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require 'tempfile'
class SSHServer
def initialize(sshd_host, sshd_port, authorized_keys = nil)
@sshd_host = sshd_host
@sshd_port = sshd_port
@authorized_keys = authorized_keys
@pid = nil
end
def start
@sshd_key_file = Tempfile.new("ssh_host_rsa_key", $config["TMPDIR"])
# 'hack' to prevent ssh-keygen from prompting to overwrite the file
File.delete(@sshd_key_file.path)
cmd_helper(['ssh-keygen', '-t', 'rsa', '-N', "", '-f', "#{@sshd_key_file.path}"])
@sshd_key_file.close
sshd_config =<<EOF
Port #{@sshd_port}
ListenAddress #{@sshd_host}
UsePrivilegeSeparation no
HostKey #{@sshd_key_file.path}
Pidfile #{$config['TMPDIR']}/ssh.pid
EOF
@sshd_config_file = Tempfile.new("sshd_config", $config["TMPDIR"])
@sshd_config_file.write(sshd_config)
if @authorized_keys
@authorized_keys_file = Tempfile.new("authorized_keys", $config['TMPDIR'])
@authorized_keys_file.write(@authorized_keys)
@authorized_keys_file.close
@sshd_config_file.write("AuthorizedKeysFile #{@authorized_keys_file.path}")
end
@sshd_config_file.close
cmd = ["/usr/sbin/sshd", "-4", "-f", @sshd_config_file.path, "-D"]
job = IO.popen(cmd)
@pid = job.pid
end
def stop
File.delete("#{@sshd_key_file.path}.pub")
File.delete("#{$config['TMPDIR']}/ssh.pid")
begin
Process.kill("TERM", @pid)
rescue
# noop
end
end
def active?
begin
ret = Process.kill(0, @pid)
rescue Errno::ESRCH => e
if e.message == "No such process"
return false
else
raise e
end
end
assert_equal(1, ret, "This shouldn't happen")
return true
end
end
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