From cc44c4056e631b3b9a365057b4f7ea5993ebe9c0 Mon Sep 17 00:00:00 2001
From: Gardient <gardient@users.noreply.github.com>
Date: Sun, 19 Sep 2021 22:15:08 +0300
Subject: [PATCH] implements login view

---
 api/__init__.py          |  6 +++++-
 api/login/__init__.py    |  3 +++
 api/login/models.py      |  4 ++++
 api/login/serializers.py | 11 +++++++++++
 api/login/views.py       | 23 +++++++++++++++++++++++
 5 files changed, 46 insertions(+), 1 deletion(-)
 create mode 100644 api/login/__init__.py
 create mode 100644 api/login/models.py
 create mode 100644 api/login/serializers.py
 create mode 100644 api/login/views.py

diff --git a/api/__init__.py b/api/__init__.py
index 1a9564c..2a94ba9 100644
--- a/api/__init__.py
+++ b/api/__init__.py
@@ -32,7 +32,11 @@ def register_extensions(app: Flask):
 
 def register_blueprints(app: Flask):
     """Register Flask blueprints."""
-    pass
+    api_blueprint = Blueprint('api', __name__, url_prefix='/api')
+
+    api_blueprint.register_blueprint(login.views.blueprint, url_prefix='/login')
+
+    app.register_blueprint(api_blueprint)
 
 
 def register_errorhandlers(app: Flask):
diff --git a/api/login/__init__.py b/api/login/__init__.py
new file mode 100644
index 0000000..b069c0e
--- /dev/null
+++ b/api/login/__init__.py
@@ -0,0 +1,3 @@
+"""API Login"""
+
+from . import views
diff --git a/api/login/models.py b/api/login/models.py
new file mode 100644
index 0000000..0b3ae19
--- /dev/null
+++ b/api/login/models.py
@@ -0,0 +1,4 @@
+class TokenResponse(object):
+    def __init__(self, token: str) -> None:
+        super().__init__()
+        self.token = token
diff --git a/api/login/serializers.py b/api/login/serializers.py
new file mode 100644
index 0000000..93cd625
--- /dev/null
+++ b/api/login/serializers.py
@@ -0,0 +1,11 @@
+from marshmallow import Schema, fields
+
+class LoginSchema(Schema):
+    username = fields.Str()
+    password = fields.Str(load_only=True)
+
+class TokenResponseSchema(Schema):
+    token = fields.Str()
+
+login_schema = LoginSchema()
+token_response_schema = TokenResponseSchema()
diff --git a/api/login/views.py b/api/login/views.py
new file mode 100644
index 0000000..536a6bc
--- /dev/null
+++ b/api/login/views.py
@@ -0,0 +1,23 @@
+from flask import Blueprint, current_app
+from flask_jwt_extended import jwt_required, create_access_token
+from flask_apispec import use_kwargs, marshal_with
+
+from api.exceptions import BadRequestException
+import api.constants as constants
+
+from .models import TokenResponse
+from .serializers import login_schema, token_response_schema
+
+blueprint = Blueprint('login', __name__)
+
+
+@blueprint.route('', methods=['POST'])
+@jwt_required(optional=True)
+@use_kwargs(login_schema)
+@marshal_with(token_response_schema)
+def login_user(username, password, **kwargs):
+    print(f'user: {username}; pass: {password}; expected:{current_app.config[constants.API_PASS]}')
+    if username == constants.API_USER and password == current_app.config[constants.API_PASS]:
+        return TokenResponse(create_access_token(identity=username, fresh=True))
+    else:
+        raise BadRequestException("Wrong combination of username and password")