Can anyone help me how to implement below using jerseyclient 1.18,this is most probably related to virtual host.
curl -k -H 'Host:b' https://a
Generally i just know how to connect one ip using code like below
Client client = Client.create();
WebResource webResource2 = client.resource("https://a");
ClientResponse response2 = webResource2.accept("application/json").header("user-agent", "").get(ClientResponse.class);
if (response2.getStatus() != 200) {
throw new RuntimeException("Failed : HTTP error code : " + response2.getStatus());
}
String output2 = response2.getEntity(String.class);
System.out.println("\n============Response============");
System.out.println(output2);
Related
I am trying to connect a to Neo4j Aura instance from a .NET core 2.2 web api. I understand I need the Neo4j .Net Driver v4.0.0-alpha01, but I do not seem to be able to connect. There aren't very many examples out there as this driver is new and so is Aura.
I keep getting:
Failed after retried for 6 times in 30000 ms. Make sure that your database is online and retry again.
I configure the driver as such
public void ConfigureServices(IServiceCollection services)
{
string uri = "neo4j://1234567.databases.neo4j.io:7687";//not actual subdomain
string username = "neo4j";
string password = "seeeeeeecret";//not actual password
services.AddCors();
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
services.AddSingleton(GraphDatabase.Driver(uri, AuthTokens.Basic(username, password)));
}
and in my test controller i run this
private async Task<string> Neo4JTestAsync()
{
string db = "MyDb";
string message = "TESTMESSAGE";
IAsyncSession session = _driver.AsyncSession(o => o.WithDatabase(db));
try
{
var greeting = session.WriteTransactionAsync(async tx =>
{
var result = tx.RunAsync("CREATE (a:Greeting) " +
"SET a.message = $message " +
"RETURN a.message + ', from node ' + id(a)",
new { message });
var res = await result;
return "return something eventually";
});
return await greeting;
}
catch (Exception e)
{
return e.Message; // throws "Failed after retried for 6 times in 30000 ms. Make sure that your database is online and retry again"
}
finally
{
await session.CloseAsync();
}
}
I can't get the exact error message you do - but I'm pretty sure this is due to encryption - one of the big differences between the 1.x and 4.x drivers is the default position on Encryption - which is now off by default.
So you'll want to change your initialisation to:
services.AddSingleton(GraphDatabase.Driver(uri, AuthTokens.Basic(username, password), config => config.WithEncryptionLevel(EncryptionLevel.Encrypted)));
That should get you going. Also - make sure you stick with the neo4j:// protocol, as that'll route you properly.
Have you tried bolt:// in the connection string?
string uri = "bolt://1234567.databases.neo4j.io:7687";//not actual subdomain
I'm setting up my Jenkins server, and on simple requests in the web interface, like creating a folder, a pipeline, a job, etc., I periodically get the following error:
HTTP ERROR 403
Problem accessing /job/Mgmt/createItem. Reason:
No valid crumb was included in the request
The server is using the Jenkins/Jenkins container, orchestrated by Kubernetes on a cluster on AWS created with kops. It sits behind a class ELB.
Why might I be experiencing this? I thought the crumb was to combat certain CSRF requests, but all I'm doing is using the Jenkins web interface.
Enabling proxy compatibility may help to solve this issue.
Go to Settings -> Security -> Enable proxy compatibility in CSRF Protection section
Some HTTP proxies filter out information that the default crumb issuer uses to calculate the nonce value. If an HTTP proxy sits between your browser client and your Jenkins server and you receive a 403 response when submitting a form to Jenkins, checking this option may help. Using this option makes the nonce value easier to forge.
After a couple of hours of struggling, I was able to make it work with curl:
export JENKINS_URL=http://localhost
export JENKINS_USER=user
export JENKINS_TOKEN=mytoken
export COOKIE_JAR=/tmp/cookies
JENKINS_CRUMB=$(curl --silent --cookie-jar $COOKIE_JAR $JENKINS_URL'/crumbIssuer/api/xml?xpath=concat(//crumbRequestField,":",//crumb)' -u $JENKINS_USER:$JENKINS_TOKEN)
echo $JENKINS_CRUMB
curl --cookie $COOKIE_JAR $JENKINS_URL/createItem?name=yourJob --data-binary #jenkins/config.xml -H $JENKINS_CRUMB -H "Content-Type:text/xml" -u $JENKINS_USER:$JENKINS_TOKEN -v
when calling the http://JENKINS_SERVER:JENKINS_PORT/JENKINS_PREFIX/crumbIssuer/api/json you receive a header ("Set-Cookie") to set a JSESSIONID, so you must supply it in the upcoming requests you issue,
the reason is that jenkins test for valid crumb in this manner: comparing the crumb you send in the request with a crumb it generates on the server side (using your session id),
you can see it in jenkins code: scroll down to method:
public boolean validateCrumb(ServletRequest request, String salt, String crumb)
it means you HAVE to include a session in the next requests (after fetching the crumb)!
so the curl --cookie must be used as ThiagoAlves stated in his solution
i use java so i used this next tester (HTTPClient would be prefered, but i wanted a simple java only example):
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Base64;
public class JobRunner
{
String jenkinsUser = "tester";
String jenkinsPassword = "1234"; // password or API token
String jenkinsServer = "localhost";
String jenkinsPort = "8080";
String jenkinsPrefix = "/jenkins";
String jSession = null;
String crumb = null;
HttpURLConnection connection = null;
String responseBody = "";
public void openConnection(String requestMethod, String relativeURL) throws Exception
{
// prepare the authentication string
String authenticationString = jenkinsUser + ":" + jenkinsPassword;
String encodedAuthenticationString = Base64.getEncoder().encodeToString(authenticationString.getBytes("utf-8"));
// construct the url and open a connection to it
URL url = new URL("http://" + jenkinsServer + ":" + jenkinsPort + jenkinsPrefix + relativeURL);
connection = (HttpURLConnection) url.openConnection();
// set the login info as a http header
connection.setRequestProperty("Authorization", "Basic " + encodedAuthenticationString);
// set the request method
connection.setRequestMethod(requestMethod);
}
public void readResponse() throws Exception
{
// get response body and set it in the body member
int responseCode = connection.getResponseCode();
switch (responseCode)
{
case 401:
System.out.println("server returned 401 response code - make sure your user/password are correct");
break;
case 404:
System.out.println("server returned 404 response code - make sure your url is correct");
break;
case 201:
case 200:
System.out.println("server returned " + responseCode + " response code");
InputStream responseBodyContent = connection.getInputStream();
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(responseBodyContent));
String currentLine;
while ((currentLine = bufferedReader.readLine()) != null)
{
responseBody = responseBody + currentLine + "\n";
}
break;
default:
System.out.println("server returned error response code: " + responseCode);
break;
}
}
public void setSessionCookie() throws Exception
{
jSession = connection.getHeaderField("Set-Cookie");
System.out.println("jSession: " + jSession);
}
public void disconnect() throws Exception
{
if(connection!=null)
{
connection.disconnect();
connection = null;
responseBody = "";
}
}
public void getCrumb() throws Exception
{
try
{
openConnection("GET", "/crumbIssuer/api/json");
readResponse();
setSessionCookie();
int crumbIndex = responseBody.indexOf("crumb\":\"");
if(crumbIndex!=-1)
{
int crumbIndexEnd = responseBody.indexOf("\",\"", crumbIndex);
crumb = responseBody.substring(crumbIndex + "crumb\":\"".length(), crumbIndexEnd);
System.out.println(crumb);
}
}
finally
{
disconnect();
}
}
public void runJob() throws Exception
{
try
{
openConnection("POST", "/job/test/build");
connection.setDoOutput(true);
connection.setRequestProperty("Cookie", jSession);
connection.setRequestProperty("Jenkins-Crumb", crumb);
readResponse();
System.out.println("Post response: " + responseBody);
}
finally
{
disconnect();
}
}
public static void main(String[] args)
{
JobRunner jobRunner = new JobRunner();
try
{
jobRunner.getCrumb();
jobRunner.runJob();
}
catch (Exception err)
{
err.printStackTrace();
}
}
}
I have xamarin.forms application for iOS and local database is created in sql server 2012 on windows 10,now i am trying to connect the localhost to the of windows to the iphone simulator.
i tried :
Connecting through IP address of the windows Pc.
Connected mac and windows under same wifi.
Disabled firewall.
none of them worked.
The code i am trying to connect is:
private string Uri = "http://192.168.0.16:62271/";//Windows Ip address:localhost port number
private string GetDishesUrl = "api/DishDetails/GetDishDetails?id=5";
try
{
var httpClient = new HttpClient();
httpClient.BaseAddress = new Uri(Uri);
var response = await httpClient.GetAsync(new Uri(Uri + GetDishesUrl));
var stringAsync = await response.Content.ReadAsStringAsync();
if (response.IsSuccessStatusCode)
{
var responseJson = stringAsync;
return JsonConvert.DeserializeObject<List<DishDetails>>(responseJson);
}
}
catch(Exception ex)
{
return null;
}
when i disabled firewall and trying to connect to mac then i am getting responseas null and also the exception also as null and in safari while giving Ip address along with GetDishesUrl getting as Bad Request-Invalid Hostname,How to acheive this local host connection?
I already placed this this but i did not get it to be worked.
I am newbie to web service. Due to requirement I have to send a file[most probably in txt format] to server through REST web service.
I am getting the exception like below.
MessageBodyWriter not found for media type=application/json, type=class gvjava.org.json.JSONObject, genericType=class gvjava.org.json.JSONObject.
Here is my web service method.
#Path("{c}")
#POST
#Produces(MediaType.APPLICATION_JSON)
#Consumes(MediaType.APPLICATION_JSON)
public String convert(#PathParam("c") JSONObject object) throws JSONException {
String result = "";
return "<ctofservice>" + "<ctofoutput>" + result + "</ctofoutput>" + "</ctofservice>";
}
Now client code is like below
JSONObject data_file = new JSONObject();
data_file.put("file_name", uploadFile.getName());
data_file.put("description", "Something about my file....");
data_file.put("file", uploadFile);
Client client = ClientBuilder.newClient();
webTarget = client.target(uploadURL).path("ctofservice").path("convert");
Response value = webTarget.request(MediaType.APPLICATION_JSON_TYPE)
.post(Entity.entity(data_file,MediaType.APPLICATION_JSON_TYPE),
Response.class);
Please help me with this.
Thanks in advance.
------------------------------------------------------------------------
As suggested by peeskillet in the answer below, I tried to send file through multipart. Still I am facing exception of no octet stream found.
Below is my rest api
#Path("{c}")
#POST
#Consumes(MediaType.MULTIPART_FORM_DATA)
public Response convert(#FormDataParam("file") FormDataContentDisposition file) {
String result = "";
Some operation with attached parameter ...
return Response.status(200).entity(result).build();
}
Here is my test client
FormDataMultiPart multiPart = new FormDataMultiPart();
multiPart.setMediaType(MediaType.MULTIPART_FORM_DATA_TYPE);
FileDataBodyPart fileDataBodyPart = new FileDataBodyPart("file",
uploadFile,MediaType.APPLICATION_OCTET_STREAM_TYPE);
multiPart.bodyPart(fileDataBodyPart);
Client client = Client.create();
WebResource webResource = client
.resource(uploadURL).path("ctofservice");
ClientResponse response = webResource.accept("application/json")
.post(ClientResponse.class,multiPart);
if (response.getStatus() != 200) {
throw new RuntimeException("Failed : HTTP error code : "
+ response.getStatus());
}
And I am getting the exception below
I am not able to understand why I need to send data as MediaType.APPLICATION_OCTET_STREAM_TYPE ? As I have used multipart as media type before ...
I appreciate your help..
Without needing to configuring anything else, the easiest way to get around this is to just use a String instead of the actual JSONObject (i.e. just passing toString())
.post(Entity.json(data_file.toString()))
The problem with using JSONObject is that there is no provider that knows how to handle the conversion. You will have the same problem on the server side, where there is no provider to handle the conversion to JSONObject. So you will need to just do
#POST
public Response post(String json) {
JSONObject jsonObject = new JSONObject(json);
}
If you really want to be able to just use JSONObject without needing to use a String, then you should check out this post.
As an aside, this is not valid JSON (it's XML)
"<ctofservice>" + "<ctofoutput>" + result + "</ctofoutput>" + "</ctofservice>"
but you are saying that the endpoint returns JSON
I have set up a Service bus 1.1 for windows server and trying to access it using the following code.
var sbUriList = new List<Uri>() { new UriBuilder { Scheme = "sb", Host = ServerFQDN, Path = ServiceNamespace }.Uri };
var httpsUriList = new List<Uri>() { new UriBuilder { Scheme = "https", Host = ServerFQDN, Path = ServiceNamespace, Port = HttpPort }.Uri };
NetworkCredential credential = new NetworkCredential("<User Name>", "<Password>", "<Domain>");
ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback((s, cert, chain, ssl) => { return true; });
TokenProvider tokenProvider = TokenProvider.CreateOAuthTokenProvider(httpsUriList, credential);
messageFactory = MessagingFactory.Create(sbUriList, tokenProvider);
ServiceBusConnectionStringBuilder connBuilder = new ServiceBusConnectionStringBuilder();
connBuilder.ManagementPort = HttpPort;
connBuilder.RuntimePort = TcpPort;
connBuilder.Endpoints.Add(new UriBuilder() { Scheme = "sb", Host = ServerFQDN, Path = ServiceNamespace }.Uri);
connBuilder.StsEndpoints.Add(new UriBuilder() { Scheme = "https", Host = ServerFQDN, Port = HttpPort, Path = ServiceNamespace }.Uri);
namespaceManager = NamespaceManager.CreateFromConnectionString(connBuilder.ToString());
if (!namespaceManager.QueueExists(queuename))
{
namespaceManager.CreateQueue(queuename);
}
this works fine if i run my code from a console application, but however if I put this in a windows service and run it under either a Local service or Local System the code throws the following exception while trying to check if the queue exists in the following line namespaceManager.QueueExists(queuename).
Unexpected exception : System.UnauthorizedAccessException: The remote server returned an error: (401) Unauthorized. Manage claim is required for this operation..TrackingId:5be1365e-b4ae-4555-b81b-dcbef96be9d0_GIE11LT32PD622,TimeStamp:4/19/2015 3:51:28 PM ---> System.Net.WebException: The remote server returned an error: (401) Unauthorized.
at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
at Microsoft.ServiceBus.Messaging.ServiceBusResourceOperations.GetAsyncResult`1.<GetAsyncSteps>b__2d(GetAsyncResult`1 thisPtr, IAsyncResult r)
at Microsoft.ServiceBus.Messaging.IteratorAsyncResult`1.StepCallback(IAsyncResult result)
--- End of inner exception stack trace ---
Can someone please help me understand what I am doing wrong?
Finally found the issue in my code, thought i'll share it in case anyone else has the same issue.
my issue was that in the namespace I had not set the token as below:
namespaceManager.Settings.TokenProvider = tokenProvider;
as a result of which it was using the wrong token for connection and hence the error.