// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "public/fpdf_ext.h"
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#include <memory>
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#include "core/fpdfapi/fpdf_parser/include/cpdf_array.h"
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#include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
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#include "core/fpdfapi/include/cpdf_modulemgr.h"
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#include "core/fxcrt/include/fx_basic.h"
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#include "core/fxcrt/include/fx_xml.h"
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#include "fpdfsdk/include/fsdk_define.h"
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#ifdef PDF_ENABLE_XFA
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#include "fpdfsdk/fpdfxfa/include/fpdfxfa_doc.h"
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#endif // PDF_ENABLE_XFA
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#define FPDFSDK_UNSUPPORT_CALL 100
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class CFSDK_UnsupportInfo_Adapter : public CFX_Deletable {
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public:
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explicit CFSDK_UnsupportInfo_Adapter(UNSUPPORT_INFO* unsp_info)
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: m_unsp_info(unsp_info) {}
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void ReportError(int nErrorType);
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private:
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UNSUPPORT_INFO* const m_unsp_info;
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};
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void CFSDK_UnsupportInfo_Adapter::ReportError(int nErrorType) {
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if (m_unsp_info && m_unsp_info->FSDK_UnSupport_Handler) {
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m_unsp_info->FSDK_UnSupport_Handler(m_unsp_info, nErrorType);
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}
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}
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FX_BOOL FPDF_UnSupportError(int nError) {
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CFSDK_UnsupportInfo_Adapter* pAdapter =
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static_cast<CFSDK_UnsupportInfo_Adapter*>(
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CPDF_ModuleMgr::Get()->GetUnsupportInfoAdapter());
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if (!pAdapter)
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return FALSE;
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pAdapter->ReportError(nError);
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return TRUE;
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}
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DLLEXPORT FPDF_BOOL STDCALL
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FSDK_SetUnSpObjProcessHandler(UNSUPPORT_INFO* unsp_info) {
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if (!unsp_info || unsp_info->version != 1)
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return FALSE;
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CPDF_ModuleMgr::Get()->SetUnsupportInfoAdapter(std::unique_ptr<CFX_Deletable>(
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new CFSDK_UnsupportInfo_Adapter(unsp_info)));
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return TRUE;
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}
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void CheckUnSupportAnnot(CPDF_Document* pDoc, const CPDF_Annot* pPDFAnnot) {
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CFX_ByteString cbSubType = pPDFAnnot->GetSubType();
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if (cbSubType.Compare("3D") == 0) {
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FPDF_UnSupportError(FPDF_UNSP_ANNOT_3DANNOT);
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} else if (cbSubType.Compare("Screen") == 0) {
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const CPDF_Dictionary* pAnnotDict = pPDFAnnot->GetAnnotDict();
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CFX_ByteString cbString;
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if (pAnnotDict->KeyExist("IT"))
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cbString = pAnnotDict->GetStringBy("IT");
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if (cbString.Compare("Img") != 0)
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FPDF_UnSupportError(FPDF_UNSP_ANNOT_SCREEN_MEDIA);
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} else if (cbSubType.Compare("Movie") == 0) {
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FPDF_UnSupportError(FPDF_UNSP_ANNOT_MOVIE);
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} else if (cbSubType.Compare("Sound") == 0) {
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FPDF_UnSupportError(FPDF_UNSP_ANNOT_SOUND);
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} else if (cbSubType.Compare("RichMedia") == 0) {
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FPDF_UnSupportError(FPDF_UNSP_ANNOT_SCREEN_RICHMEDIA);
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} else if (cbSubType.Compare("FileAttachment") == 0) {
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FPDF_UnSupportError(FPDF_UNSP_ANNOT_ATTACHMENT);
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} else if (cbSubType.Compare("Widget") == 0) {
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const CPDF_Dictionary* pAnnotDict = pPDFAnnot->GetAnnotDict();
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CFX_ByteString cbString;
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if (pAnnotDict->KeyExist("FT")) {
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cbString = pAnnotDict->GetStringBy("FT");
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}
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if (cbString.Compare("Sig") == 0) {
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FPDF_UnSupportError(FPDF_UNSP_ANNOT_SIG);
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}
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}
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}
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FX_BOOL CheckSharedForm(const CXML_Element* pElement, CFX_ByteString cbName) {
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int count = pElement->CountAttrs();
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int i = 0;
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for (i = 0; i < count; i++) {
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CFX_ByteString space, name;
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CFX_WideString value;
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pElement->GetAttrByIndex(i, space, name, value);
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if (space == "xmlns" && name == "adhocwf" &&
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value == L"http://ns.adobe.com/AcrobatAdhocWorkflow/1.0/") {
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CXML_Element* pVersion =
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pElement->GetElement("adhocwf", cbName.AsStringC());
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if (!pVersion)
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continue;
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CFX_WideString wsContent = pVersion->GetContent(0);
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int nType = wsContent.GetInteger();
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switch (nType) {
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case 1:
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FPDF_UnSupportError(FPDF_UNSP_DOC_SHAREDFORM_ACROBAT);
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break;
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case 2:
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FPDF_UnSupportError(FPDF_UNSP_DOC_SHAREDFORM_FILESYSTEM);
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break;
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case 0:
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FPDF_UnSupportError(FPDF_UNSP_DOC_SHAREDFORM_EMAIL);
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break;
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}
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}
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}
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uint32_t nCount = pElement->CountChildren();
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for (i = 0; i < (int)nCount; i++) {
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CXML_Element::ChildType childType = pElement->GetChildType(i);
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if (childType == CXML_Element::Element) {
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CXML_Element* pChild = pElement->GetElement(i);
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if (CheckSharedForm(pChild, cbName))
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return TRUE;
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}
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}
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return FALSE;
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}
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void CheckUnSupportError(CPDF_Document* pDoc, uint32_t err_code) {
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// Security
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if (err_code == FPDF_ERR_SECURITY) {
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FPDF_UnSupportError(FPDF_UNSP_DOC_SECURITY);
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return;
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}
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if (!pDoc)
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return;
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// Portfolios and Packages
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CPDF_Dictionary* pRootDict = pDoc->GetRoot();
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if (pRootDict) {
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CFX_ByteString cbString;
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if (pRootDict->KeyExist("Collection")) {
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FPDF_UnSupportError(FPDF_UNSP_DOC_PORTABLECOLLECTION);
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return;
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}
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if (pRootDict->KeyExist("Names")) {
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CPDF_Dictionary* pNameDict = pRootDict->GetDictBy("Names");
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if (pNameDict && pNameDict->KeyExist("EmbeddedFiles")) {
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FPDF_UnSupportError(FPDF_UNSP_DOC_ATTACHMENT);
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return;
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}
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if (pNameDict && pNameDict->KeyExist("JavaScript")) {
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CPDF_Dictionary* pJSDict = pNameDict->GetDictBy("JavaScript");
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CPDF_Array* pArray = pJSDict ? pJSDict->GetArrayBy("Names") : nullptr;
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if (pArray) {
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for (size_t i = 0; i < pArray->GetCount(); i++) {
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CFX_ByteString cbStr = pArray->GetStringAt(i);
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if (cbStr.Compare("com.adobe.acrobat.SharedReview.Register") == 0) {
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FPDF_UnSupportError(FPDF_UNSP_DOC_SHAREDREVIEW);
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return;
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}
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}
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}
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}
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}
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}
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// SharedForm
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CPDF_Metadata metaData(pDoc);
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const CXML_Element* pElement = metaData.GetRoot();
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if (pElement)
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CheckSharedForm(pElement, "workflowType");
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#ifndef PDF_ENABLE_XFA
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// XFA Forms
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CPDF_InterForm interform(pDoc);
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if (interform.HasXFAForm())
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FPDF_UnSupportError(FPDF_UNSP_DOC_XFAFORM);
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#endif // PDF_ENABLE_XFA
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}
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DLLEXPORT int STDCALL FPDFDoc_GetPageMode(FPDF_DOCUMENT document) {
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CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
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if (!pDoc)
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return PAGEMODE_UNKNOWN;
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CPDF_Dictionary* pRoot = pDoc->GetRoot();
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if (!pRoot)
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return PAGEMODE_UNKNOWN;
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CPDF_Object* pName = pRoot->GetObjectBy("PageMode");
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if (!pName)
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return PAGEMODE_USENONE;
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CFX_ByteString strPageMode = pName->GetString();
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if (strPageMode.IsEmpty() || strPageMode.EqualNoCase("UseNone"))
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return PAGEMODE_USENONE;
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if (strPageMode.EqualNoCase("UseOutlines"))
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return PAGEMODE_USEOUTLINES;
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if (strPageMode.EqualNoCase("UseThumbs"))
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return PAGEMODE_USETHUMBS;
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if (strPageMode.EqualNoCase("FullScreen"))
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return PAGEMODE_FULLSCREEN;
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if (strPageMode.EqualNoCase("UseOC"))
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return PAGEMODE_USEOC;
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if (strPageMode.EqualNoCase("UseAttachments"))
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return PAGEMODE_USEATTACHMENTS;
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return PAGEMODE_UNKNOWN;
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}
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