From cb592dc709cb0386cbcd218660454ad87cf8467b Mon Sep 17 00:00:00 2001
From: Michael Telatynski <7t3chguy@gmail.com>
Date: Fri, 14 Jul 2023 11:55:55 +0100
Subject: [PATCH] Fix clicking MXID in timeline going to matrix.to (#11263)

* Fix clicking MXID in timeline going to matrix.to

* Add tests

* Increase coverage
---
 src/linkify-matrix.ts       |  8 ++----
 test/linkify-matrix-test.ts | 49 ++++++++++++++++++++++++++++++++++++-
 2 files changed, 50 insertions(+), 7 deletions(-)

diff --git a/src/linkify-matrix.ts b/src/linkify-matrix.ts
index f6dcbfff6f..f5a419f0a7 100644
--- a/src/linkify-matrix.ts
+++ b/src/linkify-matrix.ts
@@ -139,7 +139,6 @@ export const options: Opts = {
                     const permalink = parsePermalink(href);
                     if (permalink?.userId) {
                         return {
-                            // @ts-ignore see https://linkify.js.org/docs/options.html
                             click: function (e: MouseEvent) {
                                 onUserClick(e, permalink.userId!);
                             },
@@ -150,7 +149,6 @@ export const options: Opts = {
                         if (localHref !== href) {
                             // it could be converted to a localHref -> therefore handle locally
                             return {
-                                // @ts-ignore see https://linkify.js.org/docs/options.html
                                 click: function (e: MouseEvent) {
                                     e.preventDefault();
                                     window.location.hash = localHref;
@@ -165,17 +163,15 @@ export const options: Opts = {
             }
             case Type.UserId:
                 return {
-                    // @ts-ignore see https://linkify.js.org/docs/options.html
                     click: function (e: MouseEvent) {
-                        const userId = parsePermalink(href)?.userId;
+                        const userId = parsePermalink(href)?.userId ?? href;
                         if (userId) onUserClick(e, userId);
                     },
                 };
             case Type.RoomAlias:
                 return {
-                    // @ts-ignore see https://linkify.js.org/docs/options.html
                     click: function (e: MouseEvent) {
-                        const alias = parsePermalink(href)?.roomIdOrAlias;
+                        const alias = parsePermalink(href)?.roomIdOrAlias ?? href;
                         if (alias) onAliasClick(e, alias);
                     },
                 };
diff --git a/test/linkify-matrix-test.ts b/test/linkify-matrix-test.ts
index 4fd2166c2b..bb27accf77 100644
--- a/test/linkify-matrix-test.ts
+++ b/test/linkify-matrix-test.ts
@@ -13,7 +13,12 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 */
-import { linkify, Type } from "../src/linkify-matrix";
+
+import { EventListeners } from "linkifyjs";
+
+import { linkify, Type, options } from "../src/linkify-matrix";
+import dispatcher from "../src/dispatcher/dispatcher";
+import { Action } from "../src/dispatcher/actions";
 
 describe("linkify-matrix", () => {
     const linkTypesByInitialCharacter: Record<string, string> = {
@@ -324,6 +329,26 @@ describe("linkify-matrix", () => {
 
     describe("roomalias plugin", () => {
         genTests("#");
+
+        it("should intercept clicks with a ViewRoom dispatch", () => {
+            const dispatchSpy = jest.spyOn(dispatcher, "dispatch");
+
+            const handlers = (options.events as (href: string, type: string) => EventListeners)(
+                "#room:server.com",
+                "roomalias",
+            );
+
+            const event = new MouseEvent("mousedown");
+            event.preventDefault = jest.fn();
+            handlers.click(event);
+            expect(event.preventDefault).toHaveBeenCalled();
+            expect(dispatchSpy).toHaveBeenCalledWith(
+                expect.objectContaining({
+                    action: Action.ViewRoom,
+                    room_alias: "#room:server.com",
+                }),
+            );
+        });
     });
 
     describe("userid plugin", () => {
@@ -344,6 +369,28 @@ describe("linkify-matrix", () => {
                 },
             ]);
         });
+
+        it("should intercept clicks with a ViewUser dispatch", () => {
+            const dispatchSpy = jest.spyOn(dispatcher, "dispatch");
+
+            const handlers = (options.events as (href: string, type: string) => EventListeners)(
+                "@localpart:server.com",
+                "userid",
+            );
+
+            const event = new MouseEvent("mousedown");
+            event.preventDefault = jest.fn();
+            handlers.click(event);
+            expect(event.preventDefault).toHaveBeenCalled();
+            expect(dispatchSpy).toHaveBeenCalledWith(
+                expect.objectContaining({
+                    action: Action.ViewUser,
+                    member: expect.objectContaining({
+                        userId: "@localpart:server.com",
+                    }),
+                }),
+            );
+        });
     });
 
     describe("matrix uri", () => {