Fix URIs for DTDs entered with a full path location under Windows

PR: 23913


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@275759 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/types/XMLCatalog.java

@@ -74,6 +74,7 @@ import javax.xml.transform.sax.SAXSource;
 import org.apache.tools.ant.AntClassLoader;
 import org.apache.tools.ant.BuildException;
 import org.apache.tools.ant.Project;
+import org.apache.tools.ant.taskdefs.condition.Os;
 import org.apache.tools.ant.util.FileUtils;
 import org.apache.tools.ant.util.JAXPUtils;
 import org.xml.sax.EntityResolver;
@@ -678,6 +679,8 @@ public class XMLCatalog extends DataType
     private InputSource filesystemLookup(ResourceLocation matchingEntry) {
 
         String uri = matchingEntry.getLocation();
+        // the following line seems to be necessary on Windows under JDK 1.2
+        uri = uri.replace(File.separatorChar, '/');
         URL baseURL = null;
 
         //
@@ -697,11 +700,25 @@ public class XMLCatalog extends DataType
 
         InputSource source = null;
         URL url = null;
-
         try {
             url = new URL(baseURL, uri);
         } catch (MalformedURLException ex) {
-            // ignore
+            // this processing is useful under Windows when the location of the DTD has been given as an absolute path
+            // see Bugzilla Report 23913
+            File testFile = new File(uri);
+            if (testFile.exists() && testFile.canRead()) {
+                log("uri : '"
+                    + uri + "' matches a readable file", Project.MSG_DEBUG);
+                try {
+                    url = fileUtils.getFileURL(testFile);
+                } catch (MalformedURLException ex1) {
+                    throw new BuildException("could not find an URL for :" + testFile.getAbsolutePath());
+                }
+            } else {
+                log("uri : '"
+                    + uri + "' does not match a readable file", Project.MSG_DEBUG);
+
+            }
         }
 
         if (url != null) {

src/testcases/org/apache/tools/ant/types/XMLCatalogTest.java

@@ -238,6 +238,29 @@ public class XMLCatalogTest extends TestCase {
             fail("resolveEntity() failed!" + e.toString());
         }
     }
+    // inspired by Bugzilla Report 23913
+    // a problem used to happen under Windows when the location of the DTD was given as an absolute path
+    // possibly with a mixture of file separators
+    public void testAbsolutePath() {
+        ResourceLocation dtd = new ResourceLocation();
+        dtd.setPublicId("-//stevo//DTD doc 1.0//EN");
+
+        String sysid = System.getProperty("user.dir") + File.separator + "src/etc/testcases/taskdefs/optional/xml/doc.dtd";
+        dtd.setLocation(sysid);
+        catalog.addDTD(dtd);
+        File dtdFile = project.resolveFile(sysid);
+
+        try {
+            InputSource result = catalog.resolveEntity("-//stevo//DTD doc 1.0//EN",
+                                                       "nap:chemical+brothers");
+            assertNotNull(result);
+            assertEquals(toURLString(dtdFile),
+                         result.getSystemId());
+        } catch (Exception e) {
+            fail("resolveEntity() failed!" + e.toString());
+        }
+
+    }
 
     public void testSimpleEntry() {