X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/8ef8761fa52de493c01403211fd3a4481ba759ac..e3c919275818d46a515c183cf373d7a53bc6942a:/app/models/trace.rb?ds=inline

diff --git a/app/models/trace.rb b/app/models/trace.rb
index 451067b21..20723b98d 100644
--- a/app/models/trace.rb
+++ b/app/models/trace.rb
@@ -1,9 +1,296 @@
-class Trace < ActiveRecord::Base
-  set_table_name 'gpx_files'
+# == Schema Information
+#
+# Table name: gpx_files
+#
+#  id          :bigint(8)        not null, primary key
+#  user_id     :bigint(8)        not null
+#  visible     :boolean          default(TRUE), not null
+#  name        :string           default(""), not null
+#  size        :bigint(8)
+#  latitude    :float
+#  longitude   :float
+#  timestamp   :datetime         not null
+#  description :string           default(""), not null
+#  inserted    :boolean          not null
+#  visibility  :enum             default("public"), not null
+#
+# Indexes
+#
+#  gpx_files_timestamp_idx           (timestamp)
+#  gpx_files_user_id_idx             (user_id)
+#  gpx_files_visible_visibility_idx  (visible,visibility)
+#
+# Foreign Keys
+#
+#  gpx_files_user_id_fkey  (user_id => users.id)
+#
 
-  belongs_to :user
+class Trace < ApplicationRecord
+  require "open3"
 
-  def tags=(bleh)
+  self.table_name = "gpx_files"
 
+  belongs_to :user, :counter_cache => true
+  has_many :tags, :class_name => "Tracetag", :foreign_key => "gpx_id", :dependent => :delete_all, :inverse_of => :trace
+  has_many :points, :class_name => "Tracepoint", :foreign_key => "gpx_id", :dependent => :delete_all, :inverse_of => :trace
+
+  scope :visible, -> { where(:visible => true) }
+  scope :visible_to, ->(u) { visible.where(:visibility => %w[public identifiable]).or(visible.where(:user => u)) }
+  scope :visible_to_all, -> { where(:visibility => %w[public identifiable]) }
+  scope :tagged, ->(t) { joins(:tags).where(:gpx_file_tags => { :tag => t }) }
+  scope :imported, -> { where(:inserted => true) }
+
+  has_one_attached :file, :service => Settings.trace_file_storage
+  has_one_attached :image, :service => Settings.trace_image_storage
+  has_one_attached :icon, :service => Settings.trace_icon_storage
+
+  validates :user, :associated => true
+  validates :name, :presence => true, :length => 1..255, :characters => true
+  validates :description, :presence => { :on => :create }, :length => 1..255, :characters => true
+  validates :timestamp, :presence => true
+  validates :visibility, :inclusion => %w[private public trackable identifiable]
+
+  after_save :set_filename
+
+  def tagstring
+    tags.collect(&:tag).join(", ")
+  end
+
+  def tagstring=(s)
+    self.tags = if s.include? ","
+                  s.split(",").map(&:strip).reject(&:empty?).collect do |tag|
+                    tt = Tracetag.new
+                    tt.tag = tag
+                    tt
+                  end
+                else
+                  # do as before for backwards compatibility:
+                  s.split.collect do |tag|
+                    tt = Tracetag.new
+                    tt.tag = tag
+                    tt
+                  end
+                end
+  end
+
+  def file=(attachable)
+    case attachable
+    when ActionDispatch::Http::UploadedFile, Rack::Test::UploadedFile
+      super(:io => attachable,
+            :filename => attachable.original_filename,
+            :content_type => content_type(attachable.path),
+            :identify => false)
+    else
+      super
+    end
+  end
+
+  def public?
+    visibility == "public" || visibility == "identifiable"
+  end
+
+  def trackable?
+    visibility == "trackable" || visibility == "identifiable"
+  end
+
+  def identifiable?
+    visibility == "identifiable"
+  end
+
+  def large_picture
+    image.blob.download
+  end
+
+  def icon_picture
+    icon.blob.download
+  end
+
+  def mime_type
+    file.content_type
+  end
+
+  def extension_name
+    case mime_type
+    when "application/x-tar+gzip" then ".tar.gz"
+    when "application/x-tar+x-bzip2" then ".tar.bz2"
+    when "application/x-tar" then ".tar"
+    when "application/zip" then ".zip"
+    when "application/gzip" then ".gpx.gz"
+    when "application/x-bzip2" then ".gpx.bz2"
+    else ".gpx"
+    end
+  end
+
+  def update_from_xml(xml, create: false)
+    p = XML::Parser.string(xml, :options => XML::Parser::Options::NOERROR)
+    doc = p.parse
+    pt = doc.find_first("//osm/gpx_file")
+
+    if pt
+      update_from_xml_node(pt, :create => create)
+    else
+      raise OSM::APIBadXMLError.new("trace", xml, "XML doesn't contain an osm/gpx_file element.")
+    end
+  rescue LibXML::XML::Error, ArgumentError => e
+    raise OSM::APIBadXMLError.new("trace", xml, e.message)
+  end
+
+  def update_from_xml_node(pt, create: false)
+    raise OSM::APIBadXMLError.new("trace", pt, "visibility missing") if pt["visibility"].nil?
+
+    self.visibility = pt["visibility"]
+
+    unless create
+      raise OSM::APIBadXMLError.new("trace", pt, "ID is required when updating.") if pt["id"].nil?
+
+      id = pt["id"].to_i
+      # .to_i will return 0 if there is no number that can be parsed.
+      # We want to make sure that there is no id with zero anyway
+      raise OSM::APIBadUserInput, "ID of trace cannot be zero when updating." if id.zero?
+      raise OSM::APIBadUserInput, "The id in the url (#{self.id}) is not the same as provided in the xml (#{id})" unless self.id == id
+    end
+
+    # We don't care about the time, as it is explicitly set on create/update/delete
+    # We don't care about the visibility as it is implicit based on the action
+    # and set manually before the actual delete
+    self.visible = true
+
+    description = pt.find("description").first
+    raise OSM::APIBadXMLError.new("trace", pt, "description missing") if description.nil?
+
+    self.description = description.content
+
+    self.tags = pt.find("tag").collect do |tag|
+      Tracetag.new(:tag => tag.content)
+    end
+  end
+
+  def xml_file
+    file.open do |tracefile|
+      filetype = Open3.capture2("/usr/bin/file", "-Lbz", tracefile.path).first.chomp
+      gzipped = filetype.include?("gzip compressed")
+      bzipped = filetype.include?("bzip2 compressed")
+      zipped = filetype.include?("Zip archive")
+      tarred = filetype.include?("tar archive")
+
+      if gzipped || bzipped || zipped || tarred
+        file = Tempfile.new("trace.#{id}")
+
+        if tarred && gzipped
+          system("tar", "-zxOf", tracefile.path, :out => file.path)
+        elsif tarred && bzipped
+          system("tar", "-jxOf", tracefile.path, :out => file.path)
+        elsif tarred
+          system("tar", "-xOf", tracefile.path, :out => file.path)
+        elsif gzipped
+          system("gunzip", "-c", tracefile.path, :out => file.path)
+        elsif bzipped
+          system("bunzip2", "-c", tracefile.path, :out => file.path)
+        elsif zipped
+          system("unzip", "-p", tracefile.path, "-x", "__MACOSX/*", :out => file.path, :err => "/dev/null")
+        end
+
+        file.unlink
+      else
+        file = File.open(tracefile.path)
+      end
+
+      file
+    end
+  end
+
+  def import
+    logger.info("GPX Import importing #{name} (#{id}) from #{user.email}")
+
+    file.open do |file|
+      gpx = GPX::File.new(file.path, :maximum_points => Settings.max_trace_size)
+
+      f_lat = 0
+      f_lon = 0
+      first = true
+
+      # If there are any existing points for this trace then delete them
+      Tracepoint.where(:trace => id).delete_all
+
+      gpx.points.each_slice(1_000) do |points|
+        # Gather the trace points together for a bulk import
+        tracepoints = []
+
+        points.each do |point|
+          if first
+            f_lat = point.latitude
+            f_lon = point.longitude
+            first = false
+          end
+
+          tp = Tracepoint.new
+          tp.lat = point.latitude
+          tp.lon = point.longitude
+          tp.altitude = point.altitude
+          tp.timestamp = point.timestamp
+          tp.gpx_id = id
+          tp.trackid = point.segment
+          tracepoints << tp
+        end
+
+        # Run the before_save and before_create callbacks, and then import them in bulk with activerecord-import
+        tracepoints.each do |tp|
+          tp.run_callbacks(:save) { false }
+          tp.run_callbacks(:create) { false }
+        end
+
+        Tracepoint.import!(tracepoints)
+      end
+
+      if gpx.actual_points.positive?
+        max_lat = Tracepoint.where(:trace => id).maximum(:latitude)
+        min_lat = Tracepoint.where(:trace => id).minimum(:latitude)
+        max_lon = Tracepoint.where(:trace => id).maximum(:longitude)
+        min_lon = Tracepoint.where(:trace => id).minimum(:longitude)
+
+        max_lat = max_lat.to_f / 10000000
+        min_lat = min_lat.to_f / 10000000
+        max_lon = max_lon.to_f / 10000000
+        min_lon = min_lon.to_f / 10000000
+
+        self.latitude = f_lat
+        self.longitude = f_lon
+        image.attach(:io => gpx.picture(min_lat, min_lon, max_lat, max_lon, gpx.actual_points), :filename => "#{id}.gif", :content_type => "image/gif")
+        icon.attach(:io => gpx.icon(min_lat, min_lon, max_lat, max_lon), :filename => "#{id}_icon.gif", :content_type => "image/gif")
+        self.size = gpx.actual_points
+        self.inserted = true
+        save!
+      end
+
+      logger.info "done trace #{id}"
+
+      gpx
+    end
+  end
+
+  def schedule_import
+    TraceImporterJob.new(self).enqueue(:priority => user.traces.where(:inserted => false).count)
+  end
+
+  def schedule_destruction
+    TraceDestroyerJob.perform_later(self)
+  end
+
+  private
+
+  def content_type(file)
+    case Open3.capture2("/usr/bin/file", "-Lbz", file).first.chomp
+    when /.*\btar archive\b.*\bgzip\b/ then "application/x-tar+gzip"
+    when /.*\btar archive\b.*\bbzip2\b/ then "application/x-tar+x-bzip2"
+    when /.*\btar archive\b/ then "application/x-tar"
+    when /.*\bZip archive\b/ then "application/zip"
+    when /.*\bXML\b.*\bgzip\b/ then "application/gzip"
+    when /.*\bXML\b.*\bbzip2\b/ then "application/x-bzip2"
+    else "application/gpx+xml"
+    end
+  end
+
+  def set_filename
+    file.blob.update(:filename => "#{id}#{extension_name}") if file.attached?
   end
 end