Mirrors/coredns
1
0
Fork 0
mirror of https://github.com/coredns/coredns.git synced 2025-10-31 18:23:13 -04:00
Code Issues Packages Projects Releases Wiki Activity

DoH: Allow http as the protocol (#5762)

Browse Source 
This change avoids the hard coding of HTTPS, allowing flexibility in whether HTTP or HTTPS is used.

Signed-off-by: Sebastian Dahlgren <sebdah@fb.com>
This commit is contained in:
Sebastian Dahlgren
2023-03-03 15:44:38 +01:00
committed by GitHub
parent 03fb2fa747
commit 80b40c159e
2 changed files with 52 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
plugin/pkg/doh/doh.go
View File

@@ -6,6 +6,7 @@ import (
"fmt"
"io"
"net/http"
"strings"
"github.com/miekg/dns"
)
@@ -16,18 +17,30 @@ const MimeType = "application/dns-message"
// Path is the URL path that should be used.
const Path = "/dns-query"
// NewRequest returns a new DoH request given a method, URL (without any paths, so exclude /dns-query) and dns.Msg.
// NewRequest returns a new DoH request given a HTTP method, URL and dns.Msg.
//
// The URL should not have a path, so please exclude /dns-query. The URL will
// be prefixed with https:// by default, unless it's already prefixed with
// either http:// or https://.
func NewRequest(method, url string, m *dns.Msg) (*http.Request, error) {
buf, err := m.Pack()
if err != nil {
return nil, err
}
if !strings.HasPrefix(url, "http://") && !strings.HasPrefix(url, "https://") {
url = fmt.Sprintf("https://%s", url)
}
switch method {
case http.MethodGet:
b64 := base64.RawURLEncoding.EncodeToString(buf)
req, err := http.NewRequest(http.MethodGet, "https://"+url+Path+"?dns="+b64, nil)
req, err := http.NewRequest(
http.MethodGet,
fmt.Sprintf("%s%s?dns=%s", url, Path, b64),
nil,
)
if err != nil {
return req, err
}
@@ -37,7 +50,11 @@ func NewRequest(method, url string, m *dns.Msg) (*http.Request, error) {
return req, nil
case http.MethodPost:
req, err := http.NewRequest(http.MethodPost, "https://"+url+Path+"?bla=foo:443", bytes.NewReader(buf))
req, err := http.NewRequest(
http.MethodPost,
fmt.Sprintf("%s%s?bla=foo:443", url, Path),
bytes.NewReader(buf),
)
if err != nil {
return req, err
}