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quay/endpoints/api/__init__.py
2016-02-10 00:25:33 +02:00

449 lines
13 KiB
Python

import logging
import datetime
import json
from app import app, metric_queue
from flask import Blueprint, request, make_response, jsonify, session
from flask.ext.restful import Resource, abort, Api, reqparse
from flask.ext.restful.utils.cors import crossdomain
from calendar import timegm
from email.utils import formatdate
from functools import partial, wraps
from jsonschema import validate, ValidationError
from data import model
from util.names import parse_namespace_repository
from auth.permissions import (ReadRepositoryPermission, ModifyRepositoryPermission,
AdministerRepositoryPermission, UserReadPermission,
UserAdminPermission)
from auth import scopes
from auth.auth_context import get_authenticated_user, get_validated_oauth_token
from auth.auth import process_oauth
from endpoints.csrf import csrf_protect
from endpoints.decorators import check_anon_protection
from util.saas.metricqueue import time_decorator
from util.pagination import encrypt_page_token, decrypt_page_token
logger = logging.getLogger(__name__)
api_bp = Blueprint('api', __name__)
api = Api()
api.init_app(api_bp)
api.decorators = [csrf_protect,
crossdomain(origin='*', headers=['Authorization', 'Content-Type']),
process_oauth, time_decorator(api_bp.name, metric_queue)]
class ApiException(Exception):
def __init__(self, error_type, status_code, error_description, payload=None):
Exception.__init__(self)
self.error_description = error_description
self.status_code = status_code
self.payload = payload
self.error_type = error_type
def to_dict(self):
rv = dict(self.payload or ())
if self.error_description is not None:
rv['error_description'] = self.error_description
rv['error_type'] = self.error_type
return rv
class ExternalServiceTimeout(ApiException):
def __init__(self, error_description, payload=None):
ApiException.__init__(self, 'external_service_timeout', 520, error_description, payload)
class InvalidRequest(ApiException):
def __init__(self, error_description, payload=None):
ApiException.__init__(self, 'invalid_request', 400, error_description, payload)
class InvalidResponse(ApiException):
def __init__(self, error_description, payload=None):
ApiException.__init__(self, 'invalid_response', 400, error_description, payload)
class InvalidToken(ApiException):
def __init__(self, error_description, payload=None):
ApiException.__init__(self, 'invalid_token', 401, error_description, payload)
class Unauthorized(ApiException):
def __init__(self, payload=None):
user = get_authenticated_user()
if user is None or user.organization:
ApiException.__init__(self, 'invalid_token', 401, "Requires authentication", payload)
else:
ApiException.__init__(self, 'insufficient_scope', 403, 'Unauthorized', payload)
class FreshLoginRequired(ApiException):
def __init__(self, payload=None):
ApiException.__init__(self, 'fresh_login_required', 401, "Requires fresh login", payload)
class ExceedsLicenseException(ApiException):
def __init__(self, payload=None):
ApiException.__init__(self, None, 402, 'Payment Required', payload)
class NotFound(ApiException):
def __init__(self, payload=None):
ApiException.__init__(self, None, 404, 'Not Found', payload)
class DownstreamIssue(ApiException):
def __init__(self, payload=None):
ApiException.__init__(self, None, 520, 'Downstream Issue', payload)
@api_bp.app_errorhandler(ApiException)
@crossdomain(origin='*', headers=['Authorization', 'Content-Type'])
def handle_api_error(error):
response = jsonify(error.to_dict())
response.status_code = error.status_code
if error.error_type is not None:
response.headers['WWW-Authenticate'] = ('Bearer error="%s" error_description="%s"' %
(error.error_type, error.error_description))
return response
def resource(*urls, **kwargs):
def wrapper(api_resource):
if not api_resource:
return None
api.add_resource(api_resource, *urls, **kwargs)
return api_resource
return wrapper
def show_if(value):
def f(inner):
if not value:
return None
return inner
return f
def hide_if(value):
def f(inner):
if value:
return None
return inner
return f
def truthy_bool(param):
return param not in {False, 'false', 'False', '0', 'FALSE', '', 'null'}
def format_date(date):
""" Output an RFC822 date format. """
if date is None:
return None
return formatdate(timegm(date.utctimetuple()))
def add_method_metadata(name, value):
def modifier(func):
if func is None:
return None
if '__api_metadata' not in dir(func):
func.__api_metadata = {}
func.__api_metadata[name] = value
return func
return modifier
def method_metadata(func, name):
if func is None:
return None
if '__api_metadata' in dir(func):
return func.__api_metadata.get(name, None)
return None
nickname = partial(add_method_metadata, 'nickname')
related_user_resource = partial(add_method_metadata, 'related_user_resource')
internal_only = add_method_metadata('internal', True)
def path_param(name, description):
def add_param(func):
if not func:
return func
if '__api_path_params' not in dir(func):
func.__api_path_params = {}
func.__api_path_params[name] = {
'name': name,
'description': description
}
return func
return add_param
def query_param(name, help_str, type=reqparse.text_type, default=None,
choices=(), required=False):
def add_param(func):
if '__api_query_params' not in dir(func):
func.__api_query_params = []
func.__api_query_params.append({
'name': name,
'type': type,
'help': help_str,
'default': default,
'choices': choices,
'required': required,
'location': ('args')
})
return func
return add_param
def page_support(page_token_kwarg='page_token', parsed_args_kwarg='parsed_args'):
def inner(func):
""" Adds pagination support to an API endpoint. The decorated API will have an
added query parameter named 'next_page'. Works in tandem with the
modelutil paginate method.
"""
@wraps(func)
@query_param('next_page', 'The page token for the next page', type=str)
def wrapper(self, *args, **kwargs):
# Note: if page_token is None, we'll receive the first page of results back.
page_token = decrypt_page_token(kwargs[parsed_args_kwarg]['next_page'])
kwargs[page_token_kwarg] = page_token
(result, next_page_token) = func(self, *args, **kwargs)
if next_page_token is not None:
result['next_page'] = encrypt_page_token(next_page_token)
return result
return wrapper
return inner
def parse_args(kwarg_name='parsed_args'):
def inner(func):
@wraps(func)
def wrapper(self, *args, **kwargs):
if '__api_query_params' not in dir(func):
abort(500)
parser = reqparse.RequestParser()
for arg_spec in func.__api_query_params:
parser.add_argument(**arg_spec)
kwargs[kwarg_name] = parser.parse_args()
return func(self, *args, **kwargs)
return wrapper
return inner
def parse_repository_name(func):
@wraps(func)
def wrapper(repository, *args, **kwargs):
(namespace, repository) = parse_namespace_repository(repository, app.config['LIBRARY_NAMESPACE'])
return func(namespace, repository, *args, **kwargs)
return wrapper
class ApiResource(Resource):
method_decorators = [check_anon_protection]
def options(self):
return None, 200
class RepositoryParamResource(ApiResource):
method_decorators = [check_anon_protection, parse_repository_name]
def require_repo_permission(permission_class, scope, allow_public=False):
def wrapper(func):
@add_method_metadata('oauth2_scope', scope)
@wraps(func)
def wrapped(self, namespace, repository, *args, **kwargs):
logger.debug('Checking permission %s for repo: %s/%s', permission_class, namespace,
repository)
permission = permission_class(namespace, repository)
if (permission.can() or
(allow_public and
model.repository.repository_is_public(namespace, repository))):
return func(self, namespace, repository, *args, **kwargs)
raise Unauthorized()
return wrapped
return wrapper
require_repo_read = require_repo_permission(ReadRepositoryPermission, scopes.READ_REPO, True)
require_repo_write = require_repo_permission(ModifyRepositoryPermission, scopes.WRITE_REPO)
require_repo_admin = require_repo_permission(AdministerRepositoryPermission, scopes.ADMIN_REPO)
def require_user_permission(permission_class, scope=None):
def wrapper(func):
@add_method_metadata('oauth2_scope', scope)
@wraps(func)
def wrapped(self, *args, **kwargs):
user = get_authenticated_user()
if not user:
raise Unauthorized()
logger.debug('Checking permission %s for user %s', permission_class, user.username)
permission = permission_class(user.username)
if permission.can():
return func(self, *args, **kwargs)
raise Unauthorized()
return wrapped
return wrapper
require_user_read = require_user_permission(UserReadPermission, scopes.READ_USER)
require_user_admin = require_user_permission(UserAdminPermission, None)
require_fresh_user_admin = require_user_permission(UserAdminPermission, None)
def verify_not_prod(func):
@add_method_metadata('enterprise_only', True)
@wraps(func)
def wrapped(*args, **kwargs):
# Verify that we are not running on a production (i.e. hosted) stack. If so, we fail.
# This should never happen (because of the feature-flag on SUPER_USERS), but we want to be
# absolutely sure.
if app.config['SERVER_HOSTNAME'].find('quay.io') >= 0:
logger.error('!!! Super user method called IN PRODUCTION !!!')
raise NotFound()
return func(*args, **kwargs)
return wrapped
def require_fresh_login(func):
@add_method_metadata('requires_fresh_login', True)
@wraps(func)
def wrapped(*args, **kwargs):
user = get_authenticated_user()
if not user:
raise Unauthorized()
oauth_token = get_validated_oauth_token()
if oauth_token:
return func(*args, **kwargs)
logger.debug('Checking fresh login for user %s', user.username)
last_login = session.get('login_time', datetime.datetime.min)
valid_span = datetime.datetime.now() - datetime.timedelta(minutes=10)
if not user.password_hash or last_login >= valid_span:
return func(*args, **kwargs)
raise FreshLoginRequired()
return wrapped
def require_scope(scope_object):
def wrapper(func):
@add_method_metadata('oauth2_scope', scope_object)
@wraps(func)
def wrapped(*args, **kwargs):
return func(*args, **kwargs)
return wrapped
return wrapper
def validate_json_request(schema_name):
def wrapper(func):
@add_method_metadata('request_schema', schema_name)
@wraps(func)
def wrapped(self, *args, **kwargs):
schema = self.schemas[schema_name]
try:
json_data = request.get_json()
if json_data is None:
raise InvalidRequest('Missing JSON body')
validate(json_data, schema)
return func(self, *args, **kwargs)
except ValidationError as ex:
raise InvalidRequest(ex.message)
return wrapped
return wrapper
def request_error(exception=None, **kwargs):
data = kwargs.copy()
message = 'Request error.'
if exception:
message = exception.message
raise InvalidRequest(message, data)
def license_error(exception=None):
raise ExceedsLicenseException()
def log_action(kind, user_or_orgname, metadata=None, repo=None):
if not metadata:
metadata = {}
oauth_token = get_validated_oauth_token()
if oauth_token:
metadata['oauth_token_id'] = oauth_token.id
metadata['oauth_token_application_id'] = oauth_token.application.client_id
metadata['oauth_token_application'] = oauth_token.application.name
performer = get_authenticated_user()
model.log.log_action(kind, user_or_orgname, performer=performer, ip=request.remote_addr,
metadata=metadata, repository=repo)
def define_json_response(schema_name):
def wrapper(func):
@add_method_metadata('response_schema', schema_name)
@wraps(func)
def wrapped(self, *args, **kwargs):
schema = self.schemas[schema_name]
resp = func(self, *args, **kwargs)
if app.config['TESTING']:
try:
validate(resp, schema)
except ValidationError as ex:
raise InvalidResponse(ex.message)
return resp
return wrapped
return wrapper
import endpoints.api.billing
import endpoints.api.build
import endpoints.api.discovery
import endpoints.api.image
import endpoints.api.logs
import endpoints.api.organization
import endpoints.api.permission
import endpoints.api.prototype
import endpoints.api.repository
import endpoints.api.repositorynotification
import endpoints.api.repoemail
import endpoints.api.repotoken
import endpoints.api.robot
import endpoints.api.search
import endpoints.api.suconfig
import endpoints.api.superuser
import endpoints.api.tag
import endpoints.api.team
import endpoints.api.trigger
import endpoints.api.user
import endpoints.api.secscan