1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
// 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_basic.h"
#include "core/fxcrt/fx_memory.h"
#include "core/fxcrt/fx_xml.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;
}
DLLEXPORT FPDF_BOOL STDCALL
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();
CFX_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();
CFX_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, CFX_ByteString cbName) {
int count = pElement->CountAttrs();
int i = 0;
for (i = 0; i < count; i++) {
CFX_ByteString space, name;
CFX_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.AsStringC());
if (!pVersion)
continue;
CFX_WideString wsContent = pVersion->GetContent(0);
int nType = wsContent.GetInteger();
switch (nType) {
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;
}
}
}
uint32_t nCount = pElement->CountChildren();
for (i = 0; i < (int)nCount; i++) {
CXML_Element::ChildType childType = pElement->GetChildType(i);
if (childType == CXML_Element::Element) {
CXML_Element* pChild = pElement->GetElement(i);
if (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
CPDF_Dictionary* pRootDict = pDoc->GetRoot();
if (pRootDict) {
CFX_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++) {
CFX_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
}
DLLEXPORT int STDCALL FPDFDoc_GetPageMode(FPDF_DOCUMENT document) {
CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
if (!pDoc)
return PAGEMODE_UNKNOWN;
CPDF_Dictionary* pRoot = pDoc->GetRoot();
if (!pRoot)
return PAGEMODE_UNKNOWN;
CPDF_Object* pName = pRoot->GetObjectFor("PageMode");
if (!pName)
return PAGEMODE_USENONE;
CFX_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;
}
|
