Sha256: 5c10a8833b6cfeeaf0fb82bae3557694faabf4af39aefa0ba6fbaf7eab9b22ed
Contents?: true
Size: 987 Bytes
Versions: 11
Compression:
Stored size: 987 Bytes
Contents
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
return head :unauthorized 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
11 entries across 11 versions & 1 rubygems