From da080c472fc415b0ce918f4dd4a1ab143bb1bca4 Mon Sep 17 00:00:00 2001
From: Philip Hands <phil@hands.com>
Date: Mon, 14 Mar 2016 15:36:16 +0100
Subject: rough attempt to grab the good cucumber bits from recent tails

---
 features/support/helpers/sshd_helper.rb | 67 +++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 features/support/helpers/sshd_helper.rb

(limited to 'features/support/helpers/sshd_helper.rb')

diff --git a/features/support/helpers/sshd_helper.rb b/features/support/helpers/sshd_helper.rb
new file mode 100644
index 00000000..2e0069c0
--- /dev/null
+++ b/features/support/helpers/sshd_helper.rb
@@ -0,0 +1,67 @@
+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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