void CFDF_Document::ParseStream(IFX_FileRead *pFile, FX_BOOL bOwnFile)
{
m_pFile = pFile;
m_bOwnFile = bOwnFile;
CPDF_SyntaxParser parser;
parser.InitParser(m_pFile, 0);
while (1) {
FX_BOOL bNumber;
CFX_ByteString word = parser.GetNextWord(bNumber);
if (bNumber) {
FX_DWORD objnum = FXSYS_atoi(word);
word = parser.GetNextWord(bNumber);
if (!bNumber) {
break;
}
word = parser.GetNextWord(bNumber);
if (word != FX_BSTRC("obj")) {
break;
}
CPDF_Object* pObj = parser.GetObject(this, objnum, 0, FALSE);
if (pObj == NULL) {
break;
}
InsertIndirectObject(objnum, pObj);
word = parser.GetNextWord(bNumber);
if (word != FX_BSTRC("endobj")) {
break;
}
} else {
if (word != FX_BSTRC("trailer")) {
break;
}
CPDF_Dictionary* pMainDict = (CPDF_Dictionary*)parser.GetObject(this, 0, 0, 0);
if (pMainDict == NULL || pMainDict->GetType() != PDFOBJ_DICTIONARY) {
break;
}
m_pRootDict = pMainDict->GetDict(FX_BSTRC("Root"));
pMainDict->Release();
break;
}
}
}
void CPDF_StreamContentParser::Handle_BeginImage()
{
FX_FILESIZE savePos = m_pSyntax->GetPos();
CPDF_Dictionary* pDict = CPDF_Dictionary::Create();
while (1) {
CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement();
if (type == CPDF_StreamParser::Keyword) {
CFX_ByteString bsKeyword(m_pSyntax->GetWordBuf(), m_pSyntax->GetWordSize());
if (bsKeyword != FX_BSTRC("ID")) {
m_pSyntax->SetPos(savePos);
pDict->Release();
return;
}
}
if (type != CPDF_StreamParser::Name) {
break;
}
CFX_ByteString key((const FX_CHAR*)m_pSyntax->GetWordBuf() + 1, m_pSyntax->GetWordSize() - 1);
CPDF_Object* pObj = m_pSyntax->ReadNextObject();
if (!key.IsEmpty()) {
pDict->SetAt(key, pObj, m_pDocument);
} else if (pObj) {
pObj->Release();
}
}
_PDF_ReplaceAbbr(pDict);
CPDF_Object* pCSObj = NULL;
if (pDict->KeyExist(FX_BSTRC("ColorSpace"))) {
pCSObj = pDict->GetElementValue(FX_BSTRC("ColorSpace"));
if (pCSObj->GetType() == PDFOBJ_NAME) {
CFX_ByteString name = pCSObj->GetString();
if (name != FX_BSTRC("DeviceRGB") && name != FX_BSTRC("DeviceGray") && name != FX_BSTRC("DeviceCMYK")) {
pCSObj = FindResourceObj(FX_BSTRC("ColorSpace"), name);
if (pCSObj && !pCSObj->GetObjNum()) {
pCSObj = pCSObj->Clone();
pDict->SetAt(FX_BSTRC("ColorSpace"), pCSObj, m_pDocument);
}
}
}
}
CPDF_Stream* pStream = m_pSyntax->ReadInlineStream(m_pDocument, pDict, pCSObj, m_Options.m_bDecodeInlineImage);
while (1) {
CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement();
if (type == CPDF_StreamParser::EndOfData) {
break;
}
if (type != CPDF_StreamParser::Keyword) {
continue;
}
if (m_pSyntax->GetWordSize() == 2 && m_pSyntax->GetWordBuf()[0] == 'E' &&
m_pSyntax->GetWordBuf()[1] == 'I') {
break;
}
}
if (m_Options.m_bTextOnly) {
if (pStream) {
pStream->Release();
} else {
pDict->Release();
}
return;
}
pDict->SetAtName(FX_BSTRC("Subtype"), FX_BSTRC("Image"));
CPDF_ImageObject *pImgObj = AddImage(pStream, NULL, TRUE);
if (!pImgObj) {
if (pStream) {
pStream->Release();
} else {
pDict->Release();
}
}
}
CPDF_Object* CPDF_StreamParser::ReadNextObject(FX_BOOL bAllowNestedArray, FX_BOOL bInArray)
{
FX_BOOL bIsNumber;
GetNextWord(bIsNumber);
if (m_WordSize == 0) {
return NULL;
}
if (bIsNumber) {
m_WordBuffer[m_WordSize] = 0;
return CPDF_Number::Create(CFX_ByteStringC(m_WordBuffer, m_WordSize));
}
int first_char = m_WordBuffer[0];
if (first_char == '/') {
return CPDF_Name::Create(PDF_NameDecode(CFX_ByteStringC(m_WordBuffer + 1, m_WordSize - 1)));
}
if (first_char == '(') {
return CPDF_String::Create(ReadString());
}
if (first_char == '<') {
if (m_WordSize == 1) {
return CPDF_String::Create(ReadHexString(), TRUE);
}
CPDF_Dictionary* pDict = CPDF_Dictionary::Create();
while (1) {
GetNextWord(bIsNumber);
if (m_WordSize == 0) {
pDict->Release();
return NULL;
}
if (m_WordSize == 2 && m_WordBuffer[0] == '>') {
break;
}
if (m_WordBuffer[0] != '/') {
pDict->Release();
return NULL;
}
CFX_ByteString key = PDF_NameDecode(CFX_ByteStringC(m_WordBuffer + 1, m_WordSize - 1));
CPDF_Object* pObj = ReadNextObject(TRUE);
if (pObj == NULL) {
if (pDict) {
pDict->Release();
}
return NULL;
}
if (!key.IsEmpty()) {
pDict->SetAt(key, pObj);
} else {
pObj->Release();
}
}
return pDict;
}
if (first_char == '[') {
if (!bAllowNestedArray && bInArray) {
return NULL;
}
CPDF_Array* pArray = CPDF_Array::Create();
while (1) {
CPDF_Object* pObj = ReadNextObject(bAllowNestedArray, TRUE);
if (pObj == NULL) {
if (m_WordSize == 0 || m_WordBuffer[0] == ']') {
return pArray;
}
if (m_WordBuffer[0] == '[') {
continue;
}
} else {
pArray->Add(pObj);
}
}
}
if (m_WordSize == 4) {
if (*(FX_DWORD*)m_WordBuffer == FXDWORD_TRUE) {
return CPDF_Boolean::Create(TRUE);
}
if (*(FX_DWORD*)m_WordBuffer == FXDWORD_NULL) {
return CPDF_Null::Create();
}
} else if (m_WordSize == 5) {
if (*(FX_DWORD*)m_WordBuffer == FXDWORD_FALS && m_WordBuffer[4] == 'e') {
return CPDF_Boolean::Create(FALSE);
}
}
return NULL;
}
CFDF_Document* CPDF_InterForm::ExportToFDF(
const CFX_WideStringC& pdf_path,
const std::vector<CPDF_FormField*>& fields,
bool bIncludeOrExclude,
bool bSimpleFileSpec) const {
CFDF_Document* pDoc = CFDF_Document::CreateNewDoc();
if (pDoc == NULL) {
return NULL;
}
CPDF_Dictionary* pMainDict = pDoc->GetRoot()->GetDict("FDF");
if (!pdf_path.IsEmpty()) {
if (bSimpleFileSpec) {
CFX_WideString wsFilePath = FILESPEC_EncodeFileName(pdf_path);
pMainDict->SetAtString(FX_BSTRC("F"),
CFX_ByteString::FromUnicode(wsFilePath));
pMainDict->SetAtString(FX_BSTRC("UF"), PDF_EncodeText(wsFilePath));
} else {
CPDF_FileSpec filespec;
filespec.SetFileName(pdf_path);
pMainDict->SetAt("F", static_cast<CPDF_Object*>(filespec));
}
}
CPDF_Array* pFields = CPDF_Array::Create();
if (pFields == NULL) {
return NULL;
}
pMainDict->SetAt("Fields", pFields);
int nCount = m_pFieldTree->m_Root.CountFields();
for (int i = 0; i < nCount; i++) {
CPDF_FormField* pField = m_pFieldTree->m_Root.GetField(i);
if (pField == NULL || pField->GetType() == CPDF_FormField::PushButton) {
continue;
}
FX_DWORD dwFlags = pField->GetFieldFlags();
if (dwFlags & 0x04)
continue;
auto it = std::find(fields.begin(), fields.end(), pField);
if (bIncludeOrExclude == (it != fields.end())) {
if ((dwFlags & 0x02) != 0 && pField->m_pDict->GetString("V").IsEmpty())
continue;
CFX_WideString fullname = GetFullName(pField->GetFieldDict());
CPDF_Dictionary* pFieldDict = CPDF_Dictionary::Create();
if (!pFieldDict)
return nullptr;
CPDF_String* pString = CPDF_String::Create(fullname);
if (!pString) {
pFieldDict->Release();
return nullptr;
}
pFieldDict->SetAt("T", pString);
if (pField->GetType() == CPDF_FormField::CheckBox ||
pField->GetType() == CPDF_FormField::RadioButton) {
CFX_WideString csExport = pField->GetCheckValue(FALSE);
CFX_ByteString csBExport = PDF_EncodeText(csExport);
CPDF_Object* pOpt = FPDF_GetFieldAttr(pField->m_pDict, "Opt");
if (pOpt)
pFieldDict->SetAtString("V", csBExport);
else
pFieldDict->SetAtName("V", csBExport);
} else {
CPDF_Object* pV = FPDF_GetFieldAttr(pField->m_pDict, "V");
if (pV)
pFieldDict->SetAt("V", pV->Clone(TRUE));
}
pFields->Add(pFieldDict);
}
}
return pDoc;
}