cz.msebera.android.httpclient.conn.ssl

Class StrictHostnameVerifier

java.lang.Object

cz.msebera.android.httpclient.conn.ssl.AbstractVerifier

cz.msebera.android.httpclient.conn.ssl.StrictHostnameVerifier

All Implemented Interfaces:

X509HostnameVerifier, javax.net.ssl.HostnameVerifier

@Immutable
public class StrictHostnameVerifier
extends AbstractVerifier

The Strict HostnameVerifier works the same way as Sun Java 1.4, Sun Java 5, Sun Java 6-rc. It's also pretty close to IE6. This implementation appears to be compliant with RFC 2818 for dealing with wildcards.

The hostname must match either the first CN, or any of the subject-alts. A wildcard can occur in the CN, and in any of the subject-alts. The one divergence from IE6 is how we only check the first CN. IE6 allows a match against any of the CNs present. We decided to follow in Sun Java 1.4's footsteps and only check the first CN. (If you need to check all the CN's, feel free to write your own implementation!).

A wildcard such as "*.foo.com" matches only subdomains in the same level, for example "a.foo.com". It does not match deeper subdomains such as "a.b.foo.com".

Since:

4.0

Field Summary

Fields inherited from class cz.msebera.android.httpclient.conn.ssl.AbstractVerifier

log

Constructor Summary

Constructors

Constructor and Description
StrictHostnameVerifier()

Method Summary

Modifier and Type	Method and Description
java.lang.String	toString()
void	verify(java.lang.String host, java.lang.String[] cns, java.lang.String[] subjectAlts) Checks to see if the supplied hostname matches any of the supplied CNs or "DNS" Subject-Alts.

Methods inherited from class cz.msebera.android.httpclient.conn.ssl.AbstractVerifier

acceptableCountryWildcard, countDots, getCNs, getDNSSubjectAlts, verify, verify, verify, verify

Methods inherited from class java.lang.Object

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

Constructor Detail

StrictHostnameVerifier

public StrictHostnameVerifier()

Method Detail

verify

public final void verify(java.lang.String host,
                         java.lang.String[] cns,
                         java.lang.String[] subjectAlts)
                  throws javax.net.ssl.SSLException

Description copied from interface: X509HostnameVerifier

Checks to see if the supplied hostname matches any of the supplied CNs or "DNS" Subject-Alts. Most implementations only look at the first CN, and ignore any additional CNs. Most implementations do look at all of the "DNS" Subject-Alts. The CNs or Subject-Alts may contain wildcards according to RFC 2818.

Parameters:

host - The hostname to verify.

cns - CN fields, in order, as extracted from the X.509 certificate.

subjectAlts - Subject-Alt fields of type 2 ("DNS"), as extracted from the X.509 certificate.

Throws:

javax.net.ssl.SSLException - if the verification process fails.

toString

public final java.lang.String toString()

Overrides:

toString in class java.lang.Object