1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
| require('dotenv').config();
const express = require('express');
const cors = require('cors');
const path = require('path');
const axios = require('axios');
const app = express();
const PORT = process.env.PORT || 3000;
// 中间件配置
app.use(cors());
app.use(express.json());
app.use(express.static('public'));
// 缓存机制let cachedPosts = [];
let lastFetchTime = 0;
const CACHE_DURATION = parseInt(process.env.CACHE_DURATION) || 300000;
/**
* 获取 Telegram 频道内容
* 支持两种API方式：getChatHistory 和 getUpdates
*/async function fetchTelegramPosts() {
const BOT_TOKEN = process.env.BOT_TOKEN;
const CHANNEL_ID = process.env.CHANNEL_ID;
if (!BOT_TOKEN || !CHANNEL_ID) {
throw new Error('请配置 BOT_TOKEN 和 CHANNEL_ID 环境变量');
}
try {
console.log('正在从 Telegram 频道获取内容...');
// 方法1: 使用 getChatHistory APItry {
const url = `https://api.telegram.org/bot${BOT_TOKEN}/getChatHistory`;
const response = await axios.get(url, {
params: {
chat_id: CHANNEL_ID,
limit: 20
},
timeout: 10000
});
if (response.data.ok && response.data.result) {
return processBotAPIData(response.data.result);
}
} catch (error) {
console.log('getChatHistory 失败:', error.message);
}
// 方法2: 回退到 getUpdates APItry {
const url = `https://api.telegram.org/bot${BOT_TOKEN}/getUpdates`;
const response = await axios.get(url, {
timeout: 10000
});
if (response.data.ok && response.data.result) {
return processGetUpdatesData(response.data.result);
}
} catch (error) {
console.log('getUpdates 失败:', error.message);
}
throw new Error('所有 API 方法都失败了');
} catch (error) {
console.error('获取 Telegram 内容失败:', error.message);
throw error;
}
}
/**
* 处理 getChatHistory 返回的数据
*/function processBotAPIData(messages) {
const posts = [];
messages.forEach((item) => {
const message = item.message || item.channel_post;
if (!message) return;
const post = {
id: message.message_id,
text: message.text || message.caption || '(无文字内容)',
time: new Date(message.date * 1000).toLocaleString('zh-CN', {
year: 'numeric',
month: '2-digit',
day: '2-digit',
hour: '2-digit',
minute: '2-digit',
hour12: false
}),
image: null
};
// 处理图片消息if (message.photo && message.photo.length > 0) {
const photo = message.photo[message.photo.length - 1];
post.image = `https://api.telegram.org/bot${process.env.BOT_TOKEN}/getFile?file_id=${photo.file_id}`;
}
// 处理文档消息if (message.document) {
post.document = message.document.file_name;
}
posts.push(post);
});
return posts.sort((a, b) => b.id - a.id);
}
/**
* 处理 getUpdates 返回的数据
*/function processGetUpdatesData(updates) {
const posts = [];
updates.forEach((update) => {
const message = update.channel_post;
if (!message) return;
const post = {
id: message.message_id,
text: message.text || message.caption || '(无文字内容)',
time: new Date(message.date * 1000).toLocaleString('zh-CN', {
year: 'numeric',
month: '2-digit',
day: '2-digit',
hour: '2-digit',
minute: '2-digit',
hour12: false
}),
image: null
};
// 标记图片消息if (message.photo && message.photo.length > 0) {
post.hasImage = true;
post.image = `图片消息 ID: ${message.message_id}`;
}
posts.push(post);
});
return posts.sort((a, b) => b.id - a.id);
}
// API 路由 - 获取文章列表
app.get('/api/posts', async (req, res) => {
try {
const now = Date.now();
// 检查缓存是否过期if (now - lastFetchTime > CACHE_DURATION || cachedPosts.length === 0) {
console.log('缓存过期，重新获取数据...');
cachedPosts = await fetchTelegramPosts();
lastFetchTime = now;
}
res.json({
ok: true,
channel: 'Kadriyeblog',
posts: cachedPosts,
count: cachedPosts.length,
cached: lastFetchTime
});
} catch (error) {
console.error('API 错误:', error.message);
res.status(500).json({
ok: false,
error: error.message,
posts: cachedPosts.length > 0 ? cachedPosts : []
});
}
});
// 手动刷新缓存
app.post('/api/refresh', async (req, res) => {
try {
cachedPosts = await fetchTelegramPosts();
lastFetchTime = Date.now();
res.json({
ok: true,
message: '缓存刷新成功',
postsCount: cachedPosts.length
});
} catch (error) {
res.status(500).json({
ok: false,
error: error.message
});
}
});
// 健康检查接口
app.get('/api/health', (req, res) => {
res.json({
ok: true,
status: 'running',
cachedPosts: cachedPosts.length,
lastFetch: new Date(lastFetchTime).toISOString(),
environment: process.env.NODE_ENV
});
});
// 提供前端页面
app.get('/', (req, res) => {
res.sendFile(path.join(__dirname, 'public', 'index.html'));
});
// 启动服务器
app.listen(PORT, () => {
console.log(`🚀 Telegram Blog 服务器已启动`);
console.log(`📍 访问地址: <http://localhost>:${PORT}`);
console.log(`📱 频道: Kadriyeblog`);
console.log(`💾 环境: ${process.env.NODE_ENV || 'development'}`);
// 启动时预加载数据fetchTelegramPosts().then(posts => {
cachedPosts = posts;
lastFetchTime = Date.now();
console.log(`✅ 初始数据加载完成，共 ${posts.length} 篇文章`);
}).catch(error => {
console.log('❌ 初始数据加载失败:', error.message);
});
});
// 优雅关闭处理
process.on('SIGINT', () => {
console.log('\\n👋 正在关闭服务器...');
process.exit(0);
});
|