bump version: 0.1.25-beta -> 0.1.26-beta

Resolve "Better Error templates"

Closes #35

See merge request BeryJu.org/passbook!20

.bumpversion.cfg

@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.1.24-beta
+current_version = 0.1.26-beta
 tag = True
 commit = True
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)\-(?P<release>.*)
@@ -53,3 +53,7 @@ values =
 
 [bumpversion:file:passbook/otp/__init__.py]
 
+[bumpversion:file:passbook/app_gw/__init__.py]
+
+[bumpversion:file:passbook/suspicious_policy/__init__.py]
+

.gitlab-ci.yml

@@ -12,6 +12,7 @@ stages:
 image: python:3.6
 services:
     - postgres:latest
+    - redis:latest
 
 variables:
     POSTGRES_DB: passbook
@@ -54,7 +55,7 @@ package-docker:
     before_script:
         - echo "{\"auths\":{\"docker.$NEXUS_URL\":{\"auth\":\"$NEXUS_AUTH\"}}}" > /kaniko/.docker/config.json
     script:
-        - /kaniko/executor --context $CI_PROJECT_DIR --dockerfile $CI_PROJECT_DIR/Dockerfile --destination docker.pkg.beryju.org/passbook:latest --destination docker.pkg.beryju.org/passbook:0.1.24-beta
+        - /kaniko/executor --context $CI_PROJECT_DIR --dockerfile $CI_PROJECT_DIR/Dockerfile --destination docker.pkg.beryju.org/passbook:latest --destination docker.pkg.beryju.org/passbook:0.1.26-beta
     stage: build
     only:
         - tags

client-packages/allauth/setup.py

@@ -3,7 +3,7 @@ from setuptools import setup
 
 setup(
     name='django-allauth-passbook',
-    version='0.1.24-beta',
+    version='0.1.26-beta',
     description='passbook support for django-allauth',
     # long_description='\n'.join(read_simple('docs/index.md')[2:]),
     long_description_content_type='text/markdown',

client-packages/sentry-auth-passbook/setup.py

@@ -18,7 +18,7 @@ tests_require = [
 
 setup(
     name='sentry-auth-passbook',
-    version='0.1.24-beta',
+    version='0.1.26-beta',
     author='BeryJu.org',
     author_email='support@beryju.org',
     url='https://passbook.beryju.org',

debian/changelog

@@ -1,3 +1,37 @@
+passbook (0.1.26) stable; urgency=medium
+
+  * bump version: 0.1.24-beta -> 0.1.25-beta
+  * always parse url instead of once
+  * validate upstream in form
+  * add custom template views
+
+ -- Jens Langhammer <jens.langhammer@beryju.org>  Fri, 22 Mar 2019 11:47:08 +0000
+
+passbook (0.1.25) stable; urgency=medium
+
+  * initial implementation of reverse proxy, using django-revproxy from within a middleware
+  * fix TypeError: can only concatenate list (not "str") to list
+  * bump version: 0.1.23-beta -> 0.1.24-beta
+  * add redis dependency back in for caching
+  * utilise cache in PolicyEngine
+  * explicitly use redis db
+  * invalidate cache when policy is saved
+  * add redis as service in CI for unittests
+  * add timeout field to policy to prevent stuck policies
+  * Don't use LoginRequired for PermissionDenied View
+  * Check for policies in app_gw
+  * Better handle policy timeouts
+  * cleanup post-migration mess
+  * prevent ZeroDivisionError
+  * Redirect to login on reverse proxy
+  * cleanup property_mapping list
+  * add compiled regex to RewriteRule
+  * implement actual Rewriting logic
+  * Invalidate cache when ApplicationGateway instance is saved
+  * validate server_name in form
+
+ -- Jens Langhammer <jens.langhammer@beryju.org>  Thu, 21 Mar 2019 15:47:58 +0000
+
 passbook (0.1.24) stable; urgency=medium
 
   * bump version: 0.1.22-beta -> 0.1.23-beta

debian/control

@@ -8,7 +8,7 @@ Standards-Version: 3.9.6
 
 Package: passbook
 Architecture: all
-Recommends: mysql-server, rabbitmq-server
+Recommends: mysql-server, rabbitmq-server, redis-server
 Pre-Depends: adduser, libldap2-dev, libsasl2-dev
 Depends: python3 (>= 3.5) | python3.6 | python3.7, python3-pip, dbconfig-pgsql | dbconfig-no-thanks, ${misc:Depends}
 Description: Authentication Provider/Proxy supporting protocols like SAML, OAuth, LDAP and more.

debian/etc/passbook/config.yml

@@ -11,9 +11,13 @@ debug: false
 secure_proxy_header:
   HTTP_X_FORWARDED_PROTO: https
 rabbitmq: guest:guest@localhost/passbook
+redis: localhost/0
+
 # Error reporting, sends stacktrace to sentry.services.beryju.org
 error_report_enabled: true
 
+primary_domain: passbook.local
+
 passbook:
   sign_up:
     # Enables signup, created users are stored in internal Database and created in LDAP if ldap.create_users is true

helm/passbook/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
-appVersion: "0.1.24-beta"
+appVersion: "0.1.26-beta"
 description: A Helm chart for passbook.
 name: passbook
-version: "0.1.24-beta"
+version: "0.1.26-beta"
 icon: https://passbook.beryju.org/images/logo.png

helm/passbook/requirements.lock

@@ -5,5 +5,8 @@ dependencies:
 - name: postgresql
   repository: https://kubernetes-charts.storage.googleapis.com/
   version: 3.10.1
-digest: sha256:c36e054785f7d706d7d3f525eb1b167dbc89b42f84da7fc167a18bbb6542c999
+- name: redis
-generated: 2019-03-11T20:36:35.125079+01:00
+  repository: https://kubernetes-charts.storage.googleapis.com/
+  version: 5.1.0
+digest: sha256:8bf68bc928a2e3c0f05139635be05fa0840554c7bde4cecd624fac78fb5fa5a3
+generated: 2019-03-21T11:06:51.553379+01:00

helm/passbook/requirements.yaml

@@ -5,3 +5,6 @@ dependencies:
 - name: postgresql
   version: 3.10.1
   repository: https://kubernetes-charts.storage.googleapis.com/
+- name: redis
+  version: 5.1.0
+  repository: https://kubernetes-charts.storage.googleapis.com/

helm/passbook/templates/passbook-configmap.yaml

@@ -37,6 +37,7 @@ data:
     secure_proxy_header:
       HTTP_X_FORWARDED_PROTO: https
     rabbitmq: "user:{{ .Values.rabbitmq.rabbitmq.password }}@{{ .Release.Name }}-rabbitmq"
+    redis: ":{{ .Values.redis.password }}@{{ .Release.Name }}-redis-master/0"
     # Error reporting, sends stacktrace to sentry.services.beryju.org
     error_report_enabled: {{ .Values.config.error_reporting }}
 
@@ -46,6 +47,7 @@ data:
     secret_key: {{ randAlphaNum 50 }}
     {{- end }}
 
+    primary_domain: {{ .Values.primary_domain }}
     domains:
         {{- range .Values.ingress.hosts }}
         - {{ . | quote }}

helm/passbook/values.yaml

@@ -5,7 +5,7 @@
 replicaCount: 1
 
 image:
-  tag: 0.1.24-beta
+  tag: 0.1.26-beta
 
 nameOverride: ""
 

passbook/__init__.py

@@ -1,2 +1,2 @@
 """passbook"""
-__version__ = '0.1.24-beta'
+__version__ = '0.1.26-beta'

passbook/admin/__init__.py

@@ -1,2 +1,2 @@
 """passbook admin"""
-__version__ = '0.1.24-beta'
+__version__ = '0.1.26-beta'

passbook/admin/templates/administration/property_mapping/list.html

@@ -36,7 +36,7 @@
         <tbody>
             {% for property_mapping in object_list %}
             <tr>
-                <td>{{ property_mapping.name }} ({{ property_mapping.slug }})</td>
+                <td>{{ property_mapping.name }}</td>
                 <td>{{ property_mapping|verbose_name }}</td>
                 <td>
                     <a class="btn btn-default btn-sm"

passbook/api/__init__.py

@@ -1,2 +1,2 @@
 """passbook api"""
-__version__ = '0.1.24-beta'
+__version__ = '0.1.26-beta'

passbook/app_gw/__init__.py

@@ -0,0 +1,2 @@
+"""passbook Application Security Gateway Header"""
+__version__ = '0.1.26-beta'

passbook/app_gw/admin.py

@@ -0,0 +1,5 @@
+"""passbook Application Security Gateway model admin"""
+
+from passbook.lib.admin import admin_autoregister
+
+admin_autoregister('passbook_app_gw')

passbook/app_gw/apps.py

@@ -0,0 +1,16 @@
+"""passbook Application Security Gateway app"""
+from importlib import import_module
+
+from django.apps import AppConfig
+
+
+class PassbookApplicationApplicationGatewayConfig(AppConfig):
+    """passbook app_gw app"""
+
+    name = 'passbook.app_gw'
+    label = 'passbook_app_gw'
+    verbose_name = 'passbook Application Security Gateway'
+    mountpoint = 'app_gw/'
+
+    def ready(self):
+        import_module('passbook.app_gw.signals')

passbook/app_gw/forms.py

@@ -0,0 +1,66 @@
+"""passbook Application Security Gateway Forms"""
+from urllib.parse import urlparse
+
+from django import forms
+from django.contrib.admin.widgets import FilteredSelectMultiple
+from django.forms import ValidationError
+from django.utils.translation import gettext as _
+
+from passbook.app_gw.models import ApplicationGatewayProvider, RewriteRule
+from passbook.lib.fields import DynamicArrayField
+
+
+class ApplicationGatewayProviderForm(forms.ModelForm):
+    """Security Gateway Provider form"""
+
+    def clean_server_name(self):
+        """Check if server_name is in DB already, since
+        Postgres ArrayField doesn't suppport keys."""
+        current = self.cleaned_data.get('server_name')
+        if ApplicationGatewayProvider.objects \
+                .filter(server_name__overlap=current) \
+                .exclude(pk=self.instance.pk).exists():
+            raise ValidationError(_("Server Name already in use."))
+        return current
+
+    def clean_upstream(self):
+        """Check that upstream begins with http(s)"""
+        for upstream in self.cleaned_data.get('upstream'):
+            _parsed_url = urlparse(upstream)
+
+            if _parsed_url.scheme not in ('http', 'https'):
+                raise ValidationError(_("URL Scheme must be either http or https"))
+        return self.cleaned_data.get('upstream')
+
+    class Meta:
+
+        model = ApplicationGatewayProvider
+        fields = ['server_name', 'upstream', 'enabled', 'authentication_header',
+                  'default_content_type', 'upstream_ssl_verification', 'property_mappings']
+        widgets = {
+            'authentication_header': forms.TextInput(),
+            'default_content_type': forms.TextInput(),
+            'property_mappings': FilteredSelectMultiple(_('Property Mappings'), False)
+        }
+        field_classes = {
+            'server_name': DynamicArrayField,
+            'upstream': DynamicArrayField
+        }
+        labels = {
+            'upstream_ssl_verification': _('Verify upstream SSL Certificates?'),
+            'property_mappings': _('Rewrite Rules')
+        }
+
+class RewriteRuleForm(forms.ModelForm):
+    """Rewrite Rule Form"""
+
+    class Meta:
+
+        model = RewriteRule
+        fields = ['name', 'match', 'halt', 'replacement', 'redirect', 'conditions']
+        widgets = {
+            'name': forms.TextInput(),
+            'match': forms.TextInput(attrs={'data-is-monospace': True}),
+            'replacement': forms.TextInput(attrs={'data-is-monospace': True}),
+            'conditions': FilteredSelectMultiple(_('Conditions'), False)
+        }

passbook/app_gw/middleware.py

@@ -0,0 +1,226 @@
+"""passbook app_gw middleware"""
+import mimetypes
+from logging import getLogger
+from urllib.parse import urlparse
+
+import certifi
+import urllib3
+from django.core.cache import cache
+from django.utils.http import urlencode
+from revproxy.exceptions import InvalidUpstream
+from revproxy.response import get_django_response
+from revproxy.utils import encode_items, normalize_request_headers
+
+from passbook.app_gw.models import ApplicationGatewayProvider
+from passbook.app_gw.rewrite import Rewriter
+from passbook.core.models import Application
+from passbook.core.policies import PolicyEngine
+
+IGNORED_HOSTNAMES_KEY = 'passbook_app_gw_ignored'
+LOGGER = getLogger(__name__)
+QUOTE_SAFE = r'<.;>\(}*+|~=-$/_:^@)[{]&\'!,"`'
+ERRORS_MESSAGES = {
+    'upstream-no-scheme': ("Upstream URL scheme must be either "
+                           "'http' or 'https' (%s).")
+}
+
+# pylint: disable=too-many-instance-attributes
+class ApplicationGatewayMiddleware:
+    """Check if request should be proxied or handeled normally"""
+
+    ignored_hosts = []
+    request = None
+    app_gw = None
+    http = None
+    http_no_verify = None
+    host_header = ''
+
+    _parsed_url = None
+    _request_headers = None
+
+    def __init__(self, get_response):
+        self.get_response = get_response
+        self.ignored_hosts = cache.get(IGNORED_HOSTNAMES_KEY, [])
+        self.http_no_verify = urllib3.PoolManager()
+        self.http = urllib3.PoolManager(
+            cert_reqs='CERT_REQUIRED',
+            ca_certs=certifi.where())
+
+    def precheck(self, request):
+        """Check if a request should be proxied or forwarded to passbook"""
+        # Check if hostname is in cached list of ignored hostnames
+        # This saves us having to query the database on each request
+        self.host_header = request.META.get('HTTP_HOST')
+        if self.host_header in self.ignored_hosts:
+            LOGGER.debug("%s is ignored", self.host_header)
+            return True, None
+        # Look through all ApplicationGatewayProviders and check hostnames
+        matches = ApplicationGatewayProvider.objects.filter(
+            server_name__contains=[self.host_header],
+            enabled=True)
+        if not matches.exists():
+            # Mo matching Providers found, add host header to ignored list
+            self.ignored_hosts.append(self.host_header)
+            cache.set(IGNORED_HOSTNAMES_KEY, self.ignored_hosts)
+            LOGGER.debug("Ignoring %s", self.host_header)
+            return True, None
+        # At this point we're certain there's a matching ApplicationGateway
+        if len(matches) > 1:
+            # TODO This should never happen
+            raise ValueError
+        app_gw = matches.first()
+        try:
+            # Check if ApplicationGateway is associcaited with application
+            getattr(app_gw, 'application')
+            return False, app_gw
+        except Application.DoesNotExist:
+            LOGGER.debug("ApplicationGateway not associated with Application")
+            return True, None
+        return True, None
+
+    def __call__(self, request):
+        forward, self.app_gw = self.precheck(request)
+        if forward:
+            return self.get_response(request)
+        self.request = request
+        return self.dispatch(request)
+
+    def get_upstream(self):
+        """Get upstream as parsed url"""
+        # TODO: How to choose upstream?
+        upstream = self.app_gw.upstream[0]
+
+        self._parsed_url = urlparse(upstream)
+
+        if self._parsed_url.scheme not in ('http', 'https'):
+            raise InvalidUpstream(ERRORS_MESSAGES['upstream-no-scheme'] %
+                                  upstream)
+
+        return upstream
+
+    def _format_path_to_redirect(self, request):
+        LOGGER.debug("Path before: %s", request.get_full_path())
+        rewriter = Rewriter(self.app_gw, request)
+        after = rewriter.build()
+        LOGGER.debug("Path after: %s", after)
+        return after
+
+    def get_proxy_request_headers(self, request):
+        """Get normalized headers for the upstream
+        Gets all headers from the original request and normalizes them.
+        Normalization occurs by removing the prefix ``HTTP_`` and
+        replacing and ``_`` by ``-``. Example: ``HTTP_ACCEPT_ENCODING``
+        becames ``Accept-Encoding``.
+        .. versionadded:: 0.9.1
+        :param request:  The original HTTPRequest instance
+        :returns:  Normalized headers for the upstream
+        """
+        return normalize_request_headers(request)
+
+    def get_request_headers(self):
+        """Return request headers that will be sent to upstream.
+        The header REMOTE_USER is set to the current user
+        if AuthenticationMiddleware is enabled and
+        the view's add_remote_user property is True.
+        .. versionadded:: 0.9.8
+        """
+        request_headers = self.get_proxy_request_headers(self.request)
+        request_headers[self.app_gw.authentication_header] = self.request.user.get_username()
+        LOGGER.info("%s set", self.app_gw.authentication_header)
+
+        return request_headers
+
+    def check_permission(self):
+        """Check if user is authenticated and has permission to access app"""
+        if not hasattr(self.request, 'user'):
+            return False
+        if not self.request.user.is_authenticated:
+            return False
+        policy_engine = PolicyEngine(self.app_gw.application.policies.all())
+        policy_engine.for_user(self.request.user).with_request(self.request).build()
+        passing, _messages = policy_engine.result
+
+        return passing
+
+    def get_encoded_query_params(self):
+        """Return encoded query params to be used in proxied request"""
+        get_data = encode_items(self.request.GET.lists())
+        return urlencode(get_data)
+
+    def _created_proxy_response(self, request, path):
+        request_payload = request.body
+
+        LOGGER.debug("Request headers: %s", self._request_headers)
+
+        request_url = self.get_upstream() + path
+        LOGGER.debug("Request URL: %s", request_url)
+
+        if request.GET:
+            request_url += '?' + self.get_encoded_query_params()
+            LOGGER.debug("Request URL: %s", request_url)
+
+        http = self.http
+        if not self.app_gw.upstream_ssl_verification:
+            http = self.http_no_verify
+
+        try:
+            proxy_response = http.urlopen(request.method,
+                                          request_url,
+                                          redirect=False,
+                                          retries=None,
+                                          headers=self._request_headers,
+                                          body=request_payload,
+                                          decode_content=False,
+                                          preload_content=False)
+            LOGGER.debug("Proxy response header: %s",
+                         proxy_response.getheaders())
+        except urllib3.exceptions.HTTPError as error:
+            LOGGER.exception(error)
+            raise
+
+        return proxy_response
+
+    def _replace_host_on_redirect_location(self, request, proxy_response):
+        location = proxy_response.headers.get('Location')
+        if location:
+            if request.is_secure():
+                scheme = 'https://'
+            else:
+                scheme = 'http://'
+            request_host = scheme + self.host_header
+
+            upstream_host_http = 'http://' + self._parsed_url.netloc
+            upstream_host_https = 'https://' + self._parsed_url.netloc
+
+            location = location.replace(upstream_host_http, request_host)
+            location = location.replace(upstream_host_https, request_host)
+            proxy_response.headers['Location'] = location
+            LOGGER.debug("Proxy response LOCATION: %s",
+                         proxy_response.headers['Location'])
+
+    def _set_content_type(self, request, proxy_response):
+        content_type = proxy_response.headers.get('Content-Type')
+        if not content_type:
+            content_type = (mimetypes.guess_type(request.path)[0] or
+                            self.app_gw.default_content_type)
+            proxy_response.headers['Content-Type'] = content_type
+            LOGGER.debug("Proxy response CONTENT-TYPE: %s",
+                         proxy_response.headers['Content-Type'])
+
+    def dispatch(self, request):
+        """Build proxied request and pass to upstream"""
+        # if not self.check_permission():
+        #     to_url = 'https://%s/?next=%s' % (CONFIG.get('domains')[0], request.get_full_path())
+        #     return RedirectView.as_view(url=to_url)(request)
+
+        self._request_headers = self.get_request_headers()
+
+        path = self._format_path_to_redirect(request)
+        proxy_response = self._created_proxy_response(request, path)
+
+        self._replace_host_on_redirect_location(request, proxy_response)
+        self._set_content_type(request, proxy_response)
+        response = get_django_response(proxy_response, strict_cookies=False)
+
+        LOGGER.debug("RESPONSE RETURNED: %s", response)
+        return response

passbook/app_gw/migrations/0001_initial.py

@@ -0,0 +1,50 @@
+# Generated by Django 2.1.7 on 2019-03-20 21:38
+
+import django.contrib.postgres.fields
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('passbook_core', '0020_groupmembershippolicy'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='ApplicationGatewayProvider',
+            fields=[
+                ('provider_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='passbook_core.Provider')),
+                ('server_name', django.contrib.postgres.fields.ArrayField(base_field=models.TextField(), size=None)),
+                ('upstream', django.contrib.postgres.fields.ArrayField(base_field=models.TextField(), size=None)),
+                ('enabled', models.BooleanField(default=True)),
+                ('authentication_header', models.TextField(default='X-Remote-User')),
+                ('default_content_type', models.TextField(default='application/octet-stream')),
+                ('upstream_ssl_verification', models.BooleanField(default=True)),
+            ],
+            options={
+                'verbose_name': 'Application Gateway Provider',
+                'verbose_name_plural': 'Application Gateway Providers',
+            },
+            bases=('passbook_core.provider',),
+        ),
+        migrations.CreateModel(
+            name='RewriteRule',
+            fields=[
+                ('propertymapping_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='passbook_core.PropertyMapping')),
+                ('match', models.TextField()),
+                ('halt', models.BooleanField(default=False)),
+                ('replacement', models.TextField()),
+                ('redirect', models.CharField(choices=[('internal', 'Internal'), (301, 'Moved Permanently'), (302, 'Found')], max_length=50)),
+                ('conditions', models.ManyToManyField(to='passbook_core.Policy')),
+            ],
+            options={
+                'verbose_name': 'Rewrite Rule',
+                'verbose_name_plural': 'Rewrite Rules',
+            },
+            bases=('passbook_core.propertymapping',),
+        ),
+    ]

passbook/app_gw/migrations/0002_auto_20190321_1521.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.1.7 on 2019-03-21 15:21
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('passbook_app_gw', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='rewriterule',
+            name='conditions',
+            field=models.ManyToManyField(blank=True, to='passbook_core.Policy'),
+        ),
+    ]

passbook/app_gw/models.py

@@ -0,0 +1,74 @@
+"""passbook app_gw models"""
+import re
+
+from django.contrib.postgres.fields import ArrayField
+from django.db import models
+from django.utils.translation import gettext as _
+
+from passbook.core.models import Policy, PropertyMapping, Provider
+
+
+class ApplicationGatewayProvider(Provider):
+    """Virtual server which proxies requests to any hostname in server_name to upstream"""
+
+    server_name = ArrayField(models.TextField())
+    upstream = ArrayField(models.TextField())
+    enabled = models.BooleanField(default=True)
+
+    authentication_header = models.TextField(default='X-Remote-User')
+    default_content_type = models.TextField(default='application/octet-stream')
+    upstream_ssl_verification = models.BooleanField(default=True)
+
+    form = 'passbook.app_gw.forms.ApplicationGatewayProviderForm'
+
+    @property
+    def name(self):
+        """since this model has no name property, return a joined list of server_names as name"""
+        return ', '.join(self.server_name)
+
+    def __str__(self):
+        return "Application Gateway %s" % ', '.join(self.server_name)
+
+    class Meta:
+
+        verbose_name = _('Application Gateway Provider')
+        verbose_name_plural = _('Application Gateway Providers')
+
+
+class RewriteRule(PropertyMapping):
+    """Rewrite requests matching `match` with `replacement`, if all polcies in `conditions` apply"""
+
+    REDIRECT_INTERNAL = 'internal'
+    REDIRECT_PERMANENT = 301
+    REDIRECT_FOUND = 302
+
+    REDIRECTS = (
+        (REDIRECT_INTERNAL, _('Internal')),
+        (REDIRECT_PERMANENT, _('Moved Permanently')),
+        (REDIRECT_FOUND, _('Found')),
+    )
+
+    match = models.TextField()
+    halt = models.BooleanField(default=False)
+    conditions = models.ManyToManyField(Policy, blank=True)
+    replacement = models.TextField() # python formatted strings, use {match.1}
+    redirect = models.CharField(max_length=50, choices=REDIRECTS)
+
+    form = 'passbook.app_gw.forms.RewriteRuleForm'
+
+    _matcher = None
+
+    @property
+    def compiled_matcher(self):
+        """Cache the compiled regex in memory"""
+        if not self._matcher:
+            self._matcher = re.compile(self.match)
+        return self._matcher
+
+    def __str__(self):
+        return "Rewrite Rule %s" % self.name
+
+    class Meta:
+
+        verbose_name = _('Rewrite Rule')
+        verbose_name_plural = _('Rewrite Rules')

passbook/app_gw/requirements.txt

@@ -0,0 +1,2 @@
+django-revproxy
+urllib3[secure]

passbook/app_gw/rewrite.py

@@ -0,0 +1,38 @@
+"""passbook app_gw rewriter"""
+
+from passbook.app_gw.models import RewriteRule
+
+
+class Context:
+    """Empty class which we dynamically add attributes to"""
+
+class Rewriter:
+    """Apply rewrites"""
+
+    __application = None
+    __request = None
+
+    def __init__(self, application, request):
+        self.__application = application
+        self.__request = request
+
+    def __build_context(self, matches):
+        """Build object with .0, .1, etc as groups and give access to request"""
+        context = Context()
+        for index, group_match in enumerate(matches.groups()):
+            setattr(context, "g%d" % (index + 1), group_match)
+        setattr(context, 'request', self.__request)
+        return context
+
+    def build(self):
+        """Run all rules over path and return final path"""
+        path = self.__request.get_full_path()
+        for rule in RewriteRule.objects.filter(provider__in=[self.__application]):
+            matches = rule.compiled_matcher.search(path)
+            if not matches:
+                continue
+            replace_context = self.__build_context(matches)
+            path = rule.replacement.format(context=replace_context)
+            if rule.halt:
+                return path
+        return path

passbook/app_gw/settings.py

@@ -0,0 +1,5 @@
+"""Application Security Gateway settings"""
+
+# INSTALLED_APPS = [
+#     'revproxy'
+# ]

passbook/app_gw/signals.py

@@ -0,0 +1,20 @@
+"""passbook app_gw cache clean signals"""
+
+from logging import getLogger
+
+from django.core.cache import cache
+from django.db.models.signals import post_save
+from django.dispatch import receiver
+
+from passbook.app_gw.middleware import IGNORED_HOSTNAMES_KEY
+from passbook.app_gw.models import ApplicationGatewayProvider
+
+LOGGER = getLogger(__name__)
+
+@receiver(post_save)
+# pylint: disable=unused-argument
+def invalidate_app_gw_cache(sender, instance, **kwargs):
+    """Invalidate Policy cache when app_gw is updated"""
+    if isinstance(instance, ApplicationGatewayProvider):
+        LOGGER.debug("Invalidating cache for ignored hostnames")
+        cache.delete(IGNORED_HOSTNAMES_KEY)

passbook/app_gw/urls.py

@@ -0,0 +1,2 @@
+"""passbook app_gw urls"""
+urlpatterns = []

passbook/audit/__init__.py

@@ -1,2 +1,2 @@
 """passbook audit Header"""
-__version__ = '0.1.24-beta'
+__version__ = '0.1.26-beta'

passbook/captcha_factor/__init__.py

@@ -1,2 +1,2 @@
 """passbook captcha_factor Header"""
-__version__ = '0.1.24-beta'
+__version__ = '0.1.26-beta'

passbook/core/__init__.py

@@ -1,2 +1,2 @@
 """passbook core"""
-__version__ = '0.1.24-beta'
+__version__ = '0.1.26-beta'

passbook/core/forms/policies.py

@@ -7,7 +7,7 @@ from passbook.core.models import (DebugPolicy, FieldMatcherPolicy,
                                   GroupMembershipPolicy, PasswordPolicy,
                                   WebhookPolicy)
 
-GENERAL_FIELDS = ['name', 'action', 'negate', 'order', ]
+GENERAL_FIELDS = ['name', 'action', 'negate', 'order', 'timeout']
 
 class FieldMatcherPolicyForm(forms.ModelForm):
     """FieldMatcherPolicy Form"""

passbook/core/migrations/0021_policy_timeout.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.1.7 on 2019-03-21 12:03
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('passbook_core', '0020_groupmembershippolicy'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='policy',
+            name='timeout',
+            field=models.IntegerField(default=30),
+        ),
+    ]

passbook/core/models.py

@@ -220,6 +220,7 @@ class Policy(UUIDModel, CreatedUpdatedModel):
     action = models.CharField(max_length=20, choices=ACTIONS)
     negate = models.BooleanField(default=False)
     order = models.IntegerField(default=0)
+    timeout = models.IntegerField(default=30)
 
     objects = InheritanceManager()
 

passbook/core/policies.py

@@ -1,7 +1,10 @@
 """passbook core policy engine"""
 from logging import getLogger
 
+from amqp.exceptions import UnexpectedFrame
 from celery import group
+from celery.exceptions import TimeoutError as CeleryTimeoutError
+from django.core.cache import cache
 from ipware import get_client_ip
 
 from passbook.core.celery import CELERY_APP
@@ -9,6 +12,9 @@ from passbook.core.models import Policy, User
 
 LOGGER = getLogger(__name__)
 
+def _cache_key(policy, user):
+    return "%s#%s" % (policy.uuid, user.pk)
+
 @CELERY_APP.task()
 def _policy_engine_task(user_pk, policy_pk, **kwargs):
     """Task wrapper to run policy checking"""
@@ -29,58 +35,89 @@ def _policy_engine_task(user_pk, policy_pk, **kwargs):
     if policy_obj.negate:
         policy_result = not policy_result
     LOGGER.debug("Policy %r#%s got %s", policy_obj.name, policy_obj.pk.hex, policy_result)
+    cache_key = _cache_key(policy_obj, user_obj)
+    cache.set(cache_key, (policy_obj.action, policy_result, message))
+    LOGGER.debug("Cached entry as %s", cache_key)
     return policy_obj.action, policy_result, message
 
 class PolicyEngine:
     """Orchestrate policy checking, launch tasks and return result"""
 
+    __group = None
+    __cached = None
+
     policies = None
-    _group = None
+    __get_timeout = 0
-    _request = None
+    __request = None
-    _user = None
+    __user = None
 
     def __init__(self, policies):
         self.policies = policies
-        self._request = None
+        self.__request = None
-        self._user = None
+        self.__user = None
 
     def for_user(self, user):
         """Check policies for user"""
-        self._user = user
+        self.__user = user
         return self
 
     def with_request(self, request):
         """Set request"""
-        self._request = request
+        self.__request = request
         return self
 
     def build(self):
         """Build task group"""
-        if not self._user:
+        if not self.__user:
             raise ValueError("User not set.")
         signatures = []
+        cached_policies = []
         kwargs = {
-            '__password__': getattr(self._user, '__password__', None),
+            '__password__': getattr(self.__user, '__password__', None),
         }
-        if self._request:
+        if self.__request:
-            kwargs['remote_ip'], _ = get_client_ip(self._request)
+            kwargs['remote_ip'], _ = get_client_ip(self.__request)
             if not kwargs['remote_ip']:
                 kwargs['remote_ip'] = '255.255.255.255'
         for policy in self.policies:
-            signatures.append(_policy_engine_task.s(self._user.pk, policy.pk.hex, **kwargs))
+            cached_policy = cache.get(_cache_key(policy, self.__user), None)
-        self._group = group(signatures)()
+            if cached_policy:
+                LOGGER.debug("Taking result from cache for %s", policy.pk.hex)
+                cached_policies.append(cached_policy)
+            else:
+                LOGGER.debug("Evaluating policy %s", policy.pk.hex)
+                signatures.append(_policy_engine_task.signature(
+                    args=(self.__user.pk, policy.pk.hex),
+                    kwargs=kwargs,
+                    time_limit=policy.timeout))
+                self.__get_timeout += policy.timeout
+        LOGGER.debug("Set total policy timeout to %r", self.__get_timeout)
+        # If all policies are cached, we have an empty list here.
+        if signatures:
+            self.__group = group(signatures)()
+            self.__get_timeout += 3
+            self.__get_timeout = (self.__get_timeout / len(self.policies)) * 1.5
+        self.__cached = cached_policies
         return self
 
     @property
     def result(self):
         """Get policy-checking result"""
         messages = []
+        result = []
         try:
+            if self.__group:
                 # ValueError can be thrown from _policy_engine_task when user is None
-            group_result = self._group.get()
+                result += self.__group.get(timeout=self.__get_timeout)
+            result += self.__cached
         except ValueError as exc:
-            return False, str(exc)
+            # ValueError can be thrown from _policy_engine_task when user is None
-        for policy_action, policy_result, policy_message in group_result:
+            return False, [str(exc)]
+        except UnexpectedFrame as exc:
+            return False, [str(exc)]
+        except CeleryTimeoutError as exc:
+            return False, [str(exc)]
+        for policy_action, policy_result, policy_message in result:
             passing = (policy_action == Policy.ACTION_ALLOW and policy_result) or \
                       (policy_action == Policy.ACTION_DENY and not policy_result)
             LOGGER.debug('Action=%s, Result=%r => %r', policy_action, policy_result, passing)

passbook/core/requirements.txt

@@ -1,12 +1,13 @@
-django>=2.0
+celery
-django-model-utils
+cherrypy
+colorlog
 django-ipware
+django-model-utils
+django-redis
+django>=2.0
 djangorestframework
+idna<2.8,>=2.5
+markdown
+psycopg2
 PyYAML
 raven
-markdown
-colorlog
-celery
-psycopg2
-idna<2.8,>=2.5
-cherrypy

passbook/core/settings.py

@@ -34,7 +34,7 @@ SECRET_KEY = CONFIG.get('secret_key')
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = CONFIG.get('debug')
 INTERNAL_IPS = ['127.0.0.1']
-ALLOWED_HOSTS = CONFIG.get('domains', [])
+ALLOWED_HOSTS = CONFIG.get('domains', []) + [CONFIG.get('primary_domain')]
 SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')
 
 LOGIN_URL = 'passbook_core:auth-login'
@@ -45,6 +45,9 @@ AUTH_USER_MODEL = 'passbook_core.User'
 
 CSRF_COOKIE_NAME = 'passbook_csrf'
 SESSION_COOKIE_NAME = 'passbook_session'
+SESSION_COOKIE_DOMAIN = CONFIG.get('primary_domain')
+SESSION_ENGINE = "django.contrib.sessions.backends.cache"
+SESSION_CACHE_ALIAS = "default"
 LANGUAGE_COOKIE_NAME = 'passbook_language'
 
 AUTHENTICATION_BACKENDS = [
@@ -79,6 +82,7 @@ INSTALLED_APPS = [
     'passbook.pretend.apps.PassbookPretendConfig',
     'passbook.password_expiry_policy.apps.PassbookPasswordExpiryPolicyConfig',
     'passbook.suspicious_policy.apps.PassbookSuspiciousPolicyConfig',
+    'passbook.app_gw.apps.PassbookApplicationApplicationGatewayConfig',
 ]
 
 # Message Tag fix for bootstrap CSS Classes
@@ -99,12 +103,23 @@ REST_FRAMEWORK = {
     ]
 }
 
+CACHES = {
+    "default": {
+        "BACKEND": "django_redis.cache.RedisCache",
+        "LOCATION": "redis://%s" % CONFIG.get('redis'),
+        "OPTIONS": {
+            "CLIENT_CLASS": "django_redis.client.DefaultClient",
+        }
+    }
+}
+
 MIDDLEWARE = [
-    'django.middleware.security.SecurityMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'passbook.app_gw.middleware.ApplicationGatewayMiddleware',
+    'django.middleware.security.SecurityMiddleware',
     'django.middleware.common.CommonMiddleware',
     'django.middleware.csrf.CsrfViewMiddleware',
-    'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
     'raven.contrib.django.raven_compat.middleware.SentryResponseErrorIdMiddleware',

passbook/core/signals.py

@@ -1,10 +1,15 @@
 """passbook core signals"""
+from logging import getLogger
 
+from django.core.cache import cache
 from django.core.signals import Signal
+from django.db.models.signals import post_save
 from django.dispatch import receiver
 
 from passbook.core.exceptions import PasswordPolicyInvalid
 
+LOGGER = getLogger(__name__)
+
 user_signed_up = Signal(providing_args=['request', 'user'])
 invitation_created = Signal(providing_args=['request', 'invitation'])
 invitation_used = Signal(providing_args=['request', 'invitation', 'user'])
@@ -24,3 +29,14 @@ def password_policy_checker(sender, password, **kwargs):
         passing, messages = policy_engine.result
         if not passing:
             raise PasswordPolicyInvalid(*messages)
+
+@receiver(post_save)
+# pylint: disable=unused-argument
+def invalidate_policy_cache(sender, instance, **kwargs):
+    """Invalidate Policy cache when policy is updated"""
+    from passbook.core.models import Policy
+    if isinstance(instance, Policy):
+        LOGGER.debug("Invalidating cache for %s", instance.pk)
+        keys = cache.keys("%s#*" % instance.pk)
+        cache.delete_many(keys)
+        LOGGER.debug("Deleted %d keys", len(keys))

passbook/core/static/css/passbook.css

@@ -195,3 +195,7 @@ form .form-row p.datetime {
 .selector-remove {
     background: url(../admin/img/selector-icons.svg) 0 -64px no-repeat;
 }
+
+input[data-is-monospace] {
+    font-family: monospace;
+}

passbook/core/templates/error/400.html

@@ -0,0 +1,26 @@
+{% extends 'login/base.html' %}
+
+{% load static %}
+{% load i18n %}
+{% load utils %}
+
+{% block head %}
+{{ block.super }}
+<style>
+    .pf-icon {
+        font-size: 48px;
+        text-align: center;
+    }
+</style>
+{% endblock %}
+
+{% block card %}
+<header class="login-pf-header">
+    <h1>{% trans 'Bad Request' %}</h1>
+</header>
+<form>
+    {% if 'back' in request.GET %}
+    <a href="{% back %}" class="btn btn-primary btn-block btn-lg">{% trans 'Back' %}</a>
+    {% endif %}
+</form>
+{% endblock %}

passbook/core/templates/error/403.html

@@ -0,0 +1,26 @@
+{% extends 'login/base.html' %}
+
+{% load static %}
+{% load i18n %}
+{% load utils %}
+
+{% block head %}
+{{ block.super }}
+<style>
+    .pf-icon {
+        font-size: 48px;
+        text-align: center;
+    }
+</style>
+{% endblock %}
+
+{% block card %}
+<header class="login-pf-header">
+    <h1>{% trans 'Forbidden' %}</h1>
+</header>
+<form>
+    {% if 'back' in request.GET %}
+    <a href="{% back %}" class="btn btn-primary btn-block btn-lg">{% trans 'Back' %}</a>
+    {% endif %}
+</form>
+{% endblock %}

passbook/core/templates/error/404.html

@@ -0,0 +1,26 @@
+{% extends 'login/base.html' %}
+
+{% load static %}
+{% load i18n %}
+{% load utils %}
+
+{% block head %}
+{{ block.super }}
+<style>
+    .pf-icon {
+        font-size: 48px;
+        text-align: center;
+    }
+</style>
+{% endblock %}
+
+{% block card %}
+<header class="login-pf-header">
+    <h1>{% trans 'Not Found' %}</h1>
+</header>
+<form>
+    {% if 'back' in request.GET %}
+    <a href="{% back %}" class="btn btn-primary btn-block btn-lg">{% trans 'Back' %}</a>
+    {% endif %}
+</form>
+{% endblock %}

passbook/core/templates/error/500.html

@@ -0,0 +1,26 @@
+{% extends 'login/base.html' %}
+
+{% load static %}
+{% load i18n %}
+{% load utils %}
+
+{% block head %}
+{{ block.super }}
+<style>
+    .pf-icon {
+        font-size: 48px;
+        text-align: center;
+    }
+</style>
+{% endblock %}
+
+{% block card %}
+<header class="login-pf-header">
+    <h1>{% trans 'Server Error' %}</h1>
+</header>
+<form>
+    {% if 'back' in request.GET %}
+    <a href="{% back %}" class="btn btn-primary btn-block btn-lg">{% trans 'Back' %}</a>
+    {% endif %}
+</form>
+{% endblock %}

passbook/core/urls.py

@@ -7,13 +7,18 @@ from django.urls import include, path
 from django.views.generic import RedirectView
 
 from passbook.core.auth import view
-from passbook.core.views import authentication, overview, user
+from passbook.core.views import authentication, error, overview, user
 from passbook.lib.utils.reflection import get_apps
 
 LOGGER = getLogger(__name__)
 admin.autodiscover()
 admin.site.login = RedirectView.as_view(pattern_name='passbook_core:auth-login')
 
+handler400 = error.BadRequestView.as_view()
+handler403 = error.ForbiddenView.as_view()
+handler404 = error.NotFoundView.as_view()
+handler500 = error.BadRequestView.as_view()
+
 core_urls = [
     # Authentication views
     path('auth/login/', authentication.LoginView.as_view(), name='auth-login'),

passbook/core/views/error.py

@@ -0,0 +1,60 @@
+"""passbook core error views"""
+
+from django.http.response import (HttpResponseBadRequest,
+                                  HttpResponseForbidden, HttpResponseNotFound,
+                                  HttpResponseServerError)
+from django.template.response import TemplateResponse
+from django.views.generic import TemplateView
+
+
+class BadRequestTemplateResponse(TemplateResponse, HttpResponseBadRequest):
+    """Combine Template response with Http Code 400"""
+
+class ForbiddenTemplateResponse(TemplateResponse, HttpResponseForbidden):
+    """Combine Template response with Http Code 403"""
+
+class NotFoundTemplateResponse(TemplateResponse, HttpResponseNotFound):
+    """Combine Template response with Http Code 404"""
+
+class ServerErrorTemplateResponse(TemplateResponse, HttpResponseServerError):
+    """Combine Template response with Http Code 500"""
+
+class BadRequestView(TemplateView):
+    """Show Bad Request message"""
+
+    response_class = BadRequestTemplateResponse
+    template_name = 'error/400.html'
+
+    extra_context = {
+        'is_login': True
+    }
+
+class ForbiddenView(TemplateView):
+    """Show Forbidden message"""
+
+    response_class = ForbiddenTemplateResponse
+    template_name = 'error/403.html'
+
+    extra_context = {
+        'is_login': True
+    }
+
+class NotFoundView(TemplateView):
+    """Show Not Found message"""
+
+    response_class = NotFoundTemplateResponse
+    template_name = 'error/404.html'
+
+    extra_context = {
+        'is_login': True
+    }
+
+class ServerErrorView(TemplateView):
+    """Show Server Error message"""
+
+    response_class = ServerErrorTemplateResponse
+    template_name = 'error/500.html'
+
+    extra_context = {
+        'is_login': True
+    }

passbook/core/views/utils.py

@@ -1,5 +1,4 @@
 """passbook core utils view"""
-from django.contrib.auth.mixins import LoginRequiredMixin
 from django.utils.translation import ugettext as _
 from django.views.generic import TemplateView
 
@@ -21,7 +20,7 @@ class LoadingView(TemplateView):
         kwargs['target_url'] = self.get_url()
         return super().get_context_data(**kwargs)
 
-class PermissionDeniedView(LoginRequiredMixin, TemplateView):
+class PermissionDeniedView(TemplateView):
     """Generic Permission denied view"""
 
     template_name = 'login/denied.html'

passbook/hibp_policy/__init__.py

@@ -1,2 +1,2 @@
 """passbook hibp_policy"""
-__version__ = '0.1.24-beta'
+__version__ = '0.1.26-beta'

passbook/ldap/__init__.py

@@ -1,2 +1,2 @@
 """Passbook ldap app Header"""
-__version__ = '0.1.24-beta'
+__version__ = '0.1.26-beta'

passbook/lib/__init__.py

@@ -1,2 +1,2 @@
 """passbook lib"""
-__version__ = '0.1.24-beta'
+__version__ = '0.1.26-beta'

passbook/lib/default.yml

@@ -30,10 +30,13 @@ debug: false
 secure_proxy_header:
   HTTP_X_FORWARDED_PROTO: https
 rabbitmq: guest:guest@localhost/passbook
+redis: localhost/0
 # Error reporting, sends stacktrace to sentry.services.beryju.org
 error_report_enabled: true
 secret_key: 9$@r!d^1^jrn#fk#1#@ks#9&i$^s#1)_13%$rwjrhd=e8jfi_s
 
+primary_domain: 'localhost'
+
 passbook:
   sign_up:
     # Enables signup, created users are stored in internal Database and created in LDAP if ldap.create_users is true

passbook/oauth_client/__init__.py

@@ -1,2 +1,2 @@
 """passbook oauth_client Header"""
-__version__ = '0.1.24-beta'
+__version__ = '0.1.26-beta'

passbook/oauth_provider/__init__.py

@@ -1,2 +1,2 @@
 """passbook oauth_provider Header"""
-__version__ = '0.1.24-beta'
+__version__ = '0.1.26-beta'

passbook/otp/__init__.py

@@ -1,2 +1,2 @@
 """passbook otp Header"""
-__version__ = '0.1.24-beta'
+__version__ = '0.1.26-beta'

passbook/password_expiry_policy/__init__.py

@@ -1,2 +1,2 @@
 """passbook password_expiry"""
-__version__ = '0.1.24-beta'
+__version__ = '0.1.26-beta'

passbook/saml_idp/__init__.py

@@ -1,2 +1,2 @@
 """passbook saml_idp Header"""
-__version__ = '0.1.24-beta'
+__version__ = '0.1.26-beta'

passbook/suspicious_policy/__init__.py

@@ -1,2 +1,2 @@
 """passbook suspicious_policy"""
-__version__ = '0.1.1-beta'
+__version__ = '0.1.26-beta'

requirements.txt

@@ -7,3 +7,4 @@
 -r passbook/captcha_factor/requirements.txt
 -r passbook/admin/requirements.txt
 -r passbook/api/requirements.txt
+-r passbook/app_gw/requirements.txt