/*
 * Copyright  1999-2004 The Apache Software Foundation.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */
package org.apache.xml.security.samples;



import org.apache.xml.security.samples.SampleUtils;
import org.apache.xml.security.signature.XMLSignature;
import org.apache.xml.security.utils.Constants;
import org.apache.xml.security.utils.XMLUtils;
import org.apache.xml.security.utils.resolver.ResourceResolver;
import org.apache.xpath.XPathAPI;
import org.w3c.dom.Element;


/**
 *
 * @author $Author: mullan $
 */
public class ResolverUsageHTTP {

   /**
    * Method main
    *
    * @param unused
    * @throws Exception
    */
   public static void main(String unused[]) throws Exception {

      ResourceResolver.registerAtStart(
         "org.apache.xml.security.samples.utils.resolver.OfflineResolver");

      //J-
      // String currentSystemId = "http://www.nue.et-inf.uni-siegen.de/~geuer-pollmann/signature.xml";
      String currentSystemId = "file:/Y:/signature.xml";
      // String refURI =          "#N3";
      String refURI =          "#xpointer(id("id2"))";
      // String refURI =          "file:/Y:/jbproject/xmlsecurity/data/org.apache.xml.security/temp/id.xml#N3";
      // String refURI =          "http://www.nue.et-inf.uni-siegen.de/index.html#xpointer('id3')";
      String inputStr =
        "<?xml version='1.0'?>" + "\n"
      + "<!DOCTYPE doc [" + "\n"
      + "<!ATTLIST e9 Id ID #IMPLIED>" + "\n"
      + "]>" + "\n"
      + "<doc>" + "\n"
      + "   <!-- A comment -->" + "\n"
      + "   <Signature xmlns='http://www.w3.org/2000/09/xmldsig#'>" + "\n"
      + "    <SignedInfo>" + "\n"
      + "      <CanonicalizationMethod Algorithm='http://www.w3.org/TR/2001/REC-xml-c14n-20010315' />" + "\n"
      + "      <SignatureMethod Algorithm='http://www.w3.org/2000/09/xmldsig#rsa-sha1' />" + "\n"
      + "      <Reference URI='http://www.w3.org/TR/xml-stylesheet'>" + "\n"
      + "         <DigestMethod Algorithm='http://www.w3.org/2000/09/xmldsig#sha1' />" + "\n"
      + "         <DigestValue>60NvZvtdTB+7UnlLp/H24p7h4bs=</DigestValue>" + "\n"
      + "      </Reference>" + "\n"
      + "      <Reference URI='#xpointer(id(&quot;id2&quot;))'>" + "\n"
      + "         <DigestMethod Algorithm='http://www.w3.org/2000/09/xmldsig#sha1' />" + "\n"
      + "         <DigestValue>RJeREVHXdM5ysghhvpIYGJJaNQI=</DigestValue>" + "\n"
      + "      </Reference>" + "\n"
      + "      <Reference URI='http://www.nue.et-inf.uni-siegen.de/index.html'>" + "\n"
      + "         <DigestMethod Algorithm='http://www.w3.org/2000/09/xmldsig#sha1' />" + "\n"
      + "         <DigestValue>Hpg+6h1k1jYY5yr3TRzDZzw23CQ=</DigestValue>" + "\n"
      // + "         <DigestValue>RJeREVHXdM5ysghhvpIYGJJaNQI=</DigestValue>" + "\n"
      + "      </Reference>" + "\n"
      // + "      <Reference URI='file:/Y:/jbproject/xmlsecurity/data/org.apache.xml.security/temp/id2.xml#xpointer(id(&quot;id2&quot;))' xmlns='http://www.w3.org/2000/09/xmldsig#'>" + "\n"
      + "      <Reference URI='http://www.nue.et-inf.uni-siegen.de/~geuer-pollmann/id2.xml'>" + "\n"
      + "         <Transforms>" + "\n"
      + "            <Transform Algorithm='http://www.w3.org/TR/1999/REC-xpath-19991116'>" + "\n"
      + "               <XPath>self::text()</XPath>" + "\n"
      + "            </Transform>" + "\n"
      + "         </Transforms>" + "\n"
      + "         <DigestMethod Algorithm='http://www.w3.org/2000/09/xmldsig#sha1' />" + "\n"
      + "         <DigestValue>RK9DKU4NnECPpNAb+QxMwTmSL+w=</DigestValue>" + "\n"
      + "      </Reference>" + "\n"
      + "    </SignedInfo>" + "\n"
      + "    <SignatureValue>" + "\n"
      + "       KTe1H5Hjp8hwahNFoUqHDuPJNNqhS1U3BBBH5/gByItNIwV18nMiLq4KunzFnOqD" + "\n"
      + "       xzTuO0/T+wsoYC1xOEuCDxyIujNCaJfLh+rCi5THulnc8KSHHEoPQ+7fA1VjmO31" + "\n"
      + "       2iw1iENOi7m//wzKlIHuxZCJ5nvolT21PV6nSE4DHlA=" + "\n"
      + "    </SignatureValue>" + "\n"
      + "   </Signature>" + "\n"
      + "   <e9 Id='N3'><!-- A comment -->Das N3 Element</e9>" + "\n"
      + "   <e9 Id='id2'><!-- A comment --> Das id2 Element</e9>" + "\n"
      + "</doc> " + "\n"
      + "";
      //J+
      javax.xml.parsers.DocumentBuilderFactory dbf =
         javax.xml.parsers.DocumentBuilderFactory.newInstance();

      dbf.setNamespaceAware(true);

      javax.xml.parsers.DocumentBuilder db = dbf.newDocumentBuilder();
      org.w3c.dom.Document doc =
         db.parse(new java.io.ByteArrayInputStream(inputStr.getBytes()));
      Element context = SampleUtils.createDSctx(doc, "ds", Constants.SignatureSpecNS);

      Element dsElem = (Element) XPathAPI.selectSingleNode(doc,
                          "//ds:Signature[1]", context);
      XMLSignature signature = new XMLSignature(dsElem, currentSystemId);

      // how can I reg my own keystore?
      boolean verify = signature.checkSignatureValue(signature.getKeyInfo().getPublicKey());

      System.out.println("Signature " + (verify
                                         ? "Verification successful"
                                         : "Verification failed"));
      System.out.println("Canonicalized SignedInfo:");
      System.out
         .println(new String(signature.getSignedInfo()
            .getCanonicalizedOctetStream()));

      /*
      Element signedInfoElem = (Element) XPathAPI.selectSingleNode(doc, "/doc/ds:Signature/ds:SignedInfo", context);
      SignedInfo si = new SignedInfo(signedInfoElem, currentSystemId);
      boolean useProxy = false;
      if (useProxy) {
         si.setResolverProperty("http.proxy.host", "www-cache.uni-siegen.de");
         si.setResolverProperty("http.proxy.port", "3128");
      }
      boolean verify = si.verify();
      System.out.println(verify ? "Verification successful" : "Verification failed");
      if (!verify) {
         for (int i=0; i<si.getLength(); i++) {
            if (si.getVerificationResult(i)) {
               System.out.println("OK:     " + si.item(i).getURI());
            } else {
               System.out.println("Failed: " + si.item(i).getURI());
               System.out.println("data follows: ");
               System.out.print(new String(si.item(i).getXMLSignatureInput().getBytes()));
            }
         }
      }
      */
   }
}