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| 1 // Copyright 2014 PDFium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
| 6 | |
| 7 #include "public/fpdf_save.h" | |
| 8 | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "core/include/fpdfapi/cpdf_array.h" | |
| 12 #include "core/include/fpdfapi/cpdf_document.h" | |
| 13 #include "core/include/fpdfapi/cpdf_reference.h" | |
| 14 #include "core/include/fpdfapi/cpdf_string.h" | |
| 15 #include "core/include/fpdfapi/fpdf_serial.h" | |
| 16 #include "core/include/fxcrt/fx_ext.h" | |
| 17 #include "fpdfsdk/include/fsdk_define.h" | |
| 18 #include "public/fpdf_edit.h" | |
| 19 | |
| 20 #ifdef PDF_ENABLE_XFA | |
| 21 #include "fpdfsdk/include/fpdfxfa/fpdfxfa_app.h" | |
| 22 #include "fpdfsdk/include/fpdfxfa/fpdfxfa_doc.h" | |
| 23 #include "fpdfsdk/include/fpdfxfa/fpdfxfa_util.h" | |
| 24 #include "public/fpdf_formfill.h" | |
| 25 #endif | |
| 26 | |
| 27 #if _FX_OS_ == _FX_ANDROID_ | |
| 28 #include "time.h" | |
| 29 #else | |
| 30 #include <ctime> | |
| 31 #endif | |
| 32 | |
| 33 class CFX_IFileWrite final : public IFX_StreamWrite { | |
| 34 public: | |
| 35 CFX_IFileWrite(); | |
| 36 FX_BOOL Init(FPDF_FILEWRITE* pFileWriteStruct); | |
| 37 FX_BOOL WriteBlock(const void* pData, size_t size) override; | |
| 38 void Release() override; | |
| 39 | |
| 40 protected: | |
| 41 ~CFX_IFileWrite() override {} | |
| 42 | |
| 43 FPDF_FILEWRITE* m_pFileWriteStruct; | |
| 44 }; | |
| 45 | |
| 46 CFX_IFileWrite::CFX_IFileWrite() { | |
| 47 m_pFileWriteStruct = NULL; | |
| 48 } | |
| 49 | |
| 50 FX_BOOL CFX_IFileWrite::Init(FPDF_FILEWRITE* pFileWriteStruct) { | |
| 51 if (!pFileWriteStruct) | |
| 52 return FALSE; | |
| 53 | |
| 54 m_pFileWriteStruct = pFileWriteStruct; | |
| 55 return TRUE; | |
| 56 } | |
| 57 | |
| 58 FX_BOOL CFX_IFileWrite::WriteBlock(const void* pData, size_t size) { | |
| 59 if (!m_pFileWriteStruct) | |
| 60 return FALSE; | |
| 61 | |
| 62 m_pFileWriteStruct->WriteBlock(m_pFileWriteStruct, pData, size); | |
| 63 return TRUE; | |
| 64 } | |
| 65 | |
| 66 void CFX_IFileWrite::Release() { | |
| 67 delete this; | |
| 68 } | |
| 69 | |
| 70 namespace { | |
| 71 | |
| 72 #ifdef PDF_ENABLE_XFA | |
| 73 bool SaveXFADocumentData(CPDFXFA_Document* pDocument, | |
| 74 std::vector<ScopedFileStream>* fileList) { | |
| 75 if (!pDocument) | |
| 76 return false; | |
| 77 | |
| 78 if (pDocument->GetDocType() != DOCTYPE_DYNAMIC_XFA && | |
| 79 pDocument->GetDocType() != DOCTYPE_STATIC_XFA) | |
| 80 return true; | |
| 81 | |
| 82 if (!CPDFXFA_App::GetInstance()->GetXFAApp()) | |
| 83 return true; | |
| 84 | |
| 85 IXFA_DocView* pXFADocView = pDocument->GetXFADocView(); | |
| 86 if (!pXFADocView) | |
| 87 return true; | |
| 88 | |
| 89 IXFA_DocHandler* pXFADocHandler = | |
| 90 CPDFXFA_App::GetInstance()->GetXFAApp()->GetDocHandler(); | |
| 91 CPDF_Document* pPDFDocument = pDocument->GetPDFDoc(); | |
| 92 if (!pDocument) | |
| 93 return false; | |
| 94 | |
| 95 CPDF_Dictionary* pRoot = pPDFDocument->GetRoot(); | |
| 96 if (!pRoot) | |
| 97 return false; | |
| 98 | |
| 99 CPDF_Dictionary* pAcroForm = pRoot->GetDictBy("AcroForm"); | |
| 100 if (!pAcroForm) | |
| 101 return false; | |
| 102 | |
| 103 CPDF_Object* pXFA = pAcroForm->GetElement("XFA"); | |
| 104 if (!pXFA) | |
| 105 return true; | |
| 106 | |
| 107 if (!pXFA->IsArray()) | |
| 108 return false; | |
| 109 | |
| 110 CPDF_Array* pArray = pXFA->GetArray(); | |
| 111 if (!pArray) | |
| 112 return false; | |
| 113 | |
| 114 int size = pArray->GetCount(); | |
| 115 int iFormIndex = -1; | |
| 116 int iDataSetsIndex = -1; | |
| 117 int iTemplate = -1; | |
| 118 int iLast = size - 2; | |
| 119 for (int i = 0; i < size - 1; i++) { | |
| 120 CPDF_Object* pPDFObj = pArray->GetElement(i); | |
| 121 if (!pPDFObj->IsString()) | |
| 122 continue; | |
| 123 if (pPDFObj->GetString() == "form") | |
| 124 iFormIndex = i + 1; | |
| 125 else if (pPDFObj->GetString() == "datasets") | |
| 126 iDataSetsIndex = i + 1; | |
| 127 else if (pPDFObj->GetString() == "template") | |
| 128 iTemplate = i + 1; | |
| 129 } | |
| 130 std::unique_ptr<IXFA_ChecksumContext, ReleaseDeleter<IXFA_ChecksumContext>> | |
| 131 pContext(XFA_Checksum_Create()); | |
| 132 pContext->StartChecksum(); | |
| 133 | |
| 134 // template | |
| 135 if (iTemplate > -1) { | |
| 136 CPDF_Stream* pTemplateStream = pArray->GetStreamAt(iTemplate); | |
| 137 CPDF_StreamAcc streamAcc; | |
| 138 streamAcc.LoadAllData(pTemplateStream); | |
| 139 uint8_t* pData = (uint8_t*)streamAcc.GetData(); | |
| 140 FX_DWORD dwSize2 = streamAcc.GetSize(); | |
| 141 ScopedFileStream pTemplate(FX_CreateMemoryStream(pData, dwSize2)); | |
| 142 pContext->UpdateChecksum(pTemplate.get()); | |
| 143 } | |
| 144 CPDF_Stream* pFormStream = NULL; | |
| 145 CPDF_Stream* pDataSetsStream = NULL; | |
| 146 if (iFormIndex != -1) { | |
| 147 // Get form CPDF_Stream | |
| 148 CPDF_Object* pFormPDFObj = pArray->GetElement(iFormIndex); | |
| 149 if (pFormPDFObj->IsReference()) { | |
| 150 CPDF_Object* pFormDirectObj = pFormPDFObj->GetDirect(); | |
| 151 if (pFormDirectObj && pFormDirectObj->IsStream()) { | |
| 152 pFormStream = (CPDF_Stream*)pFormDirectObj; | |
| 153 } | |
| 154 } else if (pFormPDFObj->IsStream()) { | |
| 155 pFormStream = (CPDF_Stream*)pFormPDFObj; | |
| 156 } | |
| 157 } | |
| 158 | |
| 159 if (iDataSetsIndex != -1) { | |
| 160 // Get datasets CPDF_Stream | |
| 161 CPDF_Object* pDataSetsPDFObj = pArray->GetElement(iDataSetsIndex); | |
| 162 if (pDataSetsPDFObj->IsReference()) { | |
| 163 CPDF_Reference* pDataSetsRefObj = (CPDF_Reference*)pDataSetsPDFObj; | |
| 164 CPDF_Object* pDataSetsDirectObj = pDataSetsRefObj->GetDirect(); | |
| 165 if (pDataSetsDirectObj && pDataSetsDirectObj->IsStream()) { | |
| 166 pDataSetsStream = (CPDF_Stream*)pDataSetsDirectObj; | |
| 167 } | |
| 168 } else if (pDataSetsPDFObj->IsStream()) { | |
| 169 pDataSetsStream = (CPDF_Stream*)pDataSetsPDFObj; | |
| 170 } | |
| 171 } | |
| 172 // L"datasets" | |
| 173 { | |
| 174 ScopedFileStream pDsfileWrite(FX_CreateMemoryStream()); | |
| 175 if (pXFADocHandler->SavePackage(pXFADocView->GetDoc(), | |
| 176 CFX_WideStringC(L"datasets"), | |
| 177 pDsfileWrite.get()) && | |
| 178 pDsfileWrite->GetSize() > 0) { | |
| 179 // Datasets | |
| 180 pContext->UpdateChecksum(pDsfileWrite.get()); | |
| 181 pContext->FinishChecksum(); | |
| 182 CPDF_Dictionary* pDataDict = new CPDF_Dictionary; | |
| 183 if (iDataSetsIndex != -1) { | |
| 184 if (pDataSetsStream) | |
| 185 pDataSetsStream->InitStreamFromFile(pDsfileWrite.get(), pDataDict); | |
| 186 } else { | |
| 187 CPDF_Stream* pData = new CPDF_Stream(NULL, 0, NULL); | |
| 188 pData->InitStreamFromFile(pDsfileWrite.get(), pDataDict); | |
| 189 pPDFDocument->AddIndirectObject(pData); | |
| 190 iLast = pArray->GetCount() - 2; | |
| 191 pArray->InsertAt(iLast, new CPDF_String("datasets", FALSE)); | |
| 192 pArray->InsertAt(iLast + 1, pData, pPDFDocument); | |
| 193 } | |
| 194 fileList->push_back(std::move(pDsfileWrite)); | |
| 195 } | |
| 196 } | |
| 197 // L"form" | |
| 198 { | |
| 199 ScopedFileStream pfileWrite(FX_CreateMemoryStream()); | |
| 200 if (pXFADocHandler->SavePackage(pXFADocView->GetDoc(), | |
| 201 CFX_WideStringC(L"form"), pfileWrite.get(), | |
| 202 pContext.get()) && | |
| 203 pfileWrite->GetSize() > 0) { | |
| 204 CPDF_Dictionary* pDataDict = new CPDF_Dictionary; | |
| 205 if (iFormIndex != -1) { | |
| 206 if (pFormStream) | |
| 207 pFormStream->InitStreamFromFile(pfileWrite.get(), pDataDict); | |
| 208 } else { | |
| 209 CPDF_Stream* pData = new CPDF_Stream(NULL, 0, NULL); | |
| 210 pData->InitStreamFromFile(pfileWrite.get(), pDataDict); | |
| 211 pPDFDocument->AddIndirectObject(pData); | |
| 212 iLast = pArray->GetCount() - 2; | |
| 213 pArray->InsertAt(iLast, new CPDF_String("form", FALSE)); | |
| 214 pArray->InsertAt(iLast + 1, pData, pPDFDocument); | |
| 215 } | |
| 216 fileList->push_back(std::move(pfileWrite)); | |
| 217 } | |
| 218 } | |
| 219 return true; | |
| 220 } | |
| 221 | |
| 222 bool SendPostSaveToXFADoc(CPDFXFA_Document* pDocument) { | |
| 223 if (!pDocument) | |
| 224 return false; | |
| 225 | |
| 226 if (pDocument->GetDocType() != DOCTYPE_DYNAMIC_XFA && | |
| 227 pDocument->GetDocType() != DOCTYPE_STATIC_XFA) | |
| 228 return true; | |
| 229 | |
| 230 IXFA_DocView* pXFADocView = pDocument->GetXFADocView(); | |
| 231 if (!pXFADocView) | |
| 232 return false; | |
| 233 | |
| 234 IXFA_WidgetHandler* pWidgetHander = pXFADocView->GetWidgetHandler(); | |
| 235 CXFA_WidgetAcc* pWidgetAcc = NULL; | |
| 236 IXFA_WidgetAccIterator* pWidgetAccIterator = | |
| 237 pXFADocView->CreateWidgetAccIterator(); | |
| 238 pWidgetAcc = pWidgetAccIterator->MoveToNext(); | |
| 239 while (pWidgetAcc) { | |
| 240 CXFA_EventParam preParam; | |
| 241 preParam.m_eType = XFA_EVENT_PostSave; | |
| 242 pWidgetHander->ProcessEvent(pWidgetAcc, &preParam); | |
| 243 pWidgetAcc = pWidgetAccIterator->MoveToNext(); | |
| 244 } | |
| 245 pWidgetAccIterator->Release(); | |
| 246 pXFADocView->UpdateDocView(); | |
| 247 pDocument->_ClearChangeMark(); | |
| 248 return true; | |
| 249 } | |
| 250 | |
| 251 bool SendPreSaveToXFADoc(CPDFXFA_Document* pDocument, | |
| 252 std::vector<ScopedFileStream>* fileList) { | |
| 253 if (pDocument->GetDocType() != DOCTYPE_DYNAMIC_XFA && | |
| 254 pDocument->GetDocType() != DOCTYPE_STATIC_XFA) | |
| 255 return true; | |
| 256 | |
| 257 IXFA_DocView* pXFADocView = pDocument->GetXFADocView(); | |
| 258 if (!pXFADocView) | |
| 259 return true; | |
| 260 | |
| 261 IXFA_WidgetHandler* pWidgetHander = pXFADocView->GetWidgetHandler(); | |
| 262 CXFA_WidgetAcc* pWidgetAcc = NULL; | |
| 263 IXFA_WidgetAccIterator* pWidgetAccIterator = | |
| 264 pXFADocView->CreateWidgetAccIterator(); | |
| 265 pWidgetAcc = pWidgetAccIterator->MoveToNext(); | |
| 266 while (pWidgetAcc) { | |
| 267 CXFA_EventParam preParam; | |
| 268 preParam.m_eType = XFA_EVENT_PreSave; | |
| 269 pWidgetHander->ProcessEvent(pWidgetAcc, &preParam); | |
| 270 pWidgetAcc = pWidgetAccIterator->MoveToNext(); | |
| 271 } | |
| 272 pWidgetAccIterator->Release(); | |
| 273 pXFADocView->UpdateDocView(); | |
| 274 return SaveXFADocumentData(pDocument, fileList); | |
| 275 } | |
| 276 #endif // PDF_ENABLE_XFA | |
| 277 | |
| 278 bool FPDF_Doc_Save(FPDF_DOCUMENT document, | |
| 279 FPDF_FILEWRITE* pFileWrite, | |
| 280 FPDF_DWORD flags, | |
| 281 FPDF_BOOL bSetVersion, | |
| 282 int fileVerion) { | |
| 283 CPDF_Document* pPDFDoc = CPDFDocumentFromFPDFDocument(document); | |
| 284 if (!pPDFDoc) | |
| 285 return 0; | |
| 286 | |
| 287 #ifdef PDF_ENABLE_XFA | |
| 288 CPDFXFA_Document* pDoc = static_cast<CPDFXFA_Document*>(document); | |
| 289 std::vector<ScopedFileStream> fileList; | |
| 290 SendPreSaveToXFADoc(pDoc, &fileList); | |
| 291 #endif // PDF_ENABLE_XFA | |
| 292 | |
| 293 if (flags < FPDF_INCREMENTAL || flags > FPDF_REMOVE_SECURITY) | |
| 294 flags = 0; | |
| 295 | |
| 296 CPDF_Creator FileMaker(pPDFDoc); | |
| 297 if (bSetVersion) | |
| 298 FileMaker.SetFileVersion(fileVerion); | |
| 299 if (flags == FPDF_REMOVE_SECURITY) { | |
| 300 flags = 0; | |
| 301 FileMaker.RemoveSecurity(); | |
| 302 } | |
| 303 | |
| 304 CFX_IFileWrite* pStreamWrite = NULL; | |
| 305 pStreamWrite = new CFX_IFileWrite; | |
| 306 pStreamWrite->Init(pFileWrite); | |
| 307 bool bRet = FileMaker.Create(pStreamWrite, flags); | |
| 308 #ifdef PDF_ENABLE_XFA | |
| 309 SendPostSaveToXFADoc(pDoc); | |
| 310 #endif // PDF_ENABLE_XFA | |
| 311 pStreamWrite->Release(); | |
| 312 return bRet; | |
| 313 } | |
| 314 | |
| 315 } // namespace | |
| 316 | |
| 317 DLLEXPORT FPDF_BOOL STDCALL FPDF_SaveAsCopy(FPDF_DOCUMENT document, | |
| 318 FPDF_FILEWRITE* pFileWrite, | |
| 319 FPDF_DWORD flags) { | |
| 320 return FPDF_Doc_Save(document, pFileWrite, flags, FALSE, 0); | |
| 321 } | |
| 322 | |
| 323 DLLEXPORT FPDF_BOOL STDCALL FPDF_SaveWithVersion(FPDF_DOCUMENT document, | |
| 324 FPDF_FILEWRITE* pFileWrite, | |
| 325 FPDF_DWORD flags, | |
| 326 int fileVersion) { | |
| 327 return FPDF_Doc_Save(document, pFileWrite, flags, TRUE, fileVersion); | |
| 328 } | |
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Chromium Code Reviews
Issue 1799773002:
Move fpdfsdk/src up to fpdfsdk/. (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@master