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(DataFlex) Create AuthNRequest with embedded signature (HTTP-POST binding)

Demonstrates how to create a SAML AuthNRequest with embedded signature (HTTP-POST binding).

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-9.5.0-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoXmlToSign
    Handle hoGen
    Variant vCert
    Handle hoCert
    Variant vSbXml
    Handle hoSbXml
    Handle hoVerifier
    Boolean iVerified
    String sTemp1

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

    // This example will sign the following SAML AuthNRequest:

    // <samlp:AuthnRequest 
    //      xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol"
    //      xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
    //      ID="pfx41d8ef22-e612-8c50-9960-1b16f15741b3"
    //      Version="2.0" ProviderName="SP test" IssueInstant="2014-07-16T23:52:45Z"
    //      Destination="http://idp.example.com/SSOService.php"
    //      ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST"
    //      AssertionConsumerServiceURL="http://sp.example.com/demo1/index.php?acs">
    //   <saml:Issuer>http://sp.example.com/demo1/metadata.php</saml:Issuer>
    //   <samlp:NameIDPolicy Format="urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress" AllowCreate="true"/>
    //   <samlp:RequestedAuthnContext Comparison="exact">
    //     <saml:AuthnContextClassRef>urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport</saml:AuthnContextClassRef>
    //   </samlp:RequestedAuthnContext>
    // </samlp:AuthnRequest>

    // First we build the XML to be signed.
    // 
    // Use this online tool to generate the code from sample XML: 
    // Generate Code to Create XML

    Move True To iSuccess
    Get Create (RefClass(cComChilkatXml)) To hoXmlToSign
    If (Not(IsComObjectCreated(hoXmlToSign))) Begin
        Send CreateComObject of hoXmlToSign
    End
    Set ComTag Of hoXmlToSign To "samlp:AuthnRequest"
    Get ComAddAttribute Of hoXmlToSign "xmlns:samlp" "urn:oasis:names:tc:SAML:2.0:protocol" To iSuccess
    Get ComAddAttribute Of hoXmlToSign "xmlns:saml" "urn:oasis:names:tc:SAML:2.0:assertion" To iSuccess
    Get ComAddAttribute Of hoXmlToSign "ID" "pfx41d8ef22-e612-8c50-9960-1b16f15741b3" To iSuccess
    Get ComAddAttribute Of hoXmlToSign "Version" "2.0" To iSuccess
    Get ComAddAttribute Of hoXmlToSign "ProviderName" "SP test" To iSuccess
    Get ComAddAttribute Of hoXmlToSign "IssueInstant" "2014-07-16T23:52:45Z" To iSuccess
    Get ComAddAttribute Of hoXmlToSign "Destination" "http://idp.example.com/SSOService.php" To iSuccess
    Get ComAddAttribute Of hoXmlToSign "ProtocolBinding" "urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" To iSuccess
    Get ComAddAttribute Of hoXmlToSign "AssertionConsumerServiceURL" "http://sp.example.com/demo1/index.php?acs" To iSuccess
    Send ComUpdateChildContent To hoXmlToSign "saml:Issuer" "http://sp.example.com/demo1/metadata.php"
    Get ComUpdateAttrAt Of hoXmlToSign "samlp:NameIDPolicy" True "Format" "urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress" To iSuccess
    Get ComUpdateAttrAt Of hoXmlToSign "samlp:NameIDPolicy" True "AllowCreate" "true" To iSuccess
    Get ComUpdateAttrAt Of hoXmlToSign "samlp:RequestedAuthnContext" True "Comparison" "exact" To iSuccess
    Send ComUpdateChildContent To hoXmlToSign "samlp:RequestedAuthnContext|saml:AuthnContextClassRef" "urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport"

    // Also see the online tool to generate the code from sample already-signed XML: 
    // Generate XML Signature Creation Code from an Already-Signed XML Sample

    Get Create (RefClass(cComChilkatXmlDSigGen)) To hoGen
    If (Not(IsComObjectCreated(hoGen))) Begin
        Send CreateComObject of hoGen
    End

    Set ComSigLocation Of hoGen To "samlp:AuthnRequest"
    Set ComSigNamespacePrefix Of hoGen To "ds"
    Set ComSigNamespaceUri Of hoGen To "http://www.w3.org/2000/09/xmldsig#"
    Set ComSignedInfoCanonAlg Of hoGen To "EXCL_C14N"
    Set ComSignedInfoDigestMethod Of hoGen To "sha1"

    // -------- Reference 1 --------
    Get ComAddSameDocRef Of hoGen "pfx41d8ef22-e612-8c50-9960-1b16f15741b3" "sha1" "EXCL_C14N" "" "" To iSuccess

    // Provide a certificate + private key. (PFX password is test123)
    Get Create (RefClass(cComChilkatCert)) To hoCert
    If (Not(IsComObjectCreated(hoCert))) Begin
        Send CreateComObject of hoCert
    End
    Get ComLoadPfxFile Of hoCert "qa_data/pfx/cert_test123.pfx" "test123" To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoCert To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get pvComObject of hoCert to vCert
    Get ComSetX509Cert Of hoGen vCert True To iSuccess

    Set ComKeyInfoType Of hoGen To "X509Data"
    Set ComX509Type Of hoGen To "Certificate"

    // Load XML to be signed...
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbXml
    If (Not(IsComObjectCreated(hoSbXml))) Begin
        Send CreateComObject of hoSbXml
    End
    Get pvComObject of hoSbXml to vSbXml
    Get ComGetXmlSb Of hoXmlToSign vSbXml To iSuccess

    Set ComBehaviors Of hoGen To "IndentedSignature,ForceAddEnvelopedSignatureTransform"

    // Sign the XML...
    Get pvComObject of hoSbXml to vSbXml
    Get ComCreateXmlDSigSb Of hoGen vSbXml To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoGen To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Save the signed XMl to a file.
    Get ComWriteFile Of hoSbXml "qa_output/signedXml.xml" "utf-8" False To iSuccess

    // A sample of the signed XML is shown below..
    Get ComGetAsString Of hoSbXml To sTemp1
    Showln sTemp1

    // ----------------------------------------
    // Verify the signature we just produced...
    Get Create (RefClass(cComChilkatXmlDSig)) To hoVerifier
    If (Not(IsComObjectCreated(hoVerifier))) Begin
        Send CreateComObject of hoVerifier
    End
    Get pvComObject of hoSbXml to vSbXml
    Get ComLoadSignatureSb Of hoVerifier vSbXml To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoVerifier To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComVerifySignature Of hoVerifier True To iVerified
    If (iVerified <> True) Begin
        Get ComLastErrorText Of hoVerifier To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Showln "This signature was successfully verified."

    // -----------------------------------------
    // Sample output of AuthNRequest signed XML:
    // (Line-breaks and some indenting added for readability..)

    // <?xml version="1.0" encoding="utf-8"?>
    // <samlp:AuthnRequest 
    //   xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" 
    //   xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" 
    //   ID="pfx41d8ef22-e612-8c50-9960-1b16f15741b3" 
    //   Version="2.0" ProviderName="SP test" 
    //   IssueInstant="2014-07-16T23:52:45Z" 
    //   Destination="http://idp.example.com/SSOService.php" 
    //   ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" 
    //   AssertionConsumerServiceURL="http://sp.example.com/demo1/index.php?acs">
    //     <saml:Issuer>http://sp.example.com/demo1/metadata.php</saml:Issuer>
    //     <samlp:NameIDPolicy Format="urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress" AllowCreate="true"/>
    //     <samlp:RequestedAuthnContext Comparison="exact">
    //         <saml:AuthnContextClassRef>urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport</saml:AuthnContextClassRef>
    //     </samlp:RequestedAuthnContext>
    // 	<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
    // 	  <ds:SignedInfo>
    // 	    <ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
    // 	    <ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
    // 	    <ds:Reference URI="#pfx41d8ef22-e612-8c50-9960-1b16f15741b3">
    // 	      <ds:Transforms>
    // 	        <ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
    // 	        <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
    // 	      </ds:Transforms>
    // 	      <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
    // 	      <ds:DigestValue>5d+/YNShy4qnvZcvik8fHHg2SWQ=</ds:DigestValue>
    // 	    </ds:Reference>
    // 	  </ds:SignedInfo>
    // 	  <ds:SignatureValue>QS16H5...U5LQ==</ds:SignatureValue>
    // 	  <ds:KeyInfo>
    // 	    <ds:X509Data>
    // 	      <ds:X509Certificate>MIIF...tjlF4=</ds:X509Certificate>
    // 	    </ds:X509Data>
    // 	  </ds:KeyInfo>
    // 	</ds:Signature>
    // </samlp:AuthnRequest>
    // 


End_Procedure

 

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