mv element.io @types __mocks__/ debian docker module_system/ playwright res src test webapp Dockerfile .dockerignore .eslintignore .stylelintrc.cjs babel.config.cjs recorder-worklet-loader.cjs .modernizr.json components.json config.json config.sample.json package.json project.json tsconfig.json tsconfig.module_system.json jest.config.ts playwright.config.ts webpack.config.ts build_config.sample.yaml apps/web/

mkdir apps/web/scripts mv scripts/{cleanup.sh,ci_package.sh,copy-res.ts,deploy.py,package.sh} apps/web/scripts And a couple of gitignore tweaks Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>
2026-02-24 15:43:58 +00:00
parent e7509c92a1
commit 91a3cb03c1
3408 changed files with 28 additions and 32 deletions
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2024 New Vector Ltd.
+ * Copyright 2023 The Matrix.org Foundation C.I.C.
+ * Copyright 2021 Šimon Brandner <simon.bra.ag@gmail.com>
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+import { type IContent, type IEventRelation, type MatrixEvent, THREAD_RELATION_TYPE } from "matrix-js-sdk/src/matrix";
+import sanitizeHtml from "sanitize-html";
+
+import { PERMITTED_URL_SCHEMES } from "./UrlUtils";
+
+export function getParentEventId(ev?: MatrixEvent): string | undefined {
+    if (!ev || ev.isRedacted()) return;
+    if (ev.replyEventId) {
+        return ev.replyEventId;
+    }
+}
+
+// Part of Replies fallback support
+export function stripPlainReply(body: string): string {
+    // Removes lines beginning with `> ` until you reach one that doesn't.
+    const lines = body.split("\n");
+    while (lines.length && lines[0].startsWith("> ")) lines.shift();
+    // Reply fallback has a blank line after it, so remove it to prevent leading newline
+    if (lines[0] === "") lines.shift();
+    return lines.join("\n");
+}
+
+// Part of Replies fallback support - MUST NOT BE RENDERED DIRECTLY - UNSAFE HTML
+export function stripHTMLReply(html: string): string {
+    // Sanitize the original HTML for inclusion in <mx-reply>.  We allow
+    // any HTML, since the original sender could use special tags that we
+    // don't recognize, but want to pass along to any recipients who do
+    // recognize them -- recipients should be sanitizing before displaying
+    // anyways.  However, we sanitize to 1) remove any mx-reply, so that we
+    // don't generate a nested mx-reply, and 2) make sure that the HTML is
+    // properly formatted (e.g. tags are closed where necessary)
+    return sanitizeHtml(html, {
+        allowedTags: false, // false means allow everything
+        allowedAttributes: false,
+        allowVulnerableTags: true, // silence xss warning, we won't be rendering directly this, so it is safe to do
+        // we somehow can't allow all schemes, so we allow all that we
+        // know of and mxc (for img tags)
+        allowedSchemes: [...PERMITTED_URL_SCHEMES, "mxc"],
+        exclusiveFilter: (frame) => frame.tag === "mx-reply",
+    });
+}
+
+export function makeReplyMixIn(ev?: MatrixEvent): IEventRelation {
+    if (!ev) return {};
+
+    const mixin: IEventRelation = {
+        "m.in_reply_to": {
+            event_id: ev.getId(),
+        },
+    };
+
+    if (ev.threadRootId) {
+        mixin.is_falling_back = false;
+    }
+
+    return mixin;
+}
+
+export function shouldDisplayReply(event: MatrixEvent): boolean {
+    if (event.isRedacted()) {
+        return false;
+    }
+
+    const inReplyTo = event.getWireContent()?.["m.relates_to"]?.["m.in_reply_to"];
+    if (!inReplyTo) {
+        return false;
+    }
+
+    const relation = event.getRelation();
+    if (relation?.rel_type === THREAD_RELATION_TYPE.name && relation?.is_falling_back) {
+        return false;
+    }
+
+    return !!inReplyTo.event_id;
+}
+
+export function addReplyToMessageContent(content: IContent, replyToEvent: MatrixEvent): void {
+    content["m.relates_to"] = {
+        ...(content["m.relates_to"] || {}),
+        ...makeReplyMixIn(replyToEvent),
+    };
+}