QPDFFileSpecObjectHelper.cc
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#include <qpdf/QPDFFileSpecObjectHelper.hh>
#include <qpdf/QPDF.hh>
#include <qpdf/QPDFObjectHandle_private.hh>
#include <qpdf/QTC.hh>
#include <qpdf/QUtil.hh>
#include <array>
#include <string>
using namespace std::literals;
using namespace qpdf;
class QPDFFileSpecObjectHelper::Members
{
};
QPDFFileSpecObjectHelper::QPDFFileSpecObjectHelper(QPDFObjectHandle oh) :
QPDFObjectHelper(oh)
{
if (!oh.isDictionary()) {
warn("Embedded file object is not a dictionary");
return;
}
if (!oh.isDictionaryOfType("/Filespec")) {
warn("Embedded file object's type is not /Filespec");
}
}
static const std::array<std::string, 5> name_keys = {"/UF"s, "/F"s, "/Unix"s, "/DOS"s, "/Mac"s};
std::string
QPDFFileSpecObjectHelper::getDescription()
{
if (String Desc = oh().getKey("/Desc")) {
return Desc.utf8_value();
}
return {};
}
std::string
QPDFFileSpecObjectHelper::getFilename()
{
for (auto const& i: name_keys) {
if (String k = get(i)) {
return k.utf8_value();
}
}
return {};
}
std::map<std::string, std::string>
QPDFFileSpecObjectHelper::getFilenames()
{
std::map<std::string, std::string> result;
for (auto const& i: name_keys) {
if (String k = get(i)) {
result[i] = k.utf8_value();
}
}
return result;
}
QPDFObjectHandle
QPDFFileSpecObjectHelper::getEmbeddedFileStream(std::string const& key)
{
if (Dictionary EF = get("/EF")) {
if (!key.empty() && EF.contains(key)) {
if (auto result = EF[key]) {
return result;
}
}
for (auto const& i: name_keys) {
if (Stream k = EF[i]) {
return k;
}
}
}
return Null::temp();
}
QPDFObjectHandle
QPDFFileSpecObjectHelper::getEmbeddedFileStreams()
{
return oh().getKey("/EF");
}
QPDFFileSpecObjectHelper
QPDFFileSpecObjectHelper::createFileSpec(
QPDF& qpdf, std::string const& filename, std::string const& fullpath)
{
return createFileSpec(
qpdf,
filename,
QPDFEFStreamObjectHelper::createEFStream(qpdf, QUtil::file_provider(fullpath)));
}
QPDFFileSpecObjectHelper
QPDFFileSpecObjectHelper::createFileSpec(
QPDF& qpdf, std::string const& filename, QPDFEFStreamObjectHelper efsoh)
{
auto UF = String::utf16(filename);
return {qpdf.makeIndirectObject(Dictionary(
{{"/Type", Name("/Filespec")},
{"/F", UF},
{"/UF", UF},
{"/EF", Dictionary({{"/F", efsoh}, {"/UF", efsoh}})}}))};
}
QPDFFileSpecObjectHelper&
QPDFFileSpecObjectHelper::setDescription(std::string const& desc)
{
oh().replaceKey("/Desc", String::utf16(desc));
return *this;
}
QPDFFileSpecObjectHelper&
QPDFFileSpecObjectHelper::setFilename(
std::string const& unicode_name, std::string const& compat_name)
{
auto uf = String::utf16(unicode_name);
oh().replaceKey("/UF", uf);
if (compat_name.empty()) {
oh().replaceKey("/F", uf);
} else {
oh().replaceKey("/F", String(compat_name));
}
return *this;
}