute("'+ rStr + '");');
idS[demicm.attrId] = document.createAttribute(rStr);
var rStr = randAlpha(10);
console.log('id_' + (demicm.attrId + demicm.SPEC_OFFSET) + '.value = "' + rStr + '";');
idS[demicm.attrId].value = rStr;
var rId = randId('doc', true);
if (rId == 'none') {
return;
}
console.log('id_' + rId + '.setAttributeNode(id_' + (demicm.attrId + demicm.SPEC_OFFSET) + ');');
id[rId].setAttributeNode(idS[demicm.attrId]);
console.log('id_' + (demicm.nodeMapId + demicm.SPEC_OFFSET) + ' = id_' + rId + '.attributes;');
idS[demicm.nodeMapId] = id[rId].attributes;
} catch(e) {
console.log('// Error: setAttr: ' + e.message);
}
}
function constructSpec() {
if (demicm.IS_DEBUG) {
console.log('[+] constructSpec()');
}
try {
console.log('id_' + (demicm.winId + demicm.SPEC_OFFSET) + ' = window;');
idS[demicm.winId] = window;
console.log('id_' + (demicm.docId + demicm.SPEC_OFFSET) + ' = document;');
idS[demicm.docId] = document;
setAttr();
} catch(e) {
console.log('// Error: constructSpec: ' + e.message);
}
}
function addCSS() {
// Set CSS according to tagName
var cssList = '';
var tagList = randItem(demicm.idTags);
for (var i = 0; i < demicm.CSS_DIVERSE_NUM; i++) {
for (var j = 0; j < demicm.idTags.length * 1.5 / demicm.CSS_DIVERSE_NUM; j++) {
tagList += ', ' + randItem(demicm.idTags);
}
cssList += tagList + ' ' + randCSSText() + ' ';
}
// Add pseudo class
cssList += '*:active:first-child:first-letter:first-line:focus:hover:lang(en):link:visited ' + randCSSText();
// Add style elem
console.log('id_' + (demicm.styleId + demicm.SPEC_OFFSET) + ' = document.createElement("style");');
idS[demicm.styleId] = document.createElement('style');
console.log('id_' + (demicm.styleId + demicm.SPEC_OFFSET) + '.innerText = "' + cssList + '";');
idS[demicm.styleId].innerText = cssList;
console.log('document.documentElement.appendChild(id_' + (demicm.styleId + demicm.SPEC_OFFSET) + ');');
document.documentElement.appendChild(idS[demicm.styleId]);
}
/************************************* operate *************************************/
/*
* Manipulate property and function
* propStack: props chain
* retValDepth: ret obj fuzz depth
* type: 'prop' or 'func'
*/
function propfMan(propStack, recDepth, retValDepth, type, objType) {
try {
// Control recursion operate depth
if (recDepth <= 0) {
return;
}
// Get current fuzz object
if (objType == 'node') {
var fuzzObjStr = 'id[' + propStack[0] + ']';
var logObjStr = 'id_' + propStack[0];
} else if (objType == 'ret') {
var fuzzObjStr = 'idR[' + propStack[0] + ']';
var logObjStr = 'id_' + (propStack[0] + demicm.RET_OFFSET);
} else if (objType == 'spec') {
var fuzzObjStr = 'idS[' + propStack[0] + ']';
var logObjStr = 'id_' + (propStack[0] + demicm.SPEC_OFFSET);
}
for (var i = 1; i < propStack.length; i++) {
fuzzObjStr += '["' + propStack[i] + '"]';
logObjStr += '["' + propStack[i] + '"]';
}
eval('var fuzzObj = ' + fuzzObjStr + ';');
if (!fuzzObj || inArr(demicm.idBlackList, fuzzObj.id)) {
return;
}
// Recursively operate all subobject according to prop probability
var recWide = 0;
var recWideCnt = 0;
var arrCnt = 0;
//console.log('for (var p in ' + logObjStr + ') { ' + logObjStr + '[p]; }');
for (var p in fuzzObj) {
if (fuzzObj[p]
&& typeof fuzzObj[p] == 'object'
&& !isPosInt(fuzzObj[p].id)
&& !inArr(demicm.propBlackList, p)
&& !inArr(idS, fuzzObj[p])) {
if (isPosInt(p)) {
arrCnt++;
if (arrCnt > demicm.MAX_ARR_LOOP) {
break;
}
}
if (percent(demicm.PROP_PER)) {
propStack.push(p);
propfMan(propStack, recDepth - 1, retValDepth, 'prop', objType);
recWide++;
}
if (percent(demicm.FUNC_PER)) {
propStack.push(p);
propfMan(propStack, recDepth - 1, retValDepth, 'func', objType);
recWide++;
}
if (recWideCnt++ > demicm.MAX_REC_WIDE_CNT || recWide > demicm.MAX_REC_WIDE) {
break;
}
}
// In case the recursion procedure delete fuzzObj
eval('fuzzObj = ' + fuzzObjStr + ';');
if (!fuzzObj) {
return;
}
}
var tagName = getTagName(fuzzObj);
if (!inArr(demicm.tags, tagName)) {
updatePropfCache(fuzzObj);
}
var propf = randPropf(tagName, fuzzObj, type);
// Debug
if (demicm.IS_DEBUG) {
console.log('[+] FuzzObj: ' + fuzzObjStr + ', propf: ' + propf);
}
// Assert property number is not 0 or unexpected tagName
if (!propf) {
return;
}
// params: rId?s[1-n], suppose 10 params is enough
var rIds = [];
randIds(rIds, 10);
if (rIds[0] == 'none') {
if (objType == 'node') {
return;
} else {
rIds = [2,2,2,2,2,2,2,2,2,2];
}
}
var rIdRs = [];
randObjIds(rIdRs, 10, idR);
if (rIdRs[0] == 'none') {
if (objType == 'ret') {
return;
} else {
rIdRs = [0,0,0,0,0,0,0,0,0,0];
}
}
var rIdSs = [];
randObjIds(rIdSs, 10, idS);
if (rIdSs[0] == 'none') {
if (objType == 'spec') {
return;
} else {
rIdSs = [0,0,0,0,0,0,0,0,0,0];
}
}
eval('var bNormalPropf = propf in demicm.' + type + 'Dic;');
if (type == 'prop') {
propMan(fuzzObj, fuzzObjStr, logObjStr, propf, bNormalPropf, rIds, rIdRs, rIdSs, objType);
} else if (type == 'func') {
funcMan(fuzzObj, fuzzObjStr, logObjStr, propf, bNormalPropf, rIds, rIdRs, rIdSs
, recDepth, retValDepth, objType);
} else {
console.log('// Warning: propfMan else');
}
} catch(e) {
console.log('// Error: propfMan: ' + e.message);
}
finally {
propStack.pop();
}
}
function propMan(fuzzObj, fuzzObjStr, logObjStr, prop, bNormalProp, rIds, rIdRs, rIdSs, objType) {
try {
// Get value
if (demicm.IS_LOG_DEBUG) {
console.log('log debug:');
console.log('var retVal = ' + fuzzObjStr + '["' + prop + '"];');
}
console.log('var retVal = ' + logObjStr + '["' + prop + '"];');
eval('var retVal = ' + fuzzObjStr + '["' + prop + '"];');
// Return value is new object
var tagR = getTagName(retVal);
if (retVal
&& typeof retVal == 'object'
&& !isPosInt(retVal.id)
&& !inArr(demicm.tagRs, tagR)
&& !inArr(idS, retVal)
&& idR.length < demicm.MAX_RET_ARR_CNT) {
demicm.tagRs.push(tagR);
console.log('id_' + (idR.length + demicm.RET_OFFSET) + ' = retVal;');
idR[idR.length] = retVal;
}
// Set dirty value
if (bNormalProp && percent(demicm.PROP_DIRTY_PER) && demicm.propDic[prop].dirtyVal.length != 0) {
var rDirtyVal = randItem(demicm.propDic[prop].dirtyVal);
console.log(logObjStr + '["' + prop + '"] = '
+ logRevise(rIds[1], rIdRs[1], 'prop', rDirtyVal, 'node') + ';');
eval(fuzzObjStr + '["' + prop + '"] = rDirtyVal;');
// Set normal value
} else if (bNormalProp && percent(demicm.PROP_NORMAL_PER) && demicm.propDic[prop].normalVal.length != 0) {
if (inArr(demicm.specialProps, prop) && getTagName(fuzzObj) != 'none') {
var rNormalVal = randItem(demicm[prop][getTagName(fuzzObj)]);
if (rNormalVal == null) {
rNormalVal = randItem(demicm.propDic[prop].normalVal);
}