LDAP: Fixed php type error when no cn provided for user

Changes default fallback for name to first DN part, otherwise the whole
DN, rather than leave as null which was causing a type error.

For #5443

diff --git a/app/Access/LdapService.php b/app/Access/LdapService.php
index e5037ad2f95699243f495943fbb667b26d96d3a3..0f456efc24719796aa800f7f8e6cb324a02be1db 100644 (file)
--- a/app/Access/LdapService.php
+++ b/app/Access/LdapService.php
@@ -112,10 +112,14 @@ class LdapService
             return null;
         }
 
-        $userCn = $this->getUserResponseProperty($user, 'cn', null);
+        $nameDefault = $this->getUserResponseProperty($user, 'cn', null);
+        if (is_null($nameDefault)) {
+            $nameDefault = ldap_explode_dn($user['dn'], 1)[0] ?? $user['dn'];
+        }
+
         $formatted = [
             'uid'   => $this->getUserResponseProperty($user, $idAttr, $user['dn']),
-            'name'  => $this->getUserDisplayName($user, $displayNameAttrs, $userCn),
+            'name'  => $this->getUserDisplayName($user, $displayNameAttrs, $nameDefault),
             'dn'    => $user['dn'],
             'email' => $this->getUserResponseProperty($user, $emailAttr, null),
             'avatar' => $thumbnailAttr ? $this->getUserResponseProperty($user, $thumbnailAttr, null) : null,

diff --git a/tests/Auth/LdapTest.php b/tests/Auth/LdapTest.php
index 9a00c983a50475ee70dbfedc2fe5ce53323555c8..d1f128a50d9ba7e918f573e98de4424e80dfa71b 100644 (file)
--- a/tests/Auth/LdapTest.php
+++ b/tests/Auth/LdapTest.php
@@ -166,6 +166,26 @@ class LdapTest extends TestCase
         $this->assertDatabaseHas('users', ['email' => $this->mockUser->email, 'email_confirmed' => false, 'external_auth_id' => $ldapDn]);
     }
 
+    public function test_login_works_when_ldap_server_does_not_provide_a_cn_value()
+    {
+        $ldapDn = 'cn=test-user,dc=test' . config('services.ldap.base_dn');
+
+        $this->commonLdapMocks(1, 1, 1, 2, 1);
+        $this->mockLdap->shouldReceive('searchAndGetEntries')->times(1)
+            ->with($this->resourceId, config('services.ldap.base_dn'), \Mockery::type('string'), \Mockery::type('array'))
+            ->andReturn(['count' => 1, 0 => [
+                'dn'   => $ldapDn,
+                'mail' => [$this->mockUser->email],
+            ]]);
+
+        $resp = $this->mockUserLogin();
+        $resp->assertRedirect('/');
+        $this->assertDatabaseHas('users', [
+            'name' => 'test-user',
+            'email' => $this->mockUser->email,
+        ]);
+    }
+
     public function test_a_custom_uid_attribute_can_be_specified_and_is_used_properly()
     {
         config()->set(['services.ldap.id_attribute' => 'my_custom_id']);