1 package dolda.jsvc.util;
5 import java.security.SecureRandom;
7 public class Session implements java.io.Serializable {
8 private static final Map<String, Session> sessions = new HashMap<String, Session>();
9 private static final Map<Request, Session> cache = new WeakHashMap<Request, Session>();
10 private static final SecureRandom prng;
11 private static long lastclean = 0;
12 private final String id;
13 private final Map<Object, Object> props = new HashMap<Object, Object>();
14 private long ctime = System.currentTimeMillis(), atime = ctime, etime = 86400 * 1000;
15 private Collection<Listener> ll = new HashSet<Listener>();
19 prng = SecureRandom.getInstance("SHA1PRNG");
20 } catch(java.security.NoSuchAlgorithmException e) {
25 public static interface Listener {
26 public void destroy(Session sess);
29 private Session(String id) {
33 public synchronized void listen(Listener l) {
37 public synchronized Object get(Object key, Object def) {
38 if(props.containsKey(key))
39 return(props.get(key));
44 public synchronized Object put(Object key, Object val) {
45 return(props.put(key, val));
48 public void destroy() {
49 synchronized(Session.class) {
55 private synchronized void expire() {
60 public synchronized static int num() {
61 return(sessions.size());
64 private static String newid() {
65 byte[] rawid = new byte[16];
66 prng.nextBytes(rawid);
67 StringBuilder buf = new StringBuilder();
69 buf.append(Misc.int2hex((b & 0xf0) >> 4, false));
70 buf.append(Misc.int2hex(b & 0x0f, false));
72 return(buf.toString());
75 private static Session create(Request req, String id) {
76 Session sess = new Session(id);
79 ct = Integer.parseInt(req.ctx().libconfig("jsvc.session.expire", "0"));
82 ct = Integer.parseInt(req.ctx().sysconfig("jsvc.session.expire", "0"));
88 private synchronized static void clean() {
89 long now = System.currentTimeMillis();
90 for(Iterator<Session> i = sessions.values().iterator(); i.hasNext();) {
91 Session sess = i.next();
92 if(now > sess.atime + sess.etime) {
99 public synchronized static Session get(Request req) {
100 long now = System.currentTimeMillis();
101 if(now - lastclean > 3600 * 1000) {
106 Session sess = cache.get(req);
108 sess.atime = System.currentTimeMillis();
112 MultiMap<String, Cookie> cookies = Cookie.get(req);
113 Cookie sc = cookies.get("jsvc-session");
116 sess = sessions.get(sc.value);
118 sess = create(req, newid());
119 sessions.put(sess.id, sess);
120 sc = new Cookie("jsvc-session", sess.id);
121 sc.expires = new Date(System.currentTimeMillis() + (86400L * 365L * 1000L));
122 sc.path = req.ctx().sysconfig("jsvc.session.path", req.rooturl().getPath());
123 String pd = req.ctx().sysconfig("jsvc.session.domain", null);
129 cache.put(req, sess);
130 sess.atime = System.currentTimeMillis();
134 public static Session get() {
135 return(get(RequestThread.request()));