mirror of
https://github.com/ONLYOFFICE/core.git
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945 lines
33 KiB
C++
945 lines
33 KiB
C++
/*
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* (c) Copyright Ascensio System SIA 2010-2019
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*
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* This program is a free software product. You can redistribute it and/or
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* modify it under the terms of the GNU Affero General Public License (AGPL)
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* version 3 as published by the Free Software Foundation. In accordance with
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* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
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* that Ascensio System SIA expressly excludes the warranty of non-infringement
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* of any third-party rights.
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*
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* This program is distributed WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
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* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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*
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* You can contact Ascensio System SIA at 20A-12 Ernesta Birznieka-Upisha
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* street, Riga, Latvia, EU, LV-1050.
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*
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* The interactive user interfaces in modified source and object code versions
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* of the Program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU AGPL version 3.
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*
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* Pursuant to Section 7(b) of the License you must retain the original Product
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* logo when distributing the program. Pursuant to Section 7(e) we decline to
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* grant you any rights under trademark law for use of our trademarks.
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*
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* All the Product's GUI elements, including illustrations and icon sets, as
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* well as technical writing content are licensed under the terms of the
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* Creative Commons Attribution-ShareAlike 4.0 International. See the License
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* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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*
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*/
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#define errMemory 12
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#include "PdfReader.h"
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#include "../../DesktopEditor/graphics/IRenderer.h"
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#include "../../DesktopEditor/common/Directory.h"
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#include "../../DesktopEditor/common/StringExt.h"
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#include "../../DesktopEditor/graphics/pro/js/wasm/src/serialize.h"
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#include "lib/xpdf/PDFDoc.h"
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#include "lib/xpdf/GlobalParams.h"
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#include "lib/xpdf/ErrorCodes.h"
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#include "lib/xpdf/TextString.h"
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#include "lib/xpdf/Lexer.h"
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#include "lib/xpdf/Parser.h"
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#include "SrcReader/Adaptors.h"
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#include "lib/xpdf/Outline.h"
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#include "lib/xpdf/Link.h"
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#include "lib/xpdf/TextOutputDev.h"
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#include "lib/xpdf/AcroForm.h"
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#include "lib/goo/GList.h"
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#include <vector>
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CPdfReader::CPdfReader(NSFonts::IApplicationFonts* pAppFonts)
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{
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m_wsTempFolder = L"";
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m_pPDFDocument = NULL;
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m_nFileLength = 0;
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globalParams = new GlobalParamsAdaptor(NULL);
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#ifndef _DEBUG
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globalParams->setErrQuiet(gTrue);
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#endif
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m_pFontList = new PdfReader::CFontList();
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// Создаем менеджер шрифтов с собственным кэшем
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m_pFontManager = pAppFonts->GenerateFontManager();
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NSFonts::IFontsCache* pMeasurerCache = NSFonts::NSFontCache::Create();
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pMeasurerCache->SetStreams(pAppFonts->GetStreams());
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m_pFontManager->SetOwnerCache(pMeasurerCache);
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pMeasurerCache->SetCacheSize(1);
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((GlobalParamsAdaptor*)globalParams)->SetFontManager(m_pFontManager);
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#ifndef BUILDING_WASM_MODULE
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globalParams->setupBaseFonts(NULL);
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SetCMapFile(NSFile::GetProcessDirectory() + L"/cmap.bin");
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#else
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globalParams->setDrawFormFields(gFalse);
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SetCMapMemory(NULL, 0);
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#endif
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m_eError = errNone;
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}
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CPdfReader::~CPdfReader()
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{
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if (m_pFontList)
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{
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m_pFontList->Clear();
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delete m_pFontList;
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}
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if (!m_wsTempFolder.empty())
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{
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NSDirectory::DeleteDirectory(m_wsTempFolder);
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m_wsTempFolder = L"";
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}
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RELEASEOBJECT(m_pPDFDocument);
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RELEASEOBJECT(globalParams);
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RELEASEINTERFACE(m_pFontManager);
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}
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bool scanFonts(Dict *pResources, PDFDoc *pDoc, const std::vector<std::string>& arrCMap)
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{
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Object oFonts;
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if (pResources->lookup("Font", &oFonts) && oFonts.isDict())
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{
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for (int i = 0, nLength = oFonts.dictGetLength(); i < nLength; ++i)
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{
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Object oFont, oEncoding;
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if (!oFonts.dictGetVal(i, &oFont) || !oFont.isDict() || !oFont.dictLookup("Encoding", &oEncoding) || !oEncoding.isName())
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{
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oFont.free(); oEncoding.free();
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continue;
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}
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char* sName = oEncoding.getName();
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if (std::find(arrCMap.begin(), arrCMap.end(), sName) != arrCMap.end())
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{
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oEncoding.free(); oFont.free(); oFonts.free();
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return true;
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}
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oEncoding.free(); oFont.free();
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}
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}
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oFonts.free();
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#define SCAN_FONTS(sName)\
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{\
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Object oObject;\
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if (pResources->lookup(sName, &oObject) && oObject.isDict())\
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{\
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for (int i = 0, nLength = oObject.dictGetLength(); i < nLength; ++i)\
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{\
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Object oXObj, oResources;\
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if (!oObject.dictGetVal(i, &oXObj) || !oXObj.isStream() || !oXObj.streamGetDict()->lookup("Resources", &oResources) || !oResources.isDict())\
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{\
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oXObj.free(); oResources.free();\
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continue;\
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}\
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oXObj.free();\
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if (scanFonts(oResources.getDict(), pDoc, arrCMap))\
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{\
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oResources.free(); oObject.free();\
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return true;\
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}\
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oResources.free();\
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}\
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}\
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oObject.free();\
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}
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SCAN_FONTS("XObject");
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SCAN_FONTS("Pattern");
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Object oExtGState;
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if (pResources->lookup("ExtGState", &oExtGState) && oExtGState.isDict())
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{
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for (int i = 0, nLength = oExtGState.dictGetLength(); i < nLength; ++i)
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{
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Object oGS, oSMask, oSMaskGroup, oResources;
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if (!oExtGState.dictGetVal(i, &oGS) || !oGS.isDict() || !oGS.dictLookup("SMask", &oSMask) || !oSMask.isDict() || !oSMask.dictLookup("G", &oSMaskGroup) || !oSMaskGroup.isStream() ||
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oSMaskGroup.streamGetDict()->lookup("Resources", &oResources) || !oResources.isDict())
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{
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oGS.free(); oSMask.free(); oSMaskGroup.free(); oResources.free();
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continue;
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}
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oGS.free(); oSMask.free(); oSMaskGroup.free();
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if (scanFonts(oResources.getDict(), pDoc, arrCMap))
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{
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oResources.free(); oExtGState.free();
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return true;
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}
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oResources.free();
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}
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}
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oExtGState.free();
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return false;
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}
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bool CPdfReader::IsNeedCMap()
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{
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std::vector<std::string> arrCMap = {"GB-EUC-H", "GB-EUC-V", "GB-H", "GB-V", "GBpc-EUC-H", "GBpc-EUC-V", "GBK-EUC-H",
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"GBK-EUC-V", "GBKp-EUC-H", "GBKp-EUC-V", "GBK2K-H", "GBK2K-V", "GBT-H", "GBT-V", "GBTpc-EUC-H", "GBTpc-EUC-V",
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"UniGB-UCS2-H", "UniGB-UCS2-V", "UniGB-UTF8-H", "UniGB-UTF8-V", "UniGB-UTF16-H", "UniGB-UTF16-V", "UniGB-UTF32-H",
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"UniGB-UTF32-V", "B5pc-H", "B5pc-V", "B5-H", "B5-V", "HKscs-B5-H", "HKscs-B5-V", "HKdla-B5-H", "HKdla-B5-V",
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"HKdlb-B5-H", "HKdlb-B5-V", "HKgccs-B5-H", "HKgccs-B5-V", "HKm314-B5-H", "HKm314-B5-V", "HKm471-B5-H",
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"HKm471-B5-V", "ETen-B5-H", "ETen-B5-V", "ETenms-B5-H", "ETenms-B5-V", "ETHK-B5-H", "ETHK-B5-V", "CNS-EUC-H",
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"CNS-EUC-V", "CNS1-H", "CNS1-V", "CNS2-H", "CNS2-V", "UniCNS-UCS2-H", "UniCNS-UCS2-V", "UniCNS-UTF8-H",
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"UniCNS-UTF8-V", "UniCNS-UTF16-H", "UniCNS-UTF16-V", "UniCNS-UTF32-H", "UniCNS-UTF32-V", "78-EUC-H", "78-EUC-V",
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"78-H", "78-V", "78-RKSJ-H", "78-RKSJ-V", "78ms-RKSJ-H", "78ms-RKSJ-V","83pv-RKSJ-H", "90ms-RKSJ-H", "90ms-RKSJ-V",
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"90msp-RKSJ-H", "90msp-RKSJ-V", "90pv-RKSJ-H", "90pv-RKSJ-V", "Add-H", "Add-V", "Add-RKSJ-H", "Add-RKSJ-V",
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"EUC-H", "EUC-V", "Ext-RKSJ-H", "Ext-RKSJ-V", "H", "V", "NWP-H", "NWP-V", "RKSJ-H", "RKSJ-V", "UniJIS-UCS2-H",
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"UniJIS-UCS2-V", "UniJIS-UCS2-HW-H", "UniJIS-UCS2-HW-V", "UniJIS-UTF8-H", "UniJIS-UTF8-V", "UniJIS-UTF16-H",
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"UniJIS-UTF16-V", "UniJIS-UTF32-H", "UniJIS-UTF32-V", "UniJIS2004-UTF8-H", "UniJIS2004-UTF8-V", "UniJIS2004-UTF16-H",
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"UniJIS2004-UTF16-V", "UniJIS2004-UTF32-H", "UniJIS2004-UTF32-V", "UniJISPro-UCS2-V", "UniJISPro-UCS2-HW-V",
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"UniJISPro-UTF8-V", "UniJISX0213-UTF32-H", "UniJISX0213-UTF32-V", "UniJISX02132004-UTF32-H", "UniJISX02132004-UTF32-V",
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"WP-Symbol", "Hankaku", "Hiragana", "Katakana", "Roman", "KSC-EUC-H", "KSC-EUC-V", "KSC-H", "KSC-V", "KSC-Johab-H",
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"KSC-Johab-V", "KSCms-UHC-H", "KSCms-UHC-V", "KSCms-UHC-HW-H", "KSCms-UHC-HW-V", "KSCpc-EUC-H", "KSCpc-EUC-V",
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"UniKS-UCS2-H", "UniKS-UCS2-V", "UniKS-UTF8-H", "UniKS-UTF8-V", "UniKS-UTF16-H", "UniKS-UTF16-V", "UniKS-UTF32-H",
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"UniKS-UTF32-V", "UniAKR-UTF8-H", "UniAKR-UTF16-H", "UniAKR-UTF32-H"};
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if (!m_pPDFDocument || !m_pPDFDocument->getCatalog())
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return false;
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for (int nPage = 0, nLastPage = m_pPDFDocument->getNumPages(); nPage < nLastPage; ++nPage)
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{
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Page* pPage = m_pPDFDocument->getCatalog()->getPage(nPage + 1);
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Dict* pResources = pPage->getResourceDict();
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if (pResources && scanFonts(pResources, m_pPDFDocument, arrCMap))
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return true;
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}
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return false;
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}
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void CPdfReader::SetCMapMemory(BYTE* pData, DWORD nSizeData)
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{
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((GlobalParamsAdaptor*)globalParams)->SetCMapMemory(pData, nSizeData);
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}
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void CPdfReader::SetCMapFolder(const std::wstring& sFolder)
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{
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((GlobalParamsAdaptor*)globalParams)->SetCMapFolder(sFolder);
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}
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void CPdfReader::SetCMapFile(const std::wstring& sFile)
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{
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((GlobalParamsAdaptor*)globalParams)->SetCMapFile(sFile);
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}
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bool CPdfReader::LoadFromFile(NSFonts::IApplicationFonts* pAppFonts, const std::wstring& wsSrcPath, const std::wstring& wsOwnerPassword, const std::wstring& wsUserPassword)
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{
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RELEASEINTERFACE(m_pFontManager);
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m_pFontManager = pAppFonts->GenerateFontManager();
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NSFonts::IFontsCache* pMeasurerCache = NSFonts::NSFontCache::Create();
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pMeasurerCache->SetStreams(pAppFonts->GetStreams());
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m_pFontManager->SetOwnerCache(pMeasurerCache);
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pMeasurerCache->SetCacheSize(1);
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((GlobalParamsAdaptor*)globalParams)->SetFontManager(m_pFontManager);
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RELEASEOBJECT(m_pPDFDocument);
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if (m_wsTempFolder == L"")
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SetTempDirectory(NSDirectory::GetTempPath());
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m_eError = errNone;
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GString* owner_pswd = NSStrings::CreateString(wsOwnerPassword);
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GString* user_pswd = NSStrings::CreateString(wsUserPassword);
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// конвертим путь в utf8 - под виндой они сконвертят в юникод, а на остальных - так и надо
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std::string sPathUtf8 = U_TO_UTF8(wsSrcPath);
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m_pPDFDocument = new PDFDoc((char*)sPathUtf8.c_str(), owner_pswd, user_pswd);
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delete owner_pswd;
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delete user_pswd;
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NSFile::CFileBinary oFile;
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if (oFile.OpenFile(wsSrcPath))
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{
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m_nFileLength = oFile.GetFileSize();
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oFile.CloseFile();
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}
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m_eError = m_pPDFDocument ? m_pPDFDocument->getErrorCode() : errMemory;
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if (!m_pPDFDocument || !m_pPDFDocument->isOk())
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{
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RELEASEOBJECT(m_pPDFDocument);
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return false;
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}
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m_pFontList->Clear();
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return true;
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}
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bool CPdfReader::LoadFromMemory(NSFonts::IApplicationFonts* pAppFonts, BYTE* data, DWORD length, const std::wstring& owner_password, const std::wstring& user_password)
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{
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RELEASEINTERFACE(m_pFontManager);
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m_pFontManager = pAppFonts->GenerateFontManager();
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NSFonts::IFontsCache* pMeasurerCache = NSFonts::NSFontCache::Create();
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pMeasurerCache->SetStreams(pAppFonts->GetStreams());
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m_pFontManager->SetOwnerCache(pMeasurerCache);
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pMeasurerCache->SetCacheSize(1);
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((GlobalParamsAdaptor*)globalParams)->SetFontManager(m_pFontManager);
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RELEASEOBJECT(m_pPDFDocument);
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m_eError = errNone;
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GString* owner_pswd = NSStrings::CreateString(owner_password);
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GString* user_pswd = NSStrings::CreateString(user_password);
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Object obj;
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obj.initNull();
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// будет освобожден в деструкторе PDFDoc
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BaseStream *str = new MemStream((char*)data, 0, length, &obj);
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m_pPDFDocument = new PDFDoc(str, owner_pswd, user_pswd);
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m_nFileLength = length;
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delete owner_pswd;
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delete user_pswd;
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m_eError = m_pPDFDocument ? m_pPDFDocument->getErrorCode() : errMemory;
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if (!m_pPDFDocument || !m_pPDFDocument->isOk())
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{
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RELEASEOBJECT(m_pPDFDocument);
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return false;
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}
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m_pFontList->Clear();
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return true;
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}
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void CPdfReader::Close()
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{
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RELEASEOBJECT(m_pPDFDocument);
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}
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int CPdfReader::GetError()
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{
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if (!m_pPDFDocument)
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return m_eError;
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if (m_pPDFDocument->isOk())
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return 0;
|
||
|
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return m_pPDFDocument->getErrorCode();
|
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}
|
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void CPdfReader::GetPageInfo(int _nPageIndex, double* pdWidth, double* pdHeight, double* pdDpiX, double* pdDpiY)
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{
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int nPageIndex = _nPageIndex + 1;
|
||
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if (!m_pPDFDocument)
|
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return;
|
||
|
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int nRotate = m_pPDFDocument->getPageRotate(nPageIndex);
|
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if (nRotate % 180 == 0)
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{
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*pdWidth = m_pPDFDocument->getPageCropWidth(nPageIndex);
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*pdHeight = m_pPDFDocument->getPageCropHeight(nPageIndex);
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}
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else
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||
{
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*pdHeight = m_pPDFDocument->getPageCropWidth(nPageIndex);
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*pdWidth = m_pPDFDocument->getPageCropHeight(nPageIndex);
|
||
}
|
||
|
||
*pdDpiX = 72.0;
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*pdDpiY = 72.0;
|
||
}
|
||
void CPdfReader::DrawPageOnRenderer(IRenderer* pRenderer, int _nPageIndex, bool* pbBreak)
|
||
{
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int nPageIndex = _nPageIndex + 1;
|
||
|
||
if (m_pPDFDocument && pRenderer)
|
||
{
|
||
PdfReader::RendererOutputDev oRendererOut(pRenderer, m_pFontManager, m_pFontList);
|
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oRendererOut.NewPDF(m_pPDFDocument->getXRef());
|
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oRendererOut.SetBreak(pbBreak);
|
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m_pPDFDocument->displayPage(&oRendererOut, nPageIndex, 72.0, 72.0, 0, gFalse, gTrue, gFalse);
|
||
}
|
||
}
|
||
void CPdfReader::SetTempDirectory(const std::wstring& wsTempFolder)
|
||
{
|
||
if (!m_wsTempFolder.empty())
|
||
{
|
||
NSDirectory::DeleteDirectory(m_wsTempFolder);
|
||
m_wsTempFolder = wsTempFolder;
|
||
}
|
||
|
||
if (!wsTempFolder.empty())
|
||
{
|
||
std::wstring wsFolderName = wsTempFolder + L"/pdftemp";
|
||
std::wstring wsFolder = wsFolderName;
|
||
int nCounter = 0;
|
||
while (NSDirectory::Exists(wsFolder))
|
||
{
|
||
nCounter++;
|
||
wsFolder = wsFolderName + L"_" + std::to_wstring(nCounter);
|
||
}
|
||
NSDirectory::CreateDirectory(wsFolder);
|
||
m_wsTempFolder = wsFolder;
|
||
}
|
||
else
|
||
m_wsTempFolder = L"";
|
||
|
||
if (globalParams)
|
||
((GlobalParamsAdaptor*)globalParams)->SetTempFolder(m_wsTempFolder.c_str());
|
||
}
|
||
std::wstring CPdfReader::GetTempDirectory()
|
||
{
|
||
return m_wsTempFolder;
|
||
}
|
||
|
||
void CPdfReader::ChangeLength(DWORD nLength)
|
||
{
|
||
m_nFileLength = nLength;
|
||
}
|
||
|
||
#define DICT_LOOKUP(sName, wsName) \
|
||
if (info.dictLookup(sName, &obj1)->isString())\
|
||
{\
|
||
TextString* s = new TextString(obj1.getString());\
|
||
std::wstring sValue = NSStringExt::CConverter::GetUnicodeFromUTF32(s->getUnicode(), s->getLength());\
|
||
delete s;\
|
||
NSStringExt::Replace(sValue, L"\"", L"\\\"");\
|
||
size_t nFind = sValue.find(L'\000');\
|
||
while (nFind != std::wstring::npos)\
|
||
{\
|
||
sValue.erase(nFind, 1);\
|
||
nFind = sValue.find(L'\000');\
|
||
}\
|
||
if (!sValue.empty())\
|
||
{\
|
||
sRes += L"\"";\
|
||
sRes += wsName;\
|
||
sRes += L"\":\"";\
|
||
sRes += sValue;\
|
||
sRes += L"\",";\
|
||
}\
|
||
}\
|
||
|
||
#define DICT_LOOKUP_DATE(sName, wsName) \
|
||
if (info.dictLookup(sName, &obj1)->isString())\
|
||
{\
|
||
char* str = obj1.getString()->getCString();\
|
||
if (str)\
|
||
{\
|
||
TextString* s = new TextString(obj1.getString());\
|
||
std::wstring sNoDate = NSStringExt::CConverter::GetUnicodeFromUTF32(s->getUnicode(), s->getLength());\
|
||
if (sNoDate.length() > 16)\
|
||
{\
|
||
std::wstring sDate = sNoDate.substr(2, 4) + L'-' + sNoDate.substr(6, 2) + L'-' + sNoDate.substr(8, 2) + L'T' +\
|
||
sNoDate.substr(10, 2) + L':' + sNoDate.substr(12, 2) + L':' + sNoDate.substr(14, 2);\
|
||
if (sNoDate.length() > 21)\
|
||
sDate += (L".000" + sNoDate.substr(16, 3) + L':' + sNoDate.substr(20, 2));\
|
||
else\
|
||
sDate += L"Z";\
|
||
NSStringExt::Replace(sDate, L"\"", L"\\\"");\
|
||
sRes += L"\"";\
|
||
sRes += wsName;\
|
||
sRes += L"\":\"";\
|
||
sRes += sDate;\
|
||
sRes += L"\",";\
|
||
}\
|
||
delete s;\
|
||
}\
|
||
}\
|
||
|
||
std::wstring CPdfReader::GetInfo()
|
||
{
|
||
if (!m_pPDFDocument)
|
||
return NULL;
|
||
XRef* xref = m_pPDFDocument->getXRef();
|
||
BaseStream* str = m_pPDFDocument->getBaseStream();
|
||
if (!xref || !str)
|
||
return NULL;
|
||
|
||
std::wstring sRes = L"{";
|
||
|
||
Object info, obj1;
|
||
m_pPDFDocument->getDocInfo(&info);
|
||
if (info.isDict())
|
||
{
|
||
DICT_LOOKUP("Title", L"Title");
|
||
DICT_LOOKUP("Author", L"Author");
|
||
DICT_LOOKUP("Subject", L"Subject");
|
||
DICT_LOOKUP("Keywords", L"Keywords");
|
||
DICT_LOOKUP("Creator", L"Creator");
|
||
DICT_LOOKUP("Producer", L"Producer");
|
||
|
||
DICT_LOOKUP_DATE("CreationDate", L"CreationDate");
|
||
DICT_LOOKUP_DATE("ModDate", L"ModDate");
|
||
}
|
||
|
||
info.free();
|
||
obj1.free();
|
||
|
||
std::wstring version = std::to_wstring(m_pPDFDocument->getPDFVersion());
|
||
std::wstring::size_type posDot = version.find('.');
|
||
if (posDot != std::wstring::npos)
|
||
version = version.substr(0, posDot + 2);
|
||
if (!version.empty())
|
||
sRes += (L"\"Version\":" + version + L",");
|
||
|
||
double nW = 0;
|
||
double nH = 0;
|
||
double nDpi = 0;
|
||
GetPageInfo(0, &nW, &nH, &nDpi, &nDpi);
|
||
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(m_pPDFDocument->getNumPages());
|
||
sRes += L",\"FastWebView\":";
|
||
|
||
Object obj2, obj3, obj4, obj5, obj6;
|
||
bool bLinearized = false;
|
||
obj1.initNull();
|
||
Parser* parser = new Parser(xref, new Lexer(xref, str->makeSubStream(str->getStart(), gFalse, 0, &obj1)), gTrue);
|
||
parser->getObj(&obj1);
|
||
parser->getObj(&obj2);
|
||
parser->getObj(&obj3);
|
||
parser->getObj(&obj4);
|
||
if (obj1.isInt() && obj2.isInt() && obj3.isCmd("obj") && obj4.isDict())
|
||
{
|
||
obj4.dictLookup("Linearized", &obj5);
|
||
obj4.dictLookup("L", &obj6);
|
||
if (obj5.isNum() && obj5.getNum() > 0 && obj6.isNum())
|
||
{
|
||
unsigned long size = (unsigned long)obj6.getNum();
|
||
bLinearized = size == m_nFileLength;
|
||
}
|
||
obj6.free();
|
||
obj5.free();
|
||
}
|
||
obj4.free();
|
||
obj3.free();
|
||
obj2.free();
|
||
obj1.free();
|
||
delete parser;
|
||
|
||
sRes += bLinearized ? L"true" : L"false";
|
||
sRes += L",\"Tagged\":";
|
||
|
||
bool bTagged = false;
|
||
Object catDict, markInfoObj;
|
||
if (xref->getCatalog(&catDict) && catDict.isDict() && catDict.dictLookup("MarkInfo", &markInfoObj) && markInfoObj.isDict())
|
||
{
|
||
Object marked, suspects;
|
||
if (markInfoObj.dictLookup("Marked", &marked) && marked.isBool() && marked.getBool() == gTrue)
|
||
{
|
||
bTagged = true;
|
||
// If Suspects is true, the document may not completely conform to Tagged PDF conventions.
|
||
if (markInfoObj.dictLookup("Suspects", &suspects) && suspects.isBool() && suspects.getBool() == gTrue)
|
||
bTagged = false;
|
||
}
|
||
marked.free();
|
||
suspects.free();
|
||
}
|
||
markInfoObj.free();
|
||
catDict.free();
|
||
|
||
sRes += bTagged ? L"true}" : L"false}";
|
||
|
||
return sRes;
|
||
}
|
||
|
||
void getBookmars(PDFDoc* pdfDoc, OutlineItem* pOutlineItem, NSWasm::CData& out, int level)
|
||
{
|
||
int nLengthTitle = pOutlineItem->getTitleLength();
|
||
Unicode* pTitle = pOutlineItem->getTitle();
|
||
std::string sTitle = NSStringExt::CConverter::GetUtf8FromUTF32(pTitle, nLengthTitle);
|
||
|
||
LinkAction* pLinkAction = pOutlineItem->getAction();
|
||
if (!pLinkAction)
|
||
return;
|
||
LinkActionKind kind = pLinkAction->getKind();
|
||
if (kind != actionGoTo)
|
||
return;
|
||
|
||
GString* str = ((LinkGoTo*)pLinkAction)->getNamedDest();
|
||
LinkDest* pLinkDest = str ? pdfDoc->findDest(str) : ((LinkGoTo*)pLinkAction)->getDest();
|
||
if (!pLinkDest)
|
||
return;
|
||
int pg;
|
||
if (pLinkDest->isPageRef())
|
||
{
|
||
Ref pageRef = pLinkDest->getPageRef();
|
||
pg = pdfDoc->findPage(pageRef.num, pageRef.gen);
|
||
}
|
||
else
|
||
pg = pLinkDest->getPageNum();
|
||
if (pg == 0)
|
||
pg = 1;
|
||
double dy = 0;
|
||
double dTop = pLinkDest->getTop();
|
||
double dHeight = pdfDoc->getPageCropHeight(pg);
|
||
if (dTop > 0 && dTop < dHeight)
|
||
dy = dHeight - dTop;
|
||
if (str)
|
||
RELEASEOBJECT(pLinkDest);
|
||
|
||
out.AddInt(pg - 1);
|
||
out.AddInt(level);
|
||
out.AddDouble(dy);
|
||
out.WriteString((BYTE*)sTitle.c_str(), (unsigned int)sTitle.length());
|
||
|
||
pOutlineItem->open();
|
||
GList* pList = pOutlineItem->getKids();
|
||
if (!pList)
|
||
return;
|
||
for (int i = 0, num = pList->getLength(); i < num; i++)
|
||
{
|
||
OutlineItem* pOutlineItemKid = (OutlineItem*)pList->get(i);
|
||
if (!pOutlineItemKid)
|
||
continue;
|
||
getBookmars(pdfDoc, pOutlineItemKid, out, level + 1);
|
||
}
|
||
pOutlineItem->close();
|
||
}
|
||
BYTE* CPdfReader::GetStructure()
|
||
{
|
||
if (!m_pPDFDocument)
|
||
return NULL;
|
||
Outline* pOutline = m_pPDFDocument->getOutline();
|
||
if (!pOutline)
|
||
return NULL;
|
||
GList* pList = pOutline->getItems();
|
||
if (!pList)
|
||
return NULL;
|
||
|
||
NSWasm::CData oRes;
|
||
oRes.SkipLen();
|
||
int num = pList->getLength();
|
||
for (int i = 0; i < num; i++)
|
||
{
|
||
OutlineItem* pOutlineItem = (OutlineItem*)pList->get(i);
|
||
if (pOutlineItem)
|
||
getBookmars(m_pPDFDocument, pOutlineItem, oRes, 1);
|
||
}
|
||
oRes.WriteLen();
|
||
|
||
BYTE* bRes = oRes.GetBuffer();
|
||
oRes.ClearWithoutAttack();
|
||
return bRes;
|
||
}
|
||
BYTE* CPdfReader::GetLinks(int nPageIndex)
|
||
{
|
||
if (!m_pPDFDocument)
|
||
return NULL;
|
||
|
||
nPageIndex++;
|
||
|
||
NSWasm::CPageLink oLinks;
|
||
double height = m_pPDFDocument->getPageCropHeight(nPageIndex);
|
||
|
||
// Гиперссылка
|
||
Links* pLinks = m_pPDFDocument->getLinks(nPageIndex);
|
||
if (!pLinks)
|
||
return NULL;
|
||
|
||
int num = pLinks->getNumLinks();
|
||
for (int i = 0; i < num; i++)
|
||
{
|
||
Link* pLink = pLinks->getLink(i);
|
||
if (!pLink)
|
||
continue;
|
||
|
||
GString* str = NULL;
|
||
double x1 = 0.0, y1 = 0.0, x2 = 0.0, y2 = 0.0, dy = 0.0;
|
||
pLink->getRect(&x1, &y1, &x2, &y2);
|
||
y1 = height - y1;
|
||
y2 = height - y2;
|
||
|
||
LinkAction* pLinkAction = pLink->getAction();
|
||
if (!pLinkAction)
|
||
continue;
|
||
LinkActionKind kind = pLinkAction->getKind();
|
||
if (kind == actionGoTo)
|
||
{
|
||
str = ((LinkGoTo*)pLinkAction)->getNamedDest();
|
||
LinkDest* pLinkDest = str ? m_pPDFDocument->findDest(str) : ((LinkGoTo*)pLinkAction)->getDest()->copy();
|
||
if (pLinkDest)
|
||
{
|
||
int pg;
|
||
if (pLinkDest->isPageRef())
|
||
{
|
||
Ref pageRef = pLinkDest->getPageRef();
|
||
pg = m_pPDFDocument->findPage(pageRef.num, pageRef.gen);
|
||
}
|
||
else
|
||
pg = pLinkDest->getPageNum();
|
||
std::string sLink = "#" + std::to_string(pg - 1);
|
||
str = new GString(sLink.c_str());
|
||
dy = m_pPDFDocument->getPageCropHeight(pg) - pLinkDest->getTop();
|
||
}
|
||
RELEASEOBJECT(pLinkDest);
|
||
}
|
||
else if (kind == actionURI)
|
||
str = ((LinkURI*)pLinkAction)->getURI()->copy();
|
||
|
||
oLinks.m_arLinks.push_back({str ? std::string(str->getCString(), str->getLength()) : "", dy, x1, y2, x2 - x1, y1 - y2});
|
||
RELEASEOBJECT(str);
|
||
}
|
||
RELEASEOBJECT(pLinks);
|
||
|
||
// Текст-ссылка
|
||
TextOutputControl textOutControl;
|
||
textOutControl.mode = textOutReadingOrder;
|
||
TextOutputDev* pTextOut = new TextOutputDev(NULL, &textOutControl, gFalse);
|
||
m_pPDFDocument->displayPage(pTextOut, nPageIndex, 72.0, 72.0, 0, gFalse, gTrue, gFalse);
|
||
m_pPDFDocument->processLinks(pTextOut, nPageIndex);
|
||
TextWordList* pWordList = pTextOut->makeWordList();
|
||
for (int i = 0; i < pWordList->getLength(); i++)
|
||
{
|
||
TextWord* pWord = pWordList->get(i);
|
||
if (!pWord)
|
||
continue;
|
||
GString* sLink = pWord->getText();
|
||
if (!sLink)
|
||
continue;
|
||
std::string link(sLink->getCString(), sLink->getLength());
|
||
size_t find = link.find("http://");
|
||
if (find == std::string::npos)
|
||
find = link.find("https://");
|
||
if (find == std::string::npos)
|
||
find = link.find("www.");
|
||
if (find != std::string::npos)
|
||
{
|
||
link.erase(0, find);
|
||
double x1, y1, x2, y2;
|
||
pWord->getBBox(&x1, &y1, &x2, &y2);
|
||
oLinks.m_arLinks.push_back({link, 0, x1, y1, x2 - x1, y2 - y1});
|
||
}
|
||
}
|
||
RELEASEOBJECT(pTextOut);
|
||
|
||
return oLinks.Serialize();
|
||
}
|
||
BYTE* CPdfReader::GetWidgets()
|
||
{
|
||
if (!m_pPDFDocument || !m_pPDFDocument->getCatalog())
|
||
return NULL;
|
||
|
||
AcroForm* pAcroForms = m_pPDFDocument->getCatalog()->getForm();
|
||
if (!pAcroForms)
|
||
return NULL;
|
||
|
||
NSWasm::CData oRes;
|
||
oRes.SkipLen();
|
||
|
||
for (int i = 0, nNum = pAcroForms->getNumFields(); i < nNum; ++i)
|
||
{
|
||
AcroFormField* pField = pAcroForms->getField(i);
|
||
|
||
// Полное имя поля - T (parent_full_name.child_name)
|
||
int nLengthName;
|
||
Unicode* uName = pField->getName(&nLengthName);
|
||
std::string sName = NSStringExt::CConverter::GetUtf8FromUTF32(uName, nLengthName);
|
||
oRes.WriteString((BYTE*)sName.c_str(), (unsigned int)sName.length());
|
||
gfree(uName);
|
||
|
||
// Номер страницы - P
|
||
int nPage = pField->getPageNum();
|
||
oRes.AddInt(nPage - 1);
|
||
|
||
// Координаты - BBox
|
||
double dx1, dy1, dx2, dy2;
|
||
pField->getBBox(&dx1, &dy1, &dx2, &dy2);
|
||
double height = m_pPDFDocument->getPageCropHeight(nPage);
|
||
oRes.AddDouble(dx1);
|
||
oRes.AddDouble(height - dy1);
|
||
oRes.AddDouble(dx2);
|
||
oRes.AddDouble(height - dy2);
|
||
|
||
// Тип - FT + флаги
|
||
AcroFormFieldType oType = pField->getAcroFormFieldType();
|
||
std::string sType;
|
||
switch (oType)
|
||
{
|
||
case acroFormFieldPushbutton: sType = "button"; break;
|
||
case acroFormFieldRadioButton: sType = "radiobutton"; break;
|
||
case acroFormFieldCheckbox: sType = "checkbox"; break;
|
||
case acroFormFieldFileSelect: sType = "text"/*"fileselect"*/; break;
|
||
case acroFormFieldMultilineText: sType = "text"/*"multilinetext"*/; break;
|
||
case acroFormFieldText: sType = "text"; break;
|
||
case acroFormFieldBarcode: sType = "text"/*"barcode"*/; break;
|
||
case acroFormFieldComboBox: sType = "combobox"; break;
|
||
case acroFormFieldListBox: sType = "listbox"; break;
|
||
case acroFormFieldSignature: sType = "signature"; break;
|
||
default: sType = ""; break;
|
||
}
|
||
oRes.WriteString((BYTE*)sType.c_str(), (unsigned int)sType.length());
|
||
|
||
// Цвет - оператор g/rg в DA
|
||
// double r, g, b;
|
||
// pField->getColor(&r, &g, &b);
|
||
|
||
// Шрифт и размер шрифта - операторы Tf и Tm в DA
|
||
// Ref pFontRef; double dFontSize;
|
||
// pField->getFont(&pFontRef, &dFontSize);
|
||
|
||
// Флаг - Ff
|
||
unsigned int nFlag = pField->getFlags();
|
||
oRes.AddInt(nFlag);
|
||
|
||
int nFlags = 0;
|
||
Object oFieldRef, oField;
|
||
XRef* xref = m_pPDFDocument->getXRef();
|
||
std::string sTU;
|
||
if (!xref || !pField->getFieldRef(&oFieldRef) || !oFieldRef.isRef() || !oFieldRef.fetch(xref, &oField) || !oField.isDict())
|
||
{
|
||
oRes.AddInt(nFlags);
|
||
continue;
|
||
}
|
||
|
||
int nFlagPos = oRes.GetSize();
|
||
oRes.AddInt(nFlags);
|
||
|
||
// 1 - Альтернативное имя поля, используется во всплывающей подсказке и сообщениях об ошибке - TU
|
||
Object oTU;
|
||
if (oField.dictLookup("TU", &oTU) && oTU.isString())
|
||
{
|
||
TextString* s = new TextString(oTU.getString());
|
||
sTU = NSStringExt::CConverter::GetUtf8FromUTF32(s->getUnicode(), s->getLength());
|
||
nFlags |= (1 << 0);
|
||
oRes.WriteString((BYTE*)sTU.c_str(), (unsigned int)sTU.length());
|
||
delete s;
|
||
}
|
||
oTU.free();
|
||
|
||
// Значение поля - V
|
||
int nValueLength;
|
||
Unicode* pValue = pField->getValue(&nValueLength);
|
||
std::string sValue = NSStringExt::CConverter::GetUtf8FromUTF32(pValue, nValueLength);
|
||
gfree(pValue);
|
||
|
||
// Запись данных необходимых каждому типу
|
||
switch (oType)
|
||
{
|
||
case acroFormFieldRadioButton:
|
||
case acroFormFieldCheckbox:
|
||
{
|
||
// 2 - Включено
|
||
|
||
if (sValue != "Off")
|
||
nFlags |= (1 << 1);
|
||
|
||
// Если Checkbox/RadioButton наследует Opt, то состояние соответствует порядковому в массиве Kids из Opt
|
||
int nDepth = 0;
|
||
Object oParentObj;
|
||
oField.dictLookup("Parent", &oParentObj);
|
||
while (oParentObj.isDict() && nDepth < 50)
|
||
{
|
||
Object oOpt, oKids;
|
||
if (oParentObj.dictLookup("Opt", &oOpt) && oOpt.isArray() && oParentObj.dictLookup("Kids", &oKids) && oKids.isArray() && oOpt.arrayGetLength() == oKids.arrayGetLength())
|
||
{
|
||
for (int j = 0, nLength = oOpt.arrayGetLength(); j < nLength; ++j)
|
||
{
|
||
Object oOptJ, oOptI;
|
||
if (oKids.arrayGetNF(j, &oOptJ) && oOptJ.isRef() && oOptJ.getRefGen() == oFieldRef.getRefGen() && oOptJ.getRefNum() == oFieldRef.getRefNum() &&
|
||
oOpt.arrayGet(j, &oOptI) && oOptI.isString())
|
||
{
|
||
TextString* s = new TextString(oOptI.getString());
|
||
sValue = NSStringExt::CConverter::GetUtf8FromUTF32(s->getUnicode(), s->getLength());
|
||
if (sValue != "Off")
|
||
nFlags |= (1 << 1);
|
||
delete s;
|
||
}
|
||
oOptJ.free(); oOptI.free();
|
||
}
|
||
}
|
||
oOpt.free(); oKids.free();
|
||
|
||
Object oParentObj2;
|
||
oParentObj.dictLookup("Parent", &oParentObj2);
|
||
oParentObj.free();
|
||
oParentObj = oParentObj2;
|
||
++nDepth;
|
||
}
|
||
oParentObj.free();
|
||
|
||
break;
|
||
}
|
||
case acroFormFieldFileSelect:
|
||
case acroFormFieldMultilineText:
|
||
case acroFormFieldText:
|
||
case acroFormFieldBarcode:
|
||
{
|
||
// 2 - Значение
|
||
// 3 - Максимальное количество символов
|
||
|
||
if (!sValue.empty())
|
||
{
|
||
nFlags |= (1 << 1);
|
||
oRes.WriteString((BYTE*)sValue.c_str(), (unsigned int)sValue.length());
|
||
}
|
||
|
||
// Максимальное количество символов в Tx - MaxLen
|
||
int nMaxLen = pField->getMaxLen();
|
||
if (nMaxLen > 0)
|
||
{
|
||
nFlags |= (1 << 2);
|
||
oRes.AddInt(nMaxLen);
|
||
}
|
||
|
||
break;
|
||
}
|
||
case acroFormFieldComboBox:
|
||
case acroFormFieldListBox:
|
||
{
|
||
// 2 - Значение
|
||
// 3 - Список значений
|
||
|
||
if (!sValue.empty())
|
||
{
|
||
nFlags |= (1 << 1);
|
||
oRes.WriteString((BYTE*)sValue.c_str(), (unsigned int)sValue.length());
|
||
}
|
||
|
||
Object oOpt;
|
||
if (oField.dictLookup("Opt", &oOpt) && oOpt.isArray())
|
||
{
|
||
nFlags |= (1 << 2);
|
||
int nOptLength = oOpt.arrayGetLength();
|
||
oRes.AddInt(nOptLength);
|
||
for (int j = 0; j < nOptLength; ++j)
|
||
{
|
||
Object oOptJ;
|
||
if (!oOpt.arrayGet(j, &oOptJ) || !oOptJ.isString())
|
||
{
|
||
oOptJ.free();
|
||
continue;
|
||
}
|
||
|
||
TextString* s = new TextString(oOptJ.getString());
|
||
std::string sOpt = NSStringExt::CConverter::GetUtf8FromUTF32(s->getUnicode(), s->getLength());
|
||
oRes.WriteString((BYTE*)sOpt.c_str(), (unsigned int)sOpt.length());
|
||
delete s;
|
||
oOptJ.free();
|
||
}
|
||
}
|
||
oOpt.free();
|
||
|
||
break;
|
||
}
|
||
case acroFormFieldSignature:
|
||
{
|
||
break;
|
||
}
|
||
// Pushbutton не сохраняет постоянного значения, он не должен использовать записи V и DV
|
||
case acroFormFieldPushbutton:
|
||
default:
|
||
break;
|
||
}
|
||
oFieldRef.free(); oField.free();
|
||
|
||
oRes.AddInt(nFlags, nFlagPos);
|
||
}
|
||
|
||
oRes.WriteLen();
|
||
BYTE* bRes = oRes.GetBuffer();
|
||
oRes.ClearWithoutAttack();
|
||
return bRes;
|
||
}
|