X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/c8f9387420233bd7e845cb205c3b68ede1f90024..c321c026f265c6c2b25a3d564232a12f6ca48c0a:/app/controllers/application.rb?ds=sidebyside diff --git a/app/controllers/application.rb b/app/controllers/application.rb index 82ef80920..f5ea0063d 100644 --- a/app/controllers/application.rb +++ b/app/controllers/application.rb @@ -2,46 +2,103 @@ # Likewise, all the methods added will be available for all controllers. class ApplicationController < ActionController::Base + if OSM_STATUS == :database_offline + session :off + end + def authorize_web + if session[:user] + @user = User.find(session[:user], :conditions => {:visible => true}) + elsif session[:token] + @user = User.authenticate(:token => session[:token]) + session[:user] = @user.id + end + rescue Exception => ex + logger.info("Exception authorizing user: #{ex.to_s}") + @user = nil + end - # HTTP AUTH stuff for the API - - def authorize(realm='Web Password', errormessage="Could't authenticate you") - username, passwd = get_auth_data - # check if authorized - # try to get user - if @user = User.authenticate(username, passwd) - # user exists and password is correct ... horray! - if @user.methods.include? 'lastlogin' - # note last login - @session['lastlogin'] = user.lastlogin - @user.last.login = Time.now - @user.save() - @session["User.id"] = @user.id - end - else - # the user does not exist or the password was wrong - @response.headers["Status"] = "Unauthorized" - @response.headers["WWW-Authenticate"] = "Basic realm=\"#{realm}\"" - render_text(errormessage, 401) + def require_user + redirect_to :controller => 'user', :action => 'login', :referer => request.request_uri unless @user + 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 + 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 + # 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 end end - private + def check_database_availability(need_api = false) + 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 + if OSM_STATUS == :database_offline or OSM_STATUS == :api_offline + response.headers['Error'] = "Database offline for maintenance" + render :nothing => true, :status => :service_unavailable + return false + end + end + + def check_write_availability + if OSM_STATUS == :database_offline 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 + + # 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 + # Todo: some sort of escaping of problem characters in the message + response.headers['Error'] = message + end + +private + + # extract authorisation credentials from headers, returns user = nil if none def get_auth_data - user, pass = '', '' - # extract authorisation credentials - if request.env.has_key? 'X-HTTP_AUTHORIZATION' - # try to get it where mod_rewrite might have put it - authdata = @request.env['X-HTTP_AUTHORIZATION'].to_s.split - elsif request.env.has_key? 'HTTP_AUTHORIZATION' - # this is the regular location - authdata = @request.env['HTTP_AUTHORIZATION'].to_s.split + if request.env.has_key? 'X-HTTP_AUTHORIZATION' # where mod_rewrite might have put it + authdata = request.env['X-HTTP_AUTHORIZATION'].to_s.split + elsif request.env.has_key? 'REDIRECT_X_HTTP_AUTHORIZATION' # mod_fcgi + authdata = request.env['REDIRECT_X_HTTP_AUTHORIZATION'].to_s.split + elsif request.env.has_key? 'HTTP_AUTHORIZATION' # regular location + authdata = request.env['HTTP_AUTHORIZATION'].to_s.split end - - # at the moment we only support basic authentication + # only basic authentication supported if authdata and authdata[0] == 'Basic' - user, pass = Base64.decode64(authdata[1]).split(':')[0..1] + user, pass = Base64.decode64(authdata[1]).split(':',2) end return [user, pass] end