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(Android™) 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.
// Important: Don't forget to include the call to System.loadLibrary // as shown at the bottom of this code sample. package com.test; import android.app.Activity; import com.chilkatsoft.*; import android.widget.TextView; import android.os.Bundle; public class SimpleActivity extends Activity { private static final String TAG = "Chilkat"; // Called when the activity is first created. @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // 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..) CkPfx pfx = new CkPfx(); boolean success = pfx.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123"); if (success != true) { Log.i(TAG, pfx.lastErrorText()); 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. CkCert signingCert = pfx.GetCert(0); if (pfx.get_LastMethodSuccess() != true) { Log.i(TAG, pfx.lastErrorText()); return; } CkBinData bdCert = new CkBinData(); signingCert.ExportCertDerBd(bdCert); CkStringBuilder sbCert64 = new CkStringBuilder(); 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... CkXml xmlToSign = new CkXml(); xmlToSign.put_Tag("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. CkXmlDSigGen gen = new CkXmlDSigGen(); gen.put_SigLocation("SOAP-ENV:Envelope|SOAP-ENV:Header|wsse:Security"); gen.put_SigLocationMod(0); gen.put_SigNamespacePrefix("ds"); gen.put_SigNamespaceUri("http://www.w3.org/2000/09/xmldsig#"); gen.put_SignedInfoCanonAlg("EXCL_C14N"); gen.put_SignedInfoDigestMethod("sha256"); // Set the KeyInfoId before adding references.. gen.put_KeyInfoId("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) CkCert cert = new CkCert(); success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123"); if (success != true) { Log.i(TAG, cert.lastErrorText()); return; } gen.SetX509Cert(cert,true); gen.put_KeyInfoType("Custom"); // Create the custom KeyInfo XML.. CkXml xmlCustomKeyInfo = new CkXml(); xmlCustomKeyInfo.put_Tag("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.put_EmitXmlDecl(false); gen.put_CustomKeyInfoXml(xmlCustomKeyInfo.getXml()); // ------------------------------------------------------------------------------------------- // Load XML to be signed... CkStringBuilder sbXml = new CkStringBuilder(); xmlToSign.GetXmlSb(sbXml); // Update BinarySecurityToken_Base64Binary_Content with the actual X509 of the signing cert. int nReplaced = sbXml.Replace("BinarySecurityToken_Base64Binary_Content",cert.getEncoded()); gen.put_Behaviors("IndentedSignature"); // Sign the XML... success = gen.CreateXmlDSigSb(sbXml); if (success != true) { Log.i(TAG, gen.lastErrorText()); return; } // ----------------------------------------------- // Save the signed XML to a file. success = sbXml.WriteFile("c:/temp/qa_output/signedXml.xml","utf-8",false); Log.i(TAG, sbXml.getAsString()); } static { System.loadLibrary("chilkat"); // Note: If the incorrect library name is passed to System.loadLibrary, // then you will see the following error message at application startup: //"The application <your-application-name> has stopped unexpectedly. Please try again." } } |
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