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package com.netscape.cms.servlet.csadmin;
import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.UnknownHostException;
import java.util.Enumeration;
import org.apache.commons.httpclient.ConnectTimeoutException;
import org.apache.http.HttpException;
import org.apache.http.HttpRequest;
import org.apache.http.HttpRequestInterceptor;
import org.apache.http.HttpResponse;
import org.apache.http.HttpResponseInterceptor;
import org.apache.http.conn.scheme.LayeredSchemeSocketFactory;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeSocketFactory;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.HttpContext;
import org.jboss.resteasy.client.ClientExecutor;
import org.jboss.resteasy.client.ClientResponse;
import org.jboss.resteasy.client.ClientResponseFailure;
import org.jboss.resteasy.client.ProxyFactory;
import org.jboss.resteasy.client.core.BaseClientResponse;
import org.jboss.resteasy.client.core.executors.ApacheHttpClient4Executor;
import org.jboss.resteasy.client.core.extractors.ClientErrorHandler;
import org.jboss.resteasy.spi.ResteasyProviderFactory;
import org.mozilla.jss.ssl.SSLCertificateApprovalCallback;
import org.mozilla.jss.ssl.SSLSocket;
public abstract class CMSRestClient {
protected boolean verbose;
protected String clientCertNickname;
protected ResteasyProviderFactory providerFactory;
protected ClientErrorHandler errorHandler;
protected ClientExecutor executor;
protected URI uri;
public CMSRestClient(String baseUri) throws URISyntaxException {
this(baseUri, null);
}
// Callback to approve or deny returned SSL server certs
// Right now, simply approve the cert.
// ToDO: Look into taking this JSS http client code and move it into
// its own class to be used by possible future clients.
public CMSRestClient(String baseUri, String clientCertNick) throws URISyntaxException {
clientCertNickname = clientCertNick;
uri = new URI(baseUri);
String protocol = uri.getScheme();
int port = uri.getPort();
DefaultHttpClient httpclient = new DefaultHttpClient();
httpclient.addRequestInterceptor(new HttpRequestInterceptor() {
public void process(HttpRequest request, HttpContext context) throws HttpException, IOException {
if (verbose) System.out.println("HTTP Request: "+request.getRequestLine());
}
});
httpclient.addResponseInterceptor(new HttpResponseInterceptor() {
public void process(HttpResponse response, HttpContext context) throws HttpException, IOException {
if (verbose) System.out.println("HTTP Response: "+response.getStatusLine());
}
});
if (protocol != null && protocol.equals("https")) {
Scheme scheme = new Scheme("https", port, new JSSProtocolSocketFactory());
httpclient.getConnectionManager().getSchemeRegistry().register(scheme);
}
executor = new ApacheHttpClient4Executor(httpclient);
providerFactory = ResteasyProviderFactory.getInstance();
providerFactory.addClientErrorInterceptor(new CMSErrorInterceptor());
errorHandler = new ClientErrorHandler(providerFactory.getClientErrorInterceptors());
}
private class ServerCertApprovalCB implements SSLCertificateApprovalCallback {
public boolean approve(org.mozilla.jss.crypto.X509Certificate servercert,
SSLCertificateApprovalCallback.ValidityStatus status) {
//For now lets just accept the server cert. This is a test tool, being
// pointed at a well know kra instance.
SSLCertificateApprovalCallback.ValidityItem item;
Enumeration<?> errors = status.getReasons();
while (errors.hasMoreElements()) {
item = (SSLCertificateApprovalCallback.ValidityItem) errors.nextElement();
int reason = item.getReason();
if (reason ==
SSLCertificateApprovalCallback.ValidityStatus.UNTRUSTED_ISSUER ||
reason == SSLCertificateApprovalCallback.ValidityStatus.BAD_CERT_DOMAIN) {
//Allow these two since we haven't necessarily installed the CA cert for trust
// and we are choosing "localhost" as the host for this client.
return true;
}
}
//For other errors return false
return false;
}
}
private class JSSProtocolSocketFactory implements SchemeSocketFactory, LayeredSchemeSocketFactory {
@Override
public Socket createSocket(HttpParams params)
throws IOException {
return null;
}
@Override
public Socket connectSocket(Socket sock,
InetSocketAddress remoteAddress,
InetSocketAddress localAddress,
HttpParams params)
throws IOException,
UnknownHostException,
ConnectTimeoutException {
SSLSocket socket;
String hostName = null;
int port = 0;
if (remoteAddress != null) {
hostName = remoteAddress.getHostName();
port = remoteAddress.getPort();
}
int localPort = 0;
InetAddress localAddr = null;
if (localAddress != null) {
localPort = localAddress.getPort();
localAddr = localAddress.getAddress();
}
if (sock == null) {
socket = new SSLSocket(InetAddress.getByName(hostName),
port,
localAddr,
localPort,
new ServerCertApprovalCB(),
null);
} else {
socket = new SSLSocket(sock, hostName, new ServerCertApprovalCB(), null);
}
if (socket != null && clientCertNickname != null) {
socket.setClientCertNickname(clientCertNickname);
}
return socket;
}
@Override
public boolean isSecure(Socket sock) {
//We only use this factory in the case of SSL Connections
return true;
}
@Override
public Socket createLayeredSocket(Socket arg0, String arg1, int arg2, boolean arg3) throws IOException,
UnknownHostException {
//This method implementation is required to get SSL working.
return null;
}
}
public <T> T createProxy(Class<T> clazz) {
return ProxyFactory.create(clazz, uri, executor, providerFactory);
}
@SuppressWarnings("unchecked")
public <T> T getEntity(ClientResponse<T> response) {
BaseClientResponse<T> clientResponse = (BaseClientResponse<T>)response;
try {
clientResponse.checkFailureStatus();
} catch (ClientResponseFailure e) {
errorHandler.clientErrorHandling((BaseClientResponse<T>) e.getResponse(), e);
} catch (RuntimeException e) {
errorHandler.clientErrorHandling(clientResponse, e);
}
return response.getEntity();
}
public boolean isVerbose() {
return verbose;
}
public void setVerbose(boolean verbose) {
this.verbose = verbose;
}
}
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