When connecting to an LDAP server, there are three ways to connect:
1. Insecurely through port 389 (LDAP).
2. Securely through port 696 (LDAPS).
3. Insecurely through port 389 then negotiate TLS (StartTLS).
This PR adds support for the 3rd flow, letting dex connect to the
standard LDAP port then negotiating TLS through the LDAP protocol
itself.
See a writeup here:
http://www.openldap.org/faq/data/cache/185.html
Support schemas that determine membership by having fields on the
user entity, instead of listing users on a groups entity. E.g. the
following schema is now supported when it wasn't previously:
cn=eric,cn=user,dn=exapmle,dn=com
objectClass=myPerson
cn: eric
uid: eric
email: eric@example.com
memberOf: foo
memberOf: bar
cn=foo,cn=group,dn=exapmle,dn=com
objectClass=myGroup
cn: foo
cn=bar,cn=group,dn=exapmle,dn=com
objectClass=myGroup
cn: bar
Specify "DN" as attribute name to return, but will only work if not present in ldap.Entry.Attributes
Use when full DN is stored in groupSearch's userAttr
ghodss/yaml converts from YAML to JSON before attempting to unmarshal.
This allows us to:
* Get the correct behavor when decoding base64'd []byte slices.
* Use *json.RawMessage.
* Not have to support extravagant YAML features.
* Let our structs use `json:` tags
Instead of throwing a 500 error if a user enters an invalid name,
display the same text box as if the user had entered the wrong
password.
NOTE: An invalid username now returns much quicker than an invalid
password. Consider adding an arbitrary sleep in the future if we
care about masking which was invalid.
