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// Copyright 2015 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 "components/web_restrictions/browser/web_restrictions_resource_throttle.h"
#include "base/bind.h"
#include "components/web_restrictions/browser/web_restrictions_client.h"
#include "net/base/net_errors.h"
#include "net/url_request/redirect_info.h"
#include "net/url_request/url_request.h"
namespace web_restrictions {
WebRestrictionsResourceThrottle::WebRestrictionsResourceThrottle(
WebRestrictionsClient* provider,
const GURL& request_url,
bool is_main_frame)
: provider_(provider),
request_url_(request_url),
is_main_frame_(is_main_frame),
weak_ptr_factory_(this) {}
WebRestrictionsResourceThrottle::~WebRestrictionsResourceThrottle() {}
void WebRestrictionsResourceThrottle::WillStartRequest(bool* defer) {
*defer = ShouldDefer(request_url_);
}
void WebRestrictionsResourceThrottle::WillRedirectRequest(
const net::RedirectInfo& redirect_info,
bool* defer) {
*defer = ShouldDefer(redirect_info.new_url);
}
const char* WebRestrictionsResourceThrottle::GetNameForLogging() const {
return "WebRestrictionsResourceThrottle";
}
bool WebRestrictionsResourceThrottle::ShouldDefer(const GURL& url) {
// For requests to function correctly, we need to allow subresources.
if (provider_->SupportsRequest() && !is_main_frame_)
return false;
UrlAccess access = provider_->ShouldProceed(
is_main_frame_, url.spec(),
base::Bind(&WebRestrictionsResourceThrottle::OnCheckResult,
weak_ptr_factory_.GetWeakPtr()));
if (access == DISALLOW)
OnCheckResult(false);
return access == PENDING;
}
void WebRestrictionsResourceThrottle::OnCheckResult(const bool should_proceed) {
if (should_proceed) {
Resume();
} else {
CancelWithError(net::ERR_BLOCKED_BY_ADMINISTRATOR);
}
}
} // namespace web_restrictions
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