Files
mayan-edms/apps/django_gpg/views.py
2011-12-04 05:52:09 -04:00

114 lines
4.1 KiB
Python

from datetime import datetime
from django.utils.translation import ugettext_lazy as _
from django.http import HttpResponseRedirect
from django.shortcuts import render_to_response, get_object_or_404
from django.template import RequestContext
from django.contrib import messages
from django.core.urlresolvers import reverse
from django.utils.safestring import mark_safe
from django.conf import settings
from django.template.defaultfilters import force_escape
from documents.models import Document, RecentDocument
from permissions.api import check_permissions
from django_gpg.api import Key
from django_gpg.runtime import gpg
from django_gpg.exceptions import GPGVerificationError
from django_gpg import PERMISSION_DOCUMENT_VERIFY
def key_list(request, secret=True):
if secret:
object_list = Key.get_all(gpg, secret=True)
title = _(u'Private key list')
else:
object_list = Key.get_all(gpg)
title = _(u'Public key list')
return render_to_response('key_list.html', {
'object_list': object_list,
'title': title,
}, context_instance=RequestContext(request))
def key_delete(request, fingerprint, key_type):
if request.method == 'POST':
try:
secret = key_type == 'sec'
key = Key.get(gpg, fingerprint, secret=secret)
gpg.delete_key(key)
messages.success(request, _(u'Key: %s, deleted successfully.') % fingerprint)
return HttpResponseRedirect(reverse('home_view'))
except Exception, msg:
messages.error(request, msg)
return HttpResponseRedirect(reverse('home_view'))
return render_to_response('generic_confirm.html', {
'title': _(u'Delete key'),
'message': _(u'Are you sure you wish to delete key:%s? If you try to delete a public key that is part of a public/private pair the private key will be deleted as well.') % Key.get(gpg, fingerprint)
}, context_instance=RequestContext(request))
def document_verify(request, document_pk):
check_permissions(request.user, [PERMISSION_DOCUMENT_VERIFY])
document = get_object_or_404(Document, pk=document_pk)
RecentDocument.objects.add_document_for_user(request.user, document)
try:
signature = gpg.verify_w_retry(document.open())
except GPGVerificationError:
signature = None
signature_states = {
'signature bad': {
'text': _(u'Bad signature.'),
'icon': 'cross.png'
},
None: {
'text': _(u'Document not signed or invalid signature.'),
'icon': 'cross.png'
},
'signature error': {
'text': _(u'Signature error.'),
'icon': 'cross.png'
},
'no public key': {
'text': _(u'Document is signed but no public key is available for verification.'),
'icon': 'user_silhouette.png'
},
'signature good': {
'text': _(u'Document is signed, and signature is good.'),
'icon': 'document_signature.png'
},
'signature valid': {
'text': _(u'Document is signed with a valid signature.'),
'icon': 'document_signature.png'
},
}
signature_state = signature_states.get(getattr(signature, 'status', None))
widget = (u'<img style="vertical-align: middle;" src="%simages/icons/%s" />' % (settings.STATIC_URL, signature_state['icon']))
paragraphs = [
_(u'Signature status: %s %s') % (mark_safe(widget), signature_state['text']),
]
if signature:
paragraphs.extend(
[
_(u'Signature ID: %s') % signature.signature_id,
_(u'Key ID: %s') % signature.key_id,
_(u'Timestamp: %s') % datetime.fromtimestamp(int(signature.sig_timestamp)),
_(u'Signee: %s') % force_escape(getattr(signature, 'username', u'')),
]
)
return render_to_response('generic_template.html', {
'title': _(u'signature properties for: %s') % document,
'object': document,
'document': document,
'paragraphs': paragraphs,
}, context_instance=RequestContext(request))