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import tarfile
import datetime
import threading
import time
import json
import shutil
from flask import Flask, render_template_string, request, jsonify
from huggingface_hub import HfApi
app = Flask(__name__)
SOURCE_MOUNT = "/mnt/data"
BACKUP_DATASET = "sjfs/memos-backup-data"
CONFIG_FILE = "/tmp/auto_backup_config.json"
auto_interval_seconds = 86400
_last_backup_time = None
_auto_stop_event = threading.Event()
_auto_thread = None
def load_config():
global auto_interval_seconds
try:
with open(CONFIG_FILE, 'r') as f:
config = json.load(f)
auto_interval_seconds = config.get('interval_seconds', 86400)
except (FileNotFoundError, json.JSONDecodeError, OSError):
pass
def save_config():
try:
with open(CONFIG_FILE, 'w') as f:
json.dump({'interval_seconds': auto_interval_seconds}, f)
except OSError:
pass
HTML_TEMPLATE = """
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Memos Backup</title>
<style>
:root {
--bg: #F5F3EF;
--surface: #FFFFFF;
--border: #DDD9D2;
--border-light: #EBE8E2;
--text: #1F1F1F;
--text-muted: #8A8A8A;
--text-faint: #B5B5B5;
--accent: #6B7280;
--accent-hover: #555D67;
--accent-surface: #F2F3F5;
--green: #6B8F71;
--green-surface: #EFF5F0;
--red: #B86B6B;
--red-surface: #F5F0F0;
--blue: #6B8BA4;
--blue-surface: #EFF4F7;
--radius: 5px;
--transition: 0.2s ease;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
font-family: -apple-system, 'Hiragino Sans', 'Noto Sans SC', 'Yu Gothic', sans-serif;
background: var(--bg);
color: var(--text);
font-size: 14px;
line-height: 1.6;
-webkit-font-smoothing: antialiased;
}
.top-bar {
height: 3px;
background: var(--accent);
}
.container {
max-width: 680px;
margin: 0 auto;
padding: 40px 20px 60px;
}
.header {
margin-bottom: 36px;
}
.header h1 {
font-size: 22px;
font-weight: 600;
letter-spacing: -0.02em;
color: var(--text);
margin-bottom: 8px;
}
.header h1::after {
content: '';
display: block;
width: 24px;
height: 2px;
background: var(--accent);
margin-top: 10px;
}
.header-meta {
font-size: 12px;
color: var(--text-muted);
margin-top: 10px;
}
.header-meta code {
background: var(--accent-surface);
padding: 2px 6px;
border-radius: 3px;
font-size: 11px;
color: var(--accent);
font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}
.header-meta .sep {
margin: 0 6px;
color: var(--text-faint);
}
.card {
background: var(--surface);
border: 1px solid var(--border);
border-radius: var(--radius);
padding: 24px;
margin-bottom: 16px;
transition: border-color var(--transition);
}
.card:hover {
border-color: #CCC8C0;
}
.card-title {
font-size: 11px;
font-weight: 600;
text-transform: uppercase;
letter-spacing: 0.1em;
color: var(--text-muted);
margin-bottom: 16px;
}
.btn {
display: inline-flex;
align-items: center;
justify-content: center;
padding: 9px 20px;
border: none;
border-radius: var(--radius);
font-size: 13px;
font-weight: 500;
letter-spacing: 0.02em;
cursor: pointer;
transition: background var(--transition), opacity var(--transition);
background: var(--accent);
color: #fff;
font-family: inherit;
}
.btn:hover { background: var(--accent-hover); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-danger { background: var(--red); }
.btn-danger:hover { background: #A55D5D; }
input, select {
padding: 8px 12px;
border: 1px solid var(--border);
border-radius: var(--radius);
font-size: 13px;
color: var(--text);
background: var(--surface);
transition: border-color var(--transition);
font-family: inherit;
}
input:focus, select:focus {
outline: none;
border-color: var(--accent);
}
.status {
margin-top: 12px;
padding: 10px 14px;
border-radius: var(--radius);
font-size: 13px;
line-height: 1.5;
animation: fadeIn 0.3s ease;
}
.status-success { background: var(--green-surface); color: var(--green); }
.status-error { background: var(--red-surface); color: var(--red); }
.status-info { background: var(--blue-surface); color: var(--blue); }
@keyframes fadeIn {
from { opacity: 0; transform: translateY(-4px); }
to { opacity: 1; transform: translateY(0); }
}
.backup-list { list-style: none; }
.backup-item {
display: flex;
justify-content: space-between;
align-items: center;
padding: 10px 0;
border-bottom: 1px solid var(--border-light);
font-size: 13px;
}
.backup-item:last-child { border-bottom: none; }
.backup-date {
color: var(--text);
font-size: 13px;
font-weight: 500;
}
.backup-filename {
color: var(--text-faint);
font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
font-size: 11px;
margin-top: 2px;
}
.backup-size {
color: var(--text-muted);
font-size: 12px;
white-space: nowrap;
}
.empty-state {
text-align: center;
padding: 24px;
color: var(--text-faint);
font-size: 13px;
}
.auto-config {
display: flex;
align-items: center;
gap: 8px;
flex-wrap: wrap;
}
.auto-config label {
font-size: 13px;
color: var(--text-muted);
}
.auto-status {
margin-top: 14px;
padding-top: 14px;
border-top: 1px solid var(--border-light);
font-size: 12px;
color: var(--text-muted);
line-height: 1.8;
}
.pulse {
display: inline-block;
width: 6px;
height: 6px;
border-radius: 50%;
background: var(--green);
margin-right: 6px;
vertical-align: middle;
animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
0%, 100% { opacity: 1; }
50% { opacity: 0.3; }
}
.warning-block {
font-size: 12px;
color: var(--red);
margin-bottom: 14px;
padding: 10px 14px;
background: var(--red-surface);
border-radius: var(--radius);
border-left: 3px solid var(--red);
line-height: 1.5;
}
.restore-row {
display: flex;
align-items: center;
gap: 8px;
}
@media (max-width: 480px) {
.container { padding: 24px 16px 40px; }
.card { padding: 18px; }
.auto-config { flex-direction: column; align-items: stretch; }
.restore-row { flex-direction: column; align-items: stretch; }
.restore-row .btn { width: 100%; }
}
</style>
</head>
<body>
<div class="top-bar"></div>
<div class="container">
<header class="header">
<h1>Memos Backup</h1>
<div class="header-meta">
源 <code>{{ source_path }}</code><span class="sep">→</span>目标 <code>{{ backup_dataset }}</code>
</div>
</header>
<section class="card">
<div class="card-title">手动备份</div>
<button class="btn" id="backupBtn" onclick="manualBackup()">执行备份</button>
<div id="backupResult"></div>
</section>
<section class="card">
<div class="card-title">自动备份</div>
<div class="auto-config">
<label>间隔</label>
<input type="number" id="intervalInput" value="{{ auto_interval_value }}" min="1" style="width:80px;">
<select id="intervalUnit">
<option value="minute" {% if auto_interval_unit == 'minute' %}selected{% endif %}>分钟</option>
<option value="hour" {% if auto_interval_unit == 'hour' %}selected{% endif %}>小时</option>
<option value="day" {% if auto_interval_unit == 'day' %}selected{% endif %}>天</option>
</select>
<button class="btn" onclick="setAutoInterval()">保存</button>
</div>
<div id="intervalResult"></div>
<div class="auto-status" id="autoStatus">加载中...</div>
</section>
<section class="card">
<div class="card-title">备份记录</div>
<div id="backupList">
<div class="empty-state">加载中...</div>
</div>
</section>
<section class="card">
<div class="card-title">恢复数据</div>
<div class="warning-block">恢复操作将覆盖当前数据，此操作不可逆。</div>
<div class="restore-row">
<select id="restoreSelect" style="flex:1;">
<option value="">选择备份文件</option>
</select>
<button class="btn btn-danger" onclick="manualRestore()">恢复</button>
</div>
<div id="restoreResult"></div>
</section>
</div>
<script>
function escapeHtml(str) {
var div = document.createElement('div');
div.textContent = str;
return div.innerHTML;
}
function formatDate(dateStr) {
var parts = dateStr.split('_');
if (parts.length !== 2) return dateStr;
var d = parts[0], t = parts[1];
if (d.length !== 8 || t.length !== 6) return dateStr;
return d.substr(0,4) + '-' + d.substr(4,2) + '-' + d.substr(6,2) + ' ' +
t.substr(0,2) + ':' + t.substr(2,2) + ':' + t.substr(4,2);
}
function formatInterval(seconds) {
if (seconds >= 86400 && seconds % 86400 === 0) return (seconds / 86400) + ' 天';
if (seconds >= 3600 && seconds % 3600 === 0) return (seconds / 3600) + ' 小时';
return Math.round(seconds / 60) + ' 分钟';
}
function formatSize(bytes) {
if (!bytes) return '--';
if (bytes < 1024) return bytes + ' B';
if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(1) + ' KB';
return (bytes / 1024 / 1024).toFixed(2) + ' MB';
}
async function loadAutoStatus() {
try {
var response = await fetch('/api/auto_status');
var data = await response.json();
var el = document.getElementById('autoStatus');
if (data.enabled) {
el.innerHTML = '<span class="pulse"></span>已启用 · 间隔 ' + formatInterval(data.interval_seconds) +
'<br>下次备份 ' + escapeHtml(data.next_backup) +
(data.last_backup ? '<br>上次备份 ' + escapeHtml(data.last_backup) : '');
} else {
el.innerHTML = '未启用';
}
} catch (e) {
document.getElementById('autoStatus').innerHTML = '状态获取失败';
}
}
async function setAutoInterval() {
var value = document.getElementById('intervalInput').value;
var unit = document.getElementById('intervalUnit').value;
var seconds = parseInt(value);
if (isNaN(seconds) || seconds < 1) {
alert('请输入有效的数字');
return;
}
if (unit === 'hour') seconds *= 3600;
if (unit === 'day') seconds *= 86400;
if (seconds < 60) {
alert('间隔不能小于 1 分钟');
return;
}
var response = await fetch('/api/set_interval', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ interval_seconds: seconds })
});
var data = await response.json();
var el = document.getElementById('intervalResult');
if (data.success) {
el.innerHTML = '<div class="status status-success">设置已保存</div>';
loadAutoStatus();
setTimeout(function() { el.innerHTML = ''; }, 3000);
} else {
el.innerHTML = '<div class="status status-error">' + escapeHtml(data.error) + '</div>';
}
}
async function refreshBackupList() {
try {
var response = await fetch('/api/backups');
var backups = await response.json();
var listDiv = document.getElementById('backupList');
var select = document.getElementById('restoreSelect');
if (backups.length === 0) {
listDiv.innerHTML = '<div class="empty-state">暂无备份记录</div>';
select.innerHTML = '<option value="">暂无备份</option>';
return;
}
var html = '<ul class="backup-list">';
select.innerHTML = '<option value="">选择备份文件</option>';
for (var i = 0; i < backups.length; i++) {
var b = backups[i];
var dateFormatted = formatDate(b.date);
var sizeFormatted = formatSize(b.size);
html += '<li class="backup-item">' +
'<div><div class="backup-date">' + escapeHtml(dateFormatted) + '</div>' +
'<div class="backup-filename">' + escapeHtml(b.name) + '</div></div>' +
'<div class="backup-size">' + sizeFormatted + '</div></li>';
select.innerHTML += '<option value="' + escapeHtml(b.name) + '">' +
escapeHtml(dateFormatted) + ' (' + sizeFormatted + ')</option>';
}
html += '</ul>';
listDiv.innerHTML = html;
} catch (e) {
document.getElementById('backupList').innerHTML = '<div class="empty-state">加载失败</div>';
}
}
async function manualBackup() {
var btn = document.getElementById('backupBtn');
var resultDiv = document.getElementById('backupResult');
btn.disabled = true;
btn.textContent = '备份中...';
resultDiv.innerHTML = '<div class="status status-info">正在备份，请稍候...</div>';
try {
var response = await fetch('/api/backup', { method: 'POST' });
var data = await response.json();
if (data.success) {
resultDiv.innerHTML = '<div class="status status-success">备份完成 · ' + escapeHtml(data.backup_name || '') + '</div>';
refreshBackupList();
loadAutoStatus();
} else {
resultDiv.innerHTML = '<div class="status status-error">' + escapeHtml(data.error) + '</div>';
}
} catch (e) {
resultDiv.innerHTML = '<div class="status status-error">请求失败</div>';
}
btn.disabled = false;
btn.textContent = '执行备份';
}
async function manualRestore() {
var select = document.getElementById('restoreSelect');
var backupName = select.value;
if (!backupName) {
alert('请先选择一个备份');
return;
}
if (!confirm('确认恢复？当前数据将被覆盖。')) return;
var resultDiv = document.getElementById('restoreResult');
resultDiv.innerHTML = '<div class="status status-info">正在恢复，请稍候...</div>';
try {
var response = await fetch('/api/restore', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ backup_name: backupName })
});
var data = await response.json();
if (data.success) {
resultDiv.innerHTML = '<div class="status status-success">恢复完成</div>';
} else {
resultDiv.innerHTML = '<div class="status status-error">' + escapeHtml(data.error) + '</div>';
}
} catch (e) {
resultDiv.innerHTML = '<div class="status status-error">请求失败</div>';
}
}
refreshBackupList();
loadAutoStatus();
setInterval(refreshBackupList, 30000);
setInterval(loadAutoStatus, 60000);
</script>
</body>
</html>
"""
def get_backup_files():
try:
api = HfApi()
repo_info = api.repo_info(repo_id=BACKUP_DATASET, repo_type="dataset")
siblings = getattr(repo_info, 'siblings', [])
backups = []
for f in siblings:
if f.rfilename.startswith("backup_") and f.rfilename.endswith(".tar.gz"):
backups.append({
"name": f.rfilename,
"date": f.rfilename.replace("backup_", "").replace(".tar.gz", ""),
"size": getattr(f, 'size', 0) or 0
})
backups.sort(key=lambda x: x["name"], reverse=True)
return backups
except Exception as e:
print(f"获取备份列表失败: {e}")
return []
def create_backup():
global _last_backup_time
timestamp = datetime.datetime.now().strftime("%Y%m%d_%H%M%S")
backup_name = f"backup_{timestamp}.tar.gz"
backup_path = f"/tmp/{backup_name}"
try:
with tarfile.open(backup_path, "w:gz") as tar:
tar.add(SOURCE_MOUNT, arcname="memos_data")
api = HfApi()
api.upload_file(
path_or_fileobj=backup_path,
path_in_repo=backup_name,
repo_id=BACKUP_DATASET,
repo_type="dataset"
)
os.remove(backup_path)
_last_backup_time = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
return {"success": True, "backup_name": backup_name}
except Exception as e:
return {"success": False, "error": str(e)}
def safe_extract_tar(tar, path):
for member in tar.getmembers():
if member.name.startswith('/') or '..' in member.name.split('/'):
raise ValueError(f"不安全的路径: {member.name}")
member_path = os.path.join(path, member.name)
if not os.path.abspath(member_path).startswith(os.path.abspath(path) + os.sep):
raise ValueError(f"不安全的路径: {member.name}")
tar.extractall(path)
@app.route('/')
def index():
interval = auto_interval_seconds
if interval % 86400 == 0:
interval_value = interval // 86400
interval_unit = 'day'
elif interval % 3600 == 0:
interval_value = interval // 3600
interval_unit = 'hour'
else:
interval_value = interval // 60
interval_unit = 'minute'
return render_template_string(
HTML_TEMPLATE,
source_path=SOURCE_MOUNT,
backup_dataset=BACKUP_DATASET,
auto_interval_value=interval_value,
auto_interval_unit=interval_unit,
last_backup_time=_last_backup_time or '尚未备份'
)
@app.route('/api/backups')
def list_backups():
return jsonify(get_backup_files())
@app.route('/api/backup', methods=['POST'])
def do_backup():
return jsonify(create_backup())
@app.route('/api/restore', methods=['POST'])
def do_restore():
data = request.json
backup_name = data.get('backup_name')
if not backup_name:
return jsonify({"success": False, "error": "未指定备份文件"})
try:
api = HfApi()
backup_path = f"/tmp/{backup_name}"
api.hf_hub_download(
repo_id=BACKUP_DATASET,
filename=backup_name,
local_dir="/tmp",
repo_type="dataset"
)
with tarfile.open(backup_path, "r:gz") as tar:
safe_extract_tar(tar, "/tmp/restore")
for item in os.listdir("/tmp/restore/memos_data"):
src = f"/tmp/restore/memos_data/{item}"
dst = f"{SOURCE_MOUNT}/{item}"
if os.path.isdir(src):
if os.path.exists(dst):
shutil.rmtree(dst)
shutil.copytree(src, dst)
else:
shutil.copy2(src, dst)
os.remove(backup_path)
shutil.rmtree("/tmp/restore", ignore_errors=True)
return jsonify({"success": True, "message": f"已从 {backup_name} 恢复"})
except Exception as e:
return jsonify({"success": False, "error": str(e)})
@app.route('/api/set_interval', methods=['POST'])
def set_interval():
global auto_interval_seconds
data = request.json
new_interval = data.get('interval_seconds')
if not new_interval or new_interval < 60:
return jsonify({"success": False, "error": "间隔不能小于 60 秒"})
auto_interval_seconds = new_interval
save_config()
restart_auto_backup()
return jsonify({"success": True, "message": f"自动备份间隔已设为 {new_interval // 60} 分钟"})
@app.route('/api/auto_status')
def auto_status():
next_time = datetime.datetime.now() + datetime.timedelta(seconds=auto_interval_seconds)
return jsonify({
"enabled": True,
"interval_seconds": auto_interval_seconds,
"next_backup": next_time.strftime("%Y-%m-%d %H:%M:%S"),
"last_backup": _last_backup_time
})
def auto_backup_worker():
while not _auto_stop_event.is_set():
if _auto_stop_event.wait(timeout=auto_interval_seconds):
break
with app.app_context():
result = create_backup()
print(f"[{datetime.datetime.now()}] 自动备份: {result}")
def start_auto_backup_thread():
global _auto_thread
_auto_stop_event.clear()
_auto_thread = threading.Thread(target=auto_backup_worker, daemon=True)
_auto_thread.start()
def restart_auto_backup():
_auto_stop_event.set()
if _auto_thread and _auto_thread.is_alive():
_auto_thread.join(timeout=5)
start_auto_backup_thread()
load_config()
start_auto_backup_thread()
if __name__ == '__main__':
app.run(host='0.0.0.0', port=7860)
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