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-rw-r--r--core/fpdfapi/parser/cpdf_data_avail.cpp119
-rw-r--r--core/fpdfapi/parser/cpdf_data_avail.h13
-rw-r--r--core/fpdfapi/parser/cpdf_object_avail.h3
3 files changed, 27 insertions, 108 deletions
diff --git a/core/fpdfapi/parser/cpdf_data_avail.cpp b/core/fpdfapi/parser/cpdf_data_avail.cpp
index aac233e293..6a31cbf227 100644
--- a/core/fpdfapi/parser/cpdf_data_avail.cpp
+++ b/core/fpdfapi/parser/cpdf_data_avail.cpp
@@ -90,7 +90,6 @@ CPDF_DataAvail::CPDF_DataAvail(
m_bufferSize = 0;
m_PagesObjNum = 0;
m_dwCurrentXRefSteam = 0;
- m_dwAcroFormObjNum = 0;
m_dwInfoObjNum = 0;
m_pDocument = 0;
m_dwEncryptObjNum = 0;
@@ -103,11 +102,8 @@ CPDF_DataAvail::CPDF_DataAvail(
m_bPagesTreeLoad = false;
m_bMainXRefLoadedOK = false;
m_bAnnotsLoad = false;
- m_bHaveAcroForm = false;
- m_bAcroFormLoad = false;
m_bPageLoadedOK = false;
m_bNeedDownLoadResource = false;
- m_bLinearizedFormParamLoad = false;
m_pTrailer = nullptr;
m_pCurrentParser = nullptr;
m_pPageDict = nullptr;
@@ -214,53 +210,6 @@ CPDF_DataAvail::DocAvailStatus CPDF_DataAvail::IsDocAvail(
return DataAvailable;
}
-bool CPDF_DataAvail::CheckAcroFormSubObject() {
- if (m_objs_array.empty()) {
- std::vector<CPDF_Object*> obj_array(m_Acroforms.size());
- std::transform(
- m_Acroforms.begin(), m_Acroforms.end(), obj_array.begin(),
- [](const std::unique_ptr<CPDF_Object>& pObj) { return pObj.get(); });
-
- m_ObjectSet.clear();
- if (!AreObjectsAvailable(obj_array, false, m_objs_array))
- return false;
-
- m_objs_array.clear();
- return true;
- }
-
- std::vector<CPDF_Object*> new_objs_array;
- if (!AreObjectsAvailable(m_objs_array, false, new_objs_array)) {
- m_objs_array = new_objs_array;
- return false;
- }
-
- m_Acroforms.clear();
- return true;
-}
-
-bool CPDF_DataAvail::CheckAcroForm() {
- bool bExist = false;
- std::unique_ptr<CPDF_Object> pAcroForm =
- GetObject(m_dwAcroFormObjNum, &bExist);
- if (!bExist) {
- m_docStatus = PDF_DATAAVAIL_PAGETREE;
- return true;
- }
-
- if (!pAcroForm) {
- if (m_docStatus != PDF_DATAAVAIL_ERROR)
- return false;
-
- m_docStatus = PDF_DATAAVAIL_LOADALLFILE;
- return true;
- }
-
- m_Acroforms.push_back(std::move(pAcroForm));
- m_docStatus = PDF_DATAAVAIL_PAGETREE;
- return true;
-}
-
bool CPDF_DataAvail::CheckDocStatus() {
switch (m_docStatus) {
case PDF_DATAAVAIL_HEADER:
@@ -285,8 +234,6 @@ bool CPDF_DataAvail::CheckDocStatus() {
return CheckRoot();
case PDF_DATAAVAIL_INFO:
return CheckInfo();
- case PDF_DATAAVAIL_ACROFORM:
- return CheckAcroForm();
case PDF_DATAAVAIL_PAGETREE:
if (m_bTotalLoadPageTree)
return CheckPages();
@@ -379,8 +326,7 @@ bool CPDF_DataAvail::CheckInfo() {
m_docStatus = PDF_DATAAVAIL_ERROR;
return false;
}
- m_docStatus =
- m_bHaveAcroForm ? PDF_DATAAVAIL_ACROFORM : PDF_DATAAVAIL_PAGETREE;
+ m_docStatus = PDF_DATAAVAIL_PAGETREE;
return true;
}
@@ -413,19 +359,8 @@ bool CPDF_DataAvail::CheckRoot() {
}
m_PagesObjNum = pRef->GetRefObjNum();
- CPDF_Reference* pAcroFormRef =
- ToReference(m_pRoot->GetDict()->GetObjectFor("AcroForm"));
- if (pAcroFormRef) {
- m_bHaveAcroForm = true;
- m_dwAcroFormObjNum = pAcroFormRef->GetRefObjNum();
- }
- if (m_dwInfoObjNum) {
- m_docStatus = PDF_DATAAVAIL_INFO;
- } else {
- m_docStatus =
- m_bHaveAcroForm ? PDF_DATAAVAIL_ACROFORM : PDF_DATAAVAIL_PAGETREE;
- }
+ m_docStatus = m_dwInfoObjNum ? PDF_DATAAVAIL_INFO : PDF_DATAAVAIL_PAGETREE;
return true;
}
@@ -1312,11 +1247,8 @@ CPDF_DataAvail::DocAvailStatus CPDF_DataAvail::IsPageAvail(
}
}
- if (m_bHaveAcroForm && !m_bAcroFormLoad) {
- if (!CheckAcroFormSubObject())
- return DataNotAvailable;
- m_bAcroFormLoad = true;
- }
+ if (CheckAcroForm() == DocFormStatus::FormNotAvailable)
+ return DataNotAvailable;
if (!m_bPageLoadedOK) {
if (m_objs_array.empty()) {
@@ -1442,10 +1374,14 @@ CPDF_Dictionary* CPDF_DataAvail::GetPage(int index) {
CPDF_DataAvail::DocFormStatus CPDF_DataAvail::IsFormAvail(
DownloadHints* pHints) {
+ const HintsScope hints_scope(GetValidator().Get(), pHints);
+ return CheckAcroForm();
+}
+
+CPDF_DataAvail::DocFormStatus CPDF_DataAvail::CheckAcroForm() {
if (!m_pDocument)
return FormAvailable;
- const HintsScope hints_scope(GetValidator().Get(), pHints);
if (m_pLinearized) {
DocAvailStatus nDocStatus = CheckLinearizedData();
if (nDocStatus == DataError)
@@ -1454,7 +1390,7 @@ CPDF_DataAvail::DocFormStatus CPDF_DataAvail::IsFormAvail(
return FormNotAvailable;
}
- if (!m_bLinearizedFormParamLoad) {
+ if (!m_pFormAvail) {
const CPDF_Dictionary* pRoot = m_pDocument->GetRoot();
if (!pRoot)
return FormAvailable;
@@ -1463,20 +1399,20 @@ CPDF_DataAvail::DocFormStatus CPDF_DataAvail::IsFormAvail(
if (!pAcroForm)
return FormNotExist;
- m_objs_array.push_back(pAcroForm->GetDict());
- m_bLinearizedFormParamLoad = true;
+ m_pFormAvail = pdfium::MakeUnique<CPDF_PageObjectAvail>(
+ GetValidator().Get(), m_pDocument, pAcroForm);
}
-
- std::vector<CPDF_Object*> new_objs_array;
- if (!AreObjectsAvailable(m_objs_array, false, new_objs_array)) {
- m_objs_array = new_objs_array;
- return FormNotAvailable;
+ switch (m_pFormAvail->CheckAvail()) {
+ case DocAvailStatus::DataError:
+ return DocFormStatus::FormError;
+ case DocAvailStatus::DataNotAvailable:
+ return DocFormStatus::FormNotAvailable;
+ case DocAvailStatus::DataAvailable:
+ return DocFormStatus::FormAvailable;
+ default:
+ NOTREACHED();
}
-
- m_objs_array.clear();
- if (!ValidateForm())
- return FormError;
- return FormAvailable;
+ return DocFormStatus::FormError;
}
bool CPDF_DataAvail::ValidatePage(uint32_t dwPage) {
@@ -1488,17 +1424,6 @@ bool CPDF_DataAvail::ValidatePage(uint32_t dwPage) {
return obj_avail.CheckAvail() == DocAvailStatus::DataAvailable;
}
-bool CPDF_DataAvail::ValidateForm() {
- const CPDF_Dictionary* pRoot = m_pDocument->GetRoot();
- if (!pRoot)
- return true;
- CPDF_Object* pAcroForm = pRoot->GetObjectFor("AcroForm");
- if (!pAcroForm)
- return false;
- CPDF_PageObjectAvail obj_avail(GetValidator().Get(), m_pDocument, pAcroForm);
- return obj_avail.CheckAvail() == DocAvailStatus::DataAvailable;
-}
-
CPDF_DataAvail::PageNode::PageNode() : m_type(PDF_PAGENODE_UNKNOWN) {}
CPDF_DataAvail::PageNode::~PageNode() {}
diff --git a/core/fpdfapi/parser/cpdf_data_avail.h b/core/fpdfapi/parser/cpdf_data_avail.h
index 7737ec0c3a..62a0e29773 100644
--- a/core/fpdfapi/parser/cpdf_data_avail.h
+++ b/core/fpdfapi/parser/cpdf_data_avail.h
@@ -19,6 +19,7 @@ class CPDF_Dictionary;
class CPDF_HintTables;
class CPDF_IndirectObjectHolder;
class CPDF_LinearizedHeader;
+class CPDF_PageObjectAvail;
class CPDF_Parser;
class CPDF_ReadValidator;
@@ -33,8 +34,6 @@ enum PDF_DATAAVAIL_STATUS {
PDF_DATAAVAIL_LOADALLCROSSREF,
PDF_DATAAVAIL_ROOT,
PDF_DATAAVAIL_INFO,
- PDF_DATAAVAIL_ACROFORM,
- PDF_DATAAVAIL_ACROFORM_SUBOBJECT,
PDF_DATAAVAIL_PAGETREE,
PDF_DATAAVAIL_PAGE,
PDF_DATAAVAIL_PAGE_LATERLOAD,
@@ -140,8 +139,7 @@ class CPDF_DataAvail final {
bool CheckPages();
bool CheckPage();
bool CheckResources();
- bool CheckAcroForm();
- bool CheckAcroFormSubObject();
+ DocFormStatus CheckAcroForm();
bool CheckPageStatus();
bool IsLinearizedFile(uint8_t* pData, uint32_t dwLen);
@@ -176,7 +174,6 @@ class CPDF_DataAvail final {
bool IsFirstCheck(uint32_t dwPage);
void ResetFirstCheck(uint32_t dwPage);
bool ValidatePage(uint32_t dwPage);
- bool ValidateForm();
FileAvail* const m_pFileAvail;
RetainPtr<CPDF_ReadValidator> m_pFileRead;
@@ -214,15 +211,11 @@ class CPDF_DataAvail final {
CPDF_Parser* m_pCurrentParser;
FX_FILESIZE m_dwCurrentXRefSteam;
bool m_bAnnotsLoad;
- bool m_bHaveAcroForm;
- uint32_t m_dwAcroFormObjNum;
- bool m_bAcroFormLoad;
- std::vector<std::unique_ptr<CPDF_Object>> m_Acroforms;
CPDF_Dictionary* m_pPageDict;
CPDF_Object* m_pPageResource;
bool m_bNeedDownLoadResource;
bool m_bPageLoadedOK;
- bool m_bLinearizedFormParamLoad;
+ std::unique_ptr<CPDF_PageObjectAvail> m_pFormAvail;
std::vector<std::unique_ptr<CPDF_Object>> m_PagesArray;
uint32_t m_dwEncryptObjNum;
FX_FILESIZE m_dwPrevXRefOffset;
diff --git a/core/fpdfapi/parser/cpdf_object_avail.h b/core/fpdfapi/parser/cpdf_object_avail.h
index 040cec7252..f593ea2159 100644
--- a/core/fpdfapi/parser/cpdf_object_avail.h
+++ b/core/fpdfapi/parser/cpdf_object_avail.h
@@ -43,7 +43,8 @@ class CPDF_ObjectAvail {
bool HasObjectParsed(uint32_t obj_num) const;
UnownedPtr<CPDF_ReadValidator> validator_;
- UnownedPtr<CPDF_IndirectObjectHolder> holder_;
+ // TODO(art-snake): Make it UnownedPtr<, after fix document owning issue.
+ CPDF_IndirectObjectHolder* holder_;
MaybeOwned<const CPDF_Object> root_;
std::set<uint32_t> parsed_objnums_;
std::stack<uint32_t> non_parsed_objects_;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-12 12:02:22 +0000