Beispiel #1
0
 /** Scan tag */
 public static Hashtable scanTag(Reader in) throws IOException {
   Hashtable atts = new Hashtable();
   skipSpace(in);
   while (c >= 0 && c != '>') {
     String att = scanIdentifier(in);
     String val = "";
     skipSpace(in);
     if (c == '=') {
       int quote = -1;
       c = in.read();
       skipSpace(in);
       if ((c == '\'') || (c == '\"')) {
         quote = c;
         c = in.read();
       }
       StringBuffer buf = new StringBuffer();
       while ((c > 0)
           && (((quote < 0)
                   && (c != ' ')
                   && (c != '\t')
                   && (c != '\n')
                   && (c != '\r')
                   && (c != '>'))
               || ((quote >= 0) && (c != quote)))) {
         buf.append((char) c);
         c = in.read();
       }
       if (c == quote) {
         c = in.read();
       }
       skipSpace(in);
       val = buf.toString();
     }
     // statusMsgStream.println("PUT " + att + " = '" + val + "'");
     if (!val.equals("")) {
       atts.put(att.toLowerCase(j86.java.util.Locale.ENGLISH), val);
     }
     while (true) {
       if ((c == '>')
           || (c < 0)
           || ((c >= 'a') && (c <= 'z'))
           || ((c >= 'A') && (c <= 'Z'))
           || ((c >= '0') && (c <= '9'))
           || (c == '_')) break;
       c = in.read();
     }
     // skipSpace(in);
   }
   return atts;
 }
Beispiel #2
0
 /** Scan identifier */
 public static String scanIdentifier(Reader in) throws IOException {
   StringBuffer buf = new StringBuffer();
   while (true) {
     if (((c >= 'a') && (c <= 'z'))
         || ((c >= 'A') && (c <= 'Z'))
         || ((c >= '0') && (c <= '9'))
         || (c == '_')) {
       buf.append((char) c);
       c = in.read();
     } else {
       return buf.toString();
     }
   }
 }
Beispiel #3
0
  public static void parse(URL url, PrintStream statusMsgStream, AppletViewerFactory factory)
      throws IOException {
    // <OBJECT> <EMBED> tag flags
    boolean isAppletTag = false;
    boolean isObjectTag = false;
    boolean isEmbedTag = false;

    // warning messages
    String requiresNameWarning = amh.getMessage("parse.warning.requiresname");
    String paramOutsideWarning = amh.getMessage("parse.warning.paramoutside");
    String appletRequiresCodeWarning = amh.getMessage("parse.warning.applet.requirescode");
    String appletRequiresHeightWarning = amh.getMessage("parse.warning.applet.requiresheight");
    String appletRequiresWidthWarning = amh.getMessage("parse.warning.applet.requireswidth");
    String objectRequiresCodeWarning = amh.getMessage("parse.warning.object.requirescode");
    String objectRequiresHeightWarning = amh.getMessage("parse.warning.object.requiresheight");
    String objectRequiresWidthWarning = amh.getMessage("parse.warning.object.requireswidth");
    String embedRequiresCodeWarning = amh.getMessage("parse.warning.embed.requirescode");
    String embedRequiresHeightWarning = amh.getMessage("parse.warning.embed.requiresheight");
    String embedRequiresWidthWarning = amh.getMessage("parse.warning.embed.requireswidth");
    String appNotLongerSupportedWarning = amh.getMessage("parse.warning.appnotLongersupported");

    j86.java.net.URLConnection conn = url.openConnection();
    Reader in = makeReader(conn.getInputStream());
    /* The original URL may have been redirected - this
     * sets it to whatever URL/codebase we ended up getting
     */
    url = conn.getURL();

    int ydisp = 1;
    Hashtable atts = null;

    while (true) {
      c = in.read();
      if (c == -1) break;

      if (c == '<') {
        c = in.read();
        if (c == '/') {
          c = in.read();
          String nm = scanIdentifier(in);
          if (nm.equalsIgnoreCase("applet")
              || nm.equalsIgnoreCase("object")
              || nm.equalsIgnoreCase("embed")) {

            // We can't test for a code tag until </OBJECT>
            // because it is a parameter, not an attribute.
            if (isObjectTag) {
              if (atts.get("code") == null && atts.get("object") == null) {
                statusMsgStream.println(objectRequiresCodeWarning);
                atts = null;
              }
            }

            if (atts != null) {
              // XXX 5/18 In general this code just simply
              // shouldn't be part of parsing.  It's presence
              // causes things to be a little too much of a
              // hack.
              factory.createAppletViewer(x, y, url, atts);
              x += XDELTA;
              y += YDELTA;
              // make sure we don't go too far!
              Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
              if ((x > d.width - 300) || (y > d.height - 300)) {
                x = 0;
                y = 2 * ydisp * YDELTA;
                ydisp++;
              }
            }
            atts = null;
            isAppletTag = false;
            isObjectTag = false;
            isEmbedTag = false;
          }
        } else {
          String nm = scanIdentifier(in);
          if (nm.equalsIgnoreCase("param")) {
            Hashtable t = scanTag(in);
            String att = (String) t.get("name");
            if (att == null) {
              statusMsgStream.println(requiresNameWarning);
            } else {
              String val = (String) t.get("value");
              if (val == null) {
                statusMsgStream.println(requiresNameWarning);
              } else if (atts != null) {
                atts.put(att.toLowerCase(), val);
              } else {
                statusMsgStream.println(paramOutsideWarning);
              }
            }
          } else if (nm.equalsIgnoreCase("applet")) {
            isAppletTag = true;
            atts = scanTag(in);
            if (atts.get("code") == null && atts.get("object") == null) {
              statusMsgStream.println(appletRequiresCodeWarning);
              atts = null;
            } else if (atts.get("width") == null) {
              statusMsgStream.println(appletRequiresWidthWarning);
              atts = null;
            } else if (atts.get("height") == null) {
              statusMsgStream.println(appletRequiresHeightWarning);
              atts = null;
            }
          } else if (nm.equalsIgnoreCase("object")) {
            isObjectTag = true;
            atts = scanTag(in);
            // The <OBJECT> attribute codebase isn't what
            // we want. If its defined, remove it.
            if (atts.get("codebase") != null) {
              atts.remove("codebase");
            }

            if (atts.get("width") == null) {
              statusMsgStream.println(objectRequiresWidthWarning);
              atts = null;
            } else if (atts.get("height") == null) {
              statusMsgStream.println(objectRequiresHeightWarning);
              atts = null;
            }
          } else if (nm.equalsIgnoreCase("embed")) {
            isEmbedTag = true;
            atts = scanTag(in);

            if (atts.get("code") == null && atts.get("object") == null) {
              statusMsgStream.println(embedRequiresCodeWarning);
              atts = null;
            } else if (atts.get("width") == null) {
              statusMsgStream.println(embedRequiresWidthWarning);
              atts = null;
            } else if (atts.get("height") == null) {
              statusMsgStream.println(embedRequiresHeightWarning);
              atts = null;
            }
          } else if (nm.equalsIgnoreCase("app")) {
            statusMsgStream.println(appNotLongerSupportedWarning);
            Hashtable atts2 = scanTag(in);
            nm = (String) atts2.get("class");
            if (nm != null) {
              atts2.remove("class");
              atts2.put("code", nm + ".class");
            }
            nm = (String) atts2.get("src");
            if (nm != null) {
              atts2.remove("src");
              atts2.put("codebase", nm);
            }
            if (atts2.get("width") == null) {
              atts2.put("width", "100");
            }
            if (atts2.get("height") == null) {
              atts2.put("height", "100");
            }
            printTag(statusMsgStream, atts2);
            statusMsgStream.println();
          }
        }
      }
    }
    in.close();
  }
Beispiel #4
0
 /** Scan spaces. */
 public static void skipSpace(Reader in) throws IOException {
   while ((c >= 0) && ((c == ' ') || (c == '\t') || (c == '\n') || (c == '\r'))) {
     c = in.read();
   }
 }