X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/2f3e23f6eb2bd571a39486773f0f10d65a2398a1..392aa71015d68d7633da8c3dea6e43e281bc8ac4:/app/controllers/application_controller.rb

diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index d7debcb6d..34987c938 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -2,13 +2,20 @@
 # Likewise, all the methods added will be available for all controllers.
 class ApplicationController < ActionController::Base
 
-  if OSM_STATUS == :database_readonly or OSM_STATUS == :database_offline
+  if STATUS == :database_readonly or STATUS == :database_offline
     session :off
   end
 
   def authorize_web
     if session[:user]
-      @user = User.find(session[:user], :conditions => {:visible => true})
+      @user = User.find(session[:user], :conditions => {:status => ["active", "confirmed", "suspended"]})
+
+      if @user.status == "suspended"
+        session[:user] = nil
+        session_expires_automatically
+
+        redirect_to :controller => "user", :action => "suspended"
+      end
     elsif session[:token]
       @user = User.authenticate(:token => session[:token])
       session[:user] = @user.id
@@ -22,19 +29,90 @@ class ApplicationController < ActionController::Base
     redirect_to :controller => 'user', :action => 'login', :referer => request.request_uri unless @user
   end
 
+  ##
+  # requires the user to be logged in by the token or HTTP methods, or have an 
+  # OAuth token with the right capability. this method is a bit of a pain to call 
+  # directly, since it's cumbersome to call filters with arguments in rails. to
+  # make it easier to read and write the code, there are some utility methods
+  # below.
+  def require_capability(cap)
+    # when the current token is nil, it means the user logged in with a different
+    # method, otherwise an OAuth token was used, which has to be checked.
+    unless current_token.nil?
+      unless current_token.read_attribute(cap)
+        render :text => "OAuth token doesn't have that capability.", :status => :forbidden
+        return false
+      end
+    end
+  end
+
+  ##
+  # require the user to have cookies enabled in their browser
+  def require_cookies
+    if request.cookies["_osm_session"].to_s == ""
+      if params[:cookie_test].nil?
+        redirect_to params.merge(:cookie_test => "true")
+        return false
+      else
+        flash.now[:warning] = t 'application.require_cookies.cookies_needed'
+      end
+    end
+  end
+
+  # Utility methods to make the controller filter methods easier to read and write.
+  def require_allow_read_prefs
+    require_capability(:allow_read_prefs)
+  end
+  def require_allow_write_prefs
+    require_capability(:allow_write_prefs)
+  end
+  def require_allow_write_diary
+    require_capability(:allow_write_diary)
+  end
+  def require_allow_write_api
+    require_capability(:allow_write_api)
+  end
+  def require_allow_read_gpx
+    require_capability(:allow_read_gpx)
+  end
+  def require_allow_write_gpx
+    require_capability(:allow_write_gpx)
+  end
+
   ##
   # sets up the @user object for use by other methods. this is mostly called
   # from the authorize method, but can be called elsewhere if authorisation
   # is optional.
   def setup_user_auth
-    username, passwd = get_auth_data # parse from headers
-    # authenticate per-scheme
-    if username.nil?
-      @user = nil # no authentication provided - perhaps first connect (client should retry after 401)
-    elsif username == 'token' 
-      @user = User.authenticate(:token => passwd) # preferred - random token for user from db, passed in basic auth
+    # try and setup using OAuth
+    if oauthenticate
+      @user = current_token.user
     else
-      @user = User.authenticate(:username => username, :password => passwd) # basic auth
+      username, passwd = get_auth_data # parse from headers
+      # authenticate per-scheme
+      if username.nil?
+        @user = nil # no authentication provided - perhaps first connect (client should retry after 401)
+      elsif username == 'token'
+        @user = User.authenticate(:token => passwd) # preferred - random token for user from db, passed in basic auth
+      else
+        @user = User.authenticate(:username => username, :password => passwd) # basic auth
+      end
+    end
+
+    # have we identified the user?
+    if @user
+      # check if the user has been banned
+      if not  @user.active_blocks.empty?
+        # NOTE: need slightly more helpful message than this.
+        render :text => t('application.setup_user_auth.blocked'), :status => :forbidden
+      end
+
+      # if the user hasn't seen the contributor terms then don't
+      # allow editing - they have to go to the web site and see
+      # (but can decline) the CTs to continue.
+      if REQUIRE_TERMS_SEEN and not @user.terms_seen
+        render :text => t('application.setup_user_auth.need_to_see_terms'), :status => :forbidden
+      end
     end
   end
 
@@ -45,7 +123,6 @@ class ApplicationController < ActionController::Base
     # handle authenticate pass/fail
     unless @user
       # no auth, the user does not exist or the password was wrong
-      response.headers["Status"] = "Unauthorized" 
       response.headers["WWW-Authenticate"] = "Basic realm=\"#{realm}\"" 
       render :text => errormessage, :status => :unauthorized
       return false
@@ -53,39 +130,36 @@ class ApplicationController < ActionController::Base
   end 
 
   def check_database_readable(need_api = false)
-    if OSM_STATUS == :database_offline or (need_api and OSM_STATUS == :api_offline)
+    if STATUS == :database_offline or (need_api and STATUS == :api_offline)
       redirect_to :controller => 'site', :action => 'offline'
     end
   end
 
   def check_database_writable(need_api = false)
-    if OSM_STATUS == :database_offline or OSM_STATUS == :database_readonly or
-       (need_api and (OSM_STATUS == :api_offline or OSM_STATUS == :api_readonly))
+    if STATUS == :database_offline or STATUS == :database_readonly or
+       (need_api and (STATUS == :api_offline or STATUS == :api_readonly))
       redirect_to :controller => 'site', :action => 'offline'
     end
   end
 
   def check_api_readable
-    if OSM_STATUS == :database_offline or OSM_STATUS == :api_offline
-      response.headers['Error'] = "Database offline for maintenance"
-      render :nothing => true, :status => :service_unavailable
+    if STATUS == :database_offline or STATUS == :api_offline
+      report_error "Database offline for maintenance", :service_unavailable
       return false
     end
   end
 
   def check_api_writable
-    if OSM_STATUS == :database_offline or OSM_STATUS == :database_readonly or
-       OSM_STATUS == :api_offline or OSM_STATUS == :api_readonly
-      response.headers['Error'] = "Database offline for maintenance"
-      render :nothing => true, :status => :service_unavailable
+    if STATUS == :database_offline or STATUS == :database_readonly or
+       STATUS == :api_offline or STATUS == :api_readonly
+      report_error "Database offline for maintenance", :service_unavailable
       return false
     end
   end
 
   def require_public_data
     unless @user.data_public?
-      response.headers['Error'] = "You must make your edits public to upload new data"
-      render :nothing => true, :status => :forbidden
+      report_error "You must make your edits public to upload new data", :forbidden
       return false
     end
   end
@@ -98,13 +172,27 @@ class ApplicationController < ActionController::Base
   def report_error(message, status = :bad_request)
     # Todo: some sort of escaping of problem characters in the message
     response.headers['Error'] = message
-    render :text => message, :status => status
+
+    if request.headers['X-Error-Format'] and
+       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("message") << message)
+
+      render :text => result.to_s, :content_type => "text/xml"
+    else
+      render :text => message, :status => status
+    end
   end
   
   def set_locale
+    response.header['Vary'] = 'Accept-Language'
+
     if @user
       if !@user.languages.empty?
         request.user_preferred_languages = @user.languages
+        response.header['Vary'] = '*'
       elsif !request.user_preferred_languages.empty?
         @user.languages = request.user_preferred_languages
         @user.save
@@ -129,7 +217,11 @@ class ApplicationController < ActionController::Base
       report_error message, :bad_request
     rescue OSM::APIError => ex
       report_error ex.message, ex.status
+    rescue ActionController::UnknownAction => ex
+      raise
     rescue Exception => ex
+      logger.info("API threw unexpected #{ex.class} exception: #{ex.message}")
+      ex.backtrace.each { |l| logger.info(l) }
       report_error "#{ex.class}: #{ex.message}", :internal_server_error
     end
   end
@@ -142,13 +234,74 @@ class ApplicationController < ActionController::Base
     raise OSM::APIBadMethodError.new(method) unless ok
   end
 
+  ##
+  # wrap an api call in a timeout
   def api_call_timeout
-    Timeout::timeout(APP_CONFIG['api_timeout'], OSM::APITimeoutError) do
+    SystemTimer.timeout_after(API_TIMEOUT) do
+      yield
+    end
+  rescue Timeout::Error
+    raise OSM::APITimeoutError
+  end
+
+  ##
+  # wrap a web page in a timeout
+  def web_timeout
+    SystemTimer.timeout_after(WEB_TIMEOUT) do
       yield
     end
+  rescue ActionView::TemplateError => ex
+    if ex.original_exception.is_a?(Timeout::Error)
+      render :action => "timeout"
+    else
+      raise
+    end
+  rescue Timeout::Error
+    render :action => "timeout"
+  end
+
+  ##
+  # extend caches_action to include the parameters, locale and logged in
+  # status in all cache keys
+  def self.caches_action(*actions)
+    options = actions.extract_options!
+    cache_path = options[:cache_path] || Hash.new
+
+    options[:unless] = case options[:unless]
+                       when NilClass then Array.new
+                       when Array then options[:unless]
+                       else unlessp = [ options[:unless] ]
+                       end
+
+    options[:unless].push(Proc.new do |controller|
+      controller.params.include?(:page)
+    end)
+
+    options[:cache_path] = Proc.new do |controller|
+      cache_path.merge(controller.params).merge(:locale => I18n.locale)
+    end
+
+    actions.push(options)
+
+    super *actions
+  end
+
+  ##
+  # extend expire_action to expire all variants
+  def expire_action(options = {})
+    I18n.available_locales.each do |locale|
+      super options.merge(:locale => locale)
+    end
+  end
+
+  ##
+  # is the requestor logged in?
+  def logged_in?
+    !@user.nil?
   end
 
 private 
+
   # extract authorisation credentials from headers, returns user = nil if none
   def get_auth_data 
     if request.env.has_key? 'X-HTTP_AUTHORIZATION'          # where mod_rewrite might have put it