feat(file): ensure filename

packages/core/src/index.ts

@@ -13,6 +13,7 @@ declare module 'cordis' {
   }
 
   interface Events {
+    'http/config'(config: HTTP.Config): void
     'http/fetch-init'(init: RequestInit, config: HTTP.Config): void
     'http/websocket-init'(init: ClientOptions, config: HTTP.Config): void
   }
@@ -139,8 +140,10 @@ export class HTTP extends Service {
   }
 
   resolveConfig(init?: HTTP.RequestConfig): HTTP.RequestConfig {
+    const caller = this[Context.current]
     let result = { headers: {}, ...this.config }
-    let intercept = this[Context.current][Context.intercept]
+    caller.emit('http/config', result)
+    let intercept = caller[Context.intercept]
     while (intercept) {
       result = HTTP.mergeConfig(result, intercept.http)
       intercept = Object.getPrototypeOf(intercept)

packages/file/package.json

@@ -1,7 +1,7 @@
 {
   "name": "undios-file",
   "description": "File support for undios",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "type": "module",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
@@ -51,6 +51,7 @@
     "plugin"
   ],
   "devDependencies": {
+    "@types/mime-db": "^1.43.5",
     "cordis": "^3.10.3"
   },
   "peerDependencies": {

packages/file/src/adapter/node.ts

@@ -10,6 +10,6 @@ export async function loadFile(url: string): Promise<FileResponse | undefined> {
   if (url.startsWith('file://')) {
     const data = await readFile(fileURLToPath(url))
     const result = await fromBuffer(data)
-    return { mime: result?.mime, name: basename(url), data }
+    return { mime: result?.mime, filename: basename(url), data }
   }
 }

packages/file/src/index.ts

@@ -2,6 +2,7 @@ import HTTP, {} from 'undios'
 import { loadFile, lookup } from 'undios-file/adapter'
 import { Context, z } from 'cordis'
 import { base64ToArrayBuffer } from 'cosmokit'
+import mimedb from 'mime-db'
 import { isLocalAddress } from './utils.ts'
 
 declare module 'undios' {
@@ -17,7 +18,7 @@ export interface FileConfig {
 
 export interface FileResponse {
   mime?: string
-  name?: string
+  filename: string
   data: ArrayBuffer
 }
 
@@ -31,13 +32,20 @@ export function apply(ctx: Context, config: Config) {
   ctx.provide('http.file')
   ctx.provide('http.local')
 
+  function createName(mime: string | undefined) {
+    let name = 'file'
+    const ext = mime && mimedb[mime]?.extensions?.[0]
+    if (ext) name += `.${ext}`
+    return name
+  }
+
   ctx['http.file'] = async function file(this: HTTP, url: string, options: FileConfig = {}): Promise<FileResponse> {
     const result = await loadFile(url)
     if (result) return result
     const capture = /^data:([\w/-]+);base64,(.*)$/.exec(url)
     if (capture) {
       const [, mime, base64] = capture
-      return { mime, data: base64ToArrayBuffer(base64) }
+      return { mime, data: base64ToArrayBuffer(base64), filename: createName(mime) }
     }
     const { headers, data, url: responseUrl } = await this<ArrayBuffer>(url, {
       method: 'GET',
@@ -46,7 +54,7 @@ export function apply(ctx: Context, config: Config) {
     })
     const mime = headers.get('content-type') ?? undefined
     const [, name] = responseUrl.match(/.+\/([^/?]*)(?=\?)?/)!
-    return { mime, name, data }
+    return { mime, filename: name, data }
   }
 
   ctx['http.local'] = async function isLocal(url: string) {