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[rails.git] / app / controllers / application.rb

diff --git a/app/controllers/application.rb b/app/controllers/application.rb
index 579c50e95a725217070beb7532d2880899636c5d..c5624db146b4cdbfb86d03f84308c2d6f721f96e 100644 (file)
--- a/app/controllers/application.rb
+++ b/app/controllers/application.rb
@@ -2,7 +2,7 @@
 # Likewise, all the methods added will be available for all controllers.
 class ApplicationController < ActionController::Base
 
 # Likewise, all the methods added will be available for all controllers.
 class ApplicationController < ActionController::Base
 

-  if OSM_STATUS == :database_offline
+  if OSM_STATUS == :database_readonly or OSM_STATUS == :database_offline

     session :off
   end
 
     session :off
   end
 


@@ -22,7 +22,11 @@ class ApplicationController < ActionController::Base
     redirect_to :controller => 'user', :action => 'login', :referer => request.request_uri unless @user
   end
 
     redirect_to :controller => 'user', :action => 'login', :referer => request.request_uri unless @user
   end
 

-  def authorize(realm='Web Password', errormessage="Couldn't authenticate you") 
+  ##
+  # 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?
     username, passwd = get_auth_data # parse from headers
     # authenticate per-scheme
     if username.nil?


@@ -32,6 +36,11 @@ class ApplicationController < ActionController::Base
     else
       @user = User.authenticate(:username => username, :password => passwd) # basic auth
     end
     else
       @user = User.authenticate(:username => username, :password => passwd) # basic auth
     end

+  end
+
+  def authorize(realm='Web Password', errormessage="Couldn't authenticate you") 
+    # make the @user object from any auth sources we have
+    setup_user_auth

 
     # handle authenticate pass/fail
     unless @user
 
     # handle authenticate pass/fail
     unless @user


@@ -43,13 +52,20 @@ class ApplicationController < ActionController::Base
     end 
   end 
 
     end 
   end 
 

-  def check_database_availability(need_api = false)
+  def check_database_readable(need_api = false)

     if OSM_STATUS == :database_offline or (need_api and OSM_STATUS == :api_offline)
       redirect_to :controller => 'site', :action => 'offline'
     end
   end
 
     if OSM_STATUS == :database_offline or (need_api and OSM_STATUS == :api_offline)
       redirect_to :controller => 'site', :action => 'offline'
     end
   end
 

-  def check_read_availability
+  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))
+      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 OSM_STATUS == :database_offline or OSM_STATUS == :api_offline
       response.headers['Error'] = "Database offline for maintenance"
       render :nothing => true, :status => :service_unavailable


@@ -57,27 +73,80 @@ class ApplicationController < ActionController::Base
     end
   end
 
     end
   end
 

-  def check_write_availability
-    if OSM_STATUS == :database_offline or OSM_STATUS == :api_offline or OSM_STATUS == :api_readonly
+  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
       return false
     end
   end
 
       response.headers['Error'] = "Database offline for maintenance"
       render :nothing => true, :status => :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
+      return false
+    end
+  end
+

   # Report and error to the user
   # (If anyone ever fixes Rails so it can set a http status "reason phrase",
   #  rather than only a status code and having the web engine make up a 
   #  phrase from that, we can also put the error message into the status
   #  message. For now, rails won't let us)
   # Report and error to the user
   # (If anyone ever fixes Rails so it can set a http status "reason phrase",
   #  rather than only a status code and having the web engine make up a 
   #  phrase from that, we can also put the error message into the status
   #  message. For now, rails won't let us)

-  def report_error(message)
-    render :text => message, :status => :bad_request
+  def report_error(message, status = :bad_request)

     # Todo: some sort of escaping of problem characters in the message
     response.headers['Error'] = message
     # Todo: some sort of escaping of problem characters in the message
     response.headers['Error'] = message

+    render :text => message, :status => status

   end
   end

+  
+  def set_locale
+    if @user
+      if !@user.languages.empty?
+        request.user_preferred_languages = @user.languages
+      elsif !request.user_preferred_languages.empty?
+        @user.languages = request.user_preferred_languages
+        @user.save
+      end
+    end

 
 

-private 
+    I18n.locale = request.compatible_language_from(I18n.available_locales)
+  end
+
+  def api_call_handle_error
+    begin
+      yield
+    rescue ActiveRecord::RecordNotFound => ex
+      render :nothing => true, :status => :not_found
+    rescue LibXML::XML::Error, ArgumentError => ex
+      report_error ex.message, :bad_request
+    rescue ActiveRecord::RecordInvalid => ex
+      message = "#{ex.record.class} #{ex.record.id}: "
+      ex.record.errors.each { |attr,msg| message << "#{attr}: #{msg} (#{ex.record[attr].inspect})" }
+      report_error message, :bad_request
+    rescue OSM::APIError => ex
+      report_error ex.message, ex.status
+    rescue Exception => ex
+      report_error "#{ex.class}: #{ex.message}", :internal_server_error
+    end
+  end

 
 

+  ##
+  # asserts that the request method is the +method+ given as a parameter
+  # or raises a suitable error. +method+ should be a symbol, e.g: :put or :get.
+  def assert_method(method)
+    ok = request.send((method.to_s.downcase + "?").to_sym)
+    raise OSM::APIBadMethodError.new(method) unless ok
+  end
+
+  def api_call_timeout
+    Timeout::timeout(APP_CONFIG['api_timeout'], OSM::APITimeoutError) do
+      yield
+    end
+  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 
   # 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