使用dbgpProxy时Xdebug无法连接本地计算机的问题排查

相关配置文件 #

launch.json 配置 #

{
  "name": "Remote listen for Xdebug",
  "type": "php",
  "request": "launch",
  "port": 26357,
  "xdebugSettings": {
    "max_children": 128,
    "max_data": -1,
    "max_depth": 3
  },
  "pathMappings": {
    "/share/ZFS2_DATA/Web/dolibarr-1": "${workspaceRoot}",
    "/share/ZFS2_DATA/Web/dolibarr-2": "${workspaceRoot}",
    "/share/ZFS2_DATA/Web/dolibarr-3": "${workspaceRoot}",
    "/share/ZFS2_DATA/Web/dolibarr-4": "${workspaceRoot}",
  },
  "log": true,
  "proxy": {
    "enable": true,
    "host": "192.168.1.88",
    "port": 26356,
    "key": "VSCODE",
    "allowMultipleSessions": false
  }
},

99-xdebug.ini 配置 #

[xDebug]
zend_extension = xdebug
xdebug.mode = debug,develop
xdebug.remote_handler = "dbgp"
xdebug.remote_cookie_expire_time = 36000
xdebug.start_with_request=trigger
;xdebug.discover_client_host=true
;xdebug.client_host = 192.168.1.57
xdebug.client_host = 127.0.0.1
xdebug.client_port = 26357
xdebug.show_exception_trace=false
xdebug.log = /tmp/xdebug.log
xdebug.log_level=10
xdebug.trigger_value=VSCODE
xdebug.idekey=VSCODE

dbgpProxy 启动命令及输出 #

启动命令：

./dbgpProxy -s 0.0.0.0:26357 -i 0.0.0.0:26356

启动输出：

[david@localhost ~]$ ./dbgpProxy -s 0.0.0.0:26357 -i 0.0.0.0:26356
Xdebug DBGp proxy (0.6.1)
Copyright %s by Derick Rethans 2024
2024-11-11 07:20:38.038 [warn] [SSL] The 'certs/fullchain.pem' file could not be found, not enabling SSL listeners
2024-11-11 07:20:38.039 [info] [dbgpProxy] Proxy started
2024-11-11 07:20:38.039 [info] [server] Started server server on 0.0.0.0:26357
2024-11-11 07:20:38.039 [info] [server] Started client server on 0.0.0.0:26356
2024-11-11 07:20:41.436 [info] [server] Start new client connection from 192.168.1.57:11892
2024-11-11 07:20:41.953 [info] [proxyinit] [VSCODE] Added connection for IDE Key 'VSCODE': 192.168.1.57:26357
2024-11-11 07:20:41.953 [info] [server] Closing client connection from 192.168.1.57:11892

VSCode 输出信息 #

Registering VSCODE on port 26357 with proxy @ 192.168.1.88:26356
Registration successful

Xdebug 日志内容 #

[30035] [Step Debug] <- detach -i 1 -- "dbgpProxy has no IDE connected to it"
[30035] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="detach" transaction_id="1" status="stopping" reason="ok"></response>

[30035] [Step Debug] WARN: Debug client detached: "dbgpProxy has no IDE connected to it".
[30035] Log closed at 2024-11-11 07:34:21.343605

[942] Log opened at 2024-11-11 07:34:25.171655
[942] [Config] DEBUG: Checking if trigger 'XDEBUG_TRIGGER' is enabled for mode 'debug'
[942] [Config] INFO: Trigger value for 'XDEBUG_TRIGGER' not found, falling back to 'XDEBUG_SESSION'
[942] [Config] DEBUG: The trigger value 'VSCODE' matched the shared secret 'VSCODE' for mode 'debug'
[942] [Step Debug] INFO: Connecting to configured address/port: 127.0.0.1:26357.
[942] [Step Debug] INFO: Connected to debugging client: 127.0.0.1:26357 (through xdebug.client_host/xdebug.client_port). :-)
[942] [Step Debug] -> <init xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" fileuri="file:///share/ZFS2_DATA/Web/dolibarr-1/htdocs/custom/evterceros/billing/api/firmarFacturas.php" language="PHP" xdebug:language_version="7.4.30" protocol_version="1.0" appid="942" idekey="VSCODE"><engine version="3.1.6"><![CDATA[Xdebug]]></engine><author><![CDATA[Derick Rethans]]></author><url><![CDATA[https://xdebug.org]]></url><copyright><![CDATA[Copyright (c) 2002-2022 by Derick Rethans]]></copyright></init>

[942] [Step Debug] <- detach -i 1 -- "dbgpProxy has no IDE connected to it"
[942] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="detach" transaction_id="1" status="stopping" reason="ok"></response>

[942] [Step Debug] WARN: Debug client detached: "dbgpProxy has no IDE connected to it".
[942] Log closed at 2024-11-11 07:34:25.223544

dbgpProxy 日志内容 #

2024-11-11 07:34:00.364 [info] [server] Start new client connection from 192.168.1.57:12102
2024-11-11 07:34:00.869 [info] [proxyinit] [VSCODE] Added connection for IDE Key 'VSCODE': 192.168.1.57:26357
2024-11-11 07:34:00.869 [info] [server] Closing client connection from 192.168.1.57:12102
2024-11-11 07:34:21.342 [err ] [proxy-client] [VSCODE] IDE not connected: dial tcp 192.168.1.57:26357: connect: connection timed out
2024-11-11 07:34:21.342 [warn] [proxy-client] [VSCODE] Removed connection information for 'VSCODE': dial tcp 192.168.1.57:26357: connect: connection timed out
2024-11-11 07:34:21.343 [warn] [server] Handler response error: Error reading response: Error reading length: EOF
2024-11-11 07:34:21.343 [info] [server] Closing server connection from 127.0.0.1:48254
2024-11-11 07:34:25.172 [info] [server] Start new server connection from 127.0.0.1:48350
2024-11-11 07:34:25.172 [info] [proxy-client] [VSCODE] Could not find IDE connection for IDE Key 'VSCODE'
2024-11-11 07:34:25.172 [warn] [server] Handler response error: Error reading response: Error reading length: EOF
2024-11-11 07:34:25.172 [info] [server] Closing server connection from 127.0.0.1:48350

疑问 #

1. 当前问题是端口使用错误，还是防火墙限制？已确认iptables和Windows防火墙无相关限制，怀疑是物理防火墙导致。
2. 捕获到的数据包（目标IP为192.168.1.57，端口26357）是否是代理服务器尝试连接我的计算机？

内容的提问来源于stack exchange，提问作者Daviid