added login and logout of users

ordr2/templates/account/login.jinja2

@@ -0,0 +1,39 @@
+{% extends "ordr2:templates/layout.jinja2" %}
+
+{% block title %} Ordr | Login Failed {% endblock title %}
+
+{% block content %}
+<div class="row justify-content-center">
+    <div class="col-8">
+
+        <h1>Try again…</h1>
+        <p class="alert alert-danger">You entered the wrong username or password.</p>
+
+        <form action="{{ request.resource_url(request.root, 'account', 'login') }}" method="POST" id="login-form">
+            <input type="hidden" name="csrf_token" value="{{ get_csrf_token() }}">
+            <div class="form-group row">
+                <label for="username" class="col-2">Username</label>
+                <div class="col-6">
+                    <input name="username" id="username" type="text" class="form-control">
+                </div>
+            </div>
+            <div class="form-group row">
+                <label for="password" class="col-2">Password</label>
+                <div class="col-6">
+                    <input name="password" id="password>" type="password" class="form-control">
+                </div>
+            </div>
+            <div class="form-group row">
+                <div class="col-2"></div>
+                <div class="col-6">
+                    <button type="submit" class="btn btn-sm btn-primary">Log in</button>
+                </div>
+            </div>
+        </form>
+
+        <p>
+            If you forgot your password you can <a href="{{ request.resource_url(context, 'forgot-password') }}">reset it</a>.
+        </p>
+    </div>
+</div>
+{% endblock content %}

ordr2/templates/layout.jinja2

@@ -33,7 +33,9 @@
                 <ul class="navbar-nav mr-auto">
                     <li class="nav-item {{ 'active' if request.context.nav_section == 'orders' }}"><a class="nav-link" href="{{ request.resource_url(request.root, 'orders') }}">Orders</a></li>
                     <li class="nav-item {{ 'active' if request.context.nav_section == 'root' and request.view_name == 'faq' }}"><a class="nav-link" href="{{ request.resource_url(request.root, 'faq') }}">FAQs</a></li>
-                    <li class="nav-item {{ 'active' if request.context.nav_section == 'admin' }}"><a class="nav-link" href="{{ request.resource_url(request.root, 'admin') }}">Admin</a></li>
+                    {% if request.user.role.name == 'ADMIN' %}
+                        <li class="nav-item {{ 'active' if request.context.nav_section == 'admin' }}"><a class="nav-link" href="{{ request.resource_url(request.root, 'admin') }}">Admin</a></li>
+                    {% endif %}
                 </ul>
 
                 <!-- account stuff on the right -->
@@ -60,7 +62,7 @@
                 </ul>
 
                 <!-- login form on the right -->
-                <form action="{{ request.resource_url(request.root, 'account', 'login') }}" method="POST" class="login-form form-inline">
+                <form action="{{ request.resource_url(request.root, 'account', 'login') }}" method="POST" id="login-form" class="form-inline">
                   <input type="hidden" name="csrf_token" value="{{ get_csrf_token() }}">
                   <input name="username" type="text" placeholder="Username" class="form-control form-control-sm">
                   <input name="password" type="password" placeholder="Password" class="form-control form-control-sm">

ordr2/views/account.py

@@ -1,7 +1,11 @@
 ''' account registration, login, logout and settings '''
 
+from pyramid.httpexceptions import HTTPFound
+from pyramid.security import remember, forget
 from pyramid.view import view_config
 
+from ordr2.models import User
+
 
 @view_config(
     context='ordr2:resources.account.AccountResource',
@@ -12,3 +16,39 @@ from pyramid.view import view_config
 def register(context, request):
     ''' the new user registraion page '''
     return {}
+
+
+@view_config(
+    context='ordr2:resources.account.AccountResource',
+    name='login',
+    permission='login',
+    request_method='POST',
+    renderer='ordr2:templates/account/login.jinja2'
+    )
+def login(context, request):
+    ''' loging in a user '''
+    username = request.POST.get('username')
+    password = request.POST.get('password')
+
+    # Form validation is not done for login forms,
+    # either the data represents a user or not.
+    user = request.dbsession.query(User).filter_by(username=username).first()
+    if user is not None:
+        if user.is_active and user.check_password(password):
+            headers = remember(request, user.id)
+            return HTTPFound(
+                request.resource_path(request.root, 'orders'),
+                headers=headers
+                )
+    return {}
+
+
+@view_config(
+    context='ordr2:resources.account.AccountResource',
+    name='logout',
+    permission='logout'
+    )
+def logout(context, request):
+    ''' log out an user '''
+    headers = forget(request)
+    return HTTPFound(request.resource_url(request.root), headers=headers)

tests/_functional/__init__.py

@@ -5,19 +5,41 @@ import pytest
 import transaction
 import webtest
 
-from .. import APP_SETTINGS, create_users
-
-
-# some path mangling to get the path to passlib.ini
-currrent_dir = os.path.dirname(__file__)
-ordr2_dir = os.path.dirname(os.path.dirname(currrent_dir))
-passlib_config_path = os.path.join(ordr2_dir, 'passlib.ini')
+from .. import APP_SETTINGS, create_users, get_user
 
 
 WEBTEST_SETTINGS = APP_SETTINGS.copy()
 # WEBTEST_SETTINGS.update({ })
 
 
+class CustomTestApp(webtest.TestApp):
+    ''' adds login and logout methods to webtest.TestApp '''
+
+    def reset(self):
+        ''' logs out any user and resets the state of the application '''
+        self.logout()
+        super().reset()
+
+
+    def logout(self):
+        ''' perfomes a logout of a user '''
+        self.get('/account/logout')
+
+
+    def login(self, role_name):
+        ''' perfomes a logs in of a user '''
+        # do a logout first, testapp fixture scope is on module level
+        self.logout()
+        user = get_user(role_name)
+
+        response = self.get('/')
+        login_form = response.forms['login-form']
+        login_form.set('username', user.username)
+        login_form.set('password', user.first_name)
+        login_form.submit()
+
+
+
 @pytest.fixture(scope='module')
 def testapp():
     ''' fixture for using webtest '''
@@ -26,7 +48,7 @@ def testapp():
     from ordr2 import main
 
     app = main({}, **WEBTEST_SETTINGS)
-    testapp = webtest.TestApp(app)
+    testapp = CustomTestApp(app)
 
     session_factory = app.registry['dbsession_factory']
     engine = session_factory.kw['bind']
@@ -37,6 +59,6 @@ def testapp():
         dbsession = get_tm_session(session_factory, transaction.manager)
         create_users(dbsession)
 
-        yield testapp
+    yield testapp
 
     Base.metadata.drop_all(engine)

tests/_functional/account.py

@@ -1,6 +1,9 @@
 ''' tests for the common layout and simple (static)'''
 
+import pytest
+
 from . import testapp
+from .. import get_user
 
 
 def test_account_register_unauthenticated(testapp):
@@ -18,3 +21,81 @@ def test_account_register_unauthenticated(testapp):
     assert 'active' in li_two['class']
     assert li_two.find('a').text == 'Register'
 
+
+@pytest.mark.parametrize('role_name', ['user', 'purchaser', 'admin', ])
+def test_account_login_for_active_users(testapp, role_name):
+    ''' check if user login works '''
+    testapp.reset()
+
+    user = get_user(role_name)
+    root = testapp.get('/')
+    login_form = root.forms['login-form']
+    login_form.set('username', user.username)
+    login_form.set('password', user.first_name)
+    response = login_form.submit()
+
+    # a login leads to a redirect
+    assert response.status == '302 Found'
+    assert response.location.endswith('/orders')
+
+    # the layout should reflect the login
+    response = testapp.get('/faq')
+    assert '<!-- user is logged in -->' in response
+    assert 'id="login-form"' not in response
+    assert 'Logged in as <span>{}</span>'.format(user.username) in response
+
+
+@pytest.mark.parametrize('role_name', ['unvalidated', 'new', 'inactive'])
+def test_account_login_for_inactive_users(testapp, role_name):
+    ''' check if user login works '''
+    testapp.reset()
+
+    user = get_user(role_name)
+    root = testapp.get('/')
+    login_form = root.forms['login-form']
+    login_form.set('username', user.username)
+    login_form.set('password', user.first_name)
+    response = login_form.submit()
+
+    assert '<!-- No logged in user -->' in response
+    assert 'id="login-form' in response
+    assert 'Logged in as <span>{}</span>'.format(user.username) not in response
+    assert 'You entered the wrong username or password' in response
+
+
+@pytest.mark.parametrize(
+    'username, password', [
+        ('EricIdle', 'wrong password'),
+        ('unknown user', 'Eric'),
+        ('unknown user', 'unknown password')
+        ]
+    )
+def test_account_login_fails(testapp, username, password):
+    ''' check if user login works '''
+    testapp.reset()
+
+    root = testapp.get('/')
+    login_form = root.forms['login-form']
+    login_form.set('username', username)
+    login_form.set('password', password)
+    response = login_form.submit()
+
+    assert '<!-- No logged in user -->' in response
+    assert 'id="login-form' in response
+    assert 'Logged in as <span>{}</span>'.format(username) not in response
+    assert 'You entered the wrong username or password' in response
+
+
+def test_account_login_only_by_post(testapp):
+    testapp.reset()
+
+
+def test_account_logout_works(testapp):
+    ''' check if a user can log out '''
+    testapp.reset()
+
+    testapp.login('user')
+    response = testapp.get('/account/logout').follow()
+
+    assert '<!-- No logged in user -->' in response
+    assert 'id="login-form' in response

tests/_functional/layout_and_pages.py

@@ -3,6 +3,8 @@
 from . import testapp
 
 
+# tests for layout template
+
 def test_layout_unauthenticated_user(testapp):
     ''' test the layout template elements for unauthenticated users
 
@@ -13,8 +15,42 @@ def test_layout_unauthenticated_user(testapp):
     response = testapp.get('/faq')
 
     assert '<!-- No logged in user -->' in response
-    assert 'class="login-form' in response
+    assert 'id="login-form' in response
+
+
+def test_layout_authenticated_user(testapp):
+    ''' test the layout template elements for unauthenticated users
+
+    The '/faq' path is used; '/' will redirect on authenticated users
+    '''
+    testapp.reset()
+    testapp.login('user')
+
+    response = testapp.get('/faq')
+
+    assert '<!-- user is logged in -->' in response
+    assert 'id="login-form"' not in response
+    assert 'Admin</a></li>' not in response
+    assert 'Logged in as <span>TerryGilliam</span>' in response
+
+
+def test_layout_authenticated_admin(testapp):
+    ''' test the layout template elements for unauthenticated users
+
+    The '/faq' path is used; '/' will redirect on authenticated users
+    '''
+    testapp.reset()
+    testapp.login('admin')
+
+    response = testapp.get('/faq')
+
+    assert '<!-- user is logged in -->' in response
+    assert 'id="login-form"' not in response
+    assert 'Admin</a></li>' in response
+    assert 'Logged in as <span>TerryJones</span>' in response
+
 
+# tests for simple pages
 
 def test_page_welcome_unauthenticated(testapp):
     ''' test the welcome page for a unauthenticated user '''