class TraceController < ApplicationController
+ layout 'site'
+
+ skip_before_filter :verify_authenticity_token, :only => [:api_create, :api_read, :api_update, :api_delete, :api_data]
+ before_filter :authorize_web
+ before_filter :set_locale
+ before_filter :require_user, :only => [:mine, :create, :edit, :delete]
+ before_filter :authorize, :only => [:api_create, :api_read, :api_update, :api_delete, :api_data]
+ before_filter :check_database_readable, :except => [:api_read, :api_data]
+ before_filter :check_database_writable, :only => [:create, :edit, :delete, :api_create, :api_update, :api_delete]
+ before_filter :check_api_readable, :only => [:api_read, :api_data]
+ before_filter :check_api_writable, :only => [:api_create, :api_update, :api_delete]
+ before_filter :require_allow_read_gpx, :only => [:api_read, :api_data]
+ before_filter :require_allow_write_gpx, :only => [:api_create, :api_update, :api_delete]
+ before_filter :offline_warning, :only => [:mine, :view]
+ before_filter :offline_redirect, :only => [:create, :edit, :delete, :data, :api_create, :api_delete, :api_data]
+ around_filter :api_call_handle_error, :only => [:api_create, :api_read, :api_update, :api_delete, :api_data]
+
+ caches_action :list, :unless => :logged_in?, :layout => false
+ caches_action :view, :layout => false
+ caches_action :georss, :layout => true
+ cache_sweeper :trace_sweeper, :only => [:create, :edit, :delete, :api_create, :api_update, :api_delete]
+ cache_sweeper :tracetag_sweeper, :only => [:create, :edit, :delete, :api_create, :api_update, :api_delete]
+
+ # Counts and selects pages of GPX traces for various criteria (by user, tags, public etc.).
+ # target_user - if set, specifies the user to fetch traces for. if not set will fetch all traces
+ def list
+ # from display name, pick up user id if one user's traces only
+ display_name = params[:display_name]
+ if !display_name.blank?
+ target_user = User.active.where(:display_name => display_name).first
+ if target_user.nil?
+ @title = t'trace.no_such_user.title'
+ @not_found_user = display_name
+ render :action => 'no_such_user', :status => :not_found
+ return
+ end
+ end
+
+ # set title
+ if target_user.nil?
+ @title = t 'trace.list.public_traces'
+ elsif @user and @user == target_user
+ @title = t 'trace.list.your_traces'
+ else
+ @title = t 'trace.list.public_traces_from', :user => target_user.display_name
+ end
+
+ @title += t 'trace.list.tagged_with', :tags => params[:tag] if params[:tag]
+
+ # four main cases:
+ # 1 - all traces, logged in = all public traces + all user's (i.e + all mine)
+ # 2 - all traces, not logged in = all public traces
+ # 3 - user's traces, logged in as same user = all user's traces
+ # 4 - user's traces, not logged in as that user = all user's public traces
+ if target_user.nil? # all traces
+ if @user
+ @traces = Trace.visible_to(@user) #1
+ else
+ @traces = Trace.public #2
+ end
+ else
+ if @user and @user == target_user
+ @traces = @user.traces #3 (check vs user id, so no join + can't pick up non-public traces by changing name)
+ else
+ @traces = target_user.traces.public #4
+ end
+ end
+
+ if params[:tag]
+ @tag = params[:tag]
+
+ files = Tracetag.where(:tag => params[:tag]).select(:gpx_id).all
+
+ if files.length > 0
+ @traces = @traces.where(:id => files.collect { |tt| tt.gpx_id })
+ end
+ end
+
+ @page = (params[:page] || 1).to_i
+ @page_size = 20
+
+ @traces = @traces.visible
+ @traces = @traces.order("timestamp DESC")
+ @traces = @traces.offset((@page - 1) * @page_size)
+ @traces = @traces.limit(@page_size)
+ @traces = @traces.includes(:user, :tags)
+
+ # put together SET of tags across traces, for related links
+ tagset = Hash.new
+ @traces.each do |trace|
+ trace.tags.reload if params[:tag] # if searched by tag, ActiveRecord won't bring back other tags, so do explicitly here
+ trace.tags.each do |tag|
+ tagset[tag.tag] = tag.tag
+ end
+ end
+
+ # final helper vars for view
+ @target_user = target_user
+ @display_name = target_user.display_name if target_user
+ @all_tags = tagset.values
+ end
+
+ def mine
+ redirect_to :action => :list, :display_name => @user.display_name
+ end
+
+ def view
+ @trace = Trace.find(params[:id])
+
+ if @trace and @trace.visible? and
+ (@trace.public? or @trace.user == @user)
+ @title = t 'trace.view.title', :name => @trace.name
+ else
+ flash[:error] = t 'trace.view.trace_not_found'
+ redirect_to :controller => 'trace', :action => 'list'
+ end
+ rescue ActiveRecord::RecordNotFound
+ flash[:error] = t 'trace.view.trace_not_found'
+ redirect_to :controller => 'trace', :action => 'list'
+ end
+
+ def create
+ if params[:trace]
+ logger.info(params[:trace][:gpx_file].class.name)
+
+ if params[:trace][:gpx_file].respond_to?(:read)
+ begin
+ do_create(params[:trace][:gpx_file], params[:trace][:tagstring],
+ params[:trace][:description], params[:trace][:visibility])
+ rescue => ex
+ logger.debug ex
+ end
+
+ if @trace.id
+ logger.info("id is #{@trace.id}")
+ flash[:notice] = t 'trace.create.trace_uploaded'
+
+ if @user.traces.count(:conditions => { :inserted => false }) > 4
+ flash[:warning] = t 'trace.trace_header.traces_waiting', :count => @user.traces.count(:conditions => { :inserted => false })
+ end
+
+ redirect_to :action => :list, :display_name => @user.display_name
+ end
+ else
+ @trace = Trace.new({:name => "Dummy",
+ :tagstring => params[:trace][:tagstring],
+ :description => params[:trace][:description],
+ :visibility => params[:trace][:visibility],
+ :inserted => false, :user => @user,
+ :timestamp => Time.now.getutc})
+ @trace.valid?
+ @trace.errors.add(:gpx_file, "can't be blank")
+ end
+ else
+ @trace = Trace.new(:visibility => default_visibility)
+ end
+
+ @title = t 'trace.create.upload_trace'
+ end
+
+ def data
+ trace = Trace.find(params[:id])
+
+ if trace.visible? and (trace.public? or (@user and @user == trace.user))
+ if request.format == Mime::XML
+ send_file(trace.xml_file, :filename => "#{trace.id}.xml", :type => Mime::XML.to_s, :disposition => 'attachment')
+ else
+ send_file(trace.trace_name, :filename => "#{trace.id}#{trace.extension_name}", :type => trace.mime_type, :disposition => 'attachment')
+ end
+ else
+ render :nothing => true, :status => :not_found
+ end
+ rescue ActiveRecord::RecordNotFound
+ render :nothing => true, :status => :not_found
+ end
+
+ def edit
+ @trace = Trace.find(params[:id])
+
+ if @user and @trace.user == @user
+ @title = t 'trace.edit.title', :name => @trace.name
+ if params[:trace]
+ @trace.description = params[:trace][:description]
+ @trace.tagstring = params[:trace][:tagstring]
+ @trace.visibility = params[:trace][:visibility]
+ if @trace.save
+ redirect_to :action => 'view'
+ end
+ end
+ else
+ render :nothing => true, :status => :forbidden
+ end
+ rescue ActiveRecord::RecordNotFound
+ render :nothing => true, :status => :not_found
+ end
+
+ def delete
+ trace = Trace.find(params[:id])
+
+ if @user and trace.user == @user
+ if request.post? and trace.visible?
+ trace.visible = false
+ trace.save
+ flash[:notice] = t 'trace.delete.scheduled_for_deletion'
+ redirect_to :action => :list, :display_name => @user.display_name
+ else
+ render :nothing => true, :status => :bad_request
+ end
+ else
+ render :nothing => true, :status => :forbidden
+ end
+ rescue ActiveRecord::RecordNotFound
+ render :nothing => true, :status => :not_found
+ end
+
+ def georss
+ traces = Trace.public
+
+ if params[:display_name]
+ traces = traces.joins(:user).where(:users => {:display_name => params[:display_name]})
+ end
+
+ if params[:tag]
+ traces = traces.where("EXISTS (SELECT * FROM gpx_file_tags AS gft WHERE gft.gpx_id = gpx_files.id AND gft.tag = ?)")
+ end
+
+ traces = traces.order("timestamp DESC")
+ traces = traces.limit(20)
+ traces = traces.includes(:user)
+
+ rss = OSM::GeoRSS.new
+
+ traces.each do |trace|
+ rss.add(trace.latitude, trace.longitude, trace.name, trace.user.display_name, url_for({:controller => 'trace', :action => 'view', :id => trace.id, :display_name => trace.user.display_name}), "<img src='#{url_for({:controller => 'trace', :action => 'icon', :id => trace.id, :display_name => trace.user.display_name})}'> GPX file with #{trace.size} points from #{trace.user.display_name}", trace.timestamp)
+ end
+
+ render :text => rss.to_s, :content_type => "application/rss+xml"
+ end
+
+ def picture
+ trace = Trace.find(params[:id])
+
+ if trace.inserted?
+ if trace.public? or (@user and @user == trace.user)
+ expires_in 7.days, :private => !trace.public?, :public => trace.public?
+ send_file(trace.large_picture_name, :filename => "#{trace.id}.gif", :type => 'image/gif', :disposition => 'inline')
+ else
+ render :nothing => true, :status => :forbidden
+ end
+ else
+ render :nothing => true, :status => :not_found
+ end
+ rescue ActiveRecord::RecordNotFound
+ render :nothing => true, :status => :not_found
+ end
+
+ def icon
+ trace = Trace.find(params[:id])
+
+ if trace.inserted?
+ if trace.public? or (@user and @user == trace.user)
+ expires_in 7.days, :private => !trace.public?, :public => trace.public?
+ send_file(trace.icon_picture_name, :filename => "#{trace.id}_icon.gif", :type => 'image/gif', :disposition => 'inline')
+ else
+ render :nothing => true, :status => :forbidden
+ end
+ else
+ render :nothing => true, :status => :not_found
+ end
+ rescue ActiveRecord::RecordNotFound
+ render :nothing => true, :status => :not_found
+ end
+
+ def api_read
+ trace = Trace.visible.find(params[:id])
+
+ if trace.public? or trace.user == @user
+ render :text => trace.to_xml.to_s, :content_type => "text/xml"
+ else
+ render :nothing => true, :status => :forbidden
+ end
+ end
+
+ def api_update
+ trace = Trace.visible.find(params[:id])
+
+ if trace.user == @user
+ new_trace = Trace.from_xml(request.raw_post)
+
+ unless new_trace and new_trace.id == trace.id
+ raise OSM::APIBadUserInput.new("The id in the url (#{trace.id}) is not the same as provided in the xml (#{new_trace.id})")
+ end
+
+ trace.description = new_trace.description
+ trace.tags = new_trace.tags
+ trace.visibility = new_trace.visibility
+ trace.save!
+
+ render :nothing => true, :status => :ok
+ else
+ render :nothing => true, :status => :forbidden
+ end
+ end
+
+ def api_delete
+ trace = Trace.visible.find(params[:id])
+
+ if trace.user == @user
+ trace.visible = false
+ trace.save!
+
+ render :nothing => true, :status => :ok
+ else
+ render :nothing => true, :status => :forbidden
+ end
+ end
+
+ def api_data
+ trace = Trace.find(params[:id])
+
+ if trace.public? or trace.user == @user
+ if request.format == Mime::XML
+ send_file(trace.xml_file, :filename => "#{trace.id}.xml", :type => Mime::XML.to_s, :disposition => 'attachment')
+ else
+ send_file(trace.trace_name, :filename => "#{trace.id}#{trace.extension_name}", :type => trace.mime_type, :disposition => 'attachment')
+ end
+ else
+ render :nothing => true, :status => :forbidden
+ end
+ end
+
+ def api_create
+ if request.post?
+ tags = params[:tags] || ""
+ description = params[:description] || ""
+ visibility = params[:visibility]
+
+ if visibility.nil?
+ if params[:public] && params[:public].to_i.nonzero?
+ visibility = "public"
+ else
+ visibility = "private"
+ end
+ end
+
+ if params[:file].respond_to?(:read)
+ do_create(params[:file], tags, description, visibility)
+
+ if @trace.id
+ render :text => @trace.id.to_s, :content_type => "text/plain"
+ elsif @trace.valid?
+ render :nothing => true, :status => :internal_server_error
+ else
+ render :nothing => true, :status => :bad_request
+ end
+ else
+ render :nothing => true, :status => :bad_request
+ end
+ else
+ render :nothing => true, :status => :method_not_allowed
+ end
+ end
+
+private
+
+ def do_create(file, tags, description, visibility)
+ # Sanitise the user's filename
+ name = file.original_filename.gsub(/[^a-zA-Z0-9.]/, '_')
+
+ # Get a temporary filename...
+ filename = "/tmp/#{rand}"
+
+ # ...and save the uploaded file to that location
+ File.open(filename, "w") { |f| f.write(file.read) }
+
+ # Create the trace object, falsely marked as already
+ # inserted to stop the import daemon trying to load it
+ @trace = Trace.new({
+ :name => name,
+ :tagstring => tags,
+ :description => description,
+ :visibility => visibility,
+ :inserted => true,
+ :user => @user,
+ :timestamp => Time.now.getutc
+ })
+
+ Trace.transaction do
+ begin
+ # Save the trace object
+ @trace.save!
+
+ # Rename the temporary file to the final name
+ FileUtils.mv(filename, @trace.trace_name)
+ rescue Exception => ex
+ # Remove the file as we have failed to update the database
+ FileUtils.rm_f(filename)
+
+ # Pass the exception on
+ raise
+ end
+
+ begin
+ # Clear the inserted flag to make the import daemon load the trace
+ @trace.inserted = false
+ @trace.save!
+ rescue Exception => ex
+ # Remove the file as we have failed to update the database
+ FileUtils.rm_f(@trace.trace_name)
+
+ # Pass the exception on
+ raise
+ end
+ end
+
+ # Finally save the user's preferred privacy level
+ if pref = @user.preferences.where(:k => "gps.trace.visibility").first
+ pref.v = visibility
+ pref.save
+ else
+ @user.preferences.create(:k => "gps.trace.visibility", :v => visibility)
+ end
+
+ end
+
+ def offline_warning
+ flash.now[:warning] = t 'trace.offline_warning.message' if STATUS == :gpx_offline
+ end
+
+ def offline_redirect
+ redirect_to :action => :offline if STATUS == :gpx_offline
+ end
+
+ def default_visibility
+ visibility = @user.preferences.where(:k => "gps.trace.visibility").first
+
+ if visibility
+ visibility.v
+ elsif @user.preferences.where(:k => "gps.trace.public", :v => "default").first.nil?
+ "private"
+ else
+ "public"
+ end
+ end
+
end
projects / rails.git / blobdiff