| # Copyright 2018 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import contextlib |
| import json |
| import logging |
| from lxml import etree |
| import os |
| import StringIO |
| |
| from autotest_lib.client.common_lib import utils |
| |
| |
| class ChartFixture: |
| """Sets up chart tablet to display dummy scene image.""" |
| DISPLAY_SCRIPT = '/usr/local/autotest/bin/display_chart.py' |
| |
| def __init__(self, chart_host, scene_uri): |
| self.host = chart_host |
| self.scene_uri = scene_uri |
| self.display_pid = None |
| |
| def initialize(self): |
| """Prepare scene file and display it on chart host.""" |
| logging.info('Prepare scene file') |
| chart_dir = self.host.get_tmp_dir() |
| scene_path = os.path.join( |
| chart_dir, self.scene_uri[self.scene_uri.rfind('/') + 1:]) |
| self.host.run('wget', args=('-O', scene_path, self.scene_uri)) |
| self.host.run('chmod', args=('-R', '755', chart_dir)) |
| |
| logging.info('Display scene file') |
| self.display_pid = self.host.run_background( |
| 'python %s %s' % (self.DISPLAY_SCRIPT, scene_path)) |
| # TODO(inker): Suppose chart should be displayed very soon. Or require |
| # of waiting until chart actually displayed. |
| |
| def cleanup(self): |
| """Cleanup display script.""" |
| if self.display_pid is not None: |
| self.host.run('kill', args=('-2', str(self.display_pid))) |
| |
| |
| def get_chart_address(host_address, args): |
| """Get address of chart tablet from commandline args or mapping logic in |
| test lab. |
| |
| @param host_address: a list of hostname strings. |
| @param args: a dict parse from commandline args. |
| @return: |
| A list of strings for chart tablet addresses. |
| """ |
| address = utils.args_to_dict(args).get('chart') |
| if address is not None: |
| return address.split(',') |
| elif utils.is_in_container(): |
| return [ |
| utils.get_lab_chart_address(host) |
| for host in host_address |
| ] |
| else: |
| return None |
| |
| |
| class DUTFixture: |
| """Sets up camera filter for target camera facing on DUT.""" |
| TEST_CONFIG_PATH = '/var/cache/camera/test_config.json' |
| GENERATE_CAMERA_PROFILE = os.path.join('/usr', 'bin', |
| 'generate_camera_profile') |
| GENERATE_CAMERA_PROFILE_BACKUP = GENERATE_CAMERA_PROFILE + '.bak' |
| CAMERA_PROFILE_PATH = ('/mnt/stateful_partition/encrypted/var/cache/camera' |
| '/media_profiles.xml') |
| |
| def __init__(self, test, host, facing): |
| self.test = test |
| self.host = host |
| self.facing = facing |
| |
| @contextlib.contextmanager |
| def _set_selinux_permissive(self): |
| selinux_mode = self.host.run_output('getenforce') |
| self.host.run('setenforce 0') |
| yield |
| self.host.run('setenforce', args=(selinux_mode, )) |
| |
| def _filter_camera_profile(self, content, facing): |
| """Filter camera profile of target facing from content of camera |
| profile. |
| |
| @return: |
| New camera profile with only target facing, camera ids are |
| renumbered from 0. |
| """ |
| tree = etree.parse( |
| StringIO.StringIO(content), |
| parser=etree.XMLParser(compact=False)) |
| root = tree.getroot() |
| profiles = root.findall('CamcorderProfiles') |
| logging.debug('%d number of camera(s) found in camera profile', |
| len(profiles)) |
| assert 1 <= len(profiles) <= 2 |
| if len(profiles) == 2: |
| cam_id = 0 if facing == 'back' else 1 |
| for p in profiles: |
| if cam_id == int(p.attrib['cameraId']): |
| p.attrib['cameraId'] = '0' |
| else: |
| root.remove(p) |
| else: |
| with self.test._login_chrome( |
| board=self.test._get_board_name(), |
| reboot=False), self._set_selinux_permissive(): |
| has_front_camera = ( |
| 'feature:android.hardware.camera.front' in self.host. |
| run_output('android-sh -c "pm list features"')) |
| logging.debug('has_front_camera=%s', has_front_camera) |
| if (facing == 'front') != has_front_camera: |
| root.remove(profiles[0]) |
| return etree.tostring( |
| tree, xml_declaration=True, encoding=tree.docinfo.encoding) |
| |
| def _read_file(self, filepath): |
| """Read content of filepath from host.""" |
| tmp_path = os.path.join(self.test.tmpdir, os.path.basename(filepath)) |
| self.host.get_file(filepath, tmp_path, delete_dest=True) |
| with open(tmp_path) as f: |
| return f.read() |
| |
| def _write_file(self, filepath, content, permission=None, owner=None): |
| """Write content to filepath on remote host. |
| @param permission: set permission to 0xxx octal number of remote file. |
| @param owner: set owner of remote file. |
| """ |
| tmp_path = os.path.join(self.test.tmpdir, os.path.basename(filepath)) |
| with open(tmp_path, 'w') as f: |
| f.write(content) |
| if permission is not None: |
| os.chmod(tmp_path, permission) |
| self.host.send_file(tmp_path, filepath, delete_dest=True) |
| if owner is not None: |
| self.host.run('chown', args=(owner, filepath)) |
| |
| def initialize(self): |
| """Filter out camera other than target facing on DUT.""" |
| logging.info('Restart camera service with filter option') |
| self._write_file( |
| self.TEST_CONFIG_PATH, |
| json.dumps({ |
| 'enable_back_camera': self.facing == 'back', |
| 'enable_front_camera': self.facing == 'front', |
| 'enable_external_camera': False |
| }), |
| owner='arc-camera') |
| self.host.run('restart cros-camera') |
| |
| # To replace camera profile in ARC++ container, arc_setup will run |
| # GENERATE_CAMERA_PROFILE and mount its generated profile under |
| # CAMERA_PROFILE_PATH into container. |
| logging.info('Replace camera profile in ARC++ container') |
| self.host.run( |
| 'mv', |
| args=(self.GENERATE_CAMERA_PROFILE, |
| self.GENERATE_CAMERA_PROFILE_BACKUP)) |
| self._write_file( |
| self.GENERATE_CAMERA_PROFILE, |
| '''\ |
| #!/bin/bash |
| # Put this executable file to %r to make sure arc-setup knows |
| # we're using dynamic media_profiles.xml copy from host path |
| # %r''' % (self.GENERATE_CAMERA_PROFILE, self.CAMERA_PROFILE_PATH), |
| permission=0755) |
| profile = self._read_file(self.CAMERA_PROFILE_PATH) |
| new_profile = self._filter_camera_profile(profile, self.facing) |
| self._write_file(self.CAMERA_PROFILE_PATH, new_profile) |
| self.host.run('restart ui') |
| |
| def cleanup(self): |
| """Cleanup camera filter.""" |
| logging.info('Remove filter option and restore camera service') |
| self.host.run('rm', args=('-f', self.TEST_CONFIG_PATH)) |
| self.host.run('restart cros-camera') |
| |
| # Restore GENERATE_CAMERA_PROFILE to regenerate camera profile on DUT. |
| logging.info('Restore camera profile in ARC++ container') |
| self.host.run( |
| 'mv', |
| args=(self.GENERATE_CAMERA_PROFILE_BACKUP, |
| self.GENERATE_CAMERA_PROFILE), |
| ignore_status=True) |
| self.host.run('restart ui') |
