153 lines
3.2 KiB
Ruby
153 lines
3.2 KiB
Ruby
# encoding: UTF-8
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require 'common/typhoeus_cache'
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require 'common/browser/actions'
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require 'common/browser/options'
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class Browser
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extend Browser::Actions
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include Browser::Options
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OPTIONS = [
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:available_user_agents,
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:basic_auth,
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:cache_ttl,
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:max_threads,
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:user_agent,
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:user_agent_mode,
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:proxy,
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:proxy_auth
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]
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@@instance = nil
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attr_reader :hydra, :config_file, :cache_dir
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# @param [ Hash ] options
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#
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# @return [ Browser ]
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def initialize(options = {})
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@config_file = options[:config_file] || CONF_DIR + '/browser.conf.json'
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@cache_dir = options[:cache_dir] || CACHE_DIR + '/browser'
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load_config()
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override_config(options)
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unless @hydra
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@hydra = Typhoeus::Hydra.new(max_concurrency: self.max_threads)
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end
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@cache = TyphoeusCache.new(@cache_dir)
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@cache.clean
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Typhoeus::Config.cache = @cache
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end
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private_class_method :new
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# @param [ Hash ] options
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#
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# @return [ Browser ]
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def self.instance(options = {})
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unless @@instance
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@@instance = new(options)
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end
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@@instance
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end
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def self.reset
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@@instance = nil
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end
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#
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# If an option was set but is not in the new config_file
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# it's value is kept
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#
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# @param [ String ] config_file
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#
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# @return [ void ]
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def load_config(config_file = nil)
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@config_file = config_file || @config_file
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if File.symlink?(@config_file)
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raise "[ERROR] Config file is a symlink."
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else
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data = JSON.parse(File.read(@config_file))
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end
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OPTIONS.each do |option|
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option_name = option.to_s
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unless data[option_name].nil?
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self.send(:"#{option_name}=", data[option_name])
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end
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end
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end
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# @param [ String ] url
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# @param [ Hash ] params
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#
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# @return [ Typhoeus::Request ]
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def forge_request(url, params = {})
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Typhoeus::Request.new(url, merge_request_params(params))
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end
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# @param [ Hash ] params
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#
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# @return [ Hash ]
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def merge_request_params(params = {})
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params = Browser.append_params_header_field(
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params,
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'User-Agent',
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self.user_agent
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)
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if @proxy
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params = params.merge(proxy: @proxy)
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if @proxy_auth
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params = params.merge(proxyauth: @proxy_auth)
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end
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end
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if @basic_auth
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params = Browser.append_params_header_field(
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params,
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'Authorization',
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@basic_auth
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)
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end
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# Used to enable the cache system if :cache_ttl > 0
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unless params.has_key?(:cache_ttl)
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params = params.merge(cache_ttl: @cache_ttl)
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end
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# Disable SSL-Certificate checks
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params.merge!(ssl_verifypeer: false)
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params.merge!(ssl_verifyhost: 0)
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params.merge!(cookiejar: @cache_dir + '/cookie-jar')
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params.merge!(cookiefile: @cache_dir + '/cookie-jar')
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params
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end
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private
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# @param [ Hash ] params
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# @param [ String ] field
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# @param [ Mixed ] field_value
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#
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# @return [ Array ]
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def self.append_params_header_field(params = {}, field, field_value)
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if !params.has_key?(:headers)
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params = params.merge(:headers => { field => field_value })
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elsif !params[:headers].has_key?(field)
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params[:headers][field] = field_value
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end
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params
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end
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end
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