Sha256: 1a8fe33a07fd3f1d471760d58d644fdd7758f013715f3d2bb960e676c304f10f
Contents?: true
Size: 1014 Bytes
Versions: 8
Compression:
Stored size: 1014 Bytes
Contents
# frozen_string_literal: true
module ShopifyApp
module AppProxyVerification
extend ActiveSupport::Concern
included do
skip_before_action :verify_authenticity_token, raise: false
before_action :verify_proxy_request
end
def verify_proxy_request
head(:forbidden) unless query_string_valid?(request.query_string)
end
private
def query_string_valid?(query_string)
query_hash = Rack::Utils.parse_query(query_string)
signature = query_hash.delete("signature")
return false if signature.nil?
ActiveSupport::SecurityUtils.secure_compare(
calculated_signature(query_hash),
signature,
)
end
def calculated_signature(query_hash_without_signature)
sorted_params = query_hash_without_signature.collect { |k, v| "#{k}=#{Array(v).join(",")}" }.sort.join
OpenSSL::HMAC.hexdigest(
OpenSSL::Digest.new("sha256"),
ShopifyApp.configuration.secret,
sorted_params,
)
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems