security/pdfsign
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added examples

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This commit is contained in:
Marc Wäckerlin
2015-11-20 15:14:27 +00:00
parent 74847cd624
commit 9622b07eb9
3 changed files with 42 additions and 0 deletions
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42
src/pdfsign.hxx
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@@ -33,6 +33,7 @@ class PdfSign: public QMainWindow, protected Ui::Pdfsign {
if (fileName.isEmpty()) return; if (fileName.isEmpty()) return;
_pdf = std::shared_ptr<Poppler::Document>(Poppler::Document::load(fileName)); _pdf = std::shared_ptr<Poppler::Document>(Poppler::Document::load(fileName));
showPage(); showPage();
} }
public: public:
void showPage(int pageNumber=0) { void showPage(int pageNumber=0) {
@@ -42,6 +43,47 @@ class PdfSign: public QMainWindow, protected Ui::Pdfsign {
_pdfDisplay->setPixmap(QPixmap::fromImage(pdfPage->renderToImage())); _pdfDisplay->setPixmap(QPixmap::fromImage(pdfPage->renderToImage()));
return; return;
} }
void sign(QString filename) {
PdfSigIncMemDocument doc(filename.c_str());
char *buffer = NULL;
buffer = (char *)malloc(809600);
PdfOutputDevice output(buffer, 809600);
PdfSignOutputDevice signOutput(&output);
signOutput.SetSignatureSize(2048);
printf( "Page count:%d\n", doc.GetPageCount());
PdfSigIncSignatureField *sign = doc.GetSignatureField();
sign->SetSignatureDate(PdfDate());
sign->SetSignatureReason(L"I dont agree");
//sign->SetSignatureImage("e:\\sign.jpg", 0, 100, 200, 100, 100);
sign->SetSignatureText(L"Hello World", 0, 100, 200, 100, 100, 12);
doc.Initialize();
doc.CreateVisualSign();
doc.Write(&signOutput);
printf( "Has Signature:%d\n", signOutput.HasSignaturePosition());
/*
char buff[809600] = {0};
size_t len;
BYTE *Signature = NULL;
DWORD cbSignature = 0;
signOutput.AdjustByteRange();
signOutput.Seek(0);
len = signOutput.ReadForSignature(buff, 809600);
printf("total tbs size: %d\n", len);
SignMessage( (BYTE *)buff, len, &Signature, &cbSignature);//Digital signing using MSCAPI
printf("signature size: %d\n", cbSignature);
const PoDoFo::PdfData *sig = new PoDoFo::PdfData((char *)Signature, cbSignature);
signOutput.SetSignature(*sig);
*/
signOutput.Flush();
FILE *fp = NULL;
fp = fopen("/tmp/signed.pdf", "wb" );
fwrite( buffer, signOutput.GetLength(), 1, fp );
fclose(fp);
free(buffer);
}
private: private:
std::shared_ptr<Poppler::Document> _pdf; std::shared_ptr<Poppler::Document> _pdf;
}; };