fix: Improve Content-Disposition parsing to support Unicode

package.json

@@ -17,6 +17,7 @@
  "devDependencies": {
  "@stylistic/eslint-plugin": "^1.5.1",
  "@types/better-sqlite3": "^7.6.8",
+ "@types/content-disposition": "^0.5.8",
  "@types/mime-types": "^2.1.4",
  "@types/node": "^20.10.5",
  "@typescript-eslint/eslint-plugin": "^6.16.0",
@@ -33,6 +34,7 @@
  "@mtcute/node": "^0.15.1",
  "@t3-oss/env-core": "^0.7.1",
  "better-sqlite3": "^9.3.0",
+ "content-disposition": "^0.5.4",
  "dotenv": "^16.3.1",
  "drizzle-orm": "^0.29.3",
  "mime-types": "^2.1.35",

src/core/data/cobalt.ts

@@ -1,6 +1,7 @@
 import { z } from "zod"
 import { Text, literal, translatable } from "#core/utils/text"
 import { error, ok, Result } from "#core/utils/result"
+import { parse as parseContentDisposition } from "content-disposition"
 
 const genericErrorSchema = z.object({
  status: z.literal("error"),
@@ -70,6 +71,14 @@ export const fetchMedia = async (
 
 // Stream
 
+const fileName = (header: string): string | undefined => {
+ try {
+ const contentDisposition = parseContentDisposition(header)
+ return contentDisposition.parameters.filename
+ } catch {
+ return undefined
+ }
+}
 export const fetchStream = async (url: string) => {
  const data = await fetch(url, {
  headers: [
@@ -87,8 +96,7 @@ export const fetchStream = async (url: string) => {
  }
 
  const contentDisposition = data.headers.get("Content-Disposition")
- const match = contentDisposition && /.*filename="([^"]+)".*/.exec(contentDisposition)
- const filename = (match && match[1]) ?? undefined
+ const filename = contentDisposition ? fileName(contentDisposition) : undefined
 
  const buffer = Buffer.from(await data.arrayBuffer())
  if (!buffer.length)