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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "extensions/browser/event_listener_map.h" | 5 #include "extensions/browser/event_listener_map.h" |
6 | 6 |
7 #include <stddef.h> | 7 #include <stddef.h> |
8 | 8 |
9 #include <utility> | 9 #include <utility> |
10 | 10 |
11 #include "base/memory/ptr_util.h" | 11 #include "base/memory/ptr_util.h" |
12 #include "base/values.h" | 12 #include "base/values.h" |
13 #include "content/public/browser/render_process_host.h" | 13 #include "content/public/browser/render_process_host.h" |
14 #include "extensions/browser/event_router.h" | 14 #include "extensions/browser/event_router.h" |
15 #include "extensions/common/constants.h" | |
15 #include "ipc/ipc_message.h" | 16 #include "ipc/ipc_message.h" |
16 #include "url/gurl.h" | 17 #include "url/gurl.h" |
17 #include "url/origin.h" | 18 #include "url/origin.h" |
18 | 19 |
19 using base::DictionaryValue; | 20 using base::DictionaryValue; |
20 | 21 |
21 namespace extensions { | 22 namespace extensions { |
22 | 23 |
23 typedef EventFilter::MatcherID MatcherID; | 24 typedef EventFilter::MatcherID MatcherID; |
24 | 25 |
25 // static | 26 // static |
26 std::unique_ptr<EventListener> EventListener::ForExtension( | 27 std::unique_ptr<EventListener> EventListener::ForExtension( |
27 const std::string& event_name, | 28 const std::string& event_name, |
28 const std::string& extension_id, | 29 const std::string& extension_id, |
29 content::RenderProcessHost* process, | 30 content::RenderProcessHost* process, |
30 std::unique_ptr<base::DictionaryValue> filter) { | 31 std::unique_ptr<base::DictionaryValue> filter) { |
31 return base::WrapUnique(new EventListener(event_name, extension_id, GURL(), | 32 return base::WrapUnique(new EventListener(event_name, extension_id, GURL(), |
32 process, std::move(filter))); | 33 process, kNonWorkerThreadId, |
34 std::move(filter))); | |
33 } | 35 } |
34 | 36 |
35 // static | 37 // static |
36 std::unique_ptr<EventListener> EventListener::ForURL( | 38 std::unique_ptr<EventListener> EventListener::ForURL( |
37 const std::string& event_name, | 39 const std::string& event_name, |
38 const GURL& listener_url, | 40 const GURL& listener_url, |
39 content::RenderProcessHost* process, | 41 content::RenderProcessHost* process, |
40 std::unique_ptr<base::DictionaryValue> filter) { | 42 std::unique_ptr<base::DictionaryValue> filter) { |
41 // Use only the origin to identify the event listener, e.g. chrome://settings | 43 // Use only the origin to identify the event listener, e.g. chrome://settings |
42 // for chrome://settings/accounts, to avoid multiple events being triggered | 44 // for chrome://settings/accounts, to avoid multiple events being triggered |
43 // for the same process. See crbug.com/536858 for details. // TODO(devlin): If | 45 // for the same process. See crbug.com/536858 for details. // TODO(devlin): If |
44 // we dispatched events to processes more intelligently this could be avoided. | 46 // we dispatched events to processes more intelligently this could be avoided. |
45 return base::WrapUnique(new EventListener(event_name, "", | 47 return base::WrapUnique( |
46 url::Origin(listener_url).GetURL(), | 48 new EventListener(event_name, "", url::Origin(listener_url).GetURL(), |
Devlin
2017/06/01 04:54:49
while we're here, prefer std::string()
lazyboy
2017/06/01 23:33:29
Done.
| |
47 process, std::move(filter))); | 49 process, kNonWorkerThreadId, std::move(filter))); |
50 } | |
51 | |
52 std::unique_ptr<EventListener> EventListener::ForExtensionServiceWorker( | |
53 const std::string& event_name, | |
54 const std::string& extension_id, | |
55 content::RenderProcessHost* process, | |
56 int worker_thread_id, | |
57 std::unique_ptr<base::DictionaryValue> filter) { | |
58 return base::WrapUnique(new EventListener(event_name, extension_id, GURL(), | |
59 process, worker_thread_id, | |
60 std::move(filter))); | |
48 } | 61 } |
49 | 62 |
50 EventListener::~EventListener() {} | 63 EventListener::~EventListener() {} |
51 | 64 |
52 bool EventListener::Equals(const EventListener* other) const { | 65 bool EventListener::Equals(const EventListener* other) const { |
53 // We don't check matcher_id equality because we want a listener with a | 66 // We don't check matcher_id equality because we want a listener with a |
54 // filter that hasn't been added to EventFilter to match one that is | 67 // filter that hasn't been added to EventFilter to match one that is |
55 // equivalent but has. | 68 // equivalent but has. |
56 return event_name_ == other->event_name_ && | 69 return event_name_ == other->event_name_ && |
57 extension_id_ == other->extension_id_ && | 70 extension_id_ == other->extension_id_ && |
58 listener_url_ == other->listener_url_ && process_ == other->process_ && | 71 listener_url_ == other->listener_url_ && process_ == other->process_ && |
72 worker_thread_id_ == other->worker_thread_id_ && | |
59 ((!!filter_.get()) == (!!other->filter_.get())) && | 73 ((!!filter_.get()) == (!!other->filter_.get())) && |
60 (!filter_.get() || filter_->Equals(other->filter_.get())); | 74 (!filter_.get() || filter_->Equals(other->filter_.get())); |
61 } | 75 } |
62 | 76 |
63 std::unique_ptr<EventListener> EventListener::Copy() const { | 77 std::unique_ptr<EventListener> EventListener::Copy() const { |
64 std::unique_ptr<DictionaryValue> filter_copy; | 78 std::unique_ptr<DictionaryValue> filter_copy; |
65 if (filter_) | 79 if (filter_) |
66 filter_copy = filter_->CreateDeepCopy(); | 80 filter_copy = filter_->CreateDeepCopy(); |
67 return base::WrapUnique(new EventListener(event_name_, extension_id_, | 81 return base::WrapUnique( |
68 listener_url_, process_, | 82 new EventListener(event_name_, extension_id_, listener_url_, process_, |
69 std::move(filter_copy))); | 83 worker_thread_id_, std::move(filter_copy))); |
70 } | 84 } |
71 | 85 |
72 bool EventListener::IsLazy() const { | 86 bool EventListener::IsLazy() const { |
73 return !process_; | 87 return !process_; |
74 } | 88 } |
75 | 89 |
90 bool EventListener::IsForServiceWorker() const { | |
91 return worker_thread_id_ != kNonWorkerThreadId; | |
92 } | |
93 | |
76 void EventListener::MakeLazy() { | 94 void EventListener::MakeLazy() { |
95 DCHECK_NE(worker_thread_id_, kNonWorkerThreadId); | |
77 process_ = nullptr; | 96 process_ = nullptr; |
78 } | 97 } |
79 | 98 |
80 content::BrowserContext* EventListener::GetBrowserContext() const { | 99 content::BrowserContext* EventListener::GetBrowserContext() const { |
81 return process_ ? process_->GetBrowserContext() : nullptr; | 100 return process_ ? process_->GetBrowserContext() : nullptr; |
82 } | 101 } |
83 | 102 |
84 EventListener::EventListener(const std::string& event_name, | 103 EventListener::EventListener(const std::string& event_name, |
85 const std::string& extension_id, | 104 const std::string& extension_id, |
86 const GURL& listener_url, | 105 const GURL& listener_url, |
87 content::RenderProcessHost* process, | 106 content::RenderProcessHost* process, |
107 int worker_thread_id, | |
88 std::unique_ptr<DictionaryValue> filter) | 108 std::unique_ptr<DictionaryValue> filter) |
89 : event_name_(event_name), | 109 : event_name_(event_name), |
90 extension_id_(extension_id), | 110 extension_id_(extension_id), |
91 listener_url_(listener_url), | 111 listener_url_(listener_url), |
92 process_(process), | 112 process_(process), |
113 worker_thread_id_(worker_thread_id), | |
93 filter_(std::move(filter)), | 114 filter_(std::move(filter)), |
94 matcher_id_(-1) {} | 115 matcher_id_(-1) {} |
95 | 116 |
96 EventListenerMap::EventListenerMap(Delegate* delegate) | 117 EventListenerMap::EventListenerMap(Delegate* delegate) |
97 : delegate_(delegate) { | 118 : delegate_(delegate) { |
98 } | 119 } |
99 | 120 |
100 EventListenerMap::~EventListenerMap() {} | 121 EventListenerMap::~EventListenerMap() {} |
101 | 122 |
102 bool EventListenerMap::AddListener(std::unique_ptr<EventListener> listener) { | 123 bool EventListenerMap::AddListener(std::unique_ptr<EventListener> listener) { |
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167 | 188 |
168 for (const auto& listener_to_search : it->second) { | 189 for (const auto& listener_to_search : it->second) { |
169 if (listener_to_search->Equals(listener)) | 190 if (listener_to_search->Equals(listener)) |
170 return true; | 191 return true; |
171 } | 192 } |
172 return false; | 193 return false; |
173 } | 194 } |
174 | 195 |
175 bool EventListenerMap::HasProcessListener( | 196 bool EventListenerMap::HasProcessListener( |
176 content::RenderProcessHost* process, | 197 content::RenderProcessHost* process, |
198 int worker_thread_id, | |
177 const std::string& extension_id) const { | 199 const std::string& extension_id) const { |
178 for (const auto& it : listeners_) { | 200 for (const auto& it : listeners_) { |
179 for (const auto& listener : it.second) { | 201 for (const auto& listener : it.second) { |
180 if (listener->process() == process && | 202 if (listener->process() == process && |
181 listener->extension_id() == extension_id) | 203 listener->extension_id() == extension_id && |
204 listener->worker_thread_id() == worker_thread_id) { | |
182 return true; | 205 return true; |
206 } | |
183 } | 207 } |
184 } | 208 } |
185 return false; | 209 return false; |
186 } | 210 } |
187 | 211 |
188 void EventListenerMap::RemoveListenersForExtension( | 212 void EventListenerMap::RemoveListenersForExtension( |
189 const std::string& extension_id) { | 213 const std::string& extension_id) { |
190 for (auto& it : listeners_) { | 214 for (auto& it : listeners_) { |
191 auto& listener_map = it.second; | 215 auto& listener_map = it.second; |
192 for (ListenerList::iterator it2 = listener_map.begin(); | 216 for (ListenerList::iterator it2 = listener_map.begin(); |
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217 const DictionaryValue& filtered) { | 241 const DictionaryValue& filtered) { |
218 for (DictionaryValue::Iterator it(filtered); !it.IsAtEnd(); it.Advance()) { | 242 for (DictionaryValue::Iterator it(filtered); !it.IsAtEnd(); it.Advance()) { |
219 // We skip entries if they are malformed. | 243 // We skip entries if they are malformed. |
220 const base::ListValue* filter_list = nullptr; | 244 const base::ListValue* filter_list = nullptr; |
221 if (!it.value().GetAsList(&filter_list)) | 245 if (!it.value().GetAsList(&filter_list)) |
222 continue; | 246 continue; |
223 for (size_t i = 0; i < filter_list->GetSize(); i++) { | 247 for (size_t i = 0; i < filter_list->GetSize(); i++) { |
224 const DictionaryValue* filter = nullptr; | 248 const DictionaryValue* filter = nullptr; |
225 if (!filter_list->GetDictionary(i, &filter)) | 249 if (!filter_list->GetDictionary(i, &filter)) |
226 continue; | 250 continue; |
251 // Currently this is only used for lazy background page events. | |
252 // TODO(lazyboy): Add extension SW lazy events. | |
227 AddListener( | 253 AddListener( |
228 EventListener::ForExtension(it.key(), extension_id, nullptr, | 254 EventListener::ForExtension(it.key(), extension_id, nullptr, |
229 base::WrapUnique(filter->DeepCopy()))); | 255 base::WrapUnique(filter->DeepCopy()))); |
230 } | 256 } |
231 } | 257 } |
232 } | 258 } |
233 | 259 |
234 std::set<const EventListener*> EventListenerMap::GetEventListeners( | 260 std::set<const EventListener*> EventListenerMap::GetEventListeners( |
235 const Event& event) { | 261 const Event& event) { |
236 std::set<const EventListener*> interested_listeners; | 262 std::set<const EventListener*> interested_listeners; |
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277 return; | 303 return; |
278 event_filter_.RemoveEventMatcher(listener->matcher_id()); | 304 event_filter_.RemoveEventMatcher(listener->matcher_id()); |
279 CHECK_EQ(1u, listeners_by_matcher_id_.erase(listener->matcher_id())); | 305 CHECK_EQ(1u, listeners_by_matcher_id_.erase(listener->matcher_id())); |
280 } | 306 } |
281 | 307 |
282 bool EventListenerMap::IsFilteredEvent(const Event& event) const { | 308 bool EventListenerMap::IsFilteredEvent(const Event& event) const { |
283 return base::ContainsKey(filtered_events_, event.event_name); | 309 return base::ContainsKey(filtered_events_, event.event_name); |
284 } | 310 } |
285 | 311 |
286 } // namespace extensions | 312 } // namespace extensions |
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