added redirect function

Author: wassfila

src/libs/redirect.js

@@ -0,0 +1,17 @@
+import {config} from '@/client_config.js'
+
+export async function redirectToFullUrl() {
+    const message_el = document.getElementById("message_404")
+    message_el.innerText = "Redirecting"
+
+    const response = await fetch(`${config.base}/api/redirect`)
+    const redirects = await response.json()
+    let pathname = window.location.pathname.substring(1)
+    if (pathname in redirects) {
+            window.location.href = redirects[pathname];
+    }else{
+        message_el.innerText = "Page not found"
+    }
+}
+
+document.addEventListener('DOMContentLoaded', redirectToFullUrl);

src/pages/404.astro

@@ -0,0 +1,9 @@
+---
+import Layout from "@/layout/Layout.astro"
+
+---
+<Layout title={"404"} headings={[]} >
+    <div id="message_404"></div>
+</Layout>
+
+<script src="../libs/redirect.js" />

src/pages/api/redirect.js

@@ -0,0 +1,16 @@
+import {load_json_abs} from '@/libs/utils.js'
+import { config } from '@/config'
+import {join} from 'path'
+
+export async function GET(){
+    const documents = await load_json_abs(join(config.collect_content.outdir,'document_list.json'))
+    const redirects = documents.reduce((acc, doc) => {
+        acc[doc.sid] = doc.url;
+        return acc;
+    }, {});
+        return new Response(
+            JSON.stringify(redirects), {
+            status: 200,
+            headers: {'Content-Type': 'json'}
+        });
+}

src/pages/assets/[...path].js

@@ -1,6 +1,6 @@
-import { createReadStream } from 'fs';
+import { createReadStream } from 'fs'
 import {resolve,join} from 'path'
-import { config } from "@/config";
+import { config } from '@/config'
 import {load_json_abs} from '@/libs/utils.js'
 import {file_mime} from '@/libs/assets.js'
 import {remove_base} from '@/libs/assets.js'