1 class TraceController < ApplicationController
2 before_filter :authorize_web
3 before_filter :authorize, :only => [:api_details, :api_data, :api_create]
6 # Counts and selects pages of GPX traces for various criteria (by user, tags, public etc.).
7 # target_user - if set, specifies the user to fetch traces for. if not set will fetch all traces
8 # paging_action - the action that will be linked back to from view
9 def list (target_user = nil, paging_action = 'list')
10 @title = 'public GPS traces'
11 @title += " tagged with #{params[:tag]}" if params[:tag]
12 page_index = params[:page] ? params[:page].to_i - 1 : 0 # nice 1-based page -> 0-based page index
14 # from display name, pick up user id if one user's traces only
15 display_name = params[:display_name]
16 if target_user.nil? and display_name and display_name != ''
17 @paging_action = 'view'
18 @display_name = display_name
19 @title += " from #{@display_name}"
20 target_user = User.find(:first, :conditions => [ "display_name = ?", display_name])
24 opt[:include] = [:user, :tags] # load users and tags from db at same time as traces
27 # 1 - all traces, logged in = all public traces + all user's (i.e + all mine)
28 # 2 - all traces, not logged in = all public traces
29 # 3 - user's traces, logged in as same user = all user's traces
30 # 4 - user's traces, not logged in as that user = all user's public traces
31 if target_user.nil? # all traces
33 conditions = ["(public = 1 OR user_id = ?)", @user.id] #1
35 conditions = ["public = 1"] #2
38 if @user and @user.id == target_user.id
39 conditions = ["user_id = ?", @user.id] #3 (check vs user id, so no join + can't pick up non-public traces by changing name)
41 conditions = ["public = 1 AND user_id = ?", target_user.id] #4
44 conditions[0] += " AND users.display_name != ''" # users need to set display name before traces will be exposed
46 opt[:order] = 'timestamp DESC'
49 conditions[0] += " AND gpx_file_tags.tag = ?"
53 opt[:conditions] = conditions
56 @trace_pages, @traces = paginate(:traces, opt)
58 # put together SET of tags across traces, for related links
61 @traces.each do |trace|
62 trace.tags.reload if params[:tag] # if searched by tag, ActiveRecord won't bring back other tags, so do explicitly here
63 trace.tags.each do |tag|
64 tagset[tag.tag] = tag.tag
69 # final helper vars for view
70 @display_name = display_name
71 @all_tags = tagset.values
72 ## @paging_action = paging_action # the action that paging requests should route back to, e.g. 'list' or 'mine'
73 ## @page = page_index + 1 # nice 1-based external page numbers
78 list(@user, 'mine') unless @user.nil?
80 redirect_to :controller => 'user', :action => 'login', :referer => request.request_uri
85 @trace = Trace.find(params[:id])
88 render :nothing, :status => :forbidden if @trace.user.id != @user.id
94 name = params[:trace][:gpx_file].original_filename.gsub(/[^a-zA-Z0-9.]/, '_') # This makes sure filenames are sane
96 do_create(name, params[:trace][:tagstring], params[:trace][:description], params[:trace][:public]) do |f|
97 f.write(params[:trace][:gpx_file].read)
101 logger.info("id is #{@trace.id}")
102 flash[:notice] = "Your GPX file has been uploaded and is awaiting insertion in to the database. This will usually happen within half an hour, and an email will be sent to you on completion."
104 redirect_to :action => 'mine'
109 trace = Trace.find(params[:id])
110 if trace and (trace.public? or (@user and @user == trace.user))
111 send_file(trace.trace_name, :filename => "#{trace.id}#{trace.extension_name}", :type => trace.mime_type, :disposition => 'attachment')
113 render :nothing, :status => :not_found
118 trace = Trace.find(params[:id])
119 if @user and trace.user == @user and !trace.public
122 flash[:notice] = 'Track made public'
123 redirect_to :controller => 'trace', :action => 'view', :id => params[:id]
128 traces = Trace.find(:all, :conditions => ['public = true'], :order => 'timestamp DESC', :limit => 20)
130 rss = OSM::GeoRSS.new
132 #def add(latitude=0, longitude=0, title_text='dummy title', url='http://www.example.com/', description_text='dummy description', timestamp=Time.now)
133 traces.each do |trace|
134 rss.add(trace.latitude, trace.longitude, trace.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, :user_login => trace.user.display_name})}'> GPX file with #{trace.size} points from #{trace.user.display_name}", trace.timestamp)
137 render :text => rss.to_s, :content_type => "application/rss+xml"
142 trace = Trace.find(params[:id])
144 if trace.public? or (@user and @user == trace.user)
145 send_file(trace.large_picture_name, :filename => "#{trace.id}.gif", :type => 'image/gif', :disposition => 'inline')
147 render :nothing, :status => :forbidden
149 rescue ActiveRecord::RecordNotFound
150 render :nothing => true, :status => :not_found
152 render :nothing => true, :status => :internal_server_error
158 trace = Trace.find(params[:id])
160 if trace.public? or (@user and @user == trace.user)
161 send_file(trace.icon_picture_name, :filename => "#{trace.id}_icon.gif", :type => 'image/gif', :disposition => 'inline')
163 render :nothing, :status => :forbidden
165 rescue ActiveRecord::RecordNotFound
166 render :nothing => true, :status => :not_found
168 render :nothing => true, :status => :internal_server_error
174 trace = Trace.find(params[:id])
176 if trace.public? or trace.user == @user
177 render :text => trace.to_xml.to_s, :content_type => "text/xml"
179 render :nothing => true, :status => :forbidden
181 rescue ActiveRecord::RecordNotFound
182 render :nothing => true, :status => :not_found
184 render :nothing => true, :status => :internal_server_error
189 render :action => 'data'
193 do_create(params[:filename], params[:tags], params[:description], true) do |f|
194 f.write(request.raw_post)
198 render :nothing => true
200 render :nothing => true, :status => :internal_server_error
206 def do_create(name, tags, description, public)
207 filename = "/tmp/#{rand}"
209 File.open(filename, "w") { |f| yield f }
211 @trace = Trace.new({:name => name, :tagstring => tags,
212 :description => description, :public => public})
213 @trace.inserted = false
215 @trace.timestamp = Time.now
218 File.rename(filename, @trace.trace_name)
220 FileUtils.rm_f(filename)