discourse/app/models/discourse_single_sign_on.rb

154 lines
4.0 KiB
Ruby

require_dependency 'single_sign_on'
class DiscourseSingleSignOn < SingleSignOn
def self.sso_url
SiteSetting.sso_url
end
def self.sso_secret
SiteSetting.sso_secret
end
def self.generate_sso(return_path="/")
sso = new
sso.nonce = SecureRandom.hex
sso.register_nonce(return_path)
sso.return_sso_url = Discourse.base_url + "/session/sso_login"
sso
end
def self.generate_url(return_path="/")
generate_sso(return_path).to_url
end
def register_nonce(return_path)
if nonce
$redis.setex(nonce_key, NONCE_EXPIRY_TIME, return_path)
end
end
def nonce_valid?
nonce && $redis.get(nonce_key).present?
end
def return_path
$redis.get(nonce_key) || "/"
end
def expire_nonce!
if nonce
$redis.del nonce_key
end
end
def nonce_key
"SSO_NONCE_#{nonce}"
end
def lookup_or_create_user(ip_address=nil)
sso_record = SingleSignOnRecord.find_by(external_id: external_id)
if sso_record && user = sso_record.user
sso_record.last_payload = unsigned_payload
else
user = match_email_or_create_user(ip_address)
sso_record = user.single_sign_on_record
end
# ensure it's not staged anymore
user.staged = false
# if the user isn't new or it's attached to the SSO record we might be overriding username or email
unless user.new_record?
change_external_attributes_and_override(sso_record, user)
end
if sso_record && (user = sso_record.user) && !user.active && !require_activation
user.active = true
user.save!
user.enqueue_welcome_message('welcome_user') unless suppress_welcome_message
end
custom_fields.each do |k,v|
user.custom_fields[k] = v
end
user.ip_address = ip_address
user.admin = admin unless admin.nil?
user.moderator = moderator unless moderator.nil?
# optionally save the user and sso_record if they have changed
user.save!
unless admin.nil? && moderator.nil?
Group.refresh_automatic_groups!(:admins, :moderators, :staff)
end
sso_record.save!
sso_record && sso_record.user
end
private
def match_email_or_create_user(ip_address)
unless user = User.find_by_email(email)
try_name = name.presence
try_username = username.presence
user_params = {
email: email,
name: try_name || User.suggest_name(try_username || email),
username: UserNameSuggester.suggest(try_username || try_name || email),
ip_address: ip_address
}
user = User.create!(user_params)
end
if user
if sso_record = user.single_sign_on_record
sso_record.last_payload = unsigned_payload
sso_record.external_id = external_id
else
user.create_single_sign_on_record(last_payload: unsigned_payload,
external_id: external_id,
external_username: username,
external_email: email,
external_name: name)
end
end
user
end
def change_external_attributes_and_override(sso_record, user)
if SiteSetting.sso_overrides_email && user.email != email
user.email = email
end
if SiteSetting.sso_overrides_username && user.username != username && username.present?
user.username = UserNameSuggester.suggest(username || name || email, user.username)
end
if SiteSetting.sso_overrides_name && user.name != name && name.present?
user.name = name || User.suggest_name(username.blank? ? email : username)
end
if SiteSetting.sso_overrides_avatar && avatar_url.present? && (
avatar_force_update ||
sso_record.external_avatar_url != avatar_url)
UserAvatar.import_url_for_user(avatar_url, user)
end
# change external attributes for sso record
sso_record.external_username = username
sso_record.external_email = email
sso_record.external_name = name
sso_record.external_avatar_url = avatar_url
end
end