1 // Copyright 2017 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef CONTENT_BROWSER_INTERFACE_PROVIDER_FILTERING_H_
6 #define CONTENT_BROWSER_INTERFACE_PROVIDER_FILTERING_H_
7 
8 #include <memory>
9 
10 #include "base/macros.h"
11 #include "base/strings/string_piece.h"
12 #include "content/common/content_export.h"
13 #include "mojo/public/cpp/bindings/pending_receiver.h"
14 #include "services/service_manager/public/mojom/interface_provider.mojom.h"
15 
16 namespace content {
17 
18 // Filters interface requests received from an execution context of the type
19 // corresponding to |spec| in the renderer process with ID |process_id|.
20 // |receiver| is the PendingReceiver<InterfaceProvider> from the renderer; an
21 // equivalent PendingReceiver<InterfaceProvider> where GetInterface receivers
22 // have been filtered.
23 //
24 // If |process_id| does not refer to a renderer process or if that renderer's
25 // BrowserContext does not have a Connector, the connection is broken instead;
26 // that is, |receiver| and the mojo::PendingRemote<Interface> corresponding
27 // to the returned receiver are both closed.
28 mojo::PendingReceiver<service_manager::mojom::InterfaceProvider>
29 FilterRendererExposedInterfaces(
30     const char* spec,
31     int process_id,
32     mojo::PendingReceiver<service_manager::mojom::InterfaceProvider> receiver);
33 
34 namespace test {
35 
36 // Allows through all interface requests while in scope. For testing only.
37 //
38 // TODO(https://crbug.com/792407): See if browser tests can just set up the
39 // service_Manager::Connector properly instead of this heavy-handed solution.
40 class CONTENT_EXPORT ScopedInterfaceFilterBypass {
41  public:
42   ScopedInterfaceFilterBypass();
43   ~ScopedInterfaceFilterBypass();
44 
45  private:
46   DISALLOW_COPY_AND_ASSIGN(ScopedInterfaceFilterBypass);
47 };
48 
49 }  // namespace test
50 
51 }  // namespace content
52 
53 #endif  // CONTENT_BROWSER_INTERFACE_PROVIDER_FILTERING_H_
54