From d77dcf62b4005a0f36ef2fa7ba6d3651d2ef38d7 Mon Sep 17 00:00:00 2001
From: Andrew Godwin
Date: Sat, 5 Nov 2022 14:17:27 -0600
Subject: Initial commit (users and statuses)

---
 users/models/identity.py | 79 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 users/models/identity.py

(limited to 'users/models/identity.py')

diff --git a/users/models/identity.py b/users/models/identity.py
new file mode 100644
index 0000000..495b4a4
--- /dev/null
+++ b/users/models/identity.py
@@ -0,0 +1,79 @@
+import base64
+import uuid
+from functools import partial
+
+import urlman
+from cryptography.hazmat.primitives import serialization
+from cryptography.hazmat.primitives.asymmetric import rsa
+from django.conf import settings
+from django.db import models
+from django.utils import timezone
+
+
+def upload_namer(prefix, instance, filename):
+    """
+    Names uploaded images etc.
+    """
+    now = timezone.now()
+    filename = base64.b32encode(uuid.uuid4().bytes).decode("ascii")
+    return f"{prefix}/{now.year}/{now.month}/{now.day}/{filename}"
+
+
+class Identity(models.Model):
+    """
+    Represents both local and remote Fediverse identities (actors)
+    """
+
+    # The handle includes the domain!
+    handle = models.CharField(max_length=500, unique=True)
+    name = models.CharField(max_length=500, blank=True, null=True)
+    bio = models.TextField(blank=True, null=True)
+
+    profile_image = models.ImageField(upload_to=partial(upload_namer, "profile_images"))
+    background_image = models.ImageField(
+        upload_to=partial(upload_namer, "background_images")
+    )
+
+    local = models.BooleanField()
+    users = models.ManyToManyField("users.User", related_name="identities")
+    private_key = models.TextField(null=True, blank=True)
+    public_key = models.TextField(null=True, blank=True)
+
+    created = models.DateTimeField(auto_now_add=True)
+    updated = models.DateTimeField(auto_now=True)
+    deleted = models.DateTimeField(null=True, blank=True)
+
+    @property
+    def short_handle(self):
+        if self.handle.endswith("@" + settings.DEFAULT_DOMAIN):
+            return self.handle.split("@", 1)[0]
+        return self.handle
+
+    @property
+    def domain(self):
+        return self.handle.split("@", 1)[1]
+
+    def generate_keypair(self):
+        private_key = rsa.generate_private_key(
+            public_exponent=65537,
+            key_size=2048,
+        )
+        self.private_key = private_key.private_bytes(
+            encoding=serialization.Encoding.PEM,
+            format=serialization.PrivateFormat.PKCS8,
+            encryption_algorithm=serialization.NoEncryption(),
+        )
+        self.public_key = private_key.public_key().public_bytes(
+            encoding=serialization.Encoding.PEM,
+            format=serialization.PublicFormat.SubjectPublicKeyInfo,
+        )
+        self.save()
+
+    def __str__(self):
+        return self.name or self.handle
+
+    class urls(urlman.Urls):
+        view = "/@{self.short_handle}/"
+        actor = "{view}actor/"
+        inbox = "{actor}inbox/"
+        activate = "{view}activate/"
-- 
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