Merge pull request #3104 from fredrik-lindseth/patch-1

[rails.git] / app / models / trace.rb

diff --git a/app/models/trace.rb b/app/models/trace.rb
index aefe78b6000e5a2ab3e198cef3887e9ad0342945..0860d2b31954e1a3d255594650b071443399f702 100644 (file)
--- a/app/models/trace.rb
+++ b/app/models/trace.rb
@@ -1,28 +1,92 @@
-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)
+#

 
 

-  validates_presence_of :user_id, :name, :public, :description, :tmpname, :timestamp
-  validates_numericality_of :latitude, :longitude
-  validates_inclusion_of :inserted, :in => [ true, false]
-  
-  belongs_to :user
-  has_many :tags, :class_name => 'Tracetag', :foreign_key => 'gpx_id', :dependent => :destroy
+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
+  has_many :points, :class_name => "Tracepoint", :foreign_key => "gpx_id", :dependent => :delete_all
+
+  scope :visible, -> { where(:visible => true) }
+  scope :visible_to, ->(u) { visible.where("visibility IN ('public', 'identifiable') OR user_id = ?", u) }
+  scope :visible_to_all, -> { where(:visibility => %w[public identifiable]) }
+  scope :tagged, ->(t) { joins(:tags).where(:gpx_file_tags => { :tag => t }) }
+
+  validates :user, :presence => true, :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_destroy :remove_files
+
+  def tagstring
+    tags.collect(&:tag).join(", ")
+  end

 
   def tagstring=(s)
 
   def tagstring=(s)

-    self.tags = s.split().collect {|tag|
-      tt = Tracetag.new
-      tt.tag = tag
-      tt
-    }
-  end
-  
-  def large_picture= (data)
+    self.tags = if s.include? ","
+                  s.split(/\s*,\s*/).reject { |tag| tag =~ /^\s*$/ }.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 public?
+    visibility == "public" || visibility == "identifiable"
+  end
+
+  def trackable?
+    visibility == "trackable" || visibility == "identifiable"
+  end
+
+  def identifiable?
+    visibility == "identifiable"
+  end
+
+  def large_picture=(data)

     f = File.new(large_picture_name, "wb")
     f.syswrite(data)
     f.close
   end
     f = File.new(large_picture_name, "wb")
     f.syswrite(data)
     f.close
   end

-  
-  def icon_picture= (data)
+
+  def icon_picture=(data)

     f = File.new(icon_picture_name, "wb")
     f.syswrite(data)
     f.close
     f = File.new(icon_picture_name, "wb")
     f.syswrite(data)
     f.close


@@ -30,28 +94,222 @@ class Trace < ActiveRecord::Base
 
   def large_picture
     f = File.new(large_picture_name, "rb")
 
   def large_picture
     f = File.new(large_picture_name, "rb")

-    logger.info "large picture file: '#{f.path}', bytes: #{File.size(f.path)}"

     data = f.sysread(File.size(f.path))
     data = f.sysread(File.size(f.path))

-    logger.info "have read data, bytes: '#{data.length}'"

     f.close
     data
   end
     f.close
     data
   end

-  
+

   def icon_picture
     f = File.new(icon_picture_name, "rb")
   def icon_picture
     f = File.new(icon_picture_name, "rb")

-    logger.info "icon picture file: '#{f.path}'"

     data = f.sysread(File.size(f.path))
     f.close
     data
   end
     data = f.sysread(File.size(f.path))
     f.close
     data
   end

-  
-  # FIXME change to permanent filestore area
+

   def large_picture_name
   def large_picture_name

-    "/tmp/#{id}.gif"
+    "#{Settings.gpx_image_dir}/#{id}.gif"

   end
 
   end
 

-  # FIXME change to permanent filestore area

   def icon_picture_name
   def icon_picture_name

-    "/tmp/#{id}_icon.gif"
+    "#{Settings.gpx_image_dir}/#{id}_icon.gif"
+  end
+
+  def trace_name
+    "#{Settings.gpx_trace_dir}/#{id}.gpx"
+  end
+
+  def mime_type
+    filetype = Open3.capture2("/usr/bin/file", "-Lbz", trace_name).first.chomp
+    gzipped = filetype.include?("gzip compressed")
+    bzipped = filetype.include?("bzip2 compressed")
+    zipped = filetype.include?("Zip archive")
+    tarred = filetype.include?("tar archive")
+
+    if gzipped
+      "application/x-gzip"
+    elsif bzipped
+      "application/x-bzip2"
+    elsif zipped
+      "application/x-zip"
+    elsif tarred
+      "application/x-tar"
+    else
+      "application/gpx+xml"
+    end
+  end
+
+  def extension_name
+    filetype = Open3.capture2("/usr/bin/file", "-Lbz", trace_name).first.chomp
+    gzipped = filetype.include?("gzip compressed")
+    bzipped = filetype.include?("bzip2 compressed")
+    zipped = filetype.include?("Zip archive")
+    tarred = filetype.include?("tar archive")
+
+    if tarred && gzipped
+      ".tar.gz"
+    elsif tarred && bzipped
+      ".tar.bz2"
+    elsif tarred
+      ".tar"
+    elsif gzipped
+      ".gpx.gz"
+    elsif bzipped
+      ".gpx.bz2"
+    elsif zipped
+      ".zip"
+    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
+    filetype = Open3.capture2("/usr/bin/file", "-Lbz", trace_name).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", trace_name, :out => file.path)
+      elsif tarred && bzipped
+        system("tar", "-jxOf", trace_name, :out => file.path)
+      elsif tarred
+        system("tar", "-xOf", trace_name, :out => file.path)
+      elsif gzipped
+        system("gunzip", "-c", trace_name, :out => file.path)
+      elsif bzipped
+        system("bunzip2", "-c", trace_name, :out => file.path)
+      elsif zipped
+        system("unzip", "-p", trace_name, "-x", "__MACOSX/*", :out => file.path, :err => "/dev/null")
+      end
+
+      file.unlink
+    else
+      file = File.open(trace_name)
+    end
+
+    file
+  end
+
+  def import
+    logger.info("GPX Import importing #{name} (#{id}) from #{user.email}")
+
+    gpx = GPX::File.new(trace_name)
+
+    f_lat = 0
+    f_lon = 0
+    first = true
+
+    # If there are any existing points for this trace then delete them
+    Tracepoint.where(:gpx_id => 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(:gpx_id => id).maximum(:latitude)
+      min_lat = Tracepoint.where(:gpx_id => id).minimum(:latitude)
+      max_lon = Tracepoint.where(:gpx_id => id).maximum(:longitude)
+      min_lon = Tracepoint.where(:gpx_id => 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
+      self.large_picture = gpx.picture(min_lat, min_lon, max_lat, max_lon, gpx.actual_points)
+      self.icon_picture = gpx.icon(min_lat, min_lon, max_lat, max_lon)
+      self.size = gpx.actual_points
+      self.inserted = true
+      save!
+    end
+
+    logger.info "done trace #{id}"
+
+    gpx
+  end
+
+  private
+
+  def remove_files
+    FileUtils.rm_f(trace_name)
+    FileUtils.rm_f(icon_picture_name)
+    FileUtils.rm_f(large_picture_name)

   end
 end
   end
 end