private EntityTag etag(DavResource resource) {
if (resource == null) return null;
String etag = resource.getETag();
if (etag == null) return null;
// resource etags have doublequotes wrapped around them
if (etag.startsWith("\"")) etag = etag.substring(1, etag.length() - 1);
return new EntityTag(etag);
}
private void ifModifiedSince(DavRequest request, DavResponse response, DavResource resource)
throws DavException, IOException {
if (resource == null) return;
long mod = resource.getModificationTime();
if (mod == -1) return;
mod = mod / 1000 * 1000;
long since = request.getDateHeader("If-Modified-Since");
if (since == -1) return;
if (mod > since) return;
throw new NotModifiedException();
}
private void ifUnmodifiedSince(DavRequest request, DavResponse response, DavResource resource)
throws DavException, IOException {
if (resource == null) return;
long mod = resource.getModificationTime();
if (mod == -1) return;
mod = mod / 1000 * 1000;
long since = request.getDateHeader("If-Unmodified-Since");
if (since == -1) return;
if (mod <= since) return;
throw new PreconditionFailedException("If-Unmodified-Since disallows conditional request");
}
/**
* Hands the request off to a provider method for handling. The provider is created by calling
* {@link #createProvider(DavResource)}. The specific provider method is chosen by examining the
* request method.
*/
protected void process(DavRequest request, DavResponse response, DavResource resource)
throws IOException, DavException {
DavProvider provider = createProvider(resource);
if (request.getMethod().equals("OPTIONS")) options(request, response, resource);
else if (request.getMethod().equals("GET")) provider.get(request, response, resource);
else if (request.getMethod().equals("HEAD")) provider.head(request, response, resource);
else if (request.getMethod().equals("PROPFIND")) provider.propfind(request, response, resource);
else if (request.getMethod().equals("PROPPATCH"))
provider.proppatch(request, response, resource);
else if (request.getMethod().equals("DELETE")) provider.delete(request, response, resource);
else if (request.getMethod().equals("COPY")) provider.copy(request, response, resource);
else if (request.getMethod().equals("MOVE")) provider.move(request, response, resource);
else if (request.getMethod().equals("REPORT")) provider.report(request, response, resource);
else if (request.getMethod().equals("MKTICKET")) provider.mkticket(request, response, resource);
else if (request.getMethod().equals("DELTICKET"))
provider.delticket(request, response, resource);
else if (request.getMethod().equals("ACL")) provider.acl(request, response, resource);
else {
if (resource.isCollection()) {
if (request.getMethod().equals("MKCOL"))
provider.mkcol(request, response, (DavCollection) resource);
else if (request.getMethod().equals("MKCALENDAR"))
provider.mkcalendar(request, response, (DavCollection) resource);
else
throw new MethodNotAllowedException(
request.getMethod() + " not allowed for a collection");
} else {
if (request.getMethod().equals("PUT"))
provider.put(request, response, (DavContent) resource);
else
throw new MethodNotAllowedException(
request.getMethod() + " not allowed for a non-collection resource");
}
}
}
private void options(DavRequest request, DavResponse response, DavResource resource) {
response.setStatus(200);
response.addHeader("Allow", resource.getSupportedMethods());
response.addHeader("DAV", resource.getComplianceClass());
}