commit 3d23f4dcf37f5ef7248bd136a8b2f3f8596da59c Author: Mikko Ahlroth Date: Wed Oct 26 01:10:05 2022 +0300 Initial commit diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..594e819 --- /dev/null +++ b/LICENSE @@ -0,0 +1 @@ +agpl diff --git a/index.html b/index.html new file mode 100644 index 0000000..e97c17d --- /dev/null +++ b/index.html @@ -0,0 +1,30 @@ + + + + + + Tahnaroskakori + + + + + +

Tahnaroskakori

+ + + + +

+ + + + + diff --git a/licenses.txt b/licenses.txt new file mode 100644 index 0000000..465d13a --- /dev/null +++ b/licenses.txt @@ -0,0 +1,217 @@ +base-x + +The MIT License (MIT) + +Copyright (c) 2018 base-x contributors Copyright (c) 2014-2018 The Bitcoin Core developers + +Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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+ padding: 0; + + position: relative; + font-family: monospace; +} + +html, +#code { + background-color: #111; + color: #4c4; +} + +main { + position: absolute; + top: 0; + left: 0; + bottom: 0; + right: 0; + + display: flex; + flex-direction: column; + align-items: stretch; + + margin: 10px; +} + +#code { + flex-grow: 1; + + font-size: 1.2rem; + white-space: pre-wrap; + + overflow-y: auto; + resize: none; +} + +#length { + font-size: 1.2rem; +} + +footer { + display: flex; + flex-direction: row; + justify-content: space-between; + align-items: flex-end; + flex-wrap: wrap; +} diff --git a/tahnaroskakori.js b/tahnaroskakori.js new file mode 100644 index 0000000..d395096 --- /dev/null +++ b/tahnaroskakori.js @@ -0,0 +1,80 @@ +import brotliInit, { compress, decompress } from "./vendor/brotli_wasm.js"; +import base from "./vendor/base-x.js"; + +const COMPRESS_WAIT = 500; +const ENCODER = new TextEncoder(); +const DECODER = new TextDecoder(); +const BASE66 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_.~"; +const BASE66CODEC = base(BASE66); +const QUALITY = 11; +const MAX_URL = 2048; + +let brotli; +let compressTimeout = null; +let rootURLSize = 0; + +/** + * Returns a promise that is resolved when page is loaded enough to run JavaScripts. + */ +function waitForLoad() { + return new Promise(resolve => { + // If already loaded, fire immediately + if (/complete|interactive|loaded/.test(document.readyState)) { + resolve(); + } + else { + document.addEventListener('DOMContentLoaded', resolve); + } + }); +} + +function maxHashLength() { + if (rootURLSize === 0) { + const rootURL = new URL(window.location.href); + rootURL.hash = ""; + rootURLSize = rootURL.toString().length; + } + + return MAX_URL - rootURLSize - 1; +} + +async function init() { + brotli = await brotliInit(); + + const codeEl = document.getElementById("code"); + const lengthEl = document.getElementById("length"); + + codeEl.addEventListener("input", () => { + if (compressTimeout) { + clearTimeout(compressTimeout); + } + + compressTimeout = setTimeout(async () => { + const content = codeEl.value; + const compressed = compress(ENCODER.encode(content), { quality: QUALITY }); + const encoded = BASE66CODEC.encode(compressed); + + lengthEl.textContent = `Length: ${content.length} chars -> ${compressed.length} bytes -> ${encoded.length} chars`; + + if (encoded.length <= maxHashLength()) { + history.replaceState(null, "", `#${encoded}`); + } else { + lengthEl.textContent += " (TOO BIG!)"; + } + }, COMPRESS_WAIT); + }); + + if (window.location.hash.length > 1) { + try { + const bytes = BASE66CODEC.decode(window.location.hash.substring(1)); + const decompressed = decompress(bytes); + const content = DECODER.decode(decompressed); + codeEl.textContent = content; + } catch (e) { + codeEl.textContent = e.stack; + } + } +} + +await waitForLoad(); +await init(); diff --git a/vendor/base-x.js b/vendor/base-x.js new file mode 100644 index 0000000..bbe7491 --- /dev/null +++ b/vendor/base-x.js @@ -0,0 +1,120 @@ +// base-x encoding / decoding +// Copyright (c) 2018 base-x contributors +// Copyright (c) 2014-2018 The Bitcoin Core developers (base58.cpp) +// Distributed under the MIT software license, see the accompanying +// file LICENSE or http://www.opensource.org/licenses/mit-license.php. +function base(ALPHABET) { + if (ALPHABET.length >= 255) { throw new TypeError('Alphabet too long') } + var BASE_MAP = new Uint8Array(256) + for (var j = 0; j < BASE_MAP.length; j++) { + BASE_MAP[j] = 255 + } + for (var i = 0; i < ALPHABET.length; i++) { + var x = ALPHABET.charAt(i) + var xc = x.charCodeAt(0) + if (BASE_MAP[xc] !== 255) { throw new TypeError(x + ' is ambiguous') } + BASE_MAP[xc] = i + } + var BASE = ALPHABET.length + var LEADER = ALPHABET.charAt(0) + var FACTOR = Math.log(BASE) / Math.log(256) // log(BASE) / log(256), rounded up + var iFACTOR = Math.log(256) / Math.log(BASE) // log(256) / log(BASE), rounded up + function encode(source) { + if (source instanceof Uint8Array) { + } else if (ArrayBuffer.isView(source)) { + source = new Uint8Array(source.buffer, source.byteOffset, source.byteLength) + } else if (Array.isArray(source)) { + source = Uint8Array.from(source) + } + if (!(source instanceof Uint8Array)) { throw new TypeError('Expected Uint8Array') } + if (source.length === 0) { return '' } + // Skip & count leading zeroes. + var zeroes = 0 + var length = 0 + var pbegin = 0 + var pend = source.length + while (pbegin !== pend && source[pbegin] === 0) { + pbegin++ + zeroes++ + } + // Allocate enough space in big-endian base58 representation. + var size = ((pend - pbegin) * iFACTOR + 1) >>> 0 + var b58 = new Uint8Array(size) + // Process the bytes. + while (pbegin !== pend) { + var carry = source[pbegin] + // Apply "b58 = b58 * 256 + ch". + var i = 0 + for (var it1 = size - 1; (carry !== 0 || i < length) && (it1 !== -1); it1--, i++) { + carry += (256 * b58[it1]) >>> 0 + b58[it1] = (carry % BASE) >>> 0 + carry = (carry / BASE) >>> 0 + } + if (carry !== 0) { throw new Error('Non-zero carry') } + length = i + pbegin++ + } + // Skip leading zeroes in base58 result. + var it2 = size - length + while (it2 !== size && b58[it2] === 0) { + it2++ + } + // Translate the result into a string. + var str = LEADER.repeat(zeroes) + for (; it2 < size; ++it2) { str += ALPHABET.charAt(b58[it2]) } + return str + } + function decodeUnsafe(source) { + if (typeof source !== 'string') { throw new TypeError('Expected String') } + if (source.length === 0) { return new Uint8Array() } + var psz = 0 + // Skip and count leading '1's. + var zeroes = 0 + var length = 0 + while (source[psz] === LEADER) { + zeroes++ + psz++ + } + // Allocate enough space in big-endian base256 representation. + var size = (((source.length - psz) * FACTOR) + 1) >>> 0 // log(58) / log(256), rounded up. + var b256 = new Uint8Array(size) + // Process the characters. + while (source[psz]) { + // Decode character + var carry = BASE_MAP[source.charCodeAt(psz)] + // Invalid character + if (carry === 255) { return } + var i = 0 + for (var it3 = size - 1; (carry !== 0 || i < length) && (it3 !== -1); it3--, i++) { + carry += (BASE * b256[it3]) >>> 0 + b256[it3] = (carry % 256) >>> 0 + carry = (carry / 256) >>> 0 + } + if (carry !== 0) { throw new Error('Non-zero carry') } + length = i + psz++ + } + // Skip leading zeroes in b256. + var it4 = size - length + while (it4 !== size && b256[it4] === 0) { + it4++ + } + var vch = new Uint8Array(zeroes + (size - it4)) + var j = zeroes + while (it4 !== size) { + vch[j++] = b256[it4++] + } + return vch + } + function decode(string) { + var buffer = decodeUnsafe(string) + if (buffer) { return buffer } + throw new Error('Non-base' + BASE + ' character') + } + return { + encode: encode, + decodeUnsafe: decodeUnsafe, + decode: decode + } +} +export default base; diff --git a/vendor/brotli_wasm.js b/vendor/brotli_wasm.js new file mode 100644 index 0000000..98e6871 --- /dev/null +++ b/vendor/brotli_wasm.js @@ -0,0 +1,446 @@ + +let wasm; + +const heap = new Array(32).fill(undefined); + +heap.push(undefined, null, true, false); + +function getObject(idx) { return heap[idx]; } + +let WASM_VECTOR_LEN = 0; + +let cachegetUint8Memory0 = null; +function getUint8Memory0() { + if (cachegetUint8Memory0 === null || cachegetUint8Memory0.buffer !== wasm.memory.buffer) { + cachegetUint8Memory0 = new Uint8Array(wasm.memory.buffer); + } + return cachegetUint8Memory0; +} + +const cachedTextEncoder = new TextEncoder('utf-8'); + +const encodeString = (typeof cachedTextEncoder.encodeInto === 'function' + ? function (arg, view) { + return cachedTextEncoder.encodeInto(arg, view); + } + : function (arg, view) { + const buf = cachedTextEncoder.encode(arg); + view.set(buf); + return { + read: arg.length, + written: buf.length + }; + }); + +function passStringToWasm0(arg, malloc, realloc) { + + if (realloc === undefined) { + const buf = cachedTextEncoder.encode(arg); + const ptr = malloc(buf.length); + getUint8Memory0().subarray(ptr, ptr + buf.length).set(buf); + WASM_VECTOR_LEN = buf.length; + return ptr; + } + + let len = arg.length; + let ptr = malloc(len); + + const mem = getUint8Memory0(); + + let offset = 0; + + for (; offset < len; offset++) { + const code = arg.charCodeAt(offset); + if (code > 0x7F) break; + mem[ptr + offset] = code; + } + + if (offset !== len) { + if (offset !== 0) { + arg = arg.slice(offset); + } + ptr = realloc(ptr, len, len = offset + arg.length * 3); + const view = getUint8Memory0().subarray(ptr + offset, ptr + len); + const ret = encodeString(arg, view); + + offset += ret.written; + } + + WASM_VECTOR_LEN = offset; + return ptr; +} + +let cachegetInt32Memory0 = null; +function getInt32Memory0() { + if (cachegetInt32Memory0 === null || cachegetInt32Memory0.buffer !== wasm.memory.buffer) { + cachegetInt32Memory0 = new Int32Array(wasm.memory.buffer); + } + return cachegetInt32Memory0; +} + +const cachedTextDecoder = new TextDecoder('utf-8', { ignoreBOM: true, fatal: true }); + +cachedTextDecoder.decode(); + +function getStringFromWasm0(ptr, len) { + return cachedTextDecoder.decode(getUint8Memory0().subarray(ptr, ptr + len)); +} + +let heap_next = heap.length; + +function addHeapObject(obj) { + if (heap_next === heap.length) heap.push(heap.length + 1); + const idx = heap_next; + heap_next = heap[idx]; + + heap[idx] = obj; + return idx; +} + +function dropObject(idx) { + if (idx < 36) return; + heap[idx] = heap_next; + heap_next = idx; +} + +function takeObject(idx) { + const ret = getObject(idx); + dropObject(idx); + return ret; +} + +function passArray8ToWasm0(arg, malloc) { + const ptr = malloc(arg.length * 1); + getUint8Memory0().set(arg, ptr / 1); + WASM_VECTOR_LEN = arg.length; + return ptr; +} + +let stack_pointer = 32; + +function addBorrowedObject(obj) { + if (stack_pointer == 1) throw new Error('out of js stack'); + heap[--stack_pointer] = obj; + return stack_pointer; +} + +function getArrayU8FromWasm0(ptr, len) { + return getUint8Memory0().subarray(ptr / 1, ptr / 1 + len); +} +/** +* @param {Uint8Array} buf +* @param {any} raw_options +* @returns {Uint8Array} +*/ +export function compress(buf, raw_options) { + try { + const retptr = wasm.__wbindgen_add_to_stack_pointer(-16); + const ptr0 = passArray8ToWasm0(buf, wasm.__wbindgen_malloc); + const len0 = WASM_VECTOR_LEN; + wasm.compress(retptr, ptr0, len0, addBorrowedObject(raw_options)); + var r0 = getInt32Memory0()[retptr / 4 + 0]; + var r1 = getInt32Memory0()[retptr / 4 + 1]; + var r2 = getInt32Memory0()[retptr / 4 + 2]; + var r3 = getInt32Memory0()[retptr / 4 + 3]; + if (r3) { + throw takeObject(r2); + } + var v1 = getArrayU8FromWasm0(r0, r1).slice(); + wasm.__wbindgen_free(r0, r1 * 1); + return v1; + } finally { + wasm.__wbindgen_add_to_stack_pointer(16); + heap[stack_pointer++] = undefined; + } +} + +/** +* @param {Uint8Array} buf +* @returns {Uint8Array} +*/ +export function decompress(buf) { + try { + const retptr = wasm.__wbindgen_add_to_stack_pointer(-16); + const ptr0 = passArray8ToWasm0(buf, wasm.__wbindgen_malloc); + const len0 = WASM_VECTOR_LEN; + wasm.decompress(retptr, ptr0, len0); + var r0 = getInt32Memory0()[retptr / 4 + 0]; + var r1 = getInt32Memory0()[retptr / 4 + 1]; + var r2 = getInt32Memory0()[retptr / 4 + 2]; + var r3 = getInt32Memory0()[retptr / 4 + 3]; + if (r3) { + throw takeObject(r2); + } + var v1 = getArrayU8FromWasm0(r0, r1).slice(); + wasm.__wbindgen_free(r0, r1 * 1); + return v1; + } finally { + wasm.__wbindgen_add_to_stack_pointer(16); + } +} + +function isLikeNone(x) { + return x === undefined || x === null; +} +/** +*/ +export const BrotliStreamResult = Object.freeze({ + /** + * The stream is just initialized and no input is provided currently. + * `BrotliResult` uses `ResultFailure = 0`, but as we will convert `ResultFailure` to a negative actual error code, + * 0 is reused as no input currently. + * As for Brotli compressing, since offical API does not provide a way to retrieve a detailed error code, -1 is used. + */ + Init: 0, "0": "Init", ResultSuccess: 1, "1": "ResultSuccess", NeedsMoreInput: 2, "2": "NeedsMoreInput", NeedsMoreOutput: 3, "3": "NeedsMoreOutput", +}); +/** +*/ +export class CompressStream { + + static __wrap(ptr) { + const obj = Object.create(CompressStream.prototype); + obj.ptr = ptr; + + return obj; + } + + __destroy_into_raw() { + const ptr = this.ptr; + this.ptr = 0; + + return ptr; + } + + free() { + const ptr = this.__destroy_into_raw(); + wasm.__wbg_compressstream_free(ptr); + } + /** + * @param {number | undefined} quality + */ + constructor(quality) { + const ret = wasm.compressstream_new(!isLikeNone(quality), isLikeNone(quality) ? 0 : quality); + return CompressStream.__wrap(ret); + } + /** + * @param {Uint8Array | undefined} input_opt + * @param {number} output_size + * @returns {Uint8Array} + */ + compress(input_opt, output_size) { + try { + const retptr = wasm.__wbindgen_add_to_stack_pointer(-16); + var ptr0 = isLikeNone(input_opt) ? 0 : passArray8ToWasm0(input_opt, wasm.__wbindgen_malloc); + var len0 = WASM_VECTOR_LEN; + wasm.compressstream_compress(retptr, this.ptr, ptr0, len0, output_size); + var r0 = getInt32Memory0()[retptr / 4 + 0]; + var r1 = getInt32Memory0()[retptr / 4 + 1]; + var r2 = getInt32Memory0()[retptr / 4 + 2]; + var r3 = getInt32Memory0()[retptr / 4 + 3]; + if (r3) { + throw takeObject(r2); + } + var v1 = getArrayU8FromWasm0(r0, r1).slice(); + wasm.__wbindgen_free(r0, r1 * 1); + return v1; + } finally { + wasm.__wbindgen_add_to_stack_pointer(16); + } + } + /** + * @returns {number} + */ + total_out() { + const ret = wasm.compressstream_total_out(this.ptr); + return ret >>> 0; + } + /** + * @returns {number} + */ + result() { + const ret = wasm.compressstream_result(this.ptr); + return ret; + } + /** + * @returns {number} + */ + last_input_offset() { + const ret = wasm.compressstream_last_input_offset(this.ptr); + return ret >>> 0; + } +} +/** +*/ +export class DecompressStream { + + static __wrap(ptr) { + const obj = Object.create(DecompressStream.prototype); + obj.ptr = ptr; + + return obj; + } + + __destroy_into_raw() { + const ptr = this.ptr; + this.ptr = 0; + + return ptr; + } + + free() { + const ptr = this.__destroy_into_raw(); + wasm.__wbg_decompressstream_free(ptr); + } + /** + */ + constructor() { + const ret = wasm.decompressstream_new(); + return DecompressStream.__wrap(ret); + } + /** + * @param {Uint8Array} input + * @param {number} output_size + * @returns {Uint8Array} + */ + decompress(input, output_size) { + try { + const retptr = wasm.__wbindgen_add_to_stack_pointer(-16); + const ptr0 = passArray8ToWasm0(input, wasm.__wbindgen_malloc); + const len0 = WASM_VECTOR_LEN; + wasm.decompressstream_decompress(retptr, this.ptr, ptr0, len0, output_size); + var r0 = getInt32Memory0()[retptr / 4 + 0]; + var r1 = getInt32Memory0()[retptr / 4 + 1]; + var r2 = getInt32Memory0()[retptr / 4 + 2]; + var r3 = getInt32Memory0()[retptr / 4 + 3]; + if (r3) { + throw takeObject(r2); + } + var v1 = getArrayU8FromWasm0(r0, r1).slice(); + wasm.__wbindgen_free(r0, r1 * 1); + return v1; + } finally { + wasm.__wbindgen_add_to_stack_pointer(16); + } + } + /** + * @returns {number} + */ + total_out() { + const ret = wasm.decompressstream_total_out(this.ptr); + return ret >>> 0; + } + /** + * @returns {number} + */ + result() { + const ret = wasm.decompressstream_result(this.ptr); + return ret; + } + /** + * @returns {number} + */ + last_input_offset() { + const ret = wasm.decompressstream_last_input_offset(this.ptr); + return ret >>> 0; + } +} + +async function load(module, imports) { + if (typeof Response === 'function' && module instanceof Response) { + if (typeof WebAssembly.instantiateStreaming === 'function') { + try { + return await WebAssembly.instantiateStreaming(module, imports); + + } catch (e) { + if (module.headers.get('Content-Type') != 'application/wasm') { + console.warn("`WebAssembly.instantiateStreaming` failed because your server does not serve wasm with `application/wasm` MIME type. Falling back to `WebAssembly.instantiate` which is slower. Original error:\n", e); + + } else { + throw e; + } + } + } + + const bytes = await module.arrayBuffer(); + return await WebAssembly.instantiate(bytes, imports); + + } else { + const instance = await WebAssembly.instantiate(module, imports); + + if (instance instanceof WebAssembly.Instance) { + return { instance, module }; + + } else { + return instance; + } + } +} + +async function init(input) { + if (typeof input === 'undefined') { + input = new URL('brotli_wasm_bg.wasm', import.meta.url); + } + const imports = {}; + imports.wbg = {}; + imports.wbg.__wbindgen_json_serialize = function (arg0, arg1) { + const obj = getObject(arg1); + const ret = JSON.stringify(obj === undefined ? null : obj); + const ptr0 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc); + const len0 = WASM_VECTOR_LEN; + getInt32Memory0()[arg0 / 4 + 1] = len0; + getInt32Memory0()[arg0 / 4 + 0] = ptr0; + }; + imports.wbg.__wbindgen_is_undefined = function (arg0) { + const ret = getObject(arg0) === undefined; + return ret; + }; + imports.wbg.__wbindgen_is_object = function (arg0) { + const val = getObject(arg0); + const ret = typeof (val) === 'object' && val !== null; + return ret; + }; + imports.wbg.__wbindgen_string_new = function (arg0, arg1) { + const ret = getStringFromWasm0(arg0, arg1); + return addHeapObject(ret); + }; + imports.wbg.__wbg_new_693216e109162396 = function () { + const ret = new Error(); + return addHeapObject(ret); + }; + imports.wbg.__wbg_stack_0ddaca5d1abfb52f = function (arg0, arg1) { + const ret = getObject(arg1).stack; + const ptr0 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc); + const len0 = WASM_VECTOR_LEN; + getInt32Memory0()[arg0 / 4 + 1] = len0; + getInt32Memory0()[arg0 / 4 + 0] = ptr0; + }; + imports.wbg.__wbg_error_09919627ac0992f5 = function (arg0, arg1) { + try { + console.error(getStringFromWasm0(arg0, arg1)); + } finally { + wasm.__wbindgen_free(arg0, arg1); + } + }; + imports.wbg.__wbindgen_object_drop_ref = function (arg0) { + takeObject(arg0); + }; + imports.wbg.__wbindgen_throw = function (arg0, arg1) { + throw new Error(getStringFromWasm0(arg0, arg1)); + }; + + if (typeof input === 'string' || (typeof Request === 'function' && input instanceof Request) || (typeof URL === 'function' && input instanceof URL)) { + input = fetch(input); + } + + + + const { instance, module } = await load(await input, imports); + + wasm = instance.exports; + init.__wbindgen_wasm_module = module; + + return wasm; +} + +export default init; + diff --git a/vendor/brotli_wasm_bg.wasm b/vendor/brotli_wasm_bg.wasm new file mode 100644 index 0000000..3563e74 Binary files /dev/null and b/vendor/brotli_wasm_bg.wasm differ