[js practice every m days] JS export object analysis based on libcef application (steam)

Reading guide

More and more third-party software is being used in the market cef Client development , To enrich software functions , These software generally encapsulate some global variables , This way down ：

In this way windows There are twoorthree such objects under the object , How to find a custom blue marker api Well ？

programme

• Name all of the target software window Object's keys, Write it down as cefKeys;
• Enumerate the... Of any web site window Object's keys, Write it down as defaultKeys;
• Two arrays cefKeys About defaultKeys Of Relative complement ,cefKeys - defaultKeys.

Realization

Target software window Object's keys obtain

Here we need to pay attention to , Because the data is larger than 100 individual , There is no way to copy the data , We can only convert the data to a string and copy it out .

Direct execution Object.keys(window).toString(), The end result is as follows ：

Copy the results , Put it on another console , Then it can be parsed into an array ,var cefKeys = "*********".split(',').

Find the complement

//  Get the of a web page windows
var defaultKeys = Object.keys(window);

//  Find the complement 
var ret = cefKeys.filter(x => -1==defaultKeys.indexOf(x));

//  Print the sorted results 
console.log(ret.sort());

The effect is as follows , These are the libcef Application , The global object used ：

Comprehensive case ： Print libcef Global object attributes in the application

stay libcef Execute the following code in the application ：

//  Get the of a web page windows
var defaultKeys = 'window,self,document,name,location,customElements,history,locationbar,menubar,personalbar,scrollbars,statusbar,toolbar,status,closed,frames,length,top,opener,parent,frameElement,navigator,origin,external,screen,innerWidth,innerHeight,scrollX,pageXOffset,scrollY,pageYOffset,visualViewport,screenX,screenY,outerWidth,outerHeight,devicePixelRatio,clientInformation,screenLeft,screenTop,defaultStatus,defaultstatus,styleMedia,onsearch,isSecureContext,performance,onappinstalled,onbeforeinstallprompt,crypto,indexedDB,webkitStorageInfo,sessionStorage,localStorage,onbeforexrselect,onabort,onblur,oncancel,oncanplay,oncanplaythrough,onchange,onclick,onclose,oncontextmenu,oncuechange,ondblclick,ondrag,ondragend,ondragenter,ondragleave,ondragover,ondragstart,ondrop,ondurationchange,onemptied,onended,onerror,onfocus,onformdata,oninput,oninvalid,onkeydown,onkeypress,onkeyup,onload,onloadeddata,onloadedmetadata,onloadstart,onmousedown,onmouseenter,onmouseleave,onmousemove,onmouseout,onmouseover,onmouseup,onmousewheel,onpause,onplay,onplaying,onprogress,onratechange,onreset,onresize,onscroll,onseeked,onseeking,onselect,onstalled,onsubmit,onsuspend,ontimeupdate,ontoggle,onvolumechange,onwaiting,onwebkitanimationend,onwebkitanimationiteration,onwebkitanimationstart,onwebkittransitionend,onwheel,onauxclick,ongotpointercapture,onlostpointercapture,onpointerdown,onpointermove,onpointerup,onpointercancel,onpointerover,onpointerout,onpointerenter,onpointerleave,onselectstart,onselectionchange,onanimationend,onanimationiteration,onanimationstart,ontransitionrun,ontransitionstart,ontransitionend,ontransitioncancel,onafterprint,onbeforeprint,onbeforeunload,onhashchange,onlanguagechange,onmessage,onmessageerror,onoffline,ononline,onpagehide,onpageshow,onpopstate,onrejectionhandled,onstorage,onunhandledrejection,onunload,alert,atob,blur,btoa,cancelAnimationFrame,cancelIdleCallback,captureEvents,clearInterval,clearTimeout,close,confirm,createImageBitmap,fetch,find,focus,getComputedStyle,getSelection,matchMedia,moveBy,moveTo,open,postMessage,print,prompt,queueMicrotask,releaseEvents,reportError,requestAnimationFrame,requestIdleCallback,resizeBy,resizeTo,scroll,scrollBy,scrollTo,setInterval,setTimeout,stop,webkitCancelAnimationFrame,webkitRequestAnimationFrame,chrome,caches,cookieStore,ondevicemotion,ondeviceorientation,ondeviceorientationabsolute,showDirectoryPicker,showOpenFilePicker,showSaveFilePicker,originAgentCluster,trustedTypes,speechSynthesis,onpointerrawupdate,crossOriginIsolated,scheduler,openDatabase,webkitRequestFileSystem,webkitResolveLocalFileSystemURL,hashMatch,bds,isOldIE,al_arr,selfOpen,isIE,E,detectIntervals,G,ns_c_pj,ns_c,A,__perf_www_datas,imgErrList,imgErrFun,cbs,ts,bdUser,bdQuery,bdUseFavo,bdFavoOn,bdCid,bdSid,bdServerTime,bdQid,bdstoken,_eclipse,login_success,$,jQuery,define,require,esl,Cookie,UPS,__restart_confirm_timeout,__confirm_timeout,__disable_is_guide,__disable_swap_to_empty,__switch_add_mask,__extends,__assign,__rest,__decorate,__param,__metadata,__awaiter,__generator,__exportStar,__values,__read,__spread,__spreadArrays,__await,__asyncGenerator,__asyncDelegator,__asyncValues,__makeTemplateObject,__importStar,__importDefault,__classPrivateFieldGet,__classPrivateFieldSet,__createBinding,addEV,_aMC,al_c,al_c2,c,TagQ,h,escapeHTML,initPreload,user_c,initPassV3,isp_hijack,isbase64,formatDate,baseChangeUrl,langChangeUrl,advChangeUrl,fileChangeUrl,queryReplace,extChangeUrl,domain,sethfPos,__callback_names,ie,ie6,url,skinDefer,langfilterTip,timefilterTip,fileTypeTip,insideSearchTip,jQuery110204841899757731367,initResultClickLog,fa,_invoke_login,browser,browserversion,browsertype,os,isWinVista,osversion,PRE_CONN,ctwin,icodetest,searchUiPcNode,searchUiPc,b_rec,scr_rec,reh_rec,hash,setSugKey,getCursortPosition,changeUrl,pageState,PDC_ASYNC,winFilter,BD_PS_C1644926387321,BD_PS_C1644926387344,v,_WWW_SRV_T,$body,__core-js_shared__,bdDataLayer,toast,setImmediate,clearImmediate,cssLinks,$scopeId,ngInspector,delayHideOnTip,delayShowOnTip,delayHideOnIcon,BD_PS_C1644926394536,jQuery110204841899757731367_1644926387224,BD_PS_C1644926410732,param,oldEnv,currentScriptElem,tplname,bd_cb_dict3_1644929345235,clickstream,BD_PS_C1644929345307,cfpromise,BD_PS_C1644929345345,swap_wait,core,_,bd_cb_dict3_1644930121647,BD_PS_C1644930121702,BD_PS_C1644930121729,BD_PS_C1644930128706,BD_PS_C1644930128726,BD_PS_C1644931438676,BD_PS_C1644931444073,BD_PS_C1644931444093,BD_PS_C1644931445203,BD_PS_C1644931776983,BD_PS_C1644931777009,BD_PS_C1644931783049,BD_PS_C1644931784101,wd,nsclickDomain,BD_PS_C1644932847342,img,src,BD_PS_C1644932965801,BD_PS_C1644933004323,BD_PS_C1644933056952,BD_PS_C1644933065939,BD_PS_C1644933065961,BD_PS_C1644933072325,BD_PS_C1644933758701,BD_PS_C1644933758720,BD_PS_C1644933759807'.split(',')

var cefKeys = Object.keys(window)

//  Find the complement 
var ret = cefKeys.filter(x => -1==defaultKeys.indexOf(x));

//  Print the sorted results 
ret = ret.sort()
console.log(ret);

var log = '';
for (var idx in ret) {
    
	var name=ret[idx];
	log += '\n\n=========================================== ' + name + '\n';
	var lst_prop = []
	var obj = window[name];
	if (typeof obj == "object") {
    
		for(var k in obj) {
    
		    lst_prop.push(k);
		    log += lst_prop.toString();
		}
	}
}
console.log(log);

One knowledge point is attached ： Get object properties ：

• window[name] Equivalent to
• Object.getOwnPropertyDescriptor(window, name).value

Reference material

• js use Set Realize Union （Union）、 intersection （Intersect） And subtraction （Difference） https://blog.csdn.net/mhbsoft/article/details/81487826
• qq Group ： Night owl dream chasing technology exchange skirt /953949723