Gab Social. All are welcome.

app/lib/proof_provider/keybase/badge.rb

@@ -0,0 +1,45 @@
+# frozen_string_literal: true
+
+class ProofProvider::Keybase::Badge
+  include RoutingHelper
+
+  def initialize(local_username, provider_username, token, domain)
+    @local_username    = local_username
+    @provider_username = provider_username
+    @token             = token
+    @domain            = domain
+  end
+
+  def proof_url
+    "#{ProofProvider::Keybase::BASE_URL}/#{@provider_username}/sigchain\##{@token}"
+  end
+
+  def profile_url
+    "#{ProofProvider::Keybase::BASE_URL}/#{@provider_username}"
+  end
+
+  def icon_url
+    "#{ProofProvider::Keybase::BASE_URL}/#{@provider_username}/proof_badge/#{@token}?username=#{@local_username}&domain=#{@domain}"
+  end
+
+  def avatar_url
+    Rails.cache.fetch("proof_providers/keybase/#{@provider_username}/avatar_url", expires_in: 5.minutes) { remote_avatar_url } || default_avatar_url
+  end
+
+  private
+
+  def remote_avatar_url
+    request = Request.new(:get, "#{ProofProvider::Keybase::BASE_URL}/_/api/1.0/user/pic_url.json", params: { username: @provider_username })
+
+    request.perform do |res|
+      json = Oj.load(res.body_with_limit, mode: :strict)
+      json['pic_url'] if json.is_a?(Hash)
+    end
+  rescue Oj::ParseError, HTTP::Error, OpenSSL::SSL::SSLError
+    nil
+  end
+
+  def default_avatar_url
+    asset_pack_path('media/images/proof_providers/keybase.png')
+  end
+end