Allow default anonymous uploads

client/css/post-upload.styl

@@ -53,6 +53,9 @@ $cancel-button-color = tomato
     .pause-remain-on-error
         margin-left: 1em
 
+    .upload-all-anonymous
+        margin-left: 1em
+
     form>.messages
         margin-top: 1em
 

client/html/post_upload.tpl

@@ -29,6 +29,14 @@
                 }) %>
             </span>
 
+            <span class='upload-all-anonymous'>
+                <%= ctx.makeCheckbox({
+                    text: 'Upload anonymously',
+                    name: 'upload-all-anonymous',
+                    checked: false,
+                }) %>
+            </span>
+
             <%= ctx.makeTextInput({placeholder: 'Common tags', id: 'common-tags', name: 'common-tags', style: 'margin-top:1em;'}) %>
 
             <input type='button' value='Cancel' class='cancel'/>

client/js/views/post_upload_view.js

@@ -311,12 +311,11 @@ class PostUploadView extends events.EventTarget {
             uploadable.safety = safetyNode.value;
         }
 
-        const anonymousNode = rowNode.querySelector(
-            ".anonymous input:checked"
-        );
-        if (anonymousNode) {
-            uploadable.anonymous = true;
+        let anonymous = this._uploadAllAnonymous?.checked;
+        if (!anonymous) {
+            anonymous = rowNode.querySelector(".anonymous input:checked");
         }
+        uploadable.anonymous = anonymous;
 
         uploadable.tags = [];
         if (this._commonTagsInputNode) {
@@ -458,6 +457,10 @@ class PostUploadView extends events.EventTarget {
         );
     }
 
+    get _uploadAllAnonymous() {
+        return this._hostNode.querySelector("form [name=upload-all-anonymous]");
+    }
+
     get _submitButtonNode() {
         return this._hostNode.querySelector("form [type=submit]");
     }