The Big Refactor

Closes #3.
Closes #5.
Closes #7.
Closes #4.
Closes #2.

keycloak_collective_portal/routes/oidc.py

@@ -0,0 +1,53 @@
+"""OpenID Connect routes."""
+
+import httpx
+from fastapi import APIRouter, Depends, Request
+from fastapi.responses import HTMLResponse, RedirectResponse
+
+from keycloak_collective_portal.dependencies import logged_in
+
+router = APIRouter()
+
+
+@router.get("/login")
+async def login(request: Request):
+    return request.app.state.templates.TemplateResponse(
+        "login.html", context={"request": request}
+    )
+
+
+@router.get("/login/keycloak")
+async def login_keycloak(request: Request):
+    redirect_uri = request.url_for("auth_keycloak")
+    return await request.app.state.oidc.keycloak.authorize_redirect(
+        request, redirect_uri
+    )
+
+
+@router.get("/auth/keycloak")
+async def auth_keycloak(request: Request):
+    try:
+        token = await request.app.state.oidc.keycloak.authorize_access_token(
+            request
+        )
+    except Exception as exc:
+        return HTMLResponse(f"<p>{exc} (<a href='/'>home</a>)</p>")
+
+    user = await request.app.state.oidc.keycloak.parse_id_token(request, token)
+    request.session["user"] = dict(user)
+
+    return RedirectResponse(request.url_for("home"))
+
+
+@router.get("/logout", dependencies=[Depends(logged_in)])
+async def logout(request: Request):
+    from keycloak_collective_portal.config import KEYCLOAK_BASE_URL
+
+    try:
+        httpx.get(f"{KEYCLOAK_BASE_URL}/logout")
+    except Exception as exc:
+        return HTMLResponse(f"<p>{exc} (<a href='/'>home</a>)</p>")
+
+    request.session.pop("user", None)
+
+    return RedirectResponse(request.url_for("login"))