<%@ page language="java" import="java.security.*,
java.util.Date,
java.net.URLEncoder"
%>
<%!
public class EZproxyURL
{
private String myEzproxyUrl;
private String myEzproxyKey;
private String myStartingPointUrl;
private String getKeyedDigest(String buffer)
{
try {
MessageDigest d = MessageDigest.getInstance("MD5");
byte [] b = d.digest(buffer.getBytes("UTF8"));
StringBuffer sb = new StringBuffer();
for (int i = 0; i < b.length; i++) {
sb.append(Integer.toHexString((b[i] & 0xf0) >> 4) +
Integer.toHexString(b[i] & 0x0f));
}
return sb.toString();
} catch (NoSuchAlgorithmException e) {
} catch (java.io.UnsupportedEncodingException e) {
}
return null;
}
public EZproxyURL(String ezproxyUrl, String ezproxyKey,
String user, String groups)
{
myEzproxyUrl = ezproxyUrl;
myEzproxyKey = ezproxyKey;
Date now = new Date();
String packet = "$u" + ((int) (now.getTime() / 1000));
if (groups != null && groups.length() > 0) {
packet = packet + "$g" + groups;
}
packet = packet + "$e";
myStartingPointUrl = ezproxyUrl + "/login?user=" + URLEncoder.encode(user) +
"&ticket=" + URLEncoder.encode(getKeyedDigest(ezproxyKey + user + packet) + packet);
}
public EZproxyURL(String ezproxyUrl, String ezproxyKey, String user)
{
this(ezproxyUrl, ezproxyKey, user, "");
}
public String SPU(String url)
{
return myStartingPointUrl + "&qurl=" + URLEncoder.encode(url);
}
}
%>
<%
// For logUser, you might use getHeader("REMOTE_USER")
String logUser = "someuser";
EZproxyURL ezp = new EZproxyURL("http://ezproxy.yourlib.org", "shhhh", logUser);
%>
ezproxy ticket example
">Some Database
">Other Database