Add ability to authenticate against AD/LDAP

[adrianovieira]

Although google authorization is a great feature not all enterprises can use it to grant user authorization for must of their services.

Furthermore, some companies uses AD/LDAP as the service for users and services authentication and authorization.

So, it can be great to have a feature to setup matrix to use AD/LDAP service.

Description

From Wikipedia (AD / LDAP)

• Active Directory (AD) is a directory service developed by Microsoft for Windows domain networks. It is included in most Windows Server operating systems as a set of processes and services.[1][2] Initially, Active Directory was only in charge of centralized domain management. Starting with Windows Server 2008, however, Active Directory became an umbrella title for a broad range of directory-based identity-related services

• The Lightweight Directory Access Protocol (LDAP /ˈɛldæp/) is an open, vendor-neutral, industry standard application protocol for accessing and maintaining distributed directory information services over an Internet Protocol (IP) network.[1] Directory services play an important role in developing intranet and Internet applications by allowing the sharing of information about users, systems, networks, services, and applications throughout the network.

Is your feature request related to a problem? Please describe.

No

Describe alternatives you've considered

None so far

Additional context

🤔

[juliemar]

I believe the best way to support other kinds of authentication we have to change/decouple the current authentication way to an authentication plugin way.

in this way, anyone can create an authentication plugin to support all kind of authentications:

• Google
• AD/LDAP
• SAML
• Twitter
• Facebook
• Linkedin
• OpenId

Etc..

[hashtegner]

I'm working on this PR #235 to improve routes security.
After that, the passport.js authentication strategy allow us to implement different auth strategies.

[diramos1]

I saw it was merged on PR #303. Does anybody have documented how to use passport.js to auth in matrix?