1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_URL_REWRITE_BROWSER_URL_REQUEST_REWRITE_RULES_MANAGER_H_
#define COMPONENTS_URL_REWRITE_BROWSER_URL_REQUEST_REWRITE_RULES_MANAGER_H_
#include "base/memory/scoped_refptr.h"
#include "base/sequence_checker.h"
#include "components/url_rewrite/common/url_request_rewrite_rules.h"
#include "content/public/browser/global_routing_id.h"
#include "content/public/browser/web_contents_observer.h"
#include "mojo/public/cpp/bindings/associated_remote.h"
namespace content {
class RenderFrameHost;
class WebContents;
} // namespace content
namespace url_rewrite {
// Adapts the UrlRequestRewrite FIDL API to be sent to the renderers over the
// over the UrlRequestRewrite Mojo API.
class UrlRequestRewriteRulesManager {
public:
UrlRequestRewriteRulesManager();
UrlRequestRewriteRulesManager(const UrlRequestRewriteRulesManager&) = delete;
UrlRequestRewriteRulesManager& operator=(
const UrlRequestRewriteRulesManager&) = delete;
~UrlRequestRewriteRulesManager();
// Observes the frames created in the |web_contents| and updates their URL
// request rewrite rules. Returns true on success, false otherwise.
bool AddWebContents(content::WebContents* web_contents);
// Removes the |web_contents| from the observer list. Returns true on success,
// false otherwise.
bool RemoveWebContents(content::WebContents* web_contents);
// Signals |rules| have been updated. Returns true if
// rules have been successfully validated and updated, false otherwise.
bool OnRulesUpdated(mojom::UrlRequestRewriteRulesPtr rules);
const scoped_refptr<UrlRequestRewriteRules>& GetCachedRules() const;
// Used for testing.
size_t GetUpdatersSizeForTesting() const;
private:
// Observes render frame creation and destruction for a certain WebContents
// and updates the URL request rewrite rules for each frame.
class Updater final : public content::WebContentsObserver {
public:
Updater(content::WebContents* web_contents,
const scoped_refptr<UrlRequestRewriteRules>& cached_rules);
Updater(const Updater&) = delete;
Updater& operator=(const Updater&) = delete;
~Updater() override;
// Notifies UrlRequestRulesReceivers that URL rewrite rules are updated.
void OnRulesUpdated(
const scoped_refptr<UrlRequestRewriteRules>& cached_rules);
private:
// Callback used to iterate over the initial set of RenderFrameHosts in the
// WebContents.
void MaybeRegisterExistingRenderFrame(
content::RenderFrameHost* render_frame_host);
// content::WebContentsObserver implementation.
void RenderFrameCreated(
content::RenderFrameHost* render_frame_host) override;
void RenderFrameDeleted(
content::RenderFrameHost* render_frame_host) override;
scoped_refptr<UrlRequestRewriteRules> cached_rules_;
// Map of GlobalRoutingID to their current associated remote.
std::map<content::GlobalRenderFrameHostId,
mojo::AssociatedRemote<mojom::UrlRequestRulesReceiver>>
active_remotes_;
SEQUENCE_CHECKER(sequence_checker_);
};
scoped_refptr<UrlRequestRewriteRules> cached_rules_;
// Map of WebContent to their URL request rewrite rules updater.
std::map<content::WebContents*, std::unique_ptr<Updater>> updaters_;
SEQUENCE_CHECKER(sequence_checker_);
};
} // namespace url_rewrite
#endif // COMPONENTS_URL_REWRITE_BROWSER_URL_REQUEST_REWRITE_RULES_MANAGER_H_
|
