LDAP Authentication won't work when user has multiple e-mails

[baldpale]

Actual behavior

Can't login when user have multiple e-mail addresses - login screen says "Invalid User Email"

Expected behavior

When there are multiple e-mail addresses in LDAP, first one should be taken by default. Alternatively, there should be option to specify which field should be used as e-mail addresses (e.g our AD has custom field with preferred e-mail).

Steps to reproduce the behavior

• Configure LDAP authentication
• Add user with multiple values in mail field
• Try to login as this user.

Possible resolution

In server/libs/auth.js in LDAP section I added

if (Array.isArray(profile.mail)) {
    profile.mail = profile.mail.shift()
}

Works as expected.