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from flask import Blueprint, request, jsonify, make_response 

from flask_restful import Api, Resource 

from http_status import HttpStatus 

from models import orm, NotificationCategory, NotificationCategorySchema, Notification, NotificationSchema 

from sqlalchemy.exc import SQLAlchemyError 

from helpers import PaginationHelper 

from flask_httpauth import HTTPBasicAuth 

from flask import g 

from models import User, UserSchema 

 

 

auth = HTTPBasicAuth() 

 

 

@auth.verify_password 

def verify_user_password(name, password): 

user = User.query.filter_by(name=name).first() 

if not user or not user.verify_password(password): 

return False 

g.user = user 

return True 

 

 

class AuthenticationRequiredResource(Resource): 

method_decorators = [auth.login_required] 

 

 

user_schema = UserSchema() 

service_blueprint = Blueprint('service', __name__) 

notification_category_schema = NotificationCategorySchema() 

notification_schema = NotificationSchema() 

service = Api(service_blueprint) 

 

 

class UserResource(AuthenticationRequiredResource): 

def get(self, id): 

user = User.query.get_or_404(id) 

result = user_schema.dump(user).data 

return result 

 

 

class UserListResource(Resource): 

@auth.login_required 

def get(self): 

pagination_helper = PaginationHelper( 

request, 

query=User.query, 

resource_for_url='service.userlistresource', 

key_name='results', 

schema=user_schema) 

result = pagination_helper.paginate_query() 

return result 

 

def post(self): 

user_dict = request.get_json() 

56 ↛ 57line 56 didn't jump to line 57, because the condition on line 56 was never true if not user_dict: 

response = {'user': 'No input data provided'} 

return response, HttpStatus.bad_request_400.value 

errors = user_schema.validate(user_dict) 

60 ↛ 61line 60 didn't jump to line 61, because the condition on line 60 was never true if errors: 

return errors, HttpStatus.bad_request_400.value 

user_name = user_dict['name'] 

existing_user = User.query.filter_by(name=user_name).first() 

64 ↛ 65line 64 didn't jump to line 65, because the condition on line 64 was never true if existing_user is not None: 

response = {'user': 'An user with the name {} already exists'.format(user_name)} 

return response, HttpStatus.bad_request_400.value 

try: 

user = User(name=user_name) 

error_message, password_ok = \ 

user.check_password_strength_and_hash_if_ok(user_dict['password']) 

71 ↛ 77line 71 didn't jump to line 77, because the condition on line 71 was never false if password_ok: 

user.add(user) 

query = User.query.get(user.id) 

dump_result = user_schema.dump(query).data 

return dump_result, HttpStatus.created_201.value 

else: 

return {"error": error_message}, HttpStatus.bad_request_400.value 

except SQLAlchemyError as e: 

orm.session.rollback() 

response = {"error": str(e)} 

return response, HttpStatus.bad_request_400.value 

 

 

class NotificationResource(AuthenticationRequiredResource): 

def get(self, id): 

notification = Notification.query.get_or_404(id) 

dumped_notification = notification_schema.dump(notification).data 

return dumped_notification 

 

def patch(self, id): 

notification = Notification.query.get_or_404(id) 

notification_dict = request.get_json(force=True) 

print(notification_dict) 

if 'message' in notification_dict and notification_dict['message'] is not None: 

notification_message = notification_dict['message'] 

if not Notification.is_message_unique(id=0, message=notification_message): 

response = {'error': 'A notification with the message {} already exists'.format(notification_message)} 

return response, HttpStatus.bad_request_400.value 

notification.message = notification_message 

if 'ttl' in notification_dict and notification_dict['ttl'] is not None: 

notification.duration = notification_dict['duration'] 

if 'displayed_times' in notification_dict and notification_dict['displayed_times'] is not None: 

notification.displayed_times = notification_dict['displayed_times'] 

if 'displayed_once' in notification_dict and notification_dict['displayed_once'] is not None: 

notification.displayed_once = notification_dict['displayed_once'] == 'true' 

dumped_notification, dump_errors = notification_schema.dump(notification) 

if dump_errors: 

return dump_errors, HttpStatus.bad_request_400.value 

validate_errors = notification_schema.validate(dumped_notification) 

if validate_errors: 

return validate_errors, HttpStatus.bad_request_400.value 

try: 

notification.update() 

return self.get(id) 

except SQLAlchemyError as e: 

orm.session.rollback() 

response = {"error": str(e)} 

return response, HttpStatus.bad_request_400.value 

 

def delete(self, id): 

notification = Notification.query.get_or_404(id) 

try: 

delete = notification.delete(notification) 

response = make_response() 

return response, HttpStatus.no_content_204.value 

except SQLAlchemyError as e: 

orm.session.rollback() 

response = {"error": str(e)} 

return response, HttpStatus.unauthorized_401.value 

 

 

class NotificationListResource(AuthenticationRequiredResource): 

def get(self): 

pagination_helper = PaginationHelper( 

request, 

query=Notification.query, 

resource_for_url='service.notificationlistresource', 

key_name='results', 

schema=notification_schema) 

pagination_result = pagination_helper.paginate_query() 

return pagination_result 

 

def post(self): 

notification_category_dict = request.get_json() 

if not notification_category_dict: 

response = {'message': 'No input data provided'} 

return response, HttpStatus.bad_request_400.value 

errors = notification_schema.validate(notification_category_dict) 

if errors: 

return errors, HttpStatus.bad_request_400.value 

notification_message = notification_category_dict['message'] 

if not Notification.is_message_unique(id=0, message=notification_message): 

response = {'error': 'A notification with the message {} already exists'.format(notification_message)} 

return response, HttpStatus.bad_request_400.value 

try: 

notification_category_name = notification_category_dict['notification_category']['name'] 

notification_category = NotificationCategory.query.filter_by(name=notification_category_name).first() 

if notification_category is None: 

# Create a new NotificationCategory 

notification_category = NotificationCategory(name=notification_category_name) 

orm.session.add(notification_category) 

# Now that we are sure we have a notification category, 

# we can create a new Notification 

notification = Notification( 

message=notification_message, 

ttl=notification_category_dict['ttl'], 

notification_category=notification_category) 

notification.add(notification) 

query = Notification.query.get(notification.id) 

dump_result = notification_schema.dump(query).data 

return dump_result, HttpStatus.created_201.value 

except SQLAlchemyError as e: 

orm.session.rollback() 

response = {"error": str(e)} 

return response, HttpStatus.bad_request_400.value 

 

 

class NotificationCategoryResource(AuthenticationRequiredResource): 

def get(self, id): 

notification_category = NotificationCategory.query.get_or_404(id) 

dump_result = notification_category_schema.dump(notification_category).data 

return dump_result 

 

def patch(self, id): 

notification_category = NotificationCategory.query.get_or_404(id) 

notification_category_dict = request.get_json() 

187 ↛ 188line 187 didn't jump to line 188, because the condition on line 187 was never true if not notification_category_dict: 

response = {'message': 'No input data provided'} 

return response, HttpStatus.bad_request_400.value 

errors = notification_category_schema.validate(notification_category_dict) 

191 ↛ 192line 191 didn't jump to line 192, because the condition on line 191 was never true if errors: 

return errors, HttpStatus.bad_request_400.value 

try: 

194 ↛ 201line 194 didn't jump to line 201, because the condition on line 194 was never false if 'name' in notification_category_dict and notification_category_dict['name'] is not None: 

notification_category_name = notification_category_dict['name'] 

196 ↛ 199line 196 didn't jump to line 199, because the condition on line 196 was never false if NotificationCategory.is_name_unique(id=id, name=notification_category_name): 

notification_category.name = notification_category_name 

else: 

response = {'error': 'A category with the name {} already exists'.format(notification_category_name)} 

return response, HttpStatus.bad_request_400.value 

notification_category.update() 

return self.get(id) 

except SQLAlchemyError as e: 

orm.session.rollback() 

response = {"error": str(e)} 

return response, HttpStatus.bad_request_400.value 

 

def delete(self, id): 

notification_category = NotificationCategory.query.get_or_404(id) 

try: 

notification_category.delete(notification_category) 

response = make_response() 

return response, HttpStatus.no_content_204.value 

except SQLAlchemyError as e: 

orm.session.rollback() 

response = {"error": str(e)} 

return response, HttpStatus.unauthorized_401.value 

 

 

class NotificationCategoryListResource(AuthenticationRequiredResource): 

def get(self): 

notification_categories = NotificationCategory.query.all() 

dump_results = notification_category_schema.dump(notification_categories, many=True).data 

return dump_results 

 

def post(self): 

print("Processing") 

notification_category_dict = request.get_json() 

229 ↛ 230line 229 didn't jump to line 230, because the condition on line 229 was never true if not notification_category_dict: 

response = {'message': 'No input data provided'} 

return response, HttpStatus.bad_request_400.value 

errors = notification_category_schema.validate(notification_category_dict) 

233 ↛ 234line 233 didn't jump to line 234, because the condition on line 233 was never true if errors: 

return errors, HttpStatus.bad_request_400.value 

notification_category_name = notification_category_dict['name'] 

if not NotificationCategory.is_name_unique(id=0, name=notification_category_name): 

response = {'error': 'A notification category with the name {} already exists'.format(notification_category_name)} 

return response, HttpStatus.bad_request_400.value 

try: 

notification_category = NotificationCategory(notification_category_name) 

notification_category.add(notification_category) 

query = NotificationCategory.query.get(notification_category.id) 

dump_result = notification_category_schema.dump(query).data 

return dump_result, HttpStatus.created_201.value 

except SQLAlchemyError as e: 

print("Error") 

print(e) 

orm.session.rollback() 

response = {"error": str(e)} 

return response, HttpStatus.bad_request_400.value 

 

 

service.add_resource(NotificationCategoryListResource, 

'/notification_categories/') 

service.add_resource(NotificationCategoryResource, 

'/notification_categories/<int:id>') 

service.add_resource(NotificationListResource, 

'/notifications/') 

service.add_resource(NotificationResource, 

'/notifications/<int:id>') 

service.add_resource(UserListResource, 

'/users/') 

service.add_resource(UserResource, 

'/users/<int:id>')