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fuwatto.rb
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#!/usr/bin/env ruby
# -*- coding: utf-8 -*-
# $Id$
$:.unshift "."
require "net/http"
require "net/https"
#require "pp"
require "digest/md5"
require "tempfile"
require "erb"
require "cgi"
require "nkf"
require "kconv"
require "rubygems"
require "json"
require "libxml"
begin
require "MeCab"
rescue LoadError
begin
require "mecab"
rescue
require "mecab_local.rb"
end
end
begin
require "extractcontent"
rescue LoadError
# require "extractcontent_local.rb"
end
Encoding.default_external = Encoding::UTF_8
module Math
def self::log2( n )
Math.log10( n ) / Math.log10( 2 )
end
end
class String
def shorten( len = 120 )
matched = self.gsub( /\n/, ' ' ).scan( /^.{0,#{len - 2}}/u )[0]
if $'.nil? || $'.empty?
matched
else
matched + '..'
end
end
end
class Array
def uniq_by
result = []
hash = {}
self.each do |e|
next if hash[ yield e ]
hash[ yield e ] = true
result << e
end
result
end
end
class Hash
def make_uri_params
if self.empty?
""
else
self.keys.map do |e|
"#{ e }=#{ URI.encode_www_form_component( self[e].to_s ) }"
end.join( "&" )
end
end
end
module Fuwatto
VERSION = '3.2.0'
BASE_URI = 'https://fuwat.to/'
USER_AGENT = "Fuwatto Search/#{ VERSION }; #{ BASE_URI }"
CACHE_TIME = 60 * 60 * 24 * 5 # 3日経つまで、キャッシュは有効
MAX_PAGE = 19 # ページネイションに表示されるアイテム数
PRF_TOP_K = 10
PRF_ALPHA = 0.5 # 元クエリベクトルに対する相対的な重み
# （元ベクトルの重み最大値に対する比を指定する）
# Bag of Words による文書表現
class Document < Array
include Fuwatto
attr_reader :content
# opts - 特徴語スコアの計算手法切り替え
#
# :term_weight
# - :default (:logcost) => MeCab単語コストの対数値
# - :cost => MeCab単語コスト
# - :tf => TF（出現回数）
def initialize( content, mode = :mecab, opts = {} )
super()
return if content.nil?
@content = NKF.nkf( "-wm0XZ1", content ).gsub( /\s+/, " " ).strip
normalized_content = @content.downcase
opts[ :term_weight ] = :default if not opts[ :term_weight ]
clear
case mode
when "yahoo"
self.push( *extract_keywords_yahooapi( normalized_content ) )
else
self.push( *extract_keywords_mecab( normalized_content, opts ) )
end
#puts self
end
# 類似度計算
def sim( vector )
sum = 0.0
vector.each do |k, v|
term = self.assoc( k )
sum += v * term[1] if term
end
sum / vector.size
end
end
YAHOO_KEYWORD_BASEURI = "http://jlp.yahooapis.jp/KeyphraseService/V1/extract"
YAHOO_APPID = "W11oHSWxg65mAdRwjBT4ylIdfS9PkHPjVvtJzx9Quwy.um8e1LPf_b.4usSBcmI-"
def extract_keywords_yahooapi( str )
#cont = open( "?appid=#{ YAHOO_APPID }&sentence=#{ URI.encode_www_form_component( str ) }&output=xml" ){|io| io.read }
uri = URI.parse( YAHOO_KEYWORD_BASEURI )
#response = http_get( uri )
http = Net::HTTP.new( uri.host, uri.port )
xml = nil
http.start do |conn|
data = "appid=#{ YAHOO_APPID }&sentence=#{ URI.encode_www_form_component( str ) }&output=xml"
# p data
res, = conn.post( uri.path, data )
xml = res.body
end
#p xml
parser = LibXML::XML::Parser.string( xml )
doc = parser.parse
keywords = doc.find( "//y:Keyphrase", "y:urn:yahoo:jp:jlp:KeyphraseService" ).map{|e| e.content }
#keywords.each do |e|
# p e.content
#end
keywords.select{|e| not e.nil? and not e.empty? }
end
def extract_keywords_mecab( str, opts )
return [] if str.strip.empty?
mecab = MeCab::Tagger.new( '--node-format=%m\t%H\t%c\n --unk-format=%m\tUNK\t%c\n' )
lines = mecab.parse( str )
#puts lines
lines = lines.split( /\n/ ).map{|l| l.split(/\t/) }
lines = lines.select{|l| l[2] and l[1] =~ /^名詞|UNK|形容詞/o and l[1] !~ /接[頭尾]|非自立|代名詞/o }
#p lines
if lines.empty?
raise Fuwatto::NoKeywordExtractedError
end
min = lines.map{|e| e[2].to_i }.min
lines = lines.map{|e| [ e[0], e[1], e[2].to_i + min.abs + 1 ] } if min < 0
count = Hash.new( 0 )
score = 0
lines.each_with_index do |line, idx|
# Ignore ASCII and other symbol chars
next if line[0] =~ /\A[\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f、。「『』」・〇〜ー□‰±♪゜]+\Z/o
# Ignore one or two digit numbers
next if line[0] =~ /\A[0-9][0-9]?\Z/o
# Stop words, derived from Lucene
next if line[0] =~ /\A(?:w(?:h(?:e(?:re(?:a(?:[st]|fter)|u(?:nto|pon)|in(?:to)?|o[fn]?|from|with|ver|by)?|n(?:(?:so)?ever|ce)?|ther)|o(?:m(?:(?:so)?ever)?|s(?:oever|e)|ever|le)?|i(?:ch(?:(?:so)?ever)?|l(?:st|e)|ther)|at(?:(?:so)?ever)?|y)|i(?:th(?:out|in)?|ll)|e(?:ll|re)?|ould|as)|a(?:l(?:(?:bei|mos)t|on[eg]|though|ready|ways|so|l)|n(?:y(?:(?:wher|on)e|thing|how)?|other|d)?|fter(?:wards)?|bo(?:ut|ve)|gain(?:st)?|mong(?:st)?|r(?:ound|e)|(?:cros)?s|dj|t)?|t(?:h(?:e(?:re(?:(?:upo|i)n|afte|for|by)?|m(?:selves)?|n(?:ce)?|ir|se|y)?|r(?:ough(?:out)?|u)|o(?:ugh|se)|[iu]s|a[nt])|o(?:gether|wards?|o)?)?|s(?:o(?:me(?:t(?:imes?|hing)|(?:wher|on)e|how)?)?|e(?:em(?:ing|ed|s)?|veral)|(?:inc|am)e|h(?:ould|e)|till|uch)?|b(?:e(?:c(?:om(?:es?|ing)|a(?:us|m)e)|fore(?:hand)?|(?:hi|yo)nd|(?:twe)?en|sides?|ing|low)?|oth|ut|y)|h(?:e(?:r(?:e(?:(?:upo|i)n|by)?|s(?:elf)?)?|eafter|nce)?|i(?:m(?:self)?|s)|a(?:[ds]|ve)|ow(?:ever)?)|o(?:u(?:r(?:(?:selve)?s)?|t)|n(?:ce one|ly|to)?|ther(?:wise|s)?|f(?:ten|f)?|(?:ve)?r|wn)|e(?:ve(?:r(?:y(?:(?:wher|on)e|thing)?)?|n)|ls(?:ewher)?e|(?:noug|ac)h|ither|xcept|tc|g)|n(?:o(?:[rw]|t(?:hing)?|body|o?ne)?|e(?:ver(?:theless)?|ither|xt)|amely|where)|m(?:o(?:re(?:over)?|st(?:ly)?)|(?:eanwhil)?e|u(?:ch|st)|y(?:self)?|an?y|ight)|i(?:[efs]|n(?:deed|to|c)?|t(?:s(?:elf)?)?)?|f(?:or(?:mer(?:ly)?)?|urther|irst|rom|ew)|l(?:a(?:tter(?:ly)?|st)|e(?:ast|ss)|td)|y(?:ou(?:r(?:s(?:el(?:ves|f))?)?)?|et)|x(?:author|other |note|subj|cal)|u(?:n(?:der|til)|p(?:on)?|s)|c(?:an(?:not)?|o(?:uld)?)|d(?:uring|own)|per(?:haps)?|v(?:ery|ia)|rather)\Z/o
#next if line[0].size < 3
#p line[2]
#puts line.join("\t")
case opts[ :term_weight ]
when :tf
score = 1
when :count, :cost
score = line[2].to_i
else # :logcost, :default
score = Math.log2( line[2].to_i + 1 )
end
#p [ line[0], score, idx ]
score /= Math.log2( idx + 2 ) if opts[ :term_weight_position ]
count[ line[0] ] += score
#count[ line[0] ] += 1
end
#p count
ranks = count.keys.sort_by{|e| count[e] }.reverse.map{|e| [e,count[e]] }
#pp ranks
#3.times do |i|
# puts [ i+1, ranks[i], count[ ranks[i] ] ].join( "\t" )
#end
ranks
end
# Supports redirect
def http_get( uri, limit = 10 )
#STDERR.puts uri.to_s
raise "Too many redirects: #{ uri }" if limit < 0
http_proxy = ENV[ "http_proxy" ]
proxy, proxy_port = nil
if http_proxy
proxy_uri = URI.parse( http_proxy )
proxy = proxy_uri.host
proxy_port = proxy_uri.port
end
http = Net::HTTP.Proxy( proxy, proxy_port ).new( uri.host, uri.port )
http.use_ssl = true if uri.scheme == "https"
http.start do |http|
response, = http.get( uri.request_uri, { 'User-Agent'=>USER_AGENT } )
#if response.code !~ /^2/
# response.each do |k,v|
# p [ k, v ]
# end
#end
case response
when Net::HTTPSuccess
response
when Net::HTTPRedirection
redirect_uri = URI.parse( response['Location'] )
STDERR.puts "redirect to #{ redirect_uri } (#{limit})"
http_get( uri + redirect_uri, limit - 1 )
else
response.error!
end
end
end
CACHE_DIR = "cache"
class Cache
CACHE_DIR = "cache"
def initialize( prefix )
@prefix = prefix
@cache_dir = File.join( CACHE_DIR, @prefix )
begin
unless File.exist? @cache_dir
Dir.mkdir @cache_dir
end
end
end
def filename( name, page = 0 )
xml_fname = name.dup
if xml_fname.size > 245
xml_fname = Digest::MD5.hexdigest( xml_fname )
end
xml_fname << ":#{ page }" if not page.nil? and not page == 0
xml_fname << ".xml"
File.join( @cache_dir, xml_fname )
end
def fetch( name, page = 0 )
fname = filename( name, page )
if File.exist?( fname ) and ( Time.now - File.mtime( fname ) ) < CACHE_TIME
cont = open( fname ){|io| io.read }
else
cont = yield
open( fname, "w" ){|io| io.print cont }
end
cont
end
end
def cache_xml( prefix, name, page = 0 )
xml_fname = name.dup
if xml_fname.size > 245
xml_fname = Digest::MD5.hexdigest( xml_fname )
end
xml_fname << ":#{ page }" if not page.nil? and not page == 0
xml_fname << ".xml"
File.join( CACHE_DIR, prefix, xml_fname )
end
PDFTOTEXT = "/usr/bin/pdftotext"
def pdftotext( pdf_str )
pdf_file = Tempfile.new( [ "pdf", ".pdf" ] )
pdf_file.print pdf_str
pdf_file.flush
#p pdf_file.size
IO.popen( "#{ PDFTOTEXT } -raw -enc EUC-JP #{ pdf_file.path } -" ) do |io|
io.read
end
end
CINII_APPID = "CiNii10-281c60b8055e2d850686566dedb7c922"
# CiNii Opensearch API
def cinii_search( keyword, opts = {} )
base_uri = "http://ci.nii.ac.jp/opensearch/search"
q = URI.encode_www_form_component( keyword )
cont = nil
cache_file = cache_xml( "cinii", q, opts[:start] )
#p File.mtime( cache_file )
if File.exist?( cache_file ) and ( Time.now - File.mtime( cache_file ) ) < CACHE_TIME
cont = open( cache_file ){|io| io.read }
else
# TODO: Atom/RSSの双方を対象にできるようにすること（現状は Atom のみ）
opts[ :format ] = "atom"
opts_s = opts.make_uri_params
opensearch_uri = URI.parse( "#{ base_uri }?q=#{ q }&appid=#{ CINII_APPID }&#{ opts_s }" )
response = http_get( opensearch_uri )
cont = response.body
open( cache_file, "w" ){|io| io.print cont }
end
data = {}
parser = LibXML::XML::Parser.string( cont )
doc = parser.parse
# ref. http://ci.nii.ac.jp/info/ja/if_opensearch.html
data[ :q ] = keyword
data[ :link ] = doc.find( "//atom:id", "atom:http://www.w3.org/2005/Atom" )[0].content.gsub( /&(format=atom|appid=#{ CINII_APPID })\b/, "" )
data[ :totalResults ] = doc.find( "//opensearch:totalResults" )[0].content.to_i
if data[ :totalResults ] > 0
data[ :itemsPerPage ] = doc.find( "//opensearch:itemsPerPage" )[0].content.to_i
end
entries = doc.find( "//atom:entry", "atom:http://www.w3.org/2005/Atom" )
data[ :entries ] = []
entries.each do |e|
title = e.find( "./atom:title", "atom:http://www.w3.org/2005/Atom" )[0]
title = title ? title.content : "(No Title)"
url = e.find( "./atom:id", "atom:http://www.w3.org/2005/Atom" )[0].content
author = e.find( ".//atom:author/atom:name", "atom:http://www.w3.org/2005/Atom" ).to_a.map{|name|
a = name.content
/^\s*\W/.match( a ) ? a.gsub( /\s*,\s*/, " " ) : a
}.join( "; " )
pubname = e.find( "./prism:publicationName", "prism:http://prismstandard.org/namespaces/basic/2.0/" )[0]
if pubname.nil?
pubname = e.find( "./dc:publisher", "dc:http://purl.org/dc/elements/1.1/" )[0]
pubname = pubname.content if pubname
else
pubname = pubname.content
end
pubdate = e.find( "./prism:publicationDate", "prism:http://prismstandard.org/namespaces/basic/2.0/" )[0] #.content
pubdate = pubdate.nil? ? "" : pubdate.content
description = e.find( "./atom:content", "atom:http://www.w3.org/2005/Atom" )[0]
description = description.nil? ? "" : description.content
data[ :entries ] << {
:title => title,
:url => url,
:author => author,
:publicationName => pubname,
:publicationDate => pubdate,
:description => description,
}
end
data
end
def cinii_research_search( keyword, opts = {} )
base_uri = "https://cir.nii.ac.jp/opensearch/all"
q = URI.encode_www_form_component( keyword )
cont = nil
cache_file = cache_xml( "cinii_r", q, opts[:start] )
#p File.mtime( cache_file )
if File.exist?( cache_file ) and ( Time.now - File.mtime( cache_file ) ) < CACHE_TIME
cont = open( cache_file ){|io| io.read }
else
# TODO: Atom/RSSの双方を対象にできるようにすること（現状は Atom のみ）
opts[ :format ] = "atom"
opts_s = opts.make_uri_params
opensearch_uri = URI.parse( "#{ base_uri }?q=#{ q }&appid=#{ CINII_APPID }&#{ opts_s }" )
response = http_get( opensearch_uri )
cont = response.body
open( cache_file, "w" ){|io| io.print cont }
end
data = {}
parser = LibXML::XML::Parser.string( cont )
doc = parser.parse
# ref. https://support.nii.ac.jp/ja/cir/r_opensearch, (old) http://ci.nii.ac.jp/info/ja/if_opensearch.html
data[ :q ] = keyword
data[ :link ] = doc.find( "//atom:id", "atom:http://www.w3.org/2005/Atom" )[0].content.gsub( /&(format=atom|appid=#{ CINII_APPID })\b/, "" )
data[ :totalResults ] = doc.find( "//opensearch:totalResults" )[0].content.to_i
if data[ :totalResults ] > 0
data[ :itemsPerPage ] = doc.find( "//opensearch:itemsPerPage" )[0].content.to_i
end
entries = doc.find( "//atom:entry", "atom:http://www.w3.org/2005/Atom" )
data[ :entries ] = []
entries.each do |e|
title = e.find( "./atom:title", "atom:http://www.w3.org/2005/Atom" )[0]
title = title ? title.content : "(No Title)"
url = e.find( "./atom:id", "atom:http://www.w3.org/2005/Atom" )[0].content
author = e.find( ".//atom:author/atom:name", "atom:http://www.w3.org/2005/Atom" ).to_a.map{|name|
a = name.content
/^\s*\W/.match( a ) ? a.gsub( /\s*,\s*/, " " ) : a
}.join( "; " )
pubname = e.find( "./prism:publicationName", "prism:http://prismstandard.org/namespaces/basic/2.0/" )[0]
if pubname.nil?
pubname = e.find( "./dc:publisher", "dc:http://purl.org/dc/elements/1.1/" )[0]
pubname = pubname.content if pubname
else
pubname = pubname.content
end
pubdate = e.find( "./prism:publicationDate", "prism:http://prismstandard.org/namespaces/basic/2.0/" )[0] #.content
pubdate = pubdate.nil? ? "" : pubdate.content
description = e.find( "./atom:content", "atom:http://www.w3.org/2005/Atom" )[0]
description = description.nil? ? "" : description.content
data[ :entries ] << {
:title => title,
:url => url,
:author => author,
:publicationName => pubname,
:publicationDate => pubdate,
:description => description,
}
end
data
end
# CiNii (Author) Opensearch API
def cinii_author_search( keyword, opts = {} )
base_uri = "http://ci.nii.ac.jp/opensearch/author"
q = URI.encode_www_form_component( keyword )
cont = nil
cache_file = cache_xml( "cinii_author", q, opts[:start] )
#p File.mtime( cache_file )
if File.exist?( cache_file ) and ( Time.now - File.mtime( cache_file ) ) < CACHE_TIME
cont = open( cache_file ){|io| io.read }
else
opts[ :format ] = "atom"
opts[ :sortorder ] ||= 3
opts_s = opts.make_uri_params
opensearch_uri = URI.parse( "#{ base_uri }?q=#{ q }&appid=#{ CINII_APPID }&#{ opts_s }" )
response = http_get( opensearch_uri )
cont = response.body
open( cache_file, "w" ){|io| io.print cont }
end
data = {}
parser = LibXML::XML::Parser.string( cont )
doc = parser.parse
# ref. http://ci.nii.ac.jp/info/ja/if_opensearch_auth.html
data[ :q ] = keyword
data[ :link ] = doc.find( "//atom:id", "atom:http://www.w3.org/2005/Atom" )[0].content.gsub( /&(format=atom|appid=#{ CINII_APPID })\b/, "" )
data[ :totalResults ] = doc.find( "//opensearch:totalResults" )[0].content.to_i
entries = doc.find( "//atom:entry", "atom:http://www.w3.org/2005/Atom" )
data[ :entries ] = []
entries.each do |e|
title = e.find( "./atom:title", "atom:http://www.w3.org/2005/Atom" )[0].content
url = e.find( "./atom:id", "atom:http://www.w3.org/2005/Atom" )[0].content
affiliation = e.find( "./atom:content", "atom:http://www.w3.org/2005/Atom" )[0]
affiliation = affiliation ? affiliation.content : ""
data[ :entries ] << {
:title => title,
:url => url,
:affiliation => affiliation,
}
end
data
end
# CiNii (Author:NRID) Opensearch API
def cinii_nrid_search( nrid, opts = {} )
q = URI.encode_www_form_component( nrid )
base_uri = "http://ci.nii.ac.jp/opensearch/nrid/"
cont = nil
cache_file = cache_xml( "cinii_nrid", q, opts[:start] )
#p File.mtime( cache_file )
if File.exist?( cache_file ) and ( Time.now - File.mtime( cache_file ) ) < CACHE_TIME
cont = open( cache_file ){|io| io.read }
else
opts[ :format ] = "atom"
# opts[ :sortorder ] ||= 3
opts_s = opts.make_uri_params
opensearch_uri = URI.parse( "#{ base_uri }#{ q }?appid=#{ CINII_APPID }&#{ opts_s }" )
response = http_get( opensearch_uri )
cont = response.body
open( cache_file, "w" ){|io| io.print cont }
end
data = {}
parser = LibXML::XML::Parser.string( cont )
doc = parser.parse
# ref. http://ci.nii.ac.jp/info/ja/if_opensearch_auth.html
data[ :q ] = nrid
data[ :link ] = doc.find( "//atom:id", "atom:http://www.w3.org/2005/Atom" )[0].content.gsub( /&(format=atom|appid=#{ CINII_APPID })\b/, "" )
data[ :totalResults ] = doc.find( "//opensearch:totalResults" )[0].content.to_i
entries = doc.find( "//atom:entry", "atom:http://www.w3.org/2005/Atom" )
data[ :entries ] = []
entries.each do |e|
title = e.find( "./atom:title", "atom:http://www.w3.org/2005/Atom" )[0].content
url = e.find( "./atom:id", "atom:http://www.w3.org/2005/Atom" )[0].content
author = e.find( ".//atom:author/atom:name", "atom:http://www.w3.org/2005/Atom" ).to_a.map{|name| name.content }.join( "; " )
pubname = e.find( "./prism:publicationName", "prism:http://prismstandard.org/namespaces/basic/2.0/" )[0]
if pubname.nil?
pubname = e.find( "./dc:publisher", "dc:http://purl.org/dc/elements/1.1/" )[0]
pubname = pubname.content if pubname
else
pubname = pubname.content
end
pubdate = e.find( "./prism:publicationDate", "prism:http://prismstandard.org/namespaces/basic/2.0/" )[0] #.content
pubdate = pubdate.nil? ? "" : pubdate.content
description = e.find( "./atom:content", "atom:http://www.w3.org/2005/Atom" )[0]
description = description.nil? ? "" : description.content
data[ :entries ] << {
:title => title,
:url => url,
:author => author,
:publicationName => pubname,
:publicationDate => pubdate,
:description => description,
}
end
data
end
def cinii_author_nrid_search( name, naid = [] )
data = cinii_author_search( name )
result = data
if not naid.empty?
entries = []
result[ :entries ].each do |author|
#p author[ :url ]
if /nrid\/(.+)\Z/ =~ author[ :url ]
nrid = $1
if cinii_nrid_search( nrid )[ :entries ].find{|e| naid.include?( e[ :url ] ) }
entries << author
end
end
end
result[ :entries ] = entries
end
result
end
# NDL Porta Opensearch
def ndl_search( keyword, opts = {} )
base_uri = "http://api.porta.ndl.go.jp/servicedp/opensearch"
q = URI.encode_www_form_component( keyword )
cont = nil
cache_file = cache_xml( "ndl", q, opts[:start] )
if File.exist?( cache_file ) and ( Time.now - File.mtime( cache_file ) ) < CACHE_TIME
cont = open( cache_file ){|io| io.read }
else
opts[ :format ] = "atom"
opts[ :dpgroupid ] = "ndl"
if opts[ :start ]
opts[ :idx ] = opts[ :start ].dup
opts.delete( :start )
end
opts_s = opts.make_uri_params
opensearch_uri = URI.parse( "#{ base_uri }?any=#{ q }&#{ opts_s }" )
response = http_get( opensearch_uri )
cont = response.body
open( cache_file, "w" ){|io| io.print cont }
end
data = {}
parser = LibXML::XML::Parser.string( cont )
doc = parser.parse
data[ :q ] = keyword
data[ :link ] = "http://porta.ndl.go.jp/cgi-bin/openurl.cgi"
data[ :totalResults ] = doc.find( "//openSearch:totalResults", "http://a9.com/-/spec/opensearchrss/1.0/" )[0].content.to_i
entries = doc.find( "//item" )
data[ :entries ] = []
entries.each do |e|
dpid = e.find( "./dcndl_porta:dpid", "http://ndl.go.jp/dcndl/dcndl_porta/" )[0].content
title = e.find( "./title" )[0].content
url = e.find( "./link" )[0].content
author = e.find( ".//author" )
if author and author[0]
author = author[0].content
else
author = ""
end
source = e.find( "./source" )
if source and source[0]
source = source[0].content
else
source = ""
end
publicationName = e.find( "dcterms:bibliographicCitation", "http://purl.org/dc/terms/" )
if publicationName and publicationName[0]
publicationName = publicationName[0].content
else
publicationName = nil
end
date = e.find( "./dcterms:issued", "http://purl.org/dc/terms/" )
if date and date[0]
date = date[0].content
else
date = e.find( "./dcterms:modified", "http://purl.org/dc/terms/" )
if date and date[0]
date = date[0].content
else
date = nil
end
end
publisher = e.find( "./dc:publisher", "http://purl.org/dc/elements/1.1/" )
if publisher and publisher[0]
publisher = publisher[0].content
else
publisher = nil
end
description = e.find( "./description" )
if description and description[0] and dpid != "zassaku"
description = description[0].content
else
description = ""
end
if publicationName.nil? or publicationName.empty?
publicationName = [ source, publisher ].select{|type|
not type.nil? and not type.empty?
}.join( "; " )
end
isbn = e.find( "./dc:identifier[@xsi:type='dcndl:ISBN']",
[ "dc:http://purl.org/dc/elements/1.1/",
"xsi:http://www.w3.org/2001/XMLSchema-instance",
"dcndl:http://ndl.go.jp/dcndl/terms/" ] )[0]
isbn = isbn.content if isbn
data[ :entries ] << {
:title => title,
:url => url,
:author => author,
:source => source,
:date => date,
:publicationDate => date,
:publisher => publisher,
:publicationName => publicationName,
:description => description,
:dpid => dpid,
:isbn => isbn,
}
end
data
end
# NDLサーチ版:
def iss_ndl_search( keyword, opts = {} )
base_uri = "http://iss.ndl.go.jp/api/opensearch"
q = URI.encode_www_form_component( keyword )
cont = nil
cache_file = cache_xml( "ndl", q, opts[:start] )
if File.exist?( cache_file ) and ( Time.now - File.mtime( cache_file ) ) < CACHE_TIME
cont = open( cache_file ){|io| io.read }
else
opts[ :dpgroupid ] = "ndl"
if opts[ :start ]
opts[ :idx ] = opts[ :start ]
opts.delete( :start )
end
opts_s = opts.make_uri_params
opensearch_uri = URI.parse( "#{ base_uri }?any=#{ q }&#{ opts_s }" )
response = http_get( opensearch_uri )
cont = response.body
open( cache_file, "w" ){|io| io.print cont }
end
data = {}
#STDERR.puts cont
parser = LibXML::XML::Parser.string( cont )
doc = parser.parse
data[ :q ] = keyword
data[ :link ] = doc.find( "//link" )[0].content.sub( /\/api\/opensearch/, '/books' ).sub( /&dpgroupid=ndl/, "" )
data[ :totalResults ] = doc.find( "//openSearch:totalResults", "http://a9.com/-/spec/opensearchrss/1.0/" )[0].content.to_i
entries = doc.find( "//item" )
data[ :entries ] = []
entries.each do |e|
#dpid = e.find( "./dcndl:dpid", "http://ndl.go.jp/dcndl/dcndl_porta/" )[0].content
title = e.find( "./title" )[0].content
url = e.find( "./link" )[0].content
author = e.find( ".//author" )
if author and author[0]
author = author[0].content
else
author = ""
end
creators = e.find( ".//dc:creator", "http://purl.org/dc/elements/1.1/" )
creator = creators.map{|e| e.content }.join( ", " )
source = e.find( "./source" )
if source and source[0]
source = source[0].content
else
source = ""
end
publicationName = e.find( "./dcndl:publicationName", "dcndl:http://ndl.go.jp/dcndl/terms/" )
if publicationName and publicationName[0]
publicationName = publicationName[0].content
else
publicationName = publicationName[0]
end
volume = e.find( "./dcndl:publicationVolume", "dcndl:http://ndl.go.jp/dcndl/terms/" )
if volume and volume[0]
volume = volume[0].content
end
date = e.find( "./dcterms:issued", "http://purl.org/dc/terms/" )
if date and date[0]
date = date[0].content
else
date = e.find( "./dcterms:modified", "http://purl.org/dc/terms/" )
if date and date[0]
date = date[0].content
else
date = nil
end
end
publisher = e.find( "./dc:publisher", "http://purl.org/dc/elements/1.1/" )
if publisher and publisher[0]
publisher = publisher[0].content
else
publisher = nil
end
description = e.find( "./description" )
if description and description[0] #and dpid != "zassaku"
description = description[0].content
else
description = ""
end
isbn = e.find( "./dc:identifier[@xsi:type='dcndl:ISBN']",
[ "dc:http://purl.org/dc/elements/1.1/",
"xsi:http://www.w3.org/2001/XMLSchema-instance",
"dcndl:http://ndl.go.jp/dcndl/terms/" ] )[0]
isbn = isbn.content if isbn
data[ :entries ] << {
:title => title,
:url => url,
:author => author,
:creator => creator,
:source => source,
:date => date,
:publicationDate => date,
:publisher => publisher,
:publicationName => publicationName,
:description => description,
#:dpid => dpid,
:isbn => isbn,
:volume => volume,
}
end
data
end
# レファ協API via NDL PORTA Opensearch
def crd_search2( keyword, opts = {} )
base_uri = "http://api.porta.ndl.go.jp/servicedp/opensearch"
q = URI.encode_www_form_component( keyword )
cont = nil
cache_file = cache_xml( "crd2", q, opts[:start] )
if File.exist?( cache_file ) and ( Time.now - File.mtime( cache_file ) ) < CACHE_TIME
cont = open( cache_file ){|io| io.read }
else
opts[ :format ] = "atom"
opts[ :dpid ] = "refkyo"
opts_s = opts.make_uri_params
opensearch_uri = URI.parse( "#{ base_uri }?any=#{ q }&#{ opts_s }" )
response = http_get( opensearch_uri )
cont = response.body
open( cache_file, "w" ){|io| io.print cont }
end
data = {}
parser = LibXML::XML::Parser.string( cont )
doc = parser.parse
data[ :q ] = keyword
data[ :link ] = "http://iss.ndl.go.jp/"
data[ :totalResults ] = doc.find( "//openSearch:totalResults", "http://a9.com/-/spec/opensearchrss/1.0/" )[0].content.to_i
entries = doc.find( "//item" )
data[ :entries ] = []
entries.each do |e|
dpid = e.find( "./dcndl_porta:dpid", "http://ndl.go.jp/dcndl/terms/" )[0].content
title = e.find( "./title" )[0].content
url = e.find( "./link" )[0].content
author = e.find( ".//author" )
if author and author[0]
author = author[0].content
else
author = ""
end
source = e.find( "./source" )
if source and source[0]
source = source[0].content
else
source = ""
end
publicationName = e.find( "dcterms:bibliographicCitation", "http://purl.org/dc/terms/" )
if publicationName and publicationName[0]
publicationName = publicationName[0].content
else
publicationName = nil
end
date = e.find( "./dcterms:issued", "http://purl.org/dc/terms/" )
if date and date[0]
date = date[0].content
else
date = e.find( "./dcterms:modified", "http://purl.org/dc/terms/" )
if date and date[0]
date = date[0].content
else
date = nil
end
end
publisher = e.find( "./dc:publisher", "http://purl.org/dc/elements/1.1/" )
if publisher and publisher[0]
publisher = publisher[0].content
else
publisher = nil
end
description = e.find( "./description" )
if description and description[0] and dpid != "zassaku"
description = description[0].content
else
description = ""
end
if publicationName.nil? or publicationName.empty?
publicationName = [ source, publisher ].select{|e|
not e.nil? and not e.empty?
}.join( "; " )
end
data[ :entries ] << {
:title => title,
:url => url,
:author => author,
:source => source,
:date => date,
:publicationDate => date,
:publisher => publisher,
:publicationName => publicationName,
:description => description,
:dpid => dpid,
}
end
data
end
# レファレンス協同データベースAPI
def crd_search( keyword, opts = {} )
require "htmlentities"
base_uri = "http://crd.ndl.go.jp/refapi/servlet/refapi.RSearchAPI"
q = URI.encode_www_form_component( keyword )
opts[ :query_logic ] = "2"
opts_s = opts.make_uri_params
query = "01_" + q + ".02_" + q
opts_s = "&" + opts_s if not opts_s.empty?
uri = URI.parse( "#{ base_uri }?query=#{ query }#{ opts_s }" )
cont = nil
cache_file = cache_xml( "crd", q, opts[:start] )
if File.exist?( cache_file ) and ( Time.now - File.mtime( cache_file ) ) < CACHE_TIME
cont = open( cache_file ){|io| io.read }
else
response = http_get( uri )
cont = response.body
open( cache_file, "w" ){|io| io.print cont }
end
data = {}
parser = LibXML::XML::Parser.string( cont )
doc = nil
begin
doc = parser.parse
rescue LibXML::XML::Error => e
begin
parser = LibXML::XML::Parser.string( NKF.nkf( "-Ww", cont ) )
doc = parser.parse
rescue
File.unlink( cache_file )
raise e
end
end
# ref. http://ci.nii.ac.jp/info/ja/if_opensearch.html
data[ :q ] = keyword
#data[ :link ] = doc.find( "//atom:id", "atom:http://www.w3.org/2005/Atom" )[0].content.sub( /&format=atom\b/, "" )
data[ :link ] = "http://crd.ndl.go.jp/" # TODO: リンク先を適宜補完すること。
data[ :totalResults ] = doc.find( "//crd:hit_num", "crd:http://crd.ndl.go.jp/refapi/servlet/refapi.RSearchAPI" )[0].content.to_i
entries = doc.find( "//crd:result", "crd:http://crd.ndl.go.jp/refapi/servlet/refapi.RSearchAPI" )
data[ :entries ] = []
entries.each do |e|
title = e.find( "./crd:QUESTION", "crd:http://crd.ndl.go.jp/refapi/servlet/refapi.RSearchAPI" )[0].content
url = e.find( "./crd:URL", "crd:http://crd.ndl.go.jp/refapi/servlet/refapi.RSearchAPI" )[0].content
author = e.find( "./crd:LIB-NAME", "crd:http://crd.ndl.go.jp/refapi/servlet/refapi.RSearchAPI" ).to_a.map{|name| name.content }.join( "; " )
description = e.find( "./crd:ANSWER", "crd:http://crd.ndl.go.jp/refapi/servlet/refapi.RSearchAPI" )[0].content
if description.nil? or description.empty?
description = e.find( "./crd:ANS-PROC", "crd:http://crd.ndl.go.jp/refapi/servlet/refapi.RSearchAPI" )[0].content
end
pubdate = e.find( "./crd:CRT-DATE", "crd:http://crd.ndl.go.jp/refapi/servlet/refapi.RSearchAPI" )[0]
pubdate = pubdate ? pubdate.content : e.find( "./crd:REG-DATE", "crd:http://crd.ndl.go.jp/refapi/servlet/refapi.RSearchAPI" )[0].content
solution = e.find( "./crd:SOLUTION", "crd:http://crd.ndl.go.jp/refapi/servlet/refapi.RSearchAPI" )[0]
solution = solution ? solution.content : nil
data[ :entries ] << {
:title => title,
:url => url,
:author => author,
:description => description,
:publicationDate => pubdate,
:solution => solution,
}
end
data
end
# WorldCat Basic API (Opensearch)
WORLDCAT_BASIC_WSKEY = "5lIR8i5bSQQNg4Xb3ro6QbOzXiGSs6PrGGJ02BKolP9qTUQRcui2Ze9AsQIlM8IzV0E9XMcrWWieWvrM"
def worldcat_search( keyword, opts = {} )
base_uri = "http://worldcat.org/webservices/catalog/search/opensearch"
q = URI.encode_www_form_component( keyword )
cont = nil
cache_file = cache_xml( "worldcat", q, opts[:start] )
if File.exist?( cache_file ) and ( Time.now - File.mtime( cache_file ) ) < CACHE_TIME
cont = open( cache_file ){|io| io.read }
else
opts[ :format ] = "atom"
opts[ :wskey ] = WORLDCAT_BASIC_WSKEY
opts_s = opts.make_uri_params
opensearch_uri = URI.parse( "#{ base_uri }?q=#{ q }&#{ opts_s }" )
response = http_get( opensearch_uri )
cont = response.body
open( cache_file, "w" ){|io| io.print cont }
end
data = {}
parser = LibXML::XML::Parser.string( cont )
doc = parser.parse
# ref. http://ci.nii.ac.jp/info/ja/if_opensearch.html
data[ :q ] = keyword
# data[ :link ] = doc.find( "//atom:id", "atom:http://www.w3.org/2005/Atom" )[0].content.sub( /&format=atom\b/, "" ).sub( /&wskey=\w+/, "" )
data[ :link ] = "http://www.worldcat.org/search?q=#{ q }"
#STDERR.puts q.inspect
#STDERR.puts doc.find( "//opensearch:totalResults" )[0].inspect
#STDERR.puts doc.find( "//opensearch:totalResults" )[0].class
totalResults = doc.find( "//opensearch:totalResults" )[0]
if totalResults
data[ :totalResults ] = doc.find( "//opensearch:totalResults" )[0].content.to_i
else
data[ :totalResults ] = 0
end
entries = doc.find( "//atom:entry", "atom:http://www.w3.org/2005/Atom" )
data[ :entries ] = []
entries.each do |e|
title = e.find( "./atom:title", "atom:http://www.w3.org/2005/Atom" )[0].content
url = e.find( "./atom:id", "atom:http://www.w3.org/2005/Atom" )[0].content
author = e.find( ".//atom:author/atom:name", "atom:http://www.w3.org/2005/Atom" ).to_a.map{|name| name.content }.join( "; " )
content = e.find( "./atom:content", "atom:http://www.w3.org/2005/Atom" )[0]
isbn = nil
e.find( "./dc:identifier", "dc:http://purl.org/dc/elements/1.1/" ).each do |identifier|
if identifier.content =~ /\Aurn:ISBN:(\d{9,12}[\dx])\Z/o
isbn = $1
break
end
end
data[ :entries ] << {
:title => title,
:url => url,
:author => author,
:content => content,
:publicationName => content,
:isbn => isbn,
}
end
data
end
# JAWikipedia API
def wikipedia_ja_search( keyword, opts = {} )
base_uri = "http://ja.wikipedia.org/w/api.php"
q = URI.encode_www_form_component( keyword )
cont = nil
cache_file = cache_xml( "jawikipedia", q, opts[:start] )
if File.exist?( cache_file ) and ( Time.now - File.mtime( cache_file ) ) < CACHE_TIME
cont = open( cache_file ){|io| io.read }
else
opts[ :action ] = "query"
opts[ :list ] = "search"
opts[ :format ] = "xml"
opts_s = opts.make_uri_params
search_uri = URI.parse( "#{ base_uri }?srsearch=#{ q }&#{ opts_s }" )
response = http_get( search_uri )
cont = response.body
open( cache_file, "w" ){|io| io.print cont }
end
data = {}
parser = LibXML::XML::Parser.string( cont )
doc = parser.parse
# ref. http://ci.nii.ac.jp/info/ja/if_opensearch.html
data[ :q ] = keyword
# data[ :link ] = doc.find( "//atom:id", "atom:http://www.w3.org/2005/Atom" )[0].content.sub( /&format=atom\b/, "" ).sub( /&wskey=\w+/, "" )
data[ :link ] = "http://ja.wikipedia.org/wiki/Sepecial:Search/#{ q }"
data[ :totalResults ] = doc.find_first( "//searchinfo" ).attributes[ "totalhits" ].to_i
entries = doc.find( "//p" )
data[ :entries ] = []
entries.each do |e|
title = e.attributes[ "title" ]
url = "http://ja.wikipedia.org/wiki/#{ URI.encode_www_form_component( title ) }"
content = e.attributes[ "snippet" ]
timestamp = e.attributes[ "timestamp" ]
data[ :entries ] << {
:title => title,
:url => url,
:content => content,
:publicationName => content,
:publicationDate => timestamp,
}
end
data
end
# EPI SRU API
def epi_search( keyword, opts = {} )
base_uri = "http://dl.nier.go.jp/epi"
client_base_uri = "http://dl.nier.go.jp/epi-search/sru-gw.rb"
q = URI.encode_www_form_component( keyword.split.join( " AND " ) )
cont = nil
cache_file = cache_xml( "epi", q, opts[:start] )
#p File.mtime( cache_file )
if File.exist?( cache_file ) and ( Time.now - File.mtime( cache_file ) ) < CACHE_TIME
cont = open( cache_file ){|io| io.read }
else
opts[ :version ] = "1.1"
opts[ :operation ] = "searchRetrieve"
opts[ :maximumRecords ] ||= 20
opts[ :startRecord ] ||= opts[ :start ] if opts[ :start ]
#p opts
params = [ :operation, :version, :query, :startRecord, :maximumRecords, :recordPacking, :recordSchema, :recordXPath, :resultSetTTL, :sortKeys, :stylesheet, :extraRequestData ].map do |e|
opts[ e ] ? "#{ e }=#{ URI.encode_www_form_component( opts[e].to_s ) }" : nil
end.compact.join( "&" )
#p params