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# coding: utf8
from flask import Blueprint, request, current_app
from flask_restful import Resource, Api, abort
from flask_cors import CORS
from wtforms.fields.core import BooleanField
from ihatemoney.models import db, Project, Person, Bill
from ihatemoney.forms import ProjectForm, EditProjectForm, MemberForm, get_billform_for
from werkzeug.security import check_password_hash
from functools import wraps
api = Blueprint("api", __name__, url_prefix="/api")
CORS(api)
restful_api = Api(api)
def need_auth(f):
"""Check the request for basic authentication for a given project.
Return the project if the authorization is good, abort the request with a 401 otherwise
"""
@wraps(f)
def wrapper(*args, **kwargs):
auth = request.authorization
project_id = kwargs.get("project_id")
# Use Basic Auth
if auth and project_id and auth.username == project_id:
project = Project.query.get(auth.username)
if project and check_password_hash(project.password, auth.password):
# The whole project object will be passed instead of project_id
kwargs.pop("project_id")
return f(*args, project=project, **kwargs)
else:
# Use Bearer token Auth
auth_header = request.headers.get("Authorization", "")
auth_token = ""
try:
auth_token = auth_header.split(" ")[1]
except IndexError:
abort(401)
project_id = Project.verify_token(auth_token, token_type="non_timed_token")
if auth_token and project_id:
project = Project.query.get(project_id)
if project:
kwargs.pop("project_id")
return f(*args, project=project, **kwargs)
abort(401)
return wrapper
class ProjectsHandler(Resource):
def post(self):
form = ProjectForm(meta={"csrf": False})
if form.validate() and current_app.config.get("ALLOW_PUBLIC_PROJECT_CREATION"):
project = form.save()
db.session.add(project)
db.session.commit()
return project.id, 201
return form.errors, 400
class ProjectHandler(Resource):
method_decorators = [need_auth]
def get(self, project):
return project
def delete(self, project):
db.session.delete(project)
db.session.commit()
return "DELETED"
def put(self, project):
form = EditProjectForm(meta={"csrf": False})
if form.validate() and current_app.config.get("ALLOW_PUBLIC_PROJECT_CREATION"):
form.update(project)
db.session.commit()
return "UPDATED"
return form.errors, 400
class ProjectStatsHandler(Resource):
method_decorators = [need_auth]
def get(self, project):
return project.members_stats
class APIMemberForm(MemberForm):
""" Member is not disablable via a Form.
But we want Member.enabled to be togglable via the API.
"""
activated = BooleanField(false_values=("false", "", "False"))
def save(self, project, person):
person.activated = self.activated.data
return super(APIMemberForm, self).save(project, person)
class MembersHandler(Resource):
method_decorators = [need_auth]
def get(self, project):
return project.members
def post(self, project):
form = MemberForm(project, meta={"csrf": False})
if form.validate():
member = Person()
form.save(project, member)
db.session.commit()
return member.id, 201
return form.errors, 400
class MemberHandler(Resource):
method_decorators = [need_auth]
def get(self, project, member_id):
member = Person.query.get(member_id, project)
if not member or member.project != project:
return "Not Found", 404
return member
def put(self, project, member_id):
form = APIMemberForm(project, meta={"csrf": False}, edit=True)
if form.validate():
member = Person.query.get(member_id, project)
form.save(project, member)
db.session.commit()
return member
return form.errors, 400
def delete(self, project, member_id):
if project.remove_member(member_id):
return "OK"
return "Not Found", 404
class BillsHandler(Resource):
method_decorators = [need_auth]
def get(self, project):
return project.get_bills().all()
def post(self, project):
form = get_billform_for(project, True, meta={"csrf": False})
if form.validate():
bill = Bill()
form.save(bill, project)
db.session.add(bill)
db.session.commit()
return bill.id, 201
return form.errors, 400
class BillHandler(Resource):
method_decorators = [need_auth]
def get(self, project, bill_id):
bill = Bill.query.get(project, bill_id)
if not bill:
return "Not Found", 404
return bill, 200
def put(self, project, bill_id):
form = get_billform_for(project, True, meta={"csrf": False})
if form.validate():
bill = Bill.query.get(project, bill_id)
form.save(bill, project)
db.session.commit()
return bill.id, 200
return form.errors, 400
def delete(self, project, bill_id):
bill = Bill.query.delete(project, bill_id)
db.session.commit()
if not bill:
return "Not Found", 404
return "OK", 200
class TokenHandler(Resource):
method_decorators = [need_auth]
def get(self, project):
if not project:
return "Not Found", 404
token = project.generate_token()
return {"token": token}, 200
restful_api.add_resource(ProjectsHandler, "/projects")
restful_api.add_resource(ProjectHandler, "/projects/<string:project_id>")
restful_api.add_resource(TokenHandler, "/projects/<string:project_id>/token")
restful_api.add_resource(MembersHandler, "/projects/<string:project_id>/members")
restful_api.add_resource(
ProjectStatsHandler, "/projects/<string:project_id>/statistics"
)
restful_api.add_resource(
MemberHandler, "/projects/<string:project_id>/members/<int:member_id>"
)
restful_api.add_resource(BillsHandler, "/projects/<string:project_id>/bills")
restful_api.add_resource(
BillHandler, "/projects/<string:project_id>/bills/<int:bill_id>"
)
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