Preemptive authentication with JAX-RS? - java

I'm a long time reader and first time user so please go easy on me.
I'm attempting to use preemptive auth with javax.ws.rs.client.Client. I've got this working with HTTPClient, but I can't figure out how to accomplish the same with a JAX authenticator.
HttpClient client = new HttpClient();
client.getParams().setAuthenticationPreemptive(true);
Credentials creds = new UsernamePasswordCredentials("user", "pass");
client.getState().setCredentials(AuthScope.ANY, creds);
I do have basic auth working with JAX. Here's my client:
public HttpsConnection() {
// configure ssl
final SslConfigurator sslConfig = SslConfigurator.newInstance().keyStoreFile(keyStore).keyPassword("pass");
final HostnameVerifier hostnameVerifier = new HostnameVerifier() {
public boolean verify(String hostname, SSLSession session) {
return true;
}
};
final SSLContext sslContext = sslConfig.createSSLContext();
// configure client
final Client client = ClientBuilder.newBuilder().sslContext(sslContext).hostnameVerifier(hostnameVerifier)
.register(new Authenticator(username, password)).register(JacksonFeature.class)
.register(new JsonObjectMapper()).build();
WebTarget target = client.target(base_url);
}
And here's my auth filter:
public class Authenticator implements ClientRequestFilter {
private final String user;
private final String password;
public Authenticator(String user, String password) {
this.user = user;
this.password = password;
}
public void filter(ClientRequestContext requestContext) throws IOException {
MultivaluedMap<String, Object> headers = requestContext.getHeaders();
final String basicAuthentication = getBasicAuthentication();
headers.add("Authorization", basicAuthentication);
}
private String getBasicAuthentication() {
String token = this.user + ":" + this.password;
try {
return "Basic " + DatatypeConverter.printBase64Binary(token.getBytes("UTF-8"));
} catch (UnsupportedEncodingException ex) {
throw new IllegalStateException("Cannot encode with UTF-8", ex);
}
}
}
Can anyone give me an example using UsernamePasswordCredentials with preemptive auth like I'm doing with HTTPClient above? I must be Googling for all of the wrong things because I just can't find an example.
And if my post totally sucks then please let me know before it gets closed by an OP =)

Related

How can I use Socks5 proxy in Okhttp to start http request

How can I use Socks5 proxy in Okhttp to start http request ?
My code:
Proxy proxy = new Proxy(Proxy.Type.SOCKS, InetSocketAddress.createUnresolved(
"socks5host", 80));
OkHttpClient client = new OkHttpClient.Builder()
.proxy(proxy).authenticator(new Authenticator() {
#Override
public Request authenticate(Route route, Response response) throws IOException {
if (HttpUtils.responseCount(response) >= 3) {
return null;
}
String credential = Credentials.basic("user", "psw");
if (credential.equals(response.request().header("Authorization"))) {
return null; // If we already failed with these credentials, don't retry.
}
return response.request().newBuilder().header("Authorization", credential).build();
}
}).build();
Request request = new Request.Builder().url("http://google.com").get().build();
Response response = client.newCall(request).execute(); <--- **Here, always throw java.net.UnknownHostException: Host is unresolved: google.com**
System.out.println(response.body().string());
How to avoid UnknownHostException?
Any example ?
Thanks!

I found a solution: When create a OkHttpClient.Builder(), set a new socketFactory instead of set proxy, and return a sock5 proxy inside socketFactory createSocket.

I think it's the easiest working soulution. But it seems to me that it can be not 100% safe. I took this code from this code from here and modified it because my proxy's RequestorType is SERVER.
Actually, java has a strange api for proxies, you should to set auth for proxy through system env ( you can see it from the same link)
final int proxyPort = 1080; //your proxy port
final String proxyHost = "your proxy host";
final String username = "proxy username";
final String password = "proxy password";
InetSocketAddress proxyAddr = new InetSocketAddress(proxyHost, proxyPort);
Proxy proxy = new Proxy(Proxy.Type.SOCKS, proxyAddr);
Authenticator.setDefault(new Authenticator() {
#Override
protected PasswordAuthentication getPasswordAuthentication() {
if (getRequestingHost().equalsIgnoreCase(proxyHost)) {
if (proxyPort == getRequestingPort()) {
return new PasswordAuthentication(username, password.toCharArray());
}
}
return null;
}
});
OkHttpClient client = new OkHttpClient.Builder()
.proxy(proxy)
.build();

for rest easy https calls, how to accept all certs

i am trying to call the REST service using jboss rest easy in the following way
public ETTestCasePackage getPackageById(String packageId) throws PackageNotFound {
ClientRequest req = new ClientRequest("https://facebook/api");
req.header("Authorization", "Basic " + EztrackerConstants.base64AuthenticationValue);
req.pathParameter("id", packageId);
ETTestCasePackage etPackage = null;
try {
logger.info("invoking "+req.getUri());
//ProxyFactory.create
ClientResponse<ETTestCasePackage> res = req.get(ETTestCasePackage.class);
etPackage = res.getEntity();
} catch (Exception e) {
logger.debug("Not able to retrieve details for testcase package having id = " + packageId, e);
throw new PackageNotFound("Package with id " + packageId + " not found", e);
}
return etPackage;
}
but the above code obviously throw "peer not authenticated";
javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated
at sun.security.ssl.SSLSessionImpl.getPeerCertificates(Unknown Source)
at org.apache.http.conn.ssl.AbstractVerifier.verify(AbstractVerifier.java:126)
at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:437)
at
I can add the respective cert to my local java security jks to solve this.
but i may run this so many machines, so cannot do that to all machines. so i want to make my http client accept all request by overridding the http checks.
but for rest easy httprequest, i am not able to find a way to do this. would some one help me in doing for this rest easy.
Thanks in Advance,
syam.
I have tried this piece of code calling the actual code for ignoring but still didn't override the default settings. any idea for to make it work for this rest easy client.
private void test(){
TrustManager[] trustAllCerts = new TrustManager[]{
new X509TrustManager() {
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return null;
}
public void checkClientTrusted(
java.security.cert.X509Certificate[] certs, String authType) {
}
public void checkServerTrusted(
java.security.cert.X509Certificate[] certs, String authType) {
}
}
};
// Install the all-trusting trust manager
try {
SSLContext sc = SSLContext.getInstance("SSL");
sc.init(null, trustAllCerts, new java.security.SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
} catch (Exception e) {
}
}
static {
//for localhost testing only
javax.net.ssl.HttpsURLConnection.setDefaultHostnameVerifier(
new javax.net.ssl.HostnameVerifier(){
public boolean verify(String hostname,
javax.net.ssl.SSLSession sslSession) {
return true;
}
});
}
}

Use signed certs as a plan A. As a plan B, when targeting a staging version of another system that you do not control for example, you can use the following solution.
For Resteasy 3, you need to provide your own all-trusting Httpclient to the client instance.
Of course you should never use that in production, so make sure not to hardoce it.
Normally (using jax-rs 2.0) you'd initialize a client like this:
javax.ws.rs.client.Client client = javax.ws.rs.client.ClientBuilder.newClient();
For all trusting client, replace it as follows:
Client client = null;
if (config.trustAllCertificates) {
log.warn("Trusting all certificates. Do not use in production mode!");
ApacheHttpClient4Engine engine = new ApacheHttpClient4Engine(createAllTrustingClient());
client = new ResteasyClientBuilder().httpEngine(engine).build();
}
else {
client = ClientBuilder.newClient();
}
The createAllTrustingClient() would look like this:
private DefaultHttpClient createAllTrustingClient() throws GeneralSecurityException {
SchemeRegistry registry = new SchemeRegistry();
registry.register(new Scheme("http", 80, PlainSocketFactory.getSocketFactory()));
TrustStrategy trustStrategy = new TrustStrategy() {
public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
return true;
}
};
SSLSocketFactory factory = new SSLSocketFactory(trustStrategy, SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER );
registry.register(new Scheme("https", 443, factory));
ThreadSafeClientConnManager mgr = new ThreadSafeClientConnManager(registry);
mgr.setMaxTotal(1000);
mgr.setDefaultMaxPerRoute(1000);
DefaultHttpClient client = new DefaultHttpClient(mgr, new DefaultHttpClient().getParams());
return client;
}
Just in case you have trouble figuring out the package names of the classes, here are the relevant imports:
import org.apache.http.conn.scheme.PlainSocketFactory;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager;
import org.jboss.resteasy.client.jaxrs.ResteasyClientBuilder;
import org.jboss.resteasy.client.jaxrs.engines.ApacheHttpClient4Engine;
For reference:
https://docs.jboss.org/resteasy/docs/3.0-beta-3/userguide/html/RESTEasy_Client_Framework.html#transport_layer

The easiest method is to get a proper certificate, with a correct DN and signed by a public CA, on each machine on which you are deploying the service. It's bureaucratic and annoying and probably costs real money, but it is definitely easiest overall.
Otherwise, you have to configure the clients to have a verifier that doesn't actually verify. That's dangerous, since anyone at all (including random hackers, organised criminals and dodgy government agencies) can make a self-signed certificate and there's no practical way to detect that they have done so. Except by going through and distributing to every client the entire list of server certificates that will ever be used (allowing the verifier to do its check using the club doorman technique: “if you're not on the list, you're not coming in”).
The verifier is technically going to be some kind of instance of X509TrustManager.

To add up on Arnelism's answer: if you are using httpclient-4.2.6.jar (which is a dependency for resteasy-jaxrs-3.0.10.Final.jar), you will find that ThreadSafeClientConnManager is #Deprecated. You can modify it to BasicClientConnectionManager or PoolingClientConnectionManager instead:
private static DefaultHttpClient createAllTrustingClient()
throws GeneralSecurityException {
SchemeRegistry registry = new SchemeRegistry();
registry.register(
new Scheme("http", 80, PlainSocketFactory.getSocketFactory())
);
TrustStrategy trustStrategy = new TrustStrategy() {
#Override
public boolean isTrusted(java.security.cert.X509Certificate[] arg0,
String arg1) throws java.security.cert.CertificateException {
return true;
}
};
SSLSocketFactory factory = new SSLSocketFactory(
trustStrategy,
SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER
);
registry.register(new Scheme("https", 443, factory));
BasicClientConnectionManager mgr = new BasicClientConnectionManager(registry);
DefaultHttpClient client =
new DefaultHttpClient(mgr, new DefaultHttpClient().getParams());
return client;
}

It's necessary to hack the ApacheHttpClient4Executor, the code below is work with HTTPS and will provide a ClientRequest:
UriBuilder uri = UriBuilder.fromUri(request.endpoint() + request.path());
System.out.println(request.endpoint() + request.path());
class ApacheHttpClient4Executor2 extends ApacheHttpClient4Executor {
}
ApacheHttpClient4Executor2 executor = new ApacheHttpClient4Executor2();
Scheme http = new Scheme("http", 80, PlainSocketFactory.getSocketFactory());
TrustStrategy trustStrategy = new TrustStrategy() {
#Override
public boolean isTrusted(java.security.cert.X509Certificate[] chain, String authType)
throws CertificateException {
return true;
}
};
SSLSocketFactory factory = null;
try {
factory = new SSLSocketFactory(trustStrategy, SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
} catch (KeyManagementException | UnrecoverableKeyException | NoSuchAlgorithmException | KeyStoreException e1) {
e1.printStackTrace();
}
Scheme https = new Scheme("https", 443, factory);
executor.getHttpClient().getConnectionManager().getSchemeRegistry().register(http);
executor.getHttpClient().getConnectionManager().getSchemeRegistry().register(https);
ClientRequest client = new ClientRequest(uri, executor, providerFactory);

HTTP Get failing for HTTPS with javax.net.ssl.SSLPeerUnverifiedException

I have been using this infrastructure from past couple of months and it was working fine. I used to hit Google with https and get the result. Suddenly, I started getting SSLPeerVerifiedException for HTTPS URLs. I don't think anything changed. Can anyone point to the reason and resolution?
Various Versions:
Apache-HttpComponents-HttpCore = 4.1;
Apache-HttpComponents-HttpClient = 4.1.1;
JDK = 1.6_64;
Code Snippet:
public void execute(HttpContext httpContext, HttpUriRequest request, HttpHost proxy,
Credentials proxyCredentials) throws IOException {
HttpClient httpClient = getHttpClient(proxy, proxyCredentials, true,
configuration.getHttpConnectionTimeout(), configuration.getHttpSocketTimeout());
httpClient.execute(request, httpContext);
}
/**
* Default constructor
*/
public HttpClientUtil() throws IOException {
/*
* A TrustManager which trusts every server certificates.
*/
TrustManager tm = new X509TrustManager() {
#Override
public X509Certificate[] getAcceptedIssuers() {
return null;
}
#Override
public void checkServerTrusted(X509Certificate[] chain, String authType)
throws CertificateException { }
#Override
public void checkClientTrusted(X509Certificate[] chain, String authType)
throws CertificateException { }
};
try {
SSLContext context = SSLContext.getInstance("TLS");
context.init(new KeyManager[0], new TrustManager[]{tm}, new SecureRandom());
connectionManager = new ThreadSafeClientConnManager();
connectionManager.setMaxTotal(Constant.HTTP_CONNECTION_POOL_MAX_TOTAL_CONNECTIONS);
connectionManager.setDefaultMaxPerRoute(Constant.HTTP_CONNECTION_POOL_DEFAULT_MAX_CONNECTIONS_PER_ROUTE);
connectionManager.getSchemeRegistry().register(new Scheme(Constant.PROTOCOL_HTTPS, Constant.HTTPS_DEFAULT_PORT, new SSLSocketFactory(context)));
} catch (Exception e) {
throw new IOException(e);
}
}
private HttpClient getHttpClient(HttpHost proxy, Credentials proxyCredentials,
boolean followRedirects, int connectionTimeout, int soTimeout) {
DefaultHttpClient client = new DefaultHttpClient(connectionManager);
client.addRequestInterceptor(requestAcceptEncoding);
client.addResponseInterceptor(httpResponseMaskInterceptor);
client.addResponseInterceptor(responseContentEncoding);
HttpParams params = client.getParams();
if (proxy != null) {
params.setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);
if (proxyCredentials != null) {
client.getCredentialsProvider().setCredentials(
new AuthScope(proxy.getHostName(), proxy.getPort()), proxyCredentials);
}
}
HttpProtocolParams.setUserAgent(params, configuration.getUserAgent());
HttpConnectionParams.setConnectionTimeout(params, connectionTimeout);
HttpConnectionParams.setSoTimeout(params, soTimeout);
HttpClientParams.setRedirecting(params, followRedirects);
if (followRedirects) {
client.setRedirectStrategy(redirectStrategy);
}
return client;
}
Stack trace:
Caused by: javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated
at com.sun.net.ssl.internal.ssl.SSLSessionImpl.getPeerCertificates(SSLSessionImpl.java:352)
at org.apache.http.conn.ssl.AbstractVerifier.verify(AbstractVerifier.java:128)
at org.apache.http.conn.ssl.SSLSocketFactory.createLayeredSocket(SSLSocketFactory.java:446)
at org.apache.http.impl.conn.DefaultClientConnectionOperator.updateSecureConnection(DefaultClientConnectionOperator.java:200)
at org.apache.http.impl.conn.AbstractPoolEntry.layerProtocol(AbstractPoolEntry.java:277)
at org.apache.http.impl.conn.AbstractPooledConnAdapter.layerProtocol(AbstractPooledConnAdapter.java:142)
at org.apache.http.impl.client.DefaultRequestDirector.establishRoute(DefaultRequestDirector.java:758)
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:565)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:415)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
at com.amazon.mobius.httpproxy.util.HttpClientUtil.execute(HttpClientUtil.java:390)
at com.amazon.mobius.httpproxy.ec2.RequestExecutor.executeViaEC2(RequestExecutor.java:267)
... 45 more
Any help would be appreciated.
Thanks,

Java SSLException: hostname in certificate didn't match

I have been using the following code to connect to one of google's service. This code worked fine on my local machine :
HttpClient client=new DefaultHttpClient();
HttpPost post = new HttpPost("https://www.google.com/accounts/ClientLogin");
post.setEntity(new UrlEncodedFormEntity(myData));
HttpResponse response = client.execute(post);
I put this code in a production environment, which had blocked Google.com. On request, they allowed communication with Google server by allowing me to accessing an IP : 74.125.236.52 - which is one of Google's IPs. I edited my hosts file to add this entry too.
Still I could not access the URL, which I wonder why. So I replaced the above code with :
HttpPost post = new HttpPost("https://74.125.236.52/accounts/ClientLogin");
Now I get an error like this :
javax.net.ssl.SSLException: hostname in certificate didn't match:
<74.125.236.52> != <www.google.com>
I guess this is because Google has multiple IPs. I cant ask the network admin to allow me access to all those IPs - I may not even get this entire list.
What should I do now ? Is there a workaround at Java level ? Or is it totally in hands of the network guy ?

You can also try to set a HostnameVerifier as described here. This worked for me to avoid this error.
// Do not do this in production!!!
HostnameVerifier hostnameVerifier = org.apache.http.conn.ssl.SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER;
DefaultHttpClient client = new DefaultHttpClient();
SchemeRegistry registry = new SchemeRegistry();
SSLSocketFactory socketFactory = SSLSocketFactory.getSocketFactory();
socketFactory.setHostnameVerifier((X509HostnameVerifier) hostnameVerifier);
registry.register(new Scheme("https", socketFactory, 443));
SingleClientConnManager mgr = new SingleClientConnManager(client.getParams(), registry);
DefaultHttpClient httpClient = new DefaultHttpClient(mgr, client.getParams());
// Set verifier
HttpsURLConnection.setDefaultHostnameVerifier(hostnameVerifier);
// Example send http request
final String url = "https://encrypted.google.com/";
HttpPost httpPost = new HttpPost(url);
HttpResponse response = httpClient.execute(httpPost);

The certificate verification process will always verify the DNS name of the certificate presented by the server, with the hostname of the server in the URL used by the client.
The following code
HttpPost post = new HttpPost("https://74.125.236.52/accounts/ClientLogin");
will result in the certificate verification process verifying whether the common name of the certificate issued by the server, i.e. www.google.com matches the hostname i.e. 74.125.236.52. Obviously, this is bound to result in failure (you could have verified this by browsing to the URL https://74.125.236.52/accounts/ClientLogin with a browser, and seen the resulting error yourself).
Supposedly, for the sake of security, you are hesitant to write your own TrustManager (and you musn't unless you understand how to write a secure one), you ought to look at establishing DNS records in your datacenter to ensure that all lookups to www.google.com will resolve to 74.125.236.52; this ought to be done either in your local DNS servers or in the hosts file of your OS; you might need to add entries to other domains as well. Needless to say, you will need to ensure that this is consistent with the records returned by your ISP.

I had similar problem. I was using Android's DefaultHttpClient. I have read that HttpsURLConnection can handle this kind of exception. So I created custom HostnameVerifier which uses the verifier from HttpsURLConnection. I also wrapped the implementation to custom HttpClient.
public class CustomHttpClient extends DefaultHttpClient {
public CustomHttpClient() {
super();
SSLSocketFactory socketFactory = SSLSocketFactory.getSocketFactory();
socketFactory.setHostnameVerifier(new CustomHostnameVerifier());
Scheme scheme = (new Scheme("https", socketFactory, 443));
getConnectionManager().getSchemeRegistry().register(scheme);
}
Here is the CustomHostnameVerifier class:
public class CustomHostnameVerifier implements org.apache.http.conn.ssl.X509HostnameVerifier {
#Override
public boolean verify(String host, SSLSession session) {
HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier();
return hv.verify(host, session);
}
#Override
public void verify(String host, SSLSocket ssl) throws IOException {
}
#Override
public void verify(String host, X509Certificate cert) throws SSLException {
}
#Override
public void verify(String host, String[] cns, String[] subjectAlts) throws SSLException {
}
}

A cleaner approach ( only for test environment) in httpcliet4.3.3 is as follows.
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext,SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
CloseableHttpClient httpclient = HttpClients.custom().setSSLSocketFactory(sslsf).build();

In httpclient-4.3.3.jar, there is another HttpClient to use:
public static void main (String[] args) throws Exception {
// org.apache.http.client.HttpClient client = new DefaultHttpClient();
org.apache.http.client.HttpClient client = HttpClientBuilder.create().build();
System.out.println("HttpClient = " + client.getClass().toString());
org.apache.http.client.methods.HttpPost post = new HttpPost("https://www.rideforrainbows.org/");
org.apache.http.HttpResponse response = client.execute(post);
java.io.InputStream is = response.getEntity().getContent();
java.io.BufferedReader rd = new java.io.BufferedReader(new java.io.InputStreamReader(is));
String line;
while ((line = rd.readLine()) != null) {
System.out.println(line);
}
}
This HttpClientBuilder.create().build() will return org.apache.http.impl.client.InternalHttpClient. It can handle the this hostname in certificate didn't match issue.

Thanks Vineet Reynolds. The link you provided held a lot of user comments - one of which I tried in desperation and it helped. I added this method :
// Do not do this in production!!!
HttpsURLConnection.setDefaultHostnameVerifier( new HostnameVerifier(){
public boolean verify(String string,SSLSession ssls) {
return true;
}
});
This seems fine for me now, though I know this solution is temporary. I am working with the network people to identify why my hosts file is being ignored.

The concern is we should not use ALLOW_ALL_HOSTNAME_VERIFIER.
How about I implement my own hostname verifier?
class MyHostnameVerifier implements org.apache.http.conn.ssl.X509HostnameVerifier
{
#Override
public boolean verify(String host, SSLSession session) {
String sslHost = session.getPeerHost();
System.out.println("Host=" + host);
System.out.println("SSL Host=" + sslHost);
if (host.equals(sslHost)) {
return true;
} else {
return false;
}
}
#Override
public void verify(String host, SSLSocket ssl) throws IOException {
String sslHost = ssl.getInetAddress().getHostName();
System.out.println("Host=" + host);
System.out.println("SSL Host=" + sslHost);
if (host.equals(sslHost)) {
return;
} else {
throw new IOException("hostname in certificate didn't match: " + host + " != " + sslHost);
}
}
#Override
public void verify(String host, X509Certificate cert) throws SSLException {
throw new SSLException("Hostname verification 1 not implemented");
}
#Override
public void verify(String host, String[] cns, String[] subjectAlts) throws SSLException {
throw new SSLException("Hostname verification 2 not implemented");
}
}
Let's test against https://www.rideforrainbows.org/ which is hosted on a shared server.
public static void main (String[] args) throws Exception {
//org.apache.http.conn.ssl.SSLSocketFactory sf = org.apache.http.conn.ssl.SSLSocketFactory.getSocketFactory();
//sf.setHostnameVerifier(new MyHostnameVerifier());
//org.apache.http.conn.scheme.Scheme sch = new Scheme("https", 443, sf);
org.apache.http.client.HttpClient client = new DefaultHttpClient();
//client.getConnectionManager().getSchemeRegistry().register(sch);
org.apache.http.client.methods.HttpPost post = new HttpPost("https://www.rideforrainbows.org/");
org.apache.http.HttpResponse response = client.execute(post);
java.io.InputStream is = response.getEntity().getContent();
java.io.BufferedReader rd = new java.io.BufferedReader(new java.io.InputStreamReader(is));
String line;
while ((line = rd.readLine()) != null) {
System.out.println(line);
}
}
SSLException:
Exception in thread "main" javax.net.ssl.SSLException: hostname in certificate didn't match: www.rideforrainbows.org != stac.rt.sg OR stac.rt.sg OR www.stac.rt.sg
at org.apache.http.conn.ssl.AbstractVerifier.verify(AbstractVerifier.java:231)
...
Do with MyHostnameVerifier:
public static void main (String[] args) throws Exception {
org.apache.http.conn.ssl.SSLSocketFactory sf = org.apache.http.conn.ssl.SSLSocketFactory.getSocketFactory();
sf.setHostnameVerifier(new MyHostnameVerifier());
org.apache.http.conn.scheme.Scheme sch = new Scheme("https", 443, sf);
org.apache.http.client.HttpClient client = new DefaultHttpClient();
client.getConnectionManager().getSchemeRegistry().register(sch);
org.apache.http.client.methods.HttpPost post = new HttpPost("https://www.rideforrainbows.org/");
org.apache.http.HttpResponse response = client.execute(post);
java.io.InputStream is = response.getEntity().getContent();
java.io.BufferedReader rd = new java.io.BufferedReader(new java.io.InputStreamReader(is));
String line;
while ((line = rd.readLine()) != null) {
System.out.println(line);
}
}
Shows:
Host=www.rideforrainbows.org
SSL Host=www.rideforrainbows.org
At least I have the logic to compare (Host == SSL Host) and return true.
The above source code is working for httpclient-4.2.3.jar and httpclient-4.3.3.jar.

Updating the java version from 1.8.0_40 to 1.8.0_181 resolved the issue.

SSLConnectionSocketFactory sslConnectionSocketFactory = new SSLConnectionSocketFactory(
SSLContexts.custom().loadTrustMaterial(null, new TrustSelfSignedStrategy()).build(),
SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(sslConnectionSocketFactory).build();

Preemptive Basic authentication with Apache HttpClient 4

Is there an easier way to setup the http client for preemptive basic authentication than what described here?
In previous version (3.x) it used to be a simple method call (eg, httpClient.getParams().setAuthenticationPreemptive(true)).
The main thing I want to avoid is adding the BasicHttpContext to each method I execute.

If you are looking to force HttpClient 4 to authenticate with a single request, the following will work:
String username = ...
String password = ...
UsernamePasswordCredentials creds = new UsernamePasswordCredentials(username, password);
HttpRequest request = ...
request.addHeader(new BasicScheme().authenticate(creds, request));

It's difficult to do this without passing a context through every time, but you can probably do it by using a request interceptor. Here is some code that we use (found from their JIRA, iirc):
// Pre-emptive authentication to speed things up
BasicHttpContext localContext = new BasicHttpContext();
BasicScheme basicAuth = new BasicScheme();
localContext.setAttribute("preemptive-auth", basicAuth);
httpClient.addRequestInterceptor(new PreemptiveAuthInterceptor(), 0);
(...)
static class PreemptiveAuthInterceptor implements HttpRequestInterceptor {
public void process(final HttpRequest request, final HttpContext context) throws HttpException, IOException {
AuthState authState = (AuthState) context.getAttribute(ClientContext.TARGET_AUTH_STATE);
// If no auth scheme avaialble yet, try to initialize it
// preemptively
if (authState.getAuthScheme() == null) {
AuthScheme authScheme = (AuthScheme) context.getAttribute("preemptive-auth");
CredentialsProvider credsProvider = (CredentialsProvider) context.getAttribute(ClientContext.CREDS_PROVIDER);
HttpHost targetHost = (HttpHost) context.getAttribute(ExecutionContext.HTTP_TARGET_HOST);
if (authScheme != null) {
Credentials creds = credsProvider.getCredentials(new AuthScope(targetHost.getHostName(), targetHost.getPort()));
if (creds == null) {
throw new HttpException("No credentials for preemptive authentication");
}
authState.setAuthScheme(authScheme);
authState.setCredentials(creds);
}
}
}
}

This is the same solution as Mat's Mannion's, but you don't have to put localContext to each request. It's simpler, but it adds authentication to ALL requests. Useful, if you don't have control over individual requests, as in my case when using Apache Solr, which uses HttpClient internally.
import org.apache.http.HttpException;
import org.apache.http.HttpHost;
import org.apache.http.HttpRequest;
import org.apache.http.HttpRequestInterceptor;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.AuthState;
import org.apache.http.auth.Credentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.impl.auth.BasicScheme;
import org.apache.http.protocol.HttpContext;
import org.apache.http.protocol.HttpCoreContext;
httpClient.addRequestInterceptor(new PreemptiveAuthInterceptor(), 0);
(...)
static class PreemptiveAuthInterceptor implements HttpRequestInterceptor {
public void process(final HttpRequest request, final HttpContext context) throws HttpException, IOException {
AuthState authState = (AuthState) context.getAttribute(HttpClientContext.TARGET_AUTH_STATE);
// If no auth scheme available yet, try to initialize it
// preemptively
if (authState.getAuthScheme() == null) {
CredentialsProvider credsProvider = (CredentialsProvider) context.getAttribute(HttpClientContext.CREDS_PROVIDER);
HttpHost targetHost = (HttpHost) context.getAttribute(HttpCoreContext.HTTP_TARGET_HOST);
Credentials creds = credsProvider.getCredentials(new AuthScope(targetHost.getHostName(), targetHost.getPort()));
if (creds == null) {
throw new HttpException("No credentials for preemptive authentication");
}
authState.update(new BasicScheme(), creds);
}
}
}
Of course, you have to set the credentials provider:
httpClient.getCredentialsProvider().setCredentials(
new AuthScope(url.getHost(), url.getPort()),
new UsernamePasswordCredentials(username, password))
The AuthScope must not contain realm, as it is not known in advance.

A lot of the answers above use deprecated code. I am using Apache SOLRJ version 5.0.0.
My code consists of
private HttpSolrClient solrClient;
private void initialiseSOLRClient() {
URL solrURL = null;
try {
solrURL = new URL(urlString);
} catch (MalformedURLException e) {
LOG.error("Cannot parse the SOLR URL!!" + urlString);
throw new SystemException("Cannot parse the SOLR URL!! " + urlString, e);
}
String host = solrURL.getHost();
int port = solrURL.getPort();
AuthScope authScope = new AuthScope(host, port);
BasicTextEncryptor textEncryptor = new BasicTextEncryptor();
textEncryptor.setPassword("red bananas in the spring");
String decryptPass = textEncryptor.decrypt(pass);
UsernamePasswordCredentials creds = new UsernamePasswordCredentials(userName, decryptPass);
CredentialsProvider credsProvider = new BasicCredentialsProvider();
credsProvider.setCredentials(
authScope,
creds);
HttpClientBuilder builder = HttpClientBuilder.create();
builder.addInterceptorFirst(new PreemptiveAuthInterceptor());
builder.setDefaultCredentialsProvider(credsProvider);
CloseableHttpClient httpClient = builder.build();
solrClient = new HttpSolrClient(urlString, httpClient);
}
The PreemptiveAuthInterceptor is now as follows:-
static class PreemptiveAuthInterceptor implements HttpRequestInterceptor {
public void process(final HttpRequest request, final HttpContext context) throws HttpException, IOException {
AuthState authState = (AuthState) context.getAttribute(HttpClientContext.TARGET_AUTH_STATE);
// If no auth scheme available yet, try to initialize it
// preemptively
if (authState.getAuthScheme() == null) {
CredentialsProvider credsProvider = (CredentialsProvider)
context.getAttribute(HttpClientContext.CREDS_PROVIDER);
HttpHost targetHost = (HttpHost) context.getAttribute(HttpCoreContext.HTTP_TARGET_HOST);
AuthScope authScope = new AuthScope(targetHost.getHostName(), targetHost.getPort());
Credentials creds = credsProvider.getCredentials(authScope);
if(creds == null){
}
authState.update(new BasicScheme(), creds);
}
}
}

A little late to the party but I came accross the thread trying to solve this for proxy pre-authorization of a post request. To add to Adam's response, I found the following worked for me:
HttpPost httppost = new HttpPost(url);
UsernamePasswordCredentials creds = new UsernamePasswordCredentials(username, password);
Header bs = new BasicScheme().authenticate(creds, httppost);
httppost.addHeader("Proxy-Authorization", bs.getValue());
Thought that might be helpful for anyone else who runs into this.

I think the best way may be to just do it manually. I added the following function
Classic Java:
import javax.xml.bind.DatatypeConverter;
...
private static void addAuthHeader(HttpRequestBase http, String username, String password) throws UnsupportedEncodingException {
String encoded = DatatypeConverter.printBase64Binary((username + ":" + password).getBytes("UTF-8"));
http.addHeader("AUTHORIZATION", "Basic " + encoded);
}
HTTPRequestBase can be an instance of HttpGet or HttpPost
Android:
import android.util.Base64;
...
private static void addAuthHeader(HttpRequestBase http, String username, String password) throws UnsupportedEncodingException {
String encoded = Base64.encodeToString((username + ":" + password).getBytes("UTF-8"), Base64.NO_WRAP);
http.addHeader("AUTHORIZATION", "Basic " + encoded);
}

I'm using this code, based on my reading of the HTTPClient 4.5 docs:
HttpClientContext ctx = HttpClientContext.create()
ctx.setCredentialsProvider(new BasicCredentialsProvider())
ctx.setAuthCache(new BasicAuthCache())
UsernamePasswordCredentials creds = new UsernamePasswordCredentials(user, pass)
AuthScope authScope = new AuthScope(host, port)
ctx.getCredentialsProvider.setCredentials(authScope, credentials)
// This part makes authentication preemptive:
HttpHost targetHost = new HttpHost(host, port, scheme)
ctx.getAuthCache.put(targetHost, new BasicScheme())
...and make sure you always pass that context to HTTPClient.execute().

I don't quite get your closing comment. It's the HttpClient that has all of that machinery for doing preemptive auth, and you only have to do that once (when you construct and configure your HttpClient). Once you've done that, you construct your method instances the same way as always. You don't "add the BasicHttpContext" to the method.
Your best bet, I'd think, is to have your own object that sets up all of the junk required for preemptive auth, and has a simple method or methods for executing requests on given HTTPMethod objects.

in android,Mat Mannion's answer can't resolve https,still send two requests,you can do like below,the trick is append authHeader with user-agent：
public static DefaultHttpClient createProxyHttpClient() {
try {
final DefaultHttpClient client = createPlaintHttpClient();
client.setRoutePlanner(new HttpRoutePlanner() {
#Override
public HttpRoute determineRoute(HttpHost target, HttpRequest request, HttpContext context) throws HttpException {
boolean isSecure = "https".equalsIgnoreCase(target.getSchemeName());
if (needProxy) {
Header header = isSecure ? ProxyUtils.createHttpsAuthHeader() : ProxyUtils.createAuthHeader();
if (isSecure) {
client.getParams().setParameter(CoreProtocolPNames.USER_AGENT, com.netease.cloudmusic.utils.HttpRequest.USER_AGENT + "\r\n" + header.getName() + ":" + header.getValue());
} else {
client.getParams().setParameter(CoreProtocolPNames.USER_AGENT, com.netease.cloudmusic.utils.HttpRequest.USER_AGENT);
if (request instanceof RequestWrapper) {
request = ((RequestWrapper) request).getOriginal();
}
request.setHeader(header);
}
String host = isSecure ? ProxyUtils.SECURE_HOST : ProxyUtils.HOST;
int port = isSecure ? ProxyUtils.SECURE_PORT : ProxyUtils.PORT;
return new HttpRoute(target, null, new HttpHost(host, port), isSecure);
} else {
client.getParams().setParameter(CoreProtocolPNames.USER_AGENT, com.netease.cloudmusic.utils.HttpRequest.USER_AGENT);
return new HttpRoute(target, null, isSecure);
}
}
});
return client;
} catch (Exception e) {
e.printStackTrace();
return new DefaultHttpClient();
}
}
public static DefaultHttpClient createPlaintHttpClient() {
try {
KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
trustStore.load(null, null);
PlainSSLSocketFactory socketFactory = new PlainSSLSocketFactory(trustStore);
socketFactory.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
BasicHttpParams params = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(params, 30000);
HttpConnectionParams.setSoTimeout(params, 30000);
HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
HttpProtocolParams.setContentCharset(params, HTTP.UTF_8);
SchemeRegistry registry = new SchemeRegistry();
registry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
registry.register(new Scheme("https", socketFactory, 443));
ThreadSafeClientConnManager ccm = new ThreadSafeClientConnManager(params, registry);
HttpClientParams.setCookiePolicy(params, CookiePolicy.BROWSER_COMPATIBILITY);
final DefaultHttpClient client = new DefaultHttpClient(ccm, params);
client.setRoutePlanner(new HttpRoutePlanner() {
#Override
public HttpRoute determineRoute(HttpHost target, HttpRequest arg1, HttpContext arg2) throws HttpException {
client.getParams().setParameter(CoreProtocolPNames.USER_AGENT, com.netease.cloudmusic.utils.HttpRequest.USER_AGENT);
return new HttpRoute(target, null, "https".equalsIgnoreCase(target.getSchemeName()));
}
});
return client;
} catch (Exception e) {
e.printStackTrace();
return new DefaultHttpClient();
}
}

SolrConfig:
#Configuration
public class SolrConfig {
#Value("${solr.http.url}")
private String solrUrl;
#Value("${solr.http.username}")
private String solrUser;
#Value("${solr.http.password}")
private String solrPassword;
#Value("${solr.http.pool.maxTotal}")
private int poolMaxTotal;
#Value("${solr.http.pool.maxPerRoute}")
private int pollMaxPerRoute;
#Bean
public SolrClient solrClient() {
PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
connectionManager.setMaxTotal(poolMaxTotal);
connectionManager.setDefaultMaxPerRoute(pollMaxPerRoute);
CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(solrUser, solrPassword));
CloseableHttpClient httpClient = HttpClientBuilder.create()
.addInterceptorFirst(new PreemptiveAuthInterceptor())
.setConnectionManager(connectionManager)
.setDefaultCredentialsProvider(credentialsProvider)
.build();
return new HttpSolrClient.Builder(solrUrl).withHttpClient(httpClient).build();
}
}
PreemptiveAuthInterceptor:
public class PreemptiveAuthInterceptor implements HttpRequestInterceptor {
public void process(final HttpRequest request, final HttpContext context)
throws HttpException {
AuthState authState = (AuthState) context
.getAttribute(HttpClientContext.TARGET_AUTH_STATE);
// If no auth scheme available yet, try to initialize it
// preemptively
if (authState.getAuthScheme() == null) {
CredentialsProvider credentialsProvider = (CredentialsProvider) context
.getAttribute(HttpClientContext.CREDS_PROVIDER);
HttpHost targetHost = (HttpHost) context
.getAttribute(HttpCoreContext.HTTP_TARGET_HOST);
Credentials credentials = credentialsProvider.getCredentials(new AuthScope(
targetHost.getHostName(), targetHost.getPort()));
if (credentials == null) {
throw new HttpException(
"No credentials for preemptive authentication");
}
authState.update(new BasicScheme(), credentials);
}
}
}

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