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uncategorized

 

 

 

(PHP Extension) XML Exclusive Canonicalization

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

Chilkat PHP Downloads

PHP Extension for Windows, Linux, MacOS,
Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

// 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.

$http = new CkHttp();
$sbXml = new CkStringBuilder();
$canon = new CkXmlDSig();

// Use exclusive XML canonicalization.
$canonVersion = 'EXCL_C14N';
$withComments = false;

$div1 = '--------------- input ---------------';
$div2 = '--------------- canonicalized output ---------------';

$sbUrl = new CkStringBuilder();

$i = 1;
while ($i < 20) {
    $sbUrl->SetString('https://www.chilkatsoft.com/exampleData/c14n/testTESTNUMBER.xml');
    $numReplaced = $sbUrl->ReplaceI('TESTNUMBER',$i);

    $success = $http->QuickGetSb($sbUrl->getAsString(),$sbXml);
    if ($success == true) {
        $xmlCanon = $canon->canonicalizeXml($sbXml->getAsString(),$canonVersion,$withComments);

        print '---- Test ' . $i . ' ----' . "\n";
        print $div1 . "\n";
        print $sbXml->getAsString() . "\n";
        print $div2 . "\n";
        print $xmlCanon . "\n";
        print ' ' . "\n";
    }

    $i = $i + 1;
}

// 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>
//  
// 

?>
 

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