chore: team url slugify and profanity filter

Signed-off-by: Adithya Krishna <adi@documenso.com>

packages/lib/utils/generate-url-slug.ts

@@ -0,0 +1,25 @@
+const diacriticRegex = /\p{Diacritic}/gu;
+const nonAlphanumericRegex = /[^.\p{L}\p{N}\p{Zs}\p{Emoji}]+/gu;
+const whitespaceUnderscoreRegex = /[\s_#]+/g;
+const dashStartRegex = /^-+/;
+const multipleDotsRegex = /\.{2,}/g;
+
+export const generateURLSlug = (str: string, forDisplayingInput?: boolean) => {
+  if (!str) {
+    return '';
+  }
+
+  const slug = str
+    .toLowerCase()
+    .trim()
+    .normalize('NFD')
+    .replace(diacriticRegex, '')
+    .replace(nonAlphanumericRegex, '-')
+    .replace(whitespaceUnderscoreRegex, '-')
+    .replace(dashStartRegex, '') // Remove dashes from start
+    .replace(multipleDotsRegex, '.'); // Replace consecutive periods with a single period
+
+  return forDisplayingInput ? slug : slug.replace(/-*$/g, ''); // Remove dashes from end
+};
+
+export default generateURLSlug;

packages/trpc/package.json

@@ -17,10 +17,13 @@
     "@trpc/next": "^10.36.0",
     "@trpc/react-query": "^10.36.0",
     "@trpc/server": "^10.36.0",
+    "bad-words": "^3.0.4",
     "luxon": "^3.4.0",
     "superjson": "^1.13.1",
     "ts-pattern": "^5.0.5",
     "zod": "^3.22.4"
   },
-  "devDependencies": {}
+  "devDependencies": {
+    "@types/bad-words": "^3.0.3"
+  }
 }

packages/trpc/server/team-router/schema.ts

@@ -2,6 +2,12 @@ import { z } from 'zod';
 
 import { TeamMemberRole } from '@documenso/prisma/client';
 
+import { generateURLSlug } from '@documenso/lib/utils/generate-url-slug';
+
+import badWords from 'bad-words';
+
+const filter = new badWords();
+
 const GenericFindQuerySchema = z.object({
   term: z.string().optional(),
   page: z.number().optional(),
@@ -20,7 +26,12 @@ export const ZAddTeamEmailVerificationMutationSchema = z.object({
 
 export const ZCreateTeamMutationSchema = z.object({
   name: z.string().min(1),
-  url: z.string().min(1), // Todo: Teams - Apply lowercase, disallow certain symbols, disallow profanity.
+  url: z.string().min(1).refine((value) => {
+    const generatedSlug = generateURLSlug(value);
+    return !filter.isProfane(value.toLowerCase()) && generatedSlug === value.toLowerCase();
+  }, {
+    message: 'URL contains inappropriate language or unsupported characters',
+  }),
 });
 
 export const ZCreateTeamMemberInvitesMutationSchema = z.object({
@@ -100,7 +111,12 @@ export const ZUpdateTeamMutationSchema = z.object({
   data: z.object({
     // Todo: Teams
     name: z.string().min(1),
-    url: z.string().min(1), // Todo: Apply regex. Todo: lowercase, etc
+    url: z.string().min(1).refine((value) => {
+      const generatedSlug = generateURLSlug(value);
+      return !filter.isProfane(value.toLowerCase()) && generatedSlug === value.toLowerCase();
+    }, {
+      message: 'URL contains inappropriate language or unsupported characters',
+    }),
   }),
 });