feat: add querystring-informed errors

KernelDeimos · KernelDeimos · commit e7c0b8320a68 · 2024-06-19T00:51:16.000-04:00
diff --git a/packages/backend/src/api/APIError.js b/packages/backend/src/api/APIError.js
@@ -16,6 +16,7 @@
  * You should have received a copy of the GNU Affero General Public License
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
+const { URLSearchParams } = require("node:url");
 const { quot } = require("../util/strutil");
 
 /**
@@ -518,6 +519,24 @@ module.exports = class APIError {
             status: this.status,
         };
     }
+    
+    querystringize (extra) {
+        return new URLSearchParams(this.querystringize_(extra));
+    }
+    
+    querystringize_ (extra) {
+        const fields = {};
+        for ( const k in this.fields ) {
+            fields[`field_${k}`] = this.fields[k];
+        }
+        return {
+            ...extra,
+            error: true,
+            message: this.message,
+            status: this.status,
+            ...fields,
+        };
+    }
 
     get message () {
         const message = typeof this._message === 'function'
diff --git a/packages/backend/src/routers/_default.js b/packages/backend/src/routers/_default.js
@@ -317,7 +317,7 @@ router.all('*', async function(req, res, next) {
             // index.js
             if(path === '/'){
                 const svc_puterHomepage = Context.get('services').get('puter-homepage');
-                return svc_puterHomepage.send(res, {
+                return svc_puterHomepage.send({ req, res }, {
                     title: app_title,
                     description: description || config.short_description,
                     short_description: config.short_description,
diff --git a/packages/backend/src/services/PuterHomepageService.js b/packages/backend/src/services/PuterHomepageService.js
@@ -32,8 +32,28 @@ class PuterHomepageService extends BaseService {
         this.service_scripts.push(url);
     }
 
-    async send (res, meta, launch_options) {
+    async send ({ req, res }, meta, launch_options) {
         const config = this.global_config;
+        
+        if (
+            req.query['puter.app_instance_id'] ||
+            req.query['error_from_within_iframe']
+        ) {
+            const easteregg = [
+                'puter in puter?',
+                'Infinite recursion!',
+                'what\'chu cookin\'?',
+            ];
+            const message = req.query.message ||
+                easteregg[
+                    Math.floor(Math.random(easteregg.length))
+                ];
+
+            return res.send(this.generate_error_html({
+                message,
+            }));
+        }
+        
         return res.send(this.generate_puter_page_html({
             env: config.env,
 
@@ -271,6 +291,38 @@ class PuterHomepageService extends BaseService {
 
     </html>`;
     };
+    
+    generate_error_html ({ message }) {
+        return `
+            <!DOCTYPE html>
+            <html>
+                <head>
+                    <style type="text/css">
+                        @font-face {
+                            font-family: 'Inter';
+                            src: url('/fonts/Inter-Thin.ttf') format('truetype');
+                            font-weight: 100;
+                        }
+                        BODY {
+                            box-sizing: border-box;
+                            margin: 0;
+                            height: 100vh;
+                            width: 100vw;
+                            background-color: #2f70ab;
+                            color: #f2f7f7;
+                            font-family: "Inter", "Helvetica Neue", HelveticaNeue, Helvetica, Arial, sans-serif;
+                            display: flex;
+                            align-items: center;
+                            justify-content: center;
+                        }
+                    </style>
+                </head>
+                <body>
+                    <h1>${message}</h1>
+                </body>
+            </html>
+        `;
+    }
 }
 
 module.exports = {
diff --git a/src/initgui.js b/src/initgui.js
@@ -286,6 +286,16 @@ window.initgui = async function(options){
 
         }
     }
+    
+    //--------------------------------------------------------------------------------------
+    // Display an error if the query parameters have an error
+    //--------------------------------------------------------------------------------------
+    if ( window.url_query_params.has('error') ) {
+        // TODO: i18n
+        await UIAlert({
+            message: window.url_query_params.get('message')
+        });
+    }
 
     //--------------------------------------------------------------------------------------
     // Get user referral code from URL query params
