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Change media upload limits and remove client-side resizing (#23726)

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This commit is contained in:
Eugen Rochko 2023-03-25 10:00:03 +01:00 committed by GitHub
parent ef127c964a
commit 9bda933740
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9 changed files with 38 additions and 246 deletions
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13
app/javascript/mastodon/actions/compose.js
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@ -4,7 +4,6 @@ import { defineMessages } from 'react-intl';
import api from 'mastodon/api';
import { search as emojiSearch } from 'mastodon/features/emoji/emoji_mart_search_light';
import { tagHistory } from 'mastodon/settings';
import resizeImage from 'mastodon/utils/resize_image';
import { showAlert, showAlertForError } from './alerts';
import { useEmoji } from './emojis';
import { importFetchedAccounts, importFetchedStatus } from './importer';
@ -274,16 +273,13 @@ export function uploadCompose(files) {
dispatch(uploadComposeRequest());
for (const [i, f] of Array.from(files).entries()) {
for (const [i, file] of Array.from(files).entries()) {
if (media.size + i > 3) break;
resizeImage(f).then(file => {
const data = new FormData();
data.append('file', file);
// Account for disparity in size of original image and resized data
total += file.size - f.size;
return api(getState).post('/api/v2/media', data, {
api(getState).post('/api/v2/media', data, {
onUploadProgress: function({ loaded }){
progress[i] = loaded;
dispatch(uploadComposeProgress(progress.reduce((a, v) => a + v, 0), total));
@ -293,7 +289,7 @@ export function uploadCompose(files) {
// poll the server until it is, before showing the media attachment as uploaded
if (status === 200) {
dispatch(uploadComposeSuccess(data, f));
dispatch(uploadComposeSuccess(data, file));
} else if (status === 202) {
dispatch(uploadComposeProcessing());
@ -302,7 +298,7 @@ export function uploadCompose(files) {
const poll = () => {
api(getState).get(`/api/v1/media/${data.id}`).then(response => {
if (response.status === 200) {
dispatch(uploadComposeSuccess(response.data, f));
dispatch(uploadComposeSuccess(response.data, file));
} else if (response.status === 206) {
const retryAfter = (Math.log2(tryCount) || 1) * 1000;
tryCount += 1;
@ -313,7 +309,6 @@ export function uploadCompose(files) {
poll();
}
});
}).catch(error => dispatch(uploadComposeFail(error)));
}
};

189
app/javascript/mastodon/utils/resize_image.js
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@ -1,189 +0,0 @@
import EXIF from 'exif-js';
const MAX_IMAGE_PIXELS = 2073600; // 1920x1080px
const _browser_quirks = {};
// Some browsers will automatically draw images respecting their EXIF orientation
// while others won't, and the safest way to detect that is to examine how it
// is done on a known image.
// See https://github.com/w3c/csswg-drafts/issues/4666
// and https://github.com/blueimp/JavaScript-Load-Image/commit/1e4df707821a0afcc11ea0720ee403b8759f3881
const dropOrientationIfNeeded = (orientation) => new Promise(resolve => {
switch (_browser_quirks['image-orientation-automatic']) {
case true:
resolve(1);
break;
case false:
resolve(orientation);
break;
default:
// black 2x1 JPEG, with the following meta information set:
// - EXIF Orientation: 6 (Rotated 90° CCW)
const testImageURL =
'data:image/jpeg;base64,/9j/4QAiRXhpZgAATU0AKgAAAAgAAQESAAMAAAABAAYAAAA' +
'AAAD/2wCEAAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBA' +
'QEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQE' +
'BAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAf/AABEIAAEAAgMBEQACEQEDEQH/x' +
'ABKAAEAAAAAAAAAAAAAAAAAAAALEAEAAAAAAAAAAAAAAAAAAAAAAQEAAAAAAAAAAAAAAAA' +
'AAAAAEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwA/8H//2Q==';
const img = new Image();
img.onload = () => {
const automatic = (img.width === 1 && img.height === 2);
_browser_quirks['image-orientation-automatic'] = automatic;
resolve(automatic ? 1 : orientation);
};
img.onerror = () => {
_browser_quirks['image-orientation-automatic'] = false;
resolve(orientation);
};
img.src = testImageURL;
}
});
// Some browsers don't allow reading from a canvas and instead return all-white
// or randomized data. Use a pre-defined image to check if reading the canvas
// works.
const checkCanvasReliability = () => new Promise((resolve, reject) => {
switch(_browser_quirks['canvas-read-unreliable']) {
case true:
reject('Canvas reading unreliable');
break;
case false:
resolve();
break;
default:
// 2×2 GIF with white, red, green and blue pixels
const testImageURL =
'data:image/gif;base64,R0lGODdhAgACAKEDAAAA//8AAAD/AP///ywAAAAAAgACAAACA1wEBQA7';
const refData =
[255, 255, 255, 255, 255, 0, 0, 255, 0, 255, 0, 255, 0, 0, 255, 255];
const img = new Image();
img.onload = () => {
const canvas = document.createElement('canvas');
const context = canvas.getContext('2d');
context.drawImage(img, 0, 0, 2, 2);
const imageData = context.getImageData(0, 0, 2, 2);
if (imageData.data.every((x, i) => refData[i] === x)) {
_browser_quirks['canvas-read-unreliable'] = false;
resolve();
} else {
_browser_quirks['canvas-read-unreliable'] = true;
reject('Canvas reading unreliable');
}
};
img.onerror = () => {
_browser_quirks['canvas-read-unreliable'] = true;
reject('Failed to load test image');
};
img.src = testImageURL;
}
});
const getImageUrl = inputFile => new Promise((resolve, reject) => {
if (window.URL && URL.createObjectURL) {
try {
resolve(URL.createObjectURL(inputFile));
} catch (error) {
reject(error);
}
return;
}
const reader = new FileReader();
reader.onerror = (...args) => reject(...args);
reader.onload = ({ target }) => resolve(target.result);
reader.readAsDataURL(inputFile);
});
const loadImage = inputFile => new Promise((resolve, reject) => {
getImageUrl(inputFile).then(url => {
const img = new Image();
img.onerror = (...args) => reject(...args);
img.onload = () => resolve(img);
img.src = url;
}).catch(reject);
});
const getOrientation = (img, type = 'image/png') => new Promise(resolve => {
if (!['image/jpeg', 'image/webp'].includes(type)) {
resolve(1);
return;
}
EXIF.getData(img, () => {
const orientation = EXIF.getTag(img, 'Orientation');
if (orientation !== 1) {
dropOrientationIfNeeded(orientation).then(resolve).catch(() => resolve(orientation));
} else {
resolve(orientation);
}
});
});
const processImage = (img, { width, height, orientation, type = 'image/png' }) => new Promise(resolve => {
const canvas = document.createElement('canvas');
if (4 < orientation && orientation < 9) {
canvas.width = height;
canvas.height = width;
} else {
canvas.width = width;
canvas.height = height;
}
const context = canvas.getContext('2d');
switch (orientation) {
case 2: context.transform(-1, 0, 0, 1, width, 0); break;
case 3: context.transform(-1, 0, 0, -1, width, height); break;
case 4: context.transform(1, 0, 0, -1, 0, height); break;
case 5: context.transform(0, 1, 1, 0, 0, 0); break;
case 6: context.transform(0, 1, -1, 0, height, 0); break;
case 7: context.transform(0, -1, -1, 0, height, width); break;
case 8: context.transform(0, -1, 1, 0, 0, width); break;
}
context.drawImage(img, 0, 0, width, height);
canvas.toBlob(resolve, type);
});
const resizeImage = (img, type = 'image/png') => new Promise((resolve, reject) => {
const { width, height } = img;
const newWidth = Math.round(Math.sqrt(MAX_IMAGE_PIXELS * (width / height)));
const newHeight = Math.round(Math.sqrt(MAX_IMAGE_PIXELS * (height / width)));
checkCanvasReliability()
.then(getOrientation(img, type))
.then(orientation => processImage(img, {
width: newWidth,
height: newHeight,
orientation,
type,
}))
.then(resolve)
.catch(reject);
});
export default inputFile => new Promise((resolve) => {
if (!inputFile.type.match(/image.*/) || inputFile.type === 'image/gif') {
resolve(inputFile);
return;
}
loadImage(inputFile).then(img => {
if (img.width * img.height < MAX_IMAGE_PIXELS) {
resolve(inputFile);
return;
}
resizeImage(img, inputFile.type)
.then(resolve)
.catch(() => resolve(inputFile));
}).catch(() => resolve(inputFile));
});

2
app/models/concerns/attachmentable.rb
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@ -5,7 +5,7 @@ require 'mime/types/columnar'
module Attachmentable
extend ActiveSupport::Concern
MAX_MATRIX_LIMIT = 16_777_216 # 4096x4096px or approx. 16MB
MAX_MATRIX_LIMIT = 33_177_600 # 7680x4320px or approx. 847MB in RAM
GIF_MATRIX_LIMIT = 921_600 # 1280x720px
# For some file extensions, there exist different content

10
app/models/media_attachment.rb
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@ -39,11 +39,11 @@ class MediaAttachment < ApplicationRecord
MAX_DESCRIPTION_LENGTH = 1_500
IMAGE_LIMIT = 10.megabytes
VIDEO_LIMIT = 40.megabytes
IMAGE_LIMIT = 16.megabytes
VIDEO_LIMIT = 99.megabytes
MAX_VIDEO_MATRIX_LIMIT = 2_304_000 # 1920x1200px
MAX_VIDEO_FRAME_RATE = 60
MAX_VIDEO_MATRIX_LIMIT = 8_294_400 # 3840x2160px
MAX_VIDEO_FRAME_RATE = 120
IMAGE_FILE_EXTENSIONS = %w(.jpg .jpeg .png .gif .webp .heic .heif .avif).freeze
VIDEO_FILE_EXTENSIONS = %w(.webm .mp4 .m4v .mov).freeze
@ -69,7 +69,7 @@ class MediaAttachment < ApplicationRecord
IMAGE_STYLES = {
original: {
pixels: 2_073_600, # 1920x1080px
pixels: 8_294_400, # 3840x2160px
file_geometry_parser: FastGeometryParser,
}.freeze,

4
app/models/preview_card.rb
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@ -36,7 +36,7 @@ class PreviewCard < ApplicationRecord
include Attachmentable
IMAGE_MIME_TYPES = ['image/jpeg', 'image/png', 'image/gif', 'image/webp'].freeze
LIMIT = 1.megabytes
LIMIT = 2.megabytes
BLURHASH_OPTIONS = {
x_comp: 4,
@ -121,7 +121,7 @@ class PreviewCard < ApplicationRecord
def image_styles(file)
styles = {
original: {
geometry: '400x400>',
pixels: 230_400, # 640x360px
file_geometry_parser: FastGeometryParser,
convert_options: '-coalesce',
blurhash: BLURHASH_OPTIONS,

2
dist/nginx.conf vendored
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@ -39,7 +39,7 @@ server {
keepalive_timeout 70;
sendfile on;
client_max_body_size 80m;
client_max_body_size 99m;
root /home/mastodon/live/public;

1
package.json
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@ -56,7 +56,6 @@
"emoji-mart": "npm:emoji-mart-lazyload@latest",
"es6-symbol": "^3.1.3",
"escape-html": "^1.0.3",
"exif-js": "^2.3.0",
"express": "^4.18.2",
"file-loader": "^6.2.0",
"font-awesome": "^4.7.0",

8
spec/controllers/settings/profiles_controller_spec.rb
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@ -44,12 +44,4 @@ RSpec.describe Settings::ProfilesController, type: :controller do
expect(ActivityPub::UpdateDistributionWorker).to have_received(:perform_async).with(account.id)
end
end
describe 'PUT #update with oversized image' do
it 'gives the user an error message' do
allow(ActivityPub::UpdateDistributionWorker).to receive(:perform_async)
put :update, params: { account: { avatar: fixture_file_upload('4096x4097.png', 'image/png') } }
expect(response.body).to include('images are not supported')
end
end
end

5
yarn.lock
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@ -4821,11 +4821,6 @@ execa@^5.0.0:
signal-exit "^3.0.3"
strip-final-newline "^2.0.0"
exif-js@^2.3.0:
version "2.3.0"
resolved "https://registry.yarnpkg.com/exif-js/-/exif-js-2.3.0.tgz#9d10819bf571f873813e7640241255ab9ce1a814"
integrity sha1-nRCBm/Vx+HOBPnZAJBJVq5zhqBQ=
exit@^0.1.2:
version "0.1.2"
resolved "https://registry.yarnpkg.com/exit/-/exit-0.1.2.tgz#0632638f8d877cc82107d30a0fff1a17cba1cd0c"