X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/dd1f94e3414d1cbea71706dcb0e3a418db208efd..c53896e4539ed81e084057d51fce6968efd68286:/app/controllers/trace_controller.rb

diff --git a/app/controllers/trace_controller.rb b/app/controllers/trace_controller.rb
index 3448b43ac..2cd3117dd 100644
--- a/app/controllers/trace_controller.rb
+++ b/app/controllers/trace_controller.rb
@@ -1,56 +1,455 @@
 class TraceController < ApplicationController
-  before_filter :authorize_web  
   layout 'site'
 
+  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], :unless => STATUS == :database_offline
+  cache_sweeper :tracetag_sweeper, :only => [:create, :edit, :delete, :api_create, :api_update, :api_delete], :unless => STATUS == :database_offline
+
+  # 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
-    @traces = Trace.find(:all, :conditions => ['public = true'])
+    # 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.find(:first, :conditions => { :status => ["active", "confirmed"], :display_name => display_name })
+      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
+        conditions = ["(gpx_files.visibility in ('public', 'identifiable') OR gpx_files.user_id = ?)", @user.id] #1
+      else
+        conditions  = ["gpx_files.visibility in ('public', 'identifiable')"] #2
+      end
+    else
+      if @user and @user == target_user
+        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)
+      else
+        conditions = ["gpx_files.visibility in ('public', 'identifiable') AND gpx_files.user_id = ?", target_user.id] #4
+      end
+    end
+
+    if params[:tag]
+      @tag = params[:tag]
+
+      files = Tracetag.find_all_by_tag(params[:tag]).collect { |tt| tt.gpx_id }
+
+      if files.length > 0
+        conditions[0] += " AND gpx_files.id IN (#{files.join(',')})"
+      else
+        conditions[0] += " AND 0 = 1"
+      end
+    end
+
+    conditions[0] += " AND gpx_files.visible = ?"
+    conditions << true
+
+    @page = (params[:page] || 1).to_i
+    @page_size = 20
+
+    @traces = Trace.find(:all,
+                         :include => [:user, :tags],
+                         :conditions => conditions,
+                         :order => "gpx_files.timestamp DESC",
+                         :offset => (@page - 1) * @page_size,
+                         :limit => @page_size)
+
+    # put together SET of tags across traces, for related links
+    tagset = Hash.new
+    if @traces
+      @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
+    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
-    @traces = Trace.find(:all, :conditions => ['user_id = ?', @user.id])
+    redirect_to :action => :list, :display_name => @user.display_name
   end
 
   def view
     @trace = Trace.find(params[:id])
-    unless @trace.public
-      if @user
-        render :nothing, :status => 401 if @trace.user.id != @user.id
-      end
+
+    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
-    filename = "/tmp/#{rand}"
+    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
 
-    File.open(filename, "w") { |f| f.write(@params['trace']['gpx_file'].read) }
-    @params['trace']['name'] = @params['trace']['gpx_file'].original_filename.gsub(/[^a-zA-Z0-9.]/, '_') # This makes sure filenames are sane
-    @params['trace'].delete('gpx_file') # let's remove the field from the hash, because there's no such field in the DB anyway.
-    @trace = Trace.new(@params['trace'])
-    @trace.inserted = false
-    @trace.user_id = @user.id
-    @trace.timestamp = Time.now
-    if @trace.save
-      logger.info("id is #{@trace.id}")
-      `mv #{filename} /tmp/#{@trace.id}.gpx`
-      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."
+          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
 
-    redirect_to :action => 'mine'
+  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.find(:all, :conditions => ['public = true'], :order => 'timestamp DESC', :limit => 20)
+    conditions = ["gpx_files.visibility in ('public', 'identifiable')"]
+
+    if params[:display_name]
+      conditions[0] += " AND users.display_name = ?"
+      conditions << params[:display_name]
+    end
+
+    if params[:tag]
+      conditions[0] += " AND EXISTS (SELECT * FROM gpx_file_tags AS gft WHERE gft.gpx_id = gpx_files.id AND gft.tag = ?)"
+      conditions << params[:tag]
+    end
 
+    traces = Trace.find(:all, :include => :user, :conditions => conditions,
+                        :order => "timestamp DESC", :limit => 20)
 
+    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])
-    send_data(trace.large_picture, :filename => "#{trace.id}.gif", :type => 'image/png', :disposition => 'inline') if trace.public
+
+    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])
-    send_data(trace.icon_picture, :filename => "#{trace.id}.gif", :type => 'image/gif', :disposition => 'inline') if trace.public
+
+    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.find(params[:id], :conditions => { :visible => true })
+
+    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.find(params[:id], :conditions => { :visible => true })
+
+    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.find(params[:id], :conditions => { :visible => true })
+
+    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.find(:first, :conditions => {:k => "gps.trace.visibility"})
+      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.find(:first, :conditions => {:k => "gps.trace.visibility"})
+
+    if visibility
+      visibility.v
+    elsif @user.preferences.find(:first, :conditions => {:k => "gps.trace.public", :v => "default"}).nil?
+      "private"
+    else
+      "public"
+    end
+  end
+
 end