| // 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 "core/fxcrt/include/fx_ext.h" |
| #include "xfa/fxfa/app/xfa_ffnotify.h" |
| #include "xfa/fxfa/parser/cscript_datawindow.h" |
| #include "xfa/fxfa/parser/cscript_eventpseudomodel.h" |
| #include "xfa/fxfa/parser/cscript_hostpseudomodel.h" |
| #include "xfa/fxfa/parser/cscript_layoutpseudomodel.h" |
| #include "xfa/fxfa/parser/cscript_logpseudomodel.h" |
| #include "xfa/fxfa/parser/cscript_signaturepseudomodel.h" |
| #include "xfa/fxfa/parser/cxfa_document.h" |
| #include "xfa/fxfa/parser/cxfa_document_parser.h" |
| #include "xfa/fxfa/parser/cxfa_layoutprocessor.h" |
| #include "xfa/fxfa/parser/cxfa_scriptcontext.h" |
| #include "xfa/fxfa/parser/xfa_localemgr.h" |
| #include "xfa/fxfa/parser/xfa_object.h" |
| #include "xfa/fxfa/parser/xfa_resolvenode_rs.h" |
| #include "xfa/fxfa/parser/xfa_utils.h" |
| |
| namespace { |
| |
| void MergeNodeRecurse(CXFA_Document* pDocument, |
| CXFA_Node* pDestNodeParent, |
| CXFA_Node* pProtoNode) { |
| CXFA_Node* pExistingNode = nullptr; |
| for (CXFA_Node* pFormChild = |
| pDestNodeParent->GetNodeItem(XFA_NODEITEM_FirstChild); |
| pFormChild; |
| pFormChild = pFormChild->GetNodeItem(XFA_NODEITEM_NextSibling)) { |
| if (pFormChild->GetElementType() == pProtoNode->GetElementType() && |
| pFormChild->GetNameHash() == pProtoNode->GetNameHash() && |
| pFormChild->IsUnusedNode()) { |
| pFormChild->ClearFlag(XFA_NodeFlag_UnusedNode); |
| pExistingNode = pFormChild; |
| break; |
| } |
| } |
| |
| if (pExistingNode) { |
| pExistingNode->SetTemplateNode(pProtoNode); |
| for (CXFA_Node* pTemplateChild = |
| pProtoNode->GetNodeItem(XFA_NODEITEM_FirstChild); |
| pTemplateChild; pTemplateChild = pTemplateChild->GetNodeItem( |
| XFA_NODEITEM_NextSibling)) { |
| MergeNodeRecurse(pDocument, pExistingNode, pTemplateChild); |
| } |
| return; |
| } |
| CXFA_Node* pNewNode = pProtoNode->Clone(TRUE); |
| pNewNode->SetTemplateNode(pProtoNode); |
| pDestNodeParent->InsertChild(pNewNode, nullptr); |
| } |
| |
| void MergeNode(CXFA_Document* pDocument, |
| CXFA_Node* pDestNode, |
| CXFA_Node* pProtoNode) { |
| { |
| CXFA_NodeIterator sIterator(pDestNode); |
| for (CXFA_Node* pNode = sIterator.GetCurrent(); pNode; |
| pNode = sIterator.MoveToNext()) { |
| pNode->SetFlag(XFA_NodeFlag_UnusedNode, true); |
| } |
| } |
| pDestNode->SetTemplateNode(pProtoNode); |
| for (CXFA_Node* pTemplateChild = |
| pProtoNode->GetNodeItem(XFA_NODEITEM_FirstChild); |
| pTemplateChild; |
| pTemplateChild = pTemplateChild->GetNodeItem(XFA_NODEITEM_NextSibling)) { |
| MergeNodeRecurse(pDocument, pDestNode, pTemplateChild); |
| } |
| { |
| CXFA_NodeIterator sIterator(pDestNode); |
| for (CXFA_Node* pNode = sIterator.GetCurrent(); pNode; |
| pNode = sIterator.MoveToNext()) { |
| pNode->ClearFlag(XFA_NodeFlag_UnusedNode); |
| } |
| } |
| } |
| |
| } // namespace |
| |
| CXFA_Document::CXFA_Document(CXFA_DocumentParser* pParser) |
| : m_pParser(pParser), |
| m_pScriptContext(nullptr), |
| m_pLayoutProcessor(nullptr), |
| m_pRootNode(nullptr), |
| m_pLocalMgr(nullptr), |
| m_pScriptDataWindow(nullptr), |
| m_pScriptEvent(nullptr), |
| m_pScriptHost(nullptr), |
| m_pScriptLog(nullptr), |
| m_pScriptLayout(nullptr), |
| m_pScriptSignature(nullptr), |
| m_eCurVersionMode(XFA_VERSION_DEFAULT), |
| m_dwDocFlags(0) { |
| ASSERT(m_pParser); |
| } |
| |
| CXFA_Document::~CXFA_Document() { |
| delete m_pRootNode; |
| PurgeNodes(); |
| } |
| |
| void CXFA_Document::ClearLayoutData() { |
| delete m_pLayoutProcessor; |
| m_pLayoutProcessor = nullptr; |
| delete m_pScriptContext; |
| m_pScriptContext = nullptr; |
| delete m_pLocalMgr; |
| m_pLocalMgr = nullptr; |
| delete m_pScriptDataWindow; |
| m_pScriptDataWindow = nullptr; |
| delete m_pScriptEvent; |
| m_pScriptEvent = nullptr; |
| delete m_pScriptHost; |
| m_pScriptHost = nullptr; |
| delete m_pScriptLog; |
| m_pScriptLog = nullptr; |
| delete m_pScriptLayout; |
| m_pScriptLayout = nullptr; |
| delete m_pScriptSignature; |
| m_pScriptSignature = nullptr; |
| } |
| |
| void CXFA_Document::SetRoot(CXFA_Node* pNewRoot) { |
| if (m_pRootNode) |
| AddPurgeNode(m_pRootNode); |
| |
| m_pRootNode = pNewRoot; |
| RemovePurgeNode(pNewRoot); |
| } |
| |
| CFDE_XMLDoc* CXFA_Document::GetXMLDoc() const { |
| return m_pParser->GetXMLDoc(); |
| } |
| |
| CXFA_FFNotify* CXFA_Document::GetNotify() const { |
| return m_pParser->GetNotify(); |
| } |
| |
| CXFA_Object* CXFA_Document::GetXFAObject(XFA_HashCode dwNodeNameHash) { |
| switch (dwNodeNameHash) { |
| case XFA_HASHCODE_Data: { |
| CXFA_Node* pDatasetsNode = ToNode(GetXFAObject(XFA_HASHCODE_Datasets)); |
| if (!pDatasetsNode) |
| return nullptr; |
| |
| for (CXFA_Node* pDatasetsChild = |
| pDatasetsNode->GetFirstChildByClass(XFA_Element::DataGroup); |
| pDatasetsChild; |
| pDatasetsChild = pDatasetsChild->GetNextSameClassSibling( |
| XFA_Element::DataGroup)) { |
| if (pDatasetsChild->GetNameHash() != XFA_HASHCODE_Data) |
| continue; |
| |
| CFX_WideString wsNamespaceURI; |
| if (!pDatasetsChild->TryNamespace(wsNamespaceURI)) |
| continue; |
| |
| CFX_WideString wsDatasetsURI; |
| if (!pDatasetsNode->TryNamespace(wsDatasetsURI)) |
| continue; |
| if (wsNamespaceURI == wsDatasetsURI) |
| return pDatasetsChild; |
| } |
| return nullptr; |
| } |
| case XFA_HASHCODE_Record: { |
| CXFA_Node* pData = ToNode(GetXFAObject(XFA_HASHCODE_Data)); |
| return pData ? pData->GetFirstChildByClass(XFA_Element::DataGroup) |
| : nullptr; |
| } |
| case XFA_HASHCODE_DataWindow: { |
| if (!m_pScriptDataWindow) |
| m_pScriptDataWindow = new CScript_DataWindow(this); |
| return m_pScriptDataWindow; |
| } |
| case XFA_HASHCODE_Event: { |
| if (!m_pScriptEvent) |
| m_pScriptEvent = new CScript_EventPseudoModel(this); |
| return m_pScriptEvent; |
| } |
| case XFA_HASHCODE_Host: { |
| if (!m_pScriptHost) |
| m_pScriptHost = new CScript_HostPseudoModel(this); |
| return m_pScriptHost; |
| } |
| case XFA_HASHCODE_Log: { |
| if (!m_pScriptLog) |
| m_pScriptLog = new CScript_LogPseudoModel(this); |
| return m_pScriptLog; |
| } |
| case XFA_HASHCODE_Signature: { |
| if (!m_pScriptSignature) |
| m_pScriptSignature = new CScript_SignaturePseudoModel(this); |
| return m_pScriptSignature; |
| } |
| case XFA_HASHCODE_Layout: { |
| if (!m_pScriptLayout) |
| m_pScriptLayout = new CScript_LayoutPseudoModel(this); |
| return m_pScriptLayout; |
| } |
| default: |
| return m_pRootNode->GetFirstChildByName(dwNodeNameHash); |
| } |
| } |
| |
| CXFA_Node* CXFA_Document::CreateNode(uint32_t dwPacket, XFA_Element eElement) { |
| return CreateNode(XFA_GetPacketByID(dwPacket), eElement); |
| } |
| |
| CXFA_Node* CXFA_Document::CreateNode(const XFA_PACKETINFO* pPacket, |
| XFA_Element eElement) { |
| if (!pPacket) |
| return nullptr; |
| |
| const XFA_ELEMENTINFO* pElement = XFA_GetElementByID(eElement); |
| if (pElement && (pElement->dwPackets & pPacket->eName)) { |
| CXFA_Node* pNode = |
| new CXFA_Node(this, pPacket->eName, pElement->eObjectType, |
| pElement->eName, pElement->pName); |
| AddPurgeNode(pNode); |
| return pNode; |
| } |
| |
| return nullptr; |
| } |
| |
| void CXFA_Document::AddPurgeNode(CXFA_Node* pNode) { |
| m_PurgeNodes.insert(pNode); |
| } |
| |
| FX_BOOL CXFA_Document::RemovePurgeNode(CXFA_Node* pNode) { |
| return !!m_PurgeNodes.erase(pNode); |
| } |
| |
| void CXFA_Document::PurgeNodes() { |
| for (CXFA_Node* pNode : m_PurgeNodes) |
| delete pNode; |
| |
| m_PurgeNodes.clear(); |
| } |
| |
| void CXFA_Document::SetFlag(uint32_t dwFlag, FX_BOOL bOn) { |
| if (bOn) |
| m_dwDocFlags |= dwFlag; |
| else |
| m_dwDocFlags &= ~dwFlag; |
| } |
| |
| FX_BOOL CXFA_Document::IsInteractive() { |
| if (m_dwDocFlags & XFA_DOCFLAG_HasInteractive) |
| return !!(m_dwDocFlags & XFA_DOCFLAG_Interactive); |
| |
| CXFA_Node* pConfig = ToNode(GetXFAObject(XFA_HASHCODE_Config)); |
| if (!pConfig) |
| return FALSE; |
| |
| CFX_WideString wsInteractive; |
| CXFA_Node* pPresent = pConfig->GetFirstChildByClass(XFA_Element::Present); |
| if (!pPresent) |
| return FALSE; |
| |
| CXFA_Node* pPDF = pPresent->GetFirstChildByClass(XFA_Element::Pdf); |
| if (!pPDF) |
| return FALSE; |
| |
| CXFA_Node* pInteractive = pPDF->GetChild(0, XFA_Element::Interactive); |
| if (pInteractive) { |
| m_dwDocFlags |= XFA_DOCFLAG_HasInteractive; |
| if (pInteractive->TryContent(wsInteractive) && |
| wsInteractive == FX_WSTRC(L"1")) { |
| m_dwDocFlags |= XFA_DOCFLAG_Interactive; |
| return TRUE; |
| } |
| } |
| return FALSE; |
| } |
| |
| CXFA_LocaleMgr* CXFA_Document::GetLocalMgr() { |
| if (!m_pLocalMgr) { |
| CFX_WideString wsLanguage; |
| GetNotify()->GetAppProvider()->GetLanguage(wsLanguage); |
| m_pLocalMgr = new CXFA_LocaleMgr( |
| ToNode(GetXFAObject(XFA_HASHCODE_LocaleSet)), wsLanguage); |
| } |
| return m_pLocalMgr; |
| } |
| |
| CXFA_ScriptContext* CXFA_Document::InitScriptContext(v8::Isolate* pIsolate) { |
| if (!m_pScriptContext) |
| m_pScriptContext = new CXFA_ScriptContext(this); |
| m_pScriptContext->Initialize(pIsolate); |
| return m_pScriptContext; |
| } |
| |
| CXFA_ScriptContext* CXFA_Document::GetScriptContext() { |
| if (!m_pScriptContext) |
| m_pScriptContext = new CXFA_ScriptContext(this); |
| return m_pScriptContext; |
| } |
| |
| XFA_VERSION CXFA_Document::RecognizeXFAVersionNumber( |
| CFX_WideString& wsTemplateNS) { |
| CFX_WideStringC wsTemplateURIPrefix = |
| XFA_GetPacketByIndex(XFA_PACKET_Template)->pURI; |
| FX_STRSIZE nPrefixLength = wsTemplateURIPrefix.GetLength(); |
| if (CFX_WideStringC(wsTemplateNS.c_str(), wsTemplateNS.GetLength()) != |
| wsTemplateURIPrefix) { |
| return XFA_VERSION_UNKNOWN; |
| } |
| FX_STRSIZE nDotPos = wsTemplateNS.Find('.', nPrefixLength); |
| if (nDotPos == (FX_STRSIZE)-1) |
| return XFA_VERSION_UNKNOWN; |
| |
| int8_t iMajor = FXSYS_wtoi( |
| wsTemplateNS.Mid(nPrefixLength, nDotPos - nPrefixLength).c_str()); |
| int8_t iMinor = FXSYS_wtoi( |
| wsTemplateNS.Mid(nDotPos + 1, wsTemplateNS.GetLength() - nDotPos - 2) |
| .c_str()); |
| XFA_VERSION eVersion = (XFA_VERSION)((int32_t)iMajor * 100 + iMinor); |
| if (eVersion < XFA_VERSION_MIN || eVersion > XFA_VERSION_MAX) |
| return XFA_VERSION_UNKNOWN; |
| |
| m_eCurVersionMode = eVersion; |
| return eVersion; |
| } |
| |
| CXFA_Node* CXFA_Document::GetNodeByID(CXFA_Node* pRoot, |
| const CFX_WideStringC& wsID) { |
| if (!pRoot || wsID.IsEmpty()) |
| return nullptr; |
| |
| CXFA_NodeIterator sIterator(pRoot); |
| for (CXFA_Node* pNode = sIterator.GetCurrent(); pNode; |
| pNode = sIterator.MoveToNext()) { |
| CFX_WideStringC wsIDVal; |
| if (pNode->TryCData(XFA_ATTRIBUTE_Id, wsIDVal) && !wsIDVal.IsEmpty()) { |
| if (wsIDVal == wsID) |
| return pNode; |
| } |
| } |
| return nullptr; |
| } |
| |
| void CXFA_Document::DoProtoMerge() { |
| CXFA_Node* pTemplateRoot = ToNode(GetXFAObject(XFA_HASHCODE_Template)); |
| if (!pTemplateRoot) |
| return; |
| |
| CFX_MapPtrTemplate<uint32_t, CXFA_Node*> mIDMap; |
| CXFA_NodeSet sUseNodes; |
| CXFA_NodeIterator sIterator(pTemplateRoot); |
| for (CXFA_Node* pNode = sIterator.GetCurrent(); pNode; |
| pNode = sIterator.MoveToNext()) { |
| CFX_WideStringC wsIDVal; |
| if (pNode->TryCData(XFA_ATTRIBUTE_Id, wsIDVal) && !wsIDVal.IsEmpty()) { |
| mIDMap[FX_HashCode_GetW(wsIDVal, false)] = pNode; |
| } |
| CFX_WideStringC wsUseVal; |
| if (pNode->TryCData(XFA_ATTRIBUTE_Use, wsUseVal) && !wsUseVal.IsEmpty()) { |
| sUseNodes.insert(pNode); |
| } else if (pNode->TryCData(XFA_ATTRIBUTE_Usehref, wsUseVal) && |
| !wsUseVal.IsEmpty()) { |
| sUseNodes.insert(pNode); |
| } |
| } |
| |
| for (CXFA_Node* pUseHrefNode : sUseNodes) { |
| CFX_WideString wsUseVal; |
| CFX_WideStringC wsURI, wsID, wsSOM; |
| if (pUseHrefNode->TryCData(XFA_ATTRIBUTE_Usehref, wsUseVal) && |
| !wsUseVal.IsEmpty()) { |
| FX_STRSIZE uSharpPos = wsUseVal.Find('#'); |
| if (uSharpPos < 0) { |
| wsURI = wsUseVal.AsStringC(); |
| } else { |
| wsURI = CFX_WideStringC(wsUseVal.c_str(), uSharpPos); |
| FX_STRSIZE uLen = wsUseVal.GetLength(); |
| if (uLen >= uSharpPos + 5 && |
| CFX_WideStringC(wsUseVal.c_str() + uSharpPos, 5) == |
| FX_WSTRC(L"#som(") && |
| wsUseVal[uLen - 1] == ')') { |
| wsSOM = CFX_WideStringC(wsUseVal.c_str() + uSharpPos + 5, |
| uLen - 1 - uSharpPos - 5); |
| } else { |
| wsID = CFX_WideStringC(wsUseVal.c_str() + uSharpPos + 1, |
| uLen - uSharpPos - 1); |
| } |
| } |
| } else if (pUseHrefNode->TryCData(XFA_ATTRIBUTE_Use, wsUseVal) && |
| !wsUseVal.IsEmpty()) { |
| if (wsUseVal[0] == '#') |
| wsID = CFX_WideStringC(wsUseVal.c_str() + 1, wsUseVal.GetLength() - 1); |
| else |
| wsSOM = CFX_WideStringC(wsUseVal.c_str(), wsUseVal.GetLength()); |
| } |
| |
| if (!wsURI.IsEmpty() && wsURI != FX_WSTRC(L".")) |
| continue; |
| |
| CXFA_Node* pProtoNode = nullptr; |
| if (!wsSOM.IsEmpty()) { |
| uint32_t dwFlag = XFA_RESOLVENODE_Children | XFA_RESOLVENODE_Attributes | |
| XFA_RESOLVENODE_Properties | XFA_RESOLVENODE_Parent | |
| XFA_RESOLVENODE_Siblings; |
| XFA_RESOLVENODE_RS resoveNodeRS; |
| int32_t iRet = m_pScriptContext->ResolveObjects(pUseHrefNode, wsSOM, |
| resoveNodeRS, dwFlag); |
| if (iRet > 0 && resoveNodeRS.nodes[0]->IsNode()) { |
| pProtoNode = resoveNodeRS.nodes[0]->AsNode(); |
| } |
| } else if (!wsID.IsEmpty()) { |
| if (!mIDMap.Lookup(FX_HashCode_GetW(wsID, false), pProtoNode)) { |
| continue; |
| } |
| } |
| if (!pProtoNode) |
| continue; |
| |
| MergeNode(this, pUseHrefNode, pProtoNode); |
| } |
| } |
