Hi Everyone,
Using the example provided by SAP I am trying to implement SSO between SAP EP and a third party application. When I run my code I get a java.lang.UnsatisfiedLinkError error. Not sure what the problem is. I have downloaded the latest version the sapsecu.dll and sapssoext.dll from the SAP Service Marketplace. I have included both these files in the my C:Windowssystem32 directory. I also, confirmed that this directory (C:Windowssystem32) is in my path.
I get the following exception
java.lang.UnsatisfiedLinkError: init
at com.sap.CookieReader.init(Native Method)
at com.sap.CookieReader.main(CookieReader.java:358)
Exception in thread "main"
Below is my code:
public class CookieReader {
/////////////////////////////
static Hashtable theCookies = new Hashtable();
public static java.security.cert.X509Certificate[] certificates = null;
public static Socket clientSocket = null;
public static String SSO_COOKIE = "";
public static final int ISSUER_CERT_SUBJECT = 0;
public static final int ISSUER_CERT_ISSUER = 1;
public static final int ISSUER_CERT_SERIALNO = 2;
private static boolean initialized = false;
public static String SECLIBRARY ;
public static String SSO2TICKETLIBRARY = "sapssoext";
static
{
if (System.getProperty("os.name").startsWith("Win"))
{
SECLIBRARY = "sapsecu.dll";
}
else
{
SECLIBRARY = "libsapsecu.so";
}
try
{
System.loadLibrary(SSO2TICKETLIBRARY);
System.out.println("SAPSSOEXT loaded.");
}
catch (Throwable e)
{
System.out.println ("Error during initialization of SSO2TICKET:n" + e.getMessage());
}
System.out.println("static part ends.n");
}
/**
* Initialization
*
* @param seclib location of ssf-implemenation
*
* @return true/false whether initailisation was ok
*/
private static native synchronized boolean init(String seclib);
/**
* Returns internal version.
*
* @return version
*/
public static native synchronized String getVersion();
/**
* eval ticket
*
* @param ticket the ticket
* @param pab location of pab
* @param pab_password password for access the pab
*
* @return [0] = (String)user, [1] = (String)sysid, [2] = (String)client , [3] =
(byte[])certificate
*
*/
public static native synchronized Object[] evalLogonTicket(String ticket,
String pab, String pab_password) throws Exception;
/**
* Parse certificate
* @param cert Certificate received from evalLogonTicket
* @param info_id One of the requst id´s
*
* @return Info sring from certificate
*/
public static native synchronized String parseCertificate(byte[] cert,int info_id);
// print the parameters from ticket
static void PrintResults(String user, String sysid,
String client, String subject, String issuer, String ticket)
{
System.out.println("***********************************************");
System.out.println(" Output of program:");
System.out.println("***********************************************");
System.out.println("n");
System.out.println("The ticketnn" + ticket + "n");
System.out.println("was successfully validated.");
System.out.println("User : " + user);
System.out.println("Ident of ticket issuing system:");
System.out.println("Sysid : " + sysid);
System.out.println("Client : " + client);
System.out.println("Certificate data of issuing system:");
System.out.println("Subject : " + subject);
System.out.println("Issuer : " + issuer);
System.out.println("n");
}
// read the ticket string from a File
public static String getTicket(String filename) throws FileNotFoundException
{
try
{
BufferedReader in = new BufferedReader(new FileReader(filename));
String str;
StringBuffer strBuffer = new StringBuffer();
while ((str = in.readLine()) != null)
{
strBuffer.append(str);
}
in.close();
return strBuffer.toString();
}
catch (Exception e)
{
// Let the user know what went wrong.
System.out.println("The file could not be read:");
System.out.println(e.getMessage());
throw new FileNotFoundException("File "+ filename +" could not be read");
}
}
// parse the arguments for an option
static String getCommandParam(String[] args, String option)
{
for(int i=0; i<args.length; i++)
{
if(args<i>.equals(option) && args.length > i+1)
{
return args[i+1];
}
}
return null;
}
// print help to console
static void PrintHelp()
{
System.out.println(" java SSO2Ticket -i <ticket_file> [-L <SSF_LIB>]");
System.out.println(" [-p <file containing public key>]");
}
// get the full path to a file
static String getFullFilePath(String filename)throws FileNotFoundException
{
if(filename==null)
return null;
String path;
File file = new File(filename);
if( file.getAbsolutePath().toLowerCase().indexOf(".pse") > 0 )
{
path = file.getAbsolutePath();
}
else
{
path = file.getAbsolutePath() + ".pse";
}
if( ! new File(path).exists() )
throw new FileNotFoundException("File "+ filename +" does not exists");
return path;
}
/**
* Send the Hashtable (theCookies) as cookies, and write them to
* the specified URLconnection
*
* @param urlConn The connection to write the cookies to.
* @param printCookies Print or not the action taken.
*
* @return The urlConn with the all the cookies in it.
*/
public URLConnection writeCookies
(URLConnection urlConn, boolean printCookies){
String cookieString = "";
Enumeration keys = theCookies.keys();
while (keys.hasMoreElements()) {
String key = (String)keys.nextElement();
cookieString += key + "=" + theCookies.get(key);
if (keys.hasMoreElements())
cookieString += "; ";
}
urlConn.setRequestProperty("Cookie", cookieString);
if (printCookies)
System.out.println("Wrote cookies:n " + cookieString);
return urlConn;
}
/**
* Read cookies from a specified URLConnection, and insert them
* to the Hashtable
* The hashtable represents the Cookies.
*
* @param urlConn the connection to read from
* @param printCookies Print the cookies or not, for debugging
* @param reset Clean the Hashtable or not
*/
public void readCookies(URLConnection urlConn, boolean printCookies,
boolean reset){
if (reset)
theCookies.clear();
int i=1;
String hdrKey;
String hdrString;
String aCookie;
while ((hdrKey = urlConn.getHeaderFieldKey(i)) != null) {
if (hdrKey.equals("Set-Cookie")) {
hdrString = urlConn.getHeaderField(i);
StringTokenizer st = new StringTokenizer(hdrString,",");
while (st.hasMoreTokens()) {
String s = st.nextToken();
aCookie = s.substring(0, s.indexOf(";"));
// aCookie = hdrString.substring(0, s.indexOf(";"));
int j = aCookie.indexOf("=");
if (j != -1) {
if (!theCookies.containsKey(aCookie.substring(0, j))){
// if the Cookie do not already exist then when keep it,
// you may want to add some logic to update the stored Cookie instead.
// thanks to rwhelan
theCookies.put(aCookie.substring(0, j),aCookie.substring(j + 1));
if (printCookies){
System.out.println("Reading Key: " + aCookie.substring(0, j));
System.out.println(" Val: " + aCookie.substring(j + 1));
}
}
}
}
}
i++;
}
}
/**
* Display all the cookies currently in the HashTable
*
*/
public void viewAllCookies()
{
System.out.println("All Cookies are:");
Enumeration keys = theCookies.keys();
String key;
while (keys.hasMoreElements())
{
key = (String) keys.nextElement();
System.out.println("The value of key is " + key);
if(key.toString().equals("MYSAPSSO2"))
{
SSO_COOKIE = (String)theCookies.get(key);
}
}
}
public static void main(String[] args) throws Exception
{
CookieReader cr = new CookieReader();
URL sa;
URLConnection urlConn;
String keys;
try
{
System.out.println("Creating connection");
sa = new URL("http://localhost:50100/irj/portal?login_submit=on&login_do_redirect=1&no_cert_storing=on&j_user=myousuf&j_password=mani1982&j_authscheme=default&uidPasswordLogon=Log+on");
//
urlConn = sa.openConnection();
System.out.println("Created Connection --- All set");
cr.readCookies(urlConn, true, false);
cr.viewAllCookies();
System.out.println("The value of SSO_COOKIE = " + SSO_COOKIE);
}
catch(Exception e)
{
System.out.println(e.getMessage());
}
try
{
byte[] certificate;
String ticket;
String pab;
String ssf_library;
System.out.println("Start SSO2TICKET main");
System.out.println("-------------- test version --------------");
//String version = CookieReader.getVersion();
ticket = SSO_COOKIE;
//pab = "verify.pse";
ssf_library = getCommandParam(args,"-L");
//pab = getFullFilePath("verify.pse");
pab = getFullFilePath(getCommandParam(args,"-p"));
System.out.println("ssf_library = " + ssf_library);
System.out.println("Public Access Key Path = " + pab);
if(!init(ssf_library))
{
System.out.println ("Could not load library: " + ssf_library);
return;
}
Object o[] = evalLogonTicket(ticket, pab!=null?pab:"SAPdefault" , "password");
PrintResults((String)o[0],(String)o[1],
(String)o[2],
parseCertificate((byte[])o[3],ISSUER_CERT_SUBJECT),
parseCertificate((byte[])o[3],ISSUER_CERT_ISSUER),ticket);
}
catch(Exception e)
{
System.out.println(e.getMessage());
}
//
// }
//
//
}
}
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