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require 'resolv'
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require 'uri'
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module Foreman::Controller::SmartProxyAuth
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module ClassMethods
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def add_puppetmaster_filters(actions)
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skip_before_filter :require_login, :only => actions
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skip_before_filter :require_ssl, :only => actions
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skip_before_filter :authorize, :only => actions
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skip_before_filter :verify_authenticity_token, :only => actions
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skip_before_filter :set_taxonomy, :only => actions
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skip_before_filter :session_expiry, :update_activity_time, :only => actions
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before_filter :require_puppetmaster_or_login, :only => actions
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end
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end
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def self.included(base)
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base.extend(ClassMethods)
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end
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# Permits registered puppetmasters or a user with permission
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def require_puppetmaster_or_login
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if !Setting[:restrict_registered_puppetmasters] or auth_smart_proxy(SmartProxy.puppet_proxies, Setting[:require_ssl_puppetmasters])
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set_admin_user
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return true
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end
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require_login
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unless User.current
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render_403
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return false
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end
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authorize
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end
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# Filter requests to only permit from hosts with a registered smart proxy
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# Uses rDNS of the request to match proxy hostnames
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def auth_smart_proxy(proxies = SmartProxy.all, require_cert = true)
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request_hosts = nil
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if request.ssl?
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if cn = request.env[Setting[:ssl_client_cn_env]]
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if request.env[Setting[:ssl_client_verify_env]] == 'SUCCESS'
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request_hosts = [cn]
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else
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logger.warn "SSL cert for #{cn} has not been verified - request from #{request.ip}"
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end
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elsif require_cert
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logger.warn "No SSL cert with CN supplied - request from #{request.ip}"
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else
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request_hosts = Resolv.new.getnames(request.ip)
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end
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elsif SETTINGS[:require_ssl]
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logger.warn "SSL is required - request from #{request.ip}"
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else
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request_hosts = Resolv.new.getnames(request.ip)
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end
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return false unless request_hosts
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logger.debug("Verifying request from #{request_hosts} against #{proxies.map {|p| URI.parse(p.url).host}.inspect}")
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unless proxies.detect { |p| request_hosts.include? URI.parse(p.url).host }
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logger.warn "No smart proxy server found on #{request_hosts.inspect}"
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return false
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end
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true
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end
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end
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