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Improved, simplified and optimized the document signature verification model and manager

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This commit is contained in:
Roberto Rosario
2012-01-03 06:55:08 -04:00
parent 6a8c86b0a4
commit 4ded57f27d
7 changed files with 478 additions and 67 deletions
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43
apps/document_signatures/__init__.py
View File

@@ -8,7 +8,8 @@ except ImportError:
from StringIO import StringIO
from django.utils.translation import ugettext_lazy as _
from django.db.models.signals import post_save
#from django.db.models.signals import post_save
#from django.dispatch import receiver
from documents.models import Document, DocumentVersion
from navigation.api import register_links
@@ -34,7 +35,9 @@ def doesnt_have_detached_signature(context):
return DocumentVersionSignature.objects.has_detached_signature(context['object']) == False
def document_pre_open_hook(descriptor):
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
@@ -43,12 +46,39 @@ def document_pre_open_hook(descriptor):
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(sender, instance, **kwargs):
if kwargs.get('created', False):
DocumentVersionSignature.objects.signature_state(instance.document)
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)
document_signature_upload = {'text': _(u'upload signature'), 'view': 'document_signature_upload', 'args': 'object.pk', 'famfam': 'pencil_add', 'permissions': [PERMISSION_SIGNATURE_UPLOAD], 'conditional_disable': has_embedded_signature}
document_signature_download = {'text': _(u'download signature'), 'view': 'document_signature_download', 'args': 'object.pk', 'famfam': 'disk', 'permissions': [PERMISSION_SIGNATURE_DOWNLOAD], 'conditional_disable': doesnt_have_detached_signature}
@@ -58,8 +88,7 @@ register_links(Document, [document_verify], menu_name='form_header')
register_links(['document_verify', 'document_signature_upload', 'document_signature_download'], [document_signature_upload, document_signature_download], menu_name='sidebar')
DocumentVersion.register_pre_open_hook(1, document_pre_open_hook)
post_save.connect(document_post_save, sender=DocumentVersion)
DocumentVersion.register_post_save_hook(1, document_post_save_hook)
class_permissions(Document, [
PERMISSION_DOCUMENT_VERIFY,

73
apps/document_signatures/managers.py
View File

@@ -9,35 +9,31 @@ logger = logging.getLogger(__name__)
class DocumentVersionSignatureManager(models.Manager):
#def update_signed_state(self, document):
# document_signature, created = self.model.get_or_create(
# document_version=document.latest_version,
# )
# if document.exists():
# descriptor = document.open()
# try:
# document_signature.signature_state = gpg.verify_file(descriptor).status
# # TODO: give use choice for auto public key fetch?
# # OR maybe new config option
# except GPGVerificationError:
# document_signature.signature_state = None
# finally:
# document_signature.save()
def get_document_signature(self, document):
document_signature, created = self.model.objects.get_or_create(
document_version=document.latest_version,
)
return document_signature
def add_detached_signature(self, document, detached_signature):
document_signature, created = self.model.objects.get_or_create(
document_version=document.latest_version,
)
if not self.signature_state(document):
document_signature = self.get_document_signature(document)
if document_signature.has_embedded_signature:
raise Exception('document already has an embedded signature')
else:
if document_signature.signature_file:
logger.debug('Existing detached signature')
document_signature.delete_detached_signature()
document_signature.signature_file = None
document_signature.save()
document_signature.signature_file = detached_signature
document_signature.save()
else:
raise Exception('document already has an embedded signature')
def has_detached_signature(self, document):
document_signature, created = self.model.objects.get_or_create(
document_version=document.latest_version,
)
document_signature = self.get_document_signature(document)
if document_signature.signature_file:
return True
else:
@@ -46,36 +42,13 @@ class DocumentVersionSignatureManager(models.Manager):
def has_embedded_signature(self, document):
logger.debug('document: %s' % document)
if self.signature_state(document):
return True
else:
return False
document_signature = self.get_document_signature(document)
def signature_state(self, document):
document_signature, created = self.model.objects.get_or_create(
document_version=document.latest_version,
)
logger.debug('created: %s' % created)
if created and document.exists():
descriptor = document.open(raw=True)
try:
document_signature.signature_state = gpg.verify_file(descriptor).status
# TODO: give use choice for auto public key fetch?
# OR maybe new config option
except GPGVerificationError:
document_signature.signature_state = None
finally:
document_signature.save()
#document_signature.signature_state = self.verify_signature(document).status
#document_signature.save()
return document_signature.signature_state
return document_signature.has_embedded_signature
def detached_signature(self, document):
document_signature, created = self.model.objects.get_or_create(
document_version=document.latest_version,
)
document_signature = self.get_document_signature(document)
return document_signature.signature_file.storage.open(document_signature.signature_file.path)
def verify_signature(self, document):

133
apps/document_signatures/migrations/0003_auto__add_field_documentversionsignature_has_embedded_signature.py Normal file
View File

@@ -0,0 +1,133 @@
# encoding: utf-8
import datetime
from south.db import db
from south.v2 import SchemaMigration
from django.db import models
class Migration(SchemaMigration):
def forwards(self, orm):
# Adding field 'DocumentVersionSignature.has_embedded_signature'
db.add_column('document_signatures_documentversionsignature', 'has_embedded_signature', self.gf('django.db.models.fields.BooleanField')(default=False), keep_default=False)
def backwards(self, orm):
# Deleting field 'DocumentVersionSignature.has_embedded_signature'
db.delete_column('document_signatures_documentversionsignature', 'has_embedded_signature')
models = {
'auth.group': {
'Meta': {'object_name': 'Group'},
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
},
'auth.permission': {
'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
},
'auth.user': {
'Meta': {'object_name': 'User'},
'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
},
'comments.comment': {
'Meta': {'ordering': "('submit_date',)", 'object_name': 'Comment', 'db_table': "'django_comments'"},
'comment': ('django.db.models.fields.TextField', [], {'max_length': '3000'}),
'content_type': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'content_type_set_for_comment'", 'to': "orm['contenttypes.ContentType']"}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'ip_address': ('django.db.models.fields.IPAddressField', [], {'max_length': '15', 'null': 'True', 'blank': 'True'}),
'is_public': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
'is_removed': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'object_pk': ('django.db.models.fields.TextField', [], {}),
'site': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['sites.Site']"}),
'submit_date': ('django.db.models.fields.DateTimeField', [], {'default': 'None'}),
'user': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'comment_comments'", 'null': 'True', 'to': "orm['auth.User']"}),
'user_email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
'user_name': ('django.db.models.fields.CharField', [], {'max_length': '50', 'blank': 'True'}),
'user_url': ('django.db.models.fields.URLField', [], {'max_length': '200', 'blank': 'True'})
},
'contenttypes.contenttype': {
'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
},
'document_signatures.documentversionsignature': {
'Meta': {'object_name': 'DocumentVersionSignature'},
'document_version': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['documents.DocumentVersion']"}),
'has_embedded_signature': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'signature_file': ('django.db.models.fields.files.FileField', [], {'max_length': '100', 'null': 'True', 'blank': 'True'}),
'signature_state': ('django.db.models.fields.CharField', [], {'max_length': '16', 'null': 'True', 'blank': 'True'})
},
'documents.document': {
'Meta': {'ordering': "['-date_added']", 'object_name': 'Document'},
'date_added': ('django.db.models.fields.DateTimeField', [], {'db_index': 'True'}),
'description': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
'document_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['documents.DocumentType']", 'null': 'True', 'blank': 'True'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'uuid': ('django.db.models.fields.CharField', [], {'max_length': '48', 'blank': 'True'})
},
'documents.documenttype': {
'Meta': {'ordering': "['name']", 'object_name': 'DocumentType'},
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '32'})
},
'documents.documentversion': {
'Meta': {'unique_together': "(('document', 'major', 'minor', 'micro', 'release_level', 'serial'),)", 'object_name': 'DocumentVersion'},
'checksum': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
'comment': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
'document': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['documents.Document']"}),
'encoding': ('django.db.models.fields.CharField', [], {'default': "''", 'max_length': '64'}),
'file': ('django.db.models.fields.files.FileField', [], {'max_length': '100'}),
'filename': ('django.db.models.fields.CharField', [], {'default': "u''", 'max_length': '255', 'db_index': 'True'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'major': ('django.db.models.fields.PositiveIntegerField', [], {'default': '1'}),
'micro': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0'}),
'mimetype': ('django.db.models.fields.CharField', [], {'default': "''", 'max_length': '64'}),
'minor': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0'}),
'release_level': ('django.db.models.fields.PositiveIntegerField', [], {'default': '1'}),
'serial': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0'}),
'timestamp': ('django.db.models.fields.DateTimeField', [], {})
},
'sites.site': {
'Meta': {'ordering': "('domain',)", 'object_name': 'Site', 'db_table': "'django_site'"},
'domain': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
},
'taggit.tag': {
'Meta': {'object_name': 'Tag'},
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'slug': ('django.db.models.fields.SlugField', [], {'unique': 'True', 'max_length': '100', 'db_index': 'True'})
},
'taggit.taggeditem': {
'Meta': {'object_name': 'TaggedItem'},
'content_type': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'taggit_taggeditem_tagged_items'", 'to': "orm['contenttypes.ContentType']"}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'object_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True'}),
'tag': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'taggit_taggeditem_items'", 'to': "orm['taggit.Tag']"})
}
}
complete_apps = ['document_signatures']

136
apps/document_signatures/migrations/0004_embedded_signature_state_copy.py Normal file
View File

@@ -0,0 +1,136 @@
# encoding: utf-8
import datetime
from south.db import db
from south.v2 import DataMigration
from django.db import models
class Migration(DataMigration):
def forwards(self, orm):
for document_signature in orm.DocumentVersionSignature.objects.all():
if document_signature.signature_state:
document_signature.has_embedded_signature = True
else:
document_signature.has_embedded_signature = False
document_signature.save()
def backwards(self, orm):
# The content of signature_state is lost during the forward migration
# No way to revert
raise RuntimeError("Cannot reverse this migration.")
models = {
'auth.group': {
'Meta': {'object_name': 'Group'},
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
},
'auth.permission': {
'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
},
'auth.user': {
'Meta': {'object_name': 'User'},
'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
},
'comments.comment': {
'Meta': {'ordering': "('submit_date',)", 'object_name': 'Comment', 'db_table': "'django_comments'"},
'comment': ('django.db.models.fields.TextField', [], {'max_length': '3000'}),
'content_type': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'content_type_set_for_comment'", 'to': "orm['contenttypes.ContentType']"}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'ip_address': ('django.db.models.fields.IPAddressField', [], {'max_length': '15', 'null': 'True', 'blank': 'True'}),
'is_public': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
'is_removed': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'object_pk': ('django.db.models.fields.TextField', [], {}),
'site': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['sites.Site']"}),
'submit_date': ('django.db.models.fields.DateTimeField', [], {'default': 'None'}),
'user': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'comment_comments'", 'null': 'True', 'to': "orm['auth.User']"}),
'user_email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
'user_name': ('django.db.models.fields.CharField', [], {'max_length': '50', 'blank': 'True'}),
'user_url': ('django.db.models.fields.URLField', [], {'max_length': '200', 'blank': 'True'})
},
'contenttypes.contenttype': {
'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
},
'document_signatures.documentversionsignature': {
'Meta': {'object_name': 'DocumentVersionSignature'},
'document_version': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['documents.DocumentVersion']"}),
'has_embedded_signature': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'signature_file': ('django.db.models.fields.files.FileField', [], {'max_length': '100', 'null': 'True', 'blank': 'True'}),
'signature_state': ('django.db.models.fields.CharField', [], {'max_length': '16', 'null': 'True', 'blank': 'True'})
},
'documents.document': {
'Meta': {'ordering': "['-date_added']", 'object_name': 'Document'},
'date_added': ('django.db.models.fields.DateTimeField', [], {'db_index': 'True'}),
'description': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
'document_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['documents.DocumentType']", 'null': 'True', 'blank': 'True'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'uuid': ('django.db.models.fields.CharField', [], {'max_length': '48', 'blank': 'True'})
},
'documents.documenttype': {
'Meta': {'ordering': "['name']", 'object_name': 'DocumentType'},
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '32'})
},
'documents.documentversion': {
'Meta': {'unique_together': "(('document', 'major', 'minor', 'micro', 'release_level', 'serial'),)", 'object_name': 'DocumentVersion'},
'checksum': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
'comment': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
'document': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['documents.Document']"}),
'encoding': ('django.db.models.fields.CharField', [], {'default': "''", 'max_length': '64'}),
'file': ('django.db.models.fields.files.FileField', [], {'max_length': '100'}),
'filename': ('django.db.models.fields.CharField', [], {'default': "u''", 'max_length': '255', 'db_index': 'True'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'major': ('django.db.models.fields.PositiveIntegerField', [], {'default': '1'}),
'micro': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0'}),
'mimetype': ('django.db.models.fields.CharField', [], {'default': "''", 'max_length': '64'}),
'minor': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0'}),
'release_level': ('django.db.models.fields.PositiveIntegerField', [], {'default': '1'}),
'serial': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0'}),
'timestamp': ('django.db.models.fields.DateTimeField', [], {})
},
'sites.site': {
'Meta': {'ordering': "('domain',)", 'object_name': 'Site', 'db_table': "'django_site'"},
'domain': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
},
'taggit.tag': {
'Meta': {'object_name': 'Tag'},
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'slug': ('django.db.models.fields.SlugField', [], {'unique': 'True', 'max_length': '100', 'db_index': 'True'})
},
'taggit.taggeditem': {
'Meta': {'object_name': 'TaggedItem'},
'content_type': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'taggit_taggeditem_tagged_items'", 'to': "orm['contenttypes.ContentType']"}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'object_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True'}),
'tag': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'taggit_taggeditem_items'", 'to': "orm['taggit.Tag']"})
}
}
complete_apps = ['document_signatures']

132
apps/document_signatures/migrations/0005_auto__del_field_documentversionsignature_signature_state.py Normal file
View File

@@ -0,0 +1,132 @@
# encoding: utf-8
import datetime
from south.db import db
from south.v2 import SchemaMigration
from django.db import models
class Migration(SchemaMigration):
def forwards(self, orm):
# Deleting field 'DocumentVersionSignature.signature_state'
db.delete_column('document_signatures_documentversionsignature', 'signature_state')
def backwards(self, orm):
# Adding field 'DocumentVersionSignature.signature_state'
db.add_column('document_signatures_documentversionsignature', 'signature_state', self.gf('django.db.models.fields.CharField')(max_length=16, null=True, blank=True), keep_default=False)
models = {
'auth.group': {
'Meta': {'object_name': 'Group'},
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
},
'auth.permission': {
'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
},
'auth.user': {
'Meta': {'object_name': 'User'},
'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
},
'comments.comment': {
'Meta': {'ordering': "('submit_date',)", 'object_name': 'Comment', 'db_table': "'django_comments'"},
'comment': ('django.db.models.fields.TextField', [], {'max_length': '3000'}),
'content_type': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'content_type_set_for_comment'", 'to': "orm['contenttypes.ContentType']"}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'ip_address': ('django.db.models.fields.IPAddressField', [], {'max_length': '15', 'null': 'True', 'blank': 'True'}),
'is_public': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
'is_removed': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'object_pk': ('django.db.models.fields.TextField', [], {}),
'site': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['sites.Site']"}),
'submit_date': ('django.db.models.fields.DateTimeField', [], {'default': 'None'}),
'user': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'comment_comments'", 'null': 'True', 'to': "orm['auth.User']"}),
'user_email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
'user_name': ('django.db.models.fields.CharField', [], {'max_length': '50', 'blank': 'True'}),
'user_url': ('django.db.models.fields.URLField', [], {'max_length': '200', 'blank': 'True'})
},
'contenttypes.contenttype': {
'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
},
'document_signatures.documentversionsignature': {
'Meta': {'object_name': 'DocumentVersionSignature'},
'document_version': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['documents.DocumentVersion']"}),
'has_embedded_signature': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'signature_file': ('django.db.models.fields.files.FileField', [], {'max_length': '100', 'null': 'True', 'blank': 'True'})
},
'documents.document': {
'Meta': {'ordering': "['-date_added']", 'object_name': 'Document'},
'date_added': ('django.db.models.fields.DateTimeField', [], {'db_index': 'True'}),
'description': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
'document_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['documents.DocumentType']", 'null': 'True', 'blank': 'True'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'uuid': ('django.db.models.fields.CharField', [], {'max_length': '48', 'blank': 'True'})
},
'documents.documenttype': {
'Meta': {'ordering': "['name']", 'object_name': 'DocumentType'},
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '32'})
},
'documents.documentversion': {
'Meta': {'unique_together': "(('document', 'major', 'minor', 'micro', 'release_level', 'serial'),)", 'object_name': 'DocumentVersion'},
'checksum': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
'comment': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
'document': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['documents.Document']"}),
'encoding': ('django.db.models.fields.CharField', [], {'default': "''", 'max_length': '64'}),
'file': ('django.db.models.fields.files.FileField', [], {'max_length': '100'}),
'filename': ('django.db.models.fields.CharField', [], {'default': "u''", 'max_length': '255', 'db_index': 'True'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'major': ('django.db.models.fields.PositiveIntegerField', [], {'default': '1'}),
'micro': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0'}),
'mimetype': ('django.db.models.fields.CharField', [], {'default': "''", 'max_length': '64'}),
'minor': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0'}),
'release_level': ('django.db.models.fields.PositiveIntegerField', [], {'default': '1'}),
'serial': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0'}),
'timestamp': ('django.db.models.fields.DateTimeField', [], {})
},
'sites.site': {
'Meta': {'ordering': "('domain',)", 'object_name': 'Site', 'db_table': "'django_site'"},
'domain': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
},
'taggit.tag': {
'Meta': {'object_name': 'Tag'},
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'slug': ('django.db.models.fields.SlugField', [], {'unique': 'True', 'max_length': '100', 'db_index': 'True'})
},
'taggit.taggeditem': {
'Meta': {'object_name': 'TaggedItem'},
'content_type': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'taggit_taggeditem_tagged_items'", 'to': "orm['contenttypes.ContentType']"}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'object_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True'}),
'tag': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'taggit_taggeditem_items'", 'to': "orm['taggit.Tag']"})
}
}
complete_apps = ['document_signatures']

11
apps/document_signatures/models.py
View File

@@ -6,6 +6,7 @@ from django.utils.translation import ugettext_lazy as _
from documents.models import DocumentVersion, get_filename_from_uuid
from documents.conf.settings import STORAGE_BACKEND
from django_gpg.runtime import gpg
from .managers import DocumentVersionSignatureManager
@@ -17,11 +18,19 @@ class DocumentVersionSignature(models.Model):
Model that describes a document version signature properties
'''
document_version = models.ForeignKey(DocumentVersion, verbose_name=_(u'document version'), editable=False)
signature_state = models.CharField(blank=True, null=True, max_length=16, verbose_name=_(u'signature state'), editable=False)
signature_file = models.FileField(blank=True, null=True, upload_to=get_filename_from_uuid, storage=STORAGE_BACKEND(), verbose_name=_(u'signature file'), editable=False)
has_embedded_signature = models.BooleanField(default=False, verbose_name=_(u'has embedded signature'), editable=False)
objects = DocumentVersionSignatureManager()
def delete_detached_signature(self):
self.signature_file.storage.delete(self.signature_file.path)
def save(self, *args, **kwargs):
if not self.pk:
self.has_embedded_signature = gpg.has_embedded_signature(self.document_version.open(raw=True))
super(DocumentVersionSignature, self).save(*args, **kwargs)
class Meta:
verbose_name = _(u'document version signature')
verbose_name_plural = _(u'document version signatures')

1
apps/document_signatures/permissions.py
View File

@@ -5,7 +5,6 @@ from django.utils.translation import ugettext_lazy as _
from permissions.models import PermissionNamespace, Permission
document_signatures_namespace = PermissionNamespace('document_signatures', _(u'Document signatures'))
PERMISSION_DOCUMENT_VERIFY = Permission.objects.register(document_signatures_namespace, 'document_verify', _(u'Verify document signatures'))
PERMISSION_SIGNATURE_UPLOAD = Permission.objects.register(document_signatures_namespace, 'signature_upload', _(u'Upload detached signatures'))
PERMISSION_SIGNATURE_DOWNLOAD = Permission.objects.register(document_signatures_namespace, 'signature_download', _(u'Download detached signatures'))