from oeqa.selftest.base import oeSelfTest
from oeqa.utils.commands import runCmd, bitbake, get_bb_var, runqemu
from oeqa.utils.decorators import testcase
from oeqa.utils.sshcontrol import SSHControl
import os
import sys
import logging

class ImageFeatures(oeSelfTest):

    test_user = 'tester'
    root_user = 'root'

    @testcase(1107)
    def test_non_root_user_can_connect_via_ssh_without_password(self):
        """
        Summary: Check if non root user can connect via ssh without password
        Expected: 1. Connection to the image via ssh using root user without providing a password should be allowed.
                  2. Connection to the image via ssh using tester user without providing a password should be allowed.
        Product: oe-core
        Author: Ionut Chisanovici <ionutx.chisanovici@intel.com>
        AutomatedBy: Daniel Istrate <daniel.alexandrux.istrate@intel.com>
        """

        features = 'EXTRA_IMAGE_FEATURES = "ssh-server-openssh empty-root-password allow-empty-password"\n'
        features += 'INHERIT += "extrausers"\n'
        features += 'EXTRA_USERS_PARAMS = "useradd -p \'\' {}; usermod -s /bin/sh {};"'.format(self.test_user, self.test_user)
        self.write_config(features)

        # Build a core-image-minimal
        bitbake('core-image-minimal')

        with runqemu("core-image-minimal", self) as qemu:
            # Attempt to ssh with each user into qemu with empty password
            for user in [self.root_user, self.test_user]:
                ssh = SSHControl(ip=qemu.ip, logfile=qemu.sshlog, user=user)
                status, output = ssh.run("true")
                self.assertEqual(status, 0, 'ssh to user %s failed with %s' % (user, output))

    @testcase(1115)
    def test_all_users_can_connect_via_ssh_without_password(self):
        """
        Summary:     Check if all users can connect via ssh without password
        Expected: 1. Connection to the image via ssh using root user without providing a password should NOT be allowed.
                  2. Connection to the image via ssh using tester user without providing a password should be allowed.
        Product:     oe-core
        Author:      Ionut Chisanovici <ionutx.chisanovici@intel.com>
        AutomatedBy: Daniel Istrate <daniel.alexandrux.istrate@intel.com>
        """

        features = 'EXTRA_IMAGE_FEATURES = "ssh-server-openssh allow-empty-password"\n'
        features += 'INHERIT += "extrausers"\n'
        features += 'EXTRA_USERS_PARAMS = "useradd -p \'\' {}; usermod -s /bin/sh {};"'.format(self.test_user, self.test_user)
        self.write_config(features)

        # Build a core-image-minimal
        bitbake('core-image-minimal')

        with runqemu("core-image-minimal", self) as qemu:
            # Attempt to ssh with each user into qemu with empty password
            for user in [self.root_user, self.test_user]:
                ssh = SSHControl(ip=qemu.ip, logfile=qemu.sshlog, user=user)
                status, output = ssh.run("true")
                if user == 'root':
                    self.assertNotEqual(status, 0, 'ssh to user root was allowed when it should not have been')
                else:
                    self.assertEqual(status, 0, 'ssh to user tester failed with %s' % output)


    @testcase(1114)
    def test_rpm_version_4_support_on_image(self):
        """
        Summary:     Check rpm version 4 support on image
        Expected:    Rpm version must be 4.x
        Product:     oe-core
        Author:      Ionut Chisanovici <ionutx.chisanovici@intel.com>
        AutomatedBy: Daniel Istrate <daniel.alexandrux.istrate@intel.com>
        """

        features = 'PREFERRED_VERSION_rpm = "4.%"\n'
        features += 'PREFERRED_VERSION_rpm-native = "4.%"\n'
        # Use openssh in IMAGE_INSTALL instead of ssh-server-openssh in EXTRA_IMAGE_FEATURES as a workaround for bug 8047
        features += 'IMAGE_INSTALL_append = " openssh"\n'
        features += 'EXTRA_IMAGE_FEATURES = "empty-root-password allow-empty-password package-management"\n'
        features += 'RPMROOTFSDEPENDS_remove = "rpmresolve-native:do_populate_sysroot"'
        self.write_config(features)

        # Build a core-image-minimal
        bitbake('core-image-minimal')

        # Check the native version of rpm is correct
        native_bindir = get_bb_var('STAGING_BINDIR_NATIVE')
        result = runCmd(os.path.join(native_bindir, 'rpm') + ' --version')
        self.assertIn('version 4.', result.output)

        # Check manifest for the rpm package
        deploydir = get_bb_var('DEPLOY_DIR_IMAGE')
        imgname = get_bb_var('IMAGE_LINK_NAME', 'core-image-minimal')
        with open(os.path.join(deploydir, imgname) + '.manifest', 'r') as f:
            for line in f:
                splitline = line.split()
                if len(splitline) > 2:
                    rpm_version = splitline[2]
                    if splitline[0] == 'rpm':
                        if not rpm_version.startswith('4.'):
                            self.fail('rpm version %s found in image, expected 4.x' % rpm_version)
                        break
            else:
                self.fail('No rpm package found in image')

        # Now do a couple of runtime tests
        with runqemu("core-image-minimal", self) as qemu:
            command = "rpm --version"
            status, output = qemu.run(command)
            self.assertEqual(0, status, 'Failed to run command "%s": %s' % (command, output))
            found_rpm_version = output.strip()

            # Make sure the retrieved rpm version is the expected one
            if rpm_version not in found_rpm_version:
                self.fail('RPM version is not {}, found instead {}.'.format(rpm_version, found_rpm_version))

            # Test that the rpm database is there and working
            command = "rpm -qa"
            status, output = qemu.run(command)
            self.assertEqual(0, status, 'Failed to run command "%s": %s' % (command, output))
            self.assertIn('packagegroup-core-boot', output)
            self.assertIn('busybox', output)


    @testcase(1116)
    def test_clutter_image_can_be_built(self):
        """
        Summary:     Check if clutter image can be built
        Expected:    1. core-image-clutter can be built
        Product:     oe-core
        Author:      Ionut Chisanovici <ionutx.chisanovici@intel.com>
        AutomatedBy: Daniel Istrate <daniel.alexandrux.istrate@intel.com>
        """

        # Build a core-image-clutter
        bitbake('core-image-clutter')

    @testcase(1117)
    def test_wayland_support_in_image(self):
        """
        Summary:     Check Wayland support in image
        Expected:    1. Wayland image can be build
                     2. Wayland feature can be installed
        Product:     oe-core
        Author:      Ionut Chisanovici <ionutx.chisanovici@intel.com>
        AutomatedBy: Daniel Istrate <daniel.alexandrux.istrate@intel.com>
        """

        features = 'DISTRO_FEATURES_append = " wayland"\n'
        features += 'CORE_IMAGE_EXTRA_INSTALL += "wayland weston"'
        self.write_config(features)

        # Build a core-image-weston
        bitbake('core-image-weston')