mirror of
https://github.com/google/sandboxed-api.git
synced 2024-03-22 13:11:30 +08:00
244 lines
9.3 KiB
C++
244 lines
9.3 KiB
C++
// Copyright 2020 Google LLC
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include <array>
|
|
#include <cstring>
|
|
|
|
#include "helper.h" // NOLINT(build/include)
|
|
#include "tiffio.h" // NOLINT(build/include)
|
|
|
|
using ::sapi::IsOk;
|
|
using ::testing::Eq;
|
|
using ::testing::IsFalse;
|
|
using ::testing::IsTrue;
|
|
using ::testing::NotNull;
|
|
|
|
namespace {
|
|
|
|
struct ChannelLimits {
|
|
uint8_t min_red;
|
|
uint8_t max_red;
|
|
uint8_t min_green;
|
|
uint8_t max_green;
|
|
uint8_t min_blue;
|
|
uint8_t max_blue;
|
|
uint8_t min_alpha;
|
|
uint8_t max_alpha;
|
|
};
|
|
|
|
constexpr unsigned kRawTileNumber = 9;
|
|
constexpr unsigned kClusterSize = 6;
|
|
constexpr unsigned kChannelsInPixel = 3;
|
|
constexpr unsigned kTestCount = 3;
|
|
constexpr unsigned kImageSize = 128 * 128;
|
|
constexpr unsigned kClusterImageSize = 64 * 64;
|
|
using ClusterData = std::array<uint8_t, kClusterSize>;
|
|
|
|
constexpr std::array<std::pair<unsigned, ClusterData>, kTestCount> kClusters = {
|
|
{{0, {0, 0, 2, 0, 138, 139}},
|
|
{64, {0, 0, 9, 6, 134, 119}},
|
|
{128, {44, 40, 63, 59, 230, 95}}}};
|
|
|
|
constexpr std::array<std::pair<unsigned, ChannelLimits>, kTestCount> kLimits = {
|
|
{{0, {15, 18, 0, 0, 18, 41, 255, 255}},
|
|
{64, {0, 0, 0, 0, 0, 2, 255, 255}},
|
|
{512, {5, 6, 34, 36, 182, 196, 255, 255}}}};
|
|
|
|
bool CheckCluster(unsigned cluster, const sapi::v::Array<uint8_t>& buffer,
|
|
const ClusterData& expected_cluster) {
|
|
bool is_overrun = (buffer.GetSize() <= cluster * kClusterSize);
|
|
EXPECT_THAT(is_overrun, IsFalse()) << "Overrun";
|
|
|
|
if (is_overrun) {
|
|
return true;
|
|
}
|
|
|
|
auto target = buffer.GetData() + cluster * kClusterSize;
|
|
bool comp =
|
|
!(std::memcmp(target, expected_cluster.data(), kClusterSize) == 0);
|
|
|
|
// the image is split on 6-bit clusters because it has YCbCr color format
|
|
EXPECT_THAT(comp, IsFalse())
|
|
<< "Cluster " << cluster << " did not match expected results.\n"
|
|
<< "Expect: " << expected_cluster[0] << "\t" << expected_cluster[1]
|
|
<< "\t" << expected_cluster[2] << "\t" << expected_cluster[3] << "\t"
|
|
<< expected_cluster[4] << "\t" << expected_cluster[5] << "\n"
|
|
<< "Got: " << target[0] << "\t" << target[1] << "\t" << target[2] << "\t"
|
|
<< target[3] << "\t" << target[4] << "\t" << target[5];
|
|
|
|
return comp;
|
|
}
|
|
|
|
bool CheckRgbPixel(unsigned pixel, const ChannelLimits& limits,
|
|
const sapi::v::Array<uint8_t>& buffer) {
|
|
bool is_overrun = (buffer.GetSize() <= pixel * kChannelsInPixel);
|
|
EXPECT_THAT(is_overrun, IsFalse()) << "Overrun";
|
|
|
|
if (is_overrun) {
|
|
return true;
|
|
}
|
|
|
|
auto rgb = buffer.GetData() + pixel * kChannelsInPixel;
|
|
bool comp = !(rgb[0] >= limits.min_red && rgb[0] <= limits.max_red &&
|
|
rgb[1] >= limits.min_green && rgb[1] <= limits.max_green &&
|
|
rgb[2] >= limits.min_blue && rgb[2] <= limits.max_blue);
|
|
|
|
EXPECT_THAT(comp, IsFalse())
|
|
<< "Pixel " << pixel << " did not match expected results.\n"
|
|
<< "Got R=" << rgb[0] << " (expected " << limits.min_red
|
|
<< "..=" << limits.max_red << "), G=" << rgb[1] << " (expected "
|
|
<< limits.min_green << "..=" << limits.max_green << "), B=" << rgb[2]
|
|
<< " (expected " << limits.min_blue << "..=" << limits.max_blue << ")";
|
|
return comp;
|
|
}
|
|
|
|
bool CheckRgbaPixel(unsigned pixel, const ChannelLimits& limits,
|
|
const sapi::v::Array<unsigned>& buffer) {
|
|
// RGBA images are upside down - adjust for normal ordering
|
|
unsigned adjusted_pixel = pixel % 128 + (127 - (pixel / 128)) * 128;
|
|
|
|
bool is_overrun = (buffer.GetSize() <= adjusted_pixel);
|
|
EXPECT_THAT(is_overrun, IsFalse()) << "Overrun";
|
|
|
|
if (is_overrun) {
|
|
return true;
|
|
}
|
|
|
|
auto rgba = buffer[adjusted_pixel];
|
|
bool comp = !(TIFFGetR(rgba) >= static_cast<unsigned>(limits.min_red) &&
|
|
TIFFGetR(rgba) <= static_cast<unsigned>(limits.max_red) &&
|
|
TIFFGetG(rgba) >= static_cast<unsigned>(limits.min_green) &&
|
|
TIFFGetG(rgba) <= static_cast<unsigned>(limits.max_green) &&
|
|
TIFFGetB(rgba) >= static_cast<unsigned>(limits.min_blue) &&
|
|
TIFFGetB(rgba) <= static_cast<unsigned>(limits.max_blue) &&
|
|
TIFFGetA(rgba) >= static_cast<unsigned>(limits.min_alpha) &&
|
|
TIFFGetA(rgba) <= static_cast<unsigned>(limits.max_alpha));
|
|
|
|
EXPECT_THAT(comp, IsFalse())
|
|
<< "Pixel " << pixel << " did not match expected results.\n"
|
|
<< "Got R=" << TIFFGetR(rgba) << " (expected " << limits.min_red
|
|
<< "..=" << limits.max_red << "), G=" << TIFFGetG(rgba) << " (expected "
|
|
<< limits.min_green << "..=" << limits.max_green
|
|
<< "), B=" << TIFFGetB(rgba) << " (expected " << limits.min_blue
|
|
<< "..=" << limits.max_blue << "), A=" << TIFFGetA(rgba) << " (expected "
|
|
<< limits.min_alpha << "..=" << limits.max_alpha << ")";
|
|
return comp;
|
|
}
|
|
|
|
TEST(SandboxTest, RawDecode) {
|
|
tsize_t sz;
|
|
bool pixel_status = false;
|
|
bool cluster_status = false;
|
|
std::string srcfile = GetFilePath("quad-tile.jpg.tiff");
|
|
|
|
TiffSapiSandbox sandbox(srcfile);
|
|
ASSERT_THAT(sandbox.Init(), IsOk()) << "Couldn't initialize Sandboxed API";
|
|
|
|
sapi::v::UShort h, v;
|
|
absl::StatusOr<TIFF*> status_or_tif;
|
|
absl::StatusOr<int> status_or_int;
|
|
absl::StatusOr<tmsize_t> status_or_long;
|
|
|
|
TiffApi api(&sandbox);
|
|
sapi::v::ConstCStr srcfile_var(srcfile.c_str());
|
|
sapi::v::ConstCStr r_var("r");
|
|
|
|
status_or_tif = api.TIFFOpen(srcfile_var.PtrBefore(), r_var.PtrBefore());
|
|
ASSERT_THAT(status_or_tif, IsOk()) << "Could not open " << srcfile;
|
|
|
|
sapi::v::RemotePtr tif(status_or_tif.value());
|
|
ASSERT_THAT(tif.GetValue(), NotNull())
|
|
<< "Could not open " << srcfile << ", TIFFOpen return NULL";
|
|
|
|
status_or_int = api.TIFFGetField2(&tif, TIFFTAG_YCBCRSUBSAMPLING, h.PtrBoth(),
|
|
v.PtrBoth());
|
|
ASSERT_THAT(status_or_int, IsOk()) << "TIFFGetField2 fatal error";
|
|
EXPECT_THAT(
|
|
status_or_int.value() == 0 || h.GetValue() != 2 || v.GetValue() != 2,
|
|
IsFalse())
|
|
<< "Could not retrieve subsampling tag";
|
|
|
|
status_or_long = api.TIFFTileSize(&tif);
|
|
ASSERT_THAT(status_or_int, IsOk()) << "TIFFTileSize fatal error";
|
|
EXPECT_THAT(status_or_long.value(), Eq(kClusterImageSize * kClusterSize))
|
|
<< "Unexpected TileSize " << status_or_long.value() << ". Expected "
|
|
<< kClusterImageSize * kClusterSize << " bytes\n";
|
|
sz = status_or_long.value();
|
|
|
|
sapi::v::Array<uint8_t> buffer_(sz);
|
|
// Read a tile in decompressed form, but still YCbCr subsampled
|
|
status_or_long =
|
|
api.TIFFReadEncodedTile(&tif, kRawTileNumber, buffer_.PtrBoth(), sz);
|
|
ASSERT_THAT(status_or_long, IsOk()) << "TIFFReadEncodedTile fatal error";
|
|
EXPECT_THAT(status_or_long.value(), Eq(sz))
|
|
<< "Did not get expected result code from TIFFReadEncodedTile()("
|
|
<< (int)status_or_long.value() << " instead of " << (int)sz << ")";
|
|
|
|
for (const auto& [id, data] : kClusters) {
|
|
cluster_status |= CheckCluster(id, buffer_, data);
|
|
}
|
|
ASSERT_FALSE(cluster_status) << "Clusters did not match expected results";
|
|
|
|
status_or_int =
|
|
api.TIFFSetFieldU1(&tif, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB);
|
|
ASSERT_THAT(status_or_int, IsOk()) << "TIFFSetFieldU1 fatal error";
|
|
EXPECT_THAT(status_or_int.value(), IsTrue())
|
|
<< "The JPEGCOLORMODE tag cannot be changed";
|
|
|
|
status_or_long = api.TIFFTileSize(&tif);
|
|
ASSERT_THAT(status_or_long, IsOk()) << "TIFFTileSize fatal error";
|
|
EXPECT_THAT(status_or_long.value(), Eq(kImageSize * kChannelsInPixel))
|
|
<< "Unexpected TileSize " << status_or_long.value() << ". Expected "
|
|
<< kImageSize * kChannelsInPixel << " bytes\n";
|
|
sz = status_or_long.value();
|
|
|
|
sapi::v::Array<uint8_t> buffer2_(sz);
|
|
status_or_long =
|
|
api.TIFFReadEncodedTile(&tif, kRawTileNumber, buffer2_.PtrBoth(), sz);
|
|
ASSERT_THAT(status_or_long, IsOk()) << "TIFFReadEncodedTile fatal error";
|
|
EXPECT_THAT(status_or_long.value(), Eq(sz))
|
|
<< "Did not get expected result code from TIFFReadEncodedTile()("
|
|
<< status_or_long.value() << " instead of " << sz;
|
|
|
|
for (const auto& [id, data] : kLimits) {
|
|
pixel_status |= CheckRgbPixel(id, data, buffer2_);
|
|
}
|
|
|
|
ASSERT_THAT(api.TIFFClose(&tif), IsOk()) << "TIFFClose fatal error";
|
|
|
|
status_or_tif = api.TIFFOpen(srcfile_var.PtrBefore(), r_var.PtrBefore());
|
|
ASSERT_THAT(status_or_tif, IsOk()) << "TIFFOpen fatal error";
|
|
|
|
sapi::v::RemotePtr tif2(status_or_tif.value());
|
|
ASSERT_THAT(tif2.GetValue(), NotNull())
|
|
<< "Could not open " << srcfile << ", TIFFOpen return NULL";
|
|
|
|
sapi::v::Array<unsigned> rgba_buffer_(kImageSize);
|
|
|
|
status_or_int =
|
|
api.TIFFReadRGBATile(&tif2, 1 * 128, 2 * 128, rgba_buffer_.PtrBoth());
|
|
ASSERT_THAT(status_or_int, IsOk()) << "TIFFReadRGBATile fatal error";
|
|
EXPECT_THAT(status_or_int.value(), IsTrue())
|
|
<< "TIFFReadRGBATile() returned failure code";
|
|
|
|
for (const auto& [id, data] : kLimits) {
|
|
pixel_status |= CheckRgbaPixel(id, data, rgba_buffer_);
|
|
}
|
|
|
|
EXPECT_THAT(api.TIFFClose(&tif2), IsOk()) << "TIFFClose fatal error";
|
|
EXPECT_THAT(pixel_status, IsFalse()) << "wrong encoding";
|
|
}
|
|
|
|
} // namespace
|