// Copyright 2014 PDFium Authors. All rights reserved.
|
// Use of this source code is governed by a BSD-style license that can be
|
// found in the LICENSE file.
|
|
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
|
|
#include "public/fpdf_ext.h"
|
|
#include <memory>
|
|
#include "core/fpdfapi/cpdf_modulemgr.h"
|
#include "core/fpdfapi/parser/cpdf_array.h"
|
#include "core/fpdfapi/parser/cpdf_document.h"
|
#include "core/fpdfdoc/cpdf_annot.h"
|
#include "core/fpdfdoc/cpdf_interform.h"
|
#include "core/fpdfdoc/cpdf_metadata.h"
|
#include "core/fxcrt/fx_memory.h"
|
#include "core/fxcrt/xml/cxml_content.h"
|
#include "core/fxcrt/xml/cxml_element.h"
|
#include "fpdfsdk/fsdk_define.h"
|
#include "third_party/base/ptr_util.h"
|
|
#ifdef PDF_ENABLE_XFA
|
#include "fpdfsdk/fpdfxfa/cpdfxfa_context.h"
|
#endif // PDF_ENABLE_XFA
|
|
bool FPDF_UnSupportError(int nError) {
|
CFSDK_UnsupportInfo_Adapter* pAdapter =
|
CPDF_ModuleMgr::Get()->GetUnsupportInfoAdapter();
|
if (!pAdapter)
|
return false;
|
|
UNSUPPORT_INFO* info = static_cast<UNSUPPORT_INFO*>(pAdapter->GetUnspInfo());
|
if (info && info->FSDK_UnSupport_Handler)
|
info->FSDK_UnSupport_Handler(info, nError);
|
return true;
|
}
|
|
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
|
FSDK_SetUnSpObjProcessHandler(UNSUPPORT_INFO* unsp_info) {
|
if (!unsp_info || unsp_info->version != 1)
|
return false;
|
|
CPDF_ModuleMgr::Get()->SetUnsupportInfoAdapter(
|
pdfium::MakeUnique<CFSDK_UnsupportInfo_Adapter>(unsp_info));
|
return true;
|
}
|
|
void CheckUnSupportAnnot(CPDF_Document* pDoc, const CPDF_Annot* pPDFAnnot) {
|
CPDF_Annot::Subtype nAnnotSubtype = pPDFAnnot->GetSubtype();
|
if (nAnnotSubtype == CPDF_Annot::Subtype::THREED) {
|
FPDF_UnSupportError(FPDF_UNSP_ANNOT_3DANNOT);
|
} else if (nAnnotSubtype == CPDF_Annot::Subtype::SCREEN) {
|
const CPDF_Dictionary* pAnnotDict = pPDFAnnot->GetAnnotDict();
|
ByteString cbString;
|
if (pAnnotDict->KeyExist("IT"))
|
cbString = pAnnotDict->GetStringFor("IT");
|
if (cbString.Compare("Img") != 0)
|
FPDF_UnSupportError(FPDF_UNSP_ANNOT_SCREEN_MEDIA);
|
} else if (nAnnotSubtype == CPDF_Annot::Subtype::MOVIE) {
|
FPDF_UnSupportError(FPDF_UNSP_ANNOT_MOVIE);
|
} else if (nAnnotSubtype == CPDF_Annot::Subtype::SOUND) {
|
FPDF_UnSupportError(FPDF_UNSP_ANNOT_SOUND);
|
} else if (nAnnotSubtype == CPDF_Annot::Subtype::RICHMEDIA) {
|
FPDF_UnSupportError(FPDF_UNSP_ANNOT_SCREEN_RICHMEDIA);
|
} else if (nAnnotSubtype == CPDF_Annot::Subtype::FILEATTACHMENT) {
|
FPDF_UnSupportError(FPDF_UNSP_ANNOT_ATTACHMENT);
|
} else if (nAnnotSubtype == CPDF_Annot::Subtype::WIDGET) {
|
const CPDF_Dictionary* pAnnotDict = pPDFAnnot->GetAnnotDict();
|
ByteString cbString;
|
if (pAnnotDict->KeyExist("FT"))
|
cbString = pAnnotDict->GetStringFor("FT");
|
if (cbString.Compare("Sig") == 0)
|
FPDF_UnSupportError(FPDF_UNSP_ANNOT_SIG);
|
}
|
}
|
|
bool CheckSharedForm(const CXML_Element* pElement, ByteString cbName) {
|
size_t count = pElement->CountAttrs();
|
for (size_t i = 0; i < count; ++i) {
|
ByteString space;
|
ByteString name;
|
WideString value;
|
pElement->GetAttrByIndex(i, &space, &name, &value);
|
if (space == "xmlns" && name == "adhocwf" &&
|
value == L"http://ns.adobe.com/AcrobatAdhocWorkflow/1.0/") {
|
CXML_Element* pVersion =
|
pElement->GetElement("adhocwf", cbName.AsStringView(), 0);
|
if (!pVersion)
|
continue;
|
CXML_Content* pContent = ToContent(pVersion->GetChild(0));
|
if (!pContent)
|
continue;
|
switch (pContent->m_Content.GetInteger()) {
|
case 1:
|
FPDF_UnSupportError(FPDF_UNSP_DOC_SHAREDFORM_ACROBAT);
|
break;
|
case 2:
|
FPDF_UnSupportError(FPDF_UNSP_DOC_SHAREDFORM_FILESYSTEM);
|
break;
|
case 0:
|
FPDF_UnSupportError(FPDF_UNSP_DOC_SHAREDFORM_EMAIL);
|
break;
|
}
|
}
|
}
|
|
size_t nCount = pElement->CountChildren();
|
for (size_t i = 0; i < nCount; ++i) {
|
CXML_Element* pChild = ToElement(pElement->GetChild(i));
|
if (pChild && CheckSharedForm(pChild, cbName))
|
return true;
|
}
|
return false;
|
}
|
|
void CheckUnSupportError(CPDF_Document* pDoc, uint32_t err_code) {
|
// Security
|
if (err_code == FPDF_ERR_SECURITY) {
|
FPDF_UnSupportError(FPDF_UNSP_DOC_SECURITY);
|
return;
|
}
|
if (!pDoc)
|
return;
|
|
// Portfolios and Packages
|
const CPDF_Dictionary* pRootDict = pDoc->GetRoot();
|
if (pRootDict) {
|
ByteString cbString;
|
if (pRootDict->KeyExist("Collection")) {
|
FPDF_UnSupportError(FPDF_UNSP_DOC_PORTABLECOLLECTION);
|
return;
|
}
|
if (pRootDict->KeyExist("Names")) {
|
CPDF_Dictionary* pNameDict = pRootDict->GetDictFor("Names");
|
if (pNameDict && pNameDict->KeyExist("EmbeddedFiles")) {
|
FPDF_UnSupportError(FPDF_UNSP_DOC_ATTACHMENT);
|
return;
|
}
|
if (pNameDict && pNameDict->KeyExist("JavaScript")) {
|
CPDF_Dictionary* pJSDict = pNameDict->GetDictFor("JavaScript");
|
CPDF_Array* pArray = pJSDict ? pJSDict->GetArrayFor("Names") : nullptr;
|
if (pArray) {
|
for (size_t i = 0; i < pArray->GetCount(); i++) {
|
ByteString cbStr = pArray->GetStringAt(i);
|
if (cbStr.Compare("com.adobe.acrobat.SharedReview.Register") == 0) {
|
FPDF_UnSupportError(FPDF_UNSP_DOC_SHAREDREVIEW);
|
return;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
// SharedForm
|
CPDF_Metadata metaData(pDoc);
|
const CXML_Element* pElement = metaData.GetRoot();
|
if (pElement)
|
CheckSharedForm(pElement, "workflowType");
|
|
#ifndef PDF_ENABLE_XFA
|
// XFA Forms
|
CPDF_InterForm interform(pDoc);
|
if (interform.HasXFAForm())
|
FPDF_UnSupportError(FPDF_UNSP_DOC_XFAFORM);
|
#endif // PDF_ENABLE_XFA
|
}
|
|
FPDF_EXPORT int FPDF_CALLCONV FPDFDoc_GetPageMode(FPDF_DOCUMENT document) {
|
CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
|
if (!pDoc)
|
return PAGEMODE_UNKNOWN;
|
|
const CPDF_Dictionary* pRoot = pDoc->GetRoot();
|
if (!pRoot)
|
return PAGEMODE_UNKNOWN;
|
|
CPDF_Object* pName = pRoot->GetObjectFor("PageMode");
|
if (!pName)
|
return PAGEMODE_USENONE;
|
|
ByteString strPageMode = pName->GetString();
|
if (strPageMode.IsEmpty() || strPageMode.EqualNoCase("UseNone"))
|
return PAGEMODE_USENONE;
|
if (strPageMode.EqualNoCase("UseOutlines"))
|
return PAGEMODE_USEOUTLINES;
|
if (strPageMode.EqualNoCase("UseThumbs"))
|
return PAGEMODE_USETHUMBS;
|
if (strPageMode.EqualNoCase("FullScreen"))
|
return PAGEMODE_FULLSCREEN;
|
if (strPageMode.EqualNoCase("UseOC"))
|
return PAGEMODE_USEOC;
|
if (strPageMode.EqualNoCase("UseAttachments"))
|
return PAGEMODE_USEATTACHMENTS;
|
|
return PAGEMODE_UNKNOWN;
|
}
|
