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executable file 117 lines (98 sloc) 3.13 kB
#!/usr/bin/env ruby
# -*- coding: utf-8 -*-
require "json"
require 'atig/twitter_struct'
require 'atig/http'
module Atig
# from tig.rb
class BasicTwitter
attr_reader :limit, :remain, :reset
class APIFailed < StandardError; end
def initialize(context, api_base)
@log = context.log
@opts = context.opts
@api_base = api_base
@http = Atig::Http.new @log
@limit = @remain = 150
end
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
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
http_methods :get, :post, :put, :delete
private
def api_base
URI(@opts.send @api_base)
end
end
end
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