feat(pad-settings): added possibility to delete pad by the creator

src/locales/de.json

@@ -82,7 +82,9 @@
 	"pad.settings.colorcheck": "Autorenfarben anzeigen",
 	"pad.settings.linenocheck": "Zeilennummern",
 	"pad.settings.rtlcheck": "Inhalt von rechts nach links lesen?",
-	"pad.settings.fontType": "Schriftart:",
+  "pad.settings.delete": "Pad löschen",
+  "pad.delete.confirm": "Möchtest du dieses Pad wirklich löschen?",
+  "pad.settings.fontType": "Schriftart:",
 	"pad.settings.fontType.normal": "Normal",
 	"pad.settings.language": "Sprache:",
 	"pad.settings.about": "Über",

src/locales/en.json

@@ -72,6 +72,8 @@
   "pad.settings.fontType": "Font type:",
   "pad.settings.fontType.normal": "Normal",
   "pad.settings.language": "Language:",
+  "pad.settings.deletePad": "Delete Pad",
+  "pad.delete.confirm": "Do you really want to delete this pad?",
   "pad.settings.about": "About",
   "pad.settings.poweredBy": "Powered by",
 

src/node/handler/PadMessageHandler.ts

@@ -43,7 +43,7 @@ import {RateLimiterMemory} from 'rate-limiter-flexible';
 import {ChangesetRequest, PadUserInfo, SocketClientRequest} from "../types/SocketClientRequest";
 import {APool, AText, PadAuthor, PadType} from "../types/PadType";
 import {ChangeSet} from "../types/ChangeSet";
-import {ChatMessageMessage, ClientReadyMessage, ClientSaveRevisionMessage, ClientSuggestUserName, ClientUserChangesMessage, ClientVarMessage, CustomMessage, UserNewInfoMessage} from "../../static/js/types/SocketIOMessage";
+import {ChatMessageMessage, ClientReadyMessage, ClientSaveRevisionMessage, ClientSuggestUserName, ClientUserChangesMessage, ClientVarMessage, CustomMessage, PadDeleteMessage, UserNewInfoMessage} from "../../static/js/types/SocketIOMessage";
 import {Builder} from "../../static/js/Builder";
 const webaccess = require('../hooks/express/webaccess');
 const { checkValidRev } = require('../utils/checkValidRev');
@@ -211,6 +211,45 @@ exports.handleDisconnect = async (socket:any) => {
   });
 };
 
+
+const handlePadDelete = async (socket: any, padDeleteMessage: PadDeleteMessage) => {
+  const session = sessioninfos[socket.id];
+  if (!session || !session.author || !session.padId) throw new Error('session not ready');
+  if (await padManager.doesPadExist(padDeleteMessage.data.padId)) {
+    const retrievedPad = await padManager.getPad(padDeleteMessage.data.padId)
+    // Only the one doing the first revision can delete the pad, otherwise people could troll a lot
+    const firstContributor = await retrievedPad.getRevisionAuthor(0)
+    if (session.author === firstContributor) {
+      retrievedPad.remove()
+    } else {
+
+      type ShoutMessage = {
+        message: string,
+        sticky: boolean,
+      }
+
+      const messageToShout: ShoutMessage = {
+        message: 'You are not the creator of this pad, so you cannot delete it',
+        sticky: false
+      }
+      const messageToSend = {
+        type: "COLLABROOM",
+        data: {
+          type: "shoutMessage",
+          payload: {
+            message: messageToShout,
+            timestamp: Date.now()
+          }
+        }
+      }
+      socket.emit('shout',
+        messageToSend
+      )
+    }
+  }
+}
+
+
 /**
  * Handles a message from a user
  * @param socket the socket.io Socket object for the client
@@ -350,6 +389,7 @@ exports.handleMessage = async (socket:any, message: ClientVarMessage) => {
               stats.counter('pendingEdits').inc();
               await padChannels.enqueue(thisSession.padId, {socket, message});
               break;
+            case 'PAD_DELETE': await handlePadDelete(socket, message.data as unknown as PadDeleteMessage); break;
             case 'USERINFO_UPDATE': await handleUserInfoUpdate(socket, message as unknown as UserNewInfoMessage); break;
             case 'CHAT_MESSAGE': await handleChatMessage(socket, message as unknown as ChatMessageMessage); break;
             case 'GET_CHAT_MESSAGES': await handleGetChatMessages(socket, message); break;

src/static/js/pad_editor.ts

@@ -75,11 +75,20 @@ const padeditor = (() => {
         padutils.setCheckbox($('#options-rtlcheck'), ('rtl' === html10n.getDirection()));
       });
 
+
+
       // font family change
       $('#viewfontmenu').on('change', () => {
         pad.changeViewOption('padFontFamily', $('#viewfontmenu').val());
       });
 
+      // delete pad
+      $('#delete-pad').on('click', () => {
+        if (window.confirm(html10n.get('pad.delete.confirm'))) {
+          pad.collabClient.sendMessage({type: 'PAD_DELETE', data:{padId: pad.getPadId()}});
+        }
+      })
+
       // Language
       html10n.bind('localized', () => {
         $('#languagemenu').val(html10n.getLanguage());

src/static/js/types/SocketIOMessage.ts

@@ -192,6 +192,14 @@ export type ClientSaveRevisionMessage = {
   type: 'SAVE_REVISION'
 }
 
+
+export type PadDeleteMessage = {
+  type: 'PAD_DELETE'
+  data: {
+    padId: string
+  }
+}
+
 export type GetChatMessageMessage = {
   type: 'GET_CHAT_MESSAGES',
   start: number,
@@ -283,7 +291,7 @@ export type ChangesetRequestMessage = {
 
 export type CollabroomMessage = {
   type: 'COLLABROOM'
-  data: ClientSendUserInfoUpdate | ClientUserChangesMessage | ChatMessageMessage | GetChatMessageMessage | ClientSaveRevisionMessage | ClientMessageMessage
+  data: ClientSendUserInfoUpdate | ClientUserChangesMessage | ChatMessageMessage | GetChatMessageMessage | ClientSaveRevisionMessage | ClientMessageMessage | PadDeleteMessage
 }
 
 export type ClientVarMessage =  | ClientVarData | ClientDisconnectedMessage | ClientReadyMessage| ChangesetRequestMessage | CollabroomMessage | CustomMessage

src/static/skins/colibris/src/components/popup.css

@@ -81,3 +81,7 @@
 .skin-variant-container {
   text-transform: capitalize;
 }
+
+#delete-pad {
+  background-color: #ff7b72;
+}

src/templates/pad.html

@@ -164,10 +164,10 @@ <h2 data-l10n-id="pad.settings.myView"></h2>
             </p>
             <% e.end_block(); %>
           </div>
-
+          <button data-l10n-id="pad.settings.delete" id="delete-pad">Delete pad</button>
           <h2 data-l10n-id="pad.settings.about">About</h2>
           <span data-l10n-id="pad.settings.poweredBy">Powered by</span>
-          <a href="https://etherpad.org">Etherpad</a>
+          <a href="https://etherpad.org" target="_blank" referrerpolicy="no-referrer" rel="noopener">Etherpad</a>
           <% if (settings.exposeVersion) { %>(commit <%=settings.getGitCommit()%>)<% } %>
       </div></div>
 

src/tests/backend/common.ts

@@ -250,6 +250,19 @@ export const sendUserChanges = async (socket:any, data:any) => await sendMessage
   },
 });
 
+
+/*
+  * Convenience function to send a delete pad request.
+ */
+export const sendPadDelete = async (socket:any, data:any) => await sendMessage(socket, {
+  type: 'PAD_DELETE',
+  component: 'pad',
+  data: {
+    padId: data.padId
+  },
+});
+
+
 /**
  * Convenience function that waits for an ACCEPT_COMMIT message. Asserts that the new revision
  * matches the expected revision.

ui/pad.html

@@ -385,7 +385,7 @@ <h2 data-l10n-id="pad.settings.myView"></h2>
       </p>
 
     </div>
-
+    <button data-l10n-id="pad.settings.delete">Delete pad</button>
     <h2 data-l10n-id="pad.settings.about">About</h2>
     <span data-l10n-id="pad.settings.poweredBy">Powered by</span>
     <a href="https://etherpad.org">Etherpad</a>