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# frozen_string_literal: true
require 'rubygems/command'
require 'rubygems/local_remote_options'
require 'rubygems/gemcutter_utilities'
require 'rubygems/package'

class Gem::Commands::PushCommand < Gem::Command
  include Gem::LocalRemoteOptions
  include Gem::GemcutterUtilities

def description # :nodoc:
    <<-EOF
The push command uploads a gem to the push server (the default is
https://rubygems.org) and adds it to the index.

The gem can be removed from the index and deleted from the server using the yank
command.  For further discussion see the help for the yank command.
    EOF
  end

def arguments # :nodoc:
    "GEM       built gem to push up"
  end

def usage # :nodoc:
    "#{program_name} GEM"
  end

def initialize
    super 'push', 'Push a gem up to the gem server', :host => self.host

@user_defined_host = false

add_proxy_option
    add_key_option
    add_otp_option

add_option('--host HOST',
               'Push to another gemcutter-compatible host',
               '  (e.g. https://rubygems.org)') do |value, options|
      options[:host] = value
      @user_defined_host = true
    end

@host = nil
  end

def execute
    gem_name = get_one_gem_name
    default_gem_server, push_host = get_hosts_for(gem_name)

default_host = nil
    user_defined_host = nil

if @user_defined_host
      user_defined_host = options[:host]
    else
      default_host = options[:host]
    end

@host = if user_defined_host
              user_defined_host
            elsif default_gem_server
              default_gem_server
            elsif push_host
              push_host
            else
              default_host
            end

sign_in @host

send_gem(gem_name)
  end

def send_gem(name)
    args = [:post, "api/v1/gems"]

latest_rubygems_version = Gem.latest_rubygems_version

if latest_rubygems_version < Gem.rubygems_version and
         Gem.rubygems_version.prerelease? and
         Gem::Version.new('2.0.0.rc.2') != Gem.rubygems_version
      alert_error <<-ERROR
You are using a beta release of RubyGems (#{Gem::VERSION}) which is not
allowed to push gems.  Please downgrade or upgrade to a release version.

The latest released RubyGems version is #{latest_rubygems_version}

You can upgrade or downgrade to the latest release version with:

gem update --system=#{latest_rubygems_version}

ERROR
      terminate_interaction 1
    end

gem_data = Gem::Package.new(name)

unless @host
      @host = gem_data.spec.metadata['default_gem_server']
    end

push_host = nil

if gem_data.spec.metadata.has_key?('allowed_push_host')
      push_host = gem_data.spec.metadata['allowed_push_host']
    end

@host ||= push_host

# Always include @host, even if it's nil
    args += [ @host, push_host ]

say "Pushing gem to #{@host || Gem.host}..."

response = send_push_request(name, args)

if need_otp? response
      response = send_push_request(name, args, true)
    end

with_response response
  end

private

def send_push_request(name, args, use_otp = false)
    rubygems_api_request(*args) do |request|
      request.body = Gem.read_binary name
      request.add_field "Content-Length", request.body.size
      request.add_field "Content-Type",   "application/octet-stream"
      request.add_field "Authorization",  api_key
      request.add_field "OTP", options[:otp] if use_otp
    end
  end

def get_hosts_for(name)
    gem_metadata = Gem::Package.new(name).spec.metadata

[
      gem_metadata["default_gem_server"],
      gem_metadata["allowed_push_host"]
    ]
  end
end