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module Api
module V2
class HostsController < V2::BaseController
wrap_parameters :host, :include => (Host::Base.attribute_names + ['image_file', 'is_owned_by', 'overwrite', 'progress_report_id'])

include Api::Version2
include Api::TaxonomyScope
include Foreman::Controller::SmartProxyAuth

before_filter :find_optional_nested_object, :except => [:facts]
before_filter :find_resource, :except => [:index, :create, :facts]
before_filter :permissions_check, :only => %w{power boot puppetrun}

add_smart_proxy_filters :facts, :features => FactImporter.fact_features

api :GET, "/hosts/", N_("List all hosts")
api :GET, "/hostgroups/:hostgroup_id/hosts", N_("List all hosts for a host group")
api :GET, "/locations/:location_id/hosts", N_("List hosts per location")
api :GET, "/organizations/:organization_id/hosts", N_("List hosts per organization")
api :GET, "/environments/:environment_id/hosts", N_("List hosts per environment")
param :hostgroup_id, String, :desc => N_("ID of host group")
param :location_id, String, :desc => N_("ID of location")
param :organization_id, String, :desc => N_("ID of organization")
param :environment_id, String, :desc => N_("ID of environment")
param_group :search_and_pagination, ::Api::V2::BaseController

def index
@hosts = resource_scope_for_index.includes([ :host_statuses, :compute_resource, :hostgroup, :operatingsystem, :interfaces])
# SQL optimizations queries
@last_report_ids = Report.where(:host_id => @hosts.map(&:id)).group(:host_id).maximum(:id)
@last_reports = Report.where(:id => @last_report_ids.values)
end

api :GET, "/hosts/:id/", N_("Show a host")
param :id, :identifier_dottable, :required => true

def show
end

def_param_group :host do
param :host, Hash, :required => true, :action_aware => true do
param :name, String, :required => true
param :location_id, :number, :required => true, :desc => N_("required if locations are enabled") if SETTINGS[:locations_enabled]
param :organization_id, :number, :required => true, :desc => N_("required if organizations are enabled") if SETTINGS[:organizations_enabled]
param :environment_id, String, :desc => N_("required if host is managed and value is not inherited from host group")
param :ip, String, :desc => N_("not required if using a subnet with DHCP proxy")
param :mac, String, :desc => N_("required for managed host that is bare metal, not required if it's a virtual machine")
param :architecture_id, :number, :desc => N_("required if host is managed and value is not inherited from host group")
param :domain_id, :number, :desc => N_("required if host is managed and value is not inherited from host group")
param :realm_id, :number
param :puppet_proxy_id, :number
param :puppet_class_ids, Array
param :operatingsystem_id, String, :desc => N_("required if host is managed and value is not inherited from host group")
param :medium_id, String, :desc => N_("required if not imaged based provisioning and host is managed and value is not inherited from host group")
param :ptable_id, :number, :desc => N_("required if host is managed and custom partition has not been defined")
param :subnet_id, :number, :desc => N_("required if host is managed and value is not inherited from host group")
param :compute_resource_id, :number, :desc => N_("nil means host is bare metal")
param :root_pass, String, :desc => N_("required if host is managed and value is not inherited from host group or default password in settings")
param :model_id, :number
param :hostgroup_id, :number
param :owner_id, :number
param :owner_type, Host::Base::OWNER_TYPES, :desc => N_("Host's owner type")
param :puppet_ca_proxy_id, :number
param :image_id, :number
param :host_parameters_attributes, Array
param :build, :bool
param :enabled, :bool
param :provision_method, String
param :managed, :bool, :desc => N_("True/False flag whether a host is managed or unmanaged. Note: this value also determines whether several parameters are required or not")
param :progress_report_id, String, :desc => N_("UUID to track orchestration tasks status, GET /api/orchestration/:UUID/tasks")
param :comment, String, :desc => N_("Additional information about this host")
param :capabilities, String
param :compute_profile_id, :number
param :interfaces_attributes, Array, :desc => N_("Host's network interfaces.") do
param_group :interface_attributes, ::Api::V2::InterfacesController
end
param :compute_attributes, Hash, :desc => N_("Additional compute resource specific attributes.")
end
end

api :POST, "/hosts/", N_("Create a host")
param_group :host, :as => :create

def create
@host = Host.new(host_attributes(params[:host]))
@host.managed = true if (params[:host] && params[:host][:managed].nil?)
merge_interfaces(@host)

forward_request_url
process_response @host.save
rescue InterfaceTypeMapper::UnknownTypeExeption => e
render_error :custom_error, :status => :unprocessable_entity, :locals => { :message => e.to_s }
end

api :PUT, "/hosts/:id/", N_("Update a host")
param :id, :identifier, :required => true
param_group :host

def update
@host.attributes = host_attributes(params[:host], @host)
merge_interfaces(@host)

process_response @host.save
rescue InterfaceTypeMapper::UnknownTypeExeption => e
render_error :custom_error, :status => :unprocessable_entity, :locals => { :message => e.to_s }
end

api :DELETE, "/hosts/:id/", N_("Delete a host")
param :id, :identifier, :required => true

def destroy
process_response @host.destroy
end

api :GET, "/hosts/:id/status", N_("Get configuration status of host")
param :id, :identifier_dottable, :required => true
description <<-eos
Return value may either be one of the following:

* missing
* failed
* pending
* changed
* unchanged
* unreported
eos

def status
Foreman::Deprecation.api_deprecation_warning('The /status route is deprecated, please use the new /status/configuration instead')
render :json => { :status => @host.get_status(HostStatus::ConfigurationStatus).to_label }.to_json if @host
end

api :GET, "/hosts/:id/status/:type", N_("Get status of host")
param :id, :identifier_dottable, :required => true
param :type, [ HostStatus::Global ] + HostStatus.status_registry.to_a.map { |s| s.humanized_name }, :required => true, :desc => N_(<<-eos
status type, can be one of
* global
* configuration
* build
eos
)
description N_('Returns string representing a host status of a given type')
def get_status
case params[:type]
when 'global'
@status = @host.build_global_status
else
@status = @host.get_status(HostStatus.find_status_by_humanized_name(params[:type]))
end
end

api :GET, "/hosts/:id/vm_compute_attributes", N_("Get vm attributes of host")
param :id, :identifier_dottable, :required => true
description <<-eos
Return the host's compute attributes that can be used to create a clone of this VM
eos

def vm_compute_attributes
render :json => {} unless @host
attrs = @host.vm_compute_attributes || {}
safe_attrs = {}
attrs.each_pair do |k,v|
# clean up the compute attributes to be suitable for output
if v.is_a?(Proc)
safe_attrs[k] = v.call
elsif v.respond_to?('parent')
# don't add folders, causes recursive json issues
else
safe_attrs[k] = v
end
end
render :json => safe_attrs
end

api :PUT, "/hosts/:id/puppetrun", N_("Force a Puppet agent run on the host")
param :id, :identifier_dottable, :required => true

def puppetrun
return deny_access unless Setting[:puppetrun]
process_response @host.puppetrun!
end

api :PUT, "/hosts/:id/disassociate", N_("Disassociate the host from a VM")
param :id, :identifier_dottable, :required => true
def disassociate
@host.disassociate!
render 'api/v2/hosts/show'
end

api :PUT, "/hosts/:id/power", N_("Run a power operation on host")
param :id, :identifier_dottable, :required => true
param :power_action, String, :required => true, :desc => N_("power action, valid actions are (on/start), (off/stop), (soft/reboot), (cycle/reset), (state/status)")

def power
valid_actions = PowerManager::SUPPORTED_ACTIONS
if valid_actions.include? params[:power_action]
render :json => { :power => @host.power.send(params[:power_action]) }, :status => :ok
else
render :json => { :error => _("Unknown power action: available methods are %s") % valid_actions.join(', ') }, :status => :unprocessable_entity
end
end

api :PUT, "/hosts/:id/boot", N_("Boot host from specified device")
param :id, :identifier_dottable, :required => true
param :device, String, :required => true, :desc => N_("boot device, valid devices are disk, cdrom, pxe, bios")

def boot
valid_devices = ProxyAPI::BMC::SUPPORTED_BOOT_DEVICES
if valid_devices.include? params[:device]
render :json => { :boot => @host.ipmi_boot(params[:device]) }, :status => :ok
else
render :json => { :error => _("Unknown device: available devices are %s") % valid_devices.join(', ') }, :status => :unprocessable_entity
end
end

api :POST, "/hosts/facts", N_("Upload facts for a host, creating the host if required")
param :name, String, :required => true, :desc => N_("hostname of the host")
param :facts, Hash, :required => true, :desc => N_("hash containing the facts for the host")
param :certname, String, :desc => N_("optional: certname of the host")
param :type, String, :desc => N_("optional: the STI type of host to create")

def facts
@host, state = detect_host_type.import_host_and_facts params[:name], params[:facts], params[:certname], detected_proxy.try(:id)
process_response state
rescue ::Foreman::Exception => e
render_message(e.to_s, :status => :unprocessable_entity)
end

private

def merge_interfaces(host)
merge = InterfaceMerge.new
merge.run(host.interfaces, host.compute_resource.try(:compute_profile_for, host.compute_profile_id))
end

def host_attributes(params, host = nil)
return {} if params.nil?

params = params.deep_clone
if params[:interfaces_attributes]
# handle both hash and array styles of nested attributes
if params[:interfaces_attributes].is_a? Hash
params[:interfaces_attributes] = params[:interfaces_attributes].values
end
# map interface types
params[:interfaces_attributes] = params[:interfaces_attributes].map do |nic_attr|
interface_attributes(nic_attr)
end
end
params = host.apply_inherited_attributes(params) if host
params
end

def interface_attributes(params)
params[:type] = InterfaceTypeMapper.map(params[:type])
params
end

def action_permission
case params[:action]
when 'puppetrun'
:puppetrun
when 'power'
:power
when 'boot'
:ipmi_boot
when 'console'
:console
when 'disassociate'
:edit
when 'vm_compute_attributes', 'get_status'
:view
else
super
end
end

# this is required for template generation (such as pxelinux) which is not done via a web request
def forward_request_url
@host.request_url = request.host_with_port if @host.respond_to?(:request_url)
end

def detect_host_type
return Host::Managed if params[:type].blank?
if params[:type].constantize.new.is_a?(Host::Base)
logger.debug "Creating host of type: #{params[:type]}"
return params[:type].constantize
else
raise ::Foreman::Exception.new(N_("Invalid type for host creation via facts: %s"), params[:type])
end
rescue => e
raise ::Foreman::Exception.new(N_("A problem occurred when detecting host type: %s"), e.message)
end

def permissions_check
permission = "#{params[:action]}_hosts".to_sym
deny_access unless Host.authorized(permission, Host).find(@host.id)
end

def resource_class
Host::Managed
end

def allowed_nested_id
%w(hostgroup_id location_id organization_id environment_id)
end
end
end
end

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