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Remove client-side uploaded image resizing (#3051)

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Claire 2025-04-21 23:40:17 +02:00 • committed by GitHub
parent 134597770e
commit b1e3939f91
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4 changed files with 29 additions and 236 deletions
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63
app/javascript/flavours/glitch/actions/compose.js
View file

@ -8,7 +8,6 @@ import { browserHistory } from 'flavours/glitch/components/router';
import { search as emojiSearch } from 'flavours/glitch/features/emoji/emoji_mart_search_light';
import { tagHistory } from 'flavours/glitch/settings';
import { recoverHashtags } from 'flavours/glitch/utils/hashtag';
import resizeImage from 'flavours/glitch/utils/resize_image';
import { showAlert, showAlertForError } from './alerts';
import { useEmoji } from './emojis';
@ -350,46 +349,42 @@ 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 > (uploadLimit - 1)) 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;
const data = new FormData();
data.append('file', file);
return api().post('/api/v2/media', data, {
onUploadProgress: function({ loaded }){
progress[i] = loaded;
dispatch(uploadComposeProgress(progress.reduce((a, v) => a + v, 0), total));
},
}).then(({ status, data }) => {
// If server-side processing of the media attachment has not completed yet,
// poll the server until it is, before showing the media attachment as uploaded
api().post('/api/v2/media', data, {
onUploadProgress: function({ loaded }){
progress[i] = loaded;
dispatch(uploadComposeProgress(progress.reduce((a, v) => a + v, 0), total));
},
}).then(({ status, data }) => {
// If server-side processing of the media attachment has not completed yet,
// poll the server until it is, before showing the media attachment as uploaded
if (status === 200) {
dispatch(uploadComposeSuccess(data, f));
} else if (status === 202) {
dispatch(uploadComposeProcessing());
if (status === 200) {
dispatch(uploadComposeSuccess(data, file));
} else if (status === 202) {
dispatch(uploadComposeProcessing());
let tryCount = 1;
let tryCount = 1;
const poll = () => {
api().get(`/api/v1/media/${data.id}`).then(response => {
if (response.status === 200) {
dispatch(uploadComposeSuccess(response.data, f));
} else if (response.status === 206) {
const retryAfter = (Math.log2(tryCount) || 1) * 1000;
tryCount += 1;
setTimeout(() => poll(), retryAfter);
}
}).catch(error => dispatch(uploadComposeFail(error)));
};
const poll = () => {
api().get(`/api/v1/media/${data.id}`).then(response => {
if (response.status === 200) {
dispatch(uploadComposeSuccess(response.data, file));
} else if (response.status === 206) {
const retryAfter = (Math.log2(tryCount) || 1) * 1000;
tryCount += 1;
setTimeout(() => poll(), retryAfter);
}
}).catch(error => dispatch(uploadComposeFail(error)));
};
poll();
}
});
poll();
}
}).catch(error => dispatch(uploadComposeFail(error)));
}
};

193
app/javascript/flavours/glitch/utils/resize_image.js
View file

@ -1,193 +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);
});
const resizeFile = (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));
});
export default resizeFile;

1
package.json
View file

@ -77,7 +77,6 @@
"detect-passive-events": "^2.0.3",
"emoji-mart": "npm:emoji-mart-lazyload@latest",
"escape-html": "^1.0.3",
"exif-js": "^2.3.0",
"favico.js": "^0.3.10",
"file-loader": "^6.2.0",
"fuzzysort": "^3.0.0",

8
yarn.lock
View file

@ -2900,7 +2900,6 @@ __metadata:
eslint-plugin-promise: "npm:~7.2.1"
eslint-plugin-react: "npm:^7.37.4"
eslint-plugin-react-hooks: "npm:^5.2.0"
exif-js: "npm:^2.3.0"
favico.js: "npm:^0.3.10"
file-loader: "npm:^6.2.0"
fuzzysort: "npm:^3.0.0"
@ -8567,13 +8566,6 @@ __metadata:
languageName: node
linkType: hard
"exif-js@npm:^2.3.0":
version: 2.3.0
resolution: "exif-js@npm:2.3.0"
checksum: 10c0/6bcb081cfd141147e9e13c412fa52fa8a6b915d441bdaefb8c9882058f0e12843b8249ecf6f620709ce43ef069ebdd45181176560160a066f03e2cae384a10f7
languageName: node
linkType: hard
"exit@npm:^0.1.2":
version: 0.1.2
resolution: "exit@npm:0.1.2"