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| | #!/usr/bin/env ruby
# -*- encoding: binary -*-
# Copyright (C) 2012-2020 all contributors <cmogstored-public@yhbt.net>
# License: GPL-3.0+ <https://www.gnu.org/licenses/gpl-3.0.txt>
require 'test/test_helper'
require 'net/http'
class TestInherit < Test::Unit::TestCase
def setup
@tmpdir = Dir.mktmpdir('cmogstored-inherit-test')
@to_close = []
@host = TEST_HOST
@srv = TCPServer.new(@host, 0)
@to_close << @srv
@port = @srv.addr[1]
@err = Tempfile.new("stderr")
@pid = nil
@exec_fds = {}
end
# Ruby 1.8 did not have the close_on_exec= method, but it
# also defaulted to close_on_exec=false (same as POSIX)
# 2.0.0 will be the first release with close_on_exec=true
# by default, but 1.9 already added the close_on_exec= method
def maybe_cloexec(io, val)
if io.respond_to?(:close_on_exec=)
io.close_on_exec = val
@exec_fds[io.fileno] = io
end
end
# FD inheritance is explicit in Ruby 2.0.0
def exec(*cmd)
cmd << @exec_fds if @exec_fds.size > 0
Process.exec(*cmd)
end
def teardown
if @pid
Process.kill(:QUIT, @pid) rescue nil
_, status = Process.waitpid2(@pid)
@err.rewind
$stderr.write(@err.read)
assert status.success?, status.inspect
end
@to_close.each { |io| io.close unless io.closed? }
FileUtils.rm_rf(@tmpdir)
end
def test_inherit_bad
cmd = [ "cmogstored", "--docroot=#@tmpdir", "--httplisten=#@host:#@port",
"--maxconns=100" ]
pid = fork do
r, w = IO.pipe
maybe_cloexec(r, false)
maybe_cloexec(w, false)
$stderr.reopen(@err)
ENV["CMOGSTORED_FD"] = "#{r.fileno}"
exec(*cmd)
end
_, status = Process.waitpid2(pid)
assert ! status.success?, status.inspect
@err.rewind
assert_match(/getsockname.*failed/, @err.read)
end
def test_inherit
cmd = [ "cmogstored", "--docroot=#@tmpdir", "--httplisten=#@host:#@port",
"--maxconns=100" ]
vg = ENV["VALGRIND"] and cmd = vg.split(/\s+/).concat(cmd)
drop = TCPServer.new(@host, 0)
@to_close << drop
@pid = fork do
maybe_cloexec(drop, false)
maybe_cloexec(@srv, false)
ENV["CMOGSTORED_FD"] = "#{@srv.fileno},#{drop.fileno}"
exec(*cmd)
end
# just ensure HTTP works after being inherited
Net::HTTP.start(@host, @port) do |http|
[ Net::HTTP::Get, Net::HTTP::Head ].each do |meth|
resp = http.request(meth.new("/"))
assert_kind_of Net::HTTPOK, resp
end
end
# ensure inherited FDs get closed if they're unused
drop_port = drop.addr[1]
# still works since drop is open in _this_ process
c = TCPSocket.new(@host, drop_port)
@to_close << c
# drop is no longer valid after this:
drop.close
assert_raises(Errno::ECONNREFUSED) { TCPSocket.new(@host, drop_port) }
end
def test_inherit_fake
cmd = [ "cmogstored", "--docroot=#@tmpdir", "--httplisten=#@host:#@port",
"--maxconns=100" ]
@srv.close
pid = fork do
ENV["CMOGSTORED_FD"] = "666"
$stderr.reopen(@err)
exec(*cmd)
end
_, status = Process.waitpid2(pid)
assert ! status.success?, status.inspect
end
def test_inherit_bogus
cmd = [ "cmogstored", "--docroot=#@tmpdir", "--httplisten=#@host:#@port",
"--maxconns=100" ]
pid = fork do
maybe_cloexec(@srv, false)
ENV["CMOGSTORED_FD"] = "#{@srv.fileno};"
$stderr.reopen(@err)
exec(*cmd)
end
_, status = Process.waitpid2(pid)
@err.rewind
assert_match(/invalid byte: 59$/, @err.read)
assert ! status.success?, status.inspect
end
def test_inherit_high
cmd = [ "cmogstored", "--docroot=#@tmpdir", "--httplisten=#@host:#@port",
"--maxconns=100" ]
pid = fork do
maybe_cloexec(@srv, false)
fd = 0xffffffffffffffffffffffffff.to_s
ENV["CMOGSTORED_FD"] = "#{@srv.fileno},#{fd}"
$stderr.reopen(@err)
exec(*cmd)
end
_, status = Process.waitpid2(pid)
assert ! status.success?, status.inspect
@err.rewind
assert_match(/failed to parse/, @err.read)
end
def test_inherit_systemd
# disabled test on old Rubies: https://bugs.ruby-lang.org/issues/11336
# [ruby-core:69895] [Bug #11336] fixed by r51576
return unless RUBY_VERSION.to_f >= 2.3
mgmt = TCPServer.new(@host, 0)
@to_close << mgmt
mport = mgmt.addr[1]
cmd = %W(cmogstored --docroot=#@tmpdir --httplisten=#@host:#@port
--mgmtlisten=#@host:#{mport} --maxconns=100)
cmd << { 3 => mgmt.fileno, 4 => @srv.fileno }
@pid = fork do
ENV['LISTEN_PID'] = "#$$"
ENV['LISTEN_FDS'] = '2'
exec(*cmd)
end
# just ensure HTTP works after being inherited
Net::HTTP.start(@host, @port) do |http|
[ Net::HTTP::Get, Net::HTTP::Head ].each do |meth|
resp = http.request(meth.new("/"))
assert_kind_of Net::HTTPOK, resp
end
end
# still works since drop is open in _this_ process
c = TCPSocket.new(@host, mport)
@to_close << c
c.write "hello\n"
assert_match(/ERROR: unknown command/, c.gets)
end
end
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