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 Map<Object, Object> props = new HashMap<Object, Object>();
13 private long ctime = System.currentTimeMillis(), atime = ctime, etime = 86400 * 1000;
14 private Collection<Listener> ll = new HashSet<Listener>();
18 prng = SecureRandom.getInstance("SHA1PRNG");
19 } catch(java.security.NoSuchAlgorithmException e) {
24 public static interface Listener {
25 public void expire(Session sess);
28 public synchronized void listen(Listener l) {
32 public synchronized Object get(Object key, Object def) {
33 if(props.containsKey(key))
34 return(props.get(key));
39 public synchronized Object put(Object key, Object val) {
40 return(props.put(key, val));
43 private synchronized void expire() {
48 public synchronized static int num() {
49 return(sessions.size());
52 private static String newid() {
53 byte[] rawid = new byte[16];
54 prng.nextBytes(rawid);
55 StringBuilder buf = new StringBuilder();
57 buf.append(Misc.int2hex((b & 0xf0) >> 4, false));
58 buf.append(Misc.int2hex(b & 0x0f, false));
60 return(buf.toString());
63 private static Session create(Request req) {
64 Session sess = new Session();
67 ct = Integer.parseInt(req.ctx().libconfig("jsvc.session.expire", "0"));
70 ct = Integer.parseInt(req.ctx().sysconfig("jsvc.session.expire", "0"));
76 private synchronized static void clean() {
77 long now = System.currentTimeMillis();
78 for(Iterator<Session> i = sessions.values().iterator(); i.hasNext();) {
79 Session sess = i.next();
80 if(now > sess.atime + sess.etime) {
87 public synchronized static Session get(Request req) {
88 long now = System.currentTimeMillis();
89 if(now - lastclean > 3600 * 1000) {
94 Session sess = cache.get(req);
96 sess.atime = System.currentTimeMillis();
100 MultiMap<String, Cookie> cookies = Cookie.get(req);
101 Cookie sc = cookies.get("jsvc-session");
104 sess = sessions.get(sc.value);
108 sessions.put(id, sess);
109 sc = new Cookie("jsvc-session", id);
110 sc.expires = new Date(System.currentTimeMillis() + (86400L * 365L * 1000L));
111 sc.path = req.ctx().sysconfig("jsvc.session.path", req.rooturl().getPath());
112 String pd = req.ctx().sysconfig("jsvc.session.domain", null);
118 cache.put(req, sess);
119 sess.atime = System.currentTimeMillis();
123 public static Session get() {
124 return(get(RequestThread.request()));