Example #1
0
  public void endElement() {

    XMLElement e = parser.getCurrentElement();
    if (e.getNamespace().equals("http://purl.org/dc/elements/1.1/")) {
      String name = e.getName();
      if (name.equals("identifier")) {
        String idAttr = e.getAttribute("id");
        if (idAttr != null && !idAttr.equals("") && idAttr.equals(uniqueIdent)) {
          //					String idval = (String) e.getPrivateData();
          //					if (idval != null && ocf != null)
          //						ocf.setUniqueIdentifier(idval);
        }
      } else if (name.equals("date")) {
        String dateval = (String) e.getPrivateData();
        boolean valid = true;
        String detail = null;

        if (dateval == null || "".equals(dateval)) {
          valid = false;
          detail = "zero-length string";
        } else {
          DateParser dateParser = new DateParser();
          try {
            Date date = dateParser.parse(dateval.trim());
            /*
             * mg: DateParser does not enforce four-digit years,
             * which http://www.w3.org/TR/NOTE-datetime seems to want
             */
            String year = new SimpleDateFormat("yyyy").format(date);
            if (year.length() > 4) throw new InvalidDateException(year);
          } catch (InvalidDateException d) {
            valid = false;
            detail = d.getMessage();
          }
        }

        if (!valid) {
          if (this.version == EPUBVersion.VERSION_3) {
            report.warning(
                path,
                parser.getLineNumber(),
                parser.getColumnNumber(),
                "date value '"
                    + (dateval == null ? "" : dateval)
                    + "' does not follow recommended syntax as per http://www.w3.org/TR/NOTE-datetime:"
                    + detail);
          } else {
            report.error(
                path,
                parser.getLineNumber(),
                parser.getColumnNumber(),
                "date value '"
                    + (dateval == null ? "" : dateval)
                    + "' is not valid as per http://www.w3.org/TR/NOTE-datetime:"
                    + detail);
          }
        }
      } else if (name.equals("title") || name.equals("language")) {
        // issue 138: issue a warning if dc:title and dc:language is empty for 2.0 and 2.0.1
        // note that an empty dc:identifier is checked in opf20.rng and will
        // therefore be reported as an error, that may or may not be a good idea.

        if (version == EPUBVersion.VERSION_2) {
          String value = (String) e.getPrivateData();
          if (value == null || value.trim().length() < 1) {
            report.warning(
                path, parser.getLineNumber(), parser.getColumnNumber(), name + " element is empty");
          }
        }
      }
    }
  }
Example #2
0
  public void startElement() {
    boolean registerEntry = true;
    XMLElement e = parser.getCurrentElement();
    String ns = e.getNamespace();
    if (ns == null
        || ns.equals("")
        || ns.equals("http://openebook.org/namespaces/oeb-package/1.0/")
        || ns.equals("http://www.idpf.org/2007/opf")) {
      String name = e.getName();
      if (name.equals("package")) {
        if (!ns.equals("http://www.idpf.org/2007/opf")) {
          report.warning(
              path,
              parser.getLineNumber(),
              parser.getColumnNumber(),
              "OPF file is using OEBPS 1.2 syntax allowing backwards compatibility");
          opf12PackageFile = true;
        }
        /*
         * This section checks to see the value of the unique-identifier
         * attribute and stores it in the String uniqueIdent or reports
         * an error if the unique-identifier attribute is missing or
         * does not have a value
         */
        String uniqueIdentAttr = e.getAttribute("unique-identifier");
        if (uniqueIdentAttr != null && !uniqueIdentAttr.equals("")) {
          uniqueIdent = uniqueIdentAttr;
        } else {
          report.error(
              path,
              parser.getLineNumber(),
              parser.getColumnNumber(),
              "unique-identifier attribute in package element must be present and have a value");
        }
      } else if (name.equals("item")) {
        String id = e.getAttribute("id");
        String href = e.getAttribute("href");
        if (href != null && !(version == EPUBVersion.VERSION_3 && href.startsWith("http://"))) {
          try {
            href = PathUtil.resolveRelativeReference(path, href, null);
          } catch (IllegalArgumentException ex) {
            report.error(path, parser.getLineNumber(), parser.getColumnNumber(), ex.getMessage());
            href = null;
          }
        }
        String mimeType = e.getAttribute("media-type");
        String fallback = e.getAttribute("fallback");
        String fallbackStyle = e.getAttribute("fallback-style");
        String namespace = e.getAttribute("island-type");
        String properties = e.getAttribute("properties");
        if (properties != null) properties = properties.replaceAll("[\\s]+", " ");

        if (version == EPUBVersion.VERSION_3
            && href.startsWith("http://")
            && !OPFChecker30.isBlessedAudioType(mimeType))
          if (OPFChecker30.isCoreMediaType(mimeType)) {
            report.error(
                path,
                parser.getLineNumber(),
                parser.getColumnNumber(),
                "Only audio and video remote resources are permitted");
          } else {
            // mgy 20120414: this shouldn't even be a warning
            //						report.warning(
            //								path,
            //								parser.getLineNumber(),
            //								parser.getColumnNumber(),
            //								"Remote resource not validated");
          }

        OPFItem item =
            new OPFItem(
                id,
                href,
                mimeType,
                fallback,
                fallbackStyle,
                namespace,
                properties,
                parser.getLineNumber(),
                parser.getColumnNumber());

        if (id != null) itemMapById.put(id, item);
        if (properties != null) {
          String propertyArray[] = properties.split(" ");
          for (int i = 0; i < propertyArray.length; i++) {
            if (propertyArray[i].equals("nav")) item.setNav(true);
            if (propertyArray[i].equals("scripted")) item.setScripted(true);
          }
        }
        if (href != null && registerEntry) {
          itemMapByPath.put(href, item);
          items.add(item);
        }
      } else if (name.equals("reference")) {
        String type = e.getAttribute("type");
        String title = e.getAttribute("title");
        String href = e.getAttribute("href");
        if (href != null && xrefChecker != null) {
          try {
            href = PathUtil.resolveRelativeReference(path, href, null);
            xrefChecker.registerReference(
                path,
                parser.getLineNumber(),
                parser.getColumnNumber(),
                href,
                XRefChecker.RT_GENERIC);
          } catch (IllegalArgumentException ex) {
            report.error(path, parser.getLineNumber(), parser.getColumnNumber(), ex.getMessage());
            href = null;
          }
        }
        OPFReference ref =
            new OPFReference(type, title, href, parser.getLineNumber(), parser.getColumnNumber());
        refs.add(ref);
      } else if (name.equals("spine")) {
        String idref = e.getAttribute("toc");
        if (idref != null) {
          toc = (OPFItem) itemMapById.get(idref);
          if (toc == null)
            report.error(
                path,
                parser.getLineNumber(),
                parser.getColumnNumber(),
                "item with id '" + idref + "' not found");
          else {
            toc.setNcx(true);
            if (toc.getMimeType() != null && !toc.getMimeType().equals("application/x-dtbncx+xml"))
              report.error(
                  path,
                  parser.getLineNumber(),
                  parser.getColumnNumber(),
                  "toc attribute references resource with non-NCX mime type; \"application/x-dtbncx+xml\" is expected");
          }
        }
      } else if (name.equals("itemref")) {
        String idref = e.getAttribute("idref");
        if (idref != null) {
          OPFItem item = getItemById(idref);
          if (item != null) {
            spine.add(item);
            item.setInSpine(true);

            String linear = e.getAttribute("linear");
            if (linear != null && "no".equals(linear.trim())) {
              item.setSpineLinear(false);
            } else {
              item.setSpineLinear(true);
            }

          } else {
            report.error(
                path,
                parser.getLineNumber(),
                parser.getColumnNumber(),
                "item with id '" + idref + "' not found");
          }
        }
      } else if (name.equals("dc-metadata") || name.equals("x-metadata")) {
        if (!opf12PackageFile)
          report.error(
              path,
              parser.getLineNumber(),
              parser.getColumnNumber(),
              "use of deprecated element '" + name + "'");
      }
    } else if (ns.equals("http://purl.org/dc/elements/1.1/")) {
      // in the DC metadata, when the <identifier> element is parsed, if
      // it has a non-null and non-empty id attribute value that is the
      // same as the value of the unique-identifier attribute of the
      // package element, set uniqueIdentExists = true (to make sure that
      // the unique-identifier attribute references an existing
      // <identifier> id attribute
      String name = e.getName();
      if (name.equals("identifier")) {
        String idAttr = e.getAttribute("id");
        if (idAttr != null && !idAttr.equals("") && idAttr.equals(uniqueIdent))
          uniqueIdentExists = true;
      } else if (name.equals("creator")) {
        String role = e.getAttributeNS("http://www.idpf.org/2007/opf", "role");
        if (role != null && !role.equals("")) {
          if (!isValidRole(role))
            report.error(
                path,
                parser.getLineNumber(),
                parser.getColumnNumber(),
                "role value '" + role + "' is not valid");
        }
      }
    }
  }