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// Copyright 2017 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/xml/cfx_xmldoc.h"
#include <utility>
#include <vector>
#include "core/fxcrt/fx_codepage.h"
#include "core/fxcrt/xml/cfx_xmlchardata.h"
#include "core/fxcrt/xml/cfx_xmlelement.h"
#include "core/fxcrt/xml/cfx_xmlinstruction.h"
#include "core/fxcrt/xml/cfx_xmlnode.h"
#include "core/fxcrt/xml/cfx_xmltext.h"
#include "third_party/base/ptr_util.h"
#include "third_party/base/stl_util.h"
CFX_XMLDoc::CFX_XMLDoc()
: m_iStatus(0), m_pRoot(pdfium::MakeUnique<CFX_XMLNode>()) {
m_pRoot->InsertChildNode(new CFX_XMLInstruction(L"xml"));
}
CFX_XMLDoc::~CFX_XMLDoc() {}
bool CFX_XMLDoc::LoadXML(std::unique_ptr<CFX_XMLParser> pXMLParser) {
if (!pXMLParser)
return false;
m_iStatus = 0;
m_pStream.Reset();
m_pRoot->DeleteChildren();
m_pXMLParser = std::move(pXMLParser);
return true;
}
int32_t CFX_XMLDoc::DoLoad() {
if (m_iStatus < 100)
m_iStatus = m_pXMLParser->DoParser();
return m_iStatus;
}
void CFX_XMLDoc::CloseXML() {
m_pXMLParser.reset();
}
void CFX_XMLDoc::SaveXMLNode(
const CFX_RetainPtr<CFX_SeekableStreamProxy>& pXMLStream,
CFX_XMLNode* pINode) {
CFX_XMLNode* pNode = (CFX_XMLNode*)pINode;
switch (pNode->GetType()) {
case FX_XMLNODE_Instruction: {
WideString ws;
CFX_XMLInstruction* pInstruction = (CFX_XMLInstruction*)pNode;
if (pInstruction->GetName().CompareNoCase(L"xml") == 0) {
ws = L"<?xml version=\"1.0\" encoding=\"";
uint16_t wCodePage = pXMLStream->GetCodePage();
if (wCodePage == FX_CODEPAGE_UTF16LE) {
ws += L"UTF-16";
} else if (wCodePage == FX_CODEPAGE_UTF16BE) {
ws += L"UTF-16be";
} else {
ws += L"UTF-8";
}
ws += L"\"?>";
pXMLStream->WriteString(ws.AsStringView());
} else {
ws.Format(L"<?%s", pInstruction->GetName().c_str());
pXMLStream->WriteString(ws.AsStringView());
for (auto it : pInstruction->GetAttributes()) {
WideString wsValue = it.second;
wsValue.Replace(L"&", L"&");
wsValue.Replace(L"<", L"<");
wsValue.Replace(L">", L">");
wsValue.Replace(L"\'", L"'");
wsValue.Replace(L"\"", L""");
ws = L" ";
ws += it.first;
ws += L"=\"";
ws += wsValue;
ws += L"\"";
pXMLStream->WriteString(ws.AsStringView());
}
for (auto target : pInstruction->GetTargetData()) {
ws = L" \"";
ws += target;
ws += L"\"";
pXMLStream->WriteString(ws.AsStringView());
}
ws = L"?>";
pXMLStream->WriteString(ws.AsStringView());
}
break;
}
case FX_XMLNODE_Element: {
WideString ws;
ws = L"<";
ws += static_cast<CFX_XMLElement*>(pNode)->GetName();
pXMLStream->WriteString(ws.AsStringView());
for (auto it : static_cast<CFX_XMLElement*>(pNode)->GetAttributes()) {
WideString wsValue = it.second;
wsValue.Replace(L"&", L"&");
wsValue.Replace(L"<", L"<");
wsValue.Replace(L">", L">");
wsValue.Replace(L"\'", L"'");
wsValue.Replace(L"\"", L""");
ws = L" ";
ws += it.first;
ws += L"=\"";
ws += wsValue;
ws += L"\"";
pXMLStream->WriteString(ws.AsStringView());
}
if (pNode->m_pChild) {
ws = L"\n>";
pXMLStream->WriteString(ws.AsStringView());
CFX_XMLNode* pChild = pNode->m_pChild;
while (pChild) {
SaveXMLNode(pXMLStream, static_cast<CFX_XMLNode*>(pChild));
pChild = pChild->m_pNext;
}
ws = L"</";
ws += static_cast<CFX_XMLElement*>(pNode)->GetName();
ws += L"\n>";
} else {
ws = L"\n/>";
}
pXMLStream->WriteString(ws.AsStringView());
break;
}
case FX_XMLNODE_Text: {
WideString ws = static_cast<CFX_XMLText*>(pNode)->GetText();
ws.Replace(L"&", L"&");
ws.Replace(L"<", L"<");
ws.Replace(L">", L">");
ws.Replace(L"\'", L"'");
ws.Replace(L"\"", L""");
pXMLStream->WriteString(ws.AsStringView());
break;
}
case FX_XMLNODE_CharData: {
WideString ws = L"<![CDATA[";
ws += static_cast<CFX_XMLCharData*>(pNode)->GetText();
ws += L"]]>";
pXMLStream->WriteString(ws.AsStringView());
break;
}
case FX_XMLNODE_Unknown:
default:
break;
}
}
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