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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_SSL_HTTPS_ONLY_MODE_TAB_HELPER_H_
#define CHROME_BROWSER_SSL_HTTPS_ONLY_MODE_TAB_HELPER_H_
#include "base/containers/contains.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/browser/web_contents_user_data.h"
namespace content {
class NavigationHandle;
class WebContents;
} // namespace content
// A short-lived, per-tab helper for tracking HTTPS-Only Mode data about the
// navigation.
class HttpsOnlyModeTabHelper
: public content::WebContentsObserver,
public content::WebContentsUserData<HttpsOnlyModeTabHelper> {
public:
HttpsOnlyModeTabHelper(const HttpsOnlyModeTabHelper&) = delete;
HttpsOnlyModeTabHelper& operator=(const HttpsOnlyModeTabHelper&) = delete;
~HttpsOnlyModeTabHelper() override;
// content::WebContentsObserver:
void DidStartNavigation(
content::NavigationHandle* navigation_handle) override;
// HTTPS-Only Mode metadata getters and setters:
void set_is_navigation_upgraded(bool upgraded) {
is_navigation_upgraded_ = upgraded;
}
bool is_navigation_upgraded() const { return is_navigation_upgraded_; }
void set_is_navigation_fallback(bool fallback) {
is_navigation_fallback_ = fallback;
}
bool is_navigation_fallback() const { return is_navigation_fallback_; }
void set_fallback_url(const GURL& fallback_url) {
fallback_url_ = fallback_url;
}
GURL fallback_url() const { return fallback_url_; }
bool has_failed_upgrade(const GURL& url) const {
return base::Contains(failed_upgrade_urls_, url);
}
void add_failed_upgrade(const GURL& url) { failed_upgrade_urls_.insert(url); }
void set_is_exempt_error(bool is_exempt_error) {
is_exempt_error_ = is_exempt_error;
}
bool is_exempt_error() const { return is_exempt_error_; }
private:
explicit HttpsOnlyModeTabHelper(content::WebContents* web_contents);
friend class content::WebContentsUserData<HttpsOnlyModeTabHelper>;
// TODO(crbug.com/40771668): Track upgrade status per-navigation rather than
// per-WebContents, in case multiple navigations occur in the WebContents and
// the metadata is not cleared. This may be tricky however as the Interceptor
// and the Throttle have slightly different views of the navigation -- the
// Throttle has a NavigationHandle (and thus the Navigation ID) but the
// Interceptor has the NavigationEntry's ID which does not match.
bool is_navigation_upgraded_ = false;
// Set to true if the current navigation is a fallback to HTTP.
bool is_navigation_fallback_ = false;
// HTTP URL that the current navigation should fall back to on failure.
GURL fallback_url_;
// Holds the set of URLs that have failed to be upgraded to HTTPS in this
// WebContents. This is used to immediately show the HTTP interstitial without
// re-trying to upgrade the navigation -- currently this is only applied to
// back/forward navigations as they interact badly with interceptors, and this
// acts as the browser "remembering" the navigation state.
//
// In the case of HTTPS Upgrades, without HTTPS-First Mode enabled, these
// hostnames will also be on the HTTP allowlist, bypassing upgrade attempts.
std::set<GURL> failed_upgrade_urls_;
// Set to true if the current navigation resulted in a net error that is
// indicative of potentially-transient network conditions (such as a hostname
// resolution failure, the network being disconnected, or an address being
// unreachable) which don't signal that the server doesn't support HTTPS. This
// is used to track whether to maintain upgrade state across reloads (such as
// the automatic net error reload) and continue the upgrade attempt
// post-reload.
bool is_exempt_error_ = false;
WEB_CONTENTS_USER_DATA_KEY_DECL();
};
#endif // CHROME_BROWSER_SSL_HTTPS_ONLY_MODE_TAB_HELPER_H_
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