Class: Bundler::Fetcher::Downloader

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(connection, redirect_limit) ⇒ Downloader

Returns a new instance of Downloader.


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# File 'lib/bundler/fetcher/downloader.rb', line 9

def initialize(connection, redirect_limit)
  @connection = connection
  @redirect_limit = redirect_limit
end

Instance Attribute Details

#connectionObject (readonly)

Returns the value of attribute connection


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# File 'lib/bundler/fetcher/downloader.rb', line 6

def connection
  @connection
end

#redirect_limitObject (readonly)

Returns the value of attribute redirect_limit


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# File 'lib/bundler/fetcher/downloader.rb', line 7

def redirect_limit
  @redirect_limit
end

Instance Method Details

#fetch(uri, headers = {}, counter = 0) ⇒ Object

Raises:


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# File 'lib/bundler/fetcher/downloader.rb', line 14

def fetch(uri, headers = {}, counter = 0)
  raise HTTPError, "Too many redirects" if counter >= redirect_limit

  response = request(uri, headers)
  Bundler.ui.debug("HTTP #{response.code} #{response.message} #{uri}")

  case response
  when Net::HTTPSuccess, Net::HTTPNotModified
    response
  when Net::HTTPRedirection
    new_uri = Bundler::URI.parse(response["location"])
    if new_uri.host == uri.host
      new_uri.user = uri.user
      new_uri.password = uri.password
    end
    fetch(new_uri, headers, counter + 1)
  when Net::HTTPRequestedRangeNotSatisfiable
    new_headers = headers.dup
    new_headers.delete("Range")
    new_headers["Accept-Encoding"] = "gzip"
    fetch(uri, new_headers)
  when Net::HTTPRequestEntityTooLarge
    raise FallbackError, response.body
  when Net::HTTPTooManyRequests
    raise TooManyRequestsError, response.body
  when Net::HTTPUnauthorized
    raise BadAuthenticationError, uri.host if uri.userinfo
    raise AuthenticationRequiredError, uri.host
  when Net::HTTPNotFound
    raise FallbackError, "Net::HTTPNotFound: #{URICredentialsFilter.credential_filtered_uri(uri)}"
  else
    raise HTTPError, "#{response.class}#{": #{response.body}" unless response.body.empty?}"
  end
end

#request(uri, headers) ⇒ Object


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# File 'lib/bundler/fetcher/downloader.rb', line 49

def request(uri, headers)
  validate_uri_scheme!(uri)

  Bundler.ui.debug "HTTP GET #{uri}"
  req = Net::HTTP::Get.new uri.request_uri, headers
  if uri.user
    user = CGI.unescape(uri.user)
    password = uri.password ? CGI.unescape(uri.password) : nil
    req.basic_auth(user, password)
  end
  connection.request(uri, req)
rescue NoMethodError => e
  raise unless ["undefined method", "use_ssl="].all? {|snippet| e.message.include? snippet }
  raise LoadError.new("cannot load such file -- openssl")
rescue OpenSSL::SSL::SSLError
  raise CertificateFailureError.new(uri)
rescue *HTTP_ERRORS => e
  Bundler.ui.trace e
  case e.message
  when /host down:/, /getaddrinfo: nodename nor servname provided/
    raise NetworkDownError, "Could not reach host #{uri.host}. Check your network " \
      "connection and try again."
  else
    raise HTTPError, "Network error while fetching #{URICredentialsFilter.credential_filtered_uri(uri)}" \
      " (#{e})"
  end
end