266 lines
9.9 KiB
C++
266 lines
9.9 KiB
C++
// This file Copyright (C) 2013-2022 Mnemosyne LLC.
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// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
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// or any future license endorsed by Mnemosyne LLC.
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// License text can be found in the licenses/ folder.
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#include <array>
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#include <string_view>
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#include "transmission.h"
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#include "crypto-utils.h"
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#include "error.h"
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#include "torrent-metainfo.h"
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#include "torrent.h"
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#include "tr-strbuf.h"
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#include "utils.h"
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#include "test-fixtures.h"
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using namespace std::literals;
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namespace libtransmission
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{
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namespace test
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{
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using TorrentMetainfoTest = SessionTest;
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TEST_F(TorrentMetainfoTest, magnetLink)
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{
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// background info @ http://wiki.theory.org/BitTorrent_Magnet-URI_Webseeding
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auto constexpr MagnetLink =
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"magnet:?"
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"xt=urn:btih:14ffe5dd23188fd5cb53a1d47f1289db70abf31e"
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"&dn=ubuntu_12_04_1_desktop_32_bit"
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"&tr=http%3A%2F%2Ftracker.publicbt.com%2Fannounce"
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"&tr=udp%3A%2F%2Ftracker.publicbt.com%3A80"
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"&ws=http%3A%2F%2Ftransmissionbt.com"sv;
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auto metainfo = tr_torrent_metainfo{};
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EXPECT_TRUE(metainfo.parseMagnet(MagnetLink));
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EXPECT_EQ(0U, metainfo.fileCount()); // because it's a magnet link
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EXPECT_EQ(2U, std::size(metainfo.announceList()));
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EXPECT_EQ(MagnetLink, metainfo.magnet().sv());
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}
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#define BEFORE_PATH \
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"d10:created by25:Transmission/2.82 (14160)13:creation datei1402280218e8:encoding5:UTF-84:infod5:filesld6:lengthi2e4:pathl"
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#define AFTER_PATH \
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"eed6:lengthi2e4:pathl5:b.txteee4:name3:foo12:piece lengthi32768e6:pieces20:ÞÉ`âMs¡Å;˺¬.åÂà7:privatei0eee"
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// FIXME: split these into parameterized tests?
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TEST_F(TorrentMetainfoTest, bucket)
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{
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struct LocalTest
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{
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std::string_view benc;
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bool expected_parse_result;
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};
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auto const tests = std::array<LocalTest, 9>{ {
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{ BEFORE_PATH "5:a.txt" AFTER_PATH, true },
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// allow empty components, but not =all= empty components, see bug #5517
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{ BEFORE_PATH "0:5:a.txt" AFTER_PATH, true },
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{ BEFORE_PATH "0:0:" AFTER_PATH, false },
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// allow path separators in a filename (replaced with '_')
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{ BEFORE_PATH "7:a/a.txt" AFTER_PATH, true },
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// allow "." components (skipped)
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{ BEFORE_PATH "1:.5:a.txt" AFTER_PATH, true },
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{ BEFORE_PATH "5:a.txt1:." AFTER_PATH, true },
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// allow ".." components (replaced with "__")
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{ BEFORE_PATH "2:..5:a.txt" AFTER_PATH, true },
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{ BEFORE_PATH "5:a.txt2:.." AFTER_PATH, true },
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// fail on empty string
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{ "", false },
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} };
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tr_logSetLevel(TR_LOG_OFF);
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for (auto const& test : tests)
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{
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auto metainfo = tr_torrent_metainfo{};
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EXPECT_EQ(test.expected_parse_result, metainfo.parseBenc(test.benc));
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}
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}
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TEST_F(TorrentMetainfoTest, parseBencFuzzRegressions)
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{
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static auto constexpr Tests = std::array<std::string_view, 1>{
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"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"sv,
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};
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for (auto const& test : Tests)
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{
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auto tm = tr_torrent_metainfo{};
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tm.parseBenc(tr_base64_decode(test));
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}
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}
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TEST_F(TorrentMetainfoTest, parseBencFuzz)
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{
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auto buf = std::vector<char>{};
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for (size_t i = 0; i < 100000; ++i)
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{
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buf.resize(tr_rand_int(1024));
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tr_rand_buffer(std::data(buf), std::size(buf));
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// std::cerr << '[' << tr_base64_encode({ std::data(buf), std::size(buf) }) << ']' << std::endl;
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auto tm = tr_torrent_metainfo{};
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tm.parseBenc({ std::data(buf), std::size(buf) });
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}
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}
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#if 0
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TEST_F(TorrentMetainfoTest, sanitize)
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{
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struct LocalTest
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{
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std::string_view input;
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std::string_view expected_output;
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};
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auto const tests = std::array<LocalTest, 29>{
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// skipped
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LocalTest{ ""sv, ""sv },
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{ "."sv, ""sv },
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{ ".."sv, ""sv },
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{ "....."sv, ""sv },
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{ " "sv, ""sv },
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{ " . "sv, ""sv },
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{ ". . ."sv, ""sv },
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// replaced with '_'
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{ "/"sv, "_"sv },
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{ "////"sv, "____"sv },
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{ "\\\\"sv, "__"sv },
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{ "/../"sv, "_.._"sv },
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{ "foo<bar:baz/boo"sv, "foo_bar_baz_boo"sv },
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{ "t\0e\x01s\tt\ri\nn\fg"sv, "t_e_s_t_i_n_g"sv },
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// appended with '_'
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{ "con"sv, "con_"sv },
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{ "cOm4"sv, "cOm4_"sv },
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{ "LPt9.txt"sv, "LPt9_.txt"sv },
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{ "NUL.tar.gz"sv, "NUL_.tar.gz"sv },
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// trimmed
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{ " foo"sv, "foo"sv },
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{ "foo "sv, "foo"sv },
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{ " foo "sv, "foo"sv },
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{ "foo."sv, "foo"sv },
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{ "foo..."sv, "foo"sv },
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{ " foo... "sv, "foo"sv },
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// unmodified
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{ "foo"sv, "foo"sv },
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{ ".foo"sv, ".foo"sv },
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{ "..foo"sv, "..foo"sv },
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{ "foo.bar.baz"sv, "foo.bar.baz"sv },
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{ "null"sv, "null"sv },
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{ "compass"sv, "compass"sv },
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};
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auto out = std::string{};
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for (auto const& test : tests)
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{
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out.clear();
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auto const success = tr_metainfoAppendSanitizedPathComponent(out, test.input);
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EXPECT_EQ(!std::empty(out), success);
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EXPECT_EQ(test.expected_output, out);
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}
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}
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#endif
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TEST_F(TorrentMetainfoTest, AndroidTorrent)
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{
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auto const filename = tr_pathbuf{ LIBTRANSMISSION_TEST_ASSETS_DIR, "/Android-x86 8.1 r6 iso.torrent"sv };
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auto* ctor = tr_ctorNew(session_);
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tr_error* error = nullptr;
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EXPECT_TRUE(tr_ctorSetMetainfoFromFile(ctor, filename.c_str(), &error));
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EXPECT_EQ(nullptr, error) << *error;
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auto const* const metainfo = tr_ctorGetMetainfo(ctor);
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EXPECT_NE(nullptr, metainfo);
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EXPECT_EQ(336, metainfo->infoDictOffset());
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EXPECT_EQ(26583, metainfo->infoDictSize());
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EXPECT_EQ(592, metainfo->piecesOffset());
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tr_ctorFree(ctor);
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}
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TEST_F(TorrentMetainfoTest, ctorSaveContents)
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{
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auto const src_filename = tr_pathbuf{ LIBTRANSMISSION_TEST_ASSETS_DIR, "/Android-x86 8.1 r6 iso.torrent"sv };
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auto const tgt_filename = tr_pathbuf{ ::testing::TempDir(), "save-contents-test.torrent" };
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// try saving without passing any metainfo.
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auto* ctor = tr_ctorNew(session_);
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tr_error* error = nullptr;
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EXPECT_FALSE(tr_ctorSaveContents(ctor, tgt_filename.sv(), &error));
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EXPECT_NE(nullptr, error);
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if (error != nullptr)
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{
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EXPECT_EQ(EINVAL, error->code);
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tr_error_clear(&error);
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}
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// now try saving _with_ metainfo
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EXPECT_TRUE(tr_ctorSetMetainfoFromFile(ctor, src_filename.c_str(), &error));
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EXPECT_EQ(nullptr, error) << *error;
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EXPECT_TRUE(tr_ctorSaveContents(ctor, tgt_filename.sv(), &error));
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EXPECT_EQ(nullptr, error) << *error;
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// the saved contents should match the source file's contents
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auto src_contents = std::vector<char>{};
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EXPECT_TRUE(tr_loadFile(src_filename.sv(), src_contents, &error));
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auto tgt_contents = std::vector<char>{};
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EXPECT_TRUE(tr_loadFile(tgt_filename.sv(), tgt_contents, &error));
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EXPECT_EQ(src_contents, tgt_contents);
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// cleanup
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EXPECT_TRUE(tr_sys_path_remove(tgt_filename, &error));
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EXPECT_EQ(nullptr, error) << *error;
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tr_error_clear(&error);
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tr_ctorFree(ctor);
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}
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TEST_F(TorrentMetainfoTest, HoffmanStyleWebseeds)
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{
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auto const src_filename = tr_pathbuf{ LIBTRANSMISSION_TEST_ASSETS_DIR, "/debian-11.2.0-amd64-DVD-1.iso.torrent"sv };
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auto tm = tr_torrent_metainfo{};
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EXPECT_TRUE(tm.parseTorrentFile(src_filename));
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EXPECT_EQ(size_t{ 2 }, tm.webseedCount());
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EXPECT_EQ(
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"https://cdimage.debian.org/cdimage/release/11.2.0//srv/cdbuilder.debian.org/dst/deb-cd/weekly-builds/amd64/iso-dvd/debian-11.2.0-amd64-DVD-1.iso"sv,
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tm.webseed(0));
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EXPECT_EQ(
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"https://cdimage.debian.org/cdimage/archive/11.2.0//srv/cdbuilder.debian.org/dst/deb-cd/weekly-builds/amd64/iso-dvd/debian-11.2.0-amd64-DVD-1.iso"sv,
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tm.webseed(1));
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}
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TEST_F(TorrentMetainfoTest, GetRightStyleWebseedList)
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{
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auto const src_filename = tr_pathbuf{ LIBTRANSMISSION_TEST_ASSETS_DIR, "/webseed-getright-list.torrent"sv };
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auto tm = tr_torrent_metainfo{};
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EXPECT_TRUE(tm.parseTorrentFile(src_filename));
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EXPECT_EQ(size_t{ 2 }, tm.webseedCount());
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EXPECT_EQ("http://www.webseed-one.com/"sv, tm.webseed(0));
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EXPECT_EQ("http://webseed-two.com/"sv, tm.webseed(1));
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}
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TEST_F(TorrentMetainfoTest, GetRightStyleWebseedString)
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{
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auto const src_filename = tr_pathbuf{ LIBTRANSMISSION_TEST_ASSETS_DIR, "/webseed-getright-string.torrent"sv };
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auto tm = tr_torrent_metainfo{};
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EXPECT_TRUE(tm.parseTorrentFile(src_filename));
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EXPECT_EQ(size_t{ 1 }, tm.webseedCount());
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EXPECT_EQ("http://www.webseed-one.com/"sv, tm.webseed(0));
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}
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// Test for https://github.com/transmission/transmission/issues/3591
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TEST_F(TorrentMetainfoTest, parseBencOOBWrite)
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{
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auto tm = tr_torrent_metainfo{};
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EXPECT_FALSE(tm.parseBenc(tr_base64_decode("ZGg0OmluZm9kNjpwaWVjZXMzOkFpzQ==")));
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}
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} // namespace test
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} // namespace libtransmission
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