69 lines
2.4 KiB
Markdown
69 lines
2.4 KiB
Markdown
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# 特定内容推送插件开发
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| ID | Creation Date | Assignee | Status |
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|----|----------------|----------|--------|
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| OMPUB-740 | 2022-12-07T11:13:49.000+0800 | 冯伟浩 | 完成 |
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---
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对于命中代理策略条件的HTTP(S)流量调用LUA插件，插件向当前数据发起方（例如命中数据包方向为C2S,则插件向C端推送内容）推送用户预定义的html文件（用户提供html文件，文件中包含http header和http body），并对应答内容中特定字符串进行替换，具体替换规则如下：
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* TTTIIIMMM：LUA脚本获取当前服务器时间，以HTTP协议date格式替换；
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* LLLEEENNN：LUA脚本获取当前应答内容长度，以HTTP协议content_length格式替换；
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* UUURRRIII：LUA脚本按照算法计算随机字符串。每次流量命中后，实时计算替换；
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!screenshot-1.png|thumbnail!
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* UUURRRLLL：用户配置的下载服务器地址，LUA脚本直接替换即可
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用户如何在LUA插件中进行配置：目前暂定将以上两类配置信息直接填充到LUA脚本中，具体格式研发可以提出统一要求。
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**liuyang** commented on *2022-12-07T11:17:34.846+0800*:
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关于随机字符串简单说明：
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* 8位随机字符串：8个数字，例如12345678
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* 源IP：主机序
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* 数字加：加法求和
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* 转换字符串：从右向左取8位；比如0123456789，则取23456789八个字符
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* Pri-key：固定字符串，直接拼接
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* Md5:md5sum()计算
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---
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**gitlab** commented on *2022-12-19T14:43:25.552+0800*:
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[冯伟浩|https://git.mesalab.cn/fengweihao] mentioned this issue in [a commit|https://git.mesalab.cn/tango/tfe/-/commit/34be0889e15a77ab157f0f4f888f691e06062424] of [TSG Appliance / tfe|https://git.mesalab.cn/tango/tfe] on branch [feature-OMPUB-740|https://git.mesalab.cn/tango/tfe/-/tree/feature-OMPUB-740]:{quote}OMPUB-740 Lua插件支持获取五元组和重写HTTP头信息{quote}
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---
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**liuyang** commented on *2022-12-21T17:29:24.730+0800*:
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随机字符串联调说明：
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联调服务器ip：43.156.12.49；登陆方式：root/z!PQ&p$X@Mux
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构造GET请求： http://ip/随机串/test.html
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能够成功获取test.html表示随机字符串校验通过。
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若无法获取文件，则可登陆服务器查看错误日志：/var/www；随机串校验脚本和error.log在/var/www/html
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---
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## Attachments
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**66375/http_resp_filter_by_lua.lua**
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---
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**33455/screenshot-1.png**
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---
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**33865/screenshot-2.png**
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---
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