provide special view @@auth_select for selection of authentication method

.gitignore

@@ -1,8 +1,14 @@
 *.pyc
 *.pyo
+*.swp
 dist/
+var/
+*.egg-info
 *.project
 *.pydevproject
+*.ropeproject
 *.sublime-project
 *.sublime-workspace
+.env
 .settings
+adminuser.zcml

LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT) 
+
+Copyright (C) 2023 cyberconcepts.org team
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

LICENSE.GPL

@@ -1,222 +0,0 @@
-                       GNU GENERAL PUBLIC LICENSE
-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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-a notice placed by the copyright holder saying it may be distributed
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-language.  (Hereinafter, translation is included without limitation in
-the term "modification".)  Each licensee is addressed as "you".
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-Activities other than copying, distribution and modification are not
-covered by this License; they are outside its scope.  The act of
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-
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-                     END OF TERMS AND CONDITIONS

browser/auth.py

@@ -1,61 +0,0 @@
-#
-#  Copyright (c) 2011 Helmut Merz helmutm@cy55.de
-#
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2 of the License, or
-#  (at your option) any later version.
-#
-#  This program 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 General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
-
-"""
-$Id$
-"""
-
-from zope.app.security.interfaces import IAuthentication
-from zope.app.security.interfaces import ILogout, IUnauthenticatedPrincipal
-from zope import component
-from zope.interface import implements
-
-from loops.browser.node import NodeView
-from zope.app.pagetemplate import ViewPageTemplateFile
-from zope.cachedescriptors.property import Lazy
-
-
-class LoginForm(NodeView):
-
-    template = ViewPageTemplateFile('auth.pt')
-
-    @Lazy
-    def macro(self):
-        return self.template.macros['login_form']
-
-    @Lazy
-    def item(self):
-        return self
-
-
-class Logout(object):
-
-    implements(ILogout)
-
-    def __init__(self, context, request):
-        self.context = context
-        self.request = request
-
-    def __call__(self):
-        nextUrl = self.request.get('nextURL') or self.request.URL[-1]
-        if not IUnauthenticatedPrincipal.providedBy(self.request.principal):
-            auth = component.getUtility(IAuthentication)
-            ILogout(auth).logout(self.request)
-        return self.request.response.redirect(nextUrl)
-
-

expert/instance.py

@@ -1,44 +0,0 @@
-#
-#  Copyright (c) 2008 Helmut Merz helmutm@cy55.de
-#
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2 of the License, or
-#  (at your option) any later version.
-#
-#  This program 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 General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
-
-"""
-Filter query results.
-
-$Id$
-"""
-
-from zope.interface import implements
-
-from loops.expert.interfaces import IQueryInstance
-
-
-class QueryInstance(object):
-
-    implements(IQueryInstance)
-
-    def __init__(self, query, *filters, **kw):
-        self.query = query
-        self.filters = filters
-        self.filterQueries = {}
-        for k, v in kw.items():
-            setattr(self, k, v)
-
-    def apply(self, uidsOnly=False):
-        result = self.query.apply()
-        return result
-

inst/bluebream/adminuser.zcml.in

@@ -0,0 +1,14 @@
+<configure xmlns="http://namespaces.zope.org/zope">
+
+  <principal
+     id="zope.manager"
+     title="Manager"
+     login="admin"
+     password="admin"
+     password_manager="Plain Text" />
+
+  <grant
+     role="zope.Manager"
+     principal="zope.manager" />
+
+</configure>

inst/bluebream/application.zcml

@@ -0,0 +1,11 @@
+<configure xmlns="http://namespaces.zope.org/zope">
+
+  <include package="loops" file="bluebream.zcml" />
+
+  <include package="loops" file="securitypolicy.zcml" />
+
+  <include file="adminuser.zcml" />
+
+  <includeOverrides file="overrides.zcml" />
+
+</configure>

inst/bluebream/config.py

@@ -0,0 +1,9 @@
+# loops/inst/bluebream/config.py
+
+from dotenv import load_dotenv
+from os import getenv
+
+load_dotenv()
+
+server_port = getenv('SERVER_PORT', '8099')
+

inst/bluebream/env.in

@@ -0,0 +1,8 @@
+# loops/inst/bluebream/.env
+
+SERVER_PORT=8800
+
+DBNAME=ccotest
+DBUSER=ccotest
+DBPASSWORD=cco
+DBSCHEMA=testing

inst/bluebream/main.py

@@ -0,0 +1,15 @@
+# loops/inst/bluebream/main.py
+
+import waitress
+from zope.app.wsgi import config, getWSGIApplication
+
+def run(app, config):
+    port = int(config.server_port)
+    #print(f'Serving on port {port}.')
+    waitress.serve(app, port=port)
+
+
+if __name__ == '__main__':
+    import config
+    app = getWSGIApplication('zope.conf')
+    run(app, config)

inst/bluebream/overrides.zcml

@@ -0,0 +1,4 @@
+<configure xmlns="http://namespaces.zope.org/zope">
+
+</configure>
+

inst/bluebream/zope.conf

@@ -0,0 +1,39 @@
+# loops/inst/bluebream/zope.conf
+# main zope configuration file for deployment
+
+# Identify the component configuration used to define the site:
+site-definition application.zcml
+
+<zodb>
+
+  <filestorage>
+    path var/filestorage/Data.fs
+    blob-dir var/blob
+  </filestorage>
+
+# Uncomment this if you want to connect to a ZEO server instead:
+#  <zeoclient>
+#    server localhost:8100
+#    storage 1
+#    # ZEO client cache, in bytes
+#    cache-size 20MB
+#    # Uncomment to have a persistent disk cache
+#    #client zeo1
+#  </zeoclient>
+</zodb>
+
+<eventlog>
+  # This sets up logging to both a file and to standard output (STDOUT).
+  # The "path" setting can be a relative or absolute filesystem path or
+  # the tokens STDOUT or STDERR.
+
+  <logfile>
+    path var/log/bluebream.log
+    formatter zope.exceptions.log.Formatter
+  </logfile>
+
+  <logfile>
+    path STDOUT
+    formatter zope.exceptions.log.Formatter
+  </logfile>
+</eventlog>

inst/loops/adminuser.zcml.in

@@ -0,0 +1,14 @@
+<configure xmlns="http://namespaces.zope.org/zope">
+
+  <principal
+     id="zope.manager"
+     title="Manager"
+     login="admin"
+     password="admin"
+     password_manager="Plain Text" />
+
+  <grant
+     role="zope.Manager"
+     principal="zope.manager" />
+
+</configure>

inst/loops/application.zcml

@@ -0,0 +1,33 @@
+<configure xmlns="http://namespaces.zope.org/zope">
+
+  <include package="loops" file="bluebream.zcml" />
+
+  <include package="loops" file="securitypolicy.zcml" />
+
+  <module module="loops.patch" />
+
+  <include file="adminuser.zcml" />
+
+  <include package="cybertools" />
+  <include package="cybertools.ajax.dojo" />
+  <include package="cybertools.catalog" />
+  <include package="cybertools.composer.layout" />
+  <include package="cybertools.container" />
+  <!--<include package="cybertools.pyscript" />-->
+  <!--<include package="cybertools.xedit" />-->
+
+  <include package="loops" />
+
+  <!--<include package="cco.schema" />
+  <include package="cco.skin.r2" />
+  <include package="cco.webapi" />
+  <include package="cyberapps.ccmkg" />
+  <include package="cyberapps.knowledge" />-->
+
+  <include package="loops.server" file="auth.zcml" />
+
+  <!-- Override registrations -->
+  <includeOverrides package="loops" file="overrides.zcml" />
+  <includeOverrides file="overrides.zcml" />
+
+</configure>

inst/loops/config.py

@@ -0,0 +1,45 @@
+# loops/inst/loops/config.py
+
+from dotenv import load_dotenv
+from os import getenv
+
+load_dotenv()
+
+server_id = getenv('SERVER_ID')
+zope_conf = getenv('ZOPE_CONF', 'zope.conf')
+server_port = getenv('SERVER_PORT',
+        server_id and getenv(f'SERVER_PORT_{server_id}')) or '8080'
+base_url = getenv('BASE_URL', 
+        server_id and getenv(f'BASE_URL_{server_id}')) or 'https://test.example.com'
+
+shell_pw = (getenv('SHELL_PW', 'dummy'))
+loops_path = (getenv('LOOPS_PATH', 'loops/demo'))
+
+# storage settings
+from scopes.storage.db.postgres import StorageFactory
+dbengine = getenv('DBENGINE', 'postgresql+psycopg')
+dbname = getenv('DBNAME', 'demo')
+dbuser = getenv('DBUSER', 'demo')
+dbpassword = getenv('DBPASSWORD', 'secret')
+dbschema = getenv('DBSCHEMA', 'demo')
+
+# OpenID Connect (OIDC, e.g. via zitadel) authentication settings
+oidc_provider = getenv('OIDC_PROVIDER', '') #'https://instance1-abcdef.zitadel.cloud')
+oidc_client_id = getenv('OIDC_CLIENT_ID', '12345')
+oidc_params = dict(
+    op_config_url=oidc_provider + '/.well-known/openid-configuration',
+    op_uris=None,
+    op_keys=None,
+    op_project_scope='urn:zitadel:iam:org:project:id:zitadel:aud',
+    callback_url=getenv('OIDC_CALLBACK_URL', base_url + '/@@auth_callback'),
+    client_id=oidc_client_id,
+    principal_prefix=getenv('OIDC_PRINCIPAL_PREFIX', 'loops.'),
+    cookie_name=getenv('OIDC_COOKIE_NAME', 'oidc_' + oidc_client_id),
+    cookie_domain=getenv('OIDC_COOKIE_DOMAIN', None),
+    cookie_lifetime=getenv('OIDC_COOKIE_LIFETIME', '86400'),
+    cookie_crypt=getenv('OIDC_COOKIE_CRYPT', None),
+    private_key_file=getenv('OIDC_SERVICE_USER_PRIVATE_KEY_FILE', '.private-key.json'),
+    organization_id=getenv('OIDC_ORGANIZATION_ID', '12346'),
+    project_id=getenv('OIDC_PROJECT_ID', None),
+)
+

inst/loops/env.in

@@ -0,0 +1,12 @@
+# loops/inst/loops/.env
+
+SERVER_ID=0
+SERVER_PORT_0=8800
+
+SHELL_PW=dummy
+LOOPS_PATH=demo
+
+DBNAME=loops
+DBUSER=demouser
+DBPASSWORD=dummy
+DBSCHEMA=demo

inst/loops/overrides.zcml

@@ -0,0 +1,4 @@
+<configure xmlns="http://namespaces.zope.org/zope">
+
+</configure>
+

inst/loops/runserver.sh

@@ -0,0 +1,7 @@
+# inst/loops/runserver.sh
+set -a
+
+# use environment variables for instance-specific configuration:
+#SERVER_ID=0
+
+python -c "from loops.server.main import main; main()"

inst/loops/zope.conf

@@ -0,0 +1,39 @@
+# loops/inst/bluebream/zope.conf
+# main zope configuration file for deployment
+
+# Identify the component configuration used to define the site:
+site-definition application.zcml
+
+<zodb>
+
+  <filestorage>
+    path var/filestorage/Data.$(SERVER_ID).fs
+    blob-dir var/blob.$(SERVER_ID)
+  </filestorage>
+
+# Uncomment this if you want to connect to a ZEO server instead:
+#  <zeoclient>
+#    server $(ZEO_SERVER)
+#    storage 1
+#    # ZEO client cache, in bytes
+#    cache-size $(ZEO_CACHE_SIZE)
+#    # Uncomment to have a persistent disk cache
+#    #client zeo1$(SERVER_ID)
+#  </zeoclient>
+</zodb>
+
+<eventlog>
+  # This sets up logging to both a file and to standard output (STDOUT).
+  # The "path" setting can be a relative or absolute filesystem path or
+  # the tokens STDOUT or STDERR.
+
+  <logfile>
+    path var/log/loops-$(SERVER_ID).log
+    formatter zope.exceptions.log.Formatter
+  </logfile>
+
+  <logfile>
+    path STDOUT
+    formatter zope.exceptions.log.Formatter
+  </logfile>
+</eventlog>

inst/loops/zshell.sh

@@ -0,0 +1,9 @@
+# inst/loops/zshell.sh
+set -a
+
+# use environment variables for instance-specific configuration:
+#SERVER_ID=0
+#LOOPS_PATH=sites/mysite
+
+python -ic "from loops.server import psu; psu.setup()"
+

integrator/content/base.py

@@ -1,54 +0,0 @@
-#
-#  Copyright (c) 2008 Helmut Merz helmutm@cy55.de
-#
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2 of the License, or
-#  (at your option) any later version.
-#
-#  This program 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 General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
-
-"""
-Access to external objects.
-
-$Id$
-"""
-
-import os, re
-
-from zope import component
-from zope.cachedescriptors.property import Lazy
-from zope.component import adapts
-from zope.interface import implements
-
-from cybertools.integrator.interfaces import IContainerFactory
-from loops.common import AdapterBase, adapted
-from loops.integrator.content.interfaces import IExternalAccess
-from loops.interfaces import IConcept
-from loops.type import TypeInterfaceSourceList
-
-
-TypeInterfaceSourceList.typeInterfaces += (IExternalAccess,)
-
-
-class ExternalAccess(AdapterBase):
-    """ A concept adapter for accessing external collection.
-    """
-
-    implements(IExternalAccess)
-    adapts(IConcept)
-
-    _contextAttributes = list(IExternalAccess) + list(IConcept)
-
-    def __call__(self):
-        factory = component.getUtility(IContainerFactory, self.providerName)
-        address = os.path.join(self.baseAddress, self.address or '')
-        return factory(address, __parent__=self.context)

integrator/mail/resource.py

@@ -1,45 +0,0 @@
-#
-#  Copyright (c) 2009 Helmut Merz helmutm@cy55.de
-#
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2 of the License, or
-#  (at your option) any later version.
-#
-#  This program 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 General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
-
-"""
-Adapter for mail resources.
-
-$Id$
-"""
-
-from zope.cachedescriptors.property import Lazy
-from zope import component
-from zope.component import adapts
-from zope.interface import implements
-
-from loops.integrator.mail.interfaces import IMailResource
-from loops.resource import TextDocumentAdapter
-from loops.type import TypeInterfaceSourceList
-
-
-TypeInterfaceSourceList.typeInterfaces += (IMailResource,)
-
-
-class MailResource(TextDocumentAdapter):
-    """ A concept adapter for accessing a mail collection.
-        May delegate access to a named utility.
-    """
-
-    implements(IMailResource)
-
-    _contextAttributes = list(IMailResource)

knowledge/qualification/__init__.py

@@ -1 +0,0 @@
-'''package loops.knowledge.qualification'''

knowledge/qualification/base.py

@@ -1,43 +0,0 @@
-#
-#  Copyright (c) 2013 Helmut Merz helmutm@cy55.de
-#
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2 of the License, or
-#  (at your option) any later version.
-#
-#  This program 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 General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
-
-"""
-Controlling qualification activities of persons.
-
-Central part of CCM competence and certification management framework.
-"""
-
-from zope.component import adapts
-from zope.interface import implementer, implements
-
-from loops.common import AdapterBase
-from loops.interfaces import IConcept
-from loops.knowledge.qualification.interfaces import ICompetence
-from loops.type import TypeInterfaceSourceList
-
-
-TypeInterfaceSourceList.typeInterfaces += (ICompetence,)
-
-
-class Competence(AdapterBase):
-
-    implements(ICompetence)
-
-    _contextAttributes = list(ICompetence)
-
-

loops/README.txt

@@ -23,7 +23,7 @@ with lower-level aspects like type or state management.
 
 Let's also import some common stuff needed later.
 
-  >>> from loops.common import adapted
+  >>> from loops.common import adapted, baseObject
   >>> from loops.setup import addAndConfigureObject
 
 
@@ -48,14 +48,14 @@ top-level loops container and a concept manager:
   >>> cc1 = Concept()
   >>> concepts['cc1'] = cc1
   >>> cc1.title
-  u''
+  ''
   >>> loopsRoot.getLoopsUri(cc1)
   '.loops/concepts/cc1'
 
-  >>> cc2 = Concept(u'Zope 3')
+  >>> cc2 = Concept('Zope 3')
   >>> concepts['cc2'] = cc2
   >>> cc2.title
-  u'Zope 3'
+  'Zope 3'
 
 Now we want to relate the second concept to the first one.
 
@@ -73,11 +73,11 @@ ConceptRelation):
 We can now ask our concepts for their related child and parent concepts:
 
   >>> [getName(c) for c in cc1.getChildren()]
-  [u'cc2']
+  ['cc2']
   >>> len(cc1.getParents())
   0
   >>> [getName(p) for p in cc2.getParents()]
-  [u'cc1']
+  ['cc1']
 
   >>> len(cc2.getChildren())
   0
@@ -90,24 +90,24 @@ a special predicate 'hasType'.
   >>> typeObject = concepts['type']
   >>> typeObject.setConceptType(typeObject)
   >>> typeObject.getConceptType().title
-  u'Type'
+  'Type'
 
-  >>> concepts['unknown'] = Concept(u'Unknown Type')
+  >>> concepts['unknown'] = Concept('Unknown Type')
   >>> unknown = concepts['unknown']
   >>> unknown.setConceptType(typeObject)
   >>> unknown.getConceptType().title
-  u'Type'
+  'Type'
 
   >>> cc1.setConceptType(unknown)
   >>> cc1.getConceptType().title
-  u'Unknown Type'
+  'Unknown Type'
 
-  >>> concepts['topic'] = Concept(u'Topic')
+  >>> concepts['topic'] = Concept('Topic')
   >>> topic = concepts['topic']
   >>> topic.setConceptType(typeObject)
   >>> cc1.setConceptType(topic)
   >>> cc1.getConceptType().title
-  u'Topic'
+  'Topic'
 
 We get a list of types using the ConceptTypeSourceList.
 In order for the type machinery to work we first have to provide a
@@ -124,7 +124,7 @@ type manager.
   >>> from loops.concept import ConceptTypeSourceList
   >>> types = ConceptTypeSourceList(cc1)
   >>> sorted(t.title for t in types)
-  [u'Customer', u'Domain', u'Predicate', u'Topic', u'Type', u'Unknown Type']
+  ['Customer', 'Domain', 'Predicate', 'Topic', 'Type', 'Unknown Type']
 
 Using a PredicateSourceList we can retrieve a list of the available
 predicates.
@@ -136,7 +136,7 @@ Note that the 'hasType' predicate is suppressed from this list as the
 corresponding relation is only assigned via the conceptType attribute:
 
   >>> sorted(t.title for t in predicates)
-  [u'subobject']
+  ['subobject']
 
 Concept Views
 -------------
@@ -146,7 +146,7 @@ Concept Views
 
   >>> children = list(view.children())
   >>> [c.title for c in children]
-  [u'Zope 3']
+  ['Zope 3']
 
 The token attribute provided with the items returned by the children() and
 parents() methods identifies identifies not only the item itself but
@@ -159,14 +159,14 @@ of URIs to item and the predicate of the relationship:
 There is also a concept configuration view that allows updating the
 underlying context object:
 
-  >>> cc3 = Concept(u'loops for Zope 3')
+  >>> cc3 = Concept('loops for Zope 3')
   >>> concepts['cc3'] = cc3
   >>> view = ConceptConfigureView(cc1,
   ...           TestRequest(action='assign', tokens=['.loops/concepts/cc3']))
   >>> view.update()
   True
   >>> sorted(c.title for c in cc1.getChildren())
-  [u'Zope 3', u'loops for Zope 3']
+  ['Zope 3', 'loops for Zope 3']
 
   >>> input = {'action': 'remove', 'qualifier': 'children',
   ...          'form.button.submit': 'Remove Chiildren',
@@ -175,18 +175,18 @@ underlying context object:
   >>> view.update()
   True
   >>> sorted(c.title for c in cc1.getChildren())
-  [u'loops for Zope 3']
+  ['loops for Zope 3']
 
 We can also create a new concept and assign it.
 
   >>> params = {'action': 'create', 'create.name': 'cc4',
-  ...           'create.title': u'New concept',
+  ...           'create.title': 'New concept',
   ...           'create.type': '.loops/concepts/topic'}
   >>> view = ConceptConfigureView(cc1, TestRequest(**params))
   >>> view.update()
   True
   >>> sorted(c.title for c in cc1.getChildren())
-  [u'New concept', u'loops for Zope 3']
+  ['New concept', 'loops for Zope 3']
 
 The concept configuration view provides methods for displaying concept
 types and predicates.
@@ -198,15 +198,15 @@ types and predicates.
   >>> component.provideAdapter(LoopsTerms, (IIterableSource, IBrowserRequest), ITerms)
 
   >>> sorted((t.title, t.token) for t in view.conceptTypes())
-  [(u'Customer', '.loops/concepts/customer'),
-   (u'Domain', '.loops/concepts/domain'),
-   (u'Predicate', '.loops/concepts/predicate'),
-   (u'Topic', '.loops/concepts/topic'),
-   (u'Type', '.loops/concepts/type'),
-   (u'Unknown Type', '.loops/concepts/unknown')]
+  [('Customer', '.loops/concepts/customer'),
+   ('Domain', '.loops/concepts/domain'),
+   ('Predicate', '.loops/concepts/predicate'),
+   ('Topic', '.loops/concepts/topic'),
+   ('Type', '.loops/concepts/type'),
+   ('Unknown Type', '.loops/concepts/unknown')]
 
   >>> sorted((t.title, t.token) for t in view.predicates())
-  [(u'subobject', '.loops/concepts/standard')]
+  [('subobject', '.loops/concepts/standard')]
 
 Index attributes adapter
 ------------------------
@@ -214,10 +214,10 @@ Index attributes adapter
   >>> from loops.concept import IndexAttributes
   >>> idx = IndexAttributes(cc2)
   >>> idx.text()
-  u'cc2 Zope 3'
+  'cc2 Zope 3'
 
   >>> idx.title()
-  u'cc2 Zope 3'
+  'cc2 Zope 3'
 
 
 Resources and what they have to do with Concepts
@@ -233,27 +233,27 @@ A common type of resource is a document:
 
   >>> from loops.interfaces import IDocument
   >>> from loops.resource import Document
-  >>> doc1 = Document(u'Zope Info')
+  >>> doc1 = Document('Zope Info')
   >>> resources['doc1'] = doc1
   >>> doc1.title
-  u'Zope Info'
+  'Zope Info'
   >>> doc1.data
-  u''
+  ''
   >>> doc1.contentType
-  u''
+  ''
 
 We can also directly use Resource objects; these behave like files.
 In fact, by using resource types we can explicitly assign a resource
 the 'file' type, but we will use this feature later:
 
-  >>> img = Resource(u'A png Image')
+  >>> img = Resource('A png Image')
 
 For testing we use some simple files from the tests directory:
 
   >>> from loops import tests
   >>> import os
   >>> path = os.path.join(*tests.__path__)
-  >>> img.data = open(os.path.join(path, 'test_icon.png')).read()
+  >>> img.data = open(os.path.join(path, 'test_icon.png'), 'rb').read()
   >>> img.getSize()
   381
   >>> img.getImageSize()
@@ -261,8 +261,8 @@ For testing we use some simple files from the tests directory:
   >>> img.contentType
   'image/png'
 
-  >>> pdf = Resource(u'A pdf File')
-  >>> pdf.data = open(os.path.join(path, 'test.pdf')).read()
+  >>> pdf = Resource('A pdf File')
+  >>> pdf.data = open(os.path.join(path, 'test.pdf'), 'rb').read()
   >>> pdf.getSize()
   25862
   >>> pdf.getImageSize()
@@ -287,7 +287,7 @@ from concepts to resources:
   ...         'tokens': ['.loops/resources/doc1:.loops/concepts/standard']}
   >>> view = ConceptConfigureView(cc1, TestRequest(form=form))
   >>> [getName(r.context) for r in view.resources()]
-  [u'doc1']
+  ['doc1']
   >>> view.update()
   True
   >>> len(cc1.getResources())
@@ -316,10 +316,10 @@ Index attributes adapter
   >>> component.provideAdapter(FileAdapter, provides=IFile)
   >>> idx = IndexAttributes(doc1)
   >>> idx.text()
-  u''
+  ''
 
   >>> idx.title()
-  u'doc1 Zope Info'
+  'doc1 Zope Info'
 
 
 Views/Nodes: Menus, Menu Items, Listings, Pages, etc
@@ -343,14 +343,14 @@ The view manager has already been created during setup.
 The view space is typically built up with nodes; a node may be a top-level
 menu that may contain other nodes as menu or content items:
 
-  >>> m1 = views['m1'] = Node(u'Menu')
-  >>> m11 = m1['m11'] = Node(u'Zope')
-  >>> m111 = m11['m111'] = Node(u'Zope in General')
-  >>> m112 = m11['m112'] = Node(u'Zope 3')
+  >>> m1 = views['m1'] = Node('Menu')
+  >>> m11 = m1['m11'] = Node('Zope')
+  >>> m111 = m11['m111'] = Node('Zope in General')
+  >>> m112 = m11['m112'] = Node('Zope 3')
   >>> m112.title
-  u'Zope 3'
+  'Zope 3'
   >>> m112.description
-  u''
+  ''
 
 There are a few convienence methods for accessing parent and child nodes:
 
@@ -359,7 +359,7 @@ There are a few convienence methods for accessing parent and child nodes:
   >>> m11.getParentNode() is m1
   True
   >>> [getName(child) for child in m11.getChildNodes()]
-  [u'm111', u'm112']
+  ['m111', 'm112']
 
 What is returned by these may be controlled by the nodeType attribute:
 
@@ -444,13 +444,13 @@ Node Views
   >>> page = view.page
   >>> items = page.textItems
   >>> for item in items:
-  ...     print item.url, item.editable
+  ...     print(item.url, item.editable)
   http://127.0.0.1/loops/views/m1/m11/m112 False
 
   >>> menu = view.menu
   >>> items = menu.menuItems
   >>> for item in items:
-  ...     print item.url, view.selected(item)
+  ...     print(item.url, view.selected(item))
   http://127.0.0.1/loops/views/m1/m11 True
 
 A NodeView provides an itemNum attribute that may be used to count elements
@@ -493,11 +493,11 @@ view; these views we have to provide as multi-adapters:
   >>> len(tt)
   9
   >>> sorted((t.token, t.title) for t in view.targetTypes())[1]
-  ('.loops/concepts/domain', u'Domain')
+  ('.loops/concepts/domain', 'Domain')
   >>> view.update()
   True
   >>> sorted(resources.keys())
-  [u'd001.txt', u'd002.txt', u'd003.txt', u'doc1', u'm1.m11.m111']
+  ['d001.txt', 'd002.txt', 'd003.txt', 'doc1', 'm1.m11.m111']
 
   >>> view.target.title, view.target.token
   ('New Resource', '.loops/resources/m1.m11.m111')
@@ -537,28 +537,28 @@ view for rendering.)
   >>> component.provideAdapter(LoopsType)
   >>> view = NodeView(m112, TestRequest())
   >>> view.renderTarget()
-  u'<pre></pre>'
-  >>> doc1.data = u'Test data\n\nAnother paragraph'
+  '<pre></pre>'
+  >>> doc1.data = 'Test data\n\nAnother paragraph'
   >>> view.renderTarget()
-  u'<pre>Test data\n\nAnother paragraph</pre>'
+  '<pre>Test data\n\nAnother paragraph</pre>'
 
   >>> doc1.contentType = 'text/restructured'
-  >>> doc1.data = u'Test data\n\nAnother `paragraph <para>`_'
+  >>> doc1.data = 'Test data\n\nAnother `paragraph <para>`_'
 
   >>> from loops.wiki.base import wikiLinksActive
   >>> wikiLinksActive(loopsRoot)
   False
 
   >>> view.renderTarget()
-  u'<p>Test data</p>\n<p>Another <a class="reference external" href="para">paragraph</a></p>\n'
+  '<p>Test data</p>\n<p>Another <a class="reference external" href="para">paragraph</a></p>\n'
 
-u'<p>Test data</p>\n<p>Another <a class="reference create"
+'<p>Test data</p>\n<p>Another <a class="reference create"
     href="http://127.0.0.1/loops/wiki/create.html?linkid=0000001">?paragraph</a></p>\n'
 
   >>> #links = loopsRoot.getRecordManager()['links']
   >>> #links['0000001']
 
-<Link ['42', 1, '', '... ...', u'para', None]: {}>
+<Link ['42', 1, '', '... ...', 'para', None]: {}>
 
 If the target object is removed from its container all references
 to it are removed as well. (To make this work we have to handle
@@ -661,9 +661,9 @@ Breadcrumbs
   >>> view = NodeView(m114, request)
   >>> request.annotations.setdefault('loops.view', {})['nodeView'] = view
   >>> view.breadcrumbs()
-  [{'url': 'http://127.0.0.1/loops/views/m1', 'label': u'Menu'},
-   {'url': 'http://127.0.0.1/loops/views/m1/m11', 'label': u'Zope'},
-   {'url': 'http://127.0.0.1/loops/views/m1/m11/m114', 'label': u''}]
+  [{'label': 'Menu', 'url': 'http://127.0.0.1/loops/views/m1'},
+   {'label': 'Zope', 'url': 'http://127.0.0.1/loops/views/m1/m11'},
+   {'label': '', 'url': 'http://127.0.0.1/loops/views/m1/m11/m114'}]
 
 
 End-user Forms and Special Views
@@ -705,8 +705,8 @@ been created during setup.
   >>> custType = TypeConcept(customer)
   >>> custType.options
   []
-  >>> cust1 = concepts['cust1'] = Concept(u'Zope Corporation')
-  >>> cust2 = concepts['cust2'] = Concept(u'cyberconcepts')
+  >>> cust1 = concepts['cust1'] = Concept('Zope Corporation')
+  >>> cust2 = concepts['cust2'] = Concept('cyberconcepts')
   >>> for c in (cust1, cust2): c.conceptType = customer
   >>> custType.options = ('qualifier:assign',)
   >>> ConceptType(cust1).qualifiers
@@ -714,7 +714,7 @@ been created during setup.
 
   >>> form = CreateObjectForm(m112, TestRequest())
   >>> form.presetTypesForAssignment
-  [{'token': 'loops:concept:customer', 'title': u'Customer'}]
+  [{'title': 'Customer', 'token': 'loops:concept:customer'}]
 
 If the node's target is a type concept we don't get any assignments because
 it does not make much sense to assign resources or other concepts as
@@ -736,18 +736,18 @@ on data provided in this form:
   >>> note_tc = concepts['note']
 
   >>> component.provideAdapter(NameChooser)
-  >>> request = TestRequest(form={'title': u'Test Note',
-  ...                             'form.type': u'.loops/concepts/note',
-  ...                             'contentType': u'text/restructured',
-  ...                             'linkUrl': u'http://'})
+  >>> request = TestRequest(form={'title': 'Test Note',
+  ...                             'form.type': '.loops/concepts/note',
+  ...                             'contentType': 'text/restructured',
+  ...                             'linkUrl': 'http://'})
   >>> view = NodeView(m112, request)
   >>> cont = CreateObject(view, request)
   >>> cont.update()
   False
   >>> sorted(resources.keys())
-  [...u'test_note'...]
+  [...'test_note'...]
   >>> resources['test_note'].title
-  u'Test Note'
+  'Test Note'
 
 If there is a concept selected in the combo box we assign this to the newly
 created object:
@@ -755,8 +755,8 @@ created object:
   >>> from loops import util
   >>> topicUid = util.getUidForObject(topic)
   >>> predicateUid = util.getUidForObject(concepts.getDefaultPredicate())
-  >>> request = TestRequest(form={'title': u'Test Note',
-  ...                             'form.type': u'.loops/concepts/note',
+  >>> request = TestRequest(form={'title': 'Test Note',
+  ...                             'form.type': '.loops/concepts/note',
   ...                             'form.assignments.selected':
   ...                                   [':'.join((topicUid, predicateUid))]})
   >>> view = NodeView(m112, request)
@@ -764,22 +764,22 @@ created object:
   >>> cont.update()
   False
   >>> sorted(resources.keys())
-  [...u'test_note-2'...]
+  [...'test_note-2'...]
   >>> note = resources['test_note-2']
   >>> sorted(t.__name__ for t in note.getConcepts())
-  [u'note', u'topic']
+  ['note', 'topic']
 
 When creating an object its name may be automatically generated using the title
 of the object. Let's make sure that the name chooser also handles special
 and possibly critcal cases:
 
   >>> nc = NameChooser(resources)
-  >>> nc.chooseName(u'', Resource(u'abc: (cde)'))
-  u'abc__cde'
-  >>> nc.chooseName(u'', Resource(u'\xdcml\xe4ut'))
-  u'uemlaeut'
-  >>> nc.chooseName(u'', Resource(u'A very very loooooong title'))
-  u'a_title'
+  >>> nc.chooseName('', Resource('abc: (cde)'))
+  'abc__cde'
+  >>> nc.chooseName('', Resource('\xdcml\xe4ut'))
+  'uemlaeut'
+  >>> nc.chooseName('', Resource('A very very loooooong title'))
+  'a_title'
 
 Editing an Object
 -----------------
@@ -796,7 +796,7 @@ that in turns calls formlibs ``setUpWidgets()``.
 The new technique uses the ``fields`` and ``data`` attributes...
 
   >>> for f in view.fields:
-  ...     print f.name, f.fieldType, f.required, f.vocabulary
+  ...     print(f.name, f.fieldType, f.required, f.vocabulary)
   title textline True None
   data textarea False None
   contentType dropdown True <...SimpleVocabulary object...>
@@ -804,22 +804,22 @@ The new technique uses the ``fields`` and ``data`` attributes...
   linkText textline False None
 
   >>> view.data
-  {'linkUrl': u'http://', 'contentType': u'text/restructured', 'data': u'',
-   'linkText': u'', 'title': u'Test Note'}
+  {'title': 'Test Note', 'data': '', 'contentType': 'text/restructured', 
+   'linkUrl': 'http://', 'linkText': ''}
 
 The object is changed via a FormController adapter created for
 a NodeView.
 
   >>> form = dict(
-  ...     title=u'Test Note - changed',
-  ...     contentType=u'text/plain',)
+  ...     title='Test Note - changed',
+  ...     contentType='text/plain',)
   >>> request = TestRequest(form=form)
   >>> view = NodeView(m112, request)
   >>> cont = EditObject(view, request)
   >>> cont.update()
   False
   >>> resources['test_note'].title
-  u'Test Note - changed'
+  'Test Note - changed'
 
 Virtual Targets
 ---------------
@@ -883,13 +883,13 @@ informations about all parents of an object.
 
   >>> parents = m113.getAllParents()
   >>> for p in parents:
-  ...     print p.object.title
+  ...     print(p.object.title)
   Zope
   Menu
 
   >>> parents = resources['test_note'].getAllParents()
   >>> for p in parents:
-  ...     print p.object.title, len(p.relations)
+  ...     print(p.object.title, len(p.relations))
   Note 1
   Type 2
 
@@ -916,10 +916,30 @@ relates ISO country codes with the full name of the country.
   [('at', ['Austria']), ('de', ['Germany'])]
 
   >>> countries.dataAsRecords()
-  [{'value': 'Austria', 'key': 'at'}, {'value': 'Germany', 'key': 'de'}]
+  [{'key': 'at', 'value': 'Austria'}, {'key': 'de', 'value': 'Germany'}]
 
   >>> countries.getRowsByValue('value', 'Germany')
-  [{'value': 'Germany', 'key': 'de'}]
+  [{'key': 'de', 'value': 'Germany'}]
+
+The ``recordstable`` type is a variation of this datable type that contains
+a simple list of records - without a key column. A record in this  type is a
+dictionary with the field name as key and the field value as value.
+
+  >>> from loops.table import IRecordsTable, RecordsTable
+  >>> component.provideAdapter(RecordsTable, provides=IRecordsTable)
+
+  >>> drType = addAndConfigureObject(concepts, Concept, 'recordstable',
+  ...                   title='Records Table', conceptType=concepts['type'],
+  ...                   typeInterface=IRecordsTable)
+
+We just reuse the existing ``countries`` table and convert it to a records table.
+
+  >>> baseObject(countries).setType(drType)
+
+  >>> countries = adapted(concepts['countries'])
+
+  >>> countries.data
+  [{'key': 'at', 'value': 'Austria'}, {'key': 'de', 'value': 'Germany'}]
 
 
 Caching
@@ -931,7 +951,7 @@ To be done...
   >>> obj = resources['test_note']
   >>> cxObj = cached(obj)
   >>> [p.object.title for p in cxObj.getAllParents()]
-  [u'Note', u'Type']
+  ['Note', 'Type']
 
 
 Security

loops/base.py

@@ -1,30 +1,13 @@
-#
-#  Copyright (c) 2017 Helmut Merz helmutm@cy55.de
-#
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2 of the License, or
-#  (at your option) any later version.
-#
-#  This program 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 General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
+# loops.base
 
-"""
-Implementation of loops root object.
+""" Implementation of loops root object.
 """
 
-from zope.app.container.btree import BTreeContainer
-from zope.app.folder.folder import Folder
-from zope.app.folder.interfaces import IFolder
+from zope.container.btree import BTreeContainer
+from zope.site.folder import Folder
+from zope.site.interfaces import IFolder
 from zope.traversing.api import getPath, traverse
-from zope.interface import implements
+from zope.interface import implementer
 
 from cybertools.util.jeep import Jeep
 from loops.interfaces import ILoops
@@ -32,17 +15,8 @@ from loops.interfaces import ILoops
 loopsPrefix = '.loops'
 
 
+@implementer(ILoops)
 class Loops(Folder):
-#class Loops(BTreeContainer):
-
-    implements(ILoops)
-
-    #def getSiteManager(self):
-    #    return self.__parent__.getSiteManager()
-
-    #@property
-    #def _SampleContainer__data(self):
-    #    return self.data
 
     _skinName = ''
     def getSkinName(self): return self._skinName
@@ -72,7 +46,8 @@ class Loops(Folder):
         return self.get('records')
 
     def getLoopsUri(self, obj):
-        return str(loopsPrefix + getPath(obj)[len(getPath(self)):])
+        uri = loopsPrefix + getPath(obj)[len(getPath(self)):]
+        return uri
 
     def loopsTraverse(self, uri):
         prefix = loopsPrefix + '/'

loops/bluebream.zcml

@@ -0,0 +1,68 @@
+<configure 
+    xmlns="http://namespaces.zope.org/zope"
+    xmlns:browser="http://namespaces.zope.org/browser">
+
+  <include package="zope.component" file="meta.zcml" />
+  <include package="zope.security" file="meta.zcml" />
+  <include package="zope.publisher" file="meta.zcml" />
+  <include package="zope.i18n" file="meta.zcml" />
+  <include package="zope.browserresource" file="meta.zcml" />
+  <include package="zope.browsermenu" file="meta.zcml" />
+  <include package="zope.browserpage" file="meta.zcml" />
+  <include package="zope.securitypolicy" file="meta.zcml" />
+  <include package="zope.principalregistry" file="meta.zcml" />
+  <include package="zope.app.publication" file="meta.zcml" />
+  <include package="zope.app.form.browser" file="meta.zcml" />
+  <include package="zope.app.container.browser" file="meta.zcml" />
+
+  <include package="zope.browserresource" />
+  <include package="zope.copypastemove" />
+  <include package="zope.publisher" />
+  <include package="zope.component" />
+  <include package="zope.traversing" />
+  <include package="zope.location" />
+  <include package="zope.site" />
+  <include package="zope.annotation" />
+  <include package="zope.principalregistry" />
+  <include package="zope.container" />
+  <include package="zope.componentvocabulary" />
+  <include package="zope.formlib" />
+  <include package="zope.app.appsetup" />
+  <include package="zope.app.security" />
+  <include package="zope.app.publication" />
+  <include package="zope.app.form.browser" />
+  <include package="zope.app.basicskin" />
+  <include package="zope.browsermenu" />
+  <include package="zope.authentication" />
+  <include package="zope.securitypolicy" />
+  <include package="zope.login" />
+  <include package="zope.session" />
+  <include package="zope.error" />
+  <include package="zope.app.zcmlfiles" file="menus.zcml" />
+  <include package="zope.app.authentication" />
+  <include package="zope.app.security.browser" />
+  <include package="zope.app.catalog" />
+  <include package="zope.traversing.browser" />
+  <include package="zope.browserpage" />
+  <include package="zope.app.schema" />
+  <include package="zope.app.http" />
+  <include package="zope.keyreference" />
+  <include package="zope.intid" />
+  <include package="zope.contentprovider" />
+  <include package="zope.i18n" />
+  <include package="zope.catalog" />
+  <include package="zope.dublincore.browser" />
+
+  <include package="zope.app.zcmlfiles" />
+  <include package="zope.app.i18n" />
+  <include package="zope.app.intid" />
+  <include package="zope.app.renderer" />
+  <include package="zope.app.session" />
+  <include package="zope.sendmail" file="meta.zcml" />
+
+  <browser:defaultView
+        for="zope.container.interfaces.IContainer"
+        name="index.html" />
+
+</configure>
+

loops/browser/action.py

@@ -1,26 +1,9 @@
-#
-#  Copyright (c) 2013 Helmut Merz helmutm@cy55.de
-#
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2 of the License, or
-#  (at your option) any later version.
-#
-#  This program 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 General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
+# loops.browser.action
 
-"""
-Base classes (sort of views) for action portlet items.
+""" Base classes (sort of views) for action portlet items.
 """
 
-from urllib import urlencode
+from urllib.parse import urlencode
 from zope import component
 from zope.app.pagetemplate import ViewPageTemplateFile
 from zope.cachedescriptors.property import Lazy

loops/browser/auth.py

@@ -0,0 +1,79 @@
+# loops.browser.auth
+
+""" Login, logout, unauthorized stuff.
+"""
+
+from zope.app.exception.browser.unauthorized import Unauthorized as DefaultUnauth
+from zope.authentication.interfaces import IAuthentication
+from zope.authentication.interfaces import ILogout, IUnauthenticatedPrincipal
+from zope.browserpage import ViewPageTemplateFile
+from zope.cachedescriptors.property import Lazy
+from zope import component
+from zope.interface import implementer
+
+from loops.browser.concept import ConceptView
+from loops.browser.node import NodeView
+
+
+template = ViewPageTemplateFile('auth.pt')
+
+
+class LoginConcept(ConceptView):
+
+    template = template
+
+    @Lazy
+    def macro(self):
+        return self.template.macros['login_form']
+
+
+class LoginForm(NodeView):
+
+    template = template
+
+    @Lazy
+    def macro(self):
+        return self.template.macros['login_form']
+
+    @Lazy
+    def item(self):
+        return self
+
+
+@implementer(ILogout)
+class Logout(object):
+
+
+    def __init__(self, context, request):
+        self.context = context
+        self.request = request
+
+    def __call__(self):
+        nextUrl = self.request.get('nextURL') or self.request.URL[-1]
+        nx = self.request.response.redirect(nextUrl)
+        if not IUnauthenticatedPrincipal.providedBy(self.request.principal):
+            auth = component.getUtility(IAuthentication)
+            ILogout(auth).logout(self.request)
+        return nx
+
+
+class Unauthorized(ConceptView):
+
+    isTopLevel = True
+
+    def __init__(self, context, request):
+        self.context = context
+        self.request = request
+
+    def __call__(self):
+        response = self.request.response
+        response.setStatus(403)
+        # make sure that squid does not keep the response in the cache
+        response.setHeader('Expires', 'Mon, 26 Jul 1997 05:00:00 GMT')
+        response.setHeader('Cache-Control', 'no-store, no-cache, must-revalidate')
+        response.setHeader('Pragma', 'no-cache')
+        if self.nodeView is None:
+            v = DefaultUnauth(self.context, self.request)
+            return v()
+        url = self.nodeView.topMenu.url
+        response.redirect(url + '/unauthorized')

loops/browser/common.py

@@ -1,45 +1,28 @@
-#
-#  Copyright (c) 2016 Helmut Merz helmutm@cy55.de
-#
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2 of the License, or
-#  (at your option) any later version.
-#
-#  This program 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 General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
+# loops.browser.common
 
-"""
-Common base class for loops browser view classes.
+""" Common base class for loops browser view classes.
 """
 
-from cgi import parse_qs, parse_qsl
 #import mimetypes   # use more specific assignments from cybertools.text
 from datetime import date, datetime
+from logging import getLogger
 import re
 from time import strptime
-from urllib import urlencode
+from urllib.parse import parse_qs, parse_qsl, urlencode
 from zope import component
-from zope.app.form.browser.interfaces import ITerms
-from zope.app.i18n.interfaces import ITranslationDomain
-from zope.app.security.interfaces import IAuthentication, IUnauthenticatedPrincipal
-from zope.app.pagetemplate import ViewPageTemplateFile
-from zope.app.security.interfaces import IUnauthenticatedPrincipal
-from zope.app.security.interfaces import PrincipalLookupError
+from zope.authentication.interfaces import IAuthentication, IUnauthenticatedPrincipal
+from zope.authentication.interfaces import IUnauthenticatedPrincipal
+from zope.authentication.interfaces import PrincipalLookupError
+from zope.browser.interfaces import ITerms
+from zope.browserpage import ViewPageTemplateFile
 from zope.cachedescriptors.property import Lazy
 from zope.dottedname.resolve import resolve
 from zope.dublincore.interfaces import IZopeDublinCore
 from zope.formlib import form
 from zope.formlib.form import FormFields
 from zope.formlib.namedtemplate import NamedTemplate
-from zope.interface import Interface, implements
+from zope.i18n.interfaces import ITranslationDomain
+from zope.interface import Interface, implementer
 from zope.proxy import removeAllProxies
 from zope.publisher.browser import applySkin
 from zope.publisher.interfaces.browser import IBrowserSkinType, IBrowserView
@@ -98,16 +81,20 @@ class NameField(schema.ASCIILine):
 class ViewMode(object):
 
     def __init__(self, name='view', title=None, url=None, active=False,
-                 description=u''):
+                 description=u'', subViewModes=Jeep()):
         self.name = name
         self.title = title
         self.url = url
         self.active = active
         self.description = description
+        self.subViewModes = subViewModes
 
     @property
     def cssClass(self):
-        return self.active and u'active' or u'inactive'
+        result = self.active and u'active' or u'inactive'
+        if self.subViewModes:
+            result += u' sub-modes'
+        return result
 
 
 class IAddForm(Interface):
@@ -205,6 +192,10 @@ class BaseView(GenericView, I18NView, SortableMixin):
         self.context = removeSecurityProxy(context)
         try:
             if not self.checkPermissions():
+                logger = getLogger('loops.browser.common-153')
+                principal = request.principal and request.principal.id
+                msg = 'Unauthorized: %s, %s' % (self.contextInfo, principal)
+                logger.warn(msg)
                 raise Unauthorized(str(self.contextInfo))
         except ForbiddenAttribute:  # ignore when testing
             pass
@@ -904,6 +895,7 @@ class BaseView(GenericView, I18NView, SortableMixin):
 
     @Lazy
     def xeditable(self):
+        return False
         if self.typeOptions('no_external_edit'):
             return False
         ct = getattr(self.context, 'contentType', '')
@@ -952,9 +944,9 @@ class BaseView(GenericView, I18NView, SortableMixin):
                     djConfig='parseOnLoad: true, usePlainJson: true, '
                              #'isDebug: true, '
                              'locale: "%s"' % self.languageInfo.language)
-        jsCall = ('dojo.require("dojo.parser"); '
-                  'dojo.registerModulePath("jocy", "/@@/cybertools.jocy"); '
-                  'dojo.require("jocy.data");')
+        jsCall = ('dojo.require("dojo.parser"); ')
+                  #'dojo.registerModulePath("jocy", "/@@/cybertools.jocy"); '
+                  #'dojo.require("jocy.data");')
         cm.register('js-execute', 'dojo_registration', jsCall=jsCall)
         cm.register('css', identifier='Lightbox.css', position=0,
                     resourceName='ajax.dojo/dojox/image/resources/Lightbox.css',
@@ -1082,13 +1074,12 @@ class LoggedIn(object):
 
 # vocabulary stuff
 
+@implementer(ITerms)
 class SimpleTerms(object):
     """ Provide the ITerms interface, e.g. for usage in selection
         lists.
     """
 
-    implements(ITerms)
-
     def __init__(self, source, request):
         # the source parameter is a list of tuples (token, title).
         self.source = source
@@ -1103,13 +1094,12 @@ class SimpleTerms(object):
         return (token, self.terms[token])
 
 
+@implementer(ITerms)
 class LoopsTerms(object):
     """ Provide the ITerms interface, e.g. for usage in selection
         lists.
     """
 
-    implements(ITerms)
-
     def __init__(self, source, request):
         # the source parameter is a view or adapter of a real context object:
         self.source = source
@@ -1131,12 +1121,11 @@ class LoopsTerms(object):
         return self.loopsRoot.loopsTraverse(token)
 
 
+@implementer(ITerms)
 class InterfaceTerms(object):
     """ Provide the ITerms interface for source list of interfaces.
     """
 
-    implements(ITerms)
-
     def __init__(self, source, request):
         self.source = source
         self.request = request

loops/browser/concept.py

@@ -1,40 +1,22 @@
-#
-#  Copyright (c) 2016 Helmut Merz helmutm@cy55.de
-#
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2 of the License, or
-#  (at your option) any later version.
-#
-#  This program 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 General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
+# loops.browser.concept
 
-"""
-Definition of the concept view classes.
+""" Definition of the concept view classes.
 """
 
 from itertools import groupby
 from zope import interface, component, schema
-from zope.app.catalog.interfaces import ICatalog
-from zope.lifecycleevent import ObjectCreatedEvent, ObjectModifiedEvent
-from zope.app.container.contained import ObjectRemovedEvent
-from zope.app.form.browser.interfaces import ITerms
-from zope.app.form.interfaces import IDisplayWidget
-from zope.app.pagetemplate import ViewPageTemplateFile
-from zope.app.security.interfaces import IUnauthenticatedPrincipal
+from zope.authentication.interfaces import IUnauthenticatedPrincipal
+from zope.browser.interfaces import ITerms
+from zope.browserpage import ViewPageTemplateFile
 from zope.cachedescriptors.property import Lazy
+from zope.catalog.interfaces import ICatalog
+from zope.container.contained import ObjectRemovedEvent
 from zope.dottedname.resolve import resolve
 from zope.event import notify
 from zope.formlib.form import EditForm, FormFields, setUpEditWidgets
+from zope.formlib.interfaces import IDisplayWidget
 from zope.formlib.namedtemplate import NamedTemplate
-from zope.interface import implements
+from zope.lifecycleevent import ObjectCreatedEvent, ObjectModifiedEvent
 from zope.publisher.interfaces import BadRequest
 from zope.publisher.interfaces.browser import IBrowserRequest
 from zope.schema.interfaces import IIterableSource
@@ -308,7 +290,7 @@ class ConceptView(BaseView):
     def breadcrumbsParent(self):
         for p in self.context.getParents([self.defaultPredicate]):
             view = self.nodeView.getViewForTarget(p)
-            if view.showInBreadcrumbs:
+            if view is not None and view.showInBreadcrumbs:
                 return view
         return None
 
@@ -463,7 +445,7 @@ class ConceptView(BaseView):
 
     def parents(self):
         rels = sorted(self.context.getParentRelations(),
-                      key=(lambda x: x.first.title and x.first.title.lower()))
+                      key=(lambda x: x.first.title and x.first.title.lower() or ''))
         for r in rels:
             yield self.childViewFactory(r, self.request)
 

loops/browser/concept_macros.pt

@@ -10,7 +10,9 @@
 
 <metal:data define-macro="conceptdata">
   <div tal:attributes="class string:content-$level;">
+      <tal:block condition="not:title_shown|python:False">
         <metal:block use-macro="view/concept_macros/concepttitle"/>
+      </tal:block>
       <metal:slot define-slot="fields">
         <metal:block use-macro="view/concept_macros/conceptfields" />
       </metal:slot>

loops/browser/configure.zcml

@@ -34,16 +34,18 @@
 
   <!-- login/logout -->
 
-  <page for="loops.interfaces.INode"
+  <!--<page for="loops.interfaces.INode"
         name="login.html"
         class="loops.browser.auth.LoginForm"
-        permission="zope.View" />
+        permission="zope.View" />-->
 
   <page for="loops.interfaces.INode"
         name="logout.html"
         class="loops.browser.auth.Logout"
         permission="zope.View" />
 
+  <!-- see also view/adapter "login.html" in section "query views" -->
+
   <!-- macros -->
 
   <page
@@ -537,6 +539,14 @@
 
   <!-- query views -->
 
+  <!--<zope:adapter
+      name="login.html"
+      for="loops.interfaces.IConcept
+           zope.publisher.interfaces.browser.IBrowserRequest"
+      provides="zope.interface.Interface"
+      factory="loops.browser.auth.LoginConcept"
+      permission="zope.View" />-->
+
   <zope:adapter
       name="list_children.html"
       for="loops.interfaces.IConcept

loops/browser/external.py

@@ -1,28 +1,8 @@
-#
-#  Copyright (c) 2008 Helmut Merz helmutm@cy55.de
-#
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2 of the License, or
-#  (at your option) any later version.
-#
-#  This program 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 General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
+# loops.browser.external
 
-"""
-view class(es) for import/export.
-
-$Id$
+""" view class(es) for import/export.
 """
 
-from zope.interface import Interface, implements
 from zope.app import zapi
 from zope.app.pagetemplate.viewpagetemplatefile import ViewPageTemplateFile
 from zope.cachedescriptors.property import Lazy

loops/browser/form.py

@@ -1,35 +1,18 @@
-#
-#  Copyright (c) 2017 Helmut Merz helmutm@cy55.de
-#
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2 of the License, or
-#  (at your option) any later version.
-#
-#  This program 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 General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
+# loops.browser.form
 
-"""
-Classes for form presentation and processing.
+""" Classes for form presentation and processing.
 """
 
-from urllib import urlencode, unquote_plus
-from zope.app.container.contained import ObjectRemovedEvent
+from urllib.parse import urlencode, unquote_plus
 from zope import component, interface, schema
 from zope.component import adapts
+from zope.container.contained import ObjectRemovedEvent
 from zope.event import notify
 from zope.interface import Interface
 from zope.lifecycleevent import ObjectCreatedEvent, ObjectModifiedEvent
-from zope.app.container.interfaces import INameChooser
-from zope.app.container.contained import ObjectAddedEvent
-from zope.app.pagetemplate import ViewPageTemplateFile
+from zope.container.interfaces import INameChooser
+from zope.lifecycleevent import ObjectAddedEvent
+from zope.browserpage import ViewPageTemplateFile
 from zope.cachedescriptors.property import Lazy
 from zope.contenttype import guess_content_type
 from zope.publisher.browser import FileUpload
@@ -182,7 +165,9 @@ class ObjectForm(NodeView):
                 field = self.schema.fields.get(k)
                 if field:
                     fi = field.getFieldInstance(self.instance)
-                    input = unquote_plus(form[k])
+                    input = form[k]
+                    if isinstance(input, str):
+                        input = unquote_plus(input)
                     data[k] = fi.marshall(fi.unmarshall(input))
                     #data[k] = toUnicode(form[k])
         return data
@@ -364,6 +349,7 @@ class CreateObjectForm(ObjectForm):
     def adapted(self):
         ad = self.typeInterface(Resource())
         ad.storageName = 'unknown'  # hack for file objects: don't try to retrieve data
+        ad.__is_dummy__ = True
         ad.__type__ = adapted(self.typeConcept)
         return ad
 

loops/browser/lobo/standard.py

@@ -1,26 +1,9 @@
-#
-#  Copyright (c) 2012 Helmut Merz helmutm@cy55.de
-#
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2 of the License, or
-#  (at your option) any later version.
-#
-#  This program 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 General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
+# loops.browser.lobo.standard
 
-"""
-View classes for lobo (blueprint-based) layouts.
+""" View classes for lobo (blueprint-based) layouts.
 """
 
-from cgi import parse_qs
+from urllib.parse import parse_qs
 from zope import interface, component
 from zope.app.pagetemplate import ViewPageTemplateFile
 from zope.cachedescriptors.property import Lazy

loops/browser/lobo/tests.py

@@ -1,3 +1,4 @@
+# loops.browser.lobo.tests
 
 import unittest, doctest
 from zope.interface.verify import verifyClass
@@ -12,7 +13,7 @@ class Test(unittest.TestCase):
 def test_suite():
     flags = doctest.NORMALIZE_WHITESPACE | doctest.ELLIPSIS
     return unittest.TestSuite((
-                unittest.makeSuite(Test),
+        unittest.TestLoader().loadTestsFromTestCase(Test),
         doctest.DocFileSuite('README.txt', optionflags=flags),
         ))
 

loops/browser/mobile/default.py

@@ -1,31 +1,11 @@
-#
-#  Copyright (c) 2011 Helmut Merz helmutm@cy55.de
-#
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2 of the License, or
-#  (at your option) any later version.
-#
-#  This program 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 General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
+# loops.browser.mobile.default
 
-"""
-Default layouts for the loops mobile skin.
-
-$Id$
+""" Default layouts for the loops mobile skin.
 """
 
 from zope.app.pagetemplate import ViewPageTemplateFile
 from zope.cachedescriptors.property import Lazy
 from zope import component
-from zope.interface import implements
 
 from cybertools.browser.renderer import RendererFactory
 from cybertools.composer.layout.base import Layout

loops/browser/node.py

@@ -1,35 +1,20 @@
-#
-#  Copyright (c) 2017 Helmut Merz helmutm@cy55.de
-#
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2 of the License, or
-#  (at your option) any later version.
-#
-#  This program 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 General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
+# loops.browser.node
 
-"""
-View class for Node objects.
+""" View class for Node objects.
 """
 
-from urlparse import urlparse, urlunparse
-from zope import component, interface, schema
-from zope.cachedescriptors.property import Lazy
-from zope.annotation.interfaces import IAnnotations
-from zope.app.catalog.interfaces import ICatalog
+from logging import getLogger
+from urllib.parse import urlencode, urlparse, urlunparse
+#from urlparse import urlparse, urlunparse
 from zope.app.container.browser.contents import JustContents
 from zope.app.container.browser.adding import Adding
-from zope.app.container.traversal import ItemTraverser
-from zope.app.pagetemplate import ViewPageTemplateFile
-from zope.app.security.interfaces import IUnauthenticatedPrincipal
+from zope import component, interface, schema
+from zope.annotation.interfaces import IAnnotations
+from zope.authentication.interfaces import IUnauthenticatedPrincipal
+from zope.browserpage import ViewPageTemplateFile
+from zope.cachedescriptors.property import Lazy
+from zope.catalog.interfaces import ICatalog
+from zope.container.traversal import ItemTraverser
 from zope.dottedname.resolve import resolve
 from zope.event import notify
 from zope.lifecycleevent import ObjectCreatedEvent, ObjectModifiedEvent
@@ -37,6 +22,7 @@ from zope.lifecycleevent import Attributes
 from zope.formlib.form import Form, FormFields
 from zope.proxy import removeAllProxies
 from zope.publisher.defaultview import getDefaultViewName
+from zope.publisher.interfaces import NotFound
 from zope.security import canAccess, canWrite, checkPermission
 from zope.security.proxy import removeSecurityProxy
 from zope.traversing.api import getParent, getParents, getPath
@@ -65,6 +51,7 @@ from loops import util
 from loops.util import _
 from loops.versioning.util import getVersion
 
+logger = getLogger('loops.browser.node')
 
 node_macros = ViewPageTemplateFile('node_macros.pt')
 info_macros = ViewPageTemplateFile('info.pt')
@@ -473,6 +460,11 @@ class NodeView(BaseView):
     def active(self, item):
         return item.context == self.context or item.context in self.parents
 
+    @Lazy
+    def logoutUrl(self):
+        nextUrl = urlencode(dict(nextUrl=self.menu.url))
+        return '%s/logout.html?%s' % (self.menu.url, nextUrl)
+
     @Lazy
     def authenticationMethod(self):
         return self.viewAnnotations.get('auth_method') or 'standard'
@@ -589,7 +581,7 @@ class NodeView(BaseView):
     @Lazy
     def typeProvider(self):
         if self.virtualTargetObject is not None:
-            return IType(self.virtualTargetObject).typeProvider
+            return IType(baseObject(self.virtualTargetObject)).typeProvider
         return None
 
     # target viewing and editing support
@@ -777,11 +769,11 @@ class InlineEdit(NodeView):
         if ti is not None:
             target = ti(target)
         data = self.request.form['editorContent']
-        if type(data) != unicode:
+        if not isinstance(data, str):
             try:
                 data = data.decode('ISO-8859-15')  # IE hack
             except UnicodeDecodeError:
-                print 'loops.browser.node.InlineEdit.save():', data
+                print('loops.browser.node.InlineEdit.save():', data)
                 return
         #    data = data.decode('UTF-8')
         target.data = data
@@ -953,9 +945,9 @@ class NodeAdding(Adding):
         return info
 
 
+@interface.implementer(IViewConfiguratorSchema)
 class ViewPropertiesConfigurator(object):
 
-    interface.implements(IViewConfiguratorSchema)
     component.adapts(INode)
 
     def __init__(self, context):
@@ -1041,7 +1033,12 @@ class NodeTraverser(ItemTraverser):
                 viewAnnotations['targetView'] = view
                 view.logInfo('NodeTraverser:targetView = %r' % view)
                 return self.context
+        try:
             obj = super(NodeTraverser, self).publishTraverse(request, name)
+        except NotFound:
+            logger.warn('NodeTraverser: NotFound: URL = %s, name = %r' %
+                            (request.URL, name))
+            raise
         return obj
 
     def getTargetUid(self, request):
@@ -1089,7 +1086,9 @@ def setViewConfiguration(context, request):
     config = IViewConfiguratorSchema(context)
     skinName = config.skinName
     if not skinName:
-        skinName = context.getLoopsRoot().skinName
+        root = removeSecurityProxy(context.getLoopsRoot())
+        skinName = root.skinName
+        #skinName = context.getLoopsRoot().skinName
     if skinName:
         viewAnnotations['skinName'] = skinName
     if config.options:
@@ -1108,12 +1107,12 @@ def getViewConfiguration(context, request):
 class TestView(NodeView):
 
     def __call__(self):
-        print '*** begin'
+        print( '*** begin')
         for i in range(500):
             #x = util.getObjectForUid('1994729849')
             x = util.getObjectForUid('2018653366')
             self.c = list(x.getChildren())
             #self.c = list(x.getChildren([self.defaultPredicate]))
-        print '*** end', len(self.c)
+        print('*** end', len(self.c))
         return 'done'
 

loops/browser/node_macros.pt

@@ -267,19 +267,28 @@
 
 
 <metal:actions define-macro="view_modes">
-  <div style="margin-bottom: 10px"
+  <ul class="view-modes"
       tal:define="viewModes view/viewModes"
       tal:condition="viewModes">
-    <ul class="view-modes">
     <li tal:repeat="mode viewModes"
         tal:attributes="class mode/cssClass">
       <a tal:attributes="href mode/url;
                          title mode/description"
          tal:content="mode/title"
          i18n:translate="" />
+      <ul class="sub-view-modes"
+          tal:define="subModes mode/subViewModes|nothing"
+          tal:condition="subModes">
+        <li tal:repeat="mode subModes"
+            tal:attributes="class mode/cssClass">
+          <a tal:attributes="href mode/url;
+                             title mode/description;"
+             tal:content="mode/title"
+             i18n:translate=""></a>
+        </li>
+      </ul>
     </li>
   </ul>
-  </div>
 </metal:actions>
 
 
@@ -335,8 +344,7 @@
 
 
 <metal:actions define-macro="personal">
-    <div><a href="logout.html?nextURL=login.html"
-            tal:attributes="href string:logout.html?nextURL=${view/menu/url}"
+    <div><a tal:attributes="href view/logoutUrl"
             i18n:translate="">Log out</a></div>
     <tal:actions repeat="action python:view.getAllowedActions('personal')">
       <metal:action use-macro="action/macro" />

loops/browser/node_target.pt

@@ -18,10 +18,6 @@
           <a href="#"
              tal:attributes="href string:${target/url}/@@configure.html"
              tal:content="target/title">Document xy</a>
-          <tal:xedit define="xeditObjectUrl target/url"
-                     condition="target/xeditable">
-            <metal:xedit use-macro="views/xedit_macros/editLink" />
-          </tal:xedit>
         </tal:target>
       </div>
 

loops/browser/relation_macros.pt

@@ -52,7 +52,7 @@
                      tal:attributes="value item/token" />
             </td>
             <td>
-              <a tal:content="item/title"
+              <a tal:content="item/title|string:???"
                  tal:attributes="href string:${item/url}/@@SelectedManagementView.html">
                 Title
               </a>

loops/browser/resource.py

@@ -1,36 +1,18 @@
-#
-#  Copyright (c) 2015 Helmut Merz helmutm@cy55.de
-#
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2 of the License, or
-#  (at your option) any later version.
-#
-#  This program 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 General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
+# loops.browser.resource
 
-"""
-View class for resource objects.
+""" View class for resource objects.
 """
 
 import os.path
-import urllib
+from zope.authentication.interfaces import IUnauthenticatedPrincipal
+from zope.browserpage import ViewPageTemplateFile
 from zope.cachedescriptors.property import Lazy
 from zope import component
-from zope.app.catalog.interfaces import ICatalog
-from zope.app.container.interfaces import INameChooser
-from zope.app.form.browser.textwidgets import FileWidget
-from zope.app.pagetemplate import ViewPageTemplateFile
-from zope.app.security.interfaces import IUnauthenticatedPrincipal
+from zope.catalog.interfaces import ICatalog
+from zope.container.interfaces import INameChooser
 from zope.formlib.form import FormFields
 from zope.formlib.interfaces import DISPLAY_UNWRITEABLE
+from zope.formlib.textwidgets import FileWidget
 from zope.proxy import removeAllProxies
 from zope.schema.interfaces import IBytes
 from zope.security import canAccess, canWrite
@@ -272,7 +254,7 @@ class ResourceView(BaseView):
             #wp = wiki.createPage(getName(self.context))
             wp = wiki.addPage(LoopsWikiPage(self.context))
             wp.text = text
-            #print wp.wiki.getManager()
+            #print(wp.wiki.getManager())
             #return util.toUnicode(wp.render(self.request))
         return super(ResourceView, self).renderText(text, contentType)
 
@@ -467,7 +449,7 @@ class ExternalEditorView(ExternalEditorView, BaseView):
         r.append('meta_type:' + '.'.join((context.__module__, context.__class__.__name__)))
         auth = self.request.get('_auth')
         if auth:
-            print 'ExternalEditorView: auth = ', auth
+            print('ExternalEditorView: auth = ', auth)
             if auth.endswith('\n'):
                 auth = auth[:-1]
             r.append('auth:' + auth)

loops/browser/resource_macros.pt

@@ -72,6 +72,7 @@
     <div>
       <span class="button">
         <a i18n:translate=""
+           target="_blank"
            tal:attributes="href
                 string:${view/virtualTargetUrl}/download.html?version=this">
           Download

loops/browser/skin/lobo/body.pt

@@ -25,6 +25,7 @@
     </div>
 
     <div id="content" class="span-6"
+         tal:attributes="class content_class|string:span-6"
          metal:define-macro="content">
       <metal:breadcrumbs define-slot="breadcrumbs">
         <metal:tabs use-macro="views/node_macros/breadcrumbs" />
@@ -37,7 +38,9 @@
              tal:condition="msg"
              tal:content="msg" />
       </metal:message>
+      <metal:tabs define-slot="view_modes">
         <metal:tabs use-macro="views/node_macros/view_modes" />
+      </metal:tabs>
       <metal:content define-slot="content">
         <tal:content define="item nocall:view/item;
                              level level|python: 1;
@@ -48,13 +51,18 @@
       </metal:content>
     </div>
 
-    <div id="portlets" class="span-2 last">
+    <div id="portlets" class="span-2 last"
+         tal:attributes="class portlets_class|string:span-2 last">
+      <metal:portlet define-slot="portlet-left" >
         <tal:portlet repeat="macro controller/macros/portlet_left">
           <metal:portlet use-macro="macro" />
         </tal:portlet>
+      </metal:portlet>
+      <metal:portlet define-slot="portlet-right" >
         <tal:portlet repeat="macro controller/macros/portlet_right">
           <metal:portlet use-macro="macro" />
         </tal:portlet>
+      </metal:portlet>
     </div>
 
     <div id="footer" class="footer clear"