// Copyright 2015 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <limits>
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#include <string>
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#include "fpdfsdk/fpdfview_c_api_test.h"
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#include "public/fpdfview.h"
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#include "testing/embedder_test.h"
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#include "testing/gtest/include/gtest/gtest.h"
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TEST(fpdf, CApiTest) {
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EXPECT_TRUE(CheckPDFiumCApi());
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}
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class FPDFViewEmbeddertest : public EmbedderTest {};
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TEST_F(FPDFViewEmbeddertest, Document) {
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EXPECT_TRUE(OpenDocument("about_blank.pdf"));
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EXPECT_EQ(1, GetPageCount());
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EXPECT_EQ(0, GetFirstPageNum());
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int version;
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EXPECT_TRUE(FPDF_GetFileVersion(document(), &version));
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EXPECT_EQ(14, version);
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EXPECT_EQ(0xFFFFFFFF, FPDF_GetDocPermissions(document()));
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EXPECT_EQ(-1, FPDF_GetSecurityHandlerRevision(document()));
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}
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// See bug 465.
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TEST_F(FPDFViewEmbeddertest, EmptyDocument) {
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EXPECT_TRUE(CreateEmptyDocument());
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{
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int version = 42;
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EXPECT_FALSE(FPDF_GetFileVersion(document(), &version));
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EXPECT_EQ(0, version);
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}
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{
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#ifndef PDF_ENABLE_XFA
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const unsigned long kExpected = 0;
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#else
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const unsigned long kExpected = static_cast<uint32_t>(-1);
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#endif
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EXPECT_EQ(kExpected, FPDF_GetDocPermissions(document()));
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}
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EXPECT_EQ(-1, FPDF_GetSecurityHandlerRevision(document()));
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EXPECT_EQ(0, FPDF_GetPageCount(document()));
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EXPECT_TRUE(FPDF_VIEWERREF_GetPrintScaling(document()));
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EXPECT_EQ(1, FPDF_VIEWERREF_GetNumCopies(document()));
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EXPECT_EQ(DuplexUndefined, FPDF_VIEWERREF_GetDuplex(document()));
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EXPECT_EQ(0u, FPDF_CountNamedDests(document()));
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}
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TEST_F(FPDFViewEmbeddertest, Page) {
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EXPECT_TRUE(OpenDocument("about_blank.pdf"));
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FPDF_PAGE page = LoadPage(0);
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EXPECT_NE(nullptr, page);
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EXPECT_EQ(612.0, FPDF_GetPageWidth(page));
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EXPECT_EQ(792.0, FPDF_GetPageHeight(page));
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UnloadPage(page);
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EXPECT_EQ(nullptr, LoadPage(1));
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}
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TEST_F(FPDFViewEmbeddertest, ViewerRef) {
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EXPECT_TRUE(OpenDocument("about_blank.pdf"));
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EXPECT_TRUE(FPDF_VIEWERREF_GetPrintScaling(document()));
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EXPECT_EQ(1, FPDF_VIEWERREF_GetNumCopies(document()));
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EXPECT_EQ(DuplexUndefined, FPDF_VIEWERREF_GetDuplex(document()));
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}
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TEST_F(FPDFViewEmbeddertest, NamedDests) {
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EXPECT_TRUE(OpenDocument("named_dests.pdf"));
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long buffer_size;
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char fixed_buffer[512];
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FPDF_DEST dest;
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// Query the size of the first item.
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buffer_size = 2000000; // Absurdly large, check not used for this case.
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dest = FPDF_GetNamedDest(document(), 0, nullptr, &buffer_size);
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EXPECT_NE(nullptr, dest);
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EXPECT_EQ(12, buffer_size);
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// Try to retrieve the first item with too small a buffer.
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buffer_size = 10;
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dest = FPDF_GetNamedDest(document(), 0, fixed_buffer, &buffer_size);
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EXPECT_NE(nullptr, dest);
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EXPECT_EQ(-1, buffer_size);
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// Try to retrieve the first item with correctly sized buffer. Item is
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// taken from Dests NameTree in named_dests.pdf.
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buffer_size = 12;
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dest = FPDF_GetNamedDest(document(), 0, fixed_buffer, &buffer_size);
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EXPECT_NE(nullptr, dest);
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EXPECT_EQ(12, buffer_size);
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EXPECT_EQ(std::string("F\0i\0r\0s\0t\0\0\0", 12),
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std::string(fixed_buffer, buffer_size));
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// Try to retrieve the second item with ample buffer. Item is taken
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// from Dests NameTree but has a sub-dictionary in named_dests.pdf.
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buffer_size = sizeof(fixed_buffer);
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dest = FPDF_GetNamedDest(document(), 1, fixed_buffer, &buffer_size);
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EXPECT_NE(nullptr, dest);
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EXPECT_EQ(10, buffer_size);
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EXPECT_EQ(std::string("N\0e\0x\0t\0\0\0", 10),
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std::string(fixed_buffer, buffer_size));
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// Try to retrieve third item with ample buffer. Item is taken
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// from Dests NameTree but has a bad sub-dictionary in named_dests.pdf.
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// in named_dests.pdf).
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buffer_size = sizeof(fixed_buffer);
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dest = FPDF_GetNamedDest(document(), 2, fixed_buffer, &buffer_size);
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EXPECT_EQ(nullptr, dest);
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EXPECT_EQ(sizeof(fixed_buffer),
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static_cast<size_t>(buffer_size)); // unmodified.
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// Try to retrieve the forth item with ample buffer. Item is taken
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// from Dests NameTree but has a vale of the wrong type in named_dests.pdf.
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buffer_size = sizeof(fixed_buffer);
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dest = FPDF_GetNamedDest(document(), 3, fixed_buffer, &buffer_size);
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EXPECT_EQ(nullptr, dest);
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EXPECT_EQ(sizeof(fixed_buffer),
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static_cast<size_t>(buffer_size)); // unmodified.
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// Try to retrieve fifth item with ample buffer. Item taken from the
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// old-style Dests dictionary object in named_dests.pdf.
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buffer_size = sizeof(fixed_buffer);
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dest = FPDF_GetNamedDest(document(), 4, fixed_buffer, &buffer_size);
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EXPECT_NE(nullptr, dest);
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EXPECT_EQ(30, buffer_size);
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EXPECT_EQ(std::string("F\0i\0r\0s\0t\0A\0l\0t\0e\0r\0n\0a\0t\0e\0\0\0", 30),
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std::string(fixed_buffer, buffer_size));
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// Try to retrieve sixth item with ample buffer. Item istaken from the
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// old-style Dests dictionary object but has a sub-dictionary in
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// named_dests.pdf.
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buffer_size = sizeof(fixed_buffer);
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dest = FPDF_GetNamedDest(document(), 5, fixed_buffer, &buffer_size);
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EXPECT_NE(nullptr, dest);
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EXPECT_EQ(28, buffer_size);
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EXPECT_EQ(std::string("L\0a\0s\0t\0A\0l\0t\0e\0r\0n\0a\0t\0e\0\0\0", 28),
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std::string(fixed_buffer, buffer_size));
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// Try to retrieve non-existent item with ample buffer.
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buffer_size = sizeof(fixed_buffer);
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dest = FPDF_GetNamedDest(document(), 6, fixed_buffer, &buffer_size);
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EXPECT_EQ(nullptr, dest);
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EXPECT_EQ(sizeof(fixed_buffer),
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static_cast<size_t>(buffer_size)); // unmodified.
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// Try to underflow/overflow the integer index.
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buffer_size = sizeof(fixed_buffer);
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dest = FPDF_GetNamedDest(document(), std::numeric_limits<int>::max(),
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fixed_buffer, &buffer_size);
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EXPECT_EQ(nullptr, dest);
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EXPECT_EQ(sizeof(fixed_buffer),
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static_cast<size_t>(buffer_size)); // unmodified.
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buffer_size = sizeof(fixed_buffer);
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dest = FPDF_GetNamedDest(document(), std::numeric_limits<int>::min(),
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fixed_buffer, &buffer_size);
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EXPECT_EQ(nullptr, dest);
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EXPECT_EQ(sizeof(fixed_buffer),
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static_cast<size_t>(buffer_size)); // unmodified.
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buffer_size = sizeof(fixed_buffer);
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dest = FPDF_GetNamedDest(document(), -1, fixed_buffer, &buffer_size);
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EXPECT_EQ(nullptr, dest);
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EXPECT_EQ(sizeof(fixed_buffer),
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static_cast<size_t>(buffer_size)); // unmodified.
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}
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TEST_F(FPDFViewEmbeddertest, NamedDestsByName) {
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EXPECT_TRUE(OpenDocument("named_dests.pdf"));
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// Null pointer returns nullptr.
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FPDF_DEST dest = FPDF_GetNamedDestByName(document(), nullptr);
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EXPECT_EQ(nullptr, dest);
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// Empty string returns nullptr.
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dest = FPDF_GetNamedDestByName(document(), "");
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EXPECT_EQ(nullptr, dest);
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// Item from Dests NameTree.
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dest = FPDF_GetNamedDestByName(document(), "First");
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EXPECT_NE(nullptr, dest);
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long ignore_len = 0;
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FPDF_DEST dest_by_index =
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FPDF_GetNamedDest(document(), 0, nullptr, &ignore_len);
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EXPECT_EQ(dest_by_index, dest);
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// Item from Dests dictionary.
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dest = FPDF_GetNamedDestByName(document(), "FirstAlternate");
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EXPECT_NE(nullptr, dest);
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ignore_len = 0;
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dest_by_index = FPDF_GetNamedDest(document(), 4, nullptr, &ignore_len);
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EXPECT_EQ(dest_by_index, dest);
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// Bad value type for item from Dests NameTree array.
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dest = FPDF_GetNamedDestByName(document(), "WrongType");
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EXPECT_EQ(nullptr, dest);
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// No such destination in either Dest NameTree or dictionary.
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dest = FPDF_GetNamedDestByName(document(), "Bogus");
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EXPECT_EQ(nullptr, dest);
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}
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// The following tests pass if the document opens without crashing.
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TEST_F(FPDFViewEmbeddertest, Crasher_113) {
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EXPECT_TRUE(OpenDocument("bug_113.pdf"));
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}
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TEST_F(FPDFViewEmbeddertest, Crasher_451830) {
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// Document is damaged and can't be opened.
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EXPECT_FALSE(OpenDocument("bug_451830.pdf"));
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}
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TEST_F(FPDFViewEmbeddertest, Crasher_452455) {
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EXPECT_TRUE(OpenDocument("bug_452455.pdf"));
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FPDF_PAGE page = LoadPage(0);
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EXPECT_NE(nullptr, page);
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UnloadPage(page);
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}
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TEST_F(FPDFViewEmbeddertest, Crasher_454695) {
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// Document is damaged and can't be opened.
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EXPECT_FALSE(OpenDocument("bug_454695.pdf"));
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}
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TEST_F(FPDFViewEmbeddertest, Crasher_572871) {
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EXPECT_TRUE(OpenDocument("bug_572871.pdf"));
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}
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// It tests that document can still be loaded even the trailer has no 'Size'
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// field if other information is right.
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TEST_F(FPDFViewEmbeddertest, Failed_213) {
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EXPECT_TRUE(OpenDocument("bug_213.pdf"));
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}
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// The following tests pass if the document opens without infinite looping.
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TEST_F(FPDFViewEmbeddertest, Hang_298) {
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EXPECT_FALSE(OpenDocument("bug_298.pdf"));
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}
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// Test if the document opens without infinite looping.
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// Previously this test will hang in a loop inside LoadAllCrossRefV4. After
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// the fix, LoadAllCrossRefV4 will return false after detecting a cross
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// reference loop. Cross references will be rebuilt successfully.
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TEST_F(FPDFViewEmbeddertest, CrossRefV4Loop) {
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EXPECT_TRUE(OpenDocument("bug_xrefv4_loop.pdf"));
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}
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// The test should pass when circular references to ParseIndirectObject will not
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// cause infinite loop.
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TEST_F(FPDFViewEmbeddertest, Hang_343) {
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EXPECT_FALSE(OpenDocument("bug_343.pdf"));
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}
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// The test should pass when the absence of 'Contents' field in a signature
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// dictionary will not cause an infinite loop in CPDF_SyntaxParser::GetObject().
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TEST_F(FPDFViewEmbeddertest, Hang_344) {
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EXPECT_FALSE(OpenDocument("bug_344.pdf"));
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}
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// The test should pass when there is no infinite recursion in
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// CPDF_SyntaxParser::GetString().
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TEST_F(FPDFViewEmbeddertest, Hang_355) {
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EXPECT_FALSE(OpenDocument("bug_355.pdf"));
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}
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// The test should pass even when the file has circular references to pages.
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TEST_F(FPDFViewEmbeddertest, Hang_360) {
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EXPECT_FALSE(OpenDocument("bug_360.pdf"));
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}
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