From 01214a785959878f6d7dd835347819dbaa888ac1 Mon Sep 17 00:00:00 2001
From: Magnus Hagander
Date: Fri, 2 Jun 2023 10:37:42 -0500
Subject: Add support for digital signature providers

This adds a new type of provider to the system for handling digital
signatures.

Initially the only consumer is conference sponsorships, but it could be
added for other parts of the system as well in the future. Regular
"old-style" sponsorship contracts are still supported, but will gain the
feature to auto-fill sponsor name and VAT number if wanted. The sponsor
signup workflow is adjusted to support either one or both of the two
methods.

Initially the only implementation is Signwell, but the system is made
pluggable just like e.g. the payment providers, so other suppliers can
be added in the future.

This should be considered fairly beta at this point, as several parts of
it cannot be fully tested until a production account is in place. But
the basics are there...
---
 postgresqleu/digisign/models.py | 49 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 postgresqleu/digisign/models.py

(limited to 'postgresqleu/digisign/models.py')

diff --git a/postgresqleu/digisign/models.py b/postgresqleu/digisign/models.py
new file mode 100644
index 00000000..913f5460
--- /dev/null
+++ b/postgresqleu/digisign/models.py
@@ -0,0 +1,49 @@
+from django.db import models
+
+
+class DigisignProvider(models.Model):
+    name = models.CharField(max_length=100, null=False, blank=False, unique=True)
+    displayname = models.CharField(max_length=100, null=False, blank=False)
+    classname = models.CharField(max_length=200, null=False, blank=False, verbose_name="Implementation class")
+    active = models.BooleanField(null=False, blank=False, default=False)
+    config = models.JSONField(blank=False, null=False, default=dict)
+
+    def __str__(self):
+        return self.name
+
+    class Meta:
+        ordering = ('name', )
+
+    def get_implementation(self):
+        pieces = self.classname.split('.')
+        modname = '.'.join(pieces[:-1])
+        classname = pieces[-1]
+        mod = __import__(modname, fromlist=[classname, ])
+        return getattr(mod, classname)(self.id, self)
+
+
+class DigisignDocument(models.Model):
+    provider = models.ForeignKey(DigisignProvider, null=False, blank=False, on_delete=models.CASCADE)
+    documentid = models.CharField(max_length=100, null=False, blank=True)
+    handler = models.CharField(max_length=32, null=False, blank=True)
+    completed = models.BooleanField(null=False, blank=False, default=False)
+
+    class Meta:
+        unique_together = (
+            ('documentid', 'provider'),
+        )
+
+
+class DigisignLog(models.Model):
+    provider = models.ForeignKey(DigisignProvider, null=False, blank=False, on_delete=models.CASCADE)
+    document = models.ForeignKey(DigisignDocument, null=True, blank=True, on_delete=models.CASCADE)
+    time = models.DateTimeField(auto_now_add=True, db_index=True)
+    event = models.CharField(max_length=200, null=False, blank=False)
+    text = models.CharField(max_length=1000, null=False, blank=False)
+    fulldata = models.JSONField(null=False, blank=False, default=dict)
+
+    class Meta:
+        ordering = ('time', )
+        indexes = [
+            models.Index(fields=('document', '-time'))
+        ]
-- 
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