protected void setCaching(HttpExchange he, String type, File f) {
if (Settings.getInstance().enable("Caching.Enabled")) {
// We're cool, so cache publically by default
he.setResponseHeader("Last-Modified", HttpFields.formatDate(f.lastModified()));
if (type.startsWith("text/") || Settings.getInstance().enable("Caching.MandatoryRecheck")) {
he.setResponseHeader("Cache-Control", "public, max-age=0");
} else {
// Content files do not need to be rechecked every time
he.setResponseHeader("Cache-Control", "public, max-age=86400");
}
}
}
protected byte[] tryToDeflate(HttpExchange he, String type, byte[] file) {
if (he.getRequestHeader("Accept-Encoding") == null
|| he.getRequestHeader("User-Agent") == null) {
return file;
}
// Deflate for maximum awesomeness
// Chrome and IE have some bugs ><
if (he.getRequestHeader("Accept-Encoding").toString().contains("deflate")
&& (type.contains("text") || type.contains("application"))
&& !he.getRequestHeader("User-Agent").toString().contains("Chrome")
&& !he.getRequestHeader("User-Agent").toString().contains("MSIE")) {
Deflater deflater = new Deflater(Deflater.DEFLATED, false);
byte[] deflated = new byte[file.length];
deflater.setInput(file);
deflater.finish();
he.setResponseHeader("Content-Encoding", "deflate");
return deflated;
} else {
return file;
}
}
@Override
public void handle(HttpExchange he) throws IOException {
String requestMethod = he.getRequestMethod();
if (requestMethod.equalsIgnoreCase("GET")) {
try (OutputStream responseBody = he.getResponseBody()) {
String requestURI = "";
if (ppi != null) {
requestURI = ppi.getRewrittenPath(he.getRequestURI());
} else {
requestURI = he.getRequestURI();
}
if (requestURI.equals("/") && searchForIndex) {
requestURI += "index.html";
}
String filePath = getRootFolder() + requestURI;
// Strip out ../ and ./
Path normalized = Paths.get(filePath);
normalized = normalized.normalize();
path = normalized.toString();
File f = new File(filePath);
if (!f.exists() || f.isDirectory()) {
Logger.getLogger(getClass()).log(Level.INFO, "404 " + filePath);
he.sendResponseHeaders(404);
he.close();
return;
}
Session session = Sessions.getInstance().getSession(he.getRequest().getSession().getId());
boolean authorized = false;
if (session != null) {
authorized = Authorize.path(requestURI, session.getTicket());
} else {
authorized = Authorize.path(requestURI, null);
}
if (!authorized) {
Logger.getLogger(getClass()).log(Level.INFO, "403 " + filePath);
he.sendResponseHeaders(403);
he.close();
return;
}
if (Settings.getInstance().enable("Caching.Enabled")
&& he.getRequest().getHeader("If-Modified-Since") != null) {
long lms = HttpFields.parseDate(he.getRequestHeader("If-Modified-Since"));
if (f.lastModified() <= lms) {
he.sendResponseHeaders(304);
return;
}
}
// Try to determine MIME type in a way that does not blow up in our face
MagicMatch match = null;
String type = "";
try {
match = Magic.getMagicMatch(f, true);
} catch (MagicParseException | MagicMatchNotFoundException | MagicException ex) {
// Magic failed - but well just ignore this for the time being
} finally {
if (match != null) {
type = match.getMimeType();
} else {
type = "text/html";
}
}
byte[] file = null;
type = reconsiderType(type, f);
if (type.equals("text/markdown")) {
file = Processor.process(f).getBytes("UTF-8");
}
if (file == null) {
file = getBytesFromFile(f);
}
// file = tryToDeflate(he, type, file);
he.setResponseHeader("Content-Type", type + "; charset=UTF-8");
he.setResponseHeader("Server", "W Application Server");
setCaching(he, type, f);
// X-tra headers
he.setResponseHeader("X-Pandas-FTW", "true");
he.setResponseHeader("X-UA-Compatible", "IE=edge,chrome=1");
he.setResponseHeader("X-XSS-Protection", "1; mode=block");
he.sendResponseHeaders(200);
responseBody.write(file);
file = null;
} catch (IOException ex) {
Logger.getLogger(DefaultApplication.class.getName()).log(Level.INFO, "Response failed", ex);
}
}
}