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path: root/app/models/sip_account.rb
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# encoding: UTF-8

class SipAccount < ActiveRecord::Base
  include ActionView::Helpers::TextHelper

  attr_accessible :auth_name, :caller_name, :password, :voicemail_pin, 
                  :tenant_id, :call_waiting, :clir, :clip_no_screening,
                  :clip, :description, :callforward_rules_act_per_sip_account,
                  :hotdeskable, :gs_node_id

  # Associations:
  #
  belongs_to :sip_accountable, :polymorphic => true, :touch => true
  
  has_many :phone_sip_accounts, :uniq => true
  has_many :phones, :through => :phone_sip_accounts
  
  has_many :phone_numbers, :as => :phone_numberable, :dependent => :destroy
  has_many :call_forwards, :through => :phone_numbers

  belongs_to :tenant
  belongs_to :sip_domain

  has_many :softkeys, :dependent => :destroy

  has_many :voicemail_messages, :foreign_key => 'username', :primary_key => 'auth_name'

  has_many :call_histories, :as => :call_historyable, :dependent => :destroy

  has_one :voicemail_setting, :class_name => "VoicemailSetting", :primary_key => 'auth_name', :foreign_key => 'username', :dependent => :destroy

  belongs_to :gs_node

  # Delegations:
  #
  delegate :host, :to => :sip_domain, :allow_nil => true
  delegate :realm, :to => :sip_domain, :allow_nil => true

  # Validations:
  #
  validates_presence_of :caller_name
  validates_presence_of :sip_accountable
  validates_presence_of :tenant
  validates_presence_of :sip_domain
  
  validate_sip_password :password
  
  validates_format_of :voicemail_pin, :with => /[0-9]+/,
    :allow_nil => true, :allow_blank => true
  
  validates_uniqueness_of :auth_name, :scope => :sip_domain_id

  # Before and after hooks:
  # 
  before_save :save_value_of_to_s
  after_save :create_voicemail_setting, :if => :'voicemail_setting == nil'
  before_validation :find_and_set_tenant_id
  before_validation :set_sip_domain_id
  before_validation :convert_umlauts_in_caller_name
  before_destroy :remove_sip_accounts_or_logout_phones

  # Sync other nodes when this is a cluster.
  #
  validates_presence_of :uuid
  validates_uniqueness_of :uuid

  after_create { self.create_on_other_gs_nodes('sip_accountable', self.sip_accountable.try(:uuid)) }
  after_destroy :destroy_on_other_gs_nodes
  after_update { self.update_on_other_gs_nodes('sip_accountable', self.sip_accountable.try(:uuid)) }

  after_update :log_out_phone_if_not_local

  def to_s
    truncate((self.caller_name || "SipAccount ID #{self.id}"), :length => GsParameter.get('TO_S_MAX_CALLER_NAME_LENGTH')) + " (#{truncate(self.auth_name, :length => GsParameter.get('TO_S_MAX_LENGTH_OF_AUTH_NAME'))}@...#{self.host.split(/\./)[2,3].to_a.join('.') if self.host })"
  end
  
  def call_forwarding_toggle( call_forwarding_service, to_voicemail = nil )
    if ! self.phone_numbers.first
      errors.add(:base, "You must provide at least one phone number")
    end

    service_id = CallForwardCase.where(:value => call_forwarding_service).first.id

    call_forwarding_master = self.phone_numbers.first.call_forwards.where(:call_forward_case_id => service_id).order(:active).all(:conditions => 'source IS NULL OR source = ""').first
    if ! call_forwarding_master
      errors.add(:base, "No call forwarding entries found that could be toggled")
      return false
    end

    if call_forwarding_master.active
      call_forwarding_master.active = false
    else
      if call_forwarding_service = 'assistant' && call_forwarding_master.call_forwardable_type == 'HuntGroup' && call_forwarding_master.call_forwardable
        if call_forwarding_master.call_forwardable.hunt_group_members.where(:active => true).count > 0
          call_forwarding_master.active = true
        else
          call_forwarding_master.active = false
        end
      end
    end

    self.phone_numbers.each do |phone_number|
      call_forwarding = phone_number.call_forwards.where(:call_forward_case_id => service_id).order(:active).all(:conditions => 'source IS NULL OR source = ""').first
      if ! call_forwarding
        call_forwarding = CallForward.new()
        call_forwarding.phone_number_id = phone_number.id
      end

      if to_voicemail == nil 
        to_voicemail = call_forwarding_master.to_voicemail
      end

      call_forwarding.call_forward_case_id = call_forwarding_master.call_forward_case_id
      call_forwarding.timeout = call_forwarding_master.timeout
      call_forwarding.destination = call_forwarding_master.destination
      call_forwarding.source = call_forwarding_master.source
      call_forwarding.depth = call_forwarding_master.depth
      call_forwarding.active = call_forwarding_master.active
      call_forwarding.to_voicemail = to_voicemail

      if ! call_forwarding.save
        call_forwarding.errors.messages.each_with_index do |(error_key, error_message), index|
          errors.add(error_key, "number: #{phone_number}: #{error_message}")
        end
      end
    end

    if errors.empty? 
      return call_forwarding_master
    end

    return false
  end

  def registration
    return SipRegistration.where(:sip_user => self.auth_name).first
  end

  def call( phone_number )
    require 'freeswitch_event'
    return FreeswitchAPI.execute(
      'originate', 
      "{origination_uuid=#{UUID.new.generate},origination_caller_id_number='#{phone_number}',origination_caller_id_name='Call'}user/#{self.auth_name} #{phone_number}", 
      true
    );
  end
  

  private
      
  def save_value_of_to_s
    self.value_of_to_s = self.to_s
  end
  
  def find_and_set_tenant_id
      if self.new_record? and self.tenant_id != nil
        return        
      else
        tenant = case self.sip_accountable_type
          when 'Tenant'    ; sip_accountable
          when 'UserGroup' ; sip_accountable.tenant
          when 'User'      ; sip_accountable.try(:current_tenant) || sip_accountable.try(:tenants).try(:last)
          else nil
        end
        self.tenant_id = tenant.id if tenant != nil
      end
  end
  
  def set_sip_domain_id
    self.sip_domain_id = self.tenant.try(:sip_domain_id)
  end
  
  def convert_umlauts_in_caller_name
    if !self.caller_name.blank?
      self.caller_name = self.caller_name.sub(/ä/,'ae').
                              sub(/Ä/,'Ae').
                              sub(/ü/,'ue').
                              sub(/Ü/,'Ue').
                              sub(/ö/,'oe').
                              sub(/Ö/,'Oe').
                              sub(/ß/,'ss')

      self.caller_name = self.caller_name.gsub(/[^a-zA-Z0-9\-\,\:\. ]/,'_')
    end
  end

  # Make sure that a tenant phone goes back to the tenant and doesn't
  # get deleted with this user.
  #
  def remove_sip_accounts_or_logout_phones
    self.phones.each do |phone|
      if phone.sip_accounts.where(:sip_accountable_type => 'Tenant').count > 0
        phone.user_logout
      else
        PhoneSipAccount.delete_all(:sip_account_id => self.id)
      end
    end
    self.reload
  end

  # log out phone if sip_account is not on this node
  def log_out_phone_if_not_local
    if self.gs_node_id && ! GsNode.where(:ip_address => GsParameter.get('HOMEBASE_IP_ADDRESS'), :id => self.gs_node_id).first
      self.phones.each do |phone|
        phone.user_logout;
      end
    end
  end

  def create_voicemail_setting
    voicemail_setting = VoicemailSetting.new()
    voicemail_setting.username = self.auth_name
    voicemail_setting.domain = self.sip_domain.try(:host)
    voicemail_setting.password = self.voicemail_pin
    voicemail_setting.notify = true
    voicemail_setting.attachment = true
    voicemail_setting.mark_read = true
    voicemail_setting.purge = false
    voicemail_setting.save
  end
end