【发布时间】:2017-09-20 06:18:14
【问题描述】:
用户选择文本并将其替换为 'a' tag id='NewLink',当他完成对单词或短语的描述时,服务器将获取内容 div 'StartId' 的 innerHTML。我需要忽略用户不会在浏览器中更改客户端的 html 代码。我该怎么做?
function GetSelectedText () {
var sel = window.getSelection();
if( sel.toString().length != 0 && sel.getRangeAt) {
$('#NewLink').replaceWith($('#NewLink').html());
var rng, se, err, errt, patt;
errt = 0;
try {
se=$('<span style="background-color: #3366CC;" id="NewLink">')[0];
rng=sel.getRangeAt(sel.rangeCount-1);
rng.surroundContents(se);
rng.selectNode(document.getElementById("NewLink"));
} catch (err) { errt = 1;}
if(errt != 1)
{
patt=new RegExp("</?a.*?>","g");
if (patt.test($("#NewLink").html()) ||$("#NewLink").closest("a").length||!$("#NewLink").text().replace(/\s/g,"").length)
{$("#NewLink").replaceWith($("#NewLink").html()); }
else { rng.collapse(!0);}
}
}
var StartId = document.getElementById("StartId").innerHTML;
$.post('site.com', {htmlInner:StartId}, function(data) {
alert(data);
});
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="StartId" onmouseup="GetSelectedText ()">
Carnotaurus, a large theropod dinosaur, lived during the Late Cretaceous period. Known from a single well-preserved skeleton found in Argentina, it is a member of the Abelisauridae family<a href="#">and one of the best-understood theropods from the Southern Hemisphere. <br>Carnotaurus (derived from Latin for "meat-eating bull") <br> had thick horns above the eyes, and a very deep skull on a muscular neck.</a> <br>It was a lightly built, bipedal predator, 8 to 9 m (26.2 to 29.5 ft) long, weighing at least 1.35 metric tons (1.49 short tons). It had small, vestigial forelimbs and long and slender hindlimbs. Preserved skin impressions show a mosaic of small scales interrupted by large bumps that lined the sides of the animal. </div>
<div id="EndId"></div>
【问题讨论】:
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用户可以更改 HTML 并仍然操纵请求正文,因此它会显示为客户端并未真正更改测试。请问你为什么需要这个?
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@Alon Eitan,我创建的网站与genius.com/11715748 类似,我需要在数据库中获取一个新的 html 来替换它。
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this answer 会帮助您选择部分吗?因为看起来您的代码已经将实际的 innerHTML 发送到服务器
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@Alon Eitan,如果我只选择字母“a”,我将如何获得文本中的哪一个?这对我没有帮助(
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我想我需要通过加载页面复制 StartId 并将其更改为数据,我试图设置 setStart 和 setEnd 并徒劳地替换那里。
标签: javascript jquery html dom