@Override
public void respondHead(Resource resource, Response response, Request request) {
// setRespondContentCommonHeaders(response, resource, Response.Status.SC_NO_CONTENT,
// request.getAuthorization());
setRespondContentCommonHeaders(
response, resource, Response.Status.SC_OK, request.getAuthorization());
if (!(resource instanceof GetableResource)) {
return;
}
GetableResource gr = (GetableResource) resource;
Long contentLength = gr.getContentLength();
if (contentLength != null) {
response.setContentLengthHeader(contentLength);
} else {
log.trace("No content length is available for HEAD request");
}
String acc = request.getAcceptHeader();
String ct = gr.getContentType(acc);
if (ct != null) {
ct = pickBestContentType(ct);
if (ct != null) {
response.setContentTypeHeader(ct);
}
}
}
@Override
public void processExistingResource(
HttpManager manager, Request request, Response response, Resource resource)
throws NotAuthorizedException, BadRequestException, ConflictException {
try {
org.jdom.input.SAXBuilder builder = new org.jdom.input.SAXBuilder();
// Prevent possibily of malicious clients using remote the parser to load remote resources
builder.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
org.jdom.Document doc = builder.build(request.getInputStream());
String reportName = doc.getRootElement().getName();
Report r = reports.get(reportName);
if (r == null) {
log.error("report not known: " + reportName);
throw new BadRequestException(resource);
} else {
log.info("process report: " + reportName + " with : " + r.getClass());
String xml = r.process(request.getHostHeader(), request.getAbsolutePath(), resource, doc);
if (log.isTraceEnabled()) {
log.trace("Report XML:\n" + xml);
}
response.setStatus(Response.Status.SC_MULTI_STATUS);
response.setContentTypeHeader("text/xml");
response.setEntity(new ByteArrayEntity(xml.getBytes("UTF-8")));
}
} catch (JDOMException ex) {
java.util.logging.Logger.getLogger(ReportHandler.class.getName()).log(Level.SEVERE, null, ex);
} catch (ReadingException ex) {
throw new RuntimeException(ex);
} catch (WritingException ex) {
throw new RuntimeException(ex);
} catch (IOException ex) {
throw new RuntimeException(ex);
}
}
@Override
public void respondContent(
Resource resource, Response response, Request request, Map<String, String> params)
throws NotAuthorizedException, BadRequestException, NotFoundException {
log.debug("respondContent: " + resource.getClass());
Auth auth = request.getAuthorization();
setRespondContentCommonHeaders(response, resource, auth);
if (resource instanceof GetableResource) {
GetableResource gr = (GetableResource) resource;
String acc = request.getAcceptHeader();
String ct = gr.getContentType(acc);
if (ct != null) {
ct = pickBestContentType(ct);
response.setContentTypeHeader(ct);
}
cacheControlHelper.setCacheControl(gr, response, request.getAuthorization());
Long contentLength = gr.getContentLength();
Boolean doBuffering = null;
if (resource instanceof BufferingControlResource) {
BufferingControlResource bcr = (BufferingControlResource) resource;
doBuffering = bcr.isBufferingRequired();
}
if (doBuffering == null) {
if (buffering == null || buffering == BUFFERING.whenNeeded) {
doBuffering =
(contentLength
== null); // if no content length then we buffer content to find content length
} else {
doBuffering =
(buffering
== BUFFERING
.always); // if not null or whenNeeded then buffering is explicitly enabled or
// disabled
}
}
if (!doBuffering) {
log.trace("sending content with known content length: " + contentLength);
if (contentLength != null) {
response.setContentLengthHeader(contentLength);
}
response.setEntity(new GetableResourceEntity(gr, params, ct));
} else {
BufferingGetableResourceEntity e =
new BufferingGetableResourceEntity(gr, params, ct, contentLength, getMaxMemorySize());
response.setEntity(e);
}
}
}
@Override
public void respondPartialContent(
GetableResource resource,
Response response,
Request request,
Map<String, String> params,
Range range)
throws NotAuthorizedException, BadRequestException, NotFoundException {
log.debug("respondPartialContent: " + range.getStart() + " - " + range.getFinish());
response.setStatus(Response.Status.SC_PARTIAL_CONTENT);
long st = range.getStart() == null ? 0 : range.getStart();
long fn;
Long cl = resource.getContentLength();
if (range.getFinish() == null) {
if (cl != null) {
fn = cl.longValue() - 1; // position is one less then length
} else {
log.warn(
"Couldnt calculate range end position because the resource is not reporting a content length, and no end position was requested by the client: "
+ resource.getName()
+ " - "
+ resource.getClass());
fn = -1;
}
} else {
fn = range.getFinish();
}
response.setContentRangeHeader(st, fn, cl);
long contentLength = fn - st + 1;
response.setContentLengthHeader(contentLength);
response.setDateHeader(new Date());
String etag = eTagGenerator.generateEtag(resource);
if (etag != null) {
response.setEtag(etag);
}
String acc = request.getAcceptHeader();
String ct = resource.getContentType(acc);
if (ct != null) {
response.setContentTypeHeader(ct);
}
response.setEntity(new GetableResourceEntity(resource, range, params, ct));
}
private void processCreateAndLock(
HttpManager manager, Request request, Response response, Resource parentResource, String name)
throws NotAuthorizedException {
if (parentResource instanceof LockingCollectionResource) {
log.debug("parent supports lock-null. doing createAndLock");
LockingCollectionResource lockingParent = (LockingCollectionResource) parentResource;
LockTimeout timeout = LockTimeout.parseTimeout(request);
response.setContentTypeHeader(Response.XML);
LockInfo lockInfo;
try {
lockInfo = LockInfoSaxHandler.parseLockInfo(request);
} catch (SAXException ex) {
throw new RuntimeException("Exception reading request body", ex);
} catch (IOException ex) {
throw new RuntimeException("Exception reading request body", ex);
}
// TODO: this should be refactored to return a LockResult as for existing entities
log.debug("Creating lock on unmapped resource: " + name);
LockToken tok = lockingParent.createAndLock(name, timeout, lockInfo);
if (tok == null) {
throw new RuntimeException(
"createAndLock returned null, from resource of type: "
+ lockingParent.getClass().getCanonicalName());
}
response.setStatus(Status.SC_CREATED);
response.setLockTokenHeader(
"<opaquelocktoken:" + tok.tokenId + ">"); // spec says to set response header. See 8.10.1
respondWithToken(tok, request, response);
} else {
log.debug("parent does not support lock-null, respondong method not allowed");
responseHandler.respondMethodNotImplemented(parentResource, response, request);
}
}
protected void processExistingResource(
HttpManager manager, Request request, Response response, Resource resource)
throws NotAuthorizedException {
if (handlerHelper.isNotCompatible(resource, request.getMethod()) || !isCompatible(resource)) {
responseHandler.respondMethodNotImplemented(resource, response, request);
return;
}
if (!handlerHelper.checkAuthorisation(manager, resource, request)) {
responseHandler.respondUnauthorised(resource, response, request);
return;
}
handlerHelper.checkExpects(responseHandler, request, response);
LockableResource r = (LockableResource) resource;
LockTimeout timeout = LockTimeout.parseTimeout(request);
String ifHeader = request.getIfHeader();
response.setContentTypeHeader(Response.XML);
if (ifHeader == null || ifHeader.length() == 0) {
processNewLock(manager, request, response, r, timeout);
} else {
processRefresh(manager, request, response, r, timeout, ifHeader);
}
}
@Override
public void respondNotFound(Response response, Request request) {
response.setStatus(Response.Status.SC_NOT_FOUND);
response.setContentTypeHeader("text/html");
contentGenerator.generate(null, request, response, Status.SC_NOT_FOUND);
}