76 lines
3.3 KiB
Diff
76 lines
3.3 KiB
Diff
From: csagan5 <32685696+csagan5@users.noreply.github.com>
|
|
Date: Sat, 28 Apr 2018 08:30:26 +0200
|
|
Subject: Reduce HTTP headers in DoH requests to bare minimum
|
|
|
|
License: GPL-3.0-only - https://spdx.org/licenses/GPL-3.0-only.html
|
|
---
|
|
net/base/load_flags_list.h | 5 +++++
|
|
net/dns/dns_transaction.cc | 2 +-
|
|
net/url_request/url_request_http_job.cc | 8 ++++++--
|
|
3 files changed, 12 insertions(+), 3 deletions(-)
|
|
|
|
diff --git a/net/base/load_flags_list.h b/net/base/load_flags_list.h
|
|
--- a/net/base/load_flags_list.h
|
|
+++ b/net/base/load_flags_list.h
|
|
@@ -101,3 +101,8 @@ LOAD_FLAG(RESTRICTED_PREFETCH, 1 << 15)
|
|
// is considered privileged, and therefore this flag must only be set from a
|
|
// trusted process.
|
|
LOAD_FLAG(CAN_USE_RESTRICTED_PREFETCH, 1 << 16)
|
|
+// This load will not send Accept-Language or User-Agent headers, and not
|
|
+// advertise brotli encoding.
|
|
+// Used to comply with IETF (draft) DNS-over-HTTPS:
|
|
+// "Implementors SHOULD NOT set non-essential HTTP headers in DoH client requests."
|
|
+LOAD_FLAG(MINIMAL_HEADERS, 1 << 19)
|
|
diff --git a/net/dns/dns_transaction.cc b/net/dns/dns_transaction.cc
|
|
--- a/net/dns/dns_transaction.cc
|
|
+++ b/net/dns/dns_transaction.cc
|
|
@@ -445,7 +445,7 @@ class DnsHTTPAttempt : public DnsAttempt, public URLRequest::Delegate {
|
|
// avoid deadlock and enable the use of preconfigured IP addresses.
|
|
request_->SetSecureDnsPolicy(SecureDnsPolicy::kBootstrap);
|
|
request_->SetLoadFlags(request_->load_flags() | LOAD_DISABLE_CACHE |
|
|
- LOAD_BYPASS_PROXY);
|
|
+ LOAD_MINIMAL_HEADERS | LOAD_BYPASS_PROXY);
|
|
request_->set_allow_credentials(false);
|
|
request_->set_isolation_info(isolation_info);
|
|
}
|
|
diff --git a/net/url_request/url_request_http_job.cc b/net/url_request/url_request_http_job.cc
|
|
--- a/net/url_request/url_request_http_job.cc
|
|
+++ b/net/url_request/url_request_http_job.cc
|
|
@@ -314,6 +314,7 @@ void URLRequestHttpJob::OnGotFirstPartySetMetadata(
|
|
// fields in the referrer.
|
|
GURL referrer(request_->referrer());
|
|
|
|
+ if (!(request_info_.load_flags & LOAD_MINIMAL_HEADERS)) {
|
|
// Our consumer should have made sure that this is a safe referrer (e.g. via
|
|
// URLRequestJob::ComputeReferrerForPolicy).
|
|
if (referrer.is_valid()) {
|
|
@@ -321,11 +322,14 @@ void URLRequestHttpJob::OnGotFirstPartySetMetadata(
|
|
request_info_.extra_headers.SetHeader(HttpRequestHeaders::kReferer,
|
|
referer_value);
|
|
}
|
|
+ }
|
|
|
|
+ if (!(request_info_.load_flags & LOAD_MINIMAL_HEADERS)) {
|
|
request_info_.extra_headers.SetHeaderIfMissing(
|
|
HttpRequestHeaders::kUserAgent,
|
|
http_user_agent_settings_ ?
|
|
http_user_agent_settings_->GetUserAgent() : std::string());
|
|
+ }
|
|
|
|
AddExtraHeaders();
|
|
|
|
@@ -581,9 +585,9 @@ void URLRequestHttpJob::StartTransactionInternal() {
|
|
void URLRequestHttpJob::AddExtraHeaders() {
|
|
request_info_.extra_headers.SetAcceptEncodingIfMissing(
|
|
request()->url(), request()->accepted_stream_types(),
|
|
- request()->context()->enable_brotli());
|
|
+ !(request_info_.load_flags & LOAD_MINIMAL_HEADERS) && request()->context()->enable_brotli());
|
|
|
|
- if (http_user_agent_settings_) {
|
|
+ if (!(request_info_.load_flags & LOAD_MINIMAL_HEADERS) && http_user_agent_settings_) {
|
|
// Only add default Accept-Language if the request didn't have it
|
|
// specified.
|
|
std::string accept_language =
|
|
--
|
|
2.25.1
|