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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 "core/fpdfapi/fpdf_parser/fpdf_parser_decode.h" | |
6 | |
7 #include <cstring> | |
8 #include <string> | |
9 | |
10 #include "core/fxcrt/fx_basic.h" | |
11 #include "testing/embedder_test.h" | |
12 #include "testing/fx_string_testhelpers.h" | |
13 #include "testing/gtest/include/gtest/gtest.h" | |
14 #include "testing/test_support.h" | |
15 | |
16 class FPDFParserDecodeEmbeddertest : public EmbedderTest {}; | |
17 | |
18 // NOTE: python's zlib.compress() and zlib.decompress() may be useful for | |
19 // external validation of the FlateEncode/FlateDecode test cases. | |
20 | |
21 TEST_F(FPDFParserDecodeEmbeddertest, FlateEncode) { | |
22 pdfium::StrFuncTestData flate_encode_cases[] = { | |
23 STR_IN_OUT_CASE("", "\x78\x9c\x03\x00\x00\x00\x00\x01"), | |
24 STR_IN_OUT_CASE(" ", "\x78\x9c\x53\x00\x00\x00\x21\x00\x21"), | |
25 STR_IN_OUT_CASE("123", "\x78\x9c\x33\x34\x32\x06\x00\01\x2d\x00\x97"), | |
26 STR_IN_OUT_CASE("\x00\xff", "\x78\x9c\x63\xf8\x0f\x00\x01\x01\x01\x00"), | |
27 STR_IN_OUT_CASE( | |
28 "1 0 0 -1 29 763 cm\n0 0 555 735 re\nW n\nq\n0 0 555 734.394 re\n" | |
29 "W n\nq\n0.8009 0 0 0.8009 0 0 cm\n1 1 1 RG 1 1 1 rg\n/G0 gs\n" | |
30 "0 0 693 917 re\nf\nQ\nQ\n", | |
31 "\x78\x9c\x33\x54\x30\x00\x42\x5d\x43\x05\x23\x4b\x05\x73\x33\x63" | |
32 "\x85\xe4\x5c\x2e\x90\x80\xa9\xa9\xa9\x82\xb9\xb1\xa9\x42\x51\x2a" | |
33 "\x57\xb8\x42\x1e\x57\x21\x92\xa0\x89\x9e\xb1\xa5\x09\x92\x84\x9e" | |
34 "\x85\x81\x81\x25\xd8\x14\x24\x26\xd0\x18\x43\x05\x10\x0c\x72\x57" | |
35 "\x80\x30\x8a\xd2\xb9\xf4\xdd\x0d\x14\xd2\x8b\xc1\x46\x99\x59\x1a" | |
36 "\x2b\x58\x1a\x9a\x83\x8c\x49\xe3\x0a\x04\x42\x00\x37\x4c\x1b\x42"), | |
37 }; | |
38 | |
39 for (size_t i = 0; i < FX_ArraySize(flate_encode_cases); ++i) { | |
40 const pdfium::StrFuncTestData& data = flate_encode_cases[i]; | |
41 unsigned char* buf = nullptr; | |
42 unsigned int buf_size; | |
43 EXPECT_TRUE(FlateEncode(data.input, data.input_size, &buf, &buf_size)); | |
44 ASSERT_TRUE(buf); | |
45 EXPECT_EQ(std::string((const char*)data.expected, data.expected_size), | |
46 std::string((const char*)buf, buf_size)) | |
47 << " for case " << i; | |
48 FX_Free(buf); | |
49 } | |
50 } | |
51 | |
52 TEST_F(FPDFParserDecodeEmbeddertest, FlateDecode) { | |
53 pdfium::DecodeTestData flate_decode_cases[] = { | |
54 STR_IN_OUT_CASE("", "", 0), | |
55 STR_IN_OUT_CASE("preposterous nonsense", "", 2), | |
56 STR_IN_OUT_CASE("\x78\x9c\x03\x00\x00\x00\x00\x01", "", 8), | |
57 STR_IN_OUT_CASE("\x78\x9c\x53\x00\x00\x00\x21\x00\x21", " ", 9), | |
58 STR_IN_OUT_CASE("\x78\x9c\x33\x34\x32\x06\x00\01\x2d\x00\x97", "123", 11), | |
59 STR_IN_OUT_CASE("\x78\x9c\x63\xf8\x0f\x00\x01\x01\x01\x00", "\x00\xff", | |
60 10), | |
61 STR_IN_OUT_CASE( | |
62 "\x78\x9c\x33\x54\x30\x00\x42\x5d\x43\x05\x23\x4b\x05\x73\x33\x63" | |
63 "\x85\xe4\x5c\x2e\x90\x80\xa9\xa9\xa9\x82\xb9\xb1\xa9\x42\x51\x2a" | |
64 "\x57\xb8\x42\x1e\x57\x21\x92\xa0\x89\x9e\xb1\xa5\x09\x92\x84\x9e" | |
65 "\x85\x81\x81\x25\xd8\x14\x24\x26\xd0\x18\x43\x05\x10\x0c\x72\x57" | |
66 "\x80\x30\x8a\xd2\xb9\xf4\xdd\x0d\x14\xd2\x8b\xc1\x46\x99\x59\x1a" | |
67 "\x2b\x58\x1a\x9a\x83\x8c\x49\xe3\x0a\x04\x42\x00\x37\x4c\x1b\x42", | |
68 "1 0 0 -1 29 763 cm\n0 0 555 735 re\nW n\nq\n0 0 555 734.394 re\n" | |
69 "W n\nq\n0.8009 0 0 0.8009 0 0 cm\n1 1 1 RG 1 1 1 rg\n/G0 gs\n" | |
70 "0 0 693 917 re\nf\nQ\nQ\n", | |
71 96), | |
72 }; | |
73 | |
74 for (size_t i = 0; i < FX_ArraySize(flate_decode_cases); ++i) { | |
75 const pdfium::DecodeTestData& data = flate_decode_cases[i]; | |
76 unsigned char* result = nullptr; | |
77 unsigned int result_size; | |
78 EXPECT_EQ(data.processed_size, | |
79 FlateDecode(data.input, data.input_size, result, result_size)) | |
80 << " for case " << i; | |
81 ASSERT_TRUE(result); | |
82 EXPECT_EQ(std::string((const char*)data.expected, data.expected_size), | |
83 std::string((const char*)result, result_size)) | |
84 << " for case " << i; | |
85 FX_Free(result); | |
86 } | |
87 } | |
88 | |
89 TEST_F(FPDFParserDecodeEmbeddertest, Bug_552046) { | |
90 // Tests specifying multiple image filters for a stream. Should not cause a | |
91 // crash when rendered. | |
92 EXPECT_TRUE(OpenDocument("bug_552046.pdf")); | |
93 FPDF_PAGE page = LoadPage(0); | |
94 FPDF_BITMAP bitmap = RenderPage(page); | |
95 FPDFBitmap_Destroy(bitmap); | |
96 UnloadPage(page); | |
97 } | |
98 | |
99 TEST_F(FPDFParserDecodeEmbeddertest, Bug_555784) { | |
100 // Tests bad input to the run length decoder that caused a heap overflow. | |
101 // Should not cause a crash when rendered. | |
102 EXPECT_TRUE(OpenDocument("bug_555784.pdf")); | |
103 FPDF_PAGE page = LoadPage(0); | |
104 FPDF_BITMAP bitmap = RenderPage(page); | |
105 FPDFBitmap_Destroy(bitmap); | |
106 UnloadPage(page); | |
107 } | |
108 | |
109 TEST_F(FPDFParserDecodeEmbeddertest, Bug_455199) { | |
110 // Tests object numbers with a value > 01000000. | |
111 // Should open successfully. | |
112 EXPECT_TRUE(OpenDocument("bug_455199.pdf")); | |
113 FPDF_PAGE page = LoadPage(0); | |
114 FPDF_BITMAP bitmap = RenderPage(page); | |
115 FPDFBitmap_Destroy(bitmap); | |
116 UnloadPage(page); | |
117 } | |
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