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refactor: extract file serve to own module

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This commit is contained in:
Julien Oculi 2024-06-04 18:16:58 +02:00
parent ed408be3fc
commit da0a668285
2 changed files with 24 additions and 18 deletions
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20
server.ts
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@ -1,7 +1,6 @@
import { contentType } from '@std/media-types'
import { extname } from '@std/path'
import { getBaseUrl, getSourceUrl } from './src/url_utils.ts'
import { toUser, toUserDomain } from './src/user_utils.ts'
import { serveFile } from './src/serve_file.ts'
Deno.serve({ port: Number(Deno.env.get('PORT') ?? 8000) }, async (req) => {
const reqUrl = new URL(req.url)
@ -21,20 +20,5 @@ Deno.serve({ port: Number(Deno.env.get('PORT') ?? 8000) }, async (req) => {
const fileUrl = getSourceUrl(filePath, baseUrl)
// Get source and mime type
const response = await fetch(fileUrl)
const ext = extname(fileUrl.pathname)
const mimeType = contentType(ext) ?? 'text/plain; charset=utf-8' // Assume plain text as default.
if (response.ok) {
// Update content-type if not bin file
const headers = new Headers(response.headers)
if (headers.get('Content-Type') !== 'application/octet-stream') {
headers.set('Content-Type', mimeType)
}
// Stream original file to user
return new Response(response.body, { headers })
}
return response
return serveFile(fileUrl)
})

22
src/serve_file.ts Normal file
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@ -0,0 +1,22 @@
import { extname } from '@std/path'
import { contentType } from '@std/media-types'
export async function serveFile(fileUrl: URL): Promise<Response> {
// Get source and mime type
const response = await fetch(fileUrl)
const ext = extname(fileUrl.pathname)
const mimeType = contentType(ext) ?? 'text/plain; charset=utf-8' // Assume plain text as default.
if (response.ok) {
// Update content-type if not bin file
const headers = new Headers(response.headers)
if (headers.get('Content-Type') !== 'application/octet-stream') {
headers.set('Content-Type', mimeType)
}
// Stream original file to user
return new Response(response.body, { headers })
}
// Return raw error if status !== 2XX
return response
}