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Yajbir Singh f1b860b25c
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2025-12-11 19:03:17 +05:30

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/*
* (c) Copyright Ascensio System SIA 2010-2023
*
* This program is a free software product. You can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License (AGPL)
* version 3 as published by the Free Software Foundation. In accordance with
* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
* that Ascensio System SIA expressly excludes the warranty of non-infringement
* of any third-party rights.
*
* This program is distributed WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
*
* You can contact Ascensio System SIA at 20A-6 Ernesta Birznieka-Upish
* street, Riga, Latvia, EU, LV-1050.
*
* The interactive user interfaces in modified source and object code versions
* of the Program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU AGPL version 3.
*
* Pursuant to Section 7(b) of the License you must retain the original Product
* logo when distributing the program. Pursuant to Section 7(e) we decline to
* grant you any rights under trademark law for use of our trademarks.
*
* All the Product's GUI elements, including illustrations and icon sets, as
* well as technical writing content are licensed under the terms of the
* Creative Commons Attribution-ShareAlike 4.0 International. See the License
* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
*
*/
#include "Document.h"
#include "StaticResources.h"
#include "../../DesktopEditor/xml/include/xmlutils.h"
#include "../../DesktopEditor/common/File.h"
#include "../../DesktopEditor/common/StringExt.h"
namespace XPS
{
void RemoveLastSlashes(std::wstring& sPath)
{
size_t nLen = sPath.length();
if (nLen > 0)
{
if (sPath[nLen - 1] == '/' || sPath[nLen - 1] == '\\')
sPath.erase(nLen - 1);
}
if (std::wstring::npos == sPath.find('%'))
return;
std::wstring result;
result.reserve(nLen);
for (size_t i = 0; i < nLen; ++i)
{
if (i < nLen - 2 && sPath[i] == '%')
{
wchar_t a = sPath[i + 1];
int aInt = -1;
if (a >= '0' && a <= '9')
aInt = a - '0';
else if (a >= 'a' && a <= 'f')
aInt = 10 + a - 'a';
else if (a >= 'A' && a <= 'F')
aInt = 10 + a - 'A';
if (aInt < 0)
{
result.push_back(sPath[i]);
continue;
}
wchar_t b = sPath[i + 2];
int bInt = -1;
if (b >= '0' && b <= '9')
bInt = b - '0';
else if (b >= 'a' && b <= 'f')
bInt = 10 + b - 'a';
else if (b >= 'A' && b <= 'F')
bInt = 10 + b - 'A';
if (bInt < 0)
{
result.push_back(sPath[i]);
continue;
}
result.push_back((wchar_t)((aInt << 4) | bInt));
i += 2;
}
else
{
result.push_back(sPath[i]);
}
}
sPath = result;
}
CDocument::CDocument(NSFonts::IFontManager* pFontManager)
{
m_pFontManager = pFontManager;
m_mPages.clear();
m_wsPath = NULL;
}
CDocument::~CDocument()
{
Close();
}
bool CDocument::Read(IFolder* pFolder)
{
Close();
m_wsPath = pFolder;
XmlUtils::CXmlLiteReader oReader;
if (!oReader.FromStringA(m_wsPath->readXml(L"_rels/.rels")))
return false;
if (!oReader.ReadNextNode())
return false;
std::wstring wsName = oReader.GetNameNoNS();
if (L"Relationships" != wsName)
return false;
std::wstring wsTargetFile;
while (oReader.ReadNextNode())
{
wsName = oReader.GetNameNoNS();
if (L"Relationship" == wsName)
{
std::wstring wsAttr;
ReadAttribute(oReader, L"Type", wsAttr);
// http://schemas.microsoft.com/xps/2005/06/fixedrepresentation
// http://schemas.openxps.org/oxps/v1.0/fixedrepresentation
if (wsAttr.find(L"fixedrepresentation") != std::wstring::npos &&
((wsAttr.find(L"/xps/") != std::wstring::npos) || (wsAttr.find(L"/oxps/") != std::wstring::npos)))
{
ReadAttribute(oReader, L"Target", wsTargetFile);
break;
}
}
}
RemoveLastSlashes(wsTargetFile);
if (wsTargetFile.empty())
return false;
oReader.Clear();
if (!m_wsPath->existsXml(wsTargetFile))
{
wsTargetFile = GetPath(L"_rels/.rels") + wsTargetFile;
if (!m_wsPath->existsXml(wsTargetFile))
return false;
}
if (!oReader.FromStringA(m_wsPath->readXml(wsTargetFile)))
return false;
if (!oReader.ReadNextNode())
return false;
wsName = oReader.GetNameNoNS();
if (L"FixedDocumentSequence" != wsName)
return false;
std::wstring wsSourceFile;
while (oReader.ReadNextNode())
{
wsName = oReader.GetNameNoNS();
if (L"DocumentReference" == wsName)
{
ReadAttribute(oReader, L"Source", wsSourceFile);
break;
}
}
RemoveLastSlashes(wsSourceFile);
if (wsSourceFile.empty())
return false;
if (!m_wsPath->existsXml(wsSourceFile))
{
wsSourceFile = GetPath(wsTargetFile) + wsSourceFile;
if (!m_wsPath->existsXml(wsSourceFile))
return false;
}
std::wstring wsFilePath = GetPath(wsSourceFile);
// Оглавление, содержание, structure
oReader.Clear();
std::wstring wsStructureTargetFile = wsFilePath + L"_rels/" + NSFile::GetFileName(wsSourceFile) + L".rels";
std::wstring wsStructureFile;
if (m_wsPath->exists(wsStructureTargetFile) && oReader.FromStringA(m_wsPath->readXml(wsStructureTargetFile))
&& oReader.ReadNextNode() && oReader.GetNameNoNS() == L"Relationships")
{
while (oReader.ReadNextNode())
{
if (L"Relationship" == oReader.GetNameNoNS())
{
std::wstring wsAttr;
ReadAttribute(oReader, L"Type", wsAttr);
if (L"http://schemas.microsoft.com/xps/2005/06/documentstructure" == wsAttr)
{
ReadAttribute(oReader, L"Target", wsStructureFile);
break;
}
}
}
}
std::wstring wsFullStructureFile;
if (!wsStructureFile.empty())
{
if (m_wsPath->exists(wsStructureFile))
wsFullStructureFile = wsStructureFile;
else if (m_wsPath->exists(wsFilePath + wsStructureFile))
wsFullStructureFile = wsFilePath + wsStructureFile;
else
{
wsStructureFile = GetPath(wsStructureTargetFile) + wsStructureFile;
if (m_wsPath->exists(wsStructureFile))
wsFullStructureFile = wsStructureFile;
}
}
if (!wsFullStructureFile.empty())
{
oReader.Clear();
if (oReader.FromStringA(m_wsPath->readXml(wsFullStructureFile)) && oReader.ReadNextNode() && oReader.GetNameNoNS() == L"DocumentStructure")
{
while (oReader.ReadNextNode())
{
if (L"DocumentStructure.Outline" == oReader.GetNameNoNS() && oReader.ReadNextNode() && oReader.GetNameNoNS() == L"DocumentOutline")
{
while (oReader.ReadNextNode())
{
if (oReader.GetNameNoNS() == L"OutlineEntry")
{
CDocumentStructure oStructure;
oStructure.nLevel = 1; // OutlineLevel по умолчанию имеет значение 1
oStructure.nPage = 0;
oStructure.dY = 0; // по умолчанию верхняя часть страницы (216)
while (oReader.MoveToNextAttribute())
{
std::wstring wsAttrName = oReader.GetName();
std::wstring wsAttrText = oReader.GetText();
if (wsAttrName == L"OutlineLevel")
oStructure.nLevel = GetInteger(wsAttrText);
else if (wsAttrName == L"Description")
oStructure.sDescription = U_TO_UTF8(wsAttrText);
else if (wsAttrName == L"OutlineTarget")
{
size_t nSharp = wsAttrText.find(L'#');
if (nSharp != std::wstring::npos)
oStructure.wsTarget = wsAttrText.substr(nSharp + 1);
}
}
oReader.MoveToElement();
m_vStructure.push_back(oStructure);
}
}
}
}
}
}
oReader.Clear();
if (!oReader.FromStringA(m_wsPath->readXml(wsSourceFile)))
return false;
if (!oReader.ReadNextNode())
return false;
wsName = oReader.GetNameNoNS();
if (L"FixedDocument" != wsName)
return false;
std::wstring wsSource;
int nIndex = 0;
while (oReader.ReadNextNode())
{
wsName = oReader.GetNameNoNS();
if (L"PageContent" == wsName)
{
ReadAttribute(oReader, L"Source", wsSource);
std::wstring wsPagePath = wsSource;
RemoveLastSlashes(wsPagePath);
if (!m_wsPath->existsXml(wsPagePath))
{
wsPagePath = wsFilePath + wsSource;
if (!m_wsPath->existsXml(wsPagePath))
continue;
}
if (!oReader.IsEmptyElement())
{
int nDepth = oReader.GetDepth();
while (oReader.ReadNextSiblingNode(nDepth))
{
if (oReader.GetNameNoNS() == L"PageContent.LinkTargets")
{
int nLinkDepth = oReader.GetDepth();
while (oReader.ReadNextSiblingNode(nLinkDepth))
{
if (oReader.GetNameNoNS() == L"LinkTarget")
{
std::wstring wsNameTarget;
ReadAttribute(oReader, L"Name", wsNameTarget);
if (!wsNameTarget.empty())
{
std::vector<CDocumentStructure>::iterator find = std::find_if(m_vStructure.begin(), m_vStructure.end(), [wsNameTarget](const CDocumentStructure& str){ return str.wsTarget == wsNameTarget; });
if (find != m_vStructure.end())
find->nPage = nIndex;
else
m_mInternalLinks.insert(std::pair<std::wstring, int>(wsNameTarget, nIndex));
}
}
}
}
}
}
m_mPages.insert(std::pair<int, XPS::Page*>(nIndex++, new XPS::Page(wsPagePath, m_wsPath, &m_oFontList, m_pFontManager, this)));
}
}
return true;
}
int CDocument::GetPageCount()const
{
return (int)m_mPages.size();
}
void CDocument::GetPageSize(int nPageIndex, int& nW, int& nH)
{
std::map<int, XPS::Page*>::const_iterator oIter = m_mPages.find(nPageIndex);
if (oIter != m_mPages.end())
oIter->second->GetSize(nW, nH);
}
BYTE* CDocument::GetStructure()
{
NSWasm::CData oRes;
oRes.SkipLen();
for (const CDocumentStructure& str : m_vStructure)
{
oRes.AddInt(str.nPage);
oRes.AddInt(str.nLevel);
oRes.AddDouble(str.dY);
oRes.WriteString((BYTE*)str.sDescription.c_str(), str.sDescription.length());
}
oRes.WriteLen();
BYTE* bRes = oRes.GetBuffer();
oRes.ClearWithoutAttack();
return bRes;
}
BYTE* CDocument::GetPageLinks (int nPageIndex)
{
std::map<int, XPS::Page*>::const_iterator oIter = m_mPages.find(nPageIndex);
if (oIter != m_mPages.end())
return oIter->second->m_oLinks.Serialize();
return NULL;
}
void CDocument::DrawPage(int nPageIndex, IRenderer* pRenderer, bool* pbBreak)
{
std::map<int, XPS::Page*>::const_iterator oIter = m_mPages.find(nPageIndex);
if (oIter != m_mPages.end())
oIter->second->Draw(pRenderer, pbBreak);
}
void CDocument::Close()
{
for (std::map<int, XPS::Page*>::iterator oIter = m_mPages.begin(); oIter != m_mPages.end(); oIter++)
{
if (oIter->second)
delete oIter->second;
}
m_mPages.clear();
m_oFontList.Clear();
for (std::map<std::wstring, CStaticResource*>::iterator oIter = m_mStaticResources.begin(); oIter != m_mStaticResources.end(); oIter++)
{
if (oIter->second)
delete oIter->second;
}
m_mStaticResources.clear();
RELEASEOBJECT(m_wsPath);
}
CStaticResource* CDocument::GetStaticResource(const wchar_t* wsPath)
{
for (auto oIt : m_mStaticResources)
{
if (oIt.first == wsPath)
return oIt.second;
}
CStaticResource* pStaticResource = new CStaticResource(m_wsPath->readXml(wsPath));
m_mStaticResources.insert(std::pair<std::wstring, CStaticResource*>(wsPath, pStaticResource));
return pStaticResource;
}
std::wstring CDocument::GetInfo()
{
XmlUtils::CXmlLiteReader oReader;
std::wstring sRes = L"{";
if (oReader.FromStringA(m_wsPath->readXml(L"_rels/.rels")) && oReader.ReadNextNode() && L"Relationships" == oReader.GetNameNoNS())
{
std::wstring wsCoreFile;
while (oReader.ReadNextNode())
{
if (L"Relationship" == oReader.GetNameNoNS())
{
std::wstring wsAttr;
ReadAttribute(oReader, L"Type", wsAttr);
if (wsAttr.find(L"core-properties") != std::wstring::npos)
{
ReadAttribute(oReader, L"Target", wsCoreFile);
break;
}
}
}
if (!wsCoreFile.empty() && m_wsPath->exists(wsCoreFile))
{
oReader.Clear();
if (oReader.FromStringA(m_wsPath->readXml(wsCoreFile)) && oReader.ReadNextNode() && oReader.GetNameNoNS() == L"coreProperties")
{
while (oReader.ReadNextNode())
{
std::wstring sName = oReader.GetName();
if (sName == L"dc:title")
sName = L"Title";
else if (sName == L"dc:subject")
sName = L"Subject";
else if (sName == L"dc:creator")
sName = L"Author";
else if (sName == L"dcterms:created")
sName = L"CreationDate";
else if (sName == L"dcterms:modified")
sName = L"ModDate";
sRes += L"\"";
sRes += sName;
sRes += L"\":\"";
sName = oReader.GetText2();
NSStringExt::Replace(sName, L"\"", L"\\\"");
sRes += sName;
sRes += L"\",";
}
}
}
}
int nW = 0;
int nH = 0;
GetPageSize(0, nW, nH);
sRes += L"\"PageWidth\":";
sRes += std::to_wstring((int)(nW * 100));
sRes += L",\"PageHeight\":";
sRes += std::to_wstring((int)(nH * 100));
sRes += L",\"NumberOfPages\":";
sRes += std::to_wstring(GetPageCount());
sRes += L"}";
return sRes;
}
}