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fix image uploads on s3/imgur

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This commit is contained in:
Régis Hanol 2013-06-05 00:34:53 +02:00
parent 2465c9c724
commit e3e55d4dad
11 changed files with 202 additions and 174 deletions
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5
app/controllers/uploads_controller.rb
View File

@ -4,10 +4,14 @@ class UploadsController < ApplicationController
def create
requires_parameter(:topic_id)
file = params[:file] || params[:files].first
# only supports images for now
return render status: 415, json: failed_json unless file.content_type =~ /^image\/.+/
upload = Upload.create_for(current_user.id, file, params[:topic_id])
render_serialized(upload, UploadSerializer, root: false)
rescue FastImage::ImageFetchFailure
render status: 422, text: I18n.t("upload.image.fetch_failure")
rescue FastImage::UnknownImageType
@ -15,4 +19,5 @@ class UploadsController < ApplicationController
rescue FastImage::SizeNotFound
render status: 422, text: I18n.t("upload.image.size_not_found")
end
end

5
app/models/site_setting.rb
View File

@ -73,8 +73,7 @@ class SiteSetting < ActiveRecord::Base
setting(:crawl_images, !Rails.env.test?)
setting(:enable_imgur, false)
setting(:imgur_client_id, '')
setting(:imgur_client_secret, '')
setting(:imgur_endpoint, "http://api.imgur.com/3/image.json")
setting(:imgur_endpoint, "https://api.imgur.com/3/image.json")
setting(:max_image_width, 690)
client_setting(:category_featured_topics, 6)
setting(:topics_per_page, 30)
@ -165,7 +164,7 @@ class SiteSetting < ActiveRecord::Base
setting(:enable_s3_uploads, false)
setting(:s3_access_key_id, '')
setting(:s3_secret_access_key, '')
setting(:s3_region, 'us-west-1')
setting(:s3_region, '')
setting(:s3_upload_bucket, '')
setting(:default_trust_level, 0)

98
app/models/upload.rb
View File

@ -1,4 +1,8 @@
require 'digest/sha1'
require 'image_sizer'
require 'imgur'
require 's3'
require 'local_store'
class Upload < ActiveRecord::Base
belongs_to :user
@ -7,96 +11,39 @@ class Upload < ActiveRecord::Base
validates_presence_of :filesize
validates_presence_of :original_filename
# Create an upload given a user, file and topic
def self.create_for(user_id, file, topic_id)
return create_on_imgur(user_id, file, topic_id) if SiteSetting.enable_imgur?
return create_on_s3(user_id, file, topic_id) if SiteSetting.enable_s3_uploads?
return create_locally(user_id, file, topic_id)
end
# retrieve image info
image_info = FastImage.new(file.tempfile, raise_on_failure: true)
# compute image aspect ratio
width, height = ImageSizer.resize(*image_info.size)
# Store uploads on imgur
def self.create_on_imgur(user_id, file, topic_id)
@imgur_loaded = require 'imgur' unless @imgur_loaded
info = Imgur.upload_file(file)
Upload.create!({
user_id: user_id,
topic_id: topic_id,
original_filename: file.original_filename
}.merge!(info))
end
# Store uploads on s3
def self.create_on_s3(user_id, file, topic_id)
@fog_loaded = require 'fog' unless @fog_loaded
tempfile = file.tempfile
upload = Upload.new(user_id: user_id,
topic_id: topic_id,
filesize: File.size(tempfile),
original_filename: file.original_filename)
image_info = FastImage.new(tempfile, raise_on_failure: true)
blob = file.read
sha1 = Digest::SHA1.hexdigest(blob)
remote_filename = "#{sha1}.#{image_info.type}"
fog = Fog::Storage.new(
aws_access_key_id: SiteSetting.s3_access_key_id,
aws_secret_access_key: SiteSetting.s3_secret_access_key,
region: SiteSetting.s3_region,
provider: 'AWS'
)
directory = fog.directories.create(key: SiteSetting.s3_upload_bucket)
file = directory.files.create(
key: remote_filename,
body: tempfile,
public: true,
content_type: file.content_type
)
upload.width, upload.height = ImageSizer.resize(*image_info.size)
upload.url = "//#{SiteSetting.s3_upload_bucket}.s3-#{SiteSetting.s3_region}.amazonaws.com/#{remote_filename}"
upload.save
upload
end
def self.create_locally(user_id, file, topic_id)
upload = Upload.create!({
user_id: user_id,
topic_id: topic_id,
url: "",
original_filename: file.original_filename,
filesize: File.size(file.tempfile),
original_filename: file.original_filename
width: width,
height: height,
url: ""
})
# populate the rest of the info
clean_name = Digest::SHA1.hexdigest("#{Time.now.to_s}#{file.original_filename}")[0,16]
image_info = FastImage.new(file.tempfile, raise_on_failure: true)
clean_name += ".#{image_info.type}"
url_root = "/uploads/#{RailsMultisite::ConnectionManagement.current_db}/#{upload.id}"
path = "#{Rails.root}/public#{url_root}"
# make sure we're at the beginning of the file (FastImage is moving the pointer)
file.rewind
FileUtils.mkdir_p path
# not using cause mv, cause permissions are no good on move
File.open("#{path}/#{clean_name}", "wb") do |f|
f.write File.read(file.tempfile)
end
upload.width, upload.height = ImageSizer.resize(*image_info.size)
upload.url = Discourse::base_uri + "#{url_root}/#{clean_name}"
# store the file and update its url
upload.url = Upload.store_file(file, image_info, upload.id)
upload.save
upload
end
def self.store_file(file, image_info, upload_id)
return Imgur.store_file(file, image_info, upload_id) if SiteSetting.enable_imgur?
return S3.store_file(file, image_info, upload_id) if SiteSetting.enable_s3_uploads?
return LocalStore.store_file(file, image_info, upload_id)
end
end
# == Schema Information
@ -119,4 +66,3 @@ end
# index_uploads_on_forum_thread_id (topic_id)
# index_uploads_on_user_id (user_id)
#

3
lib/discourse.rb
View File

@ -14,6 +14,9 @@ module Discourse
# When something they want is not found
class NotFound < Exception; end
# When a setting is missing
class SiteSettingMissing < Exception; end
def self.cache
@cache ||= Cache.new
end

26
lib/imgur.rb
View File

@ -1,27 +1,25 @@
require 'rest_client'
require 'image_size'
module Imgur
def self.upload_file(file)
def self.store_file(file, image_info, upload_id)
raise Discourse::SiteSettingMissing.new("imgur_endpoint") if SiteSetting.imgur_endpoint.blank?
raise Discourse::SiteSettingMissing.new("imgur_client_id") if SiteSetting.imgur_client_id.blank?
@imgur_loaded = require 'imgur' unless @imgur_loaded
blob = file.read
response = RestClient.post(SiteSetting.imgur_endpoint, { image: Base64.encode64(blob) }, { 'Authorization' => "Client-ID #{SiteSetting.imgur_client_id}" })
response = RestClient.post(
SiteSetting.imgur_endpoint,
{ image: Base64.encode64(blob) },
{ 'Authorization' => "Client-ID #{SiteSetting.imgur_client_id}" }
)
json = JSON.parse(response.body)['data'] rescue nil
return nil if json.blank?
# Resize the image
image_info = FastImage.new(file, raise_on_failure: true)
width, height = ImageSizer.resize(*image_info.size)
{
url: json['link'],
filesize: File.size(file),
width: width,
height: height
}
return json['link']
end
end

18
lib/local_store.rb Normal file
View File

@ -0,0 +1,18 @@
module LocalStore
def self.store_file(file, image_info, upload_id)
clean_name = Digest::SHA1.hexdigest("#{Time.now.to_s}#{file.original_filename}")[0,16] + ".#{image_info.type}"
url_root = "/uploads/#{RailsMultisite::ConnectionManagement.current_db}/#{upload_id}"
path = "#{Rails.root}/public#{url_root}"
FileUtils.mkdir_p path
# not using cause mv, cause permissions are no good on move
File.open("#{path}/#{clean_name}", "wb") do |f|
f.write File.read(file.tempfile)
end
# url
return Discourse::base_uri + "#{url_root}/#{clean_name}"
end
end

50
lib/s3.rb Normal file
View File

@ -0,0 +1,50 @@
module S3
def self.store_file(file, image_info, upload_id)
raise Discourse::SiteSettingMissing.new("s3_upload_bucket") if SiteSetting.s3_upload_bucket.blank?
raise Discourse::SiteSettingMissing.new("s3_access_key_id") if SiteSetting.s3_access_key_id.blank?
raise Discourse::SiteSettingMissing.new("s3_secret_access_key") if SiteSetting.s3_secret_access_key.blank?
@fog_loaded = require 'fog' unless @fog_loaded
blob = file.read
sha1 = Digest::SHA1.hexdigest(blob)
remote_filename = "#{upload_id}#{sha1}.#{image_info.type}"
options = S3.generate_options
directory = S3.get_or_create_directory(SiteSetting.s3_upload_bucket, options)
# if this fails, it will throw an exception
file = S3.upload(file, remote_filename, directory)
return "//#{SiteSetting.s3_upload_bucket}.s3.amazonaws.com/#{remote_filename}"
end
def self.generate_options
options = {
provider: 'AWS',
aws_access_key_id: SiteSetting.s3_access_key_id,
aws_secret_access_key: SiteSetting.s3_secret_access_key
}
options[:region] = SiteSetting.s3_region unless SiteSetting.s3_region.empty?
options
end
def self.get_or_create_directory(name, options)
fog = Fog::Storage.new(options)
directory = fog.directories.get(name)
directory = fog.directories.create(key: name) unless directory
directory
end
def self.upload(file, name, directory)
directory.files.create(
key: name,
public: true,
body: file.tempfile,
content_type: file.content_type
)
end
end

25
spec/components/imgur_spec.rb
View File

@ -3,12 +3,18 @@ require 'imgur'
describe Imgur do
describe "upload_file" do
describe "store_file" do
let(:file) { Rails.root.join('app', 'assets', 'images', 'logo.png') }
let(:image_info) { FastImage.new(file) }
let(:params) { [SiteSetting.imgur_endpoint, { image: Base64.encode64(file.read) }, { 'Authorization' => "Client-ID #{SiteSetting.imgur_client_id}" }] }
it 'returns JSON of the Imgur upload if successful' do
before(:each) do
SiteSetting.stubs(:imgur_endpoint).returns("imgur_endpoint")
SiteSetting.stubs(:imgur_client_id).returns("imgur_client_id")
end
it 'returns the url of the Imgur upload if successful' do
json = {
data: {
id: 'fake',
@ -21,20 +27,9 @@ describe Imgur do
response = mock
response.expects(:body).returns(json)
image_info = {
url: 'http://imgur.com/fake.png',
filesize: File.size(file)
}
RestClient.expects(:post).with(*params).returns(response)
result = Imgur.upload_file(file)
# Not testing what width/height actually are because ImageSizer is already tested
result[:url].should eq(image_info[:url])
result[:filesize].should eq(image_info[:filesize])
result[:width].should_not be_nil
result[:height].should_not be_nil
Imgur.store_file(file, image_info, 1).should == 'http://imgur.com/fake.png'
end
it 'returns nil if the request fails' do
@ -47,7 +42,7 @@ describe Imgur do
response.expects(:body).returns(json)
RestClient.expects(:post).with(*params).returns(response)
Imgur.upload_file(file).should be_nil
Imgur.store_file(file, image_info, 1).should be_nil
end
end

30
spec/components/local_store_spec.rb Normal file
View File

@ -0,0 +1,30 @@
require 'spec_helper'
require 'local_store'
describe LocalStore do
describe "store_file" do
let(:file) do
ActionDispatch::Http::UploadedFile.new({
filename: 'logo.png',
content_type: 'image/png',
tempfile: File.new("#{Rails.root}/spec/fixtures/images/logo.png")
})
end
let(:image_info) { FastImage.new(file) }
it 'returns the url of the S3 upload if successful' do
# prevent the tests from creating directories & files...
FileUtils.stubs(:mkdir_p)
File.stubs(:open)
# The Time needs to be frozen as it is used to generate a clean & unique name
Time.stubs(:now).returns(Time.utc(2013, 2, 17, 12, 0, 0, 0))
#
LocalStore.store_file(file, image_info, 1).should == '/uploads/default/1/253dc8edf9d4ada1.png'
end
end
end

36
spec/components/s3_spec.rb Normal file
View File

@ -0,0 +1,36 @@
require 'spec_helper'
require 'fog'
require 's3'
describe S3 do
describe "store_file" do
let(:file) do
ActionDispatch::Http::UploadedFile.new({
filename: 'logo.png',
content_type: 'image/png',
tempfile: File.new("#{Rails.root}/spec/fixtures/images/logo.png")
})
end
let(:image_info) { FastImage.new(file) }
before(:each) do
SiteSetting.stubs(:s3_upload_bucket).returns("s3_upload_bucket")
SiteSetting.stubs(:s3_access_key_id).returns("s3_access_key_id")
SiteSetting.stubs(:s3_secret_access_key).returns("s3_secret_access_key")
Fog.mock!
end
it 'returns the url of the S3 upload if successful' do
S3.store_file(file, image_info, 1).should == '//s3_upload_bucket.s3.amazonaws.com/1e8b1353813a7d091231f9a27f03566f123463fc1.png'
end
after(:each) do
Fog.unmock!
end
end
end

80
spec/models/upload_spec.rb
View File

@ -1,6 +1,4 @@
require 'spec_helper'
require 'fog'
require 'imgur'
describe Upload do
@ -23,95 +21,45 @@ describe Upload do
})
end
it "uses imgur when it is enabled" do
SiteSetting.stubs(:enable_imgur?).returns(true)
Upload.expects(:create_on_imgur).with(user_id, logo, topic_id)
Upload.create_for(user_id, logo, topic_id)
end
let(:upload) { Upload.create_for(user_id, logo, topic_id) }
it "uses s3 when it is enabled" do
SiteSetting.stubs(:enable_s3_uploads?).returns(true)
Upload.expects(:create_on_s3).with(user_id, logo, topic_id)
Upload.create_for(user_id, logo, topic_id)
end
it "uses local storage otherwise" do
Upload.expects(:create_locally).with(user_id, logo, topic_id)
Upload.create_for(user_id, logo, topic_id)
end
let(:url) { "http://domain.com" }
shared_examples_for "upload" do
it "is valid" do
upload.user_id.should == user_id
upload.topic_id.should == topic_id
upload.original_filename.should == logo.original_filename
upload.filesize.should == logo.size
upload.filesize.should == File.size(logo.tempfile)
upload.width.should == 244
upload.height.should == 66
upload.url.should == url
end
end
context 'imgur' do
context "imgur" do
before(:each) do
# Stub out Imgur entirely as it already is tested.
Imgur.stubs(:upload_file).returns({
url: "imgurlink",
filesize: logo.size,
width: 244,
height: 66
})
SiteSetting.stubs(:enable_imgur?).returns(true)
Imgur.stubs(:store_file).returns(url)
end
let(:upload) { Upload.create_on_imgur(user_id, logo, topic_id) }
it_behaves_like "upload"
it "works" do
upload.url.should == "imgurlink"
end
end
context 's3' do
context "s3" do
before(:each) do
SiteSetting.stubs(:s3_upload_bucket).returns("bucket")
Fog.mock!
SiteSetting.stubs(:enable_s3_uploads?).returns(true)
S3.stubs(:store_file).returns(url)
end
let(:upload) { Upload.create_on_s3(user_id, logo, topic_id) }
it_behaves_like "upload"
it "works" do
upload.url.should == "//bucket.s3-us-west-1.amazonaws.com/e8b1353813a7d091231f9a27f03566f123463fc1.png"
end
after(:each) do
Fog.unmock!
end
end
context 'local' do
before(:each) do
# prevent the tests from creating directories & files...
FileUtils.stubs(:mkdir_p)
File.stubs(:open)
end
let(:upload) do
# The Time needs to be frozen as it is used to generate a clean & unique name
Time.stubs(:now).returns(Time.utc(2013, 2, 17, 12, 0, 0, 0))
Upload.create_locally(user_id, logo, topic_id)
end
context "locally" do
before(:each) { LocalStore.stubs(:store_file).returns(url) }
it_behaves_like "upload"
it "works" do
upload.url.should match /\/uploads\/default\/[\d]+\/253dc8edf9d4ada1.png/
end
end
end