| // Copyright 2015 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <memory> |
| |
| #include "core/fxcrt/fx_memory.h" |
| #include "public/fpdf_text.h" |
| #include "public/fpdfview.h" |
| #include "testing/embedder_test.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "testing/test_support.h" |
| |
| namespace { |
| |
| bool check_unsigned_shorts(const char* expected, |
| const unsigned short* actual, |
| size_t length) { |
| if (length > strlen(expected) + 1) |
| return false; |
| |
| for (size_t i = 0; i < length; ++i) { |
| if (actual[i] != static_cast<unsigned short>(expected[i])) |
| return false; |
| } |
| return true; |
| } |
| |
| } // namespace |
| |
| class FPDFTextEmbeddertest : public EmbedderTest {}; |
| |
| TEST_F(FPDFTextEmbeddertest, Text) { |
| ASSERT_TRUE(OpenDocument("hello_world.pdf")); |
| FPDF_PAGE page = LoadPage(0); |
| ASSERT_TRUE(page); |
| |
| FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
| ASSERT_TRUE(textpage); |
| |
| static const char kExpected[] = "Hello, world!\r\nGoodbye, world!"; |
| unsigned short buffer[128]; |
| memset(buffer, 0xbd, sizeof(buffer)); |
| |
| // Check that edge cases are handled gracefully |
| EXPECT_EQ(0, FPDFText_GetText(textpage, 0, 128, nullptr)); |
| EXPECT_EQ(0, FPDFText_GetText(textpage, -1, 128, buffer)); |
| EXPECT_EQ(0, FPDFText_GetText(textpage, 0, -1, buffer)); |
| EXPECT_EQ(1, FPDFText_GetText(textpage, 0, 0, buffer)); |
| EXPECT_EQ(0, buffer[0]); |
| |
| // Keep going and check the next case. |
| memset(buffer, 0xbd, sizeof(buffer)); |
| EXPECT_EQ(2, FPDFText_GetText(textpage, 0, 1, buffer)); |
| EXPECT_EQ(kExpected[0], buffer[0]); |
| EXPECT_EQ(0, buffer[1]); |
| |
| // Check includes the terminating NUL that is provided. |
| int num_chars = FPDFText_GetText(textpage, 0, 128, buffer); |
| ASSERT_GE(num_chars, 0); |
| EXPECT_EQ(sizeof(kExpected), static_cast<size_t>(num_chars)); |
| EXPECT_TRUE(check_unsigned_shorts(kExpected, buffer, sizeof(kExpected))); |
| |
| // Count does not include the terminating NUL in the string literal. |
| EXPECT_EQ(sizeof(kExpected) - 1, |
| static_cast<size_t>(FPDFText_CountChars(textpage))); |
| for (size_t i = 0; i < sizeof(kExpected) - 1; ++i) { |
| EXPECT_EQ(static_cast<unsigned int>(kExpected[i]), |
| FPDFText_GetUnicode(textpage, i)) |
| << " at " << i; |
| } |
| |
| // Extracting using a buffer that will be completely filled. Small buffer is |
| // 12 elements long, since it will need 2 locations per displayed character in |
| // the expected string, plus 2 more for the terminating character. |
| static const char kSmallExpected[] = "Hello"; |
| unsigned short small_buffer[12]; |
| memset(buffer, 0xbd, sizeof(buffer)); |
| EXPECT_EQ(6, FPDFText_GetText(textpage, 0, 5, small_buffer)); |
| EXPECT_TRUE(check_unsigned_shorts(kSmallExpected, small_buffer, |
| sizeof(kSmallExpected))); |
| |
| EXPECT_EQ(12.0, FPDFText_GetFontSize(textpage, 0)); |
| EXPECT_EQ(16.0, FPDFText_GetFontSize(textpage, 15)); |
| |
| double left = 0.0; |
| double right = 0.0; |
| double bottom = 0.0; |
| double top = 0.0; |
| EXPECT_FALSE(FPDFText_GetCharBox(nullptr, 4, &left, &right, &bottom, &top)); |
| EXPECT_DOUBLE_EQ(0.0, left); |
| EXPECT_DOUBLE_EQ(0.0, right); |
| EXPECT_DOUBLE_EQ(0.0, bottom); |
| EXPECT_DOUBLE_EQ(0.0, top); |
| EXPECT_FALSE(FPDFText_GetCharBox(textpage, -1, &left, &right, &bottom, &top)); |
| EXPECT_DOUBLE_EQ(0.0, left); |
| EXPECT_DOUBLE_EQ(0.0, right); |
| EXPECT_DOUBLE_EQ(0.0, bottom); |
| EXPECT_DOUBLE_EQ(0.0, top); |
| EXPECT_FALSE(FPDFText_GetCharBox(textpage, 55, &left, &right, &bottom, &top)); |
| EXPECT_DOUBLE_EQ(0.0, left); |
| EXPECT_DOUBLE_EQ(0.0, right); |
| EXPECT_DOUBLE_EQ(0.0, bottom); |
| EXPECT_DOUBLE_EQ(0.0, top); |
| |
| EXPECT_TRUE(FPDFText_GetCharBox(textpage, 4, &left, &right, &bottom, &top)); |
| EXPECT_NEAR(41.071, left, 0.001); |
| EXPECT_NEAR(46.243, right, 0.001); |
| EXPECT_NEAR(49.844, bottom, 0.001); |
| EXPECT_NEAR(55.520, top, 0.001); |
| |
| double x = 0.0; |
| double y = 0.0; |
| EXPECT_TRUE(FPDFText_GetCharOrigin(textpage, 4, &x, &y)); |
| EXPECT_NEAR(40.664, x, 0.001); |
| EXPECT_NEAR(50.000, y, 0.001); |
| |
| EXPECT_EQ(4, FPDFText_GetCharIndexAtPos(textpage, 42.0, 50.0, 1.0, 1.0)); |
| EXPECT_EQ(-1, FPDFText_GetCharIndexAtPos(textpage, 0.0, 0.0, 1.0, 1.0)); |
| EXPECT_EQ(-1, FPDFText_GetCharIndexAtPos(textpage, 199.0, 199.0, 1.0, 1.0)); |
| |
| // Test out of range indicies. |
| EXPECT_EQ(-1, |
| FPDFText_GetCharIndexAtPos(textpage, 42.0, 10000000.0, 1.0, 1.0)); |
| EXPECT_EQ(-1, FPDFText_GetCharIndexAtPos(textpage, -1.0, 50.0, 1.0, 1.0)); |
| |
| // Count does not include the terminating NUL in the string literal. |
| EXPECT_EQ(2, FPDFText_CountRects(textpage, 0, sizeof(kExpected) - 1)); |
| |
| left = 0.0; |
| right = 0.0; |
| bottom = 0.0; |
| top = 0.0; |
| EXPECT_TRUE(FPDFText_GetRect(textpage, 1, &left, &top, &right, &bottom)); |
| EXPECT_NEAR(20.847, left, 0.001); |
| EXPECT_NEAR(135.167, right, 0.001); |
| EXPECT_NEAR(96.655, bottom, 0.001); |
| EXPECT_NEAR(116.000, top, 0.001); |
| |
| // Test out of range indicies set outputs to (0.0, 0.0, 0.0, 0.0). |
| left = -1.0; |
| right = -1.0; |
| bottom = -1.0; |
| top = -1.0; |
| EXPECT_FALSE(FPDFText_GetRect(textpage, -1, &left, &top, &right, &bottom)); |
| EXPECT_EQ(0.0, left); |
| EXPECT_EQ(0.0, right); |
| EXPECT_EQ(0.0, bottom); |
| EXPECT_EQ(0.0, top); |
| |
| left = -2.0; |
| right = -2.0; |
| bottom = -2.0; |
| top = -2.0; |
| EXPECT_FALSE(FPDFText_GetRect(textpage, 2, &left, &top, &right, &bottom)); |
| EXPECT_EQ(0.0, left); |
| EXPECT_EQ(0.0, right); |
| EXPECT_EQ(0.0, bottom); |
| EXPECT_EQ(0.0, top); |
| |
| EXPECT_EQ(9, FPDFText_GetBoundedText(textpage, 41.0, 56.0, 82.0, 48.0, 0, 0)); |
| |
| // Extract starting at character 4 as above. |
| memset(buffer, 0xbd, sizeof(buffer)); |
| EXPECT_EQ( |
| 1, FPDFText_GetBoundedText(textpage, 41.0, 56.0, 82.0, 48.0, buffer, 1)); |
| EXPECT_TRUE(check_unsigned_shorts(kExpected + 4, buffer, 1)); |
| EXPECT_EQ(0xbdbd, buffer[1]); |
| |
| memset(buffer, 0xbd, sizeof(buffer)); |
| EXPECT_EQ( |
| 9, FPDFText_GetBoundedText(textpage, 41.0, 56.0, 82.0, 48.0, buffer, 9)); |
| EXPECT_TRUE(check_unsigned_shorts(kExpected + 4, buffer, 9)); |
| EXPECT_EQ(0xbdbd, buffer[9]); |
| |
| memset(buffer, 0xbd, sizeof(buffer)); |
| EXPECT_EQ(10, FPDFText_GetBoundedText(textpage, 41.0, 56.0, 82.0, 48.0, |
| buffer, 128)); |
| EXPECT_TRUE(check_unsigned_shorts(kExpected + 4, buffer, 9)); |
| EXPECT_EQ(0u, buffer[9]); |
| EXPECT_EQ(0xbdbd, buffer[10]); |
| |
| FPDFText_ClosePage(textpage); |
| UnloadPage(page); |
| } |
| |
| TEST_F(FPDFTextEmbeddertest, TextSearch) { |
| ASSERT_TRUE(OpenDocument("hello_world.pdf")); |
| FPDF_PAGE page = LoadPage(0); |
| ASSERT_TRUE(page); |
| |
| FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
| ASSERT_TRUE(textpage); |
| |
| std::unique_ptr<unsigned short, pdfium::FreeDeleter> nope = |
| GetFPDFWideString(L"nope"); |
| std::unique_ptr<unsigned short, pdfium::FreeDeleter> world = |
| GetFPDFWideString(L"world"); |
| std::unique_ptr<unsigned short, pdfium::FreeDeleter> world_caps = |
| GetFPDFWideString(L"WORLD"); |
| std::unique_ptr<unsigned short, pdfium::FreeDeleter> world_substr = |
| GetFPDFWideString(L"orld"); |
| |
| // No occurences of "nope" in test page. |
| FPDF_SCHHANDLE search = FPDFText_FindStart(textpage, nope.get(), 0, 0); |
| EXPECT_TRUE(search); |
| EXPECT_EQ(0, FPDFText_GetSchResultIndex(search)); |
| EXPECT_EQ(0, FPDFText_GetSchCount(search)); |
| |
| // Advancing finds nothing. |
| EXPECT_FALSE(FPDFText_FindNext(search)); |
| EXPECT_EQ(0, FPDFText_GetSchResultIndex(search)); |
| EXPECT_EQ(0, FPDFText_GetSchCount(search)); |
| |
| // Retreating finds nothing. |
| EXPECT_FALSE(FPDFText_FindPrev(search)); |
| EXPECT_EQ(0, FPDFText_GetSchResultIndex(search)); |
| EXPECT_EQ(0, FPDFText_GetSchCount(search)); |
| FPDFText_FindClose(search); |
| |
| // Two occurences of "world" in test page. |
| search = FPDFText_FindStart(textpage, world.get(), 0, 2); |
| EXPECT_TRUE(search); |
| |
| // Remains not found until advanced. |
| EXPECT_EQ(0, FPDFText_GetSchResultIndex(search)); |
| EXPECT_EQ(0, FPDFText_GetSchCount(search)); |
| |
| // First occurence of "world" in this test page. |
| EXPECT_TRUE(FPDFText_FindNext(search)); |
| EXPECT_EQ(7, FPDFText_GetSchResultIndex(search)); |
| EXPECT_EQ(5, FPDFText_GetSchCount(search)); |
| |
| // Last occurence of "world" in this test page. |
| EXPECT_TRUE(FPDFText_FindNext(search)); |
| EXPECT_EQ(24, FPDFText_GetSchResultIndex(search)); |
| EXPECT_EQ(5, FPDFText_GetSchCount(search)); |
| |
| // Found position unchanged when fails to advance. |
| EXPECT_FALSE(FPDFText_FindNext(search)); |
| EXPECT_EQ(24, FPDFText_GetSchResultIndex(search)); |
| EXPECT_EQ(5, FPDFText_GetSchCount(search)); |
| |
| // Back to first occurence. |
| EXPECT_TRUE(FPDFText_FindPrev(search)); |
| EXPECT_EQ(7, FPDFText_GetSchResultIndex(search)); |
| EXPECT_EQ(5, FPDFText_GetSchCount(search)); |
| |
| // Found position unchanged when fails to retreat. |
| EXPECT_FALSE(FPDFText_FindPrev(search)); |
| EXPECT_EQ(7, FPDFText_GetSchResultIndex(search)); |
| EXPECT_EQ(5, FPDFText_GetSchCount(search)); |
| FPDFText_FindClose(search); |
| |
| // Exact search unaffected by case sensitiity and whole word flags. |
| search = FPDFText_FindStart(textpage, world.get(), |
| FPDF_MATCHCASE | FPDF_MATCHWHOLEWORD, 0); |
| EXPECT_TRUE(search); |
| EXPECT_TRUE(FPDFText_FindNext(search)); |
| EXPECT_EQ(7, FPDFText_GetSchResultIndex(search)); |
| EXPECT_EQ(5, FPDFText_GetSchCount(search)); |
| FPDFText_FindClose(search); |
| |
| // Default is case-insensitive, so matching agaist caps works. |
| search = FPDFText_FindStart(textpage, world_caps.get(), 0, 0); |
| EXPECT_TRUE(search); |
| EXPECT_TRUE(FPDFText_FindNext(search)); |
| EXPECT_EQ(7, FPDFText_GetSchResultIndex(search)); |
| EXPECT_EQ(5, FPDFText_GetSchCount(search)); |
| FPDFText_FindClose(search); |
| |
| // But can be made case sensitive, in which case this fails. |
| search = FPDFText_FindStart(textpage, world_caps.get(), FPDF_MATCHCASE, 0); |
| EXPECT_FALSE(FPDFText_FindNext(search)); |
| EXPECT_EQ(0, FPDFText_GetSchResultIndex(search)); |
| EXPECT_EQ(0, FPDFText_GetSchCount(search)); |
| FPDFText_FindClose(search); |
| |
| // Default is match anywhere within word, so matching substirng works. |
| search = FPDFText_FindStart(textpage, world_substr.get(), 0, 0); |
| EXPECT_TRUE(FPDFText_FindNext(search)); |
| EXPECT_EQ(8, FPDFText_GetSchResultIndex(search)); |
| EXPECT_EQ(4, FPDFText_GetSchCount(search)); |
| FPDFText_FindClose(search); |
| |
| // But can be made to mach word boundaries, in which case this fails. |
| search = |
| FPDFText_FindStart(textpage, world_substr.get(), FPDF_MATCHWHOLEWORD, 0); |
| EXPECT_FALSE(FPDFText_FindNext(search)); |
| // TODO(tsepez): investigate strange index/count values in this state. |
| FPDFText_FindClose(search); |
| |
| FPDFText_ClosePage(textpage); |
| UnloadPage(page); |
| } |
| |
| // Test that the page has characters despite a bad stream length. |
| TEST_F(FPDFTextEmbeddertest, StreamLengthPastEndOfFile) { |
| ASSERT_TRUE(OpenDocument("bug_57.pdf")); |
| FPDF_PAGE page = LoadPage(0); |
| ASSERT_TRUE(page); |
| |
| FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
| ASSERT_TRUE(textpage); |
| EXPECT_EQ(13, FPDFText_CountChars(textpage)); |
| |
| FPDFText_ClosePage(textpage); |
| UnloadPage(page); |
| } |
| |
| TEST_F(FPDFTextEmbeddertest, WebLinks) { |
| ASSERT_TRUE(OpenDocument("weblinks.pdf")); |
| FPDF_PAGE page = LoadPage(0); |
| ASSERT_TRUE(page); |
| |
| FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
| ASSERT_TRUE(textpage); |
| |
| FPDF_PAGELINK pagelink = FPDFLink_LoadWebLinks(textpage); |
| EXPECT_TRUE(pagelink); |
| |
| // Page contains two HTTP-style URLs. |
| EXPECT_EQ(2, FPDFLink_CountWebLinks(pagelink)); |
| |
| // Only a terminating NUL required for bogus links. |
| EXPECT_EQ(1, FPDFLink_GetURL(pagelink, 2, nullptr, 0)); |
| EXPECT_EQ(1, FPDFLink_GetURL(pagelink, 1400, nullptr, 0)); |
| EXPECT_EQ(1, FPDFLink_GetURL(pagelink, -1, nullptr, 0)); |
| |
| // Query the number of characters required for each link (incl NUL). |
| EXPECT_EQ(25, FPDFLink_GetURL(pagelink, 0, nullptr, 0)); |
| EXPECT_EQ(26, FPDFLink_GetURL(pagelink, 1, nullptr, 0)); |
| |
| static const char expected_url[] = "http://example.com?q=foo"; |
| static const size_t expected_len = sizeof(expected_url); |
| unsigned short buffer[128]; |
| |
| // Retrieve a link with too small a buffer. Buffer will not be |
| // NUL-terminated, but must not be modified past indicated length, |
| // so pre-fill with a pattern to check write bounds. |
| memset(buffer, 0xbd, sizeof(buffer)); |
| EXPECT_EQ(1, FPDFLink_GetURL(pagelink, 0, buffer, 1)); |
| EXPECT_TRUE(check_unsigned_shorts(expected_url, buffer, 1)); |
| EXPECT_EQ(0xbdbd, buffer[1]); |
| |
| // Check buffer that doesn't have space for a terminating NUL. |
| memset(buffer, 0xbd, sizeof(buffer)); |
| EXPECT_EQ(static_cast<int>(expected_len - 1), |
| FPDFLink_GetURL(pagelink, 0, buffer, expected_len - 1)); |
| EXPECT_TRUE(check_unsigned_shorts(expected_url, buffer, expected_len - 1)); |
| EXPECT_EQ(0xbdbd, buffer[expected_len - 1]); |
| |
| // Retreive link with exactly-sized buffer. |
| memset(buffer, 0xbd, sizeof(buffer)); |
| EXPECT_EQ(static_cast<int>(expected_len), |
| FPDFLink_GetURL(pagelink, 0, buffer, expected_len)); |
| EXPECT_TRUE(check_unsigned_shorts(expected_url, buffer, expected_len)); |
| EXPECT_EQ(0u, buffer[expected_len - 1]); |
| EXPECT_EQ(0xbdbd, buffer[expected_len]); |
| |
| // Retreive link with ample-sized-buffer. |
| memset(buffer, 0xbd, sizeof(buffer)); |
| EXPECT_EQ(static_cast<int>(expected_len), |
| FPDFLink_GetURL(pagelink, 0, buffer, 128)); |
| EXPECT_TRUE(check_unsigned_shorts(expected_url, buffer, expected_len)); |
| EXPECT_EQ(0u, buffer[expected_len - 1]); |
| EXPECT_EQ(0xbdbd, buffer[expected_len]); |
| |
| // Each link rendered in a single rect in this test page. |
| EXPECT_EQ(1, FPDFLink_CountRects(pagelink, 0)); |
| EXPECT_EQ(1, FPDFLink_CountRects(pagelink, 1)); |
| |
| // Each link rendered in a single rect in this test page. |
| EXPECT_EQ(0, FPDFLink_CountRects(pagelink, -1)); |
| EXPECT_EQ(0, FPDFLink_CountRects(pagelink, 2)); |
| EXPECT_EQ(0, FPDFLink_CountRects(pagelink, 10000)); |
| |
| // Check boundary of valid link index with valid rect index. |
| double left = 0.0; |
| double right = 0.0; |
| double top = 0.0; |
| double bottom = 0.0; |
| EXPECT_TRUE(FPDFLink_GetRect(pagelink, 0, 0, &left, &top, &right, &bottom)); |
| EXPECT_NEAR(50.791, left, 0.001); |
| EXPECT_NEAR(187.963, right, 0.001); |
| EXPECT_NEAR(97.624, bottom, 0.001); |
| EXPECT_NEAR(108.736, top, 0.001); |
| |
| // Check that valid link with invalid rect index leaves parameters unchanged. |
| left = -1.0; |
| right = -1.0; |
| top = -1.0; |
| bottom = -1.0; |
| EXPECT_FALSE(FPDFLink_GetRect(pagelink, 0, 1, &left, &top, &right, &bottom)); |
| EXPECT_EQ(-1.0, left); |
| EXPECT_EQ(-1.0, right); |
| EXPECT_EQ(-1.0, bottom); |
| EXPECT_EQ(-1.0, top); |
| |
| // Check that invalid link index leaves parameters unchanged. |
| left = -2.0; |
| right = -2.0; |
| top = -2.0; |
| bottom = -2.0; |
| EXPECT_FALSE(FPDFLink_GetRect(pagelink, -1, 0, &left, &top, &right, &bottom)); |
| EXPECT_EQ(-2.0, left); |
| EXPECT_EQ(-2.0, right); |
| EXPECT_EQ(-2.0, bottom); |
| EXPECT_EQ(-2.0, top); |
| |
| FPDFLink_CloseWebLinks(pagelink); |
| FPDFText_ClosePage(textpage); |
| UnloadPage(page); |
| } |
| |
| TEST_F(FPDFTextEmbeddertest, WebLinksAcrossLines) { |
| ASSERT_TRUE(OpenDocument("weblinks_across_lines.pdf")); |
| FPDF_PAGE page = LoadPage(0); |
| ASSERT_TRUE(page); |
| |
| FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
| ASSERT_TRUE(textpage); |
| |
| FPDF_PAGELINK pagelink = FPDFLink_LoadWebLinks(textpage); |
| EXPECT_TRUE(pagelink); |
| |
| static const char* const kExpectedUrls[] = { |
| "http://example.com", // from "http://www.example.com?\r\nfoo" |
| "http://example.com/", // from "http://www.example.com/\r\nfoo" |
| "http://example.com/test-foo", // from "http://example.com/test-\r\nfoo" |
| "http://abc.com/test-foo", // from "http://abc.com/test-\r\n\r\nfoo" |
| // Next two links from "http://www.example.com/\r\nhttp://www.abc.com/" |
| "http://example.com/", "http://www.abc.com", |
| }; |
| static const int kNumLinks = static_cast<int>(FX_ArraySize(kExpectedUrls)); |
| |
| EXPECT_EQ(kNumLinks, FPDFLink_CountWebLinks(pagelink)); |
| |
| unsigned short buffer[128]; |
| for (int i = 0; i < kNumLinks; i++) { |
| const size_t expected_len = strlen(kExpectedUrls[i]) + 1; |
| memset(buffer, 0, FX_ArraySize(buffer)); |
| EXPECT_EQ(static_cast<int>(expected_len), |
| FPDFLink_GetURL(pagelink, i, nullptr, 0)); |
| EXPECT_EQ(static_cast<int>(expected_len), |
| FPDFLink_GetURL(pagelink, i, buffer, FX_ArraySize(buffer))); |
| EXPECT_TRUE(check_unsigned_shorts(kExpectedUrls[i], buffer, expected_len)); |
| } |
| |
| FPDFLink_CloseWebLinks(pagelink); |
| FPDFText_ClosePage(textpage); |
| UnloadPage(page); |
| } |
| |
| TEST_F(FPDFTextEmbeddertest, WebLinksAcrossLinesBug) { |
| ASSERT_TRUE(OpenDocument("bug_650.pdf")); |
| FPDF_PAGE page = LoadPage(0); |
| ASSERT_TRUE(page); |
| |
| FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
| ASSERT_TRUE(textpage); |
| |
| FPDF_PAGELINK pagelink = FPDFLink_LoadWebLinks(textpage); |
| EXPECT_TRUE(pagelink); |
| |
| EXPECT_EQ(2, FPDFLink_CountWebLinks(pagelink)); |
| unsigned short buffer[128] = {0}; |
| static const char kExpectedUrl[] = |
| "http://tutorial45.com/learn-autocad-basics-day-166/"; |
| static const int kUrlSize = static_cast<int>(sizeof(kExpectedUrl)); |
| |
| EXPECT_EQ(kUrlSize, FPDFLink_GetURL(pagelink, 1, nullptr, 0)); |
| EXPECT_EQ(kUrlSize, |
| FPDFLink_GetURL(pagelink, 1, buffer, FX_ArraySize(buffer))); |
| EXPECT_TRUE(check_unsigned_shorts(kExpectedUrl, buffer, kUrlSize)); |
| |
| FPDFLink_CloseWebLinks(pagelink); |
| FPDFText_ClosePage(textpage); |
| UnloadPage(page); |
| } |
| |
| TEST_F(FPDFTextEmbeddertest, GetFontSize) { |
| ASSERT_TRUE(OpenDocument("hello_world.pdf")); |
| FPDF_PAGE page = LoadPage(0); |
| ASSERT_TRUE(page); |
| |
| FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
| ASSERT_TRUE(textpage); |
| |
| const double kExpectedFontsSizes[] = {12, 12, 12, 12, 12, 12, 12, 12, 12, 12, |
| 12, 12, 12, 1, 1, 16, 16, 16, 16, 16, |
| 16, 16, 16, 16, 16, 16, 16, 16, 16, 16}; |
| |
| int count = FPDFText_CountChars(textpage); |
| ASSERT_EQ(FX_ArraySize(kExpectedFontsSizes), static_cast<size_t>(count)); |
| for (int i = 0; i < count; ++i) |
| EXPECT_EQ(kExpectedFontsSizes[i], FPDFText_GetFontSize(textpage, i)) << i; |
| |
| FPDFText_ClosePage(textpage); |
| UnloadPage(page); |
| } |
| |
| TEST_F(FPDFTextEmbeddertest, ToUnicode) { |
| ASSERT_TRUE(OpenDocument("bug_583.pdf")); |
| FPDF_PAGE page = LoadPage(0); |
| ASSERT_TRUE(page); |
| |
| FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
| ASSERT_TRUE(textpage); |
| |
| ASSERT_EQ(1, FPDFText_CountChars(textpage)); |
| EXPECT_EQ(static_cast<unsigned int>(0), FPDFText_GetUnicode(textpage, 0)); |
| |
| FPDFText_ClosePage(textpage); |
| UnloadPage(page); |
| } |
| |
| TEST_F(FPDFTextEmbeddertest, Bug_921) { |
| ASSERT_TRUE(OpenDocument("bug_921.pdf")); |
| FPDF_PAGE page = LoadPage(0); |
| ASSERT_TRUE(page); |
| |
| FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
| ASSERT_TRUE(textpage); |
| |
| static constexpr unsigned int kData[] = { |
| 1095, 1077, 1083, 1086, 1074, 1077, 1095, 1077, 1089, 1082, 1086, 1077, |
| 32, 1089, 1090, 1088, 1072, 1076, 1072, 1085, 1080, 1077, 46, 32}; |
| static constexpr int kStartIndex = 238; |
| |
| ASSERT_EQ(268, FPDFText_CountChars(textpage)); |
| for (size_t i = 0; i < FX_ArraySize(kData); ++i) |
| EXPECT_EQ(kData[i], FPDFText_GetUnicode(textpage, kStartIndex + i)); |
| |
| unsigned short buffer[FX_ArraySize(kData) + 1]; |
| memset(buffer, 0xbd, sizeof(buffer)); |
| int count = |
| FPDFText_GetText(textpage, kStartIndex, FX_ArraySize(kData), buffer); |
| ASSERT_GT(count, 0); |
| ASSERT_EQ(FX_ArraySize(kData) + 1, static_cast<size_t>(count)); |
| for (size_t i = 0; i < FX_ArraySize(kData); ++i) |
| EXPECT_EQ(kData[i], buffer[i]); |
| EXPECT_EQ(0, buffer[FX_ArraySize(kData)]); |
| |
| FPDFText_ClosePage(textpage); |
| UnloadPage(page); |
| } |
| |
| TEST_F(FPDFTextEmbeddertest, GetTextWithHyphen) { |
| ASSERT_TRUE(OpenDocument("bug_781804.pdf")); |
| FPDF_PAGE page = LoadPage(0); |
| ASSERT_TRUE(page); |
| |
| FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
| ASSERT_TRUE(textpage); |
| |
| // Check that soft hyphens are not included |
| // Expecting 'Veritaserum', except there is a \uFFFE where the hyphen was in |
| // the original text. This is a weird thing that Adobe does, which we |
| // replicate. |
| constexpr unsigned short soft_expected[] = { |
| 0x0056, 0x0065, 0x0072, 0x0069, 0x0074, 0x0061, 0xfffe, |
| 0x0073, 0x0065, 0x0072, 0x0075, 0x006D, 0x0000}; |
| { |
| constexpr int count = FX_ArraySize(soft_expected) - 1; |
| unsigned short buffer[FX_ArraySize(soft_expected)]; |
| memset(buffer, 0, sizeof(buffer)); |
| |
| EXPECT_EQ(count + 1, FPDFText_GetText(textpage, 0, count, buffer)); |
| for (int i = 0; i < count; i++) |
| EXPECT_EQ(soft_expected[i], buffer[i]); |
| } |
| |
| // Check that hard hyphens are included |
| { |
| // There isn't the \0 in the actual doc, but there is a \r\n, so need to |
| // add 1 to get aligned. |
| constexpr size_t offset = FX_ArraySize(soft_expected) + 1; |
| // Expecting 'User-\r\ngenerated', the - is a unicode character, so cannnot |
| // store in a char[]. |
| constexpr unsigned short hard_expected[] = { |
| 0x0055, 0x0073, 0x0065, 0x0072, 0x2010, 0x000d, 0x000a, 0x0067, 0x0065, |
| 0x006e, 0x0065, 0x0072, 0x0061, 0x0074, 0x0065, 0x0064, 0x0000}; |
| constexpr int count = FX_ArraySize(hard_expected) - 1; |
| unsigned short buffer[FX_ArraySize(hard_expected)]; |
| |
| EXPECT_EQ(count + 1, FPDFText_GetText(textpage, offset, count, buffer)); |
| for (int i = 0; i < count; i++) |
| EXPECT_EQ(hard_expected[i], buffer[i]); |
| } |
| |
| FPDFText_ClosePage(textpage); |
| UnloadPage(page); |
| } |
| |
| TEST_F(FPDFTextEmbeddertest, bug_782596) { |
| // If there is a regression in this test, it will only fail under ASAN |
| ASSERT_TRUE(OpenDocument("bug_782596.pdf")); |
| FPDF_PAGE page = LoadPage(0); |
| ASSERT_TRUE(page); |
| FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
| ASSERT_TRUE(textpage); |
| FPDFText_ClosePage(textpage); |
| UnloadPage(page); |
| } |
| |
| TEST_F(FPDFTextEmbeddertest, ControlCharacters) { |
| ASSERT_TRUE(OpenDocument("control_characters.pdf")); |
| FPDF_PAGE page = LoadPage(0); |
| ASSERT_TRUE(page); |
| |
| FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
| ASSERT_TRUE(textpage); |
| |
| // Should not include the control characters in the output |
| static const char expected[] = "Hello, world!\r\nGoodbye, world!"; |
| unsigned short buffer[128]; |
| memset(buffer, 0xbd, sizeof(buffer)); |
| int num_chars = FPDFText_GetText(textpage, 0, 128, buffer); |
| |
| ASSERT_GE(num_chars, 0); |
| EXPECT_EQ(sizeof(expected), static_cast<size_t>(num_chars)); |
| EXPECT_TRUE(check_unsigned_shorts(expected, buffer, sizeof(expected))); |
| |
| // Attempting to get a chunk of text after the control characters |
| static const char expected_substring[] = "Goodbye, world!"; |
| // Offset is the length of 'Hello, world!\r\n' + 2 control characters in the |
| // original stream |
| static const int offset = 17; |
| memset(buffer, 0xbd, sizeof(buffer)); |
| num_chars = FPDFText_GetText(textpage, offset, 128, buffer); |
| |
| ASSERT_GE(num_chars, 0); |
| EXPECT_EQ(sizeof(expected_substring), static_cast<size_t>(num_chars)); |
| EXPECT_TRUE(check_unsigned_shorts(expected_substring, buffer, |
| sizeof(expected_substring))); |
| |
| FPDFText_ClosePage(textpage); |
| UnloadPage(page); |
| } |
| |
| // Testing that hyphen makers (0x0002) are replacing hard hyphens when |
| // the word contains non-ASCII characters. |
| TEST_F(FPDFTextEmbeddertest, bug_1029) { |
| ASSERT_TRUE(OpenDocument("bug_1029.pdf")); |
| FPDF_PAGE page = LoadPage(0); |
| ASSERT_TRUE(page); |
| |
| FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
| ASSERT_TRUE(textpage); |
| |
| constexpr int page_range_offset = 171; |
| constexpr int page_range_length = 56; |
| |
| // This text is: |
| // 'METADATA table. When the split has committed, it noti' followed |
| // by a 'soft hyphen' (0x0002) and then 'fi'. |
| // |
| // The original text has a fi ligature, but that is broken up into |
| // two characters when the PDF is processed. |
| constexpr unsigned int expected[] = { |
| 0x004d, 0x0045, 0x0054, 0x0041, 0x0044, 0x0041, 0x0054, 0x0041, |
| 0x0020, 0x0074, 0x0061, 0x0062, 0x006c, 0x0065, 0x002e, 0x0020, |
| 0x0057, 0x0068, 0x0065, 0x006e, 0x0020, 0x0074, 0x0068, 0x0065, |
| 0x0020, 0x0073, 0x0070, 0x006c, 0x0069, 0x0074, 0x0020, 0x0068, |
| 0x0061, 0x0073, 0x0020, 0x0063, 0x006f, 0x006d, 0x006d, 0x0069, |
| 0x0074, 0x0074, 0x0065, 0x0064, 0x002c, 0x0020, 0x0069, 0x0074, |
| 0x0020, 0x006e, 0x006f, 0x0074, 0x0069, 0x0002, 0x0066, 0x0069}; |
| static_assert(page_range_length == FX_ArraySize(expected), |
| "Expected should be the same size as the range being " |
| "extracted from page."); |
| EXPECT_LT(page_range_offset + page_range_length, |
| FPDFText_CountChars(textpage)); |
| |
| for (int i = 0; i < page_range_length; ++i) { |
| EXPECT_EQ(expected[i], |
| FPDFText_GetUnicode(textpage, page_range_offset + i)); |
| } |
| |
| FPDFText_ClosePage(textpage); |
| UnloadPage(page); |
| } |
| |
| TEST_F(FPDFTextEmbeddertest, CountRects) { |
| ASSERT_TRUE(OpenDocument("hello_world.pdf")); |
| FPDF_PAGE page = LoadPage(0); |
| ASSERT_TRUE(page); |
| |
| FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page); |
| ASSERT_TRUE(textpage); |
| |
| // Sanity check hello_world.pdf. |
| // |num_chars| check includes the terminating NUL that is provided. |
| static const char kExpected[] = "Hello, world!\r\nGoodbye, world!"; |
| { |
| unsigned short buffer[128]; |
| int num_chars = FPDFText_GetText(textpage, 0, 128, buffer); |
| ASSERT_GE(num_chars, 0); |
| EXPECT_EQ(sizeof(kExpected), static_cast<size_t>(num_chars)); |
| EXPECT_TRUE(check_unsigned_shorts(kExpected, buffer, sizeof(kExpected))); |
| } |
| |
| // Now test FPDFText_CountRects(). |
| static const int kHelloWorldEnd = strlen("Hello, world!"); |
| static const int kGoodbyeWorldStart = kHelloWorldEnd + 2; // "\r\n" |
| for (int start = 0; start < kHelloWorldEnd; ++start) { |
| // Always grab some part of "hello world" and some part of "goodbye world" |
| // Since -1 means "all". |
| EXPECT_EQ(2, FPDFText_CountRects(textpage, start, -1)); |
| |
| // No characters always means 0 rects. |
| EXPECT_EQ(0, FPDFText_CountRects(textpage, start, 0)); |
| |
| // 1 character stays within "hello world" |
| EXPECT_EQ(1, FPDFText_CountRects(textpage, start, 1)); |
| |
| // When |start| is 0, Having |kGoodbyeWorldStart| char count does not reach |
| // "goodbye world". |
| int expected_value = start ? 2 : 1; |
| EXPECT_EQ(expected_value, |
| FPDFText_CountRects(textpage, start, kGoodbyeWorldStart)); |
| |
| // Extremely large character count will always return 2 rects because |
| // |start| starts inside "hello world". |
| EXPECT_EQ(2, FPDFText_CountRects(textpage, start, 500)); |
| } |
| |
| // Now test negative counts. |
| for (int start = 0; start < kHelloWorldEnd; ++start) { |
| EXPECT_EQ(2, FPDFText_CountRects(textpage, start, -100)); |
| EXPECT_EQ(2, FPDFText_CountRects(textpage, start, -2)); |
| } |
| |
| // Now test larger start values. |
| const int kExpectedLength = strlen(kExpected); |
| for (int start = kGoodbyeWorldStart + 1; start < kExpectedLength; ++start) { |
| EXPECT_EQ(1, FPDFText_CountRects(textpage, start, -1)); |
| EXPECT_EQ(0, FPDFText_CountRects(textpage, start, 0)); |
| EXPECT_EQ(1, FPDFText_CountRects(textpage, start, 1)); |
| EXPECT_EQ(1, FPDFText_CountRects(textpage, start, 2)); |
| EXPECT_EQ(1, FPDFText_CountRects(textpage, start, 500)); |
| } |
| |
| // Now test start values that starts beyond the end of the text. |
| for (int start = kExpectedLength; start < 100; ++start) { |
| EXPECT_EQ(0, FPDFText_CountRects(textpage, start, -1)); |
| EXPECT_EQ(0, FPDFText_CountRects(textpage, start, 0)); |
| EXPECT_EQ(0, FPDFText_CountRects(textpage, start, 1)); |
| EXPECT_EQ(0, FPDFText_CountRects(textpage, start, 2)); |
| EXPECT_EQ(0, FPDFText_CountRects(textpage, start, 500)); |
| } |
| |
| FPDFText_ClosePage(textpage); |
| UnloadPage(page); |
| } |