Help - auto check user is logged in?

Hello,
I have a servlet that validates a users id and password and creates a session userid variable.
I want to add logic to other servlets to verify the user is logged in, if not kick them to a login page.
What is the best way to check in a servlet?
Can I use a bean to return true or false?
How do the more experienced java web programmers do it?
Thanks for the help.
Frank

No code required. There is a whole section in the Servlet spec about this.
You specify that certain urls (or patterns) are only for certain roles. You specifiy the login mechanism (BASIC, FORM, DIGEST).
Then you assign the role to users and groups and off you go.
All safely within web.xml - no code required.

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Hi,
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Programatically Check if the logged in user matches with user in a list item

Hi All,
I have a custom list with 1) title column 2) People column.
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Hi Nayan,
Please modify the code like below:
SPUser user = oWeb.CurrentUser;
List<string> usergrps = new List<string>();
foreach (SPListItem itemA in GrpSubsItems)
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SPFieldUserValue userA = new SPFieldUserValue(itemA.ParentList.ParentWeb, userName);
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More information:
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Best Regards,
Dennis Guo
TechNet Community Support
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact
[email protected]

What's the best way to check whether a user is logged in or not?

I have a question about basic session handling.
I'm running Tomcat 5.0.30 and have a web application where users can register with a username and password, and then log into a "member site".
What is the best way of making sure that a user actually has logged in or not?
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use something like this while user had logged in
session.setAttribute("flag",<unique_number>);
for checking whether the user had logged in or not...
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How to check ,how many users are logged in and logged out in oracle ebs 11i/R12.

Hi Experts,
Kindly let me know
how to check ,how many users are logged in and logged out in oracle ebs 11i/R12.
Also, in the database level too ,Do we need to write any trigger for this?
Thanks in advance.

Hi,
How to check ,how many users are logged in and logged out in oracle ebs 11i/R12.
Please check the following links:
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List all users currently logged in on Oracle EBS
Also see forum Search:
Forum Search: Logged In EBS User
Also, in the database level too
Please see:
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Hi I would like to be able to check if the logged in user is a member of the administrator group programatically through c#
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hi Amit :) I ended up finding the answer myself before you posted here but thank you for your reply anyways, it is basically the same thing that I did.
This is what I ended up doing :) Basically I have three different types of users configured in my web.config - admins, readwrite users, and read only users. In my code here I loop through and find out who the person is. Based on what group they are in I
can later show/hide different options in my application :)
SvcSecurity.SecurityClient security = new SecurityClient(ENDPOINT_PROJ_SECURITY);
string adminGroupsString = ConfigurationManager.AppSettings["adminGroups"];
string readWriteString = ConfigurationManager.AppSettings["readWriteGroups"];
string readOnlyString = ConfigurationManager.AppSettings["readOnlyGroups"];
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List<Guid> readWriteGroupIDs = new List<Guid>();
List<Guid> readOnlyGroupIDs = new List<Guid>();
List<Project> projectList = new List<Project>();
SqlConnection con = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["RDB"].ConnectionString);
con.Open();
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command.Parameters.AddWithValue("@username", this.User.Identity.Name);
SqlDataReader reader = command.ExecuteReader();
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foreach (Guid id in readWriteGroupIDs)
SecurityGroupsDataSet group = security.ReadGroup(id);
foreach (SvcSecurity.SecurityGroupsDataSet.GroupMembersRow member in group.GroupMembers)
if (member.RES_UID.ToString().Equals(resourceID))
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if (!readWrite)
foreach (Guid id in readOnlyGroupIDs)
SecurityGroupsDataSet group = security.ReadGroup(id);
foreach (SvcSecurity.SecurityGroupsDataSet.GroupMembersRow member in group.GroupMembers)
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break;
Cheers! :)

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Edited by: wanjin on 2013-4-15 下午11:50

Hi Gareth，
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=========================
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Starting Oracle Universal Installer...
Checking installer requirements...
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Some requirement checks failed. You must fulfill these requirements before
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User Selected: No
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I have done the following:-
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192.168.1.133:0.0
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xhost+: not found
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xclock: not found
I know that I have to do the following:-
1. Install SUNWxwplt package ========> Is already Installed
2. Set DISPLAY variable
3. Execute xhost + on target (set in DISPLAY) computer
# pkginfo -i SUNWxwplt
system SUNWxwplt X Window System platform software
Some sites claim xming and some xwindows etc.... Plz give me a step by step instruction as how to overcome this..
bash-3.00# /usr/openwin/bin/xclock
Error: Can't open display:
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DISPLAY
bash-3.00# echo $DISPLAY
192.168.1.133:0.0
bash-3.00# /usr/openwin/bin/xclock
Error: Can't open display: 192.168.1.133:0.0
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./usr/openwin/bin/xhost
^C
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/usr/openwin/bin/xhost: unable to open display "192.168.1.133:0.0"
bash-3.00#
# echo $PATH
/usr/sbin:/usr/bin
I have also gone through the below ... but was not of much help
Unable to execute runInstaller: Check if the DISPLAY variable is set
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Edited by: [email protected] on Feb 11, 2009 5:16 AM

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We have a newly installed PI 7.0 system.
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Jay Malla

Hi,
Please, refer the link below. It says you cannot logon with SAPJSF user to J2EE engine for security reasons.
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Thanks
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Help - auto check user is logged in?

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