1 files changed, 95 insertions, 0 deletions
diff --git a/BKUViewer/src/main/java/at/gv/egiz/bku/slxhtml/css/CSSValidatorSLXHTML.java b/BKUViewer/src/main/java/at/gv/egiz/bku/slxhtml/css/CSSValidatorSLXHTML.java
new file mode 100644
index 00000000..7abe4741
--- /dev/null
+++ b/BKUViewer/src/main/java/at/gv/egiz/bku/slxhtml/css/CSSValidatorSLXHTML.java
@@ -0,0 +1,95 @@
+/*
+* Copyright 2008 Federal Chancellery Austria and
+* Graz University of Technology
+*
+* 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 at.gv.egiz.bku.slxhtml.css;
+
+import java.io.InputStream;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Locale;
+
+import org.w3c.css.css.CssParser;
+import org.w3c.css.css.StyleSheet;
+import org.w3c.css.css.StyleSheetParser;
+import org.w3c.css.parser.CssError;
+import org.w3c.css.parser.Errors;
+import org.w3c.css.util.ApplContext;
+import org.w3c.css.util.Util;
+import org.w3c.css.util.Warning;
+import org.w3c.css.util.Warnings;
+
+import at.gv.egiz.bku.viewer.ValidationException;
+
+public class CSSValidatorSLXHTML {
+  
+  public void validate(InputStream input, Locale locale, String title, int lineno) throws ValidationException {
+    
+    // disable imports
+    Util.importSecurity = true;
+    
+    CssParser cssParser = new StyleSheetParser();
+    
+    ApplContext ac = new ApplContext(locale.getLanguage());
+    ac.setCssVersion("slxhtml");
+    ac.setMedium("all");
+    
+    URL url;
+    try {
+      url = new URL("http://test.xyz");
+    } catch (MalformedURLException e) {
+      throw new RuntimeException(e);
+    }
+    
+    cssParser.parseStyleElement(ac, input, title, "all", url, lineno);
+    
+    StyleSheet styleSheet = cssParser.getStyleSheet();
+
+    // find conflicts
+    styleSheet.findConflicts(ac);
+
+    boolean valid = true;
+    StringBuilder sb = new StringBuilder().append("CSS:");
+
+    // look for errors
+    Errors errors = styleSheet.getErrors();
+    if (errors.getErrorCount() != 0) {
+      valid = false;
+      CssError[] cssErrors = errors.getErrors();
+      for (CssError cssError : cssErrors) {
+        Exception exception = cssError.getException();
+        sb.append(" ");
+        sb.append(exception.getMessage());
+      }
+    }
+
+    // look for warnings
+    Warnings warnings = styleSheet.getWarnings();
+    if (warnings.getWarningCount() != 0) {
+      valid = false;
+      Warning[] cssWarnings = warnings.getWarnings();
+      for (Warning warning : cssWarnings) {
+        sb.append(" ");
+        sb.append(warning.getWarningMessage());
+      }
+    }
+    
+    if (!valid) {
+      throw new ValidationException(sb.toString());
+    }
+    
+  }
+
+}