1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242
/* * Copyright 2006 Sun Microsystems, Inc. All rights reserved. */ /* * $Id: ApacheCanonicalizer.java,v 1.17 2005/09/19 18:20:04 mullan Exp $ */ package org.jcp.xml.dsig.internal.dom; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.OutputStream; import java.security.spec.AlgorithmParameterSpec; import java.security.InvalidAlgorithmParameterException; import java.util.Set; import java.util.logging.Logger; import java.util.logging.Level; import javax.xml.crypto.*; import javax.xml.crypto.dom.DOMCryptoContext; import javax.xml.crypto.dsig.TransformException; import javax.xml.crypto.dsig.TransformService; import javax.xml.crypto.dsig.XMLSignatureException; import javax.xml.crypto.dsig.spec.C14NMethodParameterSpec; import com.sun.org.apache.xml.internal.security.c14n.Canonicalizer; import com.sun.org.apache.xml.internal.security.c14n.InvalidCanonicalizerException; import com.sun.org.apache.xml.internal.security.signature.XMLSignatureInput; import com.sun.org.apache.xml.internal.security.transforms.Transform; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NodeList; public abstract class ApacheCanonicalizer extends TransformService { private static Logger log = Logger.getLogger("org.jcp.xml.dsig.internal.dom"); protected Canonicalizer apacheCanonicalizer; private Transform apacheTransform; protected String inclusiveNamespaces; protected C14NMethodParameterSpec params; protected Document ownerDoc; protected Element transformElem; public final AlgorithmParameterSpec getParameterSpec() { return params; } public void init(XMLStructure parent, XMLCryptoContext context) throws InvalidAlgorithmParameterException { if (context != null && !(context instanceof DOMCryptoContext)) { throw new ClassCastException ("context must be of type DOMCryptoContext"); } transformElem = (Element) ((javax.xml.crypto.dom.DOMStructure) parent).getNode(); ownerDoc = DOMUtils.getOwnerDocument(transformElem); } public void marshalParams(XMLStructure parent, XMLCryptoContext context) throws MarshalException { if (context != null && !(context instanceof DOMCryptoContext)) { throw new ClassCastException ("context must be of type DOMCryptoContext"); } transformElem = (Element) ((javax.xml.crypto.dom.DOMStructure) parent).getNode(); ownerDoc = DOMUtils.getOwnerDocument(transformElem); } public Data canonicalize(Data data, XMLCryptoContext xc) throws TransformException { return canonicalize(data, xc, null); } public Data canonicalize(Data data, XMLCryptoContext xc, OutputStream os) throws TransformException { if (apacheCanonicalizer == null) { try { apacheCanonicalizer = Canonicalizer.getInstance(getAlgorithm()); if (log.isLoggable(Level.FINE)) { log.log(Level.FINE, "Created canonicalizer for algorithm: " + getAlgorithm()); } } catch (InvalidCanonicalizerException ice) { throw new TransformException ("Couldn't find Canonicalizer for: " + getAlgorithm() + ": " + ice.getMessage(), ice); } } if (os != null) { apacheCanonicalizer.setWriter(os); } else { apacheCanonicalizer.setWriter(new ByteArrayOutputStream()); } try { Set nodeSet = null; if (data instanceof ApacheData) { XMLSignatureInput in = ((ApacheData) data).getXMLSignatureInput(); if (in.isElement()) { if (inclusiveNamespaces != null) { return new OctetStreamData(new ByteArrayInputStream (apacheCanonicalizer.canonicalizeSubtree (in.getSubNode(), inclusiveNamespaces))); } else { return new OctetStreamData(new ByteArrayInputStream (apacheCanonicalizer.canonicalizeSubtree (in.getSubNode()))); } } else if (in.isNodeSet()) { nodeSet = in.getNodeSet(); } else { return new OctetStreamData(new ByteArrayInputStream( apacheCanonicalizer.canonicalize( Utils.readBytesFromStream(in.getOctetStream())))); } } else if (data instanceof DOMSubTreeData) { DOMSubTreeData subTree = (DOMSubTreeData) data; if (inclusiveNamespaces != null) { return new OctetStreamData(new ByteArrayInputStream (apacheCanonicalizer.canonicalizeSubtree (subTree.getRoot(), inclusiveNamespaces))); } else { return new OctetStreamData(new ByteArrayInputStream (apacheCanonicalizer.canonicalizeSubtree (subTree.getRoot()))); } } else if (data instanceof NodeSetData) { NodeSetData nsd = (NodeSetData) data; // convert Iterator to Set nodeSet = Utils.toNodeSet(nsd.iterator()); if (log.isLoggable(Level.FINE)) { log.log(Level.FINE, "Canonicalizing " + nodeSet.size() + " nodes"); } } else { return new OctetStreamData(new ByteArrayInputStream( apacheCanonicalizer.canonicalize( Utils.readBytesFromStream( ((OctetStreamData)data).getOctetStream())))); } if (inclusiveNamespaces != null) { return new OctetStreamData(new ByteArrayInputStream( apacheCanonicalizer.canonicalizeXPathNodeSet (nodeSet, inclusiveNamespaces))); } else { return new OctetStreamData(new ByteArrayInputStream( apacheCanonicalizer.canonicalizeXPathNodeSet(nodeSet))); } } catch (Exception e) { throw new TransformException(e); } } public Data transform(Data data, XMLCryptoContext xc, OutputStream os) throws TransformException { if (data == null) { throw new NullPointerException("data must not be null"); } if (os == null) { throw new NullPointerException("output stream must not be null"); } if (ownerDoc == null) { throw new TransformException("transform must be marshalled"); } if (apacheTransform == null) { try { apacheTransform = Transform.getInstance (ownerDoc, getAlgorithm(), transformElem.getChildNodes()); apacheTransform.setElement(transformElem, xc.getBaseURI()); if (log.isLoggable(Level.FINE)) { log.log(Level.FINE, "Created transform for algorithm: " + getAlgorithm()); } } catch (Exception ex) { throw new TransformException ("Couldn't find Transform for: " + getAlgorithm(), ex); } } XMLSignatureInput in; if (data instanceof ApacheData) { if (log.isLoggable(Level.FINE)) { log.log(Level.FINE, "ApacheData = true"); } in = ((ApacheData) data).getXMLSignatureInput(); } else if (data instanceof NodeSetData) { if (log.isLoggable(Level.FINE)) { log.log(Level.FINE, "isNodeSet() = true"); } if (data instanceof DOMSubTreeData) { DOMSubTreeData subTree = (DOMSubTreeData) data; in = new XMLSignatureInput(subTree.getRoot()); in.setExcludeComments(subTree.excludeComments()); } else { Set nodeSet = Utils.toNodeSet(((NodeSetData) data).iterator()); in = new XMLSignatureInput(nodeSet); } } else { if (log.isLoggable(Level.FINE)) { log.log(Level.FINE, "isNodeSet() = false"); } try { in = new XMLSignatureInput (((OctetStreamData)data).getOctetStream()); } catch (Exception ex) { throw new TransformException(ex); } } try { if (os != null) { in = apacheTransform.performTransform(in, os); if (!in.isNodeSet() && !in.isElement()) { return null; } } else { in = apacheTransform.performTransform(in); } if (in.isOctetStream()) { return new ApacheOctetStreamData(in); } else { return new ApacheNodeSetData(in); } } catch (Exception ex) { throw new TransformException(ex); } } public final boolean isFeatureSupported(String feature) { if (feature == null) { throw new NullPointerException(); } else { return false; } } }