452 lines
15 KiB
Ruby
452 lines
15 KiB
Ruby
# frozen_string_literal: true
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require 'rails_helper'
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require 'file_store/s3_store'
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RSpec.describe UploadCreator do
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fab!(:user) { Fabricate(:user) }
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describe '#create_for' do
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describe 'when upload is not an image' do
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before do
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SiteSetting.authorized_extensions = 'txt'
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end
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let(:filename) { "utf-8.txt" }
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let(:file) { file_from_fixtures(filename, "encodings") }
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it 'should store the upload with the right extension' do
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expect do
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UploadCreator.new(file, "utf-8\n.txt").create_for(user.id)
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end.to change { Upload.count }.by(1)
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upload = Upload.last
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expect(upload.extension).to eq('txt')
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expect(File.extname(upload.url)).to eq('.txt')
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expect(upload.original_filename).to eq('utf-8.txt')
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expect(user.user_uploads.count).to eq(1)
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expect(upload.user_uploads.count).to eq(1)
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user2 = Fabricate(:user)
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expect do
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UploadCreator.new(file, "utf-8\n.txt").create_for(user2.id)
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end.to change { Upload.count }.by(0)
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expect(user.user_uploads.count).to eq(1)
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expect(user2.user_uploads.count).to eq(1)
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expect(upload.user_uploads.count).to eq(2)
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end
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end
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describe 'when image is not authorized' do
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describe 'when image is for site setting' do
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let(:filename) { 'logo.png' }
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let(:file) { file_from_fixtures(filename) }
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before do
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SiteSetting.authorized_extensions = 'jpg'
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end
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it 'should create the right upload' do
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upload = UploadCreator.new(file, filename,
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for_site_setting: true
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).create_for(Discourse.system_user.id)
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expect(upload.persisted?).to eq(true)
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expect(upload.original_filename).to eq(filename)
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end
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end
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end
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describe 'when image has the wrong extension' do
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let(:filename) { "png_as.bin" }
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let(:file) { file_from_fixtures(filename) }
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it 'should store the upload with the right extension' do
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expect do
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UploadCreator.new(file, filename,
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force_optimize: true,
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type: UploadCreator::TYPES_TO_CROP.first
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).create_for(user.id)
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end.to change { Upload.count }.by(1)
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upload = Upload.last
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expect(upload.extension).to eq('png')
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expect(File.extname(upload.url)).to eq('.png')
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expect(upload.original_filename).to eq('png_as.png')
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end
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describe 'for tiff format' do
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before do
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SiteSetting.authorized_extensions = '.tiff|.bin'
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end
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let(:filename) { "tiff_as.bin" }
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let(:file) { file_from_fixtures(filename) }
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it 'should not correct the coerce filename' do
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expect do
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UploadCreator.new(file, filename).create_for(user.id)
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end.to change { Upload.count }.by(1)
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upload = Upload.last
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expect(upload.extension).to eq('bin')
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expect(File.extname(upload.url)).to eq('.bin')
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expect(upload.original_filename).to eq('tiff_as.bin')
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end
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end
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end
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describe 'pngquant' do
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let(:filename) { "pngquant.png" }
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let(:file) { file_from_fixtures(filename) }
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it 'should apply pngquant to optimized images' do
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upload = UploadCreator.new(file, filename,
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pasted: true,
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force_optimize: true
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).create_for(user.id)
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# no optimisation possible without losing details
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expect(upload.filesize).to eq(9558)
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thumbnail_size = upload.get_optimized_image(upload.width, upload.height, {}).filesize
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# pngquant will lose some colors causing some extra size reduction
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expect(thumbnail_size).to be < 7500
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end
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end
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describe 'converting to jpeg' do
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let(:filename) { "should_be_jpeg.png" }
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let(:file) { file_from_fixtures(filename) }
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let(:small_filename) { "logo.png" }
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let(:small_file) { file_from_fixtures(small_filename) }
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before do
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SiteSetting.png_to_jpg_quality = 1
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end
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it 'should not store file as jpeg if it does not meet absolute byte saving requirements' do
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# logo.png is 2297 bytes, converting to jpeg saves 30% but does not meet
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# the absolute savings required of 25_000 bytes, if you save less than that
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# skip this
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expect do
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UploadCreator.new(small_file, small_filename,
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pasted: true,
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force_optimize: true
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).create_for(user.id)
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end.to change { Upload.count }.by(1)
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upload = Upload.last
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expect(upload.extension).to eq('png')
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expect(File.extname(upload.url)).to eq('.png')
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expect(upload.original_filename).to eq('logo.png')
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end
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it 'should store the upload with the right extension' do
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expect do
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UploadCreator.new(file, filename,
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pasted: true,
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force_optimize: true
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).create_for(user.id)
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end.to change { Upload.count }.by(1)
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upload = Upload.last
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expect(upload.extension).to eq('jpeg')
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expect(File.extname(upload.url)).to eq('.jpeg')
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expect(upload.original_filename).to eq('should_be_jpeg.jpg')
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end
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end
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describe 'converting HEIF to jpeg' do
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let(:filename) { "should_be_jpeg.heic" }
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let(:file) { file_from_fixtures(filename, "images") }
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it 'should store the upload with the right extension' do
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expect do
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UploadCreator.new(file, filename).create_for(user.id)
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end.to change { Upload.count }.by(1)
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upload = Upload.last
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expect(upload.extension).to eq('jpeg')
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expect(File.extname(upload.url)).to eq('.jpeg')
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expect(upload.original_filename).to eq('should_be_jpeg.jpg')
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end
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end
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describe 'secure attachments' do
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let(:filename) { "small.pdf" }
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let(:file) { file_from_fixtures(filename, "pdf") }
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let(:opts) { { type: "composer" } }
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before do
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enable_s3_uploads
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SiteSetting.secure_media = true
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SiteSetting.authorized_extensions = 'pdf|svg|jpg'
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end
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it 'should mark attachments as secure' do
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upload = UploadCreator.new(file, filename, opts).create_for(user.id)
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stored_upload = Upload.last
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expect(stored_upload.secure?).to eq(true)
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end
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it 'should not mark theme uploads as secure' do
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fname = "custom-theme-icon-sprite.svg"
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upload = UploadCreator.new(file_from_fixtures(fname), fname, for_theme: true).create_for(-1)
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expect(upload.secure?).to eq(false)
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end
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end
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context 'uploading to s3' do
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let(:filename) { "should_be_jpeg.png" }
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let(:file) { file_from_fixtures(filename) }
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let(:pdf_filename) { "small.pdf" }
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let(:pdf_file) { file_from_fixtures(pdf_filename, "pdf") }
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let(:opts) { { type: "composer" } }
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before do
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enable_s3_uploads
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end
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it 'should store the file and return etag' do
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expect {
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UploadCreator.new(file, filename).create_for(user.id)
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}.to change { Upload.count }.by(1)
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upload = Upload.last
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expect(upload.etag).to eq('ETag')
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end
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it 'should return signed URL for secure attachments in S3' do
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SiteSetting.authorized_extensions = 'pdf'
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SiteSetting.secure_media = true
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upload = UploadCreator.new(pdf_file, pdf_filename, opts).create_for(user.id)
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stored_upload = Upload.last
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signed_url = Discourse.store.url_for(stored_upload)
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expect(stored_upload.secure?).to eq(true)
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expect(stored_upload.url).not_to eq(signed_url)
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expect(signed_url).to match(/Amz-Credential/)
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end
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end
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context "when the upload already exists based on the sha1" do
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let(:filename) { "small.pdf" }
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let(:file) { file_from_fixtures(filename, "pdf") }
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let!(:existing_upload) { Fabricate(:upload, sha1: Upload.generate_digest(file)) }
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let(:result) { UploadCreator.new(file, filename).create_for(user.id) }
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it "returns the existing upload" do
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expect(result).to eq(existing_upload)
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end
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it "does not set an original_sha1 normally" do
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expect(result.original_sha1).to eq(nil)
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end
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it "creates a userupload record" do
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result
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expect(UserUpload.exists?(user_id: user.id, upload_id: existing_upload.id)).to eq(true)
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end
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context "when the existing upload URL is blank (it has failed)" do
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before do
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existing_upload.update(url: '')
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end
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it "destroys the existing upload" do
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result
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expect(Upload.find_by(id: existing_upload.id)).to eq(nil)
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end
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end
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context "when SiteSetting.secure_media is enabled" do
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before do
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enable_s3_uploads
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SiteSetting.secure_media = true
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end
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it "does not return the existing upload, as duplicate uploads are allowed" do
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expect(result).not_to eq(existing_upload)
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end
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end
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end
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context "secure media functionality" do
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let(:filename) { "logo.jpg" }
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let(:file) { file_from_fixtures(filename) }
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let(:opts) { {} }
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let(:result) { UploadCreator.new(file, filename, opts).create_for(user.id) }
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context "when SiteSetting.secure_media enabled" do
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before do
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enable_s3_uploads
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SiteSetting.secure_media = true
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end
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it "sets an original_sha1 on the upload created because the sha1 column is securerandom in this case" do
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expect(result.original_sha1).not_to eq(nil)
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end
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context "when uploading in a public context (theme, site setting, avatar, custom_emoji, profile_background, card_background)" do
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def expect_no_public_context_uploads_to_be_secure
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upload = UploadCreator.new(file_from_fixtures(filename), filename, for_site_setting: true).create_for(user.id)
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expect(upload.secure).to eq(false)
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upload.destroy!
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upload = UploadCreator.new(file_from_fixtures(filename), filename, for_gravatar: true).create_for(user.id)
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expect(upload.secure).to eq(false)
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upload.destroy!
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upload = UploadCreator.new(file_from_fixtures(filename), filename, for_theme: true).create_for(user.id)
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expect(upload.secure).to eq(false)
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upload.destroy!
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upload = UploadCreator.new(file_from_fixtures(filename), filename, type: "avatar").create_for(user.id)
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expect(upload.secure).to eq(false)
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upload.destroy!
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upload = UploadCreator.new(file_from_fixtures(filename), filename, type: "custom_emoji").create_for(user.id)
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expect(upload.secure).to eq(false)
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upload.destroy!
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upload = UploadCreator.new(file_from_fixtures(filename), filename, type: "profile_background").create_for(user.id)
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expect(upload.secure).to eq(false)
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upload.destroy!
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upload = UploadCreator.new(file_from_fixtures(filename), filename, type: "card_background").create_for(user.id)
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expect(upload.secure).to eq(false)
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upload.destroy!
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end
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it "does not set the upload to secure" do
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expect_no_public_context_uploads_to_be_secure
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end
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context "when login required" do
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before do
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SiteSetting.login_required = true
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end
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it "does not set the upload to secure" do
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expect_no_public_context_uploads_to_be_secure
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end
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end
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end
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context "if type of upload is in the composer" do
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let(:opts) { { type: "composer" } }
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it "sets the upload to secure and sets the original_sha1 column, because we don't know the context of the composer" do
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expect(result.secure).to eq(true)
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expect(result.original_sha1).not_to eq(nil)
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end
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end
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context "if the upload is for a PM" do
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let(:opts) { { for_private_message: true } }
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it "sets the upload to secure and sets the original_sha1" do
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expect(result.secure).to eq(true)
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expect(result.original_sha1).not_to eq(nil)
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end
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end
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context "if the upload is for a group message" do
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let(:opts) { { for_group_message: true } }
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it "sets the upload to secure and sets the original_sha1" do
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expect(result.secure).to eq(true)
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expect(result.original_sha1).not_to eq(nil)
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end
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end
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context "if the upload is for a PM" do
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let(:opts) { { for_private_message: true } }
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it "sets the upload to secure and sets the original_sha1" do
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expect(result.secure).to eq(true)
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expect(result.original_sha1).not_to eq(nil)
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end
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end
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context "if SiteSetting.login_required" do
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before do
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SiteSetting.login_required = true
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end
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it "sets the upload to secure and sets the original_sha1" do
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expect(result.secure).to eq(true)
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expect(result.original_sha1).not_to eq(nil)
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end
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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 '#clean_svg!' do
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let(:b64) do
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Base64.encode64('<svg onmouseover="alert(alert)" />')
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end
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let(:file) do
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file = Tempfile.new
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file.write(<<~XML)
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<?xml version="1.0" encoding="UTF-8"?>
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<svg xmlns="http://www.w3.org/2000/svg" width="200px" height="200px" onload="alert(location)">
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<defs>
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<path id="pathdef" d="m0 0h100v100h-77z" stroke="#000" />
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</defs>
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<g>
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<use id="valid-use" x="123" xlink:href="#pathdef" />
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</g>
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<use id="invalid-use1" href="https://svg.example.com/evil.svg" />
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<use id="invalid-use2" xlink:href="data:image/svg+xml;base64,#{b64}" />
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</svg>
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XML
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file.rewind
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file
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end
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it 'removes event handlers' do
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begin
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UploadCreator.new(file, 'file.svg').clean_svg!
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file_content = file.read
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expect(file_content).not_to include('onload')
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expect(file_content).to include('#pathdef')
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expect(file_content).not_to include('evil.svg')
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expect(file_content).not_to include(b64)
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ensure
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file.unlink
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end
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end
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end
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def enable_s3_uploads
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SiteSetting.s3_upload_bucket = "s3-upload-bucket"
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SiteSetting.s3_access_key_id = "s3-access-key-id"
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SiteSetting.s3_secret_access_key = "s3-secret-access-key"
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SiteSetting.s3_region = 'us-west-1'
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SiteSetting.enable_s3_uploads = true
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store = FileStore::S3Store.new
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s3_helper = store.instance_variable_get(:@s3_helper)
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client = Aws::S3::Client.new(stub_responses: true)
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s3_helper.stubs(:s3_client).returns(client)
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Discourse.stubs(:store).returns(store)
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end
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end
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