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StartServer.py
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StartServer.py
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import os
import threading
import json
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
import sys
sys.path.append('frontend')
sys.path.append('backend')
from frontend.server import Ui_ServerWindow
from frontend.adduser import Ui_addUserForm
from backend.WHUFTPServer import WHUFTPServer
import socket
import shutil
class EmitStr(QObject): # 日志输出类
textWrite = pyqtSignal(str) # 定义一个发送str的信号
def write(self, text):
self.textWrite.emit(str(text))
class AddUserWin(QWidget, Ui_addUserForm):
def __init__(self):
super().__init__()
self.setupUi(self)
class ServerUI(QMainWindow, Ui_ServerWindow):
def __init__(self, parent=None):
super(ServerUI, self).__init__(parent)
# sys.stdout = EmitStr(textWrite=self.outputWriteInfo) # redirect stdout
# sys.stderr = EmitStr(textWrite=self.outputWriteError) # redirect stderr
self.setupUi(self)
with open('cache/config_server.json', "r") as f:
data = f.read()
config = json.loads(data)
self.config = config
self.nameEdit.setText(config['name'])
self.addressEdit.setText(socket.gethostbyname(socket.gethostname())) # 本机ip即为FTP服务器ip
self.portEdit.setText(config['port'])
self.rootEdit.setText(config['root_dir'])
self.dbEdit.setText(config['db_path'])
self.maxconEdit.setText(config['max_cons'])
self.maxconipEdit.setText(config['max_cons_per_ip'])
self.readlimEdit.setText(config['read_limit'])
self.writelimEdit.setText(config['write_limit'])
self.rootBtn.clicked.connect(self.chosseRoot)
self.dbBtn.clicked.connect(self.chooseDatabase)
def chosseRoot(self):
dir_path = QFileDialog.getExistingDirectory(self,
'选择服务器根目录',
'/home')
if dir_path:
self.rootEdit.setText(dir_path)
def chooseDatabase(self):
db_path = QFileDialog.getOpenFileName(self,
'选择服务器数据库',
'/home')
if db_path[0]:
self.dbEdit.setText(db_path[0])
def saveConfig(self):
name = self.nameEdit.text()
port = self.portEdit.text()
root_dir = self.rootEdit.text()
db_path = self.dbEdit.text()
max_cons = self.maxconEdit.text()
max_cons_per_ip = self.maxconipEdit.text()
read_limit = self.readlimEdit.text()
write_limit = self.writelimEdit.text()
config = self.config
values = [name, port, root_dir, db_path, max_cons, max_cons_per_ip, read_limit, write_limit]
keys = config.keys()
for (key, value) in zip(keys, values):
if value:
config[key] = value
data = json.dumps(config)
with open('cache/config_server.json', 'w') as f:
f.write(data)
def closeEvent(self, e):
reply = QMessageBox.question(self,
'询问',
"确定要退出服务器吗?",
QMessageBox.Yes | QMessageBox.No,
QMessageBox.No)
if reply == QMessageBox.Yes:
self.saveConfig()
e.accept()
sys.exit(0)
else:
e.ignore()
# 输出日志至text browser
def outputWriteInfo(self, text):
self.logBrowser.append(text)
def outputWriteError(self, text):
# 错误信息用红色输出
self.logBrowser.append(f'<font color=\'#FF0000\'>{text}</font>')
class Server:
def __init__(self):
self.server = None # ftp server
self.thread_server = threading.Thread() # 服务器运行线程,防止GUI卡死
self.mainWin = ServerUI()
self.addUserWin = AddUserWin()
self.model = QFileSystemModel()
self.mainWin.treeView.setModel(self.model)
self.mainWin.treeView.header().setSectionResizeMode(0, QHeaderView.ResizeToContents)
self.mainWin.treeView.doubleClicked.connect(self.file_name) # 打开文件
self.initSignalSlots()
sys.stdout = EmitStr(textWrite=self.updateLog)
sys.stderr = EmitStr(textWrite=self.updateLog) # 将控制台输出打印在日志页面
def initSignalSlots(self):
self.mainWin.applyBtn.clicked.connect(self.apply_server)
self.mainWin.startBtn.clicked.connect(self.start_server)
self.mainWin.closeBtn.clicked.connect(self.close_server)
self.mainWin.resetBtn.clicked.connect(self.reset_server)
self.mainWin.addUserBtn.clicked.connect(self.add_user)
self.mainWin.updateBtn.clicked.connect(self.update_user_list)
self.mainWin.delUserBtn.clicked.connect(self.delete_user)
self.addUserWin.addUserBtn.clicked.connect(self.confirm_add_user)
# 应用服务器
def apply_server(self):
self.close_server()
thread_apply = threading.Thread(target=self._apply_server)
thread_apply.setDaemon(True)
thread_apply.start()
def _apply_server(self):
self.mainWin.stateLbl.setText('状态:应用中……')
# time.sleep(10) # debug use
name = self.mainWin.nameEdit.text() # seems to be dummy...
address = self.mainWin.addressEdit.text()
port = self.mainWin.portEdit.text()
root_dir = self.mainWin.rootEdit.text()
log_path = os.path.join(root_dir, 'LOG.log') # 根目录下生成日志
db_path = self.mainWin.dbEdit.text()
max_cons = self.mainWin.maxconEdit.text()
max_cons_per_ip = self.mainWin.maxconipEdit.text()
read_limit = self.mainWin.readlimEdit.text()
write_limit = self.mainWin.writelimEdit.text()
# NOTE: 避免invalid literal for int() with base 10而卡死
try:
port = int(port)
max_cons = int(max_cons)
max_cons_per_ip = int(max_cons_per_ip)
read_limit = int(read_limit) * 1024 # GUI上填写的时KB/s
write_limit = int(write_limit) * 1024
self.server = WHUFTPServer(
address, port,
read_limit, write_limit,
max_cons, max_cons_per_ip,
root_dir, log_path, db_path,
)
self.server.apply_server()
self.mainWin.applyBtn.setDisabled(True)
self.mainWin.startBtn.setDisabled(False)
self.mainWin.stateLbl.setStyleSheet(
"color: rgb(255, 255, 255); background-color: rgba(0, 170, 0, 200);")
self.mainWin.stateLbl.setText('状态:应用服务器成功!')
self.mainWin.applyBtn.setDisabled(False)
except Exception as e:
print(e)
self.server.close_server()
self.server = None
self.mainWin.stateLbl.setStyleSheet("color: rgb(255, 255, 255); background-color: rgba(255, 0, 0, 200);")
self.mainWin.stateLbl.setText('状态:应用服务器失败!')
# 开启服务器
def start_server(self):
if self.server is None:
QMessageBox.warning(self.mainWin, '警告', '请先应用服务器!')
else:
self.mainWin.stateLbl.setText('状态:启动服务器中……')
try:
self.thread_server = threading.Thread(target=self.server.start_server)
self.thread_server.setDaemon(True) # 守护线程
self.thread_server.start()
self.mainWin.startBtn.setDisabled(True)
self.mainWin.applyBtn.setDisabled(True)
self.mainWin.closeBtn.setDisabled(False)
self.mainWin.stateLbl.setStyleSheet(
"color: rgb(255, 255, 255); background-color: rgba(0, 170, 255, 200);")
self.mainWin.stateLbl.setText('状态:已开启')
# 显示用户列表
self.update_user_list()
# 显示文件目录
self.model.setRootPath(self.server.root_dir)
self.mainWin.treeView.setRootIndex(self.model.index(self.server.root_dir))
except Exception as e:
self.mainWin.stateLbl.setStyleSheet(
"color: rgb(255, 255, 255); background-color: rgba(255, 0, 0, 200);")
self.mainWin.stateLbl.setText('状态:启动服务器失败!')
def close_server(self):
if self.server:
self.server.close_server()
self.server = None
self.mainWin.startBtn.setDisabled(True)
self.mainWin.applyBtn.setDisabled(False)
self.mainWin.closeBtn.setDisabled(True)
self.mainWin.stateLbl.setStyleSheet(
"color: rgb(255, 255, 255); background-color: rgba(128, 128, 128, 200);")
self.mainWin.stateLbl.setText('状态:未开启')
# 重置服务器
def reset_server(self):
if self.server:
self.server.close_server()
self.server = None
self.mainWin.nameEdit.setText('')
# self.mainWin.addressEdit.setText('')
self.mainWin.portEdit.setText('')
self.mainWin.rootEdit.setText('')
self.mainWin.dbEdit.setText('')
self.mainWin.maxconEdit.setText('')
self.mainWin.maxconipEdit.setText('')
self.mainWin.readlimEdit.setText('')
self.mainWin.writelimEdit.setText('')
self.mainWin.startBtn.setDisabled(True)
self.mainWin.applyBtn.setDisabled(False)
self.mainWin.closeBtn.setDisabled(True)
self.mainWin.stateLbl.setStyleSheet("color: rgb(255, 255, 255); background-color: rgba(128, 128, 128, 200);")
self.mainWin.stateLbl.setText('状态:未创建')
def update_user_list(self):
if self.server:
try:
self.mainWin.userTbl.setRowCount(0)
self.mainWin.userTbl.clearContents()
user_info = self.server.authorizer.user_table
for row, item in enumerate(user_info.items()):
username = item[0]
password = item[1]['pwd']
permission = item[1]['perm']
self.mainWin.userTbl.insertRow(row)
self.mainWin.userTbl.setItem(row, 0, QTableWidgetItem(username))
self.mainWin.userTbl.setItem(row, 1, QTableWidgetItem(password))
self.mainWin.userTbl.setItem(row, 2, QTableWidgetItem(permission))
except Exception as e:
print(e)
else:
QMessageBox.warning(self.mainWin,
'警告',
'请先打开服务器!')
# 添加用户
def add_user(self):
# modification is needed
if self.server:
self.addUserWin.show()
else:
QMessageBox.warning(self.mainWin,
'警告',
'请先打开服务器!')
# 确认添加用户
def confirm_add_user(self):
# TODO: 赋予不同权限
username = self.addUserWin.nameEdit.text()
password = self.addUserWin.passwordEdit.text()
if self.server and username and password:
try:
self.server.register(username, password)
except Exception as e:
print(e)
else:
print(f'Successfully add user {username}!')
self.update_user_list()
self.addUserWin.nameEdit.setText('')
self.addUserWin.passwordEdit.setText('')
self.addUserWin.close()
def get_selected_user(self):
row = self.mainWin.userTbl.currentIndex().row()
username = self.mainWin.userTbl.item(row, 0).text()
print(username)
# password = self.mainWin.userTbl.item(row, 2).text()
# permission = self.mainWin.userTbl.item(row, 3).text()
return username
# 删除用户
def delete_user(self):
if self.server:
try:
username = self.get_selected_user()
except Exception as e:
print(e)
else:
reply = QMessageBox.question(self.mainWin,
'询问',
f'确定要删除用户{username}吗?',
QMessageBox.Yes | QMessageBox.No,
QMessageBox.No
)
if reply == QMessageBox.Yes:
try:
self.server.authorizer.remove_user(username)
self.server.del_user(username)
user_dir = os.path.join(self.server.root_dir, username)
# shutil是个神奇的玩意:)
print()
if os.path.exists(user_dir):
print(f'try to remove {user_dir}')
shutil.rmtree(user_dir)
print(f'Successfully removed user {username}!')
self.update_user_list()
except Exception as e:
print(e)
else:
pass
else:
QMessageBox.warning(self.mainWin,
'警告',
'请先打开服务器!')
def file_name(self, Qmodelidx):
print(self.model.filePath(Qmodelidx)) # 输出文件的地址。
print(self.model.fileName(Qmodelidx)) # 输出文件名
def updateLog(self,text): # 日志更新
cursor = self.mainWin.logBrowser.textCursor()
cursor.insertText(text)
self.mainWin.logBrowser.setTextCursor(cursor)
if __name__ == '__main__':
app = QApplication(sys.argv)
server = Server()
server.mainWin.show()
sys.exit(app.exec_())