/* * AuthenticationProcess.java * * Created on January 7, 2003, 5:30 PM */package gov.nist.sip.instantmessaging;import gov.nist.javax.sip.*;import javax.sip.*;import javax.sip.message.*; import javax.sip.header.*;import javax.sip.address.*;import java.util.*;import gov.nist.sip.instantmessaging.presence.* ;import gov.nist.sip.instantmessaging.authentication.* ;/** * * @author  olivier deruelle */public class AuthenticationProcess {        private Vector usersTagList;    private IMUserAgent imUA;        /** Creates a new instance of AuthenticationProcess */    public AuthenticationProcess(IMUserAgent imUA,Vector usersTagList) {        this.imUA=imUA;                if (usersTagList!=null) this.usersTagList=usersTagList;        else this.usersTagList=new Vector();    }        public boolean hasLoginInformations(String realmParameter) {        for(int i=0;i<usersTagList.size();i++) {            UserTag userTag=(UserTag)usersTagList.elementAt(i);            String realm=userTag.getUserRealm();            if (realm!=null && realm.trim().equals(realmParameter) ) {                return true;            }        }        return false;    }        public String getUserName(String realmParameter) {       for ( int i=0;i<usersTagList.size();i++) {            UserTag userTag=(UserTag)usersTagList.elementAt(i);            String realm=userTag.getUserRealm();            if (realm!=null && realm.trim().equals(realmParameter) ) {                return userTag.getUserName();            }       }       return null;    }        public String getPassword(String realmParameter) {        for(int i=0;i<usersTagList.size();i++) {            UserTag userTag=(UserTag)usersTagList.elementAt(i);            String realm=userTag.getUserRealm();            if (realm!=null && realm.trim().equals(realmParameter) ) {                return userTag.getUserPassword();            }        }        return null;    }         public void addUser(String userName,String password,String realm) {        UserTag userTag=new UserTag();        userTag.setUserName(userName);        userTag.setUserRealm(realm);        userTag.setUserPassword(password);                usersTagList.addElement(userTag);    }        public Header getHeader(Response response) {        try {                        // Proxy-Authorization header:            ProxyAuthenticateHeader authenticateHeader=(ProxyAuthenticateHeader)            response.getHeader(            ProxyAuthenticateHeader.NAME);                        WWWAuthenticateHeader wwwAuthenticateHeader=null;            CSeqHeader cseqHeader=(CSeqHeader)response.getHeader(CSeqHeader.NAME);                        String cnonce=null;            String uri="sip:"+imUA.getRegistrarAddress()+":"+imUA.getRegistrarPort();            String method=cseqHeader.getMethod();            String userName=null;            String password=null;            String nonce=null;            String realm=null;            String qop=null;                        if (authenticateHeader==null) {                wwwAuthenticateHeader=(WWWAuthenticateHeader)                response.getHeader(WWWAuthenticateHeader.NAME);                                nonce=wwwAuthenticateHeader.getNonce();                realm=wwwAuthenticateHeader.getRealm();                if (realm==null) {                    DebugIM.println("AuthenticationProcess, getProxyAuthorizationHeader(),"+                    " ERROR: the realm is not part of the 401 response!");                    return null;                }                cnonce=wwwAuthenticateHeader.getParameter("cnonce");                qop=wwwAuthenticateHeader.getParameter("qop");            }            else {                                nonce=authenticateHeader.getNonce();                realm=authenticateHeader.getRealm();                if (realm==null) {                    DebugIM.println("AuthenticationProcess, getProxyAuthorizationHeader(),"+                    " ERROR: the realm is not part of the 407 response!");                    return null;                }                cnonce=authenticateHeader.getParameter("cnonce");                qop=authenticateHeader.getParameter("qop");            }                                   /*            if ( hasLoginInformations(realm) ) {                // We can send the stored informations:                userName=getUserName(realm);                password=getPassword(realm);            }            else {             */                // We have to ask the user:                InstantMessagingGUI imGUI=imUA.getInstantMessagingGUI();                AuthenticationDialog authenticationDialog=new AuthenticationDialog(imGUI,realm);                            if ( authenticationDialog.isStop()) return null;                userName=authenticationDialog.getUserName();                password=authenticationDialog.getPassword();                                // Let's store those informations:                addUser(userName,password,realm);            //}                            HeaderFactory headerFactory=imUA.getHeaderFactory();                       DigestClientAuthenticationMethod digest=new DigestClientAuthenticationMethod();            digest.initialize(realm,userName,uri,nonce,password,method,cnonce,"MD5");                        if (authenticateHeader==null) {                AuthorizationHeader header=headerFactory.createAuthorizationHeader("Digest");                header.setParameter("username",userName);                header.setParameter("realm",realm);                header.setParameter("uri",uri);                header.setParameter("algorithm","MD5");                header.setParameter("opaque","");                header.setParameter("nonce",nonce);                header.setParameter("response",digest.generateResponse());                if (qop!=null)                    header.setParameter("qop",qop);                                                return header;                            }            else {                ProxyAuthorizationHeader header=headerFactory.createProxyAuthorizationHeader("Digest");                header.setParameter("username",userName);                header.setParameter("realm",realm);                header.setParameter("uri",uri);                header.setParameter("algorithm","MD5");                header.setParameter("opaque","");                header.setParameter("nonce",nonce);                header.setParameter("response",digest.generateResponse());                if (qop!=null)                    header.setParameter("qop",qop);                                                return header;                            }                    }        catch (Exception ex) {            ex.printStackTrace();            return null;        }    }    }