mirror of
https://github.com/transmission/transmission
synced 2024-12-23 00:04:06 +00:00
refactor: use tr_torrent_metainfo in transmission-show (#2341)
This commit is contained in:
parent
7c87cb36eb
commit
bc4f513191
3 changed files with 112 additions and 105 deletions
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@ -8,10 +8,6 @@
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#pragma once
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#ifndef __TRANSMISSION__
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#error only libtransmission should #include this header.
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#endif
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#include "transmission.h"
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struct tr_block_info
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@ -8,10 +8,6 @@
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#pragma once
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#ifndef __TRANSMISSION__
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#error only libtransmission should #include this header.
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#endif
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#include <string>
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#include <string_view>
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#include <vector>
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209
utils/show.cc
209
utils/show.cc
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@ -7,32 +7,42 @@
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*/
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#include <array>
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#include <stdio.h> /* fprintf() */
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#include <string.h> /* strcmp(), strchr(), memcmp() */
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#include <stdlib.h> /* qsort() */
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#include <time.h>
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#include <cstdio>
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#include <cstring>
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#include <cstdlib>
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#include <ctime>
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#include <string_view>
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#include <algorithm>
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#include <curl/curl.h>
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#include <event2/buffer.h>
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#include <libtransmission/transmission.h>
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#include <libtransmission/error.h>
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#include <libtransmission/torrent-metainfo.h>
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#include <libtransmission/tr-getopt.h>
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#include <libtransmission/tr-macros.h>
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#include <libtransmission/utils.h>
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#include <libtransmission/web-utils.h> /* tr_webGetResponseStr() */
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#include <libtransmission/variant.h>
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#include <libtransmission/version.h>
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#include <libtransmission/web-utils.h>
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#include "units.h"
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using namespace std::literals;
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static char constexpr MyName[] = "transmission-show";
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static char constexpr Usage[] = "Usage: transmission-show [options] <.torrent file>";
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namespace
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{
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static auto constexpr TimeoutSecs = long{ 30 };
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auto constexpr TimeoutSecs = long{ 30 };
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static auto constexpr Options = std::array<tr_option, 5>{
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char constexpr MyName[] = "transmission-show";
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char constexpr Usage[] = "Usage: transmission-show [options] <.torrent file>";
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char constexpr UserAgent[] = "transmission-show/" LONG_VERSION_STRING;
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auto options = std::array<tr_option, 5>{
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{ { 'm', "magnet", "Give a magnet link for the specified torrent", "m", false, nullptr },
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{ 's', "scrape", "Ask the torrent's trackers how many peers are in the torrent's swarm", "s", false, nullptr },
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{ 'u', "unsorted", "Do not sort files by name", "u", false, nullptr },
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@ -40,39 +50,39 @@ static auto constexpr Options = std::array<tr_option, 5>{
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{ 0, nullptr, nullptr, nullptr, false, nullptr } }
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};
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static bool magnetFlag = false;
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static bool scrapeFlag = false;
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static bool unsorted = false;
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static bool showVersion = false;
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char const* filename = nullptr;
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auto filename_opt = std::string_view{};
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auto magnet_opt = bool{ false };
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auto scrape_opt = bool{ false };
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auto show_version_opt = bool{ false };
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auto unsorted_opt = bool{ false };
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static int parseCommandLine(int argc, char const* const* argv)
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int parseCommandLine(int argc, char const* const* argv)
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{
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int c;
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char const* optarg;
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while ((c = tr_getopt(Usage, argc, argv, std::data(Options), &optarg)) != TR_OPT_DONE)
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while ((c = tr_getopt(Usage, argc, argv, std::data(options), &optarg)) != TR_OPT_DONE)
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{
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switch (c)
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{
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case 'm':
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magnetFlag = true;
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magnet_opt = true;
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break;
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case 's':
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scrapeFlag = true;
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scrape_opt = true;
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break;
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case 'u':
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unsorted = true;
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unsorted_opt = true;
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break;
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case 'V':
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showVersion = true;
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show_version_opt = true;
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break;
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case TR_OPT_UNK:
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filename = optarg;
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filename_opt = optarg;
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break;
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default:
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@ -83,58 +93,48 @@ static int parseCommandLine(int argc, char const* const* argv)
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return 0;
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}
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static void doShowMagnet(tr_info const* inf)
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{
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char* str = tr_torrentInfoGetMagnetLink(inf);
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printf("%s", str);
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tr_free(str);
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}
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static int compare_files_by_name(void const* va, void const* vb)
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{
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tr_file const* a = *(tr_file const* const*)va;
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tr_file const* b = *(tr_file const* const*)vb;
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return strcmp(a->name, b->name);
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}
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static char const* time_t_to_str(time_t timestamp)
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auto toString(time_t timestamp)
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{
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if (timestamp == 0)
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{
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return "Unknown";
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return std::string{ "Unknown" };
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}
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struct tm tm;
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tr_localtime_r(×tamp, &tm);
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static char buf[32];
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strftime(buf, sizeof(buf), "%a %b %d %T %Y%n", &tm); /* ctime equiv */
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return buf;
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auto buf = std::array<char, 64>{};
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strftime(std::data(buf), std::size(buf), "%a %b %d %T %Y%n", &tm); /* ctime equiv */
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return std::string{ std::data(buf) };
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}
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static void showInfo(tr_info const* inf)
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void showInfo(tr_torrent_metainfo const& metainfo)
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{
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char buf[128];
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tr_file** files;
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auto buf = std::array<char, 128>{};
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/**
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*** General Info
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**/
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printf("GENERAL\n\n");
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printf(" Name: %s\n", inf->name);
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printf(" Hash: %s\n", inf->hashString);
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printf(" Created by: %s\n", inf->creator ? inf->creator : "Unknown");
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printf(" Created on: %s\n", time_t_to_str(inf->dateCreated));
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printf(" Name: %s\n", metainfo.name().c_str());
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printf(" Hash: %" TR_PRIsv "\n", TR_PRIsv_ARG(metainfo.infoHashString()));
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printf(" Created by: %s\n", std::empty(metainfo.creator()) ? "Unknown" : metainfo.creator().c_str());
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printf(" Created on: %s\n", toString(metainfo.dateCreated()).c_str());
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if (!tr_str_is_empty(inf->comment))
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if (!std::empty(metainfo.comment()))
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{
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printf(" Comment: %s\n", inf->comment);
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printf(" Comment: %s\n", metainfo.comment().c_str());
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}
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printf(" Piece Count: %zu\n", size_t(inf->pieceCount));
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printf(" Piece Size: %s\n", tr_formatter_mem_B(buf, inf->pieceSize, sizeof(buf)));
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printf(" Total Size: %s\n", tr_formatter_size_B(buf, inf->totalSize, sizeof(buf)));
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printf(" Privacy: %s\n", inf->isPrivate ? "Private torrent" : "Public torrent");
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if (!std::empty(metainfo.source()))
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{
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printf(" Source: %s\n", metainfo.source().c_str());
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}
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printf(" Piece Count: %" PRIu64 "\n", metainfo.pieceCount());
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printf(" Piece Size: %s\n", tr_formatter_mem_B(std::data(buf), metainfo.pieceSize(), std::size(buf)));
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printf(" Total Size: %s\n", tr_formatter_size_B(std::data(buf), metainfo.totalSize(), std::size(buf)));
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printf(" Privacy: %s\n", metainfo.isPrivate() ? "Private torrent" : "Public torrent");
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/**
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*** Trackers
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@ -143,7 +143,7 @@ static void showInfo(tr_info const* inf)
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printf("\nTRACKERS\n");
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auto current_tier = std::optional<tr_tracker_tier_t>{};
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auto print_tier = size_t{ 1 };
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for (auto const& tracker : *inf->announce_list)
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for (auto const& tracker : metainfo.announceList())
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{
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if (!current_tier || current_tier != tracker.tier)
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{
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***
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**/
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if (inf->webseedCount > 0)
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auto const& webseeds = metainfo.webseeds();
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if (!std::empty(webseeds))
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{
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printf("\nWEBSEEDS\n\n");
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for (unsigned int i = 0; i < inf->webseedCount; ++i)
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for (auto const& webseed : webseeds)
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{
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printf(" %s\n", inf->webseeds[i]);
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printf(" %s\n", webseed.c_str());
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}
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}
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**/
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printf("\nFILES\n\n");
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files = tr_new(tr_file*, inf->fileCount);
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for (unsigned int i = 0; i < inf->fileCount; ++i)
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auto filenames = std::vector<std::string>{};
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for (auto const& file : metainfo.files())
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{
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files[i] = &inf->files[i];
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std::string filename = file.path();
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filename += " (";
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filename += tr_formatter_size_B(std::data(buf), file.length(), std::size(buf));
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filename += ')';
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filenames.emplace_back(filename);
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}
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if (!unsorted)
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if (!unsorted_opt)
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{
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qsort(files, inf->fileCount, sizeof(tr_file*), compare_files_by_name);
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std::sort(std::begin(filenames), std::end(filenames));
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}
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for (unsigned int i = 0; i < inf->fileCount; ++i)
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for (auto const& filename : filenames)
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{
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printf(" %s (%s)\n", files[i]->name, tr_formatter_size_B(buf, files[i]->length, sizeof(buf)));
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printf(" %s\n", filename.c_str());
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}
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tr_free(files);
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}
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static size_t writeFunc(void* ptr, size_t size, size_t nmemb, void* vbuf)
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size_t writeFunc(void* ptr, size_t size, size_t nmemb, void* vbuf)
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{
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auto* buf = static_cast<evbuffer*>(vbuf);
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size_t const byteCount = size * nmemb;
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return byteCount;
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}
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static CURL* tr_curl_easy_init(struct evbuffer* writebuf)
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CURL* tr_curl_easy_init(struct evbuffer* writebuf)
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{
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CURL* curl = curl_easy_init();
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curl_easy_setopt(curl, CURLOPT_USERAGENT, tr_strvJoin(MyName, "/", LONG_VERSION_STRING).c_str());
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curl_easy_setopt(curl, CURLOPT_USERAGENT, UserAgent);
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curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, writeFunc);
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curl_easy_setopt(curl, CURLOPT_WRITEDATA, writebuf);
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curl_easy_setopt(curl, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
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return curl;
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}
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static void doScrape(tr_info const* inf)
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void doScrape(tr_torrent_metainfo const& metainfo)
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{
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for (auto const& tracker : *inf->announce_list)
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for (auto const& tracker : metainfo.announceList())
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{
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if (std::empty(tracker.scrape_str))
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{
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continue;
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}
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char escaped[SHA_DIGEST_LENGTH * 3 + 1];
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tr_http_escape_sha1(escaped, inf->hash);
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// build the full scrape URL
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auto escaped = std::array<char, TR_SHA1_DIGEST_LEN * 3 + 1>{};
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tr_http_escape_sha1(std::data(escaped), metainfo.infoHash());
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auto const scrape = tracker.scrape.full;
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auto const url = tr_strvJoin(scrape, (tr_strvContains(scrape, '?') ? "&"sv : "?"sv), "info_hash="sv, escaped);
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auto const url = tr_strvJoin(
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scrape,
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(tr_strvContains(scrape, '?') ? "&"sv : "?"sv),
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"info_hash="sv,
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std::data(escaped));
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printf("%" TR_PRIsv " ... ", TR_PRIsv_ARG(url));
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fflush(stdout);
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@ -265,9 +273,12 @@ static void doScrape(tr_info const* inf)
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tr_quark key;
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tr_variant* val;
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auto hashsv = std::string_view{ reinterpret_cast<char const*>(std::data(metainfo.infoHash())),
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std::size(metainfo.infoHash()) };
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while (tr_variantDictChild(files, child_pos, &key, &val))
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{
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if (memcmp(std::data(inf->hash), tr_quark_get_string(key), std::size(inf->hash)) == 0)
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if (hashsv == tr_quark_get_string_view(key))
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{
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int64_t seeders;
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if (!tr_variantDictFindInt(val, TR_KEY_complete, &seeders))
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}
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}
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} // namespace
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int tr_main(int argc, char* argv[])
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{
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int err;
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tr_info inf;
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tr_ctor* ctor;
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tr_logSetLevel(TR_LOG_ERROR);
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tr_formatter_mem_init(MEM_K, MEM_K_STR, MEM_M_STR, MEM_G_STR, MEM_T_STR);
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tr_formatter_size_init(DISK_K, DISK_K_STR, DISK_M_STR, DISK_G_STR, DISK_T_STR);
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return EXIT_FAILURE;
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}
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if (showVersion)
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if (show_version_opt)
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{
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fprintf(stderr, "%s %s\n", MyName, LONG_VERSION_STRING);
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return EXIT_SUCCESS;
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}
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/* make sure the user specified a filename */
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if (filename == nullptr)
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if (std::empty(filename_opt))
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{
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fprintf(stderr, "ERROR: No .torrent file specified.\n");
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tr_getopt_usage(MyName, Usage, std::data(Options));
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tr_getopt_usage(MyName, Usage, std::data(options));
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fprintf(stderr, "\n");
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return EXIT_FAILURE;
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}
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/* try to parse the .torrent file */
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ctor = tr_ctorNew(nullptr);
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tr_ctorSetMetainfoFromFile(ctor, filename);
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err = tr_torrentParse(ctor, &inf);
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tr_ctorFree(ctor);
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if (err != TR_PARSE_OK)
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auto metainfo = tr_torrent_metainfo{};
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tr_error* error = nullptr;
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auto const parsed = metainfo.parseTorrentFile(filename_opt, nullptr, &error);
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if (error != nullptr)
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{
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fprintf(
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stderr,
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"Error parsing .torrent file \"%" TR_PRIsv "\": %s (%d)\n",
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TR_PRIsv_ARG(filename_opt),
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error->message,
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error->code);
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tr_error_clear(&error);
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}
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if (!parsed)
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{
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fprintf(stderr, "Error parsing .torrent file \"%s\"\n", filename);
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return EXIT_FAILURE;
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}
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if (magnetFlag)
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if (magnet_opt)
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{
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doShowMagnet(&inf);
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printf("%s", metainfo.magnet().c_str());
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}
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else
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{
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printf("Name: %s\n", inf.name);
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printf("File: %s\n", filename);
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printf("Name: %s\n", metainfo.name().c_str());
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printf("File: %" TR_PRIsv "\n", TR_PRIsv_ARG(filename_opt));
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printf("\n");
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fflush(stdout);
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if (scrapeFlag)
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if (scrape_opt)
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{
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doScrape(&inf);
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doScrape(metainfo);
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}
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else
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{
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showInfo(&inf);
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showInfo(metainfo);
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}
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}
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/* cleanup */
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putc('\n', stdout);
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tr_metainfoFree(&inf);
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return EXIT_SUCCESS;
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}
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