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102909edb3
This PR introduces a new secure media setting. When enabled, it prevent unathorized access to media uploads (files of type image, video and audio). When the `login_required` setting is enabled, then all media uploads will be protected from unauthorized (anonymous) access. When `login_required`is disabled, only media in private messages will be protected from unauthorized access. A few notes: - the `prevent_anons_from_downloading_files` setting no longer applies to audio and video uploads - the `secure_media` setting can only be enabled if S3 uploads are already enabled and configured - upload records have a new column, `secure`, which is a boolean `true/false` of the upload's secure status - when creating a public post with an upload that has already been uploaded and is marked as secure, the post creator will raise an error - when enabling or disabling the setting on a site with existing uploads, the rake task `uploads:ensure_correct_acl` should be used to update all uploads' secure status and their ACL on S3
381 lines
12 KiB
Ruby
381 lines
12 KiB
Ruby
# frozen_string_literal: true
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require 'rails_helper'
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describe Upload do
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let(:upload) { build(:upload) }
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let(:user_id) { 1 }
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let(:image_filename) { "logo.png" }
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let(:image) { file_from_fixtures(image_filename) }
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let(:image_svg_filename) { "image.svg" }
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let(:image_svg) { file_from_fixtures(image_svg_filename) }
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let(:huge_image_filename) { "huge.jpg" }
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let(:huge_image) { file_from_fixtures(huge_image_filename) }
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let(:attachment_path) { __FILE__ }
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let(:attachment) { File.new(attachment_path) }
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context ".create_thumbnail!" do
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it "does not create a thumbnail when disabled" do
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SiteSetting.create_thumbnails = false
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OptimizedImage.expects(:create_for).never
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upload.create_thumbnail!(100, 100)
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end
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it "creates a thumbnail" do
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upload = Fabricate(:upload)
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thumbnail = Fabricate(:optimized_image, upload: upload)
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SiteSetting.expects(:create_thumbnails?).returns(true)
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OptimizedImage.expects(:create_for).returns(thumbnail)
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upload.create_thumbnail!(100, 100)
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upload.reload
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expect(upload.optimized_images.count).to eq(1)
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end
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end
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it "supports <style> element in SVG" do
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SiteSetting.authorized_extensions = "svg"
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upload = UploadCreator.new(image_svg, image_svg_filename).create_for(user_id)
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expect(upload.valid?).to eq(true)
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path = Discourse.store.path_for(upload)
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expect(File.read(path)).to match(/<style>/)
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end
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it "can reconstruct dimensions on demand" do
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upload = UploadCreator.new(huge_image, "image.png").create_for(user_id)
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upload.update_columns(width: nil, height: nil, thumbnail_width: nil, thumbnail_height: nil)
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upload = Upload.find(upload.id)
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expect(upload.width).to eq(64250)
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expect(upload.height).to eq(64250)
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upload.reload
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expect(upload.read_attribute(:width)).to eq(64250)
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upload.update_columns(width: nil, height: nil, thumbnail_width: nil, thumbnail_height: nil)
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expect(upload.thumbnail_width).to eq(500)
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expect(upload.thumbnail_height).to eq(500)
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end
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it "dimension calculation returns nil on missing image" do
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upload = UploadCreator.new(huge_image, "image.png").create_for(user_id)
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upload.update_columns(width: nil, height: nil, thumbnail_width: nil, thumbnail_height: nil)
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missing_url = "wrong_folder#{upload.url}"
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upload.update_columns(url: missing_url)
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expect(upload.thumbnail_height).to eq(nil)
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expect(upload.thumbnail_width).to eq(nil)
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end
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it "extracts file extension" do
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created_upload = UploadCreator.new(image, image_filename).create_for(user_id)
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expect(created_upload.extension).to eq("png")
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end
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it "should create an invalid upload when the filename is blank" do
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SiteSetting.authorized_extensions = "*"
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created_upload = UploadCreator.new(attachment, nil).create_for(user_id)
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expect(created_upload.valid?).to eq(false)
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end
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context ".extract_url" do
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let(:url) { 'https://example.com/uploads/default/original/1X/d1c2d40ab994e8410c.png' }
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it 'should return the right part of url' do
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expect(Upload.extract_url(url).to_s).to eq('/original/1X/d1c2d40ab994e8410c.png')
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end
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end
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context ".get_from_url" do
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let(:sha1) { "10f73034616a796dfd70177dc54b6def44c4ba6f" }
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let(:upload) { Fabricate(:upload, sha1: sha1) }
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it "works when the file has been uploaded" do
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expect(Upload.get_from_url(upload.url)).to eq(upload)
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end
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describe 'for an extensionless url' do
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before do
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upload.update!(url: upload.url.sub('.png', ''))
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upload.reload
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end
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it 'should return the right upload' do
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expect(Upload.get_from_url(upload.url)).to eq(upload)
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end
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end
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it "should return the right upload as long as the upload's URL matches" do
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upload.update!(url: "/uploads/default/12345/971308e535305c51.png")
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expect(Upload.get_from_url(upload.url)).to eq(upload)
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expect(Upload.get_from_url("/uploads/default/123131/971308e535305c51.png"))
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.to eq(nil)
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end
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describe 'for a url a tree' do
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before do
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upload.update!(url:
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Discourse.store.get_path_for(
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"original",
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16001,
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upload.sha1,
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".#{upload.extension}"
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)
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)
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end
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it 'should return the right upload' do
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expect(Upload.get_from_url(upload.url)).to eq(upload)
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end
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end
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it "works when using a cdn" do
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begin
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original_asset_host = Rails.configuration.action_controller.asset_host
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Rails.configuration.action_controller.asset_host = 'http://my.cdn.com'
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expect(Upload.get_from_url(
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URI.join("http://my.cdn.com", upload.url).to_s
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)).to eq(upload)
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ensure
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Rails.configuration.action_controller.asset_host = original_asset_host
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end
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end
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it "should return the right upload when using the full URL" do
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expect(Upload.get_from_url(
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URI.join("http://discourse.some.com:3000/", upload.url).to_s
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)).to eq(upload)
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end
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it "doesn't blow up with an invalid URI" do
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expect { Upload.get_from_url("http://ip:port/index.html") }.not_to raise_error
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expect { Upload.get_from_url("mailto:admin%40example.com") }.not_to raise_error
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expect { Upload.get_from_url("mailto:example") }.not_to raise_error
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end
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describe "s3 store" do
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let(:upload) { Fabricate(:upload_s3) }
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let(:path) { upload.url.sub(SiteSetting.Upload.s3_base_url, '') }
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before do
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SiteSetting.enable_s3_uploads = true
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SiteSetting.s3_upload_bucket = "s3-upload-bucket"
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SiteSetting.s3_access_key_id = "some key"
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SiteSetting.s3_secret_access_key = "some secret key"
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end
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it "should return the right upload when using base url (not CDN) for s3" do
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upload
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expect(Upload.get_from_url(upload.url)).to eq(upload)
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end
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describe 'when using a cdn' do
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let(:s3_cdn_url) { 'https://mycdn.slowly.net' }
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before do
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SiteSetting.s3_cdn_url = s3_cdn_url
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end
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it "should return the right upload" do
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upload
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expect(Upload.get_from_url(URI.join(s3_cdn_url, path).to_s)).to eq(upload)
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end
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describe 'when upload bucket contains subfolder' do
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before do
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SiteSetting.s3_upload_bucket = "s3-upload-bucket/path/path2"
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end
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it "should return the right upload" do
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upload
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expect(Upload.get_from_url(URI.join(s3_cdn_url, path).to_s)).to eq(upload)
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end
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end
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end
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it "should return the right upload when using one CDN for both s3 and assets" do
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begin
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original_asset_host = Rails.configuration.action_controller.asset_host
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cdn_url = 'http://my.cdn.com'
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Rails.configuration.action_controller.asset_host = cdn_url
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SiteSetting.s3_cdn_url = cdn_url
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upload
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expect(Upload.get_from_url(
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URI.join(cdn_url, path).to_s
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)).to eq(upload)
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ensure
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Rails.configuration.action_controller.asset_host = original_asset_host
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end
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end
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end
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end
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describe '.generate_digest' do
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it "should return the right digest" do
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expect(Upload.generate_digest(image.path)).to eq('bc975735dfc6409c1c2aa5ebf2239949bcbdbd65')
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end
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end
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describe '.short_url' do
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it "should generate a correct short url" do
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upload = Upload.new(sha1: 'bda2c513e1da04f7b4e99230851ea2aafeb8cc4e', extension: 'png')
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expect(upload.short_url).to eq('upload://r3AYqESanERjladb4vBB7VsMBm6.png')
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upload.extension = nil
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expect(upload.short_url).to eq('upload://r3AYqESanERjladb4vBB7VsMBm6')
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end
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end
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describe '.sha1_from_short_url' do
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it "should be able to look up sha1" do
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sha1 = 'bda2c513e1da04f7b4e99230851ea2aafeb8cc4e'
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expect(Upload.sha1_from_short_url('upload://r3AYqESanERjladb4vBB7VsMBm6.png')).to eq(sha1)
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expect(Upload.sha1_from_short_url('upload://r3AYqESanERjladb4vBB7VsMBm6')).to eq(sha1)
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expect(Upload.sha1_from_short_url('r3AYqESanERjladb4vBB7VsMBm6')).to eq(sha1)
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end
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it "should be able to look up sha1 even with leading zeros" do
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sha1 = '0000c513e1da04f7b4e99230851ea2aafeb8cc4e'
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expect(Upload.sha1_from_short_url('upload://1Eg9p8rrCURq4T3a6iJUk0ri6.png')).to eq(sha1)
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end
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end
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describe '#base62_sha1' do
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it 'should return the right value' do
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upload.update!(sha1: "0000c513e1da04f7b4e99230851ea2aafeb8cc4e")
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expect(upload.base62_sha1).to eq("1Eg9p8rrCURq4T3a6iJUk0ri6")
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end
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end
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describe '.sha1_from_short_path' do
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it "should be able to lookup sha1" do
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path = "/uploads/short-url/3UjQ4jHoyeoQndk5y3qHzm3QVTQ.png"
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sha1 = "1b6453892473a467d07372d45eb05abc2031647a"
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expect(Upload.sha1_from_short_path(path)).to eq(sha1)
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expect(Upload.sha1_from_short_path(path.sub(".png", ""))).to eq(sha1)
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end
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end
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describe '#to_s' do
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it 'should return the right value' do
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expect(upload.to_s).to eq(upload.url)
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end
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end
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describe '.migrate_to_new_scheme' do
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it 'should not migrate system uploads' do
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SiteSetting.migrate_to_new_scheme = true
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expect { Upload.migrate_to_new_scheme }
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.to_not change { Upload.pluck(:url) }
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end
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end
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describe '.update_secure_status' do
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it 'marks a local upload as not secure with default settings' do
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upload.update!(secure: true)
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expect { upload.update_secure_status }
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.to change { upload.secure }
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expect(upload.secure).to eq(false)
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end
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it 'marks a local attachment as secure if prevent_anons_from_downloading_files is enabled' do
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SiteSetting.prevent_anons_from_downloading_files = true
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SiteSetting.authorized_extensions = "pdf"
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upload.update!(original_filename: "small.pdf", extension: "pdf")
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expect { upload.update_secure_status }
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.to change { upload.secure }
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expect(upload.secure).to eq(true)
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end
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it 'marks a local attachment as not secure if prevent_anons_from_downloading_files is disabled' do
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SiteSetting.prevent_anons_from_downloading_files = false
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SiteSetting.authorized_extensions = "pdf"
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upload.update!(original_filename: "small.pdf", extension: "pdf", secure: true)
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expect { upload.update_secure_status }
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.to change { upload.secure }
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expect(upload.secure).to eq(false)
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end
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it 'does not change secure status of a non-attachment when prevent_anons_from_downloading_files is enabled' do
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SiteSetting.prevent_anons_from_downloading_files = true
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SiteSetting.authorized_extensions = "mp4"
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upload.update!(original_filename: "small.mp4", extension: "mp4")
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expect { upload.update_secure_status }
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.not_to change { upload.secure }
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expect(upload.secure).to eq(false)
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end
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context "secure media enabled" do
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before do
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SiteSetting.enable_s3_uploads = true
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SiteSetting.s3_upload_bucket = "s3-upload-bucket"
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SiteSetting.s3_access_key_id = "some key"
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SiteSetting.s3_secret_access_key = "some secret key"
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SiteSetting.secure_media = true
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stub_request(:head, "https://#{SiteSetting.s3_upload_bucket}.s3.amazonaws.com/")
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stub_request(
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:put,
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"https://#{SiteSetting.s3_upload_bucket}.s3.amazonaws.com/original/1X/#{upload.sha1}.#{upload.extension}?acl"
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)
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end
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it 'marks an image upload as not secure when not associated with a post' do
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upload.update!(secure: true)
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expect { upload.update_secure_status }
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.to change { upload.secure }
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expect(upload.secure).to eq(false)
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end
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it 'marks an image upload as secure if login_required is enabled' do
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SiteSetting.login_required = true
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upload.update!(secure: false)
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expect { upload.update_secure_status }
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.to change { upload.secure }
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expect(upload.secure).to eq(true)
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end
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end
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end
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describe '.reset_unknown_extensions!' do
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it 'should reset the extension of uploads when it is "unknown"' do
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upload1 = Fabricate(:upload, extension: "unknown")
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upload2 = Fabricate(:upload, extension: "png")
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Upload.reset_unknown_extensions!
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expect(upload1.reload.extension).to eq(nil)
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expect(upload2.reload.extension).to eq("png")
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end
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end
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end
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