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Use inline image token in content parser

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This commit is contained in:
Jay Berkenbilt 2018-01-29 21:34:24 -05:00
parent ba453ba4ff
commit 55ee55394c
1 changed files with 19 additions and 30 deletions
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49
libqpdf/QPDFObjectHandle.cc
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@ -907,42 +907,31 @@ QPDFObjectHandle::parseContentStream_internal(PointerHolder<Buffer> stream_data,
// terminated the token. Read until end of inline image.
char ch;
input->read(&ch, 1);
char buf[4];
memset(buf, '\0', sizeof(buf));
bool done = false;
std::string inline_image;
while (! done)
tokenizer.expectInlineImage();
QPDFTokenizer::Token t = tokenizer.readToken(input, description, true);
if (t.getType() == QPDFTokenizer::tt_bad)
{
if (input->read(&ch, 1) == 0)
QTC::TC("qpdf", "QPDFObjectHandle EOF in inline image");
throw QPDFExc(qpdf_e_damaged_pdf, input->getName(),
"stream data", input->tell(),
"EOF found while reading inline image");
}
else
{
// Skip back over EI
input->seek(-3, SEEK_CUR);
std::string inline_image = t.getRawValue();
for (int i = 0; i < 4; ++i)
{
QTC::TC("qpdf", "QPDFObjectHandle EOF in inline image");
throw QPDFExc(qpdf_e_damaged_pdf, input->getName(),
"stream data", input->tell(),
"EOF found while reading inline image");
}
inline_image += ch;
memmove(buf, buf + 1, sizeof(buf) - 1);
buf[sizeof(buf) - 1] = ch;
if (strchr(" \t\n\v\f\r", buf[0]) &&
(buf[1] == 'E') &&
(buf[2] == 'I') &&
strchr(" \t\n\v\f\r", buf[3]))
{
// We've found an EI operator.
done = true;
input->seek(-3, SEEK_CUR);
for (int i = 0; i < 4; ++i)
if (inline_image.length() > 0)
{
if (inline_image.length() > 0)
{
inline_image.erase(inline_image.length() - 1);
}
inline_image.erase(inline_image.length() - 1);
}
}
QTC::TC("qpdf", "QPDFObjectHandle inline image token");
callbacks->handleObject(
QPDFObjectHandle::newInlineImage(inline_image));
}
QTC::TC("qpdf", "QPDFObjectHandle inline image token");
callbacks->handleObject(
QPDFObjectHandle::newInlineImage(inline_image));
}
}
}