User agent for WebFinger (#7531)

* User agent for WebFinger

* local_domain → web_domain

* 'http' is away accidentally...

app/lib/request.rb

@@ -58,7 +58,7 @@ class Request
 
   def set_common_headers!
     @headers[REQUEST_TARGET]    = "#{@verb} #{@url.path}"
-    @headers['User-Agent']      = user_agent
+    @headers['User-Agent']      = Mastodon::Version.user_agent
     @headers['Host']            = @url.host
     @headers['Date']            = Time.now.utc.httpdate
     @headers['Accept-Encoding'] = 'gzip' if @verb != :head
@@ -83,10 +83,6 @@ class Request
     @headers.keys.join(' ').downcase
   end
 
-  def user_agent
-    @user_agent ||= "#{HTTP::Request::USER_AGENT} (Mastodon/#{Mastodon::Version}; +#{root_url})"
-  end
-
   def key_id
     case @key_id_format
     when :acct

config/initializers/http_client_proxy.rb

@@ -18,7 +18,8 @@ module Goldfinger
   def self.finger(uri, opts = {})
     to_hidden = /\.(onion|i2p)(:\d+)?$/.match(uri)
     raise Mastodon::HostValidationError, 'Instance does not support hidden service connections' if !Rails.configuration.x.access_to_hidden_service && to_hidden
-    opts = opts.merge(Rails.configuration.x.http_client_proxy).merge(ssl: !to_hidden)
+    opts = { ssl: !to_hidden, headers: {} }.merge(Rails.configuration.x.http_client_proxy).merge(opts)
+    opts[:headers]['User-Agent'] ||= Mastodon::Version.user_agent
     Goldfinger::Client.new(uri, opts).finger
   end
 end

lib/mastodon/version.rb

@@ -48,5 +48,9 @@ module Mastodon
         source_base_url
       end
     end
+
+    def user_agent
+      @user_agent ||= "#{HTTP::Request::USER_AGENT} (Mastodon/#{Version}; +http#{Rails.configuration.x.use_https ? 's' : ''}://#{Rails.configuration.x.web_domain}/)"
+    end
   end
 end