Philip P. Moltmann | 4d3acf4 | 2017-03-20 11:05:52 -0700 | [diff] [blame^] | 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_ext.h" |
| 8 | |
| 9 | #include <memory> |
| 10 | |
| 11 | #include "core/fpdfapi/cpdf_modulemgr.h" |
| 12 | #include "core/fpdfapi/parser/cpdf_array.h" |
| 13 | #include "core/fpdfapi/parser/cpdf_document.h" |
| 14 | #include "core/fpdfdoc/cpdf_annot.h" |
| 15 | #include "core/fpdfdoc/cpdf_interform.h" |
| 16 | #include "core/fpdfdoc/cpdf_metadata.h" |
| 17 | #include "core/fxcrt/fx_basic.h" |
| 18 | #include "core/fxcrt/fx_memory.h" |
| 19 | #include "core/fxcrt/fx_xml.h" |
| 20 | #include "fpdfsdk/fsdk_define.h" |
| 21 | #include "third_party/base/ptr_util.h" |
| 22 | |
| 23 | #ifdef PDF_ENABLE_XFA |
| 24 | #include "fpdfsdk/fpdfxfa/cpdfxfa_context.h" |
| 25 | #endif // PDF_ENABLE_XFA |
| 26 | |
| 27 | bool FPDF_UnSupportError(int nError) { |
| 28 | CFSDK_UnsupportInfo_Adapter* pAdapter = |
| 29 | CPDF_ModuleMgr::Get()->GetUnsupportInfoAdapter(); |
| 30 | if (!pAdapter) |
| 31 | return false; |
| 32 | |
| 33 | UNSUPPORT_INFO* info = static_cast<UNSUPPORT_INFO*>(pAdapter->GetUnspInfo()); |
| 34 | if (info && info->FSDK_UnSupport_Handler) |
| 35 | info->FSDK_UnSupport_Handler(info, nError); |
| 36 | return true; |
| 37 | } |
| 38 | |
| 39 | DLLEXPORT FPDF_BOOL STDCALL |
| 40 | FSDK_SetUnSpObjProcessHandler(UNSUPPORT_INFO* unsp_info) { |
| 41 | if (!unsp_info || unsp_info->version != 1) |
| 42 | return false; |
| 43 | |
| 44 | CPDF_ModuleMgr::Get()->SetUnsupportInfoAdapter( |
| 45 | pdfium::MakeUnique<CFSDK_UnsupportInfo_Adapter>(unsp_info)); |
| 46 | return true; |
| 47 | } |
| 48 | |
| 49 | void CheckUnSupportAnnot(CPDF_Document* pDoc, const CPDF_Annot* pPDFAnnot) { |
| 50 | CPDF_Annot::Subtype nAnnotSubtype = pPDFAnnot->GetSubtype(); |
| 51 | if (nAnnotSubtype == CPDF_Annot::Subtype::THREED) { |
| 52 | FPDF_UnSupportError(FPDF_UNSP_ANNOT_3DANNOT); |
| 53 | } else if (nAnnotSubtype == CPDF_Annot::Subtype::SCREEN) { |
| 54 | const CPDF_Dictionary* pAnnotDict = pPDFAnnot->GetAnnotDict(); |
| 55 | CFX_ByteString cbString; |
| 56 | if (pAnnotDict->KeyExist("IT")) |
| 57 | cbString = pAnnotDict->GetStringFor("IT"); |
| 58 | if (cbString.Compare("Img") != 0) |
| 59 | FPDF_UnSupportError(FPDF_UNSP_ANNOT_SCREEN_MEDIA); |
| 60 | } else if (nAnnotSubtype == CPDF_Annot::Subtype::MOVIE) { |
| 61 | FPDF_UnSupportError(FPDF_UNSP_ANNOT_MOVIE); |
| 62 | } else if (nAnnotSubtype == CPDF_Annot::Subtype::SOUND) { |
| 63 | FPDF_UnSupportError(FPDF_UNSP_ANNOT_SOUND); |
| 64 | } else if (nAnnotSubtype == CPDF_Annot::Subtype::RICHMEDIA) { |
| 65 | FPDF_UnSupportError(FPDF_UNSP_ANNOT_SCREEN_RICHMEDIA); |
| 66 | } else if (nAnnotSubtype == CPDF_Annot::Subtype::FILEATTACHMENT) { |
| 67 | FPDF_UnSupportError(FPDF_UNSP_ANNOT_ATTACHMENT); |
| 68 | } else if (nAnnotSubtype == CPDF_Annot::Subtype::WIDGET) { |
| 69 | const CPDF_Dictionary* pAnnotDict = pPDFAnnot->GetAnnotDict(); |
| 70 | CFX_ByteString cbString; |
| 71 | if (pAnnotDict->KeyExist("FT")) |
| 72 | cbString = pAnnotDict->GetStringFor("FT"); |
| 73 | if (cbString.Compare("Sig") == 0) |
| 74 | FPDF_UnSupportError(FPDF_UNSP_ANNOT_SIG); |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | bool CheckSharedForm(const CXML_Element* pElement, CFX_ByteString cbName) { |
| 79 | int count = pElement->CountAttrs(); |
| 80 | int i = 0; |
| 81 | for (i = 0; i < count; i++) { |
| 82 | CFX_ByteString space, name; |
| 83 | CFX_WideString value; |
| 84 | pElement->GetAttrByIndex(i, space, name, value); |
| 85 | if (space == "xmlns" && name == "adhocwf" && |
| 86 | value == L"http://ns.adobe.com/AcrobatAdhocWorkflow/1.0/") { |
| 87 | CXML_Element* pVersion = |
| 88 | pElement->GetElement("adhocwf", cbName.AsStringC()); |
| 89 | if (!pVersion) |
| 90 | continue; |
| 91 | CFX_WideString wsContent = pVersion->GetContent(0); |
| 92 | int nType = wsContent.GetInteger(); |
| 93 | switch (nType) { |
| 94 | case 1: |
| 95 | FPDF_UnSupportError(FPDF_UNSP_DOC_SHAREDFORM_ACROBAT); |
| 96 | break; |
| 97 | case 2: |
| 98 | FPDF_UnSupportError(FPDF_UNSP_DOC_SHAREDFORM_FILESYSTEM); |
| 99 | break; |
| 100 | case 0: |
| 101 | FPDF_UnSupportError(FPDF_UNSP_DOC_SHAREDFORM_EMAIL); |
| 102 | break; |
| 103 | } |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | uint32_t nCount = pElement->CountChildren(); |
| 108 | for (i = 0; i < (int)nCount; i++) { |
| 109 | CXML_Element::ChildType childType = pElement->GetChildType(i); |
| 110 | if (childType == CXML_Element::Element) { |
| 111 | CXML_Element* pChild = pElement->GetElement(i); |
| 112 | if (CheckSharedForm(pChild, cbName)) |
| 113 | return true; |
| 114 | } |
| 115 | } |
| 116 | return false; |
| 117 | } |
| 118 | |
| 119 | void CheckUnSupportError(CPDF_Document* pDoc, uint32_t err_code) { |
| 120 | // Security |
| 121 | if (err_code == FPDF_ERR_SECURITY) { |
| 122 | FPDF_UnSupportError(FPDF_UNSP_DOC_SECURITY); |
| 123 | return; |
| 124 | } |
| 125 | if (!pDoc) |
| 126 | return; |
| 127 | |
| 128 | // Portfolios and Packages |
| 129 | CPDF_Dictionary* pRootDict = pDoc->GetRoot(); |
| 130 | if (pRootDict) { |
| 131 | CFX_ByteString cbString; |
| 132 | if (pRootDict->KeyExist("Collection")) { |
| 133 | FPDF_UnSupportError(FPDF_UNSP_DOC_PORTABLECOLLECTION); |
| 134 | return; |
| 135 | } |
| 136 | if (pRootDict->KeyExist("Names")) { |
| 137 | CPDF_Dictionary* pNameDict = pRootDict->GetDictFor("Names"); |
| 138 | if (pNameDict && pNameDict->KeyExist("EmbeddedFiles")) { |
| 139 | FPDF_UnSupportError(FPDF_UNSP_DOC_ATTACHMENT); |
| 140 | return; |
| 141 | } |
| 142 | if (pNameDict && pNameDict->KeyExist("JavaScript")) { |
| 143 | CPDF_Dictionary* pJSDict = pNameDict->GetDictFor("JavaScript"); |
| 144 | CPDF_Array* pArray = pJSDict ? pJSDict->GetArrayFor("Names") : nullptr; |
| 145 | if (pArray) { |
| 146 | for (size_t i = 0; i < pArray->GetCount(); i++) { |
| 147 | CFX_ByteString cbStr = pArray->GetStringAt(i); |
| 148 | if (cbStr.Compare("com.adobe.acrobat.SharedReview.Register") == 0) { |
| 149 | FPDF_UnSupportError(FPDF_UNSP_DOC_SHAREDREVIEW); |
| 150 | return; |
| 151 | } |
| 152 | } |
| 153 | } |
| 154 | } |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | // SharedForm |
| 159 | CPDF_Metadata metaData(pDoc); |
| 160 | const CXML_Element* pElement = metaData.GetRoot(); |
| 161 | if (pElement) |
| 162 | CheckSharedForm(pElement, "workflowType"); |
| 163 | |
| 164 | #ifndef PDF_ENABLE_XFA |
| 165 | // XFA Forms |
| 166 | CPDF_InterForm interform(pDoc); |
| 167 | if (interform.HasXFAForm()) |
| 168 | FPDF_UnSupportError(FPDF_UNSP_DOC_XFAFORM); |
| 169 | #endif // PDF_ENABLE_XFA |
| 170 | } |
| 171 | |
| 172 | DLLEXPORT int STDCALL FPDFDoc_GetPageMode(FPDF_DOCUMENT document) { |
| 173 | CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document); |
| 174 | if (!pDoc) |
| 175 | return PAGEMODE_UNKNOWN; |
| 176 | |
| 177 | CPDF_Dictionary* pRoot = pDoc->GetRoot(); |
| 178 | if (!pRoot) |
| 179 | return PAGEMODE_UNKNOWN; |
| 180 | |
| 181 | CPDF_Object* pName = pRoot->GetObjectFor("PageMode"); |
| 182 | if (!pName) |
| 183 | return PAGEMODE_USENONE; |
| 184 | |
| 185 | CFX_ByteString strPageMode = pName->GetString(); |
| 186 | if (strPageMode.IsEmpty() || strPageMode.EqualNoCase("UseNone")) |
| 187 | return PAGEMODE_USENONE; |
| 188 | if (strPageMode.EqualNoCase("UseOutlines")) |
| 189 | return PAGEMODE_USEOUTLINES; |
| 190 | if (strPageMode.EqualNoCase("UseThumbs")) |
| 191 | return PAGEMODE_USETHUMBS; |
| 192 | if (strPageMode.EqualNoCase("FullScreen")) |
| 193 | return PAGEMODE_FULLSCREEN; |
| 194 | if (strPageMode.EqualNoCase("UseOC")) |
| 195 | return PAGEMODE_USEOC; |
| 196 | if (strPageMode.EqualNoCase("UseAttachments")) |
| 197 | return PAGEMODE_USEATTACHMENTS; |
| 198 | |
| 199 | return PAGEMODE_UNKNOWN; |
| 200 | } |