I'm very new to deal with DICOM, I was trying to get some patient related dicom file(s) from a public remote server:
https://www.dicomserver.co.uk. using fo-dicom and it works fine, but when I switched to private server it shows me the error below when performing the call:
Dicom.Network.DicomAssociationRejectedException: 'Association rejected [result: Permanent; source: ServiceUser; reason: CallingAENotRecognized]'
and here's the cood snippet:
private static readonly string QRServerHost = "ServerIP";
private static readonly int QRServerPort = PortNumber;
private static readonly string QRServerAET = "ServerAET"
private static readonly string AET = "Test";
var client = new DicomClient(QRServerHost, QRServerPort, false, AET, QRServerAET);
client.NegotiateAsyncOps();
The exception:
Dicom.Network.DicomAssociationRejectedException: 'Association rejected [result: Permanent; source: ServiceUser; reason: CallingAENotRecognized]'
is standard DICOM Network exception. It indicates that SCP need to know the SCU in advance. This can be done by registering your application (AE Title and IP Address is common) on SCP.
Many SCP implementations do not enforce this registration. I do not know how "https://www.dicomserver.co.uk/" works; most probably, is does not need the registration in advance.
In cases where pre-registration is needed, it might be for security or financial reasons.
Related
I would like to retrieve the request used to resolve the resources I retrieve from the ResourceResolver.
I am performing integration testing using Teleporter Rule And can resolve the resource but can't find its corresponding request.
#Rule
public final TeleporterRule teleporter = TeleporterRule.forClass(getClass(), "Launchpad");
#Test
public void testPage() throws LoginException {
ResourceResolverFactory resourceResolverFactory = teleporter.getService(ResourceResolverFactory.class);
ResourceResolver resourceResolver = resourceResolverFactory.getAdministrativeResourceResolver(null);
Resource resource = resourceResolver.getResource("/content/test/en");
PageModel page = resource.adaptTo(PageModel.class);
}
I would like to be able to retrieve the request like I can with my unit tests using SlingContext.
SlingContextImpl slingContext = new SlingContextImpl();
slingContext.currentResource("/content/test/en");
slingContext.request()
I would like to retrieve the request like I can with my unit tests and properly test my sling models that inject the request.
As far as I understand teleporter tests run in the context of the OSGi container but don't directly expose requests/responses. Since there are no HTTP requests involved, there is nothing to adapt to.
I've been following this blog post to implement an embedded sasl_ssl
https://sharebigdata.wordpress.com/2018/01/21/implementing-sasl-plain/
#SpringBootTest
#RunWith(SpringRunner.class)
#TestPropertySource(properties = {
"spring.kafka.bootstrap-servers=${spring.embedded.kafka.brokers}",
"spring.kafka.consumer.group-id=notify-integration-test-group-id",
"spring.kafka.consumer.auto-offset-reset=earliest"
})
public class ListenerIntegrationTest2 {
static final String INBOUND = "inbound-topic";
static final String OUTBOUND = "outbound-topic";
static {
System.setProperty("java.security.auth.login.config", "src/test/java/configs/kafka/kafka_jaas.conf");
}
#ClassRule
public static final EmbeddedKafkaRule KAFKA = new EmbeddedKafkaRule(1, true, 1,
ListenerIntegrationTest2.INBOUND, ListenerIntegrationTest2.OUTBOUND)
.brokerProperty("listeners", "SASL_SSL://localhost:9092, PLAINTEXT://localhost:9093")
.brokerProperty("ssl.keystore.location", "src/test/java/configs/kafka/kafka.broker1.keystore.jks")
.brokerProperty("ssl.keystore.password", "pass")
.brokerProperty("ssl.key.password", "pass")
.brokerProperty("ssl.client.auth", "required")
.brokerProperty("ssl.truststore.location", "src/test/java/configs/kafka/kafka.broker1.truststore.jks")
.brokerProperty("ssl.truststore.password", "pass")
.brokerProperty("security.inter.broker.protocol", "SASL_SSL")
.brokerProperty("sasl.enabled.mechanisms", "PLAIN,SASL_SSL")
.brokerProperty("sasl.mechanism.inter.broker.protocol", "SASL_SSL");
When I use the PLAINTEXT://localhost:9093 config I get the following:
WARN org.apache.kafka.clients.NetworkClient - [Controller id=0, targetBrokerId=0] Connection to node 0 terminated during authentication. This may indicate that authentication failed due to invalid credentials.
However, when I remove it, I get org.apache.kafka.common.KafkaException: Tried to check server's port before server was started or checked for port of non-existing protocol
I've tried changing the SecurityProtocol type to autodiscover which style of broker communication it should be using (it's hardcoded to plaintext - this should probably get fixed):
if (this.kafkaPorts[i] == 0) {
this.kafkaPorts[i] = TestUtils.boundPort(server, SecurityProperties.forName(this.brokerProperties.getOrDefault("security.protocol", SecurityProtocol.PLAINTEXT).toString()); // or whatever property can give me the security protocol I should be using to communicate
}
I still get the following error: WARN org.apache.kafka.clients.NetworkClient - [Controller id=0, targetBrokerId=0] Connection to node 0 terminated during authentication. This may indicate that authentication failed due to invalid credentials.
Is there a way to correctly configure embedded kafka to be sasl_ssl enabled?
I have spring MVC application, that runs in LAN. In there client machines IP addresses are changing time to time. Therefore I want to get client machines names(Their machine name is fixed ),because I want to get client machine's details without creating log in.
Is that possible to get client machine's name?? if it's possible how??
Or is there any other way to get that user details
Edit:
codes I have tried so far
In HttpServlet
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
String hostname = request.getRemoteUser(); //this gives null
String hostname = request.getRemoteHost(); //This gives host machine name
}
Edit: reply to #Eugeny Loy
In web.xml
<init-param>
<param-name>jcifs.smb.client.username</param-name>
<param-value>username</param-value>
</init-param>
In serverlet class
String username = config.getInitParameter("username");//This gives client IP address
I found the way to get client machine's name.
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
Logger.getLogger(this.getClass()).warning("Inside Confirm Servlet");
response.setContentType("text/html");
String hostname = request.getRemoteHost(); // hostname
System.out.println("hostname"+hostname);
String computerName = null;
String remoteAddress = request.getRemoteAddr();
System.out.println("remoteAddress: " + remoteAddress);
try {
InetAddress inetAddress = InetAddress.getByName(remoteAddress);
System.out.println("inetAddress: " + inetAddress);
computerName = inetAddress.getHostName();
System.out.println("computerName: " + computerName);
if (computerName.equalsIgnoreCase("localhost")) {
computerName = java.net.InetAddress.getLocalHost().getCanonicalHostName();
}
} catch (UnknownHostException e) {
}
System.out.println("computerName: " + computerName);
}
Is that possible to get client machine's name??
You're probably referring to NetBIOS name here. If that's the case - you should use some library that implements NetBIOS/SMB/CIFS in java to do this.
if it's possible how??
Have a look on JCIFS. I won't give you the exact code snippet but this is the direction you should move to solve this.
Or is there any other way to get that user details
As far as I understand your problem, what you need is a way to identify host and you cannot rely on IP address for that.
If that's the case one of the other options would be using MAC address, but you'll probably wont be able to do this with pure java since this is more low-level protocol java normally deals with, so it will probably be less portable. This tutorial might help.
UPDATE
I come across NetBIOS/SMB/CIFS stack but I haven't worked with it in Java and JCIFS. That's why I won't give you specific code piece that will solve your issue but rather direction where you should look.
Check out NbtAddress class docs. Seems to be what you are looking for. Also check out the examples to get the idea how it can be used.
long time ASP.Net interface developer being asked to learn WCF, looking for some education on more architecture related fronts - as its not my strong suit but I'm having to deal.
In our current ASMX world we adopted a model of creating ServiceManager static classes for our interaction with web services. We're starting to migrate to WCF, attempting to follow the same model. At first I was dealing with performance problems, but I've tweaked a bit and we're running smoothly now, but I'm questioning my tactics. Here's a simplified version (removed error handling, caching, object manipulation, etc.) of what we're doing:
public static class ContentManager
{
private static StoryManagerClient _clientProxy = null;
const string _contentServiceResourceCode = "StorySvc";
// FOR CACHING
const int _getStoriesTTL = 300;
private static Dictionary<string, GetStoriesCacheItem> _getStoriesCache = new Dictionary<string, GetStoriesCacheItem>();
private static ReaderWriterLockSlim _cacheLockStories = new ReaderWriterLockSlim();
public static Story[] GetStories(string categoryGuid)
{
// OMITTED - if category is cached and not expired, return from cache
// get endpoint address from FinderClient (ResourceManagement SVC)
UrlResource ur = FinderClient.GetUrlResource(_contentServiceResourceCode);
// Get proxy
StoryManagerClient svc = GetStoryServiceClient(ur.Url);
// create request params
GetStoriesRequest request = new GetStoriesRequest{}; // SIMPLIFIED
Manifest manifest = new Manifest{}; // SIMPLIFIED
// execute GetStories at WCF service
try
{
GetStoriesResponse response = svc.GetStories(manifest, request);
}
catch (Exception)
{
if (svc.State == CommunicationState.Faulted)
{
svc.Abort();
}
throw;
}
// OMITTED - do stuff with response, cache if needed
// return....
}
internal static StoryManagerClient GetStoryServiceClient(string endpointAddress)
{
if (_clientProxy == null)
_clientProxy = new StoryManagerClient(GetServiceBinding(_contentServiceResourceCode), new EndpointAddress(endpointAddress));
return _clientProxy;
}
public static Binding GetServiceBinding(string bindingSettingName)
{
// uses Finder service to load a binding object - our alternative to definition in web.config
}
public static void PreloadContentServiceClient()
{
// get finder location
UrlResource ur = FinderClient.GetUrlResource(_contentServiceResourceCode);
// preload proxy
GetStoryServiceClient(ur.Url);
}
}
We're running smoothly now with round-trip calls completing in the 100ms range. Creating the PreloadContentServiceClient() method and adding to our global.asax got that "first call" performance down to that same level. And you might want to know we're using the DataContractSerializer, and the "Add Service Reference" method.
I've done a lot of reading on static classes, singletons, shared data contract assemblies, how to use the ChannelFactory pattern and a whole bunch of other things that I could do to our usage model...admittedly, some of its gone over my head. And, like I said, we seem to be running smoothly. I know I'm not seeing the big picture, though. Can someone tell me what I've ended up here with regards to channel pooling, proxy failures, etc. and why I should head down the ChannelFactory path? My gut says to just do it, but my head can't comprehend why...
Thanks!
ChannelFactory is typically used when you aren't using Add Service Reference - you have the contract via a shared assembly not generated via a WSDL. Add Service Reference uses ClientBase which is essentially creating the WCF channel for you behind the scenes.
When you are dealing with REST-ful services, WebChannelFactory provides a service-client like interface based off the shared assembly contract. You can't use Add Service Reference if your service only supports a REST-ful endpoint binding.
The only difference to you is preference - do you need full access the channel for custom behaviors, bindings, etc. or does Add Service Reference + SOAP supply you with enough of an interface for your needs.
I am trying to figure out how to send an email from a Flash Mobile (smartphones: blackberries, iphones, androids) app using mxml and Flash using Flash Builder 4.6. My boss told me to find out if it is possible. So far, I have been doing a lot of searching around on the internet for an answer.
I found this website: http://www.bytearray.org/?p=27, that has some classes for sending email in flash, but #1, I don't know if they work in Mobile apps, and #2, I can't find any instructions or tutorials on how to use the classes to send a simple email.
I downloaded the package from the site and imported into my project, where I am trying to send the code. But without sample code on how to simply send an email, I am not entirely sure what all do, and nor am I sure how to determine things like what port number to construct the SMTPMailer object (the SMTPMailer object is included in that package, and it takes a host string and a port number integer in it's constructor), right now I am trying 80 or 8080 for the port number, and I've tried localhost and one of our server computers, 198.162.1.109 for the host.
Anyway, I keep getting this error: Error #2044: Unhandled IOErrorEvent:. text=Error #2031: Socket Error.
Here is some of my sample code:
[Bindable]
private var mailer : SMTPMailer;
private function init() : void {
tbPass.displayAsPassword = true;
}
protected function btnClick_email(toAddress : String, fromAddress : String, pass : String) : void {
mailer = new SMTPMailer("198.168.1.109", 8080);
mailer.addEventListener(SMTPEvent.MAIL_SENT, onMailSent);
mailer.addEventListener(SMTPEvent.MAIL_ERROR, onMailError);
mailer.addEventListener(SMTPEvent.CONNECTED, onConnected);
mailer.addEventListener(SMTPEvent.DISCONNECTED, onDisconnected);
mailer.connect("hotmail.com", 8080);
mailer.authenticate(toAddress, pass);
mailer.sendHTMLMail(fromAddress, toAddress, "Subect", "Message");
}
private function onMailSent() : void {
lblEmailResult.text = "Sent Mail";
}
private function onMailError() : void {
lblEmailResult.text = "Error";
}
private function onConnected() : void {
lblEmailResult.text = "Connected";
}
private function onDisconnected() : void {
lblEmailResult.text = "Disconnected";
}
I would suggest using a back-end service to send emails, it is same as connecting to a SMTP mail server but it is more flexible.
That being said, it should work, the error you are getting is related to your host IP, are you sure you have SMTP server running on "198.168.1.109:8080"?
First check if you can send mails from it before trying to do it trough Flex, if that is OK, then you should double check socket policy files:
http://www.adobe.com/devnet/flashplayer/articles/socket_policy_files.html
Hope that helps
Can't you just use navigateToURL() for this?
Ie:
var request:URLRequest("mailto:someone#somewhere.com");
navigateToURL(request);
That's all - 2 lines :)
I've accomplished this in a commercial app I worked on. We used a native extension found in distriqt's set of tools. Google them. The full suite of tools is cheap, though if you have any issues, do not expect a quick reply. Their message tool is what you are looking for, and it is easy to use.