所周知,审查元素(F12或者右键检查)的情况下,大家都可以随机更改一部分页面的代码,注入恶意JS等等,这种情况避免也不难,虽然还能看到一部分H5源码,但是无法修改;所以我们可以通过一下三种方式解决问题:
1、屏蔽F12 审查元素;
2、屏蔽右键菜单来初步解决这些问题(也就是解决发现问题的人[偷笑]);
3、在页面引用公共脚本使其自动进行JS调试(debug)。
一、屏蔽F12 审查元素
//一、屏蔽F12 审查元素
document.onkeydown = function () {
if (window.event && window.event.keyCode == 123) {
alert("F12被禁用");
event.keyCode = 0;
event.returnValue = false;
}
if (window.event && window.event.keyCode == 13) {
window.event.keyCode = 505;
}
if (window.event && window.event.keyCode == 8) {
alert(str + "\n请使用Del键进行字符的删除操作!");
window.event.returnValue = false;
}
}
二、屏蔽右键菜单
document.oncontextmenu = function (event) {
if (window.event) {
event = window.event;
} try {
var the = event.srcElement;
if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")) {
return false;
}
return true;
} catch (e) {
return false;
}
}
三、F12自动进行JS调试
((function () {
var callbacks = [],
timeLimit = 50,
open = false;
var str = /x/
str.toString = function () {
window.clearInterval = function () {
return '不能使用清除定时器了'
}
alert('控制台打开')
}
setInterval(loop, 1);
return {
addListener: function (fn) {
callbacks.push(fn);
},
cancleListenr: function (fn) {
callbacks = callbacks.filter(function (v) {
return v !== fn;
});
},
};
function loop() {
var startTime = new Date();
debugger;
if (new Date() - startTime > timeLimit) {
if (!open) {
callbacks.forEach(function (fn) {
fn.call(null);
});
}
open = true;
window.stop();
console.log(str)
alert('不要扒我了');
window.location.reload();
} else {
open = false;
}
}
})()).addListener(function () {
window.location.reload();
});
其他屏蔽项
//一、屏蔽粘贴
document.onpaste = function (event) {
if (window.event) {
event = window.event;
} try {
var the = event.srcElement;
if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")) {
return false;
}
return true;
} catch (e) {
return false;
}
}
//二、屏蔽复制
document.oncopy = function (event) {
if (window.event) {
event = window.event;
} try {
var the = event.srcElement;
if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")) {
return false;
}
return true;
} catch (e) {
return false;
}
}
//三、屏蔽剪切
document.oncut = function (event) {
if (window.event) {
event = window.event;
} try {
var the = event.srcElement;
if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")) {
return false;
}
return true;
} catch (e) {
return false;
}
}
//四、屏蔽选中
document.onselectstart = function (event) {
if (window.event) {
event = window.event;
} try {
var the = event.srcElement;
if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")) {
return false;
}
return true;
} catch (e) {
return false;
}
}