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require 'uri'
require 'bundler/vendored_persistent'
module Bundler
# Handles all the fetching with the rubygems server
class Fetcher
REDIRECT_LIMIT = 5
attr_reader :has_api
class << self
attr_accessor :disable_endpoint
@@spec_fetch_map ||= {}
def fetch(spec)
spec, uri = @@spec_fetch_map[spec.full_name]
if spec
path = download_gem_from_uri(spec, uri)
s = Bundler.rubygems.spec_from_gem(path)
spec.__swap__(s)
end
end
def download_gem_from_uri(spec, uri)
spec.fetch_platform
download_path = Bundler.requires_sudo? ? Bundler.tmp : Bundler.rubygems.gem_dir
gem_path = "#{Bundler.rubygems.gem_dir}/cache/#{spec.full_name}.gem"
FileUtils.mkdir_p("#{download_path}/cache")
Bundler.rubygems.download_gem(spec, uri, download_path)
if Bundler.requires_sudo?
Bundler.mkdir_p "#{Bundler.rubygems.gem_dir}/cache"
Bundler.sudo "mv #{Bundler.tmp}/cache/#{spec.full_name}.gem #{gem_path}"
end
gem_path
end
end
def initialize(remote_uri)
@remote_uri = remote_uri
@has_api = true # will be set to false if the rubygems index is ever fetched
@@connection ||= Net::HTTP::Persistent.new nil, :ENV
end
# fetch a gem specification
def fetch_spec(spec)
spec = spec - [nil, 'ruby', '']
spec_file_name = "#{spec.join '-'}.gemspec.rz"
uri = URI.parse("#{@remote_uri}#{Gem::MARSHAL_SPEC_DIR}#{spec_file_name}")
spec_rz = (uri.scheme == "file") ? Gem.read_binary(uri.path) : fetch(uri)
Marshal.load Gem.inflate(spec_rz)
end
# return the specs in the bundler format as an index
def specs(gem_names, source)
index = Index.new
if !gem_names || @remote_uri.scheme == "file" || Bundler::Fetcher.disable_endpoint
Bundler.ui.info "Fetching source index from #{strip_user_pass_from_uri(@remote_uri)}"
specs = fetch_all_remote_specs
else
Bundler.ui.info "Fetching gem metadata from #{strip_user_pass_from_uri(@remote_uri)}", Bundler.ui.debug?
begin
specs = fetch_remote_specs(gem_names)
# fall back to the legacy index in the following cases
# 1. Gemcutter Endpoint doesn't return a 200
# 2. Marshal blob doesn't load properly
# 3. One of the YAML gemspecs has the Syck::DefaultKey problem
rescue HTTPError, TypeError => e
# new line now that the dots are over
Bundler.ui.info "" unless Bundler.ui.debug?
if @remote_uri.to_s.include?("rubygems.org")
Bundler.ui.info "Error #{e.class} during request to dependency API"
end
Bundler.ui.debug e.message
Bundler.ui.debug e.backtrace
Bundler.ui.info "Fetching full source index from #{strip_user_pass_from_uri(@remote_uri)}"
specs = fetch_all_remote_specs
else
# new line now that the dots are over
Bundler.ui.info "" unless Bundler.ui.debug?
end
end
specs[@remote_uri].each do |name, version, platform, dependencies|
next if name == 'bundler'
spec = nil
if dependencies
spec = EndpointSpecification.new(name, version, platform, dependencies)
else
spec = RemoteSpecification.new(name, version, platform, self)
end
spec.source = source
@@spec_fetch_map[spec.full_name] = [spec, @remote_uri]
index << spec
end
index
rescue LoadError => e
if e.message.include?("cannot load such file -- openssl")
raise InstallError,
"\nCould not load OpenSSL." \
"\nYou must recompile Ruby with OpenSSL support or change the sources in your" \
"\nGemfile from 'https' to 'http'. Instructions for compiling with OpenSSL" \
"\nusing RVM are available at rvm.io/packages/openssl."
else
raise e
end
end
# fetch index
def fetch_remote_specs(gem_names, full_dependency_list = [], last_spec_list = [])
query_list = gem_names - full_dependency_list
# only display the message on the first run
if Bundler.ui.debug?
Bundler.ui.debug "Query List: #{query_list.inspect}"
else
Bundler.ui.info ".", false
end
return {@remote_uri => last_spec_list} if query_list.empty?
spec_list, deps_list = fetch_dependency_remote_specs(query_list)
returned_gems = spec_list.map {|spec| spec.first }.uniq
fetch_remote_specs(deps_list, full_dependency_list + returned_gems, spec_list + last_spec_list)
end
private
def fetch(uri, counter = 0)
raise HTTPError, "Too many redirects" if counter >= REDIRECT_LIMIT
begin
Bundler.ui.debug "Fetching from: #{uri}"
response = @@connection.request(uri)
rescue Timeout::Error, Errno::EINVAL, Errno::ECONNRESET, EOFError,
SocketError, Net::HTTPBadResponse, Net::HTTPHeaderSyntaxError,
Net::HTTP::Persistent::Error, Net::ProtocolError => e
raise HTTPError, "Network error while fetching #{uri}"
end
case response
when Net::HTTPRedirection
Bundler.ui.debug("HTTP Redirection")
new_uri = URI.parse(response["location"])
new_uri.user = uri.user
new_uri.password = uri.password
fetch(new_uri, counter + 1)
when Net::HTTPSuccess
Bundler.ui.debug("HTTP Success")
response.body
else
Bundler.ui.debug("HTTP Error")
raise HTTPError
end
end
# fetch from Gemcutter Dependency Endpoint API
def fetch_dependency_remote_specs(gem_names)
Bundler.ui.debug "Query Gemcutter Dependency Endpoint API: #{gem_names.join(' ')}"
encoded_gem_names = URI.encode(gem_names.join(","))
uri = URI.parse("#{@remote_uri}api/v1/dependencies?gems=#{encoded_gem_names}")
marshalled_deps = fetch(uri)
gem_list = Marshal.load(marshalled_deps)
deps_list = []
spec_list = gem_list.map do |s|
dependencies = s[:dependencies].map do |d|
begin
name, requirement = d
dep = Gem::Dependency.new(name, requirement.split(", "))
rescue ArgumentError => e
if e.message.include?('Illformed requirement ["#<YAML::Syck::DefaultKey')
puts # we shouldn't print the error message on the "fetching info" status line
raise GemspecError, %{Unfortunately, the gem #{s[:name]} (#{s[:number]}) } +
%{has an invalid gemspec. As a result, Bundler cannot install this Gemfile. } +
%{Please ask the gem author to yank the bad version to fix this issue. For } +
%{more information, see http://bit.ly/syck-defaultkey.}
else
raise e
end
end
deps_list << dep.name
dep
end
[s[:name], Gem::Version.new(s[:number]), s[:platform], dependencies]
end
[spec_list, deps_list.uniq]
end
# fetch from modern index: specs.4.8.gz
def fetch_all_remote_specs
@has_api = false
Gem.sources = ["#{@remote_uri}"]
spec_list = Hash.new { |h,k| h[k] = [] }
begin
# Fetch all specs, minus prerelease specs
spec_list = Gem::SpecFetcher.new.list(true, false)
# Then fetch the prerelease specs
begin
Gem::SpecFetcher.new.list(false, true).each {|k, v| spec_list[k] += v }
rescue Gem::RemoteFetcher::FetchError
Bundler.ui.debug "Could not fetch prerelease specs from #{strip_user_pass_from_uri(@remote_uri)}"
end
rescue Gem::RemoteFetcher::FetchError
raise HTTPError, "Could not reach #{strip_user_pass_from_uri(@remote_uri)}"
end
return spec_list
end
def strip_user_pass_from_uri(uri)
uri_dup = uri.dup
uri_dup.user = "****" if uri_dup.user
uri_dup.password = "****" if uri_dup.password
uri_dup
end
end
end
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