chromium/third_party/pdfium/fpdfsdk/fpdf_signature.cpp

// Copyright 2020 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "public/fpdf_signature.h"

#include <utility>
#include <vector>

#include "constants/form_fields.h"
#include "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fpdfapi/parser/cpdf_document.h"
#include "core/fxcrt/compiler_specific.h"
#include "core/fxcrt/fx_memcpy_wrappers.h"
#include "core/fxcrt/numerics/safe_conversions.h"
#include "core/fxcrt/span.h"
#include "core/fxcrt/span_util.h"
#include "core/fxcrt/stl_util.h"
#include "fpdfsdk/cpdfsdk_helpers.h"

namespace {

std::vector<RetainPtr<const CPDF_Dictionary>> CollectSignatures(
    CPDF_Document* doc) { … }

}  // namespace

FPDF_EXPORT int FPDF_CALLCONV FPDF_GetSignatureCount(FPDF_DOCUMENT document) { … }

FPDF_EXPORT FPDF_SIGNATURE FPDF_CALLCONV
FPDF_GetSignatureObject(FPDF_DOCUMENT document, int index) { … }

FPDF_EXPORT unsigned long FPDF_CALLCONV
FPDFSignatureObj_GetContents(FPDF_SIGNATURE signature,
                             void* buffer,
                             unsigned long length) { … }

FPDF_EXPORT unsigned long FPDF_CALLCONV
FPDFSignatureObj_GetByteRange(FPDF_SIGNATURE signature,
                              int* buffer,
                              unsigned long length) { … }

FPDF_EXPORT unsigned long FPDF_CALLCONV
FPDFSignatureObj_GetSubFilter(FPDF_SIGNATURE signature,
                              char* buffer,
                              unsigned long length) { … }

FPDF_EXPORT unsigned long FPDF_CALLCONV
FPDFSignatureObj_GetReason(FPDF_SIGNATURE signature,
                           void* buffer,
                           unsigned long length) { … }

FPDF_EXPORT unsigned long FPDF_CALLCONV
FPDFSignatureObj_GetTime(FPDF_SIGNATURE signature,
                         char* buffer,
                         unsigned long length) { … }

FPDF_EXPORT unsigned int FPDF_CALLCONV
FPDFSignatureObj_GetDocMDPPermission(FPDF_SIGNATURE signature) { … }