cafe-grader-web Commit - r168:1a0b47f4c2a4

cafe-grader-web

Commit `r168:1a0b47f4c2a4` public

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Description:

added timestamp to source download git-svn-id: http://theory.cpe.ku.ac.th/grader/web/trunk@365 6386c4cd-e34a-4fa8-8920-d93eb39b512e

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r168:1a0b47f4c2a4 - Fri, 17 Apr 2009 02:44:15 - 2 files changed: 10 inserted, 6 deleted

app/controllers/main_controller.rb ¶ +1 -6

               class MainController < ApplicationController
                 SYSTEM_MODE_CONF_KEY = 'system.mode'
                 before_filter :authenticate, :except => [:index, :login]
                 before_filter :check_viewability, :except => [:index, :login]
                 # COMMENTED OUT: filter in each action instead
                 # before_filter :verify_time_limit, :only => [:submit]
                 verify :method => :post, :only => [:submit],
                        :redirect_to => { :action => :index }
                 # COMMENT OUT: only need when having high load
                 # caches_action :index, :login
                 # NOTE: This method is not actually needed, 'config/routes.rb' has
                 # assigned action login as a default action.
                 def index
                   redirect_to :action => 'login'
                 end
                 def login
                   saved_notice = flash[:notice]
                   reset_session
                   flash[:notice] = saved_notice
                   # EXPERIMENT:
                   # Hide login if in single user mode and the url does not
                   # explicitly specify /login
                   #
                   # logger.info "PATH: #{request.path}"
                   # if Configuration['system.single_user_mode'] and
                   #     request.path!='/main/login'
                   #   @hidelogin = true
                   # end
                   @announcements = Announcement.find_for_frontpage
                   render :action => 'login', :layout => 'empty'
                 end
                 def list
                   prepare_list_information
                 end
                 def help
                   @user = User.find(session[:user_id])
                 end
                 def submit
                   user = User.find(session[:user_id])
                   @submission = Submission.new(params[:submission])
                   @submission.user = user
                   @submission.language_id = 0
                   if params['file']!=''
                     @submission.source = params['file'].read
                     @submission.source_filename = params['file'].original_filename
                   end
                   @submission.submitted_at = Time.new.gmtime
                   if Configuration[SYSTEM_MODE_CONF_KEY]=='contest' and
                       user.site!=nil and user.site.finished?
                     @submission.errors.add_to_base "The contest is over."
                     prepare_list_information
                     render :action => 'list' and return
                   end
                   if @submission.valid?
                     if @submission.save == false
               	flash[:notice] = 'Error saving your submission'
                     elsif Task.create(:submission_id => @submission.id,
                                       :status => Task::STATUS_INQUEUE) == false
               	flash[:notice] = 'Error adding your submission to task queue'
                     end
                   else
                     prepare_list_information
                     render :action => 'list' and return
                   end
                   redirect_to :action => 'list'
                 end
                 def source
                   submission = Submission.find(params[:id])
                   if submission.user_id == session[:user_id]
-            -       if submission.problem.output_only
-            -         fname = submission.source_filename
-            -       else
-            -         fname = submission.problem.name + '.' + submission.language.ext
-            -       end
                     send_data(submission.source,
-            - 		{:filename => fname,
+            + 		{:filename => submission.download_filename,
                                 :type => 'text/plain'})
                   else
                     flash[:notice] = 'Error viewing source'
                     redirect_to :action => 'list'
                   end
                 end
                 def compiler_msg
                   @submission = Submission.find(params[:id])
                   if @submission.user_id == session[:user_id]
                     render :action => 'compiler_msg', :layout => 'empty'
                   else
                     flash[:notice] = 'Error viewing source'
                     redirect_to :action => 'list'
                   end
                 end
                 def submission
                   @user = User.find(session[:user_id])
                   @problems = Problem.find_available_problems
                   if params[:id]==nil
                     @problem = nil
                     @submissions = nil
                   else
                     @problem = Problem.find_by_name(params[:id])
                     if not @problem.available
                       redirect_to :action => 'list'
                       flash[:notice] = 'Error: submissions for that problem are not viewable.'
                       return
                     end
                     @submissions = Submission.find_all_by_user_problem(@user.id, @problem.id)
                   end
                 end
                 def result
                   if !Configuration.show_grading_result
                     redirect_to :action => 'list' and return
                   end
                   @user = User.find(session[:user_id])
                   @submission = Submission.find(params[:id])
                   if @submission.user!=@user
                     flash[:notice] = 'You are not allowed to view result of other users.'
                     redirect_to :action => 'list' and return
                   end
                   prepare_grading_result(@submission)
                 end
                 def load_output
                   if !Configuration.show_grading_result or params[:num]==nil
                     redirect_to :action => 'list' and return
                   end
                   @user = User.find(session[:user_id])
                   @submission = Submission.find(params[:id])
                   if @submission.user!=@user
                     flash[:notice] = 'You are not allowed to view result of other users.'
                     redirect_to :action => 'list' and return
                   end
                   case_num = params[:num].to_i
                   out_filename = output_filename(@user.login,
                                                  @submission.problem.name,
                                                  @submission.id,
                                                  case_num)
                   if !FileTest.exists?(out_filename)
                     flash[:notice] = 'Output not found.'
                     redirect_to :action => 'list' and return
                   end
                   response.headers['Content-Type'] = "application/force-download"
                   response.headers['Content-Disposition'] = "attachment; filename=\"output-#{case_num}.txt\""
                   response.headers["X-Sendfile"] = out_filename
                   response.headers['Content-length'] = File.size(out_filename)
                   render :nothing => true
                 end
                 def error
                   @user = User.find(session[:user_id])
                 end
                 protected
                 def prepare_list_information
                   @problems = Problem.find_available_problems
                   @prob_submissions = Array.new
                   @user = User.find(session[:user_id])
                   @problems.each do |p|
                     sub = Submission.find_last_by_user_and_problem(@user.id,p.id)
                     if sub!=nil
                       @prob_submissions << { :count => sub.number, :submission => sub }
                     else
                       @prob_submissions << { :count => 0, :submission => nil }
                     end
                   end
                   if Configuration.show_tasks_to?(@user)
                     @announcements = Announcement.find_published(true)
                   else
                     @announcements = Announcement.find_published
                   end

app/models/submission.rb ¶ +9

               class Submission < ActiveRecord::Base
                 belongs_to :language
                 belongs_to :problem
                 belongs_to :user
                 before_validation :assign_problem
                 before_validation :assign_language
                 validates_presence_of :source
                 validates_length_of :source, :maximum => 100_000, :allow_blank => true, :message => 'too long'
                 validates_length_of :source, :minimum => 1, :allow_blank => true, :message => 'too short'
                 validate :must_have_valid_problem
                 validate :must_specify_language
                 before_save :assign_latest_number_if_new_recond
                 def self.find_last_by_user_and_problem(user_id, problem_id)
                   last_sub = find(:first,
                                   :conditions => {:user_id => user_id,
                                     :problem_id => problem_id},
                                   :order => 'number DESC')
                   return last_sub
                 end
                 def self.find_all_last_by_problem(problem_id)
                   # need to put in SQL command, maybe there's a better way
                   Submission.find_by_sql("SELECT * FROM submissions " +
               			   "WHERE id = " +
               			   "(SELECT MAX(id) FROM submissions AS subs " +
               			   "WHERE subs.user_id = submissions.user_id AND " +
                                          "problem_id = " + problem_id.to_s + " " +
               			   "GROUP BY user_id) " +
                                          "ORDER BY user_id")
                 end
                 def self.find_last_for_all_available_problems(user_id)
                   submissions = Array.new
                   problems = Problem.find_available_problems
                   problems.each do |problem|
                     sub = Submission.find_last_by_user_and_problem(user_id, problem.id)
                     submissions << sub if sub!=nil
                   end
                   submissions
                 end
                 def self.find_by_user_problem_number(user_id, problem_id, number)
                   Submission.find(:first,
                                   :conditions => {
                                     :user_id => user_id,
                                     :problem_id => problem_id,
                                     :number => number
                                   })
                 end
                 def self.find_all_by_user_problem(user_id, problem_id)
                   Submission.find(:all,
                                   :conditions => {
                                     :user_id => user_id,
                                     :problem_id => problem_id,
                                   })
                 end
+            +   def download_filename
+            +     if self.problem.output_only
+            +       return self.source_filename
+            +     else
+            +       timestamp = self.submitted_at.localtime.strftime("%H%M%S")
+            +       return "#{self.problem.name}-#{timestamp}.#{self.language.ext}"
+            +     end
+            +   end
+            +
                 protected
                 def self.find_option_in_source(option, source)
                   if source==nil
                     return nil
                   end
                   i = 0
                   source.each_line do |s|
                     if s =~ option
               	words = s.split
               	return words[1]
                     end
                     i = i + 1
                     if i==10
               	return nil
                     end
                   end
                   return nil
                 end
                 def self.find_language_in_source(source, source_filename="")
                   langopt = find_option_in_source(/^LANG:/,source)
                   if langopt
                     return (Language.find_by_name(langopt) ||
                             Language.find_by_pretty_name(langopt))
                   else
                     if source_filename
                       return Language.find_by_extension(source_filename.split('.').last)
                     else
                       return nil
                     end
                   end
                 end
                 def self.find_problem_in_source(source, source_filename="")
                   prob_opt = find_option_in_source(/^TASK:/,source)
                   if problem = Problem.find_by_name(prob_opt)
                     return problem
                   else
                     if source_filename
                       return Problem.find_by_name(source_filename.split('.').first)
                     else
                       return nil
                     end
                   end
                 end
                 def assign_problem
                   if self.problem_id!=-1
                     begin
                       self.problem = Problem.find(self.problem_id)
                     rescue ActiveRecord::RecordNotFound
                       self.problem = nil
                     end
                   else
                     self.problem = Submission.find_problem_in_source(self.source,
                                                                      self.source_filename)
                   end
                 end
                 def assign_language
                   self.language = Submission.find_language_in_source(self.source,
                                                                      self.source_filename)
                 end
                 # validation codes
                 def must_specify_language
                   return if self.source==nil
                   # for output_only tasks
                   return if self.problem!=nil and self.problem.output_only
                   if self.language==nil
                     errors.add('source',"must specify programming language") unless self.language!=nil
                   end
                 end
                 def must_have_valid_problem
                   return if self.source==nil
                   if self.problem==nil
                     errors.add('problem',"must be specified.")
                   elsif (!self.problem.available) and (self.new_record?)
                     errors.add('problem',"must be valid.")
                   end
                 end
                 # callbacks
                 def assign_latest_number_if_new_recond
                   return if !self.new_record?
                   latest = Submission.find_last_by_user_and_problem(self.user_id, self.problem_id)
                   self.number = (latest==nil) ? 1 : latest.number + 1;
                 end
               end

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r168:1a0b47f4c2a4 - Fri, 17 Apr 2009 02:44:15 - 2 files changed: 10 inserted, 6 deleted

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r168:1a0b47f4c2a4 - Fri, 17 Apr 2009 02:44:15 - 2 files changed: 10 inserted, 6 deleted

Commit `r168:1a0b47f4c2a4` public