全局异常捕获，特别是IOClosed错误，避免服务器崩溃

code-server-like/app/__init__.py

@@ -1,5 +1,32 @@
 import eventlet
-eventlet.monkey_patch()  # 进行猴子补丁操作
+import logging
+
+# 配置 eventlet 日志，抑制 IOClosed 等错误日志
+logging.getLogger('eventlet.hubs').setLevel(logging.CRITICAL)
+logging.getLogger('eventlet.greenio').setLevel(logging.CRITICAL)
+
+# 进行猴子补丁操作
+eventlet.monkey_patch()
+
+# 配置 eventlet hub 以更优雅地处理 IOClosed 错误
+try:
+    from eventlet.hubs import hub
+    # 保存原始的 handle_error 方法
+    original_handle_error = hub.Hub.handle_error
+    
+    def custom_handle_error(self, context, type, value, tb):
+        # 忽略 IOClosed 错误
+        if type.__name__ == 'IOClosed' and 'Operation on closed file' in str(value):
+            return
+        # 其他错误调用原始方法
+        original_handle_error(self, context, type, value, tb)
+    
+    # 替换原始方法
+    hub.Hub.handle_error = custom_handle_error
+except Exception as e:
+    # 如果修改失败，忽略错误
+    pass
+
 from flask import Flask
 from .views.routes import main_bp
 from .views.file import file_bp

code-server-like/app/sockets/terminal_service.py

@@ -29,8 +29,12 @@ terminal_bp = Blueprint('terminal', __name__, url_prefix='/vsc-like')
 
 
 def set_winsize(fd, row, col, xpix=0, ypix=0):
-    winsize = struct.pack("HHHH", row, col, xpix, ypix)
-    fcntl.ioctl(fd, termios.TIOCSWINSZ, winsize)
+    try:
+        winsize = struct.pack("HHHH", row, col, xpix, ypix)
+        fcntl.ioctl(fd, termios.TIOCSWINSZ, winsize)
+    except (OSError, IOError):
+        # File descriptor closed or invalid, do nothing
+        pass
 
 
 def read_and_forward_pty_output(fd=None, pid=None, room_id=None,namespace=None):
@@ -67,21 +71,35 @@ def read_and_forward_pty_output(fd=None, pid=None, room_id=None,namespace=None):
                 return
             if fd:
                 timeout_sec = 0
-                (data_ready, _, _) = select.select([fd], [], [], timeout_sec)
-                if data_ready:
-                    # output = os.read(fd, max_read_bytes).decode('ascii')
-                    timeout=0.1
-                    try:
-                        output = os.read(fd, max_read_bytes).decode()
-                    except Exception as err:
-                        output = """
-                        ***AQUI WEB TERM ERR***
-                        {}
-                        ***********************
-                        """.format(err)
-                    # the key for different visitor to get different terminal (instead of mixing up)
-                    # is to let the background task push pty response to each one's own (default) ROOM!
-                    namespace.emit("pty_output", {"output": output}, room=room_id)
+                try:
+                    # Check if file descriptor is still valid by trying to select on it
+                    (data_ready, _, _) = select.select([fd], [], [], timeout_sec)
+                    if data_ready:
+                        timeout=0.1
+                        try:
+                            output = os.read(fd, max_read_bytes).decode()
+                        except (OSError, IOError, EOFError) as err:
+                            # File descriptor closed or other IO error, exit gracefully
+                            return
+                        except UnicodeDecodeError as err:
+                            output = """
+                            ***AQUI WEB TERM ERR***
+                            Unicode decode error: {}
+                            ***********************
+                            """.format(err)
+                        # the key for different visitor to get different terminal (instead of mixing up)
+                        # is to let the background task push pty response to each one's own (default) ROOM!
+                        try:
+                            namespace.emit("pty_output", {"output": output}, room=room_id)
+                        except Exception:
+                            # If emit fails, the client is probably disconnected, exit
+                            return
+                except (OSError, IOError) as err:
+                    # File descriptor closed or invalid, exit gracefully
+                    return
+    except Exception as e:
+        # Catch any other unexpected exceptions to prevent server crash
+        pass
     finally:
         # Clean up file descriptor if it's open
         if fd:
@@ -158,7 +176,13 @@ class VSCLikeNameSpace(Namespace):
         if fd:
             # print("writing to ptd: %s" % data["input"])
             # os.write(fd, data["input"].encode('ascii'))
-            os.write(fd, data["input"].encode())
+            try:
+                os.write(fd, data["input"].encode())
+            except (OSError, IOError):
+                # File descriptor closed or invalid, clean up
+                disconnect()
+                session['terminal_config'] = TERM_INIT_CONFIG
+                return
 
     
     def on_resize(self, data):
@@ -174,10 +198,29 @@ class VSCLikeNameSpace(Namespace):
             return
         fd = session.get('terminal_config').get('fd')
         if fd:
-            set_winsize(fd, data["rows"], data["cols"])
+            # 检查文件描述符是否有效
+            try:
+                # 尝试一个简单的操作来检查文件描述符是否有效
+                os.fstat(fd)
+                set_winsize(fd, data["rows"], data["cols"])
+            except (OSError, IOError):
+                # 文件描述符无效，清理资源
+                disconnect()
+                session['terminal_config'] = TERM_INIT_CONFIG
+                return
 
     def on_disconnect(self):
-        child_pid = session.get('terminal_config', {}).get('child_pid')
+        terminal_config = session.get('terminal_config', {})
+        child_pid = terminal_config.get('child_pid')
+        fd = terminal_config.get('fd')
+        
+        # 先关闭文件描述符，避免其他操作尝试使用无效的文件描述符
+        if fd:
+            try:
+                os.close(fd)
+            except Exception:
+                pass
+        
         if child_pid:
             try:
                 child_process = psutil.Process(child_pid)
@@ -196,21 +239,14 @@ class VSCLikeNameSpace(Namespace):
                     pass
             except psutil.TimeoutExpired:
                 # If process didn't terminate in time, kill it forcefully
-                child_process.kill()
                 try:
+                    child_process.kill()
                     child_process.wait(timeout=1)
                 except Exception:
                     pass
             except Exception as err:
                 current_app.logger.error(f'Error terminating process: {err}')
-            finally:
-                # Close the file descriptor if it's open
-                fd = session.get('terminal_config', {}).get('fd')
-                if fd:
-                    try:
-                        os.close(fd)
-                    except Exception:
-                        pass
-                # Reset session config
-                session['terminal_config'] = TERM_INIT_CONFIG
+        
+        # Reset session config
+        session['terminal_config'] = TERM_INIT_CONFIG
         current_app.logger.debug('Client disconnected')

code-server-like/run.py

@@ -1,12 +1,32 @@
 from app import create_app
 from app.extensions import socketio
+import logging
+
+# 配置日志，减少eventlet的调试日志
+logging.getLogger('eventlet').setLevel(logging.ERROR)
+logging.getLogger('socketio').setLevel(logging.ERROR)
+logging.getLogger('werkzeug').setLevel(logging.ERROR)
+
 app = create_app()
 
 if __name__ == '__main__':
-    socketio.run(
-        app,
-        host="0.0.0.0",
-        port=5200,
-        debug=False,                # 开发期打开
-        allow_unsafe_werkzeug=True, # 避免 dev server 的安全限制提示
+    try:
+        socketio.run(
+            app,
+            host="0.0.0.0",
+            port=5200,
+            debug=False,                # 开发期打开
+            allow_unsafe_werkzeug=True, # 避免 dev server 的安全限制提示
+            log_output=False            # 禁用详细输出
         )
+    except KeyboardInterrupt:
+        print("Server stopped by user")
+    except Exception as e:
+        # 捕获所有异常，包括 eventlet 内部的 IOClosed 错误
+        if "IOClosed" in str(type(e).__name__) or "Operation on closed file" in str(e):
+            # 优雅处理 eventlet 关闭文件的错误
+            print("Eventlet IOClosed error handled gracefully")
+        else:
+            # 其他异常仍然打印
+            import traceback
+            traceback.print_exc()