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forms.py
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forms.py
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# -*- coding: utf-8 -*-
from __future__ import unicode_literals
import tempfile
import zipfile
from django import forms
from django.core.files.uploadedfile import File
from django.utils.translation import ugettext_lazy as _
from django.utils.translation import ugettext
from wiki.core.permissions import can_moderate
from wiki.plugins.attachments import models
from wiki.plugins.attachments.models import IllegalFileExtension
class AttachmentForm(forms.ModelForm):
description = forms.CharField(
label=_('Description'),
help_text=_('A short summary of what the file contains'),
required=False
)
def __init__(self, *args, **kwargs):
self.article = kwargs.pop('article', None)
self.request = kwargs.pop('request', None)
self.attachment = kwargs.pop('attachment', None)
super(AttachmentForm, self).__init__(*args, **kwargs)
def clean_file(self):
uploaded_file = self.cleaned_data.get('file', None)
if uploaded_file:
try:
models.extension_allowed(uploaded_file.name)
except IllegalFileExtension as e:
raise forms.ValidationError(e)
return uploaded_file
def save(self, *args, **kwargs):
commit = kwargs.get('commit', True)
attachment_revision = super(AttachmentForm, self).save(commit=False)
# Added because of AttachmentArchiveForm removing file from fields
# should be more elegant
attachment_revision.file = self.cleaned_data['file']
if not self.attachment:
attachment = models.Attachment()
attachment.article = self.article
attachment.original_filename = attachment_revision.get_filename()
if commit:
attachment.save()
attachment.articles.add(self.article)
else:
attachment = self.attachment
attachment_revision.attachment = attachment
attachment_revision.set_from_request(self.request)
if commit:
attachment_revision.save()
return attachment_revision
class Meta:
model = models.AttachmentRevision
fields = ('file', 'description',)
class AttachmentReplaceForm(AttachmentForm):
replace = forms.BooleanField(
label=_('Remove previous'),
help_text=_('Remove previous attachment revisions and their files (to '
'save space)?'),
required=False,
)
class AttachmentArchiveForm(AttachmentForm):
file = forms.FileField( # @ReservedAssignment
label=_('File or zip archive'),
required=True
)
unzip_archive = forms.BooleanField(
label=_('Unzip file'),
help_text=_(
'Create individual attachments for files in a .zip file - directories do not work.'),
required=False)
def __init__(self, *args, **kwargs):
super(AttachmentArchiveForm, self).__init__(*args, **kwargs)
ordered_fields = ['unzip_archive', 'file']
self.fields.keyOrder = ordered_fields + [k
for k in list(
self.fields.keys())
if k not in ordered_fields]
def clean_file(self):
uploaded_file = self.cleaned_data.get('file', None)
if uploaded_file and self.cleaned_data.get('unzip_archive', False):
try:
self.zipfile = zipfile.ZipFile(uploaded_file.file, mode="r")
for zipinfo in self.zipfile.filelist:
try:
models.extension_allowed(zipinfo.filename)
except IllegalFileExtension as e:
raise forms.ValidationError(e)
except zipfile.BadZipfile:
raise forms.ValidationError(ugettext("Not a zip file"))
else:
return super(AttachmentArchiveForm, self).clean_file()
return uploaded_file
def clean(self):
super(AttachmentArchiveForm, self).clean()
if not can_moderate(self.article, self.request.user):
raise forms.ValidationError(
ugettext("User not allowed to moderate this article"))
return self.cleaned_data
def save(self, *args, **kwargs):
# This is not having the intended effect
if 'file' not in self._meta.fields:
self._meta.fields.append('file')
if self.cleaned_data['unzip_archive']:
new_attachments = []
try:
for zipinfo in self.zipfile.filelist:
f = tempfile.NamedTemporaryFile(mode='r+w')
f.write(self.zipfile.read(zipinfo.filename))
f = File(f, name=zipinfo.filename)
try:
attachment = models.Attachment()
attachment.article = self.article
attachment.original_filename = zipinfo.filename
attachment.save()
attachment.articles.add(self.article)
attachment_revision = models.AttachmentRevision()
attachment_revision.file = f
attachment_revision.description = self.cleaned_data[
'description']
attachment_revision.attachment = attachment
attachment_revision.set_from_request(self.request)
attachment_revision.save()
f.close()
except models.IllegalFileExtension:
raise
new_attachments.append(attachment_revision)
except zipfile.BadZipfile:
raise
return new_attachments
else:
return super(AttachmentArchiveForm, self).save(*args, **kwargs)
class Meta(AttachmentForm.Meta):
fields = ['description', ]
class DeleteForm(forms.Form):
"""This form is both used for dereferencing and deleting attachments"""
confirm = forms.BooleanField(label=_('Yes I am sure...'),
required=False)
def clean_confirm(self):
if not self.cleaned_data['confirm']:
raise forms.ValidationError(ugettext('You are not sure enough!'))
return True
class SearchForm(forms.Form):
query = forms.CharField(
label="",
widget=forms.TextInput(
attrs={
'class': 'search-query form-control'}),
)