From 7589d4d7c4a7c95298268eb8bea0e808feb0c6a9 Mon Sep 17 00:00:00 2001
From: zfx <502545703@qq.com>
Date: Wed, 20 May 2020 02:22:26 +0800
Subject: fix(multipart): fix error when parsing file name in utf8 format
 (#5428)

---
 std/textproto/mod.ts | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'std/textproto')

diff --git a/std/textproto/mod.ts b/std/textproto/mod.ts
index 9b843e5b1..48bbed8bf 100644
--- a/std/textproto/mod.ts
+++ b/std/textproto/mod.ts
@@ -8,6 +8,9 @@ import { charCode } from "../io/util.ts";
 import { concat } from "../bytes/mod.ts";
 import { decode } from "../encoding/utf8.ts";
 
+// FROM https://github.com/denoland/deno/blob/b34628a26ab0187a827aa4ebe256e23178e25d39/cli/js/web/headers.ts#L9
+const invalidHeaderCharRegex = /[^\t\x20-\x7e\x80-\xff]/g;
+
 function str(buf: Uint8Array | null | undefined): string {
   if (buf == null) {
     return "";
@@ -102,7 +105,10 @@ export class TextProtoReader {
       ) {
         i++;
       }
-      const value = str(kv.subarray(i));
+      const value = str(kv.subarray(i)).replace(
+        invalidHeaderCharRegex,
+        encodeURI
+      );
 
       // In case of invalid header we swallow the error
       // example: "Audio Mode" => invalid due to space in the key
-- 
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