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3dbab589e3
qpdf/libqpdf/qpdf-c.cc
Jay Berkenbilt 3dbab589e3 Add C API functions for using custom loggers 
Expose functions to the C API to create new loggers and to setLogger
and getLogger for QPDF and QPDFJob.
2022-09-09 10:49:25 -04:00

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#include <qpdf/qpdf-c.h>
#include <qpdf/QPDF.hh>
#include <qpdf/BufferInputSource.hh>
#include <qpdf/Pl_Buffer.hh>
#include <qpdf/Pl_Discard.hh>
#include <qpdf/Pl_Function.hh>
#include <qpdf/QIntC.hh>
#include <qpdf/QPDFExc.hh>
#include <qpdf/QPDFLogger.hh>
#include <qpdf/QPDFWriter.hh>
#include <qpdf/QTC.hh>
#include <qpdf/QUtil.hh>
#include <qpdf/qpdflogger-c_impl.hh>
#include <cstring>
#include <functional>
#include <list>
#include <stdexcept>
#include <string>
struct _qpdf_error
{
std::shared_ptr<QPDFExc> exc;
};
struct _qpdf_data
{
_qpdf_data();
~_qpdf_data() = default;
std::shared_ptr<QPDF> qpdf;
std::shared_ptr<QPDFWriter> qpdf_writer;
std::shared_ptr<QPDFExc> error;
_qpdf_error tmp_error;
std::list<QPDFExc> warnings;
std::string tmp_string;
// Parameters for functions we call
char const* filename; // or description
char const* buffer;
unsigned long long size;
char const* password;
bool write_memory;
std::shared_ptr<Buffer> output_buffer;
// QPDFObjectHandle support
bool silence_errors;
bool oh_error_occurred;
std::map<qpdf_oh, std::shared_ptr<QPDFObjectHandle>> oh_cache;
qpdf_oh next_oh;
std::set<std::string> cur_iter_dict_keys;
std::set<std::string>::const_iterator dict_iter;
std::string cur_dict_key;
};
_qpdf_data::_qpdf_data() :
write_memory(false),
silence_errors(false),
oh_error_occurred(false),
next_oh(0)
{
}
// must set qpdf->filename and qpdf->password
static void
call_read(qpdf_data qpdf)
{
qpdf->qpdf->processFile(qpdf->filename, qpdf->password);
}
// must set qpdf->filename, qpdf->buffer, qpdf->size, and qpdf->password
static void
call_read_memory(qpdf_data qpdf)
{
qpdf->qpdf->processMemoryFile(
qpdf->filename,
qpdf->buffer,
QIntC::to_size(qpdf->size),
qpdf->password);
}
// must set qpdf->filename
static void
call_init_write(qpdf_data qpdf)
{
qpdf->qpdf_writer =
std::make_shared<QPDFWriter>(*(qpdf->qpdf), qpdf->filename);
}
static void
call_init_write_memory(qpdf_data qpdf)
{
qpdf->qpdf_writer = std::make_shared<QPDFWriter>(*(qpdf->qpdf));
qpdf->qpdf_writer->setOutputMemory();
}
static void
call_write(qpdf_data qpdf)
{
qpdf->qpdf_writer->write();
}
static void
call_check(qpdf_data qpdf)
{
QPDFWriter w(*qpdf->qpdf);
Pl_Discard discard;
w.setOutputPipeline(&discard);
w.setDecodeLevel(qpdf_dl_all);
w.write();
}
static QPDF_ERROR_CODE
trap_errors(qpdf_data qpdf, std::function<void(qpdf_data)> fn)
{
QPDF_ERROR_CODE status = QPDF_SUCCESS;
try {
fn(qpdf);
} catch (QPDFExc& e) {
qpdf->error = std::make_shared<QPDFExc>(e);
status |= QPDF_ERRORS;
} catch (std::runtime_error& e) {
qpdf->error =
std::make_shared<QPDFExc>(qpdf_e_system, "", "", 0, e.what());
status |= QPDF_ERRORS;
} catch (std::exception& e) {
qpdf->error =
std::make_shared<QPDFExc>(qpdf_e_internal, "", "", 0, e.what());
status |= QPDF_ERRORS;
}
if (qpdf_more_warnings(qpdf)) {
status |= QPDF_WARNINGS;
}
return status;
}
char const*
qpdf_get_qpdf_version()
{
QTC::TC("qpdf", "qpdf-c called qpdf_get_qpdf_version");
// The API guarantees that this is a static value.
return QPDF::QPDFVersion().c_str();
}
qpdf_data
qpdf_init()
{
QTC::TC("qpdf", "qpdf-c called qpdf_init");
qpdf_data qpdf = new _qpdf_data();
qpdf->qpdf = QPDF::create();
return qpdf;
}
void
qpdf_cleanup(qpdf_data* qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_cleanup");
qpdf_oh_release_all(*qpdf);
if ((*qpdf)->error.get()) {
QTC::TC("qpdf", "qpdf-c cleanup warned about unhandled error");
*QPDFLogger::defaultLogger()->getWarn()
<< "WARNING: application did not handle error: "
<< (*qpdf)->error->what() << "\n";
}
delete *qpdf;
*qpdf = nullptr;
}
size_t
qpdf_get_last_string_length(qpdf_data qpdf)
{
return qpdf->tmp_string.length();
}
QPDF_BOOL
qpdf_more_warnings(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_more_warnings");
if (qpdf->warnings.empty()) {
std::vector<QPDFExc> w = qpdf->qpdf->getWarnings();
if (!w.empty()) {
qpdf->warnings.assign(w.begin(), w.end());
}
}
if (qpdf->warnings.empty()) {
return QPDF_FALSE;
} else {
return QPDF_TRUE;
}
}
QPDF_BOOL
qpdf_has_error(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_has_error");
return (qpdf->error.get() ? QPDF_TRUE : QPDF_FALSE);
}
qpdf_error
qpdf_get_error(qpdf_data qpdf)
{
if (qpdf->error.get()) {
qpdf->tmp_error.exc = qpdf->error;
qpdf->error = nullptr;
QTC::TC("qpdf", "qpdf-c qpdf_get_error returned error");
return &qpdf->tmp_error;
} else {
return nullptr;
}
}
qpdf_error
qpdf_next_warning(qpdf_data qpdf)
{
if (qpdf_more_warnings(qpdf)) {
qpdf->tmp_error.exc = std::make_shared<QPDFExc>(qpdf->warnings.front());
qpdf->warnings.pop_front();
QTC::TC("qpdf", "qpdf-c qpdf_next_warning returned warning");
return &qpdf->tmp_error;
} else {
return nullptr;
}
}
char const*
qpdf_get_error_full_text(qpdf_data qpdf, qpdf_error e)
{
if (e == nullptr) {
return "";
}
return e->exc->what();
}
enum qpdf_error_code_e
qpdf_get_error_code(qpdf_data qpdf, qpdf_error e)
{
if (e == nullptr) {
return qpdf_e_success;
}
return e->exc->getErrorCode();
}
char const*
qpdf_get_error_filename(qpdf_data qpdf, qpdf_error e)
{
if (e == nullptr) {
return "";
}
return e->exc->getFilename().c_str();
}
unsigned long long
qpdf_get_error_file_position(qpdf_data qpdf, qpdf_error e)
{
if (e == nullptr) {
return 0;
}
return QIntC::to_ulonglong(e->exc->getFilePosition());
}
char const*
qpdf_get_error_message_detail(qpdf_data qpdf, qpdf_error e)
{
if (e == nullptr) {
return "";
}
return e->exc->getMessageDetail().c_str();
}
QPDF_ERROR_CODE
qpdf_check_pdf(qpdf_data qpdf)
{
QPDF_ERROR_CODE status = trap_errors(qpdf, &call_check);
QTC::TC("qpdf", "qpdf-c called qpdf_check_pdf");
return status;
}
void
qpdf_set_logger(qpdf_data qpdf, qpdflogger_handle logger)
{
qpdf->qpdf->setLogger(logger->l);
}
qpdflogger_handle
qpdf_get_logger(qpdf_data qpdf)
{
return new _qpdflogger_handle(qpdf->qpdf->getLogger());
}
void
qpdf_set_suppress_warnings(qpdf_data qpdf, QPDF_BOOL value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_suppress_warnings");
qpdf->qpdf->setSuppressWarnings(value != QPDF_FALSE);
}
void
qpdf_set_ignore_xref_streams(qpdf_data qpdf, QPDF_BOOL value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_ignore_xref_streams");
qpdf->qpdf->setIgnoreXRefStreams(value != QPDF_FALSE);
}
void
qpdf_set_attempt_recovery(qpdf_data qpdf, QPDF_BOOL value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_attempt_recovery");
qpdf->qpdf->setAttemptRecovery(value != QPDF_FALSE);
}
QPDF_ERROR_CODE
qpdf_read(qpdf_data qpdf, char const* filename, char const* password)
{
QPDF_ERROR_CODE status = QPDF_SUCCESS;
qpdf->filename = filename;
qpdf->password = password;
status = trap_errors(qpdf, &call_read);
// We no longer have a good way to exercise a file with both
// warnings and errors because qpdf is getting much better at
// recovering.
QTC::TC(
"qpdf",
"qpdf-c called qpdf_read",
(status == 0) ? 0
: (status & QPDF_WARNINGS) ? 1
: (status & QPDF_ERRORS) ? 2
: -1);
return status;
}
QPDF_ERROR_CODE
qpdf_read_memory(
qpdf_data qpdf,
char const* description,
char const* buffer,
unsigned long long size,
char const* password)
{
QPDF_ERROR_CODE status = QPDF_SUCCESS;
qpdf->filename = description;
qpdf->buffer = buffer;
qpdf->size = size;
qpdf->password = password;
status = trap_errors(qpdf, &call_read_memory);
QTC::TC("qpdf", "qpdf-c called qpdf_read_memory", status);
return status;
}
QPDF_ERROR_CODE
qpdf_empty_pdf(qpdf_data qpdf)
{
qpdf->filename = "empty PDF";
qpdf->qpdf->emptyPDF();
QTC::TC("qpdf", "qpdf-c called qpdf_empty_pdf");
return QPDF_SUCCESS;
}
char const*
qpdf_get_pdf_version(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_get_pdf_version");
qpdf->tmp_string = qpdf->qpdf->getPDFVersion();
return qpdf->tmp_string.c_str();
}
int
qpdf_get_pdf_extension_level(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_get_pdf_extension_level");
return qpdf->qpdf->getExtensionLevel();
}
char const*
qpdf_get_user_password(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_get_user_password");
qpdf->tmp_string = qpdf->qpdf->getTrimmedUserPassword();
return qpdf->tmp_string.c_str();
}
char const*
qpdf_get_info_key(qpdf_data qpdf, char const* key)
{
char const* result = nullptr;
QPDFObjectHandle trailer = qpdf->qpdf->getTrailer();
if (trailer.hasKey("/Info")) {
QPDFObjectHandle info = trailer.getKey("/Info");
if (info.hasKey(key)) {
QPDFObjectHandle value = info.getKey(key);
if (value.isString()) {
qpdf->tmp_string = value.getStringValue();
result = qpdf->tmp_string.c_str();
}
}
}
QTC::TC("qpdf", "qpdf-c get_info_key", (result == nullptr ? 0 : 1));
return result;
}
void
qpdf_set_info_key(qpdf_data qpdf, char const* key, char const* value)
{
if ((key == nullptr) || (std::strlen(key) == 0) || (key[0] != '/')) {
return;
}
QPDFObjectHandle value_object;
if (value) {
QTC::TC("qpdf", "qpdf-c set_info_key to value");
value_object = QPDFObjectHandle::newString(value);
} else {
QTC::TC("qpdf", "qpdf-c set_info_key to null");
value_object = QPDFObjectHandle::newNull();
}
QPDFObjectHandle trailer = qpdf->qpdf->getTrailer();
if (!trailer.hasKey("/Info")) {
QTC::TC("qpdf", "qpdf-c add info to trailer");
trailer.replaceKey(
"/Info",
qpdf->qpdf->makeIndirectObject(QPDFObjectHandle::newDictionary()));
} else {
QTC::TC("qpdf", "qpdf-c set-info-key use existing info");
}
QPDFObjectHandle info = trailer.getKey("/Info");
info.replaceKey(key, value_object);
}
QPDF_BOOL
qpdf_is_linearized(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_is_linearized");
return (qpdf->qpdf->isLinearized() ? QPDF_TRUE : QPDF_FALSE);
}
QPDF_BOOL
qpdf_is_encrypted(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_is_encrypted");
return (qpdf->qpdf->isEncrypted() ? QPDF_TRUE : QPDF_FALSE);
}
QPDF_BOOL
qpdf_allow_accessibility(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_allow_accessibility");
return (qpdf->qpdf->allowAccessibility() ? QPDF_TRUE : QPDF_FALSE);
}
QPDF_BOOL
qpdf_allow_extract_all(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_allow_extract_all");
return (qpdf->qpdf->allowExtractAll() ? QPDF_TRUE : QPDF_FALSE);
}
QPDF_BOOL
qpdf_allow_print_low_res(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_allow_print_low_res");
return (qpdf->qpdf->allowPrintLowRes() ? QPDF_TRUE : QPDF_FALSE);
}
QPDF_BOOL
qpdf_allow_print_high_res(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_allow_print_high_res");
return (qpdf->qpdf->allowPrintHighRes() ? QPDF_TRUE : QPDF_FALSE);
}
QPDF_BOOL
qpdf_allow_modify_assembly(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_allow_modify_assembly");
return (qpdf->qpdf->allowModifyAssembly() ? QPDF_TRUE : QPDF_FALSE);
}
QPDF_BOOL
qpdf_allow_modify_form(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_allow_modify_form");
return (qpdf->qpdf->allowModifyForm() ? QPDF_TRUE : QPDF_FALSE);
}
QPDF_BOOL
qpdf_allow_modify_annotation(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_allow_modify_annotation");
return (qpdf->qpdf->allowModifyAnnotation() ? QPDF_TRUE : QPDF_FALSE);
}
QPDF_BOOL
qpdf_allow_modify_other(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_allow_modify_other");
return (qpdf->qpdf->allowModifyOther() ? QPDF_TRUE : QPDF_FALSE);
}
QPDF_BOOL
qpdf_allow_modify_all(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_allow_modify_all");
return (qpdf->qpdf->allowModifyAll() ? QPDF_TRUE : QPDF_FALSE);
}
static void
qpdf_init_write_internal(qpdf_data qpdf)
{
if (qpdf->qpdf_writer.get()) {
QTC::TC("qpdf", "qpdf-c called qpdf_init_write multiple times");
qpdf->qpdf_writer = nullptr;
if (qpdf->output_buffer.get()) {
qpdf->output_buffer = nullptr;
qpdf->write_memory = false;
qpdf->filename = nullptr;
}
}
}
QPDF_ERROR_CODE
qpdf_init_write(qpdf_data qpdf, char const* filename)
{
qpdf_init_write_internal(qpdf);
qpdf->filename = filename;
QPDF_ERROR_CODE status = trap_errors(qpdf, &call_init_write);
QTC::TC("qpdf", "qpdf-c called qpdf_init_write", status);
return status;
}
QPDF_ERROR_CODE
qpdf_init_write_memory(qpdf_data qpdf)
{
qpdf_init_write_internal(qpdf);
QPDF_ERROR_CODE status = trap_errors(qpdf, &call_init_write_memory);
QTC::TC("qpdf", "qpdf-c called qpdf_init_write_memory");
qpdf->write_memory = true;
return status;
}
static void
qpdf_get_buffer_internal(qpdf_data qpdf)
{
if (qpdf->write_memory && (qpdf->output_buffer == nullptr)) {
qpdf->output_buffer = qpdf->qpdf_writer->getBufferSharedPointer();
}
}
size_t
qpdf_get_buffer_length(qpdf_data qpdf)
{
qpdf_get_buffer_internal(qpdf);
size_t result = 0;
if (qpdf->output_buffer.get()) {
result = qpdf->output_buffer->getSize();
}
return result;
}
unsigned char const*
qpdf_get_buffer(qpdf_data qpdf)
{
unsigned char const* result = nullptr;
qpdf_get_buffer_internal(qpdf);
if (qpdf->output_buffer.get()) {
result = qpdf->output_buffer->getBuffer();
}
return result;
}
void
qpdf_set_object_stream_mode(qpdf_data qpdf, qpdf_object_stream_e mode)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_object_stream_mode");
qpdf->qpdf_writer->setObjectStreamMode(mode);
}
void
qpdf_set_compress_streams(qpdf_data qpdf, QPDF_BOOL value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_compress_streams");
qpdf->qpdf_writer->setCompressStreams(value != QPDF_FALSE);
}
void
qpdf_set_decode_level(qpdf_data qpdf, qpdf_stream_decode_level_e level)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_decode_level");
qpdf->qpdf_writer->setDecodeLevel(level);
}
void
qpdf_set_preserve_unreferenced_objects(qpdf_data qpdf, QPDF_BOOL value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_preserve_unreferenced_objects");
qpdf->qpdf_writer->setPreserveUnreferencedObjects(value != QPDF_FALSE);
}
void
qpdf_set_newline_before_endstream(qpdf_data qpdf, QPDF_BOOL value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_newline_before_endstream");
qpdf->qpdf_writer->setNewlineBeforeEndstream(value != QPDF_FALSE);
}
void
qpdf_set_stream_data_mode(qpdf_data qpdf, qpdf_stream_data_e mode)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_stream_data_mode");
qpdf->qpdf_writer->setStreamDataMode(mode);
}
void
qpdf_set_content_normalization(qpdf_data qpdf, QPDF_BOOL value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_content_normalization");
qpdf->qpdf_writer->setContentNormalization(value != QPDF_FALSE);
}
void
qpdf_set_qdf_mode(qpdf_data qpdf, QPDF_BOOL value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_qdf_mode");
qpdf->qpdf_writer->setQDFMode(value != QPDF_FALSE);
}
void
qpdf_set_deterministic_ID(qpdf_data qpdf, QPDF_BOOL value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_deterministic_ID");
qpdf->qpdf_writer->setDeterministicID(value != QPDF_FALSE);
}
void
qpdf_set_static_ID(qpdf_data qpdf, QPDF_BOOL value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_static_ID");
qpdf->qpdf_writer->setStaticID(value != QPDF_FALSE);
}
void
qpdf_set_static_aes_IV(qpdf_data qpdf, QPDF_BOOL value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_static_aes_IV");
qpdf->qpdf_writer->setStaticAesIV(value != QPDF_FALSE);
}
void
qpdf_set_suppress_original_object_IDs(qpdf_data qpdf, QPDF_BOOL value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_suppress_original_object_IDs");
qpdf->qpdf_writer->setSuppressOriginalObjectIDs(value != QPDF_FALSE);
}
void
qpdf_set_preserve_encryption(qpdf_data qpdf, QPDF_BOOL value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_preserve_encryption");
qpdf->qpdf_writer->setPreserveEncryption(value != QPDF_FALSE);
}
void
qpdf_set_r2_encryption_parameters_insecure(
qpdf_data qpdf,
char const* user_password,
char const* owner_password,
QPDF_BOOL allow_print,
QPDF_BOOL allow_modify,
QPDF_BOOL allow_extract,
QPDF_BOOL allow_annotate)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_r2_encryption_parameters_insecure");
qpdf->qpdf_writer->setR2EncryptionParametersInsecure(
user_password,
owner_password,
allow_print != QPDF_FALSE,
allow_modify != QPDF_FALSE,
allow_extract != QPDF_FALSE,
allow_annotate != QPDF_FALSE);
}
void
qpdf_set_r3_encryption_parameters_insecure(
qpdf_data qpdf,
char const* user_password,
char const* owner_password,
QPDF_BOOL allow_accessibility,
QPDF_BOOL allow_extract,
QPDF_BOOL allow_assemble,
QPDF_BOOL allow_annotate_and_form,
QPDF_BOOL allow_form_filling,
QPDF_BOOL allow_modify_other,
enum qpdf_r3_print_e print)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_r3_encryption_parameters_insecure");
qpdf->qpdf_writer->setR3EncryptionParametersInsecure(
user_password,
owner_password,
allow_accessibility != QPDF_FALSE,
allow_extract != QPDF_FALSE,
allow_assemble != QPDF_FALSE,
allow_annotate_and_form != QPDF_FALSE,
allow_form_filling != QPDF_FALSE,
allow_modify_other != QPDF_FALSE,
print);
}
void
qpdf_set_r4_encryption_parameters_insecure(
qpdf_data qpdf,
char const* user_password,
char const* owner_password,
QPDF_BOOL allow_accessibility,
QPDF_BOOL allow_extract,
QPDF_BOOL allow_assemble,
QPDF_BOOL allow_annotate_and_form,
QPDF_BOOL allow_form_filling,
QPDF_BOOL allow_modify_other,
enum qpdf_r3_print_e print,
QPDF_BOOL encrypt_metadata,
QPDF_BOOL use_aes)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_r4_encryption_parameters_insecure");
qpdf->qpdf_writer->setR4EncryptionParametersInsecure(
user_password,
owner_password,
allow_accessibility != QPDF_FALSE,
allow_extract != QPDF_FALSE,
allow_assemble != QPDF_FALSE,
allow_annotate_and_form != QPDF_FALSE,
allow_form_filling != QPDF_FALSE,
allow_modify_other != QPDF_FALSE,
print,
encrypt_metadata != QPDF_FALSE,
use_aes != QPDF_FALSE);
}
void
qpdf_set_r5_encryption_parameters2(
qpdf_data qpdf,
char const* user_password,
char const* owner_password,
QPDF_BOOL allow_accessibility,
QPDF_BOOL allow_extract,
QPDF_BOOL allow_assemble,
QPDF_BOOL allow_annotate_and_form,
QPDF_BOOL allow_form_filling,
QPDF_BOOL allow_modify_other,
enum qpdf_r3_print_e print,
QPDF_BOOL encrypt_metadata)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_r5_encryption_parameters");
qpdf->qpdf_writer->setR5EncryptionParameters(
user_password,
owner_password,
allow_accessibility != QPDF_FALSE,
allow_extract != QPDF_FALSE,
allow_assemble != QPDF_FALSE,
allow_annotate_and_form != QPDF_FALSE,
allow_form_filling != QPDF_FALSE,
allow_modify_other != QPDF_FALSE,
print,
encrypt_metadata != QPDF_FALSE);
}
void
qpdf_set_r6_encryption_parameters2(
qpdf_data qpdf,
char const* user_password,
char const* owner_password,
QPDF_BOOL allow_accessibility,
QPDF_BOOL allow_extract,
QPDF_BOOL allow_assemble,
QPDF_BOOL allow_annotate_and_form,
QPDF_BOOL allow_form_filling,
QPDF_BOOL allow_modify_other,
enum qpdf_r3_print_e print,
QPDF_BOOL encrypt_metadata)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_r6_encryption_parameters");
qpdf->qpdf_writer->setR6EncryptionParameters(
user_password,
owner_password,
allow_accessibility != QPDF_FALSE,
allow_extract != QPDF_FALSE,
allow_assemble != QPDF_FALSE,
allow_annotate_and_form != QPDF_FALSE,
allow_form_filling != QPDF_FALSE,
allow_modify_other != QPDF_FALSE,
print,
encrypt_metadata != QPDF_FALSE);
}
void
qpdf_set_linearization(qpdf_data qpdf, QPDF_BOOL value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_linearization");
qpdf->qpdf_writer->setLinearization(value != QPDF_FALSE);
}
void
qpdf_set_minimum_pdf_version(qpdf_data qpdf, char const* version)
{
qpdf_set_minimum_pdf_version_and_extension(qpdf, version, 0);
}
void
qpdf_set_minimum_pdf_version_and_extension(
qpdf_data qpdf, char const* version, int extension_level)
{
QTC::TC("qpdf", "qpdf-c called qpdf_set_minimum_pdf_version");
qpdf->qpdf_writer->setMinimumPDFVersion(version, extension_level);
}
void
qpdf_force_pdf_version(qpdf_data qpdf, char const* version)
{
qpdf_force_pdf_version_and_extension(qpdf, version, 0);
}
void
qpdf_force_pdf_version_and_extension(
qpdf_data qpdf, char const* version, int extension_level)
{
QTC::TC("qpdf", "qpdf-c called qpdf_force_pdf_version");
qpdf->qpdf_writer->forcePDFVersion(version, extension_level);
}
void
qpdf_register_progress_reporter(
qpdf_data qpdf,
void (*report_progress)(int percent, void* data),
void* data)
{
QTC::TC("qpdf", "qpdf-c registered progress reporter");
qpdf->qpdf_writer->registerProgressReporter(
std::shared_ptr<QPDFWriter::ProgressReporter>(
new QPDFWriter::FunctionProgressReporter(
std::bind(report_progress, std::placeholders::_1, data))));
}
QPDF_ERROR_CODE
qpdf_write(qpdf_data qpdf)
{
QPDF_ERROR_CODE status = QPDF_SUCCESS;
status = trap_errors(qpdf, &call_write);
QTC::TC("qpdf", "qpdf-c called qpdf_write", (status == 0) ? 0 : 1);
return status;
}
void
qpdf_silence_errors(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c silence oh errors");
qpdf->silence_errors = true;
}
template <class RET>
static RET
trap_oh_errors(
qpdf_data qpdf,
std::function<RET()> fallback,
std::function<RET(qpdf_data)> fn)
{
// Note: fallback is a function so we don't have to evaluate it
// unless needed. This is important because sometimes the fallback
// creates an object.
RET ret;
QPDF_ERROR_CODE status =
trap_errors(qpdf, [&ret, fn](qpdf_data q) { ret = fn(q); });
if (status & QPDF_ERRORS) {
if (!qpdf->silence_errors) {
QTC::TC(
"qpdf",
"qpdf-c warn about oh error",
qpdf->oh_error_occurred ? 0 : 1);
if (!qpdf->oh_error_occurred) {
qpdf->warnings.push_back(QPDFExc(
qpdf_e_internal,
qpdf->qpdf->getFilename(),
"",
0,
"C API function caught an exception that it isn't"
" returning; please point the application developer"
" to ERROR HANDLING in qpdf-c.h"));
qpdf->oh_error_occurred = true;
}
*QPDFLogger::defaultLogger()->getError()
<< qpdf->error->what() << "\n";
}
return fallback();
}
return ret;
}
static qpdf_oh
new_object(qpdf_data qpdf, QPDFObjectHandle const& qoh)
{
qpdf_oh oh = ++qpdf->next_oh; // never return 0
qpdf->oh_cache[oh] = std::make_shared<QPDFObjectHandle>(qoh);
return oh;
}
qpdf_oh
qpdf_oh_new_object(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_new_object");
return new_object(qpdf, *(qpdf->oh_cache[oh]));
}
void
qpdf_oh_release(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_release");
qpdf->oh_cache.erase(oh);
}
void
qpdf_oh_release_all(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_release_all");
qpdf->oh_cache.clear();
}
template <class T>
static std::function<T()>
return_T(T const& r)
{
return [&r]() { return r; };
}
static QPDF_BOOL
return_false()
{
return QPDF_FALSE;
}
static std::function<qpdf_oh()>
return_uninitialized(qpdf_data qpdf)
{
return [qpdf]() { return qpdf_oh_new_uninitialized(qpdf); };
}
static std::function<qpdf_oh()>
return_null(qpdf_data qpdf)
{
return [qpdf]() { return qpdf_oh_new_null(qpdf); };
}
qpdf_oh
qpdf_get_trailer(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_get_trailer");
return trap_oh_errors<qpdf_oh>(
qpdf, return_uninitialized(qpdf), [](qpdf_data q) {
return new_object(q, q->qpdf->getTrailer());
});
}
qpdf_oh
qpdf_get_root(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_get_root");
return trap_oh_errors<qpdf_oh>(
qpdf, return_uninitialized(qpdf), [](qpdf_data q) {
return new_object(q, q->qpdf->getRoot());
});
}
qpdf_oh
qpdf_get_object_by_id(qpdf_data qpdf, int objid, int generation)
{
QTC::TC("qpdf", "qpdf-c called qpdf_get_object_by_id");
return new_object(qpdf, qpdf->qpdf->getObjectByID(objid, generation));
}
template <class RET>
static RET
do_with_oh(
qpdf_data qpdf,
qpdf_oh oh,
std::function<RET()> fallback,
std::function<RET(QPDFObjectHandle&)> fn)
{
return trap_oh_errors<RET>(qpdf, fallback, [fn, oh](qpdf_data q) {
auto i = q->oh_cache.find(oh);
bool result = ((i != q->oh_cache.end()) && (i->second).get());
if (!result) {
QTC::TC("qpdf", "qpdf-c invalid object handle");
throw QPDFExc(
qpdf_e_internal,
q->qpdf->getFilename(),
std::string("C API object handle ") + QUtil::uint_to_string(oh),
0,
"attempted access to unknown object handle");
}
return fn(*(q->oh_cache[oh]));
});
}
static void
do_with_oh_void(
qpdf_data qpdf, qpdf_oh oh, std::function<void(QPDFObjectHandle&)> fn)
{
do_with_oh<bool>(
qpdf, oh, return_T<bool>(false), [fn](QPDFObjectHandle& o) {
fn(o);
return true; // unused
});
}
void
qpdf_replace_object(qpdf_data qpdf, int objid, int generation, qpdf_oh oh)
{
do_with_oh_void(qpdf, oh, [qpdf, objid, generation](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_replace_object");
qpdf->qpdf->replaceObject(objid, generation, o);
});
}
QPDF_BOOL
qpdf_oh_is_initialized(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_initialized");
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [](QPDFObjectHandle& o) {
return o.isInitialized();
});
}
QPDF_BOOL
qpdf_oh_is_bool(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_bool");
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [](QPDFObjectHandle& o) { return o.isBool(); });
}
QPDF_BOOL
qpdf_oh_is_null(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_null");
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [](QPDFObjectHandle& o) { return o.isNull(); });
}
QPDF_BOOL
qpdf_oh_is_integer(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_integer");
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [](QPDFObjectHandle& o) {
return o.isInteger();
});
}
QPDF_BOOL
qpdf_oh_is_real(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_real");
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [](QPDFObjectHandle& o) { return o.isReal(); });
}
QPDF_BOOL
qpdf_oh_is_name(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_name");
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [](QPDFObjectHandle& o) { return o.isName(); });
}
QPDF_BOOL
qpdf_oh_is_string(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_string");
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [](QPDFObjectHandle& o) {
return o.isString();
});
}
QPDF_BOOL
qpdf_oh_is_operator(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_operator");
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [](QPDFObjectHandle& o) {
return o.isOperator();
});
}
QPDF_BOOL
qpdf_oh_is_inline_image(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_inline_image");
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [](QPDFObjectHandle& o) {
return o.isInlineImage();
});
}
QPDF_BOOL
qpdf_oh_is_array(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_array");
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [](QPDFObjectHandle& o) {
return o.isArray();
});
}
QPDF_BOOL
qpdf_oh_is_dictionary(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_dictionary");
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [](QPDFObjectHandle& o) {
return o.isDictionary();
});
}
QPDF_BOOL
qpdf_oh_is_stream(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_stream");
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [](QPDFObjectHandle& o) {
return o.isStream();
});
}
QPDF_BOOL
qpdf_oh_is_indirect(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_indirect");
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [](QPDFObjectHandle& o) {
return o.isIndirect();
});
}
QPDF_BOOL
qpdf_oh_is_scalar(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_scalar");
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [](QPDFObjectHandle& o) {
return o.isScalar();
});
}
QPDF_BOOL
qpdf_oh_is_number(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_number");
return o.isNumber();
});
}
QPDF_BOOL
qpdf_oh_is_name_and_equals(qpdf_data qpdf, qpdf_oh oh, char const* name)
{
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [name](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_name_and_equals");
return o.isNameAndEquals(name);
});
}
QPDF_BOOL
qpdf_oh_is_dictionary_of_type(
qpdf_data qpdf, qpdf_oh oh, char const* type, char const* subtype)
{
auto stype = (subtype == nullptr) ? "" : subtype;
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [type, stype](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_dictionary_of_type");
return o.isDictionaryOfType(type, stype);
});
}
qpdf_object_type_e
qpdf_oh_get_type_code(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<qpdf_object_type_e>(
qpdf,
oh,
return_T<qpdf_object_type_e>(ot_uninitialized),
[](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_type_code");
return o.getTypeCode();
});
}
char const*
qpdf_oh_get_type_name(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<char const*>(
qpdf, oh, return_T<char const*>(""), [qpdf](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_type_name");
qpdf->tmp_string = o.getTypeName();
return qpdf->tmp_string.c_str();
});
}
qpdf_oh
qpdf_oh_wrap_in_array(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<qpdf_oh>(
qpdf,
oh,
[qpdf]() { return qpdf_oh_new_array(qpdf); },
[qpdf](QPDFObjectHandle& qoh) {
if (qoh.isArray()) {
QTC::TC("qpdf", "qpdf-c array to wrap_in_array");
return new_object(qpdf, qoh);
} else {
QTC::TC("qpdf", "qpdf-c non-array to wrap_in_array");
return new_object(
qpdf,
QPDFObjectHandle::newArray(
std::vector<QPDFObjectHandle>{qoh}));
}
});
}
qpdf_oh
qpdf_oh_parse(qpdf_data qpdf, char const* object_str)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_parse");
return trap_oh_errors<qpdf_oh>(
qpdf, return_uninitialized(qpdf), [object_str](qpdf_data q) {
return new_object(q, QPDFObjectHandle::parse(object_str));
});
}
QPDF_BOOL
qpdf_oh_get_bool_value(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_bool_value");
return o.getBoolValue();
});
}
QPDF_BOOL
qpdf_oh_get_value_as_bool(qpdf_data qpdf, qpdf_oh oh, QPDF_BOOL* value)
{
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [value](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_value_as_bool");
bool v = *value;
QPDF_BOOL result = o.getValueAsBool(v);
if (result) {
*value = v;
}
return result;
});
}
long long
qpdf_oh_get_int_value(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<long long>(
qpdf, oh, return_T<long long>(0LL), [](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_int_value");
return o.getIntValue();
});
}
QPDF_BOOL
qpdf_oh_get_value_as_longlong(qpdf_data qpdf, qpdf_oh oh, long long* value)
{
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [value](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_value_as_longlong");
return o.getValueAsInt(*value);
});
}
int
qpdf_oh_get_int_value_as_int(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<int>(qpdf, oh, return_T<int>(0), [](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_int_value_as_int");
return o.getIntValueAsInt();
});
}
QPDF_BOOL
qpdf_oh_get_value_as_int(qpdf_data qpdf, qpdf_oh oh, int* value)
{
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [value](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_value_as_int");
return o.getValueAsInt(*value);
});
}
unsigned long long
qpdf_oh_get_uint_value(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<unsigned long long>(
qpdf, oh, return_T<unsigned long long>(0ULL), [](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_uint_value");
return o.getUIntValue();
});
}
QPDF_BOOL
qpdf_oh_get_value_as_ulonglong(
qpdf_data qpdf, qpdf_oh oh, unsigned long long* value)
{
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [value](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_value_as_ulonglong");
return o.getValueAsUInt(*value);
});
}
unsigned int
qpdf_oh_get_uint_value_as_uint(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<unsigned int>(
qpdf, oh, return_T<unsigned int>(0U), [](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_uint_value_as_uint");
return o.getUIntValueAsUInt();
});
}
QPDF_BOOL
qpdf_oh_get_value_as_uint(qpdf_data qpdf, qpdf_oh oh, unsigned int* value)
{
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [value](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_value_as_uint");
return o.getValueAsUInt(*value);
});
}
char const*
qpdf_oh_get_real_value(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<char const*>(
qpdf, oh, return_T<char const*>(""), [qpdf](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_real_value");
qpdf->tmp_string = o.getRealValue();
return qpdf->tmp_string.c_str();
});
}
QPDF_BOOL
qpdf_oh_get_value_as_real(
qpdf_data qpdf, qpdf_oh oh, char const** value, size_t* length)
{
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [qpdf, value, length](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_value_as_real");
auto result = o.getValueAsReal(qpdf->tmp_string);
if (result) {
*value = qpdf->tmp_string.c_str();
*length = qpdf->tmp_string.length();
}
return result;
});
}
double
qpdf_oh_get_numeric_value(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<double>(
qpdf, oh, return_T<double>(0.0), [](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_numeric_value");
return o.getNumericValue();
});
}
QPDF_BOOL
qpdf_oh_get_value_as_number(qpdf_data qpdf, qpdf_oh oh, double* value)
{
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [value](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_value_as_number");
return o.getValueAsNumber(*value);
});
}
char const*
qpdf_oh_get_name(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<char const*>(
qpdf, oh, return_T<char const*>(""), [qpdf](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_name");
qpdf->tmp_string = o.getName();
return qpdf->tmp_string.c_str();
});
}
QPDF_BOOL
qpdf_oh_get_value_as_name(
qpdf_data qpdf, qpdf_oh oh, char const** value, size_t* length)
{
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [qpdf, value, length](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_value_as_name");
auto result = o.getValueAsName(qpdf->tmp_string);
if (result) {
*value = qpdf->tmp_string.c_str();
*length = qpdf->tmp_string.length();
}
return result;
});
}
char const*
qpdf_oh_get_string_value(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<char const*>(
qpdf, oh, return_T<char const*>(""), [qpdf](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_string_value");
qpdf->tmp_string = o.getStringValue();
return qpdf->tmp_string.c_str();
});
}
QPDF_BOOL
qpdf_oh_get_value_as_string(
qpdf_data qpdf, qpdf_oh oh, char const** value, size_t* length)
{
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [qpdf, value, length](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_value_as_string");
auto result = o.getValueAsString(qpdf->tmp_string);
if (result) {
*value = qpdf->tmp_string.c_str();
*length = qpdf->tmp_string.length();
}
return result;
});
}
char const*
qpdf_oh_get_utf8_value(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<char const*>(
qpdf, oh, return_T<char const*>(""), [qpdf](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_utf8_value");
qpdf->tmp_string = o.getUTF8Value();
return qpdf->tmp_string.c_str();
});
}
QPDF_BOOL
qpdf_oh_get_value_as_utf8(
qpdf_data qpdf, qpdf_oh oh, char const** value, size_t* length)
{
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [qpdf, value, length](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_value_as_utf8");
auto result = o.getValueAsUTF8(qpdf->tmp_string);
if (result) {
*value = qpdf->tmp_string.c_str();
*length = qpdf->tmp_string.length();
}
return result;
});
}
char const*
qpdf_oh_get_binary_string_value(qpdf_data qpdf, qpdf_oh oh, size_t* length)
{
return do_with_oh<char const*>(
qpdf,
oh,
return_T<char const*>(""),
[qpdf, length](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_binary_string_value");
qpdf->tmp_string = o.getStringValue();
*length = qpdf->tmp_string.length();
return qpdf->tmp_string.c_str();
});
}
char const*
qpdf_oh_get_binary_utf8_value(qpdf_data qpdf, qpdf_oh oh, size_t* length)
{
return do_with_oh<char const*>(
qpdf,
oh,
return_T<char const*>(""),
[qpdf, length](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_binary_utf8_value");
qpdf->tmp_string = o.getUTF8Value();
*length = qpdf->tmp_string.length();
return qpdf->tmp_string.c_str();
});
}
int
qpdf_oh_get_array_n_items(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<int>(qpdf, oh, return_T<int>(0), [](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_array_n_items");
return o.getArrayNItems();
});
}
qpdf_oh
qpdf_oh_get_array_item(qpdf_data qpdf, qpdf_oh oh, int n)
{
return do_with_oh<qpdf_oh>(
qpdf, oh, return_null(qpdf), [qpdf, n](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_array_item");
return new_object(qpdf, o.getArrayItem(n));
});
}
void
qpdf_oh_begin_dict_key_iter(qpdf_data qpdf, qpdf_oh oh)
{
qpdf->cur_iter_dict_keys = do_with_oh<std::set<std::string>>(
qpdf,
oh,
[]() { return std::set<std::string>(); },
[](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_begin_dict_key_iter");
return o.getKeys();
});
qpdf->dict_iter = qpdf->cur_iter_dict_keys.begin();
}
QPDF_BOOL
qpdf_oh_dict_more_keys(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_dict_more_keys");
return qpdf->dict_iter != qpdf->cur_iter_dict_keys.end();
}
char const*
qpdf_oh_dict_next_key(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_dict_next_key");
if (qpdf_oh_dict_more_keys(qpdf)) {
qpdf->cur_dict_key = *qpdf->dict_iter;
++qpdf->dict_iter;
return qpdf->cur_dict_key.c_str();
} else {
return nullptr;
}
}
QPDF_BOOL
qpdf_oh_has_key(qpdf_data qpdf, qpdf_oh oh, char const* key)
{
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [key](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_has_key");
return o.hasKey(key);
});
}
qpdf_oh
qpdf_oh_get_key(qpdf_data qpdf, qpdf_oh oh, char const* key)
{
return do_with_oh<qpdf_oh>(
qpdf, oh, return_null(qpdf), [qpdf, key](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_key");
return new_object(qpdf, o.getKey(key));
});
}
qpdf_oh
qpdf_oh_get_key_if_dict(qpdf_data qpdf, qpdf_oh oh, char const* key)
{
return do_with_oh<qpdf_oh>(
qpdf, oh, return_null(qpdf), [qpdf, key](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_key_if_dict");
return new_object(qpdf, o.getKeyIfDict(key));
});
}
QPDF_BOOL
qpdf_oh_is_or_has_name(qpdf_data qpdf, qpdf_oh oh, char const* key)
{
return do_with_oh<QPDF_BOOL>(
qpdf, oh, return_false, [key](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_is_or_has_name");
return o.isOrHasName(key);
});
}
qpdf_oh
qpdf_oh_new_uninitialized(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_new_uninitialized");
return new_object(qpdf, QPDFObjectHandle());
}
qpdf_oh
qpdf_oh_new_null(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_new_null");
return new_object(qpdf, QPDFObjectHandle::newNull());
}
qpdf_oh
qpdf_oh_new_bool(qpdf_data qpdf, QPDF_BOOL value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_new_bool");
return new_object(qpdf, QPDFObjectHandle::newBool(value));
}
qpdf_oh
qpdf_oh_new_integer(qpdf_data qpdf, long long value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_new_integer");
return new_object(qpdf, QPDFObjectHandle::newInteger(value));
}
qpdf_oh
qpdf_oh_new_real_from_string(qpdf_data qpdf, char const* value)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_new_real_from_string");
return new_object(qpdf, QPDFObjectHandle::newReal(value));
}
qpdf_oh
qpdf_oh_new_real_from_double(qpdf_data qpdf, double value, int decimal_places)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_new_real_from_double");
return new_object(qpdf, QPDFObjectHandle::newReal(value, decimal_places));
}
qpdf_oh
qpdf_oh_new_name(qpdf_data qpdf, char const* name)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_new_name");
return new_object(qpdf, QPDFObjectHandle::newName(name));
}
qpdf_oh
qpdf_oh_new_string(qpdf_data qpdf, char const* str)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_new_string");
return new_object(qpdf, QPDFObjectHandle::newString(str));
}
qpdf_oh
qpdf_oh_new_unicode_string(qpdf_data qpdf, char const* utf8_str)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_new_unicode_string");
return new_object(qpdf, QPDFObjectHandle::newUnicodeString(utf8_str));
}
qpdf_oh
qpdf_oh_new_binary_string(qpdf_data qpdf, char const* str, size_t length)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_new_binary_string");
return new_object(
qpdf, QPDFObjectHandle::newString(std::string(str, length)));
}
qpdf_oh
qpdf_oh_new_binary_unicode_string(
qpdf_data qpdf, char const* utf8_str, size_t length)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_new_binary_unicode_string");
return new_object(
qpdf,
QPDFObjectHandle::newUnicodeString(std::string(utf8_str, length)));
}
qpdf_oh
qpdf_oh_new_array(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_new_array");
return new_object(qpdf, QPDFObjectHandle::newArray());
}
qpdf_oh
qpdf_oh_new_dictionary(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_new_dictionary");
return new_object(qpdf, QPDFObjectHandle::newDictionary());
}
qpdf_oh
qpdf_oh_new_stream(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_oh_new_stream");
return new_object(qpdf, QPDFObjectHandle::newStream(qpdf->qpdf.get()));
}
void
qpdf_oh_make_direct(qpdf_data qpdf, qpdf_oh oh)
{
do_with_oh_void(qpdf, oh, [](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_make_direct");
o.makeDirect();
});
}
qpdf_oh
qpdf_make_indirect_object(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<qpdf_oh>(
qpdf, oh, return_uninitialized(qpdf), [qpdf](QPDFObjectHandle& o) {
return new_object(qpdf, qpdf->qpdf->makeIndirectObject(o));
});
}
static QPDFObjectHandle
qpdf_oh_item_internal(qpdf_data qpdf, qpdf_oh item)
{
return do_with_oh<QPDFObjectHandle>(
qpdf,
item,
[]() { return QPDFObjectHandle::newNull(); },
[](QPDFObjectHandle& o) { return o; });
}
void
qpdf_oh_set_array_item(qpdf_data qpdf, qpdf_oh oh, int at, qpdf_oh item)
{
do_with_oh_void(qpdf, oh, [qpdf, at, item](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_set_array_item");
o.setArrayItem(at, qpdf_oh_item_internal(qpdf, item));
});
}
void
qpdf_oh_insert_item(qpdf_data qpdf, qpdf_oh oh, int at, qpdf_oh item)
{
do_with_oh_void(qpdf, oh, [qpdf, at, item](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_insert_item");
o.insertItem(at, qpdf_oh_item_internal(qpdf, item));
});
}
void
qpdf_oh_append_item(qpdf_data qpdf, qpdf_oh oh, qpdf_oh item)
{
do_with_oh_void(qpdf, oh, [qpdf, item](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_append_item");
o.appendItem(qpdf_oh_item_internal(qpdf, item));
});
}
void
qpdf_oh_erase_item(qpdf_data qpdf, qpdf_oh oh, int at)
{
do_with_oh_void(qpdf, oh, [at](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_erase_item");
o.eraseItem(at);
});
}
void
qpdf_oh_replace_key(qpdf_data qpdf, qpdf_oh oh, char const* key, qpdf_oh item)
{
do_with_oh_void(qpdf, oh, [qpdf, key, item](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_replace_key");
o.replaceKey(key, qpdf_oh_item_internal(qpdf, item));
});
}
void
qpdf_oh_remove_key(qpdf_data qpdf, qpdf_oh oh, char const* key)
{
do_with_oh_void(qpdf, oh, [key](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_remove_key");
o.removeKey(key);
});
}
void
qpdf_oh_replace_or_remove_key(
qpdf_data qpdf, qpdf_oh oh, char const* key, qpdf_oh item)
{
do_with_oh_void(qpdf, oh, [qpdf, key, item](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_replace_or_remove_key");
o.replaceKey(key, qpdf_oh_item_internal(qpdf, item));
});
}
qpdf_oh
qpdf_oh_get_dict(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<qpdf_oh>(
qpdf, oh, return_null(qpdf), [qpdf](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_dict");
return new_object(qpdf, o.getDict());
});
}
int
qpdf_oh_get_object_id(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<int>(qpdf, oh, return_T<int>(0), [](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_object_id");
return o.getObjectID();
});
}
int
qpdf_oh_get_generation(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<int>(qpdf, oh, return_T<int>(0), [](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_generation");
return o.getGeneration();
});
}
char const*
qpdf_oh_unparse(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<char const*>(
qpdf, oh, return_T<char const*>(""), [qpdf](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_unparse");
qpdf->tmp_string = o.unparse();
return qpdf->tmp_string.c_str();
});
}
char const*
qpdf_oh_unparse_resolved(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<char const*>(
qpdf, oh, return_T<char const*>(""), [qpdf](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_unparse_resolved");
qpdf->tmp_string = o.unparseResolved();
return qpdf->tmp_string.c_str();
});
}
char const*
qpdf_oh_unparse_binary(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<char const*>(
qpdf, oh, return_T<char const*>(""), [qpdf](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_unparse_binary");
qpdf->tmp_string = o.unparseBinary();
return qpdf->tmp_string.c_str();
});
}
qpdf_oh
qpdf_oh_copy_foreign_object(
qpdf_data qpdf, qpdf_data other_qpdf, qpdf_oh foreign_oh)
{
return do_with_oh<qpdf_oh>(
other_qpdf,
foreign_oh,
return_uninitialized(qpdf),
[qpdf](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_copy_foreign_object");
return new_object(qpdf, qpdf->qpdf->copyForeignObject(o));
});
}
QPDF_ERROR_CODE
qpdf_oh_get_stream_data(
qpdf_data qpdf,
qpdf_oh stream_oh,
qpdf_stream_decode_level_e decode_level,
QPDF_BOOL* filtered,
unsigned char** bufp,
size_t* len)
{
return trap_errors(
qpdf, [stream_oh, decode_level, filtered, bufp, len](qpdf_data q) {
auto stream = qpdf_oh_item_internal(q, stream_oh);
Pipeline* p = nullptr;
Pl_Buffer buf("stream data");
if (bufp) {
p = &buf;
}
bool was_filtered = false;
if (stream.pipeStreamData(
p, &was_filtered, 0, decode_level, false, false)) {
QTC::TC("qpdf", "qpdf-c stream data buf set", bufp ? 0 : 1);
if (p && bufp && len) {
buf.getMallocBuffer(bufp, len);
}
QTC::TC(
"qpdf",
"qpdf-c stream data filtered set",
filtered ? 0 : 1);
if (filtered) {
*filtered = was_filtered ? QPDF_TRUE : QPDF_FALSE;
}
} else {
throw std::runtime_error(
"unable to access stream data for stream " +
stream.unparse());
}
});
}
QPDF_ERROR_CODE
qpdf_oh_get_page_content_data(
qpdf_data qpdf, qpdf_oh page_oh, unsigned char** bufp, size_t* len)
{
return trap_errors(qpdf, [page_oh, bufp, len](qpdf_data q) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_page_content_data");
auto o = qpdf_oh_item_internal(q, page_oh);
Pl_Buffer buf("page contents");
o.pipePageContents(&buf);
buf.getMallocBuffer(bufp, len);
});
}
void
qpdf_oh_replace_stream_data(
qpdf_data qpdf,
qpdf_oh stream_oh,
unsigned char const* buf,
size_t len,
qpdf_oh filter_oh,
qpdf_oh decode_parms_oh)
{
do_with_oh_void(
qpdf,
stream_oh,
[qpdf, buf, len, filter_oh, decode_parms_oh](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_replace_stream_data");
auto filter = qpdf_oh_item_internal(qpdf, filter_oh);
auto decode_parms = qpdf_oh_item_internal(qpdf, decode_parms_oh);
// XXX test with binary data with null
o.replaceStreamData(
std::string(reinterpret_cast<char const*>(buf), len),
filter,
decode_parms);
});
}
int
qpdf_get_num_pages(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_num_pages");
int n = -1;
QPDF_ERROR_CODE code = trap_errors(qpdf, [&n](qpdf_data q) {
n = QIntC::to_int(q->qpdf->getAllPages().size());
});
if (code & QPDF_ERRORS) {
return -1;
}
return n;
}
qpdf_oh
qpdf_get_page_n(qpdf_data qpdf, size_t i)
{
QTC::TC("qpdf", "qpdf-c called qpdf_get_page_n");
qpdf_oh result = 0;
QPDF_ERROR_CODE code = trap_errors(qpdf, [&result, i](qpdf_data q) {
result = new_object(q, q->qpdf->getAllPages().at(i));
});
if ((code & QPDF_ERRORS) || (result == 0)) {
return qpdf_oh_new_uninitialized(qpdf);
}
return result;
}
QPDF_ERROR_CODE
qpdf_update_all_pages_cache(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_update_all_pages_cache");
return trap_errors(
qpdf, [](qpdf_data q) { q->qpdf->updateAllPagesCache(); });
}
int
qpdf_find_page_by_id(qpdf_data qpdf, int objid, int generation)
{
QTC::TC("qpdf", "qpdf-c called qpdf_find_page_by_id");
int n = -1;
QPDFObjGen og(objid, generation);
QPDF_ERROR_CODE code = trap_errors(qpdf, [&n, &og](qpdf_data q) {
n = QIntC::to_int(q->qpdf->findPage(og));
});
if (code & QPDF_ERRORS) {
return -1;
}
return n;
}
int
qpdf_find_page_by_oh(qpdf_data qpdf, qpdf_oh oh)
{
QTC::TC("qpdf", "qpdf-c called qpdf_find_page_by_oh");
return do_with_oh<int>(
qpdf, oh, return_T<int>(-1), [qpdf](QPDFObjectHandle& o) {
return qpdf->qpdf->findPage(o);
});
}
QPDF_ERROR_CODE
qpdf_push_inherited_attributes_to_page(qpdf_data qpdf)
{
QTC::TC("qpdf", "qpdf-c called qpdf_push_inherited_attributes_to_page");
return trap_errors(
qpdf, [](qpdf_data q) { q->qpdf->pushInheritedAttributesToPage(); });
}
QPDF_ERROR_CODE
qpdf_add_page(
qpdf_data qpdf, qpdf_data newpage_qpdf, qpdf_oh newpage, QPDF_BOOL first)
{
QTC::TC("qpdf", "qpdf-c called qpdf_add_page");
auto page = qpdf_oh_item_internal(newpage_qpdf, newpage);
return trap_errors(
qpdf, [&page, first](qpdf_data q) { q->qpdf->addPage(page, first); });
}
QPDF_ERROR_CODE
qpdf_add_page_at(
qpdf_data qpdf,
qpdf_data newpage_qpdf,
qpdf_oh newpage,
QPDF_BOOL before,
qpdf_oh refpage)
{
QTC::TC("qpdf", "qpdf-c called qpdf_add_page_at");
auto page = qpdf_oh_item_internal(newpage_qpdf, newpage);
auto ref = qpdf_oh_item_internal(qpdf, refpage);
return trap_errors(qpdf, [&page, before, &ref](qpdf_data q) {
q->qpdf->addPageAt(page, before, ref);
});
}
QPDF_ERROR_CODE
qpdf_remove_page(qpdf_data qpdf, qpdf_oh page)
{
QTC::TC("qpdf", "qpdf-c called qpdf_remove_page");
auto p = qpdf_oh_item_internal(qpdf, page);
return trap_errors(qpdf, [&p](qpdf_data q) { q->qpdf->removePage(p); });
}
QPDF_ERROR_CODE
qpdf_create_from_json_file(qpdf_data qpdf, char const* filename)
{
QPDF_ERROR_CODE status = QPDF_SUCCESS;
qpdf->filename = filename;
status = trap_errors(
qpdf, [](qpdf_data q) { q->qpdf->createFromJSON(q->filename); });
return status;
}
QPDF_ERROR_CODE
qpdf_create_from_json_data(
qpdf_data qpdf, char const* buffer, unsigned long long size)
{
QPDF_ERROR_CODE status = QPDF_SUCCESS;
qpdf->filename = "json buffer";
qpdf->buffer = buffer;
qpdf->size = size;
auto b =
new Buffer(QUtil::unsigned_char_pointer(buffer), QIntC::to_size(size));
auto is = std::make_shared<BufferInputSource>(qpdf->filename, b, true);
status =
trap_errors(qpdf, [&is](qpdf_data q) { q->qpdf->createFromJSON(is); });
return status;
}
QPDF_ERROR_CODE
qpdf_update_from_json_file(qpdf_data qpdf, char const* filename)
{
QPDF_ERROR_CODE status = QPDF_SUCCESS;
status = trap_errors(
qpdf, [filename](qpdf_data q) { q->qpdf->updateFromJSON(filename); });
return status;
}
QPDF_ERROR_CODE
qpdf_update_from_json_data(
qpdf_data qpdf, char const* buffer, unsigned long long size)
{
QPDF_ERROR_CODE status = QPDF_SUCCESS;
auto b =
new Buffer(QUtil::unsigned_char_pointer(buffer), QIntC::to_size(size));
auto is = std::make_shared<BufferInputSource>(qpdf->filename, b, true);
status =
trap_errors(qpdf, [&is](qpdf_data q) { q->qpdf->updateFromJSON(is); });
return status;
}
QPDF_ERROR_CODE
qpdf_write_json(
qpdf_data qpdf,
int version,
qpdf_write_fn_t fn,
void* udata,
enum qpdf_stream_decode_level_e decode_level,
enum qpdf_json_stream_data_e json_stream_data,
char const* file_prefix,
char const* const* wanted_objects)
{
QPDF_ERROR_CODE status = QPDF_SUCCESS;
auto p = std::make_shared<Pl_Function>("write_json", nullptr, fn, udata);
std::set<std::string> wanted_objects_set;
if (wanted_objects) {
for (auto i = wanted_objects; *i; ++i) {
wanted_objects_set.insert(*i);
}
}
status = trap_errors(
qpdf,
[version,
p,
decode_level,
json_stream_data,
file_prefix,
&wanted_objects_set](qpdf_data q) {
q->qpdf->writeJSON(
version,
p.get(),
decode_level,
json_stream_data,
file_prefix,
wanted_objects_set);
});
return status;
}
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