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// Copyright 2016 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 "core/fpdfdoc/cpdf_filespec.h"
#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fpdfapi/parser/cpdf_name.h"
#include "core/fpdfapi/parser/cpdf_object.h"
#include "core/fpdfapi/parser/cpdf_string.h"
#include "core/fpdfapi/parser/fpdf_parser_decode.h"
#include "core/fxcrt/fx_system.h"
namespace {
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ || \
_FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
CFX_WideString ChangeSlashToPlatform(const FX_WCHAR* str) {
CFX_WideString result;
while (*str) {
if (*str == '/') {
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
result += ':';
#else
result += '\\';
#endif
} else {
result += *str;
}
str++;
}
return result;
}
CFX_WideString ChangeSlashToPDF(const FX_WCHAR* str) {
CFX_WideString result;
while (*str) {
if (*str == '\\' || *str == ':')
result += '/';
else
result += *str;
str++;
}
return result;
}
#endif // _FXM_PLATFORM_APPLE_ || _FXM_PLATFORM_WINDOWS_
} // namespace
CFX_WideString CPDF_FileSpec::DecodeFileName(const CFX_WideStringC& filepath) {
if (filepath.GetLength() <= 1)
return CFX_WideString();
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
if (filepath.Left(sizeof("/Mac") - 1) == CFX_WideStringC(L"/Mac"))
return ChangeSlashToPlatform(filepath.c_str() + 1);
return ChangeSlashToPlatform(filepath.c_str());
#elif _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
if (filepath.GetAt(0) != '/')
return ChangeSlashToPlatform(filepath.c_str());
if (filepath.GetAt(1) == '/')
return ChangeSlashToPlatform(filepath.c_str() + 1);
if (filepath.GetAt(2) == '/') {
CFX_WideString result;
result += filepath.GetAt(1);
result += ':';
result += ChangeSlashToPlatform(filepath.c_str() + 2);
return result;
}
CFX_WideString result;
result += '\\';
result += ChangeSlashToPlatform(filepath.c_str());
return result;
#else
return CFX_WideString(filepath);
#endif
}
bool CPDF_FileSpec::GetFileName(CFX_WideString* csFileName) const {
if (CPDF_Dictionary* pDict = m_pObj->AsDictionary()) {
*csFileName = pDict->GetUnicodeTextFor("UF");
if (csFileName->IsEmpty()) {
*csFileName =
CFX_WideString::FromLocal(pDict->GetStringFor("F").AsStringC());
}
if (pDict->GetStringFor("FS") == "URL")
return true;
if (csFileName->IsEmpty()) {
if (pDict->KeyExist("DOS")) {
*csFileName =
CFX_WideString::FromLocal(pDict->GetStringFor("DOS").AsStringC());
} else if (pDict->KeyExist("Mac")) {
*csFileName =
CFX_WideString::FromLocal(pDict->GetStringFor("Mac").AsStringC());
} else if (pDict->KeyExist("Unix")) {
*csFileName =
CFX_WideString::FromLocal(pDict->GetStringFor("Unix").AsStringC());
} else {
return false;
}
}
} else if (m_pObj->IsString()) {
*csFileName = CFX_WideString::FromLocal(m_pObj->GetString().AsStringC());
} else {
return false;
}
*csFileName = DecodeFileName(csFileName->AsStringC());
return true;
}
CPDF_FileSpec::CPDF_FileSpec(const CFX_WeakPtr<CFX_ByteStringPool>& pPool) {
m_pObj = new CPDF_Dictionary(pPool);
m_pObj->AsDictionary()->SetNewFor<CPDF_Name>("Type", "Filespec");
}
CFX_WideString CPDF_FileSpec::EncodeFileName(const CFX_WideStringC& filepath) {
if (filepath.GetLength() <= 1)
return CFX_WideString();
#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
if (filepath.GetAt(1) == ':') {
CFX_WideString result;
result = '/';
result += filepath.GetAt(0);
if (filepath.GetAt(2) != '\\')
result += '/';
result += ChangeSlashToPDF(filepath.c_str() + 2);
return result;
}
if (filepath.GetAt(0) == '\\' && filepath.GetAt(1) == '\\')
return ChangeSlashToPDF(filepath.c_str() + 1);
if (filepath.GetAt(0) == '\\') {
CFX_WideString result;
result = '/';
result += ChangeSlashToPDF(filepath.c_str());
return result;
}
return ChangeSlashToPDF(filepath.c_str());
#elif _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
if (filepath.Left(sizeof("Mac") - 1) == L"Mac") {
CFX_WideString result;
result = '/';
result += ChangeSlashToPDF(filepath.c_str());
return result;
}
return ChangeSlashToPDF(filepath.c_str());
#else
return CFX_WideString(filepath);
#endif
}
void CPDF_FileSpec::SetFileName(const CFX_WideStringC& wsFileName) {
if (!m_pObj)
return;
CFX_WideString wsStr = EncodeFileName(wsFileName);
if (m_pObj->IsString()) {
m_pObj->SetString(CFX_ByteString::FromUnicode(wsStr));
} else if (CPDF_Dictionary* pDict = m_pObj->AsDictionary()) {
pDict->SetNewFor<CPDF_String>("F", CFX_ByteString::FromUnicode(wsStr),
false);
pDict->SetNewFor<CPDF_String>("UF", PDF_EncodeText(wsStr), false);
}
}
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