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-rw-r--r--BUILD.gn1
-rw-r--r--core/include/fpdfapi/fpdf_parser.h6
-rw-r--r--core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_unittest.cpp170
-rw-r--r--pdfium.gyp1
4 files changed, 176 insertions, 2 deletions
diff --git a/BUILD.gn b/BUILD.gn
index 511065d3cd..53d234a94d 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -718,6 +718,7 @@ test("pdfium_unittests") {
"core/src/fpdfapi/fpdf_font/fpdf_font_unittest.cpp",
"core/src/fpdfapi/fpdf_page/fpdf_page_parser_old_unittest.cpp",
"core/src/fpdfapi/fpdf_parser/fpdf_parser_decode_unittest.cpp",
+ "core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_unittest.cpp",
"core/src/fxcodec/codec/fx_codec_jpx_unittest.cpp",
"core/src/fxcrt/fx_basic_bstring_unittest.cpp",
"core/src/fxcrt/fx_basic_memmgr_unittest.cpp",
diff --git a/core/include/fpdfapi/fpdf_parser.h b/core/include/fpdfapi/fpdf_parser.h
index 6fec26d687..b7684e530a 100644
--- a/core/include/fpdfapi/fpdf_parser.h
+++ b/core/include/fpdfapi/fpdf_parser.h
@@ -299,6 +299,10 @@ class CPDF_SyntaxParser {
CFX_ByteString GetNextWord(FX_BOOL& bIsNumber);
protected:
+ friend class CPDF_Parser;
+ friend class CPDF_DataAvail;
+ friend class fpdf_parser_parser_ReadHexString_Test;
+
static const int kParserMaxRecursionDepth = 64;
static int s_CurrentRecursionDepth;
@@ -352,8 +356,6 @@ class CPDF_SyntaxParser {
FX_BOOL m_bIsNumber;
FX_FILESIZE m_dwWordPos;
- friend class CPDF_Parser;
- friend class CPDF_DataAvail;
};
#define PDFPARSE_TYPEONLY 1
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_unittest.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_unittest.cpp
new file mode 100644
index 0000000000..8063d6fd9c
--- /dev/null
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_unittest.cpp
@@ -0,0 +1,170 @@
+// 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 "testing/gtest/include/gtest/gtest.h"
+
+#include "../../../include/fpdfapi/fpdf_parser.h"
+
+// TODO(thestig) Using unique_ptr with ReleaseDeleter is still not ideal.
+// Come up or wait for something better.
+using ScopedFileStream =
+ nonstd::unique_ptr<IFX_FileStream, ReleaseDeleter<IFX_FileStream>>;
+
+TEST(fpdf_parser_parser, ReadHexString) {
+ {
+ // Empty string.
+ uint8_t data[] = "";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 0, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("", parser.ReadHexString());
+ EXPECT_EQ(0, parser.SavePos());
+ }
+
+ {
+ // Blank string.
+ uint8_t data[] = " ";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 2, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("", parser.ReadHexString());
+ EXPECT_EQ(2, parser.SavePos());
+ }
+
+ {
+ // Skips unknown characters.
+ uint8_t data[] = "z12b";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 4, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\x12\xb0", parser.ReadHexString());
+ EXPECT_EQ(4, parser.SavePos());
+ }
+
+ {
+ // Skips unknown characters.
+ uint8_t data[] = "*<&*#$^&@1";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 10, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\x10", parser.ReadHexString());
+ EXPECT_EQ(10, parser.SavePos());
+ }
+
+ {
+ // Skips unknown characters.
+ uint8_t data[] = "\x80zab";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 4, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\xab", parser.ReadHexString());
+ EXPECT_EQ(4, parser.SavePos());
+ }
+
+ {
+ // Skips unknown characters.
+ uint8_t data[] = "\xffzab";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 4, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\xab", parser.ReadHexString());
+ EXPECT_EQ(4, parser.SavePos());
+ }
+
+ {
+ // Regular conversion.
+ uint8_t data[] = "1A2b>abcd";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 9, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\x1a\x2b", parser.ReadHexString());
+ EXPECT_EQ(5, parser.SavePos());
+ }
+
+ {
+ // Position out of bounds.
+ uint8_t data[] = "12ab>";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 5, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ parser.RestorePos(5);
+ EXPECT_EQ("", parser.ReadHexString());
+
+ parser.RestorePos(6);
+ EXPECT_EQ("", parser.ReadHexString());
+
+ parser.RestorePos(-1);
+ EXPECT_EQ("", parser.ReadHexString());
+
+ parser.RestorePos(0xfffffffffff);
+ EXPECT_EQ("", parser.ReadHexString());
+
+ // Check string still parses when set to 0.
+ parser.RestorePos(0);
+ EXPECT_EQ("\x12\xab", parser.ReadHexString());
+ }
+
+ {
+ // Missing ending >.
+ uint8_t data[] = "1A2b";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 4, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\x1a\x2b", parser.ReadHexString());
+ EXPECT_EQ(4, parser.SavePos());
+ }
+
+ {
+ // Missing ending >.
+ uint8_t data[] = "12abz";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 5, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\x12\xab", parser.ReadHexString());
+ EXPECT_EQ(5, parser.SavePos());
+ }
+
+ {
+ // Uneven number of bytes.
+ uint8_t data[] = "1A2>asdf";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 8, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\x1a\x20", parser.ReadHexString());
+ EXPECT_EQ(4, parser.SavePos());
+ }
+
+ {
+ // Uneven number of bytes.
+ uint8_t data[] = "1A2zasdf";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 8, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\x1a\x2a\xdf", parser.ReadHexString());
+ EXPECT_EQ(8, parser.SavePos());
+ }
+
+ {
+ // Just ending character.
+ uint8_t data[] = ">";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 1, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("", parser.ReadHexString());
+ EXPECT_EQ(1, parser.SavePos());
+ }
+}
diff --git a/pdfium.gyp b/pdfium.gyp
index 8687e76cac..1afadaa672 100644
--- a/pdfium.gyp
+++ b/pdfium.gyp
@@ -718,6 +718,7 @@
'core/src/fpdfapi/fpdf_font/fpdf_font_unittest.cpp',
'core/src/fpdfapi/fpdf_page/fpdf_page_parser_old_unittest.cpp',
'core/src/fpdfapi/fpdf_parser/fpdf_parser_decode_unittest.cpp',
+ 'core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_unittest.cpp',
'core/src/fxcodec/codec/fx_codec_jpx_unittest.cpp',
'core/src/fxcrt/fx_basic_bstring_unittest.cpp',
'core/src/fxcrt/fx_basic_memmgr_unittest.cpp',
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-03 19:31:16 +0000