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# frozen_string_literal: true
module Aws
module Plugins
# @api private
class RegionalEndpoint < Seahorse::Client::Plugin
option(:profile)
option(:region,
required: true,
doc_type: String,
docstring: <<-DOCS) do |cfg|
The AWS region to connect to. The configured `:region` is
used to determine the service `:endpoint`. When not passed,
a default `:region` is searched for in the following locations:
* `Aws.config[:region]`
* `ENV['AWS_REGION']`
* `ENV['AMAZON_REGION']`
* `ENV['AWS_DEFAULT_REGION']`
* `~/.aws/credentials`
* `~/.aws/config`
DOCS
resolve_region(cfg)
end
option(:regional_endpoint, false)
option(:endpoint, doc_type: String, docstring: <<-DOCS) do |cfg|
The client endpoint is normally constructed from the `:region`
option. You should only configure an `:endpoint` when connecting
to test or custom endpoints. This should be a valid HTTP(S) URI.
DOCS
endpoint_prefix = cfg.api.metadata['endpointPrefix']
if cfg.region && endpoint_prefix
if cfg.respond_to?(:sts_regional_endpoints)
sts_regional = cfg.sts_regional_endpoints
end
# check region is a valid RFC host label
unless cfg.region =~ /^(?![0-9]+$)(?!-)[a-zA-Z0-9-]{,63}(?<!-)$/
raise Errors::InvalidRegionError
end
Aws::Partitions::EndpointProvider.resolve(
cfg.region,
endpoint_prefix,
sts_regional
)
end
end
def after_initialize(client)
if client.config.region.nil? || client.config.region == ''
raise Errors::MissingRegionError
end
end
class << self
private
def resolve_region(cfg)
keys = %w[AWS_REGION AMAZON_REGION AWS_DEFAULT_REGION]
env_region = ENV.values_at(*keys).compact.first
env_region = nil if env_region == ''
cfg_region = Aws.shared_config.region(profile: cfg.profile)
env_region || cfg_region
end
end
end
end
end
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