Wiki source for StayingLoggedIn


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==Staying logged-in==
The log-in information is stored in a cookie which expires after 90 days. This is quite comfortable but could be a security risk, if you forget to logout in a i-net caffè ort on a pc used by many people.

{{lastedit}}

It would be better if a user could decide to be logged-out or to stay in.

I stuck some piece of code together. I know that stay_logged_in is a very uncreative name (loged-in with one or two g?), and the code needs someone to look over it. I am for example not sure if an enum in the table would be better. But to my great astonishment, it seems to work. :) --NilsLindenberg
''Two gs: "logged in" (fixed in code samples below - hope I didn't miss any). -- JavaWoman''

1) adding field to user table:

SQL-query:
%%(sql)
ALTER TABLE `wikka_users` ADD `stay_logged_in` ENUM( 'Y', 'N' ) DEFAULT 'N' NOT NULL;
%%

2) adding a table row to show the status of the variable (to ##actions/usersettings.php##):

change
%%(html)
<tr>
<td align="right">Show comments by default:</td>
<td><input type="hidden" name="show_comments" value="N"><input type="checkbox" name="show_comments" value="Y" <?php echo $user["show_comments"] == "Y" ? "checked=\"checked\"" : "" ?> /></td>
</tr>
<tr>
<td align="right">RecentChanges display limit:</td>
<td><input name="changescount" value="<?php echo htmlspecialchars($user["changescount"]) ?>" size="40" /></td>
</tr>
%%

%%(html)
<tr>
<td align="right">Show comments by default:</td>
<td><input type="hidden" name="show_comments" value="N"><input type="checkbox" name="show_comments" value="Y" <?php echo $user["show_comments"] == "Y" ? "checked=\"checked\"" : "" ?> /></td>
</tr>
<tr>
<td align="right">Stay logged-in:</td>
<td><input type="hidden" name="stay_logged_in" value="N"><input type="checkbox" name="stay_logged_in" value="Y" <?php echo $user["stay_logged_in"] == "Y" ? "checked=\"checked\"" : "" ?> /></td>
</tr>
<tr>
<td align="right">RecentChanges display limit:</td>
<td><input name="changescount" value="<?php echo htmlspecialchars($user["changescount"]) ?>" size="40" /></td>
</tr>
%%

3) added the user-table-update in ##actions/usersettings.php##:

change:

%%(php)
$this->Query("update ".$this->config["table_prefix"]."users set ".
"email = '".mysql_real_escape_string($_POST["email"])."', ".
"doubleclickedit = '".mysql_real_escape_string($_POST["doubleclickedit"])."', ".
"show_comments = '".mysql_real_escape_string($_POST["show_comments"])."', ".
"revisioncount = '".mysql_real_escape_string($_POST["revisioncount"])."', ".
"changescount = '".mysql_real_escape_string($_POST["changescount"])."' ".
"where name = '".$user["name"]."' limit 1");
%%

to

%%(php)
$this->Query("update ".$this->config['table_prefix']."users set ".
"email = '".mysql_real_escape_string($_POST['email'])."', ".
"doubleclickedit = '".mysql_real_escape_string($_POST['doubleclickedit'])."', ".
"show_comments = '".mysql_real_escape_string($_POST['show_comments'])."', ".
"stay_logged_in = '".mysql_real_escape_string($_POST['stay_logged_in'])."', ".
"revisioncount = '".mysql_real_escape_string($_POST['revisioncount'])."', ".
"changescount = '".mysql_real_escape_string($_POST['changescount'])."' ".
"where name = '".$user['name']."' limit 1");
%%

4) replace the function ""SetUser()"" in ##wikka.php## with the following one:

%%(php)
/**
* Sets cookie with name and passwort for a given user.
*
* Based on a given username, the name and the passwort of the user are stored
* in a cookie on his computer. A user can choose with the config-option
* "stay_logged_in", if the cookie is valid for a session, or for 90 days.
*
* @package wikka
* @subpackage user
* @name SetUser
*
* @author probably Hendrik Mans
* @author {@link http://wikka.jsnx.com/NilsLindenberg Nils Lindenberg} (choice between cookies)
* @version 2.0
* @since probably wakka 1.0
*
* @input string $user mandatory; name of the user
*
*/
function SetUser($user)
{
$_SESSION['user'] = $user;
if ($user['stay_logged_in'] == 'Y')
{
$this->SetPersistentCookie('wikka_user_name', $user['name']);
$this->SetPersistentCookie('wikka_pass', $user['password']);
}
else
{
$this->SetSessionCookie('wikka_user_name', $user['name']);
$this->SetSessionCookie('wikka_pass', $user['password']);
}
}
%%

==older discussion==

To be logged-out when you close the browser, change in ##wikka.php##

//see above for the new code//

Perhaps that should be the default and the user should have an "always loged-in" setting?

NilsLindenberg

''This is much more secure yet I think that this should be the user decision to keep the cookie or not through the UserSettings: maybe another field in the wikka_users table?
--ChristianBarthelemy''

''I agree - it's quite common to give a (registered) user a choice between a session cookie and a permanent cookie; such a choice should of course be stored in the user profile in the database. For unregistered visitors only session cookies should be used. --JavaWoman''
- unregistered users need no cookie, because they neither have a username nor a password. :-) NilsLindenberg
~''They may have a (separate) session cookie for a skin though - and that is an important usability/accessibility feature. But of course they can't be logged in :) --JavaWoman''

==off-topic ;-)==
''Might I suggest moving this code/topic to its own page and adding it to CodeContributions. I think it's a useful little add-in and should have its own place now that there's a bit of a solution for the issue. Well done Nils. -- Mike (GmBowen)''

Thank you. But seems like you get to like the different issue-different page think ;-) --NilsLindenberg

ummm, not really. Two things. When there is what I think of as a code solution or proposed code solution that is useful then I think it's useful to then distinguish it in a section of its own because then it's easier for others to find. Your solution was a good one, and so should be recognized as such & be more easily available to the whole community. Secondly, from a server-owner perspective, it can boil down to server-hits & storage space. A continuing discussion on one page where 90% of the content deals with other issues means that every time somebody adds a new note ALL the page is saved....all the content travels out, all the content in, and the whole record each time is stored as latest='N' and disproportionately (relative to the conversation) increases the size of the database (which then affects processing time & amount of server memory utilized & thoughput on the harddrives etc). So, to me, it makes sense to put active discussions like I've described on a separate page so that bandwidth & storage accrues more-or-less just to the topic in discussion and not ALL of the content. (I don't know anything about the wikka server....Jason could be running wikka on a 500celeron box, or on a big one......so for the latter my concerns would not matter, for the former they would....but I tend to err on the side of conservatism (probably the only issue in my life that I do)) Cheers, Mike

"When there is what I think of as a code solution or proposed code solution that is useful then I think it's useful to then distinguish it in a section of its own because then it's easier for others to find." I admit i had to read the sentence three times :-) Nils ''Sorry, I'll try to write more clearly. [I started writing, "less convolutedly" and then realized that didn't help matters]. ; ) -- GmBowen''

----
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