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Diffstat (limited to 'trunk/lib/rubygems/remote_fetcher.rb')
| -rw-r--r-- | trunk/lib/rubygems/remote_fetcher.rb | 341 |
1 files changed, 0 insertions, 341 deletions
diff --git a/trunk/lib/rubygems/remote_fetcher.rb b/trunk/lib/rubygems/remote_fetcher.rb deleted file mode 100644 index 3c747f1d65..0000000000 --- a/trunk/lib/rubygems/remote_fetcher.rb +++ /dev/null @@ -1,341 +0,0 @@ -require 'net/http' -require 'stringio' -require 'time' -require 'uri' - -require 'rubygems' - -## -# RemoteFetcher handles the details of fetching gems and gem information from -# a remote source. - -class Gem::RemoteFetcher - - include Gem::UserInteraction - - ## - # A FetchError exception wraps up the various possible IO and HTTP failures - # that could happen while downloading from the internet. - - class FetchError < Gem::Exception - - ## - # The URI which was being accessed when the exception happened. - - attr_accessor :uri - - def initialize(message, uri) - super message - @uri = uri - end - - def to_s # :nodoc: - "#{super} (#{uri})" - end - - end - - @fetcher = nil - - ## - # Cached RemoteFetcher instance. - - def self.fetcher - @fetcher ||= self.new Gem.configuration[:http_proxy] - end - - ## - # Initialize a remote fetcher using the source URI and possible proxy - # information. - # - # +proxy+ - # * [String]: explicit specification of proxy; overrides any environment - # variable setting - # * nil: respect environment variables (HTTP_PROXY, HTTP_PROXY_USER, - # HTTP_PROXY_PASS) - # * <tt>:no_proxy</tt>: ignore environment variables and _don't_ use a proxy - - def initialize(proxy) - Socket.do_not_reverse_lookup = true - - @connections = {} - @requests = Hash.new 0 - @proxy_uri = - case proxy - when :no_proxy then nil - when nil then get_proxy_from_env - when URI::HTTP then proxy - else URI.parse(proxy) - end - end - - ## - # Moves the gem +spec+ from +source_uri+ to the cache dir unless it is - # already there. If the source_uri is local the gem cache dir copy is - # always replaced. - - def download(spec, source_uri, install_dir = Gem.dir) - if File.writable?(install_dir) - cache_dir = File.join install_dir, 'cache' - else - cache_dir = File.join(ENV['HOME'], '.gem', 'cache') - end - - gem_file_name = "#{spec.full_name}.gem" - local_gem_path = File.join cache_dir, gem_file_name - - FileUtils.mkdir_p cache_dir rescue nil unless File.exist? cache_dir - - source_uri = URI.parse source_uri unless URI::Generic === source_uri - scheme = source_uri.scheme - - # URI.parse gets confused by MS Windows paths with forward slashes. - scheme = nil if scheme =~ /^[a-z]$/i - - case scheme - when 'http' then - unless File.exist? local_gem_path then - begin - say "Downloading gem #{gem_file_name}" if - Gem.configuration.really_verbose - - remote_gem_path = source_uri + "gems/#{gem_file_name}" - - gem = Gem::RemoteFetcher.fetcher.fetch_path remote_gem_path - rescue Gem::RemoteFetcher::FetchError - raise if spec.original_platform == spec.platform - - alternate_name = "#{spec.original_name}.gem" - - say "Failed, downloading gem #{alternate_name}" if - Gem.configuration.really_verbose - - remote_gem_path = source_uri + "gems/#{alternate_name}" - - gem = Gem::RemoteFetcher.fetcher.fetch_path remote_gem_path - end - - File.open local_gem_path, 'wb' do |fp| - fp.write gem - end - end - when nil, 'file' then # TODO test for local overriding cache - begin - FileUtils.cp source_uri.to_s, local_gem_path - rescue Errno::EACCES - local_gem_path = source_uri.to_s - end - - say "Using local gem #{local_gem_path}" if - Gem.configuration.really_verbose - else - raise Gem::InstallError, "unsupported URI scheme #{source_uri.scheme}" - end - - local_gem_path - end - - ## - # Downloads +uri+ and returns it as a String. - - def fetch_path(uri, mtime = nil, head = false) - data = open_uri_or_path(uri, mtime, head) - data = Gem.gunzip data if uri.to_s =~ /gz$/ and not head - data - rescue FetchError - raise - rescue Timeout::Error - raise FetchError.new('timed out', uri) - rescue IOError, SocketError, SystemCallError => e - raise FetchError.new("#{e.class}: #{e}", uri) - end - - ## - # Returns the size of +uri+ in bytes. - - def fetch_size(uri) # TODO: phase this out - response = fetch_path(uri, nil, true) - - response['content-length'].to_i - end - - def escape(str) - return unless str - URI.escape(str) - end - - def unescape(str) - return unless str - URI.unescape(str) - end - - ## - # Returns an HTTP proxy URI if one is set in the environment variables. - - def get_proxy_from_env - env_proxy = ENV['http_proxy'] || ENV['HTTP_PROXY'] - - return nil if env_proxy.nil? or env_proxy.empty? - - uri = URI.parse env_proxy - - if uri and uri.user.nil? and uri.password.nil? then - # Probably we have http_proxy_* variables? - uri.user = escape(ENV['http_proxy_user'] || ENV['HTTP_PROXY_USER']) - uri.password = escape(ENV['http_proxy_pass'] || ENV['HTTP_PROXY_PASS']) - end - - uri - end - - ## - # Normalize the URI by adding "http://" if it is missing. - - def normalize_uri(uri) - (uri =~ /^(https?|ftp|file):/) ? uri : "http://#{uri}" - end - - ## - # Creates or an HTTP connection based on +uri+, or retrieves an existing - # connection, using a proxy if needed. - - def connection_for(uri) - net_http_args = [uri.host, uri.port] - - if @proxy_uri then - net_http_args += [ - @proxy_uri.host, - @proxy_uri.port, - @proxy_uri.user, - @proxy_uri.password - ] - end - - connection_id = net_http_args.join ':' - @connections[connection_id] ||= Net::HTTP.new(*net_http_args) - connection = @connections[connection_id] - - if uri.scheme == 'https' and not connection.started? then - http_obj.use_ssl = true - http_obj.verify_mode = OpenSSL::SSL::VERIFY_NONE - end - - connection.start unless connection.started? - - connection - end - - ## - # Read the data from the (source based) URI, but if it is a file:// URI, - # read from the filesystem instead. - - def open_uri_or_path(uri, last_modified = nil, head = false, depth = 0) - raise "block is dead" if block_given? - - return open(get_file_uri_path(uri)) if file_uri? uri - - uri = URI.parse uri unless URI::Generic === uri - raise ArgumentError, 'uri is not an HTTP URI' unless URI::HTTP === uri - - fetch_type = head ? Net::HTTP::Head : Net::HTTP::Get - response = request uri, fetch_type, last_modified - - case response - when Net::HTTPOK then - head ? response : response.body - when Net::HTTPRedirection then - raise FetchError.new('too many redirects', uri) if depth > 10 - - open_uri_or_path(response['Location'], last_modified, head, depth + 1) - else - raise FetchError.new("bad response #{response.message} #{response.code}", uri) - end - end - - ## - # Performs a Net::HTTP request of type +request_class+ on +uri+ returning - # a Net::HTTP response object. request maintains a table of persistent - # connections to reduce connect overhead. - - def request(uri, request_class, last_modified = nil) - request = request_class.new uri.request_uri - - unless uri.nil? || uri.user.nil? || uri.user.empty? then - request.basic_auth uri.user, uri.password - end - - ua = "RubyGems/#{Gem::RubyGemsVersion} #{Gem::Platform.local}" - ua << " Ruby/#{RUBY_VERSION} (#{RUBY_RELEASE_DATE}" - ua << " patchlevel #{RUBY_PATCHLEVEL}" if defined? RUBY_PATCHLEVEL - ua << ")" - - request.add_field 'User-Agent', ua - request.add_field 'Connection', 'keep-alive' - request.add_field 'Keep-Alive', '30' - - if last_modified then - request.add_field 'If-Modified-Since', last_modified.rfc2822 - end - - connection = connection_for uri - - retried = false - bad_response = false - - # HACK work around EOFError bug in Net::HTTP - # NOTE Errno::ECONNABORTED raised a lot on Windows, and make impossible - # to install gems. - begin - @requests[connection.object_id] += 1 - response = connection.request request - say "#{request.method} #{response.code} #{response.message}: #{uri}" if - Gem.configuration.really_verbose - rescue Net::HTTPBadResponse - reset connection - - raise FetchError.new('too many bad responses', uri) if bad_response - - bad_response = true - retry - rescue EOFError, Errno::ECONNABORTED, Errno::ECONNRESET - requests = @requests[connection.object_id] - say "connection reset after #{requests} requests, retrying" if - Gem.configuration.really_verbose - - raise FetchError.new('too many connection resets', uri) if retried - - reset connection - - retried = true - retry - end - - response - end - - ## - # Resets HTTP connection +connection+. - - def reset(connection) - @requests.delete connection.object_id - - connection.finish - connection.start - end - - ## - # Checks if the provided string is a file:// URI. - - def file_uri?(uri) - uri =~ %r{\Afile://} - end - - ## - # Given a file:// URI, returns its local path. - - def get_file_uri_path(uri) - uri.sub(%r{\Afile://}, '') - end - -end - |