Improve zip download

* Remove jszip for zip.js which is better maintained
* Pictures keep their creation date

core/static/core/js/jszip/jszip-utils.min.js

@@ -1 +0,0 @@
-!function(e){"object"==typeof exports?module.exports=e():"function"==typeof define&&define.amd?define(e):"undefined"!=typeof window?window.JSZipUtils=e():"undefined"!=typeof global?global.JSZipUtils=e():"undefined"!=typeof self&&(self.JSZipUtils=e())}(function(){return function o(i,f,u){function s(n,e){if(!f[n]){if(!i[n]){var t="function"==typeof require&&require;if(!e&&t)return t(n,!0);if(a)return a(n,!0);throw new Error("Cannot find module '"+n+"'")}var r=f[n]={exports:{}};i[n][0].call(r.exports,function(e){var t=i[n][1][e];return s(t||e)},r,r.exports,o,i,f,u)}return f[n].exports}for(var a="function"==typeof require&&require,e=0;e<u.length;e++)s(u[e]);return s}({1:[function(e,t,n){"use strict";var u={};function r(){try{return new window.XMLHttpRequest}catch(e){}}u._getBinaryFromXHR=function(e){return e.response||e.responseText};var s="undefined"!=typeof window&&window.ActiveXObject?function(){return r()||function(){try{return new window.ActiveXObject("Microsoft.XMLHTTP")}catch(e){}}()}:r;u.getBinaryContent=function(t,n){var e,r,o,i;"function"==typeof(n=n||{})?(i=n,n={}):"function"==typeof n.callback&&(i=n.callback),i||"undefined"==typeof Promise?(r=function(e){i(null,e)},o=function(e){i(e,null)}):e=new Promise(function(e,t){r=e,o=t});try{var f=s();f.open("GET",t,!0),"responseType"in f&&(f.responseType="arraybuffer"),f.overrideMimeType&&f.overrideMimeType("text/plain; charset=x-user-defined"),f.onreadystatechange=function(e){if(4===f.readyState)if(200===f.status||0===f.status)try{r(u._getBinaryFromXHR(f))}catch(e){o(new Error(e))}else o(new Error("Ajax error for "+t+" : "+this.status+" "+this.statusText))},n.progress&&(f.onprogress=function(e){n.progress({path:t,originalEvent:e,percent:e.loaded/e.total*100,loaded:e.loaded,total:e.total})}),f.send()}catch(e){o(new Error(e),null)}return e},t.exports=u},{}]},{},[1])(1)});

core/static/core/js/zipjs/LICENSE

@@ -0,0 +1,28 @@
+BSD 3-Clause License
+
+Copyright (c) 2023, Gildas Lormeau
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

core/static/core/js/zipjs/README.md

@@ -0,0 +1,28 @@
+# Built scripts of zip.js
+
+**Warning**: These files are not compatible with ES modules, i.e. they cannot be imported with `import`. Instead, import `index.js` in the root folder of the project or one of the files prefixed with `zip-` in the [`/lib`](../lib) folder (e.g. `/lib/zip-no-worker-inflate.js`).
+
+- for production (minified):
+
+|                                | [`ZipReader`](https://gildas-lormeau.github.io/zip.js/api/classes/ZipReader.html) API | [`ZipWriter`](https://gildas-lormeau.github.io/zip.js/api/classes/ZipWriter.html) API | [`zip.fs`](https://gildas-lormeau.github.io/zip.js/api/classes/FS.html) API | Web Workers | No Web Workers | Usage                                                 |
+|--------------------------------|-----------------|-----------------|--------------|-------------|----------------|-------------------------------------------------------|
+| `zip.min.js`                   |               x |               x |              |           x |                | compression/decompression with web workers            |
+| `zip-no-worker.min.js`         |               x |               x |              |             |              x | compression/decompression without web workers         |
+| `zip-no-worker-inflate.min.js` |               x |                 |              |             |              x | decompression without web workers                     |
+| `zip-no-worker-deflate.min.js` |                 |               x |              |             |              x | compression without web workers                       |
+| `zip-full.min.js`              |               x |               x |              |           x |              x | compression/decompression with or without web workers |
+| `zip-fs.min.js`                |               x |               x |            x |           x |                | compression/decompression with web workers            |
+| `zip-fs-full.min.js`           |               x |               x |            x |           x |              x | compression/decompression with or without web workers |
+
+- for development/debugging:
+
+|                       | `zip` API | [`zip.fs`](https://gildas-lormeau.github.io/zip.js/api/classes/FS.html) API | Web Workers | No Web Workers | 
+|-----------------------|-----------|--------------|-------------|----------------|
+| `zip.js`              |         x |              |           x |                |
+| `zip-full.js`         |         x |              |           x |              x |
+| `zip-fs.js`           |         x |            x |           x |                |
+| `zip-fs-full.js`      |         x |            x |           x |              x |
+
+- `z-worker.js` can be used as a web worker script if the [Content Security Policy](https://developer.mozilla.org/docs/Web/HTTP/CSP) blocks scripts loaded with a `blob:` scheme
+- `z-worker-fflate.js` is the web worker script for using [fflate](https://gildas-lormeau.github.io/zip.js/core-api.html#alternative-codec-fflate)
+- `z-worker-pako.js` is the web worker script for using [pako](https://gildas-lormeau.github.io/zip.js/core-api.html#alternative-codec-pako)

core/templates/core/user_pictures.jinja

@@ -5,12 +5,11 @@
 {%- endblock -%}
 
 {% block additional_js %}
-  <script defer src="{{ static('core/js/jszip/jszip.min.js') }}"></script>
-  <script defer src="{{ static('core/js/jszip/jszip-utils.min.js') }}"></script>
   <script defer type="module">
     import { showSaveFilePicker } from "{{ static('core/js/native-file-system-adapter/mod.js') }}";
     window.showSaveFilePicker = showSaveFilePicker; /* Export function to normal javascript */
   </script>
+  <script defer type="text/javascript" src="{{ static('core/js/zipjs/zip-fs-full.min.js') }}"></script>
 {% endblock %}
 
 {% block title %}
@@ -54,38 +53,20 @@
     {% endfor %}
     <script>
       document.addEventListener("DOMContentLoaded", () => {
-        /* Enable button once everything is loaded and if JSZip is supported */
+        document.getElementById("download").disabled = false;
-        document.getElementById("download").disabled = !JSZip.support.blob;
       });
       async function download(url) {
 
-        let zip = new JSZip();
         let pictures = await (await fetch(url)).json();
+
         let progressBar = document.getElementById("download_progress");
-        let picturesDownloaded = 0;
         let button = document.getElementById("download");
+        let picturesDownloaded = 0;
 
         button.disabled = true;
         progressBar.value = picturesDownloaded;
         progressBar.hidden = false;
 
-        pictures.forEach(async (picture) => {
-          zip.file(
-            "IMG_" + picture.date.replaceAll(":", "_").replaceAll("-", "_") + picture.name.slice(picture.name.lastIndexOf(".")),
-            new Promise(function (resolve, reject) {
-              JSZipUtils.getBinaryContent(picture.full_size_url, (err, data) => {
-                progressBar.value = picturesDownloaded++ * 100 / (pictures.length - 1);
-                if (err) {
-                  reject(err);
-                  return;
-                }
-                resolve(data);
-              })
-            }),
-            { binary: true }
-          );
-        });
-
         let fileHandle = await window.showSaveFilePicker({
           _preferPolyfill: false,
           suggestedName: "{%- trans -%} pictures {%- endtrans -%}.zip",
@@ -94,16 +75,22 @@
         })
         let writeStream = await fileHandle.createWritable();
 
-        await zip.generateInternalStream({
+        let zipWriter = new zip.ZipWriter(writeStream);
-          type: "uint8array",
+
-          streamFiles: true,
+        async function progress() {
-          compression: "DEFLATE",
+          progressBar.value = picturesDownloaded++ * 100 / (pictures.length - 1);
-          compressionOptions: { level: 9 }
+        }
-        })
+
-          .on("data", (data) => writeStream.write(data))
+        await Promise.all(pictures.map(picture =>
-          .on("error", (err) => console.error(err))
+          zipWriter.add(
-          .on("end", () => writeStream.close())
+            "IMG_" + picture.date.replaceAll(":", "_").replaceAll("-", "_") + picture.name.slice(picture.name.lastIndexOf(".")),
-          .resume();
+            new zip.HttpReader(picture.full_size_url),
+            { level: 9, lastModDate: new Date(picture.date), onstart: progress }
+          )
+        )
+        )
+
+        await zipWriter.close();
 
         button.disabled = false;
         progressBar.hidden = true;

sith/settings.py

@@ -724,8 +724,7 @@ if SENTRY_DSN:
     )
 
 SITH_FRONT_DEP_VERSIONS = {
-    "https://github.com/Stuk/jszip-utils": "0.1.0",
+    "https://github.com/gildas-lormeau/zip.js": "2.7.47",
-    "https://github.com/Stuk/jszip": "3.10.1",
     "https://github.com/jimmywarting/native-file-system-adapter": "3.0.1",
     "https://github.com/chartjs/Chart.js/": "2.6.0",
     "https://github.com/Ionaru/easy-markdown-editor/": "2.18.0",