/usr/share/doc/ruby-rubytorrent/examples/rtpeer-ncurses.rb is in ruby-rubytorrent 0.3-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 | ## rtpeer-ncurses.rb -- RubyTorrent ncurses BitTorrent peer.
## Copyright 2005 William Morgan.
##
## This file is part of RubyTorrent. RubyTorrent is free software;
## you can redistribute it and/or modify it under the terms of version
## 2 of the GNU General Public License as published by the Free
## Software Foundation.
##
## RubyTorrent is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License (in the file COPYING) for more details.
require "rubytorrent"
require "ncurses"
require "optparse"
def die(x); $stderr << "#{x}\n" && exit(-1); end
dlratelim = nil
ulratelim = nil
opts = OptionParser.new do |opts|
opts.banner =
%{Usage: rtpeer-ncurses [options] <torrent> [<target>]
rtpeer-ncurses is a very simple ncurses-based BitTorrent peer. You can use it
to download .torrents or to seed them.
<torrent> is a .torrent filename or URL.
<target> is a file or directory on disk. If not specified, the default value
from <torrent> will be used.
[options] are:
}
opts.on("-l", "--log FILENAME",
"Log events to FILENAME (for debugging)") do |fn|
RubyTorrent::log_output_to(fn)
end
opts.on("-d", "--downlimit LIMIT", Integer,
"Limit download rate to LIMIT kb/s") do |x|
dlratelim = x * 1024
end
opts.on("-u", "--uplimit LIMIT", Integer,
"Limit upload rate to LIMIT kb/s") do |x|
ulratelim = x * 1024
end
opts.on_tail("-h", "--help", "Show this message") do
puts opts
exit
end
end
opts.parse!(ARGV)
proxy = ENV["http_proxy"]
torrent = ARGV.shift or (puts opts; exit)
dest = ARGV.shift
class Numeric
def to_sz
if self < 1024
"#{self.round}b"
elsif self < 1024 ** 2
"#{(self / 1024 ).round}k"
elsif self < 1024 ** 3
sprintf("%.1fm", self.to_f / (1024 ** 2))
else
sprintf("%.2fg", self.to_f / (1024 ** 3))
end
end
MIN = 60
HOUR = 60 * MIN
DAY = 24 * HOUR
def to_time
if self < MIN
sprintf("0:%02d", self)
elsif self < HOUR
sprintf("%d:%02d", self / MIN, self % MIN)
elsif self < DAY
sprintf("%d:%02d:%02d", self / HOUR, (self % HOUR) / MIN, (self % HOUR) % MIN)
else
sprintf("%dd %d:%02d:%02d", self / DAY, (self % DAY) / HOUR, ((self % DAY) % HOUR) / MIN, ((self % DAY) % HOUR) % MIN)
end
end
end
class NilClass
def to_time; "--:--"; end
def to_sz; "-"; end
end
class Display
STALL_SECS = 15
attr_accessor :fn, :dest, :status,:dlamt, :ulamt, :dlrate, :ulrate,
:conn_peers, :fail_peers, :untried_peers, :tracker,
:errcount, :completed, :total, :rate, :use_rate
def initialize(window)
@window = window
@need_update = true
@fn = ""
@dest = ""
@status = ""
@completed = 0
@total = 0
@dlamt = 0
@dlrate = 0
@ulamt = 0
@ulrate = 0
@rate = 0
@conn_peers = 0
@fail_peers = 0
@untried_peers = 0
@tracker = "not connected"
@errcount = 0
@dlblocks = 0
@ulblocks = 0
@got_blocks = 0
@sent_blocks = 0
@last_got_block = nil
@last_sent_block = nil
@start_time = nil
@use_rate = false
end
def got_block
@got_blocks += 1
@last_got_block = Time.now
end
def sent_block
@sent_blocks += 1
@last_sent_block = Time.now
end
def sigwinch_handler(sig = nil)
@need_update = true
end
def start_timer
@start_time = Time.now
end
def draw
if @need_update
update_size
@window.erase
end
complete_width = [@cols - 23, 0].max
complete_ticks = ((@completed.to_f / @total) * complete_width)
elapsed = (@start_time ? Time.now - @start_time : nil)
rate = (use_rate ? @rate : @dlrate)
remaining = rate && (rate > 0 ? (@total - @completed).to_f / rate : nil)
dlstall = @last_got_block && ((Time.now - @last_got_block) > STALL_SECS)
ulstall = @last_sent_block && ((Time.now - @last_sent_block) > STALL_SECS)
line = 1
[
"Contents: #@fn",
" Dest: #@dest",
"",
" Status: #@status",
"Progress: [" + ("#" * complete_ticks),
" Time: elapsed #{elapsed.to_time}, remaining #{remaining.to_time}",
"Download: #{@dlamt.to_sz} at #{dlstall ? '(stalled)' : @dlrate.to_sz + '/s'}",
" Upload: #{@ulamt.to_sz} at #{ulstall ? '(stalled)' : @ulrate.to_sz + '/s'}",
" Peers: connected to #@conn_peers (#@fail_peers failed, #@untried_peers untried)",
" Tracker: #@tracker",
" Errors: #@errcount",
].each do |s|
break if line > @rows
@window.mvaddnstr(line, 2, s + (" " * @cols), @cols - 4)
line += 1
end
## progress bar tail
@window.mvaddstr(5, @cols - 11, sprintf("] %.2f%% ", (@completed.to_f / @total) * 100.0))
@window.mvaddnstr(7, 31, "|" + ("#" * (@dlrate / 1024)) + (" " * @cols), @cols - 31 - 2)
@window.mvaddnstr(8, 31, "|" + ('#' * (@ulrate / 1024)) + (" " * @cols), @cols - 31 - 2)
@window.box(0,0)
# @got_blocks -= 1 unless @got_blocks == 0
# @sent_blocks -= 1 unless @sent_blocks == 0
end
private
def update_size
rows = []
cols = []
## jesus CHRIST this is a shitty interface.
@window.getmaxyx(rows, cols)
@rows = rows[0]
@cols = cols[0]
@need_update = false
end
end
begin
mi = RubyTorrent::MetaInfo.from_location(torrent, proxy)
rescue RubyTorrent::MetaInfoFormatError, RubyTorrent::BEncodingError => e
die %{Error: can\'t parse metainfo file "#{torrent}"---maybe not a .torrent?}
rescue RubyTorrent::TypedStructError => e
$stderr << <<EOS
error parsing metainfo file, and it's likely something I should know about.
please email the torrent file to wmorgan-rubytorrent-bug@masanjin.net,
along with this backtrace: (this is RubyTorrent version #{RubyTorrent::VERSION})
EOS
raise e
rescue IOError, SystemCallError => e
$stderr.puts %{Error: can't read file "#{torrent}": #{e.message}}
exit
end
unless dest.nil?
if FileTest.directory?(dest) && mi.info.single?
dest = File.join(dest, mi.info.name)
elsif FileTest.file?(dest) && mi.info.multiple?
die %{Error: .torrent contains multiple files, but "#{dest}" is a single file (must be a directory)}
end
end
def handle_any_input(display)
case(Ncurses.getch())
when "q".ord, "Q".ord
Ncurses.curs_set(1)
Ncurses.endwin()
exit
when Ncurses::KEY_RESIZE
display.sigwinch_handler
end
end
Ncurses.initscr
begin
Ncurses.nl()
Ncurses.noecho()
Ncurses.curs_set(0)
Ncurses.stdscr.nodelay(true)
Ncurses.timeout(0)
display = Display.new Ncurses.stdscr
display.status = "checking file on disk..."
display.dest = File.expand_path(dest || mi.info.name) + (mi.single? ? "" : "/")
if mi.single?
display.fn = "#{mi.info.name} (#{mi.info.length.to_sz} in one file)"
else
display.fn = "#{mi.info.name}/ (#{mi.info.total_length.to_sz} in #{mi.info.files.length} files)"
end
display.total = mi.info.num_pieces * mi.info.piece_length
display.completed = 0
display.draw; Ncurses.refresh
display.use_rate = true
display.start_timer
num_pieces = 0
start = Time.now
every = 10
package = RubyTorrent::Package.new(mi, dest) do |piece|
num_pieces += 1
if (num_pieces % every) == 0
display.completed = (num_pieces * mi.info.piece_length)
display.rate = display.completed.to_f / (Time.now - start)
handle_any_input display
display.draw; Ncurses.refresh
end
end
display.status = "starting peer..."
display.use_rate = false
display.draw; Ncurses.refresh
bt = RubyTorrent::BitTorrent.new(mi, package, :http_proxy => proxy, :dlratelim => dlratelim, :ulratelim => ulratelim)
connecting = true
bt.on_event(self, :received_block) do |s, b, peer|
display.got_block
connecting = false
end
bt.on_event(self, :sent_block) do |s, b, peer|
display.sent_block
connecting = false
end
bt.on_event(self, :discarded_piece) { |s, p| display.errcount += 1 }
bt.on_event(self, :tracker_connected) do |s, url|
display.tracker = url
display.untried_peers = bt.num_possible_peers
end
bt.on_event(self, :tracker_lost) { |s, url| display.tracker = "can't connect to #{url}" }
bt.on_event(self, :forgetting_peer) { |s, p| display.fail_peers += 1 }
bt.on_event(self, :removed_peer, :added_peer) do |s, p|
if (display.conn_peers = bt.num_active_peers) == 0
connecting = true
end
end
bt.on_event(self, :added_peer) { |s, p| display.conn_peers += 1 }
bt.on_event(self, :trying_peer) { |s, p| display.untried_peers -= 1 unless display.untried_peers == 0 }
display.total = bt.total_bytes
display.start_timer
while true
handle_any_input(display)
display.status = if bt.complete?
"seeding (download complete)"
elsif connecting
"connecting to peers"
else
"downloading"
end
display.draw; Ncurses.refresh
display.dlamt = bt.dlamt
display.dlrate = bt.dlrate
display.ulamt = bt.ulamt
display.ulrate = bt.ulrate
display.completed = bt.bytes_completed
display.draw; Ncurses.refresh
sleep(0.5)
end
ensure
Ncurses.curs_set(1)
Ncurses.endwin()
end
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