finished cdn (POST, GET, DELETE)

5 files changed, 213 insertions, 24 deletions

diff --git a/package-lock.json b/package-lock.json
index 9d7a1f51..9b5a5310 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -129,6 +129,12 @@
       "resolved": "https://registry.npmjs.org/@types/tmp/-/tmp-0.2.0.tgz",
       "integrity": "sha512-flgpHJjntpBAdJD43ShRosQvNC0ME97DCfGvZEDlAThQmnerRXrLbX6YgzRBQCZTthET9eAWFAMaYP0m0Y4HzQ=="
     },
+    "@types/uuid": {
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/@types/uuid/-/uuid-8.3.0.tgz",
+      "integrity": "sha512-eQ9qFW/fhfGJF8WKHGEHZEyVWfZxrT+6CLIJGBcZPfxUh/+BnEj+UCGYMlr9qZuX/2AltsvwrGqp0LhEW8D0zQ==",
+      "dev": true
+    },
     "accepts": {
       "version": "1.3.7",
       "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.7.tgz",
@@ -968,6 +974,11 @@
           "requires": {
             "lru-cache": "^6.0.0"
           }
+        },
+        "uuid": {
+          "version": "8.3.0",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.0.tgz",
+          "integrity": "sha512-fX6Z5o4m6XsXBdli9g7DtWgAx+osMsRRZFKma1mIUsLCz6vRvv+pz5VNbyu9UEDzpMWulZfvpgb/cmDXVulYFQ=="
         }
       }
     },
@@ -1457,9 +1468,9 @@
       "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
     },
     "uuid": {
-      "version": "8.3.0",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.0.tgz",
-      "integrity": "sha512-fX6Z5o4m6XsXBdli9g7DtWgAx+osMsRRZFKma1mIUsLCz6vRvv+pz5VNbyu9UEDzpMWulZfvpgb/cmDXVulYFQ=="
+      "version": "8.3.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+      "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg=="
     },
     "vary": {
       "version": "1.1.2",
diff --git a/package.json b/package.json
index 847c688f..03662356 100644
--- a/package.json
+++ b/package.json
@@ -26,13 +26,15 @@
 		"lambert-db": "^1.0.5",
 		"missing-native-js-functions": "^1.0.8",
 		"multer": "^1.4.2",
-		"node-fetch": "^2.6.1"
+		"node-fetch": "^2.6.1",
+		"uuid": "^8.3.2"
 	},
 	"devDependencies": {
 		"@types/btoa": "^1.2.3",
 		"@types/express": "^4.17.9",
 		"@types/multer": "^1.4.5",
 		"@types/node": "^14.14.16",
-		"@types/node-fetch": "^2.5.7"
+		"@types/node-fetch": "^2.5.7",
+		"@types/uuid": "^8.3.0"
 	}
 }
diff --git a/src/Snowflake.js b/src/Snowflake.js
new file mode 100644
index 00000000..feb5eb41
--- /dev/null
+++ b/src/Snowflake.js
@@ -0,0 +1,145 @@
+// @ts-nocheck
+
+// github.com/discordjs/discord.js/blob/master/src/util/Snowflake.js
+"use strict";
+
+// Discord epoch (2015-01-01T00:00:00.000Z)
+const EPOCH = 1420070400000;
+let INCREMENT = 0;
+
+/**
+ * A container for useful snowflake-related methods.
+ */
+class SnowflakeUtil {
+	constructor() {
+		throw new Error(`The ${this.constructor.name} class may not be instantiated.`);
+	}
+
+	/**
+	 * A Twitter snowflake, except the epoch is 2015-01-01T00:00:00.000Z
+	 * ```
+	 * If we have a snowflake '266241948824764416' we can represent it as binary:
+	 *
+	 * 64                                          22     17     12          0
+	 *  000000111011000111100001101001000101000000  00001  00000  000000000000
+	 *       number of ms since Discord epoch       worker  pid    increment
+	 * ```
+	 * @typedef {string} Snowflake
+	 */
+
+	/**
+	 * Transforms a snowflake from a decimal string to a bit string.
+	 * @param  {Snowflake} num Snowflake to be transformed
+	 * @returns {string}
+	 * @private
+	 */
+	static idToBinary(num) {
+		let bin = "";
+		let high = parseInt(num.slice(0, -10)) || 0;
+		let low = parseInt(num.slice(-10));
+		while (low > 0 || high > 0) {
+			bin = String(low & 1) + bin;
+			low = Math.floor(low / 2);
+			if (high > 0) {
+				low += 5000000000 * (high % 2);
+				high = Math.floor(high / 2);
+			}
+		}
+		return bin;
+	}
+
+	/**
+	 * Transforms a snowflake from a bit string to a decimal string.
+	 * @param  {string} num Bit string to be transformed
+	 * @returns {Snowflake}
+	 * @private
+	 */
+	static binaryToID(num) {
+		let dec = "";
+
+		while (num.length > 50) {
+			const high = parseInt(num.slice(0, -32), 2);
+			const low = parseInt((high % 10).toString(2) + num.slice(-32), 2);
+
+			dec = (low % 10).toString() + dec;
+			num =
+				Math.floor(high / 10).toString(2) +
+				Math.floor(low / 10)
+					.toString(2)
+					.padStart(32, "0");
+		}
+
+		num = parseInt(num, 2);
+		while (num > 0) {
+			dec = (num % 10).toString() + dec;
+			num = Math.floor(num / 10);
+		}
+
+		return dec;
+	}
+
+	/**
+	 * Generates a Discord snowflake.
+	 * <info>This hardcodes the worker ID as 1 and the process ID as 0.</info>
+	 * @param {number|Date} [timestamp=Date.now()] Timestamp or date of the snowflake to generate
+	 * @returns {Snowflake} The generated snowflake
+	 */
+	static generate(timestamp = Date.now()) {
+		if (timestamp instanceof Date) timestamp = timestamp.getTime();
+		if (typeof timestamp !== "number" || isNaN(timestamp)) {
+			throw new TypeError(
+				`"timestamp" argument must be a number (received ${isNaN(timestamp) ? "NaN" : typeof timestamp})`
+			);
+		}
+		if (INCREMENT >= 4095) INCREMENT = 0;
+		const BINARY = `${(timestamp - EPOCH).toString(2).padStart(42, "0")}0000100000${(INCREMENT++)
+			.toString(2)
+			.padStart(12, "0")}`;
+		return SnowflakeUtil.binaryToID(BINARY);
+	}
+
+	/**
+	 * A deconstructed snowflake.
+	 * @typedef {Object} DeconstructedSnowflake
+	 * @property {number} timestamp Timestamp the snowflake was created
+	 * @property {Date} date Date the snowflake was created
+	 * @property {number} workerID Worker ID in the snowflake
+	 * @property {number} processID Process ID in the snowflake
+	 * @property {number} increment Increment in the snowflake
+	 * @property {string} binary Binary representation of the snowflake
+	 */
+
+	/**
+	 * Deconstructs a Discord snowflake.
+	 * @param {Snowflake} snowflake Snowflake to deconstruct
+	 * @returns {DeconstructedSnowflake} Deconstructed snowflake
+	 */
+	static deconstruct(snowflake) {
+		const BINARY = SnowflakeUtil.idToBinary(snowflake).toString(2).padStart(64, "0");
+		const res = {
+			timestamp: parseInt(BINARY.substring(0, 42), 2) + EPOCH,
+			workerID: parseInt(BINARY.substring(42, 47), 2),
+			processID: parseInt(BINARY.substring(47, 52), 2),
+			increment: parseInt(BINARY.substring(52, 64), 2),
+			binary: BINARY,
+		};
+		Object.defineProperty(res, "date", {
+			get: function get() {
+				return new Date(this.timestamp);
+			},
+			enumerable: true,
+		});
+		return res;
+	}
+
+	/**
+	 * Discord's epoch value (2015-01-01T00:00:00.000Z).
+	 * @type {number}
+	 * @readonly
+	 */
+	static get EPOCH() {
+		return EPOCH;
+	}
+}
+
+module.exports = SnowflakeUtil;
diff --git a/src/routes/attachments.ts b/src/routes/attachments.ts
new file mode 100644
index 00000000..7d09e402
--- /dev/null
+++ b/src/routes/attachments.ts
@@ -0,0 +1,50 @@
+import { Router } from "express";
+import multer from "multer";
+import Snowflake from "../Snowflake";
+
+const multer_ = multer();
+const router = Router();
+
+type Attachment = {
+	filename: string;
+	file: string;
+	id: string;
+	type: string;
+};
+
+router.post("/:filename", multer_.single("attachment"), async (req, res) => {
+	const { buffer, mimetype } = req.file;
+	const { filename } = req.params;
+	const { db } = req.server;
+
+	const File: Attachment = {
+		filename,
+		file: buffer.toString("base64"),
+		id: Snowflake.generate(),
+		type: mimetype,
+	};
+
+	if (!(await db.data.attachments.push(File))) throw new Error("Error uploading file");
+
+	return res.status(201).send({ success: true, message: "attachment uploaded", id: File.id, filename });
+});
+
+router.get("/:hash/:filename", async (req, res) => {
+	const { db } = req.server;
+	const { hash, filename } = req.params;
+
+	const File: Attachment = await db.data.attachments({ id: hash, filename: filename }).get();
+
+	res.set("Content-Type", File.type);
+	return res.send(Buffer.from(File.file, "base64"));
+});
+
+router.delete("/:hash/:filename", async (req, res) => {
+	const { hash, filename } = req.params;
+	const { db } = req.server;
+
+	await db.data.attachments({ id: hash, filename: filename }).delete();
+	return res.send({ success: true, message: "attachment deleted" });
+});
+
+export default router;
diff --git a/src/routes/attachments.ts.disabled b/src/routes/attachments.ts.disabled
deleted file mode 100644
index db1a7efc..00000000
--- a/src/routes/attachments.ts.disabled
+++ /dev/null
@@ -1,19 +0,0 @@
-import { Router } from "express";
-import multer from "multer";
-const multer_ = multer();
-
-const router = Router();
-router.post("/:file", multer_.single("attachment"), async (req, res) => {
-	const { buffer } = req.file;
-
-	res.set("Content-Type", "image/png");
-	res.send(buffer);
-});
-router.get("/:hash/:file", async (req, res) => {
-	res.send(`${req.params.hash}/${req.params.file}`);
-});
-router.delete("/:hash/:file", async (req, res) => {
-	res.send("remove");
-});
-
-export default router;