Developer Tools Detection

devtools-detect.js

/**
 * Disable Developer Tool, HotKeys: Ctrl+Shift+I, ⌘+⌥+I, F12
 * Disable to View Source Code of Page by Developer Tools.
 **/
function disableDeveloperTool() {

	hotkeys( 'command+option+j,command+option+i,command+shift+c,command+option+c,command+option+k,command+option+z,command+option+e,f12,ctrl+shift+i,ctrl+shift+j,ctrl+shift+c,ctrl+shift+k,ctrl+shift+e,shift+f7,shift+f5,shift+f9,shift+f12', function( event, handler ) {
		event.preventDefault();
	} );

	(function () {
		if ( typeof window.CustomEvent === "function" ) return false;

		function CustomEvent( event, params ) {
			params = params || { bubbles: false, cancelable: false, detail: undefined };
			var evt = document.createEvent( "CustomEvent" );
			evt.initCustomEvent( event, params.bubbles, params.cancelable, params.detail );
			return evt
		}

		CustomEvent.prototype = window.Event.prototype;
		window.CustomEvent = CustomEvent
	})();

	(function () {
		'use strict';
		var devtools = {
			open: false,
			orientation: null
		};
		var threshold = 160;
		var emitEvent = function (state, orientation) {
			window.dispatchEvent(new CustomEvent('devtoolschange', {
				detail: {
					open: state,
					orientation: orientation
				}
			}));
		};

		setInterval(function () {
			var widthThreshold = window.outerWidth - window.innerWidth > threshold;
			var heightThreshold = window.outerHeight - window.innerHeight > threshold;
			var orientation = widthThreshold ? 'vertical' : 'horizontal';

			if (!(heightThreshold && widthThreshold) &&
				((window.Firebug && window.Firebug.chrome && window.Firebug.chrome.isInitialized) || widthThreshold || heightThreshold)) {
				if (!devtools.open || devtools.orientation !== orientation) {
					emitEvent(true, orientation);
				}

				devtools.open = true;
				devtools.orientation = orientation;
			} else {
				if (devtools.open) {
					emitEvent(false, null);
				}

				devtools.open = false;
				devtools.orientation = null;
			}
		}, 500);

		if (typeof module !== 'undefined' && module.exports) {
			module.exports = devtools;
		} else {
			window.devtools = devtools;
		}
	})();

	let element = new Image;
	let ua = navigator.userAgent.toLowerCase();
	let msie = ua.indexOf( "msie" ) > -1 || ua.indexOf( "edge/" ) > -1;
	if ( ! msie && navigator.appName === "Netscape" && ua.indexOf( "trident/" ) > -1 ) { msie = true; }
	var chrome = ! msie && ua.indexOf( "chrome" ) > -1;
	var safari = ! chrome && ! msie && ua.indexOf( "safari" ) > -1;
	let consoleMsg = "No source code for you! Close the console to refresh the page :)";
	let consoleStyle = "background: black; color: transparent; font-size: 0px;";

	let deb = 0;
	let timerMax = 500;
	let utm = '__utmq';

	/** Renamed console.log to soleCon.go */
	let soleCon = clone( console );

	/** Copy and rename console.log to soleCon.go */
	function clone( obj ) {
		if ( null == obj || "object" != typeof obj ) { return obj; }
		let copy = obj.constructor();
		for ( let attr in obj ) {
			if ( obj.hasOwnProperty( attr ) ) {
				copy[attr === "log" ? "go" : attr] = obj[attr];
			}
		}
		return copy;
	}

	function opened() {
		rmbody();
	}

	function closed() {
		noconsole();
		location.reload();
	}

	function noconsole2() {
		noconsole();
	}

	function noconsole() {
		if ( readCookie( utm ) === '1' ) { return; }
		createCookie( utm, 1, 365 * 10 );
		if ( inIframe() ) { return; }
		location.reload();
	}

	function inIframe () {
		try {
			return window.self !== window.top;
		} catch (e) {
			return true;
		}
	}

	function egg8log( arg ) {

		if ( msie ) {

			arg ? soleCon.go( consoleMsg, arg ) : soleCon.go( consoleMsg );

		} else {

			arg ? soleCon.go( "%c" + consoleMsg, consoleStyle, arg ) : soleCon.go( "%c" + consoleMsg, consoleStyle )

		}

	}

	if ( readCookie( utm ) !== '1' ) {

		let noconyet = 0;
		let threshold = 160;
		let widthThreshold = window.outerWidth - window.innerWidth > threshold;
		let heightThreshold = window.outerHeight - window.innerHeight > threshold;
		let orientation = widthThreshold ? "vertical" : "horizontal";

		if ( !(heightThreshold && widthThreshold) &&
			(window.Firebug && window.Firebug.chrome && window.Firebug.chrome.isInitialized || widthThreshold || heightThreshold) ) {

			if ( ! devtools.open || devtools.orientation !== orientation ) {}

		} else {

			noconsole();
			noconyet = 1;

		}
	}
	dtToStr();

	element.__defineGetter__( 'id', function () {
		if ( intr ) { clearTimeout( intr ); }
		rmbody();
		setTimeout( noconsole2, timerMax * 1.5 );
	} );

	window.addEventListener( 'devtoolschange', function ( e ) {

		if ( e.detail.open ) {
			rmbody();
			egg8log();
		} else {
			noconsole();
		}

	} );

	/** Remove Document body on devtools open. */
	function rmbody() {

		if ( document.body != null ) {
			document.body.parentNode.removeChild( document.body );
		}

		if ( document.head != null ) {
			document.head.parentNode.removeChild( document.head );
		}

	}

	function dtToStr() {

		let cnt = 0;
		let open = 0;

		if ( ! safari && ! chrome ) { return; }

		let isOpen = () => cnt > (safari ? 0 : chrome ? 1 : 1);

		let w = new Function;
		w.toString = () => {
			cnt++;
			checkOpen()
		};

		let test = () => {
			checkClosed();
			cnt = 0;
			egg8log( w );
		};

		let checkOpen = () => {

			if ( isOpen() && ! open ) {

				open = 1;
				opened();

			}

		};

		let checkClosed = () => {

			if ( ! isOpen() && open ) {

				open = 0;
				closed();

			}

		};

		setInterval( test, 500 );

	}

	function createCookie( name, value, days ) {

		if ( days > 0 ) { eraseCookie( name ); }

		let expires = '';
		if ( days ) {

			let date = new Date;
			date.setTime( date.getTime() + days * 24 * 60 * 60 * 1000 );

			expires = "; expires=" + date.toGMTString();

		}

		document.cookie = name + "=" + value + expires + "; path=/"

	}

	function readCookie( name ) {

		let nameEQ = name + "=";
		let ca = document.cookie.split( ";" );

		for ( let i = 0; i < ca.length; i++ ) {

			let c = ca[i];
			while ( c.charAt( 0 ) === ' ' ) {
				c = c.substring( 1, c.length );
			}

			if ( c.indexOf( nameEQ ) === 0 ) {

				return c.substring( nameEQ.length, c.length );

			}

		}

		return null

	} 

	function eraseCookie( name ) {

		createCookie( name, '', -1 );

	}

}