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In QPDF::damagedPDF change input parameter to InputSource&

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This commit is contained in:
m-holger 2024-08-21 11:14:39 +01:00
parent 7f3b05ddb4
commit 20edfb3f91
2 changed files with 16 additions and 23 deletions
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7
include/qpdf/QPDF.hh
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@ -1088,14 +1088,11 @@ class QPDF
qpdf_offset_t end_before_space,
qpdf_offset_t end_after_space);
static QPDFExc damagedPDF(
std::shared_ptr<InputSource> const& input,
InputSource& input,
std::string const& object,
qpdf_offset_t offset,
std::string const& message);
QPDFExc damagedPDF(
std::shared_ptr<InputSource> const& input,
qpdf_offset_t offset,
std::string const& message);
QPDFExc damagedPDF(InputSource& input, qpdf_offset_t offset, std::string const& message);
QPDFExc damagedPDF(std::string const& object, qpdf_offset_t offset, std::string const& message);
QPDFExc damagedPDF(std::string const& object, std::string const& message);
QPDFExc damagedPDF(qpdf_offset_t offset, std::string const& message);

32
libqpdf/QPDF.cc
View File

@ -1493,7 +1493,7 @@ QPDF::readObject(std::string const& description, QPDFObjGen og)
if (empty) {
// Nothing in the PDF spec appears to allow empty objects, but they have been encountered in
// actual PDF files and Adobe Reader appears to ignore them.
warn(damagedPDF(m->file, m->file->getLastOffset(), "empty object treated as null"));
warn(damagedPDF(*m->file, m->file->getLastOffset(), "empty object treated as null"));
return object;
}
auto token = readToken(m->file);
@ -1613,7 +1613,7 @@ QPDF::readObjectInStream(std::shared_ptr<InputSource>& input, int obj)
if (empty) {
// Nothing in the PDF spec appears to allow empty objects, but they have been encountered in
// actual PDF files and Adobe Reader appears to ignore them.
warn(damagedPDF(input, input->getLastOffset(), "empty object treated as null"));
warn(damagedPDF(*input, input->getLastOffset(), "empty object treated as null"));
}
return object;
}
@ -1635,7 +1635,7 @@ QPDF::recoverStreamLength(
std::shared_ptr<InputSource> input, QPDFObjGen const& og, qpdf_offset_t stream_offset)
{
// Try to reconstruct stream length by looking for endstream or endobj
warn(damagedPDF(input, stream_offset, "attempting to recover stream length"));
warn(damagedPDF(*input, stream_offset, "attempting to recover stream length"));
PatternFinder ef(*this, &QPDF::findEndstream);
size_t length = 0;
@ -1674,10 +1674,10 @@ QPDF::recoverStreamLength(
if (length == 0) {
warn(damagedPDF(
input, stream_offset, "unable to recover stream data; treating stream as empty"));
*input, stream_offset, "unable to recover stream data; treating stream as empty"));
} else {
warn(
damagedPDF(input, stream_offset, "recovered stream length: " + std::to_string(length)));
warn(damagedPDF(
*input, stream_offset, "recovered stream length: " + std::to_string(length)));
}
QTC::TC("qpdf", "QPDF recovered stream length");
@ -1958,7 +1958,7 @@ QPDF::resolveObjectsInStream(int obj_stream_number)
QPDFTokenizer::Token toffset = readToken(input);
if (!(tnum.isInteger() && toffset.isInteger())) {
throw damagedPDF(
input,
*input,
m->last_object_description,
input->getLastOffset(),
"expected integer in object stream header");
@ -1972,7 +1972,7 @@ QPDF::resolveObjectsInStream(int obj_stream_number)
if (num == obj_stream_number) {
QTC::TC("qpdf", "QPDF ignore self-referential object stream");
warn(damagedPDF(
input,
*input,
m->last_object_description,
input->getLastOffset(),
"object stream claims to contain itself"));
@ -2726,7 +2726,7 @@ QPDF::pipeStreamData(
file->seek(offset, SEEK_SET);
auto buf = std::make_unique<char[]>(length);
if (auto read = file->read(buf.get(), length); read != length) {
throw damagedPDF(file, "", offset + toO(read), "unexpected EOF reading stream data");
throw damagedPDF(*file, "", offset + toO(read), "unexpected EOF reading stream data");
}
pipeline->write(buf.get(), length);
attempted_finish = true;
@ -2742,7 +2742,7 @@ QPDF::pipeStreamData(
qpdf_for_warning.warn(
// line-break
damagedPDF(
file,
*file,
"",
file->getLastOffset(),
("error decoding stream data for object " + og.unparse(' ') + ": " +
@ -2751,7 +2751,7 @@ QPDF::pipeStreamData(
qpdf_for_warning.warn(
// line-break
damagedPDF(
file,
*file,
"",
file->getLastOffset(),
"stream will be re-processed without filtering to avoid data loss"));
@ -2825,19 +2825,15 @@ QPDF::stopOnError(std::string const& message)
// Return an exception of type qpdf_e_damaged_pdf.
QPDFExc
QPDF::damagedPDF(
std::shared_ptr<InputSource> const& input,
std::string const& object,
qpdf_offset_t offset,
std::string const& message)
InputSource& input, std::string const& object, qpdf_offset_t offset, std::string const& message)
{
return {qpdf_e_damaged_pdf, input->getName(), object, offset, message};
return {qpdf_e_damaged_pdf, input.getName(), object, offset, message};
}
// Return an exception of type qpdf_e_damaged_pdf. The object is taken from
// m->last_object_description.
QPDFExc
QPDF::damagedPDF(
std::shared_ptr<InputSource> const& input, qpdf_offset_t offset, std::string const& message)
QPDF::damagedPDF(InputSource& input, qpdf_offset_t offset, std::string const& message)
{
return damagedPDF(input, m->last_object_description, offset, message);
}