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// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/signin/chrome_signin_url_loader_throttle.h"
#include "base/memory/ptr_util.h"
#include "base/memory/raw_ptr.h"
#include "chrome/browser/signin/chrome_signin_helper.h"
#include "chrome/browser/signin/header_modification_delegate.h"
#include "components/signin/core/browser/signin_header_helper.h"
#include "services/network/public/cpp/resource_request.h"
#include "services/network/public/mojom/url_response_head.mojom.h"
namespace signin {
class URLLoaderThrottle::ThrottleRequestAdapter : public ChromeRequestAdapter {
public:
ThrottleRequestAdapter(URLLoaderThrottle* throttle,
const net::HttpRequestHeaders& original_headers,
net::HttpRequestHeaders* modified_headers,
std::vector<std::string>* headers_to_remove)
: ChromeRequestAdapter(throttle->request_url_,
original_headers,
modified_headers,
headers_to_remove),
throttle_(throttle) {}
ThrottleRequestAdapter(const ThrottleRequestAdapter&) = delete;
ThrottleRequestAdapter& operator=(const ThrottleRequestAdapter&) = delete;
~ThrottleRequestAdapter() override = default;
// ChromeRequestAdapter
content::WebContents::Getter GetWebContentsGetter() const override {
return throttle_->web_contents_getter_;
}
network::mojom::RequestDestination GetRequestDestination() const override {
return throttle_->request_destination_;
}
bool IsFetchLikeAPI() const override {
return throttle_->request_is_fetch_like_api_;
}
GURL GetReferrerOrigin() const override {
return throttle_->request_referrer_.DeprecatedGetOriginAsURL();
}
void SetDestructionCallback(base::OnceClosure closure) override {
if (!throttle_->destruction_callback_)
throttle_->destruction_callback_ = std::move(closure);
}
private:
const raw_ptr<URLLoaderThrottle> throttle_;
};
class URLLoaderThrottle::ThrottleResponseAdapter : public ResponseAdapter {
public:
ThrottleResponseAdapter(URLLoaderThrottle* throttle,
net::HttpResponseHeaders* headers)
: throttle_(throttle), headers_(headers) {}
ThrottleResponseAdapter(const ThrottleResponseAdapter&) = delete;
ThrottleResponseAdapter& operator=(const ThrottleResponseAdapter&) = delete;
~ThrottleResponseAdapter() override = default;
// ResponseAdapter
content::WebContents::Getter GetWebContentsGetter() const override {
return throttle_->web_contents_getter_;
}
bool IsMainFrame() const override {
return throttle_->request_destination_ ==
network::mojom::RequestDestination::kDocument;
}
GURL GetOrigin() const override {
return throttle_->request_url_.DeprecatedGetOriginAsURL();
}
const net::HttpResponseHeaders* GetHeaders() const override {
return headers_;
}
void RemoveHeader(const std::string& name) override {
headers_->RemoveHeader(name);
}
base::SupportsUserData::Data* GetUserData(const void* key) const override {
return throttle_->GetUserData(key);
}
void SetUserData(
const void* key,
std::unique_ptr<base::SupportsUserData::Data> data) override {
throttle_->SetUserData(key, std::move(data));
}
private:
const raw_ptr<URLLoaderThrottle> throttle_;
raw_ptr<net::HttpResponseHeaders> headers_;
};
// static
std::unique_ptr<URLLoaderThrottle> URLLoaderThrottle::MaybeCreate(
std::unique_ptr<HeaderModificationDelegate> delegate,
content::WebContents::Getter web_contents_getter) {
if (!delegate->ShouldInterceptNavigation(web_contents_getter.Run()))
return nullptr;
return base::WrapUnique(new URLLoaderThrottle(
std::move(delegate), std::move(web_contents_getter)));
}
URLLoaderThrottle::~URLLoaderThrottle() {
if (destruction_callback_)
std::move(destruction_callback_).Run();
}
void URLLoaderThrottle::WillStartRequest(network::ResourceRequest* request,
bool* defer) {
request_url_ = request->url;
request_referrer_ = request->referrer;
request_destination_ = request->destination;
request_is_fetch_like_api_ = request->is_fetch_like_api;
net::HttpRequestHeaders modified_request_headers;
std::vector<std::string> to_be_removed_request_headers;
ThrottleRequestAdapter adapter(this, request->headers,
&modified_request_headers,
&to_be_removed_request_headers);
delegate_->ProcessRequest(&adapter, GURL() /* redirect_url */);
request->headers.MergeFrom(modified_request_headers);
for (const std::string& name : to_be_removed_request_headers)
request->headers.RemoveHeader(name);
// We need to keep a full copy of the request headers for later calls to
// FixAccountConsistencyRequestHeader. Perhaps this could be replaced with
// more specific per-request state.
request_headers_.CopyFrom(request->headers);
request_cors_exempt_headers_.CopyFrom(request->cors_exempt_headers);
}
void URLLoaderThrottle::WillRedirectRequest(
net::RedirectInfo* redirect_info,
const network::mojom::URLResponseHead& response_head,
bool* /* defer */,
std::vector<std::string>* to_be_removed_request_headers,
net::HttpRequestHeaders* modified_request_headers,
net::HttpRequestHeaders* modified_cors_exempt_request_headers) {
ThrottleRequestAdapter request_adapter(this, request_headers_,
modified_request_headers,
to_be_removed_request_headers);
delegate_->ProcessRequest(&request_adapter, redirect_info->new_url);
request_headers_.MergeFrom(*modified_request_headers);
for (const std::string& name : *to_be_removed_request_headers)
request_headers_.RemoveHeader(name);
// Modifications to |response_head.headers| will be passed to the
// URLLoaderClient even though |response_head| is const.
ThrottleResponseAdapter response_adapter(this, response_head.headers.get());
delegate_->ProcessResponse(&response_adapter, redirect_info->new_url);
request_url_ = redirect_info->new_url;
request_referrer_ = GURL(redirect_info->new_referrer);
}
void URLLoaderThrottle::WillProcessResponse(
const GURL& response_url,
network::mojom::URLResponseHead* response_head,
bool* defer) {
ThrottleResponseAdapter adapter(this, response_head->headers.get());
delegate_->ProcessResponse(&adapter, GURL() /* redirect_url */);
}
URLLoaderThrottle::URLLoaderThrottle(
std::unique_ptr<HeaderModificationDelegate> delegate,
content::WebContents::Getter web_contents_getter)
: delegate_(std::move(delegate)),
web_contents_getter_(std::move(web_contents_getter)) {}
} // namespace signin
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