dynamicweb/hosting/forms.py

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import datetime
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import logging
import subprocess
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import tempfile
from django import forms
from django.conf import settings
from django.contrib.auth import authenticate
from django.utils.translation import ugettext_lazy as _
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from membership.models import CustomUser
from utils.hosting_utils import get_all_public_keys
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from .models import UserHostingKey, GenericProduct
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logger = logging.getLogger(__name__)
def generate_ssh_key_name():
return '{prefix}{date_time_str}'.format(
prefix=settings.DCL_SSH_KEY_NAME_PREFIX,
date_time_str=datetime.datetime.now().strftime('%m%d%y%H%M%S')
)
class HostingUserLoginForm(forms.Form):
email = forms.CharField(widget=forms.EmailInput())
password = forms.CharField(widget=forms.PasswordInput())
class Meta:
fields = ['email', 'password']
def clean(self):
email = self.cleaned_data.get('email')
password = self.cleaned_data.get('password')
if self.errors:
return self.cleaned_data
is_auth = authenticate(email=email, password=password)
if not is_auth:
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raise forms.ValidationError(
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_("Your username and/or password were incorrect."))
elif is_auth.validated == 0:
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raise forms.ValidationError(
_("Your account is not activated yet."))
return self.cleaned_data
def clean_email(self):
email = self.cleaned_data.get('email')
try:
CustomUser.objects.get(email=email)
return email
except CustomUser.DoesNotExist:
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raise forms.ValidationError(_("User does not exist"))
class ProductModelChoiceField(forms.ModelChoiceField):
def label_from_instance(self, obj):
return obj.product_name
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class GenericPaymentForm(forms.Form):
product_name = ProductModelChoiceField(
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queryset=GenericProduct.objects.all().order_by('product_name'),
empty_label=_("Choose a product"),
)
amount = forms.FloatField(
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widget=forms.TextInput(
attrs={'placeholder': _('Amount in CHF'),
'readonly': 'readonly'}
),
max_value=999999,
min_value=1,
)
recurring = forms.BooleanField(required=False,
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label=_("Recurring monthly"), )
description = forms.CharField(
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widget=forms.Textarea(attrs={'style': "height: 100px;"}),
required=False
)
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class Meta:
model = GenericProduct
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fields = ['product_name', 'amount', 'recurring', 'description']
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def clean_amount(self):
amount = self.cleaned_data.get('amount')
if (float(self.cleaned_data.get('product_name').get_actual_price()) !=
amount):
raise forms.ValidationError(_("Amount field does not match"))
return amount
def clean_recurring(self):
recurring = self.cleaned_data.get('recurring')
if (self.cleaned_data.get('product_name').product_is_subscription !=
(True if recurring else False)):
raise forms.ValidationError(_("Recurring field does not match"))
return recurring
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class ProductPaymentForm(GenericPaymentForm):
def __init__(self, *args, **kwargs):
super(GenericPaymentForm, self).__init__(*args, **kwargs)
self.fields['product_name'].widget = forms.TextInput(
attrs={'placeholder': _('Product name'), 'readonly': 'readonly'}
)
class HostingUserSignupForm(forms.ModelForm):
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confirm_password = forms.CharField(label=_("Confirm Password"),
widget=forms.PasswordInput())
password = forms.CharField(label=_("Password"),
widget=forms.PasswordInput())
class Meta:
model = CustomUser
fields = ['name', 'email', 'password']
widgets = {
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'name': forms.TextInput(
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attrs={'placeholder': _('Enter your name or company name')}),
}
def clean_confirm_password(self):
password = self.cleaned_data.get('password')
confirm_password = self.cleaned_data.get('confirm_password')
if not confirm_password == password:
raise forms.ValidationError("Passwords don't match")
return confirm_password
class UserHostingKeyForm(forms.ModelForm):
private_key = forms.CharField(widget=forms.HiddenInput(), required=False)
public_key = forms.CharField(widget=forms.Textarea(
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attrs={'class': 'form_public_key',
'placeholder': _('Paste here your public key')}),
required=False,
)
user = forms.models.ModelChoiceField(queryset=CustomUser.objects.all(),
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required=False,
widget=forms.HiddenInput())
name = forms.CharField(required=False, widget=forms.TextInput(
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attrs={'class': 'form_key_name',
'placeholder': _('Give a name to your key')}))
def __init__(self, *args, **kwargs):
self.request = kwargs.pop("request")
super(UserHostingKeyForm, self).__init__(*args, **kwargs)
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self.fields['name'].label = _('Key name')
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def clean_public_key(self):
"""
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Validates a public ssh key using `ssh-keygen -lf key.pub`
Also checks if a given key already exists in the database and
alerts the user of it.
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:return:
"""
if 'generate' in self.request.POST:
return self.data.get('public_key')
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KEY_ERROR_MESSAGE = _("Please input a proper SSH key")
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openssh_pubkey_str = self.data.get('public_key').strip()
if openssh_pubkey_str in get_all_public_keys(self.request.user):
key_name = UserHostingKey.objects.filter(
user_id=self.request.user.id,
public_key=openssh_pubkey_str).first().name
KEY_EXISTS_MESSAGE = _(
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"This key exists already with the name \"%(name)s\"") % {
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'name': key_name}
raise forms.ValidationError(KEY_EXISTS_MESSAGE)
with tempfile.NamedTemporaryFile(delete=True) as tmp_public_key_file:
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tmp_public_key_file.write(openssh_pubkey_str.encode('utf-8'))
tmp_public_key_file.flush()
try:
subprocess.check_output(
['ssh-keygen', '-lf', tmp_public_key_file.name])
except subprocess.CalledProcessError as cpe:
logger.debug(
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"Not a correct ssh format {error}".format(error=str(cpe)))
raise forms.ValidationError(KEY_ERROR_MESSAGE)
return openssh_pubkey_str
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def clean_name(self):
return self.data.get('name')
def clean_user(self):
return self.request.user
def clean(self):
cleaned_data = self.cleaned_data
if 'generate' in self.request.POST:
self.cleaned_data['name'] = generate_ssh_key_name()
private_key, public_key = UserHostingKey.generate_keys()
cleaned_data.update({
'private_key': private_key,
'public_key': public_key
})
return cleaned_data
class Meta:
model = UserHostingKey
fields = ['user', 'name', 'public_key']