Update handler to ease implementation of REST API

src/html/pages/api/users.js

@@ -1,39 +0,0 @@
-import { permissionBits } from "../../../../utils/permissions.js";
-
-export default {
-    path: "/api/users(/*)?",
-    requiresLogin: true,
-    permissions: permissionBits.ADMIN,
-    type: "post",
-    async execute(request, response) {
-        const username = request.originalUrl.split("/")[3];
-        const operation = request.originalUrl.split("/")[4];
-        const args = request.body;
-        switch (operation) {
-            case "create":
-                if (
-                    await global.database.users.findOne({
-                        where: { username: username },
-                    })
-                ) return response.redirect("/dashboard/users/create?error=User already exists");
-                console.log(`Creating user ${username}`);
-
-                let permissions = Number(args.permissions);
-                if (isNaN(permissions)) {
-                    permissions = 0;
-                    for (const permissionBit of args.permissions) {
-                        permissions += Number(permissionBit);
-                    }
-                }
-                if(!(permissions & permissionBits.DEFAULT)) permissions ^= permissionBits.DEFAULT;
-                await global.database.users.create({
-                    username: username,
-                    password: args.password,
-                    permissions: permissions,
-                });
-                break;
-            case "delete":
-                break;
-        }
-    },
-};

src/html/pages/api/users_get.js

@@ -0,0 +1,19 @@
+import { permissionBits } from "../../../../utils/permissions.js";
+
+export default {
+    path: "/api/users/:username",
+    requiresLogin: true,
+    permissions: permissionBits.ADMIN,
+    type: "get",
+    async execute(request, response) {
+        const { username } = request.params;
+        const user = await global.database.users.findOne({
+            where: { username: username },
+        });
+        if(!user || user == 0) return response.status(404).send({ message: "User does not exist" });
+        response.send({
+            username: user.username,
+            permissions: user.permissions,
+        });
+    },
+};

src/html/pages/api/users_post.js

@@ -0,0 +1,32 @@
+import { permissionBits } from "../../../../utils/permissions.js";
+
+export default {
+    path: "/api/users/:username",
+    requiresLogin: true,
+    permissions: permissionBits.ADMIN,
+    type: "post",
+    async execute(request, response) {
+        const { username } = request.params;
+        let { permissions, password } = request.body;
+        if (
+            await global.database.users.findOne({
+                where: { username: username },
+            })
+        ) return response.status(412).send({ message: "User already exists" });
+          
+        if (!(permissions & permissionBits.DEFAULT))
+            permissions ^= permissionBits.DEFAULT;
+
+        const userParams = {
+            username: username,
+            password: password,
+            permissions: permissions,
+        }
+        console.log(`Creating user ${username}`);
+        await global.database.users.create(userParams);
+        response.status(201).send({
+            username: username,
+            permissions: permissions,
+        });
+    },
+};

src/html/pages/dashboard/users_show.js

@@ -0,0 +1,42 @@
+import { permissionBits, checkPermissions } from '../../../../utils/permissions.js';
+import { readFile } from 'fs/promises';
+import { navbar } from '../../../../utils/navbar.js';
+
+export default {
+    path: "/dashboard/users/:username",
+    requiresLogin: true,
+    permissions: permissionBits.ADMIN,
+    type: "get",
+    async execute(request, response) {
+        const { username } = request.params;
+        const user = await global.database.users.findOne({ where: { username: username } });
+        if(!user) return response.redirect('/dashboard/users');
+        const html = await readFile(`${process.env.WWW}/dashboard/users/info.html`);
+        response.send(html.toString()
+            .replace('<NAVBAR>', navbar(request.session))
+            .replace('<USERINFO>', getUserHTML(user))
+        );
+    },
+}
+
+function getUserHTML(user) {
+    const userPermDict = checkPermissions(user.permissions);
+    let userPerms = [];
+    for (const [key, value] of Object.entries(userPermDict)) {
+        if(value && key != "default") userPerms.push(key);
+    };
+    let res = `
+      <table>
+        <tr>
+          <th>Identifiant</th>
+          <th>Permissions</th>
+          <th>Action</th>
+        </tr>
+        <tr>
+          <td>${user.username}</td>
+          <td>${userPerms.join(", ")}</td>
+          <td><button>Supprimer</button></td>
+        </tr>
+      </table>`;
+    return res;
+}

src/html/pages/root/login_post.js

@@ -4,10 +4,10 @@ export default {
     async execute(request, response) {
         const { username, password } = request.body;
         console.log(request.body);
-        global.database.users.findOne({ where: { username: username } }).then(function (user) {
+        global.database.users.findOne({ where: { username: username } }).then(async function (user) {
             if (!user) {
                 response.redirect('/login');
-            } else if (!user.validPassword(password)) {
+            } else if (!await user.validPassword(password)) {
                 response.redirect('/login');
             } else {
                 request.session.user = user.dataValues;

utils/handler.js

@@ -1,29 +1,89 @@
 import fs from 'fs';
 const pagesPath = "./src/html/pages/";
 
-async function deployHandler() {
-    global.handler = {
-        get: {},
-        post: {},
+async function genHandler() {
+    const handler = {
+        get: [],
+        post: [],
+        path: [],
+        delete: [],
     };
     let numberOfPages = 0;
-    const PagesCategories = fs
+    const endpointCategories = fs
         .readdirSync(pagesPath)
         .filter((file) => !file.includes("."));
-    for (const category of PagesCategories) {
-        const pageFiles = fs
+    for (const category of endpointCategories) {
+        const endpointFiles = fs
             .readdirSync(`${pagesPath}${category}`)
             .filter((file) => file.endsWith(".js"));
-        for (const file of pageFiles) {
-            const { default: page } = await import(`.${pagesPath}${category}/${file}`);
-            global.handler[page.type][page.path] = page;
+        for (const file of endpointFiles) {
+            const { default: endpoint } = await import(`.${pagesPath}${category}/${file}`);
+            handler[endpoint.type].push(endpoint);
             console.log(
-                `\x1b[32mChargement de POST: ${page.path} !\x1b[0m`,
+                `\x1b[32mChargement de POST: ${endpoint.path} !\x1b[0m`,
             );
             numberOfPages++;
-            console.log(numberOfPages + " pages chargées ! ");
+            console.log(numberOfPages + " endpoints chargés ! ");
         }
     }
+    return handler;
+}
+
+async function deployHandler(app) {
+    const handler = await genHandler();
+
+    for(const endpoint of handler.get) {
+        app.get(endpoint.path, async (request, response) => {
+            const [path, args] = parseURL(request.originalUrl);
+            console.log("GET: " + path);
+            
+            if (endpoint.requiresLogin && !request.session.user) {
+                return response.redirect("/login");
+            }
+            if (endpoint.permissions) {
+                if((endpoint.permissions & request.session.user.permissions) == 0) {
+                    return response.status(403).send("Vous n'avez pas la permission d'effectuer cette action !");
+                }
+            }
+            return await endpoint.execute(
+                request,
+                response,
+            );
+        });
+    }
+
+    for(const endpoint of handler.post) {
+        app.post(endpoint.path, async (request, response) => {
+            console.log("POST: " + request.originalUrl);
+            
+            if (endpoint.requiresLogin && !request.session.user) {
+                return response.redirect("/login");
+            }
+            if (endpoint.permissions) {
+                if((endpoint.permissions & request.session.user.permissions) == 0) {
+                    return response.status(403).send("Vous n'avez pas la permission d'effectuer cette action !");
+                }
+            }
+            return await endpoint.execute(
+                request,
+                response,
+            );
+        });
+    }
+}
+
+function parseURL(URL) {
+    const spURL = URL.split("?");
+    const path = spURL[0];
+    if(!spURL[1]) return [path, {}];
+
+    const args = {};
+    for (let i = 0; i < spURL[1].split("=").length; i+=2) {
+        const key = spURL[1].split("=")[i];
+        const val = spURL[1].split("=")[i+1];
+        args[key] = val;
+    }
+    return [path, args];
 }
 
 export { deployHandler };

web.js

@@ -19,48 +19,7 @@ async function launchWeb() {
     app.use("/assets", express.static(`${process.env.WWW}/assets`));
     app.use(favicon(`${process.env.WWW}/assets/images/favicon.ico`));
 
-    await deployHandler();
-
-    app.post("*", async (request, response) => {
-        console.log("POST: " + request.originalUrl);
-        let handled = global.handler.post[request.originalUrl];
-
-        if(!handled) for(const path of Object.keys(global.handler.post)) {
-            if(new RegExp(path).test(request.originalUrl)) handled = global.handler.post[path];
-        }
-
-        if (!handled) return console.log(request.originalUrl);
-        if (handled.requiresLogin && !request.session.user) {
-            return response.redirect("/login");
-        }
-        if (handled.permissions) {
-            if((handled.permissions & request.session.user.permissions) == 0) return response.status(403).send("Vous n'avez pas la permission d'effectuer cette action !");
-        }
-        return await handled.execute(
-            request,
-            response,
-        );
-    });
-
-    app.get("*", async (request, response) => {
-        const [path, args] = parseURL(request.originalUrl);
-        const argNum = Object.keys(args).length;
-        console.log(`GET:  ${path} ${argNum > 0 ? '('+argNum+' args)' : ""}`);
-        let handled = global.handler.get[path];
-
-        if(!handled) for(const path of Object.keys(global.handler.get)) {
-            if(new RegExp(path).test(request.originalUrl)) handled = global.handler.get[path];
-        }
-
-        if (!handled) return;
-        if (handled.requiresLogin && !request.session.user) {
-            return response.redirect("/login");
-        }
-        if (handled.permissions) {
-            if((handled.permissions & request.session.user.permissions) == 0) return response.status(403).send("Vous n'avez pas la permission d'accéder cette page !");
-        }
-        return await handled.execute(request, response, args);
-    });
+    await deployHandler(app);
 
     const PORT = process.env.PORT || 3000;
     app.listen(PORT, () => {
@@ -68,18 +27,4 @@ async function launchWeb() {
     });
 }
 
-function parseURL(URL) {
-    const spURL = URL.split("?");
-    const path = spURL[0];
-    if(!spURL[1]) return [path, {}];
-
-    const args = {};
-    for (let i = 0; i < spURL[1].split("=").length; i+=2) {
-        const key = spURL[1].split("=")[i];
-        const val = spURL[1].split("=")[i+1];
-        args[key] = val;
-    }
-    return [path, args];
-}
-
 export { launchWeb };

www/dashboard/users/create.html

@@ -78,15 +78,36 @@ a {
 }
 </style>
 <script>
-    function setAction(form) {
-        form.action = `/api/users/${form.username.value}/create`;
-        return true;
+    function createUserFromForm() {
+        const form = document.getElementById("userCreateForm");
+        let perms = 1;
+        for(const node of form.querySelectorAll('input[name="permissions"]')) {
+            perms += node.checked ? Number(node.value) : 0;
+        }
+        console.log(perms)
+        fetch(`/api/users/${form.username.value}`, {
+            method: "POST",
+            body: JSON.stringify({
+                username: form.username.value,
+                permissions: perms,
+                password: form.password.value,
+            }),
+            headers: {
+                "Content-type": "application/json; charset=UTF-8"
+            }
+        })
+        .then(async (response) => {
+            const res = await response.json();
+            console.log(res);
+            if(!response.ok) return alert(res.message);
+            window.location = `/dashboard/users/${res.username}`;
+        });
     }
 </script>
 </head>
 <body>
 <NAVBAR>
-<form action="/api/users/:username/create" method="post" onsubmit="return setAction(this)">
+<form action="javascript:createUserFromForm()" id="userCreateForm">
   <div class="container">
     <h1>Création de compte</h1>
     <p>Formulaire de création de compte.</p>

www/dashboard/users/info.html

@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <title>Utilisateurs</title>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <style>
+  table, th, td {
+    border:1px solid black;
+  }
+  </style>
+</head>
+<body>
+<NAVBAR>
+<USERINFO>
+</body>
+</html>