Replace APP_CONFIG[:terse_pod_url] with uri object.

Adds a new APP_CONFIG[:pod_uri] item, an uri object parsed from
pod_url. Replace all occurrences of APP_CONFIG[:terse_pod_url] with
APP_CONFIG[:pod_uri].host. Closes http://bugs.joindiaspora.com/issues/684,
using the well-defined semantics of the uri object.

The pod_url is normalized using module URI's functions, always with a
trailing /.

The diaspora-handle will always reflect the pod_url with this patch
i. e., a pod_url like www.dpod.se will give the handle xx@www.dpod.se;
previous code stripped the www. prefix. If this is a problem, it
should be addressed by another setting, since one cannot presume that
www.domain.tld resolves to the same address as domain.tld.

app/mailers/notifier.rb

@@ -18,7 +18,7 @@ class Notifier < ActionMailer::Base
     @string = string.html_safe
     attachments.inline['diaspora_white_on_grey.png'] = ATTACHMENT
     mail(:to => @recipient.email,
-         :subject => I18n.t('notifier.single_admin.subject'), :host => APP_CONFIG[:terse_pod_url])
+         :subject => I18n.t('notifier.single_admin.subject'), :host => APP_CONFIG[:pod_uri].host)
   end
 
   def new_request(recipient_id, sender_id)
@@ -30,7 +30,7 @@ class Notifier < ActionMailer::Base
     attachments.inline['diaspora_white_on_grey.png'] = ATTACHMENT
 
     mail(:to => "\"#{@receiver.name}\" <#{@receiver.email}>",
-         :subject => I18n.t('notifier.new_request.subject', :from => @sender.name), :host => APP_CONFIG[:terse_pod_url])
+         :subject => I18n.t('notifier.new_request.subject', :from => @sender.name), :host => APP_CONFIG[:pod_uri].host)
   end
 
   def request_accepted(recipient_id, sender_id, aspect_id)
@@ -43,7 +43,7 @@ class Notifier < ActionMailer::Base
     attachments.inline['diaspora_white_on_grey.png'] = ATTACHMENT
 
     mail(:to => "\"#{@receiver.name}\" <#{@receiver.email}>",
-          :subject => I18n.t('notifier.request_accepted.subject', :name => @sender.name), :host => APP_CONFIG[:terse_pod_url])
+          :subject => I18n.t('notifier.request_accepted.subject', :name => @sender.name), :host => APP_CONFIG[:pod_uri].host)
   end
 
   private

app/models/user.rb

@@ -357,7 +357,7 @@ class User
     opts[:person][:profile] ||= Profile.new
 
     self.person = Person.new(opts[:person])
-    self.person.diaspora_handle = "#{opts[:username]}@#{APP_CONFIG[:terse_pod_url]}"
+    self.person.diaspora_handle = "#{opts[:username]}@#{APP_CONFIG[:pod_uri].host}"
     self.person.url = APP_CONFIG[:pod_url]
 
 

app/views/devise/sessions/new.haml

@@ -12,7 +12,7 @@
           = f.label :username , t('username')
           = f.text_field :username
         %p.user_network
-          ="@#{APP_CONFIG[:terse_pod_url]}"
+          ="@#{APP_CONFIG[:pod_uri].host}/"
 
         %p
           = f.label :password , t('password')

app/views/devise/sessions/new.mobile.haml

@@ -11,7 +11,7 @@
         = f.label :username , t('username')
         = f.text_field :username
       %p.user_network
-        ="@#{APP_CONFIG[:terse_pod_url]}"
+        ="@#{APP_CONFIG[:pod_uri].host}/"
 
       %p
         = f.label :password , t('password')

app/views/publics/host_meta.erb

@@ -1,9 +1,9 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <XRD xmlns='http://docs.oasis-open.org/ns/xri/xrd-1.0'
      xmlns:hm='http://host-meta.net/xrd/1.0'>
-     <hm:Host><%= APP_CONFIG[:terse_pod_url] %></hm:Host>
+     <hm:Host><%= APP_CONFIG[:pod_uri].host %></hm:Host>
   <Link rel='lrdd'
-        template='<%= APP_CONFIG[:pod_url] %>webfinger?q={uri}'>
+        template='<%= APP_CONFIG[:pod_uri].host %>/webfinger?q={uri}'>
     <Title>Resource Descriptor</Title>
   </Link>
 </XRD>

config/initializers/_load_app_config.rb

@@ -1,6 +1,15 @@
 #   Copyright (c) 2010, Diaspora Inc.  This file is
 #   licensed under the Affero General Public License version 3 or later.  See
 #   the COPYRIGHT file.
+#
+#   Sets up APP_CONFIG. Unless stated below, each entry is a the string in
+#   the file app_config.yml, as applicable for current environment.
+#
+#   Specific items
+#     * pod_url: As in app_config.yml, normalized with a trailing /.
+#     * pod_uri: An uri object derived from pod_url.
+
+require 'uri'
 
 def load_config_yaml filename
   YAML.load(File.read(filename))
@@ -20,10 +29,14 @@ else
   APP_CONFIG = all_envs['default'].symbolize_keys
 end
 
-APP_CONFIG[:terse_pod_url] = APP_CONFIG[:pod_url].gsub(/(https?:|www\.)\/\//, '')
-APP_CONFIG[:terse_pod_url].chop! if APP_CONFIG[:terse_pod_url][-1, 1] == '/'
+begin
+    APP_CONFIG[:pod_uri] = URI.parse( APP_CONFIG[:pod_url])
+rescue
+    puts "WARNING: pod url " + APP_CONFIG[:pod_url] + " is not a legal URI"
+end
 
-APP_CONFIG[:pod_url].chop! if APP_CONFIG[:pod_url][-1, 1] == '/'
-APP_CONFIG[:pod_url] = APP_CONFIG[:pod_url] + '/'
+APP_CONFIG[:pod_url] = APP_CONFIG[:pod_uri].normalize.to_s
 
-puts "WARNING: Please modify your app_config.yml to have a proper pod_url!" if APP_CONFIG[:terse_pod_url] == "example.org" && Rails.env != "test"
+if APP_CONFIG[:pod_uri].host == "example.org" && Rails.env != "test"
+    puts "WARNING: Please modify your app_config.yml to have a proper pod_url!"
+end

config/initializers/mailer_config.rb

@@ -3,7 +3,7 @@
 #   the COPYRIGHT file.
 
 Diaspora::Application.configure do
-  config.action_mailer.default_url_options = {:host => APP_CONFIG[:terse_pod_url]}
+  config.action_mailer.default_url_options = {:host => APP_CONFIG[:pod_uri].host}
   unless Rails.env == 'test' || APP_CONFIG[:mailer_on] != true
     config.action_mailer.delivery_method = :smtp
     if APP_CONFIG[:smtp_authentication] == "none"

spec/config/config_spec.rb

@@ -12,6 +12,6 @@ describe 'making sure the config is parsed as should' do
   
   describe 'terse_pod_url'
     it 'should be correctly parsed' do
-      APP_CONFIG[:terse_pod_url].should == 'example.org'
+      APP_CONFIG[:pod_uri].host.should == 'example.org'
     end
 end

spec/models/person_spec.rb

@@ -38,13 +38,13 @@ describe Person do
     context 'local people' do
       it 'uses the pod config url to set the diaspora_handle' do
         new_user = Factory.create(:user)
-        new_user.person.diaspora_handle.should == new_user.username + "@" + APP_CONFIG[:terse_pod_url]
+        new_user.person.diaspora_handle.should == new_user.username + "@" + APP_CONFIG[:pod_uri].host
       end
     end
 
     context 'remote people' do
       it 'stores the diaspora_handle in the database' do
-        @person.diaspora_handle.include?(APP_CONFIG[:terse_pod_url]).should be false
+        @person.diaspora_handle.include?(APP_CONFIG[:pod_uri].host).should be false
       end
     end