Cleanup

Removed repetitive database code, and fixed README.md

README.md

@@ -1,38 +1 @@
-# create-svelte
-
-Everything you need to build a Svelte project, powered by [`create-svelte`](https://github.com/sveltejs/kit/tree/master/packages/create-svelte).
-
-## Creating a project
-
-If you're seeing this, you've probably already done this step. Congrats!
-
-```bash
-# create a new project in the current directory
-npm create svelte@latest
-
-# create a new project in my-app
-npm create svelte@latest my-app
-```
-
-## Developing
-
-Once you've created a project and installed dependencies with `npm install` (or `pnpm install` or `yarn`), start a development server:
-
-```bash
-npm run dev
-
-# or start the server and open the app in a new browser tab
-npm run dev -- --open
-```
-
-## Building
-
-To create a production version of your app:
-
-```bash
-npm run build
-```
-
-You can preview the production build with `npm run preview`.
-
-> To deploy your app, you may need to install an [adapter](https://kit.svelte.dev/docs/adapters) for your target environment.
+Backend for Sanifae, a social networking demo

src/lib/db/db.js

@@ -1,13 +1,16 @@
 const rowCount = 5;
 
+const AUTH_ACTIONS = [
+    'postCreate',
+    'vote'
+];
+
 import sqlite3 from 'sqlite3'
 import { open } from 'sqlite'
 import { hash, compare } from 'bcrypt'
-import { calcVote, calcVoteUser, heckLength, checkRegex } from '../util.js';
+import { randomBytes } from 'node:crypto';
 
-const {
-    randomBytes
-} = await import('node:crypto');
+import { calcVote, calcVoteUser, checkLength, checkRegex } from '../util.js';
 
 var db;
 async function initDb() {
@@ -23,9 +26,22 @@ async function initDb() {
     await db.run('CREATE TABLE IF NOT EXISTS user (username CHAR(64), followers INTEGER, following INTEGER, upvotes INTEGER, downvotes INTEGER, reputation REAL)');  
 }
 
+let backendProxy = async ({route, backendParams}) => {
+    if (!db) await initDb();
+
+    if (AUTH_ACTIONS.indexOf(route) != -1) {
+        var user = (await backend.token({cookies: backendParams.cookies})).data;
+        if (!user || user == '') return {'success': 'Not authorized.' };
+
+        backendParams['user'] = user;
+    }
+
+    return backend[route](backendParams);
+}
+
 var backend = {};
 
-var updateUser = async ({user}) => {
+let updateUser = async ({user}) => {
     let allPosts = await db.all('SELECT * from post WHERE username = ?', [
         user
     ]);
@@ -65,8 +81,6 @@ backend.register = async ({user, pass, pass2}) => {
 
     if (pass != pass2) return {'success': 'Passwords don\'t match.'};
 
-    if (!db) await initDb();
-
     var existingAccounts = await db.all('SELECT username FROM auth WHERE username = ?',[
         user
     ]);
@@ -85,8 +99,6 @@ backend.register = async ({user, pass, pass2}) => {
 }
 
 backend.login = async ({user, pass, cookies}) => {
-    if (!db) await initDb();
-
     var existingAccounts = await db.all('SELECT username, password FROM auth WHERE username = ?',[
         user
     ]);
@@ -116,17 +128,13 @@ backend.login = async ({user, pass, cookies}) => {
     return { success: 'Successfully logged into account.', data: token, location: '/'};
 }
 
-backend.postCreate = async ({cookies, content}) => {
-    if (!db) await initDb();
-
+backend.postCreate = async ({content}) => {
     var lengthCheck = checkLength(content,'Post content',1,10240);
 
     if (lengthCheck)
         return lengthCheck;
 
-    var user = (await backend.token({cookies})).data;
-
-    if (!user || !content || user == '') return {'success': 'Not authorized.' };
+    if (!content) return {'success': 'There is no post!' };
 
     var id = randomBytes(10).toString('hex');
 
@@ -141,8 +149,6 @@ backend.postCreate = async ({cookies, content}) => {
 }
 
 backend.postGet = async ({id}) => {
-    if (!db) await initDb();
-
     var posts = await db.all('SELECT * from post WHERE id = ?', [
         id
     ])
@@ -155,8 +161,6 @@ backend.postGet = async ({id}) => {
 }
 
 backend.userGet = async ({user}) => {
-    if (!db) await initDb();
-
     var posts = await db.all('SELECT * from user WHERE username = ?', [
         user
     ])
@@ -169,8 +173,6 @@ backend.userGet = async ({user}) => {
 }
 
 backend.postBulk = async ({page,user}) => {
-    if (!db) await initDb();
-
     var posts;
 
     if (!user) {
@@ -189,12 +191,8 @@ backend.postBulk = async ({page,user}) => {
     return {data: posts};
 }
 
-backend.vote = async ({cookies, id, vote}) => {
-    if (!db) await initDb();
-
-    var user = (await backend.token({cookies})).data;
-
-    if (!user || !id || user == '' || (vote != 'down' && vote != 'up')) return {success: 'fail' };
+backend.vote = async ({cookies, id, vote, user}) => {
+    if (!id || (vote != 'down' && vote != 'up')) return {success: 'fail' };
 
     await db.run('DELETE FROM vote WHERE username = ? AND id = ?', [
         user,
@@ -234,8 +232,6 @@ backend.vote = async ({cookies, id, vote}) => {
 }
 
 backend.token = async ({cookies}) => {
-    if (!db) await initDb();
-
     var tokenIn = cookies.get('token');
 
     var existingAccounts = await db.all('SELECT username from token WHERE token = ?',[
@@ -249,5 +245,6 @@ backend.token = async ({cookies}) => {
 }
 
 export {
+    backendProxy,
     backend
 }

src/routes/api/[route]/+server.js

@@ -1,33 +1,44 @@
-import { backend } from '../../../lib/db/db.js';
+import { backend, backendProxy } from '../../../lib/db/db.js';
+
 
 /** @type {import('./$types').RequestHandler} */
 export async function GET({ url, cookies, params }) {
-    var backendParams = {cookies};
-
-    for (const [key, value] of url.searchParams) {
-        backendParams[key] = value;
-    }
-
-    return await main({backendParams, route: params.route});
+    const formEntries = url.searchParams;
+    return await handleReq({
+        cookies,
+        params: formEntries,
+        route: params.route
+    });
 }
 
 /** @type {import('./$types').RequestHandler} */
-export async function POST({ url, cookies, request, params }) {
+export async function POST({ cookies, request, params }) {
+
+    const formEntries = (await request.formData()).entries();
+    
+    return await handleReq({
+        cookies,
+        params: formEntries,
+        route: params.route
+    });
+}
+
+async function handleReq({ cookies, params, route }) {
     var backendParams = {cookies};
 
-    for (const [key, value] of (await request.formData()).entries()) {
+    for (const [key, value] of params) {
         backendParams[key] = value;
     }
 
-    return await main({backendParams, route: params.route});
+    return await mainApi({backendParams, route: route});
 }
 
-async function main({backendParams, route}) {
+async function mainApi({backendParams, route}) {
     if (Object.keys(backend).indexOf(route) == -1) {
         return new Response(JSON.stringify({success: 'route doesn\'t exist'}));
     }
 
-    var resData = await backend[route](backendParams);
+    var resData = await backendProxy({ route, backendParams });
 
     return new Response(JSON.stringify(resData));
 };