I'm building an authentication script from PHP to LDAP. My problem is that I don't really know how to check for the user if the user isn't my admin.
I don't really understand ldap_bind - here I can only login as my admin user, but then I can search for other users in my ou, but I don't know how to check their password.
What I have so far:
function login($up, $pw){
$ldap = ldap_connect("dejan.local") or die("Could not connect to LDAP server.");
if ($ldap){
ldap_set_option($ldap, LDAP_OPT_REFERRALS, 0);
ldap_set_option($ldap, LDAP_OPT_PROTOCOL_VERSION, 3);
//if I try $up and $pw here, I get an error
if ($bind = ldap_bind($ldap, "Admin", "Somepassword")){
$sr = ldap_search($ldap, "ou=testunit,DC=dejan,DC=local", "samaccountname=$up");
$info = ldap_get_entries($ldap, $sr);
//so here I've gotten information from the user $up
//but I would like to check if his password matches and then get his information
}
}
}
I've looked at some sort of auth scripts from others and they check the information through ldap_bind, but I can only connect with my admin user.
I believe the only change you need to make is:
if ($bind = ldap_bind($ldap, "$up#dejan.local", $pw)){
Which will make the request local to the specific domain. With Active Directory (which is somewhat different, blame Kerberos), you have to provide a context for login.
Related
I've set up Active Directory and ADLDAP on Windows server 2012. I'm trying a simple ldap_bind but continue to have a "invalid credentials" error spit back to me.
In my AD Users and Groups screen, I clearly see the domain I made along with the OU (organizational unit) and users inside of it. ASDI Edit clearly tells me the DN for that user:
CN=Bob Smith,OU=Accounting,DC=mydomain,DC=net
Further, the BaseDN is clearly told to me in ASDI Edit because it's above the OU group "accounting" -
DC=mydomain,DC=net
Now onto my script - which throws no LDAP connect errors, only on bind, with a constant invalid credentials:
$connectionLDAP = "LDAP://localhost:54126";
$basedn = 'DC=mydomain,DC=net';
$ldap = ldap_connect($connectionLDAP) or die("Could not connect to LDAP server.");
$username = $post['username'];
$password = $post['password'];
$usernameForBind = "CN=".$username.",OU=Accounting,".$basedn;
ldap_set_option($ldap, LDAP_OPT_PROTOCOL_VERSION, 3);
ldap_set_option($ldap, LDAP_OPT_REFERRALS, 0);
$bind = ldap_bind($ldap, $usernameForBind, $password);
This spits the following warning, and of course my script ends there since there is no positive match to username and password found:
Warning: ldap_bind(): Unable to bind to server: Invalid credentials in C:\....\login.php on line 41
And the below error echos produce this:
echo(ldap_error($ldap)."<br>");
echo(ldap_errno($ldap)."<br>");
Invalid credentials
49
I have tried every combination of DN, username, email address, mydomain\username without the rest of the DN info, everything I can think of....but for the life of me it won't take, and google + Stack searches unfortunately aren't helping me at the moment get past this.
Thanks for any assistance.
You are using Active directory on Windows, So please change your code to following It would work. Because AD need #domain_name as username suffix in bind function.
$connectionLDAP = "ldap://localhost";
$basedn = '#mydomain.net';
$ldap = #ldap_connect($connectionLDAP, 54126) or die("Could not connect to LDAP server.");
$username = $post['username'];
$password = $post['password'];
$usernameForBind = $username.$basedn;
#ldap_set_option($ldap, LDAP_OPT_PROTOCOL_VERSION, 3);
#ldap_set_option($ldap, LDAP_OPT_REFERRALS, 0);
$bind = #ldap_bind($ldap, $usernameForBind, $password);
I've tested such scenarios many times, It works for AD.
And also Please make sure that your AD server is running on the same port you're using in code ie. 54126.
I'm wondering how to authenticate against ApacheDS in PHP. I keep getting a "Invalid Credentials" when I try to log on as a user in a group. I can log in as "uid=admin,ou=system" just fine, but if I try "uid=,ou=consumers,ou=system", it returns "Invalid Credentials".
It is important to note that this is not the full DN of the entry. It's more like "uid=...+gn=...+...,ou=consumers,ou=system". I can search and find this value just fine when bound to the administrator and the API account.
How do I bind to a user just to authenticate and retrieve information on them (like the rest of their attributes and the children of their entry? Here's what I'm doing and failing.
$dn = ldap_connect($serveraddress,10389);
$bn = ldap_bind("uid=".$user.",ou=consumers,ou=system");
var_dump($bn);
var_dump(ldap_error($dn);
Thank you for any help you can provide.
Edit: So I've gotten farther. Why is this a protocol error?
$ds=ldap_connect("192.168.1.126",10389); // must be a valid LDAP server!
if ($ds) ldap_bind($ds,"uid=apiaccess,ou=system",...);
else die("!Can't connect to server");
$userid = md5($user);
$results = ldap_get_entries($ds,ldap_search($ds,"ou=consumers,ou=system","(uid=".$userid.")"));
$result = $results[0]["dn"];
echo $result;
if ($ds) ldap_bind($ds,$result,$pass);
else die("!Can't connect to server");
var_dump(ldap_error($ds));
You need to tell PHP to use LDAPv3.
Before you call ldap_bind, add the following call:
ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3);
I'm setting up a php page to connect to an LDAP server but for some reason it will not let me connect. At first I thought that my credentials had not been set up correctly, but after entering them into Softerra LDAP browser I was able to connect there.
<?php
$url = "ldaps://ldap.XXX.XXXX.edu:PORT/o=XXXX.edu";
$ldap_user = "uid=XXXXXXXX,ou=Campus Accounts,o=XXXX.edu";
$ldap_pass = "XXXXXXXX";
ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, 7);
$conn = ldap_connect($url) or die ("Could not connect to server");
if ($conn)
{
ldap_set_option($conn, LDAP_OPT_PROTOCOL_VERSION, 3) ;
$bind = ldap_bind($conn, $ldap_user, $ldap_pass);
}
?>
But all that I get back is the following message.
Warning: ldap_bind(): Unable to bind to server: Invalid credentials
Is there something extra I need to do to the user data to get it to be accepted?
If you are connecting to Active Directory (which is implied by the o=XXX.edu style notation (though if so, incorrect)) and by the comment suggestions of trying to bind as xxxx.edu\xxxx then the root most nodes in Active Directory are always dc= not o= and therefore a more correct bind DN or base DN would most likely finish as:
dc=xxx,dc=edu
I can authenticate using AD and PHP my problem is I got no idea how to get the current user displayname or cn details. This Sample code from php.com worked well for autheticating but now I need the details Anyone help?
// using ldap bind
$ldaprdn = 'uname'; // ldap rdn or dn
$ldappass = 'password'; // associated password
// connect to ldap server
$ldapconn = ldap_connect("ldap.example.com")
or die("Could not connect to LDAP server.");
if ($ldapconn) {
// binding to ldap server
$ldapbind = ldap_bind($ldapconn, $ldaprdn, $ldappass);
// verify binding
if ($ldapbind) {
echo "LDAP bind successful...";
} else {
echo "LDAP bind failed...";
}
}
Transmit a search request to the server and interpret the response. A search request (encapsulated in PHP by ldap_search) consists of the following at a minimum:
a base object (or base DN in some documentation): no objects superior to the base DN ail be considered of the search result
a search scope: one, subtree, or base: the depth of the search
a filter: used to filter (narrow) the result pool
requested attribues: this is where the LDAP client should put cn, displayName, and any other attributes needed for processing:
see also
LDAP: Mastering Search Filters
LDAP: Search best practices
LDAP: Programming practices
Before authenticating, store the values to be authenticate into session variables. If authentication success use the session values to display.
If authentication fails, clear the session values and try to submit the login form again.
Following is the sample code to assign the values into session variable in ZF2:
$session = new Container('base');
$this->session->offsetSet('username', $username);
and to get the session value:
$sesUserName = $this->session->offsetGet('username');
I hope this helps.
Is there a way to connect my flex web application to Active Directory, and get the logged username?
Right now we have a PHP script connected to the flex application, that gets user/pass input from the user and checks if there's such user in the AD, and that the password is correct.
I don't want to ask for user/pass, but to make the application get the domain username that connected to it, so I could use it (check if the user has access to my application and such).
Is there a way to do so?
<?php
// using ldap bind
$ldaprdn = 'uname'; // ldap rdn or dn
$ldappass = 'password'; // associated password
// connect to ldap server
$ldapconn = ldap_connect("ldap.example.com")
or die("Could not connect to LDAP server.");
if ($ldapconn) {
// binding to ldap server
$ldapbind = ldap_bind($ldapconn, $ldaprdn, $ldappass);
// verify binding
if ($ldapbind) {
echo "LDAP bind successful...";
} else {
echo "LDAP bind failed...";
}
}
?>
When your application is launched, you need to access the LDAP with the windows login credentials.
`AUTH_USER` request variable is the one which you have to check.
This will hold your Windows login username and AUTH_USER will be
MYDOMAINNAME\user.name
The username/password I need for this,
is that admin credentials, or any user
on the system?
You can get the username alone, not the password... when the user logs into his window's machine, we can check his credentials using Environment.username in C# and in PHP we can use AUTH_USER to verify the user logged in is valid.
Plus, do you know where can I find a
list of variables (like auth_user) of
which information can I get?
http://in3.php.net/manual/en/ref.ldap.php
You can get a lot of information from the above link.