Hermes
8b5dacda58
User reported: '已连接, 但终端啥也不显示'
Likely cause: command ran but stdout was empty / scrolled to wrong place
/ output widget didn't refresh before worker finished.
Changes:
- Eagerly show the typed command in the output area (\$ <cmd>) so user
sees the input was received even if the worker hangs/fails
- Show '(stdout 为空)' placeholder when worker returns no output, so it's
clear the worker actually ran
- Force output.repaint() and ensureCursorVisible() after append
- Add 2 diagnostic buttons in terminal bottom bar:
* [🔍 诊断] prints current SSH connection / worker state
* [▶ 测试命令] pre-fills a known-good test command
- Make CommandWorker explicitly check conn.connected before exec
- Surface full traceback in stderr on exception instead of bare str(e)
All 15 existing tests still pass (core 6/6 + UI 3/3 + E2E 6/6).
497 lines
19 KiB
Python
497 lines
19 KiB
Python
"""
|
||
主窗口
|
||
- 左侧：主机列表 + 操作
|
||
- 右侧：标签页（终端、文件浏览、监控、AI Agent）
|
||
"""
|
||
import sys
|
||
import time
|
||
from typing import Optional
|
||
|
||
from PyQt5.QtCore import Qt, QSize
|
||
from PyQt5.QtGui import QFont, QIcon, QKeySequence
|
||
from PyQt5.QtWidgets import (
|
||
QMainWindow, QWidget, QVBoxLayout, QHBoxLayout, QListWidget, QListWidgetItem,
|
||
QPushButton, QLineEdit, QLabel, QSplitter, QTabWidget, QPlainTextEdit,
|
||
QGroupBox, QFormLayout, QSpinBox, QMessageBox, QStatusBar, QAction,
|
||
QFileDialog, QInputDialog, QToolBar, QApplication, QStyle, QShortcut,
|
||
)
|
||
|
||
from core.manager import ConnectionManager
|
||
from core.ai_agent import AIAgent
|
||
from .workers import ConnectWorker, CommandWorker
|
||
from .widgets import FileBrowser, MonitorPanel, AIChatPanel
|
||
from .config_dialog import AIConfigDialog
|
||
|
||
|
||
APP_NAME = "SSHClient"
|
||
APP_VERSION = "1.0.0"
|
||
|
||
|
||
class MainWindow(QMainWindow):
|
||
def __init__(self):
|
||
super().__init__()
|
||
self.setWindowTitle(f"{APP_NAME} v{APP_VERSION} - AI 增强 SSH 客户端")
|
||
self.resize(1280, 800)
|
||
|
||
self.manager = ConnectionManager()
|
||
self.agent = AIAgent()
|
||
|
||
self.current_host_id: Optional[str] = None
|
||
self.cmd_worker: Optional[CommandWorker] = None
|
||
self.connect_worker: Optional[ConnectWorker] = None
|
||
|
||
self._build_ui()
|
||
self._build_menu()
|
||
self._build_statusbar()
|
||
self._load_hosts_to_list()
|
||
|
||
# ============================================================
|
||
# UI 构建
|
||
# ============================================================
|
||
def _build_ui(self):
|
||
central = QWidget()
|
||
self.setCentralWidget(central)
|
||
root = QHBoxLayout(central)
|
||
root.setContentsMargins(6, 6, 6, 6)
|
||
root.setSpacing(6)
|
||
|
||
splitter = QSplitter(Qt.Horizontal)
|
||
root.addWidget(splitter)
|
||
|
||
# ====== 左侧：主机面板 ======
|
||
left = QWidget()
|
||
lv = QVBoxLayout(left)
|
||
lv.setContentsMargins(4, 4, 4, 4)
|
||
lv.setSpacing(6)
|
||
|
||
host_title = QLabel("🖥 主机")
|
||
host_title.setStyleSheet("font-size: 12pt; font-weight: bold; padding: 4px;")
|
||
lv.addWidget(host_title)
|
||
|
||
self.host_list = QListWidget()
|
||
self.host_list.itemSelectionChanged.connect(self._on_host_selected)
|
||
self.host_list.itemDoubleClicked.connect(lambda _: self._do_connect())
|
||
lv.addWidget(self.host_list, 1)
|
||
|
||
# 主机操作按钮
|
||
btn_grid = QVBoxLayout()
|
||
btn_grid.setSpacing(4)
|
||
self.btn_add = QPushButton("➕ 新增主机")
|
||
self.btn_add.clicked.connect(self._add_host)
|
||
self.btn_edit = QPushButton("✏ 编辑")
|
||
self.btn_edit.clicked.connect(self._edit_host)
|
||
self.btn_delete = QPushButton("🗑 删除")
|
||
self.btn_delete.clicked.connect(self._delete_host)
|
||
self.btn_connect = QPushButton("🔌 连接")
|
||
self.btn_connect.clicked.connect(self._do_connect)
|
||
self.btn_disconnect = QPushButton("⛔ 断开")
|
||
self.btn_disconnect.clicked.connect(self._do_disconnect)
|
||
for b in (self.btn_add, self.btn_edit, self.btn_delete,
|
||
self.btn_connect, self.btn_disconnect):
|
||
btn_grid.addWidget(b)
|
||
lv.addLayout(btn_grid)
|
||
|
||
# 连接状态
|
||
self.conn_status_label = QLabel("未选择")
|
||
self.conn_status_label.setStyleSheet("color: #666; padding: 4px;")
|
||
lv.addWidget(self.conn_status_label)
|
||
|
||
splitter.addWidget(left)
|
||
|
||
# ====== 右侧：Tab 区 ======
|
||
self.tabs = QTabWidget()
|
||
self.tabs.setDocumentMode(True)
|
||
|
||
# Tab1: 终端
|
||
self.terminal = self._build_terminal_tab()
|
||
self.tabs.addTab(self.terminal, "⌨ 终端")
|
||
|
||
# Tab2: 文件浏览
|
||
self.file_browser = FileBrowser(self.manager)
|
||
self.tabs.addTab(self.file_browser, "📁 文件")
|
||
|
||
# Tab3: 监控
|
||
self.monitor = MonitorPanel(self.manager)
|
||
self.tabs.addTab(self.monitor, "📊 监控")
|
||
|
||
# Tab4: AI Agent
|
||
self.ai_panel = AIChatPanel(self.manager, self.agent)
|
||
self.tabs.addTab(self.ai_panel, "🤖 AI Agent")
|
||
|
||
splitter.addWidget(self.tabs)
|
||
splitter.setSizes([280, 1000])
|
||
|
||
def _build_terminal_tab(self) -> QWidget:
|
||
w = QWidget()
|
||
v = QVBoxLayout(w)
|
||
v.setContentsMargins(6, 6, 6, 6)
|
||
v.setSpacing(4)
|
||
|
||
# 命令输入
|
||
cmd_row = QHBoxLayout()
|
||
self.cmd_input = QLineEdit()
|
||
self.cmd_input.setPlaceholderText("输入命令，回车执行 (例如: ls -la /tmp)")
|
||
self.cmd_input.returnPressed.connect(self._run_command)
|
||
QShortcut(QKeySequence("Ctrl+Return"), self.cmd_input,
|
||
activated=self._run_command)
|
||
self.btn_run = QPushButton("执行")
|
||
self.btn_run.clicked.connect(self._run_command)
|
||
self.timeout_spin = QSpinBox()
|
||
self.timeout_spin.setRange(5, 600)
|
||
self.timeout_spin.setValue(30)
|
||
self.timeout_spin.setSuffix(" 秒")
|
||
cmd_row.addWidget(QLabel("$"))
|
||
cmd_row.addWidget(self.cmd_input, 1)
|
||
cmd_row.addWidget(QLabel("超时:"))
|
||
cmd_row.addWidget(self.timeout_spin)
|
||
cmd_row.addWidget(self.btn_run)
|
||
v.addLayout(cmd_row)
|
||
|
||
# 快速命令栏
|
||
quick_row = QHBoxLayout()
|
||
quick_row.addWidget(QLabel("常用:"))
|
||
for label, cmd in [
|
||
("pwd && uname -a", "pwd && uname -a"),
|
||
("df -h", "df -h"),
|
||
("free -h", "free -h"),
|
||
("top -bn1 | head -20", "top -bn1 | head -20"),
|
||
("netstat -tlnp", "netstat -tlnp 2>/dev/null || ss -tlnp"),
|
||
("ls /etc", "ls -la /etc"),
|
||
]:
|
||
b = QPushButton(label)
|
||
b.clicked.connect(lambda _, c=cmd: self.cmd_input.setText(c))
|
||
quick_row.addWidget(b)
|
||
quick_row.addStretch(1)
|
||
v.addLayout(quick_row)
|
||
|
||
# 输出
|
||
self.output = QPlainTextEdit()
|
||
self.output.setReadOnly(True)
|
||
self.output.setStyleSheet("""
|
||
QPlainTextEdit {
|
||
background: #0c0c0c;
|
||
color: #e0e0e0;
|
||
font-family: Consolas, 'Courier New', monospace;
|
||
font-size: 10pt;
|
||
}
|
||
""")
|
||
v.addWidget(self.output, 1)
|
||
|
||
# 输出操作
|
||
bottom = QHBoxLayout()
|
||
self.btn_clear_out = QPushButton("清空")
|
||
self.btn_clear_out.clicked.connect(self.output.clear)
|
||
self.btn_copy = QPushButton("复制输出")
|
||
self.btn_copy.clicked.connect(lambda: QApplication.clipboard().setText(self.output.toPlainText()))
|
||
self.btn_debug = QPushButton("🔍 诊断")
|
||
self.btn_debug.setToolTip("打印 SSH 连接和 worker 状态")
|
||
self.btn_debug.clicked.connect(self._debug_state)
|
||
self.btn_test = QPushButton("▶ 测试命令")
|
||
self.btn_test.setToolTip("执行 'echo hello-sshclient && pwd && uname -a' 验证连通性")
|
||
self.btn_test.clicked.connect(lambda: self.cmd_input.setText("echo hello-sshclient && pwd && uname -a"))
|
||
bottom.addWidget(self.btn_clear_out)
|
||
bottom.addWidget(self.btn_copy)
|
||
bottom.addWidget(self.btn_debug)
|
||
bottom.addStretch(1)
|
||
bottom.addWidget(self.btn_test)
|
||
v.addLayout(bottom)
|
||
|
||
return w
|
||
|
||
def _build_menu(self):
|
||
menubar = self.menuBar()
|
||
# 文件
|
||
m_file = menubar.addMenu("文件(&F)")
|
||
act_export = QAction("导出主机配置", self)
|
||
act_export.triggered.connect(self._export_hosts)
|
||
m_file.addAction(act_export)
|
||
act_import = QAction("导入主机配置", self)
|
||
act_import.triggered.connect(self._import_hosts)
|
||
m_file.addAction(act_import)
|
||
m_file.addSeparator()
|
||
act_exit = QAction("退出", self)
|
||
act_exit.setShortcut("Ctrl+Q")
|
||
act_exit.triggered.connect(self.close)
|
||
m_file.addAction(act_exit)
|
||
# AI
|
||
m_ai = menubar.addMenu("AI(&A)")
|
||
act_ai = QAction("⚙ AI 设置...", self)
|
||
act_ai.triggered.connect(self._show_ai_config)
|
||
m_ai.addAction(act_ai)
|
||
act_clear = QAction("清空 AI 对话", self)
|
||
act_clear.triggered.connect(lambda: self.ai_panel._clear())
|
||
m_ai.addAction(act_clear)
|
||
# 帮助
|
||
m_help = menubar.addMenu("帮助(&H)")
|
||
act_about = QAction("关于", self)
|
||
act_about.triggered.connect(self._about)
|
||
m_help.addAction(act_about)
|
||
|
||
def _build_statusbar(self):
|
||
self.statusBar().showMessage(f"{APP_NAME} v{APP_VERSION} 就绪")
|
||
|
||
# ============================================================
|
||
# 主机列表
|
||
# ============================================================
|
||
def _load_hosts_to_list(self):
|
||
self.host_list.clear()
|
||
for h in self.manager.list_hosts():
|
||
item = QListWidgetItem(f"{h.get('name', h.get('host'))}\n {h.get('username','')}@{h.get('host','')}:{h.get('port',22)}")
|
||
item.setData(Qt.UserRole, h.get("id"))
|
||
self.host_list.addItem(item)
|
||
# 默认选中第一项
|
||
if self.host_list.count() > 0:
|
||
self.host_list.setCurrentRow(0)
|
||
self._refresh_status_indicator()
|
||
|
||
def _on_host_selected(self):
|
||
items = self.host_list.selectedItems()
|
||
if not items:
|
||
self.current_host_id = None
|
||
self.terminal_input_set_enabled(False)
|
||
return
|
||
host_id = items[0].data(Qt.UserRole)
|
||
self.current_host_id = host_id
|
||
self.file_browser.set_host(host_id)
|
||
self.monitor.set_host(host_id)
|
||
self.ai_panel.set_host(host_id)
|
||
self._refresh_status_indicator()
|
||
|
||
def _refresh_status_indicator(self):
|
||
if not self.current_host_id:
|
||
self.conn_status_label.setText("未选择主机")
|
||
return
|
||
c = self.manager.get_connection(self.current_host_id)
|
||
if c and c.connected:
|
||
self.conn_status_label.setText(f"🟢 已连接: {c.username}@{c.host}:{c.port}")
|
||
self.conn_status_label.setStyleSheet("color: #2e7d32; padding: 4px;")
|
||
self.terminal_input_set_enabled(True)
|
||
else:
|
||
self.conn_status_label.setText("🔴 未连接")
|
||
self.conn_status_label.setStyleSheet("color: #c62828; padding: 4px;")
|
||
self.terminal_input_set_enabled(False)
|
||
|
||
def terminal_input_set_enabled(self, enabled: bool):
|
||
self.cmd_input.setEnabled(enabled)
|
||
self.btn_run.setEnabled(enabled)
|
||
|
||
# ============================================================
|
||
# 主机 CRUD
|
||
# ============================================================
|
||
def _add_host(self):
|
||
info = self._prompt_host_info()
|
||
if info is None:
|
||
return
|
||
self.manager.add_host(info)
|
||
self._load_hosts_to_list()
|
||
self.statusBar().showMessage("已新增主机", 3000)
|
||
|
||
def _edit_host(self):
|
||
if not self.current_host_id:
|
||
return
|
||
h = self.manager.get_host(self.current_host_id)
|
||
if not h:
|
||
return
|
||
info = self._prompt_host_info(h)
|
||
if info is None:
|
||
return
|
||
self.manager.update_host(self.current_host_id, info)
|
||
self._load_hosts_to_list()
|
||
self.statusBar().showMessage("已更新主机", 3000)
|
||
|
||
def _delete_host(self):
|
||
if not self.current_host_id:
|
||
return
|
||
h = self.manager.get_host(self.current_host_id)
|
||
if not h:
|
||
return
|
||
if QMessageBox.question(
|
||
self, "确认删除",
|
||
f"确定删除主机「{h.get('name', h.get('host'))}」？",
|
||
QMessageBox.Yes | QMessageBox.No
|
||
) != QMessageBox.Yes:
|
||
return
|
||
self.manager.remove_host(self.current_host_id)
|
||
self._load_hosts_to_list()
|
||
self.statusBar().showMessage("已删除", 3000)
|
||
|
||
def _prompt_host_info(self, current: Optional[dict] = None):
|
||
from .host_dialog import HostDialog
|
||
dlg = HostDialog(self, current)
|
||
if dlg.exec_() == dlg.Accepted:
|
||
return dlg.get_value()
|
||
return None
|
||
|
||
# ============================================================
|
||
# 连接
|
||
# ============================================================
|
||
def _do_connect(self):
|
||
if not self.current_host_id:
|
||
QMessageBox.information(self, "提示", "请先选择一台主机")
|
||
return
|
||
if self.connect_worker and self.connect_worker.isRunning():
|
||
return
|
||
h = self.manager.get_host(self.current_host_id)
|
||
self.statusBar().showMessage(f"正在连接 {h.get('host')}...")
|
||
self.btn_connect.setEnabled(False)
|
||
self.connect_worker = ConnectWorker(self.manager, self.current_host_id)
|
||
self.connect_worker.finished_with.connect(self._on_connect_done)
|
||
self.connect_worker.start()
|
||
|
||
def _on_connect_done(self, host_id: str, ok: bool, msg: str):
|
||
self.btn_connect.setEnabled(True)
|
||
if ok:
|
||
self.statusBar().showMessage(msg, 5000)
|
||
# 同步到 UI
|
||
self.file_browser.set_host(host_id)
|
||
self.monitor.set_host(host_id)
|
||
else:
|
||
QMessageBox.critical(self, "连接失败", msg)
|
||
self.statusBar().showMessage(f"连接失败: {msg}", 5000)
|
||
self._refresh_status_indicator()
|
||
|
||
def _do_disconnect(self):
|
||
if not self.current_host_id:
|
||
return
|
||
self.manager.disconnect(self.current_host_id)
|
||
self.statusBar().showMessage("已断开", 3000)
|
||
self._refresh_status_indicator()
|
||
# 监控如果开着也会自己检测到
|
||
|
||
# ============================================================
|
||
# 命令执行
|
||
# ============================================================
|
||
def _run_command(self):
|
||
cmd = self.cmd_input.text().strip()
|
||
if not cmd:
|
||
return
|
||
if not self.current_host_id:
|
||
QMessageBox.warning(self, "提示", "请先连接主机")
|
||
return
|
||
conn = self.manager.get_connection(self.current_host_id)
|
||
if not conn or not conn.connected:
|
||
QMessageBox.warning(self, "提示", "当前主机未连接")
|
||
return
|
||
# 先在输出区显示命令（即使后续 worker 失败也能看到用户输入了啥）
|
||
self._append_out(f"\n$ {cmd}")
|
||
self.cmd_input.clear()
|
||
self.btn_run.setEnabled(False)
|
||
self.btn_run.setText("执行中...")
|
||
timeout = self.timeout_spin.value()
|
||
self.cmd_worker = CommandWorker(conn, cmd, timeout)
|
||
self.cmd_worker.finished_with.connect(self._on_cmd_done)
|
||
self.cmd_worker.start()
|
||
# 强制刷新滚动到底
|
||
self.output.repaint()
|
||
|
||
def _on_cmd_done(self, code: int, out: str, err: str):
|
||
self.btn_run.setEnabled(True)
|
||
self.btn_run.setText("执行")
|
||
if out:
|
||
self._append_out(out)
|
||
else:
|
||
self._append_out("(stdout 为空)")
|
||
if err:
|
||
self._append_out_err(err)
|
||
self._append_out(f"[exit={code}]")
|
||
self.statusBar().showMessage(f"命令完成 (退出码 {code})", 3000)
|
||
# 强制刷新 + 滚到底
|
||
self.output.repaint()
|
||
|
||
def _append_out(self, text: str):
|
||
# 不再 rstrip("\n")，保留原样；appendPlainText 本身会处理换行
|
||
self.output.appendPlainText(text)
|
||
# 滚到底
|
||
sb = self.output.verticalScrollBar()
|
||
sb.setValue(sb.maximum())
|
||
self.output.ensureCursorVisible()
|
||
|
||
def _append_out_err(self, text: str):
|
||
self.output.appendPlainText("[ERR] " + text.replace("\n", "\n[ERR] "))
|
||
sb = self.output.verticalScrollBar()
|
||
sb.setValue(sb.maximum())
|
||
|
||
def _debug_state(self):
|
||
"""诊断按钮：打印当前 SSH 连接和 worker 状态"""
|
||
lines = ["=== Debug State ==="]
|
||
lines.append(f"current_host_id: {self.current_host_id}")
|
||
if self.current_host_id:
|
||
h = self.manager.get_host(self.current_host_id)
|
||
lines.append(f"host config: {h}")
|
||
conn = self.manager.get_connection(self.current_host_id)
|
||
if conn:
|
||
lines.append(f"conn.connected: {conn.connected}")
|
||
lines.append(f"conn.client: {conn.client}")
|
||
lines.append(f"conn.sftp: {conn.sftp}")
|
||
if conn.client:
|
||
try:
|
||
transport = conn.client.get_transport()
|
||
lines.append(f"transport active: {transport.is_active() if transport else 'None'}")
|
||
except Exception as e:
|
||
lines.append(f"transport error: {e}")
|
||
else:
|
||
lines.append("conn: None (not connected)")
|
||
lines.append(f"cmd_worker: {self.cmd_worker}")
|
||
if self.cmd_worker:
|
||
lines.append(f"cmd_worker.isRunning: {self.cmd_worker.isRunning()}")
|
||
lines.append("=== End Debug ===")
|
||
self._append_out("\n".join(lines))
|
||
self.statusBar().showMessage("诊断信息已输出", 3000)
|
||
|
||
# ============================================================
|
||
# AI / 关于
|
||
# ============================================================
|
||
def _show_ai_config(self):
|
||
dlg = AIConfigDialog(self.agent, self)
|
||
if dlg.exec_():
|
||
self.statusBar().showMessage("AI 配置已更新", 3000)
|
||
|
||
def _about(self):
|
||
QMessageBox.about(
|
||
self, "关于",
|
||
f"<h3>{APP_NAME} v{APP_VERSION}</h3>"
|
||
"<p>基于 PyQt5 + paramiko 的 Windows SSH 客户端</p>"
|
||
"<ul>"
|
||
"<li>多主机管理与连接</li>"
|
||
"<li>远程终端</li>"
|
||
"<li>SFTP 文件浏览 / 上传 / 下载</li>"
|
||
"<li>CPU / 内存 / 磁盘 / 网络 实时监控</li>"
|
||
"<li>AI Agent（OpenAI 兼容 API，支持工具调用）</li>"
|
||
"</ul>"
|
||
"<p style='color:#888;'>本程序使用 paramiko、PyQt5、psutil、requests 等开源库。</p>"
|
||
)
|
||
|
||
def _export_hosts(self):
|
||
import json
|
||
path, _ = QFileDialog.getSaveFileName(self, "导出主机配置", "hosts.json", "JSON (*.json)")
|
||
if not path:
|
||
return
|
||
with open(path, "w", encoding="utf-8") as f:
|
||
json.dump(self.manager.list_hosts(), f, ensure_ascii=False, indent=2)
|
||
self.statusBar().showMessage(f"已导出到 {path}", 5000)
|
||
|
||
def _import_hosts(self):
|
||
import json
|
||
path, _ = QFileDialog.getOpenFileName(self, "导入主机配置", "", "JSON (*.json)")
|
||
if not path:
|
||
return
|
||
try:
|
||
with open(path, "r", encoding="utf-8") as f:
|
||
hosts = json.load(f)
|
||
for h in hosts:
|
||
if "id" in h:
|
||
del h["id"]
|
||
self.manager.add_host(h)
|
||
self._load_hosts_to_list()
|
||
self.statusBar().showMessage(f"已导入 {len(hosts)} 台主机", 5000)
|
||
except Exception as e:
|
||
QMessageBox.critical(self, "导入失败", str(e))
|
||
|
||
def closeEvent(self, e):
|
||
try:
|
||
self.monitor._stop_worker()
|
||
self.manager.close_all()
|
||
except Exception:
|
||
pass
|
||
super().closeEvent(e)
|