Initial work on #74. (#514)

* Initial work on #74.

* Fixing tests.

* Adding migration script.

* Excluding migrations from coverage report.

.coveragerc

@@ -1,2 +1,4 @@
 [report]
 include = lemur/*.py
+omit = lemur/migrations/*
+

lemur/certificates/models.py

@@ -79,6 +79,7 @@ class Certificate(db.Model):
                             secondaryjoin=id == certificate_replacement_associations.c.replaced_certificate_id,  # noqa
                             backref='replaced')
 
+    views = relationship("View", backref="certificate")
     endpoints = relationship("Endpoint", backref='certificate')
 
     def __init__(self, **kwargs):

lemur/certificates/service.py

@@ -19,6 +19,7 @@ from lemur.destinations.models import Destination
 from lemur.notifications.models import Notification
 from lemur.authorities.models import Authority
 from lemur.domains.models import Domain
+from lemur.users.models import View
 
 from lemur.roles.models import Role
 from lemur.roles import service as role_service
@@ -129,6 +130,19 @@ def update(cert_id, owner, description, notify, destinations, notifications, rep
     return database.update(cert)
 
 
+def log_private_key_view(certificate, user):
+    """
+    Creates a record each time a certificates private key is viewed.
+
+    :param certificate:
+    :param user:
+    :return:
+    """
+    view = View(user_id=user.id, certificate_id=certificate.id)
+    database.add(view)
+    database.commit()
+
+
 def create_certificate_roles(**kwargs):
     # create an role for the owner and assign it
     owner_role = role_service.get_by_name(kwargs['owner'])

lemur/certificates/views.py

@@ -437,17 +437,19 @@ class CertificatePrivateKey(AuthenticatedResource):
         if not cert:
             return dict(message="Cannot find specified certificate"), 404
 
+        if not g.current_user.is_admin:
             owner_role = role_service.get_by_name(cert.owner)
             permission = CertificatePermission(cert.id, owner_role, [x.name for x in cert.roles])
 
-        if permission.can():
+            if not permission.can():
+                return dict(message='You are not authorized to view this key'), 403
+
+        service.log_private_key_view(cert, g.current_user)
         response = make_response(jsonify(key=cert.private_key), 200)
         response.headers['cache-control'] = 'private, max-age=0, no-cache, no-store'
         response.headers['pragma'] = 'no-cache'
         return response
 
-        return dict(message='You are not authorized to view this key'), 403
-
 
 class Certificates(AuthenticatedResource):
     def __init__(self):
@@ -908,45 +910,40 @@ class CertificateExport(AuthenticatedResource):
         """
         cert = service.get(certificate_id)
 
-        owner_role = role_service.get_by_name(cert.owner)
-        permission = CertificatePermission(cert.id, owner_role, [x.name for x in cert.roles])
+        if not cert:
+            return dict(message="Cannot find specified certificate"), 404
 
-        options = data['plugin']['plugin_options']
         plugin = data['plugin']['plugin_object']
 
         if plugin.requires_key:
-            if cert.private_key:
-                if permission.can():
-                    extension, passphrase, data = plugin.export(cert.body, cert.chain, cert.private_key, options)
+            if not cert.private_key:
+                return dict(
+                    message='Unable to export certificate, plugin: {0} requires a private key but no key was found.'.format(
+                        plugin.slug))
+
             else:
+                if not g.current_user.is_admin:
+                    owner_role = role_service.get_by_name(cert.owner)
+                    permission = CertificatePermission(cert.id, owner_role, [x.name for x in cert.roles])
+
+                    if not permission.can():
                         return dict(message='You are not authorized to export this certificate.'), 403
-            else:
-                return dict(message='Unable to export certificate, plugin: {0} requires a private key but no key was found.'.format(plugin.slug))
-        else:
+
+        options = data['plugin']['plugin_options']
+
+        service.log_private_key_view(cert, g.current_user)
         extension, passphrase, data = plugin.export(cert.body, cert.chain, cert.private_key, options)
 
         # we take a hit in message size when b64 encoding
         return dict(extension=extension, passphrase=passphrase, data=base64.b64encode(data).decode('utf-8'))
 
 
-class CertificateClone(AuthenticatedResource):
-    def __init__(self):
-        self.reqparse = reqparse.RequestParser()
-        super(CertificateExport, self).__init__()
-
-    @validate_schema(None, certificate_output_schema)
-    def get(self, certificate_id):
-
-        pass
-
-
 api.add_resource(CertificatesList, '/certificates', endpoint='certificates')
 api.add_resource(Certificates, '/certificates/<int:certificate_id>', endpoint='certificate')
 api.add_resource(CertificatesStats, '/certificates/stats', endpoint='certificateStats')
 api.add_resource(CertificatesUpload, '/certificates/upload', endpoint='certificateUpload')
 api.add_resource(CertificatePrivateKey, '/certificates/<int:certificate_id>/key', endpoint='privateKeyCertificates')
 api.add_resource(CertificateExport, '/certificates/<int:certificate_id>/export', endpoint='exportCertificate')
-api.add_resource(CertificateClone, '/certificates/<int:certificate_id>/clone', endpoint='cloneCertificate')
 api.add_resource(NotificationCertificatesList, '/notifications/<int:notification_id>/certificates',
                  endpoint='notificationCertificates')
 api.add_resource(CertificatesReplacementsList, '/certificates/<int:certificate_id>/replacements',

lemur/factory.py

@@ -94,6 +94,7 @@ def configure_app(app, config=None):
     if config and config != 'None':
         app.config.from_object(from_file(config))
 
+    else:
         try:
             app.config.from_envvar("LEMUR_CONF")
         except RuntimeError:
@@ -103,6 +104,30 @@ def configure_app(app, config=None):
             else:
                 app.config.from_object(from_file(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'default.conf.py')))
 
+    validate_conf(app)
+
+
+def validate_conf(app):
+    """
+    There are a few configuration variables that are 'required' by Lemur. Here
+    we validate those required variables are set.
+    """
+    required_vars = [
+        'LEMUR_SECURITY_TEAM_EMAIL',
+        'LEMUR_DEFAULT_ORGANIZATIONAL_UNIT',
+        'LEMUR_DEFAULT_ORGANIZATION',
+        'LEMUR_DEFAULT_LOCATION',
+        'LEMUR_DEFAULT_COUNTRY',
+        'LEMUR_DEFAULT_STATE',
+        'SQLALCHEMY_DATABASE_URI'
+    ]
+
+    for var in required_vars:
+        if not app.config.get(var):
+            raise Exception("Required variable {var} is not set, ensure that it is set in Lemur's configuration file".format(
+                var=var
+            ))
+
 
 def configure_extensions(app):
     """

lemur/migrations/versions/6d6151f5f307_.py

@@ -0,0 +1,36 @@
+"""Adding private key auditing.
+
+Revision ID: 6d6151f5f307
+Revises: 932525b82f1a
+Create Date: 2016-11-18 16:08:12.191959
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '6d6151f5f307'
+down_revision = '932525b82f1a'
+
+from alembic import op
+import sqlalchemy as sa
+
+from sqlalchemy_utils.types import ArrowType
+
+
+def upgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('views',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('certificate_id', sa.Integer(), nullable=True),
+    sa.Column('viewed_at', ArrowType(), server_default=sa.text('now()'), nullable=False),
+    sa.Column('user_id', sa.Integer(), nullable=True),
+    sa.ForeignKeyConstraint(['certificate_id'], ['certificates.id'], ),
+    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    ### end Alembic commands ###
+
+
+def downgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('views')
+    ### end Alembic commands ###

lemur/tests/test_certificates.py

@@ -423,6 +423,21 @@ def test_upload_private_key_str(user):
     assert cert
 
 
+def test_private_key_audit(client, certificate):
+    assert len(certificate.views) == 0
+    client.get(api.url_for(CertificatePrivateKey, certificate_id=certificate.id), headers=VALID_ADMIN_HEADER_TOKEN)
+    assert len(certificate.views) == 1
+
+
+@pytest.mark.parametrize("token,status", [
+    (VALID_USER_HEADER_TOKEN, 200),
+    (VALID_ADMIN_HEADER_TOKEN, 200),
+    ('', 401)
+])
+def test_certificate_get_private_key(client, token, status):
+    assert client.get(api.url_for(Certificates, certificate_id=1), headers=token).status_code == status
+
+
 @pytest.mark.parametrize("token,status", [
     (VALID_USER_HEADER_TOKEN, 200),
     (VALID_ADMIN_HEADER_TOKEN, 200),
@@ -513,15 +528,6 @@ def test_certificates_patch(client, token, status):
     assert client.patch(api.url_for(CertificatesList), data={}, headers=token).status_code == status
 
 
-@pytest.mark.parametrize("token,status", [
-    (VALID_USER_HEADER_TOKEN, 403),
-    (VALID_ADMIN_HEADER_TOKEN, 200),
-    ('', 401)
-])
-def test_certificate_credentials_get(client, token, status):
-    assert client.get(api.url_for(CertificatePrivateKey, certificate_id=1), headers=token).status_code == status
-
-
 @pytest.mark.parametrize("token,status", [
     (VALID_USER_HEADER_TOKEN, 405),
     (VALID_ADMIN_HEADER_TOKEN, 405),

lemur/users/models.py

@@ -8,11 +8,11 @@
 
 .. moduleauthor:: Kevin Glisson <kglisson@netflix.com>
 """
-import sys
 from sqlalchemy.orm import relationship
-from sqlalchemy import Column, Integer, String, Boolean, DateTime
+from sqlalchemy import Integer, ForeignKey, String, PassiveDefault, func, Column, Boolean
 from sqlalchemy.event import listen
 
+from sqlalchemy_utils.types.arrow import ArrowType
 
 from lemur.database import db
 from lemur.models import roles_users
@@ -37,7 +37,7 @@ class User(db.Model):
     id = Column(Integer, primary_key=True)
     password = Column(String(128))
     active = Column(Boolean())
-    confirmed_at = Column(DateTime())
+    confirmed_at = Column(ArrowType())
     username = Column(String(255), nullable=False, unique=True)
     email = Column(String(128), unique=True)
     profile_picture = Column(String(255))
@@ -63,11 +63,7 @@ class User(db.Model):
         :return:
         """
         if self.password:
-            if sys.version_info[0] >= 3:
             self.password = bcrypt.generate_password_hash(self.password).decode('utf-8')
-            else:
-                self.password = bcrypt.generate_password_hash(self.password)
-            return self.password
 
     @property
     def is_admin(self):
@@ -85,4 +81,12 @@ class User(db.Model):
         return "User(username={username})".format(username=self.username)
 
 
+class View(db.Model):
+    __tablename__ = 'views'
+    id = Column(Integer, primary_key=True)
+    certificate_id = Column(Integer, ForeignKey('certificates.id'))
+    viewed_at = Column(ArrowType(), PassiveDefault(func.now()), nullable=False)
+    user_id = Column(Integer, ForeignKey('users.id'))
+
+
 listen(User, 'before_insert', hash_password)

tox.ini

@@ -1,2 +1,2 @@
 [tox]
-envlist = py27,py35
+envlist = py35