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Classic ASP

XML Exclusive Canonicalization

See more XML Digital Signatures Examples

Demonstrates how to convert XML to the Exclusive XML Canonicalization form as specified in http://www.w3.org/TR/xml-exc-c14n/

Chilkat Classic ASP Downloads

Classic ASP
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

' The XML digital signature verification class provides utility methods for
' XML canonicalization.  This example demonstrates how to do exclusive XML canonicalization.

' This example will show many sample XML inputs and outputs.  The input XML files are available online
' as shown in this example.

set http = Server.CreateObject("Chilkat.Http")
set sbXml = Server.CreateObject("Chilkat.StringBuilder")
set canon = Server.CreateObject("Chilkat.XmlDSig")

' Use exclusive XML canonicalization.
canonVersion = "EXCL_C14N"
withComments = 0

div1 = "--------------- input ---------------"
div2 = "--------------- canonicalized output ---------------"

set sbUrl = Server.CreateObject("Chilkat.StringBuilder")

i = 1
Do While i < 20
    success = sbUrl.SetString("https://www.chilkatsoft.com/exampleData/c14n/testTESTNUMBER.xml")
    numReplaced = sbUrl.ReplaceI("TESTNUMBER",i)

    success = http.QuickGetSb(sbUrl.GetAsString(),sbXml)
    If (success = 1) Then
        xmlCanon = canon.CanonicalizeXml(sbXml.GetAsString(),canonVersion,withComments)

        Response.Write "<pre>" & Server.HTMLEncode( "---- Test " & i & " ----") & "</pre>"
        Response.Write "<pre>" & Server.HTMLEncode( div1) & "</pre>"
        Response.Write "<pre>" & Server.HTMLEncode( sbXml.GetAsString()) & "</pre>"
        Response.Write "<pre>" & Server.HTMLEncode( div2) & "</pre>"
        Response.Write "<pre>" & Server.HTMLEncode( xmlCanon) & "</pre>"
        Response.Write "<pre>" & Server.HTMLEncode( " ") & "</pre>"
    End If

    i = i + 1
Loop

' The output of this program is:

' 
' ---- Test 1 ----
' --------------- input ---------------
' <?xml version="1.0"?>
' 
' <?xml-stylesheet   href="doc.xsl"
'    type="text/xsl"   ?>  
' 
' <!DOCTYPE doc SYSTEM "doc.dtd">
' 
' <doc>Hello, world!<!-- Comment 1 --></doc>
' 
' <?pi-without-data     ?>
' 
' <!-- Comment 2 -->
' 
' <!-- Comment 3 -->
' --------------- canonicalized output ---------------
' <?xml-stylesheet href="doc.xsl"
'    type="text/xsl"   ?>
' <doc>Hello, world!</doc>
' <?pi-without-data?>
'  
' ---- Test 2 ----
' --------------- input ---------------
' <?xml version="1.0"?>
' 
' <?xml-stylesheet   href="doc.xsl"
'    type="text/xsl"   ?>  
' 
' <doc>Hello, world!<fish name="goldie"   type = "goldfish"   color='gold'    /></doc>
' 
' <?pi-without-data     ?>
' 
' 
' --------------- canonicalized output ---------------
' <?xml-stylesheet href="doc.xsl"
'    type="text/xsl"   ?>
' <doc>Hello, world!<fish color="gold" name="goldie" type="goldfish"></fish></doc>
' <?pi-without-data?>
'  
' ---- Test 3 ----
' --------------- input ---------------
' <doc>
'    <clean>   </clean>
'    <dirty>   A   B   </dirty>
'    <mixed>
'       A
'       <clean>   </clean>
'       B
'       <dirty>   A   B   </dirty>
'       C
'    </mixed>
' </doc> 
' --------------- canonicalized output ---------------
' <doc>
'    <clean>   </clean>
'    <dirty>   A   B   </dirty>
'    <mixed>
'       A
'       <clean>   </clean>
'       B
'       <dirty>   A   B   </dirty>
'       C
'    </mixed>
' </doc>
'  
' ---- Test 4 ----
' --------------- input ---------------
' <!DOCTYPE doc [
' <!ATTLIST normId id ID #IMPLIED>
' <!ATTLIST normNames attr NMTOKENS #IMPLIED>
' ]>
' <doc>
'    <text>First line&#x0d;&#10;Second line</text>
'    <value>&#x32;</value>
'    <compute><![CDATA[value>"0" && value<"10" ?"valid":"error"]]></compute>
'    <compute expr='value>"0" &amp;&amp; value&lt;"10" ?"valid":"error"'>valid</compute>
'    <norm attr=' &apos;   &#x20;&#13;&#xa;&#9;   &apos; '/>
'    <normNames attr='   A   &#x20;&#13;&#xa;&#9;   B   '/>
'    <normId id=' &apos;   &#x20;&#13;&#xa;&#9;   &apos; '/>
' </doc>
' 
' --------------- canonicalized output ---------------
' <doc>
'    <text>First line&#xD;
' Second line</text>
'    <value>2</value>
'    <compute>value&gt;"0" &amp;&amp; value&lt;"10" ?"valid":"error"</compute>
'    <compute expr="value>&quot;0&quot; &amp;&amp; value&lt;&quot;10&quot; ?&quot;valid&quot;:&quot;error&quot;">valid</compute>
'    <norm attr=" '    &#xD;&#xA;&#x9;   ' "></norm>
'    <normNames attr="A &#xD;&#xA;&#x9; B"></normNames>
'    <normId id="' &#xD;&#xA;&#x9; '"></normId>
' </doc>
'  
' ---- Test 5 ----
' --------------- input ---------------
' <doc>
'   <lizard type="gecko &amp; african" abc="&amp; test &quot;" />
'   <snake type="poisonous rattler" />
' </doc>
' 
' --------------- canonicalized output ---------------
' <doc>
'   <lizard abc="&amp; test &quot;" type="gecko &amp; african"></lizard>
'   <snake type="poisonous rattler"></snake>
' </doc>
'  
' ---- Test 6 ----
' --------------- input ---------------
' <doc>
' <!-- A namespace node N is ignored if the nearest ancestor element of the node's parent element that is in the node-set has a namespace node in the node-set with the same local name and value as N. -->
' 	<animal xmlns="" xmlns:aa="https://www.animal.com/">
' 		<reptile xmlns:cc="https://www.herpetology.com/" xmlns:bb="https://www.reptile.com/">
'   			<lizard type="african fat tailed" abc="xyz" xmlns:aa="https://www.animal.com/" />
'   			<snake type="poisonous rattler" xmlns:bb="https://www.reptile.com/" >
'   				<cobra bb:name="benny" />
'   			</snake>
'   		</reptile>
'   	</animal>
' </doc>
' 
' --------------- canonicalized output ---------------
' <doc>
' 
' 	<animal>
' 		<reptile>
'   			<lizard abc="xyz" type="african fat tailed"></lizard>
'   			<snake type="poisonous rattler">
'   				<cobra xmlns:bb="https://www.reptile.com/" bb:name="benny"></cobra>
'   			</snake>
'   		</reptile>
'   	</animal>
' </doc>
'  
' ---- Test 7 ----
' --------------- input ---------------
' <doc>
' <!-- A namespace node N is ignored if the nearest ancestor element of the node's parent element that is in the node-set has a namespace node in the node-set with the same local name and value as N. -->
' 	<animal xmlns:aa="https://www.animal.com/">
' 		<reptile xmlns:bb="https://www.reptile.com/">
'   			<lizard xmlns="" type="african fat tailed" abc="xyz" xmlns:aa="https://www.animal.com/" />
'   			<snake type="poisonous rattler" xmlns:bb="https://www.reptile.com/" >
'   			</snake>
'   		</reptile>
'   	</animal>
' </doc>
' 
' --------------- canonicalized output ---------------
' <doc>
' 
' 	<animal>
' 		<reptile>
'   			<lizard abc="xyz" type="african fat tailed"></lizard>
'   			<snake type="poisonous rattler">
'   			</snake>
'   		</reptile>
'   	</animal>
' </doc>
'  
' ---- Test 8 ----
' --------------- input ---------------
' <doc>
' <!-- generate a space followed by xmlns="" if and only if the following conditions are met:
' 
'     the element E that owns the axis is in the node-set
'     The nearest ancestor element of E in the node-set has a default namespace node in the node-set (default namespace nodes always have non-empty values in XPath)
'  -->
' 	<animal xmlns="https://www.animal.com/">
' 		<reptile xmlns:bb="https://www.reptile.com/">
'   			<lizard xmlns="" type="african fat tailed" abc="xyz" xmlns:bb="https://www.reptile222.com/" >
'   				<myPet xmlns:bb="https://www.reptile.com/">larry</myPet>
'   			</lizard>
'   			<snake type="poisonous rattler" xmlns:bb="https://www.reptile.com/" >
'   			</snake>
'   		</reptile>
'   	</animal>
' </doc>
' 
' --------------- canonicalized output ---------------
' <doc>
' 
' 	<animal xmlns="https://www.animal.com/">
' 		<reptile>
'   			<lizard xmlns="" abc="xyz" type="african fat tailed">
'   				<myPet>larry</myPet>
'   			</lizard>
'   			<snake type="poisonous rattler">
'   			</snake>
'   		</reptile>
'   	</animal>
' </doc>
'  
' ---- Test 9 ----
' --------------- input ---------------
' <!DOCTYPE doc [<!ATTLIST e9 attr CDATA "default">]>
' <doc>
'    <e1   />
'    <e2   ></e2>
'    <e3   name = "elem3"   id="elem3"   />
'    <e4   name="elem4"   id="elem4"   ></e4>
'    <e5 a:attr="out" b:attr="sorted" attr2="all" attr="I'm"
'       xmlns:b="http://www.ietf.org"
'       xmlns:a="http://www.w3.org"
'       xmlns="http://example.org"/>
'    <e6 xmlns="" xmlns:a="http://www.w3.org">
'       <e7 xmlns="http://www.ietf.org">
'          <e8 xmlns="" xmlns:a="http://www.w3.org">
'             <e9 xmlns="" xmlns:a="http://www.ietf.org"/>
'          </e8>
'       </e7>
'    </e6>
' </doc>       
' --------------- canonicalized output ---------------
' <doc>
'    <e1></e1>
'    <e2></e2>
'    <e3 id="elem3" name="elem3"></e3>
'    <e4 id="elem4" name="elem4"></e4>
'    <e5 xmlns="http://example.org" xmlns:a="http://www.w3.org" xmlns:b="http://www.ietf.org" attr="I'm" attr2="all" b:attr="sorted" a:attr="out"></e5>
'    <e6>
'       <e7 xmlns="http://www.ietf.org">
'          <e8 xmlns="">
'             <e9 attr="default"></e9>
'          </e8>
'       </e7>
'    </e6>
' </doc>
'  
' ---- Test 10 ----
' --------------- input ---------------
' <?xml version="1.0" encoding="UTF-8"?>
' 
' <!DOCTYPE note [
' <!ENTITY nbsp "&#xA0;">
' <!ENTITY author "Donald Duck">
' <!ENTITY writer "Writer: &author;.">
' <!ENTITY copyright "Copyright: &lt; > Chilkat.">
' <!ATTLIST OPTIONS
' 	FINISH (Metal|Polished|Matte) "Matte"
' 	ADAPTER (Included|Optional|NotApplicable) "Included"
' 	CASE (HardShell|Soft|NotApplicable) "HardShell">
' 
' <!ATTLIST footer
'    src    CDATA          #REQUIRED
'    id     ID             #IMPLIED
'    sort   CDATA          #FIXED "true"
'    print  (yes | no) "yes"
' >
' <!ENTITY myEntityA "Some Entity Value A">
' <!ENTITY myEntityB "Some Entity Value B">
' ]>
' 
' <note>
' <OPTIONS/>
' <to>Tove &#xA0; &#xE1; &amp; &lt; &gt; &apos; &quot; " ' ></to>
' <from eTest="&amp; &#xA0; &#xE1; &lt; > &gt; &apos; ' &quot; ">Jani</from>
' <heading myEntityTest="&myEntityA;">Reminder</heading>
' <body>Don't forget me this weekend!</body>
' <footer>&writer;&nbsp;&copyright;</footer>
' <footer print="no">&writer;&nbsp;&copyright;</footer>
'    <someCData><![CDATA[
'       &amp; &lt; &gt; &apos; &quot; 
'       " ' & < >
'       This is a test.
' ]]></someCData>
'    <someText>
'       &amp; &lt; &gt; &apos; &quot; 
'       " '   >
'       This is a test.     
'    </someText>
' </note>
' --------------- canonicalized output ---------------
' <note>
' <OPTIONS ADAPTER="Included" CASE="HardShell" FINISH="Matte"></OPTIONS>
' <to>Tove � � &amp; &lt; &gt; ' " " ' &gt;</to>
' <from eTest="&amp; � � &lt; > > ' ' &quot; ">Jani</from>
' <heading myEntityTest="Some Entity Value A">Reminder</heading>
' <body>Don't forget me this weekend!</body>
' <footer print="yes" sort="true">Writer: Donald Duck.�Copyright: &lt; &gt; Chilkat.</footer>
' <footer print="no" sort="true">Writer: Donald Duck.�Copyright: &lt; &gt; Chilkat.</footer>
'    <someCData>
'       &amp;amp; &amp;lt; &amp;gt; &amp;apos; &amp;quot; 
'       " ' &amp; &lt; &gt;
'       This is a test.
' </someCData>
'    <someText>
'       &amp; &lt; &gt; ' " 
'       " '   &gt;
'       This is a test.     
'    </someText>
' </note>
'  
' ---- Test 11 ----
' --------------- input ---------------
' <?xml version="1.0" encoding="UTF-8"?>
' 
' <!DOCTYPE note [
' <!ENTITY nbsp "&#xA0;">
' <!ENTITY writer "Writer: Donald Duck.">
' <!ENTITY copyright "Copyright: &lt; > Chilkat.">
' <!ATTLIST OPTIONS
' 	FINISH (Metal|Polished|Matte) "Matte"
' 	ADAPTER (Included|Optional|NotApplicable) "Included"
' 	CASE (HardShell|Soft|NotApplicable) "HardShell">
' 
' <!ATTLIST footer
'    src    CDATA          #REQUIRED
'    id     ID             #IMPLIED
'    sort   CDATA          #FIXED "true"
'    print  (yes | no) "yes"
' >
' <!ENTITY myEntityA "Some Entity Value A">
' <!ENTITY myEntityB "Some Entity Value B">
' 
' <!ENTITY c SYSTEM "http://www.xmlwriter.net/copyright.xml">
' <!ENTITY c PUBLIC "-//W3C//TEXT copyright//EN"
'  "http://www.w3.org/xmlspec/copyright.xml">
'  
' <!ENTITY logo SYSTEM "http://www.xmlwriter.net/logo.gif" NDATA gif>
' <!ENTITY logo PUBLIC  "-//W3C//GIF logo//EN" "http://www.w3.org/logo.gif" NDATA gif>
' 
' ]>
' 
' <note>
' <OPTIONS/>
' <to>Tove</to>
' <from>Jani</from>
' <heading myEntityTest="&myEntityA;">Reminder</heading>
' <body>Don't forget me this weekend!</body>
' <footer>&writer;&nbsp;&copyright;</footer>
' </note>
' --------------- canonicalized output ---------------
' <note>
' <OPTIONS ADAPTER="Included" CASE="HardShell" FINISH="Matte"></OPTIONS>
' <to>Tove</to>
' <from>Jani</from>
' <heading myEntityTest="Some Entity Value A">Reminder</heading>
' <body>Don't forget me this weekend!</body>
' <footer print="yes" sort="true">Writer: Donald Duck.�Copyright: &lt; &gt; Chilkat.</footer>
' </note>
'  
' ---- Test 12 ----
' --------------- input ---------------
' <?xml version="1.0" encoding="UTF-8"?>
' <lizard  xml:space="retain" xml:lang="en">
' 	<gecko />
' 	<bearded_dragon xml:lang="en" xml:space="retain">pip</bearded_dragon>
' </lizard>
' 
' --------------- canonicalized output ---------------
' <lizard xml:lang="en" xml:space="retain">
' 	<gecko></gecko>
' 	<bearded_dragon xml:lang="en" xml:space="retain">pip</bearded_dragon>
' </lizard>
'  
' ---- Test 13 ----
' --------------- input ---------------
' <?xml version="1.0" encoding="UTF-8"?>
' <lizard  xmlns="http://www.chilkatsoft.com">
' 	<gecko name="larry" />
' 	<bearded_dragon  xmlns="http://www.beardies.com" name="pip">pip</bearded_dragon>
' </lizard>
' 
' --------------- canonicalized output ---------------
' <lizard xmlns="http://www.chilkatsoft.com">
' 	<gecko name="larry"></gecko>
' 	<bearded_dragon xmlns="http://www.beardies.com" name="pip">pip</bearded_dragon>
' </lizard>
'  
' ---- Test 14 ----
' --------------- input ---------------
' <doc>
' <a xmlns:aa="https://www.test1.org">
' <b xmlns:aa="https://www.test2.org">
' <c xmlns:aa="https://www.test1.org">
' <d xmlns:aa="https://www.test2.org">
' <e xmlns:aa="https://www.test1.org">
' </e>
' </d>
' </c>
' </b>
' </a>
' </doc>
' 
' --------------- canonicalized output ---------------
' <doc>
' <a>
' <b>
' <c>
' <d>
' <e>
' </e>
' </d>
' </c>
' </b>
' </a>
' </doc>
'  
' ---- Test 15 ----
' --------------- input ---------------
' <doc>
' <a xmlns:aa="https://www.test1.org">
' <b xmlns:aa="https://www.test1.org">
' <c xmlns:aa="https://www.test1.org">
' <d xmlns:aa="https://www.test1.org">
' <e xmlns:aa="https://www.test1.org">
' </e>
' </d>
' </c>
' </b>
' </a>
' </doc>
' 
' --------------- canonicalized output ---------------
' <doc>
' <a>
' <b>
' <c>
' <d>
' <e>
' </e>
' </d>
' </c>
' </b>
' </a>
' </doc>
'  
' ---- Test 16 ----
' --------------- input ---------------
' <doc>
' <a xmlns="">
' <b xmlns="">
' <c xmlns="https://www.chilkatsoft.com">
' <c2 xmlns="https://www.chilkatsoft.com">
' <d xmlns="">
' <e xmlns="">
' </e>
' </d>
' </c2>
' </c>
' </b>
' </a>
' </doc>
' 
' --------------- canonicalized output ---------------
' <doc>
' <a>
' <b>
' <c xmlns="https://www.chilkatsoft.com">
' <c2>
' <d xmlns="">
' <e>
' </e>
' </d>
' </c2>
' </c>
' </b>
' </a>
' </doc>
'  
' ---- Test 17 ----
' --------------- input ---------------
' <doc>
' <a xmlns:aa="https://www.testA.com/" xmlns:zz="https://testZ.com" zz:color="blue" xmlns:yy="https://testY.com">
' <b xmlns="">
' <c xmlns:aa="https://www.testA.com/" aa:location="Chicago" xmlns:bb="https://www.testB.com/">
' <bb:d xmlns:aa="https://www.testAA.com/" aa:country="USA" yy:planet="Earth">
' </bb:d>
' </c>
' </b>
' </a>
' </doc>
' 
' --------------- canonicalized output ---------------
' <doc>
' <a xmlns:zz="https://testZ.com" zz:color="blue">
' <b>
' <c xmlns:aa="https://www.testA.com/" aa:location="Chicago">
' <bb:d xmlns:aa="https://www.testAA.com/" xmlns:bb="https://www.testB.com/" xmlns:yy="https://testY.com" yy:planet="Earth" aa:country="USA">
' </bb:d>
' </c>
' </b>
' </a>
' </doc>
'  
' ---- Test 18 ----
' --------------- input ---------------
' <doc>
' <a xmlns:aa="https://www.testA.com/" aa:location="Chicago">
' <b xmlns:aa="https://www.testA.com/"><!-- aa is not emitted here (using exclusive canon) -->
' <c xmlns:aa="https://www.testA.com/">test</c><!-- aa is not emitted here (using exclusive canon) -->
' </b>
' </a>
' </doc>
' 
' --------------- canonicalized output ---------------
' <doc>
' <a xmlns:aa="https://www.testA.com/" aa:location="Chicago">
' <b>
' <c>test</c>
' </b>
' </a>
' </doc>
'  
' ---- Test 19 ----
' --------------- input ---------------
' <doc>
' <!-- generate a space followed by xmlns="" if and only if the following conditions are met:
' 
'     the element E that owns the axis is in the node-set
'     The nearest ancestor element of E in the node-set has a default namespace node in the node-set (default namespace nodes always have non-empty values in XPath)
'  -->
' 	<animal xmlns:bb="https://www.reptile.com/">
' 		<bb:reptile xmlns="https://www.animal.com/" bb:abc="123">
'   			<lizard xmlns="" type="african fat tailed" abc="xyz" xmlns:bb="https://www.reptile222.com/" >
'   				<myPet xmlns:bb="https://www.reptile.com/">larry</myPet>
'   			</lizard>
'   			<snake type="poisonous rattler" xmlns:bb="https://www.reptile.com/" >
'   			</snake>
'   		</bb:reptile>
'   	</animal>
' </doc>
' 
' --------------- canonicalized output ---------------
' <doc>
' 
' 	<animal>
' 		<bb:reptile xmlns:bb="https://www.reptile.com/" bb:abc="123">
'   			<lizard abc="xyz" type="african fat tailed">
'   				<myPet>larry</myPet>
'   			</lizard>
'   			<snake xmlns="https://www.animal.com/" type="poisonous rattler">
'   			</snake>
'   		</bb:reptile>
'   	</animal>
' </doc>
'  
' 

%>
</body>
</html>