feat: redesign portal UX and stabilize web session runtime

kiosk/manager.py

@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+import json
+import urllib.parse
+import urllib.request
+from http.server import BaseHTTPRequestHandler, HTTPServer
+
+
+def _json_get(path: str):
+    with urllib.request.urlopen(f"http://127.0.0.1:9222{path}", timeout=2) as resp:
+        return json.loads(resp.read().decode("utf-8"))
+
+
+def _json_put(path: str):
+    req = urllib.request.Request(f"http://127.0.0.1:9222{path}", method="PUT")
+    with urllib.request.urlopen(req, timeout=2) as resp:
+        return json.loads(resp.read().decode("utf-8"))
+
+
+def chromium_open(url: str) -> None:
+    encoded = urllib.parse.quote(url, safe=':/?#[]@!$&\'()*+,;=%')
+    opened = _json_put(f"/json/new?{encoded}")
+    opened_id = opened.get("id")
+    # Keep exactly one active page tab to prevent tab/memory explosion in warm containers.
+    pages = _json_get("/json/list")
+    for page in pages:
+        page_id = page.get("id")
+        if page_id and page_id != opened_id:
+            try:
+                _json_put(f"/json/close/{page_id}")
+            except Exception:
+                pass
+
+
+class Handler(BaseHTTPRequestHandler):
+    def _json(self, code: int, payload: dict):
+        body = json.dumps(payload).encode("utf-8")
+        self.send_response(code)
+        self.send_header("Content-Type", "application/json")
+        self.send_header("Content-Length", str(len(body)))
+        self.end_headers()
+        self.wfile.write(body)
+
+    def do_GET(self):
+        if self.path == "/health":
+            self._json(200, {"ok": True})
+            return
+        self._json(404, {"detail": "Not found"})
+
+    def do_POST(self):
+        if self.path != "/open":
+            self._json(404, {"detail": "Not found"})
+            return
+        try:
+            length = int(self.headers.get("Content-Length", "0"))
+            raw = self.rfile.read(length)
+            data = json.loads(raw.decode("utf-8")) if raw else {}
+            url = (data.get("url") or "").strip()
+            if not url.startswith("http://") and not url.startswith("https://"):
+                self._json(400, {"detail": "Invalid URL"})
+                return
+            chromium_open(url)
+            print(f"open_ok url={url}", flush=True)
+            self._json(200, {"ok": True, "url": url})
+        except Exception as exc:
+            print(f"open_fail err={exc}", flush=True)
+            self._json(500, {"detail": str(exc)})
+
+    def log_message(self, format, *args):
+        return
+
+
+if __name__ == "__main__":
+    server = HTTPServer(("0.0.0.0", 7000), Handler)
+    server.serve_forever()