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109 lines
4.1 KiB
Python
109 lines
4.1 KiB
Python
# -*- coding: utf-8 -*-
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"""修 Json.java 的深度计数 bug —— 它让"功能页永远连不上"。
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我加 MAX_DEPTH 时只在 readObject/readArray 里做了 depth++，
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**没有对应的 depth--**。于是 depth 单调递增：
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一个回复里只要累计解析过 65 个对象（不是嵌套深度，是总数！）就抛
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"JSON 嵌套太深"。
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而 RemoteClient.readLoop 里对解析失败是 `continue`（静默丢弃），
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所以客户端等不到回复，一路超时到报"连不上电脑"。
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受影响的面：
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feature_list 152 个功能对象 -> 永远超时（用户报的"功能页连不上"）
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proc_list 200 个进程对象 -> 超时
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audio_list 音乐目录多文件 -> 超时
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voice_list / ping / info -> 对象少，正常
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修法：把真正的解析逻辑拆成 inner 方法，用 try/finally 保证进出配对。
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"""
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from __future__ import annotations
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import sys
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from pathlib import Path
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JSON = Path(r"C:\Users\shu\Desktop\deepseekagent\LanRemote\android\src"
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r"\com\lanremote\watch\Json.java")
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def main() -> int:
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text = JSON.read_text(encoding="utf-8")
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# ---- readObject：拆成 wrapper + inner ----
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old_obj = " private Map<String, Object> readObject() {"
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new_obj = ''' private Map<String, Object> readObject() {
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if (depth >= MAX_DEPTH) {
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throw new IllegalArgumentException("JSON 嵌套太深");
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}
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depth++;
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try {
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return readObjectInner();
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} finally {
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// 必须配对减去！只加不减会让计数器单调递增，
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// 于是"回复里有 65 个对象"就被误判成嵌套太深，
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// 而调用方会静默丢弃这条回复 -> 表现为"连不上电脑"。
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depth--;
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}
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}
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private Map<String, Object> readObjectInner() {'''
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if old_obj not in text:
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print(" [失败] 找不到 readObject")
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return 1
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text = text.replace(old_obj, new_obj, 1)
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print(" readObject: 已拆成 wrapper + inner")
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# readObjectInner 里那个 depth++ 要去掉（已经挪到 wrapper）
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marker = " pos++; // '{'\n depth++;\n"
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if marker in text:
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text = text.replace(marker,
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" pos++; // '{'\n", 1)
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print(" readObjectInner: 去掉多余的 depth++")
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# ---- readArray 同样处理 ----
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old_arr = " private List<Object> readArray() {"
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new_arr = ''' private List<Object> readArray() {
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if (depth >= MAX_DEPTH) {
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throw new IllegalArgumentException("JSON 嵌套太深");
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}
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depth++;
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try {
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return readArrayInner();
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} finally {
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depth--;
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}
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}
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private List<Object> readArrayInner() {'''
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if old_arr not in text:
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print(" [失败] 找不到 readArray")
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return 1
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text = text.replace(old_arr, new_arr, 1)
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print(" readArray: 已拆成 wrapper + inner")
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marker2 = " pos++; // '['\n depth++;\n"
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if marker2 in text:
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text = text.replace(marker2,
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" pos++; // '['\n", 1)
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print(" readArrayInner: 去掉多余的 depth++")
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# ---- readValue 里那个检查可以保留（wrapper 里已经查得更严）----
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JSON.write_text(text, encoding="utf-8")
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# 检查有没有残留的裸 depth++
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lines = text.splitlines()
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stray = [i + 1 for i, l in enumerate(lines)
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if l.strip() == "depth++;" and "try {" not in lines[i - 1]]
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print(f" 残留的裸 depth++: {stray if stray else '无'}")
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print()
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count_inc = text.count("depth++;")
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count_dec = text.count("depth--;")
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print(f" depth++ 出现 {count_inc} 次，depth-- 出现 {count_dec} 次")
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print(f" {'配对正确' if count_inc == count_dec else '!! 不配对，还有问题'}")
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return 0 if count_inc == count_dec else 1
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if __name__ == "__main__":
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sys.exit(main())
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