Class: OpenTox::Policies

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

Overview

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

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

#initialize ⇒ Policies

Returns a new instance of Policies.



11
12
13
 
# File 'lib/policy.rb', line 11

def initialize()
  @policies = {}
end

Instance Attribute Details

#name ⇒ Object

Returns the value of attribute name.



9
10
11
 
# File 'lib/policy.rb', line 9

def name
  @name
end

#policies ⇒ Object

Returns the value of attribute policies.



9
10
11
 
# File 'lib/policy.rb', line 9

def policies
  @policies
end

Instance Method Details

#drop_policies ⇒ Object

drop all policies in a policies instance



29
30
31
32
33
34
 
# File 'lib/policy.rb', line 29

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

Parameters:

  • name (String) —

    of the policy

Returns:

  • (Boolean) 


24
25
26
 
# File 'lib/policy.rb', line 24

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

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

loads a default policy template in policies instance



51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
 
# File 'lib/policy.rb', line 51

def load_default_policy(user, uri, group="member")    
  template = case user
    when "guest", "anonymous" then "default_guest_policy"
    else "default_policy"     
  end
  xml = File.read(File.join(File.dirname(__FILE__), "templates/#{template}.xml"))
  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"].rules["rule_user"].uri = uri
  @policies["policy_user"].rules["rule_user"].name = "rule_user_#{user}_#{datestring}"
  @policies["policy_user"].subjects["subject_user"].name = "subject_user_#{user}_#{datestring}"
  @policies["policy_user"].subjects["subject_user"].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"].rules["rule_group"].uri = uri
  @policies["policy_group"].rules["rule_group"].name = "rule_group_#{group}_#{datestring}"
  @policies["policy_group"].subjects["subject_group"].name = "subject_group_#{group}_#{datestring}"
  @policies["policy_group"].subjects["subject_group"].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



77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
 
# File 'lib/policy.rb', line 77

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].rules[rule_name] = @policies[policy_name].new_rule(rule_name, 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].rules[rule_name].get    = value
          when "POST"
            @policies[policy_name].rules[rule_name].post   = value
          when "PUT"
            @policies[policy_name].rules[rule_name].put    = value
          when "DELETE"    
            @policies[policy_name].rules[rule_name].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
        @policies[policy_name].new_subject(subject_name, subject_type, subject_value) if subject_name and subject_type and subject_value
      end
    end      
  end    
end

#names ⇒ Object

drop all policies in a policies instance



42
43
44
45
46
47
48
 
# File 'lib/policy.rb', line 42

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

#new_policy(name) ⇒ Object

create new policy instance with name

Parameters:

  • name (String) —

    of the policy



17
18
19
 
# File 'lib/policy.rb', line 17

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

#to_xml ⇒ Object

generates xml from policies instance



120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
 
# File 'lib/policy.rb', line 120

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
    @policies[name].rules.each do |r,rl|
      rule = @policies[name].rules[r]
      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)
    end      

    subjects = REXML::Element.new("Subjects")
    subjects.attributes["name"] = pol.subject_group
    subjects.attributes["description"] = ""
    @policies[name].subjects.each do |subj, subjs|
      subject = REXML::Element.new("Subject")
      subject.attributes["name"] = pol.subjects[subj].name
      subject.attributes["type"] = pol.subjects[subj].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.subjects[subj].value)
      attributevaluepair.add_element(attributevalue)
      subject.add_element(attributevaluepair)
      subjects.add_element(subject)
    end
    policy.add_element(subjects)
    doc.root.add_element(policy)
  end    
  out = ""
  doc.write(out, 2)
  return out
end

#uris ⇒ Array

Returns set of arrays affected by policies.

Returns:

  • (Array) —

    set of arrays affected by policies



37
38
39
 
# File 'lib/policy.rb', line 37

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