+# == 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)
+#
+
+class Trace < ApplicationRecord
+ require "open3"
+
+ 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 }) }
+
+ 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(attachable)
+ 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)
+
+ 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
+
+ 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
projects / rails.git / blobdiff