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| 1 /* |  | 
| 2  * Copyright (c) 2010-2011 Google Inc. All rights reserved. |  | 
| 3  * |  | 
| 4  * Redistribution and use in source and binary forms, with or without |  | 
| 5  * modification, are permitted provided that the following conditions are |  | 
| 6  * met: |  | 
| 7  * |  | 
| 8  *     * Redistributions of source code must retain the above copyright |  | 
| 9  * notice, this list of conditions and the following disclaimer. |  | 
| 10  *     * Redistributions in binary form must reproduce the above |  | 
| 11  * copyright notice, this list of conditions and the following disclaimer |  | 
| 12  * in the documentation and/or other materials provided with the |  | 
| 13  * distribution. |  | 
| 14  *     * Neither the name of Google Inc. nor the names of its |  | 
| 15  * contributors may be used to endorse or promote products derived from |  | 
| 16  * this software without specific prior written permission. |  | 
| 17  * |  | 
| 18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |  | 
| 19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |  | 
| 20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |  | 
| 21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |  | 
| 22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |  | 
| 23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |  | 
| 24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |  | 
| 25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |  | 
| 26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |  | 
| 27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |  | 
| 28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |  | 
| 29  */ |  | 
| 30 |  | 
| 31 #include "src/inspector/V8InspectorImpl.h" |  | 
| 32 |  | 
| 33 #include "src/inspector/InspectedContext.h" |  | 
| 34 #include "src/inspector/StringUtil.h" |  | 
| 35 #include "src/inspector/V8Compat.h" |  | 
| 36 #include "src/inspector/V8ConsoleAgentImpl.h" |  | 
| 37 #include "src/inspector/V8ConsoleMessage.h" |  | 
| 38 #include "src/inspector/V8Debugger.h" |  | 
| 39 #include "src/inspector/V8DebuggerAgentImpl.h" |  | 
| 40 #include "src/inspector/V8InspectorSessionImpl.h" |  | 
| 41 #include "src/inspector/V8RuntimeAgentImpl.h" |  | 
| 42 #include "src/inspector/V8StackTraceImpl.h" |  | 
| 43 #include "src/inspector/protocol/Protocol.h" |  | 
| 44 #include "src/inspector/public/V8InspectorClient.h" |  | 
| 45 #include <v8-profiler.h> |  | 
| 46 |  | 
| 47 namespace v8_inspector { |  | 
| 48 |  | 
| 49 std::unique_ptr<V8Inspector> V8Inspector::create(v8::Isolate* isolate, V8Inspect
     orClient* client) |  | 
| 50 { |  | 
| 51     return wrapUnique(new V8InspectorImpl(isolate, client)); |  | 
| 52 } |  | 
| 53 |  | 
| 54 V8InspectorImpl::V8InspectorImpl(v8::Isolate* isolate, V8InspectorClient* client
     ) |  | 
| 55     : m_isolate(isolate) |  | 
| 56     , m_client(client) |  | 
| 57     , m_debugger(new V8Debugger(isolate, this)) |  | 
| 58     , m_capturingStackTracesCount(0) |  | 
| 59     , m_lastExceptionId(0) |  | 
| 60 { |  | 
| 61 } |  | 
| 62 |  | 
| 63 V8InspectorImpl::~V8InspectorImpl() |  | 
| 64 { |  | 
| 65 } |  | 
| 66 |  | 
| 67 V8DebuggerAgentImpl* V8InspectorImpl::enabledDebuggerAgentForGroup(int contextGr
     oupId) |  | 
| 68 { |  | 
| 69     V8InspectorSessionImpl* session = sessionForContextGroup(contextGroupId); |  | 
| 70     V8DebuggerAgentImpl* agent = session ? session->debuggerAgent() : nullptr; |  | 
| 71     return agent && agent->enabled() ? agent : nullptr; |  | 
| 72 } |  | 
| 73 |  | 
| 74 V8RuntimeAgentImpl* V8InspectorImpl::enabledRuntimeAgentForGroup(int contextGrou
     pId) |  | 
| 75 { |  | 
| 76     V8InspectorSessionImpl* session = sessionForContextGroup(contextGroupId); |  | 
| 77     V8RuntimeAgentImpl* agent = session ? session->runtimeAgent() : nullptr; |  | 
| 78     return agent && agent->enabled() ? agent : nullptr; |  | 
| 79 } |  | 
| 80 |  | 
| 81 v8::MaybeLocal<v8::Value> V8InspectorImpl::runCompiledScript(v8::Local<v8::Conte
     xt> context, v8::Local<v8::Script> script) |  | 
| 82 { |  | 
| 83     v8::MicrotasksScope microtasksScope(m_isolate, v8::MicrotasksScope::kRunMicr
     otasks); |  | 
| 84     int groupId = V8Debugger::getGroupId(context); |  | 
| 85     if (V8DebuggerAgentImpl* agent = enabledDebuggerAgentForGroup(groupId)) |  | 
| 86         agent->willExecuteScript(script->GetUnboundScript()->GetId()); |  | 
| 87     v8::MaybeLocal<v8::Value> result = script->Run(context); |  | 
| 88     // Get agent from the map again, since it could have detached during script 
     execution. |  | 
| 89     if (V8DebuggerAgentImpl* agent = enabledDebuggerAgentForGroup(groupId)) |  | 
| 90         agent->didExecuteScript(); |  | 
| 91     return result; |  | 
| 92 } |  | 
| 93 |  | 
| 94 v8::MaybeLocal<v8::Value> V8InspectorImpl::callFunction(v8::Local<v8::Function> 
     function, v8::Local<v8::Context> context, v8::Local<v8::Value> receiver, int arg
     c, v8::Local<v8::Value> info[]) |  | 
| 95 { |  | 
| 96     v8::MicrotasksScope microtasksScope(m_isolate, v8::MicrotasksScope::kRunMicr
     otasks); |  | 
| 97     int groupId = V8Debugger::getGroupId(context); |  | 
| 98     if (V8DebuggerAgentImpl* agent = enabledDebuggerAgentForGroup(groupId)) |  | 
| 99         agent->willExecuteScript(function->ScriptId()); |  | 
| 100     v8::MaybeLocal<v8::Value> result = function->Call(context, receiver, argc, i
     nfo); |  | 
| 101     // Get agent from the map again, since it could have detached during script 
     execution. |  | 
| 102     if (V8DebuggerAgentImpl* agent = enabledDebuggerAgentForGroup(groupId)) |  | 
| 103         agent->didExecuteScript(); |  | 
| 104     return result; |  | 
| 105 } |  | 
| 106 |  | 
| 107 v8::MaybeLocal<v8::Value> V8InspectorImpl::compileAndRunInternalScript(v8::Local
     <v8::Context> context, v8::Local<v8::String> source) |  | 
| 108 { |  | 
| 109     v8::Local<v8::Script> script = compileScript(context, source, String16(), tr
     ue); |  | 
| 110     if (script.IsEmpty()) |  | 
| 111         return v8::MaybeLocal<v8::Value>(); |  | 
| 112     v8::MicrotasksScope microtasksScope(m_isolate, v8::MicrotasksScope::kDoNotRu
     nMicrotasks); |  | 
| 113     return script->Run(context); |  | 
| 114 } |  | 
| 115 |  | 
| 116 v8::Local<v8::Script> V8InspectorImpl::compileScript(v8::Local<v8::Context> cont
     ext, v8::Local<v8::String> code, const String16& fileName, bool markAsInternal) |  | 
| 117 { |  | 
| 118     v8::ScriptOrigin origin( |  | 
| 119         toV8String(m_isolate, fileName), |  | 
| 120         v8::Integer::New(m_isolate, 0), |  | 
| 121         v8::Integer::New(m_isolate, 0), |  | 
| 122         v8::False(m_isolate), // sharable |  | 
| 123         v8::Local<v8::Integer>(), |  | 
| 124         v8::Boolean::New(m_isolate, markAsInternal), // internal |  | 
| 125         toV8String(m_isolate, String16()), // sourceMap |  | 
| 126         v8::True(m_isolate)); // opaqueresource |  | 
| 127     v8::ScriptCompiler::Source source(code, origin); |  | 
| 128     v8::Local<v8::Script> script; |  | 
| 129     if (!v8::ScriptCompiler::Compile(context, &source, v8::ScriptCompiler::kNoCo
     mpileOptions).ToLocal(&script)) |  | 
| 130         return v8::Local<v8::Script>(); |  | 
| 131     return script; |  | 
| 132 } |  | 
| 133 |  | 
| 134 void V8InspectorImpl::enableStackCapturingIfNeeded() |  | 
| 135 { |  | 
| 136     if (!m_capturingStackTracesCount) |  | 
| 137         V8StackTraceImpl::setCaptureStackTraceForUncaughtExceptions(m_isolate, t
     rue); |  | 
| 138     ++m_capturingStackTracesCount; |  | 
| 139 } |  | 
| 140 |  | 
| 141 void V8InspectorImpl::disableStackCapturingIfNeeded() |  | 
| 142 { |  | 
| 143     if (!(--m_capturingStackTracesCount)) |  | 
| 144         V8StackTraceImpl::setCaptureStackTraceForUncaughtExceptions(m_isolate, f
     alse); |  | 
| 145 } |  | 
| 146 |  | 
| 147 void V8InspectorImpl::muteExceptions(int contextGroupId) |  | 
| 148 { |  | 
| 149     m_muteExceptionsMap[contextGroupId]++; |  | 
| 150 } |  | 
| 151 |  | 
| 152 void V8InspectorImpl::unmuteExceptions(int contextGroupId) |  | 
| 153 { |  | 
| 154     m_muteExceptionsMap[contextGroupId]--; |  | 
| 155 } |  | 
| 156 |  | 
| 157 V8ConsoleMessageStorage* V8InspectorImpl::ensureConsoleMessageStorage(int contex
     tGroupId) |  | 
| 158 { |  | 
| 159     ConsoleStorageMap::iterator storageIt = m_consoleStorageMap.find(contextGrou
     pId); |  | 
| 160     if (storageIt == m_consoleStorageMap.end()) |  | 
| 161         storageIt = m_consoleStorageMap.insert(std::make_pair(contextGroupId, wr
     apUnique(new V8ConsoleMessageStorage(this, contextGroupId)))).first; |  | 
| 162     return storageIt->second.get(); |  | 
| 163 } |  | 
| 164 |  | 
| 165 std::unique_ptr<V8StackTrace> V8InspectorImpl::createStackTrace(v8::Local<v8::St
     ackTrace> stackTrace) |  | 
| 166 { |  | 
| 167     return m_debugger->createStackTrace(stackTrace); |  | 
| 168 } |  | 
| 169 |  | 
| 170 std::unique_ptr<V8InspectorSession> V8InspectorImpl::connect(int contextGroupId,
      V8Inspector::Channel* channel, const StringView& state) |  | 
| 171 { |  | 
| 172     DCHECK(m_sessions.find(contextGroupId) == m_sessions.cend()); |  | 
| 173     std::unique_ptr<V8InspectorSessionImpl> session = V8InspectorSessionImpl::cr
     eate(this, contextGroupId, channel, state); |  | 
| 174     m_sessions[contextGroupId] = session.get(); |  | 
| 175     return std::move(session); |  | 
| 176 } |  | 
| 177 |  | 
| 178 void V8InspectorImpl::disconnect(V8InspectorSessionImpl* session) |  | 
| 179 { |  | 
| 180     DCHECK(m_sessions.find(session->contextGroupId()) != m_sessions.end()); |  | 
| 181     m_sessions.erase(session->contextGroupId()); |  | 
| 182 } |  | 
| 183 |  | 
| 184 InspectedContext* V8InspectorImpl::getContext(int groupId, int contextId) const |  | 
| 185 { |  | 
| 186     if (!groupId || !contextId) |  | 
| 187         return nullptr; |  | 
| 188 |  | 
| 189     ContextsByGroupMap::const_iterator contextGroupIt = m_contexts.find(groupId)
     ; |  | 
| 190     if (contextGroupIt == m_contexts.end()) |  | 
| 191         return nullptr; |  | 
| 192 |  | 
| 193     ContextByIdMap::iterator contextIt = contextGroupIt->second->find(contextId)
     ; |  | 
| 194     if (contextIt == contextGroupIt->second->end()) |  | 
| 195         return nullptr; |  | 
| 196 |  | 
| 197     return contextIt->second.get(); |  | 
| 198 } |  | 
| 199 |  | 
| 200 void V8InspectorImpl::contextCreated(const V8ContextInfo& info) |  | 
| 201 { |  | 
| 202     int contextId = m_debugger->markContext(info); |  | 
| 203 |  | 
| 204     ContextsByGroupMap::iterator contextIt = m_contexts.find(info.contextGroupId
     ); |  | 
| 205     if (contextIt == m_contexts.end()) |  | 
| 206         contextIt = m_contexts.insert(std::make_pair(info.contextGroupId, wrapUn
     ique(new ContextByIdMap()))).first; |  | 
| 207 |  | 
| 208     const auto& contextById = contextIt->second; |  | 
| 209 |  | 
| 210     DCHECK(contextById->find(contextId) == contextById->cend()); |  | 
| 211     InspectedContext* context = new InspectedContext(this, info, contextId); |  | 
| 212     (*contextById)[contextId] = wrapUnique(context); |  | 
| 213     SessionMap::iterator sessionIt = m_sessions.find(info.contextGroupId); |  | 
| 214     if (sessionIt != m_sessions.end()) |  | 
| 215         sessionIt->second->runtimeAgent()->reportExecutionContextCreated(context
     ); |  | 
| 216 } |  | 
| 217 |  | 
| 218 void V8InspectorImpl::contextDestroyed(v8::Local<v8::Context> context) |  | 
| 219 { |  | 
| 220     int contextId = V8Debugger::contextId(context); |  | 
| 221     int contextGroupId = V8Debugger::getGroupId(context); |  | 
| 222 |  | 
| 223     ConsoleStorageMap::iterator storageIt = m_consoleStorageMap.find(contextGrou
     pId); |  | 
| 224     if (storageIt != m_consoleStorageMap.end()) |  | 
| 225         storageIt->second->contextDestroyed(contextId); |  | 
| 226 |  | 
| 227     InspectedContext* inspectedContext = getContext(contextGroupId, contextId); |  | 
| 228     if (!inspectedContext) |  | 
| 229         return; |  | 
| 230 |  | 
| 231     SessionMap::iterator iter = m_sessions.find(contextGroupId); |  | 
| 232     if (iter != m_sessions.end()) |  | 
| 233         iter->second->runtimeAgent()->reportExecutionContextDestroyed(inspectedC
     ontext); |  | 
| 234     discardInspectedContext(contextGroupId, contextId); |  | 
| 235 } |  | 
| 236 |  | 
| 237 void V8InspectorImpl::resetContextGroup(int contextGroupId) |  | 
| 238 { |  | 
| 239     m_consoleStorageMap.erase(contextGroupId); |  | 
| 240     m_muteExceptionsMap.erase(contextGroupId); |  | 
| 241     SessionMap::iterator session = m_sessions.find(contextGroupId); |  | 
| 242     if (session != m_sessions.end()) |  | 
| 243         session->second->reset(); |  | 
| 244     m_contexts.erase(contextGroupId); |  | 
| 245 } |  | 
| 246 |  | 
| 247 void V8InspectorImpl::willExecuteScript(v8::Local<v8::Context> context, int scri
     ptId) |  | 
| 248 { |  | 
| 249     if (V8DebuggerAgentImpl* agent = enabledDebuggerAgentForGroup(V8Debugger::ge
     tGroupId(context))) |  | 
| 250         agent->willExecuteScript(scriptId); |  | 
| 251 } |  | 
| 252 |  | 
| 253 void V8InspectorImpl::didExecuteScript(v8::Local<v8::Context> context) |  | 
| 254 { |  | 
| 255     if (V8DebuggerAgentImpl* agent = enabledDebuggerAgentForGroup(V8Debugger::ge
     tGroupId(context))) |  | 
| 256         agent->didExecuteScript(); |  | 
| 257 } |  | 
| 258 |  | 
| 259 void V8InspectorImpl::idleStarted() |  | 
| 260 { |  | 
| 261     m_isolate->GetCpuProfiler()->SetIdle(true); |  | 
| 262 } |  | 
| 263 |  | 
| 264 void V8InspectorImpl::idleFinished() |  | 
| 265 { |  | 
| 266     m_isolate->GetCpuProfiler()->SetIdle(false); |  | 
| 267 } |  | 
| 268 |  | 
| 269 unsigned V8InspectorImpl::exceptionThrown(v8::Local<v8::Context> context, const 
     StringView& message, v8::Local<v8::Value> exception, const StringView& detailedM
     essage, const StringView& url, unsigned lineNumber, unsigned columnNumber, std::
     unique_ptr<V8StackTrace> stackTrace, int scriptId) |  | 
| 270 { |  | 
| 271     int contextGroupId = V8Debugger::getGroupId(context); |  | 
| 272     if (!contextGroupId || m_muteExceptionsMap[contextGroupId]) |  | 
| 273         return 0; |  | 
| 274     std::unique_ptr<V8StackTraceImpl> stackTraceImpl = wrapUnique(static_cast<V8
     StackTraceImpl*>(stackTrace.release())); |  | 
| 275     unsigned exceptionId = nextExceptionId(); |  | 
| 276     std::unique_ptr<V8ConsoleMessage> consoleMessage = V8ConsoleMessage::createF
     orException(m_client->currentTimeMS(), toString16(detailedMessage), toString16(u
     rl), lineNumber, columnNumber, std::move(stackTraceImpl), scriptId, m_isolate, t
     oString16(message), V8Debugger::contextId(context), exception, exceptionId); |  | 
| 277     ensureConsoleMessageStorage(contextGroupId)->addMessage(std::move(consoleMes
     sage)); |  | 
| 278     return exceptionId; |  | 
| 279 } |  | 
| 280 |  | 
| 281 void V8InspectorImpl::exceptionRevoked(v8::Local<v8::Context> context, unsigned 
     exceptionId, const StringView& message) |  | 
| 282 { |  | 
| 283     int contextGroupId = V8Debugger::getGroupId(context); |  | 
| 284     if (!contextGroupId) |  | 
| 285         return; |  | 
| 286 |  | 
| 287     std::unique_ptr<V8ConsoleMessage> consoleMessage = V8ConsoleMessage::createF
     orRevokedException(m_client->currentTimeMS(), toString16(message), exceptionId); |  | 
| 288     ensureConsoleMessageStorage(contextGroupId)->addMessage(std::move(consoleMes
     sage)); |  | 
| 289 } |  | 
| 290 |  | 
| 291 std::unique_ptr<V8StackTrace> V8InspectorImpl::captureStackTrace(bool fullStack) |  | 
| 292 { |  | 
| 293     return m_debugger->captureStackTrace(fullStack); |  | 
| 294 } |  | 
| 295 |  | 
| 296 void V8InspectorImpl::asyncTaskScheduled(const StringView& taskName, void* task,
      bool recurring) |  | 
| 297 { |  | 
| 298     m_debugger->asyncTaskScheduled(taskName, task, recurring); |  | 
| 299 } |  | 
| 300 |  | 
| 301 void V8InspectorImpl::asyncTaskCanceled(void* task) |  | 
| 302 { |  | 
| 303     m_debugger->asyncTaskCanceled(task); |  | 
| 304 } |  | 
| 305 |  | 
| 306 void V8InspectorImpl::asyncTaskStarted(void* task) |  | 
| 307 { |  | 
| 308     m_debugger->asyncTaskStarted(task); |  | 
| 309 } |  | 
| 310 |  | 
| 311 void V8InspectorImpl::asyncTaskFinished(void* task) |  | 
| 312 { |  | 
| 313     m_debugger->asyncTaskFinished(task); |  | 
| 314 } |  | 
| 315 |  | 
| 316 void V8InspectorImpl::allAsyncTasksCanceled() |  | 
| 317 { |  | 
| 318     m_debugger->allAsyncTasksCanceled(); |  | 
| 319 } |  | 
| 320 |  | 
| 321 v8::Local<v8::Context> V8InspectorImpl::regexContext() |  | 
| 322 { |  | 
| 323     if (m_regexContext.IsEmpty()) |  | 
| 324         m_regexContext.Reset(m_isolate, v8::Context::New(m_isolate)); |  | 
| 325     return m_regexContext.Get(m_isolate); |  | 
| 326 } |  | 
| 327 |  | 
| 328 void V8InspectorImpl::discardInspectedContext(int contextGroupId, int contextId) |  | 
| 329 { |  | 
| 330     if (!getContext(contextGroupId, contextId)) |  | 
| 331         return; |  | 
| 332     m_contexts[contextGroupId]->erase(contextId); |  | 
| 333     if (m_contexts[contextGroupId]->empty()) |  | 
| 334         m_contexts.erase(contextGroupId); |  | 
| 335 } |  | 
| 336 |  | 
| 337 const V8InspectorImpl::ContextByIdMap* V8InspectorImpl::contextGroup(int context
     GroupId) |  | 
| 338 { |  | 
| 339     ContextsByGroupMap::iterator iter = m_contexts.find(contextGroupId); |  | 
| 340     return iter == m_contexts.end() ? nullptr : iter->second.get(); |  | 
| 341 } |  | 
| 342 |  | 
| 343 V8InspectorSessionImpl* V8InspectorImpl::sessionForContextGroup(int contextGroup
     Id) |  | 
| 344 { |  | 
| 345     if (!contextGroupId) |  | 
| 346         return nullptr; |  | 
| 347     SessionMap::iterator iter = m_sessions.find(contextGroupId); |  | 
| 348     return iter == m_sessions.end() ? nullptr : iter->second; |  | 
| 349 } |  | 
| 350 |  | 
| 351 } // namespace v8_inspector |  | 
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