WSO2 ESB - プロパティストリングのMD5

Question

WSO2 ESBのStringプロパティをMD5で変換し、サービスコールのヘッダーとして設定するにはどうすればよいですか。

私は、このリンク

https://www.w3.org/MarkUp/Forms/wiki/XPath_Expressions_Module#The_digest.28.29_Functionに言われているもので試してみました。

<property expression="xf:digest('abc', 'MD5', 'hex')" 
name="md5_conv" scope="default" type="STRING" xmlns:xf="http://www.w3.org/2002/08/xquery-functions" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"/> 

ただし、以下のエラーがログに記録されます。

Evaluation of the XPath expression xf:digest('abc', 'MD5', 'hex') resulted in an error {org.apache.synapse.util.xpath.SynapseXPath} 
net.sf.saxon.trans.XPathException: Cannot find a matching 3-argument function named {http://www.w3.org/2002/08/xquery-functions}digest() 
     at net.sf.saxon.expr.parser.ExpressionParser.grumble(ExpressionParser.java:263) 
     at net.sf.saxon.expr.parser.ExpressionParser.grumble(ExpressionParser.java:226) 
     at net.sf.saxon.expr.parser.ExpressionParser.reportMissingFunction(ExpressionParser.java:2462) 
     at net.sf.saxon.expr.parser.ExpressionParser.parseFunctionCall(ExpressionParser.java:2379) 
     at net.sf.saxon.expr.parser.ExpressionParser.parseBasicStep(ExpressionParser.java:1731) 

誰でもこれを手伝うことができれば嬉しいです。

ありがとうございます。

Answer 1

あなたは、スクリプトのメディエータの詳細については

<?xml version="1.0" encoding="UTF-8"?> 
<proxy xmlns="http://ws.apache.org/ns/synapse" 
     name="MD5withScriptMediator" 
     startOnLoad="true" 
     statistics="disable" 
     trace="disable" 
     transports="http,https"> 
    <target> 
     <inSequence> 
     <script language="js">var MD5 = function (string) { 
    function RotateLeft(lValue, iShiftBits) { 
     return (lValue&lt;&lt;iShiftBits) | (lValue&gt;&gt;&gt;(32-iShiftBits)); 
    } 

    function AddUnsigned(lX,lY) { 
     var lX4,lY4,lX8,lY8,lResult; 
     lX8 = (lX &amp; 0x80000000); 
     lY8 = (lY &amp; 0x80000000); 
     lX4 = (lX &amp; 0x40000000); 
     lY4 = (lY &amp; 0x40000000); 
     lResult = (lX &amp; 0x3FFFFFFF)+(lY &amp; 0x3FFFFFFF); 
     if (lX4 &amp; lY4) { 
      return (lResult^0x80000000^lX8^lY8); 
     } 
     if (lX4 | lY4) { 
      if (lResult &amp; 0x40000000) { 
       return (lResult^0xC0000000^lX8^lY8); 
      } else { 
       return (lResult^0x40000000^lX8^lY8); 
      } 
     } else { 
      return (lResult^lX8^lY8); 
     } 
    } 

    function F(x,y,z) { return (x &amp; y) | ((~x) &amp; z); } 

    function G(x,y,z) { return (x &amp; z) | (y &amp; (~z)); } 

    function H(x,y,z) { return (x^y^z); } 

    function I(x,y,z) { return (y^(x | (~z))); } 

    function FF(a,b,c,d,x,s,ac) { 
     a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac)); 
     return AddUnsigned(RotateLeft(a, s), b); 
    }; 

    function GG(a,b,c,d,x,s,ac) { 
     a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac)); 
     return AddUnsigned(RotateLeft(a, s), b); 
    }; 

    function HH(a,b,c,d,x,s,ac) { 
     a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac)); 
     return AddUnsigned(RotateLeft(a, s), b); 
    }; 

    function II(a,b,c,d,x,s,ac) { 
     a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac)); 
     return AddUnsigned(RotateLeft(a, s), b); 
    }; 

    function ConvertToWordArray(string) { 
     var lWordCount; 
     var lMessageLength = string.length; 
     var lNumberOfWords_temp1=lMessageLength + 8; 
     var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64; 
     var lNumberOfWords = (lNumberOfWords_temp2+1)*16; 
     var lWordArray=Array(lNumberOfWords-1); 
     var lBytePosition = 0; 
     var lByteCount = 0; 
     while (lByteCount &lt; lMessageLength) { 
      lWordCount = (lByteCount-(lByteCount % 4))/4; 
      lBytePosition = (lByteCount % 4)*8; 
      lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount)&lt;&lt;lBytePosition)); 
      lByteCount++; 
     } 
     lWordCount = (lByteCount-(lByteCount % 4))/4; 
     lBytePosition = (lByteCount % 4)*8; 
     lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80&lt;&lt;lBytePosition); 
     lWordArray[lNumberOfWords-2] = lMessageLength&lt;&lt;3; 
     lWordArray[lNumberOfWords-1] = lMessageLength&gt;&gt;&gt;29; 
     return lWordArray; 
    }; 

    function WordToHex(lValue) { 
     var WordToHexValue="",WordToHexValue_temp="",lByte,lCount; 
     for (lCount = 0;lCount&lt;=3;lCount++) { 
      lByte = (lValue&gt;&gt;&gt;(lCount*8)) &amp; 255; 
      WordToHexValue_temp = "0" + lByte.toString(16); 
      WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length-2,2); 
     } 
     return WordToHexValue; 
    }; 

    function Utf8Encode(string) { 
     string = string.replace(/\r\n/g,"\n"); 
     var utftext = ""; 
     for (var n = 0; n &lt; string.length; n++) { 
      var c = string.charCodeAt(n); 
      if (c &lt; 128) { 
       utftext += String.fromCharCode(c); 
      } 
      else if((c &gt; 127) &amp;&amp; (c &lt; 2048)) { 
       utftext += String.fromCharCode((c &gt;&gt; 6) | 192); 
       utftext += String.fromCharCode((c &amp; 63) | 128); 
      } 
      else { 
       utftext += String.fromCharCode((c &gt;&gt; 12) | 224); 
       utftext += String.fromCharCode(((c &gt;&gt; 6) &amp; 63) | 128); 
       utftext += String.fromCharCode((c &amp; 63) | 128); 
      } 
     } 
     return utftext; 
    }; 
    var x=Array(); 
    var k,AA,BB,CC,DD,a,b,c,d; 
    var S11=7, S12=12, S13=17, S14=22; 
    var S21=5, S22=9 , S23=14, S24=20; 
    var S31=4, S32=11, S33=16, S34=23; 
    var S41=6, S42=10, S43=15, S44=21; 
    string = Utf8Encode(string); 
    x = ConvertToWordArray(string); 
    a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476; 
    for (k=0;k&lt;x.length;k+=16) { 
     AA=a; BB=b; CC=c; DD=d; 
     a=FF(a,b,c,d,x[k+0], S11,0xD76AA478); 
     d=FF(d,a,b,c,x[k+1], S12,0xE8C7B756); 
     c=FF(c,d,a,b,x[k+2], S13,0x242070DB); 
     b=FF(b,c,d,a,x[k+3], S14,0xC1BDCEEE); 
     a=FF(a,b,c,d,x[k+4], S11,0xF57C0FAF); 
     d=FF(d,a,b,c,x[k+5], S12,0x4787C62A); 
     c=FF(c,d,a,b,x[k+6], S13,0xA8304613); 
     b=FF(b,c,d,a,x[k+7], S14,0xFD469501); 
     a=FF(a,b,c,d,x[k+8], S11,0x698098D8); 
     d=FF(d,a,b,c,x[k+9], S12,0x8B44F7AF); 
     c=FF(c,d,a,b,x[k+10],S13,0xFFFF5BB1); 
     b=FF(b,c,d,a,x[k+11],S14,0x895CD7BE); 
     a=FF(a,b,c,d,x[k+12],S11,0x6B901122); 
     d=FF(d,a,b,c,x[k+13],S12,0xFD987193); 
     c=FF(c,d,a,b,x[k+14],S13,0xA679438E); 
     b=FF(b,c,d,a,x[k+15],S14,0x49B40821); 
     a=GG(a,b,c,d,x[k+1], S21,0xF61E2562); 
     d=GG(d,a,b,c,x[k+6], S22,0xC040B340); 
     c=GG(c,d,a,b,x[k+11],S23,0x265E5A51); 
     b=GG(b,c,d,a,x[k+0], S24,0xE9B6C7AA); 
     a=GG(a,b,c,d,x[k+5], S21,0xD62F105D); 
     d=GG(d,a,b,c,x[k+10],S22,0x2441453); 
     c=GG(c,d,a,b,x[k+15],S23,0xD8A1E681); 
     b=GG(b,c,d,a,x[k+4], S24,0xE7D3FBC8); 
     a=GG(a,b,c,d,x[k+9], S21,0x21E1CDE6); 
     d=GG(d,a,b,c,x[k+14],S22,0xC33707D6); 
     c=GG(c,d,a,b,x[k+3], S23,0xF4D50D87); 
     b=GG(b,c,d,a,x[k+8], S24,0x455A14ED); 
     a=GG(a,b,c,d,x[k+13],S21,0xA9E3E905); 
     d=GG(d,a,b,c,x[k+2], S22,0xFCEFA3F8); 
     c=GG(c,d,a,b,x[k+7], S23,0x676F02D9); 
     b=GG(b,c,d,a,x[k+12],S24,0x8D2A4C8A); 
     a=HH(a,b,c,d,x[k+5], S31,0xFFFA3942); 
     d=HH(d,a,b,c,x[k+8], S32,0x8771F681); 
     c=HH(c,d,a,b,x[k+11],S33,0x6D9D6122); 
     b=HH(b,c,d,a,x[k+14],S34,0xFDE5380C); 
     a=HH(a,b,c,d,x[k+1], S31,0xA4BEEA44); 
     d=HH(d,a,b,c,x[k+4], S32,0x4BDECFA9); 
     c=HH(c,d,a,b,x[k+7], S33,0xF6BB4B60); 
     b=HH(b,c,d,a,x[k+10],S34,0xBEBFBC70); 
     a=HH(a,b,c,d,x[k+13],S31,0x289B7EC6); 
     d=HH(d,a,b,c,x[k+0], S32,0xEAA127FA); 
     c=HH(c,d,a,b,x[k+3], S33,0xD4EF3085); 
     b=HH(b,c,d,a,x[k+6], S34,0x4881D05); 
     a=HH(a,b,c,d,x[k+9], S31,0xD9D4D039); 
     d=HH(d,a,b,c,x[k+12],S32,0xE6DB99E5); 
     c=HH(c,d,a,b,x[k+15],S33,0x1FA27CF8); 
     b=HH(b,c,d,a,x[k+2], S34,0xC4AC5665); 
     a=II(a,b,c,d,x[k+0], S41,0xF4292244); 
     d=II(d,a,b,c,x[k+7], S42,0x432AFF97); 
     c=II(c,d,a,b,x[k+14],S43,0xAB9423A7); 
     b=II(b,c,d,a,x[k+5], S44,0xFC93A039); 
     a=II(a,b,c,d,x[k+12],S41,0x655B59C3); 
     d=II(d,a,b,c,x[k+3], S42,0x8F0CCC92); 
     c=II(c,d,a,b,x[k+10],S43,0xFFEFF47D); 
     b=II(b,c,d,a,x[k+1], S44,0x85845DD1); 
     a=II(a,b,c,d,x[k+8], S41,0x6FA87E4F); 
     d=II(d,a,b,c,x[k+15],S42,0xFE2CE6E0); 
     c=II(c,d,a,b,x[k+6], S43,0xA3014314); 
     b=II(b,c,d,a,x[k+13],S44,0x4E0811A1); 
     a=II(a,b,c,d,x[k+4], S41,0xF7537E82); 
     d=II(d,a,b,c,x[k+11],S42,0xBD3AF235); 
     c=II(c,d,a,b,x[k+2], S43,0x2AD7D2BB); 
     b=II(b,c,d,a,x[k+9], S44,0xEB86D391); 
     a=AddUnsigned(a,AA); 
     b=AddUnsigned(b,BB); 
     c=AddUnsigned(c,CC); 
     d=AddUnsigned(d,DD); 
    } 
    var temp = WordToHex(a)+WordToHex(b)+WordToHex(c)+WordToHex(d); 
    return temp.toLowerCase(); 
} 
mc.setPayloadXML(
     &lt;hash&gt; 
      &lt;hashValue&gt;{MD5("lolo")}&lt;/hashValue&gt; 
      &lt;/hash&gt;);</script> 
     <log level="custom"> 
      <property expression="$body" name="HASH..."/> 
     </log> 
     <respond/> 
     </inSequence> 
    </target> 
    <description/> 
</proxy> 

...続くとしてMD5に変換する文字列値のためのJavaScript言語でスクリプトメディエータを使用することができ、このリンクに答えためhttps://docs.wso2.com/display/ESB500/Script+Mediator