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creep.js
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(async function() {
// Detect Browser
const isChrome = 'chrome' in window
const isBrave = 'brave' in navigator
const isFirefox = typeof InstallTrigger !== 'undefined'
// Handle Errors
const errorsCaptured = []
const captureError = (error, customMessage = null) => {
const type = {
Error: true,
EvalError: true,
InternalError: true,
RangeError: true,
ReferenceError: true,
SyntaxError: true,
TypeError: true,
URIError: true,
InvalidStateError: true,
SecurityError: true
}
const hasInnerSpace = s => /.+(\s).+/g.test(s) // ignore AOPR noise
console.error(error) // log error to educate
const { name, message } = error
const trustedMessage = (
!hasInnerSpace(message) ? undefined :
!customMessage ? message :
`${message} [${customMessage}]`
)
const trustedName = type[name] ? name : undefined
errorsCaptured.push(
{ trustedName, trustedMessage }
)
return undefined
}
const attempt = (fn, customMessage = null) => {
try {
return fn()
} catch (error) {
if (customMessage) {
return captureError(error, customMessage)
}
return captureError(error)
}
}
const caniuse = (fn, objChainList = [], args = [], method = false) => {
let api
try {
api = fn()
} catch (error) {
return undefined
}
let i, len = objChainList.length, chain = api
try {
for (i = 0; i < len; i++) {
const obj = objChainList[i]
chain = chain[obj]
}
}
catch (error) {
return undefined
}
return (
method && args.length ? chain.apply(api, args) :
method && !args.length ? chain.apply(api) :
chain
)
}
// Log performance time
const timer = (logStart) => {
logStart && console.log(logStart)
let start = 0
try {
start = performance.now()
}
catch (error) {
captureError(error)
}
return logEnd => {
let end = 0
try {
end = performance.now() - start
logEnd && console.log(`${logEnd}: ${end / 1000} seconds`)
return end
}
catch (error) {
captureError(error)
return 0
}
}
}
// https://stackoverflow.com/a/22429679
const hashMini = str => {
const json = `${JSON.stringify(str)}`
let i, len, hash = 0x811c9dc5
for (i = 0, len = json.length; i < len; i++) {
hash = Math.imul(31, hash) + json.charCodeAt(i) | 0
}
return ('0000000' + (hash >>> 0).toString(16)).substr(-8)
}
// instance id
const instanceId = hashMini(crypto.getRandomValues(new Uint32Array(10)))
// https://stackoverflow.com/a/53490958
// https://stackoverflow.com/a/43383990
// https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/digest
const hashify = async (x) => {
const json = `${JSON.stringify(x)}`
const jsonBuffer = new TextEncoder().encode(json)
const hashBuffer = await crypto.subtle.digest('SHA-256', jsonBuffer)
const hashArray = Array.from(new Uint8Array(hashBuffer))
const hashHex = hashArray.map(b => ('00' + b.toString(16)).slice(-2)).join('')
return hashHex
}
// ie11 fix for template.content
function templateContent(template) {
// template {display: none !important} /* add css if template is in dom */
if ('content' in document.createElement('template')) {
return document.importNode(template.content, true)
} else {
const frag = document.createDocumentFragment()
const children = template.childNodes
for (let i = 0, len = children.length; i < len; i++) {
frag.appendChild(children[i].cloneNode(true))
}
return frag
}
}
// tagged template literal (JSX alternative)
const patch = (oldEl, newEl, fn = null) => {
oldEl.parentNode.replaceChild(newEl, oldEl)
return typeof fn === 'function' ? fn() : true
}
const html = (stringSet, ...expressionSet) => {
const template = document.createElement('template')
template.innerHTML = stringSet.map((str, i) => `${str}${expressionSet[i] || ''}`).join('')
return templateContent(template) // ie11 fix for template.content
}
// template helpers
const note = {
unsupported: '<span class="blocked">blocked</span> or unsupported',
blocked: '<span class="blocked">blocked</span>',
lied: '<span class="lies">lied</span>'
}
const pluralify = len => len > 1 ? 's' : ''
const toJSONFormat = obj => JSON.stringify(obj, null, '\t')
const count = arr => arr && arr.constructor.name === 'Array' ? ''+(arr.length) : '0'
// modal component
const modal = (name, result) => {
if (!result.length) {
return ''
}
return `
<style>
.modal-${name}:checked ~ .modal-container {
visibility: visible;
opacity: 1;
animation: show 0.1s linear both;
}
.modal-${name}:checked ~ .modal-container .modal-content {
animation: enter 0.2s ease both
}
.modal-${name}:not(:checked) ~ .modal-container {
visibility: hidden;
}
</style>
<input type="radio" id="toggle-open-${name}" class="modal-${name}" name="modal-${name}"/>
<label class="modal-open-btn" for="toggle-open-${name}" onclick="">details</label>
<label class="modal-container" for="toggle-close-${name}" onclick="">
<label class="modal-content" for="toggle-open-${name}" onclick="">
<input type="radio" id="toggle-close-${name}" name="modal-${name}"/>
<label class="modal-close-btn" for="toggle-close-${name}" onclick="">×</label>
<div>${result}</div>
</label>
</label>
`
}
// Detect proxy behavior
const proxyBehavior = x => typeof x == 'function' ? true : false
// Detect gibberish
const accept = {'aa': 1, 'ab': 1, 'ac': 1, 'ad': 1, 'ae': 1, 'af': 1, 'ag': 1, 'ah': 1, 'ai': 1, 'aj': 1, 'ak': 1, 'al': 1, 'am': 1, 'an': 1, 'ao': 1, 'ap': 1, 'aq': 1, 'ar': 1, 'as': 1, 'at': 1, 'au': 1, 'av': 1, 'aw': 1, 'ax': 1, 'ay': 1, 'az': 1, 'ba': 1, 'bb': 1, 'bc': 1, 'bd': 1, 'be': 1, 'bf': 1, 'bg': 1, 'bh': 1, 'bi': 1, 'bj': 1, 'bk': 1, 'bl': 1, 'bm': 1, 'bn': 1, 'bo': 1, 'bp': 1, 'br': 1, 'bs': 1, 'bt': 1, 'bu': 1, 'bv': 1, 'bw': 1, 'bx': 1, 'by': 1, 'ca': 1, 'cb': 1, 'cc': 1, 'cd': 1, 'ce': 1, 'cg': 1, 'ch': 1, 'ci': 1, 'ck': 1, 'cl': 1, 'cm': 1, 'cn': 1, 'co': 1, 'cp': 1, 'cq': 1, 'cr': 1, 'cs': 1, 'ct': 1, 'cu': 1, 'cw': 1, 'cy': 1, 'cz': 1, 'da': 1, 'db': 1, 'dc': 1, 'dd': 1, 'de': 1, 'df': 1, 'dg': 1, 'dh': 1, 'di': 1, 'dj': 1, 'dk': 1, 'dl': 1, 'dm': 1, 'dn': 1, 'do': 1, 'dp': 1, 'dq': 1, 'dr': 1, 'ds': 1, 'dt': 1, 'du': 1, 'dv': 1, 'dw': 1, 'dx': 1, 'dy': 1, 'dz': 1, 'ea': 1, 'eb': 1, 'ec': 1, 'ed': 1, 'ee': 1, 'ef': 1, 'eg': 1, 'eh': 1, 'ei': 1, 'ej': 1, 'ek': 1, 'el': 1, 'em': 1, 'en': 1, 'eo': 1, 'ep': 1, 'eq': 1, 'er': 1, 'es': 1, 'et': 1, 'eu': 1, 'ev': 1, 'ew': 1, 'ex': 1, 'ey': 1, 'ez': 1, 'fa': 1, 'fb': 1, 'fc': 1, 'fd': 1, 'fe': 1, 'ff': 1, 'fg': 1, 'fh': 1, 'fi': 1, 'fj': 1, 'fk': 1, 'fl': 1, 'fm': 1, 'fn': 1, 'fo': 1, 'fp': 1, 'fr': 1, 'fs': 1, 'ft': 1, 'fu': 1, 'fw': 1, 'fy': 1, 'ga': 1, 'gb': 1, 'gc': 1, 'gd': 1, 'ge': 1, 'gf': 1, 'gg': 1, 'gh': 1, 'gi': 1, 'gj': 1, 'gk': 1, 'gl': 1, 'gm': 1, 'gn': 1, 'go': 1, 'gp': 1, 'gr': 1, 'gs': 1, 'gt': 1, 'gu': 1, 'gw': 1, 'gy': 1, 'gz': 1, 'ha': 1, 'hb': 1, 'hc': 1, 'hd': 1, 'he': 1, 'hf': 1, 'hg': 1, 'hh': 1, 'hi': 1, 'hj': 1, 'hk': 1, 'hl': 1, 'hm': 1, 'hn': 1, 'ho': 1, 'hp': 1, 'hq': 1, 'hr': 1, 'hs': 1, 'ht': 1, 'hu': 1, 'hv': 1, 'hw': 1, 'hy': 1, 'ia': 1, 'ib': 1, 'ic': 1, 'id': 1, 'ie': 1, 'if': 1, 'ig': 1, 'ih': 1, 'ii': 1, 'ij': 1, 'ik': 1, 'il': 1, 'im': 1, 'in': 1, 'io': 1, 'ip': 1, 'iq': 1, 'ir': 1, 'is': 1, 'it': 1, 'iu': 1, 'iv': 1, 'iw': 1, 'ix': 1, 'iy': 1, 'iz': 1, 'ja': 1, 'jc': 1, 'je': 1, 'ji': 1, 'jj': 1, 'jk': 1, 'jn': 1, 'jo': 1, 'ju': 1, 'ka': 1, 'kb': 1, 'kc': 1, 'kd': 1, 'ke': 1, 'kf': 1, 'kg': 1, 'kh': 1, 'ki': 1, 'kj': 1, 'kk': 1, 'kl': 1, 'km': 1, 'kn': 1, 'ko': 1, 'kp': 1, 'kr': 1, 'ks': 1, 'kt': 1, 'ku': 1, 'kv': 1, 'kw': 1, 'ky': 1, 'la': 1, 'lb': 1, 'lc': 1, 'ld': 1, 'le': 1, 'lf': 1, 'lg': 1, 'lh': 1, 'li': 1, 'lj': 1, 'lk': 1, 'll': 1, 'lm': 1, 'ln': 1, 'lo': 1, 'lp': 1, 'lq': 1, 'lr': 1, 'ls': 1, 'lt': 1, 'lu': 1, 'lv': 1, 'lw': 1, 'lx': 1, 'ly': 1, 'lz': 1, 'ma': 1, 'mb': 1, 'mc': 1, 'md': 1, 'me': 1, 'mf': 1, 'mg': 1, 'mh': 1, 'mi': 1, 'mj': 1, 'mk': 1, 'ml': 1, 'mm': 1, 'mn': 1, 'mo': 1, 'mp': 1, 'mq': 1, 'mr': 1, 'ms': 1, 'mt': 1, 'mu': 1, 'mv': 1, 'mw': 1, 'my': 1, 'na': 1, 'nb': 1, 'nc': 1, 'nd': 1, 'ne': 1, 'nf': 1, 'ng': 1, 'nh': 1, 'ni': 1, 'nj': 1, 'nk': 1, 'nl': 1, 'nm': 1, 'nn': 1, 'no': 1, 'np': 1, 'nq': 1, 'nr': 1, 'ns': 1, 'nt': 1, 'nu': 1, 'nv': 1, 'nw': 1, 'nx': 1, 'ny': 1, 'nz': 1, 'oa': 1, 'ob': 1, 'oc': 1, 'od': 1, 'oe': 1, 'of': 1, 'og': 1, 'oh': 1, 'oi': 1, 'oj': 1, 'ok': 1, 'ol': 1, 'om': 1, 'on': 1, 'oo': 1, 'op': 1, 'oq': 1, 'or': 1, 'os': 1, 'ot': 1, 'ou': 1, 'ov': 1, 'ow': 1, 'ox': 1, 'oy': 1, 'oz': 1, 'pa': 1, 'pb': 1, 'pc': 1, 'pd': 1, 'pe': 1, 'pf': 1, 'pg': 1, 'ph': 1, 'pi': 1, 'pj': 1, 'pk': 1, 'pl': 1, 'pm': 1, 'pn': 1, 'po': 1, 'pp': 1, 'pr': 1, 'ps': 1, 'pt': 1, 'pu': 1, 'pw': 1, 'py': 1, 'pz': 1, 'qa': 1, 'qe': 1, 'qi': 1, 'qo': 1, 'qr': 1, 'qs': 1, 'qt': 1, 'qu': 1, 'ra': 1, 'rb': 1, 'rc': 1, 'rd': 1, 're': 1, 'rf': 1, 'rg': 1, 'rh': 1, 'ri': 1, 'rj': 1, 'rk': 1, 'rl': 1, 'rm': 1, 'rn': 1, 'ro': 1, 'rp': 1, 'rq': 1, 'rr': 1, 'rs': 1, 'rt': 1, 'ru': 1, 'rv': 1, 'rw': 1, 'rx': 1, 'ry': 1, 'rz': 1, 'sa': 1, 'sb': 1, 'sc': 1, 'sd': 1, 'se': 1, 'sf': 1, 'sg': 1, 'sh': 1, 'si': 1, 'sj': 1, 'sk': 1, 'sl': 1, 'sm': 1, 'sn': 1, 'so': 1, 'sp': 1, 'sq': 1, 'sr': 1, 'ss': 1, 'st': 1, 'su': 1, 'sv': 1, 'sw': 1, 'sy': 1, 'sz': 1, 'ta': 1, 'tb': 1, 'tc': 1, 'td': 1, 'te': 1, 'tf': 1, 'tg': 1, 'th': 1, 'ti': 1, 'tj': 1, 'tk': 1, 'tl': 1, 'tm': 1, 'tn': 1, 'to': 1, 'tp': 1, 'tr': 1, 'ts': 1, 'tt': 1, 'tu': 1, 'tv': 1, 'tw': 1, 'tx': 1, 'ty': 1, 'tz': 1, 'ua': 1, 'ub': 1, 'uc': 1, 'ud': 1, 'ue': 1, 'uf': 1, 'ug': 1, 'uh': 1, 'ui': 1, 'uj': 1, 'uk': 1, 'ul': 1, 'um': 1, 'un': 1, 'uo': 1, 'up': 1, 'uq': 1, 'ur': 1, 'us': 1, 'ut': 1, 'uu': 1, 'uv': 1, 'uw': 1, 'ux': 1, 'uy': 1, 'uz': 1, 'va': 1, 'vc': 1, 'vd': 1, 've': 1, 'vg': 1, 'vi': 1, 'vl': 1, 'vn': 1, 'vo': 1, 'vr': 1, 'vs': 1, 'vt': 1, 'vu': 1, 'vv': 1, 'vy': 1, 'vz': 1, 'wa': 1, 'wb': 1, 'wc': 1, 'wd': 1, 'we': 1, 'wf': 1, 'wg': 1, 'wh': 1, 'wi': 1, 'wj': 1, 'wk': 1, 'wl': 1, 'wm': 1, 'wn': 1, 'wo': 1, 'wp': 1, 'wr': 1, 'ws': 1, 'wt': 1, 'wu': 1, 'ww': 1, 'wy': 1, 'wz': 1, 'xa': 1, 'xb': 1, 'xc': 1, 'xe': 1, 'xf': 1, 'xg': 1, 'xh': 1, 'xi': 1, 'xl': 1, 'xm': 1, 'xn': 1, 'xo': 1, 'xp': 1, 'xq': 1, 'xs': 1, 'xt': 1, 'xu': 1, 'xv': 1, 'xw': 1, 'xx': 1, 'xy': 1, 'ya': 1, 'yb': 1, 'yc': 1, 'yd': 1, 'ye': 1, 'yf': 1, 'yg': 1, 'yh': 1, 'yi': 1, 'yj': 1, 'yk': 1, 'yl': 1, 'ym': 1, 'yn': 1, 'yo': 1, 'yp': 1, 'yr': 1, 'ys': 1, 'yt': 1, 'yu': 1, 'yv': 1, 'yw': 1, 'yx': 1, 'yz': 1, 'za': 1, 'zb': 1, 'zc': 1, 'zd': 1, 'ze': 1, 'zg': 1, 'zh': 1, 'zi': 1, 'zj': 1, 'zk': 1, 'zl': 1, 'zm': 1, 'zn': 1, 'zo': 1, 'zp': 1, 'zq': 1, 'zs': 1, 'zt': 1, 'zu': 1, 'zv': 1, 'zw': 1, 'zy': 1, 'zz': 1}
const gibberish = str => {
const gibbers = []
if (!str) {
return gibbers
}
const clean = str.toLowerCase().replace(/\d|\W|_/g, ' ').replace(/\s+/g,' ').trim().split(' ').join('_')
const len = clean.length
const arr = [...clean]
arr.forEach((char, index) => {
const next = index+1
if (arr[next] == '_' || char == '_' || next == len) { return true }
const combo = char+arr[index+1]
const acceptable = !!accept[combo]
!acceptable && gibbers.push(combo)
return
})
return gibbers
}
// nested contentWindow context
const validateContentWindow = iframe => {
if (!iframe.contentWindow) { throw new Error('blocked by client') }
return iframe
}
const getNestedContentWindowContext = instanceId => {
return new Promise(resolve => {
const allowScripts = () => !isFirefox && !isChrome ? 'allow-scripts ' : ''
try {
const thisSiteCantBeReached = `about:${instanceId}` // url must yield 'this site cant be reached' error
const createIframe = (win, id) => {
const doc = win.document
const iframe = doc.createElement('iframe')
iframe.setAttribute('id', id)
iframe.setAttribute('style', 'display:none')
iframe.setAttribute('sandbox', `${allowScripts()}allow-same-origin`)
const placeholder = doc.createElement('div')
placeholder.setAttribute('style', 'display:none')
const placeholderId = `${instanceId}-contentWindow-placeholder`
placeholder.setAttribute('id', placeholderId)
if (isChrome) {
iframe.src = thisSiteCantBeReached
}
let rendered = win
try {
doc.body.append(iframe)
rendered = validateContentWindow(iframe)
}
catch(error) {
captureError(error, 'client tampered with append')
}
try {
doc.body.prepend(iframe)
rendered = validateContentWindow(iframe)
}
catch(error) {
captureError(error, 'client tampered with prepend')
}
try {
doc.body.appendChild(iframe)
rendered = validateContentWindow(iframe)
}
catch(error) {
captureError(error, 'client tampered with appendChild')
}
try {
doc.body.appendChild(placeholder)
placeholder.replaceWith(iframe)
rendered = validateContentWindow(iframe)
}
catch(error) {
captureError(error, 'client tampered with replaceWith')
}
try {
doc.body.insertBefore(iframe, win.parent.firstChild)
rendered = validateContentWindow(iframe)
}
catch(error) {
captureError(error, 'client tampered with insertBefore')
}
try {
doc.body.appendChild(placeholder)
doc.body.replaceChild(iframe, placeholder)
rendered = validateContentWindow(iframe)
}
catch(error) {
captureError(error, 'client tampered with replaceChild')
}
try {
doc.body.insertAdjacentElement('afterend', iframe)
rendered = validateContentWindow(iframe)
}
catch(error) {
captureError(error, 'client tampered with insertAdjacentElement afterend')
}
try {
doc.body.insertAdjacentElement('beforeend', iframe)
rendered = validateContentWindow(iframe)
}
catch(error) {
captureError(error, 'client tampered with insertAdjacentElement beforeend')
}
try {
doc.body.insertAdjacentElement('beforebegin', iframe)
rendered = validateContentWindow(iframe)
}
catch(error) {
captureError(error, 'client tampered with insertAdjacentElement beforebegin')
}
try {
doc.body.insertAdjacentElement('afterbegin', iframe)
rendered = validateContentWindow(iframe)
}
catch(error) {
captureError(error, 'client tampered with insertAdjacentElement afterbegin')
}
return {
el: rendered,
context: rendered.contentWindow,
remove: () => rendered.parentNode.removeChild(rendered)
}
}
const parentIframe = createIframe(window, `${instanceId}-parent-iframe`)
const {
context: contentWindow
} = createIframe(parentIframe.context, `${instanceId}-nested-iframe`)
if (isChrome) { contentWindow.location = thisSiteCantBeReached }
setTimeout(()=> {
resolve({ contentWindow, parentIframe })
}, 100) // delay frame load
return
}
catch (error) {
captureError(error, 'client blocked nested iframe context')
return resolve({contentWindow: undefined, parentIframe: undefined})
}
})
}
const { contentWindow, parentIframe } = await getNestedContentWindowContext(instanceId)
// detect and fingerprint Function API lies
const native = (result, str, willHaveBlanks = false) => {
const chrome = `function ${str}() { [native code] }`
const chromeGet = `function get ${str}() { [native code] }`
const firefox = `function ${str}() {\n [native code]\n}`
const chromeBlank = `function () { [native code] }`
const firefoxBlank = `function () {\n [native code]\n}`
return (
result == chrome ||
result == chromeGet ||
result == firefox || (
willHaveBlanks && (result == chromeBlank || result == firefoxBlank)
)
)
}
const testLookupGetter = (proto, name) => {
if (proto.__lookupGetter__(name)) {
return {
[`Expected __lookupGetter__ to return undefined`]: true
}
}
return false
}
const testLength = (apiFunction, name) => {
const apiLen = {
createElement: [true, 1],
createElementNS: [true, 2],
toBlob: [true, 1],
getImageData: [true, 4],
measureText: [true, 1],
toDataURL: [true, 0],
getContext: [true, 1],
getParameter: [true, 1],
getExtension: [true, 1],
getSupportedExtensions: [true, 0],
getParameter: [true, 1],
getExtension: [true, 1],
getSupportedExtensions: [true, 0],
getClientRects: [true, 0],
getChannelData: [true, 1],
copyFromChannel: [true, 2],
getTimezoneOffset: [true, 0]
}
if (apiLen[name] && apiLen[name][0] && apiFunction.length != apiLen[name][1]) {
return {
[`Expected length ${apiLen[name][1]} and got ${apiFunction.length}`]: true
}
}
return false
}
const testEntries = apiFunction => {
const objectFail = {
entries: 0,
keys: 0,
values: 0
}
let totalFail = 0
const objEntriesLen = Object.entries(apiFunction).length
const objKeysLen = Object.keys(apiFunction).length
const objKeysValues = Object.values(apiFunction).length
if (!!objEntriesLen) {
totalFail++
objectFail.entries = objEntriesLen
}
if (!!objKeysLen) {
totalFail++
objectFail.keys = objKeysLen
}
if (!!objKeysValues) {
totalFail++
objectFail.values = objKeysValues
}
if (totalFail) {
return {
[`Expected entries, keys, values [0, 0, 0] and got [${objectFail.entries}, ${objectFail.keys}, ${objectFail.values}]`]: true
}
}
return false
}
const testPrototype = apiFunction => {
if ('prototype' in apiFunction) {
return {
[`Unexpected 'prototype' in function`]: true
}
}
return false
}
const testNew = apiFunction => {
try {
new apiFunction
return {
['Expected new to throw an error']: true
}
}
catch (error) {
// Native throws error
return false
}
}
const testName = (apiFunction, name) => {
const { name: apiName } = apiFunction
if (apiName != '' && apiName != name) {
return {
[`Expected name "${name}" and got "${apiName}"`]: true
}
}
return false
}
const testToString = (apiFunction, fnToStr, contentWindow) => {
const { toString: apiToString } = apiFunction
if (apiToString+'' !== fnToStr || apiToString.toString+'' !== fnToStr) {
return {
[`Expected toString to match ${contentWindow ? 'contentWindow.' : ''}Function.toString`]: true
}
}
return false
}
const testOwnProperty = apiFunction => {
const notOwnProperties = []
if (apiFunction.hasOwnProperty('arguments')) {
notOwnProperties.push('arguments')
}
if (apiFunction.hasOwnProperty('caller')) {
notOwnProperties.push('caller')
}
if (apiFunction.hasOwnProperty('prototype')) {
notOwnProperties.push('prototype')
}
if (apiFunction.hasOwnProperty('toString')) {
notOwnProperties.push('toString')
}
if (!!notOwnProperties.length) {
return {
[`Unexpected own property: ${notOwnProperties.join(', ')}`]: true
}
}
return false
}
const testOwnPropertyDescriptor = apiFunction => {
const notDescriptors = []
if (!!Object.getOwnPropertyDescriptor(apiFunction, 'arguments') ||
!!Reflect.getOwnPropertyDescriptor(apiFunction, 'arguments')) {
notDescriptors.push('arguments')
}
if (!!Object.getOwnPropertyDescriptor(apiFunction, 'caller') ||
!!Reflect.getOwnPropertyDescriptor(apiFunction, 'caller')) {
notDescriptors.push('caller')
}
if (!!Object.getOwnPropertyDescriptor(apiFunction, 'prototype') ||
!!Reflect.getOwnPropertyDescriptor(apiFunction, 'prototype')) {
notDescriptors.push('prototype')
}
if (!!Object.getOwnPropertyDescriptor(apiFunction, 'toString') ||
!!Reflect.getOwnPropertyDescriptor(apiFunction, 'toString')) {
notDescriptors.push('toString')
}
if (!!notDescriptors.length) {
return {
[`Unexpected descriptor: ${notDescriptors.join(', ')}`]: true
}
}
return
}
const testDescriptorKeys = apiFunction => {
const descriptorKeys = Object.keys(Object.getOwnPropertyDescriptors(apiFunction))
if (''+descriptorKeys != 'length,name' && ''+descriptorKeys != 'name,length') {
return {
['Expected own property descriptor keys [length, name]']: true
}
}
return false
}
const testOwnPropertyNames = apiFunction => {
const ownPropertyNames = Object.getOwnPropertyNames(apiFunction)
if (''+ownPropertyNames != 'length,name' && ''+ownPropertyNames != 'name,length') {
return {
['Expected own property names [length, name]']: true
}
}
return false
}
const testOwnKeys = apiFunction => {
const ownKeys = Reflect.ownKeys(apiFunction)
if (''+ownKeys != 'length,name' && ''+ownKeys != 'name,length') {
return {
['Expected own keys [length, name]']: true
}
}
return false
}
const testDescriptor = (proto, name) => {
const descriptor = Object.getOwnPropertyDescriptor(proto, name)
const ownPropLen = Object.getOwnPropertyNames(descriptor).length
const ownKeysLen = Reflect.ownKeys(descriptor).length
const keysLen = Object.keys(descriptor).length
if (ownPropLen != keysLen || ownPropLen != ownKeysLen) {
return {
['Expected keys and own property names to match in length']: true
}
}
return false
}
const testGetToString = (proto, name) => {
try {
Object.getOwnPropertyDescriptor(proto, name).get.toString()
Reflect.getOwnPropertyDescriptor(proto, name).get.toString()
return {
['Expected descriptor.get.toString() to throw an error']: true
}
}
catch (error) {
// Native throws error
return false
}
}
const testIllegal = (api, name) => {
let illegalCount = 0
const illegal = [
'',
'is',
'call',
'seal',
'keys',
'bind',
'apply',
'assign',
'freeze',
'values',
'entries',
'toString',
'isFrozen',
'isSealed',
'constructor',
'isExtensible',
'getPrototypeOf',
'preventExtensions',
'propertyIsEnumerable',
'getOwnPropertySymbols',
'getOwnPropertyDescriptors'
]
try {
api[name]
illegalCount++
}
catch (error) {
// Native throws error
}
illegal.forEach((prop, index) => {
try {
!prop ? Object(api[name]) : Object[prop](api[name])
illegalCount++
}
catch (error) {
// Native throws error
}
})
if (illegalCount) {
const total = illegal.length+1
return {
[`Expected illegal invocation error: ${total-illegalCount} of ${total} passed`]: true
}
}
return false
}
const testValue = (obj, name) => {
try {
Object.getOwnPropertyDescriptor(obj, name).value
Reflect.getOwnPropertyDescriptor(obj, name).value
return {
['Expected descriptor.value to throw an error']: true
}
}
catch (error) {
// Native throws error
return false
}
}
const hasLiedAPI = (api, name, obj) => {
const fnToStr = (
contentWindow ?
contentWindow.Function.prototype.toString.call(Function.prototype.toString) : // aggressive test
Function.prototype.toString+''
)
let willHaveBlanks = false
try {
willHaveBlanks = obj && (obj+'' == '[object Navigator]' || obj+'' == '[object Document]')
}
catch (error) { }
if (typeof api == 'function') {
const proto = obj
const apiFunction = api
try {
const testResults = new Set(
[
testLookupGetter(proto, name),
testLength(apiFunction, name),
testEntries(apiFunction),
testGetToString(proto, name),
// common tests
testPrototype(apiFunction),
testNew(apiFunction),
testName(apiFunction, name),
testToString(apiFunction, fnToStr, contentWindow),
testOwnProperty(apiFunction),
testOwnPropertyDescriptor(apiFunction),
testDescriptorKeys(apiFunction),
testOwnPropertyNames(apiFunction),
testOwnKeys(apiFunction),
testDescriptor(proto, name)
]
)
testResults.delete(false)
testResults.delete(undefined)
const lies = [...testResults]
// collect string conversion result
const result = (
contentWindow ?
contentWindow.Function.prototype.toString.call(apiFunction) :
'' + apiFunction
)
// fingerprint result if it does not match native code
let fingerprint = ''
if (!native(result, name, willHaveBlanks)) {
fingerprint = result
}
return {
lie: lies.length || fingerprint ? { lies, fingerprint } : false
}
}
catch (error) {
captureError(error)
return false
}
}
if (typeof api == 'object' && caniuse(() => obj[name]) != undefined) {
try {
const proto = api
const apiFunction = Object.getOwnPropertyDescriptor(api, name).get
const testResults = new Set(
[
testIllegal(api, name),
testValue(obj, name),
// common tests
testPrototype(apiFunction),
testNew(apiFunction),
testName(apiFunction, name),
testToString(apiFunction, fnToStr, contentWindow),
testOwnProperty(apiFunction),
testOwnPropertyDescriptor(apiFunction),
testDescriptorKeys(apiFunction),
testOwnPropertyNames(apiFunction),
testOwnKeys(apiFunction),
testDescriptor(proto, name)
]
)
testResults.delete(false)
testResults.delete(undefined)
const lies = [...testResults]
// collect string conversion result
const result = (
contentWindow ?
contentWindow.Function.prototype.toString.call(apiFunction) :
'' + apiFunction
)
let objlookupGetter, apiProtoLookupGetter, result2, result3
if (obj) {
objlookupGetter = obj.__lookupGetter__(name)
apiProtoLookupGetter = api.__lookupGetter__(name)
const contentWindowResult = (
typeof objlookupGetter != 'function' ? undefined :
attempt(() => contentWindow.Function.prototype.toString.call(objlookupGetter))
)
result2 = (
contentWindowResult ?
contentWindowResult :
'' + objlookupGetter
)
result3 = '' + apiProtoLookupGetter
}
// fingerprint result if it does not match native code
let fingerprint = ''
if (!native(result, name, willHaveBlanks)) {
fingerprint = result
}
else if (obj && !native(result2, name, willHaveBlanks)) {
fingerprint = result2
}
else if (obj && !native(result3, name, willHaveBlanks)) {
fingerprint = result3 != 'undefined' ? result3 : ''
}
return {
lie: lies.length || fingerprint ? { lies, fingerprint } : false
}
}
catch (error) {
captureError(error)
return false
}
}
return false
}
// id known hash
const known = hash => {
const id = {
// math
'89455ebb9765644fb98068ec68fbad7fcaaf2768b2cb6e1bd062eee5790c00e8': 'Chromium',
'2607501c5033cc3ca19e835f701baf381e813f6bacfd5d50955364b078b24ecf': 'Chromium', // pow ** bug
"99740c3678fd95585c1bd0b40e2fabfcf4043a7608a4e67fff2786fc3a59cf8a": "iOS",
'c1141e10c4d38a4ca1a49d9c7335fdfdcd7625b4ba04053a2f335434ec7e4d36': 'Safari (~MacOS)',
'ddc8837ab98695120dae774f04dcf295d2414ffc03431360d46b70380224547a': 'Firefox (~MacOS)',
"09525011e48d69f97b4486a09a7d84dcb702ecb091f28d27b15fdf422960b874": "Tor Browser (~Win64)",
"41141d85c8cee2ea78ad023124f0ee02e35f509d00742978c7b460e5737919de": "Firefox (~Win64)",
'db3f6704dd3e8feed2b5553a95a8a8575beb904af89ce64aa85d537b36b19319': 'Firefox (~Win64)',
'87b691d273993fb305b44cecf3429cdd5c5f4d387fb0e66bccaaf7670ca46915': 'Firefox (~Linux)',
'870471782bc768a4dae3198669358f0d199b92d9e1c4441a3399141ff502a486': 'Firefox (~Android)',
"7013d0058ae26c73a4f88aca9c292ef7ac3042d8e96fb53c7ba82723bd6ffbee": "Firefox (~Android)",
"7868cba1b7206a334ea36b83c59f53cfaff4df2f0ee68f1a3978393195e1c0dc": "Firefox (~Android)",
// errors
'7757f7416b78fb8ac1f079b3e0677c0fe179826a63727d809e7d69795e915cd5': 'Chromium',
'a8c7362bfa3851b0ea294c075f5708b73b679b484498989d7fde311441ed3322': 'Chromium',
'21f2f6f397db5fa611029154c35cd96eb9a96c4f1c993d4c3a25da765f2dd13b': 'Firefox',
'bec95f2a6f1d2c815b154802467514f7b774ea64667e566acaf903db224c2b38': 'Firefox',
'7c95559c6754c42c0d87fa0339f8a7cc5ed092e7e91ae9e50d3212f7486fcbeb': 'Firefox',
'd420d594c5a7f7f9a93802eebc3bec3fba0ea2dde91843f6c4746121ef5da140': 'Safari'
}
return id[hash] ? id[hash] : 'Other'
}
// Collect trash values
const trashBin = []
const sendToTrash = (name, val, response = undefined) => {
const proxyLike = proxyBehavior(val)
const value = !proxyLike ? val : 'proxy behavior detected'
trashBin.push({ name, value })
return response
}
// Collect lies detected
const lieProps = {}
const lieRecords = []
const documentLie = (name, lieResult, lieTypes) => {
return lieRecords.push({ name, lieTypes, hash: lieResult, lie: hashMini(lieTypes) })
}
// validate
const isInt = (x) => typeof x == 'number' && x % 1 == 0
const trustInteger = (name, val) => {
const trusted = isInt(val)
return trusted ? val : sendToTrash(name, val)
}
// deep search lies
const getMethods = (obj, ignore) => {
if (!obj) {
return []
}
return Object.getOwnPropertyNames(obj).filter(item => {
if (ignore[item]) {
// validate critical methods elsewhere
return false
}
try {
return typeof obj[item] === 'function'
}
catch (error) {
return false
}
})
}
const getValues = (obj, ignore) => {
if (!obj) {
return []
}
return Object.getOwnPropertyNames(obj).filter(item => {
if (ignore[item]) {
// validate critical methods elsewhere
return false
}
try {
return (
typeof obj[item] == 'string' ||
typeof obj[item] == 'number' ||
!obj[item]
)
}
catch (error) {
return false
}
})
}
const intlConstructors = {
'Collator': !0,
'DateTimeFormat': !0,
'DisplayNames': !0,
'ListFormat': !0,
'NumberFormat': !0,
'PluralRules': !0,
'RelativeTimeFormat': !0
}
const searchLies = (obj, ignoreProps, { logToConsole = false, proto = null } = {}) => {
if (!obj) {
return
}
let methods
const isMath = (obj+'' == '[object Math]')
const isTypeofObject = typeof obj == 'object'
if (isMath) {
methods = getMethods(obj, ignoreProps)
}
else if (isTypeofObject) {
methods = getValues(obj, ignoreProps)
}
else {
methods = getMethods(obj.prototype, ignoreProps)
}
return methods.forEach(name => {
let domManipLie
if (isMath) {
domManipLie = hasLiedAPI(obj[name], name, obj).lie
if (domManipLie) {
const apiName = `Math.${name}`
lieProps[apiName] = true
documentLie(apiName, undefined, domManipLie)
}
}
else if (isTypeofObject) {
domManipLie = hasLiedAPI(proto, name, obj).lie
if (domManipLie) {
const objName = /\s(.+)\]/g.exec(proto)[1]
const apiName = `${objName}.${name}`
lieProps[apiName] = true
documentLie(apiName, undefined, domManipLie)
}
}
else {
domManipLie = hasLiedAPI(obj.prototype[name], name, obj.prototype).lie
if (domManipLie) {
const objName = /\s(.+)\(\)/g.exec(obj)[1]
const apiName = `${intlConstructors[objName] ? 'Intl.' : ''}${objName}.${name}`
lieProps[apiName] = true
documentLie(apiName, undefined, domManipLie)
}
}
if (logToConsole) {
console.log(name, domManipLie)
}
})
}
searchLies(Node, {
constructor: !0
})
searchLies(Element, {
constructor: !0
})
searchLies(HTMLElement, {
constructor: !0,
requestFullscreen: !0 // in FF mobile, this does not appear native
})
searchLies(HTMLCanvasElement, {
constructor: !0
})
searchLies(Navigator, {
constructor: !0
})
searchLies(navigator, {
constructor: !0
}, { logToConsole: false, proto: Navigator.prototype })
searchLies(Screen, {
constructor: !0
})
searchLies(screen, {
constructor: !0
}, { logToConsole: false, proto: Screen.prototype })
searchLies(Date, {
constructor: !0,
toGMTString: !0
})
searchLies(Intl.Collator, {
constructor: !0
})
searchLies(Intl.DateTimeFormat, {
constructor: !0
})
searchLies(caniuse(() => Intl.DisplayNames), {
constructor: !0
})
searchLies(Intl.ListFormat, {
constructor: !0
})
searchLies(Intl.NumberFormat, {
constructor: !0
})
searchLies(Intl.PluralRules, {
constructor: !0
})
searchLies(Intl.RelativeTimeFormat, {
constructor: !0
})
searchLies(Function, {
constructor: !0
})
searchLies(caniuse(() => AnalyserNode), {
constructor: !0
})
searchLies(caniuse(() => AudioBuffer), {
constructor: !0
})
searchLies(SVGTextContentElement, {
constructor: !0
})
searchLies(CanvasRenderingContext2D, {
constructor: !0
})
searchLies(caniuse(() => WebGLRenderingContext), {
constructor: !0,
makeXRCompatible: !0, // ignore
})
searchLies(caniuse(() => WebGL2RenderingContext), {
constructor: !0,