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Code Issues Releases Wiki Activity

Only update output version from files used as input

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If we're opening a PDF file to copy its encryption information or
attachments, its version doesn't need to influence the output version.
This commit is contained in:
Jay Berkenbilt 2022-02-08 13:38:03 -05:00
parent 043c44556a
commit d501e1c0d4
3 changed files with 26 additions and 18 deletions
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10
include/qpdf/QPDFJob.hh
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@ -444,15 +444,17 @@ class QPDFJob
// Basic file processing
std::shared_ptr<QPDF> processFile(
char const* filename, char const* password);
char const* filename, char const* password,
bool used_for_input);
std::shared_ptr<QPDF> processInputSource(
PointerHolder<InputSource> is, char const* password);
PointerHolder<InputSource> is, char const* password,
bool used_for_input);
std::shared_ptr<QPDF> doProcess(
std::function<void(QPDF*, char const*)> fn,
char const* password, bool empty);
char const* password, bool empty, bool used_for_input);
std::shared_ptr<QPDF> doProcessOnce(
std::function<void(QPDF*, char const*)> fn,
char const* password, bool empty);
char const* password, bool empty, bool used_for_input);
// Transformations
void setQPDFOptions(QPDF& pdf);

34
libqpdf/QPDFJob.cc
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@ -574,7 +574,7 @@ QPDFJob::run()
std::shared_ptr<QPDF> pdf_ph;
try
{
pdf_ph = processFile(m->infilename.get(), m->password.get());
pdf_ph = processFile(m->infilename.get(), m->password.get(), true);
}
catch (QPDFExc& e)
{
@ -2035,7 +2035,7 @@ QPDFJob::doInspection(QPDF& pdf)
std::shared_ptr<QPDF>
QPDFJob::doProcessOnce(
std::function<void(QPDF*, char const*)> fn,
char const* password, bool empty)
char const* password, bool empty, bool used_for_input)
{
auto pdf = std::make_shared<QPDF>();
setQPDFOptions(*pdf);
@ -2047,14 +2047,18 @@ QPDFJob::doProcessOnce(
{
fn(pdf.get(), password);
}
this->m->max_input_version.updateIfGreater(pdf->getVersionAsPDFVersion());
if (used_for_input)
{
this->m->max_input_version.updateIfGreater(
pdf->getVersionAsPDFVersion());
}
return pdf;
}
std::shared_ptr<QPDF>
QPDFJob::doProcess(
std::function<void(QPDF*, char const*)> fn,
char const* password, bool empty)
char const* password, bool empty, bool used_for_input)
{
// If a password has been specified but doesn't work, try other
// passwords that are equivalent in different character encodings.
@ -2083,7 +2087,7 @@ QPDFJob::doProcess(
{
// There is no password, or we're not doing recovery, so just
// do the normal processing with the supplied password.
return doProcessOnce(fn, password, empty);
return doProcessOnce(fn, password, empty, used_for_input);
}
// Get a list of otherwise encoded strings. Keep in scope for this
@ -2117,7 +2121,7 @@ QPDFJob::doProcess(
{
try
{
return doProcessOnce(fn, *iter, empty);
return doProcessOnce(fn, *iter, empty, used_for_input);
}
catch (QPDFExc& e)
{
@ -2144,22 +2148,23 @@ QPDFJob::doProcess(
}
std::shared_ptr<QPDF>
QPDFJob::processFile(char const* filename, char const* password)
QPDFJob::processFile(char const* filename, char const* password,
bool used_for_input)
{
auto f1 = std::mem_fn<void(char const*, char const*)>(&QPDF::processFile);
auto fn = std::bind(
f1, std::placeholders::_1, filename, std::placeholders::_2);
return doProcess(fn, password, strcmp(filename, "") == 0);
return doProcess(fn, password, strcmp(filename, "") == 0, used_for_input);
}
std::shared_ptr<QPDF>
QPDFJob::processInputSource(
PointerHolder<InputSource> is, char const* password)
PointerHolder<InputSource> is, char const* password, bool used_for_input)
{
auto f1 = std::mem_fn(&QPDF::processInputSource);
auto fn = std::bind(
f1, std::placeholders::_1, is, std::placeholders::_2);
return doProcess(fn, password, false);
return doProcess(fn, password, false, used_for_input);
}
void
@ -2171,7 +2176,7 @@ QPDFJob::validateUnderOverlay(QPDF& pdf, UnderOverlay* uo)
}
QPDFPageDocumentHelper main_pdh(pdf);
int main_npages = QIntC::to_int(main_pdh.getAllPages().size());
uo->pdf = processFile(uo->filename.c_str(), uo->password.get());
uo->pdf = processFile(uo->filename.c_str(), uo->password.get(), true);
QPDFPageDocumentHelper uo_pdh(*(uo->pdf));
int uo_npages = QIntC::to_int(uo_pdh.getAllPages().size());
try
@ -2455,7 +2460,7 @@ QPDFJob::copyAttachments(QPDF& pdf)
<< to_copy.path << std::endl;
});
auto other = processFile(
to_copy.path.c_str(), to_copy.password.c_str());
to_copy.path.c_str(), to_copy.password.c_str(), false);
QPDFEmbeddedFileDocumentHelper other_efdh(*other);
auto other_attachments = other_efdh.getEmbeddedFiles();
for (auto const& iter: other_attachments)
@ -2865,7 +2870,8 @@ QPDFJob::handlePageSpecs(
is = PointerHolder<InputSource>(fis);
fis->setFilename(page_spec.filename.c_str());
}
std::shared_ptr<QPDF> qpdf_ph = processInputSource(is, password);
std::shared_ptr<QPDF> qpdf_ph = processInputSource(
is, password, true);
page_heap.push_back(qpdf_ph);
page_spec_qpdfs[page_spec.filename] = qpdf_ph.get();
if (cis)
@ -3454,7 +3460,7 @@ QPDFJob::setWriterOptions(QPDF& pdf, QPDFWriter& w)
{
std::shared_ptr<QPDF> encryption_pdf =
processFile(m->encryption_file.c_str(),
m->encryption_file_password.get());
m->encryption_file_password.get(), false);
w.copyEncryptionParameters(*encryption_pdf);
}
if (m->encrypt)

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qpdf/qtest/qpdf/job-json-copy-attachments.pdf
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