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require_relative 'common'
require 'net/ssh/buffer'
require 'net/ssh'
require 'net/ssh/proxy/command'
require 'timeout'
require 'tempfile'
class TestChannel < NetSSHTest
include IntegrationTestHelpers
def localhost
'localhost'
end
def user
'net_ssh_1'
end
def ssh_start_params(options = {})
[localhost, user, { keys: @key_id_rsa }.merge(options)]
end
def setup_ssh_env(&block)
tmpdir do |dir|
@key_id_rsa = "#{dir}/id_rsa"
sh "rm -rf #{@key_id_rsa} #{@key_id_rsa}.pub"
sh "ssh-keygen -q -f #{@key_id_rsa} -t rsa -N ''"
set_authorized_key(user,"#{@key_id_rsa}.pub")
yield
end
end
def ssh_exec(ssh, command, channel_success_handler, &block)
ssh.open_channel do |channel|
channel.exec(command) do |_ch, success|
raise "could not execute command: #{command.inspect}" unless success
channel_success_handler.call
channel.on_data do |ch2, data|
yield(ch2, :stdout, data)
end
channel.on_extended_data do |ch2, _type, data|
yield(ch2, :stderr, data)
end
end
end
end
def test_transport_close_before_channel_close_should_raise
setup_ssh_env do
proxy = Net::SSH::Proxy::Command.new("/bin/nc localhost 22")
res = nil
Net::SSH.start(*ssh_start_params(proxy: proxy)) do |ssh|
channel_success_handler = lambda do
sleep(0.1)
system("killall /bin/nc")
end
channel = ssh_exec(ssh, "echo Begin ; sleep 100 ; echo End", channel_success_handler) do |ch, _type, data|
ch[:result] ||= ""
ch[:result] << data
end
assert_raises(IOError) { channel.wait }
res = channel[:result]
assert_equal(res, "Begin\n")
end
assert_equal(res, "Begin\n")
end
end
def test_transport_close_after_channel_close_should_not_raise
setup_ssh_env do
proxy = Net::SSH::Proxy::Command.new("/bin/nc localhost 22")
res = nil
Net::SSH.start(*ssh_start_params(proxy: proxy)) do |ssh|
channel_success_handler = lambda do
sleep(0.1)
system("killall /bin/nc")
end
channel = ssh_exec(ssh, "echo Hello!", channel_success_handler) do |ch, _type, data|
ch[:result] ||= ""
ch[:result] << data
end
channel.wait
res = channel[:result]
assert_equal(res, "Hello!\n")
end
assert_equal(res, "Hello!\n")
end
end
def test_transport_close_should_remote_close_channels
setup_ssh_env do
Net::SSH.start(*ssh_start_params) do |ssh|
channel = ssh.open_channel do
ssh.transport.socket.close
end
remote_closed = nil
begin
channel.wait
rescue StandardError
remote_closed = channel.remote_closed?
end
assert_equal remote_closed, true
end
end
end
def test_channel_should_set_environment_variables_on_remote
setup_ssh_env do
start_sshd_7_or_later(config: 'AcceptEnv *') do |_pid, port|
Timeout.timeout(4) do
begin
# We have our own sshd, give it a chance to come up before
# listening.
proxy = Net::SSH::Proxy::Command.new("/bin/nc localhost #{port}")
res = nil
Net::SSH.start(*ssh_start_params(port: port, proxy: proxy, set_env: { foo: 'bar', baz: 'whale will' })) do |ssh|
channel_success_handler = lambda do
sleep(0.1)
system("killall /bin/nc")
end
channel = ssh_exec(ssh, "echo $foo; echo $baz", channel_success_handler) do |ch, _type, data|
ch[:result] ||= ""
ch[:result] << data
end
channel.wait
res = channel[:result]
assert_equal(res, "bar\nwhale will\n")
end
assert_equal(res, "bar\nwhale will\n")
rescue SocketError, Errno::ECONNREFUSED, Errno::EHOSTUNREACH, Net::SSH::Proxy::ConnectError
sleep 0.25
retry
end
end
end
end
end
end
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