edu.uci.ics.crawler4j.fetcher

Class SniSSLConnectionSocketFactory

java.lang.Object

org.apache.http.conn.ssl.SSLConnectionSocketFactory

edu.uci.ics.crawler4j.fetcher.SniSSLConnectionSocketFactory

All Implemented Interfaces:

org.apache.http.conn.socket.ConnectionSocketFactory, org.apache.http.conn.socket.LayeredConnectionSocketFactory

public class SniSSLConnectionSocketFactory
extends org.apache.http.conn.ssl.SSLConnectionSocketFactory

Class to work around the exception thrown by the SSL subsystem when the server is incorrectly configured for SNI. In this case, it may return a warning: "handshake alert: unrecognized_name". Browsers usually ignore this warning, while Java SSL throws an exception. This class extends the SSLConnectionSocketFactory to remove the hostname used in the request, which basically disabled SNI for this host. Based on the code provided by Ivan Shcheklein, available at: http://stackoverflow.com/questions/7615645/ssl-handshake-alert-unrecognized-name-error-since -upgrade-to-java-1-7-0/28571582#28571582

Field Summary

Fields

Modifier and Type	Field and Description
static String	ENABLE_SNI

Fields inherited from class org.apache.http.conn.ssl.SSLConnectionSocketFactory

ALLOW_ALL_HOSTNAME_VERIFIER, BROWSER_COMPATIBLE_HOSTNAME_VERIFIER, SSL, SSLV2, STRICT_HOSTNAME_VERIFIER, TLS

Constructor Summary

Constructors

Constructor and Description
SniSSLConnectionSocketFactory(SSLContext sslContext, HostnameVerifier verifier)

Method Summary

Modifier and Type	Method and Description
Socket	createLayeredSocket(Socket socket, String target, int port, org.apache.http.protocol.HttpContext context)

Methods inherited from class org.apache.http.conn.ssl.SSLConnectionSocketFactory

connectSocket, createSocket, getDefaultHostnameVerifier, getSocketFactory, getSystemSocketFactory, prepareSocket

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ENABLE_SNI

public static final String ENABLE_SNI

See Also:

Constant Field Values

Constructor Detail

SniSSLConnectionSocketFactory

public SniSSLConnectionSocketFactory(SSLContext sslContext,
                                     HostnameVerifier verifier)

Method Detail

createLayeredSocket

public Socket createLayeredSocket(Socket socket,
                                  String target,
                                  int port,
                                  org.apache.http.protocol.HttpContext context)
                           throws IOException

Specified by:

createLayeredSocket in interface org.apache.http.conn.socket.LayeredConnectionSocketFactory

Overrides:

createLayeredSocket in class org.apache.http.conn.ssl.SSLConnectionSocketFactory

Throws:

IOException