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| 1 // Copyright 2016 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_BLUETOOTH_BLUETOOTH_BLACKLIST_H_ | |
| 6 #define CONTENT_BROWSER_BLUETOOTH_BLUETOOTH_BLACKLIST_H_ | |
| 7 | |
| 8 #include <map> | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "base/lazy_instance.h" | |
| 12 #include "base/macros.h" | |
| 13 #include "base/strings/string_piece.h" | |
| 14 #include "content/common/content_export.h" | |
| 15 #include "device/bluetooth/bluetooth_uuid.h" | |
| 16 #include "third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.moj
om.h" | |
| 17 | |
| 18 namespace content { | |
| 19 | |
| 20 // Implements the Web Bluetooth Blacklist policy as defined in the Web Bluetooth | |
| 21 // specification: | |
| 22 // https://webbluetoothcg.github.io/web-bluetooth/#the-gatt-blacklist | |
| 23 // | |
| 24 // Client code may query UUIDs to determine if they are excluded from use by the | |
| 25 // blacklist. | |
| 26 // | |
| 27 // Singleton access via Get() enforces only one copy of blacklist. | |
| 28 class CONTENT_EXPORT BluetoothBlacklist final { | |
| 29 public: | |
| 30 // Blacklist value terminology from Web Bluetooth specification: | |
| 31 // https://webbluetoothcg.github.io/web-bluetooth/#the-gatt-blacklist | |
| 32 enum class Value { | |
| 33 EXCLUDE, // Implies EXCLUDE_READS and EXCLUDE_WRITES. | |
| 34 EXCLUDE_READS, // Excluded from read operations. | |
| 35 EXCLUDE_WRITES // Excluded from write operations. | |
| 36 }; | |
| 37 | |
| 38 ~BluetoothBlacklist(); | |
| 39 | |
| 40 // Returns a singleton instance of the blacklist. | |
| 41 static BluetoothBlacklist& Get(); | |
| 42 | |
| 43 // Adds a UUID to the blacklist to be excluded from operations, merging with | |
| 44 // any previous value and resulting in the strictest exclusion rule from the | |
| 45 // combination of the two, E.G.: | |
| 46 // Add(uuid, EXCLUDE_READS); | |
| 47 // Add(uuid, EXCLUDE_WRITES); | |
| 48 // IsExcluded(uuid); // true. | |
| 49 // Requires UUID to be valid. | |
| 50 void Add(const device::BluetoothUUID&, Value); | |
| 51 | |
| 52 // Adds UUIDs to the blacklist by parsing a blacklist string and calling | |
| 53 // Add(uuid, value). | |
| 54 // | |
| 55 // The blacklist string format is defined at | |
| 56 // ContentBrowserClient::GetWebBluetoothBlacklist(). | |
| 57 // | |
| 58 // Malformed pairs in the string are ignored, including invalid UUID or | |
| 59 // exclusion values. Duplicate UUIDs follow Add()'s merging rule. | |
| 60 void Add(base::StringPiece blacklist_string); | |
| 61 | |
| 62 // Returns if a UUID is excluded from all operations. UUID must be valid. | |
| 63 bool IsExcluded(const device::BluetoothUUID&) const; | |
| 64 | |
| 65 // Returns if any UUID in a set of filters is excluded from all operations. | |
| 66 // UUID must be valid. | |
| 67 bool IsExcluded( | |
| 68 const mojo::Array<blink::mojom::WebBluetoothScanFilterPtr>& filters); | |
| 69 | |
| 70 // Returns if a UUID is excluded from read operations. UUID must be valid. | |
| 71 bool IsExcludedFromReads(const device::BluetoothUUID&) const; | |
| 72 | |
| 73 // Returns if a UUID is excluded from write operations. UUID must be valid. | |
| 74 bool IsExcludedFromWrites(const device::BluetoothUUID&) const; | |
| 75 | |
| 76 // Modifies |options->optional_services|, removing any UUIDs with | |
| 77 // Value::EXCLUDE. | |
| 78 void RemoveExcludedUUIDs( | |
| 79 blink::mojom::WebBluetoothRequestDeviceOptions* options); | |
| 80 | |
| 81 // Size of blacklist. | |
| 82 size_t size() { return blacklisted_uuids_.size(); } | |
| 83 | |
| 84 void ResetToDefaultValuesForTest(); | |
| 85 | |
| 86 private: | |
| 87 // friend LazyInstance to permit access to private constructor. | |
| 88 friend base::DefaultLazyInstanceTraits<BluetoothBlacklist>; | |
| 89 | |
| 90 BluetoothBlacklist(); | |
| 91 | |
| 92 void PopulateWithDefaultValues(); | |
| 93 | |
| 94 // Populates blacklist with values obtained dynamically from a server, able | |
| 95 // to be updated without shipping new executable versions. | |
| 96 void PopulateWithServerProvidedValues(); | |
| 97 | |
| 98 // Map of UUID to blacklisted value. | |
| 99 std::map<device::BluetoothUUID, Value> blacklisted_uuids_; | |
| 100 | |
| 101 DISALLOW_COPY_AND_ASSIGN(BluetoothBlacklist); | |
| 102 }; | |
| 103 | |
| 104 } // namespace content | |
| 105 | |
| 106 #endif // CONTENT_BROWSER_BLUETOOTH_BLUETOOTH_BLACKLIST_H_ | |
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