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-rw-r--r--fpdfsdk/javascript/Document.cpp32
-rw-r--r--fpdfsdk/javascript/Field.cpp6
-rw-r--r--fpdfsdk/javascript/JS_Define.h82
-rw-r--r--fpdfsdk/javascript/JS_EventHandler.cpp30
-rw-r--r--fpdfsdk/javascript/app.cpp11
-rw-r--r--fxjs/fxjs_v8.cpp6
-rw-r--r--testing/resources/javascript/bug_695826.in47
-rw-r--r--testing/resources/javascript/bug_695826_expected.txt1
8 files changed, 140 insertions, 75 deletions
diff --git a/fpdfsdk/javascript/Document.cpp b/fpdfsdk/javascript/Document.cpp
index 536d654463..6928a061a2 100644
--- a/fpdfsdk/javascript/Document.cpp
+++ b/fpdfsdk/javascript/Document.cpp
@@ -299,11 +299,13 @@ bool Document::getField(CJS_Runtime* pRuntime,
v8::Local<v8::Object> pFieldObj =
pRuntime->NewFxDynamicObj(CJS_Field::g_nObjDefnID);
+ if (pFieldObj.IsEmpty())
+ return false;
+
CJS_Field* pJSField =
static_cast<CJS_Field*>(pRuntime->GetObjectPrivate(pFieldObj));
Field* pField = static_cast<Field*>(pJSField->GetEmbedObject());
pField->AttachField(this, wideName);
-
vRet = CJS_Value(pRuntime, pJSField);
return true;
}
@@ -1111,13 +1113,7 @@ bool Document::getAnnot(CJS_Runtime* pRuntime,
CJS_Annot* pJS_Annot =
static_cast<CJS_Annot*>(pRuntime->GetObjectPrivate(pObj));
- if (!pJS_Annot)
- return false;
-
Annot* pAnnot = static_cast<Annot*>(pJS_Annot->GetEmbedObject());
- if (!pAnnot)
- return false;
-
pAnnot->SetSDKAnnot(pSDKBAAnnot);
vRet = CJS_Value(pRuntime, pJS_Annot);
return true;
@@ -1155,13 +1151,7 @@ bool Document::getAnnots(CJS_Runtime* pRuntime,
CJS_Annot* pJS_Annot =
static_cast<CJS_Annot*>(pRuntime->GetObjectPrivate(pObj));
- if (!pJS_Annot)
- return false;
-
Annot* pAnnot = static_cast<Annot*>(pJS_Annot->GetEmbedObject());
- if (!pAnnot)
- return false;
-
pAnnot->SetSDKAnnot(static_cast<CPDFSDK_BAAnnot*>(pSDKAnnotCur.Get()));
annots.SetElement(pRuntime, i, CJS_Value(pRuntime, pJS_Annot));
}
@@ -1258,13 +1248,7 @@ bool Document::icons(CJS_Runtime* pRuntime,
CJS_Icon* pJS_Icon =
static_cast<CJS_Icon*>(pRuntime->GetObjectPrivate(pObj));
- if (!pJS_Icon)
- return false;
-
Icon* pIcon = static_cast<Icon*>(pJS_Icon->GetEmbedObject());
- if (!pIcon)
- return false;
-
pIcon->SetIconName(pIconElement->IconName);
Icons.SetElement(pRuntime, i++, CJS_Value(pRuntime, pJS_Icon));
}
@@ -1297,13 +1281,7 @@ bool Document::getIcon(CJS_Runtime* pRuntime,
CJS_Icon* pJS_Icon =
static_cast<CJS_Icon*>(pRuntime->GetObjectPrivate(pObj));
- if (!pJS_Icon)
- return false;
-
- Icon* pIcon = (Icon*)pJS_Icon->GetEmbedObject();
- if (!pIcon)
- return false;
-
+ Icon* pIcon = static_cast<Icon*>(pJS_Icon->GetEmbedObject());
pIcon->SetIconName(swIconName);
vRet = CJS_Value(pRuntime, pJS_Icon);
return true;
@@ -1473,6 +1451,8 @@ bool Document::getPrintParams(CJS_Runtime* pRuntime,
CFX_WideString& sError) {
v8::Local<v8::Object> pRetObj =
pRuntime->NewFxDynamicObj(CJS_PrintParamsObj::g_nObjDefnID);
+ if (pRetObj.IsEmpty())
+ return false;
// Not implemented yet.
diff --git a/fpdfsdk/javascript/Field.cpp b/fpdfsdk/javascript/Field.cpp
index 92b473b231..f37b3d486b 100644
--- a/fpdfsdk/javascript/Field.cpp
+++ b/fpdfsdk/javascript/Field.cpp
@@ -2835,7 +2835,8 @@ bool Field::buttonGetIcon(CJS_Runtime* pRuntime,
v8::Local<v8::Object> pObj =
pRuntime->NewFxDynamicObj(CJS_Icon::g_nObjDefnID);
- ASSERT(pObj.IsEmpty() == false);
+ if (pObj.IsEmpty())
+ return false;
CJS_Icon* pJS_Icon = static_cast<CJS_Icon*>(pRuntime->GetObjectPrivate(pObj));
vRet = CJS_Value(pRuntime, pJS_Icon);
@@ -2966,7 +2967,8 @@ bool Field::getArray(CJS_Runtime* pRuntime,
for (const auto& pStr : swSort) {
v8::Local<v8::Object> pObj =
pRuntime->NewFxDynamicObj(CJS_Field::g_nObjDefnID);
- ASSERT(!pObj.IsEmpty());
+ if (pObj.IsEmpty())
+ return false;
CJS_Field* pJSField =
static_cast<CJS_Field*>(pRuntime->GetObjectPrivate(pObj));
diff --git a/fpdfsdk/javascript/JS_Define.h b/fpdfsdk/javascript/JS_Define.h
index ee7448c649..375ca3ac35 100644
--- a/fpdfsdk/javascript/JS_Define.h
+++ b/fpdfsdk/javascript/JS_Define.h
@@ -45,6 +45,8 @@ void JSPropGetter(const char* prop_name_string,
return;
CJS_Object* pJSObj =
static_cast<CJS_Object*>(pRuntime->GetObjectPrivate(info.Holder()));
+ if (!pJSObj)
+ return;
C* pObj = reinterpret_cast<C*>(pJSObj->GetEmbedObject());
CFX_WideString sError;
CJS_PropValue value(pRuntime);
@@ -69,6 +71,8 @@ void JSPropSetter(const char* prop_name_string,
return;
CJS_Object* pJSObj =
static_cast<CJS_Object*>(pRuntime->GetObjectPrivate(info.Holder()));
+ if (!pJSObj)
+ return;
C* pObj = reinterpret_cast<C*>(pJSObj->GetEmbedObject());
CFX_WideString sError;
CJS_PropValue propValue(pRuntime, CJS_Value(pRuntime, value));
@@ -111,6 +115,8 @@ void JSMethod(const char* method_name_string,
}
CJS_Object* pJSObj =
static_cast<CJS_Object*>(pRuntime->GetObjectPrivate(info.Holder()));
+ if (!pJSObj)
+ return;
C* pObj = reinterpret_cast<C*>(pJSObj->GetEmbedObject());
CFX_WideString sError;
CJS_Value valueRes(pRuntime);
@@ -210,33 +216,31 @@ void JSMethod(const char* method_name_string,
static JSPropertySpec PropertySpecs[]; \
static JSMethodSpec MethodSpecs[];
-#define IMPLEMENT_JS_CLASS_RICH_PART(js_class_name, class_alternate, \
- class_name) \
- void js_class_name::JSConstructor(CFXJS_Engine* pEngine, \
- v8::Local<v8::Object> obj) { \
- CJS_Object* pObj = new js_class_name(obj); \
- pObj->SetEmbedObject(new class_alternate(pObj)); \
- pEngine->SetObjectPrivate(obj, (void*)pObj); \
- pObj->InitInstance(static_cast<CJS_Runtime*>(pEngine)); \
- } \
- void js_class_name::JSDestructor(CFXJS_Engine* pEngine, \
- v8::Local<v8::Object> obj) { \
- js_class_name* pObj = \
- static_cast<js_class_name*>(pEngine->GetObjectPrivate(obj)); \
- delete pObj; \
- } \
- void js_class_name::DefineProps(CFXJS_Engine* pEngine) { \
- for (size_t i = 0; i < FX_ArraySize(PropertySpecs) - 1; ++i) { \
- pEngine->DefineObjProperty(g_nObjDefnID, PropertySpecs[i].pName, \
- PropertySpecs[i].pPropGet, \
- PropertySpecs[i].pPropPut); \
- } \
- } \
- void js_class_name::DefineMethods(CFXJS_Engine* pEngine) { \
- for (size_t i = 0; i < FX_ArraySize(MethodSpecs) - 1; ++i) { \
- pEngine->DefineObjMethod(g_nObjDefnID, MethodSpecs[i].pName, \
- MethodSpecs[i].pMethodCall); \
- } \
+#define IMPLEMENT_JS_CLASS_RICH_PART(js_class_name, class_alternate, \
+ class_name) \
+ void js_class_name::JSConstructor(CFXJS_Engine* pEngine, \
+ v8::Local<v8::Object> obj) { \
+ CJS_Object* pObj = new js_class_name(obj); \
+ pObj->SetEmbedObject(new class_alternate(pObj)); \
+ pEngine->SetObjectPrivate(obj, (void*)pObj); \
+ pObj->InitInstance(static_cast<CJS_Runtime*>(pEngine)); \
+ } \
+ void js_class_name::JSDestructor(CFXJS_Engine* pEngine, \
+ v8::Local<v8::Object> obj) { \
+ delete static_cast<js_class_name*>(pEngine->GetObjectPrivate(obj)); \
+ } \
+ void js_class_name::DefineProps(CFXJS_Engine* pEngine) { \
+ for (size_t i = 0; i < FX_ArraySize(PropertySpecs) - 1; ++i) { \
+ pEngine->DefineObjProperty(g_nObjDefnID, PropertySpecs[i].pName, \
+ PropertySpecs[i].pPropGet, \
+ PropertySpecs[i].pPropPut); \
+ } \
+ } \
+ void js_class_name::DefineMethods(CFXJS_Engine* pEngine) { \
+ for (size_t i = 0; i < FX_ArraySize(MethodSpecs) - 1; ++i) { \
+ pEngine->DefineObjMethod(g_nObjDefnID, MethodSpecs[i].pName, \
+ MethodSpecs[i].pMethodCall); \
+ } \
}
// Special JS classes implement methods, props, and queries, but not consts.
@@ -310,12 +314,18 @@ void JSSpecialPropQuery(const char*,
const v8::PropertyCallbackInfo<v8::Integer>& info) {
CJS_Runtime* pRuntime =
CJS_Runtime::CurrentRuntimeFromIsolate(info.GetIsolate());
- v8::String::Utf8Value utf8_value(property);
- CFX_WideString propname = CFX_WideString::FromUTF8(
- CFX_ByteStringC(*utf8_value, utf8_value.length()));
+ if (!pRuntime)
+ return;
+
CJS_Object* pJSObj =
static_cast<CJS_Object*>(pRuntime->GetObjectPrivate(info.Holder()));
+ if (!pJSObj)
+ return;
+
Alt* pObj = reinterpret_cast<Alt*>(pJSObj->GetEmbedObject());
+ v8::String::Utf8Value utf8_value(property);
+ CFX_WideString propname = CFX_WideString::FromUTF8(
+ CFX_ByteStringC(*utf8_value, utf8_value.length()));
bool bRet = pObj->QueryProperty(propname.c_str());
info.GetReturnValue().Set(bRet ? 4 : 0);
}
@@ -328,8 +338,12 @@ void JSSpecialPropGet(const char* class_name,
CJS_Runtime::CurrentRuntimeFromIsolate(info.GetIsolate());
if (!pRuntime)
return;
+
CJS_Object* pJSObj =
static_cast<CJS_Object*>(pRuntime->GetObjectPrivate(info.Holder()));
+ if (!pJSObj)
+ return;
+
Alt* pObj = reinterpret_cast<Alt*>(pJSObj->GetEmbedObject());
v8::String::Utf8Value utf8_value(property);
CFX_WideString propname = CFX_WideString::FromUTF8(
@@ -353,8 +367,12 @@ void JSSpecialPropPut(const char* class_name,
CJS_Runtime::CurrentRuntimeFromIsolate(info.GetIsolate());
if (!pRuntime)
return;
+
CJS_Object* pJSObj =
static_cast<CJS_Object*>(pRuntime->GetObjectPrivate(info.Holder()));
+ if (!pJSObj)
+ return;
+
Alt* pObj = reinterpret_cast<Alt*>(pJSObj->GetEmbedObject());
v8::String::Utf8Value utf8_value(property);
CFX_WideString propname = CFX_WideString::FromUTF8(
@@ -375,8 +393,12 @@ void JSSpecialPropDel(const char* class_name,
CJS_Runtime::CurrentRuntimeFromIsolate(info.GetIsolate());
if (!pRuntime)
return;
+
CJS_Object* pJSObj =
static_cast<CJS_Object*>(pRuntime->GetObjectPrivate(info.Holder()));
+ if (!pJSObj)
+ return;
+
Alt* pObj = reinterpret_cast<Alt*>(pJSObj->GetEmbedObject());
v8::String::Utf8Value utf8_value(property);
CFX_WideString propname = CFX_WideString::FromUTF8(
diff --git a/fpdfsdk/javascript/JS_EventHandler.cpp b/fpdfsdk/javascript/JS_EventHandler.cpp
index cec7735dc1..bd1c8e29d0 100644
--- a/fpdfsdk/javascript/JS_EventHandler.cpp
+++ b/fpdfsdk/javascript/JS_EventHandler.cpp
@@ -590,22 +590,25 @@ Field* CJS_EventHandler::Source() {
CJS_Runtime* pRuntime = m_pJSEventContext->GetJSRuntime();
v8::Local<v8::Object> pDocObj =
pRuntime->NewFxDynamicObj(CJS_Document::g_nObjDefnID);
- ASSERT(!pDocObj.IsEmpty());
+ if (pDocObj.IsEmpty())
+ return nullptr;
v8::Local<v8::Object> pFieldObj =
pRuntime->NewFxDynamicObj(CJS_Field::g_nObjDefnID);
- ASSERT(!pFieldObj.IsEmpty());
+ if (pFieldObj.IsEmpty())
+ return nullptr;
CJS_Document* pJSDocument =
static_cast<CJS_Document*>(pRuntime->GetObjectPrivate(pDocObj));
- Document* pDocument = (Document*)pJSDocument->GetEmbedObject();
+ CJS_Field* pJSField =
+ static_cast<CJS_Field*>(pRuntime->GetObjectPrivate(pFieldObj));
+
+ Document* pDocument = static_cast<Document*>(pJSDocument->GetEmbedObject());
pDocument->SetFormFillEnv(m_pTargetFormFillEnv
? m_pTargetFormFillEnv.Get()
: m_pJSEventContext->GetFormFillEnv());
- CJS_Field* pJSField =
- static_cast<CJS_Field*>(pRuntime->GetObjectPrivate(pFieldObj));
- Field* pField = (Field*)pJSField->GetEmbedObject();
+ Field* pField = static_cast<Field*>(pJSField->GetEmbedObject());
pField->AttachField(pDocument, m_strSourceName);
return pField;
}
@@ -614,22 +617,25 @@ Field* CJS_EventHandler::Target_Field() {
CJS_Runtime* pRuntime = m_pJSEventContext->GetJSRuntime();
v8::Local<v8::Object> pDocObj =
pRuntime->NewFxDynamicObj(CJS_Document::g_nObjDefnID);
- ASSERT(!pDocObj.IsEmpty());
+ if (pDocObj.IsEmpty())
+ return nullptr;
v8::Local<v8::Object> pFieldObj =
pRuntime->NewFxDynamicObj(CJS_Field::g_nObjDefnID);
- ASSERT(!pFieldObj.IsEmpty());
+ if (pFieldObj.IsEmpty())
+ return nullptr;
CJS_Document* pJSDocument =
static_cast<CJS_Document*>(pRuntime->GetObjectPrivate(pDocObj));
- Document* pDocument = (Document*)pJSDocument->GetEmbedObject();
+ CJS_Field* pJSField =
+ static_cast<CJS_Field*>(pRuntime->GetObjectPrivate(pFieldObj));
+
+ Document* pDocument = static_cast<Document*>(pJSDocument->GetEmbedObject());
pDocument->SetFormFillEnv(m_pTargetFormFillEnv
? m_pTargetFormFillEnv.Get()
: m_pJSEventContext->GetFormFillEnv());
- CJS_Field* pJSField =
- static_cast<CJS_Field*>(pRuntime->GetObjectPrivate(pFieldObj));
- Field* pField = (Field*)pJSField->GetEmbedObject();
+ Field* pField = static_cast<Field*>(pJSField->GetEmbedObject());
pField->AttachField(pDocument, m_strTargetName);
return pField;
}
diff --git a/fpdfsdk/javascript/app.cpp b/fpdfsdk/javascript/app.cpp
index 0c75f6be4a..3a8bf088f3 100644
--- a/fpdfsdk/javascript/app.cpp
+++ b/fpdfsdk/javascript/app.cpp
@@ -215,13 +215,11 @@ bool app::activeDocs(CJS_Runtime* pRuntime,
CJS_Document* pJSDocument = nullptr;
v8::Local<v8::Object> pObj = pRuntime->GetThisObj();
- if (CFXJS_Engine::GetObjDefnID(pObj) == CJS_Document::g_nObjDefnID) {
+ if (CFXJS_Engine::GetObjDefnID(pObj) == CJS_Document::g_nObjDefnID)
pJSDocument = static_cast<CJS_Document*>(pRuntime->GetObjectPrivate(pObj));
- }
CJS_Array aDocs;
aDocs.SetElement(pRuntime, 0, CJS_Value(pRuntime, pJSDocument));
-
if (aDocs.GetLength(pRuntime) > 0)
vp << aDocs;
else
@@ -472,6 +470,9 @@ bool app::setInterval(CJS_Runtime* pRuntime,
v8::Local<v8::Object> pRetObj =
pRuntime->NewFxDynamicObj(CJS_TimerObj::g_nObjDefnID);
+ if (pRetObj.IsEmpty())
+ return false;
+
CJS_TimerObj* pJS_TimerObj =
static_cast<CJS_TimerObj*>(pRuntime->GetObjectPrivate(pRetObj));
TimerObj* pTimerObj = static_cast<TimerObj*>(pJS_TimerObj->GetEmbedObject());
@@ -504,13 +505,13 @@ bool app::setTimeOut(CJS_Runtime* pRuntime,
v8::Local<v8::Object> pRetObj =
pRuntime->NewFxDynamicObj(CJS_TimerObj::g_nObjDefnID);
+ if (pRetObj.IsEmpty())
+ return false;
CJS_TimerObj* pJS_TimerObj =
static_cast<CJS_TimerObj*>(pRuntime->GetObjectPrivate(pRetObj));
-
TimerObj* pTimerObj = static_cast<TimerObj*>(pJS_TimerObj->GetEmbedObject());
pTimerObj->SetTimer(timerRef);
-
vRet = CJS_Value(pRuntime, pRetObj);
return true;
}
diff --git a/fxjs/fxjs_v8.cpp b/fxjs/fxjs_v8.cpp
index 053db07d3b..0c211a130a 100644
--- a/fxjs/fxjs_v8.cpp
+++ b/fxjs/fxjs_v8.cpp
@@ -56,6 +56,12 @@ class CFXJS_ObjDefinition {
v8::Local<v8::FunctionTemplate> fun = v8::FunctionTemplate::New(isolate);
fun->InstanceTemplate()->SetInternalFieldCount(2);
+ fun->SetCallHandler([](const v8::FunctionCallbackInfo<v8::Value>& info) {
+ v8::Local<v8::Object> holder = info.Holder();
+ ASSERT(holder->InternalFieldCount() == 2);
+ holder->SetAlignedPointerInInternalField(0, nullptr);
+ holder->SetAlignedPointerInInternalField(1, nullptr);
+ });
if (eObjType == FXJSOBJTYPE_GLOBAL) {
fun->InstanceTemplate()->Set(
v8::Symbol::GetToStringTag(isolate),
diff --git a/testing/resources/javascript/bug_695826.in b/testing/resources/javascript/bug_695826.in
new file mode 100644
index 0000000000..b20908bc79
--- /dev/null
+++ b/testing/resources/javascript/bug_695826.in
@@ -0,0 +1,47 @@
+{{header}}
+{{object 1 0}} <<
+ /Type /Catalog
+ /Pages 2 0 R
+ /OpenAction 10 0 R
+>>
+endobj
+{{object 2 0}} <<
+ /Type /Pages
+ /Count 1
+ /Kids [
+ 3 0 R
+ ]
+>>
+endobj
+% Page number 0.
+{{object 3 0}} <<
+ /Type /Page
+ /Parent 2 0 R
+ /Resources <<
+ /Font <</F1 15 0 R>>
+ >>
+ /Contents [21 0 R]
+ /MediaBox [0 0 612 792]
+>>
+% OpenAction action
+{{object 10 0}} <<
+ /Type /Action
+ /S /JavaScript
+ /JS 11 0 R
+>>
+endobj
+% JS program to exexute
+{{object 11 0}} <<
+>>
+stream
+var obj = new this.constructor;
+obj.author = 3;
+app.alert('Done!');
+endstream
+endobj
+{{xref}}
+trailer <<
+ /Root 1 0 R
+>>
+{{startxref}}
+%%EOF
diff --git a/testing/resources/javascript/bug_695826_expected.txt b/testing/resources/javascript/bug_695826_expected.txt
new file mode 100644
index 0000000000..5bb6e85966
--- /dev/null
+++ b/testing/resources/javascript/bug_695826_expected.txt
@@ -0,0 +1 @@
+Alert: Done!
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 18:03:37 +0000