#! /usr/bin/ruby -w
#-------------------------------------------------------------------------------------------------
# wgettsv
# Collect WWW resources and generate TSV data
# Copyright (C) 2006-2009 Mikio Hirabayashi
# This file is part of Tokyo Cabinet.
# Tokyo Cabinet is free software; you can redistribute it and/or modify it under the terms of
# the GNU Lesser General Public License as published by the Free Software Foundation; either
# version 2.1 of the License or any later version. Tokyo Cabinet 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 Lesser General Public
# License for more details.
# You should have received a copy of the GNU Lesser General Public License along with Tokyo
# Cabinet; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
# Boston, MA 02111-1307 USA.
#-------------------------------------------------------------------------------------------------
require 'open-uri'
require 'iconv'
require 'kconv'
require 'date'
require 'time'
require 'cgi'
# main routine
def main
seeds = []
hist = {}
filters = []
max = 1 << 30
lim = 1 << 20
wait = 0
ndf = false
i = 0
while i < ARGV.length
if seeds.length < 1 && ARGV[i] =~ /^-/
if ARGV[i] == '-allow'
usage if (i += 1) >= ARGV.length
regex = Regexp::new(ARGV[i])
filters.push([true, regex]) if regex
elsif ARGV[i] == '-deny'
usage if (i += 1) >= ARGV.length
regex = Regexp::new(ARGV[i])
filters.push([false, regex]) if regex
elsif ARGV[i] == '-max'
usage if (i += 1) >= ARGV.length
max = ARGV[i].to_i
elsif ARGV[i] == '-lim'
usage if (i += 1) >= ARGV.length
lim = ARGV[i].to_i
elsif ARGV[i] == '-wait'
usage if (i += 1) >= ARGV.length
wait = ARGV[i].to_f
elsif ARGV[i] == '-ndf'
ndf = true
else
usage
end
else
if ARGV[i] =~ /^http:\/\//i
seeds.push(ARGV[i])
hist[ARGV[i]] = true
else
usage
end
end
i += 1
end
usage if seeds.length < 1
if !ndf
filters.push([false, /\.(txt|text|asc|c|cc|cxx|cpp|h|hxx|hpp|in)$/i])
filters.push([false, /\.(css|js|csv|tsv|log|md5|crc|conf|ini|inf|lnk|sys|tmp|bak)$/i])
filters.push([false, /\.(xml|xsl|xslt|rdf|rss|dtd|sgml|sgm)$/i])
filters.push([false, /\.(pgp|sig|cer|csr|pem|key|b64|uu|uue|[0-9])$/i])
filters.push([false, /\.(rtf|pdf|ps|eps|ai|doc|xls|ppt|sxw|sxc|sxi|xdw|jtd|oas|swf)$/i])
filters.push([false, /\.(zip|tar|tgz|gz|bz2|tbz2|z|lha|lzh)?$/i])
filters.push([false, /\.(7z|lzo|lzma|cpio|shar|cab|rar|sit|ace|hqx)?$/i])
filters.push([false, /\.(bin|o|a|so|exe|dll|lib|obj|ocx|class|jar|war)?$/i])
filters.push([false, /\.(rpm|deb|qdb|qdb|dbx|dbf|dat|msi|bat|com|iso)?$/i])
filters.push([false, /\.(png|gif|jpg|jpeg|tif|tiff|bmp|ico|pbm|pgm|ppm|xbm|xpm|dvi)$/i])
filters.push([false, /\.(au|snd|mid|midi|kar|smf|mp2|mp3|m3u|wav|wma|wmp|asx|at3|aif)$/i])
filters.push([false, /\.(mpg|mpeg|qt|mov|avi|wmv|wvx|asf|ram|rm)$/i])
filters.push([false, /\.(tch|tdb|tdf|tct)$/i])
filters.push([false, /\.idx\./i])
filters.push([false, /(core|casket|Makefile|README|NEWS|COPYING|LISENCE)($|\/)/i])
end
return proc(seeds, hist, filters, max, lim, wait) ? 0 : 1
end
# print the command usage and exit
def usage
STDERR.printf("%s: collect WWW resources and generate TSV data\n", $progname)
STDERR.printf("\n")
STDERR.printf("usage:\n")
STDERR.printf(" %s [-allow regex] [-deny regex] [-max num] [-lim num] [-wait num]" +
" url ...\n", $progname)
STDERR.printf("\n")
exit(1)
end
# fetch each content
def proc(seeds, hist, filters, max, lim, wait)
cnt = 0
while (url = seeds.shift) && cnt < max
STDERR.printf("%d: getting: %s\n", cnt + 1, url)
begin
opts = {}
OpenURI.open_uri(url, 0, 0, opts) do |sio|
baseuri = sio.base_uri
if baseuri && baseuri.to_s != url
url = baseuri.to_s
hist[url] = true
end
size = sio.size
raise "invalid size" if size > lim || size < 3
type = sio.content_type
type = "text/plain" if !type
str = sio.read
head = str[0,2048]
if (head[0] == 0xfe && head[1] == 0xff) || (head[0] == 0xff && head[1] == 0xfe)
str = Kconv::kconv(str, Kconv::UTF8, Kconv::UTF16)
charset = "UTF-8"
elsif str.include?(0)
raise "binary data"
end
raise "not HTML" if type != "text/html" && head !~ /<html/i && head !~ /<body/i
if !charset && head =~ /<\?xml.*encoding=("|')?[-_a-zA-Z0-9]+("|')/im
charset = head.gsub(/.*<\?xml.*encoding=["']?([-_a-zA-Z0-9]+)["']?.*/im, '\1')
end
if !charset && head =~ /<meta.*content-type.*charset=[-_a-zA-Z0-9]+/im
charset = head.gsub(/.*<meta.*content-type.*charset=([-_a-zA-Z0-9]+).*/im, '\1')
end
charset = sio.charset if !charset || charset.length < 1
if charset && charset.length > 0
if charset !~ /^UTF-?8$/i
begin
nstr = Iconv.conv("UTF-8", charset, str)
str = nstr if nstr && nstr.length > 0
rescue
str = str.toutf8
end
end
else
str = str.toutf8
end
body = str.gsub(/.*<body[^>]*>/im, "")
body = body.gsub(/<\/body>.*/im, "")
body = htmltotext(body)
if str =~ /<title[^>]*>[^<]*<\/title>/im
title = str.gsub(/.*<title[^>]*>([^<]*)<\/title>.*/im, '\1')
title = htmltotext(title)
end
title = "" if !title
title = title[0,128] if title.length > 128
mtime = sio.last_modified
if mtime
mtime = Time::parse(mtime.to_s).to_i
else
mtime = 0
end
printf("%d", cnt + 1)
printf("\turl\t%s", url)
printf("\tsize\t%s", size) if size > 0
printf("\tmtime\t%s", mtime) if mtime > 0
printf("\ttitle\t%s", title) if title.length > 0
printf("\tbody\t%s", body) if body.length > 0
printf("\n")
str.gsub(/<a[^>]*>/im) do |tag|
if tag =~ /href=["']?[^"'>]+["']?/
href = tag.gsub(/.*href=["']?([^"'>]+)["']?.*/, '\1')
href = URI::join(url, href).to_s
href = href.gsub(/#.*/, "")
if !hist[href] && checkurl(href, filters)
seeds.push(href)
hist[href] = true
end
end
end
end
cnt += 1
rescue
STDERR.printf("%d: failed: %s: %s\n", cnt + 1, url, $!)
end
sleep(wait) if wait > 0
end
return 0
end
# convert HTML to plain-text
def htmltotext(str)
str = str.gsub(/<style[^>]*>.*?<\/style>/im, " ")
str = str.gsub(/<script[^>]*>.*?<\/script>/im, " ")
str = str.gsub(/<\/?(p|br|div|h1|h2|h3|h4|h5|h6|ul|ol|dl|li|dd|dt|td|th|pre)[^>]*>/im, " ")
str = str.gsub(/<[^>]*>/, "")
str = str.gsub(/&(nbsp|#160|#0160|#xa0|#x00a0);/i, " ")
hexrx = Regexp::new("^&#x[0-9a-zA-Z]+;")
decrx = Regexp::new("^&#[0-9]+;")
str = str.gsub(/&#?[A-Za-z0-9]+;/) do |pat|
case pat
when "<"
pat = '<'
when ">"
pat = '>'
when """
pat = '"'
when "'"
pat = "'"
when " "
pat = " "
else
begin
if pat =~ hexrx
pat = [ pat.gsub(/&#x([A-Za-z0-9]+);/i, '\1').hex ].pack("n")
pat = Iconv.conv("UTF-8", "UTF-16BE", pat)
elsif pat =~ decrx
pat = [ pat.gsub(/&#([A-Za-z0-9]+);/i, '\1').to_i ].pack("n")
pat = Iconv.conv("UTF-8", "UTF-16BE", pat)
else
pat = " "
end
rescue
pat = ""
end
end
pat
end
str = str.gsub(/[\x00-\x20]/, " ")
str = str.gsub(/\xe3\x80\x80/, " ")
str = str.gsub(/ +/, " ")
str = str.gsub(/^ */, "")
str = str.gsub(/ *$/, "")
return str
end
# check whether the url passes the filters or not
def checkurl(url, filters)
return false if url !~ /^http:\/\//i;
return true if filters.length < 1
ok = !filters[0][0]
filters.each do |filter|
ok = filter[0] if url =~ filter[1]
end
return ok
end
# execute the actual operations
STDOUT.sync = true
$progname = $0.dup
$progname.gsub!(/.*\//, "")
srand
exit(main)