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#--
# Author:: Daniel DeLeo (<dan@chef.io>)
# Author:: John Keiser (<jkeiser@chef.io>)
# Copyright:: Copyright 2013-2017, Chef Software Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
require_relative "../json_compat"
require_relative "../log"
class Chef
class HTTP
# Middleware that takes an HTTP response, parses it as JSON if possible.
class JSONOutput
attr_accessor :raw_output
attr_accessor :inflate_json_class
def initialize(opts = {})
@raw_output = opts[:raw_output]
@inflate_json_class = opts[:inflate_json_class]
end
def handle_request(method, url, headers = {}, data = false)
# Ideally this should always set Accept to application/json, but
# Chef::REST is sometimes used to make non-JSON requests, so it sets
# Accept to the desired value before middlewares get called.
headers["Accept"] ||= "application/json"
[method, url, headers, data]
end
def handle_response(http_response, rest_request, return_value)
# temporary hack, skip processing if return_value is false
# needed to keep conditional get stuff working correctly.
return [http_response, rest_request, return_value] if return_value == false
if http_response["content-type"] =~ /json/
if http_response.body.nil?
return_value = nil
elsif raw_output
return_value = http_response.body.to_s
else
if inflate_json_class
return_value = Chef::JSONCompat.from_json(http_response.body.chomp)
else
return_value = Chef::JSONCompat.parse(http_response.body.chomp)
end
end
[http_response, rest_request, return_value]
else
Chef::Log.trace("Expected JSON response, but got content-type '#{http_response["content-type"]}'")
if http_response.body
Chef::Log.trace("Response body contains:\n#{http_response.body.length < 256 ? http_response.body : http_response.body[0..256] + " [...truncated...]"}")
end
[http_response, rest_request, http_response.body.to_s]
end
end
def handle_stream_complete(http_response, rest_request, return_value)
[http_response, rest_request, return_value]
end
def stream_response_handler(response)
nil
end
end
end
end
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