From ba16a512f353e154e1033af2d3b98c6a0215405a Mon Sep 17 00:00:00 2001
From: Alexis Lahouze <xals@lahouze.org>
Date: Mon, 31 Aug 2015 10:55:05 +0200
Subject: [PATCH] Add user model.

---
 accountant/api/models/users.py                | 69 +++++++++++++++++++
 .../versions/1232daf66ac_add_user_support.py  | 34 +++++++++
 2 files changed, 103 insertions(+)
 create mode 100644 accountant/api/models/users.py
 create mode 100644 migrations/versions/1232daf66ac_add_user_support.py

diff --git a/accountant/api/models/users.py b/accountant/api/models/users.py
new file mode 100644
index 0000000..5235647
--- /dev/null
+++ b/accountant/api/models/users.py
@@ -0,0 +1,69 @@
+"""
+    This file is part of Accountant.
+
+    Accountant is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Accountant is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with Accountant.  If not, see <http://www.gnu.org/licenses/>.
+"""
+# vim: set tw=80 ts=4 sw=4 sts=4:
+from passlib.hash import sha256_crypt
+from itsdangerous import (TimedJSONWebSignatureSerializer as Serializer,
+                          BadSignature, SignatureExpired)
+
+from flask import current_app as app
+
+from flask.ext.login import UserMixin
+
+from sqlalchemy import true
+
+from accountant import db
+
+
+class User(UserMixin, db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    email = db.Column(db.String(200), nullable=False, unique=True, index=True)
+    password = db.Column(db.String(100), nullable=True)
+    active = db.Column(db.Boolean, nullable=False, default=True,
+                       server_default=true())
+
+    @property
+    def is_active(self):
+        return self.active
+
+    @classmethod
+    def query(cls, session):
+        return session.query(cls)
+
+    @classmethod
+    def hash_password(cls, password):
+        return sha256_crypt.encrypt(password)
+
+    def verify_password(self, password):
+        return sha256_crypt.verify(password, self.password)
+
+    def generate_auth_token(self, expiration=600):
+        serializer = Serializer(app.config['SECRET_KEY'], expires_in=expiration)
+        return serializer.dumps({'id': self.id})
+
+    @classmethod
+    def verify_auth_token(cls, session, token):
+        serializer = Serializer(app.config['SECRET_KEY'])
+
+        try:
+            data = serializer.loads(token)
+        except SignatureExpired:
+            return None
+        except BadSignature:
+            return None
+
+        user = cls.query(session).get(data['id'])
+        return user
diff --git a/migrations/versions/1232daf66ac_add_user_support.py b/migrations/versions/1232daf66ac_add_user_support.py
new file mode 100644
index 0000000..bbc6bbb
--- /dev/null
+++ b/migrations/versions/1232daf66ac_add_user_support.py
@@ -0,0 +1,34 @@
+"""Add user support.
+
+Revision ID: 1232daf66ac
+Revises: 144929e0f5f
+Create Date: 2015-08-31 10:24:40.578432
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '1232daf66ac'
+down_revision = '144929e0f5f'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('user',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('email', sa.String(length=200), nullable=False),
+    sa.Column('password', sa.String(length=100), nullable=True),
+    sa.Column('active', sa.Boolean(), server_default=sa.text('true'), nullable=False),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_user_email'), 'user', ['email'], unique=True)
+    ### end Alembic commands ###
+
+
+def downgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_user_email'), table_name='user')
+    op.drop_table('user')
+    ### end Alembic commands ###