1 class TraceController < ApplicationController
4 before_filter :authorize_web
5 before_filter :set_locale
6 before_filter :require_user, :only => [:mine, :create, :edit, :delete]
7 before_filter :authorize, :only => [:api_details, :api_data, :api_create]
8 before_filter :check_database_readable, :except => [:api_details, :api_data, :api_create]
9 before_filter :check_database_writable, :only => [:create, :edit, :delete]
10 before_filter :check_api_readable, :only => [:api_details, :api_data]
11 before_filter :check_api_writable, :only => [:api_create]
13 # Counts and selects pages of GPX traces for various criteria (by user, tags, public etc.).
14 # target_user - if set, specifies the user to fetch traces for. if not set will fetch all traces
15 def list(target_user = nil, action = "list")
16 # from display name, pick up user id if one user's traces only
17 display_name = params[:display_name]
18 if target_user.nil? and !display_name.blank?
19 target_user = User.find(:first, :conditions => [ "visible = ? and display_name = ?", true, display_name])
21 @title = t'trace.no_such_user.title'
22 @not_found_user = display_name
23 render :action => 'no_such_user', :status => :not_found
30 @title = t 'trace.list.public_traces'
31 elsif @user and @user == target_user
32 @title = t 'trace.list.your_traces'
34 @title = t 'trace.list.public_traces_from', :user => target_user.display_name
37 @title += t 'trace.list.tagged_with', :tags => params[:tag] if params[:tag]
40 # 1 - all traces, logged in = all public traces + all user's (i.e + all mine)
41 # 2 - all traces, not logged in = all public traces
42 # 3 - user's traces, logged in as same user = all user's traces
43 # 4 - user's traces, not logged in as that user = all user's public traces
44 if target_user.nil? # all traces
46 conditions = ["(gpx_files.visibility <> 'private' OR gpx_files.user_id = ?)", @user.id] #1
48 conditions = ["gpx_files.visibility <> 'private'"] #2
51 if @user and @user == target_user
52 conditions = ["gpx_files.user_id = ?", @user.id] #3 (check vs user id, so no join + can't pick up non-public traces by changing name)
54 conditions = ["gpx_files.public <> 'private' AND gpx_files.user_id = ?", target_user.id] #4
61 files = Tracetag.find_all_by_tag(params[:tag]).collect { |tt| tt.gpx_id }
64 conditions[0] += " AND gpx_files.id IN (#{files.join(',')})"
66 conditions[0] += " AND 0 = 1"
70 conditions[0] += " AND gpx_files.visible = ?"
73 @trace_pages, @traces = paginate(:traces,
74 :include => [:user, :tags],
75 :conditions => conditions,
76 :order => "gpx_files.timestamp DESC",
79 # put together SET of tags across traces, for related links
82 @traces.each do |trace|
83 trace.tags.reload if params[:tag] # if searched by tag, ActiveRecord won't bring back other tags, so do explicitly here
84 trace.tags.each do |tag|
85 tagset[tag.tag] = tag.tag
90 # final helper vars for view
92 @display_name = target_user.display_name if target_user
93 @all_tags = tagset.values
97 # Load the preference of whether the user set the trace public the last time
99 visibility = @user.preferences.find(:first, :conditions => {:k => "gps.trace.visibility"})
101 @trace.visibility = visibility.v
102 elsif @user.preferences.find(:first, :conditions => {:k => "gps.trace.public", :v => "default"}).nil?
103 @trace.visibility = "private"
105 @trace.visibility = "public"
111 @trace = Trace.find(params[:id])
113 if @trace and @trace.visible? and
114 (@trace.public? or @trace.user == @user)
115 @title = t 'trace.view.title', :name => @trace.name
117 flash[:notice] = t 'trace.view.trace_not_found'
118 redirect_to :controller => 'trace', :action => 'list'
120 rescue ActiveRecord::RecordNotFound
121 flash[:notice] = t 'trace.view.trace_not_found'
122 redirect_to :controller => 'trace', :action => 'list'
127 logger.info(params[:trace][:gpx_file].class.name)
128 if params[:trace][:gpx_file].respond_to?(:read)
129 do_create(params[:trace][:gpx_file], params[:trace][:tagstring],
130 params[:trace][:description], params[:trace][:visibility])
133 logger.info("id is #{@trace.id}")
134 flash[:notice] = t 'trace.create.trace_uploaded'
136 redirect_to :action => 'mine'
139 @trace = Trace.new({:name => "Dummy",
140 :tagstring => params[:trace][:tagstring],
141 :description => params[:trace][:description],
142 :visibility => params[:trace][:visibility],
143 :inserted => false, :user => @user,
144 :timestamp => Time.now.getutc})
146 @trace.errors.add(:gpx_file, "can't be blank")
149 @title = t 'trace.create.upload_trace'
153 trace = Trace.find(params[:id])
155 if trace.visible? and (trace.public? or (@user and @user == trace.user))
156 if request.format == Mime::XML
157 send_file(trace.xml_file, :filename => "#{trace.id}.xml", :type => Mime::XML.to_s, :disposition => 'attachment')
159 send_file(trace.trace_name, :filename => "#{trace.id}#{trace.extension_name}", :type => trace.mime_type, :disposition => 'attachment')
162 render :nothing => true, :status => :not_found
164 rescue ActiveRecord::RecordNotFound
165 render :nothing => true, :status => :not_found
169 @trace = Trace.find(params[:id])
171 if @user and @trace.user == @user
172 @title = t 'trace.edit.title', :name => @trace.name
174 @trace.description = params[:trace][:description]
175 @trace.tagstring = params[:trace][:tagstring]
176 @trace.visibility = params[:trace][:visibility]
178 redirect_to :action => 'view'
182 render :nothing => true, :status => :forbidden
184 rescue ActiveRecord::RecordNotFound
185 render :nothing => true, :status => :not_found
189 trace = Trace.find(params[:id])
191 if @user and trace.user == @user
192 if request.post? and trace.visible?
193 trace.visible = false
195 flash[:notice] = t 'trace.delete.scheduled_for_deletion'
196 redirect_to :controller => 'traces', :action => 'mine'
198 render :nothing => true, :status => :bad_request
201 render :nothing => true, :status => :forbidden
203 rescue ActiveRecord::RecordNotFound
204 render :nothing => true, :status => :not_found
208 conditions = ["gpx_files.visibility <> 'private'"]
210 if params[:display_name]
211 conditions[0] += " AND users.display_name = ?"
212 conditions << params[:display_name]
216 conditions[0] += " AND EXISTS (SELECT * FROM gpx_file_tags AS gft WHERE gft.gpx_id = gpx_files.id AND gft.tag = ?)"
217 conditions << params[:tag]
220 traces = Trace.find(:all, :include => :user, :conditions => conditions,
221 :order => "timestamp DESC", :limit => 20)
223 rss = OSM::GeoRSS.new
225 traces.each do |trace|
226 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, :user_login => trace.user.display_name})}'> GPX file with #{trace.size} points from #{trace.user.display_name}", trace.timestamp)
229 render :text => rss.to_s, :content_type => "application/rss+xml"
233 trace = Trace.find(params[:id])
236 if trace.public? or (@user and @user == trace.user)
237 expires_in 7.days, :private => !trace.public?, :public => trace.public?
238 send_file(trace.large_picture_name, :filename => "#{trace.id}.gif", :type => 'image/gif', :disposition => 'inline')
240 render :nothing => true, :status => :forbidden
243 render :nothing => true, :status => :not_found
245 rescue ActiveRecord::RecordNotFound
246 render :nothing => true, :status => :not_found
250 trace = Trace.find(params[:id])
253 if trace.public? or (@user and @user == trace.user)
254 expires_in 7.days, :private => !trace.public?, :public => trace.public?
255 send_file(trace.icon_picture_name, :filename => "#{trace.id}_icon.gif", :type => 'image/gif', :disposition => 'inline')
257 render :nothing => true, :status => :forbidden
260 render :nothing => true, :status => :not_found
262 rescue ActiveRecord::RecordNotFound
263 render :nothing => true, :status => :not_found
267 trace = Trace.find(params[:id])
269 if trace.public? or trace.user == @user
270 render :text => trace.to_xml.to_s, :content_type => "text/xml"
272 render :nothing => true, :status => :forbidden
274 rescue ActiveRecord::RecordNotFound
275 render :nothing => true, :status => :not_found
279 trace = Trace.find(params[:id])
281 if trace.public? or trace.user == @user
282 send_file(trace.trace_name, :filename => "#{trace.id}#{trace.extension_name}", :type => trace.mime_type, :disposition => 'attachment')
284 render :nothing => true, :status => :forbidden
286 rescue ActiveRecord::RecordNotFound
287 render :nothing => true, :status => :not_found
292 tags = params[:tags] || ""
293 description = params[:description] || ""
294 visibility = params[:visibility] || false
296 if params[:public] && !visibility
297 visibility = "public"
300 if params[:file].respond_to?(:read)
301 do_create(params[:file], tags, description, visibility)
304 render :text => @trace.id.to_s, :content_type => "text/plain"
306 render :nothing => true, :status => :internal_server_error
308 render :nothing => true, :status => :bad_request
311 render :nothing => true, :status => :bad_request
314 render :nothing => true, :status => :method_not_allowed
320 def do_create(file, tags, description, visibility)
321 # Sanitise the user's filename
322 name = file.original_filename.gsub(/[^a-zA-Z0-9.]/, '_')
324 # Get a temporary filename...
325 filename = "/tmp/#{rand}"
327 # ...and save the uploaded file to that location
328 File.open(filename, "w") { |f| f.write(file.read) }
330 # Create the trace object, falsely marked as already
331 # inserted to stop the import daemon trying to load it
335 :description => description,
336 :visibility => visibility,
339 :timestamp => Time.now.getutc
342 # Save the trace object
344 # Rename the temporary file to the final name
345 FileUtils.mv(filename, @trace.trace_name)
347 # Clear the inserted flag to make the import daemon load the trace
348 @trace.inserted = false
351 # Remove the file as we have failed to update the database
352 FileUtils.rm_f(filename)
355 # Finally save the user's preferred previacy level
356 if pref = @user.preferences.find(:first, :conditions => {:k => "gps.trace.visibility"})
360 @user.preferences.create(:k => "gps.trace.visibility", :v => visibility)