IdHub/idhub/admin/forms.py

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Python
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import json
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import base64
import jsonschema
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import pandas as pd
from nacl.exceptions import CryptoError
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from django import forms
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from django.core.cache import cache
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from django.utils.translation import gettext_lazy as _
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from django.core.exceptions import ValidationError
from utils import certs
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from idhub.models import (
DID,
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File_datas,
Membership,
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Schemas,
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UserRol,
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VerificableCredential,
)
from idhub_auth.models import User
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class TermsConditionsForm2(forms.Form):
accept = forms.BooleanField(
label=_("Accept terms and conditions of the service"),
required=False
)
def __init__(self, *args, **kwargs):
self.user = kwargs.pop('user', None)
super().__init__(*args, **kwargs)
def clean(self):
data = self.cleaned_data
if data.get("accept"):
self.user.accept_gdpr = True
else:
self.user.accept_gdpr = False
return data
def save(self, commit=True):
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if commit:
self.user.save()
return self.user
return
class EncryptionKeyForm(forms.Form):
key = forms.CharField(
label=_("Key for encrypt the secrets of all system"),
required=True
)
def clean(self):
data = self.cleaned_data
self._key = data["key"]
if not DID.objects.exists():
return data
did = DID.objects.first()
cache.set("KEY_DIDS", self._key, None)
try:
did.get_key_material()
except CryptoError:
cache.set("KEY_DIDS", None)
txt = _("Key no valid!")
raise ValidationError(txt)
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cache.set("KEY_DIDS", None)
return data
def save(self, commit=True):
if commit:
cache.set("KEY_DIDS", self._key, None)
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if not DID.objects.exists():
did = DID.objects.create(label='Default', type=DID.Types.WEB)
did.set_did()
did.save()
return
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class TermsConditionsForm(forms.Form):
accept_privacy = forms.BooleanField(
widget=forms.CheckboxInput(attrs={'class': 'form-check-input'}),
required=False
)
accept_legal = forms.BooleanField(
widget=forms.CheckboxInput(attrs={'class': 'form-check-input'}),
required=False
)
accept_cookies = forms.BooleanField(
widget=forms.CheckboxInput(attrs={'class': 'form-check-input'}),
required=False
)
def __init__(self, *args, **kwargs):
self.user = kwargs.pop('user', None)
super().__init__(*args, **kwargs)
def get_label(self, url, read):
label = _('I read and accepted the')
label += f' <a class="btn btn-green-admin" target="_blank" href="{url}" '
label += f'title="{read}">{read}</a>'
return label
def privacy_label(self):
url = "https://laweb.pangea.org/politica-de-privacitat/"
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read = _("Privacy policy")
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return self.get_label(url, read)
def legal_label(self):
url = "https://laweb.pangea.org/avis-legal/"
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read = _("Legal policy")
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return self.get_label(url, read)
def cookies_label(self):
url = "https://laweb.pangea.org/politica-de-cookies-2/"
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read = _("Cookies policy")
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return self.get_label(url, read)
def clean(self):
data = self.cleaned_data
privacy = data.get("accept_privacy")
legal = data.get("accept_legal")
cookies = data.get("accept_cookies")
if privacy and legal and cookies:
self.user.accept_gdpr = True
else:
self.user.accept_gdpr = False
return data
def save(self, commit=True):
if commit:
self.user.save()
return self.user
return
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class ImportForm(forms.Form):
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did = forms.ChoiceField(label=_("Did"), choices=[])
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eidas1 = forms.ChoiceField(
label=_("Signature with Eidas1"),
choices=[],
required=False
)
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schema = forms.ChoiceField(label=_("Schema"), choices=[])
file_import = forms.FileField(label=_("File import"))
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def __init__(self, *args, **kwargs):
self._schema = None
self._did = None
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self._eidas1 = None
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self.rows = {}
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self.properties = {}
self.users = []
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super().__init__(*args, **kwargs)
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dids = DID.objects.filter(user__isnull=True)
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self.fields['did'].choices = [
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(x.did, x.label) for x in dids.filter(eidas1=False)
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]
self.fields['schema'].choices = [(0, _('Select one'))] + [
(x.id, x.name) for x in Schemas.objects.filter()
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]
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if dids.filter(eidas1=True).exists():
choices = [("", "")]
choices.extend([
(x.did, x.label) for x in dids.filter(eidas1=True)
])
self.fields['eidas1'].choices = choices
else:
self.fields.pop('eidas1')
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def clean(self):
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data = self.cleaned_data["did"]
did = DID.objects.filter(
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user__isnull=True,
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did=data
)
if not did.exists():
raise ValidationError("Did is not valid!")
self._did = did.first()
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eidas1 = self.cleaned_data.get('eidas1')
if eidas1:
self._eidas1 = DID.objects.filter(
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user__isnull=True,
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eidas1=True,
did=eidas1
).first()
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return data
def clean_schema(self):
data = self.cleaned_data["schema"]
schema = Schemas.objects.filter(
id=data
)
if not schema.exists():
raise ValidationError("Schema is not valid!")
self._schema = schema.first()
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try:
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self.json_schema = self._schema.get_credential_subject_schema()
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except Exception:
raise ValidationError("Schema is not valid!")
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return data
def clean_file_import(self):
data = self.cleaned_data["file_import"]
self.file_name = data.name
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if not self._schema:
return data
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df = pd.read_excel(data)
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df.fillna('', inplace=True)
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# convert dates to iso 8601
for col in df.select_dtypes(include='datetime').columns:
df[col] = df[col].dt.strftime("%Y-%m-%d")
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# convert numbers to strings if this is indicate in schema
props = self.json_schema.get("properties", {})
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for col in df.select_dtypes(include=['number']).columns:
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type_col = props.get(col, {}).get("type")
if "string" in type_col:
df[col] = df[col].astype(str)
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data_pd = df.to_dict()
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if not data_pd or df.last_valid_index() is None:
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self.exception("The file you try to import is empty!")
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for n in range(df.last_valid_index()+1):
row = {}
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for k in data_pd.keys():
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if data_pd[k][n] or data_pd[k][n] == 0:
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row[k] = data_pd[k][n]
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user = self.validate_jsonld(n, row)
self.rows[user] = row
return data
def save(self, commit=True):
table = []
for k, v in self.rows.items():
table.append(self.create_credential(k, v))
if commit:
for cred in table:
cred.save()
File_datas.objects.create(file_name=self.file_name)
return table
return
def validate_jsonld(self, line, row):
try:
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jsonschema.validate(
instance=row,
schema=self.json_schema,
format_checker=jsonschema.Draft202012Validator.FORMAT_CHECKER
)
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except jsonschema.exceptions.ValidationError as err:
msg = "line {}: {}".format(line+1, err)
return self.exception(msg)
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user, new = User.objects.get_or_create(email=row.get('email'))
if new:
self.users.append(user)
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user.set_encrypted_sensitive_data()
user.save()
self.create_defaults_dids(user)
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return user
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def create_defaults_dids(self, user):
did = DID(label="Default", user=user, type=DID.Types.WEB)
did.set_did()
did.save()
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def create_credential(self, user, row):
bcred = VerificableCredential.objects.filter(
user=user,
schema=self._schema,
issuer_did=self._did,
status=VerificableCredential.Status.ENABLED
)
if bcred.exists():
cred = bcred.first()
cred.csv_data = json.dumps(row, default=str)
cred.eidas1_did = self._eidas1
return cred
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cred = VerificableCredential(
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verified=False,
user=user,
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csv_data=json.dumps(row, default=str),
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issuer_did=self._did,
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schema=self._schema,
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eidas1_did=self._eidas1
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)
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cred.set_type()
return cred
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def exception(self, msg):
File_datas.objects.create(file_name=self.file_name, success=False)
raise ValidationError(msg)
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class SchemaForm(forms.Form):
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file_template = forms.FileField(label=_("File template"))
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class MembershipForm(forms.ModelForm):
class Meta:
model = Membership
fields = ['type', 'start_date', 'end_date']
def clean_end_date(self):
data = super().clean()
start_date = data['start_date']
end_date = data.get('end_date')
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members = Membership.objects.filter(
type=data['type'],
user=self.instance.user
)
if self.instance.id:
members = members.exclude(id=self.instance.id)
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if members.filter(start_date__lte=start_date, end_date=None).exists():
msg = _("This membership already exists!")
raise forms.ValidationError(msg)
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if (start_date and end_date):
if start_date > end_date:
msg = _("The end date is less than the start date")
raise forms.ValidationError(msg)
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members = members.filter(
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start_date__lte=end_date,
end_date__gte=start_date,
)
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if members.exists():
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msg = _("This membership already exists!")
raise forms.ValidationError(msg)
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if not end_date:
members = members.filter(
start_date__gte=start_date,
)
if members.exists():
msg = _("This membership already exists!")
raise forms.ValidationError(msg)
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return end_date
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class UserRolForm(forms.ModelForm):
class Meta:
model = UserRol
fields = ['service']
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
if not self.instance.id:
user = self.instance.user
choices = self.fields['service'].choices
choices.queryset = choices.queryset.exclude(users__user=user)
self.fields['service'].choices = choices
def clean_service(self):
data = super().clean()
service = UserRol.objects.filter(
service=data['service'],
user=self.instance.user
)
if service.exists():
msg = _("Is not possible to have a duplicate role")
raise forms.ValidationError(msg)
return data['service']
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class ImportCertificateForm(forms.Form):
label = forms.CharField(label=_("Label"))
password = forms.CharField(
label=_("Password of certificate"),
widget=forms.PasswordInput
)
file_import = forms.FileField(label=_("File import"))
def __init__(self, *args, **kwargs):
self._did = None
self._s = None
self._label = None
super().__init__(*args, **kwargs)
def clean(self):
data = super().clean()
file_import = data.get('file_import')
self.pfx_file = file_import.read()
self.file_name = file_import.name
self._pss = data.get('password')
self._label = data.get('label')
if not self.pfx_file or not self._pss:
msg = _("Is not a valid certificate")
raise forms.ValidationError(msg)
self.signer_init()
if not self._s:
msg = _("Is not a valid certificate")
raise forms.ValidationError(msg)
self.new_did()
return data
def new_did(self):
keys = {
"cert": base64.b64encode(self.pfx_file).decode('utf-8'),
"passphrase": self._pss
}
key_material = json.dumps(keys)
self._did = DID(
key_material=key_material,
did=self.file_name,
label=self._label,
eidas1=True,
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type=DID.Types.KEY
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)
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self._did.set_key_material(key_material)
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def save(self, commit=True):
if commit:
self._did.save()
return self._did
return
def signer_init(self):
self._s = certs.load_cert(
self.pfx_file, self._pss.encode('utf-8')
)