Skip to content

Unquote and unescape Content-Type: charset [RFC7230] #267

@forthrin

Description

@forthrin
uri = URI('http://127.0.0.1:8080')
http = Net::HTTP.new(uri.hostname, uri.port)
http.response_body_encoding = true
http.send_request('GET', uri.request_uri)
/opt/homebrew/lib/ruby/gems/4.0.0/gems/net-http-0.9.1/lib/net/http/response.rb:381:in 'String#force_encoding': unknown encoding name - "UTF-8" (ArgumentError)
    @body.force_encoding(enc) if enc
	from /opt/homebrew/lib/ruby/gems/4.0.0/gems/net-http-0.9.1/lib/net/http/response.rb:381:in 'Net::HTTPResponse#read_body'
$ curl -I http://127.0.0.1:8080/
Content-Type: text/html; charset="UTF-8"
Server: WEBrick/1.9.2 (Ruby/4.0.1/2026-01-13)

$ open https://www.rfc-editor.org/rfc/rfc7230#section-3.2.6

[3.2.6](https://www.rfc-editor.org/rfc/rfc7230#section-3.2.6). Field Value Components
quoted-string = DQUOTE *( qdtext / quoted-pair ) DQUOTE

$ git diff
diff --git a/lib/net/http/header.rb b/lib/net/http/header.rb
index 797a3be..fe026ae 100644
--- a/lib/net/http/header.rb
+++ b/lib/net/http/header.rb
@@ -762,3 +762,3 @@ module Net::HTTPHeader
       k, v = *param.split('=', 2)
-      result[k.strip] = v.strip
+      result[k.strip] = v.strip.gsub(/\A"(.*?)(?<!\\)"\z/) { $1.gsub(/\\(.)/, '\1') }.strip
     end
http.send_request('GET', uri.request_uri)
# #<Net::HTTPOK 200 OK readbody=true>

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions