Solr 4 with basic authentication - authentication

Question

I am trying to connect to solr using solrj. My solr instance runs in jetty and is protected with basic authentication. I found these links that contain relevant information.
http://grokbase.com/t/lucene/solr-user/1288xjjbwx/http-basic-authentication-with-httpsolrserver
Preemptive Basic authentication with Apache HttpClient 4
However, I still get the following exception:
Caused by: org.apache.http.client.ClientProtocolException
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:822)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:732)
at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:352)
... 5 more
Caused by: org.apache.http.client.NonRepeatableRequestException: Cannot retry request with a non-repeatable request entity.
at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:625)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:464)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
... 8 more
I have also attached a snippet of the code I am using.
public static void main(String[] args) throws SolrServerException, IOException {
HttpSolrServer server = new HttpSolrServer("http://localhost:8983/solr/");
DefaultHttpClient m_client =(DefaultHttpClient)server.getHttpClient();
UsernamePasswordCredentials credentials = new UsernamePasswordCredentials(USERNAME, PASSWORD);
m_client.addRequestInterceptor(new PreemptiveAuthInterceptor(),0);
(((DefaultHttpClient)m_client).getCredentialsProvider()).setCredentials(new AuthScope("localhost",8983), credentials);
SolrInputDocument document = new SolrInputDocument();
document.addField("id",123213);
server.add(document);
server.commit();
}
}
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);
}
}
}
Can anyone point me in the right direction? Thanks !!

Answer 1

i had the same problem when implementing partial documents update. i solved the problem by implementing PreemptiveAuthInterceptor. see below code
PoolingClientConnectionManager cxMgr = new PoolingClientConnectionManager(
SchemeRegistryFactory.createDefault());
cxMgr.setMaxTotal(100);
cxMgr.setDefaultMaxPerRoute(20);
DefaultHttpClient httpclient = new DefaultHttpClient(cxMgr);
httpclient.addRequestInterceptor(
new PreemptiveAuthInterceptor(), 0);
httpclient.getCredentialsProvider().setCredentials(
AuthScope.ANY,
new UsernamePasswordCredentials(solrDto.getUsername(),
solrDto.getPassword()));
HttpSolrServer solrServerInstance = new HttpSolrServer(solrDto.getUrl(),
httpclient);
solrServerInstance.setRequestWriter(new BinaryRequestWriter());
solrServerInstance.setAllowCompression(true);
You also need:
private 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) {
CredentialsProvider credsProvider = (CredentialsProvider) context
.getAttribute(ClientContext.CREDS_PROVIDER);
HttpHost targetHost = (HttpHost) context
.getAttribute(ExecutionContext.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.setAuthScheme(new BasicScheme());
authState.setCredentials(creds);
}
}
}

Answer 2

According to the Solr Security - SolrJ section on Solr Wiki you should be able to do the following:
public static void main(String[] args) throws SolrServerException, IOException {
HttpSolrServer server = new HttpSolrServer("http://localhost:8983/solr/");
HttpClientUtil.setBasicAuth(server.getHttpClient(), USERNAME, PASSWORD);
SolrInputDocument document = new SolrInputDocument();
document.addField("id",123213);
server.add(document);
server.commit();
}

Answer 3

You need to add the JAR solr-solrj-4.0.0.jar for HttpClientUtil.
Then use the below code:
HttpSolrServer solrServer = new HttpSolrServer("http://localhost:8080/solr/"+url);
HttpClientUtil.setBasicAuth((DefaultHttpClient) solrServer.getHttpClient(), "USERNAME", "PASSWORD");
That worked for me on Jdk 1.6 and tomcat 6