X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/226c41be692452129227f30d67f2d847e510015c..2fa81de6a95e7f82ac67cda2b6b6cecbfabf694a:/app/controllers/application_controller.rb

diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 5018dcc42..d541eba22 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -1,19 +1,24 @@
 class ApplicationController < ActionController::Base
+  include SessionPersistence
 
   protect_from_forgery
 
-  if STATUS == :database_readonly or STATUS == :database_offline
-    session :off
+  before_filter :fetch_body
 
+  if STATUS == :database_readonly or STATUS == :database_offline
     def self.cache_sweeper(*sweepers)
     end
   end
 
   def authorize_web
     if session[:user]
-      @user = User.where(:status => ["active", "confirmed", "suspended"]).find(session[:user])
+      @user = User.where(:id => session[:user]).where("status IN ('active', 'confirmed', 'suspended')").first
 
-      if @user.status == "suspended"
+      if @user.display_name != cookies["_osm_username"]
+        logger.info "Session user '#{@user.display_name}' does not match cookie user '#{cookies['_osm_username']}'"
+        reset_session
+        @user = nil
+      elsif @user.status == "suspended"
         session.delete(:user)
         session_expires_automatically
 
@@ -30,16 +35,28 @@ class ApplicationController < ActionController::Base
         end
       end
     elsif session[:token]
-      @user = User.authenticate(:token => session[:token])
-      session[:user] = @user.id
+      if @user = User.authenticate(:token => session[:token])
+        session[:user] = @user.id
+      end
     end
   rescue Exception => ex
     logger.info("Exception authorizing user: #{ex.to_s}")
+    reset_session
     @user = nil
   end
 
   def require_user
-    redirect_to :controller => 'user', :action => 'login', :referer => request.fullpath unless @user
+    unless @user
+      if request.get?
+        redirect_to :controller => 'user', :action => 'login', :referer => request.fullpath
+      else
+        render :nothing => true, :status => :forbidden
+      end
+    end
+  end
+
+  def require_oauth
+    @oauth = @user.access_token(OAUTH_KEY) if @user and defined? OAUTH_KEY
   end
 
   ##
@@ -99,6 +116,23 @@ class ApplicationController < ActionController::Base
   def require_allow_write_gpx
     require_capability(:allow_write_gpx)
   end
+  def require_allow_write_notes
+    require_capability(:allow_write_notes)
+  end
+
+  ##
+  # require that the user is a moderator, or fill out a helpful error message
+  # and return them to the index for the controller this is wrapped from.
+  def require_moderator
+    unless @user.moderator?
+      if request.get?
+        flash[:error] = t('application.require_moderator.not_a_moderator')
+        redirect_to :action => 'index'
+      else
+        render :nothing => true, :status => :forbidden
+      end
+    end
+  end
 
   ##
   # sets up the @user object for use by other methods. this is mostly called
@@ -106,9 +140,7 @@ class ApplicationController < ActionController::Base
   # is optional.
   def setup_user_auth
     # try and setup using OAuth
-    if oauthenticate
-      @user = current_token.user
-    else
+    if not Authenticator.new(self, [:token]).allow?
       username, passwd = get_auth_data # parse from headers
       # authenticate per-scheme
       if username.nil?
@@ -123,7 +155,7 @@ class ApplicationController < ActionController::Base
     # have we identified the user?
     if @user
       # check if the user has been banned
-      if not  @user.active_blocks.empty?
+      if @user.blocks.active.exists?
         # NOTE: need slightly more helpful message than this.
         report_error t('application.setup_user_auth.blocked'), :forbidden
       end
@@ -151,6 +183,22 @@ class ApplicationController < ActionController::Base
     end 
   end 
 
+  ##
+  # to be used as a before_filter *after* authorize. this checks that
+  # the user is a moderator and, if not, returns a forbidden error.
+  #
+  # NOTE: this isn't a very good way of doing it - it duplicates logic
+  # from require_moderator - but what we really need to do is a fairly
+  # drastic refactoring based on :format and respond_to? but not a 
+  # good idea to do that in this branch.
+  def authorize_moderator(errormessage="Access restricted to moderators") 
+    # check user is a moderator
+    unless @user.moderator?
+      render :text => errormessage, :status => :forbidden
+      return false
+    end 
+  end 
+
   def check_database_readable(need_api = false)
     if STATUS == :database_offline or (need_api and STATUS == :api_offline)
       redirect_to :controller => 'site', :action => 'offline'
@@ -165,20 +213,49 @@ class ApplicationController < ActionController::Base
   end
 
   def check_api_readable
-    if STATUS == :database_offline or STATUS == :api_offline
+    if api_status == :offline
       report_error "Database offline for maintenance", :service_unavailable
       return false
     end
   end
 
   def check_api_writable
-    if STATUS == :database_offline or STATUS == :database_readonly or
-       STATUS == :api_offline or STATUS == :api_readonly
+    unless api_status == :online
       report_error "Database offline for maintenance", :service_unavailable
       return false
     end
   end
 
+  def database_status
+    if STATUS == :database_offline
+      :offline
+    elsif STATUS == :database_readonly
+      :readonly
+    else 
+      :online
+    end
+  end
+
+  def api_status
+    status = database_status
+    if status == :online
+      if STATUS == :api_offline
+        status = :offline
+      elsif STATUS == :api_readonly
+        status = :readonly
+      end
+    end
+    return status
+  end
+
+  def gpx_status
+    status = database_status
+    if status == :online
+      status = :offline if STATUS == :gpx_offline
+    end
+    return status
+  end
+
   def require_public_data
     unless @user.data_public?
       report_error "You must make your edits public to upload new data", :forbidden
@@ -199,12 +276,12 @@ class ApplicationController < ActionController::Base
        request.headers['X-Error-Format'].downcase == "xml"
       result = OSM::API.new.get_xml_doc
       result.root.name = "osmError"
-      result.root << (XML::Node.new("status") << interpret_status(status))
+      result.root << (XML::Node.new("status") << "#{Rack::Utils.status_code(status)} #{Rack::Utils::HTTP_STATUS_CODES[status]}")
       result.root << (XML::Node.new("message") << message)
 
       render :text => result.to_s, :content_type => "text/xml"
     else
-      render :text => message, :status => status
+      render :text => message, :status => status, :content_type => "text/plain"
     end
   end
   
@@ -239,7 +316,7 @@ class ApplicationController < ActionController::Base
       end
     end
 
-    I18n.locale = request.compatible_language_from(I18n.available_locales)
+    I18n.locale = params[:locale] || request.compatible_language_from(I18n.available_locales) || I18n.default_locale
 
     response.headers['Content-Language'] = I18n.locale.to_s
   end
@@ -257,7 +334,7 @@ class ApplicationController < ActionController::Base
       report_error message, :bad_request
     rescue OSM::APIError => ex
       report_error ex.message, ex.status
-    rescue ActionController::UnknownAction => ex
+    rescue AbstractController::ActionNotFound => ex
       raise
     rescue Exception => ex
       logger.info("API threw unexpected #{ex.class} exception: #{ex.message}")
@@ -277,7 +354,7 @@ class ApplicationController < ActionController::Base
   ##
   # wrap an api call in a timeout
   def api_call_timeout
-    SystemTimer.timeout_after(API_TIMEOUT) do
+    OSM::Timer.timeout(API_TIMEOUT) do
       yield
     end
   rescue Timeout::Error
@@ -287,11 +364,17 @@ class ApplicationController < ActionController::Base
   ##
   # wrap a web page in a timeout
   def web_timeout
-    SystemTimer.timeout_after(WEB_TIMEOUT) do
+    OSM::Timer.timeout(WEB_TIMEOUT) do
       yield
     end
-  rescue ActionView::TemplateError => ex
-    if ex.original_exception.is_a?(Timeout::Error)
+  rescue ActionView::Template::Error => ex
+    ex = ex.original_exception
+
+    if ex.is_a?(ActiveRecord::StatementInvalid) and ex.message =~ /^Timeout::Error/
+      ex = Timeout::Error.new
+    end
+
+    if ex.is_a?(Timeout::Error)
       render :action => "timeout"
     else
       raise
@@ -318,7 +401,7 @@ class ApplicationController < ActionController::Base
     end)
 
     options[:cache_path] = Proc.new do |controller|
-      cache_path.merge(controller.params).merge(:locale => I18n.locale)
+      cache_path.merge(controller.params).merge(:host => SERVER_URL, :locale => I18n.locale)
     end
 
     actions.push(options)
@@ -330,7 +413,7 @@ class ApplicationController < ActionController::Base
   # extend expire_action to expire all variants
   def expire_action(options = {})
     I18n.available_locales.each do |locale|
-      super options.merge(:locale => locale)
+      super options.merge(:host => SERVER_URL, :locale => locale)
     end
   end
 
@@ -340,6 +423,39 @@ class ApplicationController < ActionController::Base
     !@user.nil?
   end
 
+  ##
+  # ensure that there is a "this_user" instance variable
+  def lookup_this_user
+    unless @this_user = User.active.find_by_display_name(params[:display_name])
+      render_unknown_user params[:display_name]
+    end
+  end
+
+  ##
+  # render a "no such user" page
+  def render_unknown_user(name)
+    @title = t "user.no_such_user.title"
+    @not_found_user = name
+
+    respond_to do |format|
+      format.html { render :template => "user/no_such_user", :status => :not_found }
+      format.all { render :nothing => true, :status => :not_found }
+    end
+  end
+
+  ##
+  # Unfortunately if a PUT or POST request that has a body fails to
+  # read it then Apache will sometimes fail to return the response it
+  # is given to the client properly, instead erroring:
+  #
+  #   https://issues.apache.org/bugzilla/show_bug.cgi?id=44782
+  #
+  # To work round this we call rewind on the body here, which is added
+  # as a filter, to force it to be fetched from Apache into a file.
+  def fetch_body
+    request.body.rewind
+  end
+
 private 
 
   # extract authorisation credentials from headers, returns user = nil if none
@@ -358,4 +474,18 @@ private
     return [user, pass] 
   end 
 
+  # used by oauth plugin to get the current user
+  def current_user
+    @user
+  end
+
+  # used by oauth plugin to set the current user
+  def current_user=(user)
+    @user=user
+  end
+
+  # override to stop oauth plugin sending errors
+  def invalid_oauth_response
+  end
+
 end