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-rw-r--r--users/models/__init__.py1
-rw-r--r--users/models/follow.py23
-rw-r--r--users/models/identity.py150
-rw-r--r--users/models/user.py6
4 files changed, 174 insertions, 6 deletions
diff --git a/users/models/__init__.py b/users/models/__init__.py
index 7032a81..ce69d1d 100644
--- a/users/models/__init__.py
+++ b/users/models/__init__.py
@@ -1,3 +1,4 @@
+from .follow import Follow # noqa
from .identity import Identity # noqa
from .user import User # noqa
from .user_event import UserEvent # noqa
diff --git a/users/models/follow.py b/users/models/follow.py
new file mode 100644
index 0000000..e134f28
--- /dev/null
+++ b/users/models/follow.py
@@ -0,0 +1,23 @@
+from django.db import models
+
+
+class Follow(models.Model):
+ """
+ Tracks major events that happen to users
+ """
+
+ source = models.ForeignKey(
+ "users.Identity",
+ on_delete=models.CASCADE,
+ related_name="outbound_follows",
+ )
+ target = models.ForeignKey(
+ "users.Identity",
+ on_delete=models.CASCADE,
+ related_name="inbound_follows",
+ )
+
+ note = models.TextField(blank=True, null=True)
+
+ created = models.DateTimeField(auto_now_add=True)
+ updated = models.DateTimeField(auto_now=True)
diff --git a/users/models/identity.py b/users/models/identity.py
index 495b4a4..c20ef60 100644
--- a/users/models/identity.py
+++ b/users/models/identity.py
@@ -2,12 +2,17 @@ import base64
import uuid
from functools import partial
+import httpx
import urlman
-from cryptography.hazmat.primitives import serialization
-from cryptography.hazmat.primitives.asymmetric import rsa
+from asgiref.sync import sync_to_async
+from cryptography.hazmat.primitives import hashes, serialization
+from cryptography.hazmat.primitives.asymmetric import padding, rsa
from django.conf import settings
from django.db import models
from django.utils import timezone
+from django.utils.http import http_date
+
+from core.ld import LDDocument
def upload_namer(prefix, instance, filename):
@@ -27,20 +32,31 @@ class Identity(models.Model):
# 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)
+ summary = models.TextField(blank=True, null=True)
+
+ actor_uri = models.CharField(max_length=500, blank=True, null=True)
+ profile_uri = models.CharField(max_length=500, blank=True, null=True)
+ inbox_uri = models.CharField(max_length=500, blank=True, null=True)
+ outbox_uri = models.CharField(max_length=500, blank=True, null=True)
+ icon_uri = models.CharField(max_length=500, blank=True, null=True)
+ image_uri = models.CharField(max_length=500, 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")
+ icon = models.ImageField(
+ upload_to=partial(upload_namer, "profile_images"), blank=True, null=True
+ )
+ image = models.ImageField(
+ upload_to=partial(upload_namer, "background_images"), blank=True, null=True
)
local = models.BooleanField()
users = models.ManyToManyField("users.User", related_name="identities")
+ manually_approves_followers = models.BooleanField(blank=True, null=True)
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)
+ fetched = models.DateTimeField(null=True, blank=True)
deleted = models.DateTimeField(null=True, blank=True)
@property
@@ -69,6 +85,128 @@ class Identity(models.Model):
)
self.save()
+ async def fetch_details(self):
+ if self.local:
+ raise ValueError("Cannot fetch local identities")
+ self.actor_uri = None
+ self.inbox_uri = None
+ self.profile_uri = None
+ # Go knock on webfinger and see what their address is
+ await self.fetch_webfinger()
+ # Fetch actor JSON
+ if self.actor_uri:
+ await self.fetch_actor()
+ self.fetched = timezone.now()
+ await sync_to_async(self.save)()
+
+ async def fetch_webfinger(self) -> bool:
+ async with httpx.AsyncClient() as client:
+ response = await client.get(
+ f"https://{self.domain}/.well-known/webfinger?resource=acct:{self.handle}",
+ headers={"Accept": "application/json"},
+ )
+ if response.status_code >= 400:
+ return False
+ data = response.json()
+ for link in data["links"]:
+ if (
+ link.get("type") == "application/activity+json"
+ and link.get("rel") == "self"
+ ):
+ self.actor_uri = link["href"]
+ elif (
+ link.get("type") == "text/html"
+ and link.get("rel") == "http://webfinger.net/rel/profile-page"
+ ):
+ self.profile_uri = link["href"]
+ return True
+
+ async def fetch_actor(self) -> bool:
+ async with httpx.AsyncClient() as client:
+ response = await client.get(
+ self.actor_uri,
+ headers={"Accept": "application/json"},
+ )
+ if response.status_code >= 400:
+ return False
+ data = response.json()
+ document = LDDocument(data)
+ for person in document.by_type(
+ "https://www.w3.org/ns/activitystreams#Person"
+ ):
+ self.name = person.get("https://www.w3.org/ns/activitystreams#name")
+ self.summary = person.get(
+ "https://www.w3.org/ns/activitystreams#summary"
+ )
+ self.inbox_uri = person.get("http://www.w3.org/ns/ldp#inbox")
+ self.outbox_uri = person.get(
+ "https://www.w3.org/ns/activitystreams#outbox"
+ )
+ self.manually_approves_followers = person.get(
+ "https://www.w3.org/ns/activitystreams#manuallyApprovesFollowers'"
+ )
+ self.private_key = person.get(
+ "https://w3id.org/security#publicKey"
+ ).get("https://w3id.org/security#publicKeyPem")
+ icon = person.get("https://www.w3.org/ns/activitystreams#icon")
+ if icon:
+ self.icon_uri = icon.get(
+ "https://www.w3.org/ns/activitystreams#url"
+ )
+ image = person.get("https://www.w3.org/ns/activitystreams#image")
+ if image:
+ self.image_uri = image.get(
+ "https://www.w3.org/ns/activitystreams#url"
+ )
+ return True
+
+ async def signed_request(self, host, method, path, document):
+ """
+ Delivers the document to the specified host, method, path and signed
+ as this user.
+ """
+ private_key = serialization.load_pem_private_key(
+ self.private_key,
+ password=None,
+ )
+ date_string = http_date(timezone.now().timestamp())
+ headers = {
+ "(request-target)": f"{method} {path}",
+ "Host": host,
+ "Date": date_string,
+ }
+ headers_string = " ".join(headers.keys())
+ signed_string = "\n".join(f"{name}: {value}" for name, value in headers.items())
+ signature = base64.b64encode(
+ private_key.sign(
+ signed_string,
+ padding.PSS(
+ mgf=padding.MGF1(hashes.SHA256()),
+ salt_length=padding.PSS.MAX_LENGTH,
+ ),
+ hashes.SHA256(),
+ )
+ )
+ del headers["(request-target)"]
+ headers[
+ "Signature"
+ ] = f'keyId="https://{settings.DEFAULT_DOMAIN}{self.urls.actor}",headers="{headers_string}",signature="{signature}"'
+ async with httpx.AsyncClient() as client:
+ return await client.request(
+ method,
+ "https://{host}{path}",
+ headers=headers,
+ data=document,
+ )
+
+ def validate_signature(self, request):
+ """
+ Attempts to validate the signature on an incoming request.
+ Returns False if the signature is invalid, None if it cannot be verified
+ as we do not have the key locally, or the name of the actor if it is valid.
+ """
+ pass
+
def __str__(self):
return self.name or self.handle
diff --git a/users/models/user.py b/users/models/user.py
index de51380..6435bf5 100644
--- a/users/models/user.py
+++ b/users/models/user.py
@@ -56,3 +56,9 @@ class User(AbstractBaseUser):
@property
def is_staff(self):
return self.admin
+
+ def has_module_perms(self, module):
+ return self.admin
+
+ def has_perm(self, perm):
+ return self.admin
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 20:22:33 +0000