Class: OpenNebula::Acl

Inherits:
PoolElement show all
Defined in:
lib/opennebula/acl.rb

Overview

Abstract rules of the type USER RESOURCE RIGHTS which are:

USER      -> #<num>
             @<num>
             ALL
RESOURCE  -> + separated list and "/{#,@,%}<num>|ALL"
             VM
             HOST
             NET
             IMAGE
             USER
             TEMPLATE
             GROUP
             DATASTORE
             CLUSTER
             DOCUMENT
             ZONE
             SECGROUP
             VDC
             VROUTER
             MARKETPLACE
             MARKETPLACEAPP
             VMGROUP
RIGHTS    -> + separated list
             USE
             MANAGE
             ADMIN
             CREATE

Constant Summary collapse

USERS =
{
    "UID"           => 0x100000000,
    "GID"           => 0x200000000,
    "ALL"           => 0x400000000,
    "CLUSTER"       => 0x800000000
}
RESOURCES =
{
    "VM"            =>     0x1000000000,
    "HOST"          =>     0x2000000000,
    "NET"           =>     0x4000000000,
    "IMAGE"         =>     0x8000000000,
    "USER"          =>    0x10000000000,
    "TEMPLATE"      =>    0x20000000000,
    "GROUP"         =>    0x40000000000,
    "DATASTORE"     =>   0x100000000000,
    "CLUSTER"       =>   0x200000000000,
    "DOCUMENT"      =>   0x400000000000,
    "ZONE"          =>   0x800000000000,
    "SECGROUP"      =>  0x1000000000000,
    "VDC"           =>  0x2000000000000,
    "VROUTER"       =>  0x4000000000000,
    "MARKETPLACE"   =>  0x8000000000000,
    "MARKETPLACEAPP"=> 0x10000000000000,
    "VMGROUP"       => 0x20000000000000,
    "VNTEMPLATE"    => 0x40000000000000
}
RIGHTS =
{
    "USE"           => 0x1,  # Auth. to use an object
    "MANAGE"        => 0x2,  # Auth. to perform management actions
    "ADMIN"         => 0x4,  # Auth. to perform administrative actions
    "CREATE"        => 0x8   # Auth. to create an object
}

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from PoolElement

#id, #name, new_with_id, #replace, #to_str

Methods inherited from XMLElement

#[], #add_element, #attr, #delete_element, #each, #each_xpath, #element_xml, #has_elements?, #initialize_xml, #name, #retrieve_elements, #retrieve_xmlelements, #set_content, #template_like_str, #template_str, #template_xml, #text, #to_hash, #to_xml, #xml_nil?

Constructor Details

#initialize(xml, client) ⇒ Acl

Constructor

Parameters:

  • xml (String)

    must be an xml built with build_xml

  • client (Client)

    represents an XML-RPC connection



91
92
93
# File 'lib/opennebula/acl.rb', line 91

def initialize(xml, client)
    super(xml,client)
end

Class Method Details

.build_xml(pe_id = nil) ⇒ String

Creates an empty XML representation. It contains the id, if it is specified.

Parameters:

  • pe_id (Integer) (defaults to: nil)

    rule ID

Returns:

  • (String)

    an empty XML representation



101
102
103
104
105
106
107
108
109
# File 'lib/opennebula/acl.rb', line 101

def self.build_xml(pe_id=nil)
    if pe_id
        acl_xml = "<ACL><ID>#{pe_id}</ID></ACL>"
    else
        acl_xml = "<ACL></ACL>"
    end

    XMLElement.build_xml(acl_xml,'ACL')
end

.parse_rule(rule_str) ⇒ Array

Parses a rule string, e.g. “#5 HOST+VM/@12 INFO+CREATE+DELETE”

or OpenNebula::Error objects

Parameters:

  • rule_str (String)

    an ACL rule in string format

Returns:

  • (Array)

    an Array containing 3 strings (hex 64b numbers),



163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
# File 'lib/opennebula/acl.rb', line 163

def self.parse_rule(rule_str)
    ret = Array.new

    rule_str = rule_str.split(" ")

    if rule_str.length != 3 && rule_str.length != 4
        return OpenNebula::Error.new(
            "String needs three components: User, Resource, Rights")
    end

    ret << parse_users(rule_str[0])
    ret << parse_resources(rule_str[1])
    ret << parse_rights(rule_str[2])

    if rule_str.length > 3
        ret << parse_zone(rule_str[3])
    end

    errors=ret.map do |arg|
        if OpenNebula.is_error?(arg)
            arg.message
        else
            nil
        end
    end

    errors.compact!

    if errors.length>0
        return OpenNebula::Error.new(errors.join(', '))
    end

    return ret
end

Instance Method Details

#allocate(user, resource, rights, zone = nil) ⇒ nil, OpenNebula::Error

Creates a new ACL rule.

Parameters:

  • user (String)

    A string containing a hex number, e.g. 0x100000001

  • resource (String)

    A string containing a hex number, e.g. 0x2100000001

  • rights (String)

    A string containing a hex number, e.g. 0x10

  • zone (String) (defaults to: nil)

    A string containing a hex number, e.g. 0x100000001

Returns:



124
125
126
127
128
129
130
131
132
133
134
135
136
137
# File 'lib/opennebula/acl.rb', line 124

def allocate(user, resource, rights, zone=nil)
    if !zone.nil?
        return super( AclPool::ACL_POOL_METHODS[:addrule],
                    user,
                    resource,
                    rights,
                    zone )
    else
        return super( AclPool::ACL_POOL_METHODS[:addrule],
                    user,
                    resource,
                    rights)
    end
end

#deletenil, OpenNebula::Error

Deletes the Acl rule

Returns:



143
144
145
# File 'lib/opennebula/acl.rb', line 143

def delete()
    super(AclPool::ACL_POOL_METHODS[:delrule])
end

#infonil Also known as: info!

Does nothing, individual ACL rules info can’t be retrieved from OpenNebula

Returns:

  • (nil)

    nil



151
152
153
# File 'lib/opennebula/acl.rb', line 151

def info()
    return nil
end