feat: add project fork async job service with cli prune/clear commands and shared container image build target

devplacepy/customization.py

@@ -0,0 +1,77 @@
+# retoor <retoor@molodetz.nl>
+
+from __future__ import annotations
+
+import json
+import logging
+
+from markupsafe import Markup
+from starlette.requests import Request
+
+from devplacepy.constants import DEVII_GUEST_COOKIE
+from devplacepy.database import get_custom_overrides, get_setting
+from devplacepy.utils import get_current_user
+
+logger = logging.getLogger("customization")
+
+EMPTY = Markup("")
+
+
+def page_type_for(request: Request) -> str:
+    route = request.scope.get("route")
+    path = getattr(route, "path", None)
+    if path:
+        return path
+    return request.url.path
+
+
+def owner_for(request: Request) -> tuple[str, str] | None:
+    user = get_current_user(request)
+    if user:
+        return "user", user["uid"]
+    guest = request.cookies.get(DEVII_GUEST_COOKIE)
+    if guest:
+        return "guest", guest
+    return None
+
+
+def _overrides_for(request: Request) -> dict:
+    if get_setting("customization_enabled", "1") != "1":
+        return {"css": "", "js": ""}
+    owner = owner_for(request)
+    if owner is None:
+        return {"css": "", "js": ""}
+    return get_custom_overrides(owner[0], owner[1], page_type_for(request))
+
+
+def custom_css_tag(request: Request) -> Markup:
+    try:
+        css = _overrides_for(request).get("css", "")
+        if not css.strip():
+            return EMPTY
+        safe = css.replace("</", "<\\/")
+        return Markup(f'<style id="user-custom-css">\n{safe}\n</style>')
+    except Exception as exc:  # noqa: BLE001 - a customization bug must never break page render
+        logger.warning("custom_css_tag failed: %s", exc)
+        return EMPTY
+
+
+def custom_js_tag(request: Request) -> Markup:
+    try:
+        if get_setting("customization_js_enabled", "1") != "1":
+            return EMPTY
+        code = _overrides_for(request).get("js", "")
+        if not code.strip():
+            return EMPTY
+        payload = json.dumps(code).replace("<", "\\u003c").replace(">", "\\u003e")
+        runner = (
+            f'<script type="application/json" id="user-custom-js-src">{payload}</script>'
+            '<script>(function(){try{'
+            'var src=document.getElementById("user-custom-js-src");'
+            'if(src){new Function(JSON.parse(src.textContent))();}'
+            '}catch(error){console.error("user custom js error",error);}})();</script>'
+        )
+        return Markup(runner)
+    except Exception as exc:  # noqa: BLE001 - a customization bug must never break page render
+        logger.warning("custom_js_tag failed: %s", exc)
+        return EMPTY