1 // Copyright 2015 PDFium 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 <limits> 6 #include <string> 7 8 #include "fpdfsdk/src/fpdfview_c_api_test.h" 9 #include "public/fpdfview.h" 10 #include "testing/embedder_test.h" 11 #include "testing/gtest/include/gtest/gtest.h" 12 13 TEST(fpdf, CApiTest) { 14 EXPECT_TRUE(CheckPDFiumCApi()); 15 } 16 17 class FPDFViewEmbeddertest : public EmbedderTest {}; 18 19 TEST_F(FPDFViewEmbeddertest, Document) { 20 EXPECT_TRUE(OpenDocument("about_blank.pdf")); 21 EXPECT_EQ(1, GetPageCount()); 22 EXPECT_EQ(0, GetFirstPageNum()); 23 24 int version; 25 EXPECT_TRUE(FPDF_GetFileVersion(document(), &version)); 26 EXPECT_EQ(14, version); 27 28 EXPECT_EQ(0xFFFFFFFF, FPDF_GetDocPermissions(document())); 29 EXPECT_EQ(-1, FPDF_GetSecurityHandlerRevision(document())); 30 } 31 32 TEST_F(FPDFViewEmbeddertest, Page) { 33 EXPECT_TRUE(OpenDocument("about_blank.pdf")); 34 FPDF_PAGE page = LoadPage(0); 35 EXPECT_NE(nullptr, page); 36 EXPECT_EQ(612.0, FPDF_GetPageWidth(page)); 37 EXPECT_EQ(792.0, FPDF_GetPageHeight(page)); 38 UnloadPage(page); 39 EXPECT_EQ(nullptr, LoadPage(1)); 40 } 41 42 TEST_F(FPDFViewEmbeddertest, ViewerRef) { 43 EXPECT_TRUE(OpenDocument("about_blank.pdf")); 44 EXPECT_TRUE(FPDF_VIEWERREF_GetPrintScaling(document())); 45 EXPECT_EQ(1, FPDF_VIEWERREF_GetNumCopies(document())); 46 EXPECT_EQ(DuplexUndefined, FPDF_VIEWERREF_GetDuplex(document())); 47 } 48 49 TEST_F(FPDFViewEmbeddertest, NamedDests) { 50 EXPECT_TRUE(OpenDocument("named_dests.pdf")); 51 long buffer_size; 52 char fixed_buffer[512]; 53 FPDF_DEST dest; 54 55 // Query the size of the first item. 56 buffer_size = 2000000; // Absurdly large, check not used for this case. 57 dest = FPDF_GetNamedDest(document(), 0, nullptr, &buffer_size); 58 EXPECT_NE(nullptr, dest); 59 EXPECT_EQ(12u, buffer_size); 60 61 // Try to retrieve the first item with too small a buffer. 62 buffer_size = 10; 63 dest = FPDF_GetNamedDest(document(), 0, fixed_buffer, &buffer_size); 64 EXPECT_NE(nullptr, dest); 65 EXPECT_EQ(-1, buffer_size); 66 67 // Try to retrieve the first item with correctly sized buffer. Item is 68 // taken from Dests NameTree in named_dests.pdf. 69 buffer_size = 12; 70 dest = FPDF_GetNamedDest(document(), 0, fixed_buffer, &buffer_size); 71 EXPECT_NE(nullptr, dest); 72 EXPECT_EQ(12u, buffer_size); 73 EXPECT_EQ(std::string("F\0i\0r\0s\0t\0\0\0", 12), 74 std::string(fixed_buffer, buffer_size)); 75 76 // Try to retrieve the second item with ample buffer. Item is taken 77 // from Dests NameTree but has a sub-dictionary in named_dests.pdf. 78 buffer_size = sizeof(fixed_buffer); 79 dest = FPDF_GetNamedDest(document(), 1, fixed_buffer, &buffer_size); 80 EXPECT_NE(nullptr, dest); 81 EXPECT_EQ(10u, buffer_size); 82 EXPECT_EQ(std::string("N\0e\0x\0t\0\0\0", 10), 83 std::string(fixed_buffer, buffer_size)); 84 85 // Try to retrieve third item with ample buffer. Item is taken 86 // from Dests NameTree but has a bad sub-dictionary in named_dests.pdf. 87 // in named_dests.pdf). 88 buffer_size = sizeof(fixed_buffer); 89 dest = FPDF_GetNamedDest(document(), 2, fixed_buffer, &buffer_size); 90 EXPECT_EQ(nullptr, dest); 91 EXPECT_EQ(sizeof(fixed_buffer), buffer_size); // unmodified. 92 93 // Try to retrieve the forth item with ample buffer. Item is taken 94 // from Dests NameTree but has a vale of the wrong type in named_dests.pdf. 95 buffer_size = sizeof(fixed_buffer); 96 dest = FPDF_GetNamedDest(document(), 3, fixed_buffer, &buffer_size); 97 EXPECT_EQ(nullptr, dest); 98 EXPECT_EQ(sizeof(fixed_buffer), buffer_size); // unmodified. 99 100 // Try to retrieve fifth item with ample buffer. Item taken from the 101 // old-style Dests dictionary object in named_dests.pdf. 102 buffer_size = sizeof(fixed_buffer); 103 dest = FPDF_GetNamedDest(document(), 4, fixed_buffer, &buffer_size); 104 EXPECT_NE(nullptr, dest); 105 EXPECT_EQ(30u, buffer_size); 106 EXPECT_EQ(std::string("F\0i\0r\0s\0t\0A\0l\0t\0e\0r\0n\0a\0t\0e\0\0\0", 30), 107 std::string(fixed_buffer, buffer_size)); 108 109 // Try to retrieve sixth item with ample buffer. Item istaken from the 110 // old-style Dests dictionary object but has a sub-dictionary in 111 // named_dests.pdf. 112 buffer_size = sizeof(fixed_buffer); 113 dest = FPDF_GetNamedDest(document(), 5, fixed_buffer, &buffer_size); 114 EXPECT_NE(nullptr, dest); 115 EXPECT_EQ(28u, buffer_size); 116 EXPECT_EQ(std::string("L\0a\0s\0t\0A\0l\0t\0e\0r\0n\0a\0t\0e\0\0\0", 28), 117 std::string(fixed_buffer, buffer_size)); 118 119 // Try to retrieve non-existent item with ample buffer. 120 buffer_size = sizeof(fixed_buffer); 121 dest = FPDF_GetNamedDest(document(), 6, fixed_buffer, &buffer_size); 122 EXPECT_EQ(nullptr, dest); 123 EXPECT_EQ(sizeof(fixed_buffer), buffer_size); // unmodified. 124 125 // Try to underflow/overflow the integer index. 126 buffer_size = sizeof(fixed_buffer); 127 dest = FPDF_GetNamedDest(document(), std::numeric_limits<int>::max(), 128 fixed_buffer, &buffer_size); 129 EXPECT_EQ(nullptr, dest); 130 EXPECT_EQ(sizeof(fixed_buffer), buffer_size); // unmodified. 131 132 buffer_size = sizeof(fixed_buffer); 133 dest = FPDF_GetNamedDest(document(), std::numeric_limits<int>::min(), 134 fixed_buffer, &buffer_size); 135 EXPECT_EQ(nullptr, dest); 136 EXPECT_EQ(sizeof(fixed_buffer), buffer_size); // unmodified. 137 138 buffer_size = sizeof(fixed_buffer); 139 dest = FPDF_GetNamedDest(document(), -1, fixed_buffer, &buffer_size); 140 EXPECT_EQ(nullptr, dest); 141 EXPECT_EQ(sizeof(fixed_buffer), buffer_size); // unmodified. 142 } 143 144 TEST_F(FPDFViewEmbeddertest, NamedDestsByName) { 145 EXPECT_TRUE(OpenDocument("named_dests.pdf")); 146 147 // Null pointer returns NULL. 148 FPDF_DEST dest = FPDF_GetNamedDestByName(document(), nullptr); 149 EXPECT_EQ(nullptr, dest); 150 151 // Empty string returns NULL. 152 dest = FPDF_GetNamedDestByName(document(), ""); 153 EXPECT_EQ(nullptr, dest); 154 155 // Item from Dests NameTree. 156 dest = FPDF_GetNamedDestByName(document(), "First"); 157 EXPECT_NE(nullptr, dest); 158 159 long ignore_len = 0; 160 FPDF_DEST dest_by_index = 161 FPDF_GetNamedDest(document(), 0, nullptr, &ignore_len); 162 EXPECT_EQ(dest_by_index, dest); 163 164 // Item from Dests dictionary. 165 dest = FPDF_GetNamedDestByName(document(), "FirstAlternate"); 166 EXPECT_NE(nullptr, dest); 167 168 ignore_len = 0; 169 dest_by_index = FPDF_GetNamedDest(document(), 4, nullptr, &ignore_len); 170 EXPECT_EQ(dest_by_index, dest); 171 172 // Bad value type for item from Dests NameTree array. 173 dest = FPDF_GetNamedDestByName(document(), "WrongType"); 174 EXPECT_EQ(nullptr, dest); 175 176 // No such destination in either Dest NameTree or dictionary. 177 dest = FPDF_GetNamedDestByName(document(), "Bogus"); 178 EXPECT_EQ(nullptr, dest); 179 } 180 181 // The following tests pass if the document opens without crashing. 182 TEST_F(FPDFViewEmbeddertest, Crasher_113) { 183 EXPECT_TRUE(OpenDocument("bug_113.pdf")); 184 } 185 186 TEST_F(FPDFViewEmbeddertest, Crasher_451830) { 187 // Document is damaged and can't be opened. 188 EXPECT_FALSE(OpenDocument("bug_451830.pdf")); 189 } 190 191 TEST_F(FPDFViewEmbeddertest, Crasher_452455) { 192 EXPECT_TRUE(OpenDocument("bug_452455.pdf")); 193 FPDF_PAGE page = LoadPage(0); 194 EXPECT_NE(nullptr, page); 195 UnloadPage(page); 196 } 197 198 TEST_F(FPDFViewEmbeddertest, Crasher_454695) { 199 // Document is damaged and can't be opened. 200 EXPECT_FALSE(OpenDocument("bug_454695.pdf")); 201 } 202 203 TEST_F(FPDFViewEmbeddertest, Crasher_572871) { 204 EXPECT_TRUE(OpenDocument("bug_572871.pdf")); 205 } 206 207 // The following tests pass if the document opens without infinite looping. 208 TEST_F(FPDFViewEmbeddertest, Hang_298) { 209 EXPECT_FALSE(OpenDocument("bug_298.pdf")); 210 } 211 212 // Test if the document opens without infinite looping. 213 // Previously this test will hang in a loop inside LoadAllCrossRefV4. After 214 // the fix, LoadAllCrossRefV4 will return false after detecting a cross 215 // reference loop. Cross references will be rebuilt successfully. 216 TEST_F(FPDFViewEmbeddertest, CrossRefV4Loop) { 217 EXPECT_TRUE(OpenDocument("bug_xrefv4_loop.pdf")); 218 } 219 220 // The test should pass when circular references to ParseIndirectObject will not 221 // cause infinite loop. 222 TEST_F(FPDFViewEmbeddertest, Hang_343) { 223 EXPECT_FALSE(OpenDocument("bug_343.pdf")); 224 } 225 226 // The test should pass when the absence of 'Contents' field in a signature 227 // dictionary will not cause an infinite loop in CPDF_SyntaxParser::GetObject(). 228 TEST_F(FPDFViewEmbeddertest, Hang_344) { 229 EXPECT_FALSE(OpenDocument("bug_344.pdf")); 230 }
