Class: OpenTox::Policies

Inherits:
Object show all
Defined in:
lib/policy.rb

Overview

Module for policy-processing Class Policies corresponds to <policies> container of an xml-policy-file

See Also:

  • http://www.opentox.org/dev/apis/api-1.2/AA for opentox API specs

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initializePolicies


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# File 'lib/policy.rb', line 12

def initialize()
  @policies = {}
end

Instance Attribute Details

#nameObject

Hash for policy objects see Policy


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# File 'lib/policy.rb', line 10

def name
  @name
end

#policiesObject

Hash for policy objects see Policy


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# File 'lib/policy.rb', line 10

def policies
  @policies
end

Instance Method Details

#drop_policiesObject

drop all policies in a policies instance


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# File 'lib/policy.rb', line 30

def drop_policies
  @policies.each do |name, policy|
    drop_policy(name)
  end
  return true
end

#drop_policy(name) ⇒ Boolean

drop a specific policy in a policies instance


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# File 'lib/policy.rb', line 25

def drop_policy(name)
  return true if @policies.delete(name)
end

#get_xml_template(template) ⇒ Object


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# File 'lib/policy.rb', line 81

def get_xml_template(template)
  File.read(File.join(File.dirname(__FILE__), "templates/#{template}.xml"))
end

#load_default_policy(user, uri, group = "member") ⇒ Object

Loads a default policy template in a policies instance


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# File 'lib/policy.rb', line 56

def load_default_policy(user, uri, group="member")
  template = case user
    when "guest", "anonymous" then "default_guest_policy"
    else "default_policy"
  end
  xml = get_xml_template(template)
  self.load_xml(xml)
  datestring = Time.now.strftime("%Y-%m-%d-%H-%M-%S-x") + rand(1000).to_s

  @policies["policy_user"].name = "policy_user_#{user}_#{datestring}"
  @policies["policy_user"].rule.uri = uri
  @policies["policy_user"].rule.name = "rule_user_#{user}_#{datestring}"
  @policies["policy_user"].subject.name = "subject_user_#{user}_#{datestring}"
  @policies["policy_user"].subject.value = "uid=#{user},ou=people,dc=opentox,dc=org"
  @policies["policy_user"].subject_group = "subjects_user_#{user}_#{datestring}"

  @policies["policy_group"].name = "policy_group_#{group}_#{datestring}"
  @policies["policy_group"].rule.uri = uri
  @policies["policy_group"].rule.name = "rule_group_#{group}_#{datestring}"
  @policies["policy_group"].subject.name = "subject_group_#{group}_#{datestring}"
  @policies["policy_group"].subject.value = "cn=#{group},ou=groups,dc=opentox,dc=org"
  @policies["policy_group"].subject_group = "subjects_#{group}_#{datestring}"
  return true
end

#load_xml(xml) ⇒ Object

loads a xml template


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# File 'lib/policy.rb', line 86

def load_xml(xml)
  rexml = REXML::Document.new(xml)
  rexml.elements.each("Policies/Policy") do |pol|    #Policies
    policy_name = pol.attributes["name"]
    new_policy(policy_name)
    #@policies[policy_name] = Policy.new(policy_name)
    rexml.elements.each("Policies/Policy[@name='#{policy_name}']/Rule") do |r|    #Rules
      rule_name = r.attributes["name"]
      uri = rexml.elements["Policies/Policy[@name='#{policy_name}']/Rule[@name='#{rule_name}']/ResourceName"].attributes["name"]
      @policies[policy_name].rule.name = rule_name
      @policies[policy_name].uri = uri
      rexml.elements.each("Policies/Policy[@name='#{policy_name}']/Rule[@name='#{rule_name}']/AttributeValuePair") do |attribute_pairs|
        action=nil; value=nil;
        attribute_pairs.each_element do |elem|
          action = elem.attributes["name"] if elem.attributes["name"]
          value = elem.text if elem.text
        end
        if action and value
          case action
          when "GET"
            @policies[policy_name].rule.get    = value
          when "POST"
            @policies[policy_name].rule.post   = value
          when "PUT"
            @policies[policy_name].rule.put    = value
          when "DELETE"
            @policies[policy_name].rule.delete = value
          end
        end
      end
    end
    rexml.elements.each("Policies/Policy[@name='#{policy_name}']/Subjects") do |subjects|    #Subjects
      @policies[policy_name].subject_group = subjects.attributes["name"]
      rexml.elements.each("Policies/Policy[@name='#{policy_name}']/Subjects[@name='#{@policies[policy_name].subject_group}']/Subject") do |s|    #Subject
        subject_name  = s.attributes["name"]
        subject_type  = s.attributes["type"]
        subject_value = rexml.elements["Policies/Policy[@name='#{policy_name}']/Subjects[@name='#{@policies[policy_name].subject_group}']/Subject[@name='#{subject_name}']/AttributeValuePair/Value"].text
        if subject_name and subject_type and subject_value
          @policies[policy_name].subject.name = subject_name
          @policies[policy_name].type = subject_type
          @policies[policy_name].value = subject_value
        end
      end
    end
  end
end

#namesArray

list all policy names in a policies instance


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# File 'lib/policy.rb', line 44

def names
  out = []
  @policies.each do |name, policy|
    out << name
  end
  return out
end

#new_policy(name) ⇒ Object

create new policy instance with name


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# File 'lib/policy.rb', line 18

def new_policy(name)
  @policies[name] = Policy.new(name)
end

#to_xmlObject

generates xml from policies instance


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# File 'lib/policy.rb', line 134

def to_xml
  doc = REXML::Document.new()
  doc <<  REXML::DocType.new("Policies", "PUBLIC  \"-//Sun Java System Access Manager7.1 2006Q3\n Admin CLI DTD//EN\" \"jar://com/sun/identity/policy/policyAdmin.dtd\"")
  doc.add_element(REXML::Element.new("Policies"))

  @policies.each do |name, pol|
    policy = REXML::Element.new("Policy")
    policy.attributes["name"] = pol.name
    policy.attributes["referralPolicy"] = false
    policy.attributes["active"] = true
    rule = @policies[name].rule
    out_rule = REXML::Element.new("Rule")
    out_rule.attributes["name"] = rule.name
    servicename = REXML::Element.new("ServiceName")
    servicename.attributes["name"]="iPlanetAMWebAgentService"
    out_rule.add_element(servicename)
    rescourcename = REXML::Element.new("ResourceName")
    rescourcename.attributes["name"] = rule.uri
    out_rule.add_element(rescourcename)

    ["get","post","delete","put"].each do |act|
      if rule.method(act).call
        attribute = REXML::Element.new("Attribute")
        attribute.attributes["name"] = act.upcase
        attributevaluepair = REXML::Element.new("AttributeValuePair")
        attributevaluepair.add_element(attribute)
        attributevalue = REXML::Element.new("Value")
        attributevaluepair.add_element(attributevalue)
        attributevalue.add_text REXML::Text.new(rule.method(act).call)
        out_rule.add_element(attributevaluepair)
      end
    end
    policy.add_element(out_rule)

    subjects = REXML::Element.new("Subjects")
    subjects.attributes["name"] = pol.subject_group
    subjects.attributes["description"] = ""
    subj = @policies[name].subject.name
    subject = REXML::Element.new("Subject")
    subject.attributes["name"] = pol.subject.name
    subject.attributes["type"] = pol.subject.type
    subject.attributes["includeType"] = "inclusive"
    attributevaluepair = REXML::Element.new("AttributeValuePair")
    attribute = REXML::Element.new("Attribute")
    attribute.attributes["name"] = "Values"
    attributevaluepair.add_element(attribute)
    attributevalue = REXML::Element.new("Value")
    attributevalue.add_text REXML::Text.new(pol.subject.value)
    attributevaluepair.add_element(attributevalue)
    subject.add_element(attributevaluepair)
    subjects.add_element(subject)
    policy.add_element(subjects)
    doc.root.add_element(policy)
  end
  out = ""
  doc.write(out, 2)
  return out
end

#urisArray


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# File 'lib/policy.rb', line 38

def uris
  @policies.collect{ |k,v| v.uri }.flatten.uniq
end