diff options
| author | Dan Sinclair <dsinclair@chromium.org> | 2017-06-13 15:21:14 -0400 |
|---|---|---|
| committer | Chromium commit bot <commit-bot@chromium.org> | 2017-06-13 19:33:05 +0000 |
| commit | 957480c17682008ae2a14723868fcdcab89b6577 (patch) | |
| tree | cf5f1cb09c4385b7a107d8c8efcc99ea046849f8 /testing/embedder_test.cpp | |
| parent | 6500c6faf82f636d55c9ca5682711022890bef1d (diff) | |
| download | pdfium-957480c17682008ae2a14723868fcdcab89b6577.tar.xz | |
Allow zero length streams when parsing.chromium/3130
It's possible to create a stream of length 0 in a PDF document.
Currently the code will early exit and return a nullptr. This causes
issues when you want to print the given PDF as the FPDF_ImportPages code
ends up only generating up to the zero length object.
This CL allows creating streams with length 0 and updates the PDF saving
code to output a blank stream.
Bug: chromium:732380
Change-Id: I44182ba4aaac7c51284b002ba01bbc34b6bcf9e0
Reviewed-on: https://pdfium-review.googlesource.com/6490
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
Diffstat (limited to 'testing/embedder_test.cpp')
| -rw-r--r-- | testing/embedder_test.cpp | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/testing/embedder_test.cpp b/testing/embedder_test.cpp index bf00c11607..6cea598400 100644 --- a/testing/embedder_test.cpp +++ b/testing/embedder_test.cpp @@ -326,6 +326,15 @@ FPDF_PAGE EmbedderTest::GetPageTrampoline(FPDF_FORMFILLINFO* info, page_index); } +std::string EmbedderTest::HashBitmap(FPDF_BITMAP bitmap, + int expected_width, + int expected_height) { + uint8_t digest[16]; + CRYPT_MD5Generate(static_cast<uint8_t*>(FPDFBitmap_GetBuffer(bitmap)), + expected_width * 4 * expected_height, digest); + return CryptToBase16(digest); +} + // static void EmbedderTest::CompareBitmap(FPDF_BITMAP bitmap, int expected_width, @@ -339,10 +348,8 @@ void EmbedderTest::CompareBitmap(FPDF_BITMAP bitmap, if (!expected_md5sum) return; - uint8_t digest[16]; - CRYPT_MD5Generate(static_cast<uint8_t*>(FPDFBitmap_GetBuffer(bitmap)), - expected_stride * expected_height, digest); - EXPECT_EQ(expected_md5sum, CryptToBase16(digest)); + EXPECT_EQ(expected_md5sum, + HashBitmap(bitmap, expected_width, expected_height)); } // Can't use gtest-provided main since we need to stash the path to the |