From 0872d2d8a64fd701776b272f49222428d8def07f Mon Sep 17 00:00:00 2001
From: Andreas Fitzek <andreas.fitzek@iaik.tugraz.at>
Date: Tue, 3 Nov 2015 14:38:34 +0100
Subject: initial commit

---
 .../moa/spss/util/MOASPSSEntityResolver.java       | 142 +++++++++++++++++++++
 1 file changed, 142 insertions(+)
 create mode 100644 moaSig/moa-sig-lib/src/main/java/at/gv/egovernment/moa/spss/util/MOASPSSEntityResolver.java

(limited to 'moaSig/moa-sig-lib/src/main/java/at/gv/egovernment/moa/spss/util/MOASPSSEntityResolver.java')

diff --git a/moaSig/moa-sig-lib/src/main/java/at/gv/egovernment/moa/spss/util/MOASPSSEntityResolver.java b/moaSig/moa-sig-lib/src/main/java/at/gv/egovernment/moa/spss/util/MOASPSSEntityResolver.java
new file mode 100644
index 0000000..b5f72c4
--- /dev/null
+++ b/moaSig/moa-sig-lib/src/main/java/at/gv/egovernment/moa/spss/util/MOASPSSEntityResolver.java
@@ -0,0 +1,142 @@
+/*
+ * Copyright 2003 Federal Chancellery Austria
+ * MOA-ID has been developed in a cooperation between BRZ, the Federal
+ * Chancellery Austria - ICT staff unit, and Graz University of Technology.
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://www.osor.eu/eupl/
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ *
+ * This product combines work with different licenses. See the "NOTICE" text
+ * file for details on the various modules and licenses.
+ * The "NOTICE" text file is part of the distribution. Any derivative works
+ * that you distribute must include a readable copy of the "NOTICE" text file.
+ */
+
+package at.gv.egovernment.moa.spss.util;
+
+import java.io.InputStream;
+
+import org.apache.xerces.util.URI;
+import org.apache.xerces.util.URI.MalformedURIException;
+import org.xml.sax.EntityResolver;
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
+
+import at.gv.egovernment.moa.logging.LogMsg;
+import at.gv.egovernment.moa.logging.Logger;
+import at.gv.egovernment.moa.spss.MOAApplicationException;
+import at.gv.egovernment.moa.util.Constants;
+
+
+/**
+ * An <code>EntityResolver</code> that looks up entities stored as
+ * local resources.
+ * 
+ * <p>The following DTDs are mapped to local resources: 
+ * <ul>
+ * <li>The XMLSchema.dtd</li>
+ * <li>The datatypes.dtd</li>
+ * </ul>
+ * </p>
+ * <p>For all other resources, an attempt is made to resolve them as resources,
+ * either absolute or relative to <code>Constants.SCHEMA_ROOT</code>.
+ * 
+ * @author Patrick Peck
+ * @author Sven Aigner
+ */
+public class MOASPSSEntityResolver implements EntityResolver {
+
+  /**
+   * Resolve an entity.
+   * 
+   * The <code>systemId</code> parameter is used to perform the lookup of the
+   * entity as a resource, either by interpreting the <code>systemId</code> as
+   * an absolute resource path, or by appending the last path component of
+   * <code>systemId</code> to <code>Constants.SCHEMA_ROOT</code>.
+   * 
+   * @param publicId The public ID of the resource.
+   * @param systemId The system ID of the resource.
+   * @return An <code>InputSource</code> from which the entity can be read, or
+   * <code>null</code>, if the entity could not be found.
+   * @see org.xml.sax.EntityResolver#resolveEntity(java.lang.String, java.lang.String)
+   */
+  public InputSource resolveEntity(String publicId, String systemId) throws SAXException {
+    InputStream stream;
+    int slashPos;
+    
+    if (Logger.isDebugEnabled()) {
+      Logger.debug(
+        new LogMsg("resolveEntity: p=" + publicId + " s=" + systemId));
+    }
+
+    if (publicId != null) {
+      // check if we can resolve some standard dtd's
+      if (publicId.equalsIgnoreCase("-//W3C//DTD XMLSchema 200102//EN")) {
+        return new InputSource(
+          getClass().getResourceAsStream(
+            Constants.SCHEMA_ROOT + "XMLSchema.dtd"));
+      } else if (publicId.equalsIgnoreCase("datatypes")) {
+        return new InputSource(
+          getClass().getResourceAsStream(
+            Constants.SCHEMA_ROOT + "datatypes.dtd"));
+      }
+    } else if (systemId != null) {
+      // get the URI path
+      try {
+        URI uri = new URI(systemId);
+        systemId = uri.getPath();
+        
+        if ("".equals(systemId.trim())) {
+          return null;
+        }
+        
+//        if (!"file".equals(uri.getScheme()) || "".equals(systemId.trim())) {
+//          return null;
+//        }
+
+        ExternalURIVerifier.verify(uri.getHost(), uri.getPort());
+        
+      } catch (MalformedURIException e) {
+        return null;
+      } 
+      catch (MOAApplicationException e) {
+			throw new SAXException(e);
+      }
+      
+      // try to get the resource from the full path
+      stream = getClass().getResourceAsStream(systemId);
+      if (stream != null) {
+        InputSource source = new InputSource(stream);
+
+        source.setSystemId(systemId);
+        return source;
+      }
+
+      // try to get the resource from the last path component
+      slashPos = systemId.lastIndexOf('/');
+      if (slashPos >= 0 && systemId.length() > slashPos) {
+        systemId = systemId.substring(slashPos + 1, systemId.length());
+        stream =
+          getClass().getResourceAsStream(Constants.SCHEMA_ROOT + systemId);
+        if (stream != null) {
+          InputSource source = new InputSource(stream);
+
+          source.setSystemId(systemId);
+          return source;
+        }
+      }
+    }
+
+    return null; // nothing found - let the parser handle the entity
+  }
+
+}
-- 
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