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class MainController < ApplicationController
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before_filter :authenticate, :except => [:index, :login]
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before_filter :check_viewability, :except => [:index, :login]
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append_before_filter :confirm_and_update_start_time,
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:except => [:index,
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:login,
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:confirm_contest_start]
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# to prevent log in box to be shown when user logged out of the
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# system only in some tab
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prepend_before_filter :reject_announcement_refresh_when_logged_out,
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:only => [:announcements]
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# COMMENTED OUT: filter in each action instead
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# before_filter :verify_time_limit, :only => [:submit]
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verify :method => :post, :only => [:submit],
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:redirect_to => { :action => :index }
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# COMMENT OUT: only need when having high load
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# caches_action :index, :login
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# NOTE: This method is not actually needed, 'config/routes.rb' has
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# assigned action login as a default action.
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def index
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redirect_to :action => 'login'
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end
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def login
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saved_notice = flash[:notice]
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reset_session
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flash.now[:notice] = saved_notice
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# EXPERIMENT:
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# Hide login if in single user mode and the url does not
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# explicitly specify /login
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#
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# logger.info "PATH: #{request.path}"
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# if GraderConfiguration['system.single_user_mode'] and
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# request.path!='/main/login'
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# @hidelogin = true
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# end
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@announcements = Announcement.find_for_frontpage
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render :action => 'login', :layout => 'empty'
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end
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def list
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prepare_list_information
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end
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def help
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@user = User.find(session[:user_id])
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end
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def submit
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user = User.find(session[:user_id])
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@submission = Submission.new
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@submission.problem_id = params[:submission][:problem_id]
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@submission.user = user
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@submission.language_id = 0
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if (params['file']) and (params['file']!='')
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@submission.source = params['file'].read
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@submission.source_filename = params['file'].original_filename
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end
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@submission.submitted_at = Time.new.gmtime
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@submission.ip_address = request.remote_ip
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if GraderConfiguration.time_limit_mode? and user.contest_finished?
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@submission.errors.add_to_base "The contest is over."
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prepare_list_information
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render :action => 'list' and return
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end
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if @submission.valid?
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if @submission.save == false
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flash[:notice] = 'Error saving your submission'
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elsif Task.create(:submission_id => @submission.id,
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:status => Task::STATUS_INQUEUE) == false
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flash[:notice] = 'Error adding your submission to task queue'
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end
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else
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prepare_list_information
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render :action => 'list' and return
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end
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redirect_to :action => 'list'
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end
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def source
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submission = Submission.find(params[:id])
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if ((submission.user_id == session[:user_id]) and
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(submission.problem != nil) and
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(submission.problem.available))
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send_data(submission.source,
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{:filename => submission.download_filename,
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:type => 'text/plain'})
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else
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flash[:notice] = 'Error viewing source'
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redirect_to :action => 'list'
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end
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end
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def compiler_msg
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@submission = Submission.find(params[:id])
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if @submission.user_id == session[:user_id]
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render :action => 'compiler_msg', :layout => 'empty'
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else
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flash[:notice] = 'Error viewing source'
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redirect_to :action => 'list'
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end
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end
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def submission
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@user = User.find(session[:user_id])
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@problems = @user.available_problems
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if params[:id]==nil
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@problem = nil
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@submissions = nil
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else
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@problem = Problem.find_by_name(params[:id])
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if not @problem.available
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redirect_to :action => 'list'
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flash[:notice] = 'Error: submissions for that problem are not viewable.'
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return
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end
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@submissions = Submission.find_all_by_user_problem(@user.id, @problem.id)
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end
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end
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def result
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if !GraderConfiguration.show_grading_result
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redirect_to :action => 'list' and return
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end
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@user = User.find(session[:user_id])
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@submission = Submission.find(params[:id])
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if @submission.user!=@user
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flash[:notice] = 'You are not allowed to view result of other users.'
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redirect_to :action => 'list' and return
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end
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prepare_grading_result(@submission)
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end
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def load_output
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if !GraderConfiguration.show_grading_result or params[:num]==nil
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redirect_to :action => 'list' and return
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end
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@user = User.find(session[:user_id])
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@submission = Submission.find(params[:id])
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if @submission.user!=@user
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flash[:notice] = 'You are not allowed to view result of other users.'
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redirect_to :action => 'list' and return
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end
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case_num = params[:num].to_i
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out_filename = output_filename(@user.login,
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@submission.problem.name,
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@submission.id,
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case_num)
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if !FileTest.exists?(out_filename)
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flash[:notice] = 'Output not found.'
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redirect_to :action => 'list' and return
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end
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if defined?(USE_APACHE_XSENDFILE) and USE_APACHE_XSENDFILE
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response.headers['Content-Type'] = "application/force-download"
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response.headers['Content-Disposition'] = "attachment; filename=\"output-#{case_num}.txt\""
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response.headers["X-Sendfile"] = out_filename
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response.headers['Content-length'] = File.size(out_filename)
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render :nothing => true
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else
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send_file out_filename, :stream => false, :filename => "output-#{case_num}.txt", :type => "text/plain"
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end
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end
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def error
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@user = User.find(session[:user_id])
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end
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# announcement refreshing and hiding methods
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def announcements
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if params.has_key? 'recent'
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prepare_announcements(params[:recent])
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else
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prepare_announcements
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end
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render(:partial => 'announcement',
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:collection => @announcements,
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:locals => {:announcement_effect => true})
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end
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def confirm_contest_start
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user = User.find(session[:user_id])
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if request.method == :post
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user.update_start_time
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redirect_to :action => 'list'
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else
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@contests = user.contests
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@user = user
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end
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end
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protected
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def prepare_announcements(recent=nil)
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if GraderConfiguration.show_tasks_to?(@user)
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@announcements = Announcement.find_published(true)
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else
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@announcements = Announcement.find_published
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end
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if recent!=nil
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recent_id = recent.to_i
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@announcements = @announcements.find_all { |a| a.id > recent_id }
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end
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end
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def prepare_list_information
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@user = User.find(session[:user_id])
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if not GraderConfiguration.multicontests?
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@problems = @user.available_problems
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else
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@contest_problems = @user.available_problems_group_by_contests
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@problems = @user.available_problems
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end
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@prob_submissions = {}
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@problems.each do |p|
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sub = Submission.find_last_by_user_and_problem(@user.id,p.id)
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if sub!=nil
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@prob_submissions[p.id] = { :count => sub.number, :submission => sub }
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else
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@prob_submissions[p.id] = { :count => 0, :submission => nil }
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end
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end
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prepare_announcements
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end
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def check_viewability
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@user = User.find(session[:user_id])
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if (!GraderConfiguration.show_tasks_to?(@user)) and
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((action_name=='submission') or (action_name=='submit'))
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redirect_to :action => 'list' and return
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end
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end
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def prepare_grading_result(submission)
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if GraderConfiguration.task_grading_info.has_key? submission.problem.name
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grading_info = GraderConfiguration.task_grading_info[submission.problem.name]
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else
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# guess task info from problem.full_score
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cases = submission.problem.full_score / 10
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grading_info = {
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'testruns' => cases,
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'testcases' => cases
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}
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end
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@test_runs = []
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if grading_info['testruns'].is_a? Integer
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trun_count = grading_info['testruns']
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trun_count.times do |i|
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@test_runs << [ read_grading_result(@user.login,
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submission.problem.name,
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submission.id,
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i+1) ]
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end
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else
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grading_info['testruns'].keys.sort.each do |num|
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run = []
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testrun = grading_info['testruns'][num]
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testrun.each do |c|
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run << read_grading_result(@user.login,
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submission.problem.name,
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submission.id,
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c)
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end
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@test_runs << run
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end
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end
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end
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def grading_result_dir(user_name, problem_name, submission_id, case_num)
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return "#{GRADING_RESULT_DIR}/#{user_name}/#{problem_name}/#{submission_id}/test-result/#{case_num}"
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end
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def output_filename(user_name, problem_name, submission_id, case_num)
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dir = grading_result_dir(user_name,problem_name, submission_id, case_num)
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return "#{dir}/output.txt"
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end
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def read_grading_result(user_name, problem_name, submission_id, case_num)
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dir = grading_result_dir(user_name,problem_name, submission_id, case_num)
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result_file_name = "#{dir}/result"
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if !FileTest.exists?(result_file_name)
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return {:num => case_num, :msg => 'program did not run'}
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else
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results = File.open(result_file_name).readlines
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run_stat = extract_running_stat(results)
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output_filename = "#{dir}/output.txt"
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if FileTest.exists?(output_filename)
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output_file = true
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output_size = File.size(output_filename)
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else
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output_file = false
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output_size = 0
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end
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return {
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:num => case_num,
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:msg => results[0],
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:run_stat => run_stat,
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:output => output_file,
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:output_size => output_size
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}
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end
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end
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# copied from grader/script/lib/test_request_helper.rb
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def extract_running_stat(results)
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running_stat_line = results[-1]
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# extract exit status line
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run_stat = ""
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if !(/[Cc]orrect/.match(results[0]))
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run_stat = results[0].chomp
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else
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run_stat = 'Program exited normally'
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end
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logger.info "Stat line: #{running_stat_line}"
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# extract running time
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if res = /r(.*)u(.*)s/.match(running_stat_line)
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seconds = (res[1].to_f + res[2].to_f)
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time_stat = "Time used: #{seconds} sec."
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else
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seconds = nil
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time_stat = "Time used: n/a sec."
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end
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# extract memory usage
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if res = /s(.*)m/.match(running_stat_line)
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memory_used = res[1].to_i
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else
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memory_used = -1
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end
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return {
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:msg => "#{run_stat}\n#{time_stat}",
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:running_time => seconds,
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:exit_status => run_stat,
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:memory_usage => memory_used
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}
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end
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def confirm_and_update_start_time
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user = User.find(session[:user_id])
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if (GraderConfiguration.indv_contest_mode? and
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GraderConfiguration['contest.confirm_indv_contest_start'] and
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!user.contest_started?)
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redirect_to :action => 'confirm_contest_start' and return
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end
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if not GraderConfiguration.analysis_mode?
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user.update_start_time
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end
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end
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def reject_announcement_refresh_when_logged_out
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if not session[:user_id]
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render :text => 'Access forbidden', :status => 403
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end
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if GraderConfiguration.multicontests?
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user = User.find(session[:user_id])
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if user.contest_stat.forced_logout
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render :text => 'Access forbidden', :status => 403
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end
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end
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end
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end
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