254 lines
7.2 KiB
C++
254 lines
7.2 KiB
C++
/*
|
|
* (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 "Metadata.h"
|
|
#include "Streams.h"
|
|
#include "Info.h"
|
|
#include "Utils.h"
|
|
|
|
#include "../../DesktopEditor/common/SystemUtils.h"
|
|
#include "../../OOXML/Base/Base.h"
|
|
|
|
void EscapeCharacters(std::string& s)
|
|
{
|
|
NSStringUtils::string_replaceA(s, "&", "&");
|
|
NSStringUtils::string_replaceA(s, "<", "<");
|
|
NSStringUtils::string_replaceA(s, ">", ">");
|
|
NSStringUtils::string_replaceA(s, "\"", """);
|
|
NSStringUtils::string_replaceA(s, "\'", "'");
|
|
}
|
|
|
|
namespace PdfWriter
|
|
{
|
|
//----------------------------------------------------------------------------------------
|
|
// Metadata
|
|
//----------------------------------------------------------------------------------------
|
|
CMetadata::CMetadata(CXref* pXref, CInfoDict* pInfo)
|
|
{
|
|
pXref->Add(this);
|
|
|
|
Add("Type", "Metadata");
|
|
Add("Subtype", "XML");
|
|
|
|
m_pStream = new CMemoryStream();
|
|
SetStream(pXref, m_pStream);
|
|
|
|
std::string sXML;
|
|
|
|
unsigned char strBOM[4] = { 0xEF, 0xBB, 0xBF, 0 };
|
|
std::string sBOM((char*)strBOM);
|
|
|
|
// Begin
|
|
sXML += ("<?xpacket begin=\"" + sBOM + "\" id=\"W5M0MpCehiHzreSzNTczkc9d\"?>\n<x:xmpmeta xmlns:x=\"adobe:ns:meta/\" x:xmptk=\"3.1-701\">\n<rdf:RDF xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\">\n");
|
|
|
|
sXML += "<rdf:Description rdf:about=\"\" xmlns:pdf=\"http://ns.adobe.com/pdf/1.3/\">\n";
|
|
// Producer
|
|
sXML += "<pdf:Producer>";
|
|
sXML += pInfo->GetInfo(InfoProducer);
|
|
sXML += "</pdf:Producer>\n";
|
|
// Keywords
|
|
const char* sKeywords = pInfo->GetInfo(InfoKeyWords);
|
|
if (sKeywords)
|
|
{
|
|
std::string s = sKeywords;
|
|
EscapeCharacters(s);
|
|
|
|
sXML += "<pdf:Keywords>";
|
|
sXML += s;
|
|
sXML += "</pdf:Keywords>\n";
|
|
}
|
|
sXML += "</rdf:Description>\n";
|
|
|
|
// Creator Tool
|
|
std::wstring sApplication = NSSystemUtils::GetEnvVariable(NSSystemUtils::gc_EnvApplicationName);
|
|
if (sApplication.empty())
|
|
sApplication = NSSystemUtils::gc_EnvApplicationNameDefault;
|
|
|
|
sXML += "<rdf:Description rdf:about=\"\" xmlns:xmp=\"http://ns.adobe.com/xap/1.0/\">\n";
|
|
sXML += "<xmp:CreatorTool>";
|
|
sXML += NSFile::CUtf8Converter::GetUtf8StringFromUnicode(sApplication);
|
|
|
|
#if defined(INTVER)
|
|
sXML += "/";
|
|
sXML += VALUE2STR(INTVER);
|
|
#endif
|
|
|
|
sXML += "</xmp:CreatorTool>\n";
|
|
|
|
TDate oDate = pInfo->GetDate();
|
|
sXML += "<xmp:CreateDate>";
|
|
oDate.AppendToString(sXML);
|
|
sXML += "</xmp:CreateDate>";
|
|
|
|
sXML += "<xmp:ModifyDate>";
|
|
oDate.AppendToString(sXML);
|
|
sXML += "</xmp:ModifyDate>";
|
|
|
|
sXML += "</rdf:Description>\n";
|
|
|
|
// DC
|
|
const char* sTitle = pInfo->GetInfo(InfoTitle);
|
|
const char* sAuthor = pInfo->GetInfo(InfoAuthor);
|
|
const char* sSubject = pInfo->GetInfo(InfoSubject);
|
|
if (sTitle || sAuthor || sSubject)
|
|
{
|
|
sXML += "<rdf:Description rdf:about=\"\" xmlns:dc=\"http://purl.org/dc/elements/1.1/\">\n";
|
|
sXML += "<dc:format>application/pdf</dc:format>";
|
|
if (sSubject)
|
|
{
|
|
std::string s = sSubject;
|
|
EscapeCharacters(s);
|
|
|
|
sXML += "<dc:description><rdf:Alt><rdf:li xml:lang=\"x-default\">";
|
|
sXML += s;
|
|
sXML += "</rdf:li></rdf:Alt></dc:description>\n";
|
|
}
|
|
if (sAuthor)
|
|
{
|
|
std::string s = sAuthor;
|
|
EscapeCharacters(s);
|
|
|
|
sXML += "<dc:creator><rdf:Seq><rdf:li>";
|
|
sXML += s;
|
|
sXML += "</rdf:li></rdf:Seq></dc:creator>\n";
|
|
}
|
|
if (sTitle)
|
|
{
|
|
std::string s = sTitle;
|
|
EscapeCharacters(s);
|
|
|
|
sXML += "<dc:title><rdf:Alt><rdf:li xml:lang=\"x-default\">";
|
|
sXML += s;
|
|
sXML += "</rdf:li></rdf:Alt></dc:title>\n";
|
|
}
|
|
sXML += "</rdf:Description>\n";
|
|
}
|
|
|
|
if (pXref->IsPDFA())
|
|
{
|
|
sXML += "<rdf:Description rdf:about=\"\" xmlns:pdfaid=\"http://www.aiim.org/pdfa/ns/id/\">\n";
|
|
sXML += "<pdfaid:part>2</pdfaid:part><pdfaid:conformance>A</pdfaid:conformance>\n";
|
|
sXML += "</rdf:Description>";
|
|
}
|
|
|
|
// End
|
|
sXML += "</rdf:RDF>\n</x:xmpmeta><?xpacket end=\"w\"?>";
|
|
|
|
m_pStream->WriteStr(sXML.c_str());
|
|
}
|
|
//----------------------------------------------------------------------------------------
|
|
// StreamData
|
|
//----------------------------------------------------------------------------------------
|
|
CStreamData::CStreamData(CXref* pXref)
|
|
{
|
|
pXref->Add(this);
|
|
|
|
m_pStream = new CMemoryStream();
|
|
Add("Length", 1234567890);
|
|
Add("Type", "MetaOForm");
|
|
SetStream(pXref, m_pStream);
|
|
|
|
m_nLengthBegin = 0;
|
|
m_nLengthEnd = 0;
|
|
}
|
|
void CStreamData::SetID(CBinaryObject* pID)
|
|
{
|
|
if (!pID)
|
|
return;
|
|
Add("ID", pID);
|
|
}
|
|
bool CStreamData::AddMetaData(const std::wstring& sMetaName, BYTE* pMetaData, DWORD nMetaLength)
|
|
{
|
|
if (sMetaName == L"Length")
|
|
return false;
|
|
|
|
CArrayObject* pArr = new CArrayObject();
|
|
if (!pArr)
|
|
return false;
|
|
|
|
std::string sKey = U_TO_UTF8(sMetaName);
|
|
Add(sKey, pArr);
|
|
|
|
int nCur = m_pStream->Tell();
|
|
pArr->Add(nCur);
|
|
pArr->Add((int)nMetaLength);
|
|
m_pStream->Write(pMetaData, nMetaLength);
|
|
|
|
return true;
|
|
}
|
|
void CStreamData::WriteToStream(CStream* pStream, CEncrypt* pEncrypt)
|
|
{
|
|
for (auto const &oIter : m_mList)
|
|
{
|
|
CObjectBase* pObject = oIter.second;
|
|
if (!pObject)
|
|
continue;
|
|
|
|
if (!pObject->IsHidden())
|
|
{
|
|
int nBegin, nEnd;
|
|
pStream->WriteEscapeName(oIter.first.c_str());
|
|
pStream->WriteChar(' ');
|
|
nBegin = pStream->Tell();
|
|
pStream->Write(pObject, NULL);
|
|
nEnd = pStream->Tell();
|
|
pStream->WriteStr("\012");
|
|
if (oIter.first == "Length")
|
|
{
|
|
m_nLengthBegin = nBegin;
|
|
m_nLengthEnd = nEnd;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
void CStreamData::AfterWrite(CStream* pStream)
|
|
{
|
|
int nCurrent = pStream->Tell();
|
|
|
|
pStream->Seek(m_nLengthBegin, EWhenceMode::SeekSet);
|
|
pStream->Write(Get("Length"), NULL);
|
|
|
|
int nEnd = pStream->Tell();
|
|
if (nEnd < m_nLengthEnd)
|
|
{
|
|
unsigned int nLength = m_nLengthEnd - nEnd;
|
|
BYTE* pDifference = new BYTE[nLength];
|
|
MemSet(pDifference, ' ', nLength);
|
|
|
|
pStream->Write(pDifference, nLength);
|
|
|
|
RELEASEARRAYOBJECTS(pDifference);
|
|
}
|
|
|
|
pStream->Seek(nCurrent, EWhenceMode::SeekSet);
|
|
}
|
|
}
|