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diff --git a/src/java/org/apache/commons/httpclient/protocol/SSLProtocolSocketFactory.java b/src/java/org/apache/commons/httpclient/protocol/SSLProtocolSocketFactory.java
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index fa0acc7..e6ce513 100644
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--- a/src/java/org/apache/commons/httpclient/protocol/SSLProtocolSocketFactory.java
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+++ b/src/java/org/apache/commons/httpclient/protocol/SSLProtocolSocketFactory.java
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@@ -44,9 +44,15 @@ import java.util.Iterator;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Locale;
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-import java.util.StringTokenizer;
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+import java.util.NoSuchElementException;
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import java.util.regex.Pattern;
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+import javax.naming.InvalidNameException;
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+import javax.naming.NamingException;
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+import javax.naming.directory.Attribute;
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+import javax.naming.directory.Attributes;
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+import javax.naming.ldap.LdapName;
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+import javax.naming.ldap.Rdn;
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import javax.net.ssl.SSLException;
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import javax.net.ssl.SSLSession;
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import javax.net.ssl.SSLSocket;
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@@ -424,28 +430,39 @@ public class SSLProtocolSocketFactory implements SecureProtocolSocketFactory {
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return dots;
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}
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- private static String getCN(X509Certificate cert) {
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- // Note: toString() seems to do a better job than getName()
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- //
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- // For example, getName() gives me this:
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- // 1.2.840.113549.1.9.1=#16166a756c6975736461766965734063756362632e636f6d
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- //
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- // whereas toString() gives me this:
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- // EMAILADDRESS=juliusdavies@cucbc.com
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- String subjectPrincipal = cert.getSubjectX500Principal().toString();
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-
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- return getCN(subjectPrincipal);
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-
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+ private static String getCN(final X509Certificate cert) {
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+ final String subjectPrincipal = cert.getSubjectX500Principal().toString();
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+ try {
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+ return extractCN(subjectPrincipal);
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+ } catch (SSLException ex) {
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+ return null;
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+ }
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}
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- private static String getCN(String subjectPrincipal) {
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- StringTokenizer st = new StringTokenizer(subjectPrincipal, ",");
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- while(st.hasMoreTokens()) {
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- String tok = st.nextToken().trim();
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- if (tok.length() > 3) {
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- if (tok.substring(0, 3).equalsIgnoreCase("CN=")) {
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- return tok.substring(3);
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+
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+ private static String extractCN(final String subjectPrincipal) throws SSLException {
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+ if (subjectPrincipal == null) {
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+ return null;
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+ }
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+ try {
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+ final LdapName subjectDN = new LdapName(subjectPrincipal);
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+ final List<Rdn> rdns = subjectDN.getRdns();
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+ for (int i = rdns.size() - 1; i >= 0; i--) {
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+ final Rdn rds = rdns.get(i);
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+ final Attributes attributes = rds.toAttributes();
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+ final Attribute cn = attributes.get("cn");
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+ if (cn != null) {
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+ try {
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+ final Object value = cn.get();
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+ if (value != null) {
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+ return value.toString();
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+ }
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+ } catch (NoSuchElementException ignore) {
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+ } catch (NamingException ignore) {
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+ }
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}
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}
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+ } catch (InvalidNameException e) {
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+ throw new SSLException(subjectPrincipal + " is not a valid X500 distinguished name");
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}
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return null;
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}
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