/* Main method to lookup an entry */
public synchronized DownloadResponse getJnlpFile(JnlpResource jnlpres, DownloadRequest dreq)
throws IOException {
String path = jnlpres.getPath();
URL resource = jnlpres.getResource();
long lastModified = jnlpres.getLastModified();
_log.addDebug("lastModified: " + lastModified + " " + new Date(lastModified));
if (lastModified == 0) {
_log.addWarning("servlet.log.warning.nolastmodified", path);
}
// fix for 4474854: use the request URL as key to look up jnlp file
// in hash map
String reqUrl = HttpUtils.getRequestURL(dreq.getHttpRequest()).toString();
// Check if entry already exist in HashMap
JnlpFileEntry jnlpFile = (JnlpFileEntry) _jnlpFiles.get(reqUrl);
if (jnlpFile != null && jnlpFile.getLastModified() == lastModified) {
// Entry found in cache, so return it
return jnlpFile.getResponse();
}
// Read information from WAR file
long timeStamp = lastModified;
String mimeType = _servletContext.getMimeType(path);
if (mimeType == null) mimeType = JNLP_MIME_TYPE;
StringBuilder jnlpFileTemplate = new StringBuilder();
URLConnection conn = resource.openConnection();
final InputStream is = conn.getInputStream();
final InputStreamReader reader = new InputStreamReader(is);
char[] chars = new char[1024];
int read;
while ((read = reader.read(chars)) != -1) {
jnlpFileTemplate.append(chars, 0, read);
}
try {
is.close();
} catch (IOException e) {
// should never happen and if it does, we're not handling this. It should be save to ignore
}
String jnlpFileContent =
specializeJnlpTemplate(dreq.getHttpRequest(), path, jnlpFileTemplate.toString());
// Convert to bytes as a UTF-8 encoding
byte[] byteContent = jnlpFileContent.getBytes("UTF-8");
// Create entry
DownloadResponse resp =
DownloadResponse.getFileDownloadResponse(
byteContent, mimeType, timeStamp, jnlpres.getReturnVersionId());
jnlpFile = new JnlpFileEntry(resp, lastModified);
_jnlpFiles.put(reqUrl, jnlpFile);
return resp;
}
/* Main method to lookup an entry (NEW for JavaWebStart 1.5+) */
public synchronized DownloadResponse getJnlpFileEx(JnlpResource jnlpres, DownloadRequest dreq)
throws IOException {
String path = jnlpres.getPath();
URL resource = jnlpres.getResource();
long lastModified = jnlpres.getLastModified();
_log.addDebug("lastModified: " + lastModified + " " + new Date(lastModified));
if (lastModified == 0) {
_log.addWarning("servlet.log.warning.nolastmodified", path);
}
// fix for 4474854: use the request URL as key to look up jnlp file
// in hash map
String reqUrl = HttpUtils.getRequestURL(dreq.getHttpRequest()).toString();
// SQE: To support query string, we changed the hash key from Request URL to (Request URL +
// query string)
if (dreq.getQuery() != null) reqUrl += dreq.getQuery();
// Check if entry already exist in HashMap
JnlpFileEntry jnlpFile = (JnlpFileEntry) _jnlpFiles.get(reqUrl);
if (jnlpFile != null && jnlpFile.getLastModified() == lastModified) {
// Entry found in cache, so return it
return jnlpFile.getResponse();
}
// Read information from WAR file
long timeStamp = lastModified;
String mimeType = _servletContext.getMimeType(path);
if (mimeType == null) mimeType = JNLP_MIME_TYPE;
StringBuffer jnlpFileTemplate = new StringBuffer();
URLConnection conn = resource.openConnection();
BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
String line = br.readLine();
if (line != null && line.startsWith("TS:")) {
timeStamp = parseTimeStamp(line.substring(3));
_log.addDebug("Timestamp: " + timeStamp + " " + new Date(timeStamp));
if (timeStamp == 0) {
_log.addWarning("servlet.log.warning.notimestamp", path);
timeStamp = lastModified;
}
line = br.readLine();
}
while (line != null) {
jnlpFileTemplate.append(line);
line = br.readLine();
}
String jnlpFileContent =
specializeJnlpTemplate(dreq.getHttpRequest(), path, jnlpFileTemplate.toString());
/* SQE: We need to add query string back to href in jnlp file. We also need to handle JRE requirement for
* the test. We reconstruct the xml DOM object, modify the value, then regenerate the jnlpFileContent.
*/
String query = dreq.getQuery();
String testJRE = dreq.getTestJRE();
_log.addDebug("Double check query string: " + query);
// For backward compatibility: Always check if the href value exists.
// Bug 4939273: We will retain the jnlp template structure and will NOT add href value. Above
// old
// approach to always check href value caused some test case not run.
// NOTE OTC:
// This section has been rewritten:
// - Switched from JAX to JDOM, allowing to preserve the formatting of the file
// - regeneration based on the DOM will only be done if there are any changes to the file
if (query != null && query.trim().length() > 0) {
byte[] cb = jnlpFileContent.getBytes("UTF-8");
try {
final XMLInputFactory factory = XMLInputFactory.newFactory();
final XMLEventReader reader = factory.createXMLEventReader(new ByteArrayInputStream(cb));
final StAXEventBuilder builder = new StAXEventBuilder();
final org.jdom2.Document document = builder.build(reader);
boolean modified = false;
final org.jdom2.Element root = document.getRootElement();
if (root.getAttribute("href") != null) {
String href = root.getAttribute("href").getValue();
root.setAttribute("href", href + "?" + query);
modified = true;
}
// Update version value for j2se tag
if (testJRE != null) {
org.jdom2.Element j2se = root.getChild("j2se");
if (j2se != null) {
String ver = j2se.getAttribute("version").getValue();
if (ver.length() > 0) {
j2se.setAttribute("version", testJRE);
modified = true;
}
}
}
if (modified) {
// we're only regenerating only if there have been any changes.
final XMLOutputter outputter = new XMLOutputter();
final StringWriter sw = new StringWriter();
outputter.output(document, sw);
jnlpFileContent = sw.toString();
}
_log.addDebug("Converted jnlpFileContent: " + jnlpFileContent);
// Since we modified the file on the fly, we always update the timestamp value with current
// time
if (modified) {
timeStamp = new Date().getTime();
_log.addDebug("Last modified on the fly: " + timeStamp);
}
} catch (Exception e) {
_log.addDebug(e.toString(), e);
}
}
// Convert to bytes as a UTF-8 encoding
byte[] byteContent = jnlpFileContent.getBytes("UTF-8");
// Create entry
DownloadResponse resp =
DownloadResponse.getFileDownloadResponse(
byteContent, mimeType, timeStamp, jnlpres.getReturnVersionId());
jnlpFile = new JnlpFileEntry(resp, lastModified);
_jnlpFiles.put(reqUrl, jnlpFile);
return resp;
}
