[inspector] Initial import of v8_inspector.

src/inspector/V8InspectorSessionImpl.cpp

+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "src/inspector/V8InspectorSessionImpl.h"
+
+#include "src/inspector/InjectedScript.h"
+#include "src/inspector/InspectedContext.h"
+#include "src/inspector/RemoteObjectId.h"
+#include "src/inspector/SearchUtil.h"
+#include "src/inspector/StringUtil.h"
+#include "src/inspector/V8ConsoleAgentImpl.h"
+#include "src/inspector/V8Debugger.h"
+#include "src/inspector/V8DebuggerAgentImpl.h"
+#include "src/inspector/V8HeapProfilerAgentImpl.h"
+#include "src/inspector/V8InspectorImpl.h"
+#include "src/inspector/V8ProfilerAgentImpl.h"
+#include "src/inspector/V8RuntimeAgentImpl.h"
+#include "src/inspector/V8SchemaAgentImpl.h"
+#include "src/inspector/protocol/Protocol.h"
+#include "src/inspector/public/V8ContextInfo.h"
+#include "src/inspector/public/V8InspectorClient.h"
+
+namespace v8_inspector {
+
+// static
+bool V8InspectorSession::canDispatchMethod(const StringView& method) {
+  return stringViewStartsWith(method,
+                              protocol::Runtime::Metainfo::commandPrefix) ||
+         stringViewStartsWith(method,
+                              protocol::Debugger::Metainfo::commandPrefix) ||
+         stringViewStartsWith(method,
+                              protocol::Profiler::Metainfo::commandPrefix) ||
+         stringViewStartsWith(
+             method, protocol::HeapProfiler::Metainfo::commandPrefix) ||
+         stringViewStartsWith(method,
+                              protocol::Console::Metainfo::commandPrefix) ||
+         stringViewStartsWith(method,
+                              protocol::Schema::Metainfo::commandPrefix);
+}
+
+std::unique_ptr<V8InspectorSessionImpl> V8InspectorSessionImpl::create(
+    V8InspectorImpl* inspector, int contextGroupId,
+    V8Inspector::Channel* channel, const StringView& state) {
+  return wrapUnique(
+      new V8InspectorSessionImpl(inspector, contextGroupId, channel, state));
+}
+
+V8InspectorSessionImpl::V8InspectorSessionImpl(V8InspectorImpl* inspector,
+                                               int contextGroupId,
+                                               V8Inspector::Channel* channel,
+                                               const StringView& savedState)
+    : m_contextGroupId(contextGroupId),
+      m_inspector(inspector),
+      m_channel(channel),
+      m_customObjectFormatterEnabled(false),
+      m_dispatcher(this),
+      m_state(nullptr),
+      m_runtimeAgent(nullptr),
+      m_debuggerAgent(nullptr),
+      m_heapProfilerAgent(nullptr),
+      m_profilerAgent(nullptr),
+      m_consoleAgent(nullptr),
+      m_schemaAgent(nullptr) {
+  if (savedState.length()) {
+    std::unique_ptr<protocol::Value> state =
+        protocol::parseJSON(toString16(savedState));
+    if (state) m_state = protocol::DictionaryValue::cast(std::move(state));
+    if (!m_state) m_state = protocol::DictionaryValue::create();
+  } else {
+    m_state = protocol::DictionaryValue::create();
+  }
+
+  m_runtimeAgent = wrapUnique(new V8RuntimeAgentImpl(
+      this, this, agentState(protocol::Runtime::Metainfo::domainName)));
+  protocol::Runtime::Dispatcher::wire(&m_dispatcher, m_runtimeAgent.get());
+
+  m_debuggerAgent = wrapUnique(new V8DebuggerAgentImpl(
+      this, this, agentState(protocol::Debugger::Metainfo::domainName)));
+  protocol::Debugger::Dispatcher::wire(&m_dispatcher, m_debuggerAgent.get());
+
+  m_profilerAgent = wrapUnique(new V8ProfilerAgentImpl(
+      this, this, agentState(protocol::Profiler::Metainfo::domainName)));
+  protocol::Profiler::Dispatcher::wire(&m_dispatcher, m_profilerAgent.get());
+
+  m_heapProfilerAgent = wrapUnique(new V8HeapProfilerAgentImpl(
+      this, this, agentState(protocol::HeapProfiler::Metainfo::domainName)));
+  protocol::HeapProfiler::Dispatcher::wire(&m_dispatcher,
+                                           m_heapProfilerAgent.get());
+
+  m_consoleAgent = wrapUnique(new V8ConsoleAgentImpl(
+      this, this, agentState(protocol::Console::Metainfo::domainName)));
+  protocol::Console::Dispatcher::wire(&m_dispatcher, m_consoleAgent.get());
+
+  m_schemaAgent = wrapUnique(new V8SchemaAgentImpl(
+      this, this, agentState(protocol::Schema::Metainfo::domainName)));
+  protocol::Schema::Dispatcher::wire(&m_dispatcher, m_schemaAgent.get());
+
+  if (savedState.length()) {
+    m_runtimeAgent->restore();
+    m_debuggerAgent->restore();
+    m_heapProfilerAgent->restore();
+    m_profilerAgent->restore();
+    m_consoleAgent->restore();
+  }
+}
+
+V8InspectorSessionImpl::~V8InspectorSessionImpl() {
+  ErrorString errorString;
+  m_consoleAgent->disable(&errorString);
+  m_profilerAgent->disable(&errorString);
+  m_heapProfilerAgent->disable(&errorString);
+  m_debuggerAgent->disable(&errorString);
+  m_runtimeAgent->disable(&errorString);
+
+  discardInjectedScripts();
+  m_inspector->disconnect(this);
+}
+
+protocol::DictionaryValue* V8InspectorSessionImpl::agentState(
+    const String16& name) {
+  protocol::DictionaryValue* state = m_state->getObject(name);
+  if (!state) {
+    std::unique_ptr<protocol::DictionaryValue> newState =
+        protocol::DictionaryValue::create();
+    state = newState.get();
+    m_state->setObject(name, std::move(newState));
+  }
+  return state;
+}
+
+void V8InspectorSessionImpl::sendProtocolResponse(int callId,
+                                                  const String16& message) {
+  m_channel->sendProtocolResponse(callId, toStringView(message));
+}
+
+void V8InspectorSessionImpl::sendProtocolNotification(const String16& message) {
+  m_channel->sendProtocolNotification(toStringView(message));
+}
+
+void V8InspectorSessionImpl::flushProtocolNotifications() {
+  m_channel->flushProtocolNotifications();
+}
+
+void V8InspectorSessionImpl::reset() {
+  m_debuggerAgent->reset();
+  m_runtimeAgent->reset();
+  discardInjectedScripts();
+}
+
+void V8InspectorSessionImpl::discardInjectedScripts() {
+  m_inspectedObjects.clear();
+  const V8InspectorImpl::ContextByIdMap* contexts =
+      m_inspector->contextGroup(m_contextGroupId);
+  if (!contexts) return;
+
+  std::vector<int> keys;
+  keys.reserve(contexts->size());
+  for (auto& idContext : *contexts) keys.push_back(idContext.first);
+  for (auto& key : keys) {
+    contexts = m_inspector->contextGroup(m_contextGroupId);
+    if (!contexts) continue;
+    auto contextIt = contexts->find(key);
+    if (contextIt != contexts->end())
+      contextIt->second
+          ->discardInjectedScript();  // This may destroy some contexts.
+  }
+}
+
+InjectedScript* V8InspectorSessionImpl::findInjectedScript(
+    ErrorString* errorString, int contextId) {
+  if (!contextId) {
+    *errorString = "Cannot find context with specified id";
+    return nullptr;
+  }
+
+  const V8InspectorImpl::ContextByIdMap* contexts =
+      m_inspector->contextGroup(m_contextGroupId);
+  if (!contexts) {
+    *errorString = "Cannot find context with specified id";
+    return nullptr;
+  }
+
+  auto contextsIt = contexts->find(contextId);
+  if (contextsIt == contexts->end()) {
+    *errorString = "Cannot find context with specified id";
+    return nullptr;
+  }
+
+  const std::unique_ptr<InspectedContext>& context = contextsIt->second;
+  if (!context->getInjectedScript()) {
+    context->createInjectedScript();
+    if (!context->getInjectedScript()) {
+      *errorString = "Cannot access specified execution context";
+      return nullptr;
+    }
+    if (m_customObjectFormatterEnabled)
+      context->getInjectedScript()->setCustomObjectFormatterEnabled(true);
+  }
+  return context->getInjectedScript();
+}
+
+InjectedScript* V8InspectorSessionImpl::findInjectedScript(
+    ErrorString* errorString, RemoteObjectIdBase* objectId) {
+  return objectId ? findInjectedScript(errorString, objectId->contextId())
+                  : nullptr;
+}
+
+void V8InspectorSessionImpl::releaseObjectGroup(const StringView& objectGroup) {
+  releaseObjectGroup(toString16(objectGroup));
+}
+
+void V8InspectorSessionImpl::releaseObjectGroup(const String16& objectGroup) {
+  const V8InspectorImpl::ContextByIdMap* contexts =
+      m_inspector->contextGroup(m_contextGroupId);
+  if (!contexts) return;
+
+  std::vector<int> keys;
+  for (auto& idContext : *contexts) keys.push_back(idContext.first);
+  for (auto& key : keys) {
+    contexts = m_inspector->contextGroup(m_contextGroupId);
+    if (!contexts) continue;
+    auto contextsIt = contexts->find(key);
+    if (contextsIt == contexts->end()) continue;
+    InjectedScript* injectedScript = contextsIt->second->getInjectedScript();
+    if (injectedScript)
+      injectedScript->releaseObjectGroup(
+          objectGroup);  // This may destroy some contexts.
+  }
+}
+
+bool V8InspectorSessionImpl::unwrapObject(
+    std::unique_ptr<StringBuffer>* error, const StringView& objectId,
+    v8::Local<v8::Value>* object, v8::Local<v8::Context>* context,
+    std::unique_ptr<StringBuffer>* objectGroup) {
+  ErrorString errorString;
+  String16 objectGroupString;
+  bool result =
+      unwrapObject(&errorString, toString16(objectId), object, context,
+                   objectGroup ? &objectGroupString : nullptr);
+  if (error) *error = StringBufferImpl::adopt(errorString);
+  if (objectGroup) *objectGroup = StringBufferImpl::adopt(objectGroupString);
+  return result;
+}
+
+bool V8InspectorSessionImpl::unwrapObject(ErrorString* errorString,
+                                          const String16& objectId,
+                                          v8::Local<v8::Value>* object,
+                                          v8::Local<v8::Context>* context,
+                                          String16* objectGroup) {
+  std::unique_ptr<RemoteObjectId> remoteId =
+      RemoteObjectId::parse(errorString, objectId);
+  if (!remoteId) return false;
+  InjectedScript* injectedScript =
+      findInjectedScript(errorString, remoteId.get());
+  if (!injectedScript) return false;
+  if (!injectedScript->findObject(errorString, *remoteId, object)) return false;
+  *context = injectedScript->context()->context();
+  if (objectGroup) *objectGroup = injectedScript->objectGroupName(*remoteId);
+  return true;
+}
+
+std::unique_ptr<protocol::Runtime::API::RemoteObject>
+V8InspectorSessionImpl::wrapObject(v8::Local<v8::Context> context,
+                                   v8::Local<v8::Value> value,
+                                   const StringView& groupName) {
+  return wrapObject(context, value, toString16(groupName), false);
+}
+
+std::unique_ptr<protocol::Runtime::RemoteObject>
+V8InspectorSessionImpl::wrapObject(v8::Local<v8::Context> context,
+                                   v8::Local<v8::Value> value,
+                                   const String16& groupName,
+                                   bool generatePreview) {
+  ErrorString errorString;
+  InjectedScript* injectedScript =
+      findInjectedScript(&errorString, V8Debugger::contextId(context));
+  if (!injectedScript) return nullptr;
+  return injectedScript->wrapObject(&errorString, value, groupName, false,
+                                    generatePreview);
+}
+
+std::unique_ptr<protocol::Runtime::RemoteObject>
+V8InspectorSessionImpl::wrapTable(v8::Local<v8::Context> context,
+                                  v8::Local<v8::Value> table,
+                                  v8::Local<v8::Value> columns) {
+  ErrorString errorString;
+  InjectedScript* injectedScript =
+      findInjectedScript(&errorString, V8Debugger::contextId(context));
+  if (!injectedScript) return nullptr;
+  return injectedScript->wrapTable(table, columns);
+}
+
+void V8InspectorSessionImpl::setCustomObjectFormatterEnabled(bool enabled) {
+  m_customObjectFormatterEnabled = enabled;
+  const V8InspectorImpl::ContextByIdMap* contexts =
+      m_inspector->contextGroup(m_contextGroupId);
+  if (!contexts) return;
+  for (auto& idContext : *contexts) {
+    InjectedScript* injectedScript = idContext.second->getInjectedScript();
+    if (injectedScript)
+      injectedScript->setCustomObjectFormatterEnabled(enabled);
+  }
+}
+
+void V8InspectorSessionImpl::reportAllContexts(V8RuntimeAgentImpl* agent) {
+  const V8InspectorImpl::ContextByIdMap* contexts =
+      m_inspector->contextGroup(m_contextGroupId);
+  if (!contexts) return;
+  for (auto& idContext : *contexts)
+    agent->reportExecutionContextCreated(idContext.second.get());
+}
+
+void V8InspectorSessionImpl::dispatchProtocolMessage(
+    const StringView& message) {
+  m_dispatcher.dispatch(protocol::parseJSON(message));
+}
+
+std::unique_ptr<StringBuffer> V8InspectorSessionImpl::stateJSON() {
+  String16 json = m_state->toJSONString();
+  return StringBufferImpl::adopt(json);
+}
+
+std::vector<std::unique_ptr<protocol::Schema::API::Domain>>
+V8InspectorSessionImpl::supportedDomains() {
+  std::vector<std::unique_ptr<protocol::Schema::Domain>> domains =
+      supportedDomainsImpl();
+  std::vector<std::unique_ptr<protocol::Schema::API::Domain>> result;
+  for (size_t i = 0; i < domains.size(); ++i)
+    result.push_back(std::move(domains[i]));
+  return result;
+}
+
+std::vector<std::unique_ptr<protocol::Schema::Domain>>
+V8InspectorSessionImpl::supportedDomainsImpl() {
+  std::vector<std::unique_ptr<protocol::Schema::Domain>> result;
+  result.push_back(protocol::Schema::Domain::create()
+                       .setName(protocol::Runtime::Metainfo::domainName)
+                       .setVersion(protocol::Runtime::Metainfo::version)
+                       .build());
+  result.push_back(protocol::Schema::Domain::create()
+                       .setName(protocol::Debugger::Metainfo::domainName)
+                       .setVersion(protocol::Debugger::Metainfo::version)
+                       .build());
+  result.push_back(protocol::Schema::Domain::create()
+                       .setName(protocol::Profiler::Metainfo::domainName)
+                       .setVersion(protocol::Profiler::Metainfo::version)
+                       .build());
+  result.push_back(protocol::Schema::Domain::create()
+                       .setName(protocol::HeapProfiler::Metainfo::domainName)
+                       .setVersion(protocol::HeapProfiler::Metainfo::version)
+                       .build());
+  result.push_back(protocol::Schema::Domain::create()
+                       .setName(protocol::Schema::Metainfo::domainName)
+                       .setVersion(protocol::Schema::Metainfo::version)
+                       .build());
+  return result;
+}
+
+void V8InspectorSessionImpl::addInspectedObject(
+    std::unique_ptr<V8InspectorSession::Inspectable> inspectable) {
+  m_inspectedObjects.insert(m_inspectedObjects.begin(), std::move(inspectable));
+  if (m_inspectedObjects.size() > kInspectedObjectBufferSize)
+    m_inspectedObjects.resize(kInspectedObjectBufferSize);
+}
+
+V8InspectorSession::Inspectable* V8InspectorSessionImpl::inspectedObject(
+    unsigned num) {
+  if (num >= m_inspectedObjects.size()) return nullptr;
+  return m_inspectedObjects[num].get();
+}
+
+void V8InspectorSessionImpl::schedulePauseOnNextStatement(
+    const StringView& breakReason, const StringView& breakDetails) {
+  m_debuggerAgent->schedulePauseOnNextStatement(
+      toString16(breakReason),
+      protocol::DictionaryValue::cast(protocol::parseJSON(breakDetails)));
+}
+
+void V8InspectorSessionImpl::cancelPauseOnNextStatement() {
+  m_debuggerAgent->cancelPauseOnNextStatement();
+}
+
+void V8InspectorSessionImpl::breakProgram(const StringView& breakReason,
+                                          const StringView& breakDetails) {
+  m_debuggerAgent->breakProgram(
+      toString16(breakReason),
+      protocol::DictionaryValue::cast(protocol::parseJSON(breakDetails)));
+}
+
+void V8InspectorSessionImpl::setSkipAllPauses(bool skip) {
+  ErrorString errorString;
+  m_debuggerAgent->setSkipAllPauses(&errorString, skip);
+}
+
+void V8InspectorSessionImpl::resume() {
+  ErrorString errorString;
+  m_debuggerAgent->resume(&errorString);
+}
+
+void V8InspectorSessionImpl::stepOver() {
+  ErrorString errorString;
+  m_debuggerAgent->stepOver(&errorString);
+}
+
+std::vector<std::unique_ptr<protocol::Debugger::API::SearchMatch>>
+V8InspectorSessionImpl::searchInTextByLines(const StringView& text,
+                                            const StringView& query,
+                                            bool caseSensitive, bool isRegex) {
+  // TODO(dgozman): search may operate on StringView and avoid copying |text|.
+  std::vector<std::unique_ptr<protocol::Debugger::SearchMatch>> matches =
+      searchInTextByLinesImpl(this, toString16(text), toString16(query),
+                              caseSensitive, isRegex);
+  std::vector<std::unique_ptr<protocol::Debugger::API::SearchMatch>> result;
+  for (size_t i = 0; i < matches.size(); ++i)
+    result.push_back(std::move(matches[i]));
+  return result;
+}
+
+}  // namespace v8_inspector