Add domain constraint validation

pyproject.toml

@@ -9,8 +9,12 @@ dependencies = [
     "pydantic",
     "pydantic-yaml",
 
+    # Web service
     "fastapi[standard]",
-    "sqlmodel"
+    "sqlmodel",
+
+    # XMPP
+    "slixmpp@git+https://codeberg.org/poezio/slixmpp"
 ]
 
 [project.optional-dependencies]
@@ -23,3 +27,6 @@ dev = [
 [build-system]
 requires = ["hatchling"]
 build-backend = "hatchling.build"
+
+[tool.hatch.metadata]
+allow-direct-references = true

src/xmpp_api/db/__init__.py

@@ -46,7 +46,7 @@ def get_by_token(
             status_code=400,
         )
 
-    obj = session.exec(select(cls).where(cls.token == token)).first()
+    obj = session.exec(select(cls).where(cls.token == token)).first()  # type: ignore
     if obj is None:
         raise HTTPException(
             detail="Unauthorized",

src/xmpp_api/db/bot.py

@@ -39,6 +39,7 @@ class BotDomainConstraint(BotConstraint):
     Constraints the bot to send messages only to the provided domains
     """
 
+    # List of domains that are allowed to send messages to
     domains: list[str]
 
 

src/xmpp_api/main.py

@@ -2,6 +2,7 @@ import uuid
 from fastapi import FastAPI, HTTPException, Request, Response
 import sqlalchemy
 from sqlmodel import SQLModel, select
+from slixmpp.jid import JID
 
 from xmpp_api.config.config import load_config
 from xmpp_api.api.bot import (
@@ -16,7 +17,7 @@ from xmpp_api.api.bot import (
     BotConstraint,
     BotDomainConstraint,
 )
-from xmpp_api.db import BotDep, SessionDep, UserDep, EngineDep, get_engine
+from xmpp_api.db import BotDep, SessionDep, UserDep, get_engine
 from xmpp_api.db.bot import AllowedJid, Bot, JIDType
 import xmpp_api.db.bot as db_bot
 from xmpp_api.util.token import generate_token
@@ -87,6 +88,16 @@ def post_create_bot_jid(
             detail="Unknown bot",
         )
 
+    # Validate the domain constraint
+    parsed_jid = JID(creation_request.jid)
+    for constraint in bot.constraints:
+        if isinstance(constraint, BotDomainConstraint):
+            if parsed_jid.domain not in constraint.domains:
+                raise HTTPException(
+                    status_code=400,
+                    detail=f'Domain "{parsed_jid.domain}" is not allowed',
+                )
+
     # Add the JID
     # TODO: Query for the JID type
     # TODO: If this is a groupchat, then join it
@@ -145,6 +156,13 @@ def post_bot_message(
             status_code=404,
         )
 
+    # Validate the domain constraint
+    parsed_jid = JID(jid.jid)
+    for constraint in bot.constraints:
+        if isinstance(constraint, BotDomainConstraint):
+            if parsed_jid.domain not in constraint.domains:
+                raise HTTPException(status_code=400)
+
     # TODO: Send a message
     return Response(status_code=200)
 

uv.lock

@@ -2,6 +2,18 @@ version = 1
 revision = 1
 requires-python = ">=3.13"
 
+[[package]]
+name = "aiodns"
+version = "3.2.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "pycares" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/e7/84/41a6a2765abc124563f5380e76b9b24118977729e25a84112f8dfb2b33dc/aiodns-3.2.0.tar.gz", hash = "sha256:62869b23409349c21b072883ec8998316b234c9a9e36675756e8e317e8768f72", size = 7823 }
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+]
+
 [[package]]
 name = "annotated-types"
 version = "0.7.0"
@@ -53,6 +65,28 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/38/fc/bce832fd4fd99766c04d1ee0eead6b0ec6486fb100ae5e74c1d91292b982/certifi-2025.1.31-py3-none-any.whl", hash = "sha256:ca78db4565a652026a4db2bcdf68f2fb589ea80d0be70e03929ed730746b84fe", size = 166393 },
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+version = "1.17.1"
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+dependencies = [
+    { name = "pycparser" },
+]
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+]
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 version = "8.1.8"
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+[[package]]
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+version = "0.4.2"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "pyasn1" },
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 name = "pydantic"
 version = "2.11.3"
@@ -512,6 +601,16 @@ wheels = [
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+[[package]]
+name = "slixmpp"
+version = "1.10.0"
+source = { git = "https://codeberg.org/poezio/slixmpp#09f792b4767eaa97be447c5d67cb403d9be5a96f" }
+dependencies = [
+    { name = "aiodns" },
+    { name = "pyasn1" },
+    { name = "pyasn1-modules" },
+]
+
 [[package]]
 name = "sniffio"
 version = "1.3.1"
@@ -692,6 +791,7 @@ dependencies = [
     { name = "fastapi", extra = ["standard"] },
     { name = "pydantic" },
     { name = "pydantic-yaml" },
+    { name = "slixmpp" },
     { name = "sqlmodel" },
 ]
 
@@ -710,6 +810,7 @@ requires-dist = [
     { name = "pydantic" },
     { name = "pydantic-yaml" },
     { name = "ruff", marker = "extra == 'dev'", specifier = ">=0.11.6" },
+    { name = "slixmpp", git = "https://codeberg.org/poezio/slixmpp" },
     { name = "sqlmodel" },
 ]
 provides-extras = ["dev"]