修复前端

manual_trading_hub/hub.py

@@ -182,6 +182,46 @@ async def _fetch_agent_status(client: httpx.AsyncClient, ex: dict) -> dict:
         }
 
 
+def _exchange_brief(ex: dict | None) -> dict | None:
+    if not ex:
+        return None
+    return {
+        "id": ex.get("id"),
+        "key": ex.get("key"),
+        "name": ex.get("name"),
+    }
+
+
+def _form_plain_dict(form) -> dict[str, str]:
+    out: dict[str, str] = {}
+    for k, v in form.multi_items() if hasattr(form, "multi_items") else form.items():
+        if hasattr(v, "read"):
+            continue
+        out[str(k)] = "" if v is None else str(v)
+    return out
+
+
+def _parse_http_json_body(r: httpx.Response) -> dict:
+    text = (r.text or "").strip()
+    if not text:
+        return {"ok": False, "status": r.status_code, "text": "(empty body)"}
+    try:
+        data = r.json()
+        if isinstance(data, dict):
+            return data
+        return {"ok": False, "status": r.status_code, "text": text[:500]}
+    except Exception:
+        snippet = text[:500]
+        if snippet.lstrip().lower().startswith("<!") or "internal server error" in snippet.lower():
+            return {
+                "ok": False,
+                "status": r.status_code,
+                "messages": [f"实例返回 HTML 错误（HTTP {r.status_code}），请查看该 Flask 日志"],
+                "text": snippet,
+            }
+        return {"ok": False, "status": r.status_code, "messages": [snippet], "text": snippet}
+
+
 async def _fetch_flask_json(
     client: httpx.AsyncClient, ex: dict, path: str, method: str = "GET", data=None
 ) -> dict | None:
@@ -194,8 +234,11 @@ async def _fetch_flask_json(
         else:
             r = await client.post(f"{base}{path}", headers=_hub_headers(), data=data, timeout=120.0)
         if r.status_code >= 400:
-            return {"ok": False, "status": r.status_code, "text": (r.text or "")[:500]}
-        return r.json()
+            parsed = _parse_http_json_body(r)
+            parsed.setdefault("ok", False)
+            parsed.setdefault("status", r.status_code)
+            return parsed
+        return _parse_http_json_body(r)
     except Exception as e:
         return {"ok": False, "error": str(e)}
 
@@ -308,10 +351,18 @@ async def api_trade_order(exchange_id: str, request: Request):
     ex = _find_exchange(exchange_id)
     if not ex or not ex.get("enabled"):
         raise HTTPException(status_code=404, detail="账户未启用")
-    form = await request.form()
-    async with httpx.AsyncClient() as client:
-        result = await _fetch_flask_json(client, ex, "/api/hub/add_order", "POST", dict(form))
-    return {"exchange": ex, "result": result}
+    try:
+        form = _form_plain_dict(await request.form())
+        async with httpx.AsyncClient() as client:
+            result = await _fetch_flask_json(client, ex, "/api/hub/add_order", "POST", form)
+        return {"exchange": _exchange_brief(ex), "result": result}
+    except HTTPException:
+        raise
+    except Exception as e:
+        return JSONResponse(
+            {"exchange": _exchange_brief(ex), "result": {"ok": False, "messages": [str(e)]}},
+            status_code=200,
+        )
 
 
 @app.post("/api/trade/key/{exchange_id}")
@@ -321,10 +372,18 @@ async def api_trade_key(exchange_id: str, request: Request):
         raise HTTPException(status_code=404, detail="账户未启用")
     if "key" not in (ex.get("capabilities") or []):
         raise HTTPException(status_code=400, detail="该账户不支持关键位")
-    form = await request.form()
-    async with httpx.AsyncClient() as client:
-        result = await _fetch_flask_json(client, ex, "/api/hub/add_key", "POST", dict(form))
-    return {"exchange": ex, "result": result}
+    try:
+        form = _form_plain_dict(await request.form())
+        async with httpx.AsyncClient() as client:
+            result = await _fetch_flask_json(client, ex, "/api/hub/add_key", "POST", form)
+        return {"exchange": _exchange_brief(ex), "result": result}
+    except HTTPException:
+        raise
+    except Exception as e:
+        return JSONResponse(
+            {"exchange": _exchange_brief(ex), "result": {"ok": False, "messages": [str(e)]}},
+            status_code=200,
+        )
 
 
 @app.post("/api/trade/trend/preview/{exchange_id}")

manual_trading_hub/static/app.js

@@ -294,15 +294,34 @@
     }
   }
 
+  async function parseJsonResponse(r) {
+    const text = await r.text();
+    if (!text) return {};
+    try {
+      return JSON.parse(text);
+    } catch (e) {
+      const snippet = text.slice(0, 200);
+      throw new Error(
+        `HTTP ${r.status} 响应不是 JSON：${snippet}${text.length > 200 ? "…" : ""}`
+      );
+    }
+  }
+
   async function submitForm(path, formEl) {
     const id = document.getElementById("trade-account").value;
     const fd = new FormData(formEl);
     try {
       const r = await fetch(path + encodeURIComponent(id), { method: "POST", body: fd });
-      const j = await r.json();
+      const j = await parseJsonResponse(r);
       const res = j.result || {};
-      const msgs = (res.messages || []).join("\n") || JSON.stringify(res, null, 2);
-      showToast(msgs, !res.ok);
+      const msgs =
+        (res.messages || []).join("\n") ||
+        res.error ||
+        res.msg ||
+        res.text ||
+        JSON.stringify(res, null, 2);
+      const failed = res.ok === false || r.status >= 400 || !!res.error || !!res.text;
+      showToast(msgs || (failed ? "操作失败" : "已提交"), failed);
       if (res.ok && res.preview) {
         showTrendPreview(res);
       }