discourse/lib/auth/google_oauth2_authenticator.rb

91 lines
2.8 KiB
Ruby

class Auth::GoogleOAuth2Authenticator < Auth::Authenticator
def name
"google_oauth2"
end
def after_authenticate(auth_hash)
session_info = parse_hash(auth_hash)
google_hash = session_info[:google]
result = ::Auth::Result.new
result.email = session_info[:email]
result.email_valid = session_info[:email_valid]
result.name = session_info[:name]
result.extra_data = google_hash
user_info = ::GoogleUserInfo.find_by(google_user_id: google_hash[:google_user_id])
result.user = user_info.try(:user)
if !result.user && !result.email.blank? && result.email_valid
result.user = User.find_by_email(result.email)
if result.user
# we've matched an existing user to this login attempt...
if result.user.google_user_info && result.user.google_user_info.google_user_id != google_hash[:google_user_id]
# but the user has changed the google account used to log in...
if result.user.google_user_info.email != google_hash[:email]
# the user changed their email, go ahead and scrub the old record
result.user.google_user_info.destroy!
else
# same email address but different account? likely a takeover scenario
result.failed = true
result.failed_reason = I18n.t('errors.conflicting_google_user_id')
return result
end
end
::GoogleUserInfo.create({ user_id: result.user.id }.merge(google_hash))
end
end
result
end
def after_create_account(user, auth)
data = auth[:extra_data]
GoogleUserInfo.create({ user_id: user.id }.merge(data))
if auth[:email_valid].to_s == 'true' && data[:email]&.downcase == user.email
EmailToken.confirm(user.email_tokens.first.token)
user.set_automatic_groups
end
end
def register_middleware(omniauth)
# jwt encoding is causing auth to fail in quite a few conditions
# skipping
omniauth.provider :google_oauth2,
setup: lambda { |env|
strategy = env["omniauth.strategy"]
strategy.options[:client_id] = SiteSetting.google_oauth2_client_id
strategy.options[:client_secret] = SiteSetting.google_oauth2_client_secret
},
skip_jwt: true
end
protected
def parse_hash(hash)
extra = hash[:extra][:raw_info]
h = {}
h[:email] = hash[:info][:email]
h[:name] = hash[:info][:name]
h[:email_valid] = extra[:email_verified]
h[:google] = {
google_user_id: hash[:uid] || extra[:sub],
email: extra[:email],
first_name: extra[:given_name],
last_name: extra[:family_name],
gender: extra[:gender],
name: extra[:name],
link: extra[:hd],
profile_link: extra[:profile],
picture: extra[:picture]
}
h
end
end