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2026-10-19 10:40:44 +00:00 · 2026-10-06 19:01:05 +08:00
commit b705216e4a
3195 changed files with 203292 additions and 0 deletions
@@ -0,0 +1,132 @@
+# -*- coding: utf-8 -*-
+"""分块累积：加总体积上限 + 顺序校验。
+
+`MAX_LINE_BYTES` 只管单行，累积体积没上限 —— 已配对设备可以一直发 chunk
+把内存吃干（最后 bytes() 还要再翻一倍）。而且原来按到达顺序直接拼，
+seq 算出来却从不校验，丢块/乱序会静默产出坏文件还回 ok:True。
+"""
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+PROTOCOL = Path(r"C:\Users\shu\Desktop\deepseekagent\LanRemote\windows"
+                r"\lanremote\protocol.py")
+SERVER = Path(r"C:\Users\shu\Desktop\deepseekagent\LanRemote\windows"
+              r"\lanremote\server.py")
+
+OLD = '''class ChunkAssembler:
+    """接收端：按 seq 收集分块，拼回完整数据。"""
+
+    def __init__(self):
+        self._buf = bytearray()
+        self._expected = 0
+
+    def feed(self, seq: int, is_last: bool, data: bytes) -> bytes | None:
+        """返回完整数据（当收到最后一块时），否则 None。"""
+        if seq == 0:
+            self._buf = bytearray()
+        self._buf.extend(data)
+        self._expected = seq + 1
+        if is_last:
+            result = bytes(self._buf)
+            self._buf = bytearray()
+            return result
+        return None'''
+
+NEW = '''class ChunkTooLarge(Exception):
+    """分块累积超过上限，或顺序不对。"""
+
+
+class ChunkAssembler:
+    """接收端：按 seq 收集分块，拼回完整数据。
+
+    MAX_LINE_BYTES 只管单行，累积体积必须另外设上限 ——
+    否则已配对设备可以一直发 chunk 把内存吃干（最后 bytes() 还要再翻一倍）。
+    """
+
+    def __init__(self, limit: int = MAX_TOTAL_BYTES):
+        self._buf = bytearray()
+        self._expected = 0
+        self._limit = int(limit)
+
+    def feed(self, seq: int, is_last: bool, data: bytes) -> bytes | None:
+        """返回完整数据（当收到最后一块时），否则 None。
+
+        顺序不对或超限时抛 ChunkTooLarge，不静默拼出坏文件。
+        """
+        if seq == 0:
+            self._buf = bytearray()
+            self._expected = 0
+        if seq != self._expected:
+            self._buf = bytearray()
+            self._expected = 0
+            raise ChunkTooLarge(
+                f"分块顺序不对（收到 {seq}，应为 {self._expected}）")
+        if len(self._buf) + len(data) > self._limit:
+            self._buf = bytearray()
+            self._expected = 0
+            raise ChunkTooLarge(f"文件超过上限（{self._limit // 1048576} MB）")
+        self._buf.extend(data)
+        self._expected = seq + 1
+        if is_last:
+            result = bytes(self._buf)
+            self._buf = bytearray()
+            self._expected = 0
+            return result
+        return None
+
+    def reset(self) -> None:
+        self._buf = bytearray()
+        self._expected = 0'''
+
+CONST_OLD = "CHUNK_SIZE = 256 * 1024"
+CONST_NEW = ("CHUNK_SIZE = 256 * 1024\n"
+             "# 单次传输（文件 / 图片 / 音频）的总体积上限\n"
+             "MAX_TOTAL_BYTES = 256 * 1024 * 1024")
+
+
+def main() -> int:
+    ok = True
+
+    text = PROTOCOL.read_text(encoding="utf-8")
+    if OLD not in text:
+        print("  [失败] protocol.py ChunkAssembler 锚点没找到")
+        ok = False
+    else:
+        text = text.replace(OLD, NEW, 1)
+        print("  protocol.py / ChunkAssembler: 加体积上限 + 顺序校验")
+    if CONST_OLD in text and "MAX_TOTAL_BYTES" not in text:
+        text = text.replace(CONST_OLD, CONST_NEW, 1)
+        print("  protocol.py / MAX_TOTAL_BYTES 常量: OK")
+    if ok:
+        PROTOCOL.write_text(text, encoding="utf-8")
+
+    # ---- server.py 要接住 ChunkTooLarge ----
+    stext = SERVER.read_text(encoding="utf-8")
+    old_feed = "            blob = assembler.feed(seq, last, data)"
+    new_feed = ("            try:\n"
+                "                blob = assembler.feed(seq, last, data)\n"
+                "            except P.ChunkTooLarge as exc:\n"
+                "                session.buffers.pop(cmd, None)\n"
+                "                raise ActionError(str(exc)) from exc")
+    if old_feed in stext:
+        stext = stext.replace(old_feed, new_feed, 1)
+        SERVER.write_text(stext, encoding="utf-8")
+        print("  server.py / 接住 ChunkTooLarge: OK")
+    else:
+        print("  [跳过] server.py assembler.feed 锚点没找到")
+
+    import ast
+    for label, path in (("protocol.py", PROTOCOL), ("server.py", SERVER)):
+        try:
+            ast.parse(path.read_text(encoding="utf-8"))
+            print(f"  {label}: 语法 OK")
+        except SyntaxError as exc:
+            print(f"  {label}: 语法错误 {exc}")
+            ok = False
+    return 0 if ok else 1
+
+
+if __name__ == "__main__":
+    sys.exit(main())