Add the ability to link to remote user profile

related to diaspora/jsxc#77

app/controllers/people_controller.rb

@@ -184,13 +184,21 @@ class PeopleController < ApplicationController
   private
 
   def find_person
-    @person = Person.find_from_guid_or_username({
+    username = params[:username]
+    @person = if diaspora_id?(username)
+        Person.where({
+          diaspora_handle: username.downcase
+        }).first
+      else
+        Person.find_from_guid_or_username({
           id: params[:id] || params[:person_id],
-      username: params[:username]
+          username: username
         })
+      end
 
     # view this profile on the home pod, if you don't want to sign in...
     authenticate_user! if remote_profile_with_no_user_session?
+    raise ActiveRecord::RecordNotFound if @person.nil?
     raise Diaspora::AccountClosed if @person.closed_account?
   end
 

config/routes.rb

@@ -175,8 +175,8 @@ Diaspora::Application.routes.draw do
       get :tag_index
     end
   end
-  get '/u/:username' => 'people#show', :as => 'user_profile'
-  get '/u/:username/profile_photo' => 'users#user_photo'
+  get '/u/:username' => 'people#show', :as => 'user_profile', :constraints => { :username => /[^\/]+/ }
+  get '/u/:username/profile_photo' => 'users#user_photo', :constraints => { :username => /[^\/]+/ }
 
 
   # Federation

spec/controllers/people_controller_spec.rb

@@ -179,6 +179,16 @@ describe PeopleController, :type => :controller do
       expect(assigns(:person)).to eq(@user.person)
     end
 
+    it "404s if no person is found via diaspora handle" do
+      get :show, :username => 'delicious@pod.net'
+      expect(response.code).to eq("404")
+    end
+
+    it 'finds a person via diaspora handle' do
+      get :show, username: @user.diaspora_handle
+      expect(assigns(:person)).to eq(@user.person)
+    end
+
     it 'redirects home for closed account' do
       @person = FactoryGirl.create(:person, :closed_account => true)
       get :show, :id => @person.to_param