public static void showSession(HttpServletRequest req, PrintStream out) {
// res.setContentType("text/html");
// Get the current session object, create one if necessary
HttpSession session = req.getSession();
out.println("Session id: " + session.getId());
out.println(" session.isNew(): " + session.isNew());
out.println(" session.getMaxInactiveInterval(): " + session.getMaxInactiveInterval() + " secs");
out.println(
" session.getCreationTime(): "
+ session.getCreationTime()
+ " ("
+ new Date(session.getCreationTime())
+ ")");
out.println(
" session.getLastAccessedTime(): "
+ session.getLastAccessedTime()
+ " ("
+ new Date(session.getLastAccessedTime())
+ ")");
out.println(" req.isRequestedSessionIdFromCookie: " + req.isRequestedSessionIdFromCookie());
out.println(" req.isRequestedSessionIdFromURL: " + req.isRequestedSessionIdFromURL());
out.println(" req.isRequestedSessionIdValid: " + req.isRequestedSessionIdValid());
out.println("Saved session Attributes:");
Enumeration atts = session.getAttributeNames();
while (atts.hasMoreElements()) {
String name = (String) atts.nextElement();
out.println(" " + name + ": " + session.getAttribute(name) + "<BR>");
}
}
public static void showSession(HttpServletRequest req, HttpServletResponse res, PrintStream out) {
// res.setContentType("text/html");
// Get the current session object, create one if necessary
HttpSession session = req.getSession();
// Increment the hit count for this page. The value is saved
// in this client's session under the name "snoop.count".
Integer count = (Integer) session.getAttribute("snoop.count");
if (count == null) {
count = 1;
} else count = count + 1;
session.setAttribute("snoop.count", count);
out.println(HtmlWriter.getInstance().getHtmlDoctypeAndOpenTag());
out.println("<HEAD><TITLE>SessionSnoop</TITLE></HEAD>");
out.println("<BODY><H1>Session Snoop</H1>");
// Display the hit count for this page
out.println(
"You've visited this page " + count + ((!(count.intValue() != 1)) ? " time." : " times."));
out.println("<P>");
out.println("<H3>Here is your saved session data:</H3>");
Enumeration atts = session.getAttributeNames();
while (atts.hasMoreElements()) {
String name = (String) atts.nextElement();
out.println(name + ": " + session.getAttribute(name) + "<BR>");
}
out.println("<H3>Here are some vital stats on your session:</H3>");
out.println("Session id: " + session.getId() + " <I>(keep it secret)</I><BR>");
out.println("New session: " + session.isNew() + "<BR>");
out.println("Timeout: " + session.getMaxInactiveInterval());
out.println("<I>(" + session.getMaxInactiveInterval() / 60 + " minutes)</I><BR>");
out.println("Creation time: " + session.getCreationTime());
out.println("<I>(" + new Date(session.getCreationTime()) + ")</I><BR>");
out.println("Last access time: " + session.getLastAccessedTime());
out.println("<I>(" + new Date(session.getLastAccessedTime()) + ")</I><BR>");
out.println(
"Requested session ID from cookie: " + req.isRequestedSessionIdFromCookie() + "<BR>");
out.println("Requested session ID from URL: " + req.isRequestedSessionIdFromURL() + "<BR>");
out.println("Requested session ID valid: " + req.isRequestedSessionIdValid() + "<BR>");
out.println("<H3>Test URL Rewriting</H3>");
out.println("Click <A HREF=\"" + res.encodeURL(req.getRequestURI()) + "\">here</A>");
out.println("to test that session tracking works via URL");
out.println("rewriting even when cookies aren't supported.");
out.println("</BODY></HTML>");
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String title = "Session Tracking Example";
HttpSession session = request.getSession(true);
String heading;
Integer accessCount = (Integer) session.getAttribute("accessCount");
if (accessCount == null) {
accessCount = new Integer(0);
heading = "Welcome, Newcomer";
} else {
heading = "Welcome Back";
accessCount = new Integer(accessCount.intValue() + 1);
}
session.setAttribute("accessCount", accessCount);
out.println(
"<BODY BGCOLOR=\"#FDF5E6\">\n"
+ "<H1 ALIGN=\"CENTER\">"
+ heading
+ "</H1>\n"
+ "<H2>Information on Your Session:</H2>\n"
+ "<TABLE BORDER=1 ALIGN=\"CENTER\">\n"
+ "<TR BGCOLOR=\"#FFAD00\">\n"
+ " <TH>Info Type<TH>Value\n"
+ "<TR>\n"
+ " <TD>ID\n"
+ " <TD>"
+ session.getId()
+ "\n"
+ "<TR>\n"
+ " <TD>Creation Time\n"
+ " <TD>"
+ new Date(session.getCreationTime())
+ "\n"
+ "<TR>\n"
+ " <TD>Time of Last Access\n"
+ " <TD>"
+ new Date(session.getLastAccessedTime())
+ "\n"
+ "<TR>\n"
+ " <TD>Number of Previous Accesses\n"
+ " <TD>"
+ accessCount
+ "\n"
+ "</TR>"
+ "</TABLE>\n");
// the following two statements show how to retrieve parameters in
// the request. The URL format is something like:
// http://localhost:8080/project2/servlet/ShowSession?myname=Chen%20Li
String myname = request.getParameter("myname");
if (myname != null) out.println("Hey " + myname + "<br><br>");
out.println("</BODY></HTML>");
}
public void getEnv(VariableTable vt) {
Enumeration e = null;
HttpServletRequest request = (HttpServletRequest) (pageContext.getRequest());
HttpSession session = request.getSession(false);
String db_charset = "gb2312";
String url_charset = null;
vt.remove("SESSION.LOGINID");
vt.remove("SESSION.LOGINNAME");
vt.remove("SESSION.LOGINROLE");
if (vt.exists("WEBCHART.DB_CHARSET")) {
db_charset = vt.getString("WEBCHART.DB_CHARSET");
}
if (vt.exists("WEBCHART.URL_CHARSET")) {
url_charset = vt.getString("WEBCHART.URL_CHARSET");
}
if (session != null) {
e = session.getAttributeNames();
while (e.hasMoreElements()) {
String name = (String) e.nextElement();
Object value = session.getAttribute(name);
vt.add(name, java.sql.Types.VARCHAR);
if (value != null) vt.setValue(name, value.toString());
}
vt.add("SESSION.ID", java.sql.Types.VARCHAR);
vt.setValue("SESSION.ID", session.getId());
vt.add("SESSION.CREATE", java.sql.Types.VARCHAR);
vt.setValue(
"SESSION.CREATE",
DBOperation.toString(
new java.util.Date(session.getCreationTime()), "yyyy-MM-dd HH:mm:ss"));
vt.add("SESSION.ACCESS", java.sql.Types.VARCHAR);
vt.setValue(
"SESSION.ACCESS",
DBOperation.toString(
new java.util.Date(session.getLastAccessedTime()), "yyyy-MM-dd HH:mm:ss"));
}
e = request.getParameterNames();
while (e.hasMoreElements()) {
String name = (String) e.nextElement();
String value = request.getParameter(name);
;
String par_values[] = request.getParameterValues(name);
name = name.toUpperCase();
if (name.equalsIgnoreCase("WEBCHART.SECURITY")
|| name.equalsIgnoreCase("WEBCHART.DEFAULTACCESS")
|| name.equalsIgnoreCase("WEBCHART.ALLOW")
|| name.equalsIgnoreCase("WEBCHART.DENY")
|| name.equalsIgnoreCase("WEBCHART.IPSECURITY")
|| name.equalsIgnoreCase("WEBCHART.IPACCESS")
|| name.equalsIgnoreCase("WEBCHART.IPALLOW")
|| name.equalsIgnoreCase("WEBCHART.IPDENY")
|| name.equalsIgnoreCase("WEBCHART.XSLDOC")
|| name.equalsIgnoreCase("WEBCHART.IMAGEONLY")
|| name.equalsIgnoreCase("WEBCHART.XMLDATA")
|| name.equalsIgnoreCase("WEBCHART.LOGSQL")
|| name.equalsIgnoreCase("WEBCHART.DATATYPE")
|| name.equalsIgnoreCase("WEBCHART.URLS")
|| name.equalsIgnoreCase("WEBCHART.TOPURLS")
|| name.equalsIgnoreCase("WEBCHART.TOPCURR")
|| name.equalsIgnoreCase("WEBCHART.LEFTURLS")
|| name.equalsIgnoreCase("WEBCHART.LEFTCURR")
|| name.equalsIgnoreCase("WEBCHART.INPUTS")
|| name.equalsIgnoreCase("WEBCHART.CACHE")
|| name.equalsIgnoreCase("WEBCHART.DATA")
|| name.equalsIgnoreCase("WEBCHART.CSS")
|| name.equalsIgnoreCase("WEBCHART.RELOAD")
|| name.equalsIgnoreCase("WEBCHART.EXPIRE")
|| name.equalsIgnoreCase("WEBCHART.DMLKEY")
|| name.equalsIgnoreCase("WEBCHART.ENGINE")
|| name.equalsIgnoreCase("WEBCHART.EXCELURL")
|| name.equalsIgnoreCase("WEBCHART.DBID")
|| name.equalsIgnoreCase("WEBCHART.DBIDSEED")
|| name.equalsIgnoreCase("WEBCHART.SECUREFIELDS")
|| name.equalsIgnoreCase("WEBCHART.KEEP_CACHE_IMAGE")
|| name.equalsIgnoreCase("WEBCHART.KEEP_CACHE_TIME")
|| name.startsWith("WEBCHART.SECUREMEMO")
|| name.startsWith("WEBCHART.QUERY_")
|| name.startsWith("WEBCHART.HEADHTML_")
|| name.startsWith("WEBCHART.DATAHTML_")
|| name.startsWith("WEBCHART.VARLIST_")
|| name.startsWith("WEBCHART.FORALL_")
|| name.startsWith("WEBCHART.XMLDATA_")
|| name.startsWith("WEBCHART.TABLE_")
|| name.startsWith("WEBCHART.COLUMN_")
|| name.startsWith("SESSION.")) continue;
if (name.startsWith("WEBCHART.") && !name.equals("WEBCHART.DOCTYPE")) continue;
vt.add(name, java.sql.Types.VARCHAR);
if (par_values != null && par_values.length > 1) {
StringBuffer temp = new StringBuffer();
for (int i = 0; i < par_values.length; i++) {
if (par_values[i] != null && par_values[i].trim().length() > 0) {
if (temp.length() > 0) {
temp.append(",");
}
temp.append(par_values[i]);
}
}
value = temp.toString();
}
if (url_charset != null) {
try {
value = new String(value.getBytes(url_charset), db_charset);
} catch (java.io.UnsupportedEncodingException uee) {
}
;
}
vt.setValue(name, value);
}
vt.add("REQUEST.REMOTEADDR", java.sql.Types.VARCHAR);
vt.setValue("REQUEST.REMOTEADDR", getClientIPAddr());
vt.add("REQUEST.REMOTEHOST", java.sql.Types.VARCHAR);
vt.setValue("REQUEST.REMOTEHOST", request.getRemoteAddr());
vt.add("REQUEST.REFERER", java.sql.Types.VARCHAR);
vt.setValue("REQUEST.REFERER", request.getHeader("Referer"));
vt.add("REQUEST.QUERYSTRING", java.sql.Types.VARCHAR);
vt.setValue("REQUEST.QUERYSTRING", request.getQueryString());
}