Module: BaiduWeb

Defined in:
lib/baidu_web.rb,
lib/baidu_web/record.rb,
lib/baidu_web/version.rb,
lib/baidu_web/extension_key.rb

Defined Under Namespace

Classes: ExtensionKey, Record

Constant Summary collapse

VERSION = 
"0.2.1"

Class Method Summary collapse

Class Method Details

.search(key_word, options) ⇒ Object 



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# File 'lib/baidu_web.rb', line 16

def search(key_word, options)
	result = {:record_arr => [], :ext_key_arr => [], :source => 'web'}

	#@ic = Iconv.new("UTF-8//IGNORE", "GBK//IGNORE")

	@key_word = key_word
	return result if @key_word.blank?
	#uri parser key word
	# @key_word = CGI.escape(@key_word)

	#determine how many records display on one page. (same as www.baidu.com/?<some params>&rn=50)
	@per_page = options[:per_page]
	@per_page ||= 50

	#get which page of result. (same as www.baidu.com/?<some params>&pn=0)
	@page_index = options[:page_index]
	@page_index ||= 1

	#get the start item index.
	item_index = (@page_index - 1 ) * @per_page

	agent = Mechanize.new

	url = "http://www.baidu.com/s?wd=#{@key_word}&rn=#{@per_page}&pn=#{item_index}"
	#debug: url
	spage = agent.get(url)
	#debug
	# File.open(File.join(File.dirname(__FILE__), 'baidu_result.html'), "w"){|f| f.write(@ic.iconv(spage.body))}

	#doc = Hpricot(@ic.iconv(spage.body))
	doc = Hpricot(spage.body)

	#- this is hack on linux:
	#case1:
	# result_page = @ic.iconv(open("http://www.baidu.com/s?wd=#{@key_word}&rn=#{@per_page}&pn=#{item_index}").read)
	#case2:
	# result_page = ""
	# open("http://www.baidu.com/s?wd=#{@key_word}&rn=#{@per_page}&pn=#{item_index}", "r:utf-8") {|f|
	#   f.each_line do |line|
	#   	 result_page += @ic.iconv(line)
	#   end
	# }

	return result if doc.blank?
  
	result[:record_arr] = extract_item(doc, item_index)
	result[:ext_key_arr] = extract_extension_key(doc)
	#debug
	puts result[:record_arr].size
  
	return result
end