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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| import type { IncomingMessage } from 'http' | ||
| import type { SizeLimit } from 'next/types' | ||
|
|
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| import { parse } from 'next/dist/compiled/content-type' | ||
| import isError from '../../../lib/is-error' | ||
| import { ApiError } from '../index' | ||
|
|
||
| /** | ||
| * Parse `JSON` and handles invalid `JSON` strings | ||
| * @param str `JSON` string | ||
| */ | ||
| function parseJson(str: string): object { | ||
| if (str.length === 0) { | ||
| // special-case empty json body, as it's a common client-side mistake | ||
| return {} | ||
| } | ||
|
|
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| try { | ||
| return JSON.parse(str) | ||
| } catch (e) { | ||
| throw new ApiError(400, 'Invalid JSON') | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Parse incoming message like `json` or `urlencoded` | ||
| * @param req request object | ||
| */ | ||
| export async function parseBody( | ||
| req: IncomingMessage, | ||
| limit: SizeLimit | ||
| ): Promise<any> { | ||
| let contentType | ||
| try { | ||
| contentType = parse(req.headers['content-type'] || 'text/plain') | ||
| } catch { | ||
| contentType = parse('text/plain') | ||
| } | ||
| const { type, parameters } = contentType | ||
| const encoding = parameters.charset || 'utf-8' | ||
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| let buffer | ||
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| try { | ||
| const getRawBody = | ||
| require('next/dist/compiled/raw-body') as typeof import('next/dist/compiled/raw-body') | ||
| buffer = await getRawBody(req, { encoding, limit }) | ||
| } catch (e) { | ||
| if (isError(e) && e.type === 'entity.too.large') { | ||
| throw new ApiError(413, `Body exceeded ${limit} limit`) | ||
| } else { | ||
| throw new ApiError(400, 'Invalid body') | ||
| } | ||
| } | ||
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| const body = buffer.toString() | ||
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| if (type === 'application/json' || type === 'application/ld+json') { | ||
| return parseJson(body) | ||
| } else if (type === 'application/x-www-form-urlencoded') { | ||
| const qs = require('querystring') | ||
| return qs.decode(body) | ||
| } else { | ||
| return body | ||
| } | ||
| } |
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