701 lines
22 KiB
Python
701 lines
22 KiB
Python
import json
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import pytz
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import requests
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import datetime
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from django.db import models
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from django.conf import settings
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from django.core.cache import cache
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from django.template.loader import get_template
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from django.utils.translation import gettext_lazy as _
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from nacl import secret
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from utils.idhub_ssikit import (
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generate_did_controller_key,
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keydid_from_controller_key,
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sign_credential,
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)
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from idhub_auth.models import User
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class Event(models.Model):
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class Types(models.IntegerChoices):
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EV_USR_REGISTERED = 1, "User registered"
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EV_USR_WELCOME = 2, "User welcomed"
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EV_DATA_UPDATE_REQUESTED_BY_USER = 3, "Data update requested by user"
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EV_DATA_UPDATE_REQUESTED = 4, "Data update requested. Pending approval by administrator"
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EV_USR_UPDATED_BY_ADMIN = 5, "User's data updated by admin"
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EV_USR_UPDATED = 6, "Your data updated by admin"
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EV_USR_DELETED_BY_ADMIN = 7, "User deactivated by admin"
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EV_DID_CREATED_BY_USER = 8, "DID created by user"
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EV_DID_CREATED = 9, "DID created"
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EV_DID_DELETED = 10, "DID deleted"
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EV_CREDENTIAL_DELETED_BY_USER = 11, "Credential deleted by user"
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EV_CREDENTIAL_DELETED = 12, "Credential deleted"
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EV_CREDENTIAL_ISSUED_FOR_USER = 13, "Credential issued for user"
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EV_CREDENTIAL_ISSUED = 14, "Credential issued"
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EV_CREDENTIAL_PRESENTED_BY_USER = 15, "Credential presented by user"
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EV_CREDENTIAL_PRESENTED = 16, "Credential presented"
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EV_CREDENTIAL_ENABLED = 17, "Credential enabled"
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EV_CREDENTIAL_CAN_BE_REQUESTED = 18, "Credential available"
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EV_CREDENTIAL_REVOKED_BY_ADMIN = 19, "Credential revoked by admin"
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EV_CREDENTIAL_REVOKED = 20, "Credential revoked"
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EV_ROLE_CREATED_BY_ADMIN = 21, "Role created by admin"
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EV_ROLE_MODIFIED_BY_ADMIN = 22, "Role modified by admin"
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EV_ROLE_DELETED_BY_ADMIN = 23, "Role deleted by admin"
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EV_SERVICE_CREATED_BY_ADMIN = 24, "Service created by admin"
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EV_SERVICE_MODIFIED_BY_ADMIN = 25, "Service modified by admin"
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EV_SERVICE_DELETED_BY_ADMIN = 26, "Service deleted by admin"
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EV_ORG_DID_CREATED_BY_ADMIN = 27, "Organisational DID created by admin"
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EV_ORG_DID_DELETED_BY_ADMIN = 28, "Organisational DID deleted by admin"
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EV_USR_DEACTIVATED_BY_ADMIN = 29, "User deactivated"
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EV_USR_ACTIVATED_BY_ADMIN = 30, "User activated"
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created = models.DateTimeField(auto_now=True)
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message = models.CharField(max_length=350)
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type = models.PositiveSmallIntegerField(
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choices=Types.choices,
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)
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user = models.ForeignKey(
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User,
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on_delete=models.CASCADE,
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related_name='events',
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null=True,
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)
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def get_type_name(self):
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return self.Types(self.type).label
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@classmethod
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def set_EV_USR_REGISTERED(cls, user):
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msg = _("The user {username} was registered: name: {first_name}, last name: {last_name}").format(
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username=user.username,
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first_name=user.first_name,
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last_name=user.last_name
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)
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cls.objects.create(
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type=cls.Types.EV_USR_REGISTERED,
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message=msg
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)
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@classmethod
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def set_EV_USR_WELCOME(cls, user):
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msg = _("Welcome. You has been registered: name: {first_name}, last name: {last_name}").format(
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first_name=user.first_name,
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last_name=user.last_name
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)
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cls.objects.create(
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type=cls.Types.EV_USR_WELCOME,
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message=msg,
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user=user
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)
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# Is required?
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@classmethod
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def set_EV_DATA_UPDATE_REQUESTED_BY_USER(cls, user):
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msg = _("The user '{username}' has request the update of the following information: ")
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msg += "['field1':'value1', 'field2':'value2'>,...]".format(
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username=user.username,
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)
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cls.objects.create(
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type=cls.Types.EV_DATA_UPDATE_REQUESTED_BY_USER,
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message=msg,
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)
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# Is required?
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@classmethod
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def set_EV_DATA_UPDATE_REQUESTED(cls, user):
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msg = _("You have requested the update of the following information: ")
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msg += "['field1':'value1', 'field2':'value2'>,...]"
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cls.objects.create(
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type=cls.Types.EV_DATA_UPDATE_REQUESTED,
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message=msg,
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user=user
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)
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@classmethod
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def set_EV_USR_UPDATED_BY_ADMIN(cls, user):
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msg = "The admin has updated the following user 's information: "
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msg += "name: {first_name}, last name: {last_name}"
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msg = _(msg).format(
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first_name=user.first_name,
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last_name=user.last_name
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)
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cls.objects.create(
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type=cls.Types.EV_USR_UPDATED_BY_ADMIN,
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message=msg
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)
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@classmethod
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def set_EV_USR_UPDATED(cls, user):
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msg = "The admin has updated your personal information: "
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msg += "name: {first_name}, last name: {last_name}"
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msg = _(msg).format(
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first_name=user.first_name,
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last_name=user.last_name
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)
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cls.objects.create(
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type=cls.Types.EV_USR_UPDATED,
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message=msg,
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user=user
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)
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@classmethod
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def set_EV_USR_DELETED_BY_ADMIN(cls, user):
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msg = _("The admin has deleted the user: username: {username}").format(
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username=user.username,
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)
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cls.objects.create(
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type=cls.Types.EV_USR_DELETED_BY_ADMIN,
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message=msg
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)
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@classmethod
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def set_EV_DID_CREATED_BY_USER(cls, did):
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msg = _("New DID with DID-ID: '{did}' created by user '{username}'").format(
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did=did.did,
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username=did.user.username
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)
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cls.objects.create(
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type=cls.Types.EV_DID_CREATED_BY_USER,
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message=msg,
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)
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@classmethod
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def set_EV_DID_CREATED(cls, did):
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msg = _("New DID with label: '{label}' and DID-ID: '{did}' was created'").format(
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label=did.label,
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did=did.did
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)
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cls.objects.create(
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type=cls.Types.EV_DID_CREATED,
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message=msg,
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user=did.user
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)
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@classmethod
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def set_EV_DID_DELETED(cls, did):
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msg = _("The DID with label '{label}' and DID-ID: '{did}' was deleted from your wallet").format(
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label=did.label,
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did=did.did
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)
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cls.objects.create(
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type=cls.Types.EV_DID_DELETED,
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message=msg,
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user=did.user
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)
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@classmethod
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def set_EV_CREDENTIAL_DELETED_BY_ADMIN(cls, cred):
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msg = _("The credential of type '{type}' and ID: '{id}' was deleted").format(
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type=cred.type(),
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id=cred.id,
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)
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cls.objects.create(
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type=cls.Types.EV_CREDENTIAL_DELETED_BY_ADMIN,
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message=msg,
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)
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@classmethod
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def set_EV_CREDENTIAL_DELETED(cls, cred):
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msg = _("The credential of type '{type}' and ID: '{id}' was deleted from your wallet").format(
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type=cred.type(),
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id=cred.id
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)
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cls.objects.create(
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type=cls.Types.EV_CREDENTIAL_DELETED,
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message=msg,
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user=cred.user
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)
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@classmethod
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def set_EV_CREDENTIAL_ISSUED_FOR_USER(cls, cred):
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msg = _("The credential of type '{type}' and ID: '{id}' was issued for user {username}").format(
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type=cred.type(),
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id=cred.id,
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username=cred.user.username
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)
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cls.objects.create(
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type=cls.Types.EV_CREDENTIAL_ISSUED_FOR_USER,
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message=msg,
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)
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@classmethod
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def set_EV_CREDENTIAL_ISSUED(cls, cred):
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msg = _("The credential of type '{type}' and ID: '{id}' was issued and stored in your wallet").format(
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type=cred.type(),
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id=cred.id
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)
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cls.objects.create(
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type=cls.Types.EV_CREDENTIAL_ISSUED,
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message=msg,
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user=cred.user
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)
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@classmethod
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def set_EV_CREDENTIAL_PRESENTED_BY_USER(cls, cred, verifier):
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msg = "The credential of type '{type}' and ID: '{id}' "
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msg += "was presented by user {username} to verifier '{verifier}"
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msg = _(msg).format(
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type=cred.type(),
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id=cred.id,
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username=cred.user.username,
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verifier=verifier
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)
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cls.objects.create(
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type=cls.Types.EV_CREDENTIAL_PRESENTED_BY_USER,
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message=msg,
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)
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@classmethod
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def set_EV_CREDENTIAL_PRESENTED(cls, cred, verifier):
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msg = "The credential of type '{type}' and ID: '{id}' "
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msg += "was presented to verifier '{verifier}'"
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msg = _(msg).format(
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type=cred.type(),
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id=cred.id,
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verifier=verifier
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)
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cls.objects.create(
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type=cls.Types.EV_CREDENTIAL_PRESENTED,
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message=msg,
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user=cred.user
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)
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@classmethod
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def set_EV_CREDENTIAL_ENABLED(cls, cred):
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msg = _("The credential of type '{type}' was enabled for user {username}").format(
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type=cred.type(),
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username=cred.user.username
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)
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cls.objects.create(
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type=cls.Types.EV_CREDENTIAL_ENABLED,
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message=msg,
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)
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@classmethod
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def set_EV_CREDENTIAL_CAN_BE_REQUESTED(cls, cred):
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msg = _("You can request the '{type}' credential").format(
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type=cred.type()
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)
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cls.objects.create(
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type=cls.Types.EV_CREDENTIAL_CAN_BE_REQUESTED,
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message=msg,
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user=cred.user
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)
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@classmethod
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def set_EV_CREDENTIAL_REVOKED_BY_ADMIN(cls, cred):
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msg = _("The credential of type '{type}' and ID: '{id}' was revoked for ").format(
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type=cred.type(),
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id=cred.id
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)
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cls.objects.create(
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type=cls.Types.EV_CREDENTIAL_REVOKED_BY_ADMIN,
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message=msg,
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)
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@classmethod
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def set_EV_CREDENTIAL_REVOKED(cls, cred):
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msg = _("The credential of type '{type}' and ID: '{id}' was revoked by admin").format(
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type=cred.type(),
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id=cred.id
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)
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cls.objects.create(
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type=cls.Types.EV_CREDENTIAL_REVOKED,
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message=msg,
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user=cred.user
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)
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@classmethod
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def set_EV_ROLE_CREATED_BY_ADMIN(cls):
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msg = _('A new role was created by admin')
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cls.objects.create(
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type=cls.Types.EV_ROLE_CREATED_BY_ADMIN,
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message=msg,
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)
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@classmethod
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def set_EV_ROLE_MODIFIED_BY_ADMIN(cls):
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msg = _('The role was modified by admin')
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cls.objects.create(
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type=cls.Types.EV_ROLE_MODIFIED_BY_ADMIN,
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message=msg,
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)
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@classmethod
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def set_EV_ROLE_DELETED_BY_ADMIN(cls):
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msg = _('The role was removed by admin')
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cls.objects.create(
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type=cls.Types.EV_ROLE_DELETED_BY_ADMIN,
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message=msg,
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)
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@classmethod
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def set_EV_SERVICE_CREATED_BY_ADMIN(cls):
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msg = _('A new service was created by admin')
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cls.objects.create(
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type=cls.Types.EV_SERVICE_CREATED_BY_ADMIN,
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message=msg,
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)
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@classmethod
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def set_EV_SERVICE_MODIFIED_BY_ADMIN(cls):
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msg = _('The service was modified by admin')
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cls.objects.create(
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type=cls.Types.EV_SERVICE_MODIFIED_BY_ADMIN,
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message=msg,
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)
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@classmethod
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def set_EV_SERVICE_DELETED_BY_ADMIN(cls):
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msg = _('The service was removed by admin')
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cls.objects.create(
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type=cls.Types.EV_SERVICE_DELETED_BY_ADMIN,
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message=msg,
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)
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@classmethod
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def set_EV_ORG_DID_CREATED_BY_ADMIN(cls, did):
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msg = _("New Organisational DID with label: '{label}' and DID-ID: '{did}' was created").format(
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label=did.label,
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did=did.did
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)
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cls.objects.create(
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type=cls.Types.EV_ORG_DID_CREATED_BY_ADMIN,
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message=msg,
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)
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@classmethod
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def set_EV_ORG_DID_DELETED_BY_ADMIN(cls, did):
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msg = _("Organisational DID with label: '{label}' and DID-ID: '{did}' was removed").format(
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label=did.label,
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did=did.did
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)
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cls.objects.create(
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type=cls.Types.EV_ORG_DID_DELETED_BY_ADMIN,
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message=msg,
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)
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@classmethod
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def set_EV_USR_DEACTIVATED_BY_ADMIN(cls, user):
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msg = "The user '{username}' was temporarily deactivated: "
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msg += "[name:'{first_name}', last name:'{last_name}']"
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msg = _(msg).format(
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username=user.username,
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first_name=user.first_name,
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last_name=user.last_name
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)
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cls.objects.create(
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type=cls.Types.EV_USR_DEACTIVATED_BY_ADMIN,
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message=msg,
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)
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@classmethod
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def set_EV_USR_ACTIVATED_BY_ADMIN(cls, user):
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msg = "The user '{username}' was activated: "
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msg += "name:'{first_name}', last name:'{last_name}']"
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msg = _(msg).format(
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username=user.username,
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first_name=user.first_name,
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last_name=user.last_name
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)
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cls.objects.create(
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type=cls.Types.EV_USR_ACTIVATED_BY_ADMIN,
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message=msg,
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)
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class DID(models.Model):
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created_at = models.DateTimeField(auto_now=True)
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label = models.CharField(max_length=50)
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did = models.CharField(max_length=250)
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# In JWK format. Must be stored as-is and passed whole to library functions.
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# Example key material:
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# '{"kty":"OKP","crv":"Ed25519","x":"oB2cPGFx5FX4dtS1Rtep8ac6B__61HAP_RtSzJdPxqs","d":"OJw80T1CtcqV0hUcZdcI-vYNBN1dlubrLaJa0_se_gU"}'
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# CHANGED: `key_material` to `_key_material`, datatype from CharField to BinaryField and the key is now stored encrypted.
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key_material = None
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_key_material = models.BinaryField(max_length=250)
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user = models.ForeignKey(
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User,
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on_delete=models.CASCADE,
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related_name='dids',
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null=True,
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)
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def get_key_material(self):
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key_dids = cache.get("KEY_DIDS", {})
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if not key_dids.get(user.id):
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raise Exception("Ojo! Se intenta acceder a datos cifrados sin tener la clave.")
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sb = secret.SecretBox(key_dids[user.id])
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return sb.decrypt(self._key_material)
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def set_key_material(self, value):
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key_dids = cache.get("KEY_DIDS", {})
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if not key_dids.get(user.id):
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raise Exception("Ojo! Se intenta acceder a datos cifrados sin tener la clave.")
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sb = secret.SecretBox(key_dids[user.id])
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self._key_material = sb.encrypt(value)
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@property
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def is_organization_did(self):
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if not self.user:
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return True
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return False
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def set_did(self):
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"""
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Generates a new DID Controller Key and derives a DID from it.
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Because DID Controller Keys are stored encrypted using a User's Sensitive Data Encryption Key,
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this function needs to be called in the context of a request.
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"""
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new_key_material = generate_did_controller_key()
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self.did = keydid_from_controller_key(new_key_material)
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self.set_key_material(new_key_material)
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# TODO: darmengo: esta funcion solo se llama desde un fichero que sube cosas a s3 (??) Preguntar a ver que hace.
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def get_key_deprecated(self):
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return json.loads(self.key_material)
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class Schemas(models.Model):
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file_schema = models.CharField(max_length=250)
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data = models.TextField()
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created_at = models.DateTimeField(auto_now=True)
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@property
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def get_schema(self):
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if not self.data:
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return {}
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return json.loads(self.data)
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def name(self):
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return self.get_schema.get('name', '')
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def description(self):
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return self.get_schema.get('description', '')
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|
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class VerificableCredential(models.Model):
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"""
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Definition of Verificable Credentials
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"""
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class Status(models.IntegerChoices):
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ENABLED = 1, _("Enabled")
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ISSUED = 2, _("Issued")
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REVOKED = 3, _("Revoked")
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EXPIRED = 4, _("Expired")
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|
|
|
id_string = models.CharField(max_length=250)
|
|
verified = models.BooleanField()
|
|
created_on = models.DateTimeField(auto_now=True)
|
|
issued_on = models.DateTimeField(null=True)
|
|
subject_did = models.CharField(max_length=250)
|
|
# CHANGED: `data` to `_data`, datatype from TextField to BinaryField and the rendered VC is now stored encrypted.
|
|
# TODO: verify that BinaryField can hold arbitrary amounts of data (max_length = ???)
|
|
data = None
|
|
_data = models.BinaryField()
|
|
csv_data = models.TextField()
|
|
status = models.PositiveSmallIntegerField(
|
|
choices=Status.choices,
|
|
default=Status.ENABLED
|
|
)
|
|
user = models.ForeignKey(
|
|
User,
|
|
on_delete=models.CASCADE,
|
|
related_name='vcredentials',
|
|
)
|
|
issuer_did = models.ForeignKey(
|
|
DID,
|
|
on_delete=models.CASCADE,
|
|
related_name='vcredentials',
|
|
)
|
|
schema = models.ForeignKey(
|
|
Schemas,
|
|
on_delete=models.CASCADE,
|
|
related_name='vcredentials',
|
|
)
|
|
|
|
def get_data(self):
|
|
key_dids = cache.get("KEY_DIDS", {})
|
|
if not key_dids.get(user.id):
|
|
raise Exception("Ojo! Se intenta acceder a datos cifrados sin tener la clave.")
|
|
sb = secret.SecretBox(key_dids[user.id])
|
|
return sb.decrypt(self._data)
|
|
|
|
def set_data(self, value):
|
|
key_dids = cache.get("KEY_DIDS", {})
|
|
if not key_dids.get(user.id):
|
|
raise Exception("Ojo! Se intenta acceder a datos cifrados sin tener la clave.")
|
|
sb = secret.SecretBox(key_dids[user.id])
|
|
self._data = sb.encrypt(value)
|
|
|
|
@property
|
|
def get_schema(self):
|
|
if not self.data:
|
|
return {}
|
|
return json.loads(self.data)
|
|
|
|
def type(self):
|
|
if self.data:
|
|
return self.get_schema.get('type')[-1]
|
|
|
|
return self.schema.name()
|
|
|
|
def description(self):
|
|
if not self.data:
|
|
return self.schema.description()
|
|
|
|
for des in self.get_schema.get('description', []):
|
|
if settings.LANGUAGE_CODE == des.get('lang'):
|
|
return des.get('value', '')
|
|
return ''
|
|
|
|
def get_status(self):
|
|
return self.Status(self.status).label
|
|
|
|
def get_datas(self):
|
|
data = json.loads(self.csv_data).items()
|
|
return data
|
|
|
|
def issue(self, did):
|
|
if self.status == self.Status.ISSUED:
|
|
return
|
|
|
|
self.status = self.Status.ISSUED
|
|
self.subject_did = did
|
|
self.issued_on = datetime.datetime.now().astimezone(pytz.utc)
|
|
self.data = sign_credential(
|
|
self.render(),
|
|
self.issuer_did.get_key_material()
|
|
)
|
|
|
|
def get_context(self):
|
|
d = json.loads(self.csv_data)
|
|
format = "%Y-%m-%dT%H:%M:%SZ"
|
|
issuance_date = self.issued_on.strftime(format)
|
|
|
|
context = {
|
|
'vc_id': self.id,
|
|
'issuer_did': self.issuer_did.did,
|
|
'subject_did': self.subject_did,
|
|
'issuance_date': issuance_date,
|
|
'first_name': self.user.first_name,
|
|
'last_name': self.user.last_name,
|
|
}
|
|
context.update(d)
|
|
return context
|
|
|
|
def render(self):
|
|
context = self.get_context()
|
|
template_name = 'credentials/{}'.format(
|
|
self.schema.file_schema
|
|
)
|
|
tmpl = get_template(template_name)
|
|
return tmpl.render(context)
|
|
|
|
|
|
def get_issued_on(self):
|
|
if self.issued_on:
|
|
return self.issued_on.strftime("%m/%d/%Y")
|
|
|
|
return ''
|
|
|
|
class VCTemplate(models.Model):
|
|
wkit_template_id = models.CharField(max_length=250)
|
|
data = models.TextField()
|
|
|
|
|
|
class File_datas(models.Model):
|
|
file_name = models.CharField(max_length=250)
|
|
success = models.BooleanField(default=True)
|
|
created_at = models.DateTimeField(auto_now=True)
|
|
|
|
|
|
class Membership(models.Model):
|
|
"""
|
|
This model represent the relation of this user with the ecosystem.
|
|
"""
|
|
class Types(models.IntegerChoices):
|
|
BENEFICIARY = 1, _('Beneficiary')
|
|
EMPLOYEE = 2, _('Employee')
|
|
MEMBER = 3, _('Member')
|
|
|
|
type = models.PositiveSmallIntegerField(_('Type of membership'), choices=Types.choices)
|
|
start_date = models.DateField(
|
|
_('Start date'),
|
|
help_text=_('What date did the membership start?'),
|
|
blank=True,
|
|
null=True
|
|
)
|
|
end_date = models.DateField(
|
|
_('End date'),
|
|
help_text=_('What date will the membership end?'),
|
|
blank=True,
|
|
null=True
|
|
)
|
|
|
|
user = models.ForeignKey(
|
|
User,
|
|
on_delete=models.CASCADE,
|
|
related_name='memberships',
|
|
)
|
|
|
|
def get_type(self):
|
|
return dict(self.Types.choices).get(self.type)
|
|
|
|
|
|
class Rol(models.Model):
|
|
name = models.CharField(_("name"), max_length=250)
|
|
description = models.CharField(_("Description"), max_length=250, null=True)
|
|
|
|
def __str__(self):
|
|
return self.name
|
|
|
|
|
|
class Service(models.Model):
|
|
domain = models.CharField(_("Domain"), max_length=250)
|
|
description = models.CharField(_("Description"), max_length=250)
|
|
rol = models.ManyToManyField(
|
|
Rol,
|
|
)
|
|
|
|
def get_roles(self):
|
|
if self.rol.exists():
|
|
return ", ".join([x.name for x in self.rol.all()])
|
|
return _("None")
|
|
|
|
def __str__(self):
|
|
return "{} -> {}".format(self.domain, self.get_roles())
|
|
|
|
|
|
class UserRol(models.Model):
|
|
user = models.ForeignKey(
|
|
User,
|
|
on_delete=models.CASCADE,
|
|
related_name='roles',
|
|
)
|
|
service = models.ForeignKey(
|
|
Service,
|
|
on_delete=models.CASCADE,
|
|
related_name='users',
|
|
)
|
|
|
|
class Meta:
|
|
unique_together = ('user', 'service',)
|
|
|
|
|
|
class Organization(models.Model):
|
|
name = models.CharField(max_length=250)
|
|
url = models.CharField(
|
|
help_text=_("Url where to send the presentation"),
|
|
max_length=250
|
|
)
|
|
|
|
def __str__(self):
|
|
return self.name
|
|
|
|
def send(self, cred):
|
|
return
|
|
requests.post(self.url, data=cred.data)
|