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#
# Author:: Jesse Campbell (<hikeit@gmail.com>)
# Author:: Lamont Granquist (<lamont@opscode.com>)
# Copyright:: Copyright (c) 2013-2016 Chef Software, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
require 'uri'
require 'tempfile'
require 'chef/file_content_management/content_base'
require 'chef/mixin/uris'
class Chef
class Provider
class RemoteFile
class Content < Chef::FileContentManagement::ContentBase
private
include Chef::Mixin::Uris
def file_for_provider
Chef::Log.debug("#{@new_resource} checking for changes")
if current_resource_matches_target_checksum?
Chef::Log.debug("#{@new_resource} checksum matches target checksum (#{@new_resource.checksum}) - not updating")
else
sources = @new_resource.source
raw_file = try_multiple_sources(sources)
end
raw_file
end
# Given an array of source uris, iterate through them until one does not fail
def try_multiple_sources(sources)
sources = sources.dup
source = sources.shift
begin
uri = if Chef::Provider::RemoteFile::Fetcher.network_share?(source)
source
else
as_uri(source)
end
raw_file = grab_file_from_uri(uri)
rescue SocketError, Errno::ECONNREFUSED, Errno::ENOENT, Errno::EACCES, Timeout::Error, Net::HTTPServerException, Net::HTTPFatalError, Net::FTPError => e
Chef::Log.warn("#{@new_resource} cannot be downloaded from #{source}: #{e}")
if source = sources.shift
Chef::Log.info("#{@new_resource} trying to download from another mirror")
retry
else
raise e
end
end
raw_file
end
# Given a source uri, return a Tempfile, or a File that acts like a Tempfile (close! method)
def grab_file_from_uri(uri)
Chef::Provider::RemoteFile::Fetcher.for_resource(uri, @new_resource, @current_resource).fetch
end
def current_resource_matches_target_checksum?
@new_resource.checksum && @current_resource.checksum && @current_resource.checksum =~ /^#{Regexp.escape(@new_resource.checksum)}/
end
end
end
end
end
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