Method: WikiBot::Bot#query_api

Defined in:
lib/wikibot/core/bot.rb

#query_api(method, raw_data = {}) ⇒ Object 



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# File 'lib/wikibot/core/bot.rb', line 52

def query_api(method, raw_data = {})
  # Send a query to the API and handle the response
  url = @config.api
  raw_data = raw_data.to_openhash

  raw_data[:format] = :xml if raw_data.format.nil?

  # Setup cookie headers for the request
  @curl.headers["Cookie"] = @cookies.inject([]) do |memo, pair|
    key, val = pair
    memo.push(CGI::escape(key) + "=" + CGI::escape(val))
  end.join("; ") unless @cookies.nil?

  response_xml = {}

  while true
    if method == :post
      data = raw_data.to_post_fields
    elsif method == :get
      url = url.chomp("?") + "?" + raw_data.to_querystring
      data = nil
    end

    @curl.url = url
    @curl.headers["Expect"] = nil # MediaWiki will give a 417 error if Expect is set

    @curl.on_debug { |type, data| p data } if @debug
    
    @gzip = false
    @curl.on_header do |data|
      header, text = data.split(":").map(&:strip)
      if header == "Set-Cookie"
        # If Set-Cookie headers are given in the response, set the cookies
        parts = text.split(";")
        cookie_name, cookie_value = parts[0].split("=")
        @cookies[cookie_name] = cookie_value
      elsif header == "Content-Encoding"
        # If the respons is gzip encoded we'll have to decode it before use
        @gzip = true if text == "gzip"
      end
      data.length
    end

    params = ["http_#{method}".to_sym]
    params.push(*data) unless data.nil? or (data.is_a? Array and data.empty?)
    @curl.send(*params)
    @api_hits += 1

    raise CurbError.new(@curl) unless @curl.response_code == 200
    
    body = @gzip ? Zlib::GzipReader.new(StringIO.new(@curl.body_str)).read : @curl.body_str 

    xml = XmlSimple.xml_in(body, {'ForceArray' => false})
    raise APIError.new(xml['error']['code'], xml['error']['info']) if xml['error']

    response_xml.deep_merge! xml
    break unless xml['query-continue']
    raw_data.merge! xml['query-continue'][xml['query-continue'].keys.first]
  end

  response_xml.to_openhash
end