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|
#!/usr/bin/ruby
# msuck - suck NNTP groups into Maildirs
#
# msuck [-s NNTPSERVER[:PORT]] [-d BASEDIR] [-l LIMIT] GROUPS... to fetch GROUPS
# msuck [-s NNTPSERVER[:PORT]] -L to list all groups
require 'socket'
require 'fileutils'
require 'optparse'
$delivery = 0
HOST = Socket.gethostname
def genname(id)
$delivery += 1
t = Time.now
"%d.M%06dP%dQ%d.%s,N=%d" % [t.tv_sec, t.tv_usec, $$, $delivery, HOST, id]
end
params = ARGV.getopts("d:fl:s:L")
dir = params["d"] || '.'
LIMIT = if params["l"]
Integer(params["l"])
else
10
end
port = 119
if params["s"] =~ /(.*):(.*)/
params["s"] = $1
port = Integer($2)
end
SERVER = params["s"] || ENV["NNTPSERVER"] || "news"
nntp = TCPSocket.new SERVER, port
msg = nntp.gets
abort msg unless msg =~ /^20[01] /
if params["L"] # list all groups
nntp.write("LIST NEWSGROUPS\r\n")
msg = nntp.gets
if msg !~ /^215 /
abort msg
end
loop {
msg = nntp.gets
break if msg == ".\r\n"
puts msg
}
exit
end
STDOUT.sync = true
ARGV.each { |group|
FileUtils.mkdir_p(File.join(dir, group, "cur"))
FileUtils.mkdir_p(File.join(dir, group, "new"))
FileUtils.mkdir_p(File.join(dir, group, "tmp"))
nntp.write("GROUP #{group}\r\n")
msg = nntp.gets
unless msg =~ /^211 /
STDERR.puts msg
next
end
_, number, low, high, _ = msg.split(" ", 5)
number = number.to_i
low = low.to_i
high = high.to_i
low = high - LIMIT + 1 if number > LIMIT - 1
low = 1 if low <= 0
have = Dir.entries(File.join(dir, group, "cur")).
map { |f| $1.to_i if f =~ /N=(\d+)/ }.compact
ourhigh = have.max
if ourhigh && low < ourhigh && !params["f"]
low = ourhigh + 1
end
next if low >= high
printf "%s %d-%d ", group, low, high
nntp.write("STAT #{low}\r\n")
msg = nntp.gets
_, num, mid, _ = msg.split(" ", 4)
loop {
unless have.include? num.to_i
nntp.write("ARTICLE\r\n")
msg = nntp.gets
if msg =~ /^220 /
_, num, mid, _ = msg.split(" ", 4)
text = ["X-Msuck: nntp://#{SERVER}/#{group}/#{num}\n"]
loop {
msg = nntp.gets
break if msg == ".\r\n"
msg.sub!(/\A\./, "")
msg.sub!(/\r\n\z/, "\n")
text << msg
}
text = text.join
name = genname(num)
File.write(File.join(dir, group, "tmp", name), text)
File.rename(File.join(dir, group, "tmp", name),
File.join(dir, group, "cur", name + ":2,"))
print "."
else
STDERR.puts msg
end
else
print "="
end
nntp.write("NEXT\r\n")
msg = nntp.gets
if msg !~ /^223 /
break
end
_, num, mid, _ = msg.split(" ", 4)
}
puts
}
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