| // Copyright 2014 The PDFium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #include "fxjs/cjs_global.h" |
| |
| #include <memory> |
| #include <utility> |
| #include <vector> |
| |
| #include "core/fxcrt/fx_extension.h" |
| #include "fxjs/cfx_globaldata.h" |
| #include "fxjs/cfx_keyvalue.h" |
| #include "fxjs/cjs_event_context.h" |
| #include "fxjs/cjs_object.h" |
| #include "fxjs/fxv8.h" |
| #include "fxjs/js_define.h" |
| #include "fxjs/js_resources.h" |
| #include "third_party/base/check.h" |
| #include "third_party/base/containers/contains.h" |
| #include "third_party/base/containers/span.h" |
| #include "v8/include/v8-isolate.h" |
| |
| namespace { |
| |
| ByteString ByteStringFromV8Name(v8::Isolate* pIsolate, |
| v8::Local<v8::Name> name) { |
| CHECK(name->IsString()); |
| return fxv8::ToByteString(pIsolate, name.As<v8::String>()); |
| } |
| |
| } // namespace |
| |
| CJS_Global::JSGlobalData::JSGlobalData() = default; |
| |
| CJS_Global::JSGlobalData::~JSGlobalData() = default; |
| |
| const JSMethodSpec CJS_Global::MethodSpecs[] = { |
| {"setPersistent", setPersistent_static}}; |
| |
| uint32_t CJS_Global::ObjDefnID = 0; |
| |
| // static |
| void CJS_Global::setPersistent_static( |
| const v8::FunctionCallbackInfo<v8::Value>& info) { |
| JSMethod<CJS_Global, &CJS_Global::setPersistent>("setPersistent", "global", |
| info); |
| } |
| |
| // static |
| void CJS_Global::queryprop_static( |
| v8::Local<v8::Name> property, |
| const v8::PropertyCallbackInfo<v8::Integer>& info) { |
| auto pObj = JSGetObject<CJS_Global>(info.GetIsolate(), info.Holder()); |
| if (!pObj) |
| return; |
| |
| ByteString bsProp = ByteStringFromV8Name(info.GetIsolate(), property); |
| if (pObj->HasProperty(bsProp)) |
| info.GetReturnValue().Set(static_cast<int>(v8::PropertyAttribute::None)); |
| } |
| |
| // static |
| void CJS_Global::getprop_static( |
| v8::Local<v8::Name> property, |
| const v8::PropertyCallbackInfo<v8::Value>& info) { |
| auto pObj = JSGetObject<CJS_Global>(info.GetIsolate(), info.Holder()); |
| if (!pObj) |
| return; |
| |
| CJS_Runtime* pRuntime = pObj->GetRuntime(); |
| if (!pRuntime) |
| return; |
| |
| ByteString bsProp = ByteStringFromV8Name(info.GetIsolate(), property); |
| CJS_Result result = pObj->GetProperty(pRuntime, bsProp); |
| if (result.HasError()) { |
| pRuntime->Error( |
| JSFormatErrorString("global", "GetProperty", result.Error())); |
| return; |
| } |
| if (result.HasReturn()) |
| info.GetReturnValue().Set(result.Return()); |
| } |
| |
| // static |
| void CJS_Global::putprop_static( |
| v8::Local<v8::Name> property, |
| v8::Local<v8::Value> value, |
| const v8::PropertyCallbackInfo<v8::Value>& info) { |
| auto pObj = JSGetObject<CJS_Global>(info.GetIsolate(), info.Holder()); |
| if (!pObj) |
| return; |
| |
| CJS_Runtime* pRuntime = pObj->GetRuntime(); |
| if (!pRuntime) |
| return; |
| |
| ByteString bsProp = ByteStringFromV8Name(info.GetIsolate(), property); |
| CJS_Result result = pObj->SetProperty(pRuntime, bsProp, value); |
| if (result.HasError()) { |
| pRuntime->Error( |
| JSFormatErrorString("global", "PutProperty", result.Error())); |
| return; |
| } |
| info.GetReturnValue().Set(value); |
| } |
| |
| // static |
| void CJS_Global::delprop_static( |
| v8::Local<v8::Name> property, |
| const v8::PropertyCallbackInfo<v8::Boolean>& info) { |
| auto pObj = JSGetObject<CJS_Global>(info.GetIsolate(), info.Holder()); |
| if (!pObj) |
| return; |
| |
| ByteString bsProp = ByteStringFromV8Name(info.GetIsolate(), property); |
| if (pObj->DelProperty(bsProp)) |
| info.GetReturnValue().Set(true); |
| } |
| |
| void CJS_Global::enumprop_static( |
| const v8::PropertyCallbackInfo<v8::Array>& info) { |
| auto pObj = JSGetObject<CJS_Global>(info.GetIsolate(), info.Holder()); |
| if (!pObj) |
| return; |
| |
| CJS_Runtime* pRuntime = pObj->GetRuntime(); |
| if (!pRuntime) |
| return; |
| |
| pObj->EnumProperties(pRuntime, info); |
| } |
| |
| // static |
| void CJS_Global::DefineAllProperties(CFXJS_Engine* pEngine) { |
| pEngine->DefineObjAllProperties( |
| ObjDefnID, CJS_Global::queryprop_static, CJS_Global::getprop_static, |
| CJS_Global::putprop_static, CJS_Global::delprop_static, |
| CJS_Global::enumprop_static); |
| } |
| |
| // static |
| uint32_t CJS_Global::GetObjDefnID() { |
| return ObjDefnID; |
| } |
| |
| // static |
| void CJS_Global::DefineJSObjects(CFXJS_Engine* pEngine) { |
| ObjDefnID = pEngine->DefineObj("global", FXJSOBJTYPE_STATIC, |
| JSConstructor<CJS_Global>, JSDestructor); |
| DefineMethods(pEngine, ObjDefnID, MethodSpecs); |
| DefineAllProperties(pEngine); |
| } |
| |
| CJS_Global::CJS_Global(v8::Local<v8::Object> pObject, CJS_Runtime* pRuntime) |
| : CJS_Object(pObject, pRuntime), |
| m_pGlobalData(CFX_GlobalData::GetRetainedInstance(nullptr)) { |
| UpdateGlobalPersistentVariables(); |
| } |
| |
| CJS_Global::~CJS_Global() { |
| DestroyGlobalPersisitentVariables(); |
| m_pGlobalData.ExtractAsDangling()->Release(); |
| } |
| |
| bool CJS_Global::HasProperty(const ByteString& propname) { |
| return pdfium::Contains(m_MapGlobal, propname); |
| } |
| |
| bool CJS_Global::DelProperty(const ByteString& propname) { |
| auto it = m_MapGlobal.find(propname); |
| if (it == m_MapGlobal.end()) |
| return false; |
| |
| it->second->bDeleted = true; |
| return true; |
| } |
| |
| CJS_Result CJS_Global::GetProperty(CJS_Runtime* pRuntime, |
| const ByteString& propname) { |
| auto it = m_MapGlobal.find(propname); |
| if (it == m_MapGlobal.end()) |
| return CJS_Result::Success(); |
| |
| JSGlobalData* pData = it->second.get(); |
| if (pData->bDeleted) |
| return CJS_Result::Success(); |
| |
| switch (pData->nType) { |
| case CFX_Value::DataType::kNumber: |
| return CJS_Result::Success(pRuntime->NewNumber(pData->dData)); |
| case CFX_Value::DataType::kBoolean: |
| return CJS_Result::Success(pRuntime->NewBoolean(pData->bData)); |
| case CFX_Value::DataType::kString: |
| return CJS_Result::Success( |
| pRuntime->NewString(pData->sData.AsStringView())); |
| case CFX_Value::DataType::kObject: |
| return CJS_Result::Success( |
| v8::Local<v8::Object>::New(pRuntime->GetIsolate(), pData->pData)); |
| case CFX_Value::DataType::kNull: |
| return CJS_Result::Success(pRuntime->NewNull()); |
| } |
| } |
| |
| CJS_Result CJS_Global::SetProperty(CJS_Runtime* pRuntime, |
| const ByteString& propname, |
| v8::Local<v8::Value> vp) { |
| if (vp->IsNumber()) { |
| return SetGlobalVariables(propname, CFX_Value::DataType::kNumber, |
| pRuntime->ToDouble(vp), false, ByteString(), |
| v8::Local<v8::Object>(), false); |
| } |
| if (vp->IsBoolean()) { |
| return SetGlobalVariables(propname, CFX_Value::DataType::kBoolean, 0, |
| pRuntime->ToBoolean(vp), ByteString(), |
| v8::Local<v8::Object>(), false); |
| } |
| if (vp->IsString()) { |
| return SetGlobalVariables(propname, CFX_Value::DataType::kString, 0, false, |
| pRuntime->ToByteString(vp), |
| v8::Local<v8::Object>(), false); |
| } |
| if (vp->IsObject()) { |
| return SetGlobalVariables(propname, CFX_Value::DataType::kObject, 0, false, |
| ByteString(), pRuntime->ToObject(vp), false); |
| } |
| if (vp->IsNull()) { |
| return SetGlobalVariables(propname, CFX_Value::DataType::kNull, 0, false, |
| ByteString(), v8::Local<v8::Object>(), false); |
| } |
| if (vp->IsUndefined()) { |
| DelProperty(propname); |
| return CJS_Result::Success(); |
| } |
| return CJS_Result::Failure(JSMessage::kObjectTypeError); |
| } |
| |
| void CJS_Global::EnumProperties( |
| CJS_Runtime* pRuntime, |
| const v8::PropertyCallbackInfo<v8::Array>& info) { |
| v8::Local<v8::Array> result = pRuntime->NewArray(); |
| int idx = 0; |
| for (const auto& it : m_MapGlobal) { |
| if (it.second->bDeleted) |
| continue; |
| v8::Local<v8::Name> name = pRuntime->NewString(it.first.AsStringView()); |
| pRuntime->PutArrayElement(result, idx, name); |
| ++idx; |
| } |
| info.GetReturnValue().Set(result); |
| } |
| |
| CJS_Result CJS_Global::setPersistent( |
| CJS_Runtime* pRuntime, |
| pdfium::span<v8::Local<v8::Value>> params) { |
| if (params.size() != 2) |
| return CJS_Result::Failure(JSMessage::kParamError); |
| |
| auto it = m_MapGlobal.find(pRuntime->ToByteString(params[0])); |
| if (it == m_MapGlobal.end() || it->second->bDeleted) |
| return CJS_Result::Failure(JSMessage::kGlobalNotFoundError); |
| |
| it->second->bPersistent = pRuntime->ToBoolean(params[1]); |
| return CJS_Result::Success(); |
| } |
| |
| void CJS_Global::UpdateGlobalPersistentVariables() { |
| CJS_Runtime* pRuntime = GetRuntime(); |
| if (!pRuntime) |
| return; |
| |
| for (int i = 0, sz = m_pGlobalData->GetSize(); i < sz; i++) { |
| CFX_GlobalData::Element* pData = m_pGlobalData->GetAt(i); |
| switch (pData->data.nType) { |
| case CFX_Value::DataType::kNumber: |
| SetGlobalVariables(pData->data.sKey, CFX_Value::DataType::kNumber, |
| pData->data.dData, false, ByteString(), |
| v8::Local<v8::Object>(), pData->bPersistent); |
| pRuntime->PutObjectProperty(ToV8Object(), |
| pData->data.sKey.AsStringView(), |
| pRuntime->NewNumber(pData->data.dData)); |
| break; |
| case CFX_Value::DataType::kBoolean: |
| SetGlobalVariables(pData->data.sKey, CFX_Value::DataType::kBoolean, 0, |
| pData->data.bData == 1, ByteString(), |
| v8::Local<v8::Object>(), pData->bPersistent); |
| pRuntime->PutObjectProperty( |
| ToV8Object(), pData->data.sKey.AsStringView(), |
| pRuntime->NewBoolean(pData->data.bData == 1)); |
| break; |
| case CFX_Value::DataType::kString: |
| SetGlobalVariables(pData->data.sKey, CFX_Value::DataType::kString, 0, |
| false, pData->data.sData, v8::Local<v8::Object>(), |
| pData->bPersistent); |
| pRuntime->PutObjectProperty( |
| ToV8Object(), pData->data.sKey.AsStringView(), |
| pRuntime->NewString(pData->data.sData.AsStringView())); |
| break; |
| case CFX_Value::DataType::kObject: { |
| v8::Local<v8::Object> pObj = pRuntime->NewObject(); |
| if (!pObj.IsEmpty()) { |
| PutObjectProperty(pObj, &pData->data); |
| SetGlobalVariables(pData->data.sKey, CFX_Value::DataType::kObject, 0, |
| false, ByteString(), pObj, pData->bPersistent); |
| pRuntime->PutObjectProperty(ToV8Object(), |
| pData->data.sKey.AsStringView(), pObj); |
| } |
| } break; |
| case CFX_Value::DataType::kNull: |
| SetGlobalVariables(pData->data.sKey, CFX_Value::DataType::kNull, 0, |
| false, ByteString(), v8::Local<v8::Object>(), |
| pData->bPersistent); |
| pRuntime->PutObjectProperty( |
| ToV8Object(), pData->data.sKey.AsStringView(), pRuntime->NewNull()); |
| break; |
| } |
| } |
| } |
| |
| void CJS_Global::CommitGlobalPersisitentVariables() { |
| CJS_Runtime* pRuntime = GetRuntime(); |
| if (!pRuntime) |
| return; |
| |
| for (const auto& iter : m_MapGlobal) { |
| ByteString name = iter.first; |
| JSGlobalData* pData = iter.second.get(); |
| if (pData->bDeleted) { |
| m_pGlobalData->DeleteGlobalVariable(name); |
| continue; |
| } |
| switch (pData->nType) { |
| case CFX_Value::DataType::kNumber: |
| m_pGlobalData->SetGlobalVariableNumber(name, pData->dData); |
| m_pGlobalData->SetGlobalVariablePersistent(name, pData->bPersistent); |
| break; |
| case CFX_Value::DataType::kBoolean: |
| m_pGlobalData->SetGlobalVariableBoolean(name, pData->bData); |
| m_pGlobalData->SetGlobalVariablePersistent(name, pData->bPersistent); |
| break; |
| case CFX_Value::DataType::kString: |
| m_pGlobalData->SetGlobalVariableString(name, pData->sData); |
| m_pGlobalData->SetGlobalVariablePersistent(name, pData->bPersistent); |
| break; |
| case CFX_Value::DataType::kObject: { |
| v8::Local<v8::Object> obj = |
| v8::Local<v8::Object>::New(pRuntime->GetIsolate(), pData->pData); |
| m_pGlobalData->SetGlobalVariableObject(name, |
| ObjectToArray(pRuntime, obj)); |
| m_pGlobalData->SetGlobalVariablePersistent(name, pData->bPersistent); |
| } break; |
| case CFX_Value::DataType::kNull: |
| m_pGlobalData->SetGlobalVariableNull(name); |
| m_pGlobalData->SetGlobalVariablePersistent(name, pData->bPersistent); |
| break; |
| } |
| } |
| } |
| |
| std::vector<std::unique_ptr<CFX_KeyValue>> CJS_Global::ObjectToArray( |
| CJS_Runtime* pRuntime, |
| v8::Local<v8::Object> pObj) { |
| std::vector<std::unique_ptr<CFX_KeyValue>> array; |
| std::vector<WideString> pKeyList = pRuntime->GetObjectPropertyNames(pObj); |
| for (const auto& ws : pKeyList) { |
| ByteString sKey = ws.ToUTF8(); |
| v8::Local<v8::Value> v = |
| pRuntime->GetObjectProperty(pObj, sKey.AsStringView()); |
| if (v->IsNumber()) { |
| auto pObjElement = std::make_unique<CFX_KeyValue>(); |
| pObjElement->nType = CFX_Value::DataType::kNumber; |
| pObjElement->sKey = sKey; |
| pObjElement->dData = pRuntime->ToDouble(v); |
| array.push_back(std::move(pObjElement)); |
| continue; |
| } |
| if (v->IsBoolean()) { |
| auto pObjElement = std::make_unique<CFX_KeyValue>(); |
| pObjElement->nType = CFX_Value::DataType::kBoolean; |
| pObjElement->sKey = sKey; |
| pObjElement->dData = pRuntime->ToBoolean(v); |
| array.push_back(std::move(pObjElement)); |
| continue; |
| } |
| if (v->IsString()) { |
| ByteString sValue = pRuntime->ToByteString(v); |
| auto pObjElement = std::make_unique<CFX_KeyValue>(); |
| pObjElement->nType = CFX_Value::DataType::kString; |
| pObjElement->sKey = sKey; |
| pObjElement->sData = sValue; |
| array.push_back(std::move(pObjElement)); |
| continue; |
| } |
| if (v->IsObject()) { |
| auto pObjElement = std::make_unique<CFX_KeyValue>(); |
| pObjElement->nType = CFX_Value::DataType::kObject; |
| pObjElement->sKey = sKey; |
| pObjElement->objData = ObjectToArray(pRuntime, pRuntime->ToObject(v)); |
| array.push_back(std::move(pObjElement)); |
| continue; |
| } |
| if (v->IsNull()) { |
| auto pObjElement = std::make_unique<CFX_KeyValue>(); |
| pObjElement->nType = CFX_Value::DataType::kNull; |
| pObjElement->sKey = sKey; |
| array.push_back(std::move(pObjElement)); |
| } |
| } |
| return array; |
| } |
| |
| void CJS_Global::PutObjectProperty(v8::Local<v8::Object> pObj, |
| CFX_KeyValue* pData) { |
| CJS_Runtime* pRuntime = GetRuntime(); |
| if (pRuntime) |
| return; |
| |
| for (size_t i = 0; i < pData->objData.size(); ++i) { |
| CFX_KeyValue* pObjData = pData->objData.at(i).get(); |
| switch (pObjData->nType) { |
| case CFX_Value::DataType::kNumber: |
| pRuntime->PutObjectProperty(pObj, pObjData->sKey.AsStringView(), |
| pRuntime->NewNumber(pObjData->dData)); |
| break; |
| case CFX_Value::DataType::kBoolean: |
| pRuntime->PutObjectProperty(pObj, pObjData->sKey.AsStringView(), |
| pRuntime->NewBoolean(pObjData->bData == 1)); |
| break; |
| case CFX_Value::DataType::kString: |
| pRuntime->PutObjectProperty( |
| pObj, pObjData->sKey.AsStringView(), |
| pRuntime->NewString(pObjData->sData.AsStringView())); |
| break; |
| case CFX_Value::DataType::kObject: { |
| v8::Local<v8::Object> pNewObj = pRuntime->NewObject(); |
| if (!pNewObj.IsEmpty()) { |
| PutObjectProperty(pNewObj, pObjData); |
| pRuntime->PutObjectProperty(pObj, pObjData->sKey.AsStringView(), |
| pNewObj); |
| } |
| } break; |
| case CFX_Value::DataType::kNull: |
| pRuntime->PutObjectProperty(pObj, pObjData->sKey.AsStringView(), |
| pRuntime->NewNull()); |
| break; |
| } |
| } |
| } |
| |
| void CJS_Global::DestroyGlobalPersisitentVariables() { |
| m_MapGlobal.clear(); |
| } |
| |
| CJS_Result CJS_Global::SetGlobalVariables(const ByteString& propname, |
| CFX_Value::DataType nType, |
| double dData, |
| bool bData, |
| const ByteString& sData, |
| v8::Local<v8::Object> pData, |
| bool bDefaultPersistent) { |
| if (propname.IsEmpty()) |
| return CJS_Result::Failure(JSMessage::kUnknownProperty); |
| |
| auto it = m_MapGlobal.find(propname); |
| if (it != m_MapGlobal.end()) { |
| JSGlobalData* pTemp = it->second.get(); |
| if (pTemp->bDeleted || pTemp->nType != nType) { |
| pTemp->dData = 0; |
| pTemp->bData = false; |
| pTemp->sData.clear(); |
| pTemp->nType = nType; |
| } |
| pTemp->bDeleted = false; |
| switch (nType) { |
| case CFX_Value::DataType::kNumber: |
| pTemp->dData = dData; |
| break; |
| case CFX_Value::DataType::kBoolean: |
| pTemp->bData = bData; |
| break; |
| case CFX_Value::DataType::kString: |
| pTemp->sData = sData; |
| break; |
| case CFX_Value::DataType::kObject: |
| pTemp->pData.Reset(pData->GetIsolate(), pData); |
| break; |
| case CFX_Value::DataType::kNull: |
| break; |
| } |
| return CJS_Result::Success(); |
| } |
| |
| auto pNewData = std::make_unique<JSGlobalData>(); |
| switch (nType) { |
| case CFX_Value::DataType::kNumber: |
| pNewData->nType = CFX_Value::DataType::kNumber; |
| pNewData->dData = dData; |
| pNewData->bPersistent = bDefaultPersistent; |
| break; |
| case CFX_Value::DataType::kBoolean: |
| pNewData->nType = CFX_Value::DataType::kBoolean; |
| pNewData->bData = bData; |
| pNewData->bPersistent = bDefaultPersistent; |
| break; |
| case CFX_Value::DataType::kString: |
| pNewData->nType = CFX_Value::DataType::kString; |
| pNewData->sData = sData; |
| pNewData->bPersistent = bDefaultPersistent; |
| break; |
| case CFX_Value::DataType::kObject: |
| pNewData->nType = CFX_Value::DataType::kObject; |
| pNewData->pData.Reset(pData->GetIsolate(), pData); |
| pNewData->bPersistent = bDefaultPersistent; |
| break; |
| case CFX_Value::DataType::kNull: |
| pNewData->nType = CFX_Value::DataType::kNull; |
| pNewData->bPersistent = bDefaultPersistent; |
| break; |
| } |
| m_MapGlobal[propname] = std::move(pNewData); |
| return CJS_Result::Success(); |
| } |
