Class: GitHub::Ldap::Domain

Inherits:
Object
  • Object
show all
Includes:
Filter
Defined in:
lib/github/ldap/domain.rb

Overview

A domain represents the base object for an ldap tree. It encapsulates the operations that you can perform against a tree, authenticating users, for instance.

This makes possible to reuse a server connection to perform operations with two different domain bases.

To get a domain, you’ll need to create a ‘Ldap` object and then call the method `domain` with the name of the base.

For example:

domain = GitHub::Ldap.new(options).domain(“dc=github,dc=com”)

Constant Summary

Constants included from Filter

Filter::ALL_GROUPS_FILTER, Filter::MEMBERSHIP_NAMES

Instance Method Summary collapse

Methods included from Filter

#all_members_by_uid, #group_contains_filter, #group_filter, #login_filter, #member_filter, #members_of_group, #posix_member_filter, #subgroups_of_group

Constructor Details

#initialize(ldap, base_name, uid) ⇒ Domain

Returns a new instance of Domain.



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# File 'lib/github/ldap/domain.rb', line 17

def initialize(ldap, base_name, uid)
  @ldap, @base_name, @uid = ldap, base_name, uid
end

Instance Method Details

#all_groups ⇒ Object

List all groups under this tree, including subgroups.

Returns a list of ldap entries.



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# File 'lib/github/ldap/domain.rb', line 24

def all_groups
  search(filter: ALL_GROUPS_FILTER)
end

#auth(user, password) ⇒ Object

Check if a user can be bound with a password.

user: is a ldap entry representing the user. password: is the user’s password.

Returns true if the user can be bound.



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# File 'lib/github/ldap/domain.rb', line 127

def auth(user, password)
  @ldap.bind(method: :simple, username: user.dn, password: password)
end

#authenticate!(login, password, group_names = nil) ⇒ Object

Authenticate a user with the ldap server.

login: is the user’s login. This method doesn’t accept email identifications. password: is the user’s password. group_names: is an array of group CNs.

Returns the user info if the credentials are valid and there are no groups configured. Returns the user info if the credentials are valid and the user belongs to a configured group. Returns nil if the credentials are invalid



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# File 'lib/github/ldap/domain.rb', line 140

def authenticate!(, password, group_names = nil)
  user = valid_login?(, password)

  return user if user && is_member?(user, group_names)
end

#bind(options = {}) ⇒ Object

Get the entry for this domain.

Returns a Net::LDAP::Entry



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# File 'lib/github/ldap/domain.rb', line 163

def bind(options = {})
  options[:size]  = 1
  options[:scope] = Net::LDAP::SearchScope_BaseObject
  options[:attributes] ||= []
  search(options).first
end

#filter_groups(query, opts = {}, &block) ⇒ Object

List all groups under this tree that match the query.

query: is the partial name to filter for. opts: additional options to filter with. It’s specially recommended to restrict this search by size. block: is an optional block to pass to the search.

Returns a list of ldap entries.



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# File 'lib/github/ldap/domain.rb', line 35

def filter_groups(query, opts = {}, &block)
  search(opts.merge(filter: group_contains_filter(query)), &block)
end

#groups(group_names) ⇒ Object

List the groups in the ldap server that match the configured ones.

group_names: is an array of group CNs.

Returns a list of ldap entries for the configured groups.



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# File 'lib/github/ldap/domain.rb', line 44

def groups(group_names)
  search(filter: group_filter(group_names))
end

#is_member?(user_entry, group_names) ⇒ Boolean

Check if the user is include in any of the configured groups.

user_entry: is the entry for the user in the server. group_names: is an array of group CNs.

Returns true if the user belongs to any of the groups. Returns false otherwise.

Returns:

  • (Boolean) 


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# File 'lib/github/ldap/domain.rb', line 88

def is_member?(user_entry, group_names)
  return true if group_names.nil?
  return true if group_names.empty?

  user_membership = membership(user_entry, group_names)

  !user_membership.empty?
end

#membership(user_entry, group_names) ⇒ Object

List the groups that a user is member of.

user_entry: is the entry for the user in the server. group_names: is an array of group CNs.

Return an Array with the groups that the given user is member of that belong to the given group list.



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# File 'lib/github/ldap/domain.rb', line 54

def membership(user_entry, group_names)
  if @ldap.virtual_attributes.enabled? || @ldap.recursive_group_search_fallback?
    all_groups = search(filter: group_filter(group_names))
    groups_map = all_groups.each_with_object({}) {|entry, hash| hash[entry.dn] = entry}

    if @ldap.virtual_attributes.enabled?
      member_of = groups_map.keys & user_entry[@ldap.virtual_attributes.virtual_membership]
      member_of.map {|dn| groups_map[dn]}
    else # recursive group search fallback
      groups_map.each_with_object([]) do |(dn, group_entry), acc|
        acc << group_entry if @ldap.load_group(group_entry).is_member?(user_entry)
      end
    end
  else
    # fallback to non-recursive group membership search
    filter = member_filter(user_entry)

    # include memberUid filter if enabled and entry has a UID set
    if @ldap.posix_support_enabled? && !user_entry[@ldap.uid].empty?
      filter |= posix_member_filter(user_entry, @ldap.uid)
    end

    filter &= group_filter(group_names)
    search(filter: filter)
  end
end

#search(options, &block) ⇒ Object

Search entries using this domain as base.

options: is a Hash with the options for the search. The base option is always overriden. block: is an optional block to pass to the search.

Returns an array with the entries found.



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# File 'lib/github/ldap/domain.rb', line 152

def search(options, &block)
  options[:base] = @base_name
  options[:attributes] ||= []
  options[:paged_searches_supported] = true

  @ldap.search(options, &block)
end

#user?(login, search_options = {}) ⇒ Boolean

Check if a user exists based in the ‘uid`.

login: is the user’s login search_options: Net::LDAP#search compatible options to pass through

Returns the user if the login matches any ‘uid`. Returns nil if there are no matches.

Returns:

  • (Boolean) 


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# File 'lib/github/ldap/domain.rb', line 117

def user?(, search_options = {})
  @ldap.user_search_strategy.perform(, @base_name, @uid, search_options).first
end

#valid_login?(login, password) ⇒ Boolean

Check if the user credentials are valid.

login: is the user’s login. password: is the user’s password.

Returns a Ldap::Entry if the credentials are valid. Returns nil if the credentials are invalid.

Returns:

  • (Boolean) 


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# File 'lib/github/ldap/domain.rb', line 104

def valid_login?(, password)
  if user = user?() and auth(user, password)
    return user
  end
end