Class: Atig::BasicTwitter

Inherits:
Object
  • Object
show all
Defined in:
lib/atig/basic_twitter.rb

Overview

from tig.rb

Direct Known Subclasses

SearchTwitter, Twitter

Defined Under Namespace

Classes: APIFailed

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(context, api_base) ⇒ BasicTwitter

Returns a new instance of BasicTwitter.



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# File 'lib/atig/basic_twitter.rb', line 15

def initialize(context, api_base)
  @log   = context.log
  @opts  = context.opts
  @api_base = api_base
  @http  = Atig::Http.new @log

  @limit = @remain = 150
end

Instance Attribute Details

#limit ⇒ Object (readonly)

Returns the value of attribute limit.



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# File 'lib/atig/basic_twitter.rb', line 11

def limit
  @limit
end

#remain ⇒ Object (readonly)

Returns the value of attribute remain.



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# File 'lib/atig/basic_twitter.rb', line 11

def remain
  @remain
end

#reset ⇒ Object (readonly)

Returns the value of attribute reset.



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# File 'lib/atig/basic_twitter.rb', line 11

def reset
  @reset
end

Class Method Details

.http_methods(*methods) ⇒ Object 



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# File 'lib/atig/basic_twitter.rb', line 98

def self.http_methods(*methods)
  methods.each do |m|
    self.module_eval <<END
      def #{m}(path, query = {}, opts = {})
        opts.update( :method => :#{m})
        api path, query, opts
      end
END
  end
end

Instance Method Details

#api(path, query = {}, opts = {}) ⇒ Object 



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# File 'lib/atig/basic_twitter.rb', line 24

def api(path, query = {}, opts = {})
  path.sub!(%r{\A/+}, "")

  uri = api_base
  uri.path += path
  uri.path += ".json" if path != "users/username_available"
  uri.query = query.to_query_str unless query.empty?

  header      = {}

  begin
    ret = request(uri, opts)
  rescue OpenSSL::SSL::SSLError => e
    @log.error e.inspect
    raise e.inspect
  end

  if ret["X-RateLimit-Limit"] then
    hourly_limit = ret["X-RateLimit-Limit"].to_i
    unless hourly_limit.zero?
      if @limit != hourly_limit
        msg = "The rate limit per hour was changed: #{@limit} to #{hourly_limit}"
        @log.info msg
        @limit = hourly_limit
      end
    end
  end

  if ret["X-RateLimit-Remaining"] then
    @remain = ret["X-RateLimit-Remaining"].to_i
    @log.debug "IP based limit: #{@remain}"
  end

  if ret["X-RateLimit-Reset"] then
    @reset = ret["X-RateLimit-Reset"].to_i
    @log.debug "RateLimit Reset: #{@reset}"
  end

  case ret
  when Net::HTTPOK # 200
    # Avoid Twitter's invalid JSON
    json = ret.body.strip.sub(/\A(?:false|true)\z/, "[\\&]")

    res = JSON.parse(json)
    if res.is_a?(Hash) && res["error"] # and not res["response"]
      if @error != res["error"]
        @error = res["error"]
        log @error
      end
      raise APIFailed, res["error"]
    end

    TwitterStruct.make(res)
  when Net::HTTPNoContent,  # 204
    Net::HTTPNotModified # 304
    []
  when Net::HTTPBadRequest # 400: exceeded the rate limitation
    if ret.key?("X-RateLimit-Reset")
      @log.info "waiting for rate limit reset"
      s = ret["X-RateLimit-Reset"].to_i - Time.now.to_i
      if s > 0
        sleep (s > 60 * 10) ? 60 * 10 : s # 10 分に一回はとってくるように
      end
    end
    raise APIFailed, "#{ret.code}: #{ret.message}"
  when Net::HTTPUnauthorized # 401
    raise APIFailed, "#{ret.code}: #{ret.message}"
  else
    raise APIFailed, "Server Returned #{ret.code} #{ret.message}"
  end
rescue Errno::ETIMEDOUT, JSON::ParserError, IOError, Timeout::Error, Errno::ECONNRESET => e
  raise APIFailed, e.inspect
end