Token kek was one of them.
Yes, deviantArt changed so that no longer works.
@mdashlw,
@stsyn
I found
the library “pngtoy” (unknown how good or not it is) and was able to use it to automate the checks, starting from an older 0.3.0 version of DAF (I also make no claims about my own code quality). You definitely have to check each section - some posts will have some sections full-quality and some sections degraded - and it’s hit-or-miss if a post will have all sections in full quality. If the original image format was a GIF or JPEG, I do not think the check can be used.
// @require https://github.com/xgds/pngtoy/raw/master/pngtoy.min.js
// This might have come from Stack Overflow? I forgot, and I didn't make a comment so it probably wasn't verbatim
function loadFileAsArrayBuffer(url){
return new Promise((resolve, reject) => {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, true);
xhr.responseType = 'arraybuffer';
xhr.onload = function(e) {
if (this.status === 200) {
resolve(this.response);
} else {
reject(this.response);
}
};
xhr.send();
})
};
// Changed lines within function unwatermark
offsetX += Math.floor(width / 4 + 0.5);
offsetY += Math.floor(height / 6 + 0.5);
// Do the diff yourself to see what changed plz
async function combine(data) {
const fullview = data.media.types.find(item => item.t === 'fullview');
const targetWidth = data.extended.originalFile.width;
const targetHeight = data.extended.originalFile.height;
const maxWidth = Math.floor(fullview.w);
const maxHeight = Math.floor(fullview.h);
let canvas = createElement('canvas', { width: targetWidth, height: targetHeight});
let ctx = canvas.getContext('2d');
const url = (oX, oY, mW, mH) => data.media.baseUri + `/v1/crop/x_${oX},y_${oY},w_${mW},h_${mH},q_100/${data.media.prettyName}-pre.png?token=` + data.media.token[0];
const pngtoy = new PngToy();
let warnings = 0;
let errors = 0;
let offsetX = 0;
let offsetY = 0;
let currentWidth = maxWidth;
let currentHeight = maxHeight;
while (offsetX < targetWidth) {
offsetY = 0;
while (offsetY < targetHeight) {
currentWidth = Math.min(maxWidth, targetWidth - offsetX);
currentHeight = Math.min(maxHeight, targetHeight - offsetY);
const arrayBuffer = await loadFileAsArrayBuffer(url(offsetX, offsetY, currentWidth, currentHeight));
pngtoy.fetch(arrayBuffer).then(() => {
const phys = pngtoy.getChunk('pHYs');
if (!phys || !phys.ppuX || !phys.ppuY)
warnings++;
else if (phys.ppuX == 1000 || phys.ppuY == 1000)
errors++;
});
// https://gist.github.com/candycode/f18ae1767b2b0aba568e
const arrayBufferView = new Uint8Array(arrayBuffer);
const blob = new Blob([arrayBufferView], { type: "image/png" });
const urlCreator = window.URL || window.webkitURL;
const imageUrl = urlCreator.createObjectURL(blob);
await (async () => {
return new Promise((resolve, reject) => {
const image = new Image;
image.onload = function() {
const temp = createElement('canvas', { width: targetWidth, height: targetHeight});
const tempCtx = temp.getContext('2d');
tempCtx.drawImage(image, offsetX, offsetY);
tempCtx.drawImage(canvas, 0, 0);
ctx = tempCtx;
canvas = temp;
image.remove();
URL.revokeObjectURL(imageUrl);
resolve();
}
image.onerror = reject;
image.src = imageUrl;
});
})();
offsetY += Math.floor(maxHeight);
}
offsetX += Math.floor(maxWidth);
}
(warnings == 0) ? warnings = '' : warnings = warnings + ' MYSTERIES! - ';
(errors == 0) ? errors = '' : errors = errors + ' LOW QUALITY!!! - ';
spawn(warnings + errors + 'Open full (Ctrl+ = download)', (event) => openOrDownload(canvas.toDataURL(), data.media.prettyName + '-full.png'));
}
