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renamed pending post to upload

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albert 2010-02-12 13:46:49 -05:00
parent f0ed612042
commit ba05f727b0
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210
app/models/upload.rb Normal file
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require "danbooru_image_resizer/danbooru_image_resizer"
require "tmpdir"
class Upload < ActiveRecord::Base
attr_accessor :file, :image_width, :image_height, :file_ext, :md5, :file_size
belongs_to :uploader, :class_name => "User"
before_save :convert_cgi_file
def process!
update_attribute(:status, "processing")
if is_downloadable?
download_from_source(temp_file_path)
end
self.file_ext = content_type_to_file_ext(content_type)
calculate_hash(file_path)
calculate_file_size(file_path)
calculate_dimensions(file_path) if has_dimensions?
generate_resizes(file_path)
move_file
post = convert_to_post
if post.save
update_attributes(:status => "finished", :post_id => post.id)
else
update_attribute(:status, "error: " + post.errors.full_messages.join(", "))
end
end
def convert_to_post
returning Post.new do |p|
p.tag_string = tag_string
p.md5 = md5
p.file_ext = file_ext
p.image_width = image_width
p.image_height = image_height
p.uploader_id = uploader_id
p.uploader_ip_addr = uploader_ip_addr
p.updater_id = uploader_id
p.updater_ip_addr = uploader_ip_addr
p.rating = rating
p.source = source
p.file_size = file_size
end
end
def move_file
FileUtils.mv(file_path, md5_file_path)
end
def calculate_file_size(source_path)
self.file_size = File.size(source_path)
end
# Calculates the MD5 based on whatever is in temp_file_path
def calculate_hash(source_path)
self.md5 = Digest::MD5.file(source_path).hexdigest
end
class Error < Exception ; end
module ResizerMethods
def generate_resizes(source_path)
generate_resize_for(Danbooru.config.small_image_width, Danbooru.config.small_image_width, source_path)
generate_resize_for(Danbooru.config.medium_image_width, nil, source_path)
generate_resize_for(Danbooru.config.large_image_width, nil, source_path)
end
def generate_resize_for(width, height, source_path)
return if width.nil?
return unless image_width > width
return unless height.nil? || image_height > height
unless File.exists?(source_path)
raise Error.new("file not found")
end
size = Danbooru.reduce_to({:width => image_width, :height => image_height}, {:width => width, :height => height})
# If we're not reducing the resolution, only reencode if the source image larger than
# 200 kilobytes.
if size[:width] == image_width && size[:height] == image_height && File.size?(source_path) < 200.kilobytes
return
end
Danbooru.resize(file_ext, source_path, resized_file_path_for(width), size, 90)
end
end
module DimensionMethods
# Figures out the dimensions of the image.
def calculate_dimensions(file_path)
image_size = ImageSize.new(File.open(file_path, "rb"))
self.image_width = image_size.get_width
self.image_height = image_size.get_height
end
# Does this file have image dimensions?
def has_dimensions?
%w(jpg gif png swf).include?(file_ext)
end
end
module ContentTypeMethods
def content_type_to_file_ext(content_type)
case content_type
when "image/jpeg"
"jpg"
when "image/gif"
"gif"
when "image/png"
"png"
when "application/x-shockwave-flash"
"swf"
else
"bin"
end
end
# Converts a content type string to a file extension
def file_ext_to_content_type(file_ext)
case file_ext
when /\.jpeg$|\.jpg$/
"image/jpeg"
when /\.gif$/
"image/gif"
when /\.png$/
"image/png"
when /\.swf$/
"application/x-shockwave-flash"
else
"application/octet-stream"
end
end
end
module FilePathMethods
def md5_file_path
prefix = Rails.env == "test" ? "test." : ""
"#{Rails.root}/public/data/original/#{prefix}#{md5}.#{file_ext}"
end
def resized_file_path_for(width)
prefix = Rails.env == "test" ? "test." : ""
case width
when Danbooru.config.small_image_width
"#{Rails.root}/public/data/thumb/#{prefix}#{md5}.jpg"
when Danbooru.config.medium_image_width
"#{Rails.root}/public/data/medium/#{prefix}#{md5}.jpg"
when Danbooru.config.large_image_width
"#{Rails.root}/public/data/large/#{prefix}#{md5}.jpg"
end
end
def temp_file_path
File.join(Dir::tmpdir, "#{Time.now.to_f}.#{$PROCESS_ID}")
end
end
module DownloaderMethods
# Determines whether the source is downloadable
def is_downloadable?
source =~ /^http:\/\// && file_path.blank?
end
# Downloads the file to destination_path
def download_from_source(destination_path)
download = Download.new(source, destination_path)
download.download!
self.file_path = destination_path
self.content_type = download.content_type || file_ext_to_content_type(source)
self.file_ext = content_type_to_file_ext(content_type)
self.source = download.source
end
end
module CgiFileMethods
def convert_cgi_file
return if file.blank? || file.size == 0
if file.local_path
self.file_path = file.local_path
else
self.file_path = temp_file_path
File.open(file_path, 'wb') do |out|
out.write(file.read)
end
end
self.content_type = file.content_type || file_ext_to_content_type(file.original_filename)
self.file_ext = content_type_to_file_ext(content_type)
end
end
include ResizerMethods
include DimensionMethods
include ContentTypeMethods
include DownloaderMethods
include FilePathMethods
include CgiFileMethods
end

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db/migrate/20100205224030_create_uploads.rb Normal file
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class CreateUploads < ActiveRecord::Migration
def self.up
create_table :uploads do |t|
t.timestamps
t.column :source, :string
t.column :file_path, :string
t.column :content_type, :string
t.column :rating, :character, :null => false
t.column :uploader_id, :integer, :null => false
t.column :uploader_ip_addr, "inet", :null => false
t.column :tag_string, :text, :null => false
t.column :status, :string, :null => false, :default => "pending"
t.column :post_id, :integer
end
end
def self.down
drop_table :uploads
end
end

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test/factories/upload.rb Normal file
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require 'fileutils'
Factory.define(:upload) do |f|
f.rating "s"
f.uploader {|x| x.association(:user)}
f.uploader_ip_addr "127.0.0.1"
f.tag_string "special"
f.status "pending"
end
Factory.define(:downloadable_upload, :parent => :upload) do |f|
f.source "http://www.google.com/intl/en_ALL/images/logo.gif"
end
Factory.define(:uploaded_jpg_upload, :parent => :upload) do |f|
f.file_path do
FileUtils.cp("#{Rails.root}/test/files/test.jpg", "#{Rails.root}/tmp")
"#{Rails.root}/tmp/test.jpg"
end
end
Factory.define(:uploaded_large_jpg_upload, :parent => :upload) do |f|
f.file_ext "jpg"
f.content_type "image/jpeg"
f.file_path do
FileUtils.cp("#{Rails.root}/test/files/test-large.jpg", "#{Rails.root}/tmp")
"#{Rails.root}/tmp/test-large.jpg"
end
end
Factory.define(:uploaded_png_upload, :parent => :upload) do |f|
f.file_path do
FileUtils.cp("#{Rails.root}/test/files/test.png", "#{Rails.root}/tmp")
"#{Rails.root}/tmp/test.png"
end
end
Factory.define(:uploaded_gif_upload, :parent => :upload) do |f|
f.file_path do
FileUtils.cp("#{Rails.root}/test/files/test.gif", "#{Rails.root}/tmp")
"#{Rails.root}/tmp/test.gif"
end
end

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test/unit/upload_test.rb Normal file
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require File.dirname(__FILE__) + '/../test_helper'
class UploadTest < ActiveSupport::TestCase
context "An upload" do
teardown do
FileUtils.rm_f(Dir.glob("#{Rails.root}/tmp/test.*"))
end
context "image size calculator" do
should "discover the dimensions for a JPG" do
@upload = Factory.create(:uploaded_jpg_upload)
assert_nothing_raised {@upload.calculate_dimensions(@upload.file_path)}
assert_equal(500, @upload.image_width)
assert_equal(335, @upload.image_height)
end
should "discover the dimensions for a PNG" do
@upload = Factory.create(:uploaded_png_upload)
assert_nothing_raised {@upload.calculate_dimensions(@upload.file_path)}
assert_equal(768, @upload.image_width)
assert_equal(1024, @upload.image_height)
end
should "discover the dimensions for a GIF" do
@upload = Factory.create(:uploaded_gif_upload)
assert_nothing_raised {@upload.calculate_dimensions(@upload.file_path)}
assert_equal(400, @upload.image_width)
assert_equal(400, @upload.image_height)
end
end
context "content type calculator" do
should "know how to parse jpeg, png, gif, and swf file extensions" do
@upload = Factory.create(:uploaded_jpg_upload)
assert_equal("image/jpeg", @upload.file_ext_to_content_type("test.jpeg"))
assert_equal("image/gif", @upload.file_ext_to_content_type("test.gif"))
assert_equal("image/png", @upload.file_ext_to_content_type("test.png"))
assert_equal("application/x-shockwave-flash", @upload.file_ext_to_content_type("test.swf"))
assert_equal("application/octet-stream", @upload.file_ext_to_content_type(""))
end
should "know how to parse jpeg, png, gif, and swf content types" do
@upload = Factory.create(:uploaded_jpg_upload)
assert_equal("jpg", @upload.content_type_to_file_ext("image/jpeg"))
assert_equal("gif", @upload.content_type_to_file_ext("image/gif"))
assert_equal("png", @upload.content_type_to_file_ext("image/png"))
assert_equal("swf", @upload.content_type_to_file_ext("application/x-shockwave-flash"))
assert_equal("bin", @upload.content_type_to_file_ext(""))
end
end
context "downloader" do
should "initialize the final path and content type after downloading a file" do
@upload = Factory.create(:downloadable_upload)
path = "#{Rails.root}/tmp/test.download.jpg"
assert_nothing_raised {@upload.download_from_source(path)}
assert(File.exists?(path))
assert_equal(8558, File.size(path))
assert_equal("image/gif", @upload.content_type)
assert_equal(path, @upload.file_path)
assert_equal("gif", @upload.file_ext)
end
end
context "file processor" do
should "parse and process a cgi file representation" do
FileUtils.cp("#{Rails.root}/test/files/test.jpg", "#{Rails.root}/tmp")
@upload = Upload.new(:file => upload_jpeg("#{Rails.root}/tmp/test.jpg"))
assert_nothing_raised {@upload.convert_cgi_file}
assert_equal("image/jpeg", @upload.content_type)
assert(File.exists?(@upload.file_path))
assert_equal(28086, File.size(@upload.file_path))
assert_equal("jpg", @upload.file_ext)
end
end
context "hash calculator" do
should "caculate the hash" do
@upload = Factory.create(:uploaded_jpg_upload)
@upload.calculate_hash(@upload.file_path)
assert_equal("ecef68c44edb8a0d6a3070b5f8e8ee76", @upload.md5)
end
end
context "resizer" do
teardown do
FileUtils.rm_f(Dir.glob("#{Rails.root}/public/data/thumb/test.*.jpg"))
FileUtils.rm_f(Dir.glob("#{Rails.root}/public/data/medium/test.*.jpg"))
FileUtils.rm_f(Dir.glob("#{Rails.root}/public/data/large/test.*.jpg"))
FileUtils.rm_f(Dir.glob("#{Rails.root}/public/data/original/test.*.jpg"))
end
should "generate several resized versions of the image" do
@upload = Factory.create(:uploaded_large_jpg_upload)
@upload.calculate_hash(@upload.file_path)
@upload.calculate_dimensions(@upload.file_path)
assert_nothing_raised {@upload.generate_resizes(@upload.file_path)}
assert(File.exists?(@upload.resized_file_path_for(Danbooru.config.small_image_width)))
assert_equal(6556, File.size(@upload.resized_file_path_for(Danbooru.config.small_image_width)))
assert(File.exists?(@upload.resized_file_path_for(Danbooru.config.medium_image_width)))
assert_equal(39411, File.size(@upload.resized_file_path_for(Danbooru.config.medium_image_width)))
assert(File.exists?(@upload.resized_file_path_for(Danbooru.config.large_image_width)))
assert_equal(179324, File.size(@upload.resized_file_path_for(Danbooru.config.large_image_width)))
end
end
should "process completely for a downloaded image" do
@upload = Factory.create(:downloadable_upload,
:rating => "s",
:uploader_ip_addr => "127.0.0.1",
:tag_string => "hoge foo"
)
assert_difference("Post.count") do
assert_nothing_raised {@upload.process!}
end
post = Post.last
assert_equal("hoge foo", post.tag_string)
assert_equal("s", post.rating)
assert_equal(@upload.uploader_id, post.uploader_id)
assert_equal("127.0.0.1", post.uploader_ip_addr)
assert_equal(@upload.md5, post.md5)
assert_equal("gif", post.file_ext)
assert_equal(276, post.image_width)
assert_equal(110, post.image_height)
assert_equal(8558, post.file_size)
assert_equal(post.id, @upload.post_id)
assert_equal("finished", @upload.status)
end
end
should "process completely for an uploaded image" do
@upload = Factory.create(:uploaded_jpg_upload,
:rating => "s",
:uploader_ip_addr => "127.0.0.1",
:tag_string => "hoge foo"
)
@upload.file = upload_jpeg("#{Rails.root}/test/files/test.jpg")
@upload.convert_cgi_file
assert_difference("Post.count") do
assert_nothing_raised {@upload.process!}
end
post = Post.last
assert_equal("hoge foo", post.tag_string)
assert_equal("s", post.rating)
assert_equal(@upload.uploader_id, post.uploader_id)
assert_equal("127.0.0.1", post.uploader_ip_addr)
assert_equal(@upload.md5, post.md5)
assert_equal("jpg", post.file_ext)
assert(File.exists?(post.file_path))
assert_equal(28086, File.size(post.file_path))
assert_equal(post.id, @upload.post_id)
assert_equal("finished", @upload.status)
end
end