130 lines
4.0 KiB
Markdown
130 lines
4.0 KiB
Markdown
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# 几个坑
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* Telegram Bot API 提供了两种方式， webhook 和 long polling，目前项目只支持 webhook 方式。
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* webhook 方式必须要用HTTPS 也就是需要准备**个人域名**和**一个有效证书**
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* 证书一定要单独域名证书(泛域名证书不能用)
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# 原理/思路
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TG创建bot，要起一个服务支持BOT的功能， 所以需要配置webhook 让tg 和服务器建立连接。webhook 需要有HTTPS的外网域名并且修改DNS指向你所配置的服务器IP，这样就能保证TG的请求可以顺利到达并且验证BOT。
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在服务器内部如果如果是单BOT， 可以直接用nodje 配合 PM2 直接起服务,然后修改server.js端口号443。 如果服务器上有多个服务，那么就需要用反向代理，反代简单说就是一个服务+映射规则 (ngnix或者apache后者其他都可以) 侦听80或者443端口，如果有指定的映射请求， 就转发到内部映射的各个服务。
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例如
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```
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aaa.domain.com <=> locahost:3001
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bbb.domain.com <=> locahost:3002
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domain.com/ccc <=> localhost:3003
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```
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# 步骤
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1. 需要去tg 创建一个bot，会得到token 和bot的tgurl
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2. BOT服务：
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1. 服务器上clone 项目，安装node, npm install
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2. 如果需要配置多个BOT, clone不同目录, server.js里修改配置port，和config.js
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3. 安装PM2，在每个bot目录下 PM2 start server.js
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4. ``` pm2 status``` 确认服务跑起来了
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1. 如果没起来， 查log文件（见底部）
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5. curl 检查本地连接, curl 检查远端连接， not found 就对了
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3. 外部连接
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1. 修改DNS，我是用cloudflare 把添加A record， 直接把静态IP 绑定
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2. 绑定以后， 本地开个terminal, ping 刚添加域名，直到解析的IP是你绑定的，这步确保连接上是畅通的
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4. apache2开启SSL和反代
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1. 复制证书到任意位置
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2. 运行底部命令
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3. /etc/apache2/sites-available 下找到默认的.conf，或者自己建个conf也行
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4. 修改底部配置信息
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5. 保存重启 ```service apache2 restart```
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5. 剩下的就是配置和检查webhook，这里面也有不少坑，在反代配置文件部分。。记不清了。。
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6. 如果一切顺利 /help 会弹出目录
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```
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pm2 部分
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tail -200 ~/.pm2/logs/server-error.log
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tail -200 ~/.pm2/logs/server-out.log
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curl "localhost:23333"
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curl "domain:23333"
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SSL+反代
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sudo a2enmod ssl
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sudo a2enmod proxy
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sudo a2enmod proxy_balancer
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sudo a2enmod proxy_http
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/etc/apache2/sites-available/xxx.conf
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<VirtualHost *:443>
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SSLEngine on
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SSLProtocol all
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SSLCertificateFile {{CERT_DIR}}/{{domain.cer}}
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SSLCertificateKeyFile {{CERT_DIR}}/{{domain.key}}
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SSLCACertificateFile {{CERT_DIR}}/{{domain.ca.cer}}
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ServerName {{domain}}
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ProxyRequests Off
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ProxyPreserveHost On
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ProxyVia Full
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<Proxy *>
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Require all granted
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</Proxy>
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# 这里我用的是子目录映射方式。懒得再申请一个证书。。domain.com/ccc <=> localhost:3003
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ProxyPass /{{bot1url}}/ http://127.0.0.1:23334/ # bot1
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ProxyPassReverse /{{bot1url}}/ http://127.0.0.1:23334/ # bot1
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ProxyPass /{{bot2url}}/ http://127.0.0.1:23333/ # bot2
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ProxyPassReverse /{{bot2url}}/ http://127.0.0.1:23333/ # bot2
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</VirtualHost>
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something for verify and DEBUG
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Apache command:
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service apache2 restart
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service apache2 stop
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service apache2 status
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service apache2 reload
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tail -100 /var/log/apache2/error.log
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验证一下SSL:
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https://www.ssllabs.com/ssltest/analyze.html 确保Trusted和In trust store是绿的（反正我这两个绿的就TG就能找到的到）
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SET webhook
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curl -F "url=https://{{domain}}/{{bot1url}}/api/gdurl/tgbot" 'https://api.telegram.org/bot{{BOT_TOKEN}}/setWebhook'
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delete webhook
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curl -F "url=" https://api.telegram.org/bot{{BOT_TOKEN}}/setWebhook
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check webhook
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curl "https://api.telegram.org/bot{{BOT_TOKEN}}/getWebhookInfo"
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```
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# Reference Link
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https://core.telegram.org/bots
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https://core.telegram.org/bots/api
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https://www.jianshu.com/p/ca804497afa0
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