dpaste/dpaste/forms.py
2018-12-19 15:09:30 +01:00

123 lines
3.7 KiB
Python

import datetime
from django import forms
from django.apps import apps
from django.utils.translation import ugettext_lazy as _
from .highlight import LEXER_CHOICES, LEXER_DEFAULT, LEXER_KEYS
from .models import Snippet
config = apps.get_app_config('dpaste')
def get_expire_values(expires):
if expires == 'never':
expire_type = Snippet.EXPIRE_KEEP
expires = None
elif expires == 'onetime':
expire_type = Snippet.EXPIRE_ONETIME
expires = None
else:
expire_type = Snippet.EXPIRE_TIME
expires = expires and expires or config.EXPIRE_DEFAULT
expires = datetime.datetime.now() + datetime.timedelta(
seconds=int(expires)
)
return expires, expire_type
class SnippetForm(forms.ModelForm):
content = forms.CharField(
label=_('Content'),
widget=forms.Textarea(
attrs={'placeholder': _('Awesome code goes here...')}
),
max_length=config.MAX_CONTENT_LENGTH,
strip=False,
)
lexer = forms.ChoiceField(
label=_('Lexer'),
initial=LEXER_DEFAULT,
choices=LEXER_CHOICES
)
expires = forms.ChoiceField(
label=_('Expires'),
choices=config.EXPIRE_CHOICES,
initial=config.EXPIRE_DEFAULT,
)
rtl = forms.BooleanField(
label=_('Right to Left'),
required=False
)
# Honeypot field
title = forms.CharField(
label=_('Title'),
required=False,
widget=forms.TextInput(attrs={'autocomplete': 'off'}),
)
class Meta:
model = Snippet
fields = ('content', 'lexer', 'rtl')
def __init__(self, request, *args, **kwargs):
super(SnippetForm, self).__init__(*args, **kwargs)
self.request = request
# Set the recently used lexer if we have any
session_lexer = self.request.session.get('lexer')
if session_lexer and session_lexer in LEXER_KEYS:
self.fields['lexer'].initial = session_lexer
# if the lexer is given via GET, set it
if 'l' in request.GET and request.GET['l'] in LEXER_KEYS:
self.fields['lexer'].initial = request.GET['l']
def clean_content(self):
content = self.cleaned_data.get('content', '')
if not content.strip():
raise forms.ValidationError(_('This field is required.'))
return content
def clean_expires(self):
"""
Extract the 'expire_type' from the choice of expire choices.
"""
expires = self.cleaned_data['expires']
expires, expire_type = get_expire_values(expires)
self.cleaned_data['expire_type'] = expire_type
return expires
def clean(self):
"""
The `title` field is a hidden honeypot field. If its filled,
this is likely spam.
"""
if self.cleaned_data.get('title'):
raise forms.ValidationError('This snippet was identified as Spam.')
return self.cleaned_data
def save(self, parent=None, *args, **kwargs):
# Set parent snippet
self.instance.parent = parent
# Add expire timestamp. None indicates 'keep forever', use the default
# null state of the db column for that.
self.instance.expires = self.cleaned_data['expires']
self.instance.expire_type = self.cleaned_data['expire_type']
# Save snippet in the db
super(SnippetForm, self).save(*args, **kwargs)
# Add the snippet to the user session list
self.request.session.setdefault('snippet_list', [])
self.request.session['snippet_list'] += [self.instance.pk]
# Save the lexer in the session so we can use it later again
self.request.session['lexer'] = self.cleaned_data['lexer']
return self.instance