impress/app/services/neopass.rb
Emi Matchu 644b181ed0 Use Neopets username as base name for new NeoPass accounts, if possible
Yay, we got the API endpoint for this! The `linkage` scope is the key.

Rather than pulling back the specific fallback behavior we had wrote
for usernames before, which was slightly different and involved
appending `neopass` in there too (e.g. `matchu-neopass-1234`), I
figured let's just use a lot of the same logic, and just use the
preferred name as the base name. (I figure the `neopass` suffix isn't
that useful anyway, `matchu-1234` kinda looks better tbh! And it's all
fallback stuff that I expect serious users to replace, anyway.)
2024-04-09 07:48:13 -07:00

73 lines
2.2 KiB
Ruby

require "async/http/internet/instance"
# While most of our NeoPass logic is built into Devise -> OmniAuth -> OIDC
# OmniAuth plugin, NeoPass also offers some supplemental APIs that we use here.
module NeoPass
# Share a pool of persistent connections, rather than reconnecting on
# each request. (This library does that automatically!)
INTERNET = Async::HTTP::Internet.instance
def self.load_main_neopets_username(access_token)
linkages = load_linkages(access_token)
begin
# Get the Neopets.com linkages, sorted with your "main" account to the
# front. (In theory, if there are any Neopets.com linkages, then one
# should be main—but let's be resilient and be prepared for none of them
# to be marked as such!)
neopets_linkages = linkages.
select { |l| l.fetch("client_name") == "Neopets.com" }.
sort_by { |l| l.fetch("extra", {}).fetch("main") == true ? 0 : 1 }
# Read the username from that linkage, if any.
neopets_linkages.first.try { |l| l.fetch("user_identifier") }
rescue KeyError => error
raise UnexpectedResponseFormat,
"missing field #{error.key} in NeoPass linkage response"
end
end
private
LINKAGE_URL = "https://oidc.neopets.com/linkage/all"
def self.load_linkages(access_token)
response = Sync do
response = INTERNET.get(LINKAGE_URL, [
["User-Agent", Rails.configuration.user_agent_for_neopets],
["Authorization", "Bearer #{access_token}"],
])
end
if response.status != 200
raise ResponseNotOK.new(response.status),
"expected status 200 but got #{response.status} (#{LINKAGE_URL})"
end
linkages_str = response.body.read
begin
linkages = JSON.parse(linkages_str)
rescue JSON::ParserError
Rails.logger.debug "Unexpected NeoPass linkage response:\n#{linkages_str}"
raise UnexpectedResponseFormat,
"failed to parse NeoPass linkage response as JSON"
end
if !linkages.is_a? Array
Rails.logger.debug "Unexpected NeoPass linkage response:\n#{linkages_str}"
raise UnexpectedResponseFormat,
"NeoPass linkage response was not an array of linkages"
end
linkages
end
class ResponseNotOK < StandardError
attr_reader :status
def initialize(status)
super
@status = status
end
end
class UnexpectedResponseFormat < StandardError;end
end