# 请求体重写

Surge 可以重写 HTTP 请求或响应的请求体，使用正则表达式替换原始内容。示例：

```ini
[Body Rewrite]
http-request ^http(s)?://example\.com value abc
http-response ^http(s)?://example\.com documents Surge
```

### 语法

每行包含一条重写规则，参数之间以空格分隔，并以 `http-request` 或 `http-response` 开头。第二个参数是用于匹配生效 URL 的正则表达式。第三个参数是用于替换的正则表达式，第四个参数是替换的内容。

`http-response ^https?://example\.com/ regex replacement`

允许在后面继续添加正则表达式和替换内容，以进行连续替换。

```ini
http-response ^https?://example\.com/ regex1 replacement1 regex2 replacement2
http-response ^https?://example\.com/ regex1 replacement1 regex2 replacement2 regex3 replacement3
…
```

1. 如果一个请求匹配到多个请求体重写规则，它们将被按顺序执行。
2. 即使原始请求不包含请求体，仍然可以通过请求体重写生成新内容，例如使用 `^$` 表达式。

### JQ 请求体重写 iOS 5.14.0+ Mac 5.9.0+

你可以使用 JQ 表达式来操作 JSON 请求体。

```ini
http-request-jq url-pattern jq-expexpression
http-response-jq url-pattern jq-expexpression
```

例如：

```ini
http-response-jq ^http://httpbingo.org/anything '.headers |= with_entries(select(.key | test("^X-") | not))'
```


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://surge.mitsea.com/http-processing/body-rewrite.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.