Basic information:
I am trying to get a Java application to connect to a target via SOCKS Proxy. I found this on finding out how to configure proxy settings, which is important, as I cannot change the source code to configure Proxy usage. However, the application did not connect via the proxy.
Details
I am using a small custom class for testing this, which has exactly one main method and does this:
public static void main(String... strings) throws URISyntaxException, IOException {
URL url = new URI("http", null, "localhost", 9998, null, null, null).toURL();
System.out.println("opening connection to " + url.toString());
URLConnection c = url.openConnection();
System.out.println("connecting");
c.connect();
System.out.println(c.getContentLength());
System.out.println(c.getContentType());
}
Then, I start that class using java <properties> <classname>.
Properties I have tried so far (single and combined):
socksPropertyHost=localhost
socksPropertyPort=9999
http.proxySet=true
http.proxyHost=localhost
http.proxyPort=9999
https.proxySet=true
https.proxyHost=localhost
https.proxyPort=9999
proxySet=true
proxyHost=localhost
proxyPort=9999
java.net.useSystemProxies=true
Likewise, I added these on the command line, added then to my environment, set the values in jre/lib/net.properties and pout them into a comma-separated list which was then passed as -D$JAVA_OPTS in a bash script.
All of the connections were refused with
Exception in thread "main" java.net.ConnectException: Connection refused (Connection refused)
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
at sun.net.www.http.HttpClient.New(HttpClient.java:339)
at sun.net.www.http.HttpClient.New(HttpClient.java:357)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
at sandbox.Sandbox.main(Example.java:16)
Basically, the question(s) here is/are this/these:
Am I doing something wrong here? Is that a bug? Is it just my System?
Any answer would be greatly appreciated.
Please notice the line
java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
in the stack trace. You have configured your JVM to try a SOCKS5 proxy, but the proxy is not responding where the JVM tries to connect. Typically SOCKS proxies live on port 1080.
Related
I am trying to use Google cloud translate API in Java. I have signed up free trial version and enable translate API project from google cloud console. Also I have API key with me.
I referred to API usage reference created java maven project included dependency of google-cloud-translate. Its downloaded also as a dependency. In java class file I am using same code as given the link but its giving me below error.
I have not used API keys anywhere as I don't know where to use it. I think that's the problem but don't know how to pass API keys for authentication?
So I missed step "gcloud beta auth application-default login" in the link
as running it on command line doesn't work.
I have java project in eclipse and I am using "Run As"-> "Java application" to run it.
Exception in thread "main" com.google.cloud.translate.TranslateException: connect timed out
at com.google.cloud.translate.spi.DefaultTranslateRpc.translate(DefaultTranslateRpc.java:63)
at com.google.cloud.translate.spi.DefaultTranslateRpc.translate(DefaultTranslateRpc.java:145)
at com.google.cloud.translate.TranslateImpl$4.call(TranslateImpl.java:113)
at com.google.cloud.translate.TranslateImpl$4.call(TranslateImpl.java:110)
at com.google.cloud.RetryHelper.doRetry(RetryHelper.java:179)
at com.google.cloud.RetryHelper.runWithRetries(RetryHelper.java:244)
at com.google.cloud.translate.TranslateImpl.translate(TranslateImpl.java:110)
at com.google.cloud.translate.TranslateImpl.translate(TranslateImpl.java:124)
at com.translate.main.Translator.main(Translator.java:83)
Caused by: java.net.SocketTimeoutException: connect timed out
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:345)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:656)
at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:275)
at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:371)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1104)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:998)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:153)
at com.google.api.client.http.javanet.NetHttpRequest.execute(NetHttpRequest.java:93)
at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:972)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:419)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:352)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:469)
at com.google.cloud.translate.spi.DefaultTranslateRpc.translate(DefaultTranslateRpc.java:125)
... 7 more
Couple of things that helped me out:
Used my api key as below:
Translate translate = TranslateOptions.newBuilder().
setApiKey((String)PropertyLoader.prop.get("GOOGLE_API_KEY")).
build().getService();
I was running the code behind corporate proxy(silly me). I added below lines(a static initializer) to my java code and bingo !!!
static {
System.setProperty("http.proxyHost", HTTP_PROXY_HOST);
System.setProperty("http.proxyPort", HTTP_PROXY_PORT);
System.setProperty("https.proxyHost", HTTPS_PROXY_HOST);
System.setProperty("https.proxyPort", HTTPS_PROXY_PORT);
}
where HTTP_PROXY_HOST and others are defined constants for my company...
I'm trying to create a simple web application from the todo tutorial.
As I'm behind a corporate proxy, I used the following common java system properties :
-Dhttp.proxyHost=myproxy Dhttp.proxyPort=3128
-Dhttps.proxyHost=myproxy -Dhttps.proxyPort=3128
I also try the following parameter:
-Djava.net.useSystemProxies=true
I still have a client exception
java.lang.IllegalStateException: Http client execution failed.
at com.microsoft.azure.documentdb.GatewayProxy.performPostRequest(GatewayProxy.java:350)
at com.microsoft.azure.documentdb.GatewayProxy.doSQLQuery(GatewayProxy.java:135)
at com.microsoft.azure.documentdb.DocumentClient.doQuery(DocumentClient.java:2013)
(...)
Caused by: java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:625)
I would like to know if the azure documentdb sdk enable this proxy settings ? Maybe there is another way to set https proxy for this SDK ?
Following pull request merge, if you want to use a proxy you need to get a release version greater than 1.0.1.
As the release is not available at this moment, you could build github source and use the sdk snapshot version.
Then you just need to setup your proxy through configuration:
-Dhttp.proxyHost=myproxy Dhttp.proxyPort=3128
-Dhttps.proxyHost=myproxy -Dhttps.proxyPort=3128
I am trying to do simple ping operation using java code , i know that java does not support icmp so i just made a simple code that uses port 7 to send a request and wait for echo response
Socket t = new Socket("127.0.0.1", 7);
DataInputStream dis = new DataInputStream(t.getInputStream());
PrintStream ps = new PrintStream(t.getOutputStream());
ps.println("Hello");
String str = dis.readUTF();
if (str.equals("Hello"))
System.out.println("Alive!");
else
System.out.println("Dead");
t.close();
but this gives me
Exception in thread "main" java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at java.net.Socket.<init>(Socket.java:425)
at java.net.Socket.<init>(Socket.java:208)
at MobileCloud.Ping.main(Ping.java:11)
I read that i should change in the /etc/inetd.conf file but I have no such file .
Exception in thread "main" java.net.ConnectException: Connection refused
There is no server running on port 7 as you might verify with telnet 127.0.0.1 7. Thus the connection gets refused.
I read that i should change in the /etc/inetd.conf file but I have no such file
This depends on the system. You might need to install inetd. With your Ubuntu 14.04 this will be the inetutils-inetd package.
I'm having trouble sending https requests from eclipse.When I run this code it works fine.
public class HttpConnectionTest extends TestCase{
#Test
public void testConnection() throws HttpException, IOException {
int statusCode = new HttpClient().executeMethod(new GetMethod("http://www.google.com"));
assertTrue(statusCode == HttpStatus.SC_OK);
}
}
But when i run the same code for "https://www.google.com", I get the exception below;
java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:618)
at sun.security.ssl.SSLSocketImpl.<init>(SSLSocketImpl.java:451)
at sun.security.ssl.SSLSocketFactoryImpl.createSocket(SSLSocketFactoryImpl.java:140)
at org.apache.commons.httpclient.protocol.SSLProtocolSocketFactory.createSocket(SSLProtocolSocketFactory.java:81)
at org.apache.commons.httpclient.protocol.SSLProtocolSocketFactory.createSocket(SSLProtocolSocketFactory.java:126)
at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:706)
at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:386)
at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:170)
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:396)
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:324)
at adcWeb.HttpConnectionTest.testConnection(HttpConnectionTest.java:26)
I'm connecting to internet via proxy. My network setting are like this; I saw some people said to disable socks but eclipse doesn't allow me uncheck socks option (I'm using eclipse luna)
I believe that the proxy you configure in the eclipse settings are for plugins and IDE related stuff..
You will have to setup the proxy in your code at runtime like so :
How do I make HttpURLConnection use a proxy?
I have just downloaded cloudify2.6.2. When running the CLI of the cloudify i can not run the REST API as i get this error
Starting Non-Interactive Shell
>>> connect http://$localhost:8100
http://$localhost:8100/service/testrest Rest api error: Operation failed. org.apache.http.conn.HttpHostConnectException: Connection to http://$localhost:8100 refused
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:190)
at org.apache.http.impl.conn.ManagedClientConnectionImpl.open(ManagedClientConnectionImpl.java:294)
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:640)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:479)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:784)
at org.cloudifysource.restclient.GSRestClient.executeHttpMethod(GSRestClient.java:371)
at org.cloudifysource.restclient.GSRestClient.get(GSRestClient.java:278)
at org.cloudifysource.restclient.GSRestClient.get(GSRestClient.java:265)
at org.cloudifysource.shell.rest.RestAdminFacade.doConnect(RestAdminFacade.java:87)
at org.cloudifysource.shell.AbstractAdminFacade.connect(AbstractAdminFacade.java:55)
at org.cloudifysource.shell.commands.Connect.doExecute(Connect.java:62)
at org.cloudifysource.shell.commands.AbstractGSCommand.execute(AbstractGSCommand.java:99)
at org.apache.felix.gogo.commands.basic.AbstractCommand.execute(AbstractCommand.java:35)
at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:474)
at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:400)
at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108)
at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:183)
at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:120)
at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:89)
at org.apache.karaf.shell.console.jline.Console.run(Console.java:172)
at org.apache.karaf.shell.console.Main.run(Main.java:191)
at org.apache.karaf.shell.console.Main.run(Main.java:89)
at org.cloudifysource.shell.GigaShellMain.main(GigaShellMain.java:126)
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:127)
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180)
... 24 more
Communication Error accessing http://$localhost:8100/service/testrest. Reason: Connection to http://$localhost:8100 refused
I do not have any firewall and i also use jdk7.
I need some explanation on this.
Have you bootstrapped Cloudify on your machine by using bootstrap-localcloud? Also, it seems you're using $localhost instead of just localhost.
There are some things to note here.
First for the REST service to work it has to be up, so a bootstrapping procedure has to be done, THEN do the connect action.
In my situation it was something wrong in the setenv.sh located at ~/gigaspaces/bin/setenv.sh.
There were two declarations that was not supposed to be there.
One for the NIC and one for the LOOKUPLOCATOR, so i comment out them and i finally did bootstrap the cloud.
Cloudify Version 2.6.0
Danos