Added support for LDAP Posix Groups (OpenLDAP with memberUid)

doc/config.markdown

@@ -170,6 +170,11 @@ define('LDAP_GROUP_BASE_DN', '');
 // Example for ActiveDirectory: (&(objectClass=group)(sAMAccountName=%s*))
 define('LDAP_GROUP_FILTER', '');
 
+// LDAP user group filter
+// If this filter is configured, Kanboard will search user groups in LDAP_GROUP_BASE_DN
+// Example for OpenLDAP: (&(objectClass=posixGroup)(memberUid=%s))
+define('LDAP_GROUP_USER_FILTER', '');
+
 // LDAP attribute for the group name
 define('LDAP_GROUP_ATTRIBUTE_NAME', 'cn');
 ```

doc/ldap-authentication.markdown

@@ -167,8 +167,8 @@ Just change the value of `LDAP_ACCOUNT_CREATION` to `false`:
 define('LDAP_ACCOUNT_CREATION', false);
 ```
 
-Troubleshootings
-----------------
+Troubleshooting
+---------------
 
 ### SELinux restrictions
 

doc/ldap-group-sync.markdown

@@ -5,7 +5,7 @@ Requirements
 ------------
 
 - Have LDAP authentication properly configured
-- Use a LDAP server that supports `memberOf`
+- Use a LDAP server that supports `memberOf` or `memberUid` (PosixGroups)
 
 Define automatically user roles based on LDAP groups
 ----------------------------------------------------
@@ -15,7 +15,7 @@ Use these constants in your config file:
 - `LDAP_GROUP_ADMIN_DN`: Distinguished names for application administrators
 - `LDAP_GROUP_MANAGER_DN`: Distinguished names for application managers
 
-Example:
+### Example for Active Directory:
 
 ```php
 define('LDAP_GROUP_ADMIN_DN', 'CN=Kanboard Admins,CN=Users,DC=kanboard,DC=local');
@@ -26,6 +26,18 @@ define('LDAP_GROUP_MANAGER_DN', 'CN=Kanboard Managers,CN=Users,DC=kanboard,DC=lo
 - People member of "Kanboard Managers" will have the role "Managers"
 - Everybody else will have the role "User"
 
+### Example for OpenLDAP with Posix Groups:
+
+```php
+define('LDAP_GROUP_BASE_DN', 'ou=Groups,dc=kanboard,dc=local');
+define('LDAP_GROUP_USER_FILTER', '(&(objectClass=posixGroup)(memberUid=%s))');
+define('LDAP_GROUP_ADMIN_DN', 'cn=Kanboard Admins,ou=Groups,dc=kanboard,dc=local');
+define('LDAP_GROUP_MANAGER_DN', 'cn=Kanboard Managers,ou=Groups,dc=kanboard,dc=local');
+```
+
+You **must define the parameter** `LDAP_GROUP_USER_FILTER` if your LDAP server use `memberUid` instead of `memberOf`.
+All parameters of this example are mandatory.
+
 Automatically load LDAP groups for project permissions
 ------------------------------------------------------
 
@@ -41,7 +53,7 @@ If the group doesn't exist in the local database, it will be automatically synce
 - `LDAP_GROUP_FILTER`: LDAP filter used to perform the query
 - `LDAP_GROUP_ATTRIBUTE_NAME`: LDAP attribute used to fetch the group name
 
-Example:
+### Example for Active Directory:
 
 ```php
 define('LDAP_GROUP_PROVIDER', true);
@@ -52,7 +64,15 @@ define('LDAP_GROUP_FILTER', '(&(objectClass=group)(sAMAccountName=%s*))');
 With the filter given as example above, Kanboard will search for groups that match the query.
 If the end-user enter the text "My group" in the auto-complete box, Kanboard will return all groups that match the pattern: `(&(objectClass=group)(sAMAccountName=My group*))`.
 
-- Note 1: The special characters `*` is important here, otherwise an exact match will be done.
+- Note 1: The special characters `*` is important here, **otherwise an exact match will be done**.
 - Note 2: This feature is only compatible with LDAP authentication configured in "proxy" or "anonymous" mode
 
 [More examples of LDAP filters for Active Directory](http://social.technet.microsoft.com/wiki/contents/articles/5392.active-directory-ldap-syntax-filters.aspx)
+
+### Example for OpenLDAP with Posix Groups:
+
+```php
+define('LDAP_GROUP_PROVIDER', true);
+define('LDAP_GROUP_BASE_DN', 'ou=Groups,dc=kanboard,dc=local');
+define('LDAP_GROUP_FILTER', '(&(objectClass=posixGroup)(cn=%s*))');
+```

doc/ldap-parameters.markdown

@@ -26,6 +26,7 @@ Here is the list of available LDAP parameters:
 | `LDAP_GROUP_PROVIDER`           | false          | Enable LDAP group provider for project permissions  |
 | `LDAP_GROUP_BASE_DN`            | Empty          | LDAP Base DN for groups   |
 | `LDAP_GROUP_FILTER`             | Empty          | LDAP group filter (Example: "(&(objectClass=group)(sAMAccountName=%s*))")   |
+| `LDAP_GROUP_USER_FILTER`        | Empty          | If defined, Kanboard will search user groups in LDAP_GROUP_BASE_DN with this filter, it's useful only for posixGroups (Example: `(&(objectClass=posixGroup)(memberUid=%s))`) |
 | `LDAP_GROUP_ATTRIBUTE_NAME`     | cn             | LDAP attribute for the group name  |
 
 Notes: