bool CResourceScript::CheckForChange()
{
ADDTOCALLSTACK("CResourceScript::CheckForChange");
// Get Size/Date info on the file to see if it has changed.
time_t dateChange;
DWORD dwSize;
if ( ! CFileList::ReadFileInfo( GetFilePath(), dateChange, dwSize ))
{
DEBUG_ERR(( "Can't get stats info for file '%s'\n", static_cast<LPCTSTR>(GetFilePath()) ));
return false;
}
bool fChange = false;
// See If the script has changed
if ( ! IsFirstCheck())
{
if ( m_dwSize != dwSize || m_dateChange != dateChange )
{
g_Log.Event(LOGL_WARN, "Resource '%s' changed, resync.\n", static_cast<LPCTSTR>(GetFilePath()));
fChange = true;
}
}
m_dwSize = dwSize; // Compare to see if this has changed.
m_dateChange = dateChange; // real world time/date of last change.
return( fChange );
}
void CResourceScript::ReSync()
{
ADDTOCALLSTACK("CResourceScript::ReSync");
if ( ! IsFirstCheck())
{
if ( ! CheckForChange())
return;
}
if ( ! Open())
return;
g_Cfg.LoadResourcesOpen( this );
Close();
}
CPDF_DataAvail::DocAvailStatus CPDF_DataAvail::IsPageAvail(
uint32_t dwPage,
DownloadHints* pHints) {
if (!m_pDocument)
return DataError;
if (IsFirstCheck(dwPage)) {
m_bCurPageDictLoadOK = false;
m_bPageLoadedOK = false;
m_bAnnotsLoad = false;
m_bNeedDownLoadResource = false;
m_objs_array.clear();
m_ObjectSet.clear();
}
if (pdfium::ContainsKey(m_pagesLoadState, dwPage))
return DataAvailable;
if (m_pLinearized) {
if (dwPage == m_pLinearized->GetFirstPageNo()) {
DocAvailStatus nRet = CheckLinearizedFirstPage(dwPage, pHints);
if (nRet == DataAvailable)
m_pagesLoadState.insert(dwPage);
return nRet;
}
DocAvailStatus nResult = CheckLinearizedData(pHints);
if (nResult != DataAvailable)
return nResult;
if (m_pHintTables) {
nResult = m_pHintTables->CheckPage(dwPage, pHints);
if (nResult != DataAvailable)
return nResult;
m_pagesLoadState.insert(dwPage);
return GetPage(dwPage) ? DataAvailable : DataError;
}
if (m_bMainXRefLoadedOK) {
if (m_bTotalLoadPageTree) {
if (!LoadPages(pHints))
return DataNotAvailable;
} else {
if (!m_bCurPageDictLoadOK && !CheckPage(dwPage, pHints))
return DataNotAvailable;
}
} else {
if (!LoadAllFile(pHints))
return DataNotAvailable;
m_pDocument->GetParser()->RebuildCrossRef();
ResetFirstCheck(dwPage);
return DataAvailable;
}
} else {
if (!m_bTotalLoadPageTree && !m_bCurPageDictLoadOK &&
!CheckPage(dwPage, pHints)) {
return DataNotAvailable;
}
}
if (m_bHaveAcroForm && !m_bAcroFormLoad) {
if (!CheckAcroFormSubObject(pHints))
return DataNotAvailable;
m_bAcroFormLoad = true;
}
if (!m_bPageLoadedOK) {
if (m_objs_array.empty()) {
m_ObjectSet.clear();
FX_SAFE_INT32 safePage = pdfium::base::checked_cast<int32_t>(dwPage);
m_pPageDict = m_pDocument->GetPage(safePage.ValueOrDie());
if (!m_pPageDict) {
ResetFirstCheck(dwPage);
// This is XFA page.
return DataAvailable;
}
std::vector<CPDF_Object*> obj_array;
obj_array.push_back(m_pPageDict);
if (!AreObjectsAvailable(obj_array, true, pHints, m_objs_array))
return DataNotAvailable;
m_objs_array.clear();
} else {
std::vector<CPDF_Object*> new_objs_array;
if (!AreObjectsAvailable(m_objs_array, false, pHints, new_objs_array)) {
m_objs_array = new_objs_array;
return DataNotAvailable;
}
}
m_objs_array.clear();
m_bPageLoadedOK = true;
}
if (!m_bAnnotsLoad) {
if (!CheckPageAnnots(dwPage, pHints))
return DataNotAvailable;
m_bAnnotsLoad = true;
}
if (m_pPageDict && !m_bNeedDownLoadResource) {
m_pPageResource = m_pPageDict->GetObjectFor("Resources");
m_bNeedDownLoadResource =
m_pPageResource || HaveResourceAncestor(m_pPageDict);
}
if (m_bNeedDownLoadResource) {
if (!CheckResources(pHints))
return DataNotAvailable;
m_bNeedDownLoadResource = false;
}
m_bPageLoadedOK = false;
m_bAnnotsLoad = false;
m_bCurPageDictLoadOK = false;
ResetFirstCheck(dwPage);
m_pagesLoadState.insert(dwPage);
const bool is_page_valid = ValidatePage(dwPage);
(void)is_page_valid;
ASSERT(is_page_valid);
return DataAvailable;
}