feat(back): add about.json

Co-authored-by: Ciznia <gabriel.hosquet@epitech.eu>

Author: Sigmanificient

back/app/routes/__init__.py

@@ -4,6 +4,7 @@
 
 routers = []
 providers = (
+    "about",
     "auth",
     "hello",
     "workflow",

back/app/routes/about.py

@@ -0,0 +1,33 @@
+from fastapi import APIRouter, Request
+from fastapi.responses import JSONResponse
+
+from .oauth_base import OAuthProvider
+import time
+
+router = APIRouter(prefix="")
+
+
+@router.get("/about.json")
+async def about_json(request: Request):
+    client = request.client
+    client_ip = client.host if client else "unknown"
+    services = OAuthProvider.services.keys()
+    return JSONResponse(
+        {
+            "client": {
+                "host": client_ip,
+            },
+            "server": {
+                "current_time": int(time.time()),
+                "services": [
+                    {
+                        "name": service_name,
+                        "actions": [
+                        ],
+                        "reactions": [
+                        ],
+                    } for service_name in services
+                ]
+            },
+        }
+    )