96 lines
6.5 KiB
Markdown
96 lines
6.5 KiB
Markdown
# authLDAP
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[](https://gitter.im/heiglandreas/authLdap?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
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Use your existing LDAP as authentication-backend for your wordpress!
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[](https://travis-ci.org/heiglandreas/authLdap)
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[](https://wordpress.org/plugins/authldap/stats/)
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[](https://wordpress.org/plugins/authldap/)
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[](https://wordpress.org/plugins/authldap/)
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[](https://codeclimate.com/github/heiglandreas/authLdap)
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[](https://codeclimate.com/github/heiglandreas/authLdap)
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So what are the differences to other Wordpress-LDAP-Authentication-Plugins?
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* **Flexible**: You are totaly free in which LDAP-backend to use. Due to the extensive configuration you can
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freely decide how to do the authentication of your users. It simply depends on your
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filters
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* **Independent**: As soon as a user logs in, it is added/updated to the Wordpress' user-database
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to allow wordpress to always use the correct data. You only have to administer your users once.
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* **Failsafe**: Due to the users being created in Wordpress' User-database they can
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also log in when the LDAP-backend currently is gone.
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* **Role-Aware**: You can map Wordpress' roles to values of an existing LDAP-attribute.
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## How does the plugin work?
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Well, as a matter of fact it is rather simple. The plugin verifies, that the user
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seeking authentification can bind to the LDAP using the provided password.
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If that is so, the user is either created or updated in the wordpress-user-database.
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This update includes the provided password (so the wordpress can authenticate users
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even without the LDAP), the users name according to the authLDAP-preferences and
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the status of the user depending on the groups-settings of the authLDAP-preferences
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Writing this plugin would not have been as easy as it has been, without the
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wonderfull plugin of Alistair Young from http://www.weblogs.uhi.ac.uk/sm00ay/?p=45
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## Configuration
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### Usage Settings
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* **Enable Authentication via LDAP** Whether you want to enable authLdap for login or not
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* **debug authLdap** When you have problems with authentication via LDAP you can enable a debugging mode here.
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* **Save entered Password** Decide whether passwords will be cached in your wordpress-installation. **Attention:** Without the cache your users will not be able to log into your site when your LDAP is down!
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### Server Settings
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* **LDAP Uri** This is the URI where your ldap-backend can be reached. More information are actually on the Configuration page
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* **Filter** This is the real McCoy! The filter you define here specifies how a user will be found. Before applying the filter a %s will be replaced with the given username. This means, when a user logs in using ‘foobar’ as username the following happens:
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* **uid=%1$s** check for any LDAP-Entry that has an attribute ‘uid’ with value ‘foobar’
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* **(&(objectclass=posixAccount)(|(uid=%1$s)(mail=%1$s)))** check for any LDAP-Entry that has an attribute ‘objectclass’ with value ‘posixAccout’ and either a UID- or a mail-attribute with value ‘foobar’
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This filter is rather powerfull if used wisely.
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### Creating Users
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* **Name-Attribute** Which Attribute from the LDAP contains the Full or the First name of the user trying to log in. This defaults to name
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* **Second Name Attribute** If the above Name-Attribute only contains the First Name of the user you can here specify an Attribute that contains the second name. This field is empty by default
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* **User-ID Attribute** This field will be used as login-name for wordpress. Please give the Attribute, that is used to identify the user. This should be the same as you used in the above Filter-Option. This field defaults to uid
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* **Mail Attribute** Which Attribute holds the eMail-Address of the user? If more than one eMail-Address are stored in the LDAP, only the first given is used. This field defaults to mail
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* **Web-Attribute** If your users have a personal page (URI) stored in the LDAP, it can be provided here. This field is empty by default
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### User-Groups for Roles
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* **Group-Attribute** This is the attribute that defines the Group-ID that can be matched against the Groups defined further down This field defaults to gidNumber.
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* **Group-Filter** Here you can add the filter for selecting groups for the currentlly logged in user The Filter should contain the string %s which will be replaced by the login-name of the currently logged in
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## FAQ
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<dl>
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<dt>Can I change a users password with this plugin?</dt>
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<dd>Short Answer: <strong>No</strong>!<br>Long Answer: As the users credentials are not
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only used for a wordpress-site when you authenticate against an LDAP but for
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many other services also chances are great that there is a centralized place
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where password-changes shall be made. We'll later allow inclusion of a link
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to such a place but currently it's not available. And as password-hashing and
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where to store it requires deeper insight into the LDAP-Server then most users
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have and admins are willing to give, password changes are out of scope of this
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plugin. If you know exactyl what you do, you might want to have a look at
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<a href="https://github.com/heiglandreas/authLdap/issues/54#issuecomment-125851029">
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issue 54</a>
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wherer a way of adding it is described!
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</dd>
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<dt>Can I add a user to the LDAP when she creates a user-account on wordpress?</dt>
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<dd>Short Answer: <strong>No</strong>!<br>Long Answer: Even though that is technically possible
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it's not in the scope of this plugin. As creating a user in an LDAP often involves
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an administrative process that has already been implemented in your departments
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administration it doesn't make sense to rebuild that - in most cases highly
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individual - process in this plugin. If you know exactly what you do, have a look at
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<a href="https://github.com/heiglandreas/authLdap/issues/65">issue 65</a>
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where <a href="https://github.com/wtfiwtz">wtfiwtz</a> shows how to implement that feature.
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</dd>
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</dl>
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