quay/endpoints/api/superuser.py

""" Superuser API. """
import logging
import os
import string
import socket

from datetime import datetime, timedelta
from random import SystemRandom

import pathvalidate

from flask import request, make_response, jsonify

import features

from app import app, avatar, superusers, authentication, config_provider, license_validator
from auth import scopes
from auth.auth_context import get_authenticated_user
from auth.permissions import SuperUserPermission
from data.database import ServiceKeyApprovalType
from endpoints.api import (ApiResource, nickname, resource, validate_json_request,
                           internal_only, require_scope, show_if, parse_args,
                           query_param, require_fresh_login, path_param, verify_not_prod,
                           page_support, log_action, format_date, truthy_bool,
                           InvalidRequest, NotFound, Unauthorized, InvalidResponse)
from endpoints.api.build import get_logs_or_log_url
from endpoints.api.superuser_models_pre_oci import (pre_oci_model, ServiceKeyDoesNotExist,
                                                    ServiceKeyAlreadyApproved,
                                                    InvalidRepositoryBuildException)
from util.useremails import send_confirmation_email, send_recovery_email
from util.license import decode_license, LicenseDecodeError
from util.security.ssl import load_certificate, CertInvalidException
from util.config.validator import EXTRA_CA_DIRECTORY
from _init import ROOT_DIR

logger = logging.getLogger(__name__)


def _validate_logs_arguments(start_time, end_time):
  if start_time:
    try:
      start_time = datetime.strptime(start_time + ' UTC', '%m/%d/%Y %Z')
    except ValueError:
      start_time = None

  if not start_time:
    start_time = datetime.today() - timedelta(7)  # One week

  if end_time:
    try:
      end_time = datetime.strptime(end_time + ' UTC', '%m/%d/%Y %Z')
      end_time = end_time + timedelta(days=1)
    except ValueError:
      end_time = None

  if not end_time:
    end_time = datetime.today()

  return start_time, end_time


def get_immediate_subdirectories(directory):
  return [name for name in os.listdir(directory) if os.path.isdir(os.path.join(directory, name))]


def get_services():
  services = set(get_immediate_subdirectories(app.config['SYSTEM_SERVICES_PATH']))
  services = services - set(app.config['SYSTEM_SERVICE_BLACKLIST'])
  return services


@resource('/v1/superuser/systemlogs/<service>')
@internal_only
@show_if(features.SUPER_USERS)
class SuperUserGetLogsForService(ApiResource):
  """ Resource for fetching the kinds of system logs in the system. """

  @require_fresh_login
  @verify_not_prod
  @nickname('getSystemLogs')
  @require_scope(scopes.SUPERUSER)
  def get(self, service):
    """ Returns the logs for the specific service. """
    if SuperUserPermission().can():
      if service not in get_services():
        raise NotFound()

      logs = []
      try:
        with open(app.config['SYSTEM_LOGS_FILE'], 'r') as f:
          logs = [line for line in f if line.find(service + '[') >= 0]
      except Exception:
        logger.exception('Cannot read logs')
        raise InvalidRequest('Cannot read logs')

      return {
        'instance': socket.gethostname(),
        'logs': '\n'.join(logs)
      }

    raise Unauthorized()


@resource('/v1/superuser/systemlogs/')
@internal_only
@show_if(features.SUPER_USERS)
class SuperUserSystemLogServices(ApiResource):
  """ Resource for fetching the kinds of system logs in the system. """

  @require_fresh_login
  @verify_not_prod
  @nickname('listSystemLogServices')
  @require_scope(scopes.SUPERUSER)
  def get(self):
    """ List the system logs for the current system. """
    if SuperUserPermission().can():
      return {
        'instance': socket.gethostname(),
        'services': list(get_services())
      }

    raise Unauthorized()


@resource('/v1/superuser/aggregatelogs')
@internal_only
class SuperUserAggregateLogs(ApiResource):
  """ Resource for fetching aggregated logs for the current user. """

  @require_fresh_login
  @verify_not_prod
  @nickname('listAllAggregateLogs')
  @parse_args()
  @query_param('starttime', 'Earliest time from which to get logs. (%m/%d/%Y %Z)', type=str)
  @query_param('endtime', 'Latest time to which to get logs. (%m/%d/%Y %Z)', type=str)
  def get(self, parsed_args):
    """ Returns the aggregated logs for the current system. """
    if SuperUserPermission().can():
      (start_time, end_time) = _validate_logs_arguments(parsed_args['starttime'],
                                                        parsed_args['endtime'])
      aggregated_logs = pre_oci_model.get_aggregated_logs(start_time, end_time)

      return {
        'aggregated': [log.to_dict() for log in aggregated_logs]
      }

    raise Unauthorized()

LOGS_PER_PAGE = 20

@resource('/v1/superuser/logs')
@internal_only
@show_if(features.SUPER_USERS)
class SuperUserLogs(ApiResource):
  """ Resource for fetching all logs in the system. """

  @require_fresh_login
  @verify_not_prod
  @nickname('listAllLogs')
  @parse_args()
  @query_param('starttime', 'Earliest time from which to get logs (%m/%d/%Y %Z)', type=str)
  @query_param('endtime', 'Latest time to which to get logs (%m/%d/%Y %Z)', type=str)
  @query_param('page', 'The page number for the logs', type=int, default=1)
  @page_support()
  @require_scope(scopes.SUPERUSER)
  def get(self, parsed_args, page_token):
    """ List the usage logs for the current system. """
    if SuperUserPermission().can():
      start_time = parsed_args['starttime']
      end_time = parsed_args['endtime']
      (start_time, end_time) = _validate_logs_arguments(start_time, end_time)
      log_page = pre_oci_model.get_logs_query(start_time, end_time, page_token=page_token)

      return {
        'start_time': format_date(start_time),
        'end_time': format_date(end_time),
        'logs': [log.to_dict() for log in log_page.logs],
      }, log_page.next_page_token

    raise Unauthorized()


def org_view(org):
  return {
    'name': org.username,
    'email': org.email,
    'avatar': avatar.get_data_for_org(org),
  }


def user_view(user, password=None):
  user_data = {
    'kind': 'user',
    'name': user.username,
    'username': user.username,
    'email': user.email,
    'verified': user.verified,
    'avatar': avatar.get_data_for_user(user),
    'super_user': superusers.is_superuser(user.username),
    'enabled': user.enabled,
  }

  if password is not None:
    user_data['encrypted_password'] = authentication.encrypt_user_password(password)

  return user_data


@resource('/v1/superuser/changelog/')
@internal_only
@show_if(features.SUPER_USERS)
class ChangeLog(ApiResource):
  """ Resource for returning the change log for enterprise customers. """

  @require_fresh_login
  @verify_not_prod
  @nickname('getChangeLog')
  @require_scope(scopes.SUPERUSER)
  def get(self):
    """ Returns the change log for this installation. """
    if SuperUserPermission().can():
      with open(os.path.join(ROOT_DIR, 'CHANGELOG.md'), 'r') as f:
        return {
          'log': f.read()
        }

    raise Unauthorized()


@resource('/v1/superuser/organizations/')
@internal_only
@show_if(features.SUPER_USERS)
class SuperUserOrganizationList(ApiResource):
  """ Resource for listing organizations in the system. """

  @require_fresh_login
  @verify_not_prod
  @nickname('listAllOrganizations')
  @require_scope(scopes.SUPERUSER)
  def get(self):
    """ Returns a list of all organizations in the system. """
    if SuperUserPermission().can():
      return {
        'organizations': [org.to_dict() for org in pre_oci_model.get_organizations()]
      }

    raise Unauthorized()


@resource('/v1/superuser/users/')
@internal_only
@show_if(features.SUPER_USERS)
class SuperUserList(ApiResource):
  """ Resource for listing users in the system. """
  schemas = {
    'CreateInstallUser': {
      'id': 'CreateInstallUser',
      'description': 'Data for creating a user',
      'required': ['username'],
      'properties': {
        'username': {
          'type': 'string',
          'description': 'The username of the user being created'
        },

        'email': {
          'type': 'string',
          'description': 'The email address of the user being created'
        }
      }
    }
  }

  @require_fresh_login
  @verify_not_prod
  @nickname('listAllUsers')
  @parse_args()
  @query_param('disabled', 'If false, only enabled users will be returned.', type=truthy_bool,
               default=True)
  @require_scope(scopes.SUPERUSER)
  def get(self, parsed_args):
    """ Returns a list of all users in the system. """
    if SuperUserPermission().can():
      users = pre_oci_model.get_active_users(disabled=parsed_args['disabled'])
      return {
        'users': [user.to_dict() for user in users]
      }

    raise Unauthorized()

  @require_fresh_login
  @verify_not_prod
  @nickname('createInstallUser')
  @validate_json_request('CreateInstallUser')
  @require_scope(scopes.SUPERUSER)
  def post(self):
    """ Creates a new user. """
    # Ensure that we are using database auth.
    if app.config['AUTHENTICATION_TYPE'] != 'Database':
      raise InvalidRequest('Cannot create a user in a non-database auth system')

    user_information = request.get_json()
    if SuperUserPermission().can():
      # Generate a temporary password for the user.
      random = SystemRandom()
      password = ''.join([random.choice(string.ascii_uppercase + string.digits) for _ in range(32)])

      # Create the user.
      username = user_information['username']
      email = user_information.get('email')
      install_user, confirmation_code = pre_oci_model.create_install_user(username, password, email)
      if features.MAILING:
        send_confirmation_email(install_user.username, install_user.email, confirmation_code)

      return {
        'username': username,
        'email': email,
        'password': password,
        'encrypted_password': authentication.encrypt_user_password(password),
      }

    raise Unauthorized()


@resource('/v1/superusers/users/<username>/sendrecovery')
@internal_only
@show_if(features.SUPER_USERS)
@show_if(features.MAILING)
class SuperUserSendRecoveryEmail(ApiResource):
  """ Resource for sending a recovery user on behalf of a user. """

  @require_fresh_login
  @verify_not_prod
  @nickname('sendInstallUserRecoveryEmail')
  @require_scope(scopes.SUPERUSER)
  def post(self, username):
    # Ensure that we are using database auth.
    if app.config['AUTHENTICATION_TYPE'] != 'Database':
      raise InvalidRequest('Cannot send a recovery e-mail for non-database auth')

    if SuperUserPermission().can():
      user = pre_oci_model.get_nonrobot_user(username)
      if user is None:
        raise NotFound()

      if superusers.is_superuser(username):
        raise InvalidRequest('Cannot send a recovery email for a superuser')

      code = pre_oci_model.create_reset_password_email_code(user.email)
      send_recovery_email(user.email, code)
      return {
        'email': user.email
      }

    raise Unauthorized()


@resource('/v1/superuser/users/<username>')
@path_param('username', 'The username of the user being managed')
@internal_only
@show_if(features.SUPER_USERS)
class SuperUserManagement(ApiResource):
  """ Resource for managing users in the system. """
  schemas = {
    'UpdateUser': {
      'id': 'UpdateUser',
      'type': 'object',
      'description': 'Description of updates for a user',
      'properties': {
        'password': {
          'type': 'string',
          'description': 'The new password for the user',
        },
        'email': {
          'type': 'string',
          'description': 'The new e-mail address for the user',
        },
        'enabled': {
          'type': 'boolean',
          'description': 'Whether the user is enabled'
        }
      },
    },
  }

  @require_fresh_login
  @verify_not_prod
  @nickname('getInstallUser')
  @require_scope(scopes.SUPERUSER)
  def get(self, username):
    """ Returns information about the specified user. """
    if SuperUserPermission().can():
      user = pre_oci_model.get_nonrobot_user(username)
      if user is None:
        raise NotFound()

      return user.to_dict()

    raise Unauthorized()

  @require_fresh_login
  @verify_not_prod
  @nickname('deleteInstallUser')
  @require_scope(scopes.SUPERUSER)
  def delete(self, username):
    """ Deletes the specified user. """
    if SuperUserPermission().can():
      user = pre_oci_model.get_nonrobot_user(username)
      if user is None:
        raise NotFound()

      if superusers.is_superuser(username):
        raise InvalidRequest('Cannot delete a superuser')

      pre_oci_model.delete_user(username)
      return '', 204

    raise Unauthorized()

  @require_fresh_login
  @verify_not_prod
  @nickname('changeInstallUser')
  @validate_json_request('UpdateUser')
  @require_scope(scopes.SUPERUSER)
  def put(self, username):
    """ Updates information about the specified user. """
    if SuperUserPermission().can():
      user = pre_oci_model.get_nonrobot_user(username)
      if user is None:
        raise NotFound()

      if superusers.is_superuser(username):
        raise InvalidRequest('Cannot update a superuser')

      user_data = request.get_json()
      if 'password' in user_data:
        # Ensure that we are using database auth.
        if app.config['AUTHENTICATION_TYPE'] != 'Database':
          raise InvalidRequest('Cannot change password in non-database auth')

        pre_oci_model.change_password(username, user_data['password'])

      if 'email' in user_data:
        # Ensure that we are using database auth.
        if app.config['AUTHENTICATION_TYPE'] != 'Database':
          raise InvalidRequest('Cannot change e-mail in non-database auth')

        pre_oci_model.update_email(username, user_data['email'], auto_verify=True)

      if 'enabled' in user_data:
        # Disable/enable the user.
        pre_oci_model.update_enabled(username, bool(user_data['enabled']))

      if 'superuser' in user_data:
        config_object = config_provider.get_config()
        superusers_set = set(config_object['SUPER_USERS'])

        if user_data['superuser']:
          superusers_set.add(username)
        elif username in superusers_set:
          superusers_set.remove(username)

        config_object['SUPER_USERS'] = list(superusers_set)
        config_provider.save_config(config_object)

      return_value = user.to_dict()
      if user_data.get('password') is not None:
        password = user_data.get('password')
        return_value['encrypted_password'] = authentication.encrypt_user_password(password)

      return return_value

    raise Unauthorized()


@resource('/v1/superuser/takeownership/<namespace>')
@path_param('namespace', 'The namespace of the user or organization being managed')
@internal_only
@show_if(features.SUPER_USERS)
class SuperUserTakeOwnership(ApiResource):
  """ Resource for a superuser to take ownership of a namespace. """

  @require_fresh_login
  @verify_not_prod
  @nickname('takeOwnership')
  @require_scope(scopes.SUPERUSER)
  def post(self, namespace):
    """ Takes ownership of the specified organization or user. """
    if SuperUserPermission().can():
      # Disallow for superusers.
      if superusers.is_superuser(namespace):
        raise InvalidRequest('Cannot take ownership of a superuser')

      authed_user = get_authenticated_user()
      entity_id, was_user = pre_oci_model.take_ownership(namespace, authed_user)
      if entity_id is None:
        raise NotFound()

      # Log the change.
      log_metadata = {
        'entity_id': entity_id,
        'namespace': namespace,
        'was_user': was_user,
        'superuser': authed_user.username,
      }

      log_action('take_ownership', authed_user.username, log_metadata)

      return jsonify({
        'namespace': namespace
      })

    raise Unauthorized()


@resource('/v1/superuser/organizations/<name>')
@path_param('name', 'The name of the organizaton being managed')
@internal_only
@show_if(features.SUPER_USERS)
class SuperUserOrganizationManagement(ApiResource):
  """ Resource for managing organizations in the system. """
  schemas = {
    'UpdateOrg': {
      'id': 'UpdateOrg',
      'type': 'object',
      'description': 'Description of updates for an organization',
      'properties': {
        'name': {
          'type': 'string',
          'description': 'The new name for the organization',
        }
      },
    },
  }

  @require_fresh_login
  @verify_not_prod
  @nickname('deleteOrganization')
  @require_scope(scopes.SUPERUSER)
  def delete(self, name):
    """ Deletes the specified organization. """
    if SuperUserPermission().can():
      pre_oci_model.delete_organization(name)
      return '', 204

    raise Unauthorized()

  @require_fresh_login
  @verify_not_prod
  @nickname('changeOrganization')
  @validate_json_request('UpdateOrg')
  @require_scope(scopes.SUPERUSER)
  def put(self, name):
    """ Updates information about the specified user. """
    if SuperUserPermission().can():
      org_data = request.get_json()
      old_name = org_data['name'] if 'name' in org_data else None
      org = pre_oci_model.change_organization_name(name, old_name)
      return org.to_dict()

    raise Unauthorized()


def key_view(key):
  return {
    'name': key.name,
    'kid': key.kid,
    'service': key.service,
    'jwk': key.jwk,
    'metadata': key.metadata,
    'created_date': key.created_date,
    'expiration_date': key.expiration_date,
    'rotation_duration': key.rotation_duration,
    'approval': approval_view(key.approval) if key.approval is not None else None,
  }


def approval_view(approval):
  return {
    'approver': user_view(approval.approver) if approval.approver else None,
    'approval_type': approval.approval_type,
    'approved_date': approval.approved_date,
    'notes': approval.notes,
  }


@resource('/v1/superuser/keys')
@show_if(features.SUPER_USERS)
class SuperUserServiceKeyManagement(ApiResource):
  """ Resource for managing service keys."""
  schemas = {
    'CreateServiceKey': {
      'id': 'CreateServiceKey',
      'type': 'object',
      'description': 'Description of creation of a service key',
      'required': ['service', 'expiration'],
      'properties': {
        'service': {
          'type': 'string',
          'description': 'The service authenticating with this key',
        },
        'name': {
          'type': 'string',
          'description': 'The friendly name of a service key',
        },
        'metadata': {
          'type': 'object',
          'description': 'The key/value pairs of this key\'s metadata',
        },
        'notes': {
          'type': 'string',
          'description': 'If specified, the extra notes for the key',
        },
        'expiration': {
          'description': 'The expiration date as a unix timestamp',
          'anyOf': [{'type': 'number'}, {'type': 'null'}],
        },
      },
    },
  }

  @verify_not_prod
  @nickname('listServiceKeys')
  @require_scope(scopes.SUPERUSER)
  def get(self):
    if SuperUserPermission().can():
      keys = pre_oci_model.list_all_service_keys()

      return jsonify({
        'keys': [key.to_dict() for key in keys],
      })

    raise Unauthorized()

  @require_fresh_login
  @verify_not_prod
  @nickname('createServiceKey')
  @require_scope(scopes.SUPERUSER)
  @validate_json_request('CreateServiceKey')
  def post(self):
    if SuperUserPermission().can():
      body = request.get_json()

      # Ensure we have a valid expiration date if specified.
      expiration_date = body.get('expiration', None)
      if expiration_date is not None:
        try:
          expiration_date = datetime.utcfromtimestamp(float(expiration_date))
        except ValueError as ve:
          raise InvalidRequest('Invalid expiration date: %s' % ve)

        if expiration_date <= datetime.now():
          raise InvalidRequest('Expiration date cannot be in the past')

      # Create the metadata for the key.
      user = get_authenticated_user()
      metadata = body.get('metadata', {})
      metadata.update({
        'created_by': 'Quay Superuser Panel',
        'creator': user.username,
        'ip': request.remote_addr,
      })

      # Generate a key with a private key that we *never save*.
      (private_key, key_id) = pre_oci_model.generate_service_key(body['service'], expiration_date,
                                                                 metadata=metadata,
                                                                 name=body.get('name', ''))
      # Auto-approve the service key.
      pre_oci_model.approve_service_key(key_id, user, ServiceKeyApprovalType.SUPERUSER,
                                        notes=body.get('notes', ''))

      # Log the creation and auto-approval of the service key.
      key_log_metadata = {
        'kid': key_id,
        'preshared': True,
        'service': body['service'],
        'name': body.get('name', ''),
        'expiration_date': expiration_date,
        'auto_approved': True,
      }

      log_action('service_key_create', None, key_log_metadata)
      log_action('service_key_approve', None, key_log_metadata)

      return jsonify({
        'kid': key_id,
        'name': body.get('name', ''),
        'service': body['service'],
        'public_key': private_key.publickey().exportKey('PEM'),
        'private_key': private_key.exportKey('PEM'),
      })

    raise Unauthorized()


@resource('/v1/superuser/keys/<kid>')
@path_param('kid', 'The unique identifier for a service key')
@show_if(features.SUPER_USERS)
class SuperUserServiceKey(ApiResource):
  """ Resource for managing service keys. """
  schemas = {
    'PutServiceKey': {
      'id': 'PutServiceKey',
      'type': 'object',
      'description': 'Description of updates for a service key',
      'properties': {
        'name': {
          'type': 'string',
          'description': 'The friendly name of a service key',
        },
        'metadata': {
          'type': 'object',
          'description': 'The key/value pairs of this key\'s metadata',
        },
        'expiration': {
          'description': 'The expiration date as a unix timestamp',
          'anyOf': [{'type': 'number'}, {'type': 'null'}],
        },
      },
    },
  }

  @verify_not_prod
  @nickname('getServiceKey')
  @require_scope(scopes.SUPERUSER)
  def get(self, kid):
    if SuperUserPermission().can():
      try:
        key = pre_oci_model.get_service_key(kid, approved_only=False, alive_only=False)
        return jsonify(key.to_dict())
      except ServiceKeyDoesNotExist:
        raise NotFound()

    raise Unauthorized()

  @require_fresh_login
  @verify_not_prod
  @nickname('updateServiceKey')
  @require_scope(scopes.SUPERUSER)
  @validate_json_request('PutServiceKey')
  def put(self, kid):
    if SuperUserPermission().can():
      body = request.get_json()
      try:
        key = pre_oci_model.get_service_key(kid, approved_only=False, alive_only=False)
      except ServiceKeyDoesNotExist:
        raise NotFound()

      key_log_metadata = {
        'kid': key.kid,
        'service': key.service,
        'name': body.get('name', key.name),
        'expiration_date': key.expiration_date,
      }

      if 'expiration' in body:
        expiration_date = body['expiration']
        if expiration_date is not None and expiration_date != '':
          try:
            expiration_date = datetime.utcfromtimestamp(float(expiration_date))
          except ValueError as ve:
            raise InvalidRequest('Invalid expiration date: %s' % ve)

          if expiration_date <= datetime.now():
            raise InvalidRequest('Cannot have an expiration date in the past')

        key_log_metadata.update({
          'old_expiration_date': key.expiration_date,
          'expiration_date': expiration_date,
        })

        log_action('service_key_extend', None, key_log_metadata)
        pre_oci_model.set_key_expiration(kid, expiration_date)

      if 'name' in body or 'metadata' in body:
        pre_oci_model.update_service_key(kid, body.get('name'), body.get('metadata'))
        log_action('service_key_modify', None, key_log_metadata)

      updated_key = pre_oci_model.get_service_key(kid, approved_only=False, alive_only=False)
      return jsonify(updated_key.to_dict())

    raise Unauthorized()

  @require_fresh_login
  @verify_not_prod
  @nickname('deleteServiceKey')
  @require_scope(scopes.SUPERUSER)
  def delete(self, kid):
    if SuperUserPermission().can():
      try:
        key = pre_oci_model.delete_service_key(kid)
      except ServiceKeyDoesNotExist:
        raise NotFound()

      key_log_metadata = {
        'kid': kid,
        'service': key.service,
        'name': key.name,
        'created_date': key.created_date,
        'expiration_date': key.expiration_date,
      }

      log_action('service_key_delete', None, key_log_metadata)
      return make_response('', 204)

    raise Unauthorized()


@resource('/v1/superuser/approvedkeys/<kid>')
@path_param('kid', 'The unique identifier for a service key')
@show_if(features.SUPER_USERS)
class SuperUserServiceKeyApproval(ApiResource):
  """ Resource for approving service keys. """

  schemas = {
    'ApproveServiceKey': {
      'id': 'ApproveServiceKey',
      'type': 'object',
      'description': 'Information for approving service keys',
      'properties': {
        'notes': {
          'type': 'string',
          'description': 'Optional approval notes',
        },
      },
    },
  }

  @require_fresh_login
  @verify_not_prod
  @nickname('approveServiceKey')
  @require_scope(scopes.SUPERUSER)
  @validate_json_request('ApproveServiceKey')
  def post(self, kid):
    if SuperUserPermission().can():
      notes = request.get_json().get('notes', '')
      approver = get_authenticated_user()
      try:
        key = pre_oci_model.approve_service_key(kid, approver, ServiceKeyApprovalType.SUPERUSER,
                                                notes=notes)

        # Log the approval of the service key.
        key_log_metadata = {
          'kid': kid,
          'service': key.service,
          'name': key.name,
          'expiration_date': key.expiration_date,
        }

        log_action('service_key_approve', None, key_log_metadata)
      except ServiceKeyDoesNotExist:
        raise NotFound()
      except ServiceKeyAlreadyApproved:
        pass

      return make_response('', 201)

    raise Unauthorized()


@resource('/v1/superuser/customcerts')
@internal_only
@show_if(features.SUPER_USERS)
class SuperUserCustomCertificates(ApiResource):
  """ Resource for managing custom certificates. """

  @nickname('getCustomCertificates')
  @require_fresh_login
  @require_scope(scopes.SUPERUSER)
  @verify_not_prod
  def get(self):
    if SuperUserPermission().can():
      has_extra_certs_path = config_provider.volume_file_exists(EXTRA_CA_DIRECTORY)
      extra_certs_found = config_provider.list_volume_directory(EXTRA_CA_DIRECTORY)
      if extra_certs_found is None:
        return {
          'status': 'file' if has_extra_certs_path else 'none',
        }

      cert_views = []
      for extra_cert_path in extra_certs_found:
        try:
          cert_full_path = config_provider.get_volume_path(EXTRA_CA_DIRECTORY, extra_cert_path)
          with config_provider.get_volume_file(cert_full_path) as f:
            certificate = load_certificate(f.read())
            cert_views.append({
              'path': extra_cert_path,
              'names': list(certificate.names),
              'expired': certificate.expired,
            })
        except CertInvalidException as cie:
          cert_views.append({
            'path': extra_cert_path,
            'error': cie.message,
          })
        except IOError as ioe:
          cert_views.append({
            'path': extra_cert_path,
            'error': ioe.message,
          })

      return {
        'status': 'directory',
        'certs': cert_views,
      }

    raise Unauthorized()


@resource('/v1/superuser/customcerts/<certpath>')
@internal_only
@show_if(features.SUPER_USERS)
class SuperUserCustomCertificate(ApiResource):
  """ Resource for managing a custom certificate. """

  @nickname('uploadCustomCertificate')
  @require_fresh_login
  @require_scope(scopes.SUPERUSER)
  @verify_not_prod
  def post(self, certpath):
    if SuperUserPermission().can():
      uploaded_file = request.files['file']
      if not uploaded_file:
        raise InvalidRequest('Missing certificate file')

      # Save the certificate.
      certpath = pathvalidate.sanitize_filename(certpath)
      if not certpath.endswith('.crt'):
        raise InvalidRequest('Invalid certificate file: must have suffix `.crt`')

      logger.debug('Saving custom certificate %s', certpath)
      cert_full_path = config_provider.get_volume_path(EXTRA_CA_DIRECTORY, certpath)
      config_provider.save_volume_file(cert_full_path, uploaded_file)
      logger.debug('Saved custom certificate %s', certpath)

      # Validate the certificate.
      try:
        logger.debug('Loading custom certificate %s', certpath)
        with config_provider.get_volume_file(cert_full_path) as f:
          load_certificate(f.read())
      except CertInvalidException:
        logger.exception('Got certificate invalid error for cert %s', certpath)
        return '', 204
      except IOError:
        logger.exception('Got IO error for cert %s', certpath)
        return '', 204

      # Call the update script to install the certificate immediately.
      if not app.config['TESTING']:
        logger.debug('Calling certs_install.sh')
        if os.system('/conf/init/certs_install.sh') != 0:
          raise Exception('Could not install certificates')

        logger.debug('certs_install.sh completed')

      return '', 204

    raise Unauthorized()

  @nickname('deleteCustomCertificate')
  @require_fresh_login
  @require_scope(scopes.SUPERUSER)
  @verify_not_prod
  def delete(self, certpath):
    if SuperUserPermission().can():
      cert_full_path = config_provider.get_volume_path(EXTRA_CA_DIRECTORY, certpath)
      config_provider.remove_volume_file(cert_full_path)
      return '', 204

    raise Unauthorized()


@resource('/v1/superuser/license')
@internal_only
@show_if(features.SUPER_USERS)
class SuperUserLicense(ApiResource):
  """ Resource for getting and setting a license. """
  schemas = {
    'UpdateLicense': {
      'type': 'object',
      'description': 'Updates a license',
      'required': [
        'license',
      ],
      'properties': {
        'license': {
          'type': 'string'
        },
      },
    },
  }

  @nickname('getLicense')
  @require_fresh_login
  @require_scope(scopes.SUPERUSER)
  @verify_not_prod
  def get(self):
    """ Returns the current decoded license. """
    if SuperUserPermission().can():
      try:
        decoded_license = config_provider.get_license()
      except LicenseDecodeError as le:
        raise InvalidRequest(le.message)

      statuses = decoded_license.validate(app.config)
      all_met = all(status.is_met() for status in statuses)

      return {
        'status': [status.as_dict(for_private=True) for status in statuses],
        'success': all_met,
      }

    raise Unauthorized()

  @nickname('updateLicense')
  @require_fresh_login
  @require_scope(scopes.SUPERUSER)
  @verify_not_prod
  @validate_json_request('UpdateLicense')
  def put(self):
    """ Validates the given license contents and then saves it to the config volume. """
    if SuperUserPermission().can():
      license_contents = request.get_json()['license']
      try:
        decoded_license = decode_license(license_contents)
      except LicenseDecodeError as le:
        raise InvalidRequest(le.message)

      statuses = decoded_license.validate(app.config)
      all_met = all(status.is_met() for status in statuses)
      if all_met:
        # Save the license and update the license check thread.
        config_provider.save_license(license_contents)
        license_validator.compute_license_sufficiency()

      return {
        'status': [status.as_dict(for_private=True) for status in statuses],
        'success': all_met,
      }

    raise Unauthorized()


@resource('/v1/superuser/<build_uuid>/logs')
@path_param('build_uuid', 'The UUID of the build')
@show_if(features.SUPER_USERS)
class SuperUserRepositoryBuildLogs(ApiResource):
  """ Resource for loading repository build logs for the superuser. """

  @require_fresh_login
  @verify_not_prod
  @nickname('getRepoBuildLogsSuperUser')
  @require_scope(scopes.SUPERUSER)
  def get(self, build_uuid):
    """ Return the build logs for the build specified by the build uuid. """
    if SuperUserPermission().can():
      try:
        repo_build = pre_oci_model.get_repository_build(build_uuid)
        return get_logs_or_log_url(repo_build)
      except InvalidRepositoryBuildException as e:
        raise InvalidResponse(e.message)

    raise Unauthorized()


@resource('/v1/superuser/<build_uuid>/status')
@path_param('repository', 'The full path of the repository. e.g. namespace/name')
@path_param('build_uuid', 'The UUID of the build')
@show_if(features.SUPER_USERS)
class SuperUserRepositoryBuildStatus(ApiResource):
  """ Resource for dealing with repository build status. """

  @require_fresh_login
  @verify_not_prod
  @nickname('getRepoBuildStatusSuperUser')
  @require_scope(scopes.SUPERUSER)
  def get(self, build_uuid):
    """ Return the status for the builds specified by the build uuids. """
    if SuperUserPermission().can():
      try:
        build = pre_oci_model.get_repository_build(build_uuid)
      except InvalidRepositoryBuildException as e:
        raise InvalidResponse(e.message)
      return build.to_dict()

    raise Unauthorized()


@resource('/v1/superuser/<build_uuid>/build')
@path_param('repository', 'The full path of the repository. e.g. namespace/name')
@path_param('build_uuid', 'The UUID of the build')
@show_if(features.SUPER_USERS)
class SuperUserRepositoryBuildResource(ApiResource):
  """ Resource for dealing with repository builds as a super user. """

  @require_fresh_login
  @verify_not_prod
  @nickname('getRepoBuildSuperUser')
  @require_scope(scopes.SUPERUSER)
  def get(self, build_uuid):
    """ Returns information about a build. """
    if SuperUserPermission().can():
      try:
        build = pre_oci_model.get_repository_build(build_uuid)
      except InvalidRepositoryBuildException:
        raise NotFound()

      return build.to_dict()

    raise Unauthorized()