#
# Author:: Daniel DeLeo (<dan@chef.io>)
# Copyright:: Copyright (c) 2010-2018 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 File.expand_path(File.join(__dir__, "..", "..", "spec_helper"))

require "mixlib/authentication"
require "mixlib/authentication/http_authentication_request"
require "ostruct" unless defined?(OpenStruct)
require "pp" unless defined?(PP)

describe Mixlib::Authentication::HTTPAuthenticationRequest do
  before do
    request = Struct.new(:env, :method, :path)

    @timestamp_iso8601 = "2009-01-01T12:00:00Z"
    @x_ops_content_hash = "DFteJZPVv6WKdQmMqZUQUumUyRs="
    @user_id = "spec-user"
    @http_x_ops_lines = [
      "jVHrNniWzpbez/eGWjFnO6lINRIuKOg40ZTIQudcFe47Z9e/HvrszfVXlKG4",
      "NMzYZgyooSvU85qkIUmKuCqgG2AIlvYa2Q/2ctrMhoaHhLOCWWoqYNMaEqPc",
      "3tKHE+CfvP+WuPdWk4jv4wpIkAz6ZLxToxcGhXmZbXpk56YTmqgBW2cbbw4O",
      "IWPZDHSiPcw//AYNgW1CCDptt+UFuaFYbtqZegcBd2n/jzcWODA7zL4KWEUy",
      "9q4rlh/+1tBReg60QdsmDRsw/cdO1GZrKtuCwbuD4+nbRdVBKv72rqHX9cu0",
      "utju9jzczCyB+sSAQWrxSsXB/b8vV2qs0l4VD2ML+w=="]
    @merb_headers = {
      # These are used by signatureverification. An arbitrary sampling of non-HTTP_*
      # headers are in here to exercise that code path.
      "HTTP_HOST" => "127.0.0.1",
      "HTTP_X_OPS_SIGN" => "version=1.0",
      "HTTP_X_OPS_REQUESTID" => "127.0.0.1 1258566194.85386",
      "HTTP_X_OPS_TIMESTAMP" => @timestamp_iso8601,
      "HTTP_X_OPS_CONTENT_HASH" => @x_ops_content_hash,
      "HTTP_X_OPS_USERID" => @user_id,
      "HTTP_X_OPS_AUTHORIZATION_1" => @http_x_ops_lines[0],
      "HTTP_X_OPS_AUTHORIZATION_2" => @http_x_ops_lines[1],
      "HTTP_X_OPS_AUTHORIZATION_3" => @http_x_ops_lines[2],
      "HTTP_X_OPS_AUTHORIZATION_4" => @http_x_ops_lines[3],
      "HTTP_X_OPS_AUTHORIZATION_5" => @http_x_ops_lines[4],
      "HTTP_X_OPS_AUTHORIZATION_6" => @http_x_ops_lines[5],

      # Random sampling
      "REMOTE_ADDR" => "127.0.0.1",
      "PATH_INFO" => "/organizations/local-test-org/cookbooks",
      "REQUEST_PATH" => "/organizations/local-test-org/cookbooks",
      "CONTENT_TYPE" => "multipart/form-data; boundary=----RubyMultipartClient6792ZZZZZ",
      "CONTENT_LENGTH" => "394",
    }
    @request = request.new(@merb_headers, "POST", "/nodes")
    @http_authentication_request = Mixlib::Authentication::HTTPAuthenticationRequest.new(@request)
  end

  it "normalizes the headers to lowercase symbols" do
    expected = { host: "127.0.0.1",
                 x_ops_sign: "version=1.0",
                 x_ops_requestid: "127.0.0.1 1258566194.85386",
                 x_ops_timestamp: "2009-01-01T12:00:00Z",
                 x_ops_content_hash: "DFteJZPVv6WKdQmMqZUQUumUyRs=",
                 x_ops_userid: "spec-user",
                 x_ops_authorization_1: "jVHrNniWzpbez/eGWjFnO6lINRIuKOg40ZTIQudcFe47Z9e/HvrszfVXlKG4",
                 x_ops_authorization_2: "NMzYZgyooSvU85qkIUmKuCqgG2AIlvYa2Q/2ctrMhoaHhLOCWWoqYNMaEqPc",
                 x_ops_authorization_3: "3tKHE+CfvP+WuPdWk4jv4wpIkAz6ZLxToxcGhXmZbXpk56YTmqgBW2cbbw4O",
                 x_ops_authorization_4: "IWPZDHSiPcw//AYNgW1CCDptt+UFuaFYbtqZegcBd2n/jzcWODA7zL4KWEUy",
                 x_ops_authorization_5: "9q4rlh/+1tBReg60QdsmDRsw/cdO1GZrKtuCwbuD4+nbRdVBKv72rqHX9cu0",
                 x_ops_authorization_6: "utju9jzczCyB+sSAQWrxSsXB/b8vV2qs0l4VD2ML+w==" }
    expect(@http_authentication_request.headers).to eq(expected)
  end

  it "raises an error when not all required headers are given" do
    @merb_headers.delete("HTTP_X_OPS_SIGN")
    exception = Mixlib::Authentication::MissingAuthenticationHeader
    expect { Mixlib::Authentication::HTTPAuthenticationRequest.new(@request) }.to raise_error(exception)
  end

  it "extracts the path from the request" do
    expect(@http_authentication_request.path).to eq("/nodes")
  end

  it "extracts the request method from the request" do
    expect(@http_authentication_request.http_method).to eq("POST")
  end

  it "extracts the signing description from the request headers" do
    expect(@http_authentication_request.signing_description).to eq("version=1.0")
  end

  it "extracts the user_id from the request headers" do
    expect(@http_authentication_request.user_id).to eq("spec-user")
  end

  it "extracts the timestamp from the request headers" do
    expect(@http_authentication_request.timestamp).to eq("2009-01-01T12:00:00Z")
  end

  it "extracts the host from the request headers" do
    expect(@http_authentication_request.host).to eq("127.0.0.1")
  end

  it "extracts the content hash from the request headers" do
    expect(@http_authentication_request.content_hash).to eq("DFteJZPVv6WKdQmMqZUQUumUyRs=")
  end

  it "rebuilds the request signature from the headers" do
    expected = <<~SIG
      jVHrNniWzpbez/eGWjFnO6lINRIuKOg40ZTIQudcFe47Z9e/HvrszfVXlKG4
      NMzYZgyooSvU85qkIUmKuCqgG2AIlvYa2Q/2ctrMhoaHhLOCWWoqYNMaEqPc
      3tKHE+CfvP+WuPdWk4jv4wpIkAz6ZLxToxcGhXmZbXpk56YTmqgBW2cbbw4O
      IWPZDHSiPcw//AYNgW1CCDptt+UFuaFYbtqZegcBd2n/jzcWODA7zL4KWEUy
      9q4rlh/+1tBReg60QdsmDRsw/cdO1GZrKtuCwbuD4+nbRdVBKv72rqHX9cu0
      utju9jzczCyB+sSAQWrxSsXB/b8vV2qs0l4VD2ML+w==
    SIG
    expect(@http_authentication_request.request_signature).to eq(expected.chomp)
  end

  it "defaults to server api version 0" do
    expect(@http_authentication_request.server_api_version).to eq("0")
  end

end
