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(Go) Create IRS MeF Login Service Request MessageThis example demonstrates how to create a digitally signed Login Service Request Message. This example used the documentation at https://www.irs.gov/pub/irs-utl/mef-doc-stp_ref_guide.pdf as a guide. It creates signed XML as specified in section 4.1.1 found in Section 4: Example A2A Web Service Messages.
// This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // -------------------------------------------------------------------------------- // Also see Chilkat's Online WSDL Code Generator // to generate code and SOAP Request and Response XML for each operation in a WSDL. // -------------------------------------------------------------------------------- // The goal of this example is to create signed SOAP XML such as the following: // <?xml version="1.0" encoding="UTF-8"?> // <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> // <SOAP-ENV:Header> // <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"> // <wsse:BinarySecurityToken // xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" // 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="CertId-1673181727">MIIHab...n71P</wsse:BinarySecurityToken> // <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/2001/04/xmldsig-more#rsa-sha256"/> // <ds:Reference URI="#id-1214941501"> // <ds:Transforms> // <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/> // </ds:Transforms> // <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/> // <ds:DigestValue>abcdefghijkLMNOPQRSTUVwxyz012345Em0o3VEOTck=</ds:DigestValue> // </ds:Reference> // <ds:Reference URI="#id-1871558655"> // <ds:Transforms> // <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/> // </ds:Transforms> // <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/> // <ds:DigestValue>abcdefghijkLMNOPQRSTUVwxyz012345Xm5ViA+royg=</ds:DigestValue> // </ds:Reference> // </ds:SignedInfo> // <ds:SignatureValue>abcd...5Nbw==</ds:SignatureValue> // <ds:KeyInfo Id="KeyId-256137097"> // <wsse:SecurityTokenReference xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="STRId-1862925355"> // <wsse:Reference URI="#CertId-1673181727" 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> // <ns1:MeFHeader xmlns:ns1="http://www.irs.gov/a2a/mef/MeFHeader.xsd" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="id-1214941501"> // <ns1:MessageID>12345202018200000234</ns1:MessageID> // <ns1:Action>Login</ns1:Action> // <ns1:MessageTs>2020-06-30T15:25:42.678Z</ns1:MessageTs> // <ns1:ETIN>12345</ns1:ETIN> // <ns1:SessionKeyCd>Y</ns1:SessionKeyCd> // <ns1:TestCd>P</ns1:TestCd> // <ns1:AppSysID>65432190</ns1:AppSysID> // <ns1:WSDLVersionNum>10.3</ns1:WSDLVersionNum> // <ns1:ClientSoftwareTxt>SOATest</ns1:ClientSoftwareTxt> // </ns1:MeFHeader> // </SOAP-ENV:Header> // <SOAP-ENV:Body xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="id-1871558655"> // <LoginRequest xmlns="http://www.irs.gov/a2a/mef/MeFMSIServices.xsd"/> // </SOAP-ENV:Body> // </SOAP-ENV:Envelope> // ------------------------------------------------------------------------------------------- // First, let's load the certificate + private key to be used for signing (from a PFX). // (It is also possible to use certificates installed on a Windows system, or from other file formats..) pfx := chilkat.NewPfx() success := pfx.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123") if success != true { fmt.Println(pfx.LastErrorText()) pfx.DisposePfx() return } // We'll be needing the X.509 signing cert as base64 for the BinarySecurityToken, so let's get it now.. // The certificate having the private key should be the 1st in the PFX. signingCert := pfx.GetCert(0) if pfx.LastMethodSuccess() != true { fmt.Println(pfx.LastErrorText()) pfx.DisposePfx() return } bdCert := chilkat.NewBinData() signingCert.ExportCertDerBd(bdCert) sbCert64 := chilkat.NewStringBuilder() bdCert.GetEncodedSb("base64",sbCert64) // ------------------------------------------------------------------------------------------- // The XML before signing would look like this: // <?xml version="1.0" encoding="UTF-8"?> // <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> // <SOAP-ENV:Header> // <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"> // <wsse:BinarySecurityToken // xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" // 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="CertId-1673181727">MIIHab...n71P</wsse:BinarySecurityToken> // </wsse:Security> // <ns1:MeFHeader xmlns:ns1="http://www.irs.gov/a2a/mef/MeFHeader.xsd" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="id-1214941501"> // <ns1:MessageID>12345202018200000234</ns1:MessageID> // <ns1:Action>Login</ns1:Action> // <ns1:MessageTs>2020-06-30T15:25:42.678Z</ns1:MessageTs> // <ns1:ETIN>12345</ns1:ETIN> // <ns1:SessionKeyCd>Y</ns1:SessionKeyCd> // <ns1:TestCd>P</ns1:TestCd> // <ns1:AppSysID>65432190</ns1:AppSysID> // <ns1:WSDLVersionNum>10.3</ns1:WSDLVersionNum> // <ns1:ClientSoftwareTxt>SOATest</ns1:ClientSoftwareTxt> // </ns1:MeFHeader> // </SOAP-ENV:Header> // <SOAP-ENV:Body xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="id-1871558655"> // <LoginRequest xmlns="http://www.irs.gov/a2a/mef/MeFMSIServices.xsd"/> // </SOAP-ENV:Body> // </SOAP-ENV:Envelope> // You can use the online XML code generation tool at http://tools.chilkat.io/xmlCreate.cshtml // to generate the following XML creation source code: // Create the XML to be signed... xmlToSign := chilkat.NewXml() xmlToSign.SetTag("SOAP-ENV:Envelope") xmlToSign.AddAttribute("xmlns:SOAP-ENV","http://schemas.xmlsoap.org/soap/envelope/") xmlToSign.AddAttribute("xmlns:xsd","http://www.w3.org/2001/XMLSchema") xmlToSign.AddAttribute("xmlns:xsi","http://www.w3.org/2001/XMLSchema-instance") xmlToSign.UpdateAttrAt("SOAP-ENV: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-ENV:Header|wsse:Security|wsse:BinarySecurityToken",true,"xmlns:wsu","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd") xmlToSign.UpdateAttrAt("SOAP-ENV: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-ENV: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-ENV:Header|wsse:Security|wsse:BinarySecurityToken",true,"wsu:Id","CertId-1673181727") xmlToSign.UpdateChildContent("SOAP-ENV:Header|wsse:Security|wsse:BinarySecurityToken",*sbCert64.GetAsString()) xmlToSign.UpdateAttrAt("SOAP-ENV:Header|ns1:MeFHeader",true,"xmlns:ns1","http://www.irs.gov/a2a/mef/MeFHeader.xsd") xmlToSign.UpdateAttrAt("SOAP-ENV:Header|ns1:MeFHeader",true,"xmlns:wsu","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd") xmlToSign.UpdateAttrAt("SOAP-ENV:Header|ns1:MeFHeader",true,"wsu:Id","id-1214941501") xmlToSign.UpdateChildContent("SOAP-ENV:Header|ns1:MeFHeader|ns1:MessageID","12345202018200000234") xmlToSign.UpdateChildContent("SOAP-ENV:Header|ns1:MeFHeader|ns1:Action","Login") xmlToSign.UpdateChildContent("SOAP-ENV:Header|ns1:MeFHeader|ns1:MessageTs","2020-06-30T15:25:42.678Z") xmlToSign.UpdateChildContentInt("SOAP-ENV:Header|ns1:MeFHeader|ns1:ETIN",12345) xmlToSign.UpdateChildContent("SOAP-ENV:Header|ns1:MeFHeader|ns1:SessionKeyCd","Y") xmlToSign.UpdateChildContent("SOAP-ENV:Header|ns1:MeFHeader|ns1:TestCd","P") xmlToSign.UpdateChildContentInt("SOAP-ENV:Header|ns1:MeFHeader|ns1:AppSysID",65432190) xmlToSign.UpdateChildContent("SOAP-ENV:Header|ns1:MeFHeader|ns1:WSDLVersionNum","10.3") xmlToSign.UpdateChildContent("SOAP-ENV:Header|ns1:MeFHeader|ns1:ClientSoftwareTxt","SOATest") xmlToSign.UpdateAttrAt("SOAP-ENV:Body",true,"xmlns:wsu","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd") xmlToSign.UpdateAttrAt("SOAP-ENV:Body",true,"wsu:Id","id-1871558655") xmlToSign.UpdateAttrAt("SOAP-ENV:Body|LoginRequest",true,"xmlns","http://www.irs.gov/a2a/mef/MeFMSIServices.xsd") // ------------------------------------------------------------------------------------------- // Setup the XML DSig generator object to create the desired signature. gen := chilkat.NewXmlDSigGen() gen.SetSigLocation("SOAP-ENV:Envelope|SOAP-ENV:Header|wsse:Security") gen.SetSigLocationMod(0) gen.SetSigNamespacePrefix("ds") gen.SetSigNamespaceUri("http://www.w3.org/2000/09/xmldsig#") gen.SetSignedInfoCanonAlg("EXCL_C14N") gen.SetSignedInfoDigestMethod("sha256") // Set the KeyInfoId before adding references.. gen.SetKeyInfoId("KeyId-256137097") // -------- Reference 1 -------- gen.AddSameDocRef("id-1214941501","sha256","EXCL_C14N","","") // -------- Reference 2 -------- gen.AddSameDocRef("id-1871558655","sha256","EXCL_C14N","","") // Provide a certificate + private key. (PFX password is test123) cert := chilkat.NewCert() success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123") if success != true { fmt.Println(cert.LastErrorText()) pfx.DisposePfx() bdCert.DisposeBinData() sbCert64.DisposeStringBuilder() xmlToSign.DisposeXml() gen.DisposeXmlDSigGen() cert.DisposeCert() return } gen.SetX509Cert(cert,true) gen.SetKeyInfoType("Custom") // Create the custom KeyInfo XML.. xmlCustomKeyInfo := chilkat.NewXml() xmlCustomKeyInfo.SetTag("wsse:SecurityTokenReference") xmlCustomKeyInfo.AddAttribute("xmlns:wsu","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd") xmlCustomKeyInfo.AddAttribute("wsu:Id","STRId-1862925355") xmlCustomKeyInfo.UpdateAttrAt("wsse:Reference",true,"URI","#CertId-1673181727") xmlCustomKeyInfo.UpdateAttrAt("wsse:Reference",true,"ValueType","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3") xmlCustomKeyInfo.SetEmitXmlDecl(false) gen.SetCustomKeyInfoXml(xmlCustomKeyInfo.GetXml()) // ------------------------------------------------------------------------------------------- // Load XML to be signed... sbXml := chilkat.NewStringBuilder() xmlToSign.GetXmlSb(sbXml) // Update BinarySecurityToken_Base64Binary_Content with the actual X509 of the signing cert. nReplaced := sbXml.Replace("BinarySecurityToken_Base64Binary_Content",*cert.GetEncoded()) gen.SetBehaviors("IndentedSignature") // Sign the XML... success = gen.CreateXmlDSigSb(sbXml) if success != true { fmt.Println(gen.LastErrorText()) pfx.DisposePfx() bdCert.DisposeBinData() sbCert64.DisposeStringBuilder() xmlToSign.DisposeXml() gen.DisposeXmlDSigGen() cert.DisposeCert() xmlCustomKeyInfo.DisposeXml() sbXml.DisposeStringBuilder() return } // ----------------------------------------------- // Save the signed XML to a file. success = sbXml.WriteFile("c:/temp/qa_output/signedXml.xml","utf-8",false) fmt.Println(*sbXml.GetAsString()) pfx.DisposePfx() bdCert.DisposeBinData() sbCert64.DisposeStringBuilder() xmlToSign.DisposeXml() gen.DisposeXmlDSigGen() cert.DisposeCert() xmlCustomKeyInfo.DisposeXml() sbXml.DisposeStringBuilder() |
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