Update and re enable document_signature app

apps/document_signatures/__init__.py

@@ -1,85 +1 @@
-from __future__ import absolute_import
 
-import logging
-
-try:
-    from cStringIO import StringIO
-except ImportError:
-    from StringIO import StringIO
-
-#from django.db.models.signals import post_save
-#from django.dispatch import receiver
-
-from documents.models import Document, DocumentVersion
-from navigation.api import bind_links
-from django_gpg.runtime import gpg
-from django_gpg.exceptions import GPGDecryptionError
-from acls.api import class_permissions
-
-from .models import DocumentVersionSignature
-from .permissions import (
-    PERMISSION_DOCUMENT_VERIFY, PERMISSION_SIGNATURE_UPLOAD,
-    PERMISSION_SIGNATURE_DOWNLOAD, PERMISSION_SIGNATURE_DELETE
-)
-from .links import (document_signature_upload, document_signature_download,
-    document_signature_delete, document_verify)
-
-logger = logging.getLogger(__name__)
-
-
-def document_pre_open_hook(descriptor, instance):
-    if DocumentVersionSignature.objects.has_embedded_signature(instance.document):
-        # If it has an embedded signature decrypt
-        try:
-            result = gpg.decrypt_file(descriptor, close_descriptor=False)
-            # gpg return a string, turn it into a file like object
-        except GPGDecryptionError:
-            # At least return the original raw content
-            descriptor.seek(0)
-            return descriptor
-        else:
-            descriptor.close()
-            return StringIO(result.data)
-    else:
-        # It no embedded signature pass along
-        # Doing this single DB lookup avoids trying to decrypt non signed
-        # files always, which could result in slow down for big non signed
-        # files
-        #descriptor.seek(0)
-        return descriptor
-
-    #try:
-    #    result = gpg.decrypt_file(descriptor, close_descriptor=False)
-    #    # gpg return a string, turn it into a file like object
-    #except GPGDecryptionError:
-    #    # At least return the original raw content
-    #    descriptor.seek(0)
-    #    return descriptor
-    #else:
-    #    descriptor.close()
-    #    return StringIO(result.data)
-
-
-def document_post_save_hook(instance):
-    if not instance.pk:
-        document_signature, created = DocumentVersionSignature.objects.get_or_create(
-            document_version=instance.latest_version,
-        )
-        #DocumentVersionSignature.objects.update_signed_state(instance.document)
-
-#@receiver(post_save, dispatch_uid='check_document_signature_state', sender=DocumentVersion)
-#def check_document_signature_state(sender, instance, **kwargs):
-#    if kwargs.get('created', False):
-#        DocumentVersionSignature.objects.signature_state(instance.document)
-
-
-bind_links([Document], [document_verify], menu_name='form_header')
-bind_links(['document_verify', 'document_signature_upload', 'document_signature_download', 'document_signature_delete'], [document_signature_upload, document_signature_download, document_signature_delete], menu_name='sidebar')
-
-DocumentVersion.register_pre_open_hook(1, document_pre_open_hook)
-DocumentVersion.register_post_save_hook(1, document_post_save_hook)
-
-class_permissions(Document, [
-    PERMISSION_DOCUMENT_VERIFY, PERMISSION_SIGNATURE_UPLOAD,
-    PERMISSION_SIGNATURE_DOWNLOAD, PERMISSION_SIGNATURE_DELETE
-])