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# frozen_string_literal: true
# Checks the authorization against the census for Terrassa.
require "digest/md5"
# This class performs a check against the official census database in order
# to verify the citizen's residence.
class CensusAuthorizationHandler < Decidim::AuthorizationHandler
include ActionView::Helpers::SanitizeHelper
include Virtus::Multiparams
attribute :document_number, String
attribute :document_type, Symbol
attribute :date_of_birth, Date
validates :date_of_birth, presence: true
validates :document_type, inclusion: { in: %i(dni nie passport community_dni) }, presence: true
validates :document_number, format: { with: /\A[A-z0-9]*\z/ }, presence: true
validate :document_type_valid
validate :over_16
def census_document_types
%i(dni nie passport community_dni).map do |type|
[I18n.t(type, scope: "decidim.census_authorization_handler.document_types"), type]
end
end
def unique_id
Digest::MD5.hexdigest(
"#{document_number}-#{Rails.application.secrets.secret_key_base}"
)
end
def metadata
super.merge(district: district) if district.present?
end
private
def district
response.xpath("//districte").text.to_s
end
def sanitized_document_type
case document_type&.to_sym
when :dni
1
when :passport
2
when :nie
3
when :community_dni
4
end
end
def sanitized_date_of_birth
@sanitized_date_of_birth ||= date_of_birth&.strftime("%d-%m-%Y")
end
def document_type_valid
return nil if response.blank?
errors.add(:document_number, I18n.t("census_authorization_handler.invalid_document")) unless response.xpath("//existeix").text == "true"
end
def response
return nil if document_number.blank? ||
document_type.blank? ||
date_of_birth.blank?
return @response if defined?(@response)
response ||= Faraday.post Rails.application.secrets.census_url do |request|
request.headers["Content-Type"] = "text/xml"
request.body = request_body
end
@response ||= Nokogiri::XML(response.body).remove_namespaces!
end
def request_body
@request_body ||= <<EOS
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:pad="http://padro.serveis.terrassa.cat/">
<soapenv:Header/>
<soapenv:Body>
<pad:existeixAmbDistricte>
<tipusDocument>#{sanitized_document_type}</tipusDocument>
<numDocument>#{sanitize document_number&.upcase}</numDocument>
<dataNaixement>#{sanitized_date_of_birth}</dataNaixement>
<usuari>#{census_username}</usuari>
<clau>#{census_password}</clau>
</pad:existeixAmbDistricte>
</soapenv:Body>
</soapenv:Envelope>
EOS
end
def over_16
errors.add(:date_of_birth, I18n.t("census_authorization_handler.age_under_16")) unless age && age >= 16
end
def age
return nil if date_of_birth.blank?
now = Date.current
extra_year = (now.month > date_of_birth.month) || (
now.month == date_of_birth.month && now.day >= date_of_birth.day
)
now.year - date_of_birth.year - (extra_year ? 0 : 1)
end
def census_username
Rails.application.secrets.census_username
end
def census_password
Rails.application.secrets.census_password
end
end
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