Email地址加密javascript版

拼吾爱程序人生其他编程 javascript Email地址加密javascript版

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2007-08-05 09:53 | 只看楼主

树型| 收藏| 小中大复制帖子链接到剪贴板1F

Email地址加密javascript版

因为垃圾邮件的盛行，所以想把Email地址加密放在网页中，以前用过这样的工具，但昨天一时找不到了，于是上网去找，在天空找着一个这样的加密工具，但结果竟然要注册，这么简单的功能要注册呀，my god " ，于是自己用JS写了一个，非常简单，代码如下：

Code

示例代码如下：

Code

[copy to clipboard]

CODE:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>Email地址加密</title>
<style type="text/css">

</style>
<script language="javascript" type="text/javascript">
function getEmail(email)
{
var r = "";
for (i=0;i<email.length;i++)
{
r += "&#" + email.charCodeAt(i);
}
return r;
}

function setClipboard(id)
{
var tb = document.getElementById(id);
var copytext = tb.value;
if (copytext!="")
{
if (window.clipboardData)
{
window.clipboardData.setData("Text", copytext);
alert("已复制到剪贴板。");
}
else if (window.netscape)
{
setClipboardNetscape(copytext);
alert("已复制到剪贴板。");
}
}
return false;
}

function setClipboardNetscape(text){
var url = [
'data:text/html;charset=utf-8;base64,PGJvZHk+PC9ib2',
'R5PjxzY3JpcHQgdHlwZT0idGV4dC9qYXZhc2NyaXB0Ij4KKGZ1',
'bmN0aW9uKGVuY29kZWQpe3ZhciBzd2ZfZGF0YSA9IFsKICdkYX',
'RhOmFwcGxpY2F0aW9uL3gtc2hvY2t3YXZlLWZsYXNoO2Jhc2U2',
'NCxRMWRUQjJ3JywKICdBQUFCNG5EUGdZbGpBd01qSTRNejAlMk',
'YlMkY5JTJGZTJaZkJnYUdhV3dNRE1uNUthJywKICdrTU10TjRH',
'ZGdaZ1NJTXdaWEZKYW01UUFFJTJCQm9iaTFCTG5uTXlDcFB6RW',
'9oU0dJJywKICdQRnAlMkZBeHNEREJRa3BGWkRGUUZGQ2d1eVM4',
'QXlqSTRBRVVCaXkwVndBJTNEJTNEJwpdLmpvaW4oIiIpOwpkb2',
'N1bWVudC5ib2R5LmlubmVySFRNTCA9IFsKICc8ZW1iZWQgc3Jj',
'PSInLHN3Zl9kYXRhLCciICcsCiAnRmxhc2hWYXJzPSJjb2RlPS',
'csZW5jb2RlZCwnIj4nLAogJzwvZW1iZWQ+JwpdLmpvaW4oIiIp',
'Owp9KSgi',
base64encode( encodeURIComponent(text) + '")</'+'script>')
].join("");
var tmp = document.createElement("div");
tmp.innerHTML = [
'<iframe src="',url,'"'
,' width="0" height="0">'
,'</iframe>'
].join("");
with(tmp.style){
position ="absolute";
left = "-10px";
top = "-10px";
visibility = "hidden";
};
document.body.appendChild(tmp);
setTimeout(function(){document.body.removeChild(tmp)},1000);
function base64encode(str){
var Chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".split("");
var c1, c2, c3;
var buf = [];
var len = str.length;
var i = 0;
while(i < len){
c1 = str.charCodeAt(i) & 0xff;
c2 = str.charCodeAt(i+1);
c3 = str.charCodeAt(i+2);
buf.push(Chars[(c1 >> 2)]);
if(i+1 == len){
buf.push(Chars[(c1 & 0x3) << 4],"==");
break;
}
buf.push(Chars[((c1 & 0x3) << 4) | ((c2 & 0xF0) >> 4)]);
if(i+2 == len){
buf.push(Chars[(c2 & 0xF) << 2],"=");
break;
}
buf.push(
Chars[((c2 & 0xF) << 2) | ((c3 & 0xC0) >> 6)],
Chars[(c3 & 0x3F)]
);
i+=3;
}
return buf.join("")
}
}
</script>
</head>
<body>
<strong>Email地址加密</strong>

Email:
<input name="email" type="text" id="email" size="50" />
<input type="button" name="Submit" value=" 加密 " onclick="document.getElementById('export').value=getEmail(document.getElementById('email').value)"/>

<input type="button" name="Submit2" value=" 验证 " onclick="document.getElementById('preview').innerHTML=getEmail(document.getElementById('email').value)"/> <span id="preview" style="color:#FF0000"></span >

结果:
<input name="export" type="text" id="export" size="76" onclick="setClipboard(this.id)" onmouseover="javascript:this.select();" title="单击此处复制内容"/>
</body>
</html>