Class: IronWorkerNG::Fetcher

Inherits:
Object
  • Object
show all
Defined in:
lib/iron_worker_ng/fetcher.rb

Class Method Summary collapse

Class Method Details

.exists?(url) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/iron_worker_ng/fetcher.rb', line 12

def self.exists?(url)
  if IronWorkerNG::Fetcher.remote?(url)
    url = IronWorkerNG::Fetcher.fix_github_url(url)

    uri = URI.parse(url)

    http = Net::HTTP.new(uri.host, uri.port)

    if uri.scheme == 'https'
      http.use_ssl = true
      http.verify_mode = OpenSSL::SSL::VERIFY_NONE
    end

    response = http.request(Net::HTTP::Head.new(uri.request_uri))

    if response.kind_of?(Net::HTTPRedirection)
      return IronWorkerNG::Fetcher.exists?(response['location'])
    end

    return response.code.to_i == 200
  else
    File.exists?(url)
  end
end

.fetch(url, &block) ⇒ Object 



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# File 'lib/iron_worker_ng/fetcher.rb', line 49

def self.fetch(url, &block)
  if IronWorkerNG::Fetcher.remote?(url)
    url = IronWorkerNG::Fetcher.fix_github_url(url)

    uri = URI.parse(url)

    http = Net::HTTP.new(uri.host, uri.port)

    if uri.scheme == 'https'
      http.use_ssl = true
      http.verify_mode = OpenSSL::SSL::VERIFY_NONE
    end

    response = http.request(Net::HTTP::Get.new(uri.request_uri))

    if response.kind_of?(Net::HTTPRedirection)
      IronWorkerNG::Fetcher.fetch(response['location'], &block)

      return
    end

    block.call(response.body) unless block.nil?
  else
    unless File.exists?(url)
      block.call(nil) unless block.nil?

      return
    end

    block.call(File.read(url)) unless block.nil?
  end
end

.fetch_to_file(url, &block) ⇒ Object 



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# File 'lib/iron_worker_ng/fetcher.rb', line 82

def self.fetch_to_file(url, &block)
  if IronWorkerNG::Fetcher.remote?(url)
    IronWorkerNG::Fetcher.fetch(url) do |data|
      unless data.nil?
        tmp_dir_name = ::Dir.tmpdir + '/' + ::Dir::Tmpname.make_tmpname('iron-worker-ng-', 'http')

        ::Dir.mkdir(tmp_dir_name)

        File.open(tmp_dir_name + '/' + File.basename(url), 'wb') do |f|
          f.write(data)
        end

        block.call(tmp_dir_name + '/' + File.basename(url)) unless block.nil?

        FileUtils.rm_rf(tmp_dir_name)
      end
    end
  else
    unless File.exists?(url)
      block.call(nil) unless block.nil?

      return
    end

    block.call(url) unless block.nil?
  end
end

.fix_github_url(url) ⇒ Object 



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# File 'lib/iron_worker_ng/fetcher.rb', line 37

def self.fix_github_url(url)
  if url.start_with?('http://github.com/') || url.start_with?('https://github.com/')
    fixed_url = url.sub('//github.com/', '//raw.github.com/').sub('/blob/', '/')

    IronCore::Logger.info 'IronWorkerNG', "Fixed github link with url='#{url}' to url='#{fixed_url}'"

    return fixed_url
  end

  url
end

.remote?(url) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/iron_worker_ng/fetcher.rb', line 8

def self.remote?(url)
  url.start_with?('http://') || url.start_with?('https://')
end