/**
* Send JAR or JAR.PACK.GZ file to end user.
*
* @param filename Name of JAR file
* @param response Object for writing to end user.
* @throws java.io.IOException
*/
void sendJar(
JnlpJarFiles jnlpFiles,
String filename,
HttpServletRequest request,
HttpServletResponse response)
throws IOException {
logger.debug("Send jar file " + filename);
final File localFile = jnlpFiles.getJarFile(filename);
if (localFile == null || !localFile.exists()) {
response.sendError(
HttpServletResponse.SC_NOT_FOUND, "Jar file '" + filename + "' not found.");
return;
}
logger.debug("Actual file " + localFile.getAbsolutePath());
if (localFile.getName().endsWith(".jar")) {
// response.setHeader(CONTENT_ENCODING, JAR_MIME_TYPE);
response.setContentType(JAR_MIME_TYPE);
} else if (localFile.getName().endsWith(".jar.pack.gz")) {
response.setHeader(CONTENT_ENCODING, PACK200_GZIP_ENCODING);
response.setContentType(PACK_MIME_TYPE);
}
// It is very improbable that a 64 bit jar is needed, but
// it is better to be ready
// response.setContentLength(Integer.parseInt(Long.toString(localFile.length())));
response.setHeader("Content-Length", Long.toString(localFile.length()));
response.setDateHeader("Last-Modified", localFile.lastModified());
final FileInputStream fis = new FileInputStream(localFile);
final ServletOutputStream os = response.getOutputStream();
try {
// Transfer bytes from in to out
final byte[] buf = new byte[4096];
int len;
while ((len = fis.read(buf)) > 0) {
os.write(buf, 0, len);
}
} catch (final IllegalStateException ex) {
logger.debug(ex.getMessage());
} catch (final IOException ex) {
logger.debug("Ignore IOException for '" + filename + "'");
}
os.flush();
os.close();
fis.close();
}
/**
* Write JNLP xml file to browser.
*
* @param response Object for writing to end user.
* @throws java.io.IOException
*/
void writeJnlpXML(
JnlpJarFiles jnlpFiles, HttpServletRequest request, HttpServletResponse response)
throws IOException {
logger.debug("Writing JNLP file");
// Format URL: "http://host:8080/CONTEXT/webstart/exist.jnlp"
final String currentUrl = request.getRequestURL().toString();
// Find BaseUrl http://host:8080/CONTEXT
final int webstartPos = currentUrl.indexOf("/webstart");
final String existBaseUrl = currentUrl.substring(0, webstartPos);
// Find codeBase for jarfiles http://host:8080/CONTEXT/webstart/
final String codeBase = existBaseUrl + "/webstart/";
// Perfom sanity checks
int counter = 0;
for (final File jar : jnlpFiles.getAllWebstartJars()) {
counter++; // debugging
if (jar == null || !jar.exists()) {
response.sendError(
HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Missing Jar file! (" + counter + ")");
return;
}
}
// Find URL to connect to with client
final String startUrl =
existBaseUrl
.replaceFirst("http:", "xmldb:exist:")
.replaceFirst("https:", "xmldb:exist:")
.replaceAll("-", "%2D")
+ "/xmlrpc";
// response.setDateHeader("Last-Modified", mainJar.lastModified());
response.setContentType("application/x-java-jnlp-file");
try {
final XMLStreamWriter writer =
XMLOutputFactory.newInstance().createXMLStreamWriter(response.getOutputStream());
writer.writeStartDocument();
writer.writeStartElement("jnlp");
writer.writeAttribute("spec", "1.0+");
writer.writeAttribute("codebase", codeBase);
writer.writeAttribute("href", "exist.jnlp");
writer.writeStartElement("information");
writer.writeStartElement("title");
writer.writeCharacters("eXist XML-DB client");
writer.writeEndElement();
writer.writeStartElement("vendor");
writer.writeCharacters("exist-db.org");
writer.writeEndElement();
writer.writeStartElement("homepage");
writer.writeAttribute("href", "http://exist-db.org");
writer.writeEndElement();
writer.writeStartElement("description");
writer.writeCharacters(
"Integrated command-line and gui client, "
+ "entirely based on the XML:DB API and provides commands "
+ "for most database related tasks, like creating and "
+ "removing collections, user management, batch-loading "
+ "XML data or querying.");
writer.writeEndElement();
writer.writeStartElement("description");
writer.writeAttribute("kind", "short");
writer.writeCharacters("eXist XML-DB client");
writer.writeEndElement();
writer.writeStartElement("description");
writer.writeAttribute("kind", "tooltip");
writer.writeCharacters("eXist XML-DB client");
writer.writeEndElement();
writer.writeStartElement("icon");
writer.writeAttribute("href", "jnlp_logo.jpg");
writer.writeEndElement();
writer.writeStartElement("icon");
writer.writeAttribute("href", "jnlp_icon_128x128.gif");
writer.writeAttribute("width", "128");
writer.writeAttribute("height", "128");
writer.writeEndElement();
writer.writeStartElement("icon");
writer.writeAttribute("href", "jnlp_icon_64x64.gif");
writer.writeAttribute("width", "64");
writer.writeAttribute("height", "64");
writer.writeEndElement();
writer.writeStartElement("icon");
writer.writeAttribute("href", "jnlp_icon_32x32.gif");
writer.writeAttribute("width", "32");
writer.writeAttribute("height", "32");
writer.writeEndElement();
writer.writeEndElement(); // information
writer.writeStartElement("security");
writer.writeEmptyElement("all-permissions");
writer.writeEndElement();
// ----------
writer.writeStartElement("resources");
writer.writeStartElement("property");
writer.writeAttribute("name", "jnlp.packEnabled");
writer.writeAttribute("value", "true");
writer.writeEndElement();
writer.writeStartElement("j2se");
writer.writeAttribute("version", "1.6+");
writer.writeEndElement();
for (final File jar : jnlpFiles.getAllWebstartJars()) {
writer.writeStartElement("jar");
writer.writeAttribute("href", jar.getName());
writer.writeAttribute("size", "" + jar.length());
writer.writeEndElement();
}
writer.writeEndElement(); // resources
writer.writeStartElement("application-desc");
writer.writeAttribute("main-class", "org.exist.client.InteractiveClient");
writer.writeStartElement("argument");
writer.writeCharacters("-ouri=" + startUrl);
writer.writeEndElement();
writer.writeStartElement("argument");
writer.writeCharacters("--no-embedded-mode");
writer.writeEndElement();
if (request.isSecure()) {
writer.writeStartElement("argument");
writer.writeCharacters("--use-ssl");
writer.writeEndElement();
}
writer.writeEndElement(); // application-desc
writer.writeEndElement(); // jnlp
writer.writeEndDocument();
writer.flush();
writer.close();
} catch (final Throwable ex) {
logger.error(ex);
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, ex.getMessage());
}
}