Files
mayan-edms/mayan/apps/documents/views.py
2016-05-30 06:49:52 -04:00

1295 lines
43 KiB
Python

from __future__ import absolute_import, unicode_literals
import base64
import logging
import urlparse
from django.conf import settings
from django.contrib import messages
from django.core.exceptions import PermissionDenied
from django.core.urlresolvers import resolve, reverse, reverse_lazy
from django.http import HttpResponse, HttpResponseRedirect
from django.shortcuts import render_to_response, get_object_or_404
from django.template import RequestContext
from django.utils.http import urlencode
from django.utils.translation import ugettext_lazy as _, ungettext
from django.views.generic import RedirectView
from acls.models import AccessControlList
from common.compressed_files import CompressedFile
from common.generics import (
ConfirmView, SimpleView, SingleObjectCreateView, SingleObjectDeleteView,
SingleObjectDetailView, SingleObjectEditView, SingleObjectListView
)
from common.mixins import MultipleInstanceActionMixin
from converter.literals import (
DEFAULT_PAGE_NUMBER, DEFAULT_ROTATION, DEFAULT_ZOOM_LEVEL
)
from converter.models import Transformation
from converter.permissions import permission_transformation_delete
from filetransfers.api import serve_file
from permissions import Permission
from .events import event_document_download, event_document_view
from .forms import (
DocumentDownloadForm, DocumentForm, DocumentPageForm, DocumentPreviewForm,
DocumentPropertiesForm, DocumentTypeSelectForm,
DocumentTypeFilenameForm_create, PrintForm
)
from .literals import DOCUMENT_IMAGE_TASK_TIMEOUT, PAGE_RANGE_RANGE
from .models import (
Document, DocumentType, DocumentPage, DocumentTypeFilename,
DocumentVersion, RecentDocument, TrashedDocument
)
from .permissions import (
permission_document_delete, permission_document_download,
permission_document_print, permission_document_properties_edit,
permission_document_restore, permission_document_tools,
permission_document_trash, permission_document_type_create,
permission_document_type_delete, permission_document_type_edit,
permission_document_type_view, permission_document_version_revert,
permission_document_view, permission_empty_trash
)
from .settings import (
setting_preview_size, setting_rotation_step, setting_zoom_percent_step,
setting_zoom_max_level, setting_zoom_min_level
)
from .tasks import (
task_clear_image_cache, task_get_document_page_image,
task_update_page_count
)
from .utils import parse_range
logger = logging.getLogger(__name__)
class ClearImageCacheView(ConfirmView):
extra_context = {
'title': _('Clear the document image cache?')
}
view_permission = permission_document_tools
def view_action(self):
task_clear_image_cache.apply_async()
messages.success(
self.request, _('Document cache clearing queued successfully.')
)
class DocumentListView(SingleObjectListView):
extra_context = {
'hide_links': True,
'title': _('All documents'),
}
object_permission = permission_document_view
def get_document_queryset(self):
return Document.on_organization.defer(
'description', 'uuid', 'date_added', 'language', 'in_trash',
'deleted_date_time'
).all()
def get_queryset(self):
self.queryset = self.get_document_queryset().filter(is_stub=False)
return super(DocumentListView, self).get_queryset()
class DocumentEditView(SingleObjectEditView):
form_class = DocumentForm
object_permission = permission_document_properties_edit
def dispatch(self, request, *args, **kwargs):
result = super(
DocumentEditView, self
).dispatch(request, *args, **kwargs)
self.get_object().add_as_recent_document_for_user(request.user)
return result
def get_extra_context(self):
return {
'object': self.get_object(),
'title': _('Edit properties of document: %s') % self.get_object(),
}
def get_post_action_redirect(self):
return reverse(
'documents:document_properties', args=(self.get_object().pk,)
)
def get_queryset(self):
return Document.on_organization.all()
def get_save_extra_data(self):
return {
'_user': self.request.user
}
class DocumentRestoreView(ConfirmView):
extra_context = {
'title': _('Restore the selected document?')
}
def object_action(self, instance):
source_document = get_object_or_404(
Document, pk=instance.pk
)
try:
Permission.check_permissions(
self.request.user, (permission_document_restore,)
)
except PermissionDenied:
AccessControlList.objects.check_access(
permission_document_restore, self.request.user, source_document
)
instance.restore()
def view_action(self):
instance = get_object_or_404(TrashedDocument, pk=self.kwargs['pk'])
self.object_action(instance=instance)
messages.success(
self.request, _('Document: %(document)s restored.') % {
'document': instance
}
)
class DocumentRestoreManyView(MultipleInstanceActionMixin, DocumentRestoreView):
extra_context = {
'title': _('Restore the selected documents?')
}
success_message = '%(count)d document restored.'
success_message_plural = '%(count)d documents restored.'
def get_queryset(self):
return TrashedDocument.on_organization.all()
class DocumentPageListView(SingleObjectListView):
def dispatch(self, request, *args, **kwargs):
try:
Permission.check_permissions(
self.request.user, (permission_document_view,)
)
except PermissionDenied:
AccessControlList.objects.check_access(
permission_document_view, self.request.user,
self.get_document()
)
return super(
DocumentPageListView, self
).dispatch(request, *args, **kwargs)
def get_document(self):
return get_object_or_404(
Document.on_organization, pk=self.kwargs['pk']
)
def get_queryset(self):
return self.get_document().pages.all()
def get_extra_context(self):
return {
'object': self.get_document(),
'title': _('Pages for document: %s') % self.get_document(),
}
class DocumentPageView(SimpleView):
template_name = 'appearance/generic_form.html'
def dispatch(self, request, *args, **kwargs):
try:
Permission.check_permissions(
request.user, (permission_document_view,)
)
except PermissionDenied:
AccessControlList.objects.check_access(
permission_document_view, request.user,
self.get_object().document
)
return super(
DocumentPageView, self
).dispatch(request, *args, **kwargs)
def get_extra_context(self):
zoom = int(self.request.GET.get('zoom', DEFAULT_ZOOM_LEVEL))
rotation = int(self.request.GET.get('rotation', DEFAULT_ROTATION))
document_page_form = DocumentPageForm(
instance=self.get_object(), zoom=zoom, rotation=rotation
)
base_title = _('Image of: %s') % self.get_object()
if zoom != DEFAULT_ZOOM_LEVEL:
zoom_text = '(%d%%)' % zoom
else:
zoom_text = ''
return {
'form': document_page_form,
'hide_labels': True,
'navigation_object_list': ('page',),
'page': self.get_object(),
'rotation': rotation,
'title': ' '.join([base_title, zoom_text]),
'read_only': True,
'zoom': zoom,
}
def get_object(self):
return get_object_or_404(
DocumentPage.on_organization, pk=self.kwargs['pk']
)
class DocumentPageViewResetView(RedirectView):
pattern_name = 'documents:document_page_view'
class DocumentPreviewView(SingleObjectDetailView):
form_class = DocumentPreviewForm
object_permission = permission_document_view
def dispatch(self, request, *args, **kwargs):
result = super(
DocumentPreviewView, self
).dispatch(request, *args, **kwargs)
self.get_object().add_as_recent_document_for_user(request.user)
event_document_view.commit(
actor=request.user, target=self.get_object()
)
return result
def get_extra_context(self):
return {
'hide_labels': True,
'object': self.get_object(),
'title': _('Preview of document: %s') % self.get_object(),
}
def get_queryset(self):
return Document.on_organization.all()
class DocumentTrashView(ConfirmView):
def get_extra_context(self):
return {
'object': self.get_object(),
'title': _('Move "%s" to the trash?') % self.get_object()
}
def get_object(self):
return get_object_or_404(Document.on_organization, pk=self.kwargs['pk'])
def get_post_action_redirect(self):
return reverse('documents:document_list_recent')
def object_action(self, instance):
try:
Permission.check_permissions(
self.request.user, (permission_document_trash,)
)
except PermissionDenied:
AccessControlList.objects.check_access(
permission_document_trash, self.request.user, instance
)
instance.delete()
def view_action(self):
instance = self.get_object()
self.object_action(instance=instance)
messages.success(
self.request, _('Document: %(document)s moved to trash successfully.') % {
'document': instance
}
)
class DocumentTrashManyView(MultipleInstanceActionMixin, DocumentTrashView):
success_message = '%(count)d document moved to the trash.'
success_message_plural = '%(count)d documents moved to the trash.'
def get_extra_context(self):
return {
'title': _('Move the selected documents to the trash?')
}
def get_queryset(self):
return Document.on_organization.all()
class DocumentTypeDocumentListView(DocumentListView):
def get_document_type(self):
return get_object_or_404(
DocumentType.on_organization, pk=self.kwargs['pk']
)
def get_document_queryset(self):
return self.get_document_type().documents.all()
def get_extra_context(self):
return {
'hide_links': True,
'object': self.get_document_type(),
'title': _('Documents of type: %s') % self.get_document_type()
}
class DocumentTypeListView(SingleObjectListView):
view_permission = permission_document_type_view
def get_extra_context(self):
return {
'hide_link': True,
'title': _('Document types'),
}
def get_queryset(self):
return DocumentType.on_organization.all()
class DocumentTypeCreateView(SingleObjectCreateView):
fields = (
'label', 'trash_time_period', 'trash_time_unit', 'delete_time_period',
'delete_time_unit'
)
post_action_redirect = reverse_lazy('documents:document_type_list')
view_permission = permission_document_type_create
def get_extra_context(self):
return {
'title': _('Create document type'),
}
def get_queryset(self):
return DocumentType.on_organization.all()
class DocumentTypeDeleteView(SingleObjectDeleteView):
post_action_redirect = reverse_lazy('documents:document_type_list')
view_permission = permission_document_type_delete
def get_extra_context(self):
return {
'message': _('All documents of this type will be deleted too.'),
'object': self.get_object(),
'title': _('Delete the document type: %s?') % self.get_object(),
}
def get_queryset(self):
return DocumentType.on_organization.all()
class DocumentTypeEditView(SingleObjectEditView):
fields = (
'label', 'trash_time_period', 'trash_time_unit', 'delete_time_period',
'delete_time_unit'
)
post_action_redirect = reverse_lazy('documents:document_type_list')
view_permission = permission_document_type_edit
def get_extra_context(self):
return {
'object': self.get_object(),
'title': _('Edit document type: %s') % self.get_object(),
}
def get_queryset(self):
return DocumentType.on_organization.all()
class DocumentTypeFilenameCreateView(SingleObjectCreateView):
form_class = DocumentTypeFilenameForm_create
def dispatch(self, request, *args, **kwargs):
try:
Permission.check_permissions(
request.user, (permission_document_type_edit,)
)
except PermissionDenied:
AccessControlList.objects.check_access(
permission_document_type_edit, request.user,
self.get_document_type()
)
return super(DocumentTypeFilenameCreateView, self).dispatch(
request, *args, **kwargs
)
def get_document_type(self):
return get_object_or_404(
DocumentType.on_organization, pk=self.kwargs['pk']
)
def get_extra_context(self):
return {
'document_type': self.get_document_type(),
'navigation_object_list': ('document_type',),
'title': _(
'Create quick label for document type: %s'
) % self.get_document_type(),
}
def get_instance_extra_data(self):
return {'document_type': self.get_document_type()}
class DocumentTypeFilenameEditView(SingleObjectEditView):
fields = ('enabled', 'filename',)
view_permission = permission_document_type_edit
def get_extra_context(self):
document_type_filename = self.get_object()
return {
'document_type': document_type_filename.document_type,
'filename': document_type_filename,
'navigation_object_list': ('document_type', 'filename',),
'title': _(
'Edit quick label "%(filename)s" from document type '
'"%(document_type)s"'
) % {
'document_type': document_type_filename.document_type,
'filename': document_type_filename
},
}
def get_post_action_redirect(self):
return reverse(
'documents:document_type_filename_list',
args=(self.get_object().document_type.pk,)
)
def get_queryset(self):
return DocumentTypeFilename.on_organization.all()
class DocumentTypeFilenameDeleteView(SingleObjectDeleteView):
view_permission = permission_document_type_edit
def get_extra_context(self):
return {
'document_type': self.get_object().document_type,
'filename': self.get_object(),
'navigation_object_list': ('document_type', 'filename',),
'title': _(
'Delete the quick label: %(label)s, from document type '
'"%(document_type)s"?'
) % {
'document_type': self.get_object().document_type,
'label': self.get_object()
},
}
def get_post_action_redirect(self):
return reverse(
'documents:document_type_filename_list',
args=(self.get_object().document_type.pk,)
)
def get_queryset(self):
return DocumentTypeFilename.on_organization.all()
class DocumentTypeFilenameListView(SingleObjectListView):
view_permission = permission_document_type_view
def get_document_type(self):
return get_object_or_404(
DocumentType.on_organization, pk=self.kwargs['pk']
)
def get_extra_context(self):
return {
'document_type': self.get_document_type(),
'hide_link': True,
'navigation_object_list': ('document_type',),
'title': _(
'Quick labels for document type: %s'
) % self.get_document_type(),
}
def get_queryset(self):
return self.get_document_type().filenames.all()
class DocumentVersionListView(SingleObjectListView):
def dispatch(self, request, *args, **kwargs):
try:
Permission.check_permissions(
request.user, (permission_document_view,)
)
except PermissionDenied:
AccessControlList.objects.check_access(
permission_document_view, request.user, self.get_document()
)
self.get_document().add_as_recent_document_for_user(request.user)
return super(
DocumentVersionListView, self
).dispatch(request, *args, **kwargs)
def get_document(self):
return get_object_or_404(
Document.on_organization, pk=self.kwargs['pk']
)
def get_extra_context(self):
return {
'hide_object': True, 'object': self.get_document(),
'title': _('Versions of document: %s') % self.get_document(),
}
def get_queryset(self):
return self.get_document().versions.order_by('-timestamp')
class DocumentVersionRevertView(ConfirmView):
object_permission = permission_document_version_revert
object_permission_related = 'document'
def get_extra_context(self):
return {
'message': _(
'All later version after this one will be deleted too.'
),
'object': self.get_object().document,
'title': _('Revert to this version?'),
}
def get_object(self):
return get_object_or_404(
DocumentVersion.on_organization, pk=self.kwargs['pk']
)
def view_action(self):
try:
self.get_object().revert(_user=self.request.user)
messages.success(
self.request, _('Document version reverted successfully')
)
except Exception as exception:
messages.error(
self.request,
_('Error reverting document version; %s') % exception
)
class DocumentView(SingleObjectDetailView):
form_class = DocumentPropertiesForm
object_permission = permission_document_view
def dispatch(self, request, *args, **kwargs):
result = super(DocumentView, self).dispatch(request, *args, **kwargs)
self.get_object().add_as_recent_document_for_user(request.user)
return result
def get_extra_context(self):
return {
'document': self.get_object(),
'object': self.get_object(),
'title': _('Properties for document: %s') % self.get_object(),
}
def get_queryset(self):
return Document.on_organization.all()
class EmptyTrashCanView(ConfirmView):
action_cancel_redirect = post_action_redirect = reverse_lazy(
'documents:document_list_deleted'
)
extra_context = {
'title': _('Empty trash?')
}
view_permission = permission_empty_trash
def view_action(self):
for deleted_document in TrashedDocument.on_organization.all():
deleted_document.delete()
messages.success(self.request, _('Trash emptied successfully'))
class RecentDocumentListView(DocumentListView):
extra_context = {
'hide_links': True,
'title': _('Recent documents'),
}
def get_document_queryset(self):
return RecentDocument.objects.get_for_user(self.request.user)
class TrashedDocumentListView(DocumentListView):
extra_context = {
'hide_link': True,
'title': _('Documents in trash'),
}
object_permission = None
def get_document_queryset(self):
queryset = Document.trash.all()
try:
Permission.check_permissions(
self.request.user, (permission_document_view,)
)
except PermissionDenied:
queryset = AccessControlList.objects.filter_by_access(
permission_document_view, self.request.user, queryset
)
return TrashedDocument.on_organization.filter(
pk__in=queryset.values_list('pk', flat=True)
)
class TrashedDocumentDeleteView(ConfirmView):
extra_context = {
'title': _('Delete the selected document?')
}
def object_action(self, instance):
# Special case, we need to check the original document for the delete
# permission. Don't use .on_organization manager as it filters
# trashed documents and we don't want that.
source_document = get_object_or_404(
Document, pk=instance.pk
)
try:
Permission.check_permissions(
self.request.user, (permission_document_delete,)
)
except PermissionDenied:
AccessControlList.objects.check_access(
permission_document_delete, self.request.user, source_document
)
instance.delete()
def view_action(self):
instance = get_object_or_404(
TrashedDocument.on_organization, pk=self.kwargs['pk']
)
self.object_action(instance=instance)
messages.success(
self.request, _('Document: %(document)s deleted.') % {
'document': instance
}
)
class TrashedDocumentDeleteManyView(MultipleInstanceActionMixin, TrashedDocumentDeleteView):
extra_context = {
'title': _('Delete the selected documents?')
}
success_message = '%(count)d document deleted.'
success_message_plural = '%(count)d documents deleted.'
def get_queryset(self):
return TrashedDocument.on_organization.all()
def document_document_type_edit(request, document_id=None, document_id_list=None):
post_action_redirect = None
queryset = Document.on_organization.all()
if document_id:
queryset = queryset.filter(pk=document_id)
post_action_redirect = reverse('documents:document_list_recent')
elif document_id_list:
queryset = queryset.filter(pk__in=document_id_list)
try:
Permission.check_permissions(
request.user, (permission_document_properties_edit,)
)
except PermissionDenied:
queryset = AccessControlList.objects.filter_by_access(
permission_document_properties_edit, request.user, queryset
)
if not queryset:
if document_id:
raise PermissionDenied
else:
messages.error(request, _('Must provide at least one document.'))
return HttpResponseRedirect(
request.META.get('HTTP_REFERER', reverse(settings.LOGIN_REDIRECT_URL))
)
previous = request.POST.get('previous', request.GET.get('previous', request.META.get('HTTP_REFERER', reverse(settings.LOGIN_REDIRECT_URL))))
next = request.POST.get('next', request.GET.get('next', post_action_redirect if post_action_redirect else request.META.get('HTTP_REFERER', reverse(settings.LOGIN_REDIRECT_URL))))
if request.method == 'POST':
form = DocumentTypeSelectForm(request.POST, user=request.user)
if form.is_valid():
for instance in queryset:
instance.set_document_type(
form.cleaned_data['document_type'], _user=request.user
)
messages.success(
request, _(
'Document type for "%s" changed successfully.'
) % instance
)
return HttpResponseRedirect(next)
else:
form = DocumentTypeSelectForm(
initial={'document_type': queryset.first().document_type},
user=request.user
)
context = {
'form': form,
'submit_label': _('Submit'),
'previous': previous,
'next': next,
'title': ungettext(
'Change the type of the selected document.',
'Change the type of the selected documents.',
queryset.count()
)
}
if queryset.count() == 1:
context['object'] = queryset.first()
return render_to_response(
'appearance/generic_form.html', context,
context_instance=RequestContext(request)
)
def document_multiple_document_type_edit(request):
return document_document_type_edit(
request, document_id_list=request.GET.get(
'id_list', request.POST.get('id_list', '')
).split(',')
)
# TODO: Get rid of this view and convert widget to use API and base64 only images
def get_document_image(request, document_id, size=setting_preview_size.value):
# Special case. Allow all active and trashed documents but filter by
# organization, to be able to produce thumbnails for all documents.
document = get_object_or_404(
Document.objects.filter(document_type__in=DocumentType.on_organization.all()),
pk=document_id
)
try:
Permission.check_permissions(request.user, (permission_document_view,))
except PermissionDenied:
AccessControlList.objects.check_access(
permission_document_view, request.user, document
)
page = int(request.GET.get('page', DEFAULT_PAGE_NUMBER))
zoom = int(request.GET.get('zoom', DEFAULT_ZOOM_LEVEL))
version = int(request.GET.get('version', document.latest_version.pk))
if zoom < setting_zoom_min_level.value:
zoom = setting_zoom_min_level.value
if zoom > setting_zoom_max_level.value:
zoom = setting_zoom_max_level.value
rotation = int(request.GET.get('rotation', DEFAULT_ROTATION)) % 360
document_page = document.pages.get(page_number=page)
task = task_get_document_page_image.apply_async(kwargs=dict(document_page_id=document_page.pk, size=size, zoom=zoom, rotation=rotation, as_base64=True, version=version))
data = task.get(timeout=DOCUMENT_IMAGE_TASK_TIMEOUT)
return HttpResponse(base64.b64decode(data.partition('base64,')[2]), content_type='image')
def document_download(request, document_id=None, document_id_list=None, document_version_pk=None):
previous = request.POST.get('previous', request.GET.get('previous', request.META.get('HTTP_REFERER', reverse(settings.LOGIN_REDIRECT_URL))))
queryset = Document.on_organization.all()
if document_id:
documents = queryset.filter(pk=document_id)
elif document_id_list:
documents = queryset.filter(pk__in=document_id_list)
elif document_version_pk:
documents = queryset.filter(
pk=get_object_or_404(
DocumentVersion, pk=document_version_pk
).document.pk
)
try:
Permission.check_permissions(
request.user, (permission_document_download,)
)
except PermissionDenied:
documents = AccessControlList.objects.filter_by_access(
permission_document_download, request.user, documents
)
if not documents:
messages.error(
request, _('Must provide at least one document or version.')
)
return HttpResponseRedirect(
request.META.get(
'HTTP_REFERER', reverse(settings.LOGIN_REDIRECT_URL)
)
)
if document_version_pk:
queryset = DocumentVersion.on_organization.filter(
pk=document_version_pk
)
else:
queryset = DocumentVersion.on_organization.filter(
pk__in=[document.latest_version.pk for document in documents]
)
subtemplates_list = []
subtemplates_list.append(
{
'name': 'appearance/generic_list_subtemplate.html',
'context': {
'title': _('Documents to be downloaded'),
'object_list': queryset,
'hide_link': True,
'hide_object': True,
'hide_links': True,
'scrollable_content': True,
'scrollable_content_height': '200px',
'extra_columns': (
{'name': _('Document'), 'attribute': 'document'},
{'name': _('Date and time'), 'attribute': 'timestamp'},
{'name': _('MIME type'), 'attribute': 'mimetype'},
{'name': _('Encoding'), 'attribute': 'encoding'},
),
}
}
)
if request.method == 'POST':
form = DocumentDownloadForm(request.POST, queryset=queryset)
if form.is_valid():
if form.cleaned_data['compressed'] or queryset.count() > 1:
try:
compressed_file = CompressedFile()
for document_version in queryset:
descriptor = document_version.open()
compressed_file.add_file(
descriptor,
arcname=document_version.document.label
)
descriptor.close()
event_document_download.commit(
actor=request.user,
target=document_version.document
)
compressed_file.close()
return serve_file(
request,
compressed_file.as_file(
form.cleaned_data['zip_filename']
),
save_as='"%s"' % form.cleaned_data['zip_filename'],
content_type='application/zip'
)
except Exception as exception:
if settings.DEBUG:
raise
else:
messages.error(request, exception)
return HttpResponseRedirect(
request.META['HTTP_REFERER']
)
else:
try:
# Test permissions and trigger exception
fd = queryset.first().open()
fd.close()
event_document_download.commit(
actor=request.user, target=queryset.first().document
)
return serve_file(
request,
queryset.first().file,
save_as='"%s"' % queryset.first().document.label,
content_type=queryset.first().mimetype if queryset.first().mimetype else 'application/octet-stream'
)
except Exception as exception:
if settings.DEBUG:
raise
else:
messages.error(request, exception)
return HttpResponseRedirect(
request.META['HTTP_REFERER']
)
else:
form = DocumentDownloadForm(queryset=queryset)
context = {
'form': form,
'previous': previous,
'submit_label': _('Download'),
'subtemplates_list': subtemplates_list,
'title': _('Download documents'),
}
if queryset.count() == 1:
context['object'] = queryset.first().document
return render_to_response(
'appearance/generic_form.html',
context,
context_instance=RequestContext(request)
)
def document_multiple_download(request):
return document_download(
request, document_id_list=request.GET.get(
'id_list', request.POST.get('id_list', '')
).split(',')
)
def document_update_page_count(request, document_id=None, document_id_list=None):
queryset = Document.on_organization.all()
if document_id:
documents = queryset.filter(pk=document_id)
elif document_id_list:
documents = queryset.filter(pk__in=document_id_list)
if not documents:
messages.error(request, _('At least one document must be selected.'))
return HttpResponseRedirect(request.META.get('HTTP_REFERER', reverse(settings.LOGIN_REDIRECT_URL)))
try:
Permission.check_permissions(
request.user, (permission_document_tools,)
)
except PermissionDenied:
documents = AccessControlList.objects.filter_by_access(
permission_document_tools, request.user, documents
)
previous = request.POST.get('previous', request.GET.get('previous', request.META.get('HTTP_REFERER', reverse(settings.LOGIN_REDIRECT_URL))))
if request.method == 'POST':
for document in documents:
task_update_page_count.apply_async(
kwargs={'version_id': document.latest_version.pk}
)
messages.success(
request,
ungettext(
_('Document queued for page count recalculation.'),
_('Documents queued for page count recalculation.'),
documents.count()
)
)
return HttpResponseRedirect(previous)
context = {
'previous': previous,
'title': ungettext(
'Recalculate the page count of the selected document?',
'Recalculate the page count of the selected documents?',
documents.count()
)
}
if documents.count() == 1:
context['object'] = documents.first()
return render_to_response(
'appearance/generic_confirm.html', context,
context_instance=RequestContext(request)
)
def document_multiple_update_page_count(request):
return document_update_page_count(
request, document_id_list=request.GET.get(
'id_list', request.POST.get('id_list', '')
).split(',')
)
def document_clear_transformations(request, document_id=None, document_id_list=None):
queryset = Document.on_organization.all()
if document_id:
documents = queryset.filter(pk=document_id)
post_redirect = documents[0].get_absolute_url()
elif document_id_list:
documents = queryset.filter(pk__in=document_id_list)
post_redirect = None
if not documents:
messages.error(request, _('Must provide at least one document.'))
return HttpResponseRedirect(
request.META.get(
'HTTP_REFERER', reverse(settings.LOGIN_REDIRECT_URL)
)
)
try:
Permission.check_permissions(
request.user, (permission_transformation_delete,)
)
except PermissionDenied:
documents = AccessControlList.objects.filter_by_access(
permission_transformation_delete, request.user, documents
)
previous = request.POST.get('previous', request.GET.get('previous', request.META.get('HTTP_REFERER', post_redirect or reverse('documents:document_list'))))
next = request.POST.get('next', request.GET.get('next', request.META.get('HTTP_REFERER', post_redirect or reverse('documents:document_list'))))
if request.method == 'POST':
for document in documents:
try:
for page in document.pages.all():
Transformation.objects.get_for_model(page).delete()
except Exception as exception:
messages.error(
request, _(
'Error deleting the page transformations for '
'document: %(document)s; %(error)s.'
) % {
'document': document, 'error': exception
}
)
else:
messages.success(
request, _(
'All the page transformations for document: %s, '
'have been deleted successfully.'
) % document
)
return HttpResponseRedirect(next)
context = {
'delete_view': True,
'next': next,
'previous': previous,
'title': ungettext(
'Clear all the page transformations for the selected document?',
'Clear all the page transformations for the selected documents?',
documents.count()
)
}
if documents.count() == 1:
context['object'] = documents.first()
return render_to_response(
'appearance/generic_confirm.html', context,
context_instance=RequestContext(request)
)
def document_multiple_clear_transformations(request):
return document_clear_transformations(
request, document_id_list=request.GET.get(
'id_list', request.POST.get('id_list', '')
).split(',')
)
def document_page_navigation_next(request, document_page_id):
document_page = get_object_or_404(DocumentPage.on_organization, pk=document_page_id)
try:
Permission.check_permissions(request.user, (permission_document_view,))
except PermissionDenied:
AccessControlList.objects.check_access(permission_document_view, request.user, document_page.document)
view = resolve(urlparse.urlparse(request.META.get('HTTP_REFERER', reverse(settings.LOGIN_REDIRECT_URL))).path).view_name
if document_page.page_number >= document_page.siblings.count():
messages.warning(request, _('There are no more pages in this document'))
return HttpResponseRedirect(request.META.get('HTTP_REFERER', reverse(settings.LOGIN_REDIRECT_URL)))
else:
document_page = get_object_or_404(document_page.siblings, page_number=document_page.page_number + 1)
return HttpResponseRedirect('{0}?{1}'.format(reverse(view, args=(document_page.pk,)), request.GET.urlencode()))
def document_page_navigation_previous(request, document_page_id):
document_page = get_object_or_404(DocumentPage.on_organization, pk=document_page_id)
try:
Permission.check_permissions(request.user, (permission_document_view,))
except PermissionDenied:
AccessControlList.objects.check_access(permission_document_view, request.user, document_page.document)
view = resolve(urlparse.urlparse(request.META.get('HTTP_REFERER', reverse(settings.LOGIN_REDIRECT_URL))).path).view_name
if document_page.page_number <= 1:
messages.warning(request, _('You are already at the first page of this document'))
return HttpResponseRedirect(request.META.get('HTTP_REFERER', reverse(settings.LOGIN_REDIRECT_URL)))
else:
document_page = get_object_or_404(document_page.siblings, page_number=document_page.page_number - 1)
return HttpResponseRedirect('{0}?{1}'.format(reverse(view, args=(document_page.pk,)), request.GET.urlencode()))
def document_page_navigation_first(request, document_page_id):
document_page = get_object_or_404(DocumentPage.on_organization, pk=document_page_id)
document_page = get_object_or_404(document_page.siblings, page_number=1)
try:
Permission.check_permissions(request.user, (permission_document_view,))
except PermissionDenied:
AccessControlList.objects.check_access(permission_document_view, request.user, document_page.document)
view = resolve(urlparse.urlparse(request.META.get('HTTP_REFERER', reverse(settings.LOGIN_REDIRECT_URL))).path).view_name
return HttpResponseRedirect('{0}?{1}'.format(reverse(view, args=(document_page.pk,)), request.GET.urlencode()))
def document_page_navigation_last(request, document_page_id):
document_page = get_object_or_404(DocumentPage.on_organization, pk=document_page_id)
document_page = get_object_or_404(document_page.siblings, page_number=document_page.siblings.count())
try:
Permission.check_permissions(request.user, (permission_document_view,))
except PermissionDenied:
AccessControlList.objects.check_access(permission_document_view, request.user, document_page.document)
view = resolve(urlparse.urlparse(request.META.get('HTTP_REFERER', reverse(settings.LOGIN_REDIRECT_URL))).path).view_name
return HttpResponseRedirect('{0}?{1}'.format(reverse(view, args=(document_page.pk,)), request.GET.urlencode()))
def transform_page(request, document_page_id, zoom_function=None, rotation_function=None):
document_page = get_object_or_404(DocumentPage.on_organization, pk=document_page_id)
try:
Permission.check_permissions(request.user, (permission_document_view,))
except PermissionDenied:
AccessControlList.objects.check_access(permission_document_view, request.user, document_page.document)
view = resolve(urlparse.urlparse(request.META.get('HTTP_REFERER', reverse(settings.LOGIN_REDIRECT_URL))).path).view_name
# Get the query string from the referer url
query = urlparse.urlparse(request.META.get('HTTP_REFERER', reverse(settings.LOGIN_REDIRECT_URL))).query
# Parse the query string and get the zoom value
# parse_qs return a dictionary whose values are lists
zoom = int(urlparse.parse_qs(query).get('zoom', ['100'])[0])
rotation = int(urlparse.parse_qs(query).get('rotation', ['0'])[0])
if zoom_function:
zoom = zoom_function(zoom)
if rotation_function:
rotation = rotation_function(rotation)
return HttpResponseRedirect(
'?'.join([
reverse(view, args=(document_page.pk,)),
urlencode({'zoom': zoom, 'rotation': rotation})
])
)
def document_page_zoom_in(request, document_page_id):
return transform_page(
request,
document_page_id,
zoom_function=lambda x: setting_zoom_max_level.value if x + setting_zoom_percent_step.value > setting_zoom_max_level.value else x + setting_zoom_percent_step.value
)
def document_page_zoom_out(request, document_page_id):
return transform_page(
request,
document_page_id,
zoom_function=lambda x: setting_zoom_min_level.value if x - setting_zoom_percent_step.value < setting_zoom_min_level.value else x - setting_zoom_percent_step.value
)
def document_page_rotate_right(request, document_page_id):
return transform_page(
request,
document_page_id,
rotation_function=lambda x: (x + setting_rotation_step.value) % 360
)
def document_page_rotate_left(request, document_page_id):
return transform_page(
request,
document_page_id,
rotation_function=lambda x: (x - setting_rotation_step.value) % 360
)
def document_print(request, document_id):
document = get_object_or_404(Document.on_organization, pk=document_id)
try:
Permission.check_permissions(request.user, (permission_document_print,))
except PermissionDenied:
AccessControlList.objects.check_access(permission_document_print, request.user, document)
document.add_as_recent_document_for_user(request.user)
post_redirect = None
next = request.POST.get('next', request.GET.get('next', request.META.get('HTTP_REFERER', post_redirect or document.get_absolute_url())))
if request.method == 'POST':
form = PrintForm(request.POST)
if form.is_valid():
if form.cleaned_data['page_group'] == PAGE_RANGE_RANGE:
page_range = form.cleaned_data['page_range']
if page_range:
page_range = parse_range(page_range)
pages = document.pages.filter(page_number__in=page_range)
else:
pages = document.pages.all()
else:
pages = document.pages.all()
return render_to_response('documents/document_print.html', {
'appearance_type': 'plain',
'object': document,
'pages': pages,
'title': _('Print: %s') % document,
}, context_instance=RequestContext(request))
else:
form = PrintForm()
return render_to_response('appearance/generic_form.html', {
'form': form,
'object': document,
'next': next,
'title': _('Print: %s') % document,
'submit_label': _('Submit'),
}, context_instance=RequestContext(request))