#!/usr/bin/python3 -cimport os, sys; os.execv(os.path.dirname(sys.argv[1]) + "/../common/pywrap", sys.argv)

#
# Copyright (C) 2022 Red Hat, Inc.
# SPDX-License-Identifier: LGPL-2.1-or-later


import testlib

HOST = "host.containers.internal"


@testlib.onlyImage("no cockpit/ws container on this image", "fedora-coreos")
@testlib.nondestructive
class TestWsBastionContainer(testlib.MachineCase):
    def setUp(self):
        super().setUp()
        # stop ws container from previous runs
        self.machine.stop_cockpit()
        # undo cockpit/ws install steps
        self.restore_file("/etc/systemd/system/cockpit.service")
        self.addCleanup(self.machine.execute, "podman rm -f --all")

    def approve_key(self, b, hostname):
        b.wait_visible("#hostkey-group")
        b.wait_in_text("#hostkey-message-1", f"You are connecting to {hostname} for the first time.")
        b.click("#login-button")

    def testPasswordLogin(self):
        m = self.machine
        b = self.browser
        m.execute("podman run -d --name cockpit-bastion -p 9090:9090 localhost/cockpit/ws")
        m.execute("until curl --fail --head -k https://localhost:9090/; do sleep 1; done", timeout=10)

        b.open("/", tls=True)

        b.wait_visible("#login")
        # should be pre-configured to RequireHost
        b.wait_not_visible("#option-group")
        b.wait_visible("#server-field")
        # LoginTitle from default-bastion.conf
        b.wait_text("#server-name", "Cockpit Bastion")
        # No branding by default
        b.wait_text("#brand", "")

        b.set_val("#login-user-input", "admin")
        b.set_val("#login-password-input", "foobar")

        # Requires a host
        b.click("#login-button")
        b.wait_text("#login-error-title", "Please specify the host to connect to")
        b.wait_not_visible("#login-error-message")
        # so connect to our own container host
        b.set_val("#server-field", HOST)
        b.set_val("#login-password-input", "foobar")
        # key is unknown
        b.click("#login-button")
        self.approve_key(b, HOST)

        b.wait_visible('#content')
        b.wait_text('#current-username', 'admin')
        # Our test VM only pre-installs -system and -networkmanager
        b.wait_in_text("#host-apps", "Overview")
        b.wait_in_text("#host-apps", "Networking")
        self.assertNotIn("Kernel dump", b.text("#host-apps"))
        # runs the ssh target's bridge (no beiboot)
        m.execute("pgrep -f /usr/bin/[c]ockpit-bridge")
        b.logout()

        # remembers the last host via URL, server field should be pre-filled
        self.assertEqual(b.eval_js("window.location.pathname"), f"/={HOST}/system")
        # this is only for Cockpit Client
        b.wait_not_visible("#recent-hosts")
        # second time SSH key is known
        b.try_login()
        b.wait_visible('#content')
        b.logout()

        # disable target bridge, should use beiboot
        m.execute("mount -o bind /dev/null /usr/bin/cockpit-bridge")
        self.addCleanup(m.execute, "umount /usr/bin/cockpit-bridge")
        b.try_login()
        b.wait_visible('#content')
        m.execute("pgrep -f '[p]ython3 -ic # cockpit-bridge'")
        # beiboot mode has extra included pages
        b.wait_in_text("#host-apps", "Overview")
        b.wait_in_text("#host-apps", "Networking")
        b.wait_in_text("#host-apps", "Kernel dump")
        b.wait_in_text("#host-apps", "SELinux")
        # but Storage and Applications are hidden due to failing manifest conditions
        self.assertNotIn("Storage", b.text("#host-apps"))
        self.assertNotIn("Applications", b.text("#host-apps"))
        b.logout()

    def testKnownHosts(self):
        m = self.machine
        b = self.browser

        m.execute(f"ssh-keyscan localhost | sed 's/^localhost/{HOST}/' > /root/known_hosts")
        self.addCleanup(m.execute, "rm /root/known_hosts")

        def check_login():
            m.execute("until curl --fail --head -k https://localhost:9090/; do sleep 1; done", timeout=10)
            b.open("/", tls=True)
            b.set_val("#login-user-input", "admin")
            b.set_val("#login-password-input", "foobar")
            b.set_val("#server-field", HOST)
            b.click("#login-button")
            b.wait_visible('#content')
            b.logout()
            m.execute("podman rm -f cockpit-bastion")

        # default location
        m.execute("podman run -d --name cockpit-bastion -p 9090:9090 "
                  "-v /root/known_hosts:/etc/ssh/ssh_known_hosts:ro,Z "
                  "localhost/cockpit/ws")
        check_login()

        # custom location
        m.execute("podman run -d --name cockpit-bastion -p 9090:9090 "
                  "-v /root/known_hosts:/known_hosts:ro,Z "
                  "-e COCKPIT_SSH_KNOWN_HOSTS_FILE=/known_hosts "
                  "localhost/cockpit/ws")
        check_login()

    def testCustomConf(self):
        m = self.machine
        b = self.browser

        # custom cockpit.conf and pretend we are Fedora CoreOS/RHEL
        self.write_file("/root/cockpit.conf", """[WebService]
            LoginTitle = My Walden
""")
        m.execute("cp /etc/os-release /root; "
                  "podman run -d --name cockpit-bastion -p 9090:9090 "
                  "-v /root/cockpit.conf:/etc/cockpit/cockpit.conf:ro,Z "
                  "-v /root/os-release:/etc/os-release:ro,Z "
                  "localhost/cockpit/ws")
        m.execute("until curl --fail --head -k https://localhost:9090/; do sleep 1; done", timeout=10)

        b.open("/", tls=True)

        b.wait_visible("#login")
        b.wait_text("#server-name", "My Walden")
        # custom conf does not have RequireHost
        b.wait_visible("#option-group")
        # Shows os-release branding
        b.wait_in_text("#brand", "Fedora" if m.image == "fedora-coreos" else "Red Hat Enterprise Linux")

        # pre-fill target host
        b.open(f"/={HOST}/", tls=True)
        b.wait_visible("#login")
        b.set_val("#login-user-input", "admin")
        b.set_val("#login-password-input", "foobar")

        b.click("#login-button")
        self.approve_key(b, HOST)

        b.wait_visible('#content')
        b.wait_text('#current-username', 'admin')

    def testKeyLogin(self):
        m = self.machine
        b = self.browser

        KEY_PASSWORD = "sshfoobar"

        # old RSA/PEM format
        m.execute(f"ssh-keygen -q -f /root/id_bastion -t rsa -m PEM -N {KEY_PASSWORD}")
        m.execute(f"ssh-keyscan localhost | sed 's/^localhost/{HOST}/' > /root/known_hosts")
        self.addCleanup(m.execute, "rm /root/known_hosts /root/id_bastion /root/id_bastion.pub")

        def do_test_key_login(ssh_key_env: str):
            m.execute(
                "podman run -d --name cockpit-bastion -p 9090:9090 "
                "-v /root/known_hosts:/etc/ssh/ssh_known_hosts:ro,Z "
                "-v /root/id_bastion:/id_bastion:ro,Z "
                f"-e {ssh_key_env}=/id_bastion "
                "-e COCKPIT_DEBUG=all "
                "localhost/cockpit/ws"
            )
            m.execute("until curl --fail --head -k https://localhost:9090/; do sleep 1; done", timeout=10)

            b.open("/", tls=True)
            b.set_val("#login-user-input", "admin")
            b.set_val("#server-field", HOST)

            # the account password does not work
            b.set_val("#login-password-input", "foobar")
            b.click("#login-button")
            b.wait_text("#login-error-title", "Authentication failed")
            b.wait_text("#login-error-message", "Wrong user name or password")

            # SSH key password, but key is not authorized
            b.set_val("#login-password-input", KEY_PASSWORD)
            b.click("#login-button")
            b.wait_text("#login-error-title", "Authentication failed")
            b.wait_text("#login-error-message", "Wrong user name or password")

            # authorize key
            self.restore_file("/home/admin/.ssh/authorized_keys")
            # Do not use authorized_keys.d as that does not work on rhel4edge
            # Do not append but overwrite so we are sure the right key is used
            m.execute("cat /root/id_bastion.pub > /home/admin/.ssh/authorized_keys")

            # fails with wrong key password
            b.set_val("#login-password-input", "notthispassword")
            b.click("#login-button")
            b.wait_text("#login-error-title", "Authentication failed")
            b.wait_text("#login-error-message", "Wrong user name or password")

            # works with correct key password
            b.set_val("#login-password-input", KEY_PASSWORD)
            b.click("#login-button")
            b.wait_visible('#content')
            # runs the ssh target's bridge (no beiboot)
            m.execute("pgrep -f /usr/bin/[c]ockpit-bridge")
            b.logout()

            # now test with current OpenSSH format
            m.execute(f"yes | ssh-keygen -q -f /root/id_bastion -t rsa -N {KEY_PASSWORD}")
            m.execute("cat /root/id_bastion.pub > /home/admin/.ssh/authorized_keys")
            b.set_val("#login-user-input", "admin")
            b.set_val("#server-field", HOST)
            b.set_val("#login-password-input", KEY_PASSWORD)
            b.click("#login-button")
            b.wait_visible('#content')
            b.logout()

            # disable target bridge, should use beiboot
            m.execute("mount -o bind /dev/null /usr/bin/cockpit-bridge")
            try:
                b.try_login(password=KEY_PASSWORD)
                b.wait_visible('#content')
                m.execute("pgrep -f '[p]ython3 -ic # cockpit-bridge'")
            finally:
                m.execute("umount /usr/bin/cockpit-bridge")
            b.logout()

            m.execute("podman rm -f -t0 cockpit-bastion")
            m.execute("rm /home/admin/.ssh/authorized_keys")

        for ssh_key_env in ["COCKPIT_SSH_KEY_PATH", f"COCKPIT_SSH_KEY_PATH_{HOST.upper()}"]:
            do_test_key_login(ssh_key_env=ssh_key_env)

    def testExternalAgent(self):
        m = self.machine
        b = self.browser

        KEY_PASSWORD = "sshfoobar"

        # run the container as user -- as root does not make sense, as we want to
        # share the user's SSH key with it
        m.execute(f"podman save localhost/cockpit/ws -o {self.vm_tmpdir}/cockpit-ws.tar")

        # HACK: user podman does not add default route if the host doesn't have any
        m.execute("ip route add default via 172.27.0.1")
        self.addCleanup(m.execute, "ip route del default")

        self.restore_dir("/home/admin")

        # podman needs logind session (https://bugzilla.redhat.com/show_bug.cgi?id=2375715)
        m.execute("loginctl enable-linger admin")
        self.addCleanup(m.execute, "loginctl disable-linger admin")

        m.execute("runuser -u admin -- sh -ex", input=f"""
        # we don't start a real login session here, fake it
        cd $HOME
        export XDG_RUNTIME_DIR=/run/user/$(id -u)

        # create new key, set it up for logging into host
        ssh-keygen -q -f ~/.ssh/id_bastion -N {KEY_PASSWORD}
        cat ~/.ssh/id_bastion.pub > /home/admin/.ssh/authorized_keys
        ssh-keyscan localhost | sed 's/^localhost/{HOST}/' > ~/.ssh/known_hosts

        # start agent, load key
        eval $(ssh-agent -a $XDG_RUNTIME_DIR/ssh-agent)
        printf '#!/bin/sh\necho {KEY_PASSWORD}\n' > /tmp/pwd
        chmod u+x /tmp/pwd
        SSH_ASKPASS_REQUIRE=force SSH_ASKPASS=/tmp/pwd ssh-add ~/.ssh/id_bastion
        rm /tmp/pwd
        ssh-add -l

        # run container
        podman load -i {self.vm_tmpdir}/cockpit-ws.tar
        podman run -d --rm --name cockpit-bastion -p 9090:9090 \
                -v ~/.ssh/known_hosts:/etc/ssh/ssh_known_hosts:ro \
                -v $XDG_RUNTIME_DIR/ssh-agent:/ssh-agent \
                -e SSH_AUTH_SOCK=/ssh-agent \
                --security-opt=label=disable \
                -e COCKPIT_DEBUG=all localhost/cockpit/ws

        until curl --fail --head -k https://localhost:9090/; do sleep 1; done
        """)

        # login works without a password, using the external agent
        b.open("/", tls=True)
        b.set_val("#server-field", HOST)
        b.try_login(password="")
        b.wait_visible('#content')


@testlib.onlyImage("no cockpit/ws container on this image", "fedora-coreos")
@testlib.nondestructive
class TestWsPrivileged(testlib.MachineCase):
    def testService(self):
        # the install script should have created a cockpit.service, but not started it
        m = self.machine

        self.assertEqual(m.execute("! systemctl is-enabled cockpit.service").strip(), "disabled")
        self.assertEqual(m.execute("! systemctl is-active cockpit.service").strip(), "inactive")
        # stop ws container from previous test runs
        self.machine.stop_cockpit()
        self.assertEqual(m.execute("podman ps --noheading"), "")
        self.addCleanup(m.execute, "systemctl disable --now cockpit.service")

        m.execute("systemctl start cockpit.service")
        self.assertEqual(m.execute("systemctl is-active cockpit.service").strip(), "active")
        firstStartTime = m.execute("podman inspect cockpit-ws| jq '.[0].Created'")
        m.execute("until curl --fail --head -k https://localhost:9090/; do sleep 1; done", timeout=10)

        m.execute("systemctl restart cockpit.service")
        self.assertEqual(m.execute("systemctl is-active cockpit.service").strip(), "active")
        secondStartTime = m.execute("podman inspect cockpit-ws| jq '.[0].Created'")
        m.execute("until curl --fail --head -k https://localhost:9090/; do sleep 1; done", timeout=10)

        self.assertNotEqual(firstStartTime, secondStartTime)

        m.execute("systemctl stop cockpit.service")
        self.assertEqual(m.execute("! systemctl is-enabled cockpit.service").strip(), "disabled")
        self.assertEqual(m.execute("! systemctl is-active cockpit.service").strip(), "inactive")
        self.assertEqual(m.execute("podman ps --noheading"), "")

        # current container has `set -x` in its startup script, which ends up in the journal
        self.allow_journal_messages("^[/+'].*")


if __name__ == '__main__':
    testlib.test_main()
