ColdFusion:无效的XML控件字符(十六进制)

时间:2012-12-06 13:25:58

标签: xml coldfusion char hex

我正在尝试使用<cfxml>创建一个xml对象。我用XMLFormat()格式化了所有数据。 在XML中有一些无效字符,如'»'。我将这些字符添加到xml doctype中,如下所示:

<!ENTITY raquo "»">

HTML文本格式不是很好,但大多数都适用于我的代码。但在某些文本中有一些控制字符。我收到以下错误:

在文档的元素内容中找到了无效的XML字符(Unicode:0x13)。

我尝试将unicode添加到doctype中,然后尝试了solution。两者都不起作用......

3 个答案:

答案 0 :(得分:2)

这是有效的cfscript代码,用于清理我们的XML,有两种方法,一种清除较高的国际字符,另一种只清除破坏XML的较低的ASCII字符,如果找到更多的字符,只需展开过滤规则。

<cfscript>    
    function cleanHighAscii(text){
        var buffer = createObject("java", "java.lang.StringBuffer").init();
        var pattern = createObject("java", "java.util.regex.Pattern").compile(javaCast( "string", "[^\x00-\x7F]" ));
        var matcher = pattern.Matcher(javaCast( "string", text));

        while(matcher.find()){
            var value = matcher.group();
            var asciiValue = asc(value);

            if ((asciiValue == 8220) OR (asciiValue == 8221))
                value = """";
            else if ((asciiValue == 8216) || (asciiValue == 8217))
                value = "'";
            else if (asciiValue == 8230)
                value = "...";
            else
                value = "&###asciiValue#;";

            matcher.AppendReplacement(buffer, javaCast( "string", value ));
        }

        matcher.AppendTail(buffer);
        return buffer.ToString();
    }

    function removeSubAscii(text){

        return rereplaceNoCase(text, "\x1A","&###26#;", "all");
    }

    function XMLSafe(text){
        text = cleanHighAscii(text);
        text = removeSubAscii(text);
        return text;
    }
</cfscript>

其他posisbilty是用户CF10函数encodeForXML():

https://learn.adobe.com/wiki/display/coldfusionen/EncodeForXML

或直接使用CF10附带的ESAPI或从OWASP网站https://www.owasp.org/index.php/ESAPI_Overview向您的旧CF添加ESAPI jar:

var esapi = createObject("java", "org.owasp.esapi.ESAPI");
var esapiEncoder = esapi.encoder();
return esapiEncoder.encodeForXML(text);

答案 1 :(得分:0)

尝试使用&#187;代替»。例如,这个CFML:

<cfxml variable="x"><?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE doc
[
    <!ENTITY raquo "&#187;">
]>
<doc>
    Hello, &raquo; !
</doc>
</cfxml>

<cfdump var="#x#">

答案 2 :(得分:-1)

将XML字符串传递给此方法,这将解决您的问题。

它只允许在输入中发送有效字符,如果你想用其他字符替换invalids,你可以修改下面的方法来做到这一点

public String stripNonValidXMLCharacters(String in) {
    StringBuffer out = new StringBuffer(); // Used to hold the output.
    char current; // Used to reference the current character.

    if (in == null || ("".equals(in))) return ""; // vacancy test.
    for (int i = 0; i < in.length(); i++) {
        current = in.charAt(i);
        if ((current == 0x9) ||
            (current == 0xA) ||
            (current == 0xD) ||
            ((current >= 0x20) && (current <= 0xD7FF)) ||
            ((current >= 0xE000) && (current <= 0xFFFD)) ||
            ((current >= 0x10000) && (current <= 0x10FFFF)))
            out.append(current);
    }
    return out.toString();
}