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#
# Author:: AJ Christensen (<aj@junglist.gen.nz>)
# Copyright:: Copyright 2008-2018, 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 "spec_helper"
require "ostruct"
describe Chef::Daemon do
let(:testuser) { "thisisausernamewhichshouldnotexist" }
let(:testgroup) { "thisisagroupnamewhichshouldnotexist" }
before do
if windows?
mock_struct = #Struct::Passwd.new(nil, nil, 111, 111)
mock_struct = OpenStruct.new(:uid => 2342, :gid => 2342)
allow(Etc).to receive(:getpwnam).and_return mock_struct
allow(Etc).to receive(:getgrnam).and_return mock_struct
# mock unimplemented methods
allow(Process).to receive(:initgroups).and_return nil
allow(Process::GID).to receive(:change_privilege).and_return 11
allow(Process::UID).to receive(:change_privilege).and_return 11
end
end
describe ".pid_file" do
describe "when the pid_file option has been set" do
before do
Chef::Config[:pid_file] = "/var/run/chef/chef-client.pid"
end
it "should return the supplied value" do
expect(Chef::Daemon.pid_file).to eql("/var/run/chef/chef-client.pid")
end
end
describe "without the pid_file option set" do
before do
Chef::Daemon.name = "chef-client"
end
it "should return a valued based on @name" do
expect(Chef::Daemon.pid_file).to eql("/tmp/chef-client.pid")
end
end
end
describe ".pid_from_file" do
before do
Chef::Config[:pid_file] = "/var/run/chef/chef-client.pid"
end
it "should suck the pid out of pid_file" do
expect(File).to receive(:read).with("/var/run/chef/chef-client.pid").and_return("1337")
Chef::Daemon.pid_from_file
end
end
describe ".change_privilege" do
before do
allow(Chef::Daemon).to receive(:_change_privilege)
allow(Chef::Application).to receive(:fatal!).and_return(true)
Chef::Config[:user] = testuser
allow(Dir).to receive(:chdir)
end
it "changes the working directory to root" do
expect(Dir).to receive(:chdir).with("/").and_return(0)
Chef::Daemon.change_privilege
end
describe "when the user and group options are supplied" do
before do
Chef::Config[:group] = testgroup
end
it "should log an appropriate info message" do
expect(Chef::Log).to receive(:info).with("About to change privilege to #{testuser}:#{testgroup}")
Chef::Daemon.change_privilege
end
it "should call _change_privilege with the user and group" do
expect(Chef::Daemon).to receive(:_change_privilege).with(testuser, testgroup)
Chef::Daemon.change_privilege
end
end
describe "when just the user option is supplied" do
it "should log an appropriate info message" do
expect(Chef::Log).to receive(:info).with("About to change privilege to #{testuser}")
Chef::Daemon.change_privilege
end
it "should call _change_privilege with just the user" do
expect(Chef::Daemon).to receive(:_change_privilege).with(testuser)
Chef::Daemon.change_privilege
end
end
end
describe "._change_privilege" do
before do
allow(Process).to receive(:euid).and_return(0)
allow(Process).to receive(:egid).and_return(0)
allow(Process::UID).to receive(:change_privilege).and_return(nil)
allow(Process::GID).to receive(:change_privilege).and_return(nil)
@pw_user = double("Struct::Passwd", :uid => 501)
@pw_group = double("Struct::Group", :gid => 20)
allow(Process).to receive(:initgroups).and_return(true)
allow(Etc).to receive(:getpwnam).and_return(@pw_user)
allow(Etc).to receive(:getgrnam).and_return(@pw_group)
end
describe "with sufficient privileges" do
before do
allow(Process).to receive(:euid).and_return(0)
allow(Process).to receive(:egid).and_return(0)
end
it "should initialize the supplemental group list" do
expect(Process).to receive(:initgroups).with(testuser, 20)
Chef::Daemon._change_privilege(testuser)
end
it "should attempt to change the process GID" do
expect(Process::GID).to receive(:change_privilege).with(20).and_return(20)
Chef::Daemon._change_privilege(testuser)
end
it "should attempt to change the process UID" do
expect(Process::UID).to receive(:change_privilege).with(501).and_return(501)
Chef::Daemon._change_privilege(testuser)
end
end
describe "with insufficient privileges" do
before do
allow(Process).to receive(:euid).and_return(999)
allow(Process).to receive(:egid).and_return(999)
end
after do
allow(Process).to receive(:euid).and_call_original
allow(Process).to receive(:egid).and_call_original
end
it "should log an appropriate error message and fail miserably" do
allow(Process).to receive(:initgroups).and_raise(Errno::EPERM)
error = "Operation not permitted"
if RUBY_PLATFORM.match("solaris2") || RUBY_PLATFORM.match("aix")
error = "Not owner"
end
expect(Chef::Application).to receive(:fatal!).with("Permission denied when trying to change 999:999 to 501:20. #{error}")
Chef::Daemon._change_privilege(testuser)
end
end
end
end
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