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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "content/browser/renderer_host/clipboard_message_filter.h" |
| 6 |
| 7 #include <string.h> |
| 8 |
| 9 #include "base/memory/ref_counted.h" |
| 10 #include "base/process/process_handle.h" |
| 11 #include "base/run_loop.h" |
| 12 #include "content/public/test/test_browser_thread_bundle.h" |
| 13 #include "testing/gtest/include/gtest/gtest.h" |
| 14 #include "third_party/skia/include/core/SkBitmap.h" |
| 15 #include "ui/base/test/test_clipboard.h" |
| 16 #include "ui/gfx/size.h" |
| 17 |
| 18 namespace content { |
| 19 |
| 20 class ClipboardMessageFilterTest : public ::testing::Test { |
| 21 protected: |
| 22 ClipboardMessageFilterTest() |
| 23 : filter_(new ClipboardMessageFilter), |
| 24 clipboard_(ui::TestClipboard::CreateForCurrentThread()) { |
| 25 filter_->set_peer_pid_for_testing(base::GetCurrentProcId()); |
| 26 } |
| 27 |
| 28 virtual ~ClipboardMessageFilterTest() override { |
| 29 ui::Clipboard::DestroyClipboardForCurrentThread(); |
| 30 } |
| 31 |
| 32 scoped_ptr<base::SharedMemory> CreateAndMapReadOnlySharedMemory(size_t size) { |
| 33 scoped_ptr<base::SharedMemory> m = CreateReadOnlySharedMemory(size); |
| 34 if (!m->Map(size)) |
| 35 return nullptr; |
| 36 return m; |
| 37 } |
| 38 |
| 39 scoped_ptr<base::SharedMemory> CreateReadOnlySharedMemory(size_t size) { |
| 40 scoped_ptr<base::SharedMemory> m(new base::SharedMemory()); |
| 41 base::SharedMemoryCreateOptions options; |
| 42 options.size = size; |
| 43 options.share_read_only = true; |
| 44 if (!m->Create(options)) |
| 45 return nullptr; |
| 46 return m; |
| 47 } |
| 48 |
| 49 void CallWriteImage(const gfx::Size& size, |
| 50 base::SharedMemory* shared_memory) { |
| 51 base::SharedMemoryHandle handle; |
| 52 ASSERT_TRUE(shared_memory->GiveReadOnlyToProcess( |
| 53 base::GetCurrentProcessHandle(), &handle)); |
| 54 CallWriteImageDirectly(size, handle); |
| 55 } |
| 56 |
| 57 // Prefer to use CallWriteImage() in tests. |
| 58 void CallWriteImageDirectly(const gfx::Size& size, |
| 59 base::SharedMemoryHandle handle) { |
| 60 filter_->OnWriteImage(ui::CLIPBOARD_TYPE_COPY_PASTE, size, handle); |
| 61 } |
| 62 |
| 63 void CallCommitWrite() { |
| 64 filter_->OnCommitWrite(ui::CLIPBOARD_TYPE_COPY_PASTE); |
| 65 base::RunLoop().RunUntilIdle(); |
| 66 } |
| 67 |
| 68 ui::Clipboard* clipboard() { return clipboard_; } |
| 69 |
| 70 private: |
| 71 const TestBrowserThreadBundle thread_bundle_; |
| 72 const scoped_refptr<ClipboardMessageFilter> filter_; |
| 73 ui::Clipboard* const clipboard_; |
| 74 }; |
| 75 |
| 76 // Test that it actually works. |
| 77 TEST_F(ClipboardMessageFilterTest, SimpleImage) { |
| 78 static const uint32_t bitmap_data[] = { |
| 79 0x33333333, 0xdddddddd, 0xeeeeeeee, 0x00000000, |
| 80 0x88888888, 0x66666666, 0x55555555, 0xbbbbbbbb, |
| 81 0x44444444, 0xaaaaaaaa, 0x99999999, 0x77777777, |
| 82 0xffffffff, 0x11111111, 0x22222222, 0xcccccccc, |
| 83 }; |
| 84 |
| 85 scoped_ptr<base::SharedMemory> shared_memory = |
| 86 CreateAndMapReadOnlySharedMemory(sizeof(bitmap_data)); |
| 87 memcpy(shared_memory->memory(), bitmap_data, sizeof(bitmap_data)); |
| 88 |
| 89 CallWriteImage(gfx::Size(4, 4), shared_memory.get()); |
| 90 uint64_t sequence_number = |
| 91 clipboard()->GetSequenceNumber(ui::CLIPBOARD_TYPE_COPY_PASTE); |
| 92 CallCommitWrite(); |
| 93 |
| 94 EXPECT_NE(sequence_number, |
| 95 clipboard()->GetSequenceNumber(ui::CLIPBOARD_TYPE_COPY_PASTE)); |
| 96 EXPECT_FALSE(clipboard()->IsFormatAvailable( |
| 97 ui::Clipboard::GetPlainTextFormatType(), ui::CLIPBOARD_TYPE_COPY_PASTE)); |
| 98 EXPECT_TRUE(clipboard()->IsFormatAvailable( |
| 99 ui::Clipboard::GetBitmapFormatType(), ui::CLIPBOARD_TYPE_COPY_PASTE)); |
| 100 |
| 101 SkBitmap actual = clipboard()->ReadImage(ui::CLIPBOARD_TYPE_COPY_PASTE); |
| 102 SkAutoLockPixels locked(actual); |
| 103 EXPECT_EQ(sizeof(bitmap_data), actual.getSize()); |
| 104 EXPECT_EQ(0, |
| 105 memcmp(bitmap_data, actual.getAddr32(0, 0), sizeof(bitmap_data))); |
| 106 } |
| 107 |
| 108 // Test with a size that would overflow a naive 32-bit row bytes calculation. |
| 109 TEST_F(ClipboardMessageFilterTest, ImageSizeOverflows32BitRowBytes) { |
| 110 scoped_ptr<base::SharedMemory> shared_memory = |
| 111 CreateReadOnlySharedMemory(0x20000000); |
| 112 |
| 113 CallWriteImage(gfx::Size(0x20000000, 1), shared_memory.get()); |
| 114 uint64_t sequence_number = |
| 115 clipboard()->GetSequenceNumber(ui::CLIPBOARD_TYPE_COPY_PASTE); |
| 116 CallCommitWrite(); |
| 117 |
| 118 EXPECT_EQ(sequence_number, |
| 119 clipboard()->GetSequenceNumber(ui::CLIPBOARD_TYPE_COPY_PASTE)); |
| 120 } |
| 121 |
| 122 TEST_F(ClipboardMessageFilterTest, InvalidSharedMemoryHandle) { |
| 123 CallWriteImageDirectly(gfx::Size(5, 5), base::SharedMemory::NULLHandle()); |
| 124 uint64_t sequence_number = |
| 125 clipboard()->GetSequenceNumber(ui::CLIPBOARD_TYPE_COPY_PASTE); |
| 126 CallCommitWrite(); |
| 127 |
| 128 EXPECT_EQ(sequence_number, |
| 129 clipboard()->GetSequenceNumber(ui::CLIPBOARD_TYPE_COPY_PASTE)); |
| 130 } |
| 131 |
| 132 } // namespace content |
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