// Copyright 2014 PDFium Authors. All rights reserved. // 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 "fpdfsdk/javascript/global.h" #include #include #include #include #include "core/fxcrt/fx_extension.h" #include "fpdfsdk/javascript/JS_Define.h" #include "fpdfsdk/javascript/JS_EventHandler.h" #include "fpdfsdk/javascript/JS_GlobalData.h" #include "fpdfsdk/javascript/JS_KeyValue.h" #include "fpdfsdk/javascript/JS_Object.h" #include "fpdfsdk/javascript/JS_Value.h" #include "fpdfsdk/javascript/cjs_event_context.h" #include "fpdfsdk/javascript/resource.h" #define IMPLEMENT_SPECIAL_JS_CLASS(js_class_name, class_alternate, class_name) \ IMPLEMENT_JS_CLASS_BASE_PART(js_class_name, class_name) \ IMPLEMENT_JS_CLASS_CONST_PART(js_class_name, class_name) \ IMPLEMENT_JS_CLASS_PART(js_class_name, class_alternate, class_name) \ void js_class_name::queryprop_static( \ v8::Local property, \ const v8::PropertyCallbackInfo& info) { \ JSSpecialPropQuery(#class_name, property, info); \ } \ void js_class_name::getprop_static( \ v8::Local property, \ const v8::PropertyCallbackInfo& info) { \ JSSpecialPropGet(#class_name, property, info); \ } \ void js_class_name::putprop_static( \ v8::Local property, v8::Local value, \ const v8::PropertyCallbackInfo& info) { \ JSSpecialPropPut(#class_name, property, value, info); \ } \ void js_class_name::delprop_static( \ v8::Local property, \ const v8::PropertyCallbackInfo& info) { \ JSSpecialPropDel(#class_name, property, info); \ } \ void js_class_name::DefineAllProperties(CFXJS_Engine* pEngine) { \ pEngine->DefineObjAllProperties( \ g_nObjDefnID, js_class_name::queryprop_static, \ js_class_name::getprop_static, js_class_name::putprop_static, \ js_class_name::delprop_static); \ } \ void js_class_name::DefineJSObjects(CFXJS_Engine* pEngine, \ FXJSOBJTYPE eObjType) { \ g_nObjDefnID = pEngine->DefineObj(js_class_name::g_pClassName, eObjType, \ JSConstructor, JSDestructor); \ DefineConsts(pEngine); \ DefineProps(pEngine); \ DefineMethods(pEngine); \ DefineAllProperties(pEngine); \ } namespace { template void JSSpecialPropQuery(const char*, v8::Local property, const v8::PropertyCallbackInfo& info) { CJS_Runtime* pRuntime = CJS_Runtime::CurrentRuntimeFromIsolate(info.GetIsolate()); if (!pRuntime) return; CJS_Object* pJSObj = static_cast(pRuntime->GetObjectPrivate(info.Holder())); if (!pJSObj) return; Alt* pObj = reinterpret_cast(pJSObj->GetEmbedObject()); v8::String::Utf8Value utf8_value(property); WideString propname = WideString::FromUTF8(ByteStringView(*utf8_value, utf8_value.length())); bool bRet = pObj->QueryProperty(propname.c_str()); info.GetReturnValue().Set(bRet ? 4 : 0); } template void JSSpecialPropGet(const char* class_name, v8::Local property, const v8::PropertyCallbackInfo& info) { CJS_Runtime* pRuntime = CJS_Runtime::CurrentRuntimeFromIsolate(info.GetIsolate()); if (!pRuntime) return; CJS_Object* pJSObj = static_cast(pRuntime->GetObjectPrivate(info.Holder())); if (!pJSObj) return; Alt* pObj = reinterpret_cast(pJSObj->GetEmbedObject()); v8::String::Utf8Value utf8_value(property); WideString propname = WideString::FromUTF8(ByteStringView(*utf8_value, utf8_value.length())); CJS_Value value; if (!pObj->GetProperty(pRuntime, propname.c_str(), &value)) { pRuntime->Error(JSFormatErrorString(class_name, "GetProperty", L"")); return; } if (!value.ToV8Value().IsEmpty()) info.GetReturnValue().Set(value.ToV8Value()); } template void JSSpecialPropPut(const char* class_name, v8::Local property, v8::Local value, const v8::PropertyCallbackInfo& info) { CJS_Runtime* pRuntime = CJS_Runtime::CurrentRuntimeFromIsolate(info.GetIsolate()); if (!pRuntime) return; CJS_Object* pJSObj = static_cast(pRuntime->GetObjectPrivate(info.Holder())); if (!pJSObj) return; Alt* pObj = reinterpret_cast(pJSObj->GetEmbedObject()); v8::String::Utf8Value utf8_value(property); WideString propname = WideString::FromUTF8(ByteStringView(*utf8_value, utf8_value.length())); if (!pObj->SetProperty(pRuntime, propname.c_str(), value)) pRuntime->Error(JSFormatErrorString(class_name, "PutProperty", L"")); } template void JSSpecialPropDel(const char* class_name, v8::Local property, const v8::PropertyCallbackInfo& info) { CJS_Runtime* pRuntime = CJS_Runtime::CurrentRuntimeFromIsolate(info.GetIsolate()); if (!pRuntime) return; CJS_Object* pJSObj = static_cast(pRuntime->GetObjectPrivate(info.Holder())); if (!pJSObj) return; Alt* pObj = reinterpret_cast(pJSObj->GetEmbedObject()); v8::String::Utf8Value utf8_value(property); WideString propname = WideString::FromUTF8(ByteStringView(*utf8_value, utf8_value.length())); if (!pObj->DelProperty(pRuntime, propname.c_str())) { ByteString cbName; cbName.Format("%s.%s", class_name, "DelProperty"); // Probably a missing call to JSFX_Error(). } } struct JSGlobalData { JSGlobalData(); ~JSGlobalData(); JS_GlobalDataType nType; double dData; bool bData; ByteString sData; v8::Global pData; bool bPersistent; bool bDeleted; }; class JSGlobalAlternate : public CJS_EmbedObj { public: explicit JSGlobalAlternate(CJS_Object* pJSObject); ~JSGlobalAlternate() override; bool setPersistent(CJS_Runtime* pRuntime, const std::vector>& params, CJS_Value& vRet, WideString& sError); bool QueryProperty(const wchar_t* propname); bool GetProperty(CJS_Runtime* pRuntime, const wchar_t* propname, CJS_Value* vp); bool SetProperty(CJS_Runtime* pRuntime, const wchar_t* propname, v8::Local vp); bool DelProperty(CJS_Runtime* pRuntime, const wchar_t* propname); void Initial(CPDFSDK_FormFillEnvironment* pFormFillEnv); private: void UpdateGlobalPersistentVariables(); void CommitGlobalPersisitentVariables(CJS_Runtime* pRuntime); void DestroyGlobalPersisitentVariables(); bool SetGlobalVariables(const ByteString& propname, JS_GlobalDataType nType, double dData, bool bData, const ByteString& sData, v8::Local pData, bool bDefaultPersistent); void ObjectToArray(CJS_Runtime* pRuntime, v8::Local pObj, CJS_GlobalVariableArray& array); void PutObjectProperty(v8::Local obj, CJS_KeyValue* pData); std::map> m_MapGlobal; WideString m_sFilePath; CJS_GlobalData* m_pGlobalData; CPDFSDK_FormFillEnvironment::ObservedPtr m_pFormFillEnv; }; } // namespace JSConstSpec CJS_Global::ConstSpecs[] = {{0, JSConstSpec::Number, 0, 0}}; JSPropertySpec CJS_Global::PropertySpecs[] = {{0, 0, 0}}; JSMethodSpec CJS_Global::MethodSpecs[] = { {"setPersistent", setPersistent_static}, {0, 0}}; IMPLEMENT_SPECIAL_JS_CLASS(CJS_Global, JSGlobalAlternate, global); // static void CJS_Global::setPersistent_static( const v8::FunctionCallbackInfo& info) { JSMethod( "setPersistent", "global", info); } void CJS_Global::InitInstance(IJS_Runtime* pIRuntime) { CJS_Runtime* pRuntime = static_cast(pIRuntime); JSGlobalAlternate* pGlobal = static_cast(GetEmbedObject()); pGlobal->Initial(pRuntime->GetFormFillEnv()); } JSGlobalData::JSGlobalData() : nType(JS_GlobalDataType::NUMBER), dData(0), bData(false), sData(""), bPersistent(false), bDeleted(false) {} JSGlobalData::~JSGlobalData() { pData.Reset(); } JSGlobalAlternate::JSGlobalAlternate(CJS_Object* pJSObject) : CJS_EmbedObj(pJSObject), m_pFormFillEnv(nullptr) {} JSGlobalAlternate::~JSGlobalAlternate() { DestroyGlobalPersisitentVariables(); m_pGlobalData->Release(); } void JSGlobalAlternate::Initial(CPDFSDK_FormFillEnvironment* pFormFillEnv) { m_pFormFillEnv.Reset(pFormFillEnv); m_pGlobalData = CJS_GlobalData::GetRetainedInstance(pFormFillEnv); UpdateGlobalPersistentVariables(); } bool JSGlobalAlternate::QueryProperty(const wchar_t* propname) { return WideString(propname) != L"setPersistent"; } bool JSGlobalAlternate::DelProperty(CJS_Runtime* pRuntime, const wchar_t* propname) { auto it = m_MapGlobal.find(ByteString::FromUnicode(propname)); if (it == m_MapGlobal.end()) return false; it->second->bDeleted = true; return true; } bool JSGlobalAlternate::GetProperty(CJS_Runtime* pRuntime, const wchar_t* propname, CJS_Value* vp) { auto it = m_MapGlobal.find(ByteString::FromUnicode(propname)); if (it == m_MapGlobal.end()) return true; JSGlobalData* pData = it->second.get(); if (pData->bDeleted) return true; switch (pData->nType) { case JS_GlobalDataType::NUMBER: vp->Set(pRuntime->NewNumber(pData->dData)); return true; case JS_GlobalDataType::BOOLEAN: vp->Set(pRuntime->NewBoolean(pData->bData)); return true; case JS_GlobalDataType::STRING: vp->Set(pRuntime->NewString( WideString::FromLocal(pData->sData.c_str()).c_str())); return true; case JS_GlobalDataType::OBJECT: { vp->Set(v8::Local::New(pRuntime->GetIsolate(), pData->pData)); return true; } case JS_GlobalDataType::NULLOBJ: vp->Set(pRuntime->NewNull()); return true; default: break; } return false; } bool JSGlobalAlternate::SetProperty(CJS_Runtime* pRuntime, const wchar_t* propname, v8::Local vp) { ByteString sPropName = ByteString::FromUnicode(propname); if (vp->IsNumber()) { return SetGlobalVariables(sPropName, JS_GlobalDataType::NUMBER, pRuntime->ToDouble(vp), false, "", v8::Local(), false); } if (vp->IsBoolean()) { return SetGlobalVariables(sPropName, JS_GlobalDataType::BOOLEAN, 0, pRuntime->ToBoolean(vp), "", v8::Local(), false); } if (vp->IsString()) { return SetGlobalVariables( sPropName, JS_GlobalDataType::STRING, 0, false, ByteString::FromUnicode(pRuntime->ToWideString(vp)), v8::Local(), false); } if (vp->IsObject()) { return SetGlobalVariables(sPropName, JS_GlobalDataType::OBJECT, 0, false, "", pRuntime->ToObject(vp), false); } if (vp->IsNull()) { return SetGlobalVariables(sPropName, JS_GlobalDataType::NULLOBJ, 0, false, "", v8::Local(), false); } if (vp->IsUndefined()) { DelProperty(pRuntime, propname); return true; } return false; } bool JSGlobalAlternate::setPersistent( CJS_Runtime* pRuntime, const std::vector>& params, CJS_Value& vRet, WideString& sError) { if (params.size() != 2) { sError = JSGetStringFromID(IDS_STRING_JSPARAMERROR); return false; } auto it = m_MapGlobal.find( ByteString::FromUnicode(pRuntime->ToWideString(params[0]))); if (it == m_MapGlobal.end() || it->second->bDeleted) { sError = JSGetStringFromID(IDS_STRING_JSNOGLOBAL); return false; } it->second->bPersistent = pRuntime->ToBoolean(params[1]); return true; } void JSGlobalAlternate::UpdateGlobalPersistentVariables() { CJS_Runtime* pRuntime = static_cast(CFXJS_Engine::CurrentEngineFromIsolate( m_pJSObject->ToV8Object()->GetIsolate())); for (int i = 0, sz = m_pGlobalData->GetSize(); i < sz; i++) { CJS_GlobalData_Element* pData = m_pGlobalData->GetAt(i); switch (pData->data.nType) { case JS_GlobalDataType::NUMBER: SetGlobalVariables(pData->data.sKey, JS_GlobalDataType::NUMBER, pData->data.dData, false, "", v8::Local(), pData->bPersistent == 1); pRuntime->PutObjectProperty(m_pJSObject->ToV8Object(), pData->data.sKey.UTF8Decode(), pRuntime->NewNumber(pData->data.dData)); break; case JS_GlobalDataType::BOOLEAN: SetGlobalVariables(pData->data.sKey, JS_GlobalDataType::BOOLEAN, 0, pData->data.bData == 1, "", v8::Local(), pData->bPersistent == 1); pRuntime->PutObjectProperty( m_pJSObject->ToV8Object(), pData->data.sKey.UTF8Decode(), pRuntime->NewBoolean(pData->data.bData == 1)); break; case JS_GlobalDataType::STRING: SetGlobalVariables(pData->data.sKey, JS_GlobalDataType::STRING, 0, false, pData->data.sData, v8::Local(), pData->bPersistent == 1); pRuntime->PutObjectProperty( m_pJSObject->ToV8Object(), pData->data.sKey.UTF8Decode(), pRuntime->NewString(pData->data.sData.UTF8Decode().AsStringView())); break; case JS_GlobalDataType::OBJECT: { v8::Local pObj = pRuntime->NewFxDynamicObj(-1); if (!pObj.IsEmpty()) { PutObjectProperty(pObj, &pData->data); SetGlobalVariables(pData->data.sKey, JS_GlobalDataType::OBJECT, 0, false, "", pObj, pData->bPersistent == 1); pRuntime->PutObjectProperty(m_pJSObject->ToV8Object(), pData->data.sKey.UTF8Decode(), pObj); } } break; case JS_GlobalDataType::NULLOBJ: SetGlobalVariables(pData->data.sKey, JS_GlobalDataType::NULLOBJ, 0, false, "", v8::Local(), pData->bPersistent == 1); pRuntime->PutObjectProperty(m_pJSObject->ToV8Object(), pData->data.sKey.UTF8Decode(), pRuntime->NewNull()); break; } } } void JSGlobalAlternate::CommitGlobalPersisitentVariables( CJS_Runtime* pRuntime) { 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 JS_GlobalDataType::NUMBER: m_pGlobalData->SetGlobalVariableNumber(name, pData->dData); m_pGlobalData->SetGlobalVariablePersistent(name, pData->bPersistent); break; case JS_GlobalDataType::BOOLEAN: m_pGlobalData->SetGlobalVariableBoolean(name, pData->bData); m_pGlobalData->SetGlobalVariablePersistent(name, pData->bPersistent); break; case JS_GlobalDataType::STRING: m_pGlobalData->SetGlobalVariableString(name, pData->sData); m_pGlobalData->SetGlobalVariablePersistent(name, pData->bPersistent); break; case JS_GlobalDataType::OBJECT: { CJS_GlobalVariableArray array; v8::Local obj = v8::Local::New( GetJSObject()->GetIsolate(), pData->pData); ObjectToArray(pRuntime, obj, array); m_pGlobalData->SetGlobalVariableObject(name, array); m_pGlobalData->SetGlobalVariablePersistent(name, pData->bPersistent); } break; case JS_GlobalDataType::NULLOBJ: m_pGlobalData->SetGlobalVariableNull(name); m_pGlobalData->SetGlobalVariablePersistent(name, pData->bPersistent); break; } } } void JSGlobalAlternate::ObjectToArray(CJS_Runtime* pRuntime, v8::Local pObj, CJS_GlobalVariableArray& array) { std::vector pKeyList = pRuntime->GetObjectPropertyNames(pObj); for (const auto& ws : pKeyList) { ByteString sKey = ws.UTF8Encode(); v8::Local v = pRuntime->GetObjectProperty(pObj, ws); if (v->IsNumber()) { CJS_KeyValue* pObjElement = new CJS_KeyValue; pObjElement->nType = JS_GlobalDataType::NUMBER; pObjElement->sKey = sKey; pObjElement->dData = pRuntime->ToDouble(v); array.Add(pObjElement); continue; } if (v->IsBoolean()) { CJS_KeyValue* pObjElement = new CJS_KeyValue; pObjElement->nType = JS_GlobalDataType::BOOLEAN; pObjElement->sKey = sKey; pObjElement->dData = pRuntime->ToBoolean(v); array.Add(pObjElement); continue; } if (v->IsString()) { ByteString sValue = ByteString::FromUnicode(pRuntime->ToWideString(v)); CJS_KeyValue* pObjElement = new CJS_KeyValue; pObjElement->nType = JS_GlobalDataType::STRING; pObjElement->sKey = sKey; pObjElement->sData = sValue; array.Add(pObjElement); continue; } if (v->IsObject()) { CJS_KeyValue* pObjElement = new CJS_KeyValue; pObjElement->nType = JS_GlobalDataType::OBJECT; pObjElement->sKey = sKey; ObjectToArray(pRuntime, pRuntime->ToObject(v), pObjElement->objData); array.Add(pObjElement); continue; } if (v->IsNull()) { CJS_KeyValue* pObjElement = new CJS_KeyValue; pObjElement->nType = JS_GlobalDataType::NULLOBJ; pObjElement->sKey = sKey; array.Add(pObjElement); } } } void JSGlobalAlternate::PutObjectProperty(v8::Local pObj, CJS_KeyValue* pData) { CJS_Runtime* pRuntime = CJS_Runtime::CurrentRuntimeFromIsolate( m_pJSObject->ToV8Object()->GetIsolate()); for (int i = 0, sz = pData->objData.Count(); i < sz; i++) { CJS_KeyValue* pObjData = pData->objData.GetAt(i); switch (pObjData->nType) { case JS_GlobalDataType::NUMBER: pRuntime->PutObjectProperty(pObj, pObjData->sKey.UTF8Decode(), pRuntime->NewNumber(pObjData->dData)); break; case JS_GlobalDataType::BOOLEAN: pRuntime->PutObjectProperty(pObj, pObjData->sKey.UTF8Decode(), pRuntime->NewBoolean(pObjData->bData == 1)); break; case JS_GlobalDataType::STRING: pRuntime->PutObjectProperty( pObj, pObjData->sKey.UTF8Decode(), pRuntime->NewString(pObjData->sData.UTF8Decode().AsStringView())); break; case JS_GlobalDataType::OBJECT: { v8::Local pNewObj = pRuntime->NewFxDynamicObj(-1); if (!pNewObj.IsEmpty()) { PutObjectProperty(pNewObj, pObjData); pRuntime->PutObjectProperty(pObj, pObjData->sKey.UTF8Decode(), pNewObj); } } break; case JS_GlobalDataType::NULLOBJ: pRuntime->PutObjectProperty(pObj, pObjData->sKey.UTF8Decode(), pRuntime->NewNull()); break; } } } void JSGlobalAlternate::DestroyGlobalPersisitentVariables() { m_MapGlobal.clear(); } bool JSGlobalAlternate::SetGlobalVariables(const ByteString& propname, JS_GlobalDataType nType, double dData, bool bData, const ByteString& sData, v8::Local pData, bool bDefaultPersistent) { if (propname.IsEmpty()) return false; 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 = 0; pTemp->sData = ""; pTemp->nType = nType; } pTemp->bDeleted = false; switch (nType) { case JS_GlobalDataType::NUMBER: pTemp->dData = dData; break; case JS_GlobalDataType::BOOLEAN: pTemp->bData = bData; break; case JS_GlobalDataType::STRING: pTemp->sData = sData; break; case JS_GlobalDataType::OBJECT: pTemp->pData.Reset(pData->GetIsolate(), pData); break; case JS_GlobalDataType::NULLOBJ: break; default: return false; } return true; } auto pNewData = pdfium::MakeUnique(); switch (nType) { case JS_GlobalDataType::NUMBER: pNewData->nType = JS_GlobalDataType::NUMBER; pNewData->dData = dData; pNewData->bPersistent = bDefaultPersistent; break; case JS_GlobalDataType::BOOLEAN: pNewData->nType = JS_GlobalDataType::BOOLEAN; pNewData->bData = bData; pNewData->bPersistent = bDefaultPersistent; break; case JS_GlobalDataType::STRING: pNewData->nType = JS_GlobalDataType::STRING; pNewData->sData = sData; pNewData->bPersistent = bDefaultPersistent; break; case JS_GlobalDataType::OBJECT: pNewData->nType = JS_GlobalDataType::OBJECT; pNewData->pData.Reset(pData->GetIsolate(), pData); pNewData->bPersistent = bDefaultPersistent; break; case JS_GlobalDataType::NULLOBJ: pNewData->nType = JS_GlobalDataType::NULLOBJ; pNewData->bPersistent = bDefaultPersistent; break; default: return false; } m_MapGlobal[propname] = std::move(pNewData); return true; }