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// Copyright 2016 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <array>
#include <string>
#include "core/fxcrt/fx_string.h"
#include "public/cpp/fpdf_scopers.h"
#include "public/fpdf_edit.h"
#include "public/fpdf_ppo.h"
#include "public/fpdf_save.h"
#include "public/fpdfview.h"
#include "testing/embedder_test.h"
#include "testing/embedder_test_constants.h"
#include "testing/gmock/include/gmock/gmock-matchers.h"
#include "testing/gtest/include/gtest/gtest.h"
using testing::HasSubstr;
using testing::Not;
using testing::StartsWith;
class FPDFSaveEmbedderTest : public EmbedderTest {};
TEST_F(FPDFSaveEmbedderTest, SaveSimpleDoc) {
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
EXPECT_THAT(GetString(), StartsWith("%PDF-1.7\r\n"));
EXPECT_EQ(805u, GetString().size());
}
TEST_F(FPDFSaveEmbedderTest, SaveSimpleDocWithVersion) {
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
EXPECT_TRUE(FPDF_SaveWithVersion(document(), this, 0, 14));
EXPECT_THAT(GetString(), StartsWith("%PDF-1.4\r\n"));
EXPECT_EQ(805u, GetString().size());
}
TEST_F(FPDFSaveEmbedderTest, SaveSimpleDocWithBadVersion) {
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
EXPECT_TRUE(FPDF_SaveWithVersion(document(), this, 0, -1));
EXPECT_THAT(GetString(), StartsWith("%PDF-1.7\r\n"));
ClearString();
EXPECT_TRUE(FPDF_SaveWithVersion(document(), this, 0, 0));
EXPECT_THAT(GetString(), StartsWith("%PDF-1.7\r\n"));
ClearString();
EXPECT_TRUE(FPDF_SaveWithVersion(document(), this, 0, 18));
EXPECT_THAT(GetString(), StartsWith("%PDF-1.7\r\n"));
}
TEST_F(FPDFSaveEmbedderTest, SaveSimpleDocIncremental) {
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
EXPECT_TRUE(FPDF_SaveWithVersion(document(), this, FPDF_INCREMENTAL, 14));
// Version gets taken as-is from input document.
EXPECT_THAT(GetString(), StartsWith("%PDF-1.7\n%\xa0\xf2\xa4\xf4"));
// Additional output produced vs. non incremental.
EXPECT_EQ(985u, GetString().size());
}
TEST_F(FPDFSaveEmbedderTest, SaveSimpleDocNoIncremental) {
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
EXPECT_TRUE(FPDF_SaveWithVersion(document(), this, FPDF_NO_INCREMENTAL, 14));
EXPECT_THAT(GetString(), StartsWith("%PDF-1.4\r\n"));
EXPECT_EQ(805u, GetString().size());
}
TEST_F(FPDFSaveEmbedderTest, SaveSimpleDocRemoveSecurity) {
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
EXPECT_TRUE(FPDF_SaveWithVersion(document(), this, FPDF_REMOVE_SECURITY, 14));
EXPECT_THAT(GetString(), StartsWith("%PDF-1.4\r\n"));
EXPECT_EQ(805u, GetString().size());
}
TEST_F(FPDFSaveEmbedderTest, SaveSimpleDocBadFlags) {
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
EXPECT_TRUE(FPDF_SaveWithVersion(document(), this, 999999, 14));
EXPECT_THAT(GetString(), StartsWith("%PDF-1.4\r\n"));
EXPECT_EQ(805u, GetString().size());
}
TEST_F(FPDFSaveEmbedderTest, SaveCopiedDoc) {
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
FPDF_PAGE page = LoadPage(0);
EXPECT_TRUE(page);
ScopedFPDFDocument output_doc(FPDF_CreateNewDocument());
EXPECT_TRUE(output_doc);
EXPECT_TRUE(FPDF_ImportPages(output_doc.get(), document(), "1", 0));
EXPECT_TRUE(FPDF_SaveAsCopy(output_doc.get(), this, 0));
UnloadPage(page);
}
TEST_F(FPDFSaveEmbedderTest, Bug42271133) {
ASSERT_TRUE(OpenDocument("bug_42271133.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Arbitrarily remove the first page object.
auto text_object = FPDFPage_GetObject(page, 0);
ASSERT_TRUE(text_object);
ASSERT_TRUE(FPDFPage_RemoveObject(page, text_object));
FPDFPageObj_Destroy(text_object);
// Regenerate dirty stream and save the document.
ASSERT_TRUE(FPDFPage_GenerateContent(page));
UnloadPage(page);
ASSERT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
// Reload saved document.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
// Assert path fill color is not changed to black.
auto path_obj = FPDFPage_GetObject(saved_page, 0);
ASSERT_TRUE(path_obj);
unsigned int r;
unsigned int g;
unsigned int b;
unsigned int a;
ASSERT_TRUE(FPDFPageObj_GetFillColor(path_obj, &r, &g, &b, &a));
EXPECT_EQ(180u, r);
EXPECT_EQ(180u, g);
EXPECT_EQ(180u, b);
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFSaveEmbedderTest, SaveLinearizedDoc) {
const int kPageCount = 3;
std::array<std::string, kPageCount> original_md5;
ASSERT_TRUE(OpenDocument("linearized.pdf"));
for (int i = 0; i < kPageCount; ++i) {
FPDF_PAGE page = LoadPage(i);
ASSERT_TRUE(page);
ScopedFPDFBitmap bitmap = RenderLoadedPage(page);
EXPECT_EQ(612, FPDFBitmap_GetWidth(bitmap.get()));
EXPECT_EQ(792, FPDFBitmap_GetHeight(bitmap.get()));
original_md5[i] = HashBitmap(bitmap.get());
UnloadPage(page);
}
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
EXPECT_THAT(GetString(), StartsWith("%PDF-1.6\r\n"));
EXPECT_THAT(GetString(), HasSubstr("/Root "));
EXPECT_THAT(GetString(), HasSubstr("/Info "));
EXPECT_THAT(GetString(), HasSubstr("/Size 37"));
EXPECT_THAT(GetString(), HasSubstr("35 0 obj"));
EXPECT_THAT(GetString(), HasSubstr("36 0 obj"));
EXPECT_THAT(GetString(), Not(HasSubstr("37 0 obj")));
EXPECT_THAT(GetString(), Not(HasSubstr("38 0 obj")));
EXPECT_EQ(7908u, GetString().size());
// Make sure new document renders the same as the old one.
ASSERT_TRUE(OpenSavedDocument());
for (int i = 0; i < kPageCount; ++i) {
FPDF_PAGE page = LoadSavedPage(i);
ASSERT_TRUE(page);
ScopedFPDFBitmap bitmap = RenderSavedPage(page);
EXPECT_EQ(original_md5[i], HashBitmap(bitmap.get()));
CloseSavedPage(page);
}
CloseSavedDocument();
}
TEST_F(FPDFSaveEmbedderTest, Bug1409) {
ASSERT_TRUE(OpenDocument("jpx_lzw.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
while (FPDFPage_CountObjects(page) > 0) {
ScopedFPDFPageObject object(FPDFPage_GetObject(page, 0));
ASSERT_TRUE(object);
ASSERT_TRUE(FPDFPage_RemoveObject(page, object.get()));
}
ASSERT_TRUE(FPDFPage_GenerateContent(page));
UnloadPage(page);
ASSERT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
// The new document should render as empty.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
ScopedFPDFBitmap bitmap = RenderSavedPage(saved_page);
EXPECT_EQ(pdfium::kBlankPage612By792Checksum, HashBitmap(bitmap.get()));
CloseSavedPage(saved_page);
CloseSavedDocument();
EXPECT_THAT(GetString(), StartsWith("%PDF-1.7\r\n"));
EXPECT_THAT(GetString(), HasSubstr("/Root "));
EXPECT_THAT(GetString(), Not(HasSubstr("/Image")));
EXPECT_LT(GetString().size(), 600u);
}
#ifdef PDF_ENABLE_XFA
TEST_F(FPDFSaveEmbedderTest, SaveXFADoc) {
ASSERT_TRUE(OpenDocument("simple_xfa.pdf"));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
EXPECT_THAT(GetString(), StartsWith("%PDF-1.7\r\n"));
ASSERT_TRUE(OpenSavedDocument());
// TODO(tsepez): check for XFA forms in document
CloseSavedDocument();
}
#endif // PDF_ENABLE_XFA
TEST_F(FPDFSaveEmbedderTest, Bug342) {
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
EXPECT_THAT(GetString(), HasSubstr("0000000000 65535 f\r\n"));
EXPECT_THAT(GetString(), Not(HasSubstr("0000000000 65536 f\r\n")));
}
TEST_F(FPDFSaveEmbedderTest, Bug905142) {
ASSERT_TRUE(OpenDocument("bug_905142.pdf"));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
EXPECT_THAT(GetString(), HasSubstr("/Length 0"));
}
// Should not trigger a DCHECK() failure in CFX_FileBufferArchive.
// Fails because the PDF is malformed.
TEST_F(FPDFSaveEmbedderTest, Bug1328389) {
ASSERT_TRUE(OpenDocument("bug_1328389.pdf"));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
EXPECT_THAT(GetString(), HasSubstr("/Foo/"));
}