Fix #498 (cannot login using mobile interface) by introducing a login page specialized for mobile devices. To support this, I added named routes for the login paths and pulled up the mobile content negotiation code to the ApplicationController.

git-svn-id: http://www.rousette.org.uk/svn/tracks-repos/trunk@531 a4c988fc-2ded-0310-b66e-134b36920a42

tracks/app/controllers/application.rb

@@ -14,11 +14,12 @@ class ApplicationController < ActionController::Base
   helper :application
   include LoginSystem
 
-  layout 'standard'
+  layout proc{ |controller| controller.mobile? ? "mobile" : "standard" }
   
   before_filter :set_session_expiration
   prepend_before_filter :login_required
-  
+  prepend_before_filter :enable_mobile_content_negotiation
+  after_filter :restore_content_type_for_mobile
   after_filter :set_charset
 
   include ActionView::Helpers::TextHelper
@@ -116,6 +117,37 @@ class ApplicationController < ActionController::Base
     Hash[*projects.reject{ |p| p.default_context.nil? }.map{ |p| [p.name, p.default_context.name] }.flatten].to_json 
   end
   
+  # Here's the concept behind this "mobile content negotiation" hack:
+  # In addition to the main, AJAXy Web UI, Tracks has a lightweight
+  # low-feature 'mobile' version designed to be suitablef or use
+  # from a phone or PDA. It makes some sense that tne pages of that
+  # mobile version are simply alternate representations of the same
+  # Todo resources. The implementation goal was to treat mobile
+  # as another format and be able to use respond_to to render both
+  # versions. Unfortunately, I ran into a lot of trouble simply
+  # registering a new mime type 'text/html' with format :m because
+  # :html already is linked to that mime type and the new
+  # registration was forcing all html requests to be rendered in
+  # the mobile view. The before_filter and after_filter hackery
+  # below accomplishs that implementation goal by using a 'fake'
+  # mime type during the processing and then setting it to 
+  # 'text/html' in an 'after_filter' -LKM 2007-04-01
+  def mobile?
+    return params[:format] == 'm' || response.content_type == MOBILE_CONTENT_TYPE
+  end
+
+  def enable_mobile_content_negotiation
+    if mobile?
+      request.accepts.unshift(Mime::Type::lookup(MOBILE_CONTENT_TYPE))
+    end
+  end
+
+  def restore_content_type_for_mobile
+    if mobile?
+      response.content_type = 'text/html'
+    end
+  end
+   
   protected
   
   def admin_login_required
@@ -126,7 +158,10 @@ class ApplicationController < ActionController::Base
   end
   
   def redirect_back_or_home
-    redirect_back_or_default home_url
+    respond_to do |format|
+      format.html { redirect_back_or_default home_url }
+      format.m { redirect_back_or_default mobile_url }
+    end
   end
   
   def boolean_param(param_name)

tracks/app/controllers/login_controller.rb

@@ -20,6 +20,7 @@ class LoginController < ApplicationController
           notify :notice, "Login successful: session #{msg}"
           cookies[:tracks_login] = { :value => @user.login, :expires => Time.now + 1.year }
           redirect_back_or_home
+          return
         else
           @login = params['user_login']
           notify :warning, "Login unsuccessful"
@@ -27,8 +28,13 @@ class LoginController < ApplicationController
       when :get
         if User.no_users_yet?
           redirect_to :controller => 'users', :action => 'new'
+          return
         end
     end
+    respond_to do |format|
+      format.html
+      format.m   { render :action => 'login_mobile.rhtml', :layout => 'mobile' }
+    end
   end
   
   def begin
@@ -44,10 +50,13 @@ class LoginController < ApplicationController
         # to the server using the redirect_url the library created for us.
 
         # redirect to the server
-        redirect_to open_id_response.redirect_url((request.protocol + request.host_with_port + "/"), url_for(:action => 'complete'))
+        respond_to do |format|
+          format.html { redirect_to open_id_response.redirect_url((request.protocol + request.host_with_port + "/"), open_id_complete_url) }
+          format.m { redirect_to open_id_response.redirect_url((request.protocol + request.host_with_port + "/"), formatted_open_id_complete_url(:format => 'm')) }
+        end
       else
         notify :warning, "Unable to find openid server for <q>#{openid_url}</q>"
-        redirect_to :action => 'login'
+        redirect_to_login
     end
   end
 
@@ -92,14 +101,14 @@ class LoginController < ApplicationController
       else
         notify :warning, "Unknown response status: #{open_id_response.status}"
     end
-    redirect_to :action => 'login' unless performed?
+    redirect_to_login unless performed?
   end
 
   def logout
     session['user_id'] = nil
     reset_session
     notify :notice, "You have been logged out of Tracks."
-    redirect_to :action => "login"
+    redirect_to_login
   end
   
   def check_expiry
@@ -122,6 +131,13 @@ class LoginController < ApplicationController
   
   private
       
+  def redirect_to_login
+    respond_to do |format|
+      format.html { redirect_to login_path }
+      format.m { redirect_to formatted_login_path(:format => 'm') }
+    end
+  end
+  
   def should_expire_sessions?
     session['noexpiry'] != "on"
   end

tracks/app/controllers/todos_controller.rb

@@ -7,13 +7,8 @@ class TodosController < ApplicationController
   append_before_filter :init, :except => [ :destroy, :completed, :completed_archive, :check_deferred ]
   append_before_filter :get_todo_from_params, :only => [ :edit, :toggle_check, :show, :update, :destroy ]
 
-  prepend_before_filter :enable_mobile_content_negotiation
-  after_filter :restore_content_type_for_mobile
-
   session :off, :only => :index, :if => Proc.new { |req| is_feed_request(req) }
 
-  layout proc{ |controller| controller.mobile? ? "mobile" : "standard" }
-
   def index
     @projects = @user.projects.find(:all, :include => [ :todos ])
     @contexts = @user.contexts.find(:all, :include => [ :todos ])
@@ -317,40 +312,8 @@ class TodosController < ApplicationController
 
   end
   
-  # Here's the concept behind this "mobile content negotiation" hack:
-  # In addition to the main, AJAXy Web UI, Tracks has a lightweight
-  # low-feature 'mobile' version designed to be suitablef or use
-  # from a phone or PDA. It makes some sense that tne pages of that
-  # mobile version are simply alternate representations of the same
-  # Todo resources. The implementation goal was to treat mobile
-  # as another format and be able to use respond_to to render both
-  # versions. Unfortunately, I ran into a lot of trouble simply
-  # registering a new mime type 'text/html' with format :m because
-  # :html already is linked to that mime type and the new
-  # registration was forcing all html requests to be rendered in
-  # the mobile view. The before_filter and after_filter hackery
-  # below accomplishs that implementation goal by using a 'fake'
-  # mime type during the processing and then setting it to 
-  # 'text/html' in an 'after_filter' -LKM 2007-04-01
-  def mobile?
-    return params[:format] == 'm' || response.content_type == MOBILE_CONTENT_TYPE
-  end
-
-  def enable_mobile_content_negotiation
-    if mobile?
-      request.accepts.unshift(Mime::Type::lookup(MOBILE_CONTENT_TYPE))
-    end
-  end
-
-  def restore_content_type_for_mobile
-    if mobile?
-      response.content_type = 'text/html'
-    end
-  end
-  
   private  
   
-  
     def get_todo_from_params
       @todo = @user.todos.find(params['id'])
     end

tracks/app/views/layouts/standard.rhtml

@@ -35,7 +35,7 @@
 		  page.select('.notes').each { |e| e.toggle }
 		end
 	-%> | 
-    <%= link_to "Logout (#{@user.display_name}) »", :controller => "login", :action=>"logout"%>
+    <%= link_to "Logout (#{@user.display_name}) »", logout_path %>
 </div>
 
 <div id="navcontainer">

tracks/app/views/todos/index_mobile.rhtml

@@ -3,4 +3,4 @@
 <hr />
 <%= render :partial => 'mobile_actions' %>
 <hr />
-<%= link_to "Logout", :controller => 'login', :action => 'logout' %>
+<%= link_to "Logout", formatted_logout_path(:format => 'm') %>

tracks/config/routes.rb

@@ -2,8 +2,16 @@ ActionController::Routing::Routes.draw do |map|
   UJS::routes
   
   # Login Routes
-  map.connect 'login', :controller => 'login', :action => 'login' 
-  map.connect 'logout', :controller => 'login', :action => 'logout'
+  map.with_options :controller => 'login' do |login|
+    login.login 'login', :action => 'login'
+    login.formatted_login 'login.:format', :action => 'login'
+    login.logout 'logout', :action => 'logout'
+    login.formatted_logout 'logout.:format', :action => 'logout'
+    login.open_id_begin 'begin', :action => 'begin'
+    login.formatted_open_id_begin 'begin.:format', :action => 'begin'
+    login.open_id_complete 'complete', :action => 'complete'
+    login.formatted_open_id_complete 'complete.:format', :action => 'complete'
+  end
   
   map.resources :users,
                 :member => {:change_password => :get, :update_password => :post,

tracks/lib/login_system.rb

@@ -113,8 +113,8 @@ module LoginSystem
   # a popup window might just close itself for instance
   def access_denied
     respond_to do |format|
-      format.html { redirect_to :controller=>"login", :action =>"login" }
-      format.m { redirect_to :controller=>"login", :action =>"login" }
+      format.html { redirect_to login_path }
+      format.m { redirect_to formatted_login_path(:format => 'm') }
       format.js { render :partial => 'login/redirect_to_login' }
       format.xml { basic_auth_denied }
       format.rss { basic_auth_denied }