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