Module: Fog::OpenStack

Extended by:
Provider
Defined in:
lib/fog/openstack/core.rb

Defined Under Namespace

Modules: Errors

Class Method Summary collapse

Methods included from Provider

[], extended, service, services

Class Method Details

.authenticate(options, connection_options = {}) ⇒ Object 



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# File 'lib/fog/openstack/core.rb', line 53

def self.authenticate(options, connection_options = {})
  case options[:openstack_auth_uri].path
  when /v1(\.\d+)?/
    authenticate_v1(options, connection_options)
  else
    authenticate_v2(options, connection_options)
  end
end

.authenticate_v1(options, connection_options = {}) ⇒ Object

legacy v1.0 style auth



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# File 'lib/fog/openstack/core.rb', line 63

def self.authenticate_v1(options, connection_options = {})
  uri = options[:openstack_auth_uri]
  connection = Fog::Connection.new(uri.to_s, false, connection_options)
  @openstack_api_key  = options[:openstack_api_key]
  @openstack_username = options[:openstack_username]

  response = connection.request({
    :expects  => [200, 204],
    :headers  => {
      'X-Auth-Key'  => @openstack_api_key,
      'X-Auth-User' => @openstack_username
    },
    :method   => 'GET',
    :path     =>  (uri.path and not uri.path.empty?) ? uri.path : 'v1.0'
  })

  return {
    :token => response.headers['X-Auth-Token'],
    :server_management_url => response.headers['X-Server-Management-Url'] || response.headers['X-Storage-Url'],
    :identity_public_endpoint => response.headers['X-Keystone']
  }
end

.authenticate_v2(options, connection_options = {}) ⇒ Object

Keystone Style Auth



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# File 'lib/fog/openstack/core.rb', line 87

def self.authenticate_v2(options, connection_options = {})
  uri                   = options[:openstack_auth_uri]
  tenant_name           = options[:openstack_tenant]
  service_type          = options[:openstack_service_type]
  service_name          = options[:openstack_service_name]
  identity_service_type = options[:openstack_identity_service_type]
  endpoint_type         = (options[:openstack_endpoint_type] || 'publicURL').to_s
  openstack_region      = options[:openstack_region]


  body = retrieve_tokens_v2(options, connection_options)
  service = get_service(body, service_type, service_name)

  options[:unscoped_token] = body['access']['token']['id']

  unless service
    unless tenant_name
      response = Fog::Connection.new(
        "#{uri.scheme}://#{uri.host}:#{uri.port}/v2.0/tenants", false, connection_options).request({
        :expects => [200, 204],
        :headers => {'Content-Type' => 'application/json',
                     'Accept' => 'application/json',
                     'X-Auth-Token' => body['access']['token']['id']},
        :method  => 'GET'
      })

      body = Fog::JSON.decode(response.body)
      if body['tenants'].empty?
        raise Fog::Errors::NotFound.new('No Tenant Found')
      else
        options[:openstack_tenant] = body['tenants'].first['name']
      end
    end

    body = retrieve_tokens_v2(options, connection_options)
    service = get_service(body, service_type, service_name)

  end

  service['endpoints'] = service['endpoints'].select do |endpoint|
    endpoint['region'] == openstack_region
  end if openstack_region

  if service['endpoints'].empty?
    raise Fog::Errors::NotFound.new("No endpoints available for region '#{openstack_region}'")
  end if openstack_region

  unless service
    available = body['access']['serviceCatalog'].map { |endpoint|
      endpoint['type']
    }.sort.join ', '

    missing = service_type.join ', '

    message = "Could not find service #{missing}.  Have #{available}"

    raise Fog::Errors::NotFound, message
  end

  if service['endpoints'].count > 1
    regions = service["endpoints"].map{ |e| e['region'] }.uniq.join(',')
    raise Fog::Errors::NotFound.new("Multiple regions available choose one of these '#{regions}'")
  end

  identity_service = get_service(body, identity_service_type) if identity_service_type
  tenant = body['access']['token']['tenant']
  user = body['access']['user']

  management_url = service['endpoints'].detect{|s| s[endpoint_type]}[endpoint_type]
  identity_url   = identity_service['endpoints'].detect{|s| s['publicURL']}['publicURL'] if identity_service

  {
    :user                     => user,
    :tenant                   => tenant,
    :identity_public_endpoint => identity_url,
    :server_management_url    => management_url,
    :token                    => body['access']['token']['id'],
    :expires                  => body['access']['token']['expires'],
    :current_user_id          => body['access']['user']['id'],
    :unscoped_token           => options[:unscoped_token]
  }

end

.escape(str, extra_exclude_chars = '') ⇒ Object

CGI.escape, but without special treatment on spaces



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# File 'lib/fog/openstack/core.rb', line 242

def self.escape(str,extra_exclude_chars = '')
  str.gsub(/([^a-zA-Z0-9_.-#{extra_exclude_chars}]+)/) do
    '%' + $1.unpack('H2' * $1.bytesize).join('%').upcase
  end
end

.get_service(body, service_type = [], service_name = nil) ⇒ Object 



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# File 'lib/fog/openstack/core.rb', line 171

def self.get_service(body, service_type=[], service_name=nil)
  body['access']['serviceCatalog'].detect do |s|
    if service_name.nil? or service_name.empty?
      service_type.include?(s['type'])
    else
      service_type.include?(s['type']) and s['name'] == service_name
    end
  end
end

.get_supported_version(supported_versions, uri, auth_token, connection_options = {}) ⇒ Object 



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# File 'lib/fog/openstack/core.rb', line 214

def self.get_supported_version(supported_versions, uri, auth_token, connection_options = {})
  connection = Fog::Connection.new("#{uri.scheme}://#{uri.host}:#{uri.port}", false, connection_options)
  response = connection.request({
    :expects => [200, 204, 300],
    :headers => {'Content-Type' => 'application/json',
                 'Accept' => 'application/json',
                 'X-Auth-Token' => auth_token},
    :method  => 'GET'
  })

  body = Fog::JSON.decode(response.body)
  version = nil
  unless body['versions'].empty?
    supported_version = body['versions'].detect do |x|
      x["id"].match(supported_versions) &&
      (x["status"] == "CURRENT" || x["status"] == "SUPPORTED")
    end
    version = supported_version["id"] if supported_version
  end
  if version.nil?
    raise Fog::OpenStack::Errors::ServiceUnavailable.new(
              "OpenStack service only supports API versions #{supported_versions.inspect}")
  end

  version
end

.retrieve_tokens_v2(options, connection_options = {}) ⇒ Object 



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# File 'lib/fog/openstack/core.rb', line 181

def self.retrieve_tokens_v2(options, connection_options = {})
  api_key     = options[:openstack_api_key].to_s
  username    = options[:openstack_username].to_s
  tenant_name = options[:openstack_tenant].to_s
  auth_token  = options[:openstack_auth_token] || options[:unscoped_token]
  uri         = options[:openstack_auth_uri]

  connection = Fog::Connection.new(uri.to_s, false, connection_options)
  request_body = {:auth => Hash.new}

  if auth_token
    request_body[:auth][:token] = {
      :id => auth_token
    }
  else
    request_body[:auth][:passwordCredentials] = {
      :username => username,
      :password => api_key
    }
  end
  request_body[:auth][:tenantName] = tenant_name if tenant_name

  response = connection.request({
    :expects  => [200, 204],
    :headers  => {'Content-Type' => 'application/json'},
    :body     => Fog::JSON.encode(request_body),
    :method   => 'POST',
    :path     => (uri.path and not uri.path.empty?) ? uri.path : 'v2.0'
  })

  Fog::JSON.decode(response.body)
end