/** Handles requests for user uploaded resources. */
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
Weblog weblog;
// String ctx = request.getContextPath();
// String servlet = request.getServletPath();
// String reqURI = request.getRequestURI();
WeblogResourceRequest resourceRequest;
try {
// parse the incoming request and extract the relevant data
resourceRequest = new WeblogResourceRequest(request);
weblog = resourceRequest.getWeblog();
if (weblog == null) {
throw new WebloggerException(
"unable to lookup weblog: " + resourceRequest.getWeblogHandle());
}
} catch (Exception e) {
// invalid resource request or weblog doesn't exist
if (!response.isCommitted()) {
response.reset();
}
log.debug("error creating weblog resource request", e);
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
log.debug("Resource requested [" + resourceRequest.getResourcePath() + "]");
long resourceLastMod = 0;
InputStream resourceStream = null;
// first see if resource comes from weblog's shared theme
try {
WeblogTheme weblogTheme = weblog.getTheme();
if (weblogTheme != null) {
ThemeResource resource = weblogTheme.getResource(resourceRequest.getResourcePath());
if (resource != null) {
resourceLastMod = resource.getLastModified();
resourceStream = resource.getInputStream();
}
}
} catch (Exception ex) {
// hmmm, some kind of error getting theme. that's an error.
if (!response.isCommitted()) {
response.reset();
}
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
return;
}
// if not from theme then see if resource is in weblog's upload dir
if (resourceStream == null) {
try {
MediaFileManager mmgr = WebloggerFactory.getWeblogger().getMediaFileManager();
MediaFile mf = mmgr.getMediaFileByOriginalPath(weblog, resourceRequest.getResourcePath());
resourceLastMod = mf.getLastModified();
resourceStream = mf.getInputStream();
} catch (Exception ex) {
// still not found? then we don't have it, 404.
if (!response.isCommitted()) {
response.reset();
}
log.debug("Unable to get resource", ex);
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
}
// Respond with 304 Not Modified if it is not modified.
if (ModDateHeaderUtil.respondIfNotModified(
request, response, resourceLastMod, resourceRequest.getDeviceType())) {
return;
} else {
// set last-modified date
ModDateHeaderUtil.setLastModifiedHeader(
response, resourceLastMod, resourceRequest.getDeviceType());
}
// set the content type based on whatever is in our web.xml mime defs
response.setContentType(this.context.getMimeType(resourceRequest.getResourcePath()));
OutputStream out;
try {
// ok, lets serve up the file
byte[] buf = new byte[RollerConstants.EIGHT_KB_IN_BYTES];
int length;
out = response.getOutputStream();
while ((length = resourceStream.read(buf)) > 0) {
out.write(buf, 0, length);
}
// close output stream
out.close();
} catch (Exception ex) {
if (!response.isCommitted()) {
response.reset();
}
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
} finally {
// make sure stream to resource file is closed
resourceStream.close();
}
}
/** Handle GET requests for weblog pages. */
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
log.debug("Entering");
Weblog weblog = null;
WeblogRequest weblogRequest = null;
try {
weblogRequest = new WeblogRequest(request);
// now make sure the specified weblog really exists
weblog = weblogRequest.getWeblog();
if (weblog == null) {
throw new WebloggerException("Unable to lookup weblog: " + weblogRequest.getWeblogHandle());
}
} catch (Exception e) {
// invalid rsd request format or weblog doesn't exist
log.debug("error creating weblog request", e);
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
// Respond with 304 Not Modified if it is not modified.
long lastModified = System.currentTimeMillis();
if (weblog.getLastModified() != null) {
lastModified = weblog.getLastModified().getTime();
}
if (ModDateHeaderUtil.respondIfNotModified(request, response, lastModified)) {
return;
}
// set last-modified date
ModDateHeaderUtil.setLastModifiedHeader(response, lastModified);
// set the content type
response.setContentType("application/rsd+xml; charset=utf-8");
// populate the model
HashMap model = new HashMap();
model.put("website", weblog);
model.put("absBaseURL", WebloggerRuntimeConfig.getAbsoluteContextURL());
// lookup Renderer we are going to use
Renderer renderer = null;
try {
log.debug("Looking up renderer");
Template template = new StaticTemplate("rsd.vm", "velocity");
renderer = RendererManager.getRenderer(template, DeviceType.standard);
} catch (Exception e) {
// nobody wants to render my content :(
log.error("Couldn't find renderer for rsd template", e);
if (!response.isCommitted()) response.reset();
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
// render content
CachedContent rendererOutput = new CachedContent(4096);
try {
log.debug("Doing rendering");
renderer.render(model, rendererOutput.getCachedWriter());
// flush rendered output and close
rendererOutput.flush();
rendererOutput.close();
} catch (Exception e) {
// bummer, error during rendering
log.error("Error during rendering for rsd template", e);
if (!response.isCommitted()) response.reset();
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
// post rendering process
// flush rendered content to response
log.debug("Flushing response output");
response.setContentLength(rendererOutput.getContent().length);
response.getOutputStream().write(rendererOutput.getContent());
log.debug("Exiting");
}
