fup: implement frontend bits

web/fup/fupstatic/css/base.css

@@ -3,3 +3,135 @@
  *
  * SPDX-License-Identifier: Apache-2.0
  */
+
+html {
+  --colour-primary: #32681d;
+  --colour-primary-light: #619648;
+  --colour-primary-dark: #003d00;
+
+  --colour-text-primary: #ffffff;
+  --colour-text-primary-dark: #ffffff;
+  --colour-text-primary-light: #000000;
+
+  --colour-secondary: #cddc39;
+  --colour-secondary-light: #ffff6e;
+  --colour-secondary-dark: #99aa00;
+
+  --colour-text-secondary: #424242;
+  --colour-text-secondary-dark: #424242;
+  --colour-text-secondary-light: #424242;
+
+  --colour-canvas: #e1e2e1;
+  --colour-canvas-light: #f5f5f6;
+  --colour-text: #424242;
+}
+
+html {
+  color: var(--colour-text);
+  background: var(--colour-canvas);
+  font-family: "Roboto Sans", sans-serif;
+}
+
+body:not(.has-js) .with-js, body.has-js .no-js {
+  display: none;
+}
+
+body {
+  max-width: 800px;
+  margin: 0 auto;
+}
+
+header {
+  border-bottom: 1px solid var(--colour-primary-dark);
+  display: flex;
+  align-items: center;
+}
+
+header > h1 {
+  flex-grow: 1;
+}
+
+header > h1 > a, header > h1 > a:visited {
+  color: var(--colour-text);
+  text-decoration: none;
+}
+
+nav a:after {
+  display: inline;
+  content: "|";
+  padding-left: 0.3em;
+  opacity: 0.6;
+}
+
+nav a:last-of-type:after {
+  display: none;
+}
+
+a {
+  color: var(--colour-primary);
+}
+
+a:visited {
+  color: var(--colour-primary-dark);
+}
+
+header, .container {
+  padding: 10px 30px;
+}
+
+h1 {
+  font-family: "Roboto Mono", monospace;
+}
+
+.dropbox {
+  background: var(--colour-canvas-light);
+  height: 10rem;
+  text-align: center;
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+}
+
+.upload-list {
+  padding: 0;
+}
+
+.upload-list-element {
+  position: relative;
+  display: block;
+  border: 1px solid var(--colour-primary-dark);
+  margin-top: 0.4rem;
+  padding: 0 10px;
+
+  background: var(--colour-primary-light);
+}
+
+.upload-list-element, .upload-list-element a, .upload-list-element a:visited {
+  color: var(--colour-text-primary-light);
+}
+
+.upload-list-bar {
+  overflow: hidden;
+  position: absolute;
+  top: -1px;
+  left: 0;
+  background: var(--colour-primary-dark);
+  height: calc(100% + 2px);
+  width: 0;
+}
+
+.upload-list-bar-container {
+  padding: 1px 10px;
+  white-space: nowrap;
+}
+
+.upload-list-bar, .upload-list-bar a, .upload-list-bar a:visited {
+  color: var(--colour-text-primary-dark);
+}
+
+.uploaded {
+  background: var(--colour-primary-dark);
+}
+.uploaded a, .uploaded a:visited {
+  color: var(--colour-text-primary-dark);
+}

web/fup/fupstatic/js/base.js

@@ -1,3 +1,121 @@
 // SPDX-FileCopyrightText: 2021 Luke Granger-Brown <depot@lukegb.com>
 //
 // SPDX-License-Identifier: Apache-2.0
+
+document.body.classList.add('has-js');
+
+if (document.body.classList.contains('upload-page')) {
+  const uploadListEl = document.body.querySelector('.upload-list');
+  const inputFileEl = document.body.querySelector('#file');
+  const expiryEl = document.body.querySelector('#expiry');
+
+  const uploadFile = (file, expiry) => {
+    const progressEl = document.createElement('li');
+    progressEl.classList.add('upload-list-element');
+    uploadListEl.appendChild(progressEl);
+
+    const bgEl = document.createElement('div');
+    bgEl.classList.add('upload-list-background');
+    progressEl.appendChild(bgEl);
+
+    const bgFilenameEl = document.createElement('span');
+    bgFilenameEl.classList.add('upload-list-filename');
+    bgFilenameEl.textContent = file.name;
+    bgEl.appendChild(bgFilenameEl);
+
+    const bgSpacerNode = document.createTextNode(' ');
+    bgEl.appendChild(bgSpacerNode);
+
+    const bgPercentEl = document.createElement('span');
+    bgPercentEl.classList.add('upload-list-progress');
+    bgPercentEl.textContent = file.size == 0 ? '(unknown)' : '(0%)';
+    bgEl.appendChild(bgPercentEl);
+
+    const barEl = document.createElement('div');
+    barEl.classList.add('upload-list-bar');
+    progressEl.appendChild(barEl);
+
+    const barContainerEl = document.createElement('div');
+    barContainerEl.classList.add('upload-list-bar-container');
+    barEl.appendChild(barContainerEl);
+
+    const barFilenameEl = document.createElement('span');
+    barFilenameEl.classList.add('upload-list-filename');
+    barFilenameEl.textContent = file.name;
+    barContainerEl.appendChild(barFilenameEl);
+
+    const barSpacerNode = document.createTextNode(' ');
+    barContainerEl.appendChild(barSpacerNode);
+
+    const barPercentEl = document.createElement('span');
+    barPercentEl.classList.add('upload-list-progress');
+    barPercentEl.textContent = file.size == 0 ? '(unknown)' : '(0%)';
+    barContainerEl.appendChild(barPercentEl);
+
+    const setPercentText = (txt) => {
+      barPercentEl.textContent = txt;
+      bgPercentEl.textContent = txt;
+    };
+    const setPercentPercent = (loaded, total) => {
+      const pct = Math.floor((loaded * 1000) / total) / 10;
+      setPercentText(`(${pct}%)`);
+      barEl.style.width = `${pct}%`;
+    };
+
+    const hdrs = new Headers();
+    hdrs.set('Content-Type', file.type);
+    hdrs.set('Accept', 'application/json');
+
+    const xhr = new XMLHttpRequest();
+    xhr.upload.addEventListener('progress', (ev) => {
+      if (!ev.lengthComputable) {
+        setPercentText(`(unknown: ${ev.loaded} bytes)`);
+      } else {
+        setPercentPercent(ev.loaded, ev.total);
+      }
+    });
+    xhr.upload.addEventListener('load', (ev) => {
+      setPercentPercent(1, 1);
+    });
+    xhr.addEventListener('error', (ev) => {
+      setPercentText(`(error: ${ev.message})`);
+    });
+    xhr.addEventListener('abort', (ev) => {
+      setPercentText(`(aborted)`);
+    });
+    xhr.addEventListener('load', (ev) => {
+      if (ev.status < 200 || ev.status >= 300) {
+        setPercentText(`(error: HTTP status ${ev.status} - ${ev.message})`);
+        return;
+      }
+
+      const respJSON = xhr.response;
+
+      while (progressEl.firstChild) {
+        progressEl.removeChild(progressEl.firstChild);
+      }
+      progressEl.classList.add('uploaded');
+
+      const linkEl = document.createElement('a');
+      linkEl.setAttribute('href', respJSON.display_url);
+      linkEl.textContent = file.name;
+      progressEl.appendChild(linkEl);
+    });
+    xhr.responseType = 'json';
+    xhr.open('PUT', `/upload/${encodeURIComponent(file.name)}`);
+    xhr.setRequestHeader('Content-Type', file.type);
+    xhr.setRequestHeader('Accept', 'application/json');
+    if (expiry !== "") {
+      xhr.setRequestHeader('Fup-Expiry', expiry);
+    }
+    xhr.send(file);
+  };
+
+  inputFileEl.addEventListener('change', (ev) => {
+    for (let i = 0; i < inputFileEl.files.length; i++) {
+      const file = inputFileEl.files[i];
+
+      uploadFile(file, expiryEl.value);
+    }
+  });
+}

web/fup/fupstatic/tmpl/404.html

@@ -5,6 +5,6 @@ SPDX-License-Identifier: Apache-2.0
 */}}
 
 {{define "main"}}
-<h1>404 Not Found</h1>
+<h2>404 Not Found</h2>
 <p>Sorry. :(</p>
 {{end}}

web/fup/fupstatic/tmpl/base.html

@@ -10,9 +10,20 @@ SPDX-License-Identifier: Apache-2.0
 	<meta charset="utf-8">
 	<link rel="stylesheet" type="text/css" href="{{static "css/reset.min.css"}}">
 	<link rel="stylesheet" type="text/css" href="{{static "css/base.css"}}">
+	<link rel="preconnect" href="https://fonts.gstatic.com">
+	<link href="https://fonts.googleapis.com/css2?family=Roboto&family=Roboto+Mono&display=swap" rel="stylesheet">
 	<script type="module" src="{{ static "js/base.js"}}"></script>
 </head>
-<body>
+<body class="{{block "extra_body_classes" .}}{{end}}">
+	<header>
+		<h1><a href="{{app "/"}}">lukegb</a></h1>
+		<nav>
+			<a href="/">Upload</a>
+			<a href="/paste">Paste</a>
+		</nav>
+	</header>
+	<div class="container">
 		{{block "main" .}}{{end}}
+	</div>
 </body>
 </html>

web/fup/fupstatic/tmpl/index.html

@@ -5,5 +5,33 @@ SPDX-License-Identifier: Apache-2.0
 */}}
 
 {{define "main"}}
-<h1>Hello</h1>
+<label for="file">
+  <div class="dropbox with-js">
+    Click or drop to upload files
+  </div>
+</label>
+
+<form action="{{app "upload"}}" method="POST" enctype="multipart/form-data">
+  <div class="no-js">
+    <label for="file">Select file:</label> <input type="file" name="file" id="file" multiple> <input type="submit" value="Upload!">
+  </div>
+
+  <label for="expiry">Expiry:</label>
+  <select name="expiry" id="expiry">
+    <option value="" selected>never</option>
+    <option value="1m">1 minute</option>
+    <option value="5m">5 minutes</option>
+    <option value="1h">1 hour</option>
+    <option value="24h">1 day</option>
+    <option value="168h">1 week</option>
+    <option value="672h">4 weeks</option>
+    <option value="8760h">1 year</option>
+  </select>
+</form>
+
+<ol class="upload-list"></ol>
 {{end}}
+
+{{define "extra_body_classes" -}}
+upload-page
+{{- end}}