Web app: implement markdown support

2023-07-05 19:33:45 +02:00 · 2023-07-05 19:33:45 +02:00 · f989fd0743
parent 56ed4f0515
commit f989fd0743
7 changed files with 648 additions and 8 deletions
--- a/web/package-lock.json
+++ b/web/package-lock.json
@ -24,6 +24,7 @@
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@ -3088,6 +3113,15 @@
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@ -3228,6 +3262,33 @@
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@ -4137,6 +4206,11 @@
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@ -4567,6 +4641,24 @@
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@ -4747,6 +4866,28 @@
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+          "type": "OpenCollective",
+          "url": "https://opencollective.com/unified"
+        }
+      ],
+      "dependencies": {
+        "debug": "^4.0.0",
+        "parse-entities": "^2.0.0"
+      }
+    },
    "node_modules/micromatch": {
      "version": "4.0.5",
      "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.5.tgz",
@ -5372,8 +5673,7 @@
    "node_modules/ms": {
      "version": "2.1.2",
      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
-      "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
-      "dev": true
+      "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
    },
    "node_modules/nanoid": {
      "version": "3.3.6",
@ -5596,6 +5896,23 @@
        "node": ">=6"
      }
    },
+    "node_modules/parse-entities": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/parse-entities/-/parse-entities-2.0.0.tgz",
+      "integrity": "sha512-kkywGpCcRYhqQIchaWqZ875wzpS/bMKhz5HnN3p7wveJTkTtyAB/AlnS0f8DFSqYW1T82t6yEAkEcB+A1I3MbQ==",
+      "dependencies": {
+        "character-entities": "^1.0.0",
+        "character-entities-legacy": "^1.0.0",
+        "character-reference-invalid": "^1.0.0",
+        "is-alphanumerical": "^1.0.0",
+        "is-decimal": "^1.0.0",
+        "is-hexadecimal": "^1.0.0"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/wooorm"
+      }
+    },
    "node_modules/parse-json": {
      "version": "5.2.0",
      "resolved": "https://registry.npmjs.org/parse-json/-/parse-json-5.2.0.tgz",
@ -5750,6 +6067,18 @@
      "resolved": "https://registry.npmjs.org/react-is/-/react-is-16.13.1.tgz",
      "integrity": "sha512-24e6ynE2H+OKt4kqsOvNd8kBpV65zoxbA4BVsEOB3ARVWQki/DHzaUoC5KuON/BiccDaCCTZBuOcfZs70kR8bQ=="
    },
+    "node_modules/property-information": {
+      "version": "5.6.0",
+      "resolved": "https://registry.npmjs.org/property-information/-/property-information-5.6.0.tgz",
+      "integrity": "sha512-YUHSPk+A30YPv+0Qf8i9Mbfe/C0hdPXk1s1jPVToV8pk8BQtpw10ct89Eo7OWkutrwqvT0eicAxlOg3dOAu8JA==",
+      "dependencies": {
+        "xtend": "^4.0.0"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/wooorm"
+      }
+    },
    "node_modules/punycode": {
      "version": "2.3.0",
      "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.3.0.tgz",
@ -5857,6 +6186,27 @@
        "node": ">=0.10.0"
      }
    },
+    "node_modules/react-remark": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/react-remark/-/react-remark-2.1.0.tgz",
+      "integrity": "sha512-7dEPxRGQ23sOdvteuRGaQAs9cEOH/BOeCN4CqsJdk3laUDIDYRCWnM6a3z92PzXHUuxIRLXQNZx7SiO0ijUcbw==",
+      "dependencies": {
+        "rehype-react": "^6.0.0",
+        "remark-parse": "^9.0.0",
+        "remark-rehype": "^8.0.0",
+        "unified": "^9.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      },
+      "peerDependencies": {
+        "react": ">=16.8"
+      }
+    },
    "node_modules/react-router": {
      "version": "6.14.1",
      "resolved": "https://registry.npmjs.org/react-router/-/react-router-6.14.1.tgz",
@ -5989,6 +6339,43 @@
        "jsesc": "bin/jsesc"
      }
    },
+    "node_modules/rehype-react": {
+      "version": "6.2.1",
+      "resolved": "https://registry.npmjs.org/rehype-react/-/rehype-react-6.2.1.tgz",
+      "integrity": "sha512-f9KIrjktvLvmbGc7si25HepocOg4z0MuNOtweigKzBcDjiGSTGhyz6VSgaV5K421Cq1O+z4/oxRJ5G9owo0KVg==",
+      "dependencies": {
+        "@mapbox/hast-util-table-cell-style": "^0.2.0",
+        "hast-to-hyperscript": "^9.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      }
+    },
+    "node_modules/remark-parse": {
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/remark-parse/-/remark-parse-9.0.0.tgz",
+      "integrity": "sha512-geKatMwSzEXKHuzBNU1z676sGcDcFoChMK38TgdHJNAYfFtsfHDQG7MoJAjs6sgYMqyLduCYWDIWZIxiPeafEw==",
+      "dependencies": {
+        "mdast-util-from-markdown": "^0.8.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      }
+    },
+    "node_modules/remark-rehype": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/remark-rehype/-/remark-rehype-8.1.0.tgz",
+      "integrity": "sha512-EbCu9kHgAxKmW1yEYjx3QafMyGY3q8noUbNUI5xyKbaFP89wbhDrKxyIQNukNYthzjNHZu6J7hwFg7hRm1svYA==",
+      "dependencies": {
+        "mdast-util-to-hast": "^10.2.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      }
+    },
    "node_modules/require-from-string": {
      "version": "2.0.2",
      "resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz",
@ -6224,6 +6611,15 @@
      "deprecated": "Please use @jridgewell/sourcemap-codec instead",
      "dev": true
    },
+    "node_modules/space-separated-tokens": {
+      "version": "1.1.5",
+      "resolved": "https://registry.npmjs.org/space-separated-tokens/-/space-separated-tokens-1.1.5.tgz",
+      "integrity": "sha512-q/JSVd1Lptzhf5bkYm4ob4iWPjx0KiRe3sRFBNrVqbJkFaBm5vbbowy1mymoPNLRa52+oadOhJ+K49wsSeSjTA==",
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/wooorm"
+      }
+    },
    "node_modules/stack-generator": {
      "version": "2.0.10",
      "resolved": "https://registry.npmjs.org/stack-generator/-/stack-generator-2.0.10.tgz",
@ -6384,6 +6780,14 @@
        "url": "https://github.com/sponsors/sindresorhus"
      }
    },
+    "node_modules/style-to-object": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/style-to-object/-/style-to-object-0.3.0.tgz",
+      "integrity": "sha512-CzFnRRXhzWIdItT3OmF8SQfWyahHhjq3HwcMNCNLn+N7klOOqPjMeG/4JSu77D7ypZdGvSzvkrbyeTMizz2VrA==",
+      "dependencies": {
+        "inline-style-parser": "0.1.1"
+      }
+    },
    "node_modules/stylis": {
      "version": "4.3.0",
      "resolved": "https://registry.npmjs.org/stylis/-/stylis-4.3.0.tgz",
@ -6506,6 +6910,15 @@
      "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
      "integrity": "sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw=="
    },
+    "node_modules/trough": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/trough/-/trough-1.0.5.tgz",
+      "integrity": "sha512-rvuRbTarPXmMb79SmzEp8aqXNKcK+y0XaB298IXueQ8I2PsrATcPBCSPyK/dDNa2iWOhKlfNnOjdAOTBU/nkFA==",
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/wooorm"
+      }
+    },
    "node_modules/tsconfig-paths": {
      "version": "3.14.2",
      "resolved": "https://registry.npmjs.org/tsconfig-paths/-/tsconfig-paths-3.14.2.tgz",
@ -6623,6 +7036,23 @@
        "node": ">=4"
      }
    },
+    "node_modules/unified": {
+      "version": "9.2.2",
+      "resolved": "https://registry.npmjs.org/unified/-/unified-9.2.2.tgz",
+      "integrity": "sha512-Sg7j110mtefBD+qunSLO1lqOEKdrwBFBrR6Qd8f4uwkhWNlbkaqwHse6e7QvD3AP/MNoJdEDLaf8OxYyoWgorQ==",
+      "dependencies": {
+        "bail": "^1.0.0",
+        "extend": "^3.0.0",
+        "is-buffer": "^2.0.0",
+        "is-plain-obj": "^2.0.0",
+        "trough": "^1.0.0",
+        "vfile": "^4.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      }
+    },
    "node_modules/unique-string": {
      "version": "2.0.0",
      "resolved": "https://registry.npmjs.org/unique-string/-/unique-string-2.0.0.tgz",
@ -6635,6 +7065,75 @@
        "node": ">=8"
      }
    },
+    "node_modules/unist-builder": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/unist-builder/-/unist-builder-2.0.3.tgz",
+      "integrity": "sha512-f98yt5pnlMWlzP539tPc4grGMsFaQQlP/vM396b00jngsiINumNmsY8rkXjfoi1c6QaM8nQ3vaGDuoKWbe/1Uw==",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      }
+    },
+    "node_modules/unist-util-generated": {
+      "version": "1.1.6",
+      "resolved": "https://registry.npmjs.org/unist-util-generated/-/unist-util-generated-1.1.6.tgz",
+      "integrity": "sha512-cln2Mm1/CZzN5ttGK7vkoGw+RZ8VcUH6BtGbq98DDtRGquAAOXig1mrBQYelOwMXYS8rK+vZDyyojSjp7JX+Lg==",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      }
+    },
+    "node_modules/unist-util-is": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/unist-util-is/-/unist-util-is-4.1.0.tgz",
+      "integrity": "sha512-ZOQSsnce92GrxSqlnEEseX0gi7GH9zTJZ0p9dtu87WRb/37mMPO2Ilx1s/t9vBHrFhbgweUwb+t7cIn5dxPhZg==",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      }
+    },
+    "node_modules/unist-util-position": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/unist-util-position/-/unist-util-position-3.1.0.tgz",
+      "integrity": "sha512-w+PkwCbYSFw8vpgWD0v7zRCl1FpY3fjDSQ3/N/wNd9Ffa4gPi8+4keqt99N3XW6F99t/mUzp2xAhNmfKWp95QA==",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      }
+    },
+    "node_modules/unist-util-stringify-position": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/unist-util-stringify-position/-/unist-util-stringify-position-2.0.3.tgz",
+      "integrity": "sha512-3faScn5I+hy9VleOq/qNbAd6pAx7iH5jYBMS9I1HgQVijz/4mv5Bvw5iw1sC/90CODiKo81G/ps8AJrISn687g==",
+      "dependencies": {
+        "@types/unist": "^2.0.2"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      }
+    },
+    "node_modules/unist-util-visit": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/unist-util-visit/-/unist-util-visit-1.4.1.tgz",
+      "integrity": "sha512-AvGNk7Bb//EmJZyhtRUnNMEpId/AZ5Ph/KUpTI09WHQuDZHKovQ1oEv3mfmKpWKtoMzyMC4GLBm1Zy5k12fjIw==",
+      "dependencies": {
+        "unist-util-visit-parents": "^2.0.0"
+      }
+    },
+    "node_modules/unist-util-visit-parents": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/unist-util-visit-parents/-/unist-util-visit-parents-2.1.2.tgz",
+      "integrity": "sha512-DyN5vD4NE3aSeB+PXYNKxzGsfocxp6asDc2XXE3b0ekO2BaRUpBicbbUygfSvYfUz1IkmjFR1YF7dPklraMZ2g==",
+      "dependencies": {
+        "unist-util-is": "^3.0.0"
+      }
+    },
+    "node_modules/unist-util-visit-parents/node_modules/unist-util-is": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/unist-util-is/-/unist-util-is-3.0.0.tgz",
+      "integrity": "sha512-sVZZX3+kspVNmLWBPAB6r+7D9ZgAFPNWm66f7YNb420RlQSbn+n8rG8dGZSkrER7ZIXGQYNm5pqC3v3HopH24A=="
+    },
    "node_modules/universalify": {
      "version": "2.0.0",
      "resolved": "https://registry.npmjs.org/universalify/-/universalify-2.0.0.tgz",
@ -6693,6 +7192,34 @@
        "punycode": "^2.1.0"
      }
    },
+    "node_modules/vfile": {
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/vfile/-/vfile-4.2.1.tgz",
+      "integrity": "sha512-O6AE4OskCG5S1emQ/4gl8zK586RqA3srz3nfK/Viy0UPToBc5Trp9BVFb1u0CjsKrAWwnpr4ifM/KBXPWwJbCA==",
+      "dependencies": {
+        "@types/unist": "^2.0.0",
+        "is-buffer": "^2.0.0",
+        "unist-util-stringify-position": "^2.0.0",
+        "vfile-message": "^2.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      }
+    },
+    "node_modules/vfile-message": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/vfile-message/-/vfile-message-2.0.4.tgz",
+      "integrity": "sha512-DjssxRGkMvifUOJre00juHoP9DPWuzjxKuMDrhNbk2TdaYYBNMStsNhEOt3idrtI12VQYM/1+iM0KOzXi4pxwQ==",
+      "dependencies": {
+        "@types/unist": "^2.0.0",
+        "unist-util-stringify-position": "^2.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      }
+    },
    "node_modules/vite": {
      "version": "4.3.9",
      "resolved": "https://registry.npmjs.org/vite/-/vite-4.3.9.tgz",
@ -6770,6 +7297,15 @@
        "node": ">=0.10.0"
      }
    },
+    "node_modules/web-namespaces": {
+      "version": "1.1.4",
+      "resolved": "https://registry.npmjs.org/web-namespaces/-/web-namespaces-1.1.4.tgz",
+      "integrity": "sha512-wYxSGajtmoP4WxfejAPIr4l0fVh+jeMXZb08wNc0tMg6xsfZXj3cECqIK0G7ZAqUq0PP8WlMDtaOGVBTAWztNw==",
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/wooorm"
+      }
+    },
    "node_modules/webidl-conversions": {
      "version": "3.0.1",
      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
@ -7226,6 +7762,14 @@
      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
      "dev": true
    },
+    "node_modules/xtend": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
+      "engines": {
+        "node": ">=0.4"
+      }
+    },
    "node_modules/yallist": {
      "version": "3.1.1",
      "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
--- a/web/package.json
+++ b/web/package.json
@ -27,6 +27,7 @@
    "react-dom": "latest",
    "react-i18next": "^11.16.2",
    "react-infinite-scroll-component": "^6.1.0",
+    "react-remark": "^2.1.0",
    "react-router-dom": "^6.2.2",
    "stacktrace-gps": "^3.0.4",
    "stacktrace-js": "^2.0.2",
--- a/web/public/static/langs/en.json
+++ b/web/public/static/langs/en.json
@ -359,6 +359,9 @@
  "prefs_appearance_theme_system": "System (default)",
  "prefs_appearance_theme_dark": "Dark mode",
  "prefs_appearance_theme_light": "Light mode",
+  "prefs_appearance_markdown_always_enabled_title": "Format all messages as Markdown",
+  "prefs_appearance_markdown_always_enabled_on": "Enabled",
+  "prefs_appearance_markdown_always_enabled_off": "Disabled",
  "prefs_reservations_title": "Reserved topics",
  "prefs_reservations_description": "You can reserve topic names for personal use here. Reserving a topic gives you ownership over the topic, and allows you to define access permissions for other users over the topic.",
  "prefs_reservations_limit_reached": "You reached your reserved topics limit.",
--- a/web/src/app/Prefs.js
+++ b/web/src/app/Prefs.js
@ -55,6 +55,15 @@ class Prefs {
  async setTheme(mode) {
    await this.db.prefs.put({ key: "theme", value: mode });
  }
+
+  async markdownAlwaysEnabled() {
+    const record = await this.db.prefs.get("markdownAlwaysEnabled");
+    return record?.value ?? false;
+  }
+
+  async setMarkdownAlwaysEnabled(enabled) {
+    await this.db.prefs.put({ key: "markdownAlwaysEnabled", value: enabled });
+  }
 }

 const prefs = new Prefs(db());
--- a/web/src/app/utils.js
+++ b/web/src/app/utils.js
@ -89,15 +89,15 @@ export const maybeWithAuth = (headers, user) => {
  return headers;
 };

-export const maybeAppendActionErrors = (message, notification) => {
+export const maybeActionErrors = (notification) => {
  const actionErrors = (notification.actions ?? [])
    .map((action) => action.error)
    .filter((action) => !!action)
    .join("\n");
  if (actionErrors.length === 0) {
-    return message;
+    return undefined;
  }
-  return `${message}\n\n${actionErrors}`;
+  return actionErrors;
 };

 export const shuffle = (arr) => {
--- a/web/src/components/Notifications.jsx
+++ b/web/src/components/Notifications.jsx
@ -24,7 +24,9 @@ import { useLiveQuery } from "dexie-react-hooks";
 import InfiniteScroll from "react-infinite-scroll-component";
 import { Trans, useTranslation } from "react-i18next";
 import { useOutletContext } from "react-router-dom";
-import { formatBytes, formatShortDateTime, maybeAppendActionErrors, openUrl, shortUrl, topicShortUrl, unmatchedTags } from "../app/utils";
+import { useRemark } from "react-remark";
+import styled from "@emotion/styled";
+import { formatBytes, formatShortDateTime, maybeActionErrors, openUrl, shortUrl, topicShortUrl, unmatchedTags } from "../app/utils";
 import { formatMessage, formatTitle } from "../app/notificationUtils";
 import { LightboxBackdrop, Paragraph, VerticallyCenteredContainer } from "./styles";
 import subscriptionManager from "../app/SubscriptionManager";
@ -35,6 +37,7 @@ import priority5 from "../img/priority-5.svg";
 import logoOutline from "../img/ntfy-outline.svg";
 import AttachmentIcon from "./AttachmentIcon";
 import { useAutoSubscribe } from "./hooks";
+import prefs from "../app/Prefs";

 const priorityFiles = {
  1: priority1,
@ -159,6 +162,63 @@ const autolink = (s) => {
  return <>{parts}</>;
 };

+const MarkdownContainer = styled("div")`
+  line-height: 1;
+
+  h1,
+  h2,
+  h3,
+  h4,
+  h5,
+  h6,
+  p,
+  pre,
+  ul,
+  ol {
+    margin: 0;
+  }
+
+  p {
+    line-height: 1.2;
+  }
+
+  blockquote {
+    margin: 0;
+    padding-inline: 1rem;
+    background: ${(theme) => (theme.mode === "light" ? "#f1f1f1" : "#aeaeae")};
+  }
+
+  ul,
+  ol {
+    padding-inline: 1rem;
+  }
+`;
+
+const MarkdownContent = ({ content }) => {
+  const [reactContent, setMarkdownSource] = useRemark();
+
+  useEffect(() => {
+    setMarkdownSource(content);
+  }, [content]);
+
+  return <MarkdownContainer>{reactContent}</MarkdownContainer>;
+};
+
+const NotificationBody = ({ notification }) => {
+  const markdownAlwaysEnabled = useLiveQuery(async () => prefs.markdownAlwaysEnabled());
+
+  // TODO: check notification content-type when implemented on the server
+  const displayAsMarkdown = markdownAlwaysEnabled;
+
+  const formatted = formatMessage(notification);
+
+  if (displayAsMarkdown) {
+    return <MarkdownContent content={formatted} />;
+  }
+
+  return autolink(formatted);
+};
+
 const NotificationItem = (props) => {
  const { t, i18n } = useTranslation();
  const { notification } = props;
@ -183,6 +243,7 @@ const NotificationItem = (props) => {
  const hasClickAction = notification.click;
  const hasUserActions = notification.actions && notification.actions.length > 0;
  const showActions = hasAttachmentActions || hasClickAction || hasUserActions;
+
  return (
    <Card sx={{ padding: 1 }} role="listitem" aria-label={t("notifications_list_item")}>
      <CardContent>
@ -230,7 +291,8 @@ const NotificationItem = (props) => {
          </Typography>
        )}
        <Typography variant="body1" sx={{ whiteSpace: "pre-line" }}>
-          {autolink(maybeAppendActionErrors(formatMessage(notification), notification))}
+          <NotificationBody notification={notification} />
+          {maybeActionErrors(notification)}
        </Typography>
        {attachment && <Attachment attachment={attachment} />}
        {tags && (
--- a/web/src/components/Preferences.jsx
+++ b/web/src/components/Preferences.jsx
@ -259,6 +259,26 @@ const Theme = () => {
  );
 };

+const MarkdownAlwaysEnabled = () => {
+  const { t } = useTranslation();
+  const labelId = "prefMarkdown";
+  const enabled = useLiveQuery(async () => prefs.markdownAlwaysEnabled());
+  const handleChange = async (ev) => {
+    await prefs.setMarkdownAlwaysEnabled(ev.target.value);
+  };
+
+  return (
+    <Pref labelId={labelId} title={t("prefs_appearance_markdown_always_enabled_title")}>
+      <FormControl fullWidth variant="standard" sx={{ m: 1 }}>
+        <Select value={enabled ?? false} onChange={handleChange} aria-labelledby={labelId}>
+          <MenuItem value>{t("prefs_appearance_markdown_always_enabled_on")}</MenuItem>
+          <MenuItem value={false}>{t("prefs_appearance_markdown_always_enabled_off")}</MenuItem>
+        </Select>
+      </FormControl>
+    </Pref>
+  );
+};
+
 const WebPushEnabled = () => {
  const { t } = useTranslation();
  const labelId = "prefWebPushEnabled";
@ -513,6 +533,7 @@ const Appearance = () => {
      <PrefGroup>
        <Theme />
        <Language />
+        <MarkdownAlwaysEnabled />
      </PrefGroup>
    </Card>
  );