Fix remaining BS4 update, add private files feature

Signed-off-by: Knut Ahlers <knut@ahlers.me>

app.js

@@ -1,3 +1,4 @@
+const allUsersURI = 'http://acs.amazonaws.com/groups/global/AllUsers'
 const dateFormat = 'YYYY-MM-DD HH:mm:ss'
 
 // showAlert creates an alert message and displays it
@@ -47,9 +48,8 @@ function fileActionCallback(err, data) {
 }
 
 // filenameInput is the callback for changes in the filename
-function filenameInput() {
-  setEditorMime($(this).val())
-  $('#file-url').val(window.past3_config.base_url + getFilePrefix() + $(this).val())
+function filenameInput(e) {
+  updateFileURL()
 }
 
 // formatDate formats a Date() object into iso-like format
@@ -95,8 +95,26 @@ function getFile(filename) {
     Key: getFilePrefix() + filename,
   }, loadFileIntoEditor)
 
+  // Check whether the file is public
+  s3.getObjectAcl({
+    Bucket: window.past3_config.bucket,
+    Key: getFilePrefix() + filename,
+  }, (err, data) => {
+    if (err) return error(err)
+
+    for (let grant of data.Grants) {
+      if (grant.Grantee.Type == "Group" && grant.Grantee.URI == allUsersURI) {
+        $('#acl').data('public', true)
+        return updateFileURL()
+      }
+    }
+
+    $('#acl').data('public', false)
+    return updateFileURL()
+  })
+
   $('#filename').val(filename)
-  $('#filename').trigger('input')
+  updateFileURL()
 }
 
 // getFilePrefix retrieves the file prefix using the Cognito identityId
@@ -165,7 +183,17 @@ function init() {
     if (cf) cf.find('i').removeClass('fa-file').addClass('fa-file-upload')
   })
 
+  $('#acl').data('public', window.past3_config.default_public)
+
   // Set up bindings
+  $('#acl').bind('click', (e) => {
+    let el = $(e.target)
+    el.data('public', !el.data('public'))
+
+    updateFileURL()
+    return false
+  })
+
   $('#filename').bind('input', filenameInput)
 
   $('#newFile').bind('click', () => {
@@ -215,6 +243,12 @@ function init() {
       e.preventDefault()
       return false
     }
+
+    if ((e.metaKey || e.ctrlKey) && e.keyCode == 76) { // cmd + l / ctrl + l
+      $('#acl').trigger('click')
+      e.preventDefault()
+      return false
+    }
   })
 }
 
@@ -274,10 +308,12 @@ function loadFileList(err, data) {
       fileIcon = 'file'
     }
 
-    let li = $(`<a href='#${key}' class='list-group-item file-list-item'><span class='badge'></span> <i class="fas fa-fw fa-${fileIcon}"></i> ${key}</a>`)
-    li.find('.badge').text(`${formatDate(obj.LastModified)}`)
+    let li = $(`<a href='#${key}' class='list-group-item file-list-item d-flex justify-content-between align-items-center'><span><i class="fas fa-fw fa-${fileIcon}"></i> ${key}</span></a>`)
     li.data('file', key)
 
+    let badge = $(`<span class='badge badge-dark badge-pill'>${formatDate(obj.LastModified)}</span>`)
+    badge.appendTo(li)
+
     if (key === $('#filename').val()) {
       li.addClass('active')
     }
@@ -308,13 +344,16 @@ function renderButton() {
 // saveFile saves the editor content into the S3 bucket
 function saveFile(filename, content) {
   let mime = getMimeType(filename)
+  let pub = $('#acl').data('public')
+
   let s3 = new AWS.S3()
   s3.putObject({
-    ACL: window.past3_config.acl,
+    ACL: pub ? 'public-read' : 'private',
     Body: content,
     Bucket: window.past3_config.bucket,
     ContentType: mime.mime,
     Key: getFilePrefix() + filename,
+    ServerSideEncryption: 'AES256',
   }, saveFileCallback)
 }
 
@@ -339,7 +378,7 @@ function setEditorMime(filename) {
     let autoMime = getMimeType(filename)
     window.editor.setOption('mode', autoMime.mime)
     CodeMirror.autoLoadMode(window.editor, autoMime.mode)
-  }, 500)
+  }, 100)
 }
 
 // signinCallback is triggered by the Google sign-in button
@@ -355,6 +394,22 @@ function signinCallback(authResult) {
   }
 }
 
+// updateFileURL sets the public URL of the file and adjusts the ACL button
+function updateFileURL() {
+  let pub = $('#acl').data('public')
+  let filename = $('#filename').val()
+
+  setEditorMime(filename)
+
+  if (pub) {
+    $('#file-url').val(window.past3_config.base_url + getFilePrefix() + filename)
+    $('#acl').find('i').removeClass('fa-unlock').addClass('fa-lock')
+  } else {
+    $('#file-url').val('File is private, no URL available')
+    $('#acl').find('i').removeClass('fa-lock').addClass('fa-unlock')
+  }
+}
+
 
 // Initialize app on document ready
 $(() => init())

config.yml

@@ -1,9 +1,8 @@
 ---
 
-# Canned ACL for files stored into S3. One of "private, public-read,
-# public-read-write, authenticated-read, aws-exec-read, bucket-owner-read,
-# bucket-owner-full-control"
-acl: public-read
+# Default acl setting for new files: If set to true the files are created
+# using `public-read` acl, if set to false they are created with `private` acl.
+default_public: true
 
 # Base URL for the uploaded files, either S3 download URL or CloudFront
 # distribution URL to which the file path is appended for display in the
@@ -12,7 +11,7 @@ base_url: https://paste.luzifer.io/
 
 # Theme name (lowercase) of Bootswatch.com theme (Optional, when not
 # specified the original bootstrap theme is used)
-bootswatch_theme: cosmo
+bootswatch_theme: flatly
 
 # Name of the Bucket used to store the files in. The bucket needs to be
 # whitelisted for Cognito authenticated users

generate.py

@@ -7,5 +7,4 @@ config = yaml.load(open('config.yml', 'r').read())
 
 env = Environment(loader=FileSystemLoader('./'))
 template = env.get_template('index.html')
-print(template.render(config))
-
+print(template.render({'config': config}))

index.html

@@ -6,8 +6,8 @@
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <title>PaS(t)3 - S3 file editor</title>
 
-    {% if bootswatch_theme %}
-    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootswatch/3.3.7/{{ bootswatch_theme }}/bootstrap.min.css" />
+    {% if config.bootswatch_theme %}
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootswatch/4.1.3/{{ config.bootswatch_theme }}/bootstrap.min.css" />
     {% else %}
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/css/bootstrap.min.css"
           integrity="sha256-eSi1q2PG6J7g7ib17yAaWMcrr5GrtohYChqibrV7PBE=" crossorigin="anonymous" />
@@ -26,39 +26,31 @@
     </style>
 
     <!-- Sign-In with Google -->
-    <meta name="google-signin-client_id" content="{{ google_client_id }}">
+    <meta name="google-signin-client_id" content="{{ config.google_client_id }}">
     <!-- Configure PaS(t)3 -->
     <script>
-      window.past3_config = {
-        acl:              '{{ acl }}',
-        base_url:         '{{ base_url }}',
-        bucket:           '{{ bucket }}',
-        identity_pool_id: '{{ identity_pool_id }}',
-        region:           '{{ region }}',
-      };
+      window.past3_config = {{ config|tojson }};
     </script>
   </head>
   <body>
     <!-- NAV -->
-    <nav class="navbar navbar-default">
+    <nav class="navbar navbar-expand-lg navbar-dark bg-primary">
       <a class="navbar-brand" href="#">
         <i class="fas fa-fw fa-clipboard-list"></i>
         Pa<em>S(t)<strong>3</strong></em>
       </a>
     </nav>
 
-    <div class="container-fluid">
+    <div class="container-fluid mt-3">
 
       <div class="row">
 
         <div class="col-md-3">
-          <div class="panel panel-default">
-            <div class="panel-heading">
+          <div class="card">
+            <div class="card-header">
               <i class="fas fa-fw fa-file"></i> Files in your namespace
             </div>
-            <div class="panel-body">
-
-              <div class="list-group" id="fileList">
+            <div class="list-group list-group-flush" id="fileList">
               <!--
               <a href="#" class="list-group-item active">
                 <span class="badge">2006-01-02 15:04:05</span>
@@ -66,8 +58,6 @@
               </a>
               -->
             </div>
-
-            </div>
           </div>
         </div>
 
@@ -75,31 +65,42 @@
           <div class="row">
             <div class="col-md-10">
               <div class="form-group">
+
                 <div class="input-group">
-                  <div class="input-group-addon"><i class="fas fa-fw fa-tag"></i> Filename</div>
+                  <div class="input-group-prepend">
+                    <span class="input-group-text"><i class="fas fa-fw fa-tag"></i> Filename</span>
+                  </div>
                   <input type="text" class="form-control" id="filename" placeholder="untitled">
                 </div>
+
               </div>
             </div> <!-- /.col-md-10 -->
 
             <div class="col-md-2">
-              <button class="btn btn-default col-md-12" id="newFile"><i class="fas fa-fw fa-file"></i> New File</button>
+              <button class="btn btn-primary col-md-12" id="newFile" title="New File (Ctrl + N)"><i class="fas fa-fw fa-file"></i> New File</button>
             </div>
           </div>
 
           <div class="row">
             <div class="col-md-10">
               <div class="form-group">
+
                 <div class="input-group">
-                  <div class="input-group-addon"><i class="fas fa-fw fa-link"></i> File-URL</div>
-                  <input type="text" class="form-control" id="file-url" placeholder="n/a" readonly>
+                  <div class="input-group-prepend">
+                    <span class="input-group-text"><i class="fas fa-fw fa-link"></i> File-URL</span>
                   </div>
+                  <input type="text" class="form-control" id="file-url" placeholder="n/a" readonly>
+                  <div class="input-group-append">
+                    <button type="button" class="btn btn-secondary" id="acl" title="Change ACL (Ctrl + L)"><i class="fas fa-fw fa-lock"></i></button>
+                  </div>
+                </div>
+                
               </div>
             </div> <!-- /.col-md-10 -->
 
             <div class="col-md-2">
               <div class="btn-group file-mgmt" role="group">
-                <button type="button" class="btn btn-success col-md-9" id="saveFile"><i class="fas fa-fw fa-save"></i> Save</button>
+                <button type="button" class="btn btn-success col-md-9" id="saveFile" title="Save (Ctrl + S)"><i class="fas fa-fw fa-save"></i> Save</button>
                 <button type="button" class="btn btn-danger col-md-3" id="deleteFile"><i class="fas fa-fw fa-trash"></i></button>
               </div>
             </div>
@@ -112,14 +113,12 @@
           <div class="row">
             <div class="col-md-12">
 
-              <div class="panel panel-default">
-                <div class="panel-heading">
+              <div class="card">
+                <div class="card-header">
                   <i class="fas fa-fw fa-file-alt"></i> File content
                 </div>
-                <div class="panel-body">
                 <textarea style="height:100%;width:100%;" id="editor"></textarea>
               </div>
-              </div>
 
             </div>
           </div>