+++ /dev/null
-package org.argeo.cms.text;
-
-import java.io.StringReader;
-import java.text.MessageFormat;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-import javax.xml.parsers.SAXParser;
-import javax.xml.parsers.SAXParserFactory;
-
-import org.eclipse.rap.rwt.SingletonUtil;
-import org.eclipse.swt.widgets.Widget;
-import org.xml.sax.Attributes;
-import org.xml.sax.InputSource;
-import org.xml.sax.helpers.DefaultHandler;
-
-/**
- * Copy of RAP v2.3 since it is in an internal package.
- */
-class MarkupValidatorCopy {
-
- // Used by Eclipse Scout project
- public static final String MARKUP_VALIDATION_DISABLED = "org.eclipse.rap.rwt.markupValidationDisabled";
-
- private static final String DTD = createDTD();
- private static final Map<String, String[]> SUPPORTED_ELEMENTS = createSupportedElementsMap();
- private final SAXParser saxParser;
-
- public static MarkupValidatorCopy getInstance() {
- return SingletonUtil.getSessionInstance(MarkupValidatorCopy.class);
- }
-
- public MarkupValidatorCopy() {
- saxParser = createSAXParser();
- }
-
- public void validate(String text) {
- StringBuilder markup = new StringBuilder();
- markup.append(DTD);
- markup.append("<html>");
- markup.append(text);
- markup.append("</html>");
- InputSource inputSource = new InputSource(new StringReader(markup.toString()));
- try {
- saxParser.parse(inputSource, new MarkupHandler());
- } catch (RuntimeException exception) {
- throw exception;
- } catch (Exception exception) {
- throw new IllegalArgumentException("Failed to parse markup text", exception);
- }
- }
-
- public static boolean isValidationDisabledFor(Widget widget) {
- return Boolean.TRUE.equals(widget.getData(MARKUP_VALIDATION_DISABLED));
- }
-
- private static SAXParser createSAXParser() {
- SAXParser result = null;
- SAXParserFactory parserFactory = SAXParserFactory.newInstance();
- try {
- result = parserFactory.newSAXParser();
- } catch (Exception exception) {
- throw new RuntimeException("Failed to create SAX parser", exception);
- }
- return result;
- }
-
- private static String createDTD() {
- StringBuilder result = new StringBuilder();
- result.append("<!DOCTYPE html [");
- result.append("<!ENTITY quot \""\">");
- result.append("<!ENTITY amp \"&\">");
- result.append("<!ENTITY apos \"'\">");
- result.append("<!ENTITY lt \"<\">");
- result.append("<!ENTITY gt \">\">");
- result.append("<!ENTITY nbsp \" \">");
- result.append("<!ENTITY ensp \" \">");
- result.append("<!ENTITY emsp \" \">");
- result.append("<!ENTITY ndash \"–\">");
- result.append("<!ENTITY mdash \"—\">");
- result.append("]>");
- return result.toString();
- }
-
- private static Map<String, String[]> createSupportedElementsMap() {
- Map<String, String[]> result = new HashMap<String, String[]>();
- result.put("html", new String[0]);
- result.put("br", new String[0]);
- result.put("b", new String[] { "style" });
- result.put("strong", new String[] { "style" });
- result.put("i", new String[] { "style" });
- result.put("em", new String[] { "style" });
- result.put("sub", new String[] { "style" });
- result.put("sup", new String[] { "style" });
- result.put("big", new String[] { "style" });
- result.put("small", new String[] { "style" });
- result.put("del", new String[] { "style" });
- result.put("ins", new String[] { "style" });
- result.put("code", new String[] { "style" });
- result.put("samp", new String[] { "style" });
- result.put("kbd", new String[] { "style" });
- result.put("var", new String[] { "style" });
- result.put("cite", new String[] { "style" });
- result.put("dfn", new String[] { "style" });
- result.put("q", new String[] { "style" });
- result.put("abbr", new String[] { "style", "title" });
- result.put("span", new String[] { "style" });
- result.put("img", new String[] { "style", "src", "width", "height", "title", "alt" });
- result.put("a", new String[] { "style", "href", "target", "title" });
- return result;
- }
-
- private static class MarkupHandler extends DefaultHandler {
-
- @Override
- public void startElement(String uri, String localName, String name, Attributes attributes) {
- checkSupportedElements(name, attributes);
- checkSupportedAttributes(name, attributes);
- checkMandatoryAttributes(name, attributes);
- }
-
- private static void checkSupportedElements(String elementName, Attributes attributes) {
- if (!SUPPORTED_ELEMENTS.containsKey(elementName)) {
- throw new IllegalArgumentException("Unsupported element in markup text: " + elementName);
- }
- }
-
- private static void checkSupportedAttributes(String elementName, Attributes attributes) {
- if (attributes.getLength() > 0) {
- List<String> supportedAttributes = Arrays.asList(SUPPORTED_ELEMENTS.get(elementName));
- int index = 0;
- String attributeName = attributes.getQName(index);
- while (attributeName != null) {
- if (!supportedAttributes.contains(attributeName)) {
- String message = "Unsupported attribute \"{0}\" for element \"{1}\" in markup text";
- message = MessageFormat.format(message, new Object[] { attributeName, elementName });
- throw new IllegalArgumentException(message);
- }
- index++;
- attributeName = attributes.getQName(index);
- }
- }
- }
-
- private static void checkMandatoryAttributes(String elementName, Attributes attributes) {
- checkIntAttribute(elementName, attributes, "img", "width");
- checkIntAttribute(elementName, attributes, "img", "height");
- }
-
- private static void checkIntAttribute(String elementName, Attributes attributes, String checkedElementName,
- String checkedAttributeName) {
- if (checkedElementName.equals(elementName)) {
- String attribute = attributes.getValue(checkedAttributeName);
- try {
- Integer.parseInt(attribute);
- } catch (NumberFormatException exception) {
- String message = "Mandatory attribute \"{0}\" for element \"{1}\" is missing or not a valid integer";
- Object[] arguments = new Object[] { checkedAttributeName, checkedElementName };
- message = MessageFormat.format(message, arguments);
- throw new IllegalArgumentException(message);
- }
- }
- }
-
- }
-
-}
projects / gpl / argeo-suite.git / blobdiff