async def get_handler(request: web.Request):
try:
admins = None
if len(request.rel_url.query.keys()) == 0:
admins = await Admin.get_all(DB.get(request, table))
else:
admins = []
if 'id' in request.rel_url.query:
admin_id = request.rel_url.query.get('id')
Validate.validate_object_id(admin_id)
admin = await Admin.get_by_id(admin_id, DB.get(request, table))
if admin is not None:
admins.append(admin)
elif 'email' in request.rel_url.query:
admin_email = request.rel_url.query.get('email')
admins = await Admin.get_by_email(admin_email,
DB.get(request, table))
elif 'username' in request.rel_url.query:
admin_username = request.rel_url.query.get('username')
admins = await Admin.get_by_username(admin_username,
DB.get(request, table))
return web.json_response({
'data':
DB.format_documents(Bson.to_json(admins)),
'status_code':
200
})
except Exception as err:
return Error.handle(err)
async def get_handler(request: web.Request):
try:
if len(request.rel_url.query.keys()) == 0:
services = await Service.get_all(DB.get(request, table))
return web.json_response({
'data':
DB.format_documents(Bson.to_json(services)),
'status_code':
200
})
else:
services = []
if 'id' in request.rel_url.query:
Validate.validate_object_id(request.rel_url.query.get('id'))
service = await Service.get_by_id(
request.rel_url.query.get('id'), DB.get(request, table))
if service is not None:
services.append(service)
elif 'state' in request.rel_url.query:
services = await Service.get_by_state(
request.rel_url.query.get('state'), DB.get(request, table))
elif 'secure' in request.rel_url.query:
services = await Service.get_by_secure(
bool(request.rel_url.query.get('secure')),
DB.get(request, table))
return web.json_response({
'data':
DB.format_documents(Bson.to_json(services)),
'status_code':
200
})
except Exception as err:
return Error.handle(err)
async def get_handler(request: web.Request):
try:
response = []
if 'service_id' in request.rel_url.query:
Validate.validate_object_id(request.rel_url.query['service_id'])
service_id = request.rel_url.query['service_id']
response = await RequestValidator.get_by_service_id(
service_id, DB.get(request, table))
elif 'id' in request.rel_url.query:
Validate.validate_object_id(request.rel_url.query.get('id'))
req_validator = await RequestValidator.get_by_id(
request.rel_url.query.get('id'), DB.get(request, table))
if req_validator is not None:
response.append(req_validator)
elif 'method' in request.rel_url.query:
method = request.rel_url.query['method']
response = await RequestValidator.get_by_method(
method, DB.get(request, table))
else:
response = await RequestValidator.get_all(DB.get(request, table))
return web.json_response(
{
'status_code': 200,
'data': Bson.to_json(response)
}, status=200)
except Exception as err:
return Error.handle(err)
async def proxy(request: web.Request, handler: web.RequestHandler):
try:
req_start_time = time()
if pydash.starts_with(request.path_qs, '/raven'):
return await handler(request)
service = Regex.best_match(await Regex.get_matched_paths(request.path, DB.get(request, service_controller.table)))
await handle_service(service, request.remote)
rate_limiter_rules = await RateLimiter.get_rule_by_service_id(str(service['_id']), DB.get_redis(request))
rate_limiter_rule = rate_limiter_rules[0] if rate_limiter_rules else None
await handle_rate_limiter(request, str(service['_id']), rate_limiter_rule)
breakers = await CircuitBreaker.get_by_service_id(str(service['_id']), DB.get(request, circuit_breaker_controller.table))
breaker = breakers[0] if breakers else None
request_validators = await RequestValidator.get_by_service_id(str(service['_id']), DB.get(request, request_validator_controller.table))
request_validator = request_validators[0] if request_validators else None
endpoint_cachers = not pydash.is_empty(service) and await EndpointCacher.get_by_service_id(str(service['_id']), DB.get_redis(request)) or None
endpoint_cacher = endpoint_cachers[0] if endpoint_cachers else None
await handle_request_validator(request_validator, json.loads(await request.text()), request.method)
req, req_cache_hit = await handle_request(request, service, endpoint_cacher)
checks = []
if not pydash.is_empty(
breaker) and breaker['status'] == CircuitBreakerStatus.ON.name:
if req['status'] in breaker['status_codes']:
checks.append(handle_circuit_breaker(
breaker, service, request, req))
else:
await CircuitBreaker.incr_count(str(breaker['_id']), DB.get_redis(request))
queue_async_func.s({
'func': 'Service.advance_target',
'args': [str(service['_id']), f'mongo:{service_controller.table}'],
'kwargs': {}
}).apply_async()
req_finish_time = time()
req_elapsed_time = req_finish_time - req_start_time
checks.append(handle_insights(request, req, str(
service['_id']), req_elapsed_time, req_cache_hit))
await Async.all(checks)
return web.Response(
body=Bytes.decode_bytes(
req['body_bytes']),
status=req['status'],
content_type=req['content_type'],
headers=CIMultiDict(
pydash.omit(
req['headers'],
'Content-Type',
'Transfer-Encoding',
'Content-Encoding')))
except Exception as err:
return Error.handle(err)
async def handle_circuit_breaker(breaker: object, service: object, request: web.Request, req: object):
if req['status'] in breaker['status_codes']:
breaker_count = await CircuitBreaker.get_count(
str(breaker['_id']),
DB.get_redis(request)
)
if not breaker_count:
await CircuitBreaker.set_count(
str(breaker['_id']),
0,
breaker['period'],
DB.get_redis(request)
)
else:
failures_rate = breaker['tripped_count'] / int(breaker_count)
if failures_rate >= (1 - breaker['threshold']):
queued = await CircuitBreaker.get_queued(str(breaker['_id']), DB.get_redis(request))
if not queued or queued is 'False':
cooldown_eta = datetime.utcnow(
) + timedelta(seconds=breaker['cooldown'])
queue_async_func.s({'func': 'Service.update',
'args': [str(service['_id']),
{'state': ServiceState.DOWN.name},
f'mongo:{service_controller.table}'],
'kwargs': {}}).apply_async()
queue_async_func.s({
'func': 'CircuitBreaker.set_queued',
'args': [str(breaker['_id']), 'True', breaker['cooldown'], 'redis'],
'kwargs': {}
}).apply_async()
queue_async_func.s({'func': 'Service.update',
'args': [str(service['_id']),
{'state': ServiceState.UP.name},
f'mongo:{service_controller.table}'],
'kwargs': {}}).apply_async(eta=cooldown_eta)
queue_async_func.s({
'func': 'CircuitBreaker.set_queued',
'args': [str(breaker['_id']), 'False', breaker['cooldown'], 'redis'],
'kwargs': {}
}).apply_async(eta=cooldown_eta)
queue_async_func.s({'func': 'CircuitBreaker.update',
'args': [str(breaker['_id']),
{'tripped_count': 0},
f'mongo:{circuit_breaker_controller.table}'],
'kwargs': {}}).apply_async(eta=cooldown_eta)
events = await Event.get_by_circuit_breaker_id(str(breaker['_id']), DB.get(request, event_controller.table))
for event in events:
queue_async_func.s({
'func': 'Event.handle_event',
'args': [Bson.to_json(event)],
'kwargs': {}
}).apply_async()
await Async.all([
CircuitBreaker.incr_tripped_count(str(breaker['_id']), DB.get(
request, circuit_breaker_controller.table)),
CircuitBreaker.incr_count(str(breaker['_id']), DB.get_redis(request))
])
async def post_handler(request: web.Request):
try:
body = json.loads(await request.text())
Validate.validate_schema(body, insights_validator)
await Insights.create(body, DB.get(request, table),
DB.get(request, controller.table))
return web.json_response({
'message': 'Insight created',
'status_code': 200
})
except Exception as err:
return Error.handle(err)
async def post_handler(request: web.Request):
try:
ctx = json.loads(await request.text())
Validate.validate_schema(ctx, event_validator)
await Event.create(ctx, DB.get(request, table),
DB.get(request, controller.table))
return web.json_response({
'message': 'Event created',
'status_code': 200
})
except Exception as err:
return Error.handle(err)
async def create_handler(request: web.Request):
try:
body = json.loads(await request.text())
Validate.validate_schema(body, request_validator)
await RequestValidator.create(request_validator.normalized(body),
DB.get(request, table),
DB.get(request, controller.table))
return web.json_response({
'message': 'Request validator created',
'status_code': 200
})
except Exception as err:
return Error.handle(err)
async def login_handler(request: web.Request):
try:
ctx = json.loads(await request.text())
verified = await Admin.verify_password(ctx['username'],
ctx['password'],
DB.get(request, table))
if not verified:
raise Exception({'message': 'Unathorized', 'status_code': 401})
admin = await Admin.get_by_username(ctx['username'],
DB.get(request, table))
sanitized_admin = pydash.omit(admin, 'password')
return web.json_response(
{'data': DB.format_document(Bson.to_json(sanitized_admin))})
except Exception as err:
return Error.handle(err)
async def get_handler(request: web.Request):
try:
circuit_breakers = None
if len(request.rel_url.query.keys()) == 0:
circuit_breakers = await CircuitBreaker.get_all(DB.get(request, table))
else:
circuit_breakers = []
if 'id' in request.rel_url.query:
Validate.validate_object_id(request.rel_url.query.get('id'))
circuit_breaker = await CircuitBreaker.get_by_id(request.rel_url.query.get('id'), DB.get(request, table))
if circuit_breaker is not None:
circuit_breakers.append(circuit_breaker)
elif 'service_id' in request.rel_url.query:
Validate.validate_object_id(
request.rel_url.query.get('service_id'))
circuit_breakers = await CircuitBreaker.get_by_service_id(request.rel_url.query.get('service_id'), DB.get(request, table))
elif 'status_code' in request.rel_url.query:
circuit_breakers = await CircuitBreaker.get_by_status_code(int(request.rel_url.query.get('status_code')), DB.get(request, table))
elif 'method' in request.rel_url.query:
circuit_breakers = await CircuitBreaker.get_by_method(request.rel_url.query.get('method'), DB.get(request, table))
elif 'threshold' in request.rel_url.query:
circuit_breakers = await CircuitBreaker.get_by_threshold(float(request.rel_url.query.get('threshold')), DB.get(request, table))
return web.json_response({
'data': DB.format_documents(Bson.to_json(circuit_breakers)),
'status_code': 200
})
except Exception as err:
return Error.handle(err)
async def delete_handler(request: web.Request):
try:
Validate.validate_object_id(request.rel_url.query.get('id'))
await Service.remove(request.rel_url.query.get('id'),
DB.get(request, table))
return web.json_response({'message': 'service deleted'})
except Exception as err:
return Error.handle(err)
async def post_handler(request: web.Request):
try:
ctx = json.loads(await request.text())
Validate.validate_schema(ctx, admin_validator)
await Admin.create(ctx, DB.get(request, table))
return web.json_response({
'message': 'Admin created',
})
except Exception as err:
return Error.handle(err)
async def post_handler(request: web.Request):
try:
ctx = json.loads(await request.text())
Validate.validate_schema(ctx, circuit_breaker_validator)
await CircuitBreaker.create(circuit_breaker_validator.normalized(ctx), DB.get(request, table), DB.get(request, controller.table))
return web.json_response({
'message': 'Circuit breaker created',
'status_code': 200
})
except Exception as err:
return Error.handle(err)
async def delete_handler(request: web.Request):
try:
id = request.rel_url.query.get('id')
Validate.validate_object_id(id)
await RequestValidator.delete(id, DB.get(request, table))
return web.json_response({
'message': 'request validator deleted',
'statusCode': 200
})
except Exception as err:
return Error.handle(err)
async def delete_handler(request: web.Request):
try:
service_id = request.rel_url.query.get('id')
Validate.validate_object_id(service_id)
await Insights.remove(service_id, DB.get(request, table))
return web.json_response({
'message': 'insight deleted',
'status_code': 200
})
except Exception as err:
return Error.handle(err)
async def post_handler(request: web.Request):
try:
ctx = json.loads(await request.text())
Validate.validate_schema(ctx, service_validator)
await Service.create(service_validator.normalized(ctx),
DB.get(request, table))
return web.json_response({
'message': 'service created',
})
except Exception as err:
return Error.handle(err)
async def patch_handler(request: web.Request):
try:
ctx = json.loads(await request.text())
circuit_breaker_id = request.rel_url.query['id']
Validate.validate_schema(ctx, circuit_breaker_validator)
Validate.validate_object_id(circuit_breaker_id)
await CircuitBreaker.update(circuit_breaker_id, pydash.omit(ctx, 'id'), DB.get(request, table))
return web.json_response({
'message': 'Circuit breaker updated',
})
except Exception as err:
return Error.handle(err)
async def patch_handler(request: web.Request):
try:
ctx = json.loads(await request.text())
admin_id = request.rel_url.query['id']
Validate.validate_schema(ctx, admin_validator)
Validate.validate_object_id(admin_id)
await Admin.update(admin_id, ctx, DB.get(request, table))
return web.json_response({
'message': 'Admin updated',
})
except Exception as err:
return Error.handle(err)
async def patch_handler(request: web.Request):
try:
ctx = json.loads(await request.text())
service_id = request.rel_url.query.get('id')
Validate.validate_object_id(service_id)
Validate.validate_schema(ctx, service_validator)
await Service.update(service_id, ctx, DB.get(request, table))
return web.json_response({
'message': 'service updated',
})
except Exception as err:
return Error.handle(err)
async def update_handler(request: web.Request):
try:
id = request.rel_url.query['id']
body = json.loads(await request.text())
Validate.validate_object_id(id)
Validate.validate_schema(body, request_validator)
await RequestValidator.update(id, body, DB.get(request, table))
return web.json_response({
'message': 'request validator updated',
'status_code': 200
})
except Exception as err:
return Error.handle(err)
async def patch_handler(request: web.Request):
try:
ctx = json.loads(await request.text())
service_id = request.rel_url.query['id']
Validate.validate_object_id(service_id)
Validate.validate_schema(ctx, insights_validator)
await Insights.update(service_id, pydash.omit(ctx, 'id'),
DB.get(request, table))
return web.json_response({
'message': 'insight updated',
})
except Exception as err:
return Error.handle(err)
async def get_handler(request: web.Request):
try:
if len(request.rel_url.query.keys()) == 0:
insights = await Insights.get_all(DB.get(request, table))
else:
insights = []
if 'id' in request.rel_url.query:
insight = await Insights.get_by_id(
request.rel_url.query.get('id'), DB.get(request, table))
if insight is not None:
insights.append(insight)
elif 'remote_ip' in request.rel_url.query:
insights = await Insights.get_by_remote_ip(
request.rel_url.query.get('remote_ip'),
DB.get(request, table))
elif 'status_code' in request.rel_url.query:
insights = await Insights.get_by_status_code(
request.rel_url.query.get('status_code'),
DB.get(request, table))
elif 'path' in request.rel_url.query:
insights = await Insights.get_by_path(
request.rel_url.query.get('path'), DB.get(request, table))
elif 'method' in request.rel_url.query:
insights = await Insights.get_by_method(
request.rel_url.query.get('method'),
DB.get(request, table))
elif 'service_id' in request.rel_url.query:
insights = await Insights.get_by_service_id(
request.rel_url.query.get('service_id'),
DB.get(request, table))
elif 'scheme' in request.rel_url.query:
insights = await Insights.get_by_scheme(
request.rel_url.query.get('scheme'),
DB.get(request, table))
return web.json_response({
'data':
DB.format_documents(Bson.to_json(insights)),
'status_code':
200
})
except Exception as err:
return Error.handle(err)
async def auth_middleware(request: web.Request, handler: web.RequestHandler):
try:
if '/admin/login' not in request.path_qs:
err = {'message': 'Unauthorized!', 'status_code': 401}
token = request.headers.get(TOKEN_HEADER_KEY)
if not token:
raise Exception(err)
token_context = Token.decode(token)
admin = await Admin.get_by_id(token_context['_id'],
DB.get(request))
if not admin or 'token' not in admin or admin['token'] != token:
raise Exception(err)
return await handler(request)
except Exception as err:
return Error.handle(err)
