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This commit is contained in:
Mikko Ahlroth 2022-10-26 11:16:32 +03:00
parent e76d91a484
commit 38a2bf14c8
1 changed files with 17 additions and 0 deletions
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17
tahnaroskakori.js
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@ -16,6 +16,10 @@ let rootURLSize = 0;
let statusEl = null;
let codeEl = null;
/**
* Returns a promise that resolves when the page DOM has been loaded.
* @returns {Promise<void>}
*/
function waitForLoad() {
return new Promise(resolve => {
// If already loaded, fire immediately
@ -28,6 +32,10 @@ function waitForLoad() {
});
}
/**
* Calculate the max length of the hash that we can use to avoid overlong URLs.
* @returns {number}
*/
function maxHashLength() {
if (rootURLSize === 0) {
const rootURL = new URL(window.location.href);
@ -38,6 +46,10 @@ function maxHashLength() {
return MAX_URL - rootURLSize - 1;
}
/**
* Compress the given data in a synchronous way (all at once) and update the status.
* @param {Uint8Array} data
*/
async function syncCompress(data) {
const compressed = compress(ENCODER.encode(data), { quality: QUALITY });
const encoded = BASE66CODEC.encode(compressed);
@ -51,6 +63,11 @@ async function syncCompress(data) {
}
}
/**
* Decompress the given data in a streaming way, with pauses between every chunk, to avoid
* the user being zip bombed with a short hash that generates gigabytes of output.
* @param {Uint8Array} data
*/
async function streamDecompress(data) {
statusEl.textContent = "Initializing decompress...";