Add bin and edit workflow

bin/gems/bundler-2.5.9/lib/bundler/fetcher/downloader.rb

@@ -0,0 +1,91 @@
+# frozen_string_literal: true
+
+module Bundler
+  class Fetcher
+    class Downloader
+      attr_reader :connection
+      attr_reader :redirect_limit
+
+      def initialize(connection, redirect_limit)
+        @connection = connection
+        @redirect_limit = redirect_limit
+      end
+
+      def fetch(uri, headers = {}, counter = 0)
+        raise HTTPError, "Too many redirects" if counter >= redirect_limit
+
+        filtered_uri = URICredentialsFilter.credential_filtered_uri(uri)
+
+        response = request(uri, headers)
+        Bundler.ui.debug("HTTP #{response.code} #{response.message} #{filtered_uri}")
+
+        case response
+        when Gem::Net::HTTPSuccess, Gem::Net::HTTPNotModified
+          response
+        when Gem::Net::HTTPRedirection
+          new_uri = Gem::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 Gem::Net::HTTPRequestedRangeNotSatisfiable
+          new_headers = headers.dup
+          new_headers.delete("Range")
+          new_headers["Accept-Encoding"] = "gzip"
+          fetch(uri, new_headers)
+        when Gem::Net::HTTPRequestEntityTooLarge
+          raise FallbackError, response.body
+        when Gem::Net::HTTPTooManyRequests
+          raise TooManyRequestsError, response.body
+        when Gem::Net::HTTPUnauthorized
+          raise BadAuthenticationError, uri.host if uri.userinfo
+          raise AuthenticationRequiredError, uri.host
+        when Gem::Net::HTTPForbidden
+          raise AuthenticationForbiddenError, uri.host
+        when Gem::Net::HTTPNotFound
+          raise FallbackError, "Gem::Net::HTTPNotFound: #{filtered_uri}"
+        else
+          message = "Gem::#{response.class.name.gsub(/\AGem::/, "")}"
+          message += ": #{response.body}" unless response.body.empty?
+          raise HTTPError, message
+        end
+      end
+
+      def request(uri, headers)
+        validate_uri_scheme!(uri)
+
+        filtered_uri = URICredentialsFilter.credential_filtered_uri(uri)
+
+        Bundler.ui.debug "HTTP GET #{filtered_uri}"
+        req = Gem::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 OpenSSL::SSL::SSLError
+        raise CertificateFailureError.new(uri)
+      rescue *HTTP_ERRORS => e
+        Bundler.ui.trace e
+        if e.is_a?(SocketError) || e.message.to_s.include?("host down:")
+          raise NetworkDownError, "Could not reach host #{uri.host}. Check your network " \
+            "connection and try again."
+        else
+          raise HTTPError, "Network error while fetching #{filtered_uri}" \
+            " (#{e})"
+        end
+      end
+
+      private
+
+      def validate_uri_scheme!(uri)
+        return if /\Ahttps?\z/.match?(uri.scheme)
+        raise InvalidOption,
+          "The request uri `#{uri}` has an invalid scheme (`#{uri.scheme}`). " \
+          "Did you mean `http` or `https`?"
+      end
+    end
+  end
+end