discourse/lib/auth/managed_authenticator.rb

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# frozen_string_literal: true
class Auth::ManagedAuthenticator < Auth::Authenticator
def description_for_user(user)
associated_account = UserAssociatedAccount.find_by(provider_name: name, user_id: user.id)
return "" if associated_account.nil?
description_for_auth_hash(associated_account) || I18n.t("associated_accounts.connected")
end
def description_for_auth_hash(auth_token)
return if auth_token&.info.nil?
info = auth_token.info
info["email"] || info["nickname"] || info["name"]
end
# These three methods are designed to be overriden by child classes
def match_by_email
true
end
def primary_email_verified?(auth_token)
# Omniauth providers should only provide verified emails in the :info hash.
# This method allows additional checks to be added
true
end
def can_revoke?
true
end
def can_connect_existing_user?
true
end
def always_update_user_email?
false
end
def revoke(user, skip_remote: false)
association = UserAssociatedAccount.find_by(provider_name: name, user_id: user.id)
raise Discourse::NotFound if association.nil?
association.destroy!
true
end
def after_authenticate(auth_token, existing_account: nil)
# Try and find an association for this account
association = UserAssociatedAccount.find_or_initialize_by(provider_name: auth_token[:provider], provider_uid: auth_token[:uid])
# Reconnecting to existing account
if can_connect_existing_user? && existing_account && (association.user.nil? || existing_account.id != association.user_id)
association.user = existing_account
end
# Matching an account by email
if primary_email_verified?(auth_token) &&
match_by_email &&
association.user.nil? &&
(user = User.find_by_email(auth_token.dig(:info, :email)))
UserAssociatedAccount.where(user: user, provider_name: auth_token[:provider]).destroy_all # Destroy existing associations for the new user
association.user = user
end
# Update all the metadata in the association:
association.info = auth_token[:info] || {}
association.credentials = auth_token[:credentials] || {}
association.extra = auth_token[:extra] || {}
association.last_used = Time.zone.now
# Save to the DB. Do this even if we don't have a user - it might be linked up later in after_create_account
association.save!
# Update the user's email address from the auth payload
if association.user &&
(always_update_user_email? || association.user.email.end_with?(".invalid")) &&
primary_email_verified?(auth_token) &&
(email = auth_token.dig(:info, :email)) &&
(email != association.user.email) &&
!User.find_by_email(email)
association.user.update!(email: email)
end
# Update avatar/profile
retrieve_avatar(association.user, association.info["image"])
retrieve_profile(association.user, association.info)
# Build the Auth::Result object
result = Auth::Result.new
info = auth_token[:info]
result.email = info[:email]
result.name = (info[:first_name] && info[:last_name]) ? "#{info[:first_name]} #{info[:last_name]}" : info[:name]
if result.name.present? && result.name == result.email
# Some IDPs send the email address in the name parameter (e.g. Auth0 with default configuration)
# We add some generic protection here, so that users don't accidently make their email addresses public
result.name = nil
end
result.username = info[:nickname]
result.email_valid = primary_email_verified?(auth_token) if result.email
result.extra_data = {
provider: auth_token[:provider],
uid: auth_token[:uid]
}
result.user = association.user
result
end
def after_create_account(user, auth)
auth_token = auth[:extra_data]
association = UserAssociatedAccount.find_or_initialize_by(provider_name: auth_token[:provider], provider_uid: auth_token[:uid])
association.user = user
association.save!
retrieve_avatar(user, association.info["image"])
retrieve_profile(user, association.info)
end
def retrieve_avatar(user, url)
return unless user && url
return if user.user_avatar.try(:custom_upload_id).present?
Jobs.enqueue(:download_avatar_from_url, url: url, user_id: user.id, override_gravatar: false)
end
def retrieve_profile(user, info)
return unless user
bio = info["description"]
location = info["location"]
if bio || location
profile = user.user_profile
profile.bio_raw = bio unless profile.bio_raw.present?
profile.location = location unless profile.location.present?
profile.save
end
end
end