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discord-sticker-conv
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Skye 2 years ago
commit 04f66b8504
Signed by: me
GPG Key ID: 0104BC05F41B77B8
6 changed files with 1532 additions and 0 deletions
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3
.eslintrc
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{
"extends": ["prettier", "eslint:recommended"]
}

4
.gitignore vendored
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index.js
node_modules/
output/
temp/

152
index.ts
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import renderLottie from "puppeteer-lottie";
import * as fs from "fs/promises";
import { spawn } from "node:child_process";
const API_URL = "https://discord.com/api/v9/sticker-packs";
const STICKER_SIZE = 160;
const LOTTIE_BASE_URL = "https://discord.com/stickers/{id}.json";
const PNG_BASE_URL = "https://media.discordapp.net/stickers/{id}.png";
interface StickerPacks {
sticker_packs: StickerPack[];
}
interface StickerPack {
id: string;
stickers: Sticker[];
name: string;
sku_id: string;
cover_sticker_id: string;
description: string;
banner_asset_id?: string;
}
interface Sticker {
id: string;
name: string;
tags: string;
type: number;
format_type: StickerFormat;
description: string;
asset: string;
pack_id: string;
sort_value: number;
}
enum StickerFormat {
STATIC = 1,
APNG = 2,
LOTTIE = 3,
}
async function findFilesWithPrefix(prefix: string, path: string): Promise<string[]> {
const files = await fs.readdir(path);
const filteredFiles = files.filter((file) => file.startsWith(prefix));
return filteredFiles;
}
const stickerPacks: StickerPacks = await (await fetch(API_URL)).json();
await fs.mkdir("output");
await fs.mkdir("temp");
for (const pack of stickerPacks.sticker_packs) {
for (const sticker of pack.stickers) {
switch (sticker.format_type) {
case StickerFormat.STATIC:
{
const stickerFile = await (
await fetch(PNG_BASE_URL.replace("{id}", sticker.id))
).blob();
await fs.writeFile(
`output/${sticker.id}.png`,
Buffer.from(await stickerFile.arrayBuffer())
);
}
break;
case StickerFormat.APNG:
{
const stickerFile = await (
await fetch(PNG_BASE_URL.replace("{id}", sticker.id))
).blob();
await fs.writeFile(
`temp/${sticker.id}.apng`,
Buffer.from(await stickerFile.arrayBuffer())
);
const ffmpeg = spawn("ffmpeg", [
"-v",
"error",
"-i",
`temp/${sticker.id}.apng`,
`temp/${sticker.id}-%8d.png`,
]);
ffmpeg.stdout.on("data", (data) => {
console.log(`stdout: ${data}`);
});
ffmpeg.stderr.on("data", (data) => {
console.error(`stderr: ${data}`);
});
await new Promise((resolve) => ffmpeg.on("exit", resolve));
let framerate = "";
const ffprobe = spawn("ffprobe", [
"-v",
"error",
"-select_streams",
"v",
"-of",
"default=noprint_wrappers=1:nokey=1",
"-show_entries",
"stream=r_frame_rate",
`temp/${sticker.id}.apng`
]);
ffprobe.stdout.on("data", (data) => {
console.log(`stdout: ${data}`);
framerate += data;
});
ffprobe.stderr.on("data", (data) => {
console.error(`stderr: ${data}`);
});
await new Promise((resolve) => ffprobe.on("exit", resolve));
framerate = eval(framerate);
const gifski = spawn("gifski", [
"-o",
`output/${sticker.id}.gif`,
"--fps",
framerate,
...(await findFilesWithPrefix(`${sticker.id}-`, "temp")).map(e => "temp/" + e)
]);
gifski.stdout.on("data", (data) => {
console.log(`stdout: ${data}`);
});
gifski.stderr.on("data", (data) => {
console.error(`stderr: ${data}`);
});
await new Promise((resolve) => gifski.on("exit", resolve));
}
break;
case StickerFormat.LOTTIE:
{
const stickerFile = await (
await fetch(LOTTIE_BASE_URL.replace("{id}", sticker.id))
).json();
await renderLottie({
animationData: stickerFile,
output: `output/${sticker.id}.gif`,
width: STICKER_SIZE,
height: STICKER_SIZE,
});
}
break;
}
}
}
await fs.rm("temp", { recursive: true });

23
package.json
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{
"name": "discord-sticker-conv",
"version": "1.0.0",
"main": "index.js",
"license": "CC0",
"private": true,
"type": "module",
"devDependencies": {
"@types/puppeteer-lottie": "^1.1.2",
"eslint": "^8.35.0",
"eslint-config-prettier": "^8.7.0",
"prettier": "^2.8.4",
"typescript": "^4.9.5"
},
"scripts": {
"format": "prettier --write .",
"lint": "prettier --check . && eslint .",
"start": "tsc && node index.js"
},
"dependencies": {
"puppeteer-lottie": "^1.1.2"
}
}

103
tsconfig.json
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{
"compilerOptions": {
/* Visit https://aka.ms/tsconfig to read more about this file */
/* Projects */
// "incremental": true, /* Save .tsbuildinfo files to allow for incremental compilation of projects. */
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// "disableSourceOfProjectReferenceRedirect": true, /* Disable preferring source files instead of declaration files when referencing composite projects. */
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// "disableReferencedProjectLoad": true, /* Reduce the number of projects loaded automatically by TypeScript. */
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// "lib": [], /* Specify a set of bundled library declaration files that describe the target runtime environment. */
// "jsx": "preserve", /* Specify what JSX code is generated. */
// "experimentalDecorators": true, /* Enable experimental support for TC39 stage 2 draft decorators. */
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// "jsxFactory": "", /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h'. */
// "jsxFragmentFactory": "", /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */
// "jsxImportSource": "", /* Specify module specifier used to import the JSX factory functions when using 'jsx: react-jsx*'. */
// "reactNamespace": "", /* Specify the object invoked for 'createElement'. This only applies when targeting 'react' JSX emit. */
// "noLib": true, /* Disable including any library files, including the default lib.d.ts. */
// "useDefineForClassFields": true, /* Emit ECMAScript-standard-compliant class fields. */
// "moduleDetection": "auto", /* Control what method is used to detect module-format JS files. */
/* Modules */
"module": "ES2022" /* Specify what module code is generated. */,
// "rootDir": "./", /* Specify the root folder within your source files. */
"moduleResolution": "node" /* Specify how TypeScript looks up a file from a given module specifier. */,
// "baseUrl": "./", /* Specify the base directory to resolve non-relative module names. */
// "paths": {}, /* Specify a set of entries that re-map imports to additional lookup locations. */
// "rootDirs": [], /* Allow multiple folders to be treated as one when resolving modules. */
// "typeRoots": [], /* Specify multiple folders that act like './node_modules/@types'. */
// "types": [], /* Specify type package names to be included without being referenced in a source file. */
// "allowUmdGlobalAccess": true, /* Allow accessing UMD globals from modules. */
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// "resolveJsonModule": true, /* Enable importing .json files. */
// "noResolve": true, /* Disallow 'import's, 'require's or '<reference>'s from expanding the number of files TypeScript should add to a project. */
/* JavaScript Support */
// "allowJs": true, /* Allow JavaScript files to be a part of your program. Use the 'checkJS' option to get errors from these files. */
// "checkJs": true, /* Enable error reporting in type-checked JavaScript files. */
// "maxNodeModuleJsDepth": 1, /* Specify the maximum folder depth used for checking JavaScript files from 'node_modules'. Only applicable with 'allowJs'. */
/* Emit */
// "declaration": true, /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
// "declarationMap": true, /* Create sourcemaps for d.ts files. */
// "emitDeclarationOnly": true, /* Only output d.ts files and not JavaScript files. */
// "sourceMap": true, /* Create source map files for emitted JavaScript files. */
// "outFile": "./", /* Specify a file that bundles all outputs into one JavaScript file. If 'declaration' is true, also designates a file that bundles all .d.ts output. */
// "outDir": "./", /* Specify an output folder for all emitted files. */
// "removeComments": true, /* Disable emitting comments. */
// "noEmit": true, /* Disable emitting files from a compilation. */
// "importHelpers": true, /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
// "importsNotUsedAsValues": "remove", /* Specify emit/checking behavior for imports that are only used for types. */
// "downlevelIteration": true, /* Emit more compliant, but verbose and less performant JavaScript for iteration. */
// "sourceRoot": "", /* Specify the root path for debuggers to find the reference source code. */
// "mapRoot": "", /* Specify the location where debugger should locate map files instead of generated locations. */
// "inlineSourceMap": true, /* Include sourcemap files inside the emitted JavaScript. */
// "inlineSources": true, /* Include source code in the sourcemaps inside the emitted JavaScript. */
// "emitBOM": true, /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */
// "newLine": "crlf", /* Set the newline character for emitting files. */
// "stripInternal": true, /* Disable emitting declarations that have '@internal' in their JSDoc comments. */
// "noEmitHelpers": true, /* Disable generating custom helper functions like '__extends' in compiled output. */
// "noEmitOnError": true, /* Disable emitting files if any type checking errors are reported. */
// "preserveConstEnums": true, /* Disable erasing 'const enum' declarations in generated code. */
// "declarationDir": "./", /* Specify the output directory for generated declaration files. */
// "preserveValueImports": true, /* Preserve unused imported values in the JavaScript output that would otherwise be removed. */
/* Interop Constraints */
// "isolatedModules": true, /* Ensure that each file can be safely transpiled without relying on other imports. */
// "allowSyntheticDefaultImports": true, /* Allow 'import x from y' when a module doesn't have a default export. */
"esModuleInterop": true /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */,
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"forceConsistentCasingInFileNames": true /* Ensure that casing is correct in imports. */,
/* Type Checking */
"strict": true /* Enable all strict type-checking options. */,
// "noImplicitAny": true, /* Enable error reporting for expressions and declarations with an implied 'any' type. */
// "strictNullChecks": true, /* When type checking, take into account 'null' and 'undefined'. */
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// "strictPropertyInitialization": true, /* Check for class properties that are declared but not set in the constructor. */
// "noImplicitThis": true, /* Enable error reporting when 'this' is given the type 'any'. */
// "useUnknownInCatchVariables": true, /* Default catch clause variables as 'unknown' instead of 'any'. */
// "alwaysStrict": true, /* Ensure 'use strict' is always emitted. */
// "noUnusedLocals": true, /* Enable error reporting when local variables aren't read. */
// "noUnusedParameters": true, /* Raise an error when a function parameter isn't read. */
// "exactOptionalPropertyTypes": true, /* Interpret optional property types as written, rather than adding 'undefined'. */
// "noImplicitReturns": true, /* Enable error reporting for codepaths that do not explicitly return in a function. */
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// "noUncheckedIndexedAccess": true, /* Add 'undefined' to a type when accessed using an index. */
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/* Completeness */
// "skipDefaultLibCheck": true, /* Skip type checking .d.ts files that are included with TypeScript. */
"skipLibCheck": true /* Skip type checking all .d.ts files. */
}
}

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