(Mono C#) Create Signed SOAP XML for DIAN Colombia WCF Service

Demonstrates how to create a signed SOAP XML document for DIAN Colombia.

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

// This example will produce a signed SOAP XML message that looks like this:

// <?xml version="1.0" encoding="utf-8"?>
// <soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:wcf="http://wcf.dian.colombia">
//     <soap:Header xmlns:wsa="http://www.w3.org/2005/08/addressing">
//         <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
//             <wsu:Timestamp wsu:Id="TS-F25839120CBA3ECDAD68754D0443A667636FDA68">
//                 <wsu:Created>2019-08-23T23:03:01Z</wsu:Created>
//                 <wsu:Expires>2019-08-24T15:43:01Z</wsu:Expires>
//             </wsu:Timestamp>
//             <wsse:BinarySecurityToken EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary" 
// 			ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3" 
// 			wsu:Id="ABCXYZ-9F0F7E15A59816E680B4735080A789DC1EED6C9C">MIIG8jCCBd ... zLjGQUB6lcz</wsse:BinarySecurityToken>
//             <ds:Signature Id="SIG-F25839120CBA3ECDAD68754D0443A667636FDA68" xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
//                 <ds:SignedInfo>
//                     <ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#">
//                         <ec:InclusiveNamespaces PrefixList="wsa soap wcf" xmlns:ec="http://www.w3.org/2001/10/xml-exc-c14n#"/>
//                     </ds:CanonicalizationMethod>
//                     <ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/>
//                     <ds:Reference URI="#ID-F25839120CBA3ECDAD68754D0443A667636FDA68">
//                         <ds:Transforms>
//                             <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#">
//                                 <ec:InclusiveNamespaces PrefixList="soap wcf" xmlns:ec="http://www.w3.org/2001/10/xml-exc-c14n#"/>
//                             </ds:Transform>
//                         </ds:Transforms>
//                         <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
//                         <ds:DigestValue>gSIKtjS/BKA2bgecXkM8lYVBDqlXcU3juNYT9a+bSnM=</ds:DigestValue>
//                     </ds:Reference>
//                 </ds:SignedInfo>
//                 <ds:SignatureValue>sL7rOdyfkEnKgJja0eWrv ... YqG0T0pflBsGW9zXkjQ9NvAw==</ds:SignatureValue>
//                 <ds:KeyInfo Id="KI-F25839120CBA3ECDAD68754D0443A667636FDA68">
//                     <wsse:SecurityTokenReference wsu:Id="STR-F25839120CBA3ECDAD68754D0443A667636FDA68">
//                         <wsse:Reference URI="#ABCXYZ-9F0F7E15A59816E680B4735080A789DC1EED6C9C" ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3"/>
//                     </wsse:SecurityTokenReference>
//                 </ds:KeyInfo>
//             </ds:Signature>
//         </wsse:Security>
//         <wsa:Action>http://wcf.dian.colombia/IWcfDianCustomerServices/GetStatus</wsa:Action>
//         <wsa:To wsu:Id="ID-F25839120CBA3ECDAD68754D0443A667636FDA68" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">https://vpfe-hab.dian.gov.co/WcfDianCustomerServices.svc</wsa:To>
//     </soap:Header>
//     <soap:Body>
//         <wcf:GetStatus>
//             <wcf:trackId>123456666</wcf:trackId>
//         </wcf:GetStatus>
//     </soap:Body>
// </soap:Envelope>

// Use this online tool to generate code from sample Signed XML: 
// Generate Code to Create Signed XML

bool success = true;
// Create the XML to be signed...
Chilkat.Xml xmlToSign = new Chilkat.Xml();
xmlToSign.Tag = "soap:Envelope";
xmlToSign.AddAttribute("xmlns:soap","http://www.w3.org/2003/05/soap-envelope");
xmlToSign.AddAttribute("xmlns:wcf","http://wcf.dian.colombia");
xmlToSign.UpdateAttrAt("soap:Header",true,"xmlns:wsa","http://www.w3.org/2005/08/addressing");
xmlToSign.UpdateAttrAt("soap:Header|wsse:Security",true,"xmlns:wsse","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd");
xmlToSign.UpdateAttrAt("soap:Header|wsse:Security",true,"xmlns:wsu","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd");
xmlToSign.UpdateAttrAt("soap:Header|wsse:Security|wsu:Timestamp",true,"wsu:Id","TS-F25839120CBA3ECDAD68754D0443A667636FDA68");
xmlToSign.UpdateChildContent("soap:Header|wsse:Security|wsu:Timestamp|wsu:Created","2019-08-23T23:03:01Z");
xmlToSign.UpdateChildContent("soap:Header|wsse:Security|wsu:Timestamp|wsu:Expires","2019-08-24T15:43:01Z");
xmlToSign.UpdateAttrAt("soap:Header|wsse:Security|wsse:BinarySecurityToken",true,"EncodingType","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary");
xmlToSign.UpdateAttrAt("soap:Header|wsse:Security|wsse:BinarySecurityToken",true,"ValueType","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3");
xmlToSign.UpdateAttrAt("soap:Header|wsse:Security|wsse:BinarySecurityToken",true,"wsu:Id","ABCXYZ-9F0F7E15A59816E680B4735080A789DC1EED6C9C");
xmlToSign.UpdateChildContent("soap:Header|wsse:Security|wsse:BinarySecurityToken","BinarySecurityToken_Base64Binary_Content");
xmlToSign.UpdateChildContent("soap:Header|wsa:Action","http://wcf.dian.colombia/IWcfDianCustomerServices/GetStatus");
xmlToSign.UpdateAttrAt("soap:Header|wsa:To",true,"wsu:Id","ID-F25839120CBA3ECDAD68754D0443A667636FDA68");
xmlToSign.UpdateAttrAt("soap:Header|wsa:To",true,"xmlns:wsu","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd");
xmlToSign.UpdateChildContent("soap:Header|wsa:To","https://vpfe-hab.dian.gov.co/WcfDianCustomerServices.svc");
xmlToSign.UpdateChildContent("soap:Body|wcf:GetStatus|wcf:trackId","123456666");

Chilkat.XmlDSigGen gen = new Chilkat.XmlDSigGen();

gen.SigLocation = "soap:Envelope|soap:Header|wsse:Security";
gen.SigLocationMod = 0;
gen.SigId = "SIG-F25839120CBA3ECDAD68754D0443A667636FDA68";
gen.SigNamespacePrefix = "ds";
gen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#";
gen.SignedInfoCanonAlg = "EXCL_C14N";
gen.SignedInfoDigestMethod = "sha256";

// Set the KeyInfoId before adding references..
gen.KeyInfoId = "KI-F25839120CBA3ECDAD68754D0443A667636FDA68";

// -------- Reference 1 --------
gen.AddSameDocRef("ID-F25839120CBA3ECDAD68754D0443A667636FDA68","sha256","EXCL_C14N","soap wcf","");

// Provide a certificate + private key. (PFX password is test123)
Chilkat.Cert cert = new Chilkat.Cert();
success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123");
if (success != true) {
    Debug.WriteLine(cert.LastErrorText);
    return;
}

gen.SetX509Cert(cert,true);

gen.KeyInfoType = "Custom";

// Create the custom KeyInfo XML..
Chilkat.Xml xmlCustomKeyInfo = new Chilkat.Xml();
xmlCustomKeyInfo.Tag = "wsse:SecurityTokenReference";
xmlCustomKeyInfo.AddAttribute("wsu:Id","STR-F25839120CBA3ECDAD68754D0443A667636FDA68");
xmlCustomKeyInfo.UpdateAttrAt("wsse:Reference",true,"URI","#ABCXYZ-9F0F7E15A59816E680B4735080A789DC1EED6C9C");
xmlCustomKeyInfo.UpdateAttrAt("wsse:Reference",true,"ValueType","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3");

xmlCustomKeyInfo.EmitXmlDecl = false;
gen.CustomKeyInfoXml = xmlCustomKeyInfo.GetXml();

// Load XML to be signed...
Chilkat.StringBuilder sbXml = new Chilkat.StringBuilder();
xmlToSign.GetXmlSb(sbXml);

// Update BinarySecurityToken_Base64Binary_Content with the actual X509 of the signing cert.
Chilkat.BinData bdCert = new Chilkat.BinData();
cert.ExportCertDerBd(bdCert);

int nReplaced = sbXml.Replace("BinarySecurityToken_Base64Binary_Content",bdCert.GetEncoded("base64"));

gen.Behaviors = "IndentedSignature";

// Sign the XML...
success = gen.CreateXmlDSigSb(sbXml);
if (success != true) {
    Debug.WriteLine(gen.LastErrorText);
    return;
}

// -----------------------------------------------

// Save the signed XML to a file.
success = sbXml.WriteFile("qa_output/signedXml.xml","utf-8",false);

Debug.WriteLine(sbXml.GetAsString());

// ----------------------------------------
// Verify the signatures we just produced...
Chilkat.XmlDSig verifier = new Chilkat.XmlDSig();
success = verifier.LoadSignatureSb(sbXml);
if (success != true) {
    Debug.WriteLine(verifier.LastErrorText);
    return;
}

int numSigs = verifier.NumSignatures;
int verifyIdx = 0;
while (verifyIdx < numSigs) {
    verifier.Selector = verifyIdx;
    bool verified = verifier.VerifySignature(true);
    if (verified != true) {
        Debug.WriteLine(verifier.LastErrorText);
        return;
    }

    verifyIdx = verifyIdx + 1;
}

Debug.WriteLine("All signatures were successfully verified.");

// --------------------------------------------------------------------------------
// Also see Chilkat's Online WSDL Code Generator
// to generate code and SOAP Request and Response XML for each operation in a WSDL.
// --------------------------------------------------------------------------------